/* roulang page: index */
:root {
            --primary: #0DF5C2;
            --secondary: #FF2F7E;
            --highlight: #F6FF5B;
            --bg-main: #070B12;
            --bg-secondary: #0D1521;
            --surface: #111B2C;
            --text-primary: #EAF7F4;
            --text-secondary: #9FB3C8;
            --text-disabled: #5E7085;
            --border-primary: rgba(13, 245, 194, 0.16);
            --border-secondary: rgba(255, 47, 126, 0.18);
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-pill: 999px;
            --shadow-default: 0 16px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.5);
            --font-title: 'HarmonyOS Sans SC', 'MiSans', 'OPPO Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'DIN Alternate', 'Roboto Mono', 'Courier New', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: var(--font-title);
            background-color: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
            border: none;
            background: transparent;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-primary);
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #070B12;
            flex-shrink: 0;
        }

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

        .desktop-nav a {
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
        }

        .desktop-nav a:hover,
        .desktop-nav a:focus {
            color: var(--primary);
            transform: translateY(-1px);
        }

        .desktop-nav a.active {
            color: var(--primary);
            position: relative;
        }

        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -6px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(13, 245, 194, 0.6);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover,
        .header-cta:focus {
            box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            transition: var(--transition);
        }

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

        .hamburger:hover,
        .hamburger:focus {
            border-color: var(--primary);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 990;
            background: rgba(7, 11, 18, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-drawer a {
            display: flex;
            align-items: center;
            padding: 16px 20px;
            border-radius: var(--radius-lg);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            transition: var(--transition);
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--primary);
            border-color: var(--primary);
        }

        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-primary);
            padding: 8px 4px max(8px, env(safe-area-inset-bottom));
        }

        .tab-bar-inner {
            display: flex;
            justify-content: space-around;
            align-items: flex-end;
            max-width: 520px;
            margin: 0 auto;
        }

        .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            padding: 8px 6px;
            border-radius: 12px;
            font-size: 10px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            flex: 1;
            text-align: center;
        }

        .tab-item .tab-icon {
            font-size: 20px;
            line-height: 1;
            transition: var(--transition);
        }

        .tab-item:hover,
        .tab-item:focus,
        .tab-item.active {
            color: var(--primary);
        }

        .tab-item.active .tab-icon {
            filter: drop-shadow(0 0 8px rgba(13, 245, 194, 0.5));
        }

        /* Hero Section */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 72px;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(7, 11, 18, 0.82);
            z-index: 1;
        }

        .hero-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 11, 18, 0.4) 0%, rgba(7, 11, 18, 0.9) 100%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .hero-content h1 {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: 0.02em;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .hero-content h1 .accent {
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-benefit-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .hero-benefit-badges .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            box-shadow: 0 0 32px rgba(13, 245, 194, 0.45);
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--radius-pill);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .hero-panel {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-eligibility {
            padding: 20px 24px;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
        }

        .hero-eligibility h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-eligibility h3 .icon {
            color: var(--primary);
        }

        .hero-eligibility p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .hero-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .metric-card {
            padding: 20px;
            border-radius: var(--radius-lg);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }

        .metric-card .metric-label {
            font-size: 12px;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .metric-card .metric-value {
            font-family: var(--font-num);
            font-size: 30px;
            font-weight: 800;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .metric-card .metric-delta {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 6px;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        .metric-delta.up {
            background: rgba(13, 245, 194, 0.12);
            color: var(--primary);
        }

        .metric-delta.down {
            background: rgba(255, 47, 126, 0.12);
            color: var(--secondary);
        }

        .metric-delta.flat {
            background: rgba(246, 255, 91, 0.12);
            color: var(--highlight);
        }

        /* Section General */
        .section {
            padding: 72px 0;
            position: relative;
        }

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

        .section-header {
            margin-bottom: 40px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: rgba(13, 245, 194, 0.08);
            border: 1px solid var(--border-primary);
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: 0.02em;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 640px;
        }

        /* Quick Metrics Ticker */
        .metrics-ticker {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            padding: 4px 0 12px;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .metrics-ticker::-webkit-scrollbar {
            display: none;
        }

        .ticker-item {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            font-size: 13px;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: var(--transition);
        }

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

        .ticker-item .num {
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 15px;
            color: var(--primary);
        }

        /* Service Matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .service-card {
            position: relative;
            padding: 24px;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
            overflow: hidden;
        }

        .service-card:hover,
        .service-card:focus {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover), 0 0 0 1px var(--primary);
            border-color: var(--primary);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover::before,
        .service-card:focus::before {
            opacity: 1;
        }

        .service-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: rgba(13, 245, 194, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .service-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.02em;
            transition: var(--transition);
        }

        .service-link:hover,
        .service-link:focus {
            gap: 10px;
        }

        .service-badge-mini {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            background: rgba(246, 255, 91, 0.1);
            border: 1px solid rgba(246, 255, 91, 0.2);
            font-size: 10px;
            font-weight: 700;
            color: var(--highlight);
            letter-spacing: 0.04em;
        }

        /* Comparison Section */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 24px;
            align-items: center;
        }

        .comparison-side {
            padding: 24px;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
        }

        .comparison-side.opponent {
            border-color: var(--border-secondary);
        }

        .comparison-side h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .comparison-bar {
            height: 8px;
            border-radius: 4px;
            background: var(--bg-secondary);
            margin-bottom: 10px;
            overflow: hidden;
        }

        .comparison-bar .fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            transition: width 1s ease;
        }

        .comparison-side.opponent .comparison-bar .fill {
            background: linear-gradient(135deg, #FF2F7E, #F6FF5B);
        }

        .comparison-stats {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .comparison-stats .num {
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 18px;
            color: var(--text-primary);
        }

        .comparison-diff {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            padding: 0 8px;
        }

        .diff-badge {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-size: 16px;
            font-weight: 800;
            background: rgba(246, 255, 91, 0.1);
            border: 1px solid rgba(246, 255, 91, 0.3);
            color: var(--highlight);
        }

        .diff-label {
            font-size: 11px;
            color: var(--text-secondary);
            text-align: center;
            white-space: nowrap;
        }

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

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, #0DF5C2, #1CB5E0, rgba(13, 245, 194, 0.1));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 24px;
        }

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

        .timeline-dot {
            position: absolute;
            left: -26px;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            box-shadow: 0 0 16px rgba(13, 245, 194, 0.5);
        }

        .timeline-year {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }

        .timeline-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* Info List */
        .info-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .info-card {
            display: flex;
            gap: 16px;
            padding: 18px;
            border-radius: var(--radius-lg);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            overflow: hidden;
        }

        .info-card:hover,
        .info-card:focus {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .info-card .info-img {
            width: 120px;
            height: 68px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
            position: relative;
        }

        .info-card .info-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .info-card:hover .info-img img,
        .info-card:focus .info-img img {
            transform: scale(1.05);
        }

        .info-card .info-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-width: 0;
        }

        .info-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .info-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .info-card .info-meta {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }

        .info-card .info-tag {
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            background: rgba(13, 245, 194, 0.08);
            border: 1px solid var(--border-primary);
            font-size: 11px;
            color: var(--primary);
            white-space: nowrap;
        }

        .info-card .info-time {
            font-size: 11px;
            color: var(--text-disabled);
            white-space: nowrap;
        }

        /* Trust Badges */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .trust-item {
            padding: 22px;
            border-radius: var(--radius-lg);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            text-align: center;
            transition: var(--transition);
        }

        .trust-item:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .trust-item .trust-icon {
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 10px;
            display: block;
        }

        .trust-item h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 6px;
        }

        .trust-item p {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        /* Brand Intro */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 32px;
            align-items: start;
        }

        .brand-intro .brand-visual {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            height: 100%;
            min-height: 280px;
        }

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

        .brand-intro .brand-text {
            padding: 28px;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
        }

        .brand-intro .brand-text h2 {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .brand-intro .brand-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        /* Scenario Entry */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .scenario-card {
            position: relative;
            padding: 26px;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
            overflow: hidden;
        }

        .scenario-card:hover,
        .scenario-card:focus {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover), 0 0 0 1px var(--primary);
            border-color: var(--primary);
        }

        .scenario-card .scenario-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .scenario-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .scenario-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
        }

        .scenario-card .scenario-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.02em;
        }

        .scenario-card:hover .scenario-link,
        .scenario-card:focus .scenario-link {
            gap: 10px;
        }

        /* Quick Answers */
        .qa-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .qa-item {
            padding: 20px;
            border-radius: var(--radius-lg);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
        }

        .qa-item:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .qa-item h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .qa-item h3 .q-icon {
            color: var(--primary);
            font-weight: 800;
        }

        .qa-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* FAQ Accordion */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-radius: var(--radius-lg);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            text-align: left;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            transition: var(--transition);
            background: none;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(13, 245, 194, 0.08);
            border: 1px solid var(--border-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #070B12;
            border-color: var(--primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* Conversion Form */
        .form-section {
            background: linear-gradient(135deg, rgba(13, 245, 194, 0.04), rgba(28, 181, 224, 0.04));
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            box-shadow: var(--shadow-default);
        }

        .form-section .form-info h2 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

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

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

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .form-group.full {
            grid-column: 1 / -1;
        }

        .form-group label {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
        }

        .form-group input,
        .form-group select {
            padding: 12px 16px;
            border-radius: var(--radius-lg);
            background: transparent;
            border: 1px solid var(--border-primary);
            color: var(--text-primary);
            font-size: 14px;
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(13, 245, 194, 0.12);
            outline: none;
        }

        .form-group select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239FB3C8' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            cursor: pointer;
        }

        .form-group select option {
            background: var(--surface);
            color: var(--text-primary);
        }

        .form-submit {
            grid-column: 1 / -1;
            padding: 14px 30px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            transition: var(--transition);
        }

        .form-submit:hover,
        .form-submit:focus {
            box-shadow: 0 0 32px rgba(13, 245, 194, 0.45);
            transform: translateY(-2px);
        }

        /* Latency Showcase */
        .latency-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .latency-card {
            padding: 22px;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            box-shadow: var(--shadow-default);
            text-align: center;
            transition: var(--transition);
        }

        .latency-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .latency-card .device-icon {
            font-size: 26px;
            display: block;
            margin-bottom: 8px;
        }

        .latency-card h3 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }

        .latency-card .latency-value {
            font-family: var(--font-num);
            font-size: 30px;
            font-weight: 800;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .latency-card .latency-unit {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* Tag Cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag-cloud a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            font-size: 13px;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .tag-cloud a:hover,
        .tag-cloud a:focus {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

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

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

        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-top: 12px;
            max-width: 280px;
        }

        .footer-col h3 {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover,
        .footer-col a:focus {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-primary);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: var(--text-disabled);
        }

        .footer-bottom .domain {
            color: var(--text-disabled);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .header-cta {
                display: none;
            }

            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero {
                min-height: auto;
                padding-top: 100px;
                padding-bottom: 60px;
            }

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

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

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

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

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

            .form-section {
                grid-template-columns: 1fr;
                padding: 28px;
            }

            .comparison-wrapper {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .comparison-diff {
                flex-direction: row;
                justify-content: center;
                padding: 8px;
            }

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

        @media (max-width: 767px) {
            .desktop-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-tab-bar {
                display: block;
            }

            .site-header .header-inner {
                height: 60px;
            }

            .mobile-drawer {
                top: 60px;
            }

            body {
                padding-bottom: 72px;
            }

            .hero {
                padding-top: 80px;
                padding-bottom: 40px;
            }

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

            .section {
                padding: 48px 0;
            }

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

            .section-desc {
                font-size: 14px;
            }

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

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

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

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

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

            .info-card .info-img {
                width: 100px;
                height: 60px;
            }

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

            .metrics-ticker {
                gap: 8px;
            }

            .ticker-item {
                padding: 8px 14px;
                font-size: 12px;
            }

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

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

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

            .form-group.full {
                grid-column: 1;
            }

            .form-submit {
                grid-column: 1;
            }

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

            .metric-card {
                padding: 14px;
            }

            .metric-card .metric-value {
                font-size: 24px;
            }

            .timeline-year {
                font-size: 18px;
            }

            .section-header {
                margin-bottom: 28px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 26px;
            }

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

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

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

            .info-card .info-img {
                width: 80px;
                height: 52px;
            }

            .info-card h3 {
                font-size: 13px;
            }

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

            .brand-intro .brand-text {
                padding: 20px;
            }

            .brand-intro .brand-text h2 {
                font-size: 20px;
            }

            .brand-intro .brand-text p {
                font-size: 14px;
            }
        }

        @media (min-width: 1024px) {
            .mobile-tab-bar,
            .mobile-drawer,
            .hamburger {
                display: none;
            }
        }

        @media (min-width: 768px) and (max-width: 1023px) {
            .mobile-tab-bar {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-drawer {
                display: none;
            }

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

            body {
                padding-bottom: 0;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
        }

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

/* roulang page: category2 */
:root {
        --primary: #0DF5C2;
        --secondary: #FF2F7E;
        --highlight: #F6FF5B;
        --bg-main: #070B12;
        --bg-secondary: #0D1521;
        --surface: #111B2C;
        --text-primary: #EAF7F4;
        --text-secondary: #9FB3C8;
        --text-disabled: #5E7085;
        --border-primary: rgba(13, 245, 194, 0.16);
        --border-secondary: rgba(255, 47, 126, 0.18);
        --radius-xl: 24px;
        --radius-lg: 18px;
        --radius-pill: 999px;
        --shadow-default: 0 16px 40px rgba(0, 0, 0, 0.35);
        --shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.5);
        --font-title: 'HarmonyOS Sans SC', 'MiSans', 'OPPO Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        --font-num: 'DIN Alternate', 'Roboto Mono', 'Courier New', monospace;
        --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    html {
        scroll-behavior: smooth;
        -webkit-tap-highlight-color: transparent;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    body {
        font-family: var(--font-title);
        background-color: var(--bg-main);
        color: var(--text-primary);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: var(--transition);
    }
    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
        color: inherit;
        outline: none;
        border: none;
        background: transparent;
    }
    button {
        cursor: pointer;
    }
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    /* Header & Navigation */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(7, 11, 18, 0.85);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-primary);
        transition: var(--transition);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 20px;
        letter-spacing: 0.02em;
        color: var(--text-primary);
        white-space: nowrap;
    }
    .logo .logo-mark {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: 800;
        color: #070B12;
        flex-shrink: 0;
    }
    .desktop-nav {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .desktop-nav a {
        padding: 8px 14px;
        border-radius: var(--radius-pill);
        font-size: 14px;
        font-weight: 500;
        color: var(--text-secondary);
        letter-spacing: 0.02em;
        transition: var(--transition);
        white-space: nowrap;
    }
    .desktop-nav a:hover,
    .desktop-nav a:focus {
        color: var(--primary);
        transform: translateY(-1px);
    }
    .desktop-nav a.active {
        color: var(--primary);
        position: relative;
    }
    .desktop-nav a.active::after {
        content: '';
        position: absolute;
        left: 14px;
        right: 14px;
        bottom: -6px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
        box-shadow: 0 0 12px rgba(13, 245, 194, 0.6);
    }
    .header-cta {
        display: inline-flex;
        align-items: center;
        padding: 10px 22px;
        border-radius: var(--radius-pill);
        background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
        color: #070B12;
        font-weight: 700;
        font-size: 14px;
        letter-spacing: 0.02em;
        transition: var(--transition);
        white-space: nowrap;
        flex-shrink: 0;
    }
    .header-cta:hover,
    .header-cta:focus {
        box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
        transform: translateY(-1px);
    }
    .hamburger {
        display: none;
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: var(--surface);
        border: 1px solid var(--border-primary);
        align-items: center;
        justify-content: center;
        flex-direction: column;
        gap: 5px;
        transition: var(--transition);
    }
    .hamburger span {
        display: block;
        width: 20px;
        height: 2px;
        border-radius: 2px;
        background: var(--text-primary);
        transition: var(--transition);
    }
    .hamburger:hover,
    .hamburger:focus {
        border-color: var(--primary);
    }
    .mobile-drawer {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 990;
        background: rgba(7, 11, 18, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 24px;
        flex-direction: column;
        gap: 8px;
        overflow-y: auto;
    }
    .mobile-drawer.open {
        display: flex;
    }
    .mobile-drawer a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 14px 18px;
        border-radius: 16px;
        background: var(--surface);
        border: 1px solid var(--border-primary);
        color: var(--text-primary);
        font-weight: 600;
        font-size: 16px;
        transition: var(--transition);
    }
    .mobile-drawer a:hover,
    .mobile-drawer a.active {
        border-color: var(--primary);
        color: var(--primary);
    }
    .mobile-drawer a .arrow {
        font-size: 20px;
        color: var(--text-disabled);
    }
    /* Bottom Tab Navigation (mobile) */
    .bottom-tab-nav {
        display: none;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 1001;
        background: rgba(7, 11, 18, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid var(--border-primary);
        padding: 8px 4px calc(8px + env(safe-area-inset-bottom));
        justify-content: space-around;
        align-items: center;
    }
    .bottom-tab-nav a {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        font-size: 11px;
        font-weight: 500;
        color: var(--text-secondary);
        padding: 6px 4px;
        border-radius: 12px;
        transition: var(--transition);
    }
    .bottom-tab-nav a svg {
        width: 22px;
        height: 22px;
        fill: none;
        stroke: currentColor;
        stroke-width: 2;
        stroke-linecap: round;
        stroke-linejoin: round;
    }
    .bottom-tab-nav a.active {
        color: var(--primary);
    }
    .bottom-tab-nav a.active svg {
        fill: rgba(13, 245, 194, 0.15);
    }
    /* Main layout */
    main {
        padding-top: 72px;
        padding-bottom: 80px;
    }
    .section {
        padding: 60px 0;
    }
    .section-alt {
        background: var(--bg-secondary);
    }
    .section-heading {
        margin-bottom: 32px;
    }
    .section-title {
        font-size: 30px;
        font-weight: 700;
        letter-spacing: 0.02em;
        line-height: 1.2;
        color: var(--text-primary);
        margin-bottom: 12px;
    }
    .section-desc {
        font-size: 16px;
        color: var(--text-secondary);
        max-width: 720px;
        line-height: 1.7;
    }
    /* Breadcrumb */
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--text-disabled);
        margin-bottom: 20px;
    }
    .breadcrumb a {
        color: var(--text-secondary);
        transition: var(--transition);
    }
    .breadcrumb a:hover,
    .breadcrumb a:focus {
        color: var(--primary);
    }
    .breadcrumb .sep {
        color: var(--text-disabled);
    }
    .breadcrumb .current {
        color: var(--primary);
        font-weight: 500;
    }
    /* Category H1 Area */
    .category-hero {
        padding: 40px 0 32px;
    }
    .category-hero h1 {
        font-size: 42px;
        font-weight: 700;
        letter-spacing: 0.02em;
        line-height: 1.2;
        color: var(--text-primary);
        margin-bottom: 16px;
    }
    .category-hero .summary {
        font-size: 18px;
        color: var(--text-secondary);
        max-width: 800px;
        line-height: 1.7;
    }
    /* Toolbar */
    .toolbar {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        align-items: center;
        margin-bottom: 28px;
        padding: 16px;
        background: var(--surface);
        border: 1px solid var(--border-primary);
        border-radius: var(--radius-lg);
    }
    .toolbar-group {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        align-items: center;
    }
    .toolbar-label {
        font-size: 14px;
        color: var(--text-disabled);
        margin-right: 4px;
        white-space: nowrap;
    }
    .toolbar-btn {
        padding: 8px 16px;
        border-radius: var(--radius-pill);
        background: transparent;
        color: var(--text-secondary);
        font-size: 13px;
        font-weight: 500;
        border: 1px solid var(--border-primary);
        transition: var(--transition);
        white-space: nowrap;
    }
    .toolbar-btn:hover,
    .toolbar-btn:focus {
        color: var(--primary);
        border-color: var(--primary);
    }
    .toolbar-btn.active {
        background: rgba(13, 245, 194, 0.12);
        color: var(--primary);
        border-color: var(--primary);
    }
    /* Hero Card Grid */
    .champion-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .champion-card {
        background: var(--surface);
        border: 1px solid var(--border-primary);
        border-radius: var(--radius-xl);
        overflow: hidden;
        transition: var(--transition);
        box-shadow: var(--shadow-default);
    }
    .champion-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
        border-color: var(--primary);
    }
    .champion-card .card-img {
        aspect-ratio: 16/9;
        background: var(--bg-secondary);
        overflow: hidden;
        position: relative;
    }
    .champion-card .card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .champion-card:hover .card-img img {
        transform: scale(1.05);
    }
    .champion-card .card-body {
        padding: 18px;
    }
    .champion-card .champ-name {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-primary);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .champion-card .champ-role {
        font-size: 13px;
        color: var(--text-disabled);
        margin-left: auto;
    }
    .champion-card .stat-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 16px;
    }
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 12px;
        border-radius: var(--radius-pill);
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.02em;
        background: var(--bg-secondary);
        border: 1px solid var(--border-primary);
        color: var(--text-secondary);
        font-family: var(--font-num);
    }
    .badge .label {
        font-family: var(--font-title);
        color: var(--text-disabled);
        font-weight: 400;
        font-size: 12px;
    }
    .badge.highlight {
        color: var(--highlight);
        border-color: rgba(246, 255, 91, 0.3);
        background: rgba(246, 255, 91, 0.05);
    }
    .badge.primary {
        color: var(--primary);
        border-color: var(--border-primary);
    }
    .badge.secondary {
        color: var(--secondary);
        border-color: var(--border-secondary);
    }
    /* Trend Summary */
    .trend-summary {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .trend-card {
        background: var(--surface);
        border: 1px solid var(--border-primary);
        border-radius: var(--radius-xl);
        padding: 24px;
    }
    .trend-card h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 16px;
    }
    .trend-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .trend-item {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .trend-rank {
        width: 32px;
        height: 32px;
        border-radius: 10px;
        background: rgba(13, 245, 194, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        color: var(--primary);
        font-family: var(--font-num);
        flex-shrink: 0;
    }
    .trend-name {
        flex: 1;
        font-weight: 600;
        color: var(--text-primary);
    }
    .trend-bar {
        width: 120px;
        height: 8px;
        background: var(--bg-secondary);
        border-radius: 999px;
        overflow: hidden;
        flex-shrink: 0;
    }
    .trend-bar-fill {
        height: 100%;
        border-radius: 999px;
        background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
    }
    .trend-bar-fill.secondary {
        background: linear-gradient(135deg, #FF2F7E, #F6FF5B);
    }
    .trend-value {
        font-family: var(--font-num);
        font-weight: 700;
        color: var(--highlight);
        min-width: 48px;
        text-align: right;
    }
    /* Related Articles */
    .article-list {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .article-card {
        background: var(--surface);
        border: 1px solid var(--border-primary);
        border-radius: var(--radius-xl);
        overflow: hidden;
        transition: var(--transition);
        box-shadow: var(--shadow-default);
    }
    .article-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
        border-color: var(--primary);
    }
    .article-card .article-img {
        aspect-ratio: 16/9;
        overflow: hidden;
    }
    .article-card .article-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .article-card:hover .article-img img {
        transform: scale(1.03);
    }
    .article-card .article-body {
        padding: 18px;
    }
    .article-card .article-tag {
        display: inline-block;
        font-size: 12px;
        padding: 4px 10px;
        border-radius: 999px;
        background: rgba(13, 245, 194, 0.1);
        color: var(--primary);
        margin-bottom: 10px;
    }
    .article-card h3 {
        font-size: 17px;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: 8px;
        line-height: 1.4;
    }
    .article-card p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.6;
        margin-bottom: 12px;
    }
    .article-card .article-meta {
        font-size: 13px;
        color: var(--text-disabled);
    }
    /* Topic Entrances */
    .topic-grid {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 16px;
    }
    .topic-card {
        background: var(--surface);
        border: 1px solid var(--border-primary);
        border-radius: var(--radius-lg);
        padding: 20px;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .topic-card:hover {
        border-color: var(--primary);
        transform: translateY(-3px);
        box-shadow: var(--shadow-hover);
    }
    .topic-card .topic-icon {
        font-size: 28px;
    }
    .topic-card h4 {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-primary);
    }
    .topic-card p {
        font-size: 13px;
        color: var(--text-secondary);
        line-height: 1.5;
    }
    .topic-card .topic-link {
        font-size: 13px;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }
    /* Subscribe CTA */
    .subscribe-cta {
        background: linear-gradient(135deg, rgba(13,245,194,0.08), rgba(28,181,224,0.05));
        border: 1px solid var(--border-primary);
        border-radius: var(--radius-xl);
        padding: 40px;
        text-align: center;
    }
    .subscribe-cta h2 {
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 8px;
        color: var(--text-primary);
    }
    .subscribe-cta p {
        font-size: 16px;
        color: var(--text-secondary);
        max-width: 560px;
        margin: 0 auto 24px;
    }
    .subscribe-form {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        justify-content: center;
    }
    .subscribe-form input,
    .subscribe-form select {
        background: rgba(7,11,18,0.6);
        border: 1px solid var(--border-primary);
        border-radius: var(--radius-pill);
        padding: 10px 18px;
        color: var(--text-primary);
        font-size: 14px;
        min-width: 220px;
        transition: var(--transition);
    }
    .subscribe-form input:focus,
    .subscribe-form select:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(13,245,194,0.12);
    }
    .subscribe-form button {
        padding: 10px 28px;
        border-radius: var(--radius-pill);
        background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
        color: #070B12;
        font-weight: 700;
        font-size: 14px;
        letter-spacing: 0.02em;
        transition: var(--transition);
        white-space: nowrap;
    }
    .subscribe-form button:hover,
    .subscribe-form button:focus {
        box-shadow: 0 0 24px rgba(13,245,194,0.4);
        transform: translateY(-1px);
    }
    /* Footer */
    .site-footer {
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-primary);
        padding: 48px 0 24px;
        margin-top: 40px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 32px;
        margin-bottom: 32px;
    }
    .footer-brand p {
        font-size: 14px;
        color: var(--text-secondary);
        margin-top: 12px;
        max-width: 320px;
        line-height: 1.6;
    }
    .footer-col h3 {
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 16px;
        color: var(--text-primary);
    }
    .footer-col a {
        display: block;
        font-size: 14px;
        color: var(--text-secondary);
        margin-bottom: 10px;
        transition: var(--transition);
    }
    .footer-col a:hover,
    .footer-col a:focus {
        color: var(--primary);
    }
    .footer-bottom {
        border-top: 1px solid var(--border-primary);
        padding-top: 20px;
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 14px;
        color: var(--text-disabled);
    }
    .footer-bottom .domain {
        font-family: var(--font-num);
        letter-spacing: 0.02em;
    }
    /* Responsive */
    @media (max-width: 1024px) {
        .desktop-nav a {
            padding: 8px 10px;
            font-size: 13px;
        }
        .header-cta {
            padding: 8px 16px;
            font-size: 13px;
        }
        .champion-grid {
            grid-template-columns: repeat(3, 1fr);
        }
        .topic-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }
    @media (max-width: 768px) {
        .desktop-nav,
        .header-cta {
            display: none;
        }
        .hamburger {
            display: flex;
        }
        .champion-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .trend-summary {
            grid-template-columns: 1fr;
        }
        .article-list {
            grid-template-columns: 1fr;
        }
        .topic-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr;
        }
        .category-hero h1 {
            font-size: 32px;
        }
        .section-title {
            font-size: 24px;
        }
        main {
            padding-bottom: 80px;
        }
    }
    @media (max-width: 520px) {
        .champion-grid {
            grid-template-columns: 1fr;
        }
        .topic-grid {
            grid-template-columns: 1fr 1fr;
        }
        .bottom-tab-nav {
            display: flex;
        }
        body {
            padding-bottom: 72px;
        }
        .category-hero h1 {
            font-size: 28px;
        }
        .category-hero .summary {
            font-size: 16px;
        }
    }
    @media (min-width: 769px) {
        .bottom-tab-nav {
            display: none !important;
        }
    }

/* roulang page: category1 */
:root {
            --primary: #0DF5C2;
            --secondary: #FF2F7E;
            --highlight: #F6FF5B;
            --bg-main: #070B12;
            --bg-secondary: #0D1521;
            --surface: #111B2C;
            --text-primary: #EAF7F4;
            --text-secondary: #9FB3C8;
            --text-disabled: #5E7085;
            --border-primary: rgba(13, 245, 194, 0.16);
            --border-secondary: rgba(255, 47, 126, 0.18);
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 16px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.5);
            --font-title: 'HarmonyOS Sans SC', 'MiSans', 'OPPO Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'DIN Alternate', 'Roboto Mono', 'Courier New', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --section-gap: 68px;
            --card-gap: 20px;
            --bottom-tab-height: 72px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }
        body {
            font-family: var(--font-title);
            background-color: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding-top: 72px;
            padding-bottom: 0;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
            border: none;
            background: transparent;
        }
        button {
            cursor: pointer;
        }
        h1,
        h2,
        h3,
        h4,
        p,
        ul,
        ol,
        figure {
            margin: 0;
            padding: 0;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-primary);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #070B12;
            flex-shrink: 0;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
        }
        .desktop-nav a {
            padding: 8px 12px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .desktop-nav a:hover,
        .desktop-nav a:focus {
            color: var(--primary);
            transform: translateY(-1px);
        }
        .desktop-nav a.active {
            color: var(--primary);
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: -6px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(13, 245, 194, 0.6);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-cta:hover,
        .header-cta:focus {
            box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: var(--transition);
        }
        .hamburger:hover,
        .hamburger:focus {
            border-color: var(--primary);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 990;
            background: rgba(7, 11, 18, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .mobile-drawer a:hover,
        .mobile-drawer a:focus {
            color: var(--primary);
            border-color: var(--primary);
            transform: translateX(4px);
        }
        .mobile-drawer a.active {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(13, 245, 194, 0.06);
        }

        /* Mobile Bottom Tab */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-primary);
            height: var(--bottom-tab-height);
            padding-bottom: env(safe-area-inset-bottom, 0);
            align-items: center;
            justify-content: space-around;
        }
        .bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            color: var(--text-secondary);
            font-weight: 500;
            padding: 4px 6px;
            border-radius: 10px;
            transition: var(--transition);
            flex: 1;
            max-width: 80px;
            text-align: center;
        }
        .bottom-tab a .tab-icon {
            font-size: 20px;
            line-height: 1;
        }
        .bottom-tab a.active {
            color: var(--primary);
        }
        .bottom-tab a:hover,
        .bottom-tab a:focus {
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* Page breadcrumb area */
        .page-hero {
            padding: 44px 0 28px;
            background: var(--bg-main);
            border-bottom: 1px solid var(--border-primary);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -140px;
            right: -120px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(13, 245, 194, 0.08), transparent 65%);
            pointer-events: none;
            border-radius: 50%;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
            margin-bottom: 18px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-disabled);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        .page-hero h1 {
            font-size: 34px;
            line-height: 1.25;
            letter-spacing: 0.02em;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        .page-hero .hero-desc {
            max-width: 760px;
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.7;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 18px;
        }
        .data-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .data-badge .num {
            color: var(--primary);
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 15px;
        }

        /* Section common */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .section-header h2 {
            font-size: 26px;
            line-height: 1.3;
            letter-spacing: 0.02em;
            font-weight: 700;
            color: var(--text-primary);
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 500px;
        }
        .section-sub {
            color: var(--text-secondary);
            font-size: 14px;
            letter-spacing: 0.02em;
            margin-top: 4px;
        }

        /* Filter toolbar */
        .filter-toolbar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            padding: 14px 16px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            margin-bottom: 24px;
        }
        .filter-toolbar .filter-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-right: 4px;
            white-space: nowrap;
        }
        .filter-toolbar .chip {
            padding: 7px 16px;
            border-radius: var(--radius-pill);
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            font-size: 13px;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }
        .filter-toolbar .chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .filter-toolbar .chip.active {
            background: rgba(13, 245, 194, 0.12);
            border-color: var(--primary);
            color: var(--primary);
            font-weight: 600;
        }

        /* Ranking list */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 20px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .rank-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            opacity: 0;
            transition: var(--transition);
        }
        .rank-item:hover::before {
            opacity: 1;
        }
        .rank-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .rank-num {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .rank-item:nth-child(1) .rank-num {
            background: rgba(13, 245, 194, 0.14);
            border-color: rgba(13, 245, 194, 0.35);
            color: var(--primary);
        }
        .rank-item:nth-child(2) .rank-num {
            background: rgba(246, 255, 91, 0.1);
            border-color: rgba(246, 255, 91, 0.3);
            color: var(--highlight);
        }
        .rank-item:nth-child(3) .rank-num {
            background: rgba(255, 47, 126, 0.1);
            border-color: rgba(255, 47, 126, 0.3);
            color: var(--secondary);
        }
        .rank-main {
            flex: 1;
            min-width: 0;
        }
        .rank-main .rank-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            margin-bottom: 2px;
        }
        .rank-main .rank-meta {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .rank-change {
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 4px;
        }
        .rank-change .winrate {
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }
        .rank-change .change-badge {
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            font-family: var(--font-num);
            white-space: nowrap;
        }
        .change-badge.up {
            background: rgba(13, 245, 194, 0.12);
            color: var(--primary);
            border: 1px solid rgba(13, 245, 194, 0.25);
        }
        .change-badge.down {
            background: rgba(255, 47, 126, 0.12);
            color: var(--secondary);
            border: 1px solid rgba(255, 47, 126, 0.25);
        }
        .rank-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 16px;
            overflow: hidden;
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
        }
        .rank-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Trend summary card */
        .trend-summary-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
        }
        .trend-card {
            padding: 22px 20px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            transition: var(--transition);
        }
        .trend-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .trend-card .trend-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .trend-card .trend-value {
            font-family: var(--font-num);
            font-size: 30px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
        }
        .trend-card .trend-value.up {
            color: var(--primary);
        }
        .trend-card .trend-value.down {
            color: var(--secondary);
        }
        .trend-card .trend-foot {
            font-size: 12px;
            color: var(--text-disabled);
            margin-top: 6px;
        }

        /* Article list */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .article-item {
            display: flex;
            gap: 16px;
            padding: 14px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            transition: var(--transition);
            align-items: center;
        }
        .article-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .article-item .article-thumb {
            flex-shrink: 0;
            width: 128px;
            height: 76px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
        }
        .article-item .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .article-item:hover .article-thumb img {
            transform: scale(1.03);
        }
        .article-info {
            flex: 1;
            min-width: 0;
        }
        .article-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            letter-spacing: 0.02em;
            transition: var(--transition);
        }
        .article-item:hover .article-info h3 {
            color: var(--primary);
        }
        .article-info .article-meta {
            font-size: 12px;
            color: var(--text-disabled);
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .article-info .article-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
            line-height: 1.5;
        }

        /* Scenario entry */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--card-gap);
        }
        .scenario-card {
            padding: 20px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .scenario-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .scenario-card .scenario-icon {
            font-size: 28px;
        }
        .scenario-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .scenario-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
            flex: 1;
        }
        .scenario-card .scenario-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }
        .scenario-card .scenario-link:hover {
            gap: 8px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(13, 245, 194, 0.3);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(13, 245, 194, 0.1);
            border: 1px solid rgba(13, 245, 194, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 16px;
            transition: var(--transition);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: rgba(13, 245, 194, 0.2);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* CTA form */
        .cta-section {
            padding: var(--section-gap) 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-primary);
            border-bottom: 1px solid var(--border-primary);
        }
        .cta-card {
            padding: 36px 32px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 32px;
            align-items: center;
        }
        .cta-card h2 {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 10px;
        }
        .cta-card p {
            color: var(--text-secondary);
            font-size: 14px;
        }
        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .cta-form input,
        .cta-form select {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            font-size: 14px;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(13, 245, 194, 0.12);
        }
        .cta-form input::placeholder {
            color: var(--text-disabled);
        }
        .cta-form .btn-primary {
            grid-column: 1 / -1;
            padding: 13px 20px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            text-align: center;
            cursor: pointer;
            border: none;
        }
        .cta-form .btn-primary:hover,
        .cta-form .btn-primary:focus {
            box-shadow: 0 0 28px rgba(13, 245, 194, 0.4);
            transform: translateY(-1px);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-primary);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 14px;
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-primary);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-disabled);
        }
        .footer-bottom .domain {
            font-family: var(--font-num);
            letter-spacing: 0.04em;
        }

        /* Button styles */
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border-primary);
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline:hover,
        .btn-outline:focus {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 18px rgba(13, 245, 194, 0.2);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .desktop-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }
            .header-cta {
                padding: 9px 18px;
                font-size: 13px;
            }
            .trend-summary-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-card {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 64px;
                padding-bottom: calc(var(--bottom-tab-height) + 20px);
            }
            .site-header {
                position: fixed;
            }
            .header-inner {
                height: 64px;
            }
            .desktop-nav {
                display: none;
            }
            .header-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .bottom-tab {
                display: flex;
            }
            .page-hero {
                padding: 28px 0 20px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .section {
                padding: 44px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .rank-item {
                flex-wrap: wrap;
                gap: 12px;
                padding: 14px 16px;
            }
            .rank-change {
                align-items: flex-start;
                flex-direction: row;
                gap: 10px;
            }
            .rank-change .winrate {
                font-size: 20px;
            }
            .trend-summary-grid {
                grid-template-columns: 1fr;
            }
            .article-item {
                flex-direction: column;
            }
            .article-item .article-thumb {
                width: 100%;
                height: 140px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-form {
                grid-template-columns: 1fr;
            }
            .cta-form .btn-primary {
                grid-column: auto;
            }
            .cta-card {
                padding: 24px 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .data-badge {
                font-size: 12px;
                padding: 5px 12px;
            }
            .rank-icon {
                width: 44px;
                height: 44px;
                border-radius: 12px;
            }
            .rank-num {
                width: 36px;
                height: 36px;
                font-size: 15px;
                border-radius: 10px;
            }
            .filter-toolbar {
                padding: 10px 12px;
                gap: 8px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0DF5C2;
            --secondary: #FF2F7E;
            --highlight: #F6FF5B;
            --bg-main: #070B12;
            --bg-secondary: #0D1521;
            --surface: #111B2C;
            --text-primary: #EAF7F4;
            --text-secondary: #9FB3C8;
            --text-disabled: #5E7085;
            --border-primary: rgba(13, 245, 194, 0.16);
            --border-secondary: rgba(255, 47, 126, 0.18);
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-pill: 999px;
            --shadow-default: 0 16px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.5);
            --font-title: 'HarmonyOS Sans SC', 'MiSans', 'OPPO Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'DIN Alternate', 'Roboto Mono', 'Courier New', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            font-family: var(--font-title);
            background-color: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 72px;
            padding-bottom: 80px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
            border: none;
            background: transparent;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-primary);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #070B12;
            flex-shrink: 0;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .desktop-nav a {
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
        }
        .desktop-nav a:hover,
        .desktop-nav a:focus {
            color: var(--primary);
            transform: translateY(-1px);
        }
        .desktop-nav a.active {
            color: var(--primary);
            position: relative;
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -6px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(13, 245, 194, 0.6);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-cta:hover,
        .header-cta:focus {
            box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            transition: var(--transition);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: var(--transition);
        }
        .hamburger:hover,
        .hamburger:focus {
            border-color: var(--primary);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 990;
            background: rgba(7, 11, 18, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 14px 18px;
            border-radius: var(--radius-lg);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--primary);
            background: var(--surface);
            border-color: var(--border-primary);
        }
        .mobile-bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-primary);
            padding: 8px 4px;
            padding-bottom: max(8px, env(safe-area-inset-bottom));
        }
        .mobile-bottom-tab .tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
        }
        .mobile-bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            font-size: 10px;
            color: var(--text-secondary);
            padding: 4px 8px;
            border-radius: 12px;
            min-width: 56px;
            transition: var(--transition);
            font-weight: 500;
        }
        .mobile-bottom-tab a .tab-icon {
            font-size: 18px;
            line-height: 1;
        }
        .mobile-bottom-tab a.active {
            color: var(--primary);
        }
        .mobile-bottom-tab a.active .tab-icon {
            text-shadow: 0 0 12px rgba(13, 245, 194, 0.6);
        }
        main {
            min-height: 60vh;
        }
        .page-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 28px 0 8px;
            flex-wrap: wrap;
        }
        .page-breadcrumb a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .page-breadcrumb a:hover {
            color: var(--primary);
        }
        .page-breadcrumb .sep {
            color: var(--text-disabled);
        }
        .page-breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }
        .page-title-section {
            padding: 20px 0 32px;
        }
        .page-title-section h1 {
            font-size: 36px;
            line-height: 1.2;
            letter-spacing: 0.02em;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .page-title-section .page-summary {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 820px;
            line-height: 1.8;
        }
        .section {
            padding: 40px 0;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .section-header h2 {
            font-size: 26px;
            line-height: 1.25;
            letter-spacing: 0.02em;
            font-weight: 700;
            color: var(--text-primary);
        }
        .section-header .section-tag {
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            background: var(--border-primary);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            color: var(--primary);
            gap: 4px;
            transition: var(--transition);
        }
        .badge.secondary {
            border-color: var(--border-secondary);
            color: var(--secondary);
        }
        .badge.highlight {
            border-color: rgba(246, 255, 91, 0.3);
            color: var(--highlight);
        }
        .card {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            padding: 28px;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(13, 245, 194, 0.35);
            transform: translateY(-3px);
        }
        .timeline-section {
            position: relative;
        }
        .timeline-section .timeline-line {
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--border-primary), var(--border-secondary));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding-left: 48px;
            margin-bottom: 32px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item .timeline-dot {
            position: absolute;
            left: 6px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            box-shadow: 0 0 16px rgba(13, 245, 194, 0.5);
        }
        .timeline-item .timeline-card {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 22px;
            transition: var(--transition);
        }
        .timeline-item .timeline-card:hover {
            border-color: rgba(13, 245, 194, 0.4);
            box-shadow: var(--shadow-default);
        }
        .timeline-item .version-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            margin-bottom: 8px;
        }
        .timeline-item .version-date {
            font-size: 12px;
            color: var(--text-disabled);
            font-weight: 400;
        }
        .timeline-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .timeline-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .chart-card {
            background: linear-gradient(145deg, #0D1521 0%, #111B2C 60%, #0F1E2E 100%);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            padding: 28px;
            box-shadow: var(--shadow-default);
        }
        .chart-card .chart-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .chart-card .chart-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .chart-card .chart-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .chart-card .chart-actions button {
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            border: 1px solid var(--border-primary);
            color: var(--text-secondary);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .chart-card .chart-actions button:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .chart-card .chart-actions button.primary {
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            border: none;
        }
        .chart-card .chart-actions button.primary:hover {
            box-shadow: 0 0 20px rgba(13, 245, 194, 0.35);
        }
        .curve-chart {
            height: 220px;
            position: relative;
            margin-top: 8px;
        }
        .curve-chart .curve-area {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 245, 194, 0.12) 0%, rgba(13, 245, 194, 0.01) 100%);
            border-radius: 12px;
            clip-path: polygon(0 20%, 12% 32%, 25% 18%, 38% 42%, 52% 28%, 65% 52%, 78% 38%, 90% 60%, 100% 48%, 100% 100%, 0 100%);
        }
        .curve-chart .curve-line {
            position: absolute;
            inset: 0;
            border-bottom: 1px solid var(--border-primary);
            border-left: 1px solid rgba(13, 245, 194, 0.1);
            border-radius: 12px;
        }
        .curve-chart .curve-dots {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 4%;
        }
        .curve-chart .curve-dots span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(13, 245, 194, 0.7);
        }
        .chart-x-axis {
            display: flex;
            justify-content: space-between;
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-disabled);
            letter-spacing: 0.02em;
        }
        .chart-legend {
            display: flex;
            gap: 20px;
            margin-top: 16px;
            flex-wrap: wrap;
        }
        .chart-legend span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .chart-legend .legend-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }
        .chart-legend .legend-dot.green {
            background: var(--primary);
        }
        .chart-legend .legend-dot.pink {
            background: var(--secondary);
        }
        .trend-summary-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }
        .trend-summary-item {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: var(--transition);
        }
        .trend-summary-item:hover {
            border-color: rgba(13, 245, 194, 0.4);
        }
        .trend-summary-item .item-label {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .trend-summary-item .item-value {
            font-size: 28px;
            font-weight: 700;
            font-family: var(--font-num);
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .trend-summary-item .item-value.pink {
            color: var(--secondary);
        }
        .trend-summary-item .item-value.yellow {
            color: var(--highlight);
        }
        .trend-summary-item .item-sub {
            font-size: 12px;
            color: var(--text-disabled);
        }
        .article-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .article-row {
            display: flex;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 16px;
            transition: var(--transition);
            align-items: center;
        }
        .article-row:hover {
            border-color: rgba(13, 245, 194, 0.4);
            box-shadow: var(--shadow-default);
        }
        .article-row .article-thumb {
            width: 180px;
            height: 100px;
            flex-shrink: 0;
            border-radius: 12px;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .article-row .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .article-row:hover .article-thumb img {
            transform: scale(1.03);
        }
        .article-row .article-info {
            flex: 1;
            min-width: 0;
        }
        .article-row .article-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .article-row .article-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-row .article-meta {
            display: flex;
            gap: 12px;
            margin-top: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .article-row .article-meta span {
            font-size: 12px;
            color: var(--text-disabled);
        }
        .article-row .article-meta .tag {
            color: var(--primary);
            background: var(--border-primary);
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            font-weight: 500;
        }
        .scenario-entry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }
        .scenario-entry {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: var(--transition);
            text-align: left;
        }
        .scenario-entry:hover {
            border-color: rgba(13, 245, 194, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .scenario-entry .entry-icon {
            font-size: 28px;
            line-height: 1;
        }
        .scenario-entry h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .scenario-entry p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .scenario-entry .entry-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
        }
        .scenario-entry .entry-link:hover {
            gap: 8px;
        }
        .faq-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-primary);
            padding: 32px;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-primary);
            padding: 16px 0;
            transition: var(--transition);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: var(--transition);
            text-align: left;
            width: 100%;
            padding: 0;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            transition: var(--transition);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #070B12;
        }
        .faq-item .faq-answer-inner {
            padding: 12px 0 4px 0;
        }
        .subscribe-cta {
            background: linear-gradient(145deg, #0D1521 0%, #111B2C 55%, #0F1E2E 100%);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            padding: 36px;
            box-shadow: var(--shadow-default);
        }
        .subscribe-cta h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .subscribe-cta p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .subscribe-form {
            display: grid;
            grid-template-columns: 1fr 1fr auto;
            gap: 12px;
            align-items: center;
        }
        .subscribe-form input {
            background: rgba(7, 11, 18, 0.6);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-pill);
            padding: 12px 20px;
            font-size: 14px;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .subscribe-form input::placeholder {
            color: var(--text-disabled);
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(13, 245, 194, 0.15);
        }
        .subscribe-form button {
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
        }
        .subscribe-form button:hover {
            box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
            transform: translateY(-1px);
        }
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-primary);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: var(--text-disabled);
            padding-top: 16px;
            border-top: 1px solid rgba(13, 245, 194, 0.08);
            flex-wrap: wrap;
        }
        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .mobile-bottom-tab {
                display: block;
            }
            body {
                padding-bottom: 90px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
            .page-title-section h1 {
                font-size: 28px;
            }
            .section {
                padding: 28px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .card {
                padding: 20px;
            }
            .chart-card {
                padding: 20px;
            }
            .chart-card .chart-title {
                font-size: 18px;
            }
            .curve-chart {
                height: 160px;
            }
            .trend-summary-item .item-value {
                font-size: 22px;
            }
            .article-row {
                flex-direction: column;
                align-items: stretch;
            }
            .article-row .article-thumb {
                width: 100%;
                height: 160px;
            }
            .scenario-entry-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-form {
                grid-template-columns: 1fr;
            }
            .faq-section {
                padding: 20px;
            }
            .subscribe-cta {
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .timeline-item {
                padding-left: 40px;
            }
            .timeline-section .timeline-line {
                left: 12px;
            }
            .timeline-item .timeline-dot {
                left: 2px;
                width: 12px;
                height: 12px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .page-title-section h1 {
                font-size: 24px;
            }
            .page-title-section .page-summary {
                font-size: 14px;
            }
            .chart-x-axis {
                font-size: 10px;
            }
            .timeline-item .timeline-card {
                padding: 16px;
            }
            .timeline-item h3 {
                font-size: 15px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #0DF5C2;
            --secondary: #FF2F7E;
            --highlight: #F6FF5B;
            --bg-main: #070B12;
            --bg-secondary: #0D1521;
            --surface: #111B2C;
            --text-primary: #EAF7F4;
            --text-secondary: #9FB3C8;
            --text-disabled: #5E7085;
            --border-primary: rgba(13, 245, 194, 0.16);
            --border-secondary: rgba(255, 47, 126, 0.18);
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-pill: 999px;
            --shadow-default: 0 16px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.5);
            --font-title: 'HarmonyOS Sans SC', 'MiSans', 'OPPO Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'DIN Alternate', 'Roboto Mono', 'Courier New', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: var(--font-title);
            background-color: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 0;
            min-height: 100vh;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
            border: none;
            background: transparent;
        }

        button {
            cursor: pointer;
        }

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

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-primary);
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #070B12;
            flex-shrink: 0;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

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

        .desktop-nav a {
            padding: 8px 13px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .desktop-nav a:hover,
        .desktop-nav a:focus {
            color: var(--primary);
            transform: translateY(-1px);
        }

        .desktop-nav a.active {
            color: var(--primary);
            position: relative;
        }

        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            left: 13px;
            right: 13px;
            bottom: -4px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(13, 245, 194, 0.6);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-cta:hover,
        .header-cta:focus {
            box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .hamburger:hover,
        .hamburger:focus {
            border-color: var(--primary);
        }

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

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

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

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 990;
            background: rgba(7, 11, 18, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            border-radius: var(--radius-lg);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            transition: var(--transition);
        }

        .mobile-drawer a:hover,
        .mobile-drawer a:focus {
            color: var(--primary);
            border-color: var(--primary);
        }

        .mobile-drawer a.active {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(13, 245, 194, 0.06);
        }

        /* Main */
        main {
            padding-top: 72px;
            min-height: calc(100vh - 72px);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 32px 0 8px;
        }

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

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

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

        .breadcrumb .separator {
            color: var(--text-disabled);
            flex-shrink: 0;
        }

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

        /* Category H1 Section */
        .category-hero {
            padding: 24px 0 16px;
            background: transparent;
        }

        .category-hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .category-hero-text h1 {
            font-size: 36px;
            line-height: 1.25;
            letter-spacing: 0.02em;
            margin-bottom: 14px;
            color: var(--text-primary);
            font-weight: 700;
        }

        .category-hero-text h1 .highlight-text {
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .category-hero-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

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

        .hero-badge .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        .category-hero-image {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            border: 1px solid var(--border-primary);
        }

        .category-hero-image img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .category-hero-image .image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 11, 18, 0.1) 0%, rgba(7, 11, 18, 0.6) 100%);
            display: flex;
            align-items: flex-end;
            padding: 16px;
        }

        .image-overlay .overlay-tag {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        /* Filter Toolbar */
        .filter-section {
            padding: 20px 0;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            padding: 14px 18px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }

        .filter-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 600;
            letter-spacing: 0.04em;
            flex-shrink: 0;
        }

        .filter-select {
            padding: 8px 32px 8px 14px;
            border-radius: var(--radius-pill);
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            color: var(--text-primary);
            font-size: 13px;
            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 fill='%239FB3C8' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .filter-select:hover,
        .filter-select:focus {
            border-color: var(--primary);
        }

        .filter-actions {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-left: auto;
        }

        .filter-btn {
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }

        .filter-btn:hover,
        .filter-btn:focus {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .filter-btn.active {
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            border-color: transparent;
            font-weight: 700;
        }

        /* Section Titles */
        .section-title {
            font-size: 26px;
            line-height: 1.3;
            letter-spacing: 0.02em;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .section-header {
            margin-bottom: 28px;
        }

        /* Comparison Table */
        .comparison-section {
            padding: 28px 0;
        }

        .comparison-table-wrap {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 720px;
        }

        .comparison-table th {
            padding: 16px 18px;
            text-align: left;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-primary);
            white-space: nowrap;
        }

        .comparison-table td {
            padding: 14px 18px;
            font-size: 14px;
            color: var(--text-primary);
            border-bottom: 1px solid rgba(159, 179, 200, 0.08);
            white-space: nowrap;
        }

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

        .comparison-table tbody tr {
            transition: var(--transition);
        }

        .comparison-table tbody tr:hover {
            background: rgba(13, 245, 194, 0.03);
        }

        .team-cell {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .team-avatar {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(13, 245, 194, 0.2), rgba(28, 181, 224, 0.15));
            border: 1px solid var(--border-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }

        .team-name {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-primary);
        }

        .stat-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-family: var(--font-num);
            font-weight: 700;
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            color: var(--primary);
        }

        .stat-badge.up {
            background: rgba(13, 245, 194, 0.08);
            border-color: rgba(13, 245, 194, 0.25);
            color: var(--primary);
        }

        .stat-badge.down {
            background: rgba(255, 47, 126, 0.08);
            border-color: rgba(255, 47, 126, 0.25);
            color: var(--secondary);
        }

        .stat-badge.highlight-badge {
            background: rgba(246, 255, 91, 0.08);
            border-color: rgba(246, 255, 91, 0.25);
            color: var(--highlight);
        }

        .trend-indicator {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            font-family: var(--font-num);
        }

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

        .trend-indicator.down {
            color: var(--secondary);
        }

        /* Ranking Summary */
        .ranking-summary-section {
            padding: 28px 0;
        }

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

        .ranking-card {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
        }

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

        .ranking-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
        }

        .ranking-card-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
        }

        .ranking-card-value {
            font-size: 28px;
            font-family: var(--font-num);
            font-weight: 700;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(159, 179, 200, 0.08);
        }

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

        .ranking-pos {
            width: 24px;
            height: 24px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            font-family: var(--font-num);
            flex-shrink: 0;
        }

        .ranking-pos.top1 {
            background: rgba(246, 255, 91, 0.15);
            color: var(--highlight);
        }

        .ranking-pos.top2 {
            background: rgba(13, 245, 194, 0.12);
            color: var(--primary);
        }

        .ranking-pos.top3 {
            background: rgba(255, 47, 126, 0.12);
            color: var(--secondary);
        }

        .ranking-pos.normal {
            background: var(--bg-secondary);
            color: var(--text-secondary);
        }

        .ranking-team-name {
            flex: 1;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
        }

        .ranking-team-stat {
            font-size: 13px;
            font-family: var(--font-num);
            font-weight: 700;
            color: var(--primary);
        }

        /* Team Detail Cards */
        .team-detail-section {
            padding: 28px 0;
        }

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

        .team-detail-card {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .team-detail-image {
            position: relative;
            height: 140px;
            overflow: hidden;
        }

        .team-detail-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .team-detail-image .team-image-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: rgba(7, 11, 18, 0.8);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-primary);
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.04em;
        }

        .team-detail-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .team-detail-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .team-detail-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .team-detail-sub {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .team-detail-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .detail-badge {
            padding: 5px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            font-family: var(--font-num);
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            color: var(--text-secondary);
        }

        .detail-badge.primary-badge {
            background: rgba(13, 245, 194, 0.08);
            border-color: rgba(13, 245, 194, 0.25);
            color: var(--primary);
        }

        .detail-badge.highlight-badge {
            background: rgba(246, 255, 91, 0.08);
            border-color: rgba(246, 255, 91, 0.25);
            color: var(--highlight);
        }

        .team-detail-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Related Articles */
        .related-section {
            padding: 28px 0;
        }

        .related-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .related-card {
            display: flex;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 14px;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
        }

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

        .related-image {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            flex-shrink: 0;
        }

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

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

        .related-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .related-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .related-summary {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .related-tag {
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 500;
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            color: var(--text-secondary);
        }

        .related-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid var(--border-primary);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
        }

        .related-more:hover,
        .related-more:focus {
            background: rgba(13, 245, 194, 0.08);
            border-color: var(--primary);
            box-shadow: 0 0 20px rgba(13, 245, 194, 0.15);
        }

        /* Scenario Entry */
        .scenario-section {
            padding: 28px 0;
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        .scenario-card {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 18px 16px;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .scenario-icon {
            font-size: 24px;
        }

        .scenario-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .scenario-desc {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .scenario-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .scenario-link:hover,
        .scenario-link:focus {
            color: var(--highlight);
        }

        /* FAQ */
        .faq-section {
            padding: 28px 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

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

        .faq-question:hover {
            color: var(--primary);
            background: rgba(13, 245, 194, 0.03);
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #070B12;
            border-color: transparent;
        }

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

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

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

        /* CTA Form */
        .cta-section {
            padding: 28px 0 48px;
        }

        .cta-panel {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            box-shadow: var(--shadow-default);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

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

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
        }

        .form-group input,
        .form-group select {
            padding: 11px 16px;
            border-radius: var(--radius-pill);
            background: var(--bg-secondary);
            border: 1px solid var(--border-primary);
            color: var(--text-primary);
            font-size: 14px;
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 16px rgba(13, 245, 194, 0.12);
        }

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

        .form-submit {
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            text-align: center;
        }

        .form-submit:hover,
        .form-submit:focus {
            box-shadow: 0 0 28px rgba(13, 245, 194, 0.35);
            transform: translateY(-1px);
        }

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

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

        .footer-brand .logo {
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-col h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover,
        .footer-col a:focus {
            color: var(--primary);
            transform: translateX(2px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            border-top: 1px solid rgba(159, 179, 200, 0.1);
            font-size: 13px;
            color: var(--text-disabled);
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom .domain {
            font-family: var(--font-num);
            letter-spacing: 0.04em;
        }

        /* Bottom Tab Nav */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-primary);
            padding-bottom: env(safe-area-inset-bottom, 0);
        }

        .bottom-tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 60px;
        }

        .bottom-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            font-size: 10px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            padding: 4px 8px;
            border-radius: 8px;
            white-space: nowrap;
        }

        .bottom-tab-item:hover,
        .bottom-tab-item:focus {
            color: var(--primary);
        }

        .bottom-tab-item.active {
            color: var(--primary);
        }

        .bottom-tab-item .tab-icon {
            font-size: 18px;
            line-height: 1.2;
        }

        .bottom-tab-item.active .tab-icon {
            text-shadow: 0 0 12px rgba(13, 245, 194, 0.5);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero-inner {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

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

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

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

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

        @media (max-width: 768px) {
            .site-header {
                border-bottom-width: 1px;
            }

            .desktop-nav {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-drawer {
                display: none;
            }

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

            main {
                padding-bottom: 72px;
            }

            .bottom-tab-nav {
                display: block;
            }

            .site-footer {
                padding-bottom: 88px;
            }

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

            .category-hero-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .category-hero-image img {
                height: 180px;
            }

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

            .team-detail-grid {
                grid-template-columns: 1fr;
            }

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

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

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

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .filter-actions {
                margin-left: 0;
                width: 100%;
            }

            .filter-btn {
                flex: 1;
                text-align: center;
            }

            .comparison-table-wrap {
                border-radius: var(--radius-lg);
            }
        }

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

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

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

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

            .cta-panel {
                padding: 22px 18px;
            }

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

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

            .faq-answer p {
                font-size: 13px;
            }

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

            .bottom-tab-item {
                font-size: 9px;
                padding: 3px 5px;
            }

            .bottom-tab-item .tab-icon {
                font-size: 16px;
            }
        }

/* roulang page: category5 */
:root {
      --primary: #0DF5C2;
      --secondary: #FF2F7E;
      --highlight: #F6FF5B;
      --bg-main: #070B12;
      --bg-secondary: #0D1521;
      --surface: #111B2C;
      --text-primary: #EAF7F4;
      --text-secondary: #9FB3C8;
      --text-disabled: #5E7085;
      --border-primary: rgba(13, 245, 194, 0.16);
      --border-secondary: rgba(255, 47, 126, 0.18);
      --radius-xl: 24px;
      --radius-lg: 18px;
      --radius-pill: 999px;
      --shadow-default: 0 16px 40px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.5);
      --font-title: 'HarmonyOS Sans SC', 'MiSans', 'OPPO Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --font-num: 'DIN Alternate', 'Roboto Mono', 'Courier New', monospace;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    html {
      scroll-behavior: smooth;
      -webkit-tap-highlight-color: transparent;
    }
    body {
      font-family: var(--font-title);
      background-color: var(--bg-main);
      color: var(--text-primary);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      margin: 0;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      color: inherit;
      outline: none;
      border: none;
      background: transparent;
    }
    button {
      cursor: pointer;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Header & Navigation */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(7, 11, 18, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-primary);
      transition: var(--transition);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 20px;
      letter-spacing: 0.02em;
      color: var(--text-primary);
      white-space: nowrap;
    }
    .logo .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      font-weight: 800;
      color: #070B12;
      flex-shrink: 0;
    }
    .desktop-nav {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .desktop-nav a {
      padding: 8px 14px;
      border-radius: var(--radius-pill);
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      letter-spacing: 0.02em;
      transition: var(--transition);
      white-space: nowrap;
    }
    .desktop-nav a:hover,
    .desktop-nav a:focus {
      color: var(--primary);
      transform: translateY(-1px);
    }
    .desktop-nav a.active {
      color: var(--primary);
      position: relative;
    }
    .desktop-nav a.active::after {
      content: '';
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: -6px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
      box-shadow: 0 0 12px rgba(13, 245, 194, 0.6);
    }
    .header-cta {
      display: inline-flex;
      align-items: center;
      padding: 10px 22px;
      border-radius: var(--radius-pill);
      background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
      color: #070B12;
      font-weight: 700;
      font-size: 14px;
      letter-spacing: 0.02em;
      transition: var(--transition);
      white-space: nowrap;
      flex-shrink: 0;
    }
    .header-cta:hover,
    .header-cta:focus {
      box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
      transform: translateY(-1px);
    }
    .hamburger {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--surface);
      border: 1px solid var(--border-primary);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
      transition: var(--transition);
    }
    .hamburger span {
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 2px;
      background: var(--text-primary);
      transition: var(--transition);
    }
    .hamburger:hover,
    .hamburger:focus {
      border-color: var(--primary);
    }
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 990;
      background: rgba(7, 11, 18, 0.98);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      padding: 24px;
      flex-direction: column;
      gap: 8px;
      overflow-y: auto;
    }
    .mobile-drawer.open {
      display: flex;
    }
    .mobile-drawer a {
      padding: 14px 18px;
      border-radius: var(--radius-lg);
      font-size: 16px;
      font-weight: 500;
      color: var(--text-secondary);
      background: var(--surface);
      border: 1px solid var(--border-primary);
      transition: var(--transition);
    }
    .mobile-drawer a:hover,
    .mobile-drawer a.active {
      color: var(--primary);
      border-color: var(--primary);
      background: rgba(13, 245, 194, 0.05);
    }
    .bottom-nav {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(7, 11, 18, 0.96);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-top: 1px solid var(--border-primary);
      padding-bottom: env(safe-area-inset-bottom);
    }
    .bottom-nav-inner {
      display: flex;
      justify-content: space-around;
      align-items: center;
      height: 64px;
    }
    .bottom-nav a {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
      font-size: 11px;
      font-weight: 500;
      color: var(--text-secondary);
      letter-spacing: 0.02em;
      transition: var(--transition);
      flex: 1;
      text-align: center;
    }
    .bottom-nav a .nav-icon {
      font-size: 20px;
      line-height: 1;
    }
    .bottom-nav a.active,
    .bottom-nav a:hover {
      color: var(--primary);
    }
    .bottom-nav a.active .nav-icon {
      text-shadow: 0 0 12px rgba(13, 245, 194, 0.5);
    }

    /* Main */
    .site-main {
      padding-top: 72px;
    }

    /* Category Hero */
    .category-hero {
      padding: 56px 0 40px;
      background: var(--bg-secondary);
      border-bottom: 1px solid var(--border-primary);
    }
    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 24px;
    }
    .breadcrumb a {
      color: var(--text-secondary);
      transition: var(--transition);
    }
    .breadcrumb a:hover {
      color: var(--primary);
    }
    .breadcrumb span.sep {
      color: var(--text-disabled);
    }
    .category-hero h1 {
      font-size: 32px;
      letter-spacing: 0.02em;
      line-height: 1.2;
      margin: 0 0 16px;
    }
    .category-summary {
      font-size: 18px;
      color: var(--text-secondary);
      max-width: 780px;
      margin: 0 0 24px;
    }
    .category-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      padding: 8px 18px;
      border-radius: var(--radius-pill);
      background: var(--surface);
      border: 1px solid var(--border-primary);
      font-size: 13px;
      font-weight: 500;
      color: var(--text-primary);
      letter-spacing: 0.02em;
    }
    .badge .highlight-num {
      font-family: var(--font-num);
      color: var(--primary);
      margin-left: 6px;
      font-weight: 700;
    }

    /* Section spacing */
    section {
      padding: 64px 0;
    }
    .section-heading {
      margin-bottom: 40px;
    }
    .section-heading h2 {
      font-size: 28px;
      letter-spacing: 0.02em;
      line-height: 1.2;
      margin: 0 0 8px;
    }
    .section-heading p {
      font-size: 16px;
      color: var(--text-secondary);
      margin: 0;
      max-width: 660px;
    }

    /* Filter bar */
    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 32px;
    }
    .filter-chip {
      display: inline-flex;
      align-items: center;
      padding: 10px 20px;
      border-radius: var(--radius-pill);
      background: var(--surface);
      border: 1px solid var(--border-primary);
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      transition: var(--transition);
    }
    .filter-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-1px);
    }
    .filter-chip.active {
      background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
      color: #070B12;
      border-color: transparent;
      font-weight: 700;
    }

    /* Replay cards */
    .replay-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .replay-card {
      background: var(--surface);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-primary);
      overflow: hidden;
      transition: var(--transition);
      box-shadow: var(--shadow-default);
    }
    .replay-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover), 0 0 0 1px var(--primary);
    }
    .replay-thumb {
      position: relative;
      height: 170px;
      background-size: cover;
      background-position: center;
    }
    .replay-thumb .duration {
      position: absolute;
      bottom: 12px;
      right: 12px;
      background: rgba(7, 11, 18, 0.8);
      backdrop-filter: blur(6px);
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      font-family: var(--font-num);
    }
    .replay-body {
      padding: 20px;
    }
    .replay-body h3 {
      font-size: 18px;
      line-height: 1.3;
      margin: 0 0 8px;
    }
    .replay-body p {
      font-size: 14px;
      color: var(--text-secondary);
      margin: 0 0 16px;
      line-height: 1.6;
    }
    .replay-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      align-items: center;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      background: rgba(13, 245, 194, 0.08);
      border: 1px solid var(--border-primary);
      font-size: 12px;
      color: var(--primary);
      letter-spacing: 0.02em;
    }
    .badge-data {
      display: inline-flex;
      align-items: center;
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      background: rgba(246, 255, 91, 0.1);
      border: 1px solid rgba(246, 255, 91, 0.2);
      font-size: 13px;
      font-weight: 700;
      color: var(--highlight);
      font-family: var(--font-num);
      margin-left: auto;
    }
    .list-more {
      display: flex;
      justify-content: center;
      margin-top: 32px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      border-radius: var(--radius-pill);
      font-weight: 700;
      font-size: 15px;
      letter-spacing: 0.02em;
      transition: var(--transition);
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--border-primary);
      color: var(--primary);
    }
    .btn-outline:hover {
      background: rgba(13, 245, 194, 0.05);
      border-color: var(--primary);
      box-shadow: 0 0 20px rgba(13, 245, 194, 0.2);
      transform: translateY(-2px);
    }
    .btn-primary {
      background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
      color: #070B12;
      border: none;
    }
    .btn-primary:hover {
      box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
      transform: translateY(-2px);
    }

    /* Trend cards */
    .trend-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .trend-card {
      background: var(--surface);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-primary);
      padding: 28px;
      transition: var(--transition);
    }
    .trend-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }
    .trend-card h3 {
      font-size: 18px;
      margin: 0 0 12px;
      color: var(--text-primary);
    }
    .stat-large {
      font-family: var(--font-num);
      font-size: 36px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.01em;
      margin-bottom: 8px;
    }
    .stat-large.negative {
      color: var(--secondary);
    }
    .trend-card p {
      font-size: 14px;
      color: var(--text-secondary);
      margin: 0;
    }

    /* Reading list */
    .reading-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .reading-item {
      display: flex;
      gap: 20px;
      background: var(--surface);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-primary);
      padding: 16px;
      transition: var(--transition);
    }
    .reading-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }
    .reading-img {
      width: 200px;
      height: 120px;
      object-fit: cover;
      border-radius: var(--radius-lg);
      flex-shrink: 0;
    }
    .reading-info {
      flex: 1;
    }
    .reading-info h3 {
      font-size: 18px;
      margin: 0 0 8px;
      line-height: 1.3;
    }
    .reading-info p {
      font-size: 14px;
      color: var(--text-secondary);
      margin: 0 0 12px;
    }
    .reading-info .meta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .reading-info .time {
      font-size: 12px;
      color: var(--text-disabled);
    }

    /* Channel entry */
    .channel-entry {
      background: var(--bg-secondary);
    }
    .channel-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
    }
    .channel-card {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 28px 16px;
      background: var(--surface);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-primary);
      font-size: 16px;
      font-weight: 600;
      color: var(--text-primary);
      text-align: center;
      transition: var(--transition);
      min-height: 120px;
    }
    .channel-card:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    /* FAQ */
    .faq-section {
      background: var(--bg-main);
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      max-width: 800px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--surface);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-primary);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item[open] {
      border-left: 3px solid var(--primary);
    }
    .faq-item summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: '+';
      font-size: 24px;
      color: var(--primary);
      transition: var(--transition);
    }
    .faq-item[open] summary::after {
      content: '−';
      transform: rotate(180deg);
    }
    .faq-content {
      padding: 0 24px 24px;
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* Apply CTA */
    .apply-section {
      background: var(--bg-secondary);
    }
    .apply-card {
      background: var(--surface);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-primary);
      padding: 48px;
      text-align: center;
      box-shadow: var(--shadow-default);
    }
    .apply-card h2 {
      font-size: 28px;
      margin: 0 0 12px;
    }
    .apply-card p {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 560px;
      margin: 0 auto 28px;
    }
    .apply-form {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      max-width: 600px;
      margin: 0 auto;
    }
    .apply-form input,
    .apply-form select {
      flex: 1;
      min-width: 180px;
      padding: 14px 20px;
      border-radius: var(--radius-pill);
      background: transparent;
      border: 1px solid var(--border-primary);
      color: var(--text-primary);
      font-size: 14px;
    }
    .apply-form input:focus,
    .apply-form select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(13, 245, 194, 0.15);
    }
    .apply-form input::placeholder {
      color: var(--text-disabled);
    }
    .apply-form select option {
      background: var(--surface);
      color: var(--text-primary);
    }
    .form-note {
      margin-top: 16px;
      font-size: 12px;
      color: var(--text-disabled);
    }

    /* Footer */
    .site-footer {
      background: var(--bg-main);
      border-top: 1px solid var(--border-primary);
      padding: 64px 0 32px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand .logo {
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 14px;
      color: var(--text-secondary);
      max-width: 320px;
      margin: 0;
    }
    .footer-col h3 {
      font-size: 16px;
      margin: 0 0 16px;
      color: var(--text-primary);
    }
    .footer-col a {
      display: block;
      font-size: 14px;
      color: var(--text-secondary);
      padding: 6px 0;
      transition: var(--transition);
    }
    .footer-col a:hover {
      color: var(--primary);
      transform: translateX(4px);
    }
    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      padding-top: 24px;
      border-top: 1px solid var(--border-primary);
      font-size: 13px;
      color: var(--text-disabled);
    }
    .footer-bottom .domain {
      font-family: var(--font-num);
      letter-spacing: 0.04em;
    }

    /* Responsive */
    @media (max-width: 1023px) {
      .desktop-nav {
        display: none;
      }
      .header-cta {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .bottom-nav {
        display: block;
      }
      .site-main {
        padding-bottom: 64px;
      }
      .replay-grid,
      .trend-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .channel-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }
    @media (max-width: 767px) {
      .container {
        padding: 0 16px;
      }
      .category-hero h1 {
        font-size: 26px;
      }
      .category-summary {
        font-size: 16px;
      }
      .section-heading h2 {
        font-size: 24px;
      }
      .replay-grid,
      .trend-grid {
        grid-template-columns: 1fr;
      }
      .channel-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
      }
      .reading-item {
        flex-direction: column;
      }
      .reading-img {
        width: 100%;
        height: 160px;
      }
      .apply-card {
        padding: 32px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
      }
    }
    @media (max-width: 520px) {
      .bottom-nav a {
        font-size: 10px;
      }
      .bottom-nav a .nav-icon {
        font-size: 18px;
      }
      .channel-grid {
        grid-template-columns: 1fr;
      }
      .apply-form input,
      .apply-form select {
        min-width: 100%;
      }
    }

/* roulang page: category6 */
:root {
            --primary: #0DF5C2;
            --secondary: #FF2F7E;
            --highlight: #F6FF5B;
            --bg-main: #070B12;
            --bg-secondary: #0D1521;
            --surface: #111B2C;
            --text-primary: #EAF7F4;
            --text-secondary: #9FB3C8;
            --text-disabled: #5E7085;
            --border-primary: rgba(13, 245, 194, 0.16);
            --border-secondary: rgba(255, 47, 126, 0.18);
            --radius-xl: 24px;
            --radius-lg: 18px;
            --radius-pill: 999px;
            --shadow-default: 0 16px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 56px rgba(0, 0, 0, 0.5);
            --font-title: 'HarmonyOS Sans SC', 'MiSans', 'OPPO Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-num: 'DIN Alternate', 'Roboto Mono', 'Courier New', monospace;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }
        body {
            font-family: var(--font-title);
            background-color: var(--bg-main);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 72px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
            border: none;
            background: transparent;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-primary);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #070B12;
            flex-shrink: 0;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .desktop-nav a {
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
        }
        .desktop-nav a:hover,
        .desktop-nav a:focus {
            color: var(--primary);
            transform: translateY(-1px);
        }
        .desktop-nav a.active {
            color: var(--primary);
            position: relative;
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -6px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(13, 245, 194, 0.6);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 14px;
            letter-spacing: 0.02em;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .header-cta:hover,
        .header-cta:focus {
            box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
            transform: translateY(-1px);
        }
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            transition: var(--transition);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: var(--transition);
        }
        .hamburger:hover,
        .hamburger:focus {
            border-color: var(--primary);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 990;
            background: rgba(7, 11, 18, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 14px 16px;
            border-radius: 14px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mobile-drawer a.active {
            color: var(--primary);
            border-color: var(--primary);
        }
        .mobile-drawer a:hover {
            color: var(--primary);
            border-color: var(--primary);
        }
        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover,
        .breadcrumb a:focus {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-disabled);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        /* Sections */
        main {
            padding-top: 96px;
        }
        section {
            padding: 48px 0;
            border-bottom: 1px solid var(--border-primary);
        }
        section:last-of-type {
            border-bottom: none;
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-title {
            font-size: 30px;
            line-height: 1.2;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .section-lead {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 22px;
            }
            .section-lead {
                font-size: 14px;
            }
        }
        /* Category hero */
        .category-hero {
            padding: 40px 0 28px;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-primary);
        }
        .category-hero .container {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .category-hero .hero-text h1 {
            font-size: 36px;
            line-height: 1.2;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .category-hero .hero-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .category-hero .hero-cover {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            border: 1px solid var(--border-primary);
        }
        @media (max-width: 768px) {
            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-hero .hero-text h1 {
                font-size: 28px;
            }
            .category-hero .hero-text p {
                font-size: 14px;
            }
        }
        /* Filter bar */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 28px;
        }
        .filter-chip {
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }
        .filter-chip:hover,
        .filter-chip:focus {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-chip.active {
            background: var(--primary);
            color: #070B12;
            border-color: var(--primary);
            font-weight: 700;
        }
        .sort-select {
            margin-left: auto;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            background: var(--surface);
            border: 1px solid var(--border-primary);
            color: var(--text-primary);
            font-size: 14px;
        }
        .sort-select:hover {
            border-color: var(--primary);
        }
        @media (max-width: 520px) {
            .sort-select {
                margin-left: 0;
                width: 100%;
            }
        }
        /* Gear cards */
        .gear-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .gear-card {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            padding: 22px;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .gear-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-4px);
        }
        .gear-card .gear-icon {
            font-size: 32px;
            margin-bottom: 12px;
            display: inline-block;
        }
        .gear-card h3 {
            font-size: 20px;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .gear-card .gear-type {
            font-size: 14px;
            color: var(--text-disabled);
            margin-bottom: 16px;
        }
        .gear-param {
            margin-bottom: 14px;
        }
        .gear-param .param-label {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .gear-param .param-value {
            font-family: var(--font-num);
            color: var(--primary);
            font-weight: 700;
        }
        .param-bar {
            width: 100%;
            height: 8px;
            background: var(--bg-secondary);
            border-radius: 4px;
            overflow: hidden;
        }
        .param-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, #0DF5C2, #1CB5E0);
            transition: width 0.8s ease;
        }
        .gear-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 12px;
            border-radius: var(--radius-pill);
            background: rgba(13, 245, 194, 0.1);
            border: 1px solid var(--border-primary);
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            font-family: var(--font-num);
            margin-top: 4px;
        }
        .gear-badge.negative {
            background: rgba(255, 47, 126, 0.1);
            border-color: var(--border-secondary);
            color: var(--secondary);
        }
        @media (max-width: 1024px) {
            .gear-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .gear-grid {
                grid-template-columns: 1fr;
            }
        }
        /* Rank list */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            transition: var(--transition);
        }
        .rank-item:hover {
            border-color: var(--primary);
            transform: translateX(4px);
        }
        .rank-pos {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--bg-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-family: var(--font-num);
            color: var(--text-secondary);
            flex-shrink: 0;
        }
        .rank-item:first-child .rank-pos {
            background: var(--primary);
            color: #070B12;
        }
        .rank-name {
            flex: 1;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
        }
        .rank-value {
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
        }
        .rank-note {
            font-size: 14px;
            color: var(--text-disabled);
        }
        /* Article list */
        .article-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .article-card {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-4px);
        }
        .article-cover {
            height: 140px;
            overflow: hidden;
        }
        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .article-card:hover .article-cover img {
            transform: scale(1.03);
        }
        .article-body {
            padding: 16px 18px;
        }
        .article-tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            background: rgba(13, 245, 194, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 8px;
        }
        .article-card h3 {
            font-size: 18px;
            line-height: 1.4;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .article-meta {
            font-size: 13px;
            color: var(--text-disabled);
            display: flex;
            justify-content: space-between;
        }
        @media (max-width: 1024px) {
            .article-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .article-list {
                grid-template-columns: 1fr;
            }
        }
        /* Scenario grid */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .scenario-card {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 14px;
            transition: var(--transition);
            min-height: 120px;
        }
        .scenario-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .scenario-card span {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
        }
        .scenario-arrow {
            align-self: flex-end;
            color: var(--primary);
            font-size: 20px;
            font-weight: 700;
        }
        @media (max-width: 1024px) {
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            padding: 18px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover,
        .faq-question:focus {
            color: var(--primary);
        }
        .faq-icon {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding-bottom: 18px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        /* CTA section */
        .cta-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-primary);
            padding: 40px;
            margin: 0 0 48px 0;
        }
        .cta-section .container {
            padding: 0;
        }
        .cta-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .cta-text h2 {
            font-size: 26px;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .cta-text p {
            font-size: 16px;
            color: var(--text-secondary);
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta-form input,
        .cta-form select {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-pill);
            background: rgba(7, 11, 18, 0.6);
            border: 1px solid var(--border-primary);
            color: var(--text-primary);
            font-size: 14px;
            transition: var(--transition);
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(13, 245, 194, 0.15);
        }
        .cta-form button {
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            background: linear-gradient(135deg, #0DF5C2, #1CB5E0);
            color: #070B12;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            transition: var(--transition);
        }
        .cta-form button:hover,
        .cta-form button:focus {
            box-shadow: 0 0 24px rgba(13, 245, 194, 0.4);
            transform: translateY(-1px);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 24px;
            }
            .cta-box {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-text h2 {
                font-size: 22px;
            }
        }
        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-primary);
            padding: 48px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col h3 {
            font-size: 16px;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .footer-col a:hover,
        .footer-col a:focus {
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-primary);
            font-size: 14px;
            color: var(--text-disabled);
        }
        .footer-bottom .domain {
            font-family: var(--font-num);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }
        }
        /* Mobile tabbar */
        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 11, 18, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-primary);
            padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
            justify-content: space-around;
            align-items: center;
        }
        .mobile-tabbar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            font-size: 10px;
            color: var(--text-secondary);
            transition: var(--transition);
            padding: 4px 2px;
            flex: 1;
            min-width: 0;
        }
        .mobile-tabbar a .tab-icon {
            font-size: 20px;
            line-height: 1;
        }
        .mobile-tabbar a.active {
            color: var(--primary);
        }
        .mobile-tabbar a.active .tab-icon {
            color: var(--primary);
        }
        @media (max-width: 767px) {
            .mobile-tabbar {
                display: flex;
            }
            .desktop-nav,
            .header-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            body {
                padding-bottom: 72px;
            }
        }
        @media (min-width: 768px) {
            .mobile-tabbar {
                display: none;
            }
            .hamburger {
                display: none;
            }
            .mobile-drawer {
                display: none;
            }
        }