/* roulang page: index */
:root {
            --primary: #5B9BD5;
            --primary-dark: #3D7EB8;
            --primary-light: #E8F2FB;
            --primary-10: #F0F7FD;
            --accent: #F2A93B;
            --accent-dark: #D88C1F;
            --accent-light: #FEF4E4;
            --bg: #F7FAFC;
            --bg-white: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5EAF0;
            --border-light: #EEF2F6;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.10);
            --shadow-hover: 0 12px 28px rgba(15, 23, 42, 0.12);
            --transition: 0.22s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), text-decoration-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-decoration-color: var(--primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        /* Header / Nav */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.03);
        }
        .site-header .navbar {
            padding: 0.65rem 0;
        }
        .site-header .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .site-header .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .site-header .navbar-brand:hover {
            color: var(--text);
            text-decoration: none;
        }
        .site-header .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.6rem 1rem;
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
        }
        .site-header .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-10);
            text-decoration: none;
        }
        .site-header .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .lang-switch {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            background: var(--bg-white);
            border: 1.5px solid var(--border);
            border-radius: 999px;
            padding: 0.15rem 0.4rem;
        }
        .lang-switch .lang-btn {
            background: none;
            border: none;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            cursor: pointer;
            transition: background var(--transition), color var(--transition);
        }
        .lang-switch .lang-btn.active {
            background: var(--primary);
            color: #fff;
        }
        .lang-switch .lang-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .navbar-toggler {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.35rem 0.5rem;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px var(--primary-light);
        }

        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: var(--bg-white);
                margin-top: 0.5rem;
                padding: 1rem;
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-md);
            }
            .lang-switch {
                margin-top: 0.75rem;
                align-self: flex-start;
            }
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(140deg, #E8F2FB 0%, #D6E8F7 45%, #F7FAFC 100%);
            padding: 4.5rem 0 3.5rem;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(91,155,213,0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 10%;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(242,169,59,0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0.4rem 1.1rem;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--primary);
            margin-bottom: 1.2rem;
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }
        .hero-section h1 {
            font-size: 2.9rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 1.2rem;
            letter-spacing: -0.5px;
        }
        .hero-section h1 .highlight {
            color: var(--primary);
            position: relative;
        }
        .hero-section .hero-desc {
            font-size: 1.08rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 1.8rem;
        }
        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-bottom: 1.8rem;
        }
        .hero-meta-row .meta-item {
            display: flex;
            flex-direction: column;
        }
        .hero-meta-row .meta-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
        }
        .hero-meta-row .meta-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .hero-visual {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 1.5rem;
            margin-top: 1rem;
        }
        .hero-visual .visual-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-light);
        }
        .hero-visual .visual-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
        }
        .hero-visual .live-badge {
            background: #FEF2F2;
            color: #DC2626;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.6rem;
            border-radius: 999px;
        }
        .hero-match-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .hero-match-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.6rem 0.75rem;
            background: var(--bg);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
        }
        .hero-match-item .team {
            font-weight: 500;
            color: var(--text);
        }
        .hero-match-item .score {
            font-weight: 700;
            font-size: 1rem;
            color: var(--primary);
            background: var(--bg-white);
            padding: 0.2rem 0.5rem;
            border-radius: 6px;
        }
        .hero-match-item .status {
            font-size: 0.75rem;
            color: var(--accent-dark);
            font-weight: 600;
        }

        /* Buttons */
        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.75rem 1.75rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(91,155,213,0.3);
            text-decoration: none;
        }
        .btn-accent-custom {
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.75rem 1.75rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-accent-custom:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(242,169,59,0.3);
            text-decoration: none;
        }
        .btn-outline-custom {
            background: var(--bg-white);
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 0.75rem 1.75rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background var(--transition), color var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-outline-custom:hover {
            background: var(--primary-10);
            color: var(--primary-dark);
            transform: translateY(-2px);
            text-decoration: none;
        }

        /* Sections */
        .section-padding {
            padding: 4rem 0;
        }
        .section-padding-alt {
            padding: 4rem 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .section-heading {
            margin-bottom: 2.2rem;
        }
        .section-heading h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.6rem;
            letter-spacing: -0.3px;
        }
        .section-heading .section-subtitle {
            color: var(--text-secondary);
            font-size: 0.98rem;
            max-width: 720px;
            line-height: 1.75;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-10);
            padding: 0.3rem 0.9rem;
            border-radius: 999px;
            margin-bottom: 0.8rem;
            letter-spacing: 0.5px;
        }

        /* Search / Entry */
        .search-section {
            background: var(--bg);
        }
        .search-box-wrapper {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 2rem 2.2rem;
        }
        .search-box-wrapper .input-group {
            max-width: 680px;
            margin: 0 auto;
        }
        .search-box-wrapper .form-control {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm) 0 0 var(--radius-sm);
            padding: 0.7rem 1rem;
            font-size: 0.95rem;
            background: var(--bg);
            color: var(--text);
        }
        .search-box-wrapper .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91,155,213,0.12);
            background: var(--bg-white);
        }
        .search-box-wrapper .btn-search {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 0.7rem 1.5rem;
            font-weight: 600;
            transition: background var(--transition);
        }
        .search-box-wrapper .btn-search:hover {
            background: var(--primary-dark);
        }
        .quick-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            justify-content: center;
            margin-top: 1.2rem;
        }
        .quick-tags .tag-link {
            display: inline-block;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0.3rem 0.9rem;
            font-size: 0.8rem;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .quick-tags .tag-link:hover {
            background: var(--primary-10);
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
        }

        /* Category Matrix */
        .category-matrix-section {
            background: var(--bg);
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            display: block;
            text-decoration: none;
            color: var(--text);
        }
        .category-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary);
            text-decoration: none;
            color: var(--text);
        }
        .category-card .card-icon {
            width: 44px;
            height: 44px;
            background: var(--primary-10);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 1rem;
        }
        .category-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text);
        }
        .category-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* Indicator / Stats */
        .stats-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card .stat-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.3rem;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
        }
        .stat-card .stat-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-top: 0.25rem;
        }
        .stat-card.accent .stat-value {
            color: var(--accent-dark);
        }

        /* Featured List */
        .featured-section {
            background: var(--bg);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .featured-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
            display: block;
            text-decoration: none;
            color: var(--text);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            text-decoration: none;
            color: var(--text);
        }
        .featured-card .card-img {
            aspect-ratio: 16/9;
            background-color: var(--primary-10);
            overflow: hidden;
            position: relative;
        }
        .featured-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .featured-card .card-img .badge-top {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
        }
        .featured-card .card-body-pad {
            padding: 1.2rem 1.4rem 1.4rem;
        }
        .featured-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text);
        }
        .featured-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0.75rem;
        }
        .featured-card .card-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* Comparison Table */
        .comparison-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .comparison-table {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .comparison-table .table {
            margin-bottom: 0;
            font-size: 0.9rem;
        }
        .comparison-table .table thead th {
            background: var(--primary-10);
            color: var(--text);
            font-weight: 600;
            border-bottom: 1px solid var(--border);
            padding: 0.9rem 1.2rem;
            white-space: nowrap;
        }
        .comparison-table .table tbody td {
            padding: 0.85rem 1.2rem;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
            vertical-align: middle;
        }
        .comparison-table .table tbody tr:last-child td {
            border-bottom: none;
        }
        .comparison-table .table tbody tr:hover td {
            background: var(--primary-10);
        }
        .comparison-table .score-highlight {
            font-weight: 700;
            color: var(--primary);
        }
        .comparison-table .trend-up {
            color: #16A34A;
            font-weight: 600;
        }
        .comparison-table .trend-flat {
            color: var(--accent-dark);
            font-weight: 600;
        }

        /* Latest Updates */
        .latest-section {
            background: var(--bg);
        }
        .update-timeline {
            position: relative;
            padding-left: 1.5rem;
            border-left: 3px solid var(--primary-light);
        }
        .update-item {
            position: relative;
            padding-bottom: 1.5rem;
            padding-left: 1.5rem;
        }
        .update-item::before {
            content: '';
            position: absolute;
            left: -1.7rem;
            top: 0.3rem;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--bg-white);
            box-shadow: 0 0 0 3px var(--primary-light);
        }
        .update-item .update-date {
            font-size: 0.8rem;
            color: var(--text-light);
            font-weight: 500;
            margin-bottom: 0.25rem;
        }
        .update-item .update-title {
            font-weight: 600;
            color: var(--text);
            font-size: 0.95rem;
        }
        .update-item .update-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* Hot Ranking */
        .ranking-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 0.85rem 1.2rem;
            transition: background var(--transition), box-shadow var(--transition);
        }
        .ranking-item:hover {
            background: var(--primary-10);
            box-shadow: var(--shadow-sm);
        }
        .ranking-item .rank-num {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            min-width: 3rem;
            text-align: center;
        }
        .ranking-item .rank-num.top1 {
            color: var(--accent-dark);
        }
        .ranking-item .rank-num.top2 {
            color: var(--accent);
        }
        .ranking-item .rank-num.top3 {
            color: #B8741A;
        }
        .ranking-item .rank-info {
            flex: 1;
        }
        .ranking-item .rank-name {
            font-weight: 600;
            color: var(--text);
            font-size: 0.95rem;
        }
        .ranking-item .rank-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }
        .ranking-item .rank-heat {
            font-size: 0.85rem;
            color: var(--accent-dark);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* Data Insight */
        .insight-section {
            background: var(--bg);
        }
        .insight-block {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 2.2rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .insight-block h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.8rem;
        }
        .insight-block p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 1rem;
        }
        .insight-block .insight-chart-placeholder {
            background: linear-gradient(135deg, var(--primary-10) 0%, var(--bg) 100%);
            border-radius: var(--radius-sm);
            aspect-ratio: 3/1;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 0.9rem;
            border: 1px dashed var(--border);
        }

        /* Milestone */
        .milestone-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .milestone-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }
        .milestone-item {
            text-align: center;
            padding: 1.5rem 1rem;
        }
        .milestone-item .milestone-dot {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            margin: 0 auto 0.8rem;
            box-shadow: 0 0 0 4px var(--primary-light);
        }
        .milestone-item .milestone-date {
            font-size: 0.8rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .milestone-item .milestone-title {
            font-weight: 600;
            color: var(--text);
            font-size: 0.95rem;
            margin: 0.3rem 0;
        }
        .milestone-item .milestone-desc {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Brand Intro */
        .brand-section {
            background: var(--bg);
        }
        .brand-block {
            background: linear-gradient(140deg, var(--primary-10) 0%, var(--bg-white) 100%);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            border: 1px solid var(--border-light);
        }
        .brand-block h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 1.2rem;
        }
        .brand-block p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.85;
            margin-bottom: 1rem;
        }

        /* News / Articles */
        .news-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .news-item {
            display: flex;
            gap: 1.2rem;
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.4rem;
            transition: box-shadow var(--transition), background var(--transition);
            text-decoration: none;
            color: var(--text);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            background: var(--primary-10);
            text-decoration: none;
            color: var(--text);
        }
        .news-item .news-img {
            width: 100px;
            height: 68px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--primary-10);
        }
        .news-item .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-item .news-body {
            flex: 1;
        }
        .news-item .news-title {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--text);
            margin-bottom: 0.3rem;
        }
        .news-item .news-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .news-item .news-date {
            font-size: 0.78rem;
            color: var(--text-light);
            margin-top: 0.3rem;
        }

        /* Platform Guarantee */
        .guarantee-section {
            background: var(--bg);
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .guarantee-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 1.6rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .guarantee-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .guarantee-card .guarantee-icon {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
        }
        .guarantee-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.4rem;
        }
        .guarantee-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* Quick Tips */
        .tips-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .tips-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
        }
        .tip-item {
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 1.2rem 1.4rem;
            border-left: 4px solid var(--primary);
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .tip-item strong {
            color: var(--text);
            display: block;
            margin-bottom: 0.2rem;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg);
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.75rem;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-header .accordion-button {
            background: var(--bg-white);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            padding: 1rem 1.4rem;
            border-radius: var(--radius-md);
            transition: background var(--transition);
        }
        .faq-accordion .accordion-header .accordion-button:not(.collapsed) {
            background: var(--primary-10);
            color: var(--primary);
            box-shadow: none;
        }
        .faq-accordion .accordion-header .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(91,155,213,0.15);
        }
        .faq-accordion .accordion-body {
            background: #F1F5F9;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.75;
            padding: 1rem 1.4rem;
        }

        /* Form */
        .form-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .form-wrapper {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 2rem 2.2rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .form-wrapper .form-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }
        .form-wrapper .form-control,
        .form-wrapper .form-select {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.65rem 1rem;
            font-size: 0.9rem;
            background: var(--bg-white);
            color: var(--text);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .form-wrapper .form-control:focus,
        .form-wrapper .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91,155,213,0.12);
        }
        .form-wrapper .btn-primary-custom {
            width: 100%;
            justify-content: center;
        }

        /* Resources */
        .resources-section {
            background: var(--bg);
        }
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
        }
        .resource-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 1.4rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            align-items: center;
            gap: 1rem;
            text-decoration: none;
            color: var(--text);
        }
        .resource-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            text-decoration: none;
            color: var(--text);
        }
        .resource-card .resource-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-10);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .resource-card .resource-title {
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text);
        }
        .resource-card .resource-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        /* Footer */
        .site-footer {
            background: #1F2937;
            color: #D1D5DB;
            padding: 3rem 0 2rem;
        }
        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .site-footer .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.9rem;
        }
        .site-footer p {
            font-size: 0.85rem;
            color: #9CA3AF;
            line-height: 1.7;
        }
        .site-footer .footer-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .site-footer .footer-link {
            display: block;
            font-size: 0.85rem;
            color: #9CA3AF;
            margin-bottom: 0.4rem;
            transition: color var(--transition);
        }
        .site-footer .footer-link:hover {
            color: #fff;
            text-decoration: none;
        }
        .site-footer .footer-copyright {
            border-top: 1px solid #374151;
            margin-top: 2rem;
            padding-top: 1.5rem;
            font-size: 0.8rem;
            color: #9CA3AF;
            text-align: center;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .milestone-timeline {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-section h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 767.98px) {
            .section-padding,
            .section-padding-alt {
                padding: 2.5rem 0;
            }
            .hero-section {
                padding: 2.5rem 0 2rem;
            }
            .hero-section h1 {
                font-size: 1.7rem;
            }
            .hero-section .hero-desc {
                font-size: 0.95rem;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .milestone-timeline {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .tips-list {
                grid-template-columns: 1fr;
                gap: 0.75rem;
            }
            .resource-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .news-item {
                flex-direction: column;
                gap: 0.8rem;
            }
            .news-item .news-img {
                width: 100%;
                height: auto;
                aspect-ratio: 16/7;
            }
            .hero-meta-row {
                gap: 1.2rem;
            }
            .comparison-table .table {
                font-size: 0.78rem;
            }
            .comparison-table .table thead th,
            .comparison-table .table tbody td {
                padding: 0.6rem 0.7rem;
            }
            .search-box-wrapper {
                padding: 1.5rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #5B9BD5;
            --primary-dark: #3D7EB8;
            --primary-light: #E8F2FB;
            --primary-10: #F0F7FD;
            --accent: #F2A93B;
            --accent-dark: #D88C1F;
            --accent-light: #FEF4E4;
            --bg: #F7FAFC;
            --bg-white: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5EAF0;
            --border-light: #EEF2F6;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.10);
            --shadow-hover: 0 12px 28px rgba(15, 23, 42, 0.12);
            --transition: 0.22s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            margin: 0;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), text-decoration-color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-decoration-color: var(--primary);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        /* Header / Nav */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.03);
        }

        .site-header .navbar {
            padding: 0.65rem 0;
        }

        .site-header .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .site-header .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .site-header .navbar-brand:hover {
            color: var(--text);
            text-decoration: none;
        }

        .site-header .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.6rem 1rem;
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
        }

        .site-header .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-10);
            text-decoration: none;
        }

        .site-header .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .lang-switch .lang-btn {
            background: none;
            border: none;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            cursor: pointer;
            transition: background var(--transition), color var(--transition);
        }

        .lang-switch .lang-btn.active {
            background: var(--primary);
            color: #fff;
        }

        .lang-switch .lang-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .navbar-toggler {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.35rem 0.5rem;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px var(--primary-light);
        }

        .site-header .navbar-collapse {
            background: var(--bg-white);
            margin-top: 0.5rem;
            padding: 1rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }

        /* Category page header */
        .category-header {
            background: linear-gradient(140deg, #E8F2FB 0%, #D6E8F7 45%, #F7FAFC 100%);
            padding: 3rem 0 2rem;
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(91, 155, 213, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            margin-bottom: 1.25rem;
            padding: 0;
            background: transparent;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            list-style: none;
        }

        .breadcrumb li {
            display: inline-flex;
            align-items: center;
        }

        .breadcrumb li+li::before {
            content: '/';
            margin: 0 0.5rem;
            color: var(--text-light);
            font-size: 0.85rem;
        }

        .breadcrumb a {
            color: var(--text-secondary);
            font-weight: 500;
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }

        .category-title-wrap h1 {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.75rem;
            letter-spacing: 0.5px;
        }

        .category-title-wrap .category-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .category-title-wrap .category-desc strong {
            color: var(--primary);
            font-weight: 600;
        }

        /* Filter toolbar */
        .filter-toolbar {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            margin-top: 2rem;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
        }

        .filter-toolbar .filter-group {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        .filter-toolbar label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
        }

        .filter-toolbar select,
        .filter-toolbar .filter-btn {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            color: var(--text);
            background: var(--bg-white);
            cursor: pointer;
            transition: border-color var(--transition), background var(--transition), color var(--transition);
            min-width: 120px;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            padding-right: 2.5rem;
        }

        .filter-toolbar select:hover,
        .filter-toolbar select:focus,
        .filter-toolbar .filter-btn:hover,
        .filter-toolbar .filter-btn:focus {
            border-color: var(--primary);
            outline: none;
            background-color: var(--primary-10);
        }

        .filter-toolbar .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .filter-toolbar .filter-actions {
            display: flex;
            gap: 0.75rem;
            margin-left: auto;
        }

        /* Analysis article list */
        .analysis-list-section {
            padding: 3rem 0;
        }

        .analysis-list-section .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.75rem;
        }

        .analysis-list-section .section-heading h2 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin: 0;
        }

        .analysis-list-section .section-heading .result-count {
            font-size: 0.9rem;
            color: var(--text-secondary);
            background: var(--primary-10);
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-weight: 500;
        }

        .analysis-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
            display: flex;
            flex-direction: row;
            margin-bottom: 1.25rem;
        }

        .analysis-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--border);
        }

        .analysis-card .card-img-wrap {
            flex-shrink: 0;
            width: 240px;
            min-height: 170px;
            overflow: hidden;
            position: relative;
        }

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

        .analysis-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .analysis-card .card-body {
            padding: 1.5rem 1.75rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .analysis-card .card-meta {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 0.5rem;
            flex-wrap: wrap;
        }

        .analysis-card .card-meta .tag {
            background: var(--accent-light);
            color: var(--accent-dark);
            font-weight: 600;
            padding: 0.2rem 0.65rem;
            border-radius: 4px;
            font-size: 0.75rem;
        }

        .analysis-card .card-meta .date {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        .analysis-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.5rem;
            line-height: 1.45;
        }

        .analysis-card h3 a {
            color: var(--text);
            text-decoration: none;
            transition: color var(--transition);
        }

        .analysis-card h3 a:hover {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-color: var(--primary);
        }

        .analysis-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0.75rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .analysis-card .card-link {
            margin-top: auto;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition), gap var(--transition);
        }

        .analysis-card .card-link:hover {
            color: var(--primary-dark);
            text-decoration: none;
            gap: 0.65rem;
        }

        /* Data summary */
        .data-summary-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 3rem 0;
        }

        .data-summary-section .summary-heading {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1.75rem;
        }

        .summary-stat-card {
            background: var(--primary-10);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            height: 100%;
            border: 1px solid var(--primary-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .summary-stat-card .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 0.35rem;
        }

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

        .summary-stat-card .stat-desc {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 0.4rem;
        }

        /* Related recommendations */
        .related-section {
            padding: 3.5rem 0;
        }

        .related-section .related-heading {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1.75rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .related-section .related-heading i {
            color: var(--accent);
            font-size: 1.25rem;
        }

        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            padding: 1.25rem 1.5rem;
            height: 100%;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border);
        }

        .related-card .related-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            display: inline-block;
            padding: 0.2rem 0.65rem;
            border-radius: 4px;
            margin-bottom: 0.75rem;
        }

        .related-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.4rem;
            line-height: 1.5;
        }

        .related-card h4 a {
            color: var(--text);
            text-decoration: none;
        }

        .related-card h4 a:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        .related-card .related-excerpt {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* FAQ support */
        .faq-support-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 3.5rem 0;
        }

        .faq-support-section .faq-heading {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1.75rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .faq-support-section .faq-heading i {
            color: var(--primary);
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }

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

        .faq-accordion .accordion-button {
            background: var(--bg-white);
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            padding: 1.15rem 1.5rem;
            border: none;
            box-shadow: none;
            transition: background var(--transition), color var(--transition);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-10);
            color: var(--primary);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 2px var(--primary-light);
            outline: none;
        }

        .faq-accordion .accordion-button::after {
            background-size: 1.25rem;
            width: 1.25rem;
            height: 1.25rem;
        }

        .faq-accordion .accordion-body {
            background: var(--bg);
            color: var(--text-secondary);
            padding: 1.25rem 1.5rem;
            font-size: 0.95rem;
            line-height: 1.8;
            border-top: 1px solid var(--border-light);
        }

        /* CTA section */
        .cta-section {
            padding: 4rem 0;
            background: linear-gradient(140deg, var(--primary-10) 0%, var(--bg) 100%);
        }

        .cta-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-lg);
            padding: 2.5rem 2rem;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .cta-card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.75rem;
        }

        .cta-card p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .cta-card .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            justify-content: center;
            max-width: 520px;
            margin: 0 auto;
        }

        .cta-card .cta-form input {
            flex: 1 1 220px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.65rem 1rem;
            font-size: 0.95rem;
            color: var(--text);
            background: var(--bg-white);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .cta-card .cta-form input::placeholder {
            color: var(--text-light);
        }

        .cta-card .cta-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-light);
            outline: none;
        }

        .btn-primary-custom {
            background: var(--primary);
            border: none;
            color: #fff;
            font-weight: 600;
            padding: 0.65rem 1.75rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            text-decoration: none;
        }

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

        /* Bottom quick links */
        .bottom-links {
            padding: 2.5rem 0;
            background: var(--bg);
        }

        .bottom-links .quick-links-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
            justify-content: center;
        }

        .bottom-links .quick-link {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 0.5rem 1.25rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
        }

        .bottom-links .quick-link:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-10);
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .bottom-links .quick-link i {
            font-size: 0.85rem;
            color: var(--primary);
        }

        /* Footer */
        .site-footer {
            background: #1E2B39;
            color: #C5D0DA;
            padding: 3.5rem 0 1.5rem;
            margin-top: 0;
        }

        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.25rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .site-footer .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.95rem;
        }

        .site-footer p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #B0BBC6;
            margin-bottom: 0;
        }

        .site-footer .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }

        .site-footer .footer-link {
            display: block;
            color: #B0BBC6;
            font-size: 0.9rem;
            margin-bottom: 0.6rem;
            transition: color var(--transition);
        }

        .site-footer .footer-link:hover {
            color: #fff;
            text-decoration: none;
        }

        .site-footer .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            font-size: 0.85rem;
            color: #8A97A3;
            text-align: center;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .category-title-wrap h1 {
                font-size: 1.9rem;
            }
            .analysis-card .card-img-wrap {
                width: 200px;
                min-height: 150px;
            }
        }

        @media (max-width: 767.98px) {
            .category-header {
                padding: 2.25rem 0 1.75rem;
            }
            .category-title-wrap h1 {
                font-size: 1.6rem;
            }
            .category-title-wrap .category-desc {
                font-size: 0.95rem;
            }
            .filter-toolbar {
                padding: 1rem;
                flex-direction: column;
                align-items: stretch;
            }
            .filter-toolbar .filter-actions {
                margin-left: 0;
                width: 100%;
            }
            .filter-toolbar .filter-btn {
                flex: 1;
                text-align: center;
            }
            .analysis-card {
                flex-direction: column;
            }
            .analysis-card .card-img-wrap {
                width: 100%;
                min-height: 190px;
            }
            .analysis-card .card-body {
                padding: 1.25rem;
            }
            .analysis-card h3 {
                font-size: 1.05rem;
            }
            .summary-stat-card .stat-number {
                font-size: 1.6rem;
            }
            .related-section,
            .faq-support-section,
            .cta-section {
                padding: 2.5rem 0;
            }
            .cta-card {
                padding: 1.75rem 1.25rem;
            }
            .cta-card .cta-form {
                flex-direction: column;
            }
            .cta-card .cta-form input {
                flex: 1 1 auto;
                width: 100%;
            }
            .btn-primary-custom {
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .site-header .navbar-brand {
                font-size: 1.15rem;
            }
            .site-header .navbar-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .category-title-wrap h1 {
                font-size: 1.45rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                flex-wrap: wrap;
            }
            .filter-toolbar select {
                min-width: 100%;
                width: 100%;
            }
            .analysis-card .card-img-wrap {
                min-height: 160px;
            }
            .summary-stat-card {
                padding: 1.15rem;
            }
            .summary-stat-card .stat-number {
                font-size: 1.4rem;
            }
            .site-footer {
                padding: 2.5rem 0 1.25rem;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #5B9BD5;
      --primary-dark: #3D7EB8;
      --primary-light: #E8F2FB;
      --primary-10: #F0F7FD;
      --accent: #F2A93B;
      --accent-dark: #D88C1F;
      --accent-light: #FEF4E4;
      --bg: #F7FAFC;
      --bg-white: #FFFFFF;
      --text: #1F2937;
      --text-secondary: #6B7280;
      --text-light: #9CA3AF;
      --border: #E5EAF0;
      --border-light: #EEF2F6;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
      --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.10);
      --shadow-hover: 0 12px 28px rgba(15, 23, 42, 0.12);
      --transition: 0.22s ease;
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-stack);
      background-color: var(--bg);
      color: var(--text);
      font-size: 16px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      margin: 0;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition), text-decoration-color var(--transition);
    }
    a:hover {
      color: var(--primary-dark);
      text-decoration: underline;
      text-decoration-color: var(--primary);
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

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

    .container {
      max-width: 1200px;
      padding-left: 20px;
      padding-right: 20px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Header / Nav */
    .site-header {
      background: var(--bg-white);
      border-bottom: 1px solid var(--border-light);
      padding: 0;
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 1px 4px rgba(15, 23, 42, 0.03);
    }
    .site-header .navbar {
      padding: 0.65rem 0;
    }
    .site-header .navbar-brand {
      font-weight: 700;
      font-size: 1.35rem;
      color: var(--text);
      letter-spacing: 0.5px;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .site-header .navbar-brand .brand-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1rem;
      flex-shrink: 0;
    }
    .site-header .navbar-brand:hover {
      color: var(--text);
      text-decoration: none;
    }
    .site-header .navbar-nav .nav-link {
      font-weight: 500;
      font-size: 0.95rem;
      color: var(--text-secondary);
      padding: 0.6rem 1rem;
      border-radius: var(--radius-sm);
      transition: color var(--transition), background var(--transition);
    }
    .site-header .navbar-nav .nav-link:hover {
      color: var(--primary);
      background: var(--primary-10);
      text-decoration: none;
    }
    .site-header .navbar-nav .nav-link.active {
      color: var(--primary);
      background: var(--primary-light);
      font-weight: 600;
    }
    .lang-switch .lang-btn {
      background: none;
      border: none;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 0.3rem 0.75rem;
      border-radius: 999px;
      cursor: pointer;
      transition: background var(--transition), color var(--transition);
    }
    .lang-switch .lang-btn.active {
      background: var(--primary);
      color: #fff;
    }
    .lang-switch .lang-btn:hover {
      background: var(--primary-light);
      color: var(--primary);
    }
    .navbar-toggler {
      border: 1.5px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 0.35rem 0.5rem;
    }
    .navbar-toggler:focus {
      box-shadow: 0 0 0 2px var(--primary-light);
    }
    .site-header .navbar-collapse {
      background: var(--bg-white);
      margin-top: 0.5rem;
      padding: 1rem;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
    }
    @media (min-width: 992px) {
      .site-header .navbar-collapse {
        background: transparent;
        margin-top: 0;
        padding: 0;
        box-shadow: none;
        border-radius: 0;
      }
    }

    /* Breadcrumb */
    .breadcrumb-section {
      padding: 1.5rem 0 0.5rem;
    }
    .breadcrumb-section .breadcrumb {
      margin-bottom: 0;
      font-size: 0.9rem;
      color: var(--text-secondary);
    }
    .breadcrumb-section .breadcrumb a {
      color: var(--text-secondary);
      text-decoration: none;
    }
    .breadcrumb-section .breadcrumb a:hover {
      color: var(--primary);
      text-decoration: underline;
    }
    .breadcrumb-section .breadcrumb .active {
      color: var(--text);
      font-weight: 500;
    }

    /* Category Head */
    .category-head {
      padding: 1.5rem 0 2rem;
      border-bottom: 1px solid var(--border-light);
      background: var(--bg-white);
      margin-bottom: 2rem;
    }
    .category-head h1 {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 0.5rem;
    }
    .category-head p {
      font-size: 1rem;
      color: var(--text-secondary);
      max-width: 800px;
      line-height: 1.8;
    }

    /* Filter Toolbar */
    .filter-toolbar {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 1rem 1.5rem;
      margin-bottom: 2rem;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      align-items: center;
      justify-content: space-between;
    }
    .filter-toolbar .filter-group {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      align-items: center;
    }
    .filter-toolbar select,
    .filter-toolbar input {
      border: 1.5px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 0.5rem 1rem;
      font-size: 0.9rem;
      color: var(--text);
      background: var(--bg-white);
      transition: border-color var(--transition);
    }
    .filter-toolbar select:focus,
    .filter-toolbar input:focus {
      border-color: var(--primary);
      outline: none;
    }
    .filter-toolbar .btn-outline-primary {
      border: 1.5px solid var(--primary);
      color: var(--primary);
      background: transparent;
      border-radius: var(--radius-sm);
      padding: 0.5rem 1.2rem;
      font-weight: 500;
      transition: all var(--transition);
    }
    .filter-toolbar .btn-outline-primary:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
    }
    .filter-toolbar .btn-outline-primary.active {
      background: var(--primary);
      color: #fff;
    }

    /* Score List Section */
    .score-list-section {
      padding: 1rem 0 2rem;
    }
    .score-list-section .section-title {
      font-size: 1.5rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
    }
    .score-list {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }
    .score-card {
      display: flex;
      flex-wrap: wrap;
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: box-shadow var(--transition), transform var(--transition);
    }
    .score-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
    .score-card .score-thumb {
      width: 180px;
      min-height: 120px;
      background: var(--primary-10);
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .score-card .score-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .score-card .score-content {
      flex: 1;
      padding: 1.25rem 1.5rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
    }
    .score-card .score-info h3 {
      font-size: 1.15rem;
      font-weight: 600;
      margin: 0 0 0.25rem;
      color: var(--text);
    }
    .score-card .score-info p {
      margin: 0;
      font-size: 0.9rem;
      color: var(--text-secondary);
    }
    .score-card .score-numbers {
      text-align: right;
      min-width: 100px;
    }
    .score-card .score-numbers .final-score {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--primary-dark);
      line-height: 1.2;
    }
    .score-card .score-numbers .match-status {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--accent-dark);
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .score-card .score-numbers .match-time {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* Data Summary */
    .data-summary-section {
      padding: 3rem 0;
      background: var(--bg-white);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }
    .data-summary-section .section-title {
      font-size: 1.5rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
    }
    .data-summary-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
    }
    .data-summary-card {
      background: var(--bg);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }
    .data-summary-card .stat-value {
      font-size: 2rem;
      font-weight: 700;
      color: var(--primary-dark);
    }
    .data-summary-card .stat-label {
      font-size: 0.9rem;
      color: var(--text-secondary);
      margin-top: 0.25rem;
    }

    /* Related Resources */
    .related-resources-section {
      padding: 3rem 0;
    }
    .related-resources-section .section-title {
      font-size: 1.5rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
    }
    .related-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      box-shadow: var(--shadow-sm);
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: box-shadow var(--transition);
    }
    .related-card:hover {
      box-shadow: var(--shadow-hover);
    }
    .related-card h3 {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 0.5rem;
    }
    .related-card p {
      font-size: 0.9rem;
      color: var(--text-secondary);
      margin-bottom: 1rem;
    }
    .related-card a {
      font-weight: 500;
    }

    /* FAQ Section */
    .faq-section {
      padding: 3rem 0;
      background: var(--bg-white);
      border-top: 1px solid var(--border-light);
    }
    .faq-section .section-title {
      font-size: 1.5rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
    }
    .accordion-item {
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm) !important;
      margin-bottom: 0.75rem;
      overflow: hidden;
    }
    .accordion-button {
      font-weight: 600;
      color: var(--text);
      background: var(--bg-white);
      padding: 1rem 1.25rem;
      border-radius: var(--radius-sm) !important;
    }
    .accordion-button:not(.collapsed) {
      background: var(--primary-10);
      color: var(--primary-dark);
      box-shadow: none;
    }
    .accordion-button:focus {
      box-shadow: 0 0 0 2px var(--primary-light);
    }
    .accordion-body {
      background: #F1F5F9;
      color: var(--text);
      font-size: 0.95rem;
      padding: 1rem 1.25rem;
    }

    /* Subscribe CTA */
    .subscribe-section {
      padding: 3rem 0;
    }
    .subscribe-card {
      background: linear-gradient(135deg, var(--primary-light) 0%, #D6E8F7 100%);
      border-radius: var(--radius-lg);
      padding: 2rem;
      box-shadow: var(--shadow-md);
    }
    .subscribe-card h2 {
      font-size: 1.6rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .subscribe-card p {
      color: var(--text-secondary);
      margin-bottom: 1.5rem;
    }
    .subscribe-form {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      align-items: center;
    }
    .subscribe-form input {
      flex: 1 1 240px;
      border: 1.5px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 0.75rem 1rem;
      font-size: 1rem;
      color: var(--text);
      background: var(--bg-white);
    }
    .subscribe-form input:focus {
      border-color: var(--primary);
      outline: none;
    }
    .subscribe-form .btn-primary {
      background: var(--primary);
      border: none;
      border-radius: var(--radius-sm);
      padding: 0.75rem 1.5rem;
      font-size: 1rem;
      font-weight: 600;
      color: #fff;
      transition: background var(--transition), transform var(--transition);
    }
    .subscribe-form .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-2px);
    }

    /* Bottom Links */
    .bottom-links-section {
      padding: 2rem 0 3rem;
      text-align: center;
    }
    .bottom-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 1.5rem;
      font-size: 0.95rem;
    }
    .bottom-links a {
      color: var(--text-secondary);
    }
    .bottom-links a:hover {
      color: var(--primary);
    }

    /* Footer */
    .site-footer {
      background: #1F2937;
      color: #D1D5DB;
      padding: 3rem 0 1.5rem;
      margin-top: 2rem;
    }
    .site-footer .footer-brand {
      font-size: 1.4rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      margin-bottom: 1rem;
    }
    .site-footer .footer-brand .brand-icon {
      width: 36px;
      height: 36px;
      background: var(--primary);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1rem;
    }
    .site-footer p {
      color: #9CA3AF;
      font-size: 0.9rem;
      line-height: 1.7;
    }
    .site-footer .footer-title {
      color: #fff;
      font-weight: 600;
      margin-bottom: 1rem;
      font-size: 1rem;
    }
    .site-footer .footer-link {
      display: block;
      color: #D1D5DB;
      text-decoration: none;
      font-size: 0.9rem;
      margin-bottom: 0.5rem;
      transition: color var(--transition);
    }
    .site-footer .footer-link:hover {
      color: var(--primary);
      text-decoration: underline;
    }
    .site-footer .footer-copyright {
      border-top: 1px solid #374151;
      margin-top: 2rem;
      padding-top: 1.5rem;
      text-align: center;
      font-size: 0.85rem;
      color: #9CA3AF;
    }

    /* Responsive */
    @media (max-width: 991.98px) {
      .category-head h1 {
        font-size: 1.7rem;
      }
      .filter-toolbar {
        flex-direction: column;
        align-items: stretch;
      }
      .data-summary-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
      }
      .score-card {
        flex-direction: column;
      }
      .score-card .score-thumb {
        width: 100%;
        min-height: 160px;
      }
      .score-card .score-numbers {
        text-align: left;
      }
    }

    @media (max-width: 575.98px) {
      .container {
        padding-left: 15px;
        padding-right: 15px;
      }
      .category-head h1 {
        font-size: 1.5rem;
      }
      .data-summary-grid {
        grid-template-columns: 1fr;
      }
      .filter-toolbar {
        padding: 1rem;
      }
      .subscribe-card {
        padding: 1.5rem;
      }
      .subscribe-form input {
        flex: 1 1 100%;
      }
    }

/* roulang page: category4 */
:root {
            --primary: #5B9BD5;
            --primary-dark: #3D7EB8;
            --primary-light: #E8F2FB;
            --primary-10: #F0F7FD;
            --accent: #F2A93B;
            --accent-dark: #D88C1F;
            --accent-light: #FEF4E4;
            --bg: #F7FAFC;
            --bg-white: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5EAF0;
            --border-light: #EEF2F6;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.10);
            --shadow-hover: 0 12px 28px rgba(15, 23, 42, 0.12);
            --transition: 0.22s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), text-decoration-color var(--transition);
        }

        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-decoration-color: var(--primary);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        /* Header / Nav */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.03);
        }

        .site-header .navbar {
            padding: 0.65rem 0;
        }

        .site-header .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .site-header .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .site-header .navbar-brand:hover {
            color: var(--text);
            text-decoration: none;
        }

        .site-header .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.6rem 1rem;
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
        }

        .site-header .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-10);
            text-decoration: none;
        }

        .site-header .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .lang-switch .lang-btn {
            background: none;
            border: none;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            cursor: pointer;
            transition: background var(--transition), color var(--transition);
        }

        .lang-switch .lang-btn.active {
            background: var(--primary);
            color: #fff;
        }

        .lang-switch .lang-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .navbar-toggler {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.35rem 0.5rem;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px var(--primary-light);
        }

        .site-header .navbar-collapse {
            background: var(--bg-white);
            margin-top: 0.5rem;
            padding: 1rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 1rem 0;
        }

        .breadcrumb-section .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
            font-size: 0.9rem;
        }

        .breadcrumb-section .breadcrumb-item a {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .breadcrumb-section .breadcrumb-item a:hover {
            color: var(--primary);
        }

        .breadcrumb-section .breadcrumb-item.active {
            color: var(--text);
            font-weight: 600;
        }

        .breadcrumb-item+.breadcrumb-item::before {
            content: "›";
            color: var(--text-light);
        }

        /* Page header */
        .page-header-section {
            background: linear-gradient(140deg, var(--primary-10) 0%, var(--bg-white) 60%);
            padding: 3rem 0 2.5rem;
            border-bottom: 1px solid var(--border-light);
        }

        .page-header-section h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.75rem;
            letter-spacing: 0.5px;
            line-height: 1.35;
        }

        .page-header-section .page-intro {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .page-header-section .header-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1.25rem;
        }

        .page-header-section .header-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.88rem;
            color: var(--text-secondary);
            background: var(--bg-white);
            padding: 0.35rem 0.85rem;
            border-radius: 999px;
            border: 1px solid var(--border);
        }

        .page-header-section .header-meta .meta-item i {
            color: var(--primary);
            font-size: 0.8rem;
        }

        /* Filter bar */
        .filter-bar {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.25rem 1.5rem;
            margin-top: 2rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow-sm);
        }

        .filter-bar .filter-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            margin-bottom: 0.5rem;
            display: block;
        }

        .filter-bar .form-select,
        .filter-bar .form-control {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            padding: 0.55rem 0.9rem;
            color: var(--text);
            background-color: var(--bg-white);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .filter-bar .form-select:focus,
        .filter-bar .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91, 155, 213, 0.12);
        }

        .filter-bar .btn-filter {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.4rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }

        .filter-bar .btn-filter:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

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

        /* Match list section */
        .match-list-section {
            padding: 0 0 3rem;
        }

        .match-list-section .section-title-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .match-list-section .section-title-wrapper h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin: 0;
        }

        .match-list-section .result-count {
            font-size: 0.88rem;
            color: var(--text-secondary);
            background: var(--primary-10);
            padding: 0.3rem 0.85rem;
            border-radius: 999px;
        }

        .match-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 1.25rem;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            cursor: pointer;
        }

        .match-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .match-card .match-thumb {
            flex-shrink: 0;
            width: 100px;
            height: 68px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--primary-10);
        }

        .match-card .match-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .match-card .match-info {
            flex: 1;
            min-width: 0;
        }

        .match-card .match-title {
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text);
            margin-bottom: 0.3rem;
            line-height: 1.4;
        }

        .match-card .match-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .match-card .match-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .match-card .match-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        .match-card .match-meta i {
            color: var(--primary);
            font-size: 0.72rem;
        }

        .match-card .match-score {
            flex-shrink: 0;
            text-align: center;
            min-width: 80px;
        }

        .match-card .match-score .score-value {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .match-card .match-score .score-label {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 0.2rem;
        }

        /* Stats summary section */
        .stats-summary-section {
            padding: 3rem 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .stats-summary-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 1.5rem;
        }

        .stats-summary-card {
            background: var(--primary-10);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            height: 100%;
            transition: transform var(--transition), box-shadow var(--transition);
        }

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

        .stats-summary-card .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.3rem;
            letter-spacing: 1px;
        }

        .stats-summary-card .stat-label {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 0.25rem;
        }

        .stats-summary-card .stat-note {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* Related section */
        .related-section {
            padding: 3rem 0;
        }

        .related-section .section-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 1.25rem;
        }

        .related-link-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 1.1rem 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            height: 100%;
        }

        .related-link-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .related-link-card i {
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .related-link-card .related-text {
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text);
            line-height: 1.4;
        }

        .related-link-card:hover .related-text {
            color: var(--primary);
        }

        /* CTA section */
        .cta-section {
            padding: 3.5rem 0;
            background: linear-gradient(140deg, var(--primary-light) 0%, var(--bg-white) 70%);
            border-top: 1px solid var(--border-light);
        }

        .cta-section .cta-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 2.25rem 2rem;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .cta-section .cta-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.6rem;
        }

        .cta-section .cta-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 1.25rem;
            line-height: 1.7;
        }

        .cta-section .cta-form .form-control {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.65rem 1rem;
            font-size: 0.92rem;
            color: var(--text);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .cta-section .cta-form .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91, 155, 213, 0.12);
        }

        .cta-section .btn-subscribe {
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.65rem 1.5rem;
            font-weight: 600;
            font-size: 0.92rem;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }

        .cta-section .btn-subscribe:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* Bottom links */
        .bottom-links-section {
            padding: 2rem 0 3rem;
            background: var(--bg);
        }

        .bottom-links-section .bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.25rem;
            align-items: center;
        }

        .bottom-links-section .bottom-links a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition);
        }

        .bottom-links-section .bottom-links a:hover {
            color: var(--primary);
        }

        /* Footer */
        .site-footer {
            background: #1F2937;
            color: #D1D5DB;
            padding: 3.5rem 0 1.5rem;
        }

        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.3rem;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .site-footer .footer-brand .brand-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .site-footer p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #9CA3AF;
            margin-bottom: 1rem;
        }

        .site-footer .footer-title {
            font-weight: 600;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }

        .site-footer .footer-link {
            display: block;
            color: #9CA3AF;
            font-size: 0.88rem;
            margin-bottom: 0.55rem;
            transition: color var(--transition);
        }

        .site-footer .footer-link:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .site-footer .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2.5rem;
            padding-top: 1.25rem;
            font-size: 0.82rem;
            color: #6B7280;
            text-align: center;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                margin-top: 0.5rem;
                padding: 0.75rem;
            }
            .site-header .navbar-nav .nav-link {
                padding: 0.5rem 0.75rem;
            }
            .page-header-section h1 {
                font-size: 1.85rem;
            }
            .match-card {
                flex-wrap: wrap;
                gap: 0.75rem;
            }
            .match-card .match-thumb {
                width: 80px;
                height: 54px;
            }
            .match-card .match-score {
                min-width: auto;
                margin-left: auto;
            }
        }

        @media (max-width: 767.98px) {
            .page-header-section {
                padding: 2rem 0 1.75rem;
            }
            .page-header-section h1 {
                font-size: 1.6rem;
            }
            .page-header-section .page-intro {
                font-size: 0.95rem;
            }
            .filter-bar {
                padding: 1rem;
                margin-top: 1.25rem;
                margin-bottom: 1.25rem;
            }
            .match-card {
                padding: 1rem;
                flex-direction: column;
                align-items: flex-start;
            }
            .match-card .match-thumb {
                width: 100%;
                height: 140px;
            }
            .match-card .match-score {
                margin-left: 0;
                text-align: left;
                display: flex;
                align-items: center;
                gap: 0.5rem;
            }
            .match-card .match-score .score-value {
                font-size: 1.2rem;
            }
            .stats-summary-card {
                margin-bottom: 0.75rem;
            }
            .cta-section .cta-card {
                padding: 1.5rem 1.25rem;
            }
            .site-footer {
                padding: 2.5rem 0 1rem;
            }
        }

        @media (max-width: 575.98px) {
            .page-header-section h1 {
                font-size: 1.45rem;
            }
            .filter-bar .row>div {
                margin-bottom: 0.75rem;
            }
            .match-list-section .section-title-wrapper h2 {
                font-size: 1.25rem;
            }
            .stats-summary-section .section-title,
            .related-section .section-title {
                font-size: 1.25rem;
            }
            .cta-section .cta-title {
                font-size: 1.15rem;
            }
            .bottom-links-section .bottom-links {
                gap: 0.75rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #5B9BD5;
            --primary-dark: #3D7EB8;
            --primary-light: #E8F2FB;
            --primary-10: #F0F7FD;
            --accent: #F2A93B;
            --accent-dark: #D88C1F;
            --accent-light: #FEF4E4;
            --bg: #F7FAFC;
            --bg-white: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #9CA3AF;
            --border: #E5EAF0;
            --border-light: #EEF2F6;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.10);
            --shadow-hover: 0 12px 28px rgba(15, 23, 42, 0.12);
            --transition: 0.22s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }
        * {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition), text-decoration-color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-decoration-color: var(--primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }

        /* Header / Nav */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 4px rgba(15, 23, 42, 0.03);
        }
        .site-header .navbar {
            padding: 0.65rem 0;
        }
        .site-header .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .site-header .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .site-header .navbar-brand:hover {
            color: var(--text);
            text-decoration: none;
        }
        .site-header .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 0.6rem 1rem;
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
        }
        .site-header .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-10);
            text-decoration: none;
        }
        .site-header .navbar-nav .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .lang-switch .lang-btn {
            background: none;
            border: none;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            cursor: pointer;
            transition: background var(--transition), color var(--transition);
        }
        .lang-switch .lang-btn.active {
            background: var(--primary);
            color: #fff;
        }
        .lang-switch .lang-btn:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .navbar-toggler {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.35rem 0.5rem;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px var(--primary-light);
        }
        .site-header .navbar-collapse {
            background: var(--bg-white);
            margin-top: 0.5rem;
            padding: 1rem;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }

        /* Page Header for Category */
        .page-header {
            background: linear-gradient(135deg, var(--primary-10) 0%, #F4F9FD 50%, var(--bg) 100%);
            padding: 2.5rem 0 2rem;
            position: relative;
            overflow: hidden;
        }
        .page-header::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -40px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(91,155,213,0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-header .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-wrap {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .breadcrumb-wrap a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition);
        }
        .breadcrumb-wrap a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumb-wrap .separator {
            color: var(--text-light);
            font-size: 0.8rem;
        }
        .breadcrumb-wrap .current {
            color: var(--primary);
            font-weight: 500;
        }
        .page-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 0.6rem;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }
        .page-intro {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 800px;
            line-height: 1.8;
            margin: 0;
        }

        /* Filter Toolbar */
        .filter-toolbar {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            display: flex;
            align-items: center;
            gap: 1.25rem;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
            margin: 1.5rem 0 2rem;
        }
        .filter-toolbar .filter-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            white-space: nowrap;
        }
        .filter-toolbar .form-select {
            background-color: var(--bg);
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.5rem 2rem 0.5rem 1rem;
            font-size: 0.9rem;
            color: var(--text);
            min-width: 160px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .filter-toolbar .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91,155,213,0.15);
            outline: none;
        }
        .filter-toolbar .btn-group {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .filter-toolbar .btn-filter {
            background: var(--bg);
            border: 1.5px solid var(--border);
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            padding: 0.5rem 1.1rem;
            border-radius: 999px;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-toolbar .btn-filter:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-10);
        }
        .filter-toolbar .btn-filter.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        /* Guide List Cards */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .guide-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 1rem;
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .guide-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            text-decoration: none;
        }
        .guide-card .card-thumb {
            flex-shrink: 0;
            width: 160px;
            height: 100px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--primary-10);
        }
        .guide-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .guide-card .card-content {
            flex-grow: 1;
            min-width: 0;
        }
        .guide-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.7rem;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 0.4rem;
            letter-spacing: 0.5px;
        }
        .guide-card .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 0.35rem;
            line-height: 1.4;
            transition: color var(--transition);
        }
        .guide-card:hover .card-title {
            color: var(--primary);
            text-decoration: none;
        }
        .guide-card .card-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0 0 0.5rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-card .card-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .guide-card .card-meta i {
            font-size: 0.75rem;
            margin-right: 0.25rem;
        }

        /* Section Common */
        .section-block {
            padding: 2.5rem 0;
        }
        .section-block.light-bg {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .section-title {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 1.5rem;
            letter-spacing: 0.3px;
            position: relative;
            padding-left: 1rem;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 3px;
        }

        /* Data Summary Cards */
        .data-summary-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }
        .data-summary-card {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 1.5rem 1.25rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .data-summary-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .data-summary-card .stat-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-10);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 0.6rem;
            color: var(--primary);
            font-size: 1.1rem;
        }
        .data-summary-card .stat-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.2;
            margin-bottom: 0.3rem;
        }
        .data-summary-card .stat-value.accent {
            color: var(--accent);
        }
        .data-summary-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Related Recommendations */
        .related-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .related-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        .related-item:hover {
            box-shadow: var(--shadow-sm);
            border-color: var(--primary-light);
            text-decoration: none;
        }
        .related-item .related-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-10);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.9rem;
        }
        .related-item .related-text {
            flex-grow: 1;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            transition: color var(--transition);
        }
        .related-item:hover .related-text {
            color: var(--primary);
            text-decoration: none;
        }
        .related-item .related-arrow {
            color: var(--text-light);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        /* FAQ Accordion */
        .faq-wrap .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            overflow: hidden;
            margin-bottom: 0.75rem;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }
        .faq-wrap .accordion-button {
            background: var(--bg-white);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            padding: 1.1rem 1.5rem;
            border: none;
            border-radius: var(--radius-md) !important;
            box-shadow: none !important;
            transition: background var(--transition), color var(--transition);
        }
        .faq-wrap .accordion-button:not(.collapsed) {
            background: var(--primary-10);
            color: var(--primary);
        }
        .faq-wrap .accordion-button::after {
            background-image: none;
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            width: auto;
            height: auto;
            color: var(--text-secondary);
            font-size: 0.8rem;
            transition: transform var(--transition);
        }
        .faq-wrap .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-wrap .accordion-body {
            background: var(--bg);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            padding: 1.1rem 1.5rem;
        }

        /* CTA Form Compact */
        .cta-compact-card {
            background: linear-gradient(135deg, var(--primary-light) 0%, #D6E8F7 100%);
            border-radius: var(--radius-lg);
            padding: 2rem 2.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            flex-wrap: wrap;
            box-shadow: var(--shadow-md);
            border: 1px solid rgba(91,155,213,0.2);
        }
        .cta-compact-card .cta-text {
            flex: 1;
            min-width: 200px;
        }
        .cta-compact-card .cta-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 0.3rem;
        }
        .cta-compact-card .cta-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }
        .cta-compact-card .cta-form {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .cta-compact-card .form-control {
            background: var(--bg-white);
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1rem;
            font-size: 0.9rem;
            min-width: 220px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .cta-compact-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(91,155,213,0.15);
            outline: none;
        }
        .cta-compact-card .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.5rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }
        .cta-compact-card .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* Bottom Links */
        .bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            align-items: center;
            padding: 1.5rem 0;
        }
        .bottom-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .bottom-links a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .bottom-links .divider-dot {
            color: var(--text-light);
            font-size: 0.5rem;
        }

        /* Footer */
        .site-footer {
            background: #1F2937;
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.25rem;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
        }
        .site-footer .footer-brand .brand-icon {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .site-footer p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin: 0 0 0.5rem;
        }
        .site-footer .footer-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-link {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            text-decoration: none;
            padding: 0.25rem 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        .site-footer .footer-link:hover {
            color: #fff;
            padding-left: 0.3rem;
            text-decoration: none;
        }
        .site-footer .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding-top: 1.25rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
        }

        /* Responsive */
        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                padding: 0.75rem;
                margin-top: 0.5rem;
            }
            .page-title {
                font-size: 1.7rem;
            }
            .page-intro {
                font-size: 0.95rem;
            }
            .filter-toolbar {
                padding: 1rem 1.25rem;
                gap: 1rem;
            }
            .data-summary-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-compact-card {
                padding: 1.5rem;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-compact-card .cta-form {
                width: 100%;
            }
            .cta-compact-card .form-control {
                flex: 1;
                min-width: 0;
            }
        }
        @media (max-width: 767.98px) {
            .page-header {
                padding: 1.5rem 0 1.5rem;
            }
            .page-title {
                font-size: 1.4rem;
            }
            .guide-card {
                flex-direction: column;
                gap: 0.75rem;
                padding: 0.85rem;
            }
            .guide-card .card-thumb {
                width: 100%;
                height: 160px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
            .filter-toolbar .form-select {
                width: 100%;
                min-width: 0;
            }
            .filter-toolbar .btn-group {
                width: 100%;
                flex-wrap: wrap;
            }
            .data-summary-grid {
                grid-template-columns: 1fr;
                gap: 0.75rem;
            }
            .data-summary-card {
                padding: 1.1rem;
            }
            .data-summary-card .stat-value {
                font-size: 1.4rem;
            }
            .cta-compact-card {
                padding: 1.25rem;
            }
            .cta-compact-card .cta-form {
                flex-direction: column;
                width: 100%;
            }
            .cta-compact-card .form-control {
                width: 100%;
                min-width: 0;
            }
            .cta-compact-card .btn-primary-custom {
                width: 100%;
            }
            .bottom-links {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .bottom-links .divider-dot {
                display: none;
            }
            .section-block {
                padding: 1.75rem 0;
            }
            .section-title {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 575.98px) {
            .site-header .navbar-brand {
                font-size: 1.15rem;
            }
            .site-header .navbar-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.85rem;
            }
            .guide-card .card-thumb {
                height: 140px;
            }
            .guide-card .card-title {
                font-size: 0.95rem;
            }
            .guide-card .card-summary {
                font-size: 0.85rem;
                -webkit-line-clamp: 3;
            }
            .faq-wrap .accordion-button {
                font-size: 0.9rem;
                padding: 0.9rem 1rem;
            }
            .faq-wrap .accordion-body {
                font-size: 0.85rem;
                padding: 0.9rem 1rem;
            }
            .page-intro {
                font-size: 0.9rem;
            }
            .filter-toolbar .btn-filter {
                font-size: 0.8rem;
                padding: 0.4rem 0.9rem;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}