/* roulang page: index */
:root {
            --primary: #1B6CA8;
            --primary-hover: #155485;
            --secondary-bg: #E8F0F7;
            --dark-title: #2C3E50;
            --h1-color: #1B2A38;
            --body-text: #333333;
            --muted: #666666;
            --light-muted: #888888;
            --border: #E0E0E0;
            --light-bg: #F5F7FA;
            --card-bg: #FFFFFF;
            --success: #2E8B57;
            --danger: #C0392B;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 16px rgba(27, 108, 168, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --font-data: 'Inter', 'Roboto', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --section-padding: 64px 0;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--body-text);
            background: #FBFCFE;
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
            outline: none;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
        }

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

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #1B6CA8 0%, #2E8B57 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--h1-color);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text a {
            color: var(--h1-color);
            text-decoration: none;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
        }

        .menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--body-text);
            cursor: pointer;
            transition: var(--transition);
            font-size: 20px;
        }

        .menu-toggle:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Drawer Navigation */
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .drawer-panel {
            position: fixed;
            top: 0;
            right: -420px;
            width: 380px;
            max-width: 85vw;
            height: 100%;
            background: #fff;
            z-index: 1000;
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
            transition: right 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
            display: flex;
            flex-direction: column;
            padding: 28px 32px;
            overflow-y: auto;
        }

        .drawer-panel.open {
            right: 0;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border);
        }

        .drawer-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--h1-color);
        }

        .drawer-close {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            color: var(--body-text);
        }

        .drawer-close:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .drawer-nav a {
            display: flex;
            align-items: center;
            padding: 16px 18px;
            font-size: 18px;
            font-weight: 600;
            color: var(--dark-title);
            border-radius: 8px;
            transition: var(--transition);
            border-left: 3px solid transparent;
        }

        .drawer-nav a:hover,
        .drawer-nav a.active {
            background: var(--secondary-bg);
            border-left-color: var(--primary);
            color: var(--primary);
        }

        .drawer-nav a .nav-icon {
            font-size: 18px;
            margin-right: 12px;
            color: var(--primary);
            width: 24px;
            text-align: center;
        }

        .drawer-footer {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--light-muted);
        }

        .drawer-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            padding: 12px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            margin-top: 16px;
            text-align: center;
        }

        .drawer-cta:hover {
            background: var(--primary-hover);
            color: #fff;
        }

        /* Hero */
        .section-hero {
            background: linear-gradient(180deg, #F5F9FC 0%, #FFFFFF 100%);
            padding: 80px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .section-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -160px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(27, 108, 168, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--secondary-bg);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            width: fit-content;
        }

        .hero-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 700;
            color: var(--h1-color);
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin: 0;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 520px;
            margin: 0;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 6px 20px rgba(27, 108, 168, 0.3);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--primary);
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }

        .btn-secondary:hover {
            background: var(--secondary-bg);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }

        .hero-trust {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--light-muted);
        }

        .hero-trust span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .hero-trust i {
            color: var(--success);
            font-size: 14px;
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .data-panel {
            width: 100%;
            max-width: 480px;
            background: #fff;
            border-radius: 14px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            border: 1px solid var(--border);
            overflow: hidden;
        }

        .data-panel-header {
            background: var(--h1-color);
            color: #fff;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 14px;
            font-weight: 600;
        }

        .data-panel-header .live-dot {
            width: 8px;
            height: 8px;
            background: #2ECC71;
            border-radius: 50%;
            display: inline-block;
            animation: pulse 1.5s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.5);
            }
            70% {
                box-shadow: 0 0 0 8px rgba(46, 204, 113, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(46, 204, 113, 0);
            }
        }

        .data-panel-body {
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .data-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 14px;
            background: var(--light-bg);
            border-radius: 8px;
            transition: var(--transition);
        }

        .data-row:hover {
            background: var(--secondary-bg);
        }

        .data-team {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--dark-title);
            font-size: 14px;
        }

        .data-score {
            font-family: var(--font-data);
            font-weight: 700;
            font-size: 20px;
            color: var(--primary);
        }

        .data-status {
            font-size: 12px;
            color: var(--light-muted);
            background: #fff;
            padding: 4px 10px;
            border-radius: 12px;
            border: 1px solid var(--border);
        }

        .data-status.live {
            color: var(--danger);
            border-color: #f5c6cb;
            background: #fef2f2;
        }

        /* Section Common */
        .section-block {
            padding: var(--section-padding);
        }

        .section-block:nth-child(even) {
            background: #fff;
        }

        .section-block:nth-child(odd) {
            background: var(--light-bg);
        }

        .section-title {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            color: var(--dark-title);
            margin: 0 0 12px;
            line-height: 1.35;
        }

        .section-desc {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
            margin: 0 0 32px;
        }

        .section-header {
            margin-bottom: 36px;
        }

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

        .link-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }

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

        /* Cards */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--secondary-bg);
        }

        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .card:hover .card-image img {
            transform: scale(1.03);
        }

        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 600;
        }

        .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            font-size: 12px;
            color: var(--light-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* Grid System */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

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

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .grid-5 {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }

        /* Search Section */
        .search-box {
            display: flex;
            align-items: center;
            gap: 0;
            max-width: 640px;
            margin: 0 auto;
            border: 2px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 108, 168, 0.1);
        }

        .search-input {
            flex: 1;
            border: none;
            padding: 14px 20px;
            font-size: 15px;
            background: #fff;
            color: var(--body-text);
            outline: none;
            min-width: 0;
        }

        .search-btn {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 14px 24px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
        }

        .search-btn:hover {
            background: var(--primary-hover);
        }

        .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 18px;
            justify-content: center;
        }

        .hot-tag {
            display: inline-flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            color: var(--muted);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition);
        }

        .hot-tag:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* List Items */
        .list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 18px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            margin-bottom: 10px;
            transition: var(--transition);
            flex-wrap: wrap;
        }

        .list-item:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }

        .list-rank {
            font-family: var(--font-data);
            font-weight: 700;
            font-size: 22px;
            color: var(--primary);
            width: 40px;
            text-align: center;
            flex-shrink: 0;
        }

        .list-info {
            flex: 1;
            min-width: 180px;
        }

        .list-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 4px;
        }

        .list-desc {
            font-size: 13px;
            color: var(--muted);
            margin: 0;
        }

        .list-badge {
            background: var(--success);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .list-badge.warning {
            background: #F39C12;
        }

        /* Compare Table */
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }

        .compare-table th,
        .compare-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
        }

        .compare-table th {
            background: var(--h1-color);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
        }

        .compare-table th:first-child {
            border-radius: 0;
        }

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

        .compare-table tbody tr:hover {
            background: var(--light-bg);
        }

        .compare-highlight {
            color: var(--primary);
            font-weight: 700;
        }

        .compare-check {
            color: var(--success);
            font-weight: 700;
        }

        .compare-dash {
            color: var(--light-muted);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            background: #fff;
            transition: var(--transition);
            overflow: hidden;
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--dark-title);
            text-align: left;
            font-family: var(--font-sans);
            transition: var(--transition);
        }

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

        .faq-icon {
            flex-shrink: 0;
            font-size: 16px;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            margin: 0;
        }

        /* Guarantee Bar */
        .guarantee-bar {
            background: var(--secondary-bg);
            border-radius: 12px;
            padding: 28px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--dark-title);
            font-weight: 600;
        }

        .guarantee-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            border: 1px solid var(--border);
        }

        /* Subscription */
        .subscribe-box {
            background: var(--h1-color);
            border-radius: 14px;
            padding: 40px 36px;
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
            color: #fff;
        }

        .subscribe-content {
            flex: 1;
            min-width: 240px;
        }

        .subscribe-title {
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 8px;
        }

        .subscribe-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex: 1;
            min-width: 280px;
            flex-wrap: wrap;
        }

        .subscribe-input {
            flex: 1;
            border: none;
            border-radius: 6px;
            padding: 12px 18px;
            font-size: 14px;
            background: #fff;
            color: var(--body-text);
            outline: none;
            min-width: 200px;
        }

        .subscribe-btn {
            background: var(--success);
            color: #fff;
            border: none;
            border-radius: 6px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .subscribe-btn:hover {
            background: #247a4a;
            box-shadow: 0 4px 14px rgba(46, 139, 87, 0.4);
        }

        /* Footer */
        .site-footer {
            background: #1B2A38;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
            font-size: 14px;
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            justify-content: space-between;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }

        .footer-info {
            flex: 1;
            min-width: 240px;
            text-align: center;
        }

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            font-size: 13px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-top: 32px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* Bottom Fixed CTA */
        .bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
            z-index: 900;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: transform 0.3s ease;
        }

        .bottom-cta.hidden {
            transform: translateY(100%);
        }

        .bottom-cta-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark-title);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .bottom-cta-btn {
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .bottom-cta-btn:hover {
            background: var(--primary-hover);
        }

        .bottom-cta-close {
            background: none;
            border: none;
            color: var(--light-muted);
            font-size: 18px;
            cursor: pointer;
            padding: 4px 8px;
            transition: var(--transition);
        }

        .bottom-cta-close:hover {
            color: var(--danger);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-5 {
                grid-template-columns: repeat(3, 1fr);
            }
            .guarantee-bar {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 48px 0;
            }

            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-inner {
                height: 56px;
            }

            .logo-text {
                font-size: 17px;
            }

            .header-cta span {
                display: none;
            }
            .header-cta {
                padding: 10px 14px;
                font-size: 13px;
            }

            .section-hero {
                padding: 56px 0 48px;
            }

            .hero-title {
                font-size: 26px;
            }

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

            .grid-2,
            .grid-3,
            .grid-4,
            .grid-5 {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .guarantee-bar {
                grid-template-columns: 1fr;
                padding: 20px;
            }

            .subscribe-box {
                padding: 28px 20px;
                flex-direction: column;
                align-items: stretch;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-input {
                min-width: 100%;
            }

            .subscribe-btn {
                justify-content: center;
            }

            .drawer-panel {
                width: 100vw;
                max-width: 100vw;
                right: -100vw;
            }

            .footer-inner {
                flex-direction: column;
                text-align: center;
            }

            .footer-info {
                text-align: center;
            }

            .bottom-cta {
                padding: 8px 12px;
            }
            .bottom-cta-text {
                font-size: 12px;
            }
            .bottom-cta-btn {
                padding: 8px 14px;
                font-size: 12px;
            }
            .compare-table {
                font-size: 12px;
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 22px;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .data-panel {
                max-width: 100%;
            }

            .list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .list-rank {
                width: auto;
                font-size: 18px;
            }
        }

        /* Utility */
        .text-primary {
            color: var(--primary);
        }
        .text-success {
            color: var(--success);
        }
        .font-data {
            font-family: var(--font-data);
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }

/* roulang page: category1 */
:root {
            --primary: #1B6CA8;
            --primary-hover: #155485;
            --secondary-bg: #E8F0F7;
            --dark-title: #2C3E50;
            --h1-color: #1B2A38;
            --body-text: #333333;
            --muted: #666666;
            --light-muted: #888888;
            --border: #E0E0E0;
            --light-bg: #F5F7FA;
            --card-bg: #FFFFFF;
            --success: #2E8B57;
            --danger: #C0392B;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 16px rgba(27, 108, 168, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --font-data: 'Inter', 'Roboto', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --section-padding: 64px 0;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--body-text);
            background: #FBFCFE;
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
        }

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

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* === Header / Navigation === */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #1B6CA8 0%, #2E8B57 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--h1-color);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text a {
            color: var(--h1-color);
            text-decoration: none;
        }
        .logo-text a:hover {
            color: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .header-cta:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
        }

        .menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--body-text);
            cursor: pointer;
            transition: var(--transition);
            font-size: 20px;
        }
        .menu-toggle:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Drawer Navigation */
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .drawer-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .drawer-panel {
            position: fixed;
            top: 0;
            right: -420px;
            width: 380px;
            max-width: 85vw;
            height: 100%;
            background: #fff;
            z-index: 1000;
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
            transition: right 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
            display: flex;
            flex-direction: column;
            padding: 28px 32px;
            overflow-y: auto;
        }
        .drawer-panel.open {
            right: 0;
        }

        .drawer-close {
            align-self: flex-end;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--body-text);
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            margin-bottom: 24px;
        }
        .drawer-close:hover {
            background: var(--secondary-bg);
            color: var(--primary);
            border-color: var(--primary);
        }

        .drawer-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--h1-color);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            font-size: 18px;
            font-weight: 600;
            color: var(--body-text);
            border-radius: var(--radius-card);
            border-left: 3px solid transparent;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }
        .drawer-nav a i {
            width: 22px;
            text-align: center;
            font-size: 16px;
            color: var(--light-muted);
            transition: var(--transition);
        }
        .drawer-nav a:hover {
            background: var(--secondary-bg);
            color: var(--primary);
        }
        .drawer-nav a:hover i {
            color: var(--primary);
        }
        .drawer-nav a.active {
            background: var(--secondary-bg);
            color: var(--primary);
            border-left-color: var(--primary);
        }
        .drawer-nav a.active i {
            color: var(--primary);
        }

        .drawer-sub-text {
            font-size: 13px;
            color: var(--light-muted);
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }

        /* === Page Hero (分类页H1首屏) === */
        .page-hero {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }
        .page-hero-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .page-hero-text {
            flex: 1 1 320px;
        }
        .page-hero-text h1 {
            font-size: 30px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--h1-color);
            letter-spacing: 0.5px;
            line-height: 1.35;
        }
        .page-hero-text p {
            font-size: 15px;
            color: var(--muted);
            margin: 0;
            max-width: 620px;
            line-height: 1.75;
        }
        .page-hero-badge {
            flex-shrink: 0;
            background: var(--secondary-bg);
            color: var(--primary);
            padding: 10px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* === Breadcrumb === */
        .breadcrumb-section {
            background: #fff;
            padding: 12px 0;
            border-bottom: 1px solid #f0f0f0;
        }
        .breadcrumb-section .container-main {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--light-muted);
        }
        .breadcrumb-section a {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb-section a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }
        .breadcrumb-sep {
            color: #bbb;
        }

        /* === Section Common === */
        .section-block {
            padding: 48px 0;
        }
        .section-block.alt-bg {
            background: var(--light-bg);
        }
        .section-heading {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark-title);
            margin: 0 0 8px;
            letter-spacing: 0.5px;
        }
        .section-sub {
            font-size: 14px;
            color: var(--muted);
            margin: 0 0 28px;
            max-width: 700px;
            line-height: 1.7;
        }

        /* === Cards Grid (列表主体) === */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid #E8E8E8;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .article-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .article-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark-title);
            line-height: 1.5;
            margin: 0 0 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-title a {
            color: var(--dark-title);
        }
        .article-card-title a:hover {
            color: var(--primary);
        }
        .article-card-summary {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.65;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            font-size: 12px;
            color: var(--light-muted);
            border-top: 1px solid #f0f0f0;
            padding-top: 12px;
        }
        .article-card-tag {
            background: var(--secondary-bg);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            font-size: 11px;
            font-weight: 600;
            white-space: nowrap;
        }

        /* === More Link === */
        .more-link-wrap {
            text-align: center;
            margin-top: 28px;
        }
        .btn-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            color: var(--primary);
            padding: 10px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-more:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary-hover);
            box-shadow: 0 3px 10px rgba(27, 108, 168, 0.15);
        }

        /* === Hot Ranking === */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--card-bg);
            border: 1px solid #E8E8E8;
            border-radius: var(--radius-card);
            padding: 14px 18px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .ranking-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }
        .ranking-num {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            font-family: var(--font-data);
            background: var(--secondary-bg);
            color: var(--primary);
        }
        .ranking-num.top1 {
            background: #FFD700;
            color: #7A6200;
        }
        .ranking-num.top2 {
            background: #C0C0C0;
            color: #4A4A4A;
        }
        .ranking-num.top3 {
            background: #CD7F32;
            color: #fff;
        }
        .ranking-content {
            flex: 1;
            min-width: 0;
        }
        .ranking-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .ranking-desc {
            font-size: 12px;
            color: var(--light-muted);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .ranking-value {
            font-size: 18px;
            font-weight: 700;
            font-family: var(--font-data);
            color: var(--primary);
            flex-shrink: 0;
        }

        /* === Data Overview === */
        .data-overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .data-stat-card {
            background: var(--card-bg);
            border: 1px solid #E8E8E8;
            border-radius: var(--radius-card);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .data-stat-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .data-stat-num {
            font-size: 28px;
            font-weight: 700;
            font-family: var(--font-data);
            color: var(--primary);
            line-height: 1.3;
        }
        .data-stat-label {
            font-size: 13px;
            color: var(--muted);
            margin-top: 4px;
        }

        /* === Tag Cloud === */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud a {
            display: inline-block;
            background: var(--card-bg);
            border: 1px solid var(--border);
            color: var(--muted);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* === Subscription CTA === */
        .subscribe-box {
            background: var(--secondary-bg);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            justify-content: space-between;
        }
        .subscribe-box-text {
            flex: 1 1 260px;
        }
        .subscribe-box-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--dark-title);
            margin: 0 0 6px;
        }
        .subscribe-box-text p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex: 1 1 280px;
            max-width: 460px;
            width: 100%;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 11px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: #fff;
            font-size: 14px;
            transition: var(--transition);
            min-width: 0;
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(27, 108, 168, 0.12);
        }
        .subscribe-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 11px 24px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-form button:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
        }

        /* === FAQ Accordion === */
        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid #E8E8E8;
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .faq-item:hover {
            border-color: #ccc;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--dark-title);
            text-align: left;
            transition: var(--transition);
            letter-spacing: 0.2px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--light-muted);
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin: 0;
        }

        /* === Footer === */
        .site-footer {
            background: #1B2A38;
            color: rgba(255, 255, 255, 0.75);
            padding: 40px 0 20px;
            font-size: 14px;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: space-between;
            align-items: flex-start;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .footer-info {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

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

        @media (max-width: 768px) {
            :root {
                --section-padding: 40px 0;
            }
            .section-block {
                padding: 36px 0;
            }
            .page-hero {
                padding: 24px 0;
            }
            .page-hero-text h1 {
                font-size: 24px;
            }
            .page-hero-badge {
                display: none;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .data-overview-grid {
                grid-template-columns: 1fr 1fr;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: stretch;
                text-align: left;
            }
        }

        @media (max-width: 520px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-cta span {
                display: none;
            }
            .header-cta {
                padding: 10px 14px;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .data-overview-grid {
                grid-template-columns: 1fr;
            }
            .article-card-img {
                height: 160px;
            }
            .section-heading {
                font-size: 20px;
            }
            .subscribe-form {
                flex-direction: column;
                gap: 10px;
                max-width: 100%;
            }
            .subscribe-form button {
                width: 100%;
            }
            .drawer-panel {
                width: 90vw;
                padding: 20px 22px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1B6CA8;
            --primary-hover: #155485;
            --secondary-bg: #E8F0F7;
            --dark-title: #2C3E50;
            --h1-color: #1B2A38;
            --body-text: #333333;
            --muted: #666666;
            --light-muted: #888888;
            --border: #E0E0E0;
            --light-bg: #F5F7FA;
            --card-bg: #FFFFFF;
            --success: #2E8B57;
            --danger: #C0392B;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 16px rgba(27, 108, 168, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --font-data: 'Inter', 'Roboto', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --section-padding: 48px 0;
            --transition: all 0.25s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--body-text);
            background: #FBFCFE;
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
            outline: none;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
        }

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

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #1B6CA8 0%, #2E8B57 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--h1-color);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text a {
            color: var(--h1-color);
            text-decoration: none;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
        }

        .menu-toggle {
            display: flex !important;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--body-text);
            cursor: pointer;
            transition: var(--transition);
            font-size: 20px;
        }

        .menu-toggle:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .drawer-panel {
            position: fixed;
            top: 0;
            right: -420px;
            width: 380px;
            max-width: 85vw;
            height: 100%;
            background: #fff;
            z-index: 1000;
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
            transition: right 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
            display: flex;
            flex-direction: column;
            padding: 28px 32px;
            overflow-y: auto;
        }

        .drawer-panel.open {
            right: 0;
        }

        .drawer-close {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--body-text);
            cursor: pointer;
            transition: var(--transition);
            font-size: 18px;
            align-self: flex-end;
            margin-bottom: 24px;
            flex-shrink: 0;
        }

        .drawer-close:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .drawer-nav a {
            font-size: 21px;
            font-weight: 600;
            color: var(--h1-color);
            padding: 12px 16px;
            border-radius: 8px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .drawer-nav a:hover {
            background: var(--secondary-bg);
            color: var(--primary);
        }

        .drawer-nav a.active {
            background: var(--secondary-bg);
            color: var(--primary);
            border-left: 3px solid var(--primary);
        }

        .drawer-nav a i {
            font-size: 18px;
            width: 24px;
            text-align: center;
        }

        .drawer-sub {
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

        .drawer-sub-title {
            font-size: 13px;
            color: var(--light-muted);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .drawer-sub-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .drawer-sub-links a {
            font-size: 14px;
            color: var(--muted);
            padding: 6px 12px;
            border-radius: 4px;
            background: var(--light-bg);
            border: 1px solid var(--border);
            font-weight: 400;
        }

        .drawer-sub-links a:hover {
            background: var(--secondary-bg);
            color: var(--primary);
            border-color: var(--primary);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--light-muted);
            font-size: 12px;
        }

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

        .category-hero {
            background: #fff;
            padding: 48px 0 32px;
            border-bottom: 1px solid var(--border);
        }

        .category-hero-inner {
            display: flex;
            align-items: flex-start;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero-title-wrapper {
            flex: 0 0 auto;
            max-width: 55%;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--h1-color);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .category-hero .category-hero-description {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }

        .category-hero-indicator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--light-muted);
            margin-bottom: 12px;
        }

        .category-hero-indicator i {
            font-size: 12px;
            color: var(--primary);
        }

        .section-block {
            padding: var(--section-padding);
        }

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

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--dark-title);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .section-desc {
            font-size: 15px;
            color: var(--muted);
            margin: 0 0 32px;
            line-height: 1.7;
        }

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

        .article-card {
            background: var(--card-bg);
            border: 1px solid #E8E8E8;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .article-card-image {
            width: 100%;
            height: 180px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

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

        .article-card-tag {
            display: inline-block;
            background: var(--secondary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .article-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card:hover .article-card-title {
            color: var(--primary);
        }

        .article-card-excerpt {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
            margin: 0 0 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--light-muted);
            margin-top: auto;
        }

        .article-card-meta i {
            font-size: 12px;
            margin-right: 4px;
        }

        .load-more-wrapper {
            text-align: center;
            margin-top: 32px;
        }

        .load-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
            cursor: pointer;
        }

        .load-more-link:hover {
            background: var(--secondary-bg);
            color: var(--primary);
            border-color: var(--primary);
        }

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

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--card-bg);
            border: 1px solid #E8E8E8;
            border-radius: var(--radius-card);
            padding: 16px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .ranking-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }

        .ranking-number {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--secondary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .ranking-item:nth-child(1) .ranking-number {
            background: #FFD700;
            color: #1B2A38;
        }

        .ranking-item:nth-child(2) .ranking-number {
            background: #C0C0C0;
            color: #1B2A38;
        }

        .ranking-item:nth-child(3) .ranking-number {
            background: #CD7F32;
            color: #fff;
        }

        .ranking-content {
            flex: 1;
        }

        .ranking-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 4px;
        }

        .ranking-meta {
            font-size: 12px;
            color: var(--light-muted);
        }

        .ranking-thumb {
            flex-shrink: 0;
            width: 56px;
            height: 42px;
            border-radius: 4px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

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

        .data-snapshot-card {
            background: var(--card-bg);
            border: 1px solid #E8E8E8;
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .data-snapshot-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }

        .data-snapshot-value {
            font-size: 32px;
            font-weight: 700;
            font-family: var(--font-data);
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .data-snapshot-label {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud a {
            display: inline-block;
            background: #fff;
            border: 1px solid var(--border);
            color: var(--muted);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            transition: var(--transition);
        }

        .tag-cloud a:hover {
            background: var(--secondary-bg);
            color: var(--primary);
            border-color: var(--primary);
        }

        .faq-section .accordion {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .faq-section .accordion-item {
            margin-bottom: 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--card-bg);
            box-shadow: var(--shadow-card);
        }

        .faq-section .accordion-title {
            display: block;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark-title);
            background: var(--card-bg);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
            text-align: left;
        }

        .faq-section .accordion-title:hover {
            color: var(--primary);
            background: var(--light-bg);
        }

        .faq-section .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 24px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 14px;
            transition: var(--transition);
        }

        .faq-section .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(180deg);
        }

        .faq-section .accordion-content {
            padding: 0 24px 20px;
            border-top: 1px solid var(--border);
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
        }

        .faq-section .accordion-content p {
            margin: 16px 0 0;
        }

        .subscribe-cta-section {
            background: var(--secondary-bg);
            padding: var(--section-padding);
        }

        .subscribe-cta-inner {
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }

        .subscribe-cta-inner .section-title {
            margin-bottom: 8px;
        }

        .subscribe-cta-inner .section-desc {
            margin-bottom: 24px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .subscribe-input {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            font-size: 15px;
            background: #fff;
            transition: var(--transition);
            outline: none;
        }

        .subscribe-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(27, 108, 168, 0.1);
        }

        .subscribe-btn {
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .subscribe-btn:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
        }

        .subscribe-note {
            font-size: 13px;
            color: var(--light-muted);
            margin-top: 12px;
        }

        .site-footer {
            background: #1B2A38;
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 32px;
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            min-width: 160px;
        }

        .footer-info {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-left: auto;
            align-items: flex-start;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-bottom p {
            margin: 0 0 8px;
        }

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

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

        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero-title-wrapper {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 32px 0;
            }
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                height: 56px;
            }
            .logo-text {
                font-size: 18px;
            }
            .header-cta span {
                display: none;
            }
            .header-cta {
                padding: 10px 12px;
            }
            .menu-toggle {
                width: 40px;
                height: 40px;
            }
            .category-hero {
                padding: 32px 0 24px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero-inner {
                flex-direction: column;
                gap: 16px;
            }
            .category-hero-title-wrapper {
                max-width: 100%;
            }
            .section-title {
                font-size: 22px;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .article-card-image {
                height: 160px;
            }
            .data-snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-snapshot-value {
                font-size: 26px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-input {
                min-width: 100%;
            }
            .subscribe-btn {
                width: 100%;
            }
            .ranking-item {
                padding: 12px 14px;
                gap: 10px;
            }
            .ranking-number {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .ranking-thumb {
                width: 44px;
                height: 34px;
            }
            .drawer-panel {
                width: 100%;
                max-width: 100%;
                right: -100%;
            }
            .footer-inner {
                flex-direction: column;
                gap: 20px;
            }
            .footer-links {
                margin-left: 0;
            }
        }

        @media (max-width: 520px) {
            .data-snapshot-grid {
                grid-template-columns: 1fr;
            }
            .tag-cloud a {
                font-size: 13px;
                padding: 6px 12px;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .article-card-body {
                padding: 16px;
            }
            .article-card-title {
                font-size: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1B6CA8;
            --primary-hover: #155485;
            --secondary-bg: #E8F0F7;
            --dark-title: #2C3E50;
            --h1-color: #1B2A38;
            --body-text: #333333;
            --muted: #666666;
            --light-muted: #888888;
            --border: #E0E0E0;
            --light-bg: #F5F7FA;
            --card-bg: #FFFFFF;
            --success: #2E8B57;
            --danger: #C0392B;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 16px rgba(27, 108, 168, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --font-data: 'Inter', 'Roboto', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --section-padding: 48px 0;
            --transition: all 0.25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--body-text);
            background: #FBFCFE;
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
            outline: none;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
        }

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

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #1B6CA8 0%, #2E8B57 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--h1-color);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo-text a {
            color: var(--h1-color);
            text-decoration: none;
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
        }

        .menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--body-text);
            cursor: pointer;
            transition: var(--transition);
            font-size: 20px;
        }

        .menu-toggle:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Drawer */
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .drawer-panel {
            position: fixed;
            top: 0;
            right: -420px;
            width: 380px;
            max-width: 85vw;
            height: 100%;
            background: #fff;
            z-index: 1000;
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
            transition: right 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
            display: flex;
            flex-direction: column;
            padding: 28px 32px;
            overflow-y: auto;
        }

        .drawer-panel.open {
            right: 0;
        }

        .drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 28px;
            color: var(--muted);
            cursor: pointer;
            transition: var(--transition);
            padding: 8px;
            line-height: 1;
        }

        .drawer-close:hover {
            color: var(--danger);
            transform: rotate(90deg);
        }

        .drawer-nav {
            list-style: none;
            padding: 0;
            margin: 24px 0 0;
        }

        .drawer-nav li {
            margin-bottom: 8px;
        }

        .drawer-nav a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 16px;
            border-radius: 8px;
            font-size: 20px;
            font-weight: 600;
            color: var(--dark-title);
            transition: var(--transition);
            border-left: 3px solid transparent;
        }

        .drawer-nav a:hover {
            background: var(--secondary-bg);
            color: var(--primary);
        }

        .drawer-nav a.active {
            background: var(--secondary-bg);
            color: var(--primary);
            border-left-color: var(--primary);
        }

        .drawer-nav a .nav-arrow {
            font-size: 14px;
            color: var(--light-muted);
        }

        .drawer-subtitle {
            font-size: 13px;
            color: var(--light-muted);
            font-weight: 400;
            display: block;
            margin-top: 2px;
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--light-muted);
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: var(--border);
            margin-left: 4px;
        }

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

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

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

        /* H1 Hero */
        .category-hero {
            background: #fff;
            padding: 32px 0 28px;
            border-bottom: 1px solid var(--border);
        }

        .category-hero-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .category-hero-left {
            flex: 1 1 55%;
            min-width: 260px;
        }

        .category-hero-left h1 {
            font-size: 30px;
            font-weight: 700;
            color: var(--h1-color);
            margin: 0 0 10px;
            line-height: 1.3;
        }

        .category-hero-left .hero-tagline {
            font-size: 16px;
            color: var(--muted);
            margin: 0;
            line-height: 1.7;
        }

        .category-hero-right {
            flex: 1 1 35%;
            min-width: 220px;
            background: var(--light-bg);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            border: 1px solid var(--border);
        }

        .category-hero-right p {
            margin: 0;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        .category-hero-right strong {
            color: var(--primary);
            font-weight: 600;
        }

        /* Section Shared */
        .section-block {
            padding: var(--section-padding);
        }

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

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark-title);
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--muted);
            margin: 0 0 28px;
            line-height: 1.7;
        }

        .section-header {
            margin-bottom: 24px;
        }

        .section-header.with-line {
            border-bottom: 2px solid var(--secondary-bg);
            padding-bottom: 16px;
        }

        /* Card Grid */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .article-card .card-img-wrap {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--secondary-bg);
            flex-shrink: 0;
        }

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

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

        .article-card .card-body {
            padding: 18px 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card .card-tag {
            display: inline-block;
            background: var(--secondary-bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .article-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }

        .article-card:hover .card-title {
            color: var(--primary);
        }

        .article-card .card-excerpt {
            font-size: 14px;
            color: var(--muted);
            margin: 0 0 14px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }

        .article-card .card-meta {
            font-size: 13px;
            color: var(--light-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .article-card .card-meta i {
            font-size: 12px;
            color: var(--primary);
        }

        /* More Link */
        .more-link-wrap {
            text-align: center;
            margin-top: 28px;
        }

        .more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
            padding: 10px 24px;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            transition: var(--transition);
            background: transparent;
        }

        .more-link:hover {
            background: var(--secondary-bg);
            color: var(--primary-hover);
            border-color: var(--primary-hover);
        }

        /* Hot Ranking */
        .hot-ranking-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .hot-ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 14px 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .hot-ranking-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }

        .ranking-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--secondary-bg);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-family: var(--font-data);
        }

        .ranking-number.top1 {
            background: var(--primary);
            color: #fff;
        }

        .ranking-number.top2 {
            background: #4A90D9;
            color: #fff;
        }

        .ranking-number.top3 {
            background: #6EB1E6;
            color: #fff;
        }

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

        .ranking-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-content p {
            font-size: 13px;
            color: var(--light-muted);
            margin: 0;
        }

        /* Data Snapshot */
        .data-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .snapshot-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 22px 20px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

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

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

        .snapshot-card .snapshot-number {
            font-size: 32px;
            font-weight: 700;
            font-family: var(--font-data);
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .snapshot-card .snapshot-label {
            font-size: 13px;
            color: var(--muted);
            margin: 0;
        }

        /* Scenario Guide */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .scenario-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }

        .scenario-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--secondary-bg);
        }

        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .scenario-body {
            padding: 18px;
        }

        .scenario-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .scenario-body p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.7;
        }

        /* Subscribe CTA */
        .subscribe-cta-section {
            background: var(--primary);
            padding: 48px 0;
        }

        .subscribe-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .subscribe-cta-text {
            flex: 1 1 50%;
            min-width: 260px;
        }

        .subscribe-cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
            line-height: 1.3;
        }

        .subscribe-cta-text p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
            line-height: 1.7;
        }

        .subscribe-form {
            flex: 1 1 40%;
            min-width: 280px;
            display: flex;
            gap: 12px;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 12px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 15px;
            transition: var(--transition);
            min-width: 0;
        }

        .subscribe-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: #fff;
            background: rgba(255, 255, 255, 0.2);
        }

        .subscribe-form button {
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background: var(--secondary-bg);
            color: var(--primary-hover);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
        }

        /* FAQ */
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--dark-title);
            transition: var(--transition);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
            line-height: 1.5;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: #1B2A38;
            padding: 40px 0 24px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: flex-start;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .footer-info p {
            margin: 0;
            font-size: 13px;
            line-height: 1.7;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 20px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 13px;
            line-height: 1.8;
        }

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

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

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

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

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

            .hot-ranking-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 32px 0;
            }

            .category-hero-inner {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .category-hero-right {
                width: 100%;
            }

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

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

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

            .subscribe-cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .subscribe-form {
                flex-direction: column;
                width: 100%;
            }

            .subscribe-form button {
                width: 100%;
            }

            .header-cta span {
                display: none;
            }

            .header-cta {
                padding: 10px 14px;
            }

            .hot-ranking-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .data-snapshot-grid {
                grid-template-columns: 1fr;
            }

            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-hero {
                padding: 22px 0 18px;
            }

            .category-hero-left h1 {
                font-size: 21px;
            }

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

            .footer-inner {
                flex-direction: column;
                gap: 16px;
            }

            .footer-links {
                gap: 10px 14px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1B6CA8;
            --primary-hover: #155485;
            --secondary-bg: #E8F0F7;
            --dark-title: #2C3E50;
            --h1-color: #1B2A38;
            --body-text: #333333;
            --muted: #666666;
            --light-muted: #888888;
            --border: #E0E0E0;
            --light-bg: #F5F7FA;
            --card-bg: #FFFFFF;
            --success: #2E8B57;
            --danger: #C0392B;
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 4px 16px rgba(27, 108, 168, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --font-data: 'Inter', 'Roboto', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --section-padding: 48px 0;
            --transition: all 0.25s ease;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--body-text);
            background: #FBFCFE;
            line-height: 1.7;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary-hover);
            text-decoration: none;
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .container-main::after {
            content: '';
            display: table;
            clear: both;
        }
        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, #1B6CA8 0%, #2E8B57 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--h1-color);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo-text a {
            color: var(--h1-color);
            text-decoration: none;
        }
        .logo-text a:hover {
            color: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .header-cta:hover,
        .header-cta:focus {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
        }
        .menu-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--body-text);
            cursor: pointer;
            transition: var(--transition);
            font-size: 20px;
            flex-shrink: 0;
        }
        .menu-toggle:hover,
        .menu-toggle:focus {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }
        /* Drawer Navigation */
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .drawer-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .drawer-panel {
            position: fixed;
            top: 0;
            right: -420px;
            width: 380px;
            max-width: 85vw;
            height: 100%;
            background: #fff;
            z-index: 1000;
            box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
            transition: right 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
            display: flex;
            flex-direction: column;
            padding: 28px 32px;
            overflow-y: auto;
        }
        .drawer-panel.open {
            right: 0;
        }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-shrink: 0;
        }
        .drawer-close {
            width: 36px;
            height: 36px;
            border-radius: 6px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--body-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: var(--transition);
        }
        .drawer-close:hover {
            background: var(--secondary-bg);
            border-color: var(--primary);
            color: var(--primary);
        }
        .drawer-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .drawer-nav-list li a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 16px;
            border-radius: 8px;
            font-size: 20px;
            font-weight: 600;
            color: var(--dark-title);
            text-decoration: none;
            transition: var(--transition);
            border-left: 3px solid transparent;
        }
        .drawer-nav-list li a:hover {
            background: var(--secondary-bg);
            color: var(--primary);
        }
        .drawer-nav-list li a.active {
            color: var(--primary);
            background: var(--secondary-bg);
            border-left-color: var(--primary);
        }
        .drawer-nav-list li a .nav-arrow {
            font-size: 14px;
            color: var(--light-muted);
            transition: var(--transition);
        }
        .drawer-nav-list li a:hover .nav-arrow {
            color: var(--primary);
            transform: translateX(2px);
        }
        .drawer-secondary {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            flex-shrink: 0;
        }
        .drawer-secondary p {
            font-size: 13px;
            color: var(--light-muted);
            margin: 0 0 8px;
        }
        .drawer-secondary .social-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            text-decoration: none;
            margin-right: 16px;
            transition: var(--transition);
        }
        .drawer-secondary .social-link:hover {
            color: var(--primary);
        }
        /* Breadcrumb */
        .breadcrumb-section {
            padding: 20px 0 0;
            background: #fff;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--light-muted);
        }
        .breadcrumb-nav a {
            color: var(--light-muted);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav .separator {
            color: var(--border);
            font-size: 12px;
        }
        .breadcrumb-nav .current {
            color: var(--dark-title);
            font-weight: 600;
        }
        /* Category Hero */
        .category-hero {
            background: #fff;
            padding: 36px 0 40px;
            border-bottom: 1px solid var(--border);
        }
        .category-hero-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .category-hero-left {
            flex: 1 1 60%;
            min-width: 280px;
        }
        .category-hero-left h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--h1-color);
            margin: 0 0 12px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }
        .category-hero-left p {
            font-size: 16px;
            color: var(--muted);
            margin: 0;
            line-height: 1.8;
            max-width: 560px;
        }
        .category-hero-right {
            flex: 1 1 30%;
            min-width: 240px;
            display: flex;
            align-items: center;
            justify-content: flex-end;
        }
        .category-hero-image {
            width: 100%;
            max-width: 340px;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }
        /* Schedule Card Section */
        .schedule-section {
            padding: var(--section-padding);
            background: var(--light-bg);
        }
        .section-heading {
            margin-bottom: 32px;
        }
        .section-heading h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--dark-title);
            margin: 0 0 8px;
            letter-spacing: 0.3px;
        }
        .section-heading p {
            font-size: 15px;
            color: var(--muted);
            margin: 0;
        }
        .schedule-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .schedule-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            cursor: pointer;
            position: relative;
        }
        .schedule-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .schedule-card-image {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .schedule-card-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .schedule-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .schedule-tag {
            background: var(--secondary-bg);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .schedule-status {
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.3px;
        }
        .schedule-status.live {
            background: #FFEBEE;
            color: var(--danger);
        }
        .schedule-status.upcoming {
            background: #E8F5E9;
            color: var(--success);
        }
        .schedule-status.pending {
            background: #ECEFF1;
            color: var(--muted);
        }
        .schedule-matchup {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark-title);
            margin-bottom: 8px;
            line-height: 1.35;
            letter-spacing: 0.2px;
        }
        .schedule-matchup .vs-text {
            font-size: 14px;
            font-weight: 400;
            color: var(--light-muted);
            margin: 0 4px;
        }
        .schedule-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--muted);
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }
        .schedule-meta i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }
        .schedule-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 32px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
            padding: 10px 20px;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            background: #fff;
        }
        .schedule-more:hover {
            background: var(--secondary-bg);
            color: var(--primary-hover);
            box-shadow: var(--shadow-card);
        }
        /* Data Snapshot */
        .data-snapshot-section {
            padding: var(--section-padding);
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .snapshot-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .snapshot-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .snapshot-number {
            font-family: var(--font-data);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
            letter-spacing: 0.5px;
        }
        .snapshot-label {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
        }
        /* Ranking Section */
        .ranking-section {
            padding: var(--section-padding);
            background: var(--light-bg);
        }
        .ranking-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .ranking-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            cursor: pointer;
        }
        .ranking-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }
        .ranking-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--secondary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }
        .ranking-item:nth-child(1) .ranking-number {
            background: #FFE9E3;
            color: #D9522A;
        }
        .ranking-item:nth-child(2) .ranking-number {
            background: #FFF3E0;
            color: #E67E22;
        }
        .ranking-item:nth-child(3) .ranking-number {
            background: #FFF9C4;
            color: #F9A825;
        }
        .ranking-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .ranking-info p {
            font-size: 13px;
            color: var(--muted);
            margin: 0;
        }
        .ranking-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            background: var(--secondary-bg);
            color: var(--primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        /* Scene Guide */
        .scene-section {
            padding: var(--section-padding);
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .scene-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: var(--secondary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }
        .scene-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark-title);
            margin: 0 0 10px;
        }
        .scene-card p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.8;
        }
        /* FAQ Section */
        .faq-section {
            padding: var(--section-padding);
            background: var(--light-bg);
        }
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark-title);
            text-align: left;
            transition: var(--transition);
            font-family: var(--font-sans);
            line-height: 1.6;
        }
        .faq-question:hover {
            color: var(--primary);
            background: rgba(27, 108, 168, 0.04);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--secondary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--muted);
            margin: 0;
            line-height: 1.8;
            padding-top: 4px;
        }
        /* Subscribe CTA */
        .subscribe-section {
            padding: var(--section-padding);
            background: #fff;
            border-top: 1px solid var(--border);
        }
        .subscribe-wrapper {
            background: var(--secondary-bg);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }
        .subscribe-wrapper h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--dark-title);
            margin: 0 0 8px;
        }
        .subscribe-wrapper p {
            font-size: 15px;
            color: var(--muted);
            margin: 0 0 24px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 240px;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            background: #fff;
            font-size: 15px;
            color: var(--body-text);
            transition: var(--transition);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(27, 108, 168, 0.15);
        }
        .subscribe-form .btn-primary {
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-form .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
        }
        /* Footer */
        .site-footer {
            background: #1B2A38;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 32px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .footer-info p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin: 0 0 8px;
            line-height: 1.7;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 16px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
            margin: 0 0 6px;
            line-height: 1.6;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .schedule-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-padding: 32px 0;
            }
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                height: 56px;
            }
            .logo-text {
                font-size: 18px;
            }
            .header-cta span {
                display: none;
            }
            .header-cta {
                padding: 8px 12px;
                font-size: 13px;
            }
            .category-hero {
                padding: 24px 0 28px;
            }
            .category-hero-inner {
                flex-direction: column;
                gap: 20px;
            }
            .category-hero-left h1 {
                font-size: 26px;
            }
            .category-hero-right {
                justify-content: flex-start;
            }
            .category-hero-image {
                max-width: 100%;
                height: 160px;
            }
            .schedule-grid {
                grid-template-columns: 1fr;
            }
            .snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .ranking-item {
                padding: 12px 16px;
                gap: 12px;
            }
            .ranking-number {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .subscribe-wrapper {
                padding: 28px 20px;
            }
            .subscribe-form {
                flex-direction: column;
                width: 100%;
            }
            .subscribe-form input[type="email"] {
                min-width: 100%;
                width: 100%;
            }
            .subscribe-form .btn-primary {
                width: 100%;
            }
            .footer-inner {
                flex-direction: column;
                gap: 20px;
            }
            .footer-links {
                gap: 14px;
            }
        }
        @media (max-width: 520px) {
            .snapshot-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .snapshot-number {
                font-size: 26px;
            }
            .ranking-info h4 {
                font-size: 14px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .schedule-card-image {
                height: 140px;
            }
            .schedule-matchup {
                font-size: 16px;
            }
        }

/* roulang page: category5 */
:root {
        --primary: #1B6CA8;
        --primary-hover: #155485;
        --secondary-bg: #E8F0F7;
        --dark-title: #2C3E50;
        --h1-color: #1B2A38;
        --body-text: #333333;
        --muted: #666666;
        --light-muted: #888888;
        --border: #E0E0E0;
        --light-bg: #F5F7FA;
        --card-bg: #FFFFFF;
        --success: #2E8B57;
        --danger: #C0392B;
        --radius-card: 8px;
        --radius-btn: 6px;
        --radius-tag: 4px;
        --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
        --shadow-card-hover: 0 4px 16px rgba(27, 108, 168, 0.12);
        --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
        --font-data: 'Inter', 'Roboto', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        --section-padding: 48px 0;
        --transition: all 0.25s ease;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-sans);
        color: var(--body-text);
        background: #FBFCFE;
        line-height: 1.7;
        font-size: 15px;
        margin: 0;
        padding: 0;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover,
    a:focus {
        color: var(--primary-hover);
        text-decoration: none;
        outline: none;
    }
    a:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button,
    input,
    select,
    textarea {
        font-family: var(--font-sans);
        font-size: 15px;
        line-height: 1.7;
    }
    button:focus-visible,
    input:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }
    .container-main {
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    /* Header / Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 64px;
    }
    .logo-area {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
    }
    .logo-icon {
        width: 36px;
        height: 36px;
        background: linear-gradient(135deg, #1B6CA8 0%, #2E8B57 100%);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 20px;
        flex-shrink: 0;
    }
    .logo-text {
        font-size: 20px;
        font-weight: 700;
        color: var(--h1-color);
        letter-spacing: 0.5px;
        white-space: nowrap;
    }
    .logo-text a {
        color: var(--h1-color);
        text-decoration: none;
    }
    .logo-text a:hover {
        color: var(--primary);
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .header-cta {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--primary);
        color: #fff;
        padding: 10px 20px;
        border-radius: var(--radius-btn);
        font-weight: 600;
        font-size: 14px;
        border: none;
        cursor: pointer;
        transition: var(--transition);
        white-space: nowrap;
    }
    .header-cta:hover {
        background: var(--primary-hover);
        color: #fff;
        box-shadow: 0 4px 12px rgba(27, 108, 168, 0.3);
    }
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 8px;
        border: 1px solid var(--border);
        background: #fff;
        color: var(--body-text);
        cursor: pointer;
        transition: var(--transition);
        font-size: 20px;
    }
    .menu-toggle:hover {
        background: var(--secondary-bg);
        border-color: var(--primary);
        color: var(--primary);
    }
    /* Drawer Navigation */
    .drawer-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.6);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }
    .drawer-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    .drawer-panel {
        position: fixed;
        top: 0;
        right: -420px;
        width: 380px;
        max-width: 85vw;
        height: 100%;
        background: #fff;
        z-index: 1000;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
        transition: right 0.35s cubic-bezier(0.22, 0.61, 0.36, 1);
        display: flex;
        flex-direction: column;
        padding: 28px 32px;
        overflow-y: auto;
    }
    .drawer-panel.open {
        right: 0;
    }
    .drawer-close {
        align-self: flex-end;
        width: 40px;
        height: 40px;
        border-radius: 6px;
        border: 1px solid var(--border);
        background: #fff;
        color: var(--body-text);
        font-size: 18px;
        cursor: pointer;
        transition: var(--transition);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 16px;
    }
    .drawer-close:hover {
        background: var(--light-bg);
        color: var(--primary);
        border-color: var(--primary);
    }
    .drawer-nav {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .drawer-nav li {
        margin-bottom: 4px;
    }
    .drawer-nav a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 16px;
        font-size: 20px;
        font-weight: 600;
        color: var(--dark-title);
        border-radius: 6px;
        transition: var(--transition);
        border-left: 3px solid transparent;
    }
    .drawer-nav a:hover {
        background: var(--secondary-bg);
        color: var(--primary);
        border-left-color: var(--primary);
    }
    .drawer-nav a.active {
        color: var(--primary);
        background: var(--secondary-bg);
        border-left-color: var(--primary);
    }
    .drawer-nav a .nav-indicator {
        font-size: 14px;
        color: var(--light-muted);
        font-weight: 400;
    }
    .drawer-nav a.active .nav-indicator {
        color: var(--primary);
    }
    .drawer-section-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--light-muted);
        letter-spacing: 1px;
        text-transform: uppercase;
        margin: 20px 0 8px 0;
        padding-left: 16px;
    }
    /* Breadcrumb */
    .breadcrumb-section {
        padding: 16px 0 0 0;
        background: transparent;
    }
    .breadcrumb-nav {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--muted);
        flex-wrap: wrap;
    }
    .breadcrumb-nav a {
        color: var(--primary);
        font-weight: 500;
    }
    .breadcrumb-nav a:hover {
        color: var(--primary-hover);
        text-decoration: underline;
    }
    .breadcrumb-separator {
        color: var(--light-muted);
        font-size: 12px;
    }
    .breadcrumb-current {
        color: var(--dark-title);
        font-weight: 600;
    }
    /* Category Hero (small banner) */
    .category-hero {
        background: #FFFFFF;
        border-bottom: 1px solid var(--border);
        padding: 28px 0 32px 0;
    }
    .category-hero-inner {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
    }
    .category-hero-left {
        flex: 1 1 auto;
        max-width: 60%;
    }
    .category-hero-left h1 {
        font-size: 28px;
        font-weight: 700;
        color: var(--h1-color);
        margin: 0 0 8px 0;
        line-height: 1.3;
    }
    .category-hero-left .category-badge {
        display: inline-block;
        background: var(--secondary-bg);
        color: var(--primary);
        font-size: 13px;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: var(--radius-tag);
        margin-bottom: 12px;
        letter-spacing: 0.5px;
    }
    .category-hero-right {
        flex: 1 1 auto;
        max-width: 40%;
        color: var(--muted);
        font-size: 15px;
        line-height: 1.8;
        padding-left: 8px;
    }
    .category-hero-right p {
        margin: 0;
    }
    /* Section base */
    .section-block {
        padding: var(--section-padding);
    }
    .section-block.bg-light {
        background: var(--light-bg);
    }
    .section-block.bg-white {
        background: #FFFFFF;
    }
    .section-block.bg-secondary {
        background: var(--secondary-bg);
    }
    .section-heading {
        margin-bottom: 28px;
    }
    .section-heading h2 {
        font-size: 24px;
        font-weight: 700;
        color: var(--dark-title);
        margin: 0 0 8px 0;
        line-height: 1.4;
    }
    .section-heading p {
        font-size: 15px;
        color: var(--muted);
        margin: 0;
        line-height: 1.7;
    }
    .section-heading .heading-line {
        width: 48px;
        height: 4px;
        background: var(--primary);
        border-radius: 2px;
        margin-bottom: 14px;
    }
    /* Article Card Grid */
    .article-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .article-card {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        border: 1px solid #E8E8E8;
        box-shadow: var(--shadow-card);
        overflow: hidden;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    .article-card:hover {
        box-shadow: var(--shadow-card-hover);
        border-color: var(--primary);
        transform: translateY(-2px);
    }
    .article-card-image {
        width: 100%;
        height: 160px;
        overflow: hidden;
        position: relative;
        background: var(--secondary-bg);
    }
    .article-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .article-card:hover .article-card-image img {
        transform: scale(1.05);
    }
    .article-card-body {
        padding: 16px 18px 18px 18px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .article-card-tag {
        display: inline-block;
        background: var(--secondary-bg);
        color: var(--primary);
        font-size: 12px;
        font-weight: 600;
        padding: 3px 10px;
        border-radius: var(--radius-tag);
        margin-bottom: 10px;
        letter-spacing: 0.3px;
    }
    .article-card-title {
        font-size: 17px;
        font-weight: 600;
        color: var(--dark-title);
        margin: 0 0 8px 0;
        line-height: 1.5;
        transition: var(--transition);
    }
    .article-card-title a {
        color: var(--dark-title);
        text-decoration: none;
    }
    .article-card-title a:hover {
        color: var(--primary);
    }
    .article-card-summary {
        font-size: 14px;
        color: var(--muted);
        line-height: 1.7;
        margin: 0 0 12px 0;
        flex: 1;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .article-card-meta {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 13px;
        color: var(--light-muted);
        border-top: 1px solid #F0F0F0;
        padding-top: 10px;
    }
    .article-card-meta i {
        font-size: 12px;
    }
    /* View More Link */
    .view-more-wrap {
        text-align: center;
        margin-top: 28px;
    }
    .view-more-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--primary);
        font-weight: 600;
        font-size: 15px;
        padding: 10px 24px;
        border: 1px solid var(--primary);
        border-radius: var(--radius-btn);
        background: #fff;
        transition: var(--transition);
    }
    .view-more-link:hover {
        background: var(--secondary-bg);
        color: var(--primary-hover);
        border-color: var(--primary-hover);
    }
    /* Hot Ranking */
    .ranking-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
        counter-reset: rank;
    }
    .ranking-item {
        display: flex;
        align-items: center;
        gap: 14px;
        background: var(--card-bg);
        border-radius: var(--radius-card);
        border: 1px solid #E8E8E8;
        padding: 14px 18px;
        transition: var(--transition);
        counter-increment: rank;
    }
    .ranking-item:hover {
        border-color: var(--primary);
        box-shadow: var(--shadow-card-hover);
    }
    .ranking-number {
        font-family: var(--font-data);
        font-size: 22px;
        font-weight: 700;
        color: var(--primary);
        min-width: 36px;
        text-align: center;
        flex-shrink: 0;
    }
    .ranking-content {
        flex: 1;
        min-width: 0;
    }
    .ranking-title {
        font-size: 15px;
        font-weight: 600;
        color: var(--dark-title);
        margin: 0 0 4px 0;
        line-height: 1.4;
    }
    .ranking-meta {
        font-size: 13px;
        color: var(--light-muted);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .ranking-tag {
        background: #F0F5F9;
        color: var(--muted);
        font-size: 12px;
        padding: 2px 8px;
        border-radius: 3px;
        font-weight: 500;
    }
    /* Data Overview */
    .data-overview-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
    .data-stat-card {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        border: 1px solid #E8E8E8;
        box-shadow: var(--shadow-card);
        padding: 20px 18px;
        text-align: center;
        transition: var(--transition);
    }
    .data-stat-card:hover {
        border-color: var(--primary);
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-2px);
    }
    .data-stat-value {
        font-family: var(--font-data);
        font-size: 32px;
        font-weight: 700;
        color: var(--primary);
        line-height: 1.2;
        margin-bottom: 6px;
    }
    .data-stat-label {
        font-size: 14px;
        color: var(--muted);
        font-weight: 500;
        margin-bottom: 4px;
    }
    .data-stat-note {
        font-size: 12px;
        color: var(--light-muted);
    }
    /* Tag Cloud */
    .tag-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    .tag-item {
        display: inline-block;
        background: #FFFFFF;
        border: 1px solid var(--border);
        color: var(--muted);
        font-size: 13px;
        padding: 8px 16px;
        border-radius: 20px;
        transition: var(--transition);
        font-weight: 500;
        text-decoration: none;
    }
    .tag-item:hover {
        background: var(--secondary-bg);
        border-color: var(--primary);
        color: var(--primary);
        transform: translateY(-1px);
    }
    /* Extended Reading */
    .reading-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .reading-card {
        display: flex;
        gap: 14px;
        background: var(--card-bg);
        border-radius: var(--radius-card);
        border: 1px solid #E8E8E8;
        padding: 16px;
        transition: var(--transition);
    }
    .reading-card:hover {
        border-color: var(--primary);
        box-shadow: var(--shadow-card-hover);
    }
    .reading-card-img {
        width: 72px;
        height: 72px;
        flex-shrink: 0;
        border-radius: 6px;
        overflow: hidden;
        background: var(--secondary-bg);
    }
    .reading-card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .reading-card-content {
        flex: 1;
        min-width: 0;
    }
    .reading-card-title {
        font-size: 15px;
        font-weight: 600;
        color: var(--dark-title);
        margin: 0 0 6px 0;
        line-height: 1.4;
    }
    .reading-card-title a {
        color: var(--dark-title);
        text-decoration: none;
    }
    .reading-card-title a:hover {
        color: var(--primary);
    }
    .reading-card-meta {
        font-size: 13px;
        color: var(--light-muted);
    }
    /* FAQ */
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
        max-width: 860px;
    }
    .faq-item {
        background: var(--card-bg);
        border-radius: var(--radius-card);
        border: 1px solid #E8E8E8;
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item.active {
        border-color: var(--primary);
        box-shadow: var(--shadow-card-hover);
    }
    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 20px;
        background: transparent;
        border: none;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--dark-title);
        text-align: left;
        gap: 12px;
        transition: var(--transition);
    }
    .faq-question:hover {
        color: var(--primary);
        background: #F9FBFD;
    }
    .faq-question .faq-toggle-icon {
        flex-shrink: 0;
        color: var(--light-muted);
        font-size: 16px;
        transition: transform 0.3s ease;
    }
    .faq-item.active .faq-question .faq-toggle-icon {
        transform: rotate(180deg);
        color: var(--primary);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease, padding 0.35s ease;
        padding: 0 20px;
        color: var(--muted);
        font-size: 15px;
        line-height: 1.8;
    }
    .faq-item.active .faq-answer {
        max-height: 300px;
        padding: 0 20px 18px 20px;
    }
    /* Footer */
    .site-footer {
        background: #1B2A38;
        color: rgba(255, 255, 255, 0.75);
        padding: 40px 0 28px 0;
        margin-top: 0;
    }
    .footer-inner {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 24px;
        margin-bottom: 24px;
    }
    .footer-brand {
        font-size: 22px;
        font-weight: 700;
        color: #fff;
        letter-spacing: 0.5px;
        flex-shrink: 0;
    }
    .footer-info {
        flex: 1;
        max-width: 300px;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.6);
        line-height: 1.7;
    }
    .footer-links {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        flex-shrink: 0;
    }
    .footer-links a {
        color: rgba(255, 255, 255, 0.75);
        font-size: 14px;
        text-decoration: none;
        transition: var(--transition);
    }
    .footer-links a:hover {
        color: #fff;
        text-decoration: underline;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.15);
        padding-top: 18px;
    }
    .footer-bottom p {
        margin: 0 0 8px 0;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.55);
    }
    .footer-bottom a {
        color: rgba(255, 255, 255, 0.6);
        text-decoration: none;
        transition: var(--transition);
    }
    .footer-bottom a:hover {
        color: #fff;
    }
    /* Responsive */
    @media (max-width: 991px) {
        .article-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .data-overview-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .reading-list {
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .category-hero-left {
            max-width: 100%;
        }
        .category-hero-right {
            max-width: 100%;
            padding-left: 0;
        }
        .category-hero-inner {
            flex-direction: column;
            gap: 12px;
        }
    }
    @media (max-width: 767px) {
        .article-grid {
            grid-template-columns: 1fr;
            gap: 14px;
        }
        .data-overview-grid {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .reading-list {
            grid-template-columns: 1fr;
            gap: 10px;
        }
        .container-main {
            padding-left: 16px;
            padding-right: 16px;
        }
        .section-block {
            padding: 32px 0;
        }
        .category-hero {
            padding: 20px 0 24px 0;
        }
        .category-hero-left h1 {
            font-size: 22px;
        }
        .header-cta span {
            display: none;
        }
        .header-cta {
            padding: 10px 14px;
            font-size: 13px;
        }
        .drawer-panel {
            width: 100%;
            max-width: 100%;
            right: -100%;
            padding: 20px 24px;
        }
        .drawer-panel.open {
            right: 0;
        }
        .drawer-nav a {
            font-size: 18px;
            padding: 12px 14px;
        }
        .article-card-image {
            height: 140px;
        }
    }
    @media (max-width: 575px) {
        .data-overview-grid {
            grid-template-columns: 1fr;
            gap: 10px;
        }
        .ranking-item {
            padding: 12px 14px;
            gap: 10px;
        }
        .ranking-number {
            font-size: 18px;
            min-width: 28px;
        }
        .article-card-title {
            font-size: 15px;
        }
        .section-heading h2 {
            font-size: 20px;
        }
        .footer-inner {
            flex-direction: column;
            gap: 16px;
        }
        .footer-links {
            gap: 12px;
        }
        .breadcrumb-nav {
            font-size: 13px;
        }
    }