/* roulang page: index */
:root {
            --color-bg: #0A0E12;
            --color-card: #11161C;
            --color-card-alt: #161D25;
            --color-primary: #00E5A0;
            --color-primary-dim: rgba(0, 229, 160, 0.15);
            --color-accent: #FF2D78;
            --color-accent-dim: rgba(255, 45, 120, 0.12);
            --color-purple: #7C3AFF;
            --color-purple-dim: rgba(124, 58, 255, 0.12);
            --color-text: #F2F5F7;
            --color-body: #B4BDC6;
            --color-muted: #6B7683;
            --color-border: #1E2630;
            --color-border-light: rgba(30, 38, 48, 0.6);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-lg: 16px;
            --radius-sm: 4px;
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-primary: 0 4px 20px rgba(0, 229, 160, 0.25);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --font-en: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 68px;
            --section-gap: 110px;
            --container-max: 1200px;
            --container-padding: 24px;
        }

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

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

        body {
            background-color: var(--color-bg);
            color: var(--color-body);
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover,
        a:focus {
            color: #33ffb3;
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }
        input,
        textarea,
        select {
            font-family: var(--font-cn);
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--color-text);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 0.5em;
            letter-spacing: -0.01em;
        }
        h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.18;
        }
        h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.28;
        }
        h3 {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.4;
        }
        p {
            margin: 0 0 1em;
            color: var(--color-body);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 14px;
            position: relative;
        }
        .section-tag::before {
            content: '';
            width: 20px;
            height: 1px;
            background: var(--color-primary);
            display: inline-block;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-body);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

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

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            z-index: 1000;
            background-color: rgba(10, 14, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(30, 38, 48, 0.5);
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background-color: rgba(10, 14, 18, 0.95);
            border-bottom-color: var(--color-border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }
        .nav-left {
            justify-content: flex-end;
        }
        .nav-right {
            justify-content: flex-start;
        }
        .nav-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            white-space: nowrap;
        }
        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #00b882 60%, #009966 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
        }
        .nav-logo .logo-icon svg {
            width: 18px;
            height: 18px;
            fill: var(--color-bg);
        }
        .nav-logo span.logo-text {
            color: var(--color-text);
        }
        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--color-primary);
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: rgba(242, 245, 247, 0.85);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            transition: width var(--transition-base);
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--color-primary);
        }
        .nav-link:hover::after,
        .nav-link:focus::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--color-primary);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: transparent;
            border: none;
            width: 36px;
            height: 36px;
            padding: 4px;
            position: relative;
            z-index: 1001;
            flex-shrink: 0;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-text);
            margin: 4px auto;
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 18, 0.98);
            z-index: 999;
            padding: 32px 24px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }
        .mobile-nav-overlay.open {
            display: flex;
        }
        .mobile-nav-overlay .nav-link {
            font-size: 18px;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border-light);
            display: block;
            width: 100%;
        }

        /* ============ HERO ============ */
        .hero {
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding: calc(var(--nav-height) + 40px) 0 60px;
            position: relative;
            overflow: hidden;
            background-color: var(--color-bg);
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                linear-gradient(rgba(30, 38, 48, 0.25) 1px, transparent 1px),
                linear-gradient(90deg, rgba(30, 38, 48, 0.25) 1px, transparent 1px);
            background-size: 56px 56px;
            pointer-events: none;
            z-index: 0;
        }
        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 60px;
            align-items: center;
        }
        .hero-content {
            padding-right: 10px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: var(--color-primary-dim);
            border: 1px solid rgba(0, 229, 160, 0.4);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero-title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            color: var(--color-text);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .hero-title .highlight {
            color: var(--color-primary);
        }
        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-body);
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }
        .hero-kpis {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-kpi {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-kpi .kpi-num {
            font-family: var(--font-en);
            font-size: 32px;
            font-weight: 800;
            color: var(--color-text);
            line-height: 1.1;
        }
        .hero-kpi .kpi-label {
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 500;
        }
        .hero-visual {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual-wrapper {
            position: relative;
            width: 100%;
            height: 100%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            transform: translateY(16px);
            transition: transform var(--transition-base);
        }
        .hero-visual-wrapper:hover {
            transform: translateY(8px);
        }
        .hero-visual-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .hero-visual-badge {
            position: absolute;
            bottom: 24px;
            right: 24px;
            background: rgba(10, 14, 18, 0.88);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 229, 160, 0.4);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            min-width: 140px;
            z-index: 2;
        }
        .hero-visual-badge .badge-num {
            font-family: var(--font-en);
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.1;
        }
        .hero-visual-badge .badge-label {
            font-size: 12px;
            color: var(--color-body);
            font-weight: 500;
        }
        .hero-visual-badge.secondary {
            bottom: 24px;
            left: 24px;
            right: auto;
            border-color: rgba(255, 45, 120, 0.4);
        }
        .hero-visual-badge.secondary .badge-num {
            color: var(--color-accent);
        }

        /* ============ BUTTONS ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            border: none;
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--color-primary);
            color: var(--color-bg);
            box-shadow: var(--shadow-primary);
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: #33ffb3;
            color: var(--color-bg);
            box-shadow: 0 6px 28px rgba(0, 229, 160, 0.38);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(0, 229, 160, 0.2);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
        }
        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--color-primary-dim);
            color: var(--color-primary);
            border-color: var(--color-primary);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--color-text);
            border: 1px solid var(--color-border);
        }
        .btn-outline-light:hover,
        .btn-outline-light:focus {
            border-color: rgba(242, 245, 247, 0.5);
            color: var(--color-text);
            background: rgba(242, 245, 247, 0.05);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
            border-radius: 8px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 4px;
        }

        /* ============ SERVICE SECTION ============ */
        .section-service {
            padding: var(--section-gap) 0;
            background-color: var(--color-bg);
        }
        .service-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 0.8fr;
            gap: 24px;
        }
        .service-card-horizontal {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 30px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .service-card-horizontal:hover {
            border-color: rgba(0, 229, 160, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .service-card-horizontal .service-icon {
            width: 56px;
            height: 56px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            border: 1px solid var(--color-border-light);
        }
        .service-card-horizontal .service-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .service-card-horizontal .service-body {
            flex: 1;
        }
        .service-card-horizontal h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .service-card-horizontal p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-body);
            margin-bottom: 12px;
        }
        .service-card-horizontal .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .service-panel {
            background: var(--color-card-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 26px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition-base);
        }
        .service-panel:hover {
            border-color: rgba(124, 58, 255, 0.4);
            box-shadow: var(--shadow-hover);
        }
        .service-panel h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .service-panel .panel-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border-light);
            gap: 12px;
        }
        .service-panel .panel-row:last-child {
            border-bottom: none;
        }
        .service-panel .panel-label {
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 500;
        }
        .service-panel .panel-value {
            font-family: var(--font-en);
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
        }

        /* ============ DATA SECTION ============ */
        .section-data {
            padding: var(--section-gap) 0;
            background-color: #0B0F14;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .data-item {
            padding: 24px 16px;
            border-radius: var(--radius-card);
            background: transparent;
            border: 1px solid transparent;
            transition: all var(--transition-base);
        }
        .data-item:hover {
            border-color: var(--color-border);
            background: var(--color-card);
        }
        .data-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 2px;
            margin-bottom: 12px;
        }
        .data-num {
            font-family: var(--font-en);
            font-size: 64px;
            font-weight: 800;
            color: var(--color-text);
            line-height: 1.05;
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }
        .data-note {
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 500;
            line-height: 1.5;
        }

        /* ============ CASE SECTION ============ */
        .section-case {
            padding: var(--section-gap) 0;
            background-color: var(--color-bg);
        }
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .case-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            position: relative;
        }
        .case-card:hover {
            border-color: rgba(0, 229, 160, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .case-card-img {
            width: 100%;
            height: 240px;
            overflow: hidden;
            position: relative;
        }
        .case-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .case-card:hover .case-card-img img {
            transform: scale(1.04);
        }
        .case-card-img .case-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 6px 14px;
            background: rgba(10, 14, 18, 0.85);
            border: 1px solid rgba(0, 229, 160, 0.4);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }
        .case-card-body {
            padding: 24px 26px;
        }
        .case-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }
        .case-card-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-body);
            margin-bottom: 0;
        }

        /* ============ SOLUTION SECTION ============ */
        .section-solution {
            padding: var(--section-gap) 0;
            background-color: #0B0F14;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .solution-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 56px;
        }
        .solution-row:last-child {
            margin-bottom: 0;
        }
        .solution-row.reversed .solution-img {
            order: 2;
        }
        .solution-row.reversed .solution-content {
            order: 1;
        }
        .solution-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            height: 320px;
        }
        .solution-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .solution-img:hover img {
            transform: scale(1.03);
        }
        .solution-content h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
        }
        .solution-content .solution-points {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .solution-content .solution-points li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
            color: var(--color-body);
            border-bottom: 1px solid var(--color-border-light);
        }
        .solution-content .solution-points li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-primary);
            margin-top: 9px;
            flex-shrink: 0;
        }

        /* ============ NEWS SECTION ============ */
        .section-news {
            padding: var(--section-gap) 0;
            background-color: var(--color-bg);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 0.5fr;
            gap: 36px;
        }
        .news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .news-item {
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border-light);
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: all var(--transition-base);
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-item:first-child {
            padding-top: 0;
        }
        .news-date {
            font-family: var(--font-en);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-muted);
            min-width: 70px;
            padding-top: 2px;
            letter-spacing: 0.3px;
        }
        .news-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
            transition: color var(--transition-fast);
        }
        .news-content h4:hover {
            color: var(--color-primary);
        }
        .news-content p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-body);
            margin-bottom: 0;
        }
        .news-sidebar {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            height: fit-content;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }
        .news-sidebar h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
        }
        .news-sidebar .sidebar-link {
            display: block;
            padding: 10px 0;
            font-size: 14px;
            color: var(--color-body);
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .news-sidebar .sidebar-link:last-child {
            border-bottom: none;
        }
        .news-sidebar .sidebar-link:hover {
            color: var(--color-primary);
            padding-left: 6px;
        }

        /* ============ BRAND INTRO ============ */
        .section-brand {
            padding: var(--section-gap) 0;
            background-color: #0B0F14;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .brand-content {
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
        }
        .brand-content h2 {
            margin-bottom: 24px;
        }
        .brand-content p {
            font-size: 16px;
            line-height: 2.0;
            color: var(--color-body);
            text-align: left;
            margin-bottom: 18px;
        }

        /* ============ TESTIMONIAL SECTION ============ */
        .section-testimonial {
            padding: var(--section-gap) 0;
            background-color: var(--color-bg);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            transition: all var(--transition-base);
        }
        .testimonial-card:hover {
            border-color: rgba(0, 229, 160, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .testimonial-card .quote-mark {
            font-size: 40px;
            line-height: 1;
            color: var(--color-primary);
            opacity: 0.5;
            font-family: Georgia, serif;
            margin-bottom: 12px;
            display: block;
        }
        .testimonial-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-body);
            margin-bottom: 16px;
        }
        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .author-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--color-primary-dim);
            border: 1px solid rgba(0, 229, 160, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary);
        }
        .testimonial-card .author-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
        }
        .testimonial-card .author-role {
            font-size: 12px;
            color: var(--color-muted);
        }

        /* ============ PARTNER SECTION ============ */
        .section-partner {
            padding: var(--section-gap) 0;
            background-color: #0B0F14;
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .partner-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }
        .partner-tag {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 16px 12px;
            text-align: center;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-body);
            transition: all var(--transition-base);
            cursor: default;
        }
        .partner-tag:hover {
            border-color: rgba(0, 229, 160, 0.4);
            color: var(--color-text);
            background: var(--color-card-alt);
        }

        /* ============ FAQ SECTION ============ */
        .section-faq {
            padding: var(--section-gap) 0;
            background-color: var(--color-bg);
        }
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .faq-list .accordion {
            background: transparent;
            border: none;
        }
        .faq-list .accordion-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-list .accordion-item:hover {
            border-color: rgba(0, 229, 160, 0.3);
        }
        .faq-list .accordion-title {
            background: transparent;
            border: none;
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            position: relative;
            line-height: 1.5;
        }
        .faq-list .accordion-title::before {
            content: '+';
            position: absolute;
            right: 24px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 22px;
            font-weight: 300;
            color: var(--color-primary);
            transition: transform var(--transition-fast);
        }
        .faq-list .accordion-item.is-active .accordion-title::before {
            content: '−';
            color: var(--color-accent);
        }
        .faq-list .accordion-content {
            padding: 0 24px 22px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-body);
        }

        /* ============ CTA SECTION ============ */
        .section-cta {
            padding: var(--section-gap) 0;
            background-color: #0B0F14;
            border-top: 1px solid var(--color-border-light);
            position: relative;
            overflow: hidden;
        }
        .section-cta::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-content {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        .cta-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 16px;
            color: var(--color-body);
            margin-bottom: 28px;
        }
        .cta-content .btn-lg {
            margin-bottom: 16px;
        }
        .cta-content .cta-note {
            font-size: 13px;
            color: var(--color-muted);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background-color: #080B0E;
            border-top: 1px solid var(--color-border);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.7;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: var(--color-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border-light);
            padding-top: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            align-items: center;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 12px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
        }
        .footer-bottom a {
            font-size: 12px;
            color: var(--color-muted);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .footer-bottom a:hover {
            color: var(--color-primary);
        }
        .footer-links-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .footer-links-row a {
            font-size: 12px;
            color: var(--color-muted);
            text-decoration: none;
        }
        .footer-links-row a:hover {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        /* ============ BACK TO TOP ============ */
        .back-to-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 46px;
            height: 46px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text);
            font-size: 20px;
            z-index: 900;
            transition: all var(--transition-base);
            opacity: 0;
            pointer-events: none;
            cursor: pointer;
        }
        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .back-to-top:hover {
            background: var(--color-primary);
            color: var(--color-bg);
            border-color: var(--color-primary);
        }

        /* ============ RESPONSIVE ============ */
        @media screen and (max-width: 1024px) {
            :root {
                --section-gap: 80px;
            }
            h1 {
                font-size: 38px;
            }
            .hero {
                min-height: auto;
                padding: calc(var(--nav-height) + 32px) 0 48px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-title {
                font-size: 38px;
            }
            .hero-visual {
                min-height: 360px;
            }
            .service-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-panel {
                grid-column: span 2;
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: space-between;
            }
            .service-panel h3 {
                width: 100%;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .data-num {
                font-size: 48px;
            }
            .case-grid {
                gap: 20px;
            }
            .solution-row {
                gap: 32px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-sidebar {
                position: static;
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partner-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --section-gap: 64px;
                --container-padding: 18px;
            }
            .nav-left,
            .nav-right {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .site-header .container {
                justify-content: space-between;
                gap: 12px;
            }
            .nav-logo {
                font-size: 18px;
                gap: 6px;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
            }
            .hero {
                padding: calc(var(--nav-height) + 24px) 0 40px;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-visual {
                min-height: 280px;
            }
            .hero-kpis {
                gap: 20px;
            }
            .hero-kpi .kpi-num {
                font-size: 26px;
            }
            .service-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .service-panel {
                grid-column: span 1;
                flex-direction: column;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-num {
                font-size: 40px;
            }
            .case-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .solution-row,
            .solution-row.reversed {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .solution-row.reversed .solution-img {
                order: 1;
            }
            .solution-row.reversed .solution-content {
                order: 2;
            }
            .solution-img {
                height: 240px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .partner-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .back-to-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
                font-size: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            h2 {
                font-size: 26px;
            }
        }

        @media screen and (max-width: 520px) {
            :root {
                --section-gap: 52px;
                --container-padding: 14px;
            }
            .hero-title {
                font-size: 26px;
            }
            .hero-subtitle {
                font-size: 14px;
                line-height: 1.7;
            }
            .hero-cta-group {
                gap: 10px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 15px;
            }
            .data-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .data-item {
                padding: 16px;
                border: 1px solid var(--color-border-light);
            }
            .partner-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .news-date {
                font-size: 11px;
                min-width: 55px;
            }
            .news-content h4 {
                font-size: 14px;
            }
            .faq-list .accordion-title {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-list .accordion-title::before {
                right: 16px;
                font-size: 18px;
            }
            .faq-list .accordion-content {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --color-bg: #0A0E12;
            --color-card: #11161C;
            --color-card-alt: #161D25;
            --color-primary: #00E5A0;
            --color-primary-dim: rgba(0, 229, 160, 0.15);
            --color-accent: #FF2D78;
            --color-accent-dim: rgba(255, 45, 120, 0.12);
            --color-purple: #7C3AFF;
            --color-purple-dim: rgba(124, 58, 255, 0.12);
            --color-text: #F2F5F7;
            --color-body: #B4BDC6;
            --color-muted: #6B7683;
            --color-border: #1E2630;
            --color-border-light: rgba(30, 38, 48, 0.6);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-lg: 16px;
            --radius-sm: 4px;
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-primary: 0 4px 20px rgba(0, 229, 160, 0.25);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --font-en: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 68px;
            --section-gap: 80px;
            --container-max: 1200px;
            --container-padding: 24px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            background-color: var(--color-bg);
            color: var(--color-body);
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover,
        a:focus {
            color: #33ffb3;
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }
        input,
        select,
        textarea {
            font-family: var(--font-cn);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 14px;
            position: relative;
        }
        .section-tag::before {
            content: '';
            width: 20px;
            height: 1px;
            background: var(--color-primary);
            display: inline-block;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-body);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            z-index: 1000;
            background-color: rgba(10, 14, 18, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(30, 38, 48, 0.5);
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background-color: rgba(10, 14, 18, 0.97);
            border-bottom-color: var(--color-border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }
        .nav-left {
            justify-content: flex-end;
        }
        .nav-right {
            justify-content: flex-start;
        }
        .nav-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            white-space: nowrap;
        }
        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #00b882 60%, #009966 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon svg {
            width: 22px;
            height: 22px;
            fill: #0A0E12;
        }
        .nav-logo .logo-text {
            font-weight: 800;
            color: var(--color-text);
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: rgba(242, 245, 247, 0.85);
            position: relative;
            padding: 6px 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            transition: width var(--transition-base);
            border-radius: 1px;
        }
        .nav-link:hover {
            color: var(--color-primary);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--color-primary);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
            align-items: center;
            justify-content: center;
            z-index: 1001;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--color-text);
            border-radius: 1px;
            transition: all var(--transition-base);
        }
        .hamburger[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .hamburger[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            padding-top: calc(var(--nav-height) + 28px);
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-border-light);
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb-bar a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-bar .sep {
            color: var(--color-muted);
            font-size: 12px;
        }
        .breadcrumb-bar .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* ============ PAGE BANNER ============ */
        .page-banner {
            background: linear-gradient(180deg, rgba(0, 229, 160, 0.07) 0%, rgba(10, 14, 18, 0) 70%);
            padding: 32px 0 36px;
            border-bottom: 1px solid var(--color-border-light);
        }
        .page-banner .container {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .page-banner h1 {
            font-size: 38px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.02em;
            margin: 0 0 10px;
            line-height: 1.25;
        }
        .page-banner .banner-sub {
            font-size: 16px;
            color: var(--color-body);
            margin: 0;
            max-width: 560px;
            line-height: 1.8;
        }
        .banner-stats {
            display: flex;
            gap: 28px;
            flex-shrink: 0;
        }
        .banner-stat {
            text-align: right;
        }
        .banner-stat .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            letter-spacing: -0.01em;
        }
        .banner-stat .stat-label {
            font-size: 12px;
            color: var(--color-muted);
            margin-top: 4px;
        }

        /* ============ FILTER + LIST LAYOUT ============ */
        .tournament-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 32px;
            padding: 40px 0 60px;
        }
        .filter-sidebar {
            align-self: start;
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }
        .filter-panel {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
        }
        .filter-panel h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 20px;
            letter-spacing: 0.01em;
        }
        .filter-group {
            margin-bottom: 20px;
        }
        .filter-group:last-child {
            margin-bottom: 0;
        }
        .filter-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-muted);
            margin-bottom: 8px;
            letter-spacing: 0.03em;
        }
        .filter-select {
            width: 100%;
            background: var(--color-card-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            color: var(--color-text);
            padding: 10px 14px;
            font-size: 14px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7683' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            cursor: pointer;
        }
        .filter-select:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px var(--color-primary-dim);
            outline: none;
        }
        .filter-checkbox-group {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .filter-checkbox-group label {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-body);
            font-weight: 400;
            cursor: pointer;
            margin-bottom: 0;
        }
        .filter-checkbox-group input[type="checkbox"] {
            accent-color: var(--color-primary);
            width: 16px;
            height: 16px;
            cursor: pointer;
            flex-shrink: 0;
        }
        .filter-actions {
            display: flex;
            gap: 10px;
            margin-top: 20px;
        }
        .btn-primary-sm {
            background: var(--color-primary);
            color: #0A0E12;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 18px;
            font-size: 14px;
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: var(--shadow-primary);
            flex: 1;
            text-align: center;
        }
        .btn-primary-sm:hover {
            background: #33ffb3;
            box-shadow: 0 6px 24px rgba(0, 229, 160, 0.35);
        }
        .btn-outline-sm {
            background: transparent;
            color: var(--color-primary);
            font-weight: 500;
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-btn);
            padding: 10px 18px;
            font-size: 14px;
            transition: background var(--transition-fast), color var(--transition-fast);
            flex: 1;
            text-align: center;
        }
        .btn-outline-sm:hover {
            background: var(--color-primary-dim);
            color: #33ffb3;
        }

        .match-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .match-row {
            display: flex;
            gap: 20px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            align-items: center;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            cursor: pointer;
        }
        .match-row:hover {
            border-color: rgba(0, 229, 160, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .match-time {
            flex-shrink: 0;
            text-align: center;
            min-width: 72px;
        }
        .match-time .date {
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 500;
        }
        .match-time .time {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-text);
        }
        .match-teams {
            flex: 1;
            display: flex;
            align-items: center;
            gap: 12px;
            justify-content: center;
        }
        .match-team {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: center;
        }
        .match-vs {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-accent);
            background: var(--color-accent-dim);
            padding: 4px 10px;
            border-radius: 4px;
            letter-spacing: 0.05em;
        }
        .match-tag {
            flex-shrink: 0;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            max-width: 130px;
        }
        .match-tag .tag {
            font-size: 11px;
            font-weight: 600;
            padding: 4px 8px;
            border-radius: 4px;
            background: var(--color-card-alt);
            color: var(--color-body);
            border: 1px solid var(--color-border-light);
            white-space: nowrap;
        }
        .match-tag .tag.hot {
            background: var(--color-accent-dim);
            color: var(--color-accent);
            border-color: rgba(255, 45, 120, 0.3);
        }
        .match-tag .tag.live {
            background: var(--color-primary-dim);
            color: var(--color-primary);
            border-color: rgba(0, 229, 160, 0.3);
        }
        .match-arrow {
            flex-shrink: 0;
            color: var(--color-muted);
            font-size: 20px;
            transition: color var(--transition-fast), transform var(--transition-fast);
        }
        .match-row:hover .match-arrow {
            color: var(--color-primary);
            transform: translateX(4px);
        }

        /* ============ TOURNAMENT INFO BAND ============ */
        .info-band {
            background: var(--color-card-alt);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
            padding: 28px 0;
        }
        .info-band .container {
            display: flex;
            gap: 20px;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .info-band .band-text {
            font-size: 15px;
            color: var(--color-body);
            max-width: 500px;
            line-height: 1.7;
        }
        .info-band .band-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .info-band .badge-item {
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 13px;
            color: var(--color-text);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .badge-item .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
        }

        /* ============ SECTION COMMON ============ */
        .section {
            padding: 60px 0;
        }
        .section-alt {
            background: rgba(17, 22, 28, 0.6);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #080B0F;
            border-top: 1px solid var(--color-border);
            padding: 56px 0 28px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-text);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.75;
            max-width: 260px;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border-light);
            padding-top: 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--color-muted);
            margin: 0;
        }
        .footer-links-row {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }
        .footer-links-row a {
            font-size: 13px;
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }
        .footer-links-row a:hover {
            color: var(--color-primary);
        }

        /* ============ MOBILE RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .nav-left,
            .nav-right {
                gap: 18px;
            }
            .nav-link {
                font-size: 13px;
            }
            .tournament-layout {
                grid-template-columns: 240px 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 64px;
                --container-padding: 18px;
            }
            .site-header .container {
                justify-content: space-between;
            }
            .hamburger {
                display: flex;
            }
            .nav-left,
            .nav-right {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(10, 14, 18, 0.98);
                padding: 20px 24px;
                gap: 16px;
                align-items: flex-start;
                border-bottom: 1px solid var(--color-border);
                flex: none;
                justify-content: flex-start;
            }
            .nav-left.open,
            .nav-right.open {
                display: flex;
            }
            .nav-left {
                top: var(--nav-height);
            }
            .nav-right {
                top: calc(var(--nav-height) + 140px);
            }
            .nav-link {
                font-size: 17px;
                font-weight: 600;
                padding: 8px 0;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
            }
            .nav-logo .logo-icon svg {
                width: 18px;
                height: 18px;
            }
            .breadcrumb-bar {
                padding-top: calc(var(--nav-height) + 16px);
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .banner-stats {
                gap: 16px;
            }
            .banner-stat .stat-num {
                font-size: 22px;
            }
            .tournament-layout {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 28px 0 40px;
            }
            .filter-sidebar {
                position: static;
            }
            .filter-panel {
                padding: 18px 16px;
            }
            .match-row {
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 18px;
                gap: 12px;
            }
            .match-teams {
                justify-content: flex-start;
                gap: 8px;
                flex-wrap: wrap;
            }
            .match-tag {
                max-width: none;
            }
            .section-title {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .info-band .container {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 480px) {
            :root {
                --section-gap: 52px;
                --container-padding: 14px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .banner-stat .stat-num {
                font-size: 18px;
            }
            .match-time .time {
                font-size: 18px;
            }
            .section {
                padding: 40px 0;
            }
        }

/* roulang page: category2 */
:root {
        --color-bg: #0A0E12;
        --color-card: #11161C;
        --color-card-alt: #161D25;
        --color-primary: #00E5A0;
        --color-primary-dim: rgba(0, 229, 160, 0.15);
        --color-accent: #FF2D78;
        --color-accent-dim: rgba(255, 45, 120, 0.12);
        --color-purple: #7C3AFF;
        --color-purple-dim: rgba(124, 58, 255, 0.12);
        --color-text: #F2F5F7;
        --color-body: #B4BDC6;
        --color-muted: #6B7683;
        --color-border: #1E2630;
        --color-border-light: rgba(30, 38, 48, 0.6);
        --radius-card: 10px;
        --radius-btn: 6px;
        --radius-lg: 16px;
        --radius-sm: 4px;
        --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
        --shadow-primary: 0 4px 20px rgba(0, 229, 160, 0.25);
        --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
        --font-en: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
        --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
        --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
        --nav-height: 68px;
        --section-gap: 80px;
        --container-max: 1200px;
        --container-padding: 24px;
    }
    @media (max-width: 1024px) {
        :root {
            --section-gap: 64px;
            --container-padding: 18px;
        }
    }
    @media (max-width: 768px) {
        :root {
            --section-gap: 52px;
            --container-padding: 14px;
        }
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        background-color: var(--color-bg);
        color: var(--color-body);
        font-family: var(--font-cn);
        font-size: 16px;
        line-height: 1.85;
        margin: 0;
        padding: 0;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    a {
        color: var(--color-primary);
        text-decoration: none;
        transition: color var(--transition-fast);
    }
    a:hover,
    a:focus {
        color: #33ffb3;
        outline: none;
    }
    a:focus-visible {
        outline: 2px solid var(--color-primary);
        outline-offset: 2px;
        border-radius: 2px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button {
        cursor: pointer;
        font-family: var(--font-cn);
    }
    input,
    textarea,
    select {
        font-family: var(--font-cn);
    }
    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 var(--container-padding);
    }

    /* HEADER / NAV */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: var(--nav-height);
        z-index: 1000;
        background-color: rgba(10, 14, 18, 0.82);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(30, 38, 48, 0.5);
        transition: background-color var(--transition-base), border-color var(--transition-base);
    }
    .site-header.scrolled {
        background-color: rgba(10, 14, 18, 0.95);
        border-bottom-color: var(--color-border);
    }
    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
        gap: 20px;
    }
    .nav-left,
    .nav-right {
        display: flex;
        align-items: center;
        gap: 28px;
        flex: 1;
    }
    .nav-left {
        justify-content: flex-end;
    }
    .nav-right {
        justify-content: flex-start;
    }
    .nav-logo {
        flex-shrink: 0;
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 22px;
        font-weight: 800;
        letter-spacing: -0.02em;
        color: var(--color-text);
        white-space: nowrap;
    }
    .nav-logo .logo-icon {
        width: 34px;
        height: 34px;
        border-radius: 6px;
        background: linear-gradient(135deg, var(--color-primary) 0%, #00b882 60%, #009966 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    .nav-logo .logo-icon svg {
        width: 20px;
        height: 20px;
        fill: var(--color-bg);
    }
    .nav-logo .logo-text {
        font-size: 21px;
        font-weight: 800;
        letter-spacing: -0.02em;
    }
    .nav-link {
        position: relative;
        font-size: 14px;
        font-weight: 500;
        color: rgba(242, 245, 247, 0.85);
        padding: 4px 0;
        white-space: nowrap;
        transition: color var(--transition-fast);
    }
    .nav-link::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: -2px;
        width: 0;
        height: 2px;
        background: var(--color-primary);
        transition: width var(--transition-base);
        border-radius: 1px;
    }
    .nav-link:hover,
    .nav-link:focus {
        color: var(--color-primary);
    }
    .nav-link:hover::after,
    .nav-link:focus::after {
        width: 100%;
    }
    .nav-link.active {
        color: var(--color-primary);
    }
    .nav-link.active::after {
        width: 100%;
    }
    .hamburger {
        display: none;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 5px;
        width: 40px;
        height: 40px;
        background: transparent;
        border: 1px solid var(--color-border);
        border-radius: 6px;
        padding: 8px;
        transition: border-color var(--transition-fast), background-color var(--transition-fast);
    }
    .hamburger span {
        display: block;
        width: 20px;
        height: 2px;
        background-color: var(--color-text);
        border-radius: 1px;
        transition: transform var(--transition-base), opacity var(--transition-base);
    }
    .hamburger:hover {
        border-color: var(--color-primary);
        background-color: var(--color-primary-dim);
    }
    .hamburger[aria-expanded="true"] span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .hamburger[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }
    .hamburger[aria-expanded="true"] span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* MOBILE NAV DRAWER */
    .mobile-nav {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background-color: rgba(10, 14, 18, 0.98);
        border-bottom: 1px solid var(--color-border);
        padding: 20px 24px 28px;
        z-index: 999;
        flex-direction: column;
        gap: 4px;
        max-height: calc(100vh - var(--nav-height));
        overflow-y: auto;
    }
    .mobile-nav.open {
        display: flex;
    }
    .mobile-nav .nav-link {
        font-size: 16px;
        padding: 12px 0;
        border-bottom: 1px solid var(--color-border-light);
    }
    .mobile-nav .nav-link.active {
        color: var(--color-primary);
    }

    /* BREADCRUMB */
    .breadcrumb-bar {
        padding-top: calc(var(--nav-height) + 28px);
        padding-bottom: 8px;
    }
    .breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 13px;
        color: var(--color-muted);
    }
    .breadcrumb a {
        color: var(--color-muted);
        transition: color var(--transition-fast);
    }
    .breadcrumb a:hover {
        color: var(--color-primary);
    }
    .breadcrumb .separator {
        color: var(--color-border);
    }
    .breadcrumb .current {
        color: var(--color-primary);
        font-weight: 500;
    }

    /* PAGE HERO */
    .page-hero {
        padding: 36px 0 52px;
    }
    .page-hero .hero-grid {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 40px;
        flex-wrap: wrap;
    }
    .page-hero .hero-text {
        flex: 1 1 580px;
        min-width: 0;
    }
    .page-hero .hero-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--color-primary);
        margin-bottom: 14px;
    }
    .page-hero .hero-tag::before {
        content: '';
        width: 20px;
        height: 1px;
        background: var(--color-primary);
        display: inline-block;
    }
    .page-hero h1 {
        font-size: clamp(30px, 4vw, 44px);
        font-weight: 800;
        color: var(--color-text);
        line-height: 1.2;
        letter-spacing: -0.02em;
        margin-bottom: 18px;
    }
    .page-hero .hero-desc {
        font-size: 16px;
        color: var(--color-body);
        max-width: 640px;
        line-height: 1.9;
        margin-bottom: 0;
    }
    .page-hero .hero-badge-wrap {
        flex-shrink: 0;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .rank-badge {
        display: flex;
        align-items: center;
        gap: 8px;
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: 8px;
        padding: 10px 16px;
        font-size: 13px;
        color: var(--color-body);
        white-space: nowrap;
    }
    .rank-badge .dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--color-primary);
        animation: pulse-dot 2s ease-in-out infinite;
    }
    @keyframes pulse-dot {
        0%, 100% { opacity: 1; transform: scale(1); }
        50% { opacity: 0.5; transform: scale(0.8); }
    }

    /* STATS BAR */
    .stats-bar-section {
        padding: 0 0 48px;
    }
    .stats-bar {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
    .stat-cell {
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 24px;
        transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    }
    .stat-cell:hover {
        border-color: rgba(0, 229, 160, 0.4);
        transform: translateY(-2px);
        box-shadow: var(--shadow-hover);
    }
    .stat-cell .stat-number {
        font-size: 36px;
        font-weight: 800;
        color: var(--color-primary);
        line-height: 1.1;
        font-family: var(--font-en);
        letter-spacing: -0.01em;
        margin-bottom: 6px;
    }
    .stat-cell .stat-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--color-text);
        margin-bottom: 4px;
    }
    .stat-cell .stat-desc {
        font-size: 12px;
        color: var(--color-muted);
        line-height: 1.6;
    }

    /* RANKING LIST SECTION */
    .ranking-section {
        padding: 0 0 64px;
    }
    .ranking-section .section-head {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
        margin-bottom: 28px;
    }
    .ranking-section .section-head h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--color-text);
        letter-spacing: -0.01em;
        margin: 0;
    }
    .ranking-section .section-head .update-info {
        font-size: 13px;
        color: var(--color-muted);
    }
    .ranking-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .rank-row {
        display: flex;
        align-items: center;
        gap: 16px;
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 18px 22px;
        transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    }
    .rank-row:hover {
        border-color: rgba(0, 229, 160, 0.35);
        transform: translateY(-1px);
        box-shadow: var(--shadow-hover);
    }
    .rank-row.top-1 {
        border-left: 4px solid var(--color-primary);
    }
    .rank-row.top-2 {
        border-left: 4px solid #FFD700;
    }
    .rank-row.top-3 {
        border-left: 4px solid var(--color-accent);
    }
    .rank-number {
        width: 44px;
        height: 44px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: 800;
        color: var(--color-text);
        background: var(--color-card-alt);
        border-radius: 6px;
        font-family: var(--font-en);
    }
    .rank-row.top-1 .rank-number {
        color: var(--color-primary);
        background: var(--color-primary-dim);
    }
    .rank-row.top-2 .rank-number {
        color: #FFD700;
        background: rgba(255, 215, 0, 0.1);
    }
    .rank-row.top-3 .rank-number {
        color: var(--color-accent);
        background: var(--color-accent-dim);
    }
    .rank-team-info {
        flex: 1 1 180px;
        min-width: 0;
    }
    .rank-team-info .team-name {
        font-size: 17px;
        font-weight: 700;
        color: var(--color-text);
        margin-bottom: 2px;
    }
    .rank-team-info .team-meta {
        font-size: 12px;
        color: var(--color-muted);
    }
    .rank-bar-wrap {
        flex: 2 1 280px;
        min-width: 0;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .rank-bar-track {
        flex: 1;
        height: 8px;
        background: var(--color-card-alt);
        border-radius: 4px;
        overflow: hidden;
    }
    .rank-bar-fill {
        height: 100%;
        background: linear-gradient(90deg, var(--color-primary) 0%, #00b882 100%);
        border-radius: 4px;
        transition: width var(--transition-base);
    }
    .rank-bar-fill.accent {
        background: linear-gradient(90deg, var(--color-accent) 0%, #ff6b9d 100%);
    }
    .rank-bar-fill.purple {
        background: linear-gradient(90deg, var(--color-purple) 0%, #9b6bff 100%);
    }
    .rank-row .rank-winrate {
        flex-shrink: 0;
        font-size: 15px;
        font-weight: 700;
        color: var(--color-primary);
        font-family: var(--font-en);
        min-width: 52px;
        text-align: right;
    }
    .rank-row .rank-score {
        flex-shrink: 0;
        font-size: 14px;
        color: var(--color-body);
        font-family: var(--font-en);
        min-width: 44px;
        text-align: right;
    }

    /* TREND ANALYSIS */
    .trend-section {
        padding: 0 0 64px;
    }
    .trend-section .trend-grid {
        display: flex;
        gap: 32px;
        align-items: flex-start;
        flex-wrap: wrap;
    }
    .trend-section .trend-img-wrap {
        flex: 0 0 420px;
        max-width: 100%;
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--color-border);
        position: relative;
    }
    .trend-section .trend-img-wrap img {
        width: 100%;
        height: auto;
        aspect-ratio: 4/3;
        object-fit: cover;
        transition: transform var(--transition-base);
    }
    .trend-section .trend-img-wrap:hover img {
        transform: scale(1.03);
    }
    .trend-section .trend-content {
        flex: 1 1 400px;
        min-width: 0;
    }
    .trend-section .trend-content h2 {
        font-size: 26px;
        font-weight: 700;
        color: var(--color-text);
        letter-spacing: -0.01em;
        margin-bottom: 16px;
    }
    .trend-section .trend-content p {
        font-size: 15px;
        color: var(--color-body);
        line-height: 1.9;
        margin-bottom: 16px;
    }
    .trend-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 12px;
    }
    .trend-tag {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        font-size: 12px;
        font-weight: 500;
        background: var(--color-card-alt);
        border: 1px solid var(--color-border);
        border-radius: 4px;
        padding: 4px 12px;
        color: var(--color-body);
        transition: border-color var(--transition-fast), color var(--transition-fast);
    }
    .trend-tag:hover {
        border-color: var(--color-primary);
        color: var(--color-primary);
    }

    /* RULES SECTION */
    .rules-section {
        padding: 0 0 64px;
    }
    .rules-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .rule-card {
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card);
        padding: 26px 24px;
        transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    }
    .rule-card:hover {
        border-color: rgba(0, 229, 160, 0.35);
        transform: translateY(-2px);
        box-shadow: var(--shadow-hover);
    }
    .rule-card .rule-icon {
        width: 40px;
        height: 40px;
        border-radius: 6px;
        background: var(--color-primary-dim);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 14px;
        font-size: 18px;
        font-weight: 800;
        color: var(--color-primary);
        font-family: var(--font-en);
    }
    .rule-card h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--color-text);
        margin-bottom: 10px;
    }
    .rule-card p {
        font-size: 14px;
        color: var(--color-body);
        line-height: 1.8;
        margin: 0;
    }

    /* FAQ */
    .faq-section {
        padding: 0 0 64px;
    }
    .faq-section .section-title {
        font-size: 28px;
        font-weight: 700;
        color: var(--color-text);
        letter-spacing: -0.01em;
        margin-bottom: 24px;
    }
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .accordion {
        margin: 0;
    }
    .accordion-item {
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-card) !important;
        margin-bottom: 0 !important;
        overflow: hidden;
        transition: border-color var(--transition-fast);
    }
    .accordion-item:hover {
        border-color: rgba(0, 229, 160, 0.3);
    }
    .accordion-title {
        font-size: 17px !important;
        font-weight: 600 !important;
        color: var(--color-text) !important;
        background: transparent !important;
        border: none !important;
        padding: 18px 24px !important;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        transition: color var(--transition-fast), background-color var(--transition-fast);
    }
    .accordion-title:hover,
    .accordion-title:focus {
        color: var(--color-primary) !important;
        background: var(--color-primary-dim) !important;
    }
    .accordion-title::after {
        content: '+';
        font-size: 22px;
        font-weight: 400;
        color: var(--color-primary);
        transition: transform var(--transition-base);
        flex-shrink: 0;
        line-height: 1;
    }
    .accordion-item.is-active .accordion-title::after {
        content: '−';
        transform: rotate(0deg);
    }
    .accordion-content {
        background: transparent !important;
        border: none !important;
        padding: 0 24px 20px !important;
        color: var(--color-body) !important;
        font-size: 15px;
        line-height: 1.85;
    }
    .accordion-content p {
        margin: 0;
        color: var(--color-body);
        font-size: 15px;
        line-height: 1.85;
    }

    /* CTA */
    .cta-section {
        padding: 0 0 80px;
    }
    .cta-box {
        background: var(--color-card);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        padding: 52px 32px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-box::before {
        content: '';
        position: absolute;
        top: -60%;
        left: 50%;
        transform: translateX(-50%);
        width: 600px;
        height: 600px;
        background: radial-gradient(circle, rgba(0, 229, 160, 0.08) 0%, transparent 70%);
        pointer-events: none;
    }
    .cta-box h2 {
        font-size: 28px;
        font-weight: 800;
        color: var(--color-text);
        letter-spacing: -0.01em;
        margin-bottom: 12px;
        position: relative;
        z-index: 1;
    }
    .cta-box p {
        font-size: 15px;
        color: var(--color-body);
        max-width: 560px;
        margin: 0 auto 28px;
        line-height: 1.9;
        position: relative;
        z-index: 1;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 15px;
        font-weight: 600;
        border-radius: var(--radius-btn);
        padding: 13px 28px;
        transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        border: 2px solid transparent;
        position: relative;
        z-index: 1;
    }
    .btn-primary {
        background-color: var(--color-primary);
        color: var(--color-bg);
        box-shadow: var(--shadow-primary);
    }
    .btn-primary:hover {
        background-color: #00f0ac;
        border-color: #00f0ac;
        color: var(--color-bg);
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(0, 229, 160, 0.35);
    }
    .btn-primary:focus-visible {
        outline: 2px solid var(--color-primary);
        outline-offset: 3px;
    }
    .btn-secondary {
        background: transparent;
        border-color: var(--color-primary);
        color: var(--color-primary);
    }
    .btn-secondary:hover {
        background: var(--color-primary-dim);
        border-color: var(--color-primary);
        color: var(--color-primary);
        transform: translateY(-2px);
    }

    /* FOOTER */
    .site-footer {
        background-color: #080c10;
        border-top: 1px solid var(--color-border);
        padding: 56px 0 32px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.3fr;
        gap: 36px;
        margin-bottom: 40px;
    }
    .footer-brand h3 {
        font-size: 22px;
        font-weight: 800;
        color: var(--color-text);
        margin-bottom: 12px;
        letter-spacing: -0.01em;
    }
    .footer-brand p {
        font-size: 14px;
        color: var(--color-muted);
        line-height: 1.8;
        max-width: 280px;
        margin: 0;
    }
    .footer-col h4 {
        font-size: 14px;
        font-weight: 700;
        color: var(--color-text);
        margin-bottom: 14px;
        letter-spacing: 0.02em;
    }
    .footer-col ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-col ul li {
        margin-bottom: 8px;
    }
    .footer-col ul li a {
        font-size: 13px;
        color: var(--color-muted);
        transition: color var(--transition-fast);
    }
    .footer-col ul li a:hover {
        color: var(--color-primary);
    }
    .footer-bottom {
        border-top: 1px solid var(--color-border-light);
        padding-top: 24px;
        display: flex;
        flex-direction: column;
        gap: 8px;
        font-size: 12px;
        color: var(--color-muted);
    }
    .footer-bottom p {
        margin: 0;
        font-size: 12px;
        color: var(--color-muted);
    }
    .footer-links-row {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
    }
    .footer-links-row a {
        font-size: 12px;
        color: var(--color-muted);
        transition: color var(--transition-fast);
    }
    .footer-links-row a:hover {
        color: var(--color-primary);
    }

    /* RESPONSIVE */
    @media (max-width: 1024px) {
        .nav-left, .nav-right {
            gap: 18px;
        }
        .nav-link {
            font-size: 13px;
        }
        .stats-bar {
            grid-template-columns: repeat(2, 1fr);
        }
        .rank-row {
            flex-wrap: wrap;
            gap: 12px;
            padding: 16px 18px;
        }
        .rank-bar-wrap {
            flex-basis: 100%;
            order: 3;
        }
        .trend-section .trend-img-wrap {
            flex-basis: 100%;
        }
        .rules-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
    }
    @media (max-width: 768px) {
        .nav-left, .nav-right {
            display: none;
        }
        .hamburger {
            display: flex;
        }
        .site-header .container {
            justify-content: space-between;
        }
        .nav-logo {
            order: 2;
            flex-shrink: 0;
        }
        .hamburger {
            order: 1;
        }
        .page-hero .hero-grid {
            flex-direction: column;
            gap: 20px;
        }
        .stats-bar {
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .stat-cell {
            padding: 18px;
        }
        .stat-cell .stat-number {
            font-size: 28px;
        }
        .ranking-section .section-head {
            flex-direction: column;
            align-items: flex-start;
        }
        .rank-row {
            padding: 14px 16px;
        }
        .rank-number {
            width: 36px;
            height: 36px;
            font-size: 15px;
        }
        .rank-team-info .team-name {
            font-size: 15px;
        }
        .rank-row .rank-winrate {
            font-size: 13px;
            min-width: 42px;
        }
        .rank-row .rank-score {
            font-size: 12px;
            min-width: 36px;
        }
        .trend-section .trend-grid {
            flex-direction: column;
        }
        .trend-section .trend-img-wrap {
            flex-basis: auto;
        }
        .rules-grid {
            grid-template-columns: 1fr;
        }
        .faq-section .section-title {
            font-size: 24px;
        }
        .cta-box {
            padding: 40px 20px;
        }
        .cta-box h2 {
            font-size: 24px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .mobile-nav {
            padding: 12px 18px 20px;
        }
        .page-hero h1 {
            font-size: 28px;
        }
        .page-hero .hero-desc {
            font-size: 15px;
        }
    }
    @media (max-width: 480px) {
        .stats-bar {
            grid-template-columns: 1fr;
        }
        .rank-row {
            flex-direction: column;
            align-items: flex-start;
            gap: 10px;
        }
        .rank-bar-wrap {
            width: 100%;
        }
        .rank-row .rank-winrate,
        .rank-row .rank-score {
            text-align: left;
        }
        .stat-cell .stat-number {
            font-size: 26px;
        }
        .section-title {
            font-size: 24px;
        }
    }

/* roulang page: category3 */
:root {
            --color-bg: #0A0E12;
            --color-card: #11161C;
            --color-card-alt: #161D25;
            --color-primary: #00E5A0;
            --color-primary-dim: rgba(0, 229, 160, 0.15);
            --color-primary-dimmer: rgba(0, 229, 160, 0.06);
            --color-accent: #FF2D78;
            --color-accent-dim: rgba(255, 45, 120, 0.12);
            --color-purple: #7C3AFF;
            --color-purple-dim: rgba(124, 58, 255, 0.12);
            --color-text: #F2F5F7;
            --color-body: #B4BDC6;
            --color-muted: #6B7683;
            --color-border: #1E2630;
            --color-border-light: rgba(30, 38, 48, 0.6);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-lg: 16px;
            --radius-sm: 4px;
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-primary: 0 4px 20px rgba(0, 229, 160, 0.25);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --font-en: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 68px;
            --section-gap: 80px;
            --container-max: 1200px;
            --container-padding: 24px;
        }

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

        body {
            background-color: var(--color-bg);
            color: var(--color-body);
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover,
        a:focus {
            color: #33ffb3;
            outline: none;
        }

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

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

        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }

        input,
        textarea,
        select {
            font-family: var(--font-cn);
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 14px;
            position: relative;
        }

        .section-tag::before {
            content: '';
            width: 20px;
            height: 1px;
            background: var(--color-primary);
            display: inline-block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-body);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            z-index: 1000;
            background-color: rgba(10, 14, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(30, 38, 48, 0.5);
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background-color: rgba(10, 14, 18, 0.95);
            border-bottom-color: var(--color-border);
        }

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

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }

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

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

        .nav-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            white-space: nowrap;
            padding: 4px 0;
        }

        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #00b882 60%, #009966 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon svg {
            width: 18px;
            height: 18px;
            fill: #0A0E12;
        }

        .nav-logo .logo-text {
            font-weight: 800;
            font-size: 21px;
            letter-spacing: -0.02em;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: rgba(242, 245, 247, 0.85);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            transition: width var(--transition-base);
            border-radius: 1px;
        }

        .nav-link:hover::after,
        .nav-link:focus::after {
            width: 100%;
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--color-primary);
        }

        .nav-link.active {
            color: var(--color-primary);
        }

        .nav-link.active::after {
            width: 100%;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            flex-direction: column;
            gap: 5px;
            z-index: 1001;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

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

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

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

        /* ============ BREADCRUMB ============ */
        .breadcrumb-section {
            padding-top: calc(var(--nav-height) + 32px);
            padding-bottom: 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            list-style: none;
            margin: 0;
            padding: 8px 0;
            flex-wrap: wrap;
        }

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

        .breadcrumb li+li::before {
            content: '/';
            color: var(--color-border);
            font-size: 13px;
        }

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

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

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

        /* ============ PAGE BANNER ============ */
        .page-banner {
            position: relative;
            padding: 40px 0 48px;
            background: linear-gradient(180deg, var(--color-card) 0%, var(--color-bg) 100%);
            border-bottom: 1px solid var(--color-border-light);
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, var(--color-primary-dim) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -140px;
            left: 10%;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, var(--color-accent-dim) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .page-banner .container {
            position: relative;
            z-index: 1;
        }

        .page-banner h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .page-banner .banner-desc {
            font-size: 16px;
            color: var(--color-body);
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 20px;
        }

        .page-banner .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 13px;
            color: var(--color-muted);
        }

        .page-banner .banner-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .page-banner .banner-meta .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-primary);
            display: inline-block;
        }

        /* ============ DATA CARDS GRID (2x2) ============ */
        .data-cards-section {
            padding: var(--section-gap) 0;
        }

        .data-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 28px 24px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            position: relative;
            overflow: hidden;
        }

        .data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

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

        .data-card:hover::before {
            opacity: 1;
        }

        .data-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .data-card .card-icon.icon-green {
            background: var(--color-primary-dim);
            color: var(--color-primary);
        }

        .data-card .card-icon.icon-pink {
            background: var(--color-accent-dim);
            color: var(--color-accent);
        }

        .data-card .card-icon.icon-purple {
            background: var(--color-purple-dim);
            color: var(--color-purple);
        }

        .data-card .card-icon.icon-cyan {
            background: rgba(0, 229, 160, 0.1);
            color: #33ffb3;
        }

        .data-card .card-icon svg {
            width: 20px;
            height: 20px;
            fill: currentColor;
        }

        .data-card .card-label {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--color-muted);
            margin-bottom: 6px;
        }

        .data-card .card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .data-card .card-value {
            font-size: 40px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            margin: 6px 0 10px;
            line-height: 1.1;
        }

        .data-card .card-value .unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-body);
            letter-spacing: 0;
            margin-left: 4px;
        }

        .data-card .card-desc {
            font-size: 14px;
            color: var(--color-body);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .data-card .card-trend {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            margin-top: auto;
        }

        .data-card .card-trend.up {
            color: var(--color-primary);
        }

        .data-card .card-trend.flat {
            color: var(--color-muted);
        }

        /* ============ TIMELINE ============ */
        .timeline-section {
            padding: var(--section-gap) 0;
            background: var(--color-card);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .timeline-track {
            display: flex;
            gap: 0;
            position: relative;
            padding-top: 36px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border) transparent;
        }

        .timeline-track::-webkit-scrollbar {
            height: 4px;
        }

        .timeline-track::-webkit-scrollbar-track {
            background: transparent;
        }

        .timeline-track::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 2px;
        }

        .timeline-track::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-border) 30%, var(--color-border) 70%, var(--color-accent) 100%);
            z-index: 0;
        }

        .timeline-item {
            flex: 1;
            min-width: 200px;
            padding: 0 12px;
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .timeline-item:first-child {
            padding-left: 0;
        }

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

        .timeline-node {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--color-primary);
            border: 3px solid var(--color-card);
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
            box-shadow: 0 0 0 2px var(--color-primary-dim);
            transition: box-shadow var(--transition-fast);
        }

        .timeline-item:hover .timeline-node {
            box-shadow: 0 0 0 4px var(--color-primary-dim);
        }

        .timeline-item .time-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
            margin-bottom: 6px;
        }

        .timeline-item .time-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .timeline-item .time-desc {
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .timeline-item .time-data {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-body);
        }

        /* ============ FEATURES / CAPABILITIES ============ */
        .features-section {
            padding: var(--section-gap) 0;
        }

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

        .feature-row.reversed {
            direction: rtl;
        }

        .feature-row.reversed .feature-content {
            direction: ltr;
        }

        .feature-content {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            direction: ltr;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .feature-content:hover {
            border-color: var(--color-border-light);
            box-shadow: var(--shadow-hover);
        }

        .feature-content .feature-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .feature-content .feature-desc {
            font-size: 15px;
            color: var(--color-body);
            line-height: 1.8;
            margin-bottom: 14px;
        }

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

        .feature-list li {
            font-size: 14px;
            color: var(--color-body);
            padding: 6px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .feature-list li::before {
            content: '•';
            color: var(--color-primary);
            font-weight: 700;
            flex-shrink: 0;
        }

        .feature-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
        }

        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 240px;
            transition: transform var(--transition-base);
        }

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

        /* ============ SCENARIOS ============ */
        .scenarios-section {
            padding: var(--section-gap) 0;
            background: var(--color-card);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

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

        .scenario-card {
            background: var(--color-card-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .scenario-card .scenario-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 600;
            background: var(--color-primary-dim);
            color: var(--color-primary);
            margin-bottom: 12px;
        }

        .scenario-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

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

        /* ============ PROCESS / STEPS ============ */
        .process-section {
            padding: var(--section-gap) 0;
        }

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

        .process-step {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            position: relative;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .process-step:hover {
            border-color: var(--color-border-light);
            box-shadow: var(--shadow-hover);
        }

        .process-step .step-number {
            font-size: 48px;
            font-weight: 800;
            color: var(--color-primary-dim);
            line-height: 1;
            margin-bottom: 12px;
            font-family: var(--font-en);
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

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

        /* ============ FAQ ============ */
        .faq-section {
            padding: var(--section-gap) 0;
            background: var(--color-card);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .accordion {
            border: none;
            background: transparent;
        }

        .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            background: var(--color-card-alt);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

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

        .accordion-item.is-active {
            border-color: var(--color-primary);
        }

        .accordion-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-text);
            padding: 18px 24px;
            background: transparent;
            border: none;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

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

        .accordion-title::before {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--color-primary);
            margin-right: 12px;
            transition: transform var(--transition-fast);
        }

        .accordion-item.is-active .accordion-title::before {
            content: '−';
            transform: rotate(0deg);
        }

        .accordion-content {
            padding: 0 24px 20px 24px;
            background: transparent;
            border: none;
            font-size: 15px;
            color: var(--color-body);
            line-height: 1.8;
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: var(--section-gap) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, var(--color-primary-dim) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .cta-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-desc {
            font-size: 15px;
            color: var(--color-body);
            max-width: 500px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .cta-btn {
            display: inline-block;
            padding: 16px 36px;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            background: var(--color-primary);
            color: #0A0E12;
            border: none;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            text-decoration: none;
            box-shadow: var(--shadow-primary);
        }

        .cta-btn:hover,
        .cta-btn:focus {
            background: #33ffb3;
            color: #0A0E12;
            box-shadow: 0 6px 28px rgba(0, 229, 160, 0.35);
            transform: translateY(-1px);
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 10px;
        }

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

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

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

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

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

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

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

        .footer-bottom p {
            font-size: 13px;
            color: var(--color-muted);
            margin: 0;
        }

        .footer-links-row {
            display: flex;
            gap: 16px;
        }

        .footer-links-row a {
            font-size: 13px;
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }

        .footer-links-row a:hover {
            color: var(--color-primary);
        }

        /* ============ MOBILE MENU OVERLAY ============ */
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 18, 0.98);
            z-index: 999;
            padding: 24px;
            overflow-y: auto;
        }

        .mobile-menu-overlay.open {
            display: block;
        }

        .mobile-menu-overlay .mobile-nav-link {
            display: block;
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: color var(--transition-fast);
        }

        .mobile-menu-overlay .mobile-nav-link:hover {
            color: var(--color-primary);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 64px;
                --container-padding: 18px;
            }

            .nav-left,
            .nav-right {
                gap: 18px;
            }

            .nav-link {
                font-size: 14px;
            }

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

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

        @media (max-width: 768px) {
            :root {
                --section-gap: 56px;
                --container-padding: 16px;
                --nav-height: 60px;
            }

            .hamburger {
                display: flex;
            }

            .nav-left,
            .nav-right {
                display: none;
            }

            .site-header .container {
                justify-content: space-between;
            }

            .nav-logo {
                font-size: 18px;
                gap: 8px;
            }

            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
            }

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

            .section-title {
                font-size: 24px;
            }

            .data-card .card-value {
                font-size: 32px;
            }

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

            .feature-row.reversed {
                direction: ltr;
            }

            .feature-image img {
                min-height: 180px;
            }

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

            .process-steps {
                grid-template-columns: 1fr;
            }

            .timeline-item {
                min-width: 160px;
                padding: 0 8px;
            }

            .timeline-item:first-child {
                padding-left: 8px;
            }

            .timeline-item:last-child {
                padding-right: 8px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --section-gap: 44px;
                --container-padding: 14px;
            }

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

            .data-card {
                padding: 20px 18px;
            }

            .data-card .card-value {
                font-size: 28px;
            }

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

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

/* roulang page: category4 */
:root {
            --color-bg: #0A0E12;
            --color-card: #11161C;
            --color-card-alt: #161D25;
            --color-primary: #00E5A0;
            --color-primary-dim: rgba(0, 229, 160, 0.15);
            --color-accent: #FF2D78;
            --color-accent-dim: rgba(255, 45, 120, 0.12);
            --color-purple: #7C3AFF;
            --color-purple-dim: rgba(124, 58, 255, 0.12);
            --color-text: #F2F5F7;
            --color-body: #B4BDC6;
            --color-muted: #6B7683;
            --color-border: #1E2630;
            --color-border-light: rgba(30, 38, 48, 0.6);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-lg: 16px;
            --radius-sm: 4px;
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-primary: 0 4px 20px rgba(0, 229, 160, 0.25);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --font-en: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 68px;
            --section-gap: 90px;
            --container-max: 1200px;
            --container-padding: 24px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            background-color: var(--color-bg);
            color: var(--color-body);
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover,
        a:focus {
            color: #33ffb3;
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }
        input,
        textarea,
        select {
            font-family: var(--font-cn);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--container-padding);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 14px;
            position: relative;
        }
        .section-tag::before {
            content: '';
            width: 20px;
            height: 1px;
            background: var(--color-primary);
            display: inline-block;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-body);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            z-index: 1000;
            background-color: rgba(10, 14, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(30, 38, 48, 0.5);
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background-color: rgba(10, 14, 18, 0.95);
            border-bottom-color: var(--color-border);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 26px;
            flex: 1;
        }
        .nav-left {
            justify-content: flex-end;
        }
        .nav-right {
            justify-content: flex-start;
        }
        .nav-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            white-space: nowrap;
        }
        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #00b882 60%, #009966 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(0, 229, 160, 0.3);
        }
        .nav-logo .logo-icon svg {
            width: 18px;
            height: 18px;
            fill: #0A0E12;
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            padding: 4px 0;
            transition: color var(--transition-fast);
            letter-spacing: 0.03em;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            transition: width var(--transition-base);
        }
        .nav-link:hover,
        .nav-link:focus {
            color: var(--color-primary);
        }
        .nav-link:hover::after,
        .nav-link:focus::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--color-primary);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;
            z-index: 1001;
        }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .hamburger[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .hamburger[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            padding-top: calc(var(--nav-height) + 28px);
            padding-bottom: 10px;
            border-bottom: 1px solid var(--color-border-light);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-nav .separator {
            color: var(--color-muted);
            font-size: 11px;
        }
        .breadcrumb-nav .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        /* ============ CATEGORY HERO ============ */
        .cat-hero {
            padding: 50px 0 40px;
        }
        .cat-hero-inner {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }
        .cat-hero-left h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-text);
            margin: 0 0 14px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .cat-hero-left .cat-desc {
            font-size: 16px;
            color: var(--color-body);
            max-width: 600px;
            line-height: 1.85;
            margin: 0;
        }
        .cat-hero-right {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero-stat-chip {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            text-align: center;
            min-width: 100px;
        }
        .hero-stat-chip .chip-num {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-primary);
            font-family: var(--font-en);
            line-height: 1.2;
        }
        .hero-stat-chip .chip-label {
            font-size: 12px;
            color: var(--color-muted);
            margin-top: 2px;
        }

        /* ============ FEATURED LIVE CARD ============ */
        .featured-section {
            padding: 20px 0 50px;
        }
        .featured-card {
            position: relative;
            display: grid;
            grid-template-columns: 1.25fr 1fr;
            gap: 0;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .featured-card:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-hover);
        }
        .featured-image {
            position: relative;
            min-height: 360px;
            overflow: hidden;
        }
        .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .featured-card:hover .featured-image img {
            transform: scale(1.05);
        }
        .featured-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,14,18,0.1) 0%, rgba(10,14,18,0.7) 100%);
            pointer-events: none;
        }
        .live-badge {
            position: absolute;
            top: 18px;
            left: 18px;
            z-index: 2;
            background: var(--color-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 2px 12px rgba(255, 45, 120, 0.4);
        }
        .live-badge::before {
            content: '';
            width: 8px;
            height: 8px;
            background: #fff;
            border-radius: 50%;
            animation: pulse-dot 1.2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }
        .featured-content {
            padding: 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-tag-row {
            display: flex;
            gap: 8px;
            margin-bottom: 14px;
            flex-wrap: wrap;
        }
        .featured-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            background: var(--color-primary-dim);
            color: var(--color-primary);
            letter-spacing: 0.05em;
        }
        .featured-tag.accent {
            background: var(--color-accent-dim);
            color: var(--color-accent);
        }
        .featured-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 10px;
            line-height: 1.35;
        }
        .featured-meta {
            display: flex;
            gap: 20px;
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .featured-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .featured-meta i {
            color: var(--color-primary);
            font-size: 12px;
        }
        .featured-content p {
            font-size: 15px;
            color: var(--color-body);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .featured-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ============ BUTTONS ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: all var(--transition-base);
            letter-spacing: 0.03em;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #0A0E12;
            box-shadow: var(--shadow-primary);
        }
        .btn-primary:hover {
            background: #33ffb3;
            color: #0A0E12;
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(0, 229, 160, 0.4);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary-dim);
            border-color: var(--color-primary);
            color: var(--color-primary);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: #ff4d8e;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(255, 45, 120, 0.4);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
            border-radius: 8px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        /* ============ LIVE LIST + TAG CLOUD ============ */
        .live-list-section {
            padding: 50px 0;
        }
        .live-list-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 32px;
            align-items: start;
        }
        .live-list-main {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .live-list-item {
            display: flex;
            gap: 18px;
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            transition: all var(--transition-base);
            cursor: pointer;
            align-items: center;
        }
        .live-list-item:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .live-thumb {
            width: 110px;
            height: 70px;
            border-radius: 6px;
            overflow: hidden;
            flex-shrink: 0;
            position: relative;
        }
        .live-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .live-thumb .mini-status {
            position: absolute;
            bottom: 4px;
            right: 4px;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 3px;
            letter-spacing: 0.5px;
        }
        .mini-status.ongoing {
            background: var(--color-accent);
            color: #fff;
        }
        .mini-status.upcoming {
            background: var(--color-primary);
            color: #0A0E12;
        }
        .mini-status.ended {
            background: var(--color-muted);
            color: #fff;
        }
        .live-info {
            flex: 1;
            min-width: 0;
        }
        .live-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .live-info .live-sub {
            font-size: 13px;
            color: var(--color-muted);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .live-info .live-sub span {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .live-actions {
            flex-shrink: 0;
        }

        /* Tag Cloud Sidebar */
        .tag-cloud-sidebar {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            position: sticky;
            top: calc(var(--nav-height) + 24px);
        }
        .tag-cloud-sidebar .tag-cloud-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tag-cloud-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud-link {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-body);
            background: var(--color-card-alt);
            border: 1px solid var(--color-border);
            padding: 6px 14px;
            border-radius: 20px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .tag-cloud-link:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-dim);
        }
        .tag-cloud-link.hot {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .tag-cloud-link.primary {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .tag-cloud-sidebar .tag-stats {
            display: flex;
            gap: 8px;
            margin-top: 16px;
            flex-wrap: wrap;
        }
        .tag-stats .stat-mini {
            font-size: 12px;
            color: var(--color-muted);
            background: var(--color-card-alt);
            padding: 8px 14px;
            border-radius: 6px;
            flex: 1;
            text-align: center;
            min-width: 70px;
        }
        .tag-stats .stat-mini strong {
            display: block;
            font-size: 16px;
            color: var(--color-text);
            font-family: var(--font-en);
            font-weight: 700;
        }

        /* ============ FEATURES SECTION ============ */
        .features-section {
            padding: 60px 0;
            background: var(--color-card);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .feature-item {
            background: var(--color-card-alt);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            transition: all var(--transition-base);
            text-align: left;
        }
        .feature-item:hover {
            border-color: var(--color-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-item .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 18px;
        }
        .feature-item .feature-icon.green {
            background: var(--color-primary-dim);
            color: var(--color-primary);
        }
        .feature-item .feature-icon.pink {
            background: var(--color-accent-dim);
            color: var(--color-accent);
        }
        .feature-item .feature-icon.purple {
            background: var(--color-purple-dim);
            color: var(--color-purple);
        }
        .feature-item .feature-icon.cyan {
            background: rgba(0, 200, 255, 0.12);
            color: #00C8FF;
        }
        .feature-item h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 8px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--color-body);
            line-height: 1.75;
            margin: 0;
        }

        /* ============ DATA SECTION ============ */
        .data-section {
            padding: 60px 0;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .data-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .data-card:hover {
            border-color: var(--color-primary);
            transform: translateY(-3px);
        }
        .data-card .data-num {
            font-size: 48px;
            font-weight: 800;
            color: var(--color-primary);
            font-family: var(--font-en);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .data-card .data-num.accent {
            color: var(--color-accent);
        }
        .data-card .data-num.purple {
            color: var(--color-purple);
        }
        .data-card .data-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-top: 8px;
        }
        .data-card .data-sub {
            font-size: 12px;
            color: var(--color-muted);
            margin-top: 4px;
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: 60px 0;
            background: var(--color-card-alt);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-item.active {
            border-color: var(--color-primary);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            cursor: pointer;
            transition: background-color var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(0, 229, 160, 0.04);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--color-primary);
            transition: transform var(--transition-fast);
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--color-primary-dim);
            border-color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 200ms ease-in-out, padding 200ms ease-in-out;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--color-body);
            line-height: 1.8;
            margin: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .cta-inner h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 14px;
        }
        .cta-inner p {
            font-size: 15px;
            color: var(--color-muted);
            margin-bottom: 28px;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #0A0E12;
            border-top: 1px solid var(--color-border);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin: 0 0 8px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
        }
        .footer-bottom p {
            font-size: 13px;
            color: var(--color-muted);
            margin: 0;
        }
        .footer-links-row {
            display: flex;
            gap: 16px;
        }
        .footer-links-row a {
            font-size: 13px;
            color: var(--color-muted);
        }
        .footer-links-row a:hover {
            color: var(--color-primary);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 70px;
            }
            .nav-left,
            .nav-right {
                gap: 18px;
            }
            .nav-link {
                font-size: 13px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .live-list-grid {
                grid-template-columns: 1fr;
            }
            .tag-cloud-sidebar {
                position: static;
                margin-top: 20px;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-image {
                min-height: 240px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 56px;
                --container-padding: 18px;
                --nav-height: 60px;
            }
            .site-header .container {
                gap: 12px;
            }
            .hamburger {
                display: flex;
            }
            .nav-left,
            .nav-right {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(10, 14, 18, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 24px;
                border-bottom: 1px solid var(--color-border);
                display: none;
                z-index: 999;
            }
            .nav-left.open,
            .nav-right.open {
                display: flex;
            }
            .nav-left {
                top: var(--nav-height);
            }
            .nav-right {
                top: calc(var(--nav-height) + 160px);
            }
            .nav-link {
                font-size: 15px;
                padding: 14px 0;
                width: 100%;
                border-bottom: 1px solid var(--color-border-light);
            }
            .nav-link::after {
                display: none;
            }
            .nav-link.active {
                background: var(--color-primary-dim);
                padding-left: 12px;
                border-radius: 4px;
            }
            .cat-hero-left h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .featured-content {
                padding: 20px 20px;
            }
            .featured-content h2 {
                font-size: 20px;
            }
            .live-list-item {
                flex-wrap: wrap;
                gap: 12px;
                padding: 14px;
            }
            .live-thumb {
                width: 100%;
                height: 140px;
            }
            .live-info h4 {
                white-space: normal;
            }
            .live-actions {
                width: 100%;
            }
            .live-actions .btn {
                width: 100%;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-card .data-num {
                font-size: 36px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-inner h3 {
                font-size: 22px;
            }
        }
        @media (max-width: 480px) {
            :root {
                --section-gap: 44px;
                --container-padding: 14px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
            }
            .cat-hero-left h1 {
                font-size: 24px;
            }
            .featured-content h2 {
                font-size: 18px;
            }
            .featured-actions {
                flex-direction: column;
            }
            .featured-actions .btn {
                width: 100%;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .tag-cloud-sidebar {
                padding: 18px;
            }
            .featured-image {
                min-height: 180px;
            }
        }

/* roulang page: category5 */
:root {
            --color-bg: #0A0E12;
            --color-card: #11161C;
            --color-card-alt: #161D25;
            --color-primary: #00E5A0;
            --color-primary-dim: rgba(0, 229, 160, 0.15);
            --color-accent: #FF2D78;
            --color-accent-dim: rgba(255, 45, 120, 0.12);
            --color-purple: #7C3AFF;
            --color-purple-dim: rgba(124, 58, 255, 0.12);
            --color-text: #F2F5F7;
            --color-body: #B4BDC6;
            --color-muted: #6B7683;
            --color-border: #1E2630;
            --color-border-light: rgba(30, 38, 48, 0.6);
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-lg: 16px;
            --radius-sm: 4px;
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-primary: 0 4px 20px rgba(0, 229, 160, 0.25);
            --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --font-en: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 68px;
            --section-gap: 80px;
            --container-max: 1200px;
            --container-padding: 24px;
        }

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

        body {
            background-color: var(--color-bg);
            color: var(--color-body);
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.85;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover,
        a:focus {
            color: #33ffb3;
            outline: none;
        }

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

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

        button {
            cursor: pointer;
            font-family: var(--font-cn);
        }

        input,
        textarea,
        select {
            font-family: var(--font-cn);
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 14px;
            position: relative;
        }

        .section-tag::before {
            content: '';
            width: 20px;
            height: 1px;
            background: var(--color-primary);
            display: inline-block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-body);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

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

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            z-index: 1000;
            background-color: rgba(10, 14, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(30, 38, 48, 0.5);
            transition: background-color var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background-color: rgba(10, 14, 18, 0.95);
            border-bottom-color: var(--color-border);
        }

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

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }

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

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

        .nav-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            white-space: nowrap;
        }

        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 6px;
            background: linear-gradient(135deg, var(--color-primary) 0%, #00b882 60%, #009966 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon svg {
            width: 20px;
            height: 20px;
            fill: #0A0E12;
        }

        .nav-logo .logo-text {
            color: var(--color-text);
            font-size: 20px;
            letter-spacing: 0.01em;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: rgba(242, 245, 247, 0.85);
            transition: color var(--transition-fast), border-color var(--transition-fast);
            border-bottom: 2px solid transparent;
            padding-bottom: 2px;
            white-space: nowrap;
            position: relative;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-primary);
            transition: width var(--transition-base);
        }

        .nav-link:hover,
        .nav-link:focus {
            color: var(--color-primary);
        }

        .nav-link:hover::after,
        .nav-link:focus::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--color-primary);
            border-bottom-color: var(--color-primary);
        }

        .nav-link.active::after {
            width: 100%;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            padding: 8px;
            flex-direction: column;
            gap: 4px;
            cursor: pointer;
            z-index: 1001;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-text);
            border-radius: 1px;
            transition: all var(--transition-base);
        }

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

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

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

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background-color: rgba(10, 14, 18, 0.98);
            border-bottom: 1px solid var(--color-border);
            padding: 20px 24px 28px;
            z-index: 999;
            flex-direction: column;
            gap: 4px;
            max-height: calc(100vh - var(--nav-height));
            overflow-y: auto;
        }

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

        .mobile-menu .nav-link {
            display: block;
            padding: 12px 0;
            font-size: 16px;
            border-bottom: 1px solid var(--color-border-light);
            width: 100%;
        }

        .mobile-menu .nav-link::after {
            display: none;
        }

        /* ============ BREADCRUMB ============ */
        .breadcrumb-bar {
            padding-top: calc(var(--nav-height) + 24px);
            background: var(--color-bg);
            border-bottom: 1px solid var(--color-border-light);
            margin-bottom: 0;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            padding: 12px 0;
            flex-wrap: wrap;
        }

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

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

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

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

        /* ============ PAGE HERO (COMPACT BANNER) ============ */
        .page-hero {
            padding: 48px 0 40px;
            background: var(--color-bg);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .page-hero h1 {
            font-size: 36px;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .page-hero .hero-meta {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .page-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--color-muted);
        }

        .page-hero .hero-meta i {
            color: var(--color-primary);
            font-size: 13px;
        }

        .page-hero .hero-desc {
            max-width: 760px;
            font-size: 15px;
            color: var(--color-body);
            line-height: 1.9;
            margin-top: 16px;
            padding-left: 16px;
            border-left: 3px solid var(--color-primary);
        }

        /* ============ FILTER BAR ============ */
        .filter-section {
            padding: 28px 0 20px;
            background: var(--color-bg);
            border-bottom: 1px solid var(--color-border-light);
            margin-bottom: 40px;
        }

        .filter-bar {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
        }

        .filter-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            margin-bottom: 14px;
        }

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

        .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-muted);
            min-width: 70px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .filter-label i {
            color: var(--color-primary);
            font-size: 12px;
        }

        .filter-options {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .filter-btn {
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-body);
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .filter-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

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

        /* ============ PRODUCT GRID ============ */
        .product-grid-section {
            padding: 0 0 60px;
        }

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

        .product-card {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

        .product-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 229, 160, 0.35);
            box-shadow: var(--shadow-hover);
        }

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

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

        .product-card:hover .card-image img {
            transform: scale(1.05);
        }

        .product-card .card-image .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(10, 14, 18, 0.88);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(0, 229, 160, 0.3);
        }

        .product-card .card-image .badge.hot {
            background: rgba(255, 45, 120, 0.9);
            color: #fff;
            border-color: var(--color-accent);
        }

        .product-card .card-image .badge.new {
            background: rgba(124, 58, 255, 0.85);
            color: #fff;
            border-color: var(--color-purple);
        }

        .product-card .card-body {
            padding: 20px 22px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .product-card .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .product-card .card-tags span {
            font-size: 11px;
            font-weight: 500;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            background: var(--color-card-alt);
            color: var(--color-muted);
            border: 1px solid var(--color-border);
        }

        .product-card .card-tags span.primary-tag {
            background: var(--color-primary-dim);
            color: var(--color-primary);
            border-color: rgba(0, 229, 160, 0.3);
        }

        .product-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }

        .product-card .card-desc {
            font-size: 13px;
            color: var(--color-body);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .product-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 16px;
            padding-top: 12px;
            border-top: 1px solid var(--color-border-light);
            font-size: 12px;
            color: var(--color-muted);
        }

        .product-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .product-card .card-meta i {
            color: var(--color-primary);
            font-size: 11px;
        }

        .product-card .card-action {
            margin-top: 14px;
        }

        .product-card .card-action a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            padding: 7px 0;
            border-bottom: 1px solid transparent;
            transition: all var(--transition-fast);
        }

        .product-card .card-action a:hover {
            gap: 10px;
            border-bottom-color: var(--color-primary);
        }

        /* ============ PAGINATION ============ */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            padding: 30px 0 50px;
        }

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

        .pagination button {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            color: var(--color-body);
            width: 40px;
            height: 40px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .pagination button:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .pagination button.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #0A0E12;
            font-weight: 700;
        }

        .pagination button:disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }

        .pagination button:disabled:hover {
            border-color: var(--color-border);
            color: var(--color-body);
        }

        /* ============ CTA SECTION ============ */
        .cta-section {
            padding: 64px 0 70px;
            background: var(--color-bg);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 700px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(0, 229, 160, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--color-card) 0%, var(--color-card-alt) 100%);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-box p {
            font-size: 15px;
            color: var(--color-body);
            margin-bottom: 26px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--color-primary);
            color: #0A0E12;
            padding: 14px 32px;
            box-shadow: var(--shadow-primary);
        }

        .btn-primary:hover {
            background: #33ffb3;
            color: #0A0E12;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(0, 229, 160, 0.35);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-primary);
            color: var(--color-primary);
            padding: 13px 28px;
        }

        .btn-outline:hover {
            background: var(--color-primary-dim);
            color: var(--color-primary);
            border-color: var(--color-primary);
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: #080B0F;
            border-top: 1px solid var(--color-border);
            padding: 50px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.7;
            max-width: 260px;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

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

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

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

        .footer-bottom {
            border-top: 1px solid var(--color-border-light);
            padding-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            font-size: 12px;
            color: var(--color-muted);
        }

        .footer-bottom p {
            margin: 0;
            font-size: 12px;
        }

        .footer-links-row {
            display: flex;
            gap: 18px;
            margin-top: 6px;
        }

        .footer-links-row a {
            font-size: 12px;
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }

        .footer-links-row a:hover {
            color: var(--color-primary);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .nav-left,
            .nav-right {
                gap: 16px;
            }

            .product-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: 60px;
                --container-padding: 18px;
            }

            .nav-left,
            .nav-right {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .site-header .container {
                justify-content: flex-start;
            }

            .nav-logo {
                margin: 0 auto;
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
            }

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

            .product-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .filter-bar {
                padding: 16px;
            }

            .filter-row {
                gap: 12px;
            }

            .filter-label {
                min-width: 60px;
                font-size: 12px;
            }

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

            .cta-box {
                padding: 32px 20px;
            }

            .cta-box h2 {
                font-size: 22px;
            }

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

        @media (max-width: 520px) {
            :root {
                --section-gap: 48px;
                --container-padding: 14px;
            }

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

            .page-hero .hero-meta {
                gap: 12px;
                font-size: 12px;
            }

            .pagination button {
                width: 34px;
                height: 34px;
                font-size: 12px;
            }

            .cta-box .btn-primary {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

/* roulang page: category6 */
:root {
      --color-bg: #0A0E12;
      --color-card: #11161C;
      --color-card-alt: #161D25;
      --color-primary: #00E5A0;
      --color-primary-dim: rgba(0, 229, 160, 0.15);
      --color-accent: #FF2D78;
      --color-accent-dim: rgba(255, 45, 120, 0.12);
      --color-purple: #7C3AFF;
      --color-purple-dim: rgba(124, 58, 255, 0.12);
      --color-text: #F2F5F7;
      --color-body: #B4BDC6;
      --color-muted: #6B7683;
      --color-border: #1E2630;
      --color-border-light: rgba(30, 38, 48, 0.6);
      --radius-card: 10px;
      --radius-btn: 6px;
      --radius-lg: 16px;
      --radius-sm: 4px;
      --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
      --shadow-primary: 0 4px 20px rgba(0, 229, 160, 0.25);
      --font-cn: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
      --font-en: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
      --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
      --transition-base: 220ms cubic-bezier(0.4, 0, 0.2, 1);
      --nav-height: 68px;
      --section-gap: 80px;
      --container-max: 1200px;
      --container-padding: 24px;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      background-color: var(--color-bg);
      color: var(--color-body);
      font-family: var(--font-cn);
      font-size: 16px;
      line-height: 1.85;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    a {
      color: var(--color-primary);
      text-decoration: none;
      transition: color var(--transition-fast);
    }
    a:hover, a:focus {
      color: #33ffb3;
      outline: none;
    }
    a:focus-visible {
      outline: 2px solid var(--color-primary);
      outline-offset: 2px;
      border-radius: 2px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button {
      cursor: pointer;
      font-family: var(--font-cn);
    }
    input, textarea, select {
      font-family: var(--font-cn);
    }
    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 var(--container-padding);
    }
    .section-gap {
      padding: var(--section-gap) 0;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--color-primary);
      margin-bottom: 14px;
      position: relative;
    }
    .section-tag::before {
      content: '';
      width: 20px;
      height: 1px;
      background: var(--color-primary);
      display: inline-block;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 18px;
      letter-spacing: -0.01em;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 16px;
      color: var(--color-body);
      max-width: 680px;
      line-height: 1.9;
      margin-bottom: 40px;
    }
    /* ========= HEADER / NAV ========= */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: var(--nav-height);
      z-index: 1000;
      background-color: rgba(10, 14, 18, 0.82);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(30, 38, 48, 0.5);
      transition: background-color var(--transition-base), border-color var(--transition-base);
    }
    .site-header.scrolled {
      background-color: rgba(10, 14, 18, 0.95);
      border-bottom-color: var(--color-border);
    }
    .site-header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 20px;
    }
    .nav-left, .nav-right {
      display: flex;
      align-items: center;
      gap: 28px;
      flex: 1;
    }
    .nav-left {
      justify-content: flex-end;
    }
    .nav-right {
      justify-content: flex-start;
    }
    .nav-logo {
      flex-shrink: 0;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 22px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--color-text);
      white-space: nowrap;
    }
    .nav-logo .logo-icon {
      width: 34px;
      height: 34px;
      border-radius: 6px;
      background: linear-gradient(135deg, var(--color-primary) 0%, #00b882 60%, #009966 100%);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .nav-logo .logo-icon svg {
      width: 20px;
      height: 20px;
      fill: #0A0E12;
    }
    .nav-link {
      position: relative;
      font-size: 14.5px;
      font-weight: 500;
      color: rgba(255,255,255,0.85);
      padding: 6px 0;
      white-space: nowrap;
      transition: color var(--transition-base);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -2px;
      width: 0;
      height: 2px;
      background: var(--color-primary);
      transition: width var(--transition-base);
    }
    .nav-link:hover, .nav-link:focus {
      color: var(--color-primary);
    }
    .nav-link:hover::after, .nav-link:focus::after {
      width: 100%;
    }
    .nav-link.active {
      color: var(--color-primary);
    }
    .nav-link.active::after {
      width: 100%;
    }
    .hamburger {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      background: transparent;
      border: 0;
      padding: 8px;
      margin-left: auto;
      z-index: 1100;
    }
    .hamburger span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--color-text);
      border-radius: 2px;
      transition: transform var(--transition-base), opacity var(--transition-base);
    }
    .hamburger[aria-expanded="true"] span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .hamburger[aria-expanded="true"] span:nth-child(2) {
      opacity: 0;
    }
    .hamburger[aria-expanded="true"] span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }
    /* ========= HERO BANNER (内页) ========= */
    .inner-hero {
      padding: calc(var(--nav-height) + 60px) 0 80px;
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      background-color: #0A0E12;
      position: relative;
      border-bottom: 1px solid var(--color-border);
    }
    .inner-hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(10,14,18,0.72) 0%, rgba(10,14,18,0.85) 100%);
      pointer-events: none;
    }
    .inner-hero .container {
      position: relative;
      z-index: 2;
    }
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--color-muted);
      margin-bottom: 24px;
    }
    .breadcrumb a {
      color: var(--color-body);
    }
    .breadcrumb a:hover {
      color: var(--color-primary);
    }
    .breadcrumb .sep {
      color: var(--color-muted);
    }
    .inner-hero h1 {
      font-size: 48px;
      font-weight: 800;
      color: var(--color-text);
      line-height: 1.2;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
      max-width: 800px;
    }
    .inner-hero .hero-sub {
      font-size: 18px;
      color: var(--color-body);
      max-width: 760px;
      line-height: 1.9;
    }
    /* ========= 统计条 ========= */
    .stats-bar {
      background: var(--color-card);
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
      padding: 30px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
    }
    .stat-item {
      text-align: left;
      border-left: 2px solid var(--color-primary);
      padding-left: 20px;
    }
    .stat-item .stat-label {
      font-size: 13px;
      color: var(--color-muted);
      font-weight: 500;
      letter-spacing: 0.5px;
      margin-bottom: 8px;
    }
    .stat-item .stat-value {
      font-size: 38px;
      font-weight: 800;
      color: var(--color-text);
      line-height: 1.2;
      font-family: var(--font-en);
    }
    .stat-item .stat-note {
      font-size: 14px;
      color: var(--color-body);
      margin-top: 6px;
    }
    /* ========= 左右分栏 ========= */
    .split-section {
      background: var(--color-bg);
    }
    .split-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 60px;
      align-items: start;
    }
    .split-left .section-title {
      margin-bottom: 24px;
    }
    .split-left h3 {
      font-size: 22px;
      color: var(--color-text);
      margin: 28px 0 12px;
      font-weight: 700;
    }
    .split-left p, .split-left li {
      color: var(--color-body);
      font-size: 16px;
      line-height: 1.9;
      margin-bottom: 12px;
    }
    .split-left ul {
      list-style: none;
      padding: 0;
      margin: 0 0 20px;
    }
    .split-left ul li {
      position: relative;
      padding-left: 26px;
    }
    .split-left ul li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 12px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-primary);
    }
    .info-img-wrap {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--color-border);
      margin: 32px 0;
    }
    .info-img-wrap img {
      width: 100%;
      height: 280px;
      object-fit: cover;
    }
    .split-right {
      position: sticky;
      top: 100px;
    }
    .contact-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 36px 32px;
    }
    .contact-card h3 {
      font-size: 24px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 10px;
    }
    .contact-card .contact-note {
      color: var(--color-body);
      font-size: 15px;
      margin-bottom: 24px;
      line-height: 1.8;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 500;
      color: var(--color-text);
      margin-bottom: 8px;
    }
    .form-group input, .form-group textarea, .form-group select {
      width: 100%;
      background: #0A0E12;
      border: 1px solid var(--color-border);
      border-radius: var(--radius-btn);
      color: var(--color-text);
      padding: 12px 16px;
      font-size: 15px;
      transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    }
    .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
      outline: none;
      border-color: var(--color-primary);
      box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.12);
    }
    .form-group textarea {
      min-height: 100px;
      resize: vertical;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 0;
      border-radius: var(--radius-btn);
      padding: 14px 28px;
      font-size: 16px;
      font-weight: 600;
      transition: background-color var(--transition-base), color var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
      text-align: center;
    }
    .btn-primary {
      background: var(--color-primary);
      color: #0A0E12;
    }
    .btn-primary:hover, .btn-primary:focus {
      background: #33ffb3;
      color: #0A0E12;
      box-shadow: var(--shadow-primary);
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
    }
    .btn-outline:hover, .btn-outline:focus {
      background: var(--color-primary-dim);
      color: var(--color-primary);
    }
    .btn-block {
      width: 100%;
    }
    .form-hint {
      font-size: 12px;
      color: var(--color-muted);
      margin-top: 8px;
    }
    /* ========= 三步流程 ========= */
    .process-section {
      background: var(--color-card);
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
    }
    .process-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 40px;
      margin-top: 40px;
    }
    .process-item {
      position: relative;
      padding: 32px 28px;
      background: var(--color-bg);
      border-radius: var(--radius-card);
      border: 1px solid var(--color-border);
      transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    }
    .process-item:hover {
      transform: translateY(-3px);
      border-color: var(--color-primary);
      box-shadow: var(--shadow-hover);
    }
    .process-num {
      font-family: var(--font-en);
      font-size: 44px;
      font-weight: 800;
      color: var(--color-primary);
      opacity: 0.35;
      line-height: 1;
      margin-bottom: 16px;
    }
    .process-item h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 12px;
    }
    .process-item p {
      font-size: 15px;
      line-height: 1.9;
      color: var(--color-body);
      margin: 0;
    }
    /* ========= 特色数据卡片 ========= */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
      margin-top: 40px;
    }
    .feature-card {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      padding: 28px 30px;
      display: flex;
      gap: 24px;
      align-items: flex-start;
      transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    }
    .feature-card:hover {
      transform: translateY(-2px);
      border-color: var(--color-primary);
      box-shadow: var(--shadow-hover);
    }
    .feature-icon {
      flex-shrink: 0;
      width: 48px;
      height: 48px;
      border-radius: 8px;
      background: var(--color-primary-dim);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary);
      font-size: 22px;
      font-weight: 700;
    }
    .feature-card h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-text);
      margin: 0 0 10px;
    }
    .feature-card p {
      font-size: 15px;
      line-height: 1.9;
      color: var(--color-body);
      margin: 0;
    }
    /* ========= FAQ ========= */
    .faq-section {
      background: var(--color-bg);
    }
    .faq-list {
      max-width: 800px;
      margin-top: 32px;
    }
    .accordion-item {
      background: var(--color-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-card);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .accordion-title {
      width: 100%;
      text-align: left;
      background: transparent;
      border: 0;
      color: var(--color-text);
      font-size: 17px;
      font-weight: 600;
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      transition: color var(--transition-base), background-color var(--transition-base);
    }
    .accordion-title:hover, .accordion-title:focus {
      color: var(--color-primary);
      background-color: rgba(255,255,255,0.02);
    }
    .accordion-title .accordion-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: var(--color-primary-dim);
      color: var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      transition: transform var(--transition-base);
    }
    .accordion-item.open .accordion-icon {
      transform: rotate(45deg);
    }
    .accordion-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height var(--transition-base) ease;
    }
    .accordion-content-inner {
      padding: 0 24px 22px;
      color: var(--color-body);
      font-size: 15px;
      line-height: 1.85;
    }
    /* ========= CTA ========= */
    .cta-section {
      background: linear-gradient(180deg, #0A0E12 0%, #11161C 100%);
      border-top: 1px solid var(--color-border);
    }
    .cta-card {
      background: rgba(0, 229, 160, 0.04);
      border: 1px solid rgba(0, 229, 160, 0.25);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      text-align: center;
    }
    .cta-card h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--color-text);
      margin-bottom: 16px;
    }
    .cta-card p {
      font-size: 16px;
      color: var(--color-body);
      max-width: 560px;
      margin: 0 auto 28px;
      line-height: 1.9;
    }
    .cta-card .btn {
      font-size: 17px;
      padding: 16px 36px;
    }
    /* ========= FOOTER ========= */
    .site-footer {
      background: #080B0E;
      border-top: 1px solid var(--color-border);
      padding: 64px 0 32px;
      margin-top: 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 40px;
    }
    .footer-brand h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--color-text);
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: var(--color-body);
      max-width: 280px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      font-size: 14px;
      color: var(--color-body);
      transition: color var(--transition-fast);
    }
    .footer-col ul li a:hover {
      color: var(--color-primary);
    }
    .footer-bottom {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid var(--color-border);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 13px;
      color: var(--color-muted);
    }
    .footer-links-row {
      display: flex;
      gap: 20px;
    }
    .footer-links-row a {
      color: var(--color-muted);
      font-size: 13px;
    }
    .footer-links-row a:hover {
      color: var(--color-primary);
    }
    /* ========= RESPONSIVE ========= */
    @media (max-width: 1024px) {
      .nav-left, .nav-right {
        gap: 18px;
      }
      .nav-link {
        font-size: 13.5px;
      }
      .inner-hero h1 {
        font-size: 40px;
      }
      .split-grid {
        gap: 40px;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
      }
      .process-grid, .feature-grid {
        grid-template-columns: 1fr 1fr;
      }
      .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
      }
      .footer-brand {
        grid-column: 1 / -1;
      }
    }
    @media (max-width: 768px) {
      :root {
        --section-gap: 64px;
        --container-padding: 18px;
      }
      .hamburger {
        display: flex;
      }
      .nav-left, .nav-right {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(10, 14, 18, 0.98);
        flex-direction: column;
        justify-content: flex-start;
        padding: 24px 20px 32px;
        gap: 18px;
        display: none;
        border-bottom: 1px solid var(--color-border);
        z-index: 999;
      }
      .nav-left.open, .nav-right.open {
        display: flex;
      }
      .nav-left {
        top: var(--nav-height);
      }
      .nav-right {
        top: calc(var(--nav-height) + 270px);
      }
      .nav-link {
        font-size: 16px;
        width: 100%;
        text-align: left;
      }
      .inner-hero {
        padding: calc(var(--nav-height) + 32px) 0 56px;
      }
      .inner-hero h1 {
        font-size: 32px;
      }
      .inner-hero .hero-sub {
        font-size: 16px;
      }
      .breadcrumb {
        font-size: 13px;
        flex-wrap: wrap;
      }
      .split-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .split-right {
        position: static;
      }
      .info-img-wrap img {
        height: 200px;
      }
      .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
      }
      .process-grid, .feature-grid {
        grid-template-columns: 1fr;
      }
      .cta-card {
        padding: 40px 24px;
      }
      .cta-card h2 {
        font-size: 26px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }
    @media (max-width: 520px) {
      :root {
        --section-gap: 52px;
        --container-padding: 14px;
      }
      .nav-logo {
        font-size: 19px;
      }
      .nav-logo .logo-icon {
        width: 28px;
        height: 28px;
      }
      .section-title {
        font-size: 26px;
      }
      .inner-hero h1 {
        font-size: 28px;
      }
      .stats-grid {
        grid-template-columns: 1fr;
      }
      .stat-item .stat-value {
        font-size: 32px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
    }