/* roulang page: index */
:root {
            --primary: #0F7A6E;
            --primary-dark: #0B5F56;
            --primary-light: #E6F2F0;
            --accent: #FF6B35;
            --accent-dark: #D94F1D;
            --charcoal: #1C1C1C;
            --bg: #FAFAF7;
            --surface: #FFFFFF;
            --border: #E5E2DC;
            --divider: #EDEAE4;
            --text-body: #3A3A3A;
            --text-muted: #6E6E6E;
            --text-light: #FAFAFA;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(28, 28, 28, 0.06);
            --shadow-md: 0 6px 16px rgba(28, 28, 28, 0.10);
            --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.14);
            --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --container-max: 1180px;
            --header-height: 64px;
            --nav-height: 56px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg);
            line-height: 1.8;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            text-decoration: none;
            color: var(--primary);
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid rgba(15, 122, 110, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button, input, select, textarea {
            font-family: var(--font-sans);
            font-size: 14px;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--divider);
            transition: box-shadow var(--transition-base);
        }
        .site-header.is-scrolled {
            box-shadow: 0 2px 16px rgba(28, 28, 28, 0.10);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            flex-wrap: wrap;
            gap: 8px;
        }
        .brand-row {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }
        .logo-text a {
            color: var(--charcoal);
            text-decoration: none;
        }
        .logo-text a:hover {
            color: var(--primary);
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-toggle {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition-fast);
        }
        .search-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .search-box {
            display: none;
            align-items: center;
            gap: 6px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }
        .search-box.active {
            display: flex;
        }
        .search-box input {
            border: none;
            outline: none;
            width: 180px;
            font-size: 13px;
            color: var(--text-body);
            background: transparent;
        }
        .search-box input:focus {
            outline: none;
        }
        .search-box .search-close {
            color: var(--text-muted);
            font-size: 12px;
            cursor: pointer;
            padding: 0 4px;
        }
        .hot-tags {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .hot-tag {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 20px;
            background: #F0EFEB;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .hot-tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-bar {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .nav-list::-webkit-scrollbar {
            display: none;
        }
        .nav-list li {
            flex-shrink: 0;
        }
        .nav-list a {
            display: block;
            padding: 12px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .nav-list a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .hamburger {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--surface);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
        }
        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--charcoal);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            background: var(--surface);
            border-top: 1px solid var(--divider);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 20px;
            font-size: 15px;
            color: var(--text-body);
            border-bottom: 1px solid var(--divider);
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .mobile-menu a.active {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Main ===== */
        main {
            flex: 1;
            padding-bottom: 0;
        }
        section {
            padding: 64px 0;
        }
        section:nth-child(even):not(.hero-section):not(.cta-banner-section) {
            background: #F7F6F2;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 600;
            color: var(--charcoal);
            line-height: 1.3;
            letter-spacing: -0.3px;
            margin-bottom: 10px;
        }
        .section-head h2::after {
            content: '';
            display: block;
            width: 44px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin-top: 8px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 720px;
        }
        .section-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        /* ===== Hero ===== */
        .hero-section {
            padding: 0;
            background: var(--charcoal);
            position: relative;
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: flex-end;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(28,28,28,0.55) 0%, rgba(28,28,28,0.75) 55%, rgba(28,28,28,0.9) 100%);
        }
        .hero-overlay {
            position: relative;
            z-index: 1;
            width: 100%;
            padding: 80px 0 48px;
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: flex-end;
        }
        .hero-text {
            color: #fff;
        }
        .hero-text h1 {
            font-size: 38px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.35);
        }
        .hero-text .hero-subtitle {
            font-size: 15px;
            color: rgba(255,255,255,0.88);
            line-height: 1.9;
            max-width: 620px;
            margin-bottom: 24px;
            text-shadow: 0 1px 6px rgba(0,0,0,0.3);
        }
        .hero-buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .hero-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .hero-badge {
            font-size: 12px;
            padding: 5px 14px;
            border-radius: 20px;
            background: rgba(255,255,255,0.18);
            color: #fff;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.2);
        }
        .hero-side-card {
            background: rgba(255,255,255,0.96);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-lg);
            width: 100%;
            max-width: 340px;
            aspect-ratio: 9/16;
            display: flex;
            flex-direction: column;
            gap: 14px;
            justify-self: end;
        }
        .hero-side-card .card-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .hero-side-card .match-box {
            background: #F7F6F2;
            border-radius: var(--radius-md);
            padding: 16px 14px;
            text-align: center;
        }
        .hero-side-card .match-teams {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-weight: 600;
            font-size: 14px;
            color: var(--charcoal);
        }
        .hero-side-card .match-score {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 1px;
            margin: 8px 0 4px;
        }
        .hero-side-card .match-status {
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
        }
        .hero-side-card .data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
            padding: 6px 0;
            border-bottom: 1px dashed var(--border);
        }
        .hero-side-card .data-row:last-child {
            border-bottom: none;
        }
        .hero-side-card .data-row span:last-child {
            font-weight: 600;
            color: var(--charcoal);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 24px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            text-decoration: none;
            line-height: 1.4;
            letter-spacing: 0.2px;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(15, 122, 110, 0.3);
        }
        .btn-secondary {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
        }
        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            padding: 4px 0;
            transition: all var(--transition-fast);
        }
        .btn-text .arrow {
            transition: transform var(--transition-fast);
        }
        .btn-text:hover {
            color: var(--primary-dark);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .btn-text:hover .arrow {
            transform: translateX(4px);
        }

        /* ===== Cards / Grids ===== */
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.3);
            transform: translateY(-3px);
        }
        .card .card-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            flex-shrink: 0;
        }
        .card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--charcoal);
            line-height: 1.4;
        }
        .card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .card .card-tag {
            font-size: 12px;
            color: var(--primary);
            font-weight: 500;
        }

        /* Metric card */
        .metric-card {
            text-align: center;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
        }
        .metric-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .metric-card .metric-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .metric-card .metric-label {
            font-size: 13px;
            color: var(--text-muted);
        }
        .metric-card .metric-trend {
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
        }
        .metric-card .metric-trend.down {
            color: var(--accent);
        }

        /* Check list */
        .check-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }
        .check-list li .check-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* Badge list */
        .badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .badge-item {
            font-size: 13px;
            padding: 8px 18px;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 500;
            border: 1px solid rgba(15, 122, 110, 0.2);
            transition: all var(--transition-fast);
        }
        .badge-item:hover {
            background: var(--primary);
            color: #fff;
        }
        .badge-item.outline {
            background: transparent;
            border: 1px dashed rgba(15, 122, 110, 0.4);
            color: var(--text-muted);
        }

        /* Compare panel */
        .compare-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .compare-col {
            padding: 16px;
            border-radius: var(--radius-md);
            background: #F7F6F2;
        }
        .compare-col.highlight {
            background: var(--primary-light);
            border: 1px solid rgba(15, 122, 110, 0.25);
        }
        .compare-col h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--charcoal);
        }
        .compare-col.highlight h4 {
            color: var(--primary);
        }
        .compare-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
            gap: 10px;
        }
        .compare-row:last-child {
            border-bottom: none;
        }
        .compare-row .label {
            color: var(--text-muted);
        }
        .compare-row .value {
            font-weight: 600;
            color: var(--charcoal);
            text-align: right;
        }
        .compare-col.highlight .value {
            color: var(--primary);
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 32px;
            border-left: 2px dashed var(--primary);
            margin-left: 8px;
        }
        .timeline-item {
            position: relative;
            padding: 0 0 28px 16px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -34px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--surface);
            box-shadow: 0 0 0 2px var(--primary);
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item .year {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.5px;
        }
        .timeline-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            margin: 4px 0 4px;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* News list */
        .news-primary {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }
        .news-primary:hover {
            box-shadow: var(--shadow-md);
        }
        .news-primary img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 220px;
        }
        .news-primary .news-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .news-primary .news-date {
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-primary h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--charcoal);
            line-height: 1.4;
        }
        .news-primary p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .news-card .news-date {
            font-size: 12px;
            color: var(--text-muted);
        }
        .news-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            line-height: 1.4;
        }
        .news-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* Brand intro */
        .brand-intro-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }
        .brand-intro-block img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .brand-intro-block .brand-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        /* League grid */
        .league-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }
        .league-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 14px;
            text-align: center;
            font-size: 14px;
            font-weight: 500;
            color: var(--charcoal);
            transition: all var(--transition-fast);
        }
        .league-card:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* Trust / partners */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .trust-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }
        .trust-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .trust-card .trust-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .trust-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 4px;
        }
        .trust-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Quick answers */
        .quick-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .quick-card {
            background: var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 18px;
            border: 1px solid rgba(15, 122, 110, 0.15);
        }
        .quick-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }
        .quick-card p {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: 0 0 0 1px var(--primary);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            cursor: pointer;
            background: transparent;
            width: 100%;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--charcoal);
            transition: all var(--transition-fast);
            border: none;
            border-radius: var(--radius-md);
        }
        .faq-question:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--primary);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            border-bottom: 1px solid var(--primary);
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        /* Form */
        .form-section {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }
        .form-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: flex-start;
        }
        .form-info h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 12px;
        }
        .form-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .form-info .form-point {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 13px;
            color: var(--text-body);
            margin-bottom: 8px;
        }
        .form-info .form-point .point-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            margin-top: 6px;
        }
        .form-fields {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-group label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
        }
        .form-group input,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-body);
            background: var(--surface);
            transition: all var(--transition-fast);
            outline: none;
        }
        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 122, 110, 0.12);
        }
        .form-submit {
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            align-self: flex-start;
            width: 40%;
        }
        .form-submit:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
        }
        .form-privacy {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* CTA banner */
        .cta-banner-section {
            padding: 32px 0;
            background: var(--charcoal);
        }
        .cta-banner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .cta-banner h3 {
            font-size: 22px;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
        }
        .cta-banner .btn {
            flex-shrink: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--charcoal);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 32px;
            padding-bottom: 32px;
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 20px;
        }
        .footer-brand .logo-text a {
            color: #fff;
        }
        .footer-brand p {
            font-size: 13px;
            color: rgba(255,255,255,0.55);
            line-height: 1.7;
            margin-top: 12px;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: rgba(255,255,255,0.55);
            transition: all var(--transition-fast);
        }
        .footer-col ul a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 16px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 12px;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.4);
            font-size: 12px;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom .sep {
            margin: 0 6px;
            color: rgba(255,255,255,0.25);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .container {
                padding: 0 20px;
            }
            .hero-content {
                grid-template-columns: 1fr 280px;
                gap: 28px;
            }
            .grid-4, .trust-grid, .quick-row, .league-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 992px) {
            section {
                padding: 48px 0;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .hero-content {
                grid-template-columns: 1fr;
                grid-template-rows: auto auto;
                gap: 24px;
            }
            .hero-side-card {
                max-width: 280px;
                justify-self: start;
                aspect-ratio: auto;
                min-height: 300px;
            }
            .hero-text h1 {
                font-size: 30px;
            }
            .form-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .form-submit {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            .header-main {
                padding: 8px 0;
            }
            .nav-bar {
                padding: 0;
            }
            .nav-list {
                gap: 0;
            }
            .nav-list a {
                padding: 10px 12px;
                font-size: 13px;
            }
            .hamburger {
                display: flex;
            }
            .nav-list.desktop-only {
                display: none;
            }
            .hot-tags {
                display: none;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .grid-4, .grid-3, .grid-2,
            .trust-grid, .quick-row, .league-grid,
            .news-grid {
                grid-template-columns: 1fr;
            }
            .compare-panel {
                grid-template-columns: 1fr;
            }
            .news-primary {
                grid-template-columns: 1fr;
            }
            .news-primary img {
                min-height: 180px;
                max-height: 220px;
                object-fit: cover;
            }
            .brand-intro-block {
                grid-template-columns: 1fr;
            }
            .hero-text h1 {
                font-size: 26px;
            }
            .hero-text .hero-subtitle {
                font-size: 14px;
            }
            .hero-overlay {
                padding: 40px 0 24px;
            }
            .hero-section {
                min-height: auto;
            }
            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-banner h3 {
                font-size: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .form-section {
                padding: 20px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            section {
                padding: 36px 0;
            }
            .hero-text h1 {
                font-size: 22px;
                line-height: 1.35;
            }
            .hero-text .hero-subtitle {
                font-size: 13px;
                line-height: 1.7;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }
            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }
            .hero-buttons .btn {
                width: 100%;
            }
            .hero-side-card {
                max-width: 100%;
                min-height: auto;
                aspect-ratio: auto;
            }
            .metric-card .metric-num {
                font-size: 26px;
            }
            .section-head h2 {
                font-size: 20px;
            }
            .card {
                padding: 18px;
            }
            .logo-text {
                font-size: 17px;
            }
            .search-box input {
                width: 120px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #0F7A6E;
            --primary-dark: #0B5F56;
            --primary-light: #E6F2F0;
            --accent: #FF6B35;
            --accent-dark: #D94F1D;
            --charcoal: #1C1C1C;
            --bg: #FAFAF7;
            --surface: #FFFFFF;
            --border: #E5E2DC;
            --divider: #EDEAE4;
            --text-body: #3A3A3A;
            --text-muted: #6E6E6E;
            --text-light: #FAFAFA;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(28, 28, 28, 0.06);
            --shadow-md: 0 6px 16px rgba(28, 28, 28, 0.10);
            --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.14);
            --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --container-max: 1180px;
            --header-height: 64px;
            --nav-height: 56px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg);
            line-height: 1.8;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid rgba(15, 122, 110, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: var(--font-sans);
            font-size: 14px;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--divider);
            transition: box-shadow var(--transition-base);
        }
        .site-header.is-scrolled {
            box-shadow: 0 2px 16px rgba(28, 28, 28, 0.10);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            flex-wrap: wrap;
            gap: 8px;
        }
        .brand-row {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }
        .logo-text a {
            color: var(--charcoal);
            text-decoration: none;
        }
        .logo-text a:hover {
            color: var(--primary);
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .search-toggle {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition-fast);
        }
        .search-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .search-box {
            display: none;
            align-items: center;
            gap: 6px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }
        .search-box.active {
            display: flex;
        }
        .search-box input {
            border: none;
            outline: none;
            width: 180px;
            font-size: 13px;
            color: var(--text-body);
            background: transparent;
        }
        .search-box input:focus {
            outline: none;
        }
        .search-box .search-close {
            color: var(--text-muted);
            font-size: 12px;
            cursor: pointer;
            padding: 0 4px;
        }
        .hot-tag {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 20px;
            background: #F0EFEB;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
            display: inline-block;
        }
        .hot-tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-bar {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 0;
        }
        .nav-list {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 28px;
            align-items: center;
            height: var(--nav-height);
        }
        .nav-list li a {
            font-size: 15px;
            color: var(--text-body);
            font-weight: 500;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            display: inline-block;
        }
        .nav-list li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 36px;
            height: 36px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            background: transparent;
        }
        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--charcoal);
            border-radius: 2px;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 12px 24px;
            gap: 4px;
        }
        .mobile-menu.active {
            display: flex;
        }
        .mobile-menu a {
            font-size: 15px;
            color: var(--text-body);
            padding: 8px 0;
            border-bottom: 1px solid var(--divider);
            font-weight: 500;
        }
        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 700;
        }
        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 28px 0 0;
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            margin: 0 8px;
            color: var(--border);
        }
        /* ===== Category Header ===== */
        .category-header {
            padding: 24px 0 36px;
        }
        .category-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--charcoal);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin: 0 0 12px;
            position: relative;
            padding-left: 16px;
        }
        .category-header h1::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        .category-header p {
            font-size: 16px;
            color: var(--text-body);
            max-width: 760px;
            margin: 0;
            line-height: 1.9;
        }
        /* ===== Stats Badges ===== */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            padding: 0 0 40px;
        }
        .stat-badge {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 14px 20px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .stat-badge .num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }
        .stat-badge .lbl {
            font-size: 13px;
            color: var(--text-muted);
        }
        /* ===== Section ===== */
        .section {
            padding: 48px 0;
        }
        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }
        .section-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--charcoal);
            margin: 0 0 28px;
            padding-left: 14px;
            position: relative;
            letter-spacing: -0.3px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            background: var(--primary);
            border-radius: 2px;
        }
        /* ===== Article Cards ===== */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.25);
            transform: translateY(-3px);
        }
        .article-card .thumb {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--divider);
        }
        .article-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .article-card:hover .thumb img {
            transform: scale(1.03);
        }
        .article-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .article-card .card-meta {
            display: flex;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            align-items: center;
        }
        .article-card .tag {
            font-size: 11px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 20px;
            font-weight: 500;
        }
        .article-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--charcoal);
            margin: 0;
            line-height: 1.5;
            letter-spacing: -0.2px;
        }
        .article-card .excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
            flex: 1;
        }
        .article-card .read-more {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
            align-self: flex-start;
        }
        .article-card .read-more:hover {
            color: var(--primary-dark);
            gap: 8px;
        }
        /* ===== Index Explanation ===== */
        .index-explanation {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .index-explanation .text-block h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--charcoal);
            margin: 0 0 16px;
        }
        .index-explanation .text-block p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
            margin: 0 0 12px;
        }
        .index-explanation .visual-block {
            background: var(--primary-light);
            border-radius: var(--radius-xl);
            padding: 32px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .index-explanation .visual-block .big-num {
            font-size: 56px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }
        .index-explanation .visual-block .hint {
            font-size: 14px;
            color: var(--text-muted);
        }
        /* ===== Trend List ===== */
        .trend-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .trend-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            transition: all var(--transition-fast);
        }
        .trend-item:hover {
            border-color: rgba(15, 122, 110, 0.25);
            box-shadow: var(--shadow-sm);
        }
        .trend-item .indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .trend-item .indicator.up { background: var(--primary); }
        .trend-item .indicator.down { background: var(--accent); }
        .trend-item .indicator.flat { background: #B0AEA8; }
        .trend-item .t-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--charcoal);
            flex: 1;
        }
        .trend-item .t-val {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
        }
        .trend-item .t-change {
            font-size: 13px;
            font-weight: 600;
        }
        .trend-item .t-change.pos { color: var(--primary); }
        .trend-item .t-change.neg { color: var(--accent); }
        /* ===== More Link ===== */
        .more-link-wrap {
            padding: 8px 0 0;
        }
        .more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition-fast);
        }
        .more-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }
        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item[open] {
            border-color: rgba(15, 122, 110, 0.4);
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            color: var(--primary);
            font-weight: 400;
            transition: transform var(--transition-fast);
        }
        .faq-item[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-section .cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }
        .cta-section .cta-text p {
            font-size: 15px;
            color: rgba(255,255,255,0.85);
            margin: 0;
        }
        .cta-section .btn-accent {
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            white-space: nowrap;
            transition: all var(--transition-fast);
            display: inline-block;
        }
        .cta-section .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(255, 107, 53, 0.4);
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--charcoal);
            color: rgba(255,255,255,0.75);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.12);
        }
        .site-footer .footer-brand .logo-text a {
            color: #fff;
            font-size: 22px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 12px;
            max-width: 360px;
        }
        .site-footer .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-col ul a {
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-col ul a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255,255,255,0.55);
        }
        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.7);
            font-size: 13px;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255,255,255,0.35);
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .index-explanation {
                grid-template-columns: 1fr;
            }
            .nav-list {
                gap: 16px;
            }
            .nav-list li a {
                font-size: 14px;
                padding: 6px 10px;
            }
        }
        @media (max-width: 768px) {
            .header-main {
                padding: 8px 0;
            }
            .hot-tag {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-bar .nav-list {
                display: none;
            }
            .category-header h1 {
                font-size: 26px;
                padding-left: 12px;
            }
            .category-header h1::before {
                top: 6px;
                bottom: 6px;
                width: 3px;
            }
            .section {
                padding: 32px 0;
            }
            .section-title {
                font-size: 20px;
                padding-left: 12px;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 28px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .stats-row {
                gap: 10px;
            }
            .stat-badge {
                padding: 10px 14px;
                gap: 8px;
            }
            .stat-badge .num {
                font-size: 22px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-tools {
                gap: 6px;
            }
            .search-box input {
                width: 120px;
            }
            .category-header h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 18px;
            }
            .trend-item {
                flex-wrap: wrap;
                gap: 8px;
                padding: 10px 14px;
            }
            .trend-item .t-name {
                flex-basis: 60%;
            }
            .index-explanation .visual-block {
                padding: 20px;
            }
            .index-explanation .visual-block .big-num {
                font-size: 40px;
            }
        }

/* roulang page: category3 */
:root {
        --primary: #0F7A6E;
        --primary-dark: #0B5F56;
        --primary-light: #E6F2F0;
        --accent: #FF6B35;
        --accent-dark: #D94F1D;
        --charcoal: #1C1C1C;
        --bg: #FAFAF7;
        --surface: #FFFFFF;
        --border: #E5E2DC;
        --divider: #EDEAE4;
        --text-body: #3A3A3A;
        --text-muted: #6E6E6E;
        --text-light: #FAFAFA;
        --radius-sm: 8px;
        --radius-md: 10px;
        --radius-lg: 12px;
        --radius-xl: 16px;
        --shadow-sm: 0 2px 8px rgba(28, 28, 28, 0.06);
        --shadow-md: 0 6px 16px rgba(28, 28, 28, 0.10);
        --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.14);
        --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
        --transition-fast: 0.2s ease;
        --transition-base: 0.3s ease;
        --container-max: 1180px;
        --header-height: 64px;
        --nav-height: 56px;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    body {
        font-family: var(--font-sans);
        color: var(--text-body);
        background: var(--bg);
        line-height: 1.8;
        font-size: 15px;
        overflow-x: hidden;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }
    a {
        text-decoration: none;
        color: var(--primary);
        transition: color var(--transition-fast);
    }
    a:hover {
        color: var(--primary-dark);
    }
    a:focus-visible {
        outline: 3px solid rgba(15, 122, 110, 0.35);
        outline-offset: 2px;
        border-radius: 4px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button, input, select, textarea {
        font-family: var(--font-sans);
        font-size: 14px;
    }
    button {
        cursor: pointer;
        border: none;
        background: none;
        transition: all var(--transition-fast);
    }
    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 24px;
    }
    /* Header / Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.96);
        border-bottom: 1px solid var(--divider);
        transition: box-shadow var(--transition-base);
    }
    .site-header.is-scrolled {
        box-shadow: 0 2px 16px rgba(28, 28, 28, 0.10);
    }
    .header-main {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 10px 0;
        flex-wrap: wrap;
        gap: 8px;
    }
    .brand-row {
        display: flex;
        align-items: center;
        gap: 12px;
        min-width: 0;
    }
    .logo-mark {
        width: 36px;
        height: 36px;
        background: var(--primary);
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-weight: 700;
        font-size: 16px;
        flex-shrink: 0;
        letter-spacing: -0.5px;
    }
    .logo-text {
        font-size: 20px;
        font-weight: 700;
        color: var(--charcoal);
        letter-spacing: -0.3px;
        line-height: 1.2;
    }
    .logo-text a {
        color: var(--charcoal);
        text-decoration: none;
    }
    .logo-text a:hover {
        color: var(--primary);
    }
    .header-tools {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .search-toggle {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: transparent;
        border: 1px solid var(--border);
        color: var(--text-muted);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        transition: all var(--transition-fast);
    }
    .search-toggle:hover {
        border-color: var(--primary);
        color: var(--primary);
        background: var(--primary-light);
    }
    .search-box {
        display: none;
        align-items: center;
        gap: 6px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        padding: 6px 10px;
    }
    .search-box.active {
        display: flex;
    }
    .search-box input {
        border: none;
        outline: none;
        width: 180px;
        font-size: 13px;
        color: var(--text-body);
        background: transparent;
    }
    .search-box input:focus {
        outline: none;
    }
    .search-box .search-close {
        color: var(--text-muted);
        font-size: 12px;
        cursor: pointer;
        padding: 0 4px;
    }
    .hot-tag {
        font-size: 12px;
        padding: 4px 10px;
        border-radius: 20px;
        background: #F0EFEB;
        color: var(--text-muted);
        transition: all var(--transition-fast);
        white-space: nowrap;
    }
    .hot-tag:hover {
        background: var(--primary-light);
        color: var(--primary);
    }
    .nav-bar {
        background: var(--surface);
        border-top: 1px solid var(--divider);
        padding: 8px 0;
    }
    .nav-list {
        display: flex;
        align-items: center;
        gap: 28px;
        list-style: none;
        flex-wrap: wrap;
    }
    .nav-list a {
        color: var(--text-body);
        font-size: 15px;
        font-weight: 500;
        padding: 6px 12px;
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
        position: relative;
    }
    .nav-list a:hover {
        color: var(--primary);
        background: var(--primary-light);
    }
    .nav-list a.active {
        background: var(--primary);
        color: #fff;
        font-weight: 600;
    }
    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        width: 36px;
        height: 36px;
        padding: 8px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--border);
        background: var(--surface);
    }
    .hamburger span {
        display: block;
        width: 100%;
        height: 2px;
        background: var(--charcoal);
        border-radius: 2px;
        transition: all var(--transition-fast);
    }
    .hamburger:hover {
        border-color: var(--primary);
        background: var(--primary-light);
    }
    .mobile-menu {
        display: none;
        background: var(--surface);
        border-top: 1px solid var(--divider);
        padding: 12px 24px;
        flex-direction: column;
        gap: 4px;
    }
    .mobile-menu a {
        padding: 10px 12px;
        border-radius: var(--radius-sm);
        color: var(--text-body);
        font-size: 15px;
        font-weight: 500;
        transition: all var(--transition-fast);
    }
    .mobile-menu a.active {
        background: var(--primary);
        color: #fff;
    }
    .mobile-menu a:hover {
        background: var(--primary-light);
        color: var(--primary);
    }
    /* Breadcrumb */
    .breadcrumb-section {
        padding: 20px 0 12px;
    }
    .breadcrumb {
        font-size: 13px;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .breadcrumb a {
        color: var(--text-muted);
        transition: color var(--transition-fast);
    }
    .breadcrumb a:hover {
        color: var(--primary);
    }
    .breadcrumb .sep {
        color: var(--border);
    }
    .breadcrumb .current {
        color: var(--text-body);
        font-weight: 500;
    }
    /* Page Header */
    .page-header {
        padding: 24px 0 36px;
        border-bottom: 1px solid var(--divider);
        margin-bottom: 48px;
    }
    .page-header h1 {
        font-size: 36px;
        font-weight: 700;
        color: var(--charcoal);
        letter-spacing: -0.5px;
        line-height: 1.25;
        margin-bottom: 12px;
        position: relative;
        padding-bottom: 14px;
    }
    .page-header h1::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 56px;
        height: 4px;
        background: var(--primary);
        border-radius: 2px;
    }
    .page-header .subtitle {
        font-size: 16px;
        color: var(--text-muted);
        max-width: 700px;
        line-height: 1.8;
    }
    /* Stats badges */
    .stats-badge-row {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
        margin-bottom: 56px;
    }
    .stat-badge {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 20px 16px;
        text-align: center;
        box-shadow: var(--shadow-sm);
        transition: all var(--transition-fast);
    }
    .stat-badge:hover {
        box-shadow: var(--shadow-md);
        border-color: rgba(15, 122, 110, 0.3);
        transform: translateY(-2px);
    }
    .stat-badge .number {
        font-size: 28px;
        font-weight: 700;
        color: var(--primary);
        letter-spacing: -0.5px;
        line-height: 1.2;
    }
    .stat-badge .label {
        font-size: 13px;
        color: var(--text-muted);
        margin-top: 4px;
    }
    /* Section titles */
    .section-title {
        font-size: 26px;
        font-weight: 600;
        color: var(--charcoal);
        letter-spacing: -0.3px;
        line-height: 1.35;
        margin-bottom: 8px;
        position: relative;
        padding-left: 16px;
    }
    .section-title::before {
        content: '';
        position: absolute;
        left: 0;
        top: 6px;
        bottom: 6px;
        width: 4px;
        background: var(--primary);
        border-radius: 2px;
    }
    .section-subtitle {
        font-size: 15px;
        color: var(--text-muted);
        margin-bottom: 28px;
        max-width: 650px;
    }
    /* Section blocks */
    .section-block {
        margin-bottom: 64px;
    }
    /* Service cards grid */
    .service-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .service-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: all var(--transition-fast);
        display: flex;
        flex-direction: column;
    }
    .service-card:hover {
        box-shadow: var(--shadow-md);
        border-color: rgba(15, 122, 110, 0.3);
        transform: translateY(-4px);
    }
    .service-card .card-img {
        aspect-ratio: 16/9;
        overflow: hidden;
        background: var(--primary-light);
    }
    .service-card .card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--transition-base);
    }
    .service-card:hover .card-img img {
        transform: scale(1.05);
    }
    .service-card .card-body {
        padding: 20px 18px;
        display: flex;
        flex-direction: column;
        flex: 1;
        gap: 8px;
    }
    .service-card .card-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
        margin-bottom: 4px;
    }
    .service-card .tag {
        font-size: 11px;
        padding: 3px 10px;
        border-radius: 20px;
        background: var(--primary-light);
        color: var(--primary);
        font-weight: 500;
    }
    .service-card .tag.accent-tag {
        background: #FFF0E8;
        color: var(--accent);
    }
    .service-card h3 {
        font-size: 18px;
        font-weight: 600;
        color: var(--charcoal);
        line-height: 1.4;
    }
    .service-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        flex: 1;
    }
    .service-card .card-link {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: all var(--transition-fast);
    }
    .service-card .card-link .arrow {
        transition: transform var(--transition-fast);
    }
    .service-card .card-link:hover {
        color: var(--primary-dark);
    }
    .service-card .card-link:hover .arrow {
        transform: translateX(4px);
    }
    /* Process steps */
    .process-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .process-step {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 24px 20px;
        position: relative;
        box-shadow: var(--shadow-sm);
        transition: all var(--transition-fast);
    }
    .process-step:hover {
        box-shadow: var(--shadow-md);
        border-color: rgba(15, 122, 110, 0.3);
        transform: translateY(-3px);
    }
    .process-step .step-num {
        width: 32px;
        height: 32px;
        background: var(--primary);
        color: #fff;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 14px;
        margin-bottom: 12px;
    }
    .process-step h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--charcoal);
        margin-bottom: 6px;
    }
    .process-step p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }
    /* Technical metrics */
    .tech-metrics-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
    .tech-metric {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 22px 18px;
        text-align: center;
        box-shadow: var(--shadow-sm);
        border-top: 3px solid var(--primary);
        transition: all var(--transition-fast);
    }
    .tech-metric:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-3px);
    }
    .tech-metric .value {
        font-size: 30px;
        font-weight: 700;
        color: var(--primary);
        letter-spacing: -0.5px;
    }
    .tech-metric .label {
        font-size: 13px;
        color: var(--text-muted);
        margin-top: 4px;
    }
    .tech-metric.highlight {
        border-top-color: var(--accent);
    }
    .tech-metric.highlight .value {
        color: var(--accent);
    }
    /* FAQ */
    .faq-section {
        margin-bottom: 64px;
    }
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: all var(--transition-fast);
    }
    .faq-item:hover {
        border-color: rgba(15, 122, 110, 0.25);
    }
    .faq-item.open {
        border-bottom: 2px solid var(--primary);
    }
    .faq-question {
        width: 100%;
        background: none;
        border: none;
        padding: 16px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        cursor: pointer;
        text-align: left;
        font-size: 16px;
        font-weight: 600;
        color: var(--charcoal);
        transition: color var(--transition-fast);
    }
    .faq-question:hover {
        color: var(--primary);
    }
    .faq-question .faq-icon {
        flex-shrink: 0;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        border: 1px solid var(--border);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-muted);
        font-size: 14px;
        transition: all var(--transition-fast);
    }
    .faq-item.open .faq-icon {
        transform: rotate(45deg);
        border-color: var(--primary);
        color: var(--primary);
        background: var(--primary-light);
    }
    .faq-answer {
        display: none;
        padding: 0 20px 16px;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.8;
    }
    .faq-item.open .faq-answer {
        display: block;
    }
    /* CTA section */
    .cta-section {
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        border-radius: var(--radius-xl);
        padding: 44px 40px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
        margin-bottom: 64px;
        color: var(--text-light);
    }
    .cta-section h2 {
        font-size: 26px;
        font-weight: 700;
        color: #fff;
        letter-spacing: -0.3px;
        line-height: 1.3;
        margin-bottom: 8px;
    }
    .cta-section p {
        font-size: 15px;
        color: rgba(255, 255, 255, 0.85);
        max-width: 480px;
        line-height: 1.7;
    }
    .cta-section .cta-btn {
        flex-shrink: 0;
        background: var(--accent);
        color: #fff;
        font-size: 16px;
        font-weight: 600;
        padding: 12px 28px;
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
        white-space: nowrap;
        box-shadow: 0 4px 16px rgba(255, 107, 53, 0.35);
    }
    .cta-section .cta-btn:hover {
        background: var(--accent-dark);
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(255, 107, 53, 0.45);
    }
    /* Footer */
    .site-footer {
        background: var(--charcoal);
        color: var(--text-light);
        margin-top: auto;
        padding-top: 48px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 32px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }
    .footer-brand .logo-text {
        font-size: 24px;
        margin-bottom: 12px;
    }
    .footer-brand .logo-text a {
        color: #fff;
    }
    .footer-brand .logo-text a:hover {
        color: rgba(255, 255, 255, 0.8);
    }
    .footer-brand p {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.65);
        line-height: 1.7;
    }
    .footer-col h4 {
        font-size: 15px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 14px;
    }
    .footer-col ul {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    .footer-col a {
        color: rgba(255, 255, 255, 0.65);
        font-size: 14px;
        transition: color var(--transition-fast);
    }
    .footer-col a:hover {
        color: #fff;
    }
    .footer-bottom {
        padding: 18px 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.55);
    }
    .footer-bottom a {
        color: rgba(255, 255, 255, 0.55);
        transition: color var(--transition-fast);
    }
    .footer-bottom a:hover {
        color: #fff;
    }
    .footer-bottom .sep {
        margin: 0 8px;
        color: rgba(255, 255, 255, 0.3);
    }
    /* Responsive */
    @media (max-width: 1024px) {
        .service-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .process-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .tech-metrics-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .stats-badge-row {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 767px) {
        .container {
            padding: 0 16px;
        }
        .header-main {
            padding: 8px 0;
        }
        .logo-text {
            font-size: 18px;
        }
        .header-tools .hot-tag {
            display: none;
        }
        .nav-bar .desktop-only {
            display: none;
        }
        .hamburger {
            display: flex;
        }
        .mobile-menu.show {
            display: flex;
        }
        .page-header h1 {
            font-size: 26px;
        }
        .section-title {
            font-size: 22px;
        }
        .stats-badge-row {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .service-grid {
            grid-template-columns: 1fr;
        }
        .process-grid {
            grid-template-columns: 1fr;
        }
        .tech-metrics-grid {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .cta-section {
            flex-direction: column;
            padding: 32px 24px;
            text-align: center;
        }
        .cta-section .cta-btn {
            width: 100%;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
    }
    @media (max-width: 520px) {
        .stats-badge-row {
            grid-template-columns: 1fr;
        }
        .tech-metrics-grid {
            grid-template-columns: 1fr;
        }
        .page-header h1 {
            font-size: 24px;
        }
        .breadcrumb {
            font-size: 12px;
        }
    }

/* roulang page: category1 */
:root {
            --primary: #0F7A6E;
            --primary-dark: #0B5F56;
            --primary-light: #E6F2F0;
            --accent: #FF6B35;
            --accent-dark: #D94F1D;
            --charcoal: #1C1C1C;
            --bg: #FAFAF7;
            --surface: #FFFFFF;
            --border: #E5E2DC;
            --divider: #EDEAE4;
            --text-body: #3A3A3A;
            --text-muted: #6E6E6E;
            --text-light: #FAFAFA;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(28, 28, 28, 0.06);
            --shadow-md: 0 6px 16px rgba(28, 28, 28, 0.10);
            --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.14);
            --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --container-max: 1180px;
            --header-height: 64px;
            --nav-height: 56px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg);
            line-height: 1.8;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
            padding: 0;
        }

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

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

        a:focus-visible {
            outline: 3px solid rgba(15, 122, 110, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 14px;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--divider);
            transition: box-shadow var(--transition-base);
        }

        .site-header.is-scrolled {
            box-shadow: 0 2px 16px rgba(28, 28, 28, 0.10);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            flex-wrap: wrap;
            gap: 8px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
            letter-spacing: -0.5px;
            text-decoration: none;
        }

        .logo-mark:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .logo-text a {
            color: var(--charcoal);
            text-decoration: none;
        }

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

        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-toggle {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .search-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .search-box {
            display: none;
            align-items: center;
            gap: 6px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }

        .search-box.active {
            display: flex;
        }

        .search-box input {
            border: none;
            outline: none;
            width: 180px;
            font-size: 13px;
            color: var(--text-body);
            background: transparent;
        }

        .search-box input:focus {
            outline: none;
        }

        .search-box .search-close {
            color: var(--text-muted);
            font-size: 12px;
            cursor: pointer;
            padding: 0 4px;
        }

        .hot-tag {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 20px;
            background: #F0EFEB;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
            display: inline-block;
        }

        .hot-tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-bar {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 0;
        }

        .nav-list {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 28px;
            flex-wrap: wrap;
        }

        .nav-list li a {
            display: block;
            padding: 14px 4px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            text-decoration: none;
            border-bottom: 3px solid transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-list li a:hover {
            color: var(--primary);
            border-bottom-color: var(--primary-light);
        }

        .nav-list li a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: transparent;
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--charcoal);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 10px 8px;
            font-size: 15px;
            color: var(--text-body);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-menu a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            background: linear-gradient(180deg, #FAFAF7 0%, #F0F4F2 100%);
            padding: 56px 0 40px;
            text-align: center;
            border-bottom: 1px solid var(--divider);
        }

        .breadcrumb-wrap {
            display: flex;
            justify-content: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

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

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

        .breadcrumb-wrap .sep {
            color: var(--text-muted);
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin: 0 0 12px;
        }

        .category-hero .hero-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .hero-search {
            max-width: 560px;
            margin: 0 auto 16px;
            display: flex;
            gap: 8px;
            align-items: center;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 6px 8px 6px 16px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

        .hero-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(15, 122, 110, 0.12);
        }

        .hero-search input {
            flex: 1;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text-body);
            background: transparent;
            padding: 6px 0;
        }

        .hero-search .search-btn {
            background: var(--primary);
            color: #fff;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 14px;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .hero-search .search-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .hero-chips {
            display: flex;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .hero-chips .chip {
            font-size: 12px;
            padding: 6px 14px;
            border-radius: 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--text-muted);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .hero-chips .chip:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 28px;
        }

        .hero-badges .badge-item {
            text-align: center;
        }

        .hero-badges .badge-num {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .hero-badges .badge-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ===== Section Base ===== */
        .section {
            padding: 56px 0;
        }

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }

        .section-title {
            font-size: 26px;
            font-weight: 600;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            margin: 0 0 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0 0 32px;
            line-height: 1.7;
        }

        /* ===== Data Overview Cards ===== */
        .overview-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
        }

        .overview-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .overview-card .ov-icon {
            font-size: 28px;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .overview-card .ov-num {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .overview-card .ov-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .overview-card .ov-trend {
            font-size: 12px;
            font-weight: 500;
            margin-top: 8px;
            display: inline-block;
            padding: 2px 10px;
            border-radius: 20px;
        }

        .ov-trend.up {
            background: var(--primary-light);
            color: var(--primary);
        }

        .ov-trend.down {
            background: #FFF0E8;
            color: var(--accent);
        }

        /* ===== Article List ===== */
        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.25);
            transform: translateY(-3px);
        }

        .article-card .article-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #F0EFEB;
        }

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

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

        .article-card .article-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 20px;
            background: var(--primary);
            color: #fff;
            font-weight: 500;
        }

        .article-card .article-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-card .article-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .article-card .article-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--charcoal);
            margin: 0 0 8px;
            line-height: 1.5;
            letter-spacing: -0.2px;
        }

        .article-card .article-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }

        .article-card .read-more {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
            align-self: flex-start;
        }

        .article-card .read-more:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* ===== League Coverage ===== */
        .league-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
            text-align: center;
        }

        .league-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.25);
            transform: translateY(-3px);
        }

        .league-card .league-icon {
            font-size: 32px;
            margin-bottom: 10px;
            color: var(--primary);
        }

        .league-card .league-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 6px;
        }

        .league-card .league-detail {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== Flow / Steps ===== */
        .step-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            height: 100%;
            position: relative;
            transition: all var(--transition-base);
        }

        .step-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.25);
            transform: translateY(-2px);
        }

        .step-item .step-num {
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 12px;
        }

        .step-item .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 6px;
        }

        .step-item .step-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Refresh Mechanism ===== */
        .refresh-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            height: 100%;
            transition: all var(--transition-base);
        }

        .refresh-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.25);
            transform: translateY(-2px);
        }

        .refresh-item .rf-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.4px;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .refresh-item .rf-label {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 18px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--charcoal);
            transition: all var(--transition-fast);
            user-select: none;
        }

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

        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

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

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-base);
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            padding: 0 20px 18px;
            max-height: 300px;
            border-top: 1px solid var(--primary-light);
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-banner {
            background: linear-gradient(135deg, #0F7A6E 0%, #0B5F56 100%);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }

        .cta-banner .cta-left h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            letter-spacing: -0.3px;
        }

        .cta-banner .cta-left p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            line-height: 1.7;
        }

        .cta-banner .cta-btn {
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .cta-banner .cta-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.35);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--charcoal);
            color: var(--text-light);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .site-footer .footer-grid {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .site-footer .footer-brand {
            max-width: 320px;
            flex: 1 1 260px;
        }

        .site-footer .footer-brand .logo-text a {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            text-decoration: none;
        }

        .site-footer .footer-brand .logo-text a:hover {
            color: rgba(255, 255, 255, 0.8);
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-top: 12px;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.3px;
        }

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

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

        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: 12px;
            transition: color var(--transition-fast);
        }

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

        .site-footer .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== View More Link ===== */
        .view-more-wrap {
            text-align: center;
            margin-top: 32px;
        }

        .view-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 24px;
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .view-more-btn:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            gap: 10px;
        }

        /* ===== Bootstrap Overrides ===== */
        .row {
            --bs-gutter-x: 1.5rem;
            --bs-gutter-y: 1.5rem;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .header-main {
                padding: 8px 0;
            }

            .logo-text {
                font-size: 18px;
            }

            .category-hero {
                padding: 40px 0 32px;
            }

            .category-hero h1 {
                font-size: 28px;
            }

            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 22px;
            }
        }

        @media (max-width: 767px) {
            .header-tools .hot-tag {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .nav-list.desktop-only {
                display: none;
            }

            .nav-bar {
                display: none;
            }

            .category-hero {
                padding: 28px 0 24px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero .hero-subtitle {
                font-size: 14px;
            }

            .hero-badges {
                gap: 20px;
            }

            .hero-badges .badge-num {
                font-size: 20px;
            }

            .section {
                padding: 32px 0;
            }

            .section-title {
                font-size: 20px;
            }

            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }

            .cta-banner .cta-btn {
                width: 100%;
                text-align: center;
            }

            .footer-grid {
                flex-direction: column;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .overview-card .ov-num {
                font-size: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .category-hero h1 {
                font-size: 22px;
                line-height: 1.4;
            }

            .hero-search {
                flex-direction: column;
                padding: 12px;
                gap: 10px;
            }

            .hero-search .search-btn {
                width: 100%;
                text-align: center;
            }

            .article-card .article-title {
                font-size: 15px;
            }

            .article-card .article-summary {
                font-size: 13px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0F7A6E;
            --primary-dark: #0B5F56;
            --primary-light: #E6F2F0;
            --accent: #FF6B35;
            --accent-dark: #D94F1D;
            --charcoal: #1C1C1C;
            --bg: #FAFAF7;
            --surface: #FFFFFF;
            --border: #E5E2DC;
            --divider: #EDEAE4;
            --text-body: #3A3A3A;
            --text-muted: #6E6E6E;
            --text-light: #FAFAFA;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(28, 28, 28, 0.06);
            --shadow-md: 0 6px 16px rgba(28, 28, 28, 0.10);
            --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.14);
            --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --container-max: 1180px;
            --header-height: 64px;
            --nav-height: 56px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg);
            line-height: 1.8;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        a:focus-visible {
            outline: 3px solid rgba(15, 122, 110, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 14px;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

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

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--divider);
            transition: box-shadow var(--transition-base);
        }

        .site-header.is-scrolled {
            box-shadow: 0 2px 16px rgba(28, 28, 28, 0.10);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            flex-wrap: wrap;
            gap: 8px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .logo-text a {
            color: var(--charcoal);
            text-decoration: none;
        }

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

        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-toggle {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .search-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .search-box {
            display: none;
            align-items: center;
            gap: 6px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }

        .search-box.active {
            display: flex;
        }

        .search-box input {
            border: none;
            outline: none;
            width: 180px;
            font-size: 13px;
            color: var(--text-body);
            background: transparent;
        }

        .search-box input:focus {
            outline: none;
        }

        .search-box .search-close {
            color: var(--text-muted);
            font-size: 12px;
            cursor: pointer;
            padding: 0 4px;
        }

        .hot-tag {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 20px;
            background: #F0EFEB;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hot-tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-bar {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 0;
        }

        .nav-list {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 0;
            margin: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }

        .nav-list::-webkit-scrollbar {
            display: none;
        }

        .nav-list li a {
            display: inline-block;
            padding: 14px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            white-space: nowrap;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-list li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--surface);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-body);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 10px 0;
            flex-direction: column;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-bottom: 1px solid var(--divider);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .mobile-menu a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: #fff;
            border-bottom: 1px solid var(--divider);
            padding: 16px 0;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: #B8B4AA;
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* Category Hero */
        .category-hero {
            padding: 48px 0 40px;
            background: linear-gradient(180deg, #F2F8F6 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--divider);
        }

        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }

        .category-hero h1::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin-top: 12px;
        }

        .category-hero .hero-desc {
            font-size: 16px;
            color: var(--text-body);
            max-width: 760px;
            line-height: 1.9;
            margin-top: 20px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-body);
        }

        .hero-badge .badge-num {
            font-weight: 700;
            color: var(--primary);
        }

        /* Section General */
        .section {
            padding: 48px 0;
        }

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 600;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            line-height: 1.3;
            margin-bottom: 8px;
            position: relative;
            padding-left: 16px;
        }

        .section-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            width: 4px;
            height: 28px;
            background: var(--primary);
            border-radius: 4px;
        }

        .section-header p {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }

        /* Stat Badges */
        .stat-badge-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 28px;
        }

        .stat-badge-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all var(--transition-fast);
        }

        .stat-badge-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(15, 122, 110, 0.25);
        }

        .stat-badge-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .stat-badge-info {
            flex: 1;
        }

        .stat-badge-info .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            display: block;
            line-height: 1.4;
        }

        .stat-badge-info .stat-value {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
        }

        /* Report List */
        .report-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .report-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .report-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(15, 122, 110, 0.25);
        }

        .report-card-img {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #E8E4DC;
        }

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

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

        .report-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .report-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .report-card-meta .report-tag {
            display: inline-block;
            padding: 2px 10px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 20px;
            font-size: 11px;
            font-weight: 500;
        }

        .report-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--charcoal);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .report-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 14px;
        }

        .report-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            transition: all var(--transition-fast);
            align-self: flex-start;
        }

        .report-card .read-more:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        .report-card .read-more .arrow {
            font-size: 14px;
            transition: transform var(--transition-fast);
        }

        .report-card .read-more:hover .arrow {
            transform: translateX(3px);
        }

        /* More link */
        .more-link-wrap {
            text-align: center;
            margin-top: 32px;
        }

        .more-link-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 28px;
            background: var(--surface);
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .more-link-btn:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* Tips section */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .tip-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            transition: all var(--transition-fast);
            text-align: left;
        }

        .tip-card:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(15, 122, 110, 0.2);
            transform: translateY(-2px);
        }

        .tip-card .tip-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
        }

        .tip-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .tip-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
        }

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

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-item.open {
            border-bottom: 2px solid var(--primary);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: var(--surface);
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--charcoal);
            text-align: left;
            gap: 16px;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-arrow {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
        }

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

        .faq-answer {
            display: none;
            padding: 0 20px 16px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.9;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }

        .cta-section .cta-text {
            flex: 1;
            min-width: 240px;
        }

        .cta-section .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

        .cta-section .cta-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
        }

        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 13px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .cta-section .cta-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.35);
        }

        /* Footer */
        .site-footer {
            background: var(--charcoal);
            color: var(--text-light);
            margin-top: 48px;
            padding: 48px 0 24px;
            flex-shrink: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-text a {
            color: #fff;
        }

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

        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

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

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

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stat-badge-row {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .report-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .header-main {
                padding: 8px 0;
            }

            .logo-text {
                font-size: 18px;
            }

            .desktop-only {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .hot-tag {
                display: none;
            }

            .category-hero {
                padding: 30px 0 28px;
            }

            .category-hero h1 {
                font-size: 26px;
                letter-spacing: -0.3px;
            }

            .category-hero h1::after {
                width: 40px;
                height: 3px;
                margin-top: 8px;
            }

            .category-hero .hero-desc {
                font-size: 14px;
                line-height: 1.7;
            }

            .hero-badges {
                gap: 6px;
                margin-top: 16px;
            }

            .hero-badge {
                font-size: 11px;
                padding: 4px 10px;
            }

            .section {
                padding: 32px 0;
            }

            .section-header h2 {
                font-size: 20px;
                padding-left: 12px;
            }

            .section-header h2::before {
                top: 4px;
                height: 22px;
                width: 3px;
            }

            .stat-badge-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
                margin-top: 18px;
            }

            .stat-badge-card {
                padding: 12px 14px;
                gap: 8px;
            }

            .stat-badge-icon {
                width: 30px;
                height: 30px;
                font-size: 16px;
            }

            .stat-badge-info .stat-value {
                font-size: 15px;
            }

            .report-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .report-card-img {
                height: 160px;
            }

            .report-card-body {
                padding: 14px;
            }

            .report-card h3 {
                font-size: 15px;
            }

            .tips-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .tp-card {
                padding: 16px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }

            .faq-answer {
                padding: 0 16px 12px;
                font-size: 12px;
            }

            .cta-section {
                padding: 26px 20px;
                flex-direction: column;
                text-align: center;
                gap: 18px;
            }

            .cta-section .cta-text h2 {
                font-size: 20px;
            }

            .cta-section .cta-btn {
                width: 100%;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .breadcrumb {
                font-size: 12px;
                gap: 4px;
            }
        }

        @media (max-width: 520px) {
            .stat-badge-row {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .report-card-img {
                height: 140px;
            }

            .search-box.active {
                width: 140px;
            }

            .search-box input {
                width: 100px;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #0F7A6E;
            --primary-dark: #0B5F56;
            --primary-light: #E6F2F0;
            --accent: #FF6B35;
            --accent-dark: #D94F1D;
            --charcoal: #1C1C1C;
            --bg: #FAFAF7;
            --surface: #FFFFFF;
            --border: #E5E2DC;
            --divider: #EDEAE4;
            --text-body: #3A3A3A;
            --text-muted: #6E6E6E;
            --text-light: #FAFAFA;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(28, 28, 28, 0.06);
            --shadow-md: 0 6px 16px rgba(28, 28, 28, 0.10);
            --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.14);
            --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --container-max: 1180px;
            --header-height: 64px;
            --nav-height: 56px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg);
            line-height: 1.8;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(15, 122, 110, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 14px;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.5em;
            color: var(--charcoal);
            line-height: 1.35;
            font-weight: 700;
        }

        h1 {
            font-size: clamp(28px, 3.8vw, 40px);
            font-weight: 700;
            letter-spacing: -0.5px;
            color: var(--charcoal);
            line-height: 1.25;
        }

        h2 {
            font-size: clamp(22px, 2.6vw, 28px);
            font-weight: 600;
            color: var(--charcoal);
            position: relative;
            padding-bottom: 10px;
            margin-bottom: 28px;
        }

        h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 56px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--charcoal);
        }

        p {
            margin: 0 0 1em;
            color: var(--text-body);
        }

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--divider);
            transition: box-shadow var(--transition-base);
        }

        .site-header.is-scrolled {
            box-shadow: 0 2px 16px rgba(28, 28, 28, 0.10);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            flex-wrap: wrap;
            gap: 8px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .logo-text a {
            color: var(--charcoal);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-toggle {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .search-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .search-box {
            display: none;
            align-items: center;
            gap: 6px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }

        .search-box.active {
            display: flex;
        }

        .search-box input {
            border: none;
            outline: none;
            width: 180px;
            font-size: 13px;
            color: var(--text-body);
            background: transparent;
        }

        .search-box input:focus {
            outline: none;
        }

        .search-box .search-close {
            color: var(--text-muted);
            font-size: 12px;
            cursor: pointer;
            padding: 0 4px;
        }

        .hot-tag {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 20px;
            background: #F0EFEB;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hot-tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--surface);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--charcoal);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.is-open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .nav-bar {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 24px;
            flex-wrap: wrap;
        }

        .nav-list a {
            display: inline-block;
            padding: 14px 4px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
        }

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

        .nav-list a.active {
            background: var(--primary);
            color: #fff;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 12px 24px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu a {
            padding: 12px 8px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-menu a.active {
            background: var(--primary);
            color: #fff;
        }

        .mobile-menu.is-open {
            display: flex;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            color: var(--border);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ===== Page Intro ===== */
        .page-intro {
            background: linear-gradient(135deg, #F2F8F7 0%, #FAFAF7 70%);
            border-bottom: 1px solid var(--divider);
            padding: 48px 0 40px;
        }

        .page-intro-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 32px;
            align-items: start;
        }

        .page-intro-main .label-chip {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .page-intro-main h1 {
            margin-bottom: 12px;
        }

        .page-intro-main .intro-text {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 0;
            max-width: 680px;
        }

        .intro-stats {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .intro-stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-sm);
        }

        .intro-stat-card .stat-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .intro-stat-card .stat-value {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
        }

        /* ===== Section base ===== */
        .section {
            padding: 56px 0;
        }

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            margin-bottom: 0;
        }

        .section-header .section-note {
            font-size: 13px;
            color: var(--text-muted);
            max-width: 360px;
            text-align: right;
        }

        /* ===== League Grid ===== */
        .league-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .league-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .league-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.3);
            transform: translateY(-3px);
        }

        .league-card .card-img {
            aspect-ratio: 16 / 8;
            overflow: hidden;
            background: #EDEAE4;
            position: relative;
        }

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

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

        .league-card .card-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--accent);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            z-index: 2;
        }

        .league-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .league-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--charcoal);
            margin-bottom: 6px;
        }

        .league-card .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .league-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--divider);
            padding-top: 12px;
        }

        .league-card .card-meta .speed-index {
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            font-variant-numeric: tabular-nums;
        }

        /* ===== Depth Section ===== */
        .depth-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .depth-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4 / 3;
        }

        .depth-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .depth-content h2 {
            margin-bottom: 16px;
        }

        .depth-content .depth-text {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-body);
            margin-bottom: 20px;
        }

        .depth-points {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .depth-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        .depth-points li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }

        /* ===== Speed Ranking ===== */
        .rank-list {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .rank-row {
            display: grid;
            grid-template-columns: 48px 1fr 120px 100px;
            align-items: center;
            gap: 12px;
            padding: 14px 20px;
            border-bottom: 1px solid var(--divider);
            transition: background var(--transition-fast);
        }

        .rank-row:last-child {
            border-bottom: none;
        }

        .rank-row:hover {
            background: var(--primary-light);
        }

        .rank-row .rank-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
        }

        .rank-row .rank-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--charcoal);
        }

        .rank-row .rank-region {
            font-size: 12px;
            color: var(--text-muted);
        }

        .rank-row .rank-speed {
            font-size: 15px;
            font-weight: 700;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            text-align: right;
        }

        /* ===== Support Data ===== */
        .support-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .support-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

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

        .support-card .support-icon {
            font-size: 28px;
            margin-bottom: 10px;
            display: block;
        }

        .support-card .support-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            margin-bottom: 4px;
        }

        .support-card .support-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item.is-open {
            border-bottom: 3px solid var(--primary);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            background: transparent;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

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

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

        .faq-item.is-open .faq-answer {
            max-height: 240px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            color: #fff;
            flex-wrap: wrap;
        }

        .cta-banner h3 {
            color: #fff;
            font-size: 22px;
            margin-bottom: 6px;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            margin-bottom: 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-fast);
            cursor: pointer;
            line-height: 1.5;
            white-space: nowrap;
        }

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

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

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--charcoal);
            color: #d0d0d0;
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-text {
            font-size: 22px;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-text a {
            color: #fff;
            transition: color var(--transition-fast);
        }

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

        .footer-brand p {
            color: #b0b0b0;
            font-size: 14px;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            color: #b0b0b0;
            font-size: 14px;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 13px;
            color: #b0b0b0;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: #b0b0b0;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* ===== View More Link ===== */
        .view-more-row {
            display: flex;
            justify-content: center;
            margin-top: 24px;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition-fast);
        }

        .view-more-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        .view-more-link .arrow {
            display: inline-block;
            transition: transform var(--transition-fast);
        }

        .view-more-link:hover .arrow {
            transform: translateX(3px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .league-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .support-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-intro-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .intro-stats {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .intro-stat-card {
                flex: 1;
                min-width: 150px;
            }
            .rank-row {
                grid-template-columns: 40px 1fr 90px 80px;
                padding: 12px 14px;
                gap: 8px;
            }
        }

        @media (max-width: 768px) {
            .header-main {
                padding: 8px 0;
            }
            .hot-tag {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-bar {
                display: none;
            }
            .mobile-menu.is-open {
                display: flex;
            }
            .league-grid {
                grid-template-columns: 1fr;
            }
            .support-grid {
                grid-template-columns: 1fr 1fr;
            }
            .depth-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: 40px 0;
            }
            .page-intro {
                padding: 32px 0 28px;
            }
            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }
            .rank-row {
                grid-template-columns: 36px 1fr 70px;
                font-size: 13px;
            }
            .rank-row .rank-region {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-header .section-note {
                text-align: left;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            h1 {
                font-size: 26px;
            }
            h2 {
                font-size: 21px;
            }
            .support-grid {
                grid-template-columns: 1fr;
            }
            .intro-stats {
                flex-direction: column;
            }
            .intro-stat-card {
                min-width: auto;
            }
            .rank-row {
                grid-template-columns: 32px 1fr 60px;
                padding: 10px 10px;
                gap: 6px;
            }
            .rank-row .rank-speed {
                font-size: 13px;
            }
            .league-card .card-body {
                padding: 14px 16px;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #0F7A6E;
            --primary-dark: #0B5F56;
            --primary-light: #E6F2F0;
            --accent: #FF6B35;
            --accent-dark: #D94F1D;
            --charcoal: #1C1C1C;
            --bg: #FAFAF7;
            --surface: #FFFFFF;
            --border: #E5E2DC;
            --divider: #EDEAE4;
            --text-body: #3A3A3A;
            --text-muted: #6E6E6E;
            --text-light: #FAFAFA;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 2px 8px rgba(28, 28, 28, 0.06);
            --shadow-md: 0 6px 16px rgba(28, 28, 28, 0.10);
            --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.14);
            --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --container-max: 1180px;
            --header-height: 64px;
            --nav-height: 56px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

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

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg);
            line-height: 1.8;
            font-size: 15px;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        a:focus-visible {
            outline: 3px solid rgba(15, 122, 110, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 14px;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

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

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--divider);
            transition: box-shadow var(--transition-base);
        }

        .site-header.is-scrolled {
            box-shadow: 0 2px 16px rgba(28, 28, 28, 0.10);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            flex-wrap: wrap;
            gap: 8px;
        }

        .brand-row {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }

        .logo-mark:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            line-height: 1.2;
        }

        .logo-text a {
            color: var(--charcoal);
            text-decoration: none;
        }

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

        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .search-toggle {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .search-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .search-box {
            display: none;
            align-items: center;
            gap: 6px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
        }

        .search-box.active {
            display: flex;
        }

        .search-box input {
            border: none;
            outline: none;
            width: 180px;
            font-size: 13px;
            color: var(--text-body);
            background: transparent;
        }

        .search-box input:focus {
            outline: none;
        }

        .search-box .search-close {
            color: var(--text-muted);
            font-size: 12px;
            cursor: pointer;
            padding: 0 4px;
            transition: color var(--transition-fast);
        }

        .search-box .search-close:hover {
            color: var(--charcoal);
        }

        .hot-tag {
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 20px;
            background: #F0EFEB;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hot-tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .nav-bar {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .nav-list::-webkit-scrollbar {
            height: 3px;
        }

        .nav-list::-webkit-scrollbar-track {
            background: transparent;
        }

        .nav-list::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .nav-list li {
            flex-shrink: 0;
        }

        .nav-list li a {
            display: block;
            padding: 15px 10px;
            font-size: 14px;
            color: var(--text-body);
            border-bottom: 2px solid transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            font-weight: 500;
        }

        .nav-list li a:hover {
            color: var(--primary);
            border-bottom-color: var(--primary-light);
        }

        .nav-list li a.active {
            color: #fff;
            background: var(--primary);
            border-radius: var(--radius-sm);
            padding: 8px 16px;
            margin: 7px 0;
            border-bottom: none;
            font-weight: 600;
        }

        .nav-list li a.active:hover {
            color: #fff;
            background: var(--primary-dark);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            background: transparent;
            transition: all var(--transition-fast);
        }

        .hamburger span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--charcoal);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger:hover {
            border-color: var(--primary);
            background: var(--primary-light);
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background: var(--surface);
            border-top: 1px solid var(--divider);
            padding: 12px 24px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu a {
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-body);
            font-size: 14px;
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .mobile-menu a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        /* ===== Page Hero / Breadcrumb ===== */
        .page-hero {
            background: linear-gradient(135deg, #0F7A6E 0%, #0B5F56 100%);
            color: #fff;
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.5);
        }

        .breadcrumb .current {
            color: #fff;
            font-weight: 600;
        }

        .page-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .page-hero .hero-sub {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 650px;
            line-height: 1.8;
        }

        /* ===== Stats Badges ===== */
        .stats-badges-section {
            padding: 32px 0 8px;
            margin-top: -10px;
            position: relative;
            z-index: 5;
        }

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

        .stat-badge-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 18px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

        .stat-badge-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.3);
            transform: translateY(-2px);
        }

        .stat-badge-item .stat-number {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .stat-badge-item .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== Section Base ===== */
        .section {
            padding: 56px 0;
        }

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
        }

        .section-title {
            font-size: 26px;
            font-weight: 600;
            color: var(--charcoal);
            letter-spacing: -0.3px;
            line-height: 1.35;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-title::before {
            content: '';
            width: 4px;
            height: 26px;
            background: var(--primary);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 28px;
        }

        /* ===== Brand Intro ===== */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-text h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 12px;
        }

        .brand-intro-text p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        .brand-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .brand-intro-image img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .brand-intro-image:hover img {
            transform: scale(1.02);
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: var(--primary-light);
            border-radius: 2px;
            border-left: 2px dashed var(--primary);
        }

        .timeline-item {
            position: relative;
            padding: 0 0 28px 20px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--primary-light);
            box-shadow: 0 0 0 2px var(--surface);
        }

        .timeline-item .timeline-year {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .timeline-item .timeline-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 4px;
        }

        .timeline-item .timeline-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== Capability Cards ===== */
        .capability-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .capability-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

        .capability-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.25);
            transform: translateY(-3px);
        }

        .capability-card .cap-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
        }

        .capability-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 8px;
        }

        .capability-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .capability-card .cap-stat {
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--divider);
            font-size: 13px;
            color: var(--text-muted);
        }

        .capability-card .cap-stat strong {
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
        }

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

        .coverage-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

        .coverage-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(15, 122, 110, 0.25);
            transform: translateY(-2px);
        }

        .coverage-card .coverage-icon {
            font-size: 28px;
            margin-bottom: 8px;
        }

        .coverage-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--charcoal);
            margin-bottom: 4px;
        }

        .coverage-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== More Link ===== */
        .more-link-wrap {
            text-align: center;
            padding: 16px 0 32px;
        }

        .more-link {
            display: inline-block;
            padding: 10px 20px;
            background: var(--surface);
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .more-link:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(15, 122, 110, 0.3);
        }

        .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--charcoal);
            transition: all var(--transition-fast);
            user-select: none;
        }

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

        .faq-question .faq-arrow {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, #0F7A6E 0%, #0B5F56 100%);
            border-radius: var(--radius-xl);
            padding: 40px 32px;
            margin: 40px 0 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-section .cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            letter-spacing: -0.3px;
        }

        .cta-section .cta-text p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
        }

        .cta-button {
            display: inline-block;
            padding: 12px 28px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .cta-button:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(217, 79, 29, 0.3);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--charcoal);
            color: #fff;
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-text a {
            color: #fff;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .stats-badges-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .brand-intro-image img {
                height: 240px;
            }

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

        @media (max-width: 768px) {
            .header-main {
                padding: 8px 0;
            }

            .hot-tag {
                display: none;
            }

            .nav-bar {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu.active {
                display: flex;
            }

            .logo-text {
                font-size: 18px;
            }

            .page-hero {
                padding: 32px 0 28px;
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .page-hero .hero-sub {
                font-size: 14px;
            }

            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .capability-grid {
                grid-template-columns: 1fr;
            }

            .timeline {
                padding-left: 20px;
            }

            .timeline-item {
                padding-left: 14px;
            }

            .timeline-item::before {
                left: -22px;
                width: 10px;
                height: 10px;
            }

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

            .cta-section {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }

            .stats-badges-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .stat-badge-item .stat-number {
                font-size: 22px;
            }

            .search-box.active input {
                width: 120px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .page-hero h1 {
                font-size: 22px;
            }

            .section-title {
                font-size: 20px;
            }

            .coverage-grid {
                grid-template-columns: 1fr;
            }

            .stats-badges-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }

            .stat-badge-item {
                padding: 14px 10px;
            }

            .stat-badge-item .stat-number {
                font-size: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category6 */
:root {
        --primary: #0F7A6E;
        --primary-dark: #0B5F56;
        --primary-light: #E6F2F0;
        --accent: #FF6B35;
        --accent-dark: #D94F1D;
        --charcoal: #1C1C1C;
        --bg: #FAFAF7;
        --surface: #FFFFFF;
        --border: #E5E2DC;
        --divider: #EDEAE4;
        --text-body: #3A3A3A;
        --text-muted: #6E6E6E;
        --text-light: #FAFAFA;
        --radius-sm: 8px;
        --radius-md: 10px;
        --radius-lg: 12px;
        --radius-xl: 16px;
        --shadow-sm: 0 2px 8px rgba(28, 28, 28, 0.06);
        --shadow-md: 0 6px 16px rgba(28, 28, 28, 0.10);
        --shadow-lg: 0 12px 32px rgba(28, 28, 28, 0.14);
        --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
        --transition-fast: 0.2s ease;
        --transition-base: 0.3s ease;
        --container-max: 1180px;
        --header-height: 64px;
        --nav-height: 56px;
    }
    *,*::before,*::after{
        box-sizing:border-box;
        margin:0;
        padding:0;
    }
    html{
        scroll-behavior:smooth;
        -webkit-text-size-adjust:100%;
    }
    body{
        font-family:var(--font-sans);
        color:var(--text-body);
        background:var(--bg);
        line-height:1.8;
        font-size:15px;
        overflow-x:hidden;
        min-height:100vh;
        display:flex;
        flex-direction:column;
    }
    a{
        text-decoration:none;
        color:var(--primary);
        transition:color var(--transition-fast);
    }
    a:hover{
        color:var(--primary-dark);
    }
    a:focus-visible{
        outline:3px solid rgba(15,122,110,0.35);
        outline-offset:2px;
        border-radius:4px;
    }
    img{
        max-width:100%;
        height:auto;
        display:block;
    }
    button,input,select,textarea{
        font-family:var(--font-sans);
        font-size:14px;
    }
    button{
        cursor:pointer;
        border:none;
        background:none;
        transition:all var(--transition-fast);
    }
    ul,ol{
        list-style:none;
    }
    h1,h2,h3,h4,h5,h6{
        color:var(--charcoal);
        line-height:1.3;
        font-weight:600;
    }
    h1{
        font-size:34px;
        font-weight:700;
        letter-spacing:-0.5px;
        line-height:1.25;
    }
    h2{
        font-size:26px;
        font-weight:600;
        letter-spacing:-0.2px;
        position:relative;
        padding-bottom:10px;
    }
    h2::after{
        content:'';
        position:absolute;
        left:0;
        bottom:0;
        width:48px;
        height:4px;
        background:var(--primary);
        border-radius:2px;
    }
    h3{
        font-size:19px;
        font-weight:600;
    }
    p{
        margin-bottom:10px;
    }
    .container{
        max-width:var(--container-max);
        margin:0 auto;
        padding:0 24px;
    }
    /* ===== Header / Navigation ===== */
    .site-header{
        position:sticky;
        top:0;
        z-index:100;
        background:rgba(255,255,255,0.98);
        border-bottom:1px solid var(--divider);
        transition:box-shadow var(--transition-base);
    }
    .site-header.is-scrolled{
        box-shadow:0 2px 16px rgba(28,28,28,0.10);
    }
    .header-main{
        display:flex;
        align-items:center;
        justify-content:space-between;
        padding:12px 0;
        flex-wrap:wrap;
        gap:10px;
    }
    .brand-row{
        display:flex;
        align-items:center;
        gap:12px;
        min-width:0;
    }
    .logo-mark{
        width:38px;
        height:38px;
        background:var(--primary);
        border-radius:var(--radius-md);
        display:flex;
        align-items:center;
        justify-content:center;
        color:#fff;
        font-weight:700;
        font-size:17px;
        flex-shrink:0;
        letter-spacing:-0.5px;
    }
    .logo-text{
        font-size:21px;
        font-weight:700;
        color:var(--charcoal);
        letter-spacing:-0.3px;
        line-height:1.2;
    }
    .logo-text a{
        color:var(--charcoal);
        text-decoration:none;
    }
    .logo-text a:hover{
        color:var(--primary);
    }
    .header-tools{
        display:flex;
        align-items:center;
        gap:10px;
    }
    .search-toggle{
        width:38px;
        height:38px;
        border-radius:50%;
        background:transparent;
        border:1px solid var(--border);
        color:var(--text-muted);
        display:flex;
        align-items:center;
        justify-content:center;
        font-size:15px;
        transition:all var(--transition-fast);
    }
    .search-toggle:hover{
        border-color:var(--primary);
        color:var(--primary);
        background:var(--primary-light);
    }
    .search-box{
        display:none;
        align-items:center;
        gap:6px;
        background:var(--surface);
        border:1px solid var(--border);
        border-radius:var(--radius-sm);
        padding:6px 10px;
    }
    .search-box.active{
        display:flex;
    }
    .search-box input{
        border:none;
        outline:none;
        width:180px;
        font-size:13px;
        color:var(--text-body);
        background:transparent;
    }
    .search-box input:focus{
        outline:none;
    }
    .search-box .search-close{
        color:var(--text-muted);
        font-size:12px;
        cursor:pointer;
        padding:0 4px;
        line-height:1;
    }
    .hot-tags{
        display:flex;
        gap:6px;
        align-items:center;
    }
    .hot-tag{
        font-size:12px;
        padding:4px 10px;
        border-radius:20px;
        background:#F0EFEB;
        color:var(--text-muted);
        transition:all var(--transition-fast);
        white-space:nowrap;
        display:inline-block;
    }
    .hot-tag:hover{
        background:var(--primary-light);
        color:var(--primary);
    }
    .hamburger{
        display:none;
        flex-direction:column;
        justify-content:center;
        align-items:center;
        gap:5px;
        width:38px;
        height:38px;
        border-radius:var(--radius-sm);
        border:1px solid var(--border);
        background:transparent;
        cursor:pointer;
        transition:all var(--transition-fast);
    }
    .hamburger span{
        display:block;
        width:20px;
        height:2px;
        background:var(--charcoal);
        border-radius:2px;
        transition:all var(--transition-base);
    }
    .hamburger:hover{
        border-color:var(--primary);
    }
    .hamburger.active span:nth-child(1){
        transform:translateY(7px) rotate(45deg);
    }
    .hamburger.active span:nth-child(2){
        opacity:0;
    }
    .hamburger.active span:nth-child(3){
        transform:translateY(-7px) rotate(-45deg);
    }
    .nav-bar{
        background:var(--surface);
        border-top:1px solid var(--divider);
    }
    .nav-list{
        display:flex;
        align-items:center;
        gap:28px;
        padding:10px 0;
        overflow-x:auto;
        -webkit-overflow-scrolling:touch;
        scrollbar-width:none;
    }
    .nav-list::-webkit-scrollbar{
        display:none;
    }
    .nav-list li a{
        display:inline-block;
        font-size:15px;
        font-weight:500;
        color:var(--text-body);
        padding:6px 12px;
        border-radius:var(--radius-sm);
        white-space:nowrap;
        transition:all var(--transition-fast);
    }
    .nav-list li a:hover{
        color:var(--primary);
        background:var(--primary-light);
    }
    .nav-list li a.active{
        background:var(--primary);
        color:#fff;
        font-weight:600;
    }
    .mobile-menu{
        display:none;
        flex-direction:column;
        background:var(--surface);
        border-top:1px solid var(--divider);
        padding:12px 24px 20px;
    }
    .mobile-menu.active{
        display:flex;
    }
    .mobile-menu a{
        padding:12px 0;
        border-bottom:1px solid var(--divider);
        font-size:16px;
        color:var(--text-body);
        font-weight:500;
    }
    .mobile-menu a:last-child{
        border-bottom:none;
    }
    .mobile-menu a.active{
        color:var(--primary);
        font-weight:600;
    }
    /* ===== Breadcrumb ===== */
    .breadcrumb{
        font-size:13px;
        color:var(--text-muted);
        padding:16px 0 6px;
    }
    .breadcrumb a{
        color:var(--primary);
    }
    .breadcrumb a:hover{
        color:var(--primary-dark);
        text-decoration:underline;
    }
    .breadcrumb .sep{
        margin:0 8px;
        color:#BDB9B0;
    }
    .breadcrumb .current{
        color:var(--text-muted);
    }
    /* ===== Page Hero (Category H1) ===== */
    .page-hero{
        padding:32px 0 40px;
        border-bottom:1px solid var(--divider);
        background:var(--surface);
    }
    .page-hero .h1-row{
        display:flex;
        align-items:flex-end;
        justify-content:space-between;
        flex-wrap:wrap;
        gap:16px;
    }
    .page-hero h1{
        font-size:32px;
        letter-spacing:-0.5px;
        color:var(--charcoal);
    }
    .page-hero .h1-highlight{
        display:inline-block;
        color:var(--primary);
        border-bottom:4px solid var(--primary);
        padding-bottom:2px;
        line-height:1.3;
    }
    .page-hero .hero-desc{
        margin-top:14px;
        font-size:16px;
        color:var(--text-body);
        max-width:720px;
        line-height:1.8;
    }
    /* ===== Stats Badges ===== */
    .stats-badges{
        padding:28px 0 10px;
    }
    .stats-grid{
        display:grid;
        grid-template-columns:repeat(4,1fr);
        gap:16px;
    }
    .stat-badge{
        background:var(--surface);
        border:1px solid var(--border);
        border-radius:var(--radius-lg);
        padding:18px 20px;
        text-align:center;
        box-shadow:var(--shadow-sm);
        transition:all var(--transition-base);
    }
    .stat-badge:hover{
        box-shadow:var(--shadow-md);
        border-color:rgba(15,122,110,0.25);
        transform:translateY(-2px);
    }
    .stat-badge .stat-number{
        font-size:28px;
        font-weight:700;
        color:var(--primary);
        line-height:1.2;
        letter-spacing:-0.5px;
    }
    .stat-badge .stat-label{
        font-size:13px;
        color:var(--text-muted);
        margin-top:6px;
    }
    /* ===== Section Base ===== */
    .section{
        padding:56px 0;
    }
    .section-alt{
        background:var(--surface);
        border-top:1px solid var(--divider);
        border-bottom:1px solid var(--divider);
    }
    .section-head{
        margin-bottom:28px;
    }
    .section-head p{
        color:var(--text-muted);
        font-size:15px;
        margin-top:8px;
        max-width:600px;
    }
    /* ===== Service List ===== */
    .service-list-grid{
        display:grid;
        grid-template-columns:repeat(2,1fr);
        gap:20px;
    }
    .service-card{
        background:var(--surface);
        border:1px solid var(--border);
        border-radius:var(--radius-lg);
        overflow:hidden;
        box-shadow:var(--shadow-sm);
        transition:all var(--transition-base);
        display:flex;
        flex-direction:column;
    }
    .service-card:hover{
        box-shadow:var(--shadow-md);
        border-color:rgba(15,122,110,0.3);
        transform:translateY(-3px);
    }
    .service-card .card-img{
        height:180px;
        overflow:hidden;
        position:relative;
    }
    .service-card .card-img img{
        width:100%;
        height:100%;
        object-fit:cover;
        transition:transform var(--transition-base);
    }
    .service-card:hover .card-img img{
        transform:scale(1.04);
    }
    .service-card .card-body{
        padding:20px 22px;
        flex:1;
        display:flex;
        flex-direction:column;
    }
    .service-card .card-body h3{
        font-size:18px;
        margin-bottom:8px;
        color:var(--charcoal);
    }
    .service-card .card-body p{
        font-size:14px;
        color:var(--text-muted);
        line-height:1.8;
        margin-bottom:12px;
        flex:1;
    }
    .service-card .card-tags{
        display:flex;
        flex-wrap:wrap;
        gap:6px;
    }
    .badge-tag{
        font-size:12px;
        padding:3px 10px;
        border-radius:20px;
        background:var(--primary-light);
        color:var(--primary);
        font-weight:500;
    }
    .badge-tag.accent{
        background:#FFF0E8;
        color:var(--accent);
    }
    /* ===== More Link ===== */
    .more-link-row{
        text-align:center;
        padding:32px 0 8px;
    }
    .more-link{
        display:inline-flex;
        align-items:center;
        gap:8px;
        font-size:15px;
        font-weight:600;
        color:var(--primary);
        padding:10px 22px;
        border:1px solid var(--primary);
        border-radius:var(--radius-sm);
        transition:all var(--transition-fast);
    }
    .more-link:hover{
        background:var(--primary-light);
        color:var(--primary-dark);
        transform:translateY(-2px);
    }
    .more-link .arrow{
        font-size:18px;
        transition:transform var(--transition-fast);
    }
    .more-link:hover .arrow{
        transform:translateX(4px);
    }
    /* ===== Process Steps ===== */
    .process-steps{
        display:grid;
        grid-template-columns:repeat(5,1fr);
        gap:16px;
    }
    .process-step{
        background:var(--surface);
        border:1px solid var(--border);
        border-radius:var(--radius-lg);
        padding:20px 18px;
        text-align:center;
        box-shadow:var(--shadow-sm);
        transition:all var(--transition-base);
        position:relative;
    }
    .process-step:hover{
        box-shadow:var(--shadow-md);
        transform:translateY(-3px);
    }
    .process-step .step-number{
        display:inline-flex;
        align-items:center;
        justify-content:center;
        width:36px;
        height:36px;
        border-radius:50%;
        background:var(--primary);
        color:#fff;
        font-weight:700;
        font-size:16px;
        margin-bottom:10px;
    }
    .process-step h4{
        font-size:15px;
        font-weight:600;
        color:var(--charcoal);
        margin-bottom:6px;
    }
    .process-step p{
        font-size:13px;
        color:var(--text-muted);
        line-height:1.6;
        margin-bottom:0;
    }
    /* ===== Data Access Cards ===== */
    .access-grid{
        display:grid;
        grid-template-columns:repeat(4,1fr);
        gap:16px;
    }
    .access-card{
        background:var(--surface);
        border:1px solid var(--border);
        border-radius:var(--radius-lg);
        padding:22px 20px;
        box-shadow:var(--shadow-sm);
        transition:all var(--transition-base);
    }
    .access-card:hover{
        box-shadow:var(--shadow-md);
        border-color:rgba(15,122,110,0.3);
        transform:translateY(-2px);
    }
    .access-card .access-icon{
        font-size:28px;
        margin-bottom:12px;
        display:block;
    }
    .access-card h4{
        font-size:16px;
        font-weight:600;
        margin-bottom:6px;
    }
    .access-card p{
        font-size:13px;
        color:var(--text-muted);
        line-height:1.7;
        margin-bottom:0;
    }
    .access-card .format-label{
        display:inline-block;
        font-size:12px;
        font-weight:600;
        color:var(--primary);
        background:var(--primary-light);
        padding:2px 10px;
        border-radius:20px;
        margin-top:10px;
    }
    /* ===== FAQ ===== */
    .faq-list{
        max-width:800px;
    }
    .faq-item{
        background:var(--surface);
        border:1px solid var(--border);
        border-radius:var(--radius-lg);
        margin-bottom:12px;
        box-shadow:var(--shadow-sm);
        overflow:hidden;
        transition:all var(--transition-base);
    }
    .faq-item.open{
        border-bottom:3px solid var(--primary);
    }
    .faq-question{
        display:flex;
        align-items:center;
        justify-content:space-between;
        padding:16px 20px;
        cursor:pointer;
        font-size:16px;
        font-weight:600;
        color:var(--charcoal);
        background:transparent;
        transition:all var(--transition-fast);
        width:100%;
        text-align:left;
    }
    .faq-question:hover{
        background:var(--primary-light);
    }
    .faq-question .faq-arrow{
        flex-shrink:0;
        width:20px;
        height:20px;
        display:flex;
        align-items:center;
        justify-content:center;
        font-size:14px;
        color:var(--primary);
        transition:transform var(--transition-base);
    }
    .faq-item.open .faq-question .faq-arrow{
        transform:rotate(180deg);
    }
    .faq-answer{
        max-height:0;
        overflow:hidden;
        transition:max-height var(--transition-base), padding var(--transition-base);
        padding:0 20px;
    }
    .faq-item.open .faq-answer{
        max-height:200px;
        padding:0 20px 18px;
    }
    .faq-answer p{
        font-size:14px;
        color:var(--text-muted);
        line-height:1.8;
        margin-bottom:0;
    }
    /* ===== CTA Banner ===== */
    .cta-banner{
        background:var(--charcoal);
        border-radius:var(--radius-xl);
        padding:44px 40px;
        display:flex;
        align-items:center;
        justify-content:space-between;
        flex-wrap:wrap;
        gap:20px;
        position:relative;
        overflow:hidden;
    }
    .cta-banner::before{
        content:'';
        position:absolute;
        top:-40%;
        right:-10%;
        width:280px;
        height:280px;
        border-radius:50%;
        background:rgba(15,122,110,0.25);
        pointer-events:none;
    }
    .cta-banner::after{
        content:'';
        position:absolute;
        bottom:-30%;
        left:15%;
        width:180px;
        height:180px;
        border-radius:50%;
        background:rgba(255,107,53,0.18);
        pointer-events:none;
    }
    .cta-banner .cta-content{
        position:relative;
        z-index:1;
        flex:1;
        min-width:280px;
    }
    .cta-banner h3{
        font-size:24px;
        font-weight:700;
        color:#fff;
        margin-bottom:8px;
    }
    .cta-banner p{
        font-size:14px;
        color:rgba(255,255,255,0.7);
        margin-bottom:0;
    }
    .cta-banner .cta-actions{
        position:relative;
        z-index:1;
        display:flex;
        gap:12px;
        flex-wrap:wrap;
    }
    .btn{
        display:inline-flex;
        align-items:center;
        justify-content:center;
        gap:8px;
        padding:12px 24px;
        border-radius:var(--radius-sm);
        font-size:15px;
        font-weight:600;
        transition:all var(--transition-fast);
        text-decoration:none;
    }
    .btn-primary{
        background:var(--primary);
        color:#fff;
    }
    .btn-primary:hover{
        background:var(--primary-dark);
        color:#fff;
        transform:translateY(-2px);
        box-shadow:var(--shadow-md);
    }
    .btn-accent{
        background:var(--accent);
        color:#fff;
    }
    .btn-accent:hover{
        background:var(--accent-dark);
        color:#fff;
        transform:translateY(-2px);
        box-shadow:var(--shadow-md);
    }
    .btn-outline-light{
        background:transparent;
        color:#fff;
        border:1px solid rgba(255,255,255,0.5);
    }
    .btn-outline-light:hover{
        background:rgba(255,255,255,0.1);
        color:#fff;
        transform:translateY(-2px);
    }
    .btn-outline{
        background:transparent;
        color:var(--primary);
        border:1px solid var(--primary);
    }
    .btn-outline:hover{
        background:var(--primary-light);
        color:var(--primary-dark);
        transform:translateY(-2px);
    }
    /* ===== Footer ===== */
    .site-footer{
        background:var(--charcoal);
        color:rgba(255,255,255,0.75);
        padding:48px 0 24px;
        margin-top:auto;
    }
    .footer-grid{
        display:grid;
        grid-template-columns:2fr 1fr 1fr;
        gap:32px;
        margin-bottom:32px;
    }
    .footer-brand .logo-text{
        font-size:20px;
        font-weight:700;
        color:#fff;
        margin-bottom:12px;
    }
    .footer-brand .logo-text a{
        color:#fff;
    }
    .footer-brand .logo-text a:hover{
        color:#fff;
        opacity:0.8;
    }
    .footer-brand p{
        font-size:14px;
        line-height:1.7;
        color:rgba(255,255,255,0.65);
        max-width:320px;
        margin-bottom:0;
    }
    .footer-col h4{
        font-size:15px;
        font-weight:600;
        color:#fff;
        margin-bottom:14px;
    }
    .footer-col ul li{
        margin-bottom:8px;
    }
    .footer-col ul li a{
        font-size:14px;
        color:rgba(255,255,255,0.65);
        transition:color var(--transition-fast);
    }
    .footer-col ul li a:hover{
        color:#fff;
    }
    .footer-bottom{
        border-top:1px solid rgba(255,255,255,0.15);
        padding-top:16px;
        display:flex;
        align-items:center;
        justify-content:space-between;
        flex-wrap:wrap;
        gap:12px;
        font-size:13px;
        color:rgba(255,255,255,0.55);
    }
    .footer-bottom a{
        color:rgba(255,255,255,0.65);
        transition:color var(--transition-fast);
    }
    .footer-bottom a:hover{
        color:#fff;
    }
    .footer-bottom .sep{
        margin:0 8px;
        color:rgba(255,255,255,0.3);
    }
    /* ===== Responsive ===== */
    @media (max-width:1024px){
        .stats-grid{
            grid-template-columns:repeat(2,1fr);
        }
        .access-grid{
            grid-template-columns:repeat(2,1fr);
        }
        .process-steps{
            grid-template-columns:repeat(3,1fr);
        }
    }
    @media (max-width:768px){
        .container{
            padding:0 18px;
        }
        h1{
            font-size:28px;
        }
        h2{
            font-size:22px;
        }
        .page-hero{
            padding:24px 0 32px;
        }
        .page-hero h1{
            font-size:26px;
        }
        .service-list-grid{
            grid-template-columns:1fr;
        }
        .access-grid{
            grid-template-columns:1fr;
        }
        .process-steps{
            grid-template-columns:repeat(2,1fr);
        }
        .footer-grid{
            grid-template-columns:1fr;
            gap:24px;
        }
        .cta-banner{
            padding:32px 24px;
            flex-direction:column;
            text-align:center;
        }
        .cta-banner .cta-actions{
            justify-content:center;
        }
        .hamburger{
            display:flex;
        }
        .nav-bar .desktop-only{
            display:none;
        }
        .hot-tags{
            display:none;
        }
        .search-box{
            display:none;
        }
        .search-box.active{
            display:flex;
        }
        .header-tools{
            gap:8px;
        }
    }
    @media (max-width:520px){
        .container{
            padding:0 14px;
        }
        h1{
            font-size:24px;
        }
        h2{
            font-size:20px;
        }
        .stats-grid{
            grid-template-columns:1fr;
            gap:10px;
        }
        .process-steps{
            grid-template-columns:1fr;
        }
        .stat-badge{
            padding:14px 16px;
        }
        .stat-badge .stat-number{
            font-size:24px;
        }
        .section{
            padding:40px 0;
        }
        .page-hero .h1-row{
            flex-direction:column;
            align-items:flex-start;
        }
        .service-card .card-img{
            height:150px;
        }
    }

/* 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}