/* roulang page: index */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-dark: #0f1f35;
            --accent: #f4a261;
            --accent-dark: #e07b2c;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #6c757d;
            --text-light: #adb5bd;
            --text-white: #ffffff;
            --border-color: #e0e4e8;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 56px rgba(0, 0, 0, 0.18);
            --shadow-primary: 0 8px 28px rgba(230, 57, 70, 0.30);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.40s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --nav-height: 72px;
            --container-max: 1240px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 0;
        }
        h1 {
            font-size: 2.6rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.45rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }
        .nav-left {
            justify-content: flex-end;
        }
        .nav-right {
            justify-content: flex-start;
        }
        .nav-logo-wrap {
            flex-shrink: 0;
            text-align: center;
            padding: 0 12px;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            display: inline-block;
        }
        .nav-logo:hover {
            color: var(--primary-dark);
        }
        .nav-logo .logo-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            color: #fff;
            text-align: center;
            line-height: 34px;
            font-size: 1rem;
            margin-right: 6px;
            vertical-align: middle;
        }
        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }
        .nav-link-item:hover,
        .nav-link-item.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .nav-link-item.active {
            font-weight: 600;
        }
        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-toggle:hover {
            background: var(--border-light);
        }

        /* Mobile Nav */
        @media (max-width: 1024px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .nav-logo-wrap {
                margin: 0 auto;
            }
            .site-header.mobile-open .nav-left,
            .site-header.mobile-open .nav-right {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                padding: 16px 24px;
                gap: 4px;
                z-index: 1040;
                align-items: stretch;
            }
            .site-header.mobile-open .nav-left {
                border-bottom: 1px solid var(--border-light);
                padding-bottom: 12px;
            }
            .site-header.mobile-open .nav-right {
                top: calc(var(--nav-height) + 60px);
                border-bottom: none;
                padding-top: 12px;
            }
            .nav-link-item {
                padding: 10px 16px;
                border-radius: var(--radius-sm);
                text-align: center;
                justify-content: center;
                font-size: 1rem;
            }
        }

        /* ========== SECTIONS ========== */
        section {
            padding: 64px 0;
            position: relative;
        }
        @media (max-width: 768px) {
            section {
                padding: 40px 0;
            }
        }
        .section-tag {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 6px 16px;
            border-radius: 50px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 40px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-header.left {
            text-align: left;
            margin-bottom: 32px;
        }

        /* ========== HERO - 白皮书获客 ========== */
        .hero-section {
            padding: 0;
            background: linear-gradient(170deg, #0f1f35 0%, #1a2a40 40%, #1d3557 100%);
            position: relative;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: -10%;
            width: 55%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.2) 60%, transparent 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.2) 60%, transparent 100%);
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-body) 0%, transparent 100%);
            z-index: 1;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding: 60px 0;
        }
        @media (max-width: 768px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 40px 0;
            }
            .hero-section::before {
                width: 100%;
                right: 0;
                opacity: 0.18;
            }
        }
        .hero-text {
            color: #fff;
        }
        .hero-text .hero-badge {
            display: inline-block;
            background: rgba(244, 162, 97, 0.2);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 5px 14px;
            border-radius: 50px;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .hero-text h1 {
            color: #fff;
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .hero-text h1 span {
            color: var(--primary-light);
        }
        .hero-text .hero-desc {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 480px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 13px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.02em;
        }
        .btn-primary-custom:hover {
            background: var(--primary-dark);
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.40);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-custom {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.40);
            padding: 12px 26px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline-custom:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-ebook-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            display: flex;
            gap: 22px;
            align-items: flex-start;
            transition: all var(--transition-slow);
            position: relative;
        }
        .hero-ebook-card:hover {
            border-color: rgba(255, 255, 255, 0.35);
            background: rgba(255, 255, 255, 0.10);
            box-shadow: var(--shadow-lg);
        }
        .hero-ebook-cover {
            width: 120px;
            height: 160px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #e63946 0%, #c1121f 100%);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.4rem;
            color: #fff;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }
        .hero-ebook-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-md);
        }
        .hero-ebook-info {
            flex: 1;
            min-width: 0;
        }
        .hero-ebook-info h3 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 6px;
            font-weight: 700;
        }
        .hero-ebook-info .ebook-meta {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            margin-bottom: 10px;
        }
        .hero-ebook-info ul {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }
        .hero-ebook-info ul li {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            padding: 3px 0;
            padding-left: 18px;
            position: relative;
        }
        .hero-ebook-info ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: 700;
            font-size: 0.8rem;
        }
        .hero-ebook-info .btn-sm-download {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .hero-ebook-info .btn-sm-download:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(244, 162, 97, 0.35);
        }

        /* ========== 优惠阶梯 ========== */
        .tier-section {
            background: var(--bg-white);
        }
        .tier-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        @media (max-width: 992px) {
            .tier-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .tier-steps {
                grid-template-columns: 1fr;
            }
        }
        .tier-step {
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            position: relative;
            transition: all var(--transition-base);
            border: 2px solid transparent;
        }
        .tier-step:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .tier-step .tier-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 14px;
        }
        .tier-step h4 {
            font-weight: 700;
            margin-bottom: 6px;
        }
        .tier-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .tier-step .tier-badge {
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.03em;
        }

        /* ========== 套餐对比 ========== */
        .pricing-section {
            background: var(--bg-section);
        }
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }
        @media (max-width: 992px) {
            .pricing-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
        }
        .pricing-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            border: 2px solid var(--border-color);
            transition: all var(--transition-base);
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .pricing-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .pricing-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            background: #fff;
            transform: scale(1.03);
            z-index: 2;
        }
        .pricing-card.featured:hover {
            transform: scale(1.03) translateY(-4px);
        }
        @media (max-width: 640px) {
            .pricing-card.featured {
                transform: scale(1);
            }
            .pricing-card.featured:hover {
                transform: translateY(-4px);
            }
        }
        .pricing-card .pricing-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 5px 16px;
            border-radius: 50px;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .pricing-card h3 {
            text-align: center;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .pricing-card .price {
            text-align: center;
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 4px;
            font-family: var(--font-heading);
        }
        .pricing-card .price small {
            font-size: 1rem;
            font-weight: 400;
            color: var(--text-muted);
        }
        .pricing-card .price-period {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 20px;
        }
        .pricing-card ul {
            flex: 1;
            margin-bottom: 20px;
            padding: 0;
        }
        .pricing-card ul li {
            padding: 7px 0;
            padding-left: 22px;
            position: relative;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
        }
        .pricing-card ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }
        .pricing-card ul li.disabled {
            color: var(--text-light);
        }
        .pricing-card ul li.disabled::before {
            content: '—';
            color: var(--text-light);
        }
        .pricing-card .btn-choose {
            width: 100%;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
        }
        .pricing-card .btn-choose:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-primary);
        }
        .pricing-card.featured .btn-choose {
            background: var(--secondary);
        }
        .pricing-card.featured .btn-choose:hover {
            background: var(--secondary-dark);
        }

        /* ========== 保障条 ========== */
        .guarantee-section {
            background: var(--secondary);
            padding: 40px 0;
        }
        .guarantee-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 36px;
            color: #fff;
        }
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            font-size: 0.95rem;
        }
        .guarantee-item i {
            font-size: 1.4rem;
            color: var(--accent);
        }

        /* ========== 资讯区 ========== */
        .news-section {
            background: var(--bg-white);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
        }
        @media (max-width: 900px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
        }
        .news-list .news-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .news-list .news-item:hover {
            background: var(--bg-body);
            margin: 0 -12px;
            padding: 18px 12px;
            border-radius: var(--radius-sm);
        }
        .news-date {
            flex-shrink: 0;
            width: 60px;
            text-align: center;
            background: var(--bg-section);
            border-radius: var(--radius-sm);
            padding: 8px 4px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--primary);
            line-height: 1.3;
        }
        .news-date span {
            display: block;
            font-size: 1.2rem;
        }
        .news-content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
            transition: color var(--transition-fast);
        }
        .news-item:hover .news-content h4 {
            color: var(--primary);
        }
        .news-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }
        .news-content .btn-read-more {
            display: inline-block;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            margin-top: 6px;
            transition: all var(--transition-fast);
        }
        .news-content .btn-read-more:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        .news-sidebar {
            background: var(--bg-section);
            border-radius: var(--radius-lg);
            padding: 24px;
            align-self: flex-start;
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }
        .news-sidebar h4 {
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1.1rem;
        }
        .news-sidebar .hot-item {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .news-sidebar .hot-item:hover {
            color: var(--primary);
        }
        .news-sidebar .hot-item .hot-rank {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            text-align: center;
            line-height: 26px;
            font-weight: 700;
            font-size: 0.8rem;
            flex-shrink: 0;
        }
        .news-sidebar .hot-item:nth-child(2) .hot-rank {
            background: var(--accent);
        }
        .news-sidebar .hot-item:nth-child(3) .hot-rank {
            background: var(--secondary);
        }

        /* ========== 限时入口 ========== */
        .countdown-section {
            background: linear-gradient(135deg, #e63946 0%, #c1121f 40%, #8b0000 100%);
            padding: 48px 0;
            position: relative;
            overflow: hidden;
        }
        .countdown-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.2;
            mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.6) 0%, transparent 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.6) 0%, transparent 100%);
        }
        .countdown-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            color: #fff;
        }
        .countdown-text h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 6px;
        }
        .countdown-text p {
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            font-size: 1rem;
        }
        .countdown-timer {
            display: flex;
            gap: 14px;
            align-items: center;
        }
        .countdown-block {
            background: rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            text-align: center;
            min-width: 68px;
            backdrop-filter: blur(4px);
        }
        .countdown-block .num {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1;
            display: block;
        }
        .countdown-block .label {
            font-size: 0.75rem;
            opacity: 0.8;
            margin-top: 4px;
        }
        .countdown-cta .btn-countdown {
            background: #fff;
            color: var(--primary);
            border: none;
            padding: 14px 30px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
        }
        .countdown-cta .btn-countdown:hover {
            background: #fff;
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.35);
        }

        /* ========== 相关推荐 ========== */
        .recommend-section {
            background: var(--bg-white);
        }
        .recommend-scroll {
            display: flex;
            gap: 18px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .recommend-scroll::-webkit-scrollbar {
            height: 5px;
        }
        .recommend-scroll::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 10px;
        }
        .rec-card {
            flex: 0 0 260px;
            scroll-snap-align: start;
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1px solid transparent;
        }
        .rec-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .rec-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        .rec-card .rec-body {
            padding: 16px;
        }
        .rec-card .rec-body h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .rec-card .rec-body p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.4;
        }
        .rec-card .rec-body .rec-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.07);
            padding: 3px 10px;
            border-radius: 50px;
            margin-top: 8px;
        }

        /* ========== 里程碑 ========== */
        .milestone-section {
            background: var(--bg-section);
        }
        .milestone-timeline {
            position: relative;
            padding: 20px 0;
        }
        .milestone-timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border-color);
            border-radius: 3px;
            transform: translateX(-50%);
        }
        @media (max-width: 768px) {
            .milestone-timeline::before {
                left: 24px;
            }
        }
        .milestone-item {
            display: flex;
            align-items: flex-start;
            gap: 28px;
            margin-bottom: 36px;
            position: relative;
        }
        .milestone-item:nth-child(even) {
            flex-direction: row-reverse;
        }
        @media (max-width: 768px) {
            .milestone-item,
            .milestone-item:nth-child(even) {
                flex-direction: row;
                gap: 16px;
            }
        }
        .milestone-dot {
            flex-shrink: 0;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: var(--shadow-sm);
            margin-top: 4px;
            position: relative;
            z-index: 2;
        }
        @media (max-width: 768px) {
            .milestone-dot {
                margin-left: 15px;
            }
        }
        .milestone-content {
            flex: 1;
            max-width: 440px;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .milestone-item:nth-child(even) .milestone-content {
            text-align: right;
        }
        @media (max-width: 768px) {
            .milestone-item:nth-child(even) .milestone-content {
                text-align: left;
            }
            .milestone-content {
                max-width: 100%;
            }
        }
        .milestone-content:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .milestone-content .ms-year {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
            margin-bottom: 4px;
        }
        .milestone-content h4 {
            font-weight: 700;
            margin-bottom: 4px;
        }
        .milestone-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro-section {
            background: var(--bg-white);
        }
        .brand-intro-card {
            background: var(--bg-section);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            display: flex;
            gap: 32px;
            align-items: center;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .brand-intro-card {
                flex-direction: column;
                padding: 28px 20px;
            }
        }
        .brand-intro-card .brand-icon-large {
            flex-shrink: 0;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.6rem;
            color: #fff;
            box-shadow: var(--shadow-primary);
        }
        .brand-intro-card .brand-text {
            flex: 1;
            min-width: 0;
        }
        .brand-intro-card .brand-text h3 {
            font-weight: 700;
            margin-bottom: 8px;
        }
        .brand-intro-card .brand-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* ========== 会员权益对比 ========== */
        .member-section {
            background: var(--bg-section);
        }
        .member-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: #fff;
        }
        .member-table {
            width: 100%;
            min-width: 700px;
            border-collapse: collapse;
        }
        .member-table th,
        .member-table td {
            padding: 16px 18px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
        }
        .member-table thead th {
            background: var(--secondary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            position: sticky;
            top: 0;
        }
        .member-table thead th:first-child {
            background: var(--secondary-dark);
            text-align: left;
            border-radius: var(--radius-lg) 0 0 0;
        }
        .member-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }
        .member-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            background: #fafbfc;
        }
        .member-table tbody tr:hover td {
            background: rgba(230, 57, 70, 0.03);
        }
        .member-table .icon-check {
            color: #28a745;
            font-weight: 700;
        }
        .member-table .icon-dash {
            color: #ccc;
        }
        .member-table .highlight-col {
            background: rgba(230, 57, 70, 0.04) !important;
        }
        .member-cta-row {
            text-align: center;
            padding: 24px 0 0;
        }

        /* ========== 数据指标 ========== */
        .stats-section {
            background: var(--bg-white);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }
        .stat-card {
            background: var(--bg-section);
            border-radius: var(--radius-lg);
            padding: 28px 16px;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-card .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-heading);
            line-height: 1;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ========== 用户评价 ========== */
        .testimonial-section {
            background: var(--bg-section);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        @media (max-width: 900px) {
            .testimonial-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 560px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border-left: 4px solid transparent;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            border-left-color: var(--primary);
            transform: translateY(-3px);
        }
        .testimonial-card .t-avatar {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .testimonial-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .testimonial-card .t-name {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-primary);
        }
        .testimonial-card .t-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            color: var(--primary);
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 10px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(160deg, #1d3557 0%, #0f1f35 100%);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.12);
            pointer-events: none;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            position: relative;
            z-index: 1;
            margin-bottom: 24px;
            font-size: 1rem;
        }
        .cta-section .btn-primary-custom {
            position: relative;
            z-index: 1;
            font-size: 1.1rem;
            padding: 15px 36px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #111827;
            color: #ccc;
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 14px;
            font-size: 1rem;
        }
        .footer-col ul li {
            padding: 4px 0;
        }
        .footer-col ul li a {
            color: #999;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: #888;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            align-items: center;
        }
        .footer-bottom a {
            color: #aaa;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 8px;
            display: inline-block;
        }

        /* ========== UTILS ========== */
        .text-primary-custom {
            color: var(--primary) !important;
        }
        .bg-primary-custom {
            background: var(--primary) !important;
        }
        .text-accent {
            color: var(--accent) !important;
        }
        .fw-800 {
            font-weight: 800 !important;
        }
        .gap-3 {
            gap: 1rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.7rem;
            }
            .hero-text h1 {
                font-size: 1.6rem;
            }
            .pricing-card {
                padding: 20px 16px;
            }
            .countdown-timer {
                gap: 8px;
            }
            .countdown-block {
                padding: 10px 12px;
                min-width: 50px;
            }
            .countdown-block .num {
                font-size: 1.4rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-dark: #0f1f35;
            --accent: #f4a261;
            --accent-dark: #e07b2c;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #6c757d;
            --text-light: #adb5bd;
            --text-white: #ffffff;
            --border-color: #e0e4e8;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 56px rgba(0, 0, 0, 0.18);
            --shadow-primary: 0 8px 28px rgba(230, 57, 70, 0.30);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.40s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --nav-height: 72px;
            --container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }

        .nav-left {
            justify-content: flex-end;
        }

        .nav-right {
            justify-content: flex-start;
        }

        .nav-logo-wrap {
            flex-shrink: 0;
            text-align: center;
            padding: 0 12px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            color: #fff;
            text-align: center;
            line-height: 34px;
            font-size: 1rem;
            margin-right: 6px;
            vertical-align: middle;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }

        .nav-link-item:hover,
        .nav-link-item.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }

        .nav-link-item.active {
            font-weight: 600;
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            z-index: 1060;
        }

        .mobile-menu-toggle:hover {
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1045;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .mobile-nav-overlay.show {
            display: block;
            opacity: 1;
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            right: 0;
            width: 280px;
            max-width: 85vw;
            height: calc(100vh - var(--nav-height));
            background: var(--bg-white);
            z-index: 1048;
            padding: 20px 16px;
            overflow-y: auto;
            box-shadow: var(--shadow-xl);
            transform: translateX(100%);
            transition: transform var(--transition-base);
        }

        .mobile-nav-panel.show {
            display: block;
            transform: translateX(0);
        }

        .mobile-nav-panel .nav-link-item {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            margin-bottom: 4px;
            text-align: left;
            width: 100%;
        }

        .mobile-nav-panel .nav-link-item.active::after {
            display: none;
        }

        .mobile-nav-panel .nav-link-item.active {
            background: rgba(230, 57, 70, 0.08);
            border-left: 3px solid var(--primary);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.82) 0%, rgba(29, 53, 87, 0.78) 50%, rgba(26, 26, 46, 0.85) 100%);
            z-index: 1;
        }

        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 24px;
            justify-content: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.13);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            padding: 10px 20px;
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .hero-badge i {
            color: var(--accent);
            font-size: 1rem;
        }

        .hero-badge .badge-count {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary-light);
            margin-right: 2px;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            text-align: center;
            margin-bottom: 16px;
            line-height: 1.25;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
        }

        .hero-title .highlight {
            color: var(--primary-light);
            position: relative;
            display: inline-block;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            text-align: center;
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .hero-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            text-decoration: none;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(230, 57, 70, 0.40);
            color: #fff;
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
        }

        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        /* ========== SECTION COMMON ========== */
        .section-padding {
            padding: 80px 0;
        }

        .section-padding-sm {
            padding: 50px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-label {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== STATS BOARD ========== */
        .stats-board {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 36px 28px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -60px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            text-align: center;
            padding: 16px 10px;
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
            background: var(--bg-body);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            background: #fff;
        }

        .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1;
        }

        .stat-number .unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
            position: relative;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .service-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

        .service-card-body {
            padding: 20px 18px;
        }

        .service-card-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
        }

        .service-card-title {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .service-card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .service-card .card-hover-icon {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.5);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            opacity: 0;
            transition: all var(--transition-base);
            pointer-events: none;
        }

        .service-card:hover .card-hover-icon {
            opacity: 1;
            top: 20px;
        }

        /* ========== VIDEO HIGHLIGHTS ========== */
        .video-highlight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .video-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1px solid var(--border-light);
        }

        .video-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .video-card-thumb {
            position: relative;
            width: 100%;
            height: 220px;
            overflow: hidden;
        }

        .video-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .video-card:hover .video-card-thumb img {
            transform: scale(1.06);
        }

        .video-play-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.25);
            transition: background var(--transition-base);
        }

        .video-card:hover .video-play-overlay {
            background: rgba(0, 0, 0, 0.45);
        }

        .video-play-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.9);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
        }

        .video-card:hover .video-play-icon {
            background: #fff;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
        }

        .video-duration {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.75);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            z-index: 2;
        }

        .video-card-body {
            padding: 16px;
        }

        .video-card-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .video-card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* ========== FEATURE COMPARISON ========== */
        .feature-compare-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .feature-compare-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .feature-compare-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .feature-compare-card.highlight-card {
            border: 2px solid var(--primary);
            background: linear-gradient(180deg, rgba(230, 57, 70, 0.03) 0%, #fff 30%);
            position: relative;
        }

        .feature-compare-card.highlight-card::before {
            content: '推荐';
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 50px;
            z-index: 2;
        }

        .feature-compare-title {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-list li {
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.5;
        }

        .feature-list li i {
            color: var(--primary);
            font-size: 1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .feature-list li i.fa-circle-check {
            color: #28a745;
        }

        /* ========== CATEGORY GRID ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 24px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
            color: var(--primary);
        }

        .category-card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 10px;
            transition: all var(--transition-base);
        }

        .category-card:hover .category-card-icon {
            background: var(--primary);
            color: #fff;
        }

        .category-card-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: rgba(230, 57, 70, 0.2);
            position: absolute;
            top: 16px;
            right: 20px;
        }

        .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .testimonial-role {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            transition: transform var(--transition-base);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 50%, #1a1a2e 100%);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.12);
            z-index: 0;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(244, 162, 97, 0.1);
            z-index: 0;
        }

        .cta-section>* {
            position: relative;
            z-index: 1;
        }

        .cta-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 1rem;
            outline: none;
            transition: all var(--transition-base);
        }

        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-input:focus {
            border-color: var(--primary-light);
            background: rgba(255, 255, 255, 0.16);
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.15);
        }

        .btn-cta-submit {
            padding: 14px 32px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            border: none;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            white-space: nowrap;
        }

        .btn-cta-submit:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.40);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #ccc;
            padding: 50px 0 24px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #999;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
        }

        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-light);
            display: inline-block;
            margin-bottom: 6px;
        }

        .footer-logo:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            font-size: 0.8rem;
            color: #888;
            align-items: center;
            justify-content: center;
        }

        .footer-bottom a {
            color: #999;
            font-size: 0.8rem;
        }

        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .video-highlight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-board {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-compare-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-title {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-inner {
                justify-content: space-between;
                gap: 10px;
            }
            .nav-logo-wrap {
                flex-shrink: 0;
                padding: 0;
                text-align: left;
            }
            .nav-left {
                display: none;
            }
            .nav-right {
                display: none;
            }
            .service-grid {
                grid-template-columns: 1fr 1fr;
            }
            .video-highlight-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-board {
                grid-template-columns: 1fr 1fr;
                margin-top: -40px;
                padding: 24px 16px;
                gap: 12px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-padding {
                padding: 50px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-section {
                padding: 36px 20px;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .feature-compare-grid {
                grid-template-columns: 1fr;
            }
            .hero-section {
                min-height: 400px;
            }
            .hero-badge-row {
                gap: 8px;
            }
            .hero-badge {
                padding: 8px 14px;
                font-size: 0.78rem;
            }
            .hero-badge .badge-count {
                font-size: 1rem;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stats-board {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
                padding: 16px 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-card {
                padding: 10px 6px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-section {
                min-height: 340px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .container-custom {
                padding: 0 14px;
            }
            .hero-badge-row {
                gap: 6px;
            }
            .hero-badge {
                padding: 6px 10px;
                font-size: 0.7rem;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-input {
                width: 100%;
            }
            .btn-cta-submit {
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-dark: #0f1f35;
            --accent: #f4a261;
            --accent-dark: #e07b2c;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #6c757d;
            --text-light: #adb5bd;
            --text-white: #ffffff;
            --border-color: #e0e4e8;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 56px rgba(0, 0, 0, 0.18);
            --shadow-primary: 0 8px 28px rgba(230, 57, 70, 0.30);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.40s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --nav-height: 72px;
            --container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }

        .nav-left {
            justify-content: flex-end;
        }

        .nav-right {
            justify-content: flex-start;
        }

        .nav-logo-wrap {
            flex-shrink: 0;
            text-align: center;
            padding: 0 12px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            color: #fff;
            text-align: center;
            line-height: 34px;
            font-size: 1rem;
            margin-right: 6px;
            vertical-align: middle;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }

        .nav-link-item:hover,
        .nav-link-item.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }

        .nav-link-item.active {
            font-weight: 600;
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            background: var(--primary);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.40);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline-custom:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-primary);
            transform: translateY(-2px);
        }

        .btn-outline-custom:active {
            transform: translateY(0);
        }

        .btn-lg-custom {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        /* ========== SECTION TITLES ========== */
        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            font-weight: 400;
            line-height: 1.7;
            max-width: 680px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header .section-divider {
            display: inline-block;
            width: 48px;
            height: 4px;
            border-radius: 4px;
            background: var(--primary);
            margin-top: 12px;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 40%, #1a3a5c 100%);
            padding: 80px 0 90px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(244, 162, 97, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }

        .hero-text {
            flex: 1;
            min-width: 300px;
        }

        .hero-text .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(230, 57, 70, 0.2);
            color: #ff8a8a;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 18px;
            letter-spacing: 0.04em;
        }

        .hero-text h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .hero-text h1 .highlight {
            color: var(--primary-light);
            position: relative;
        }

        .hero-text .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-form-card {
            flex: 0 0 420px;
            min-width: 320px;
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            box-shadow: var(--shadow-xl);
            position: relative;
            z-index: 2;
        }

        .hero-form-card .form-title {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .hero-form-card .form-subtitle {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .hero-form-card .form-input {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: 1rem;
            transition: all var(--transition-fast);
            background: var(--bg-body);
            color: var(--text-primary);
            outline: none;
        }

        .hero-form-card .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.08);
            background: #fff;
        }

        .hero-form-card .form-group {
            margin-bottom: 14px;
        }

        .hero-form-card .form-trust {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 14px;
            font-size: 0.82rem;
            color: var(--text-muted);
            justify-content: center;
        }

        .hero-form-card .form-trust i {
            color: #28a745;
        }

        /* ========== STATS DASHBOARD ========== */
        .stats-dashboard {
            padding: 60px 0;
            background: var(--bg-white);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition-base);
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .stat-card:hover {
            border-color: var(--border-color);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .stat-card .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 14px;
            transition: all var(--transition-base);
        }

        .stat-card:hover .stat-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.08);
        }

        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .stat-card .stat-sub {
            font-size: 0.78rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            padding: 70px 0;
            background: var(--bg-section);
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .matrix-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .matrix-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: transparent;
        }

        .matrix-card .matrix-icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.12) 0%, rgba(230, 57, 70, 0.04) 100%);
            color: var(--primary);
            font-size: 1.4rem;
            margin-bottom: 18px;
            transition: all var(--transition-base);
        }

        .matrix-card:hover .matrix-icon-wrap {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .matrix-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .matrix-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
            flex-grow: 1;
            margin-bottom: 14px;
        }

        .matrix-card .matrix-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .matrix-card .matrix-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.78rem;
            font-weight: 500;
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
        }

        /* ========== COMPARISON ========== */
        .comparison-section {
            padding: 70px 0;
            background: var(--bg-white);
        }

        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: #fff;
            border: 1px solid var(--border-color);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .comparison-table thead th {
            background: var(--secondary);
            color: #fff;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            text-align: center;
            letter-spacing: 0.03em;
        }

        .comparison-table thead th:first-child {
            border-radius: var(--radius-lg) 0 0 0;
            text-align: left;
        }

        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .comparison-table thead th.highlight-col {
            background: var(--primary);
            position: relative;
        }

        .comparison-table thead th.highlight-col::after {
            content: '推荐';
            position: absolute;
            top: -10px;
            right: 10px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            padding: 2px 10px;
            border-radius: 10px;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .comparison-table tbody td {
            padding: 14px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .comparison-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table .check-icon {
            color: #28a745;
            font-size: 1.1rem;
        }

        .comparison-table .cross-icon {
            color: #dc3545;
            font-size: 1.1rem;
        }

        .comparison-table .partial-icon {
            color: var(--accent);
            font-size: 1.1rem;
        }

        .comparison-table tbody tr:hover {
            background: rgba(230, 57, 70, 0.03);
        }

        /* ========== FEATURES DEEP ========== */
        .features-deep {
            padding: 70px 0;
            background: var(--bg-section);
        }

        .feature-row {
            display: flex;
            align-items: center;
            gap: 50px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .feature-row:last-child {
            margin-bottom: 0;
        }

        .feature-row.reverse {
            flex-direction: row-reverse;
        }

        .feature-img {
            flex: 0 0 420px;
            min-width: 280px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            transition: all var(--transition-base);
        }

        .feature-img:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-4px);
        }

        .feature-img img {
            width: 100%;
            height: auto;
            display: block;
        }

        .feature-text {
            flex: 1;
            min-width: 280px;
        }

        .feature-text .feature-label {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            border-radius: 16px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .feature-text h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .feature-text p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .feature-text .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-text .feature-list li {
            padding: 6px 0;
            font-size: 0.92rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .feature-text .feature-list li i {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ========== SCENARIOS ========== */
        .scenarios-section {
            padding: 70px 0;
            background: var(--bg-white);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: all var(--transition-base);
            border: 1px solid transparent;
            cursor: default;
        }

        .scenario-card:hover {
            border-color: var(--border-color);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            background: #fff;
        }

        .scenario-card .scenario-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
        }

        .scenario-card h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .scenario-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== PROCESS ========== */
        .process-section {
            padding: 70px 0;
            background: linear-gradient(180deg, var(--bg-section) 0%, #fff 100%);
        }

        .process-steps {
            display: flex;
            gap: 28px;
            justify-content: center;
            flex-wrap: wrap;
            counter-reset: step;
        }

        .process-step {
            flex: 1;
            min-width: 200px;
            max-width: 260px;
            text-align: center;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 20px;
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
        }

        .process-step:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: transparent;
        }

        .process-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 16px;
            box-shadow: var(--shadow-primary);
        }

        .process-step h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.55;
            margin: 0;
        }

        .process-connector {
            display: flex;
            align-items: center;
            color: var(--primary);
            font-size: 1.4rem;
            flex-shrink: 0;
            align-self: center;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 70px 0;
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 20px 0;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-item .faq-question {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color var(--transition-fast);
        }

        .faq-item:hover .faq-question {
            color: var(--primary);
        }

        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 50%, #1a3a5c 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 30px;
            line-height: 1.7;
        }

        .cta-form-inline {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form-inline input {
            flex: 1;
            min-width: 220px;
            padding: 15px 20px;
            border-radius: var(--radius-md);
            border: 2px solid transparent;
            font-size: 1rem;
            outline: none;
            background: #fff;
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }

        .cta-form-inline input:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 6px rgba(230, 57, 70, 0.12);
        }

        .cta-form-inline .btn-primary-custom {
            white-space: nowrap;
            padding: 15px 32px;
            font-size: 1rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #ccc;
            padding: 50px 0 30px;
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-light);
            display: inline-block;
            margin-bottom: 6px;
        }

        .footer-logo:hover {
            color: #fff;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 6px;
        }

        .footer-col ul li a {
            color: #aaa;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: #888;
        }

        .footer-bottom a {
            color: #aaa;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-content {
                flex-direction: column;
                gap: 30px;
            }
            .hero-form-card {
                flex: 0 0 auto;
                width: 100%;
                max-width: 480px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .feature-row {
                flex-direction: column;
                gap: 30px;
            }
            .feature-row.reverse {
                flex-direction: column;
            }
            .feature-img {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .nav-logo-wrap {
                flex-shrink: 0;
                padding: 0;
            }
            .mobile-nav-open .nav-left,
            .mobile-nav-open .nav-right {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                gap: 4px;
                z-index: 1040;
            }
            .mobile-nav-open .nav-left {
                border-bottom: none;
                padding-bottom: 0;
            }
            .mobile-nav-open .nav-right {
                top: calc(var(--nav-height) + 180px);
                padding-top: 0;
                border-top: 1px solid var(--border-light);
            }
            .nav-link-item {
                width: 100%;
                padding: 10px 14px;
                border-radius: var(--radius-sm);
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .hero-section {
                padding: 50px 0 60px;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-form-card {
                padding: 24px 20px;
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            .process-connector {
                transform: rotate(90deg);
            }
            .process-step {
                max-width: 100%;
            }
            .cta-inner h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .comparison-table-wrap {
                border-radius: var(--radius-md);
            }
            .section-title {
                font-size: 1.5rem;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-form-card {
                min-width: auto;
            }
            .cta-form-inline {
                flex-direction: column;
            }
            .cta-form-inline input {
                min-width: auto;
            }
            .stat-card .stat-number {
                font-size: 1.7rem;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-dark: #0f1f35;
            --accent: #f4a261;
            --accent-dark: #e07b2c;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #6c757d;
            --text-light: #adb5bd;
            --text-white: #ffffff;
            --border-color: #e0e4e8;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 56px rgba(0, 0, 0, 0.18);
            --shadow-primary: 0 8px 28px rgba(230, 57, 70, 0.30);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.40s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --nav-height: 72px;
            --container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }

        .nav-left {
            justify-content: flex-end;
        }

        .nav-right {
            justify-content: flex-start;
        }

        .nav-logo-wrap {
            flex-shrink: 0;
            text-align: center;
            padding: 0 12px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            color: #fff;
            text-align: center;
            line-height: 34px;
            font-size: 1rem;
            margin-right: 6px;
            vertical-align: middle;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }

        .nav-link-item:hover,
        .nav-link-item.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }

        .nav-link-item.active {
            font-weight: 600;
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
            color: var(--primary);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            border: none;
            cursor: pointer;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.40);
            transform: translateY(-1px);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            padding: 60px 0 80px;
            background: var(--bg-white);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            transform: translateY(-18px);
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .hero-title .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 8px;
            background: rgba(230, 57, 70, 0.15);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 480px;
        }

        .hero-kpi-row {
            display: flex;
            gap: 28px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .hero-kpi-item {
            text-align: left;
        }

        .hero-kpi-num {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }

        .hero-kpi-num span {
            font-size: 1.1rem;
            font-weight: 600;
        }

        .hero-kpi-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 12px 36px rgba(230, 57, 70, 0.42);
            transform: translateY(-2px);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            color: var(--primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline-custom:hover {
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .hero-image-wrap {
            position: relative;
            transform: translateY(18px);
        }

        .hero-image-wrap .decor-block {
            position: absolute;
            top: -20px;
            right: -20px;
            width: 100%;
            height: 100%;
            background: var(--primary);
            border-radius: var(--radius-xl);
            z-index: 0;
            opacity: 0.08;
            transform: rotate(-3deg);
        }

        .hero-image-wrap .hero-img {
            position: relative;
            z-index: 1;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            transition: transform var(--transition-slow);
        }

        .hero-image-wrap .hero-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16 / 10;
            border-radius: var(--radius-lg);
        }

        .hero-image-wrap:hover .hero-img {
            transform: translateY(-4px);
        }

        /* ========== SECTION COMMON ========== */
        .section-padding {
            padding: 70px 0;
        }

        .section-padding-lg {
            padding: 90px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(230, 57, 70, 0.07);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        /* ========== METRICS DASHBOARD ========== */
        .metrics-section {
            background: var(--bg-dark);
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .metrics-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.06;
            pointer-events: none;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
            z-index: 1;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition-base);
            backdrop-filter: blur(4px);
        }

        .metric-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.16);
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        }

        .metric-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        .metric-value {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .metric-value .suffix {
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-light);
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .metric-trend {
            display: inline-block;
            font-size: 0.78rem;
            color: #4ade80;
            margin-top: 6px;
            font-weight: 600;
        }

        .metric-trend i {
            margin-right: 3px;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            background: var(--bg-white);
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .matrix-card {
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .matrix-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--primary);
            transition: height var(--transition-slow);
            border-radius: 0 0 4px 0;
        }

        .matrix-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
            background: #fff;
        }

        .matrix-card:hover::before {
            height: 60px;
        }

        .matrix-card .matrix-icon {
            width: 50px;
            height: 50px;
            background: rgba(230, 57, 70, 0.08);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }

        .matrix-card:hover .matrix-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .matrix-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .matrix-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== COVERAGE SECTION ========== */
        .coverage-section {
            background: var(--bg-section);
        }

        .coverage-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .coverage-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            cursor: default;
        }

        .coverage-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary);
            border-color: rgba(230, 57, 70, 0.25);
        }

        .coverage-item .coverage-icon {
            font-size: 2.2rem;
            margin-bottom: 8px;
            display: block;
        }

        .coverage-item h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .coverage-item span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== HIGHLIGHTS SECTION ========== */
        .highlights-section {
            background: var(--bg-white);
        }

        .highlight-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .highlight-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .highlight-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .highlight-list li {
            display: flex;
            gap: 14px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
        }

        .highlight-list li:last-child {
            border-bottom: none;
        }

        .highlight-list .hl-icon {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            background: rgba(230, 57, 70, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.1rem;
            transition: all var(--transition-base);
        }

        .highlight-list li:hover .hl-icon {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .highlight-list .hl-content h4 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .highlight-list .hl-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== COMPARISON SECTION ========== */
        .comparison-section {
            background: var(--bg-section);
        }

        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: #fff;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .comparison-table thead th {
            background: var(--secondary);
            color: #fff;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            text-align: center;
            border: none;
        }

        .comparison-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius-lg) 0 0 0;
        }

        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .comparison-table thead th.highlight-col {
            background: var(--primary);
            position: relative;
        }

        .comparison-table thead th.highlight-col::after {
            content: '推荐';
            position: absolute;
            top: -10px;
            right: 10px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            padding: 3px 10px;
            border-radius: 50px;
            font-weight: 700;
            letter-spacing: 0.04em;
        }

        .comparison-table tbody td {
            padding: 14px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
            vertical-align: middle;
        }

        .comparison-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
        }

        .comparison-table tbody tr:hover {
            background: rgba(230, 57, 70, 0.02);
        }

        .comparison-table .check-icon {
            color: #22c55e;
            font-size: 1.1rem;
        }

        .comparison-table .cross-icon {
            color: #ef4444;
            font-size: 1.1rem;
        }

        .comparison-table .partial-icon {
            color: #f59e0b;
            font-size: 1.1rem;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-section {
            background: var(--bg-white);
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
        }

        .testimonial-card::before {
            content: '\201C';
            font-family: var(--font-heading);
            font-size: 4rem;
            color: rgba(230, 57, 70, 0.12);
            position: absolute;
            top: 10px;
            left: 18px;
            line-height: 1;
            pointer-events: none;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
            background: #fff;
        }

        .testimonial-card .stars {
            color: #f4a261;
            font-size: 0.9rem;
            margin-bottom: 10px;
        }

        .testimonial-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .testimonial-card .user-info {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .user-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
        }

        .testimonial-card .user-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .testimonial-card .user-tag {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            background: var(--bg-section);
        }

        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-body);
        }

        .faq-question:hover {
            background: rgba(230, 57, 70, 0.02);
        }

        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
            font-size: 0.8rem;
            color: var(--primary);
        }

        .faq-item.open .faq-question .faq-toggle {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--secondary);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 0.95rem;
            outline: none;
            transition: all var(--transition-base);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus {
            border-color: var(--primary-light);
            background: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 6px rgba(230, 57, 70, 0.12);
        }

        .cta-form .btn-submit {
            padding: 14px 30px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            white-space: nowrap;
        }

        .cta-form .btn-submit:hover {
            background: var(--primary-dark);
            box-shadow: 0 14px 36px rgba(230, 57, 70, 0.45);
            transform: translateY(-2px);
        }

        .cta-trust {
            margin-top: 16px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        .cta-trust i {
            color: #4ade80;
        }

        /* ========== TRUST SECTION ========== */
        .trust-section {
            background: var(--bg-white);
            padding: 50px 0;
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .trust-item {
            padding: 20px;
        }

        .trust-item .trust-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .trust-item h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .trust-item p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #ccc;
            padding: 50px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #999;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
        }

        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            display: inline-block;
            margin-bottom: 6px;
        }

        .footer-logo:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: #777;
        }

        .footer-bottom a {
            color: #999;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-content {
                transform: translateY(0);
                text-align: center;
            }
            .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-kpi-row {
                justify-content: center;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-image-wrap {
                transform: translateY(0);
                max-width: 550px;
                margin: 0 auto;
            }
            .hero-image-wrap .decor-block {
                display: none;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .highlight-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-inner {
                flex-wrap: nowrap;
                gap: 10px;
            }
            .nav-left,
            .nav-right {
                gap: 2px;
            }
            .nav-link-item {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
            .nav-logo {
                font-size: 1.35rem;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
                line-height: 28px;
                font-size: 0.85rem;
                margin-right: 4px;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .nav-logo-wrap {
                padding: 0;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-inner.mobile-open .nav-left,
            .nav-inner.mobile-open .nav-right {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                gap: 2px;
                z-index: 1040;
                align-items: stretch;
            }
            .nav-inner.mobile-open .nav-left {
                order: 2;
            }
            .nav-inner.mobile-open .nav-right {
                order: 3;
            }
            .nav-inner.mobile-open .nav-link-item {
                display: block;
                padding: 10px 14px;
                text-align: center;
                border-radius: var(--radius-sm);
            }
            .nav-inner.mobile-open .nav-cta-btn {
                display: block;
                text-align: center;
                margin-top: 6px;
                justify-content: center;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-kpi-num {
                font-size: 1.5rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-value {
                font-size: 2rem;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .cta-inner h2 {
                font-size: 1.7rem;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .comparison-table-wrap {
                border-radius: var(--radius-md);
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 12px;
                font-size: 0.78rem;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-padding-lg {
                padding: 50px 0;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-kpi-row {
                gap: 16px;
            }
            .hero-kpi-num {
                font-size: 1.3rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .coverage-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .trust-grid {
                grid-template-columns: 1fr;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .container-custom {
                padding: 0 14px;
            }
            .hero-section {
                padding: 30px 0 40px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .cta-inner h2 {
                font-size: 1.4rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-dark: #0f1f35;
            --accent: #f4a261;
            --accent-dark: #e07b2c;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #6c757d;
            --text-light: #adb5bd;
            --text-white: #ffffff;
            --border-color: #e0e4e8;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 56px rgba(0, 0, 0, 0.18);
            --shadow-primary: 0 8px 28px rgba(230, 57, 70, 0.30);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.40s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --nav-height: 72px;
            --container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }

        .nav-left {
            justify-content: flex-end;
        }

        .nav-right {
            justify-content: flex-start;
        }

        .nav-logo-wrap {
            flex-shrink: 0;
            text-align: center;
            padding: 0 12px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            color: #fff;
            text-align: center;
            line-height: 34px;
            font-size: 1rem;
            margin-right: 6px;
            vertical-align: middle;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }

        .nav-link-item:hover,
        .nav-link-item.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }

        .nav-link-item.active {
            font-weight: 600;
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ========== HERO - 白皮书获客 ========== */
        .hero-section {
            background: var(--bg-white);
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-cover-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            aspect-ratio: 3/4;
            max-width: 380px;
            margin: 0 auto;
        }

        .hero-cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-cover-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--primary);
            color: #fff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            box-shadow: var(--shadow-primary);
        }

        .hero-content h1 {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .hero-content h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-content .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .hero-toc {
            background: var(--bg-section);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 24px;
            border-left: 4px solid var(--primary);
        }

        .hero-toc h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .hero-toc ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }

        .hero-toc ul li {
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-toc ul li i {
            color: var(--primary);
            font-size: 0.7rem;
        }

        .hero-form-wrap {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .hero-form-wrap input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            outline: none;
            background: var(--bg-white);
        }

        .hero-form-wrap input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.08);
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.35);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline-custom:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== 指标看板 ========== */
        .metrics-section {
            padding: 56px 0;
            background: var(--bg-section);
        }

        .metrics-section .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .metrics-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .metrics-section .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 36px;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .metric-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .metric-card .metric-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.3rem;
            color: #fff;
        }

        .metric-card .metric-icon.red {
            background: var(--primary);
        }

        .metric-card .metric-icon.blue {
            background: var(--secondary);
        }

        .metric-card .metric-icon.orange {
            background: var(--accent);
        }

        .metric-card .metric-icon.green {
            background: #2a9d8f;
        }

        .metric-card .metric-value {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .metric-card .metric-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .metric-card .metric-change {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            margin-top: 8px;
        }

        .metric-card .metric-change.up {
            background: #e8f5e9;
            color: #2e7d32;
        }

        .metric-card .metric-change.down {
            background: #ffebee;
            color: #c62828;
        }

        /* ========== 服务矩阵 ========== */
        .services-section {
            padding: 60px 0;
            background: var(--bg-white);
        }

        .services-section .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .services-section .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .services-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            text-align: center;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .service-card .service-icon-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            color: #fff;
            background: var(--primary);
        }

        .service-card:nth-child(2) .service-icon-circle {
            background: var(--secondary);
        }

        .service-card:nth-child(3) .service-icon-circle {
            background: var(--accent);
        }

        .service-card:nth-child(4) .service-icon-circle {
            background: #2a9d8f;
        }

        .service-card:nth-child(5) .service-icon-circle {
            background: #6c5ce7;
        }

        .service-card:nth-child(6) .service-icon-circle {
            background: #e17055;
        }

        .service-card h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 球星卡片 ========== */
        .stars-section {
            padding: 60px 0;
            background: var(--bg-section);
        }

        .stars-section .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .stars-section .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .stars-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .stars-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .star-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
        }

        .star-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .star-card .star-img-wrap {
            position: relative;
            aspect-ratio: 1/1;
            overflow: hidden;
        }

        .star-card .star-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .star-card:hover .star-img-wrap img {
            transform: scale(1.06);
        }

        .star-card .star-rank {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--primary);
            color: #fff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            box-shadow: var(--shadow-primary);
        }

        .star-card .star-info {
            padding: 18px 16px;
        }

        .star-card .star-info h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .star-card .star-info .star-team {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .star-card .star-stats {
            display: flex;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .star-card .star-stats span {
            display: flex;
            align-items: center;
            gap: 3px;
        }

        .star-card .star-stats span strong {
            color: var(--primary);
            font-weight: 700;
        }

        /* ========== 结果对比 ========== */
        .comparison-section {
            padding: 60px 0;
            background: var(--bg-white);
        }

        .comparison-section .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .comparison-section .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .comparison-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .comparison-table thead th {
            background: var(--secondary);
            color: #fff;
            padding: 16px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: center;
            white-space: nowrap;
        }

        .comparison-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius-lg) 0 0 0;
        }

        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .comparison-table tbody td {
            padding: 14px 18px;
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            white-space: nowrap;
        }

        .comparison-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
        }

        .comparison-table tbody tr:hover {
            background: rgba(230, 57, 70, 0.03);
        }

        .comparison-table .highlight-cell {
            color: var(--primary);
            font-weight: 700;
        }

        /* ========== 深度内容区 ========== */
        .deep-content-section {
            padding: 60px 0;
            background: var(--bg-section);
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }

        .deep-content-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .deep-content-card:hover {
            box-shadow: var(--shadow-md);
        }

        .deep-content-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .deep-content-card h3 i {
            color: var(--primary);
            font-size: 1.1rem;
        }

        .deep-content-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .deep-content-card .deep-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .deep-content-card .deep-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .deep-content-card .deep-list li:last-child {
            border-bottom: none;
        }

        .deep-content-card .deep-list li i {
            color: var(--primary);
            margin-top: 3px;
            flex-shrink: 0;
        }

        .deep-content-card .deep-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 18px;
            aspect-ratio: 16/9;
        }

        .deep-content-card .deep-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== 品牌介绍 ========== */
        .brand-intro-section {
            padding: 56px 0;
            background: var(--bg-white);
        }

        .brand-intro-card {
            background: var(--bg-section);
            border-radius: var(--radius-xl);
            padding: 40px;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            border: 1px solid var(--border-light);
        }

        .brand-intro-card h3 {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .brand-intro-card p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-section);
        }

        .faq-section .section-header {
            text-align: center;
            margin-bottom: 36px;
        }

        .faq-section .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .faq-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .faq-accordion-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 64px 0;
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -40px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(244, 162, 97, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            max-width: 360px;
            padding: 14px 18px;
            border: 2px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            outline: none;
            transition: all var(--transition-fast);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.2);
        }

        .cta-form .btn-primary-custom {
            padding: 14px 32px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #111827;
            color: #ccc;
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 8px;
        }

        .footer-logo:hover {
            color: var(--primary-light);
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #999;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 18px;
            align-items: center;
            font-size: 0.8rem;
            color: #888;
        }

        .footer-bottom a {
            color: #aaa;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-cover-wrap {
                max-width: 280px;
                aspect-ratio: 3/4;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stars-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-inner {
                gap: 10px;
            }
            .nav-link-item {
                padding: 6px 10px;
                font-size: 0.85rem;
            }
            .nav-logo {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-inner.mobile-open .nav-left,
            .nav-inner.mobile-open .nav-right {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                z-index: 1040;
                gap: 4px;
            }
            .nav-inner.mobile-open .nav-left {
                border-bottom: 1px solid var(--border-light);
                padding-bottom: 12px;
            }
            .nav-inner.mobile-open .nav-right {
                padding-top: 12px;
            }
            .nav-inner.mobile-open .nav-link-item {
                width: 100%;
                justify-content: center;
                padding: 10px;
            }
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-cover-wrap {
                max-width: 220px;
            }
            .hero-toc ul {
                flex-direction: column;
                gap: 4px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-card {
                padding: 20px 14px;
            }
            .metric-card .metric-value {
                font-size: 1.6rem;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .stars-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .comparison-table-wrap {
                border-radius: var(--radius-md);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input {
                max-width: 100%;
                width: 100%;
            }
            .brand-intro-card {
                padding: 24px 20px;
            }
            .deep-content-card {
                padding: 20px;
            }
            .hero-form-wrap {
                flex-direction: column;
            }
            .hero-form-wrap input {
                min-width: auto;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.4rem;
            }
            .hero-cover-wrap {
                max-width: 180px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .stars-grid {
                grid-template-columns: 1fr;
            }
            .metrics-section h2,
            .services-section h2,
            .stars-section h2,
            .comparison-section h2,
            .faq-section h2 {
                font-size: 1.5rem;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .hero-toc {
                padding: 14px 16px;
            }
            .hero-section {
                padding: 36px 0;
            }
            .container-custom {
                padding: 0 14px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-dark: #0f1f35;
            --accent: #f4a261;
            --accent-dark: #e07b2c;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #6c757d;
            --text-light: #adb5bd;
            --text-white: #ffffff;
            --border-color: #e0e4e8;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 56px rgba(0, 0, 0, 0.18);
            --shadow-primary: 0 8px 28px rgba(230, 57, 70, 0.30);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.40s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --nav-height: 72px;
            --container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }

        .nav-left {
            justify-content: flex-end;
        }

        .nav-right {
            justify-content: flex-start;
        }

        .nav-logo-wrap {
            flex-shrink: 0;
            text-align: center;
            padding: 0 12px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            color: #fff;
            text-align: center;
            line-height: 34px;
            font-size: 1rem;
            margin-right: 6px;
            vertical-align: middle;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }

        .nav-link-item:hover,
        .nav-link-item.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }

        .nav-link-item.active {
            font-weight: 600;
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            z-index: 1060;
        }

        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-white);
            z-index: 1045;
            padding: 20px 24px;
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
            box-shadow: var(--shadow-lg);
        }

        .mobile-nav-panel.open {
            display: flex;
        }

        .mobile-nav-panel .nav-link-item {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
            text-align: center;
            border-bottom: 1px solid var(--border-light);
        }

        .mobile-nav-panel .nav-link-item.active::after {
            display: none;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            width: 100%;
            min-height: 580px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 17, 23, 0.82) 0%, rgba(29, 53, 87, 0.75) 50%, rgba(13, 17, 23, 0.88) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 40px 24px;
            max-width: 780px;
            margin: 0 auto;
        }

        .hero-play-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.18);
            border: 3px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            font-size: 2rem;
            cursor: pointer;
            transition: all var(--transition-base);
            margin-bottom: 24px;
            animation: pulse-ring 2.4s ease-in-out infinite;
            position: relative;
        }

        .hero-play-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            transform: scale(1.08);
            box-shadow: var(--shadow-primary);
            animation: none;
        }

        .hero-play-btn i {
            margin-left: 5px;
        }

        @keyframes pulse-ring {
            0% {
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.45);
            }
            50% {
                box-shadow: 0 0 0 28px rgba(255, 255, 255, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
            }
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
            line-height: 1.25;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-primary);
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.40);
            color: #fff;
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-accent-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-accent-custom:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(244, 162, 97, 0.35);
            color: #fff;
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-secondary-custom:hover {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(29, 53, 87, 0.35);
            color: #fff;
        }

        /* ========== SECTIONS ========== */
        .section-block {
            padding: 70px 0;
        }

        .section-block.bg-white {
            background: var(--bg-white);
        }

        .section-block.bg-section {
            background: var(--bg-section);
        }

        .section-block.bg-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--primary);
            margin-bottom: 10px;
            padding: 5px 14px;
            background: rgba(230, 57, 70, 0.08);
            border-radius: 20px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .bg-dark .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 32px;
            line-height: 1.65;
        }

        .bg-dark .section-desc {
            color: var(--text-light);
        }

        /* ========== STATS DASHBOARD ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .stat-card .stat-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 12px;
            display: block;
        }

        .stat-card .stat-value {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .stat-card .stat-trend {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            margin-top: 8px;
        }

        .stat-trend.up {
            background: #e8f5e9;
            color: #2e7d32;
        }

        .stat-trend.down {
            background: #fce4ec;
            color: #c62828;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 14px;
            height: 100%;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .service-card .service-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .service-icon-wrap.red {
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
        }

        .service-icon-wrap.blue {
            background: rgba(29, 53, 87, 0.1);
            color: var(--secondary);
        }

        .service-icon-wrap.amber {
            background: rgba(244, 162, 97, 0.15);
            color: var(--accent);
        }

        .service-card h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-primary);
            margin: 0;
        }

        .service-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
            flex-grow: 1;
        }

        .service-card .service-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
        }

        .service-card .service-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        /* ========== TEAM CARDS ========== */
        .team-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .team-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .team-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .team-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .team-card-body {
            padding: 18px 16px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .team-card-body .badge-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 14px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            width: fit-content;
        }

        .team-card-body h5 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            margin: 0;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .team-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
            flex-grow: 1;
        }

        .team-card-body .card-meta {
            font-size: 0.78rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: var(--bg-white);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .comparison-table thead th {
            background: var(--secondary);
            color: #fff;
            padding: 16px 18px;
            font-weight: 600;
            font-size: 0.95rem;
            text-align: center;
            white-space: nowrap;
        }

        .comparison-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius-lg) 0 0 0;
        }

        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .comparison-table tbody td {
            padding: 14px 18px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .comparison-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
        }

        .comparison-table tbody tr:hover {
            background: rgba(230, 57, 70, 0.03);
        }

        .comparison-table .highlight-cell {
            color: var(--primary);
            font-weight: 700;
        }

        .comparison-table .rank-badge {
            display: inline-block;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            line-height: 28px;
            text-align: center;
        }

        .comparison-table .rank-badge.silver {
            background: #8899aa;
        }

        .comparison-table .rank-badge.bronze {
            background: #c4956a;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .deep-content-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .deep-content-img img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform var(--transition-slow);
        }

        .deep-content-img:hover img {
            transform: scale(1.04);
        }

        .deep-content-text h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.7rem;
            color: var(--text-primary);
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .deep-content-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .deep-content-text .highlight-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .deep-content-text .highlight-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .deep-content-text .highlight-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 8px;
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
        }

        /* ========== RANKING LIST ========== */
        .ranking-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
        }

        .ranking-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: transparent;
        }

        .ranking-num {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            width: 44px;
            text-align: center;
            flex-shrink: 0;
        }

        .ranking-item:nth-child(1) .ranking-num {
            color: #f4a261;
            font-size: 2rem;
        }
        .ranking-item:nth-child(2) .ranking-num {
            color: #8899aa;
        }
        .ranking-item:nth-child(3) .ranking-num {
            color: #c4956a;
        }

        .ranking-info {
            flex-grow: 1;
            min-width: 0;
        }

        .ranking-info h5 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            margin: 0 0 2px;
            color: var(--text-primary);
        }

        .ranking-info span {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .ranking-stat {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            flex-shrink: 0;
            text-align: right;
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            background: var(--bg-white);
            padding: 18px 22px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(230, 57, 70, 0.04);
            color: var(--primary);
            box-shadow: none;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
            border-color: var(--primary);
        }

        .faq-accordion .accordion-body {
            padding: 18px 22px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            background: var(--bg-white);
        }

        /* ========== CTA FORM ========== */
        .cta-form-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-xl);
        }

        .cta-form-section h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.8rem;
            margin-bottom: 10px;
        }

        .cta-form-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            font-size: 1rem;
        }

        .cta-form-row {
            display: flex;
            gap: 10px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form-row input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            border: 2px solid transparent;
            font-size: 1rem;
            outline: none;
            transition: all var(--transition-fast);
            background: #fff;
            color: var(--text-primary);
        }

        .cta-form-row input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.2);
        }

        .cta-form-row .btn-primary-custom {
            flex-shrink: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #ccc;
            padding: 50px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 14px;
            font-family: var(--font-heading);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #bbb;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: inline-block;
            margin-bottom: 8px;
        }

        .footer-logo:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            font-size: 0.8rem;
            color: #999;
        }

        .footer-bottom a {
            color: #bbb;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-left,
            .nav-right {
                gap: 2px;
            }

            .nav-link-item {
                padding: 7px 10px;
                font-size: 0.85rem;
            }

            .nav-logo {
                font-size: 1.35rem;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .hero-play-btn {
                width: 70px;
                height: 70px;
                font-size: 1.5rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
            }

            .team-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .nav-inner {
                justify-content: space-between;
            }

            .nav-logo-wrap {
                padding: 0;
            }

            .hero-section {
                min-height: 440px;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-play-btn {
                width: 60px;
                height: 60px;
                font-size: 1.3rem;
                border-width: 2px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-card {
                padding: 18px 14px;
            }

            .stat-card .stat-value {
                font-size: 1.8rem;
            }

            .service-matrix {
                grid-template-columns: 1fr;
            }

            .team-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .comparison-table-wrap {
                border-radius: var(--radius-md);
            }

            .cta-form-section {
                padding: 32px 20px;
            }

            .cta-form-section h3 {
                font-size: 1.4rem;
            }

            .cta-form-row {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-form-row input {
                min-width: auto;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .section-block {
                padding: 44px 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .deep-content-text h3 {
                font-size: 1.35rem;
            }

            .ranking-item {
                padding: 12px 14px;
                gap: 10px;
            }

            .ranking-num {
                font-size: 1.2rem;
                width: 32px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }

            .hero-subtitle {
                font-size: 0.88rem;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-card .stat-value {
                font-size: 1.5rem;
            }

            .team-cards-grid {
                grid-template-columns: 1fr;
            }

            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 12px;
                font-size: 0.78rem;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .container-custom {
                padding: 0 16px;
            }

            .hero-content {
                padding: 30px 16px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-dark: #0f1f35;
            --accent: #f4a261;
            --accent-dark: #e07b2c;
            --bg-body: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --bg-section: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #6c757d;
            --text-light: #adb5bd;
            --text-white: #ffffff;
            --border-color: #e0e4e8;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 20px 56px rgba(0, 0, 0, 0.18);
            --shadow-primary: 0 8px 28px rgba(230, 57, 70, 0.30);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.40s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --nav-height: 72px;
            --container-max: 1240px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }

        .nav-left {
            justify-content: flex-end;
        }

        .nav-right {
            justify-content: flex-start;
        }

        .nav-logo-wrap {
            flex-shrink: 0;
            text-align: center;
            padding: 0 12px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
            display: inline-block;
        }

        .nav-logo:hover {
            color: var(--primary-dark);
        }

        .nav-logo .logo-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 50%;
            color: #fff;
            text-align: center;
            line-height: 34px;
            font-size: 1rem;
            margin-right: 6px;
            vertical-align: middle;
        }

        .nav-link-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
            cursor: pointer;
        }

        .nav-link-item:hover,
        .nav-link-item.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }

        .nav-link-item.active {
            font-weight: 600;
        }

        .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: var(--shadow-primary);
            transform: translateY(-1px);
        }

        /* ========== HERO - 白皮书获客 ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #1a1a2e 0%, #1d3557 40%, #162447 100%);
            padding: 60px 0 70px;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, rgba(26, 26, 46, 0.6), transparent);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(244, 162, 97, 0.2);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            border: 1px solid rgba(244, 162, 97, 0.3);
            margin-bottom: 16px;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .hero-title span {
            color: var(--accent);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            margin-bottom: 10px;
            max-width: 520px;
        }

        .hero-whitepaper-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-xl);
            display: flex;
            gap: 28px;
            align-items: stretch;
            flex-wrap: wrap;
        }

        .hero-cover-wrap {
            flex: 0 0 200px;
            min-width: 180px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: #f5f5f5;
        }

        .hero-cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
        }

        .hero-toc {
            flex: 1;
            min-width: 220px;
        }

        .hero-toc h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-light);
        }

        .hero-toc ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .hero-toc ul li {
            padding: 7px 0 7px 22px;
            position: relative;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
            border-bottom: 1px dashed var(--border-light);
        }

        .hero-toc ul li:last-child {
            border-bottom: none;
        }

        .hero-toc ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 13px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }

        .hero-form-wrap {
            flex: 0 0 300px;
            min-width: 260px;
            background: #fafbfc;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-color);
        }

        .hero-form-wrap h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            margin-bottom: 6px;
            text-align: center;
        }

        .hero-form-wrap .form-subtitle {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-align: center;
            margin-bottom: 18px;
        }

        .hero-form-wrap .form-control {
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 10px 14px;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            background: #fff;
        }

        .hero-form-wrap .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.1);
            outline: none;
        }

        .hero-form-wrap .btn-submit {
            width: 100%;
            padding: 12px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            margin-top: 4px;
        }

        .hero-form-wrap .btn-submit:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-primary);
            transform: translateY(-1px);
        }

        .hero-form-wrap .form-trust {
            text-align: center;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 10px;
        }

        .hero-form-wrap .form-trust i {
            color: var(--accent);
            margin-right: 3px;
        }

        /* ========== 指标看板 ========== */
        .metrics-section {
            padding: 50px 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            text-align: center;
            padding: 28px 16px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .metric-card .metric-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 10px;
            display: block;
        }

        .metric-card .metric-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.1;
            margin-bottom: 4px;
        }

        .metric-card .metric-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .metric-card .metric-trend {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            margin-top: 6px;
        }

        .metric-trend.up {
            background: #e8f5e9;
            color: #2e7d32;
        }

        .metric-trend.stable {
            background: #fff3e0;
            color: #e65100;
        }

        /* ========== 服务矩阵 ========== */
        .services-section {
            padding: 60px 0;
            background: var(--bg-section);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
            padding: 4px 12px;
            background: rgba(230, 57, 70, 0.08);
            border-radius: 50px;
        }

        .section-heading {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 32px;
            line-height: 1.6;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .service-card .service-icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(230, 57, 70, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }

        .service-card:hover .service-icon-wrap {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        .service-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        .service-card .service-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            background: rgba(244, 162, 97, 0.15);
            color: var(--accent-dark);
            margin-top: 10px;
        }

        /* ========== 热门话题 ========== */
        .topics-section {
            padding: 60px 0;
            background: var(--bg-white);
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .topic-card .topic-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .topic-card:hover .topic-img img {
            transform: scale(1.06);
        }

        .topic-card .topic-img .topic-hot-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            z-index: 2;
        }

        .topic-card .topic-body {
            padding: 18px;
        }

        .topic-card .topic-body h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .topic-card .topic-body .topic-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 14px;
            align-items: center;
        }

        .topic-card .topic-body .topic-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== 结果对比 ========== */
        .compare-section {
            padding: 60px 0;
            background: var(--bg-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .compare-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            z-index: 0;
        }

        .compare-section .section-label {
            color: var(--accent);
            background: rgba(244, 162, 97, 0.2);
            position: relative;
            z-index: 1;
        }

        .compare-section .section-heading {
            color: #fff;
            position: relative;
            z-index: 1;
        }

        .compare-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
            position: relative;
            z-index: 1;
        }

        .compare-table-wrap {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 20px;
        }

        .compare-col {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(4px);
            transition: all var(--transition-base);
        }

        .compare-col.highlight {
            background: rgba(230, 57, 70, 0.15);
            border-color: rgba(230, 57, 70, 0.4);
            box-shadow: 0 0 40px rgba(230, 57, 70, 0.15);
        }

        .compare-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 16px;
            text-align: center;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        }

        .compare-col.highlight h4 {
            color: var(--accent);
        }

        .compare-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .compare-col ul li {
            padding: 9px 0 9px 26px;
            position: relative;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.5;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
        }

        .compare-col ul li:last-child {
            border-bottom: none;
        }

        .compare-col ul li::before {
            position: absolute;
            left: 0;
            top: 12px;
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
        }

        .compare-col:not(.highlight) ul li::before {
            content: '\f00d';
            color: #e57373;
        }

        .compare-col.highlight ul li::before {
            content: '\f00c';
            color: #66bb6a;
        }

        /* ========== 活动亮点 ========== */
        .events-section {
            padding: 60px 0;
            background: var(--bg-section);
        }

        .events-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .event-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 22px;
            display: flex;
            gap: 18px;
            align-items: flex-start;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .event-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: transparent;
        }

        .event-card .event-date-badge {
            flex-shrink: 0;
            width: 60px;
            height: 60px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-md);
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .event-card .event-date-badge .day {
            font-size: 1.4rem;
            line-height: 1;
        }

        .event-card .event-date-badge .month {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .event-card .event-info h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .event-card .event-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        .event-card .event-info .event-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 50px;
            background: rgba(29, 53, 87, 0.08);
            color: var(--secondary);
            margin-top: 6px;
        }

        /* ========== 用户评价 ========== */
        .testimonials-section {
            padding: 60px 0;
            background: var(--bg-white);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: #fafbfc;
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            background: #fff;
        }

        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--primary);
            opacity: 0.3;
            margin-bottom: 8px;
            display: block;
        }

        .testimonial-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
            font-style: italic;
        }

        .testimonial-card .user-info {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-card .user-info .user-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .testimonial-card .user-info .user-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-section);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-item .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-body);
        }

        .faq-item .faq-question:hover {
            background: #fafbfc;
        }

        .faq-item .faq-question .faq-icon {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            background: #fafbfc;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 10px 22px 18px;
        }

        /* ========== CTA 转化 ========== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary) 50%, #1d3557 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 1;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .cta-form-inline {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form-inline input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 2px solid transparent;
            font-size: 0.95rem;
            background: #fff;
            transition: all var(--transition-fast);
        }

        .cta-form-inline input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(244, 162, 97, 0.2);
            outline: none;
        }

        .cta-form-inline .btn-cta-submit {
            padding: 12px 28px;
            background: var(--accent);
            color: #1a1a2e;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .cta-form-inline .btn-cta-submit:hover {
            background: var(--accent-dark);
            color: #fff;
            box-shadow: 0 8px 28px rgba(244, 162, 97, 0.35);
            transform: translateY(-2px);
        }

        .cta-trust-row {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-trust-row span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .cta-trust-row i {
            color: var(--accent);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 40px 0 20px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 24px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 7px;
        }

        .footer-col ul li a {
            color: #aaa;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary-light);
            display: inline-block;
            margin-bottom: 4px;
        }

        .footer-logo:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.78rem;
            color: #888;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .footer-bottom a {
            color: #aaa;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2rem;
            }
            .hero-whitepaper-card {
                flex-direction: column;
                padding: 20px;
            }
            .hero-cover-wrap {
                flex: 0 0 auto;
                max-width: 200px;
                margin: 0 auto;
            }
            .hero-form-wrap {
                flex: 0 0 auto;
                max-width: 400px;
                margin: 0 auto;
                width: 100%;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .events-list {
                grid-template-columns: 1fr;
            }
            .compare-table-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .nav-logo-wrap {
                flex: 1;
                text-align: left;
                padding: 0;
            }
            .nav-left.mobile-open,
            .nav-right.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #fff;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                z-index: 1040;
                gap: 4px;
                align-items: stretch;
            }
            .nav-left.mobile-open {
                border-bottom-left-radius: var(--radius-lg);
                border-bottom-right-radius: var(--radius-lg);
            }
            .nav-link-item {
                display: block;
                text-align: center;
                padding: 10px;
                border-radius: var(--radius-sm);
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-whitepaper-card {
                padding: 16px;
                gap: 16px;
            }
            .hero-cover-wrap {
                max-width: 150px;
            }
            .hero-form-wrap {
                max-width: 100%;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-card .metric-number {
                font-size: 1.8rem;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .section-heading {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-form-inline {
                flex-direction: column;
            }
            .cta-form-inline input {
                width: 100%;
            }
            .cta-form-inline .btn-cta-submit {
                width: 100%;
            }
            .compare-table-wrap {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.35rem;
            }
            .hero-whitepaper-card {
                padding: 12px;
                gap: 12px;
            }
            .hero-cover-wrap {
                max-width: 130px;
                min-width: 120px;
            }
            .hero-toc h3 {
                font-size: 1rem;
            }
            .hero-toc ul li {
                font-size: 0.8rem;
            }
            .hero-form-wrap {
                padding: 16px;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .metric-card {
                padding: 18px 12px;
            }
            .metric-card .metric-number {
                font-size: 1.6rem;
            }
            .section-heading {
                font-size: 1.3rem;
            }
            .service-card {
                padding: 20px 16px;
            }
            .nav-logo {
                font-size: 1.3rem;
            }
            .site-header {
                --nav-height: 60px;
                height: 60px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }