/* roulang page: index */
:root {
            --bg-primary: #0c0e0f;
            --bg-secondary: #121519;
            --bg-card: #171b1f;
            --bg-card-hover: #1d2328;
            --bg-soft: #1a1f24;
            --text-primary: #f2f4f6;
            --text-secondary: #a8b3bd;
            --text-muted: #6b7783;
            --accent-green: #00e676;
            --accent-green-dark: #00c853;
            --accent-orange: #ff6d00;
            --accent-orange-light: #ff9100;
            --border-color: #2a3138;
            --border-light: #3a434b;
            --shadow-hard: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-glow-green: 0 0 20px rgba(0, 230, 118, 0.2);
            --shadow-glow-orange: 0 0 16px rgba(255, 109, 0, 0.18);
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            --container-max: 1200px;
            --header-height: 68px;
            --transition: 0.2s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent-green);
        }

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

        button {
            cursor: pointer;
        }

        :focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== Header / Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(12, 14, 15, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
            flex-wrap: nowrap;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            border-radius: var(--radius-sm);
            clip-path: polygon(8% 8%, 92% 8%, 92% 92%, 8% 92%);
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--accent-green);
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-shrink: 1;
            min-width: 0;
        }

        .nav-primary>li {
            list-style: none;
            position: relative;
            white-space: nowrap;
        }

        .nav-primary>li>a {
            display: block;
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }

        .nav-primary>li>a:hover,
        .nav-primary>li>a.active {
            color: var(--text-primary);
            background: var(--bg-soft);
        }

        .nav-primary>li>a.active {
            color: var(--accent-green);
        }

        .nav-primary>li.mega-trigger>a::after {
            content: '';
            display: inline-block;
            margin-left: 6px;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 4px solid var(--text-muted);
            vertical-align: middle;
            transition: transform var(--transition);
        }

        .nav-primary>li.mega-trigger:hover>a::after {
            transform: rotate(180deg);
            border-top-color: var(--accent-green);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            width: 380px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hard);
            padding: 18px;
            display: none;
            z-index: 1001;
        }

        .nav-primary>li.mega-trigger:hover .mega-panel,
        .nav-primary>li.mega-trigger:focus-within .mega-panel {
            display: block;
        }

        .mega-panel h3 {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .mega-panel .mega-links {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .mega-panel .mega-links a {
            display: inline-block;
            padding: 8px 12px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
        }

        .mega-panel .mega-links a:hover {
            background: var(--bg-card-hover);
            color: var(--accent-green);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            color: var(--text-primary);
            font-size: 18px;
            line-height: 1;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            padding: 80px 0 70px;
            background: linear-gradient(135deg, #0c0e0f 0%, #121a14 55%, #161210 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                linear-gradient(rgba(0, 230, 118, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 230, 118, 0.04) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }

        .hero-left h1 {
            font-size: 44px;
            font-weight: 900;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .hero-left h1 .highlight {
            color: var(--accent-green);
            display: block;
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 2px;
            margin-top: 4px;
        }

        .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 12px 22px;
            font-size: 14px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--accent-green);
            color: #0c0e0f;
            border-color: var(--accent-green);
        }

        .btn-primary:hover {
            background: var(--accent-green-dark);
            border-color: var(--accent-green-dark);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border-color: var(--border-light);
        }

        .btn-secondary:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: rgba(0, 230, 118, 0.06);
        }

        .hero-badges {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .hero-badge .dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.5);
            }
        }

        .hero-right {
            position: relative;
        }

        .hero-visual {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-hard);
            position: relative;
            overflow: hidden;
        }

        .hero-visual::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/80965e729e6ed174.webp') center/cover no-repeat;
            opacity: 0.35;
            border-radius: var(--radius-lg);
        }

        .hero-visual-content {
            position: relative;
            z-index: 1;
        }

        .hero-visual-content h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

        .hero-kpi-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-bottom: 16px;
        }

        .hero-kpi {
            background: rgba(12, 14, 15, 0.8);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 12px;
            text-align: center;
        }

        .hero-kpi .kpi-num {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 800;
            color: var(--accent-green);
            display: block;
        }

        .hero-kpi .kpi-label {
            font-size: 11px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .hero-visual-content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Section Base ========== */
        .section {
            padding: 60px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

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

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

        .section-header h2 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.3px;
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }

        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-green);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-tag.orange {
            color: var(--accent-orange);
        }

        /* ========== Metrics Board ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
        }

        .metric-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            box-shadow: var(--shadow-hard);
        }

        .metric-card .metric-icon {
            font-size: 24px;
            margin-bottom: 10px;
            display: block;
        }

        .metric-card .metric-num {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.1;
            display: block;
        }

        .metric-card .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .metric-card .metric-change {
            font-size: 12px;
            color: var(--accent-green);
            margin-top: 8px;
            display: inline-block;
            font-weight: 600;
        }

        .metric-card .metric-change.down {
            color: var(--accent-orange);
        }

        /* ========== Service Matrix ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .service-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--accent-green);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-green);
        }

        .service-card .service-icon {
            font-size: 28px;
            display: block;
        }

        .service-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== Compare Section ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .compare-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .compare-panel.highlight {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-glow-green);
        }

        .compare-panel h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .compare-panel ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .compare-panel li {
            font-size: 14px;
            color: var(--text-secondary);
            padding-left: 20px;
            position: relative;
            line-height: 1.7;
        }

        .compare-panel li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--text-muted);
        }

        .compare-panel.highlight li::before {
            background: var(--accent-green);
        }

        /* ========== Timeline / Milestone ========== */
        .timeline {
            position: relative;
            padding-left: 24px;
            border-left: 2px solid var(--border-color);
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .timeline-item {
            position: relative;
            padding-left: 16px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -29px;
            top: 6px;
            width: 12px;
            height: 12px;
            background: var(--accent-green);
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            box-shadow: 0 0 0 2px var(--accent-green);
        }

        .timeline-item .time {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent-green);
            font-weight: 700;
            margin-bottom: 4px;
            display: block;
        }

        .timeline-item h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .timeline-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== News List ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            transition: background var(--transition), border-color var(--transition);
        }

        .news-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
        }

        .news-item .news-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            margin-top: 2px;
        }

        .news-item .news-content h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .news-item .news-content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Security / Guarantee ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .guarantee-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            text-align: center;
            transition: background var(--transition), border-color var(--transition);
        }

        .guarantee-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--accent-green);
        }

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

        .guarantee-card h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .guarantee-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== Quick Answers ========== */
        .quick-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .quick-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px;
        }

        .quick-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--accent-green);
            margin-bottom: 6px;
        }

        .quick-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: border-color var(--transition);
        }

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

        .faq-item summary {
            padding: 16px 18px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-primary);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-arrow {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary .faq-arrow {
            transform: rotate(45deg);
            color: var(--accent-green);
        }

        .faq-item .faq-answer {
            padding: 0 18px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== Form Section ========== */
        .form-section {
            background: linear-gradient(135deg, var(--bg-secondary), #0d1a12);
            padding: 50px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .form-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px;
            max-width: 680px;
            margin: 0 auto;
            box-shadow: var(--shadow-hard);
        }

        .form-wrapper h2 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .form-wrapper p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

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

        .form-group input {
            flex: 1;
            min-width: 200px;
            padding: 13px 16px;
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .form-group input:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.15);
        }

        .form-group input::placeholder {
            color: var(--text-muted);
        }

        .form-note {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* ========== Brand Intro ========== */
        .brand-intro {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px;
            margin-bottom: 0;
        }

        .brand-intro h2 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .brand-intro p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2;
            margin-bottom: 12px;
        }

        /* ========== Hot Matches ========== */
        .matches-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .match-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }

        .match-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-2px);
        }

        .match-card .match-img {
            height: 160px;
            overflow: hidden;
        }

        .match-card .match-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

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

        .match-card .match-body h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .match-card .match-body p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .match-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            color: #0c0e0f;
            background: var(--accent-green);
            padding: 2px 8px;
            border-radius: 3px;
            margin-bottom: 8px;
        }

        .match-tag.orange {
            background: var(--accent-orange);
            color: #fff;
        }

        /* ========== Feature Zone ========== */
        .feature-zone {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        .feature-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            transition: background var(--transition), border-color var(--transition);
        }

        .feature-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--accent-orange);
        }

        .feature-item .f-icon {
            font-size: 30px;
            margin-bottom: 8px;
            display: block;
        }

        .feature-item h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .feature-item p {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== Testimonials ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
        }

        .testimonial-card .stars {
            color: var(--accent-orange);
            font-size: 14px;
            margin-bottom: 8px;
            letter-spacing: 2px;
        }

        .testimonial-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .testimonial-card .author {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-primary);
        }

        /* ========== Insight / Trend ========== */
        .insight-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
        }

        .insight-chart {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            min-height: 260px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            position: relative;
        }

        .insight-bars {
            display: flex;
            gap: 8px;
            align-items: flex-end;
            height: 150px;
            flex: 1;
        }

        .insight-bar {
            flex: 1;
            background: linear-gradient(to top, var(--accent-green-dark), var(--accent-green));
            border-radius: 3px 3px 0 0;
            min-height: 10px;
            position: relative;
            transition: opacity 0.2s;
        }

        .insight-bar:nth-child(even) {
            background: linear-gradient(to top, #1a3030, #2a6e50);
        }

        .insight-bar span {
            position: absolute;
            top: -22px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 11px;
            font-family: var(--font-mono);
            color: var(--text-muted);
        }

        .insight-text h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .insight-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ========== Download / App ========== */
        .download-section {
            background: linear-gradient(135deg, #0d1a12, var(--bg-primary));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .download-info h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .download-info p {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .download-buttons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

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

        .btn-download:hover {
            background: var(--accent-orange-light);
            border-color: var(--accent-orange-light);
            box-shadow: var(--shadow-glow-orange);
            transform: translateY(-1px);
        }

        /* ========== Partners ========== */
        .partners-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .partner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            transition: background var(--transition), border-color var(--transition);
        }

        .partner-badge:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            color: var(--text-primary);
        }

        /* ========== Announcements ========== */
        .announcement-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .announcement-item {
            display: flex;
            gap: 12px;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            transition: background var(--transition), border-color var(--transition);
        }

        .announcement-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
        }

        .announcement-item .ann-tag {
            font-size: 11px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 3px;
            background: rgba(0, 230, 118, 0.1);
            color: var(--accent-green);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .announcement-item .ann-tag.orange {
            background: rgba(255, 109, 0, 0.1);
            color: var(--accent-orange);
        }

        .announcement-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .announcement-item .ann-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            margin-left: auto;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 30px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--accent-green);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--accent-green);
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
            }

            .hero-right {
                max-width: 500px;
            }

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

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

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

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

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

            .insight-section {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }

            .site-header .container {
                flex-wrap: wrap;
                height: auto;
                padding-top: 8px;
                padding-bottom: 8px;
            }

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

            .nav-primary {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-primary);
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                align-items: stretch;
                padding: 10px 16px;
                gap: 4px;
                z-index: 999;
                box-shadow: var(--shadow-hard);
            }

            .nav-primary.open {
                display: flex;
            }

            .nav-primary>li>a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }

            .nav-primary>li.mega-trigger:hover .mega-panel,
            .nav-primary>li.mega-trigger:focus-within .mega-panel {
                display: none;
            }

            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                padding: 8px 0;
                display: none;
            }

            .nav-primary>li.mega-trigger.open .mega-panel {
                display: block;
            }

            .nav-toggle {
                display: block;
                font-size: 20px;
            }

            .hero {
                padding: 50px 0;
            }

            .hero-left h1 {
                font-size: 32px;
            }

            .hero-left h1 .highlight {
                font-size: 18px;
            }

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

            .hero-actions {
                flex-direction: column;
                gap: 8px;
            }

            .hero-badges {
                gap: 12px;
                flex-wrap: wrap;
            }

            .section {
                padding: 40px 0;
            }

            .section-header h2 {
                font-size: 23px;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .metric-card {
                padding: 16px 14px;
            }

            .metric-card .metric-num {
                font-size: 26px;
            }

            .service-matrix {
                grid-template-columns: 1fr;
            }

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

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

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

            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .feature-zone {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

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

            .form-wrapper {
                padding: 24px 18px;
            }

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

            .form-group input {
                min-width: 0;
                width: 100%;
            }

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

            .download-buttons {
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .footer-legal {
                justify-content: center;
            }

            .announcement-item {
                flex-direction: column;
                gap: 6px;
                align-items: flex-start;
            }

            .announcement-item .ann-date {
                margin-left: 0;
            }

            .brand-intro {
                padding: 24px 18px;
            }
        }

        @media (max-width: 480px) {
            .hero-left h1 {
                font-size: 26px;
            }

            .hero-left h1 .highlight {
                font-size: 15px;
                letter-spacing: 1px;
            }

            .hero-sub {
                font-size: 13px;
            }

            .btn {
                padding: 10px 16px;
                font-size: 13px;
            }

            .hero-kpi-row {
                grid-template-columns: 1fr;
            }

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

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

            .feature-zone {
                grid-template-columns: 1fr;
            }

            .service-card {
                padding: 18px 16px;
            }

            .compare-panel {
                padding: 18px 16px;
            }

            .timeline {
                padding-left: 16px;
            }

            .timeline-item {
                padding-left: 10px;
            }

            .timeline-item::before {
                left: -21px;
                width: 10px;
                height: 10px;
            }

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

            .brand-logo {
                font-size: 16px;
            }

            .brand-logo .logo-mark {
                width: 22px;
                height: 22px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0c0e0f;
            --bg-secondary: #121519;
            --bg-card: #171b1f;
            --bg-card-hover: #1d2328;
            --bg-soft: #1a1f24;
            --text-primary: #f2f4f6;
            --text-secondary: #a8b3bd;
            --text-muted: #6b7783;
            --accent-green: #00e676;
            --accent-green-dark: #00c853;
            --accent-orange: #ff6d00;
            --accent-orange-light: #ff9100;
            --border-color: #2a3138;
            --border-light: #3a434b;
            --shadow-hard: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-glow-green: 0 0 20px rgba(0, 230, 118, 0.2);
            --shadow-glow-orange: 0 0 16px rgba(255, 109, 0, 0.18);
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            --container-max: 1200px;
            --header-height: 68px;
            --transition: 0.2s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent-green);
        }

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(12, 14, 15, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
            flex-wrap: nowrap;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            border-radius: var(--radius-sm);
            clip-path: polygon(8% 8%, 92% 8%, 92% 92%, 8% 92%);
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--accent-green);
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-shrink: 1;
            min-width: 0;
        }

        .nav-primary>li {
            list-style: none;
            position: relative;
            white-space: nowrap;
        }

        .nav-primary>li>a {
            display: block;
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }

        .nav-primary>li>a:hover,
        .nav-primary>li>a.active {
            color: var(--text-primary);
            background: var(--bg-soft);
        }

        .nav-primary>li>a.active {
            color: var(--accent-green);
        }

        .nav-primary>li.mega-trigger>a::after {
            content: '';
            display: inline-block;
            margin-left: 6px;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 4px solid var(--text-muted);
            vertical-align: middle;
            transition: transform var(--transition);
        }

        .nav-primary>li.mega-trigger:hover>a::after {
            transform: rotate(180deg);
            border-top-color: var(--accent-green);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            width: 380px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hard);
            padding: 18px;
            display: none;
            z-index: 1001;
        }

        .nav-primary>li.mega-trigger:hover .mega-panel,
        .nav-primary>li.mega-trigger:focus-within .mega-panel {
            display: block;
        }

        .mega-panel h3 {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .mega-panel .mega-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 8px;
        }

        .mega-panel .mega-links a {
            padding: 10px 12px;
            background: var(--bg-soft);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            border: 1px solid transparent;
        }

        .mega-panel .mega-links a:hover {
            color: var(--accent-green);
            background: var(--bg-card-hover);
            border-color: var(--border-light);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-size: 20px;
            transition: background var(--transition), color var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-soft);
            color: var(--accent-green);
        }

        .page-header {
            padding: 36px 0 24px;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

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

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

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

        .page-header h1 {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: 0.2px;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .page-header .lead {
            max-width: 820px;
            color: var(--text-secondary);
            font-size: 16px;
        }

        .main {
            padding: 32px 0 56px;
        }

        .guide-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .filter-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-tag {
            padding: 7px 13px;
            font-size: 13px;
            font-weight: 600;
            border: 1px solid var(--border-color);
            background: var(--bg-secondary);
            color: var(--text-secondary);
            border-radius: 100px;
            transition: all var(--transition);
        }

        .filter-tag:hover,
        .filter-tag.active {
            border-color: var(--accent-green-dark);
            color: var(--accent-green);
            background: rgba(0, 230, 118, 0.08);
        }

        .result-count {
            color: var(--text-muted);
            font-size: 13px;
            white-space: nowrap;
        }

        .guide-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

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

        .guide-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-hard);
            background: var(--bg-card-hover);
        }

        .guide-card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0b0d0f;
        }

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

        .guide-card:hover .guide-card-image img {
            transform: scale(1.06);
        }

        .guide-card-image::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 50%;
            background: linear-gradient(0deg, rgba(23, 27, 31, 0.96), rgba(23, 27, 31, 0));
            pointer-events: none;
        }

        .guide-type-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(12, 14, 15, 0.85);
            border: 1px solid var(--border-light);
            color: var(--accent-green);
            font-size: 12px;
            font-weight: 700;
            padding: 5px 10px;
            border-radius: 100px;
            backdrop-filter: blur(6px);
        }

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

        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .guide-card-meta .difficulty {
            color: var(--accent-orange-light);
            font-weight: 700;
        }

        .guide-card h2 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .guide-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }

        .guide-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .guide-tag {
            color: var(--text-muted);
            font-size: 12px;
            border-left: 2px solid var(--accent-green-dark);
            padding-left: 8px;
        }

        .guide-link {
            color: var(--accent-green);
            font-weight: 700;
            font-size: 13px;
            white-space: nowrap;
        }

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

        .section-block {
            padding: 32px 0;
        }

        .section-heading {
            display: flex;
            align-items: end;
            justify-content: space-between;
            gap: 18px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .section-heading h2 {
            font-size: 25px;
            font-weight: 800;
            letter-spacing: 0.2px;
            color: var(--text-primary);
        }

        .section-heading .section-subtitle {
            color: var(--text-muted);
            font-size: 14px;
            max-width: 520px;
        }

        .hot-play-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .hot-play-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px;
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }

        .hot-play-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-3px);
        }

        .hot-play-card .play-index {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-green);
            margin-bottom: 12px;
            display: block;
        }

        .hot-play-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .hot-play-card p {
            color: var(--text-secondary);
            font-size: 14px;
        }

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

        .data-brief-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px;
            text-align: left;
        }

        .data-brief-item .data-value {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-green);
            display: block;
            margin-bottom: 8px;
        }

        .data-brief-item .data-label {
            color: var(--text-secondary);
            font-size: 13px;
        }

        .update-list {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 22px;
        }

        .update-list-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .update-list-item:last-child {
            border-bottom: 0;
            padding-bottom: 0;
        }

        .update-list-item:first-child {
            padding-top: 0;
        }

        .update-list-item .update-info {
            flex: 1;
        }

        .update-list-item .update-info h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 5px;
        }

        .update-list-item .update-info p {
            color: var(--text-muted);
            font-size: 13px;
        }

        .update-status {
            color: var(--accent-green);
            font-size: 12px;
            font-weight: 700;
            background: rgba(0, 230, 118, 0.08);
            border: 1px solid rgba(0, 230, 118, 0.24);
            padding: 4px 10px;
            border-radius: 100px;
            white-space: nowrap;
        }

        .faq-block {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 22px;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
        }

        .faq-item:first-child {
            padding-top: 0;
        }

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

        .faq-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .faq-item p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
        }

        .subscribe-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .subscribe-card .subscribe-copy h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 6px;
        }

        .subscribe-card .subscribe-copy p {
            color: var(--text-secondary);
            font-size: 14px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            min-width: 280px;
            flex-shrink: 0;
        }

        .subscribe-form input {
            flex: 1;
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 11px 13px;
            color: var(--text-primary);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .subscribe-form input:focus {
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.15);
        }

        .btn-primary {
            background: var(--accent-green);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-sm);
            padding: 11px 18px;
            font-weight: 800;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        .btn-primary:hover {
            background: var(--accent-green-dark);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            padding: 9px 16px;
            font-weight: 700;
            transition: border-color var(--transition), color var(--transition), background var(--transition);
        }

        .btn-outline:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: rgba(0, 230, 118, 0.06);
        }

        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 28px;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-muted);
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            display: grid;
            gap: 9px;
        }

        .footer-col ul a {
            color: var(--text-secondary);
            font-size: 14px;
        }

        .footer-col ul a:hover {
            color: var(--accent-green);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 12px;
        }

        .footer-legal {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .footer-legal a {
            color: var(--text-muted);
        }

        .footer-legal a:hover {
            color: var(--accent-green);
        }

        @media (max-width: 1024px) {
            .hot-play-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-primary {
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(12, 14, 15, 0.98);
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                display: none;
                padding: 10px 16px 16px;
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }

            .nav-primary.open {
                display: flex;
            }

            .nav-primary>li>a {
                padding: 13px 10px;
                font-size: 15px;
                border-bottom: 1px solid var(--border-color);
            }

            .mega-panel {
                position: static;
                width: 100%;
                margin-top: 8px;
                background: var(--bg-soft);
            }

            .mega-panel .mega-links {
                grid-template-columns: 1fr 1fr;
            }

            .page-header h1 {
                font-size: 28px;
            }

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

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

            .data-brief-grid {
                grid-template-columns: 1fr 1fr;
            }

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

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

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

        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }

            .data-brief-grid {
                grid-template-columns: 1fr;
            }

            .guide-toolbar {
                align-items: flex-start;
                flex-direction: column;
            }

            .filter-tags {
                gap: 8px;
            }

            .filter-tag {
                padding: 6px 11px;
                font-size: 12px;
            }

            .subscribe-card {
                padding: 18px;
            }

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

            .btn-primary {
                width: 100%;
            }

            .page-header h1 {
                font-size: 25px;
            }
        }

/* roulang page: category1 */
:root {
        --bg-primary: #0c0e0f;
        --bg-secondary: #121519;
        --bg-card: #171b1f;
        --bg-card-hover: #1d2328;
        --bg-soft: #1a1f24;
        --text-primary: #f2f4f6;
        --text-secondary: #a8b3bd;
        --text-muted: #6b7783;
        --accent-green: #00e676;
        --accent-green-dark: #00c853;
        --accent-orange: #ff6d00;
        --accent-orange-light: #ff9100;
        --border-color: #2a3138;
        --border-light: #3a434b;
        --shadow-hard: 0 8px 32px rgba(0, 0, 0, 0.55);
        --shadow-glow-green: 0 0 20px rgba(0, 230, 118, 0.2);
        --shadow-glow-orange: 0 0 16px rgba(255, 109, 0, 0.18);
        --radius-sm: 4px;
        --radius-md: 6px;
        --radius-lg: 8px;
        --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
        --container-max: 1200px;
        --header-height: 60px;
        --transition: 0.2s ease;
    }

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

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

    body {
        font-family: var(--font-sans);
        background: var(--bg-primary);
        color: var(--text-primary);
        line-height: 1.65;
        font-size: 15px;
        min-height: 100vh;
        overflow-x: hidden;
    }

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

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

    a:hover {
        color: var(--accent-green);
    }

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

    button {
        cursor: pointer;
    }

    ul,
    ol {
        list-style: none;
    }

    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 20px;
    }

    /* ========== Header / Navigation ========== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        background: rgba(12, 14, 15, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-color);
        height: var(--header-height);
        display: flex;
        align-items: center;
    }

    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        gap: 20px;
        flex-wrap: nowrap;
    }

    .brand-logo {
        display: flex;
        align-items: center;
        gap: 8px;
        font-weight: 800;
        font-size: 20px;
        letter-spacing: 0.5px;
        color: var(--text-primary);
        white-space: nowrap;
        flex-shrink: 0;
    }

    .brand-logo .logo-mark {
        display: inline-block;
        width: 28px;
        height: 28px;
        background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
        border-radius: var(--radius-sm);
        clip-path: polygon(8% 8%, 92% 8%, 92% 92%, 8% 92%);
        flex-shrink: 0;
    }

    .brand-logo:hover {
        color: var(--accent-green);
    }

    .nav-primary {
        display: flex;
        align-items: center;
        gap: 2px;
        flex-shrink: 1;
        min-width: 0;
    }

    .nav-primary>li {
        list-style: none;
        position: relative;
        white-space: nowrap;
    }

    .nav-primary>li>a {
        display: block;
        padding: 14px 14px;
        font-size: 14px;
        font-weight: 600;
        letter-spacing: 0.3px;
        color: var(--text-secondary);
        border-radius: var(--radius-sm);
        transition: background var(--transition), color var(--transition);
    }

    .nav-primary>li>a:hover,
    .nav-primary>li>a.active {
        color: var(--text-primary);
        background: var(--bg-soft);
    }

    .nav-primary>li>a.active {
        color: var(--accent-green);
    }

    .nav-primary>li.mega-trigger>a::after {
        content: '';
        display: inline-block;
        margin-left: 6px;
        border-left: 4px solid transparent;
        border-right: 4px solid transparent;
        border-top: 4px solid var(--text-muted);
        vertical-align: middle;
        transition: transform var(--transition);
    }

    .nav-primary>li.mega-trigger:hover>a::after,
    .nav-primary>li.mega-trigger:focus-within>a::after {
        transform: rotate(180deg);
        border-top-color: var(--accent-green);
    }

    .mega-panel {
        position: absolute;
        top: 100%;
        right: 0;
        width: 380px;
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-hard);
        padding: 18px;
        display: none;
        z-index: 1001;
    }

    .nav-primary>li.mega-trigger:hover .mega-panel,
    .nav-primary>li.mega-trigger:focus-within .mega-panel {
        display: block;
    }

    .mega-panel h3 {
        font-size: 13px;
        color: var(--text-muted);
        font-weight: 600;
        margin-bottom: 10px;
        letter-spacing: 1px;
        text-transform: uppercase;
    }

    .mega-panel .mega-links {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .mega-panel .mega-links a {
        padding: 10px 12px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-secondary);
        border-radius: var(--radius-sm);
        background: var(--bg-card);
        transition: background var(--transition), color var(--transition);
    }

    .mega-panel .mega-links a:hover {
        background: var(--bg-card-hover);
        color: var(--accent-green);
    }

    .nav-toggle {
        display: none;
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        color: var(--text-secondary);
        font-size: 20px;
        line-height: 1;
        padding: 8px 12px;
        border-radius: var(--radius-sm);
        transition: background var(--transition), color var(--transition);
        flex-shrink: 0;
    }

    .nav-toggle:hover {
        background: var(--bg-card-hover);
        color: var(--accent-green);
    }

    /* ========== Breadcrumb & Page Header ========== */
    .page-header-section {
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        padding: 28px 0 32px;
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 16px;
        flex-wrap: wrap;
    }

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

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

    .breadcrumb .separator {
        color: var(--border-light);
        user-select: none;
    }

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

    .page-header-inner h1 {
        font-size: 36px;
        font-weight: 800;
        letter-spacing: 1px;
        margin-bottom: 12px;
        color: var(--text-primary);
        line-height: 1.2;
    }

    .page-header-inner .page-subtitle {
        font-size: 16px;
        color: var(--text-secondary);
        max-width: 720px;
        line-height: 1.7;
    }

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

    .section-alt {
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
    }

    .section-title {
        font-size: 24px;
        font-weight: 700;
        letter-spacing: 0.5px;
        margin-bottom: 8px;
        color: var(--text-primary);
    }

    .section-subtitle {
        font-size: 14px;
        color: var(--text-muted);
        margin-bottom: 28px;
    }

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

    .section-head .link-more {
        font-size: 14px;
        font-weight: 600;
        color: var(--accent-green);
        white-space: nowrap;
        transition: color var(--transition);
    }

    .section-head .link-more:hover {
        color: var(--accent-green-dark);
    }

    /* ========== Data Brief Cards ========== */
    .data-brief-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
        margin-bottom: 12px;
    }

    .data-brief-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 20px 18px;
        transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
    }

    .data-brief-card:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-light);
        box-shadow: var(--shadow-hard);
    }

    .data-brief-card .stat-number {
        font-family: var(--font-mono);
        font-size: 36px;
        font-weight: 800;
        letter-spacing: -0.5px;
        color: var(--accent-green);
        line-height: 1.1;
        margin-bottom: 6px;
    }

    .data-brief-card .stat-label {
        font-size: 13px;
        color: var(--text-muted);
        letter-spacing: 0.5px;
    }

    .data-brief-card.orange .stat-number {
        color: var(--accent-orange-light);
    }

    .data-brief-card.light .stat-number {
        color: var(--text-primary);
    }

    /* ========== Filter Tags ========== */
    .filter-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 6px;
    }

    .filter-tag {
        display: inline-block;
        padding: 8px 18px;
        font-size: 13px;
        font-weight: 600;
        border-radius: 20px;
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        color: var(--text-secondary);
        transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
    }

    .filter-tag:hover {
        background: var(--bg-card-hover);
        border-color: var(--accent-green);
        color: var(--accent-green);
        box-shadow: var(--shadow-glow-green);
    }

    .filter-tag.active {
        background: rgba(0, 230, 118, 0.12);
        border-color: var(--accent-green);
        color: var(--accent-green);
    }

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

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

    .match-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hard);
        border-color: var(--border-light);
    }

    .match-card-img {
        aspect-ratio: 16/9;
        background: var(--bg-soft);
        position: relative;
        overflow: hidden;
        flex-shrink: 0;
    }

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

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

    .match-card-img .status-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        padding: 4px 12px;
        font-size: 12px;
        font-weight: 700;
        border-radius: 20px;
        letter-spacing: 0.5px;
    }

    .status-badge.live {
        background: #ff3d00;
        color: #fff;
        animation: pulse-dot 1.6s ease-in-out infinite;
    }

    .status-badge.upcoming {
        background: rgba(0, 230, 118, 0.15);
        color: var(--accent-green);
        border: 1px solid rgba(0, 230, 118, 0.4);
    }

    .status-badge.finished {
        background: rgba(107, 119, 131, 0.25);
        color: var(--text-secondary);
        border: 1px solid var(--border-light);
    }

    @keyframes pulse-dot {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.6; }
    }

    .match-card-body {
        padding: 18px 16px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        flex: 1;
    }

    .match-card-title {
        font-size: 17px;
        font-weight: 700;
        color: var(--text-primary);
        line-height: 1.35;
    }

    .match-card-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 13px;
        color: var(--text-muted);
    }

    .match-card-meta span {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .match-card-teams {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.6;
        border-top: 1px solid var(--border-color);
        padding-top: 12px;
        margin-top: 4px;
    }

    /* ========== Schedule List ========== */
    .schedule-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .schedule-item {
        display: flex;
        align-items: center;
        gap: 16px;
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm);
        padding: 14px 18px;
        transition: background var(--transition), border-color var(--transition);
        flex-wrap: wrap;
    }

    .schedule-item:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-light);
    }

    .schedule-time {
        font-family: var(--font-mono);
        font-size: 14px;
        font-weight: 600;
        color: var(--accent-orange-light);
        min-width: 70px;
        white-space: nowrap;
    }

    .schedule-teams {
        flex: 1;
        min-width: 180px;
        font-size: 14px;
        font-weight: 600;
        color: var(--text-primary);
    }

    .schedule-league {
        font-size: 12px;
        color: var(--text-muted);
        background: var(--bg-soft);
        padding: 4px 10px;
        border-radius: 3px;
        white-space: nowrap;
    }

    .schedule-status {
        font-size: 12px;
        font-weight: 600;
        white-space: nowrap;
        padding: 4px 10px;
        border-radius: 3px;
    }

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

    .preview-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

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

    .preview-card-img {
        aspect-ratio: 21/10;
        overflow: hidden;
        background: var(--bg-soft);
    }

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

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

    .preview-card-body {
        padding: 20px;
    }

    .preview-card-tag {
        display: inline-block;
        font-size: 12px;
        font-weight: 600;
        color: var(--accent-orange-light);
        margin-bottom: 8px;
        letter-spacing: 0.5px;
    }

    .preview-card-title {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 8px;
        line-height: 1.35;
        color: var(--text-primary);
    }

    .preview-card-desc {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
    }

    /* ========== CTA Subscribe ========== */
    .cta-section {
        background: linear-gradient(135deg, rgba(0, 230, 118, 0.06), rgba(255, 109, 0, 0.05));
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 36px 32px;
        display: flex;
        align-items: center;
        gap: 28px;
        flex-wrap: wrap;
    }

    .cta-info {
        flex: 1;
        min-width: 260px;
    }

    .cta-info h3 {
        font-size: 22px;
        font-weight: 700;
        margin-bottom: 6px;
    }

    .cta-info p {
        font-size: 14px;
        color: var(--text-secondary);
    }

    .cta-form {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        min-width: 260px;
        flex: 1;
    }

    .cta-form input[type="text"],
    .cta-form input[type="email"] {
        flex: 1;
        min-width: 180px;
        padding: 12px 16px;
        background: var(--bg-primary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm);
        color: var(--text-primary);
        outline: none;
        transition: border-color var(--transition), box-shadow var(--transition);
    }

    .cta-form input:focus {
        border-color: var(--accent-green);
        box-shadow: var(--shadow-glow-green);
    }

    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 12px 28px;
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 0.5px;
        background: var(--accent-green);
        color: #0c0e0f;
        border: none;
        border-radius: var(--radius-sm);
        transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
        white-space: nowrap;
    }

    .btn-primary:hover {
        background: var(--accent-green-dark);
        box-shadow: var(--shadow-glow-green);
        transform: translateY(-2px);
    }

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

    .btn-outline {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 12px 24px;
        font-size: 14px;
        font-weight: 600;
        background: transparent;
        border: 1px solid var(--accent-green);
        color: var(--accent-green);
        border-radius: var(--radius-sm);
        transition: background var(--transition), color var(--transition), box-shadow var(--transition);
        white-space: nowrap;
    }

    .btn-outline:hover {
        background: rgba(0, 230, 118, 0.1);
        color: var(--accent-green-dark);
        box-shadow: var(--shadow-glow-green);
    }

    /* ========== FAQ ========== */
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
        max-width: 800px;
    }

    .faq-item {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: border-color var(--transition);
    }

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

    .faq-item summary {
        list-style: none;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 16px 18px;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        color: var(--text-primary);
        transition: color var(--transition);
    }

    .faq-item summary::-webkit-details-marker {
        display: none;
    }

    .faq-item summary::after {
        content: '+';
        font-size: 22px;
        font-weight: 400;
        color: var(--text-muted);
        transition: transform var(--transition), color var(--transition);
        flex-shrink: 0;
    }

    .faq-item[open] summary::after {
        transform: rotate(45deg);
        color: var(--accent-green);
    }

    .faq-item .faq-answer {
        padding: 0 18px 16px;
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
    }

    /* ========== Footer ========== */
    .site-footer {
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        padding: 48px 0 32px;
        margin-top: 24px;
    }

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

    .footer-brand h3 {
        font-size: 20px;
        font-weight: 800;
        margin-bottom: 10px;
        color: var(--text-primary);
    }

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

    .footer-col h4 {
        font-size: 14px;
        font-weight: 700;
        margin-bottom: 14px;
        color: var(--text-secondary);
        letter-spacing: 0.5px;
    }

    .footer-col ul {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .footer-col a {
        font-size: 13px;
        color: var(--text-muted);
        transition: color var(--transition);
    }

    .footer-col a:hover {
        color: var(--accent-green);
    }

    .footer-bottom {
        border-top: 1px solid var(--border-color);
        padding-top: 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
        font-size: 12px;
        color: var(--text-muted);
    }

    .footer-legal {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
    }

    .footer-legal a {
        color: var(--text-muted);
        transition: color var(--transition);
    }

    .footer-legal a:hover {
        color: var(--accent-green);
    }

    .footer-legal span {
        color: var(--border-light);
    }

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

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

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

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

        .nav-primary>li>a {
            padding: 14px 10px;
            font-size: 13px;
        }
    }

    @media (max-width: 768px) {
        .nav-toggle {
            display: block;
        }

        .nav-primary {
            position: absolute;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
            flex-direction: column;
            align-items: stretch;
            gap: 0;
            display: none;
            padding: 8px 16px 16px;
            box-shadow: var(--shadow-hard);
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }

        .nav-primary.open {
            display: flex;
        }

        .nav-primary>li>a {
            padding: 14px 12px;
            font-size: 15px;
            border-radius: var(--radius-sm);
        }

        .nav-primary>li.mega-trigger .mega-panel {
            position: static;
            width: 100%;
            display: none;
            margin-top: 4px;
            box-shadow: none;
            padding: 12px;
        }

        .nav-primary>li.mega-trigger.open .mega-panel {
            display: block;
        }

        .nav-primary>li.mega-trigger>a::after {
            float: right;
            margin-top: 8px;
        }

        .page-header-inner h1 {
            font-size: 28px;
        }

        .match-card-grid {
            grid-template-columns: 1fr;
        }

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

        .data-brief-card .stat-number {
            font-size: 28px;
        }

        .cta-section {
            flex-direction: column;
            align-items: stretch;
            padding: 24px 20px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }
    }

    @media (max-width: 480px) {
        .container {
            padding: 0 14px;
        }

        .data-brief-grid {
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }

        .data-brief-card {
            padding: 14px 12px;
        }

        .data-brief-card .stat-number {
            font-size: 24px;
        }

        .page-header-section {
            padding: 20px 0 24px;
        }

        .page-header-inner h1 {
            font-size: 24px;
        }

        .section {
            padding: 32px 0;
        }

        .cta-form input[type="text"],
        .cta-form input[type="email"] {
            min-width: 100%;
        }

        .schedule-item {
            gap: 10px;
            padding: 12px 14px;
        }
    }

/* roulang page: category3 */
:root {
            --bg-primary: #0c0e0f;
            --bg-secondary: #121519;
            --bg-card: #171b1f;
            --bg-card-hover: #1d2328;
            --bg-soft: #1a1f24;
            --text-primary: #f2f4f6;
            --text-secondary: #a8b3bd;
            --text-muted: #6b7783;
            --accent-green: #00e676;
            --accent-green-dark: #00c853;
            --accent-orange: #ff6d00;
            --accent-orange-light: #ff9100;
            --border-color: #2a3138;
            --border-light: #3a434b;
            --shadow-hard: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-glow-green: 0 0 20px rgba(0, 230, 118, 0.2);
            --shadow-glow-orange: 0 0 16px rgba(255, 109, 0, 0.18);
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            --container-max: 1200px;
            --header-height: 60px;
            --transition: 0.2s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-green);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* ========== Header / Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(12, 14, 15, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
            flex-wrap: nowrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .brand-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            border-radius: var(--radius-sm);
            clip-path: polygon(8% 8%, 92% 8%, 92% 92%, 8% 92%);
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--accent-green);
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-shrink: 1;
            min-width: 0;
            list-style: none;
        }
        .nav-primary>li {
            list-style: none;
            position: relative;
            white-space: nowrap;
        }
        .nav-primary>li>a {
            display: block;
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }
        .nav-primary>li>a:hover,
        .nav-primary>li>a.active {
            color: var(--text-primary);
            background: var(--bg-soft);
        }
        .nav-primary>li>a.active {
            color: var(--accent-green);
        }
        .nav-primary>li.mega-trigger>a::after {
            content: '';
            display: inline-block;
            margin-left: 6px;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 4px solid var(--text-muted);
            vertical-align: middle;
            transition: transform var(--transition);
        }
        .nav-primary>li.mega-trigger:hover>a::after {
            transform: rotate(180deg);
            border-top-color: var(--accent-green);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            width: 380px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hard);
            padding: 18px;
            display: none;
            z-index: 1001;
        }
        .nav-primary>li.mega-trigger:hover .mega-panel,
        .nav-primary>li.mega-trigger:focus-within .mega-panel {
            display: block;
        }
        .mega-panel h3 {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 1px;
        }
        .mega-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 6px;
        }
        .mega-links a {
            padding: 10px 12px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
        }
        .mega-links a:hover {
            background: var(--bg-card-hover);
            color: var(--accent-green);
        }
        .nav-toggle {
            display: none;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            font-size: 20px;
            line-height: 1;
            flex-shrink: 0;
        }
        /* ========== Breadcrumb ========== */
        .breadcrumb-wrap {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            list-style: none;
        }
        .breadcrumb li {
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: '/';
            margin: 0 6px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent-green);
        }
        .breadcrumb .current {
            color: var(--accent-green);
            font-weight: 600;
        }
        /* ========== Page Intro ========== */
        .page-intro {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
            padding: 30px 0 26px;
        }
        .page-intro h1 {
            font-size: 34px;
            font-weight: 800;
            letter-spacing: 1px;
            line-height: 1.2;
            margin-bottom: 10px;
        }
        .page-intro p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
        }
        /* ========== Sections ========== */
        .section {
            padding: 48px 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-head {
            margin-bottom: 28px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-head h2 {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: 0.3px;
            line-height: 1.3;
        }
        .section-head .section-sub {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 560px;
        }
        .section-head .section-link {
            font-size: 13px;
            color: var(--accent-green);
            font-weight: 600;
            white-space: nowrap;
        }
        .section-head .section-link:hover {
            color: var(--accent-green-dark);
        }
        /* ========== Stat Cards ========== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-3px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-hard);
        }
        .stat-card .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            text-transform: uppercase;
        }
        .stat-card .stat-value {
            font-size: 36px;
            font-weight: 800;
            font-family: var(--font-mono);
            color: var(--accent-green);
            line-height: 1.1;
            letter-spacing: -1px;
        }
        .stat-card .stat-value.orange {
            color: var(--accent-orange);
        }
        .stat-card .stat-desc {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        /* ========== Trend Chart (Pure CSS) ========== */
        .trend-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
        }
        .trend-chart {
            display: flex;
            align-items: flex-end;
            gap: 12px;
            height: 200px;
            padding-top: 20px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 16px;
        }
        .bar-group {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            height: 100%;
            justify-content: flex-end;
        }
        .bar {
            width: 100%;
            max-width: 48px;
            background: linear-gradient(180deg, var(--accent-green), var(--accent-green-dark));
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
            min-height: 8px;
            transition: filter var(--transition), transform var(--transition);
            cursor: default;
        }
        .bar.orange {
            background: linear-gradient(180deg, var(--accent-orange-light), var(--accent-orange));
        }
        .bar-group:hover .bar {
            filter: brightness(1.2);
            transform: scaleY(1.02);
            transform-origin: bottom;
        }
        .bar-label {
            font-size: 11px;
            color: var(--text-muted);
            text-align: center;
            white-space: nowrap;
        }
        .trend-legend {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .trend-legend span::before {
            content: '';
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 2px;
            margin-right: 6px;
        }
        .legend-green::before {
            background: var(--accent-green);
        }
        .legend-orange::before {
            background: var(--accent-orange);
        }
        /* ========== Data List Cards ========== */
        .data-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .data-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }
        .data-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-hard);
        }
        .data-card .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .data-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .data-card:hover .card-img img {
            transform: scale(1.04);
        }
        .data-card .card-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .data-card .card-tag {
            display: inline-block;
            background: rgba(0, 230, 118, 0.12);
            color: var(--accent-green);
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            width: fit-content;
        }
        .data-card .card-tag.orange {
            background: rgba(255, 109, 0, 0.12);
            color: var(--accent-orange);
        }
        .data-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .data-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }
        .data-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }
        .data-card .card-meta strong {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--accent-green);
            font-weight: 700;
        }
        /* ========== Comparison Table ========== */
        .table-wrap {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow-x: auto;
            padding: 0;
        }
        .table-wrap table {
            width: 100%;
            border-collapse: collapse;
            min-width: 680px;
            font-size: 14px;
        }
        .table-wrap th,
        .table-wrap td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .table-wrap th {
            background: var(--bg-soft);
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 12px;
            letter-spacing: 0.5px;
        }
        .table-wrap td {
            color: var(--text-secondary);
        }
        .table-wrap td:first-child {
            font-weight: 700;
            color: var(--text-primary);
        }
        .table-wrap td .delta-pos {
            color: var(--accent-green);
            font-family: var(--font-mono);
            font-weight: 600;
        }
        .table-wrap td .delta-neg {
            color: var(--accent-orange);
            font-family: var(--font-mono);
            font-weight: 600;
        }
        .table-wrap tr:last-child td {
            border-bottom: none;
        }
        .table-wrap tr:hover td {
            background: var(--bg-card-hover);
        }
        /* ========== Filter Tags ========== */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .filter-tag {
            padding: 8px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            cursor: pointer;
        }
        .filter-tag:hover,
        .filter-tag.active {
            background: rgba(0, 230, 118, 0.1);
            border-color: var(--accent-green);
            color: var(--accent-green);
        }
        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .faq-item summary {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background var(--transition);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
        }
        .faq-item[open] summary::after {
            content: '−';
            color: var(--accent-green);
            transform: rotate(180deg);
        }
        .faq-item summary:hover {
            background: var(--bg-card-hover);
        }
        .faq-item .faq-body {
            padding: 0 20px 18px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        /* ========== CTA ========== */
        .cta-band {
            background: linear-gradient(135deg, rgba(0, 230, 118, 0.08), rgba(255, 109, 0, 0.06));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .cta-band h2 {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 6px;
        }
        .cta-band p {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 520px;
        }
        .cta-band .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .cta-band .cta-form input {
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 14px;
            min-width: 260px;
            outline: none;
            transition: border-color var(--transition);
        }
        .cta-band .cta-form input:focus {
            border-color: var(--accent-green);
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            background: var(--accent-green);
            color: #0c0e0f;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.3px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .btn:hover {
            background: var(--accent-green-dark);
            color: #0c0e0f;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-green);
        }
        .btn:focus {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--accent-green);
            color: var(--accent-green);
        }
        .btn-outline:hover {
            background: rgba(0, 230, 118, 0.1);
            color: var(--accent-green);
            box-shadow: none;
        }
        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 28px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--accent-green);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-legal {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-legal a {
            color: var(--text-muted);
        }
        .footer-legal a:hover {
            color: var(--accent-green);
        }
        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-primary>li>a {
                padding: 12px 10px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-primary {
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                gap: 4px;
                display: none;
                box-shadow: var(--shadow-hard);
            }
            .nav-primary.open {
                display: flex;
            }
            .nav-primary>li {
                width: 100%;
            }
            .nav-primary>li>a {
                padding: 12px 14px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                padding: 8px 0 4px;
                display: none;
            }
            .nav-primary>li.mega-trigger:hover .mega-panel,
            .nav-primary>li.mega-trigger:focus-within .mega-panel {
                display: block;
            }
            .mega-links {
                grid-template-columns: 1fr;
            }
            .page-intro h1 {
                font-size: 28px;
            }
            .section {
                padding: 36px 0;
            }
            .section-head h2 {
                font-size: 22px;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card .stat-value {
                font-size: 26px;
            }
            .data-card-grid {
                grid-template-columns: 1fr;
            }
            .trend-chart {
                height: 160px;
                gap: 8px;
            }
            .cta-band {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-band .cta-form {
                width: 100%;
            }
            .cta-band .cta-form input {
                flex: 1;
                min-width: 0;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .breadcrumb {
                font-size: 12px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .stat-card .stat-value {
                font-size: 30px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .brand-logo .logo-mark {
                width: 24px;
                height: 24px;
            }
            .page-intro h1 {
                font-size: 24px;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }
            .trend-chart {
                height: 130px;
            }
            .bar-label {
                font-size: 9px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 13px;
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0c0e0f;
            --bg-secondary: #121519;
            --bg-card: #171b1f;
            --bg-card-hover: #1d2328;
            --bg-soft: #1a1f24;
            --text-primary: #f2f4f6;
            --text-secondary: #a8b3bd;
            --text-muted: #6b7783;
            --accent-green: #00e676;
            --accent-green-dark: #00c853;
            --accent-orange: #ff6d00;
            --accent-orange-light: #ff9100;
            --border-color: #2a3138;
            --border-light: #3a434b;
            --shadow-hard: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-glow-green: 0 0 20px rgba(0, 230, 118, 0.2);
            --shadow-glow-orange: 0 0 16px rgba(255, 109, 0, 0.18);
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            --container-max: 1200px;
            --header-height: 68px;
            --transition: 0.2s ease;
        }

        :root {
            --header-height: 60px;
        }

        :root {
            --bg-primary: #0c0e0f;
            --bg-secondary: #121519;
            --bg-card: #171b1f;
            --bg-card-hover: #1d2328;
            --bg-soft: #1a1f24;
            --text-primary: #f2f4f6;
            --text-secondary: #a8b3bd;
            --text-muted: #6b7783;
            --accent-green: #00e676;
            --accent-green-dark: #00c853;
            --accent-orange: #ff6d00;
            --accent-orange-light: #ff9100;
            --border-color: #2a3138;
            --border-light: #3a434b;
            --shadow-hard: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-glow-green: 0 0 20px rgba(0, 230, 118, 0.2);
            --shadow-glow-orange: 0 0 16px rgba(255, 109, 0, 0.18);
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            --container-max: 1200px;
            --header-height: 68px;
            --transition: 0.2s ease;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent-green);
        }

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

        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== Header / Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(12, 14, 15, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
            flex-wrap: nowrap;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            border-radius: var(--radius-sm);
            clip-path: polygon(8% 8%, 92% 8%, 92% 92%, 8% 92%);
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: var(--accent-green);
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-shrink: 1;
            min-width: 0;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-primary>li {
            list-style: none;
            position: relative;
            white-space: nowrap;
        }

        .nav-primary>li>a {
            display: block;
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }

        .nav-primary>li>a:hover,
        .nav-primary>li>a.active {
            color: var(--text-primary);
            background: var(--bg-soft);
        }

        .nav-primary>li>a.active {
            color: var(--accent-green);
        }

        .nav-primary>li.mega-trigger>a::after {
            content: '';
            display: inline-block;
            margin-left: 6px;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 4px solid var(--text-muted);
            vertical-align: middle;
            transition: transform var(--transition);
        }

        .nav-primary>li.mega-trigger:hover>a::after {
            transform: rotate(180deg);
            border-top-color: var(--accent-green);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            width: 380px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hard);
            padding: 18px;
            display: none;
            z-index: 1001;
        }

        .nav-primary>li.mega-trigger:hover .mega-panel,
        .nav-primary>li.mega-trigger:focus-within .mega-panel {
            display: block;
        }

        .mega-panel h3 {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .mega-panel .mega-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 6px;
        }

        .mega-panel .mega-links a {
            display: block;
            padding: 8px 10px;
            font-size: 13px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }

        .mega-panel .mega-links a:hover {
            background: var(--bg-soft);
            color: var(--accent-green);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 22px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: background var(--transition), border-color var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-soft);
            border-color: var(--border-light);
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-section {
            padding: 20px 0 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .breadcrumb li+li::before {
            content: '/';
            color: var(--text-muted);
            margin-right: 6px;
        }

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

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

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

        /* ========== Page Header ========== */
        .page-header-section {
            padding: 32px 0 40px;
            border-bottom: 1px solid var(--border-color);
            background: var(--bg-secondary);
        }

        .page-header-section .container {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 40px;
            align-items: center;
        }

        .page-header-content h1 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin: 0 0 14px;
            color: var(--text-primary);
            line-height: 1.2;
        }

        .page-header-content .page-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 0 20px;
            line-height: 1.7;
        }

        .page-header-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .page-header-tags .tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            transition: all var(--transition);
        }

        .page-header-tags .tag:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
        }

        .page-header-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-hard);
        }

        .stat-item {
            text-align: center;
        }

        .stat-item .stat-number {
            font-family: var(--font-mono);
            font-size: 26px;
            font-weight: 700;
            color: var(--accent-green);
            letter-spacing: -0.5px;
            display: block;
            margin-bottom: 2px;
        }

        .stat-item .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

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

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

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.3px;
            margin: 0 0 6px;
            color: var(--text-primary);
        }

        .section-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin: 0;
            max-width: 480px;
            line-height: 1.6;
        }

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

        .section-link:hover {
            color: var(--accent-green-dark);
        }

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

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

        .promo-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hard);
            border-color: var(--border-light);
        }

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

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

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

        .promo-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            background: var(--accent-orange);
            color: #fff;
            letter-spacing: 0.5px;
        }

        .promo-card-badge.green {
            background: var(--accent-green);
            color: #000;
        }

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

        .promo-card-title {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .promo-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 14px;
            flex: 1;
        }

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

        .promo-card-meta .deadline {
            color: var(--accent-orange-light);
            font-weight: 600;
        }

        /* ========== Filter Tags ========== */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .filter-tag {
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: pointer;
        }

        .filter-tag:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            box-shadow: var(--shadow-glow-green);
        }

        .filter-tag.active {
            background: var(--accent-green);
            color: #000;
            border-color: var(--accent-green);
            font-weight: 700;
        }

        /* ========== Rules Section ========== */
        .rules-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .rule-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .rule-card:hover {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-glow-green);
        }

        .rule-card .rule-icon {
            font-size: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--bg-soft);
            color: var(--accent-green);
            margin-bottom: 14px;
        }

        .rule-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .rule-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== Timeline / Schedule ========== */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .schedule-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition);
        }

        .schedule-item:last-child {
            border-bottom: none;
        }

        .schedule-item:hover {
            background: var(--bg-soft);
        }

        .schedule-date {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-green);
            min-width: 100px;
            flex-shrink: 0;
        }

        .schedule-info {
            flex: 1;
        }

        .schedule-info .name {
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 2px;
        }

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

        .schedule-status {
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 20px;
            flex-shrink: 0;
        }

        .schedule-status.ongoing {
            background: rgba(0, 230, 118, 0.15);
            color: var(--accent-green);
        }

        .schedule-status.upcoming {
            background: rgba(255, 109, 0, 0.15);
            color: var(--accent-orange-light);
        }

        /* ========== CTA / Subscribe ========== */
        .cta-section {
            padding: 48px 0;
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

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

        .cta-content h2 {
            font-size: 26px;
            font-weight: 800;
            margin: 0 0 12px;
            color: var(--text-primary);
        }

        .cta-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 20px;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-md);
            background: var(--accent-orange);
            color: #fff;
            border: none;
            transition: all var(--transition);
            cursor: pointer;
        }

        .cta-btn:hover {
            background: var(--accent-orange-light);
            box-shadow: var(--shadow-glow-orange);
            transform: translateY(-2px);
            color: #fff;
        }

        .cta-form-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-hard);
        }

        .cta-form-wrapper h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 16px;
            color: var(--text-primary);
        }

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

        .subscribe-form input {
            flex: 1;
            padding: 12px 16px;
            font-size: 14px;
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .subscribe-form input::placeholder {
            color: var(--text-muted);
        }

        .subscribe-form input:focus {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-glow-green);
        }

        .subscribe-form button {
            padding: 12px 20px;
            font-size: 14px;
            font-weight: 700;
            background: var(--accent-green);
            color: #000;
            border: none;
            border-radius: var(--radius-md);
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background: var(--accent-green-dark);
            box-shadow: var(--shadow-glow-green);
        }

        .form-hint {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color var(--transition);
        }

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

        .faq-item summary {
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition);
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            content: '−';
            color: var(--accent-green);
            transform: rotate(180deg);
        }

        .faq-item summary:hover {
            color: var(--accent-green);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item .faq-answer p {
            margin: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }

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

        .footer-brand h3 {
            font-size: 18px;
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--text-primary);
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--text-primary);
        }

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

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-legal {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-legal a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-legal a:hover {
            color: var(--accent-green);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .page-header-section .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

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

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

            .nav-primary>li>a {
                padding: 14px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: var(--header-height);
                padding: 8px 0;
            }

            .site-header .container {
                flex-wrap: wrap;
                gap: 8px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-primary {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: var(--bg-secondary);
                border: 1px solid var(--border-color);
                border-radius: var(--radius-lg);
                padding: 8px;
                margin-top: 8px;
                box-shadow: var(--shadow-hard);
            }

            .nav-primary.open {
                display: flex;
            }

            .nav-primary>li>a {
                padding: 12px 16px;
                font-size: 14px;
                border-radius: var(--radius-sm);
            }

            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                padding: 8px 0 0;
                margin-top: 4px;
            }

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

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

            .page-header-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
                padding: 16px;
            }

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

            .section {
                padding: 36px 0;
            }

            .cta-section {
                padding: 36px 0;
            }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .schedule-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 16px;
            }

            .schedule-date {
                min-width: auto;
            }

            .page-header-content h1 {
                font-size: 30px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }

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

            .page-header-stats {
                grid-template-columns: repeat(3, 1fr);
                padding: 12px;
                gap: 4px;
            }

            .stat-item .stat-number {
                font-size: 18px;
            }

            .stat-item .stat-label {
                font-size: 10px;
            }

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

            .promo-card-body {
                padding: 14px 16px 16px;
            }

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

            .filter-tag {
                padding: 6px 12px;
                font-size: 12px;
            }

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

            .cta-form-wrapper {
                padding: 18px;
            }

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

            .faq-item .faq-answer {
                padding: 0 16px 16px;
                font-size: 13px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0c0e0f;
            --bg-secondary: #121519;
            --bg-card: #171b1f;
            --bg-card-hover: #1d2328;
            --bg-soft: #1a1f24;
            --text-primary: #f2f4f6;
            --text-secondary: #a8b3bd;
            --text-muted: #6b7783;
            --accent-green: #00e676;
            --accent-green-dark: #00c853;
            --accent-orange: #ff6d00;
            --accent-orange-light: #ff9100;
            --border-color: #2a3138;
            --border-light: #3a434b;
            --shadow-hard: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-glow-green: 0 0 20px rgba(0, 230, 118, 0.2);
            --shadow-glow-orange: 0 0 16px rgba(255, 109, 0, 0.18);
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            --container-max: 1200px;
            --header-height: 68px;
            --transition: 0.2s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            text-size-adjust: 100%;
        }
        *, *::before, *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-green);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(12, 14, 15, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
            flex-wrap: nowrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .brand-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            border-radius: var(--radius-sm);
            clip-path: polygon(8% 8%, 92% 8%, 92% 92%, 8% 92%);
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--accent-green);
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-shrink: 1;
            min-width: 0;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .nav-primary>li {
            list-style: none;
            position: relative;
            white-space: nowrap;
        }
        .nav-primary>li>a {
            display: block;
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }
        .nav-primary>li>a:hover,
        .nav-primary>li>a.active {
            color: var(--text-primary);
            background: var(--bg-soft);
        }
        .nav-primary>li>a.active {
            color: var(--accent-green);
        }
        .nav-primary>li.mega-trigger>a::after {
            content: '';
            display: inline-block;
            margin-left: 6px;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 4px solid var(--text-muted);
            vertical-align: middle;
            transition: transform var(--transition);
        }
        .nav-primary>li.mega-trigger:hover>a::after,
        .nav-primary>li.mega-trigger:focus-within>a::after {
            transform: rotate(180deg);
            border-top-color: var(--accent-green);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            width: 380px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hard);
            padding: 18px;
            display: none;
            z-index: 1001;
        }
        .nav-primary>li.mega-trigger:hover .mega-panel,
        .nav-primary>li.mega-trigger:focus-within .mega-panel {
            display: block;
        }
        .mega-panel h3 {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            margin: 0 0 10px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .mega-panel .mega-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px;
        }
        .mega-panel .mega-links a {
            display: block;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-secondary);
            background: var(--bg-soft);
        }
        .mega-panel .mega-links a:hover {
            color: var(--accent-green);
            background: var(--bg-card-hover);
        }
        .nav-toggle {
            display: none;
            background: var(--bg-soft);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 22px;
            line-height: 1;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .breadcrumb-nav {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
        }
        .breadcrumb-nav .container {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-green);
        }
        .breadcrumb-nav .separator {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb-nav .current {
            color: var(--text-primary);
            font-weight: 600;
        }
        .page-subheader {
            background: var(--bg-secondary);
            padding: 48px 0 36px;
            border-bottom: 1px solid var(--border-color);
        }
        .page-subheader h1 {
            margin: 0 0 10px;
            font-size: 36px;
            font-weight: 800;
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .page-subheader .subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            max-width: 760px;
        }
        .security-intro {
            padding: 40px 0 20px;
        }
        .security-intro .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: center;
        }
        .security-intro .intro-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .security-intro .intro-text p {
            margin: 0 0 14px;
        }
        .security-intro .intro-text p:last-child {
            margin-bottom: 0;
        }
        .security-intro .intro-visual {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: var(--bg-card);
            min-height: 240px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .security-intro .intro-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 240px;
        }
        .section-block {
            padding: 36px 0;
        }
        .section-block .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .section-block .section-header h2 {
            margin: 0;
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }
        .section-block .section-header .section-meta {
            font-size: 13px;
            color: var(--text-muted);
        }
        .security-list-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }
        .security-list-grid .security-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: border-color var(--transition), background var(--transition);
        }
        .security-list-grid .security-item:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
        }
        .security-list-grid .security-item .item-index {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent-green);
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .security-list-grid .security-item h3 {
            margin: 0;
            font-size: 18px;
            font-weight: 700;
            line-height: 1.35;
        }
        .security-list-grid .security-item p {
            margin: 0;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .security-list-grid .security-item .item-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: auto;
            padding-top: 6px;
        }
        .security-list-grid .security-item .item-tags .tag {
            font-size: 12px;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            background: var(--bg-soft);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
        }
        .security-list-grid .security-item .item-tags .tag.highlight {
            color: var(--accent-green);
            border-color: rgba(0, 230, 118, 0.3);
            background: rgba(0, 230, 118, 0.06);
        }
        .featured-security {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .featured-security .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .featured-security .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .featured-security .featured-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-glow-orange);
        }
        .featured-security .featured-card .featured-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-orange-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .featured-security .featured-card h3 {
            margin: 0;
            font-size: 20px;
            font-weight: 700;
        }
        .featured-security .featured-card p {
            margin: 0;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .featured-security .featured-card .featured-action {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-green);
            margin-top: auto;
        }
        .featured-security .featured-card .featured-action:hover {
            color: var(--accent-green-dark);
        }
        .security-data-strip {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 24px;
        }
        .security-data-strip .data-item {
            text-align: center;
            padding: 8px;
        }
        .security-data-strip .data-item .data-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.2;
        }
        .security-data-strip .data-item .data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .security-tips {
            background: var(--bg-soft);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 22px 24px;
        }
        .security-tips .tips-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .security-tips .tips-header h3 {
            margin: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-orange-light);
        }
        .security-tips ul {
            margin: 0;
            padding: 0;
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .security-tips ul li {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 18px;
            position: relative;
        }
        .security-tips ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 9px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-orange);
        }
        .security-faq {
            padding: 40px 0 60px;
        }
        .security-faq .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }
        .security-faq .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: border-color var(--transition);
        }
        .security-faq .faq-item:hover {
            border-color: var(--border-light);
        }
        .security-faq .faq-item summary {
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            color: var(--text-primary);
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .security-faq .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .security-faq .faq-item summary::after {
            content: '+';
            font-size: 20px;
            color: var(--text-muted);
            flex-shrink: 0;
            transition: transform var(--transition), color var(--transition);
        }
        .security-faq .faq-item[open] summary::after {
            content: '−';
            color: var(--accent-green);
        }
        .security-faq .faq-item .faq-answer {
            margin-top: 12px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .security-faq .faq-item .faq-answer p {
            margin: 0;
        }
        .security-cta {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        .security-cta .cta-text h3 {
            margin: 0 0 6px;
            font-size: 20px;
            font-weight: 700;
        }
        .security-cta .cta-text p {
            margin: 0;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .security-cta .cta-button {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-green);
            color: var(--bg-primary);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 22px;
            border-radius: var(--radius-sm);
            border: none;
            transition: background var(--transition), box-shadow var(--transition);
            flex-shrink: 0;
        }
        .security-cta .cta-button:hover {
            background: var(--accent-green-dark);
            box-shadow: var(--shadow-glow-green);
            color: var(--bg-primary);
        }
        .security-cta .cta-button:focus {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 24px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 24px;
            margin-bottom: 28px;
        }
        .site-footer .footer-brand h3 {
            margin: 0 0 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .site-footer .footer-brand p {
            margin: 0;
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .site-footer .footer-col h4 {
            margin: 0 0 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col ul {
            margin: 0;
            padding: 0;
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent-green);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }
        .site-footer .footer-bottom .footer-legal {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .site-footer .footer-bottom .footer-legal a {
            color: var(--text-muted);
        }
        .site-footer .footer-bottom .footer-legal a:hover {
            color: var(--accent-green);
        }

        @media (max-width: 1024px) {
            .security-data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .security-intro .intro-grid {
                grid-template-columns: 1fr;
            }
            .featured-security .featured-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-primary {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-secondary);
                border-bottom: 1px solid var(--border-color);
                flex-direction: column;
                align-items: stretch;
                padding: 10px 20px 20px;
                gap: 2px;
                display: none;
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
                z-index: 999;
            }
            .nav-primary.open {
                display: flex;
            }
            .nav-primary>li>a {
                padding: 12px 16px;
                font-size: 15px;
            }
            .mega-panel {
                position: static;
                width: 100%;
                margin-top: 4px;
                display: none;
                border: 1px solid var(--border-color);
                box-shadow: none;
            }
            .nav-primary>li.mega-trigger:hover .mega-panel,
            .nav-primary>li.mega-trigger:focus-within .mega-panel,
            .nav-primary>li.mega-trigger .mega-panel.open {
                display: none;
            }
            .nav-primary>li.mega-trigger.mega-open .mega-panel {
                display: block;
            }
            .nav-primary>li.mega-trigger>a::after {
                content: '';
            }
            .page-subheader h1 {
                font-size: 28px;
            }
            .security-list-grid {
                grid-template-columns: 1fr;
            }
            .security-data-strip {
                grid-template-columns: 1fr;
            }
            .security-cta {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 480px) {
            .page-subheader {
                padding: 32px 0 24px;
            }
            .page-subheader h1 {
                font-size: 24px;
            }
            .section-block .section-header h2 {
                font-size: 20px;
            }
            .security-cta .cta-button {
                width: 100%;
                justify-content: center;
            }
            .security-data-strip .data-item .data-value {
                font-size: 26px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-primary: #0c0e0f;
            --bg-secondary: #121519;
            --bg-card: #171b1f;
            --bg-card-hover: #1d2328;
            --bg-soft: #1a1f24;
            --text-primary: #f2f4f6;
            --text-secondary: #a8b3bd;
            --text-muted: #6b7783;
            --accent-green: #00e676;
            --accent-green-dark: #00c853;
            --accent-orange: #ff6d00;
            --accent-orange-light: #ff9100;
            --border-color: #2a3138;
            --border-light: #3a434b;
            --shadow-hard: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-glow-green: 0 0 20px rgba(0, 230, 118, 0.2);
            --shadow-glow-orange: 0 0 16px rgba(255, 109, 0, 0.18);
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            --container-max: 1200px;
            --header-height: 68px;
            --transition: 0.2s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-green);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(12, 14, 15, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
            flex-wrap: nowrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .brand-logo .logo-mark {
            display: inline-block;
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            border-radius: var(--radius-sm);
            clip-path: polygon(8% 8%, 92% 8%, 92% 92%, 8% 92%);
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--accent-green);
        }
        .nav-primary {
            display: flex;
            align-items: center;
            gap: 2px;
            flex-shrink: 1;
            min-width: 0;
            list-style: none;
        }
        .nav-primary>li {
            list-style: none;
            position: relative;
            white-space: nowrap;
        }
        .nav-primary>li>a {
            display: block;
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.3px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: background var(--transition), color var(--transition);
        }
        .nav-primary>li>a:hover,
        .nav-primary>li>a.active {
            color: var(--text-primary);
            background: var(--bg-soft);
        }
        .nav-primary>li>a.active {
            color: var(--accent-green);
        }
        .nav-primary>li.mega-trigger>a::after {
            content: '';
            display: inline-block;
            margin-left: 6px;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 4px solid var(--text-muted);
            vertical-align: middle;
            transition: transform var(--transition);
        }
        .nav-primary>li.mega-trigger:hover>a::after {
            transform: rotate(180deg);
            border-top-color: var(--accent-green);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            width: 380px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hard);
            padding: 18px;
            display: none;
            z-index: 1001;
        }
        .nav-primary>li.mega-trigger:hover .mega-panel,
        .nav-primary>li.mega-trigger:focus-within .mega-panel {
            display: block;
        }
        .mega-panel h3 {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .mega-panel .mega-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6px;
        }
        .mega-panel .mega-links a {
            padding: 8px 12px;
            font-size: 13px;
            border-radius: var(--radius-sm);
            background: var(--bg-soft);
            transition: background var(--transition), color var(--transition);
        }
        .mega-panel .mega-links a:hover {
            background: var(--bg-card-hover);
            color: var(--accent-green);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 18px;
            padding: 6px 12px;
            line-height: 1;
            transition: background var(--transition), border-color var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-soft);
            border-color: var(--accent-green);
        }
        main {
            min-height: 60vh;
        }
        .breadcrumb-section {
            padding: 32px 0 0;
            background: var(--bg-primary);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent-green);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 11px;
        }
        .page-heading {
            padding: 20px 0 30px;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-color);
        }
        .page-heading h1 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 14px;
            color: var(--text-primary);
            line-height: 1.3;
        }
        .page-heading .lead {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.75;
        }
        .section {
            padding: 56px 0;
        }
        .section-alt {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 680px;
        }
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .news-card {
            display: grid;
            grid-template-columns: 240px 1fr;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
            min-height: 180px;
        }
        .news-card:hover {
            border-color: var(--border-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hard);
        }
        .news-card .news-img {
            background-size: cover;
            background-position: center;
            min-height: 100%;
            position: relative;
        }
        .news-card .news-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 0, 0, 0.35), rgba(0, 0, 0, 0.05));
        }
        .news-card .news-content {
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            gap: 8px;
        }
        .news-card .news-tag {
            align-self: flex-start;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 3px 10px;
            border-radius: 20px;
            background: rgba(0, 230, 118, 0.1);
            color: var(--accent-green);
            border: 1px solid rgba(0, 230, 118, 0.25);
        }
        .news-card .news-tag.orange {
            background: rgba(255, 109, 0, 0.12);
            color: var(--accent-orange-light);
            border-color: rgba(255, 109, 0, 0.3);
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--text-primary);
        }
        .news-card .news-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .news-card .news-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .news-card .news-link {
            align-self: flex-start;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-green);
            margin-top: 4px;
        }
        .news-card .news-link:hover {
            color: var(--accent-green-dark);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: left;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .stat-card:hover {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-glow-green);
        }
        .stat-card .stat-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-green);
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }
        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .stat-card .stat-trend {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
        }
        .featured-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-hard);
            transform: translateY(-3px);
        }
        .featured-card .featured-img {
            aspect-ratio: 16/9;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .featured-card .featured-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.1));
        }
        .featured-card .featured-content {
            padding: 18px 20px;
        }
        .featured-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .featured-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .brand-philosophy {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .brand-philosophy .text-block h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        .brand-philosophy .text-block p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .brand-philosophy .badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .brand-philosophy .badge-list span {
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            background: var(--bg-soft);
            border: 1px solid var(--border-light);
            color: var(--text-secondary);
            letter-spacing: 0.3px;
        }
        .updates-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .update-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: border-color var(--transition), background var(--transition);
        }
        .update-item:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
        }
        .update-item .dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .update-item .update-text {
            font-size: 14px;
            color: var(--text-secondary);
            flex: 1;
        }
        .update-item .update-date {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            font-family: var(--font-mono);
        }
        .subscribe-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            align-items: center;
        }
        .subscribe-box h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .subscribe-box p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
        }
        .subscribe-form input {
            flex: 1;
            padding: 12px 14px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 14px;
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .subscribe-form input::placeholder {
            color: var(--text-muted);
        }
        .subscribe-form input:focus {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-glow-green);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 22px;
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.3px;
            border-radius: var(--radius-sm);
            border: none;
            transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
            white-space: nowrap;
        }
        .btn-green {
            background: var(--accent-green);
            color: #0c0e0f;
        }
        .btn-green:hover {
            background: var(--accent-green-dark);
            color: #0c0e0f;
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-1px);
        }
        .btn-green:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-primary);
        }
        .btn-outline:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: rgba(0, 230, 118, 0.06);
        }
        .btn-orange {
            background: var(--accent-orange);
            color: #ffffff;
        }
        .btn-orange:hover {
            background: var(--accent-orange-light);
            color: #ffffff;
            box-shadow: var(--shadow-glow-orange);
            transform: translateY(-1px);
        }
        .faq-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
            max-width: 820px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-primary);
            list-style: none;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 20px;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            content: '−';
            color: var(--accent-green);
        }
        .faq-item summary:hover {
            color: var(--accent-green);
        }
        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-green);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }
        .footer-legal a {
            color: var(--text-muted);
        }
        .footer-legal a:hover {
            color: var(--accent-green);
        }
        @media (max-width: 1024px) {
            .nav-primary>li>a {
                padding: 14px 10px;
                font-size: 13px;
            }
            .mega-panel {
                width: 320px;
                right: -40px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-card {
                grid-template-columns: 200px 1fr;
            }
            .brand-philosophy {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .nav-primary {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg-secondary);
                border-bottom: 1px solid var(--border-color);
                padding: 12px 16px;
                gap: 4px;
                box-shadow: var(--shadow-hard);
                z-index: 1000;
            }
            .nav-primary.open {
                display: flex;
            }
            .nav-primary>li {
                width: 100%;
            }
            .nav-primary>li>a {
                padding: 12px 14px;
                font-size: 15px;
            }
            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                padding: 8px 0;
                display: none;
                background: transparent;
            }
            .nav-primary>li.mega-trigger:hover .mega-panel,
            .nav-primary>li.mega-trigger:focus-within .mega-panel {
                display: block;
            }
            .mega-panel h3 {
                display: none;
            }
            .mega-panel .mega-links {
                grid-template-columns: 1fr;
                gap: 4px;
            }
            .mega-panel .mega-links a {
                background: transparent;
                padding: 8px 14px;
                font-size: 14px;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .page-heading h1 {
                font-size: 28px;
            }
            .section {
                padding: 40px 0;
            }
            .news-card {
                grid-template-columns: 1fr;
            }
            .news-card .news-img {
                aspect-ratio: 16/8;
                min-height: 0;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .updates-list {
                grid-template-columns: 1fr;
            }
            .subscribe-box {
                grid-template-columns: 1fr;
                padding: 28px 24px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .page-heading h1 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 22px;
            }
            .news-card .news-content {
                padding: 16px 18px;
            }
            .news-card h3 {
                font-size: 16px;
            }
            .brand-philosophy .text-block h3 {
                font-size: 19px;
            }
            .brand-philosophy .text-block p {
                font-size: 14px;
            }
            .footer-legal {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }