/* roulang page: index */
:root {
            --color-primary: #00C2FF;
            --color-primary-soft: rgba(0, 194, 255, 0.1);
            --color-primary-glow: rgba(0, 194, 255, 0.5);
            --color-accent: #FFB300;
            --color-accent-deep: #FF8C00;
            --color-magenta: #E040FB;
            --color-bg-0: #0A0E1A;
            --color-bg-1: #0D1428;
            --color-bg-2: #101A30;
            --color-bg-card: #111C34;
            --color-text: #F0F4FA;
            --color-text-soft: rgba(240, 244, 250, 0.78);
            --color-text-muted: rgba(240, 244, 250, 0.55);
            --color-border: rgba(0, 194, 255, 0.14);
            --color-border-strong: rgba(0, 194, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.5);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --section-pad: 72px 0;
            --container-max: 1200px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg-0);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        ::selection {
            background: rgba(0, 194, 255, 0.3);
            color: #fff;
        }

        :focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text);
        }
        .logo:hover {
            color: var(--color-primary);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--color-text-muted);
        }
        .brand-actions .icon-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.03);
            transition: all var(--transition);
            font-size: 0.9rem;
            color: var(--color-text-soft);
        }
        .brand-actions .icon-btn:hover {
            border-color: var(--color-primary);
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }
        .brand-actions .login-btn {
            padding: 8px 16px;
            border-radius: 8px;
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 0.875rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
        }
        .brand-actions .login-btn:hover {
            background: #2ccfff;
            box-shadow: 0 0 14px var(--color-primary-glow);
            color: var(--color-bg-0);
        }

        .channel-nav-row {
            display: flex;
            align-items: center;
            height: 52px;
            border-top: 1px solid rgba(0, 194, 255, 0.07);
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-strong) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .channel-nav-row::-webkit-scrollbar {
            height: 3px;
        }
        .channel-nav-row::-webkit-scrollbar-thumb {
            background: var(--color-border-strong);
            border-radius: 99px;
        }
        .channel-label {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            flex-shrink: 0;
            padding-right: 4px;
            font-weight: 600;
        }
        .channel-tag {
            flex-shrink: 0;
            padding: 6px 18px;
            border-radius: 99px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-soft);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .channel-tag:hover {
            color: var(--color-primary);
            background: var(--color-primary-soft);
            border-color: var(--color-border-strong);
        }
        .channel-tag.active {
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
        }
        .channel-tag.active:hover {
            color: var(--color-bg-0);
            box-shadow: 0 0 16px var(--color-primary-glow);
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: var(--color-bg-0);
        }
        .btn-primary:hover {
            background: #2ccfff;
            box-shadow: 0 0 16px var(--color-primary-glow);
            color: var(--color-bg-0);
            transform: translateY(-1px);
        }
        .btn-accent {
            background: var(--color-accent);
            color: var(--color-bg-0);
        }
        .btn-accent:hover {
            background: #ffc42e;
            box-shadow: 0 0 16px rgba(255, 179, 0, 0.5);
            color: var(--color-bg-0);
            transform: scale(1.02);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary-soft);
            border-color: var(--color-primary);
            box-shadow: 0 0 10px var(--color-primary-glow);
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 1.05rem;
            border-radius: 10px;
        }
        .btn-block {
            width: 100%;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 500px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-position: 65% center;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(10, 14, 26, 0.95) 0%, rgba(10, 14, 26, 0.85) 35%, rgba(10, 14, 26, 0.4) 70%, rgba(10, 14, 26, 0.25) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 30%, rgba(0, 194, 255, 0.18) 0%, transparent 55%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 64px 0 72px;
            width: 100%;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 99px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(0, 194, 255, 0.12);
            border: 1px solid var(--color-border-strong);
            color: var(--color-primary);
            letter-spacing: 0.03em;
        }
        .hero h1 {
            font-size: clamp(1.9rem, 4.5vw, 3rem);
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: 0.01em;
            margin-bottom: 16px;
            max-width: 640px;
            color: #fff;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }
        .hero h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }
        .hero-sub {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--color-text-soft);
            max-width: 550px;
            margin-bottom: 28px;
            letter-spacing: 0.01em;
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .hero-countdown {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            background: rgba(0, 0, 0, 0.5);
            border: 1px solid var(--color-border);
            max-width: 480px;
            backdrop-filter: blur(6px);
        }
        .countdown-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            flex-shrink: 0;
            font-weight: 600;
        }
        .countdown-digits {
            display: flex;
            gap: 10px;
        }
        .countdown-unit {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
        }
        .countdown-unit .num {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            font-variant-numeric: tabular-nums;
        }
        .countdown-unit .label {
            font-size: 0.7rem;
            color: var(--color-text-muted);
            letter-spacing: 0.05em;
        }
        .hero-quick-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 8px;
        }
        .hero-quick-link {
            padding: 6px 16px;
            border-radius: 99px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text-soft);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
        }
        .hero-quick-link:hover {
            background: rgba(0, 194, 255, 0.15);
            color: var(--color-primary);
            border-color: var(--color-border-strong);
        }

        /* ========== Section Common ========== */
        .section {
            padding: var(--section-pad);
        }
        .section-alt {
            background: var(--color-bg-1);
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 44px;
        }
        .section-header.left {
            text-align: left;
            margin-left: 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .section-title {
            font-size: clamp(1.4rem, 3vw, 2rem);
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--color-text-soft);
            margin-bottom: 0;
        }

        /* ========== Metrics ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .metric-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition);
        }
        .metric-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--color-primary);
            border-radius: 0 2px 2px 0;
        }
        .metric-card:hover {
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .metric-card .metric-num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            margin-bottom: 6px;
        }
        .metric-card .metric-num .unit {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-left: 2px;
        }
        .metric-card .metric-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-soft);
            margin-bottom: 8px;
        }
        .metric-trend {
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .metric-trend.up {
            color: #4ade80;
        }
        .metric-trend.down {
            color: #f87171;
        }
        .metric-card .metric-note {
            font-size: 0.72rem;
            color: var(--color-text-muted);
            margin-top: 6px;
        }

        /* ========== Service Matrix / Cards ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .service-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            position: relative;
        }
        .service-card:hover {
            border-color: rgba(0, 194, 255, 0.5);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .service-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .service-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .service-card:hover .card-cover img {
            transform: scale(1.03);
        }
        .service-card .card-cover .cover-tags {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .service-card .cover-tag {
            padding: 4px 10px;
            border-radius: 99px;
            font-size: 0.7rem;
            font-weight: 700;
            background: rgba(0, 0, 0, 0.65);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            letter-spacing: 0.03em;
        }
        .service-card .cover-tag.hot {
            background: rgba(255, 140, 0, 0.8);
            border-color: rgba(255, 179, 0, 0.5);
        }
        .service-card .cover-tag.rare {
            background: rgba(224, 64, 251, 0.7);
            border-color: rgba(224, 64, 251, 0.4);
        }
        .service-card .card-body {
            padding: 18px 16px 20px;
        }
        .service-card .card-title-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 8px;
            gap: 8px;
        }
        .service-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.4;
        }
        .service-card .star-rating {
            display: flex;
            gap: 2px;
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--color-accent);
        }
        .service-card .star-rating .star-dim {
            color: rgba(255, 179, 0, 0.25);
        }
        .service-card .card-desc {
            font-size: 0.85rem;
            line-height: 1.7;
            color: var(--color-text-soft);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .service-card .card-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .service-card .card-tag {
            padding: 4px 12px;
            border-radius: 99px;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(0, 194, 255, 0.08);
            border: 1px solid var(--color-border);
            color: var(--color-text-soft);
            letter-spacing: 0.02em;
            transition: all var(--transition);
        }
        .service-card .card-tag:hover {
            background: rgba(0, 194, 255, 0.16);
            color: var(--color-primary);
            border-color: var(--color-border-strong);
        }

        /* ========== Compare ========== */
        .compare-wrapper {
            display: grid;
            grid-template-columns: 1fr 60px 1fr;
            gap: 16px;
            align-items: stretch;
        }
        .compare-panel {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
        }
        .compare-panel:hover {
            border-color: var(--color-border-strong);
        }
        .compare-panel.highlight {
            border-color: rgba(0, 194, 255, 0.5);
            box-shadow: 0 0 24px rgba(0, 194, 255, 0.08);
        }
        .compare-panel .compare-panel-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            text-align: center;
        }
        .compare-item {
            margin-bottom: 16px;
        }
        .compare-item:last-child {
            margin-bottom: 0;
        }
        .compare-item .compare-dim {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--color-text-soft);
            font-weight: 600;
            margin-bottom: 6px;
        }
        .compare-item .compare-val {
            font-variant-numeric: tabular-nums;
            color: var(--color-accent);
            font-weight: 700;
        }
        .compare-bar {
            height: 8px;
            border-radius: 99px;
            background: rgba(255, 255, 255, 0.07);
            overflow: hidden;
        }
        .compare-bar .bar-fill {
            height: 100%;
            border-radius: 99px;
            transition: width 0.6s ease;
        }
        .compare-bar .bar-fill.primary-fill {
            background: linear-gradient(90deg, var(--color-primary), #6de0ff);
        }
        .compare-bar .bar-fill.accent-fill {
            background: linear-gradient(90deg, var(--color-accent-deep), var(--color-accent));
        }
        .compare-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 900;
            color: var(--color-accent);
            letter-spacing: 0.04em;
        }
        .compare-note {
            text-align: center;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 16px;
            letter-spacing: 0.03em;
        }

        /* ========== Topics ========== */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .topic-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .topic-card:hover {
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .topic-card .topic-icon {
            font-size: 1.6rem;
            margin-bottom: 10px;
        }
        .topic-card .topic-name {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .topic-card .topic-desc {
            font-size: 0.82rem;
            color: var(--color-text-soft);
            line-height: 1.65;
        }
        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            margin-top: 20px;
        }
        .topic-tag-link {
            padding: 6px 16px;
            border-radius: 99px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(0, 194, 255, 0.07);
            border: 1px solid var(--color-border);
            color: var(--color-text-soft);
            transition: all var(--transition);
        }
        .topic-tag-link:hover {
            background: rgba(0, 194, 255, 0.16);
            color: var(--color-primary);
            border-color: var(--color-border-strong);
        }

        /* ========== Steps ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .step-card {
            text-align: center;
            padding: 26px 18px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover {
            border-color: var(--color-border-strong);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            font-size: 1.1rem;
            font-weight: 800;
            background: var(--color-primary);
            color: var(--color-bg-0);
            margin-bottom: 12px;
        }
        .step-card .step-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .step-card .step-desc {
            font-size: 0.8rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        /* ========== Security ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .security-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 24px 16px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            gap: 8px;
        }
        .security-card:hover {
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-card);
        }
        .security-card .sec-icon {
            font-size: 1.7rem;
            margin-bottom: 4px;
        }
        .security-card .sec-name {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
        }
        .security-card .sec-desc {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        /* ========== Reviews ========== */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .review-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: all var(--transition);
        }
        .review-card:hover {
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-card);
        }
        .review-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 0.9rem;
            color: #fff;
        }
        .review-user .avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 800;
            color: var(--color-bg-0);
        }
        .review-stars {
            color: var(--color-accent);
            font-size: 0.8rem;
        }
        .review-text {
            font-size: 0.85rem;
            line-height: 1.7;
            color: var(--color-text-soft);
        }

        /* ========== News List ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.8fr 1fr;
            gap: 28px;
        }
        .news-main-list .news-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(0, 194, 255, 0.08);
            transition: all var(--transition);
            cursor: pointer;
        }
        .news-main-list .news-item:hover {
            padding-left: 8px;
        }
        .news-main-list .news-item:last-child {
            border-bottom: none;
        }
        .news-item .news-thumb {
            width: 72px;
            height: 52px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.45;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-meta {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .news-item .news-desc {
            font-size: 0.8rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin-top: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-sidebar {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            height: fit-content;
        }
        .news-sidebar .sidebar-title {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(0, 194, 255, 0.1);
        }
        .news-sidebar .side-item {
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 0.85rem;
            color: var(--color-text-soft);
            cursor: pointer;
            transition: color var(--transition);
            line-height: 1.5;
        }
        .news-sidebar .side-item:hover {
            color: var(--color-primary);
        }
        .news-sidebar .side-item:last-child {
            border-bottom: none;
        }
        .news-sidebar .side-badge {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 99px;
            font-size: 0.65rem;
            font-weight: 700;
            background: rgba(0, 194, 255, 0.12);
            color: var(--color-primary);
            margin-right: 6px;
        }

        /* ========== Brand Intro ========== */
        .brand-intro-card {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
            align-items: center;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            position: relative;
            overflow: hidden;
        }
        .brand-intro-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
        }
        .brand-intro-card .intro-text h3 {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .brand-intro-card .intro-text p {
            font-size: 0.95rem;
            line-height: 1.85;
            color: var(--color-text-soft);
            margin-bottom: 12px;
        }
        .brand-intro-card .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .brand-intro-card .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border-strong);
        }
        .faq-item.open {
            border-color: rgba(0, 194, 255, 0.45);
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.06);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
            gap: 12px;
            user-select: none;
            transition: all var(--transition);
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-q-badge {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(0, 194, 255, 0.12);
            color: var(--color-primary);
            font-weight: 800;
            font-size: 0.8rem;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 1.2rem;
            color: var(--color-text-muted);
            transition: transform 0.3s ease;
            width: 24px;
            text-align: center;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.88rem;
            line-height: 1.8;
            color: var(--color-text-soft);
            border-top: 1px solid rgba(0, 194, 255, 0.08);
            padding-top: 14px;
        }

        /* ========== CTA / Form ========== */
        .cta-section {
            background: linear-gradient(180deg, rgba(255, 140, 0, 0.12) 0%, rgba(0, 0, 0, 0) 100%);
            padding: 64px 0 72px;
        }
        .cta-form-card {
            max-width: 560px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .cta-form-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
        }
        .cta-form-card .form-title {
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 6px;
            text-align: center;
        }
        .cta-form-card .form-sub {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            text-align: center;
            margin-bottom: 22px;
            line-height: 1.6;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-text-soft);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--color-border);
            color: #fff;
            font-size: 0.9rem;
            transition: all var(--transition);
            resize: vertical;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--color-text-muted);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.25);
            background: rgba(0, 194, 255, 0.04);
        }
        .form-trust {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.72rem;
            color: var(--color-text-muted);
            text-align: center;
            margin-top: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .form-trust span {
            display: inline-flex;
            align-items: center;
            gap: 3px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #070B14;
            border-top: 1px solid rgba(0, 194, 255, 0.08);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .footer-logo .logo-mark {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            font-size: 0.9rem;
        }
        .footer-brand p {
            font-size: 0.82rem;
            line-height: 1.75;
            color: var(--color-text-muted);
        }
        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(0, 194, 255, 0.06);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .footer-bottom .footer-links a {
            color: var(--color-text-muted);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-beian {
            font-size: 0.7rem;
            color: var(--color-text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .compare-wrapper {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .compare-vs {
                transform: rotate(90deg);
                padding: 4px 0;
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .brand-intro-card {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 48px 0;
            }
            .brand-row {
                height: 52px;
            }
            .channel-nav-row {
                height: 44px;
                gap: 4px;
            }
            .channel-tag {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .hero {
                min-height: 420px;
                background-position: 55% center;
            }
            .hero-content {
                padding: 40px 0 48px;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .hero-sub {
                font-size: 0.9rem;
                line-height: 1.7;
            }
            .hero-countdown {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .countdown-unit .num {
                font-size: 1.1rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .section-header {
                margin-bottom: 30px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metric-card {
                padding: 16px 14px;
            }
            .metric-card .metric-num {
                font-size: 1.5rem;
            }
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .cta-form-card {
                padding: 24px 18px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.88rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .brand-actions .login-btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .brand-actions .icon-btn {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .hero {
                min-height: 380px;
            }
            .hero h1 {
                font-size: 1.4rem;
            }
            .hero-cta-row {
                flex-direction: column;
                gap: 10px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 12px 10px;
            }
            .metric-card .metric-num {
                font-size: 1.3rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .news-main-list .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-item .news-thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16/8;
                border-radius: var(--radius-sm);
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #00C2FF;
            --color-primary-soft: rgba(0, 194, 255, 0.1);
            --color-primary-glow: rgba(0, 194, 255, 0.5);
            --color-accent: #FFB300;
            --color-accent-deep: #FF8C00;
            --color-magenta: #E040FB;
            --color-bg-0: #0A0E1A;
            --color-bg-1: #0D1428;
            --color-bg-2: #101A30;
            --color-bg-card: #111C34;
            --color-text: #F0F4FA;
            --color-text-soft: rgba(240, 244, 250, 0.78);
            --color-text-muted: rgba(240, 244, 250, 0.55);
            --color-border: rgba(0, 194, 255, 0.14);
            --color-border-strong: rgba(0, 194, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.5);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --section-pad: 72px 0;
            --container-max: 1200px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg-0);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text);
        }
        .logo:hover {
            color: var(--color-primary);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--color-text-muted);
        }
        .brand-actions .icon-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.03);
            transition: all var(--transition);
            font-size: 0.9rem;
            color: var(--color-text-soft);
        }
        .brand-actions .icon-btn:hover {
            border-color: var(--color-primary);
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }
        .brand-actions .login-btn {
            padding: 8px 16px;
            border-radius: 8px;
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 0.875rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
        }
        .brand-actions .login-btn:hover {
            background: #2ccfff;
            box-shadow: 0 0 14px var(--color-primary-glow);
            color: var(--color-bg-0);
        }
        .channel-nav-row {
            display: flex;
            align-items: center;
            height: 52px;
            border-top: 1px solid rgba(0, 194, 255, 0.07);
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-strong) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .channel-nav-row::-webkit-scrollbar {
            height: 3px;
        }
        .channel-nav-row::-webkit-scrollbar-thumb {
            background: var(--color-border-strong);
            border-radius: 99px;
        }
        .channel-label {
            flex-shrink: 0;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            padding-right: 4px;
        }
        .channel-tag {
            flex-shrink: 0;
            padding: 6px 18px;
            border-radius: 99px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-soft);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .channel-tag:hover {
            color: var(--color-primary);
            background: var(--color-primary-soft);
        }
        .channel-tag.active {
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
        }
        .channel-tag.active:hover {
            color: var(--color-bg-0);
            background: #2ccfff;
            box-shadow: 0 0 14px var(--color-primary-glow);
        }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
            line-height: 1.5;
            border: 1.5px solid transparent;
        }
        .btn-primary {
            background: var(--color-primary);
            color: var(--color-bg-0);
            border-color: var(--color-primary);
        }
        .btn-primary:hover {
            background: #2ccfff;
            border-color: #2ccfff;
            box-shadow: 0 0 16px var(--color-primary-glow);
            color: var(--color-bg-0);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--color-accent);
            color: var(--color-bg-0);
            border-color: var(--color-accent);
        }
        .btn-accent:hover {
            background: #ffc42e;
            border-color: #ffc42e;
            box-shadow: 0 0 16px rgba(255, 179, 0, 0.45);
            color: var(--color-bg-0);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--color-border-strong);
            color: var(--color-primary);
        }
        .btn-outline:hover {
            background: var(--color-primary-soft);
            border-color: var(--color-primary);
            box-shadow: 0 0 12px rgba(0, 194, 255, 0.25);
            color: var(--color-primary);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: 10px;
        }

        /* ========== Sections ========== */
        .section {
            padding: var(--section-pad);
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--color-text-soft);
            max-width: 680px;
            line-height: 1.8;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center p {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== category Hero ========== */
        .category-hero {
            position: relative;
            padding: 64px 0 56px;
            background: linear-gradient(180deg, rgba(10, 14, 26, 0.5) 0%, var(--color-bg-0) 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            opacity: 0.18;
            z-index: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(10, 14, 26, 0.92) 0%, rgba(10, 14, 26, 0.55) 50%, rgba(10, 14, 26, 0.85) 100%);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 99px;
            background: var(--color-primary-soft);
            border: 1px solid var(--color-border-strong);
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 16px;
        }
        .category-hero h1 {
            font-size: 2.5rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: var(--color-text);
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .category-hero h1 .highlight {
            color: var(--color-primary);
        }
        .category-hero p {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            max-width: 640px;
            line-height: 1.85;
            margin-bottom: 28px;
        }
        .category-hero-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========== Live Card Grid ========== */
        .live-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .live-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .live-card:hover {
            border-color: rgba(0, 194, 255, 0.5);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .live-card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-bg-2);
        }
        .live-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .live-card:hover .live-card-cover img {
            transform: scale(1.04);
        }
        .live-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 99px;
            background: rgba(10, 14, 26, 0.8);
            border: 1px solid var(--color-border-strong);
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.03em;
        }
        .live-card-badge.live {
            background: rgba(255, 60, 60, 0.75);
            border-color: rgba(255, 80, 80, 0.6);
            color: #fff;
            animation: livePulse 2s infinite;
        }
        @keyframes livePulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(255, 60, 60, 0.4); }
            50% { box-shadow: 0 0 0 6px rgba(255, 60, 60, 0); }
        }
        .live-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .live-card-title-row {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 10px;
        }
        .live-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
        }
        .live-card-rating {
            flex-shrink: 0;
            font-size: 0.72rem;
            font-weight: 800;
            padding: 3px 10px;
            border-radius: 6px;
            background: rgba(0, 194, 255, 0.12);
            color: var(--color-primary);
            letter-spacing: 0.04em;
        }
        .live-card-rating.s {
            background: rgba(255, 179, 0, 0.15);
            color: var(--color-accent);
        }
        .live-card-rating.a {
            background: rgba(0, 194, 255, 0.12);
            color: var(--color-primary);
        }
        .live-card-rating.magenta {
            background: rgba(224, 64, 251, 0.12);
            color: var(--color-magenta);
        }
        .live-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .tag {
            padding: 3px 12px;
            border-radius: 99px;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--color-text-soft);
            white-space: nowrap;
        }
        .tag.primary {
            background: var(--color-primary-soft);
            border-color: var(--color-border-strong);
            color: var(--color-primary);
        }
        .tag.accent {
            background: rgba(255, 179, 0, 0.12);
            border-color: rgba(255, 179, 0, 0.3);
            color: var(--color-accent);
        }
        .live-card-desc {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .live-card-meta {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }
        .live-card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .live-card-meta .meta-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-primary);
        }
        .live-card-meta .meta-dot.green {
            background: #2ecc71;
        }
        .live-card-meta .meta-dot.accent {
            background: var(--color-accent);
        }

        /* ========== Stats Strip ========== */
        .stats-strip {
            padding: 36px 0;
            background: var(--color-bg-1);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            padding: 18px 20px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            border-left: 3px solid var(--color-primary);
            transition: all var(--transition);
        }
        .stat-item:hover {
            border-left-color: var(--color-accent);
            box-shadow: var(--shadow-card);
        }
        .stat-number {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--color-text);
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .stat-number .unit {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }
        .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 700;
            color: #2ecc71;
            margin-top: 6px;
        }
        .stat-trend.down {
            color: #e74c3c;
        }

        /* ========== Feature Blocks ========== */
        .feature-block {
            padding: var(--section-pad);
            background: var(--color-bg-0);
        }
        .feature-block.alt {
            background: var(--color-bg-1);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .feature-item {
            display: flex;
            gap: 16px;
            padding: 24px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
        }
        .feature-item:hover {
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-card);
        }
        .feature-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary-soft);
            border: 1px solid var(--color-border-strong);
            font-size: 1.4rem;
        }
        .feature-content h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .feature-content p {
            font-size: 0.875rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        /* ========== Pagination ========== */
        .pagination-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 36px 0 12px;
            flex-wrap: wrap;
        }
        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 8px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-soft);
            transition: all var(--transition);
        }
        .page-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-soft);
        }
        .page-btn.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
        }
        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--section-pad);
            background: var(--color-bg-1);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            background: var(--color-bg-card);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border-strong);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            color: var(--color-text);
            font-size: 0.95rem;
            gap: 12px;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary-soft);
            border: 1px solid var(--color-border-strong);
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 0.875rem;
            color: var(--color-text-soft);
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* ========== CTA Form ========== */
        .cta-section {
            padding: var(--section-pad);
            background: linear-gradient(180deg, var(--color-bg-1) 0%, var(--color-bg-0) 100%);
        }
        .cta-card {
            max-width: 560px;
            margin: 0 auto;
            padding: 36px 32px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-hover);
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
        }
        .cta-card h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .cta-card > p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-text-soft);
            margin-bottom: 6px;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .form-control::placeholder {
            color: var(--color-text-muted);
        }
        .form-control:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.15);
        }
        .form-submit {
            width: 100%;
            padding: 14px 20px;
            background: var(--color-accent);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 8px;
            transition: all var(--transition);
            letter-spacing: 0.03em;
        }
        .form-submit:hover {
            background: #ffc42e;
            box-shadow: 0 0 18px rgba(255, 179, 0, 0.45);
            transform: translateY(-2px);
        }
        .form-note {
            margin-top: 14px;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            text-align: center;
            line-height: 1.6;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #080C16;
            border-top: 1px solid var(--color-border);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }
        .footer-links {
            display: flex;
            gap: 16px;
        }
        .footer-links a {
            color: var(--color-text-muted);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.75rem;
        }
        .footer-beian span {
            color: var(--color-text-muted);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .live-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 48px 0;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .live-card-grid {
                grid-template-columns: 1fr;
            }
            .brand-row {
                height: 54px;
            }
            .channel-nav-row {
                height: 46px;
                gap: 4px;
            }
            .channel-tag {
                padding: 5px 12px;
                font-size: 0.8rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-hero {
                padding: 44px 0 36px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero p {
                font-size: 0.9rem;
            }
            .cta-card {
                padding: 24px 18px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #00C2FF;
            --color-primary-soft: rgba(0, 194, 255, 0.1);
            --color-primary-glow: rgba(0, 194, 255, 0.5);
            --color-accent: #FFB300;
            --color-accent-deep: #FF8C00;
            --color-magenta: #E040FB;
            --color-bg-0: #0A0E1A;
            --color-bg-1: #0D1428;
            --color-bg-2: #101A30;
            --color-bg-card: #111C34;
            --color-text: #F0F4FA;
            --color-text-soft: rgba(240, 244, 250, 0.78);
            --color-text-muted: rgba(240, 244, 250, 0.55);
            --color-border: rgba(0, 194, 255, 0.14);
            --color-border-strong: rgba(0, 194, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.5);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --section-pad: 64px 0;
            --container-max: 1200px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg-0);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        h1,
        h2,
        h3,
        h4 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
        }

        p {
            margin: 0;
        }

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

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

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text);
        }

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

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--color-text-muted);
        }

        .brand-actions .icon-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.03);
            transition: all var(--transition);
            font-size: 0.9rem;
            color: var(--color-text-soft);
        }

        .brand-actions .icon-btn:hover {
            border-color: var(--color-primary);
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .brand-actions .login-btn {
            padding: 8px 16px;
            border-radius: 8px;
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 0.875rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
        }

        .brand-actions .login-btn:hover {
            background: #2ccfff;
            box-shadow: 0 0 14px var(--color-primary-glow);
            color: var(--color-bg-0);
        }

        .channel-nav-row {
            display: flex;
            align-items: center;
            height: 52px;
            border-top: 1px solid rgba(0, 194, 255, 0.07);
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-strong) transparent;
            -webkit-overflow-scrolling: touch;
        }

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

        .channel-nav-row::-webkit-scrollbar-thumb {
            background: var(--color-border-strong);
            border-radius: 99px;
        }

        .channel-nav-row .channel-label {
            flex-shrink: 0;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-text-muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-right: 4px;
        }

        .channel-tag {
            flex-shrink: 0;
            padding: 6px 18px;
            border-radius: 99px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-soft);
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .channel-tag:hover {
            color: var(--color-primary);
            background: rgba(0, 194, 255, 0.06);
        }

        .channel-tag.active {
            background: var(--color-primary-soft);
            color: var(--color-primary);
            box-shadow: inset 0 0 0 1px rgba(0, 194, 255, 0.25);
        }

        .channel-tag.active::after {
            content: '';
            position: absolute;
            bottom: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            border-radius: 99px;
            background: var(--color-primary);
            box-shadow: 0 0 8px var(--color-primary-glow);
        }

        /* ========== Category Hero ========== */
        .category-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--color-border);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(10, 14, 26, 0.95) 0%, rgba(10, 14, 26, 0.82) 45%, rgba(10, 14, 26, 0.4) 100%);
            z-index: 1;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .category-hero-content {
            max-width: 680px;
            padding: 48px 0;
        }

        .category-hero .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 16px;
        }

        .category-hero h1 {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            line-height: 1.25;
            color: var(--color-text);
        }

        .category-hero h1 .highlight {
            color: var(--color-primary);
            text-shadow: 0 0 20px var(--color-primary-glow);
        }

        .category-hero p {
            font-size: 1.05rem;
            color: var(--color-text-soft);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 580px;
        }

        .category-hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 10px;
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
            border: 1.5px solid var(--color-primary);
            box-shadow: 0 0 18px rgba(0, 194, 255, 0.25);
        }

        .btn-primary:hover {
            background: #2ccfff;
            box-shadow: 0 0 24px var(--color-primary-glow);
            color: var(--color-bg-0);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 10px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
            border: 1.5px solid var(--color-border-strong);
        }

        .btn-secondary:hover {
            background: rgba(0, 194, 255, 0.08);
            border-color: var(--color-primary);
            box-shadow: 0 0 16px rgba(0, 194, 255, 0.2);
            color: var(--color-primary);
        }

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

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

        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .section-header p {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            max-width: 640px;
        }

        /* ========== Stats Board ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .stat-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition);
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--color-primary);
            border-radius: 0 2px 2px 0;
        }

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

        .stat-card .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text);
            line-height: 1.2;
            margin-bottom: 4px;
            font-variant-numeric: tabular-nums;
        }

        .stat-card .stat-value .unit {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-left: 2px;
        }

        .stat-card .stat-name {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            font-weight: 500;
            margin-bottom: 6px;
        }

        .stat-card .stat-trend {
            font-size: 0.8rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .stat-card .stat-trend.up {
            color: #4ade80;
        }

        .stat-card .stat-trend.down {
            color: #f87171;
        }

        /* ========== Match Cards Grid ========== */
        .match-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

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

        .match-card .card-cover {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            flex-shrink: 0;
        }

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

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

        .match-card .card-cover .card-badges {
            position: absolute;
            top: 10px;
            left: 10px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            z-index: 1;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            background: rgba(10, 14, 26, 0.75);
            color: var(--color-text);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .badge.hot {
            background: rgba(255, 140, 0, 0.85);
            color: #fff;
            border-color: rgba(255, 140, 0, 0.5);
        }

        .badge.live {
            background: rgba(224, 64, 251, 0.8);
            color: #fff;
            border-color: rgba(224, 64, 251, 0.4);
        }

        .badge.premium {
            background: rgba(255, 179, 0, 0.85);
            color: var(--color-bg-0);
            border-color: rgba(255, 179, 0, 0.6);
        }

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

        .match-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .match-card .card-rating {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-bottom: 10px;
        }

        .match-card .card-rating .star {
            color: var(--color-accent);
            font-size: 0.85rem;
            letter-spacing: 1px;
        }

        .match-card .card-rating .star.empty {
            color: rgba(255, 255, 255, 0.2);
        }

        .match-card .card-rating .rating-label {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-left: 4px;
            font-weight: 500;
        }

        .match-card .card-summary {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            margin-bottom: 14px;
            flex: 1;
        }

        .match-card .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 99px;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--color-text-soft);
            background: rgba(0, 194, 255, 0.06);
            border: 1px solid rgba(0, 194, 255, 0.16);
            transition: all var(--transition);
        }

        .tag-pill:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-soft);
        }

        .match-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--color-primary);
            transition: all var(--transition);
            align-self: flex-start;
        }

        .match-card .card-link:hover {
            color: #2ccfff;
            gap: 10px;
        }

        /* ========== Comparison Section ========== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .comparison-panel {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
        }

        .comparison-panel:hover {
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-hover);
        }

        .comparison-panel .panel-title {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 18px;
            color: var(--color-text);
        }

        .comparison-panel .panel-title.before {
            color: var(--color-text-muted);
        }

        .comparison-panel .panel-title.after {
            color: var(--color-primary);
        }

        .comparison-metric {
            margin-bottom: 14px;
        }

        .comparison-metric .metric-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin-bottom: 6px;
            font-weight: 500;
        }

        .comparison-metric .metric-label .metric-value {
            font-weight: 700;
            color: var(--color-text);
        }

        .comparison-metric .metric-bar {
            width: 100%;
            height: 8px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 99px;
            overflow: hidden;
        }

        .comparison-metric .metric-bar .bar-fill {
            height: 100%;
            border-radius: 99px;
            background: var(--color-text-muted);
            transition: width 0.6s ease;
        }

        .comparison-panel.after .comparison-metric .metric-bar .bar-fill {
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
        }

        .comparison-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--color-accent);
            text-shadow: 0 0 12px rgba(255, 179, 0, 0.5);
        }

        .comparison-note {
            text-align: center;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 16px;
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text);
            gap: 12px;
            user-select: none;
            transition: color var(--transition);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(0, 194, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-primary);
            transition: all var(--transition);
            font-weight: 500;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--color-primary-soft);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-answer-inner {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.75;
            padding-bottom: 18px;
            border-top: 1px solid rgba(0, 194, 255, 0.08);
            padding-top: 14px;
        }

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

        /* ========== CTA Form ========== */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 194, 255, 0.06) 0%, rgba(255, 140, 0, 0.04) 60%, rgba(10, 14, 26, 0.95) 100%);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .cta-card {
            max-width: 560px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            border: 1px solid var(--color-border-strong);
            box-shadow: var(--shadow-card);
        }

        .cta-card h2 {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 8px;
            text-align: center;
        }

        .cta-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            text-align: center;
            margin-bottom: 24px;
            line-height: 1.65;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-soft);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--color-text);
            font-size: 0.95rem;
            transition: all var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.12);
            background: rgba(255, 255, 255, 0.06);
        }

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

        .form-submit {
            width: 100%;
            padding: 14px 28px;
            border-radius: 10px;
            background: var(--color-accent);
            color: var(--color-bg-0);
            font-weight: 800;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            margin-top: 8px;
            border: 1.5px solid var(--color-accent);
        }

        .form-submit:hover {
            background: #ffc63d;
            box-shadow: 0 0 20px rgba(255, 179, 0, 0.4);
            transform: translateY(-1px);
        }

        .form-note {
            text-align: center;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 12px;
        }

        /* ========== Pagination ========== */
        .pagination-section {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .pagination-btn {
            padding: 10px 18px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: var(--color-bg-card);
            color: var(--color-text-soft);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            min-width: 42px;
            text-align: center;
        }

        .pagination-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-soft);
        }

        .pagination-btn.active {
            background: var(--color-primary);
            color: var(--color-bg-0);
            border-color: var(--color-primary);
            font-weight: 700;
        }

        .pagination-btn.arrow {
            padding: 10px 14px;
        }

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

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

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-mark {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            font-size: 1rem;
            font-weight: 900;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li a,
        .footer-col ul li span {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(0, 194, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

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

        .footer-bottom .footer-links a {
            color: var(--color-text-muted);
            font-size: 0.8rem;
            transition: color var(--transition);
        }

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

        .footer-beian {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .comparison-vs {
                transform: rotate(90deg);
                padding: 4px 0;
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .match-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .category-hero {
                min-height: 260px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero-content {
                padding: 32px 0;
            }
            .channel-nav-row {
                gap: 4px;
            }
            .channel-tag {
                padding: 5px 12px;
                font-size: 0.8rem;
            }
            .section {
                padding: 40px 0;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 14px;
            }
            .brand-row {
                height: 52px;
            }
            .logo {
                font-size: 1.25rem;
            }
            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .brand-actions .login-btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 14px 12px;
            }
            .stat-card .stat-value {
                font-size: 1.5rem;
            }
            .category-hero h1 {
                font-size: 1.35rem;
            }
            .category-hero p {
                font-size: 0.9rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .cta-card {
                padding: 24px 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .comparison-panel {
                padding: 18px 14px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #00C2FF;
            --color-primary-soft: rgba(0, 194, 255, 0.1);
            --color-primary-glow: rgba(0, 194, 255, 0.5);
            --color-accent: #FFB300;
            --color-accent-deep: #FF8C00;
            --color-magenta: #E040FB;
            --color-bg-0: #0A0E1A;
            --color-bg-1: #0D1428;
            --color-bg-2: #101A30;
            --color-bg-card: #111C34;
            --color-text: #F0F4FA;
            --color-text-soft: rgba(240, 244, 250, 0.78);
            --color-text-muted: rgba(240, 244, 250, 0.55);
            --color-border: rgba(0, 194, 255, 0.14);
            --color-border-strong: rgba(0, 194, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.5);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --section-pad: 72px 0;
            --container-max: 1200px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg-0);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

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

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text);
        }

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

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--color-text-muted);
        }

        .brand-actions .icon-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.03);
            transition: all var(--transition);
            font-size: 0.9rem;
            color: var(--color-text-soft);
        }

        .brand-actions .icon-btn:hover {
            border-color: var(--color-primary);
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .brand-actions .login-btn {
            padding: 8px 16px;
            border-radius: 8px;
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 0.875rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
        }

        .brand-actions .login-btn:hover {
            background: #2ccfff;
            box-shadow: 0 0 14px var(--color-primary-glow);
            color: var(--color-bg-0);
        }

        .channel-nav-row {
            display: flex;
            align-items: center;
            height: 52px;
            border-top: 1px solid rgba(0, 194, 255, 0.07);
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-strong) transparent;
            -webkit-overflow-scrolling: touch;
        }

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

        .channel-nav-row::-webkit-scrollbar-thumb {
            background: var(--color-border-strong);
            border-radius: 99px;
        }

        .channel-nav-row .channel-label {
            flex-shrink: 0;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-text-muted);
            letter-spacing: 0.08em;
            padding-right: 8px;
        }

        .channel-tag {
            flex-shrink: 0;
            padding: 6px 18px;
            border-radius: 99px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-soft);
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .channel-tag:hover {
            color: var(--color-primary);
            border-color: var(--color-border);
            background: var(--color-primary-soft);
        }

        .channel-tag.active {
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            box-shadow: 0 0 14px var(--color-primary-glow);
        }

        .channel-tag.active:hover {
            background: #2ccfff;
            color: var(--color-bg-0);
        }

        /* ========== Category Hero ========== */
        .category-hero {
            position: relative;
            padding: 48px 0 40px;
            background: linear-gradient(135deg, rgba(0, 194, 255, 0.06) 0%, rgba(10, 14, 26, 0.2) 40%, rgba(10, 14, 26, 0.6) 100%), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(10, 14, 26, 0.9) 0%, rgba(10, 14, 26, 0.6) 50%, rgba(10, 14, 26, 0.3) 100%);
            pointer-events: none;
            z-index: 1;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .category-hero .breadcrumb {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .category-hero .breadcrumb a {
            color: var(--color-text-soft);
            transition: color var(--transition);
        }

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

        .category-hero h1 {
            font-size: 2.4rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
            max-width: 640px;
        }

        .category-hero .hero-subtitle {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--color-text-soft);
            max-width: 560px;
            margin-bottom: 22px;
        }

        .category-hero .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .category-hero .hero-tags .tag-pill {
            padding: 6px 16px;
            border-radius: 99px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--color-primary-soft);
            border: 1px solid var(--color-border);
            color: var(--color-primary);
            transition: all var(--transition);
        }

        .category-hero .hero-tags .tag-pill:hover {
            background: var(--color-primary);
            color: var(--color-bg-0);
            border-color: var(--color-primary);
        }

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

        .section-alt {
            background: var(--color-bg-1);
        }

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

        .section-head .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 10px;
            padding: 4px 12px;
            border-radius: 4px;
            background: rgba(255, 179, 0, 0.08);
            border-left: 3px solid var(--color-accent);
        }

        .section-head h2 {
            font-size: 1.8rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .section-head p {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 640px;
        }

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

        .capability-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            border-top: 3px solid transparent;
        }

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

        .capability-card .cap-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--color-primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: var(--color-primary);
        }

        .capability-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .capability-card p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* ========== Data Cards Grid ========== */
        .data-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

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

        .data-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-bg-2);
        }

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

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

        .data-card .card-cover .rating-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: 99px;
            background: rgba(10, 14, 26, 0.85);
            border: 1px solid var(--color-border-strong);
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.04em;
        }

        .data-card .card-cover .rating-badge .stars {
            font-size: 0.68rem;
            color: var(--color-accent-deep);
            letter-spacing: 0.02em;
        }

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

        .data-card .card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
        }

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

        .data-card .card-body .card-tags .tag {
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 0.72rem;
            font-weight: 600;
            background: var(--color-primary-soft);
            border: 1px solid var(--color-border);
            color: var(--color-primary);
            transition: all var(--transition);
        }

        .data-card .card-body .card-tags .tag:hover {
            background: var(--color-primary);
            color: var(--color-bg-0);
        }

        .data-card .card-body .card-tags .tag.alt {
            background: rgba(255, 179, 0, 0.08);
            border-color: rgba(255, 179, 0, 0.25);
            color: var(--color-accent);
        }

        .data-card .card-body p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }

        .data-card .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid rgba(0, 194, 255, 0.08);
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        .data-card .card-body .card-meta .meta-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .data-card .card-body .card-meta .read-link {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.78rem;
            transition: all var(--transition);
        }

        .data-card .card-body .card-meta .read-link:hover {
            color: var(--color-accent);
        }

        /* ========== Pagination ========== */
        .pagination-section {
            padding: 32px 0 48px;
        }

        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .pagination .page-btn {
            min-width: 38px;
            height: 38px;
            padding: 0 10px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: var(--color-bg-card);
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-soft);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .pagination .page-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: var(--color-primary-soft);
        }

        .pagination .page-btn.active {
            background: var(--color-primary);
            color: var(--color-bg-0);
            border-color: var(--color-primary);
            font-weight: 700;
            box-shadow: 0 0 12px var(--color-primary-glow);
        }

        .pagination .page-btn.active:hover {
            background: #2ccfff;
            color: var(--color-bg-0);
        }

        .pagination .page-btn.load-more {
            padding: 0 24px;
            background: transparent;
            border-color: var(--color-border-strong);
            color: var(--color-primary);
            font-size: 0.85rem;
        }

        .pagination .page-btn.load-more:hover {
            background: var(--color-primary-soft);
            border-color: var(--color-primary);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 48px 0;
            background: var(--color-bg-1);
            border-top: 1px solid rgba(0, 194, 255, 0.06);
            border-bottom: 1px solid rgba(0, 194, 255, 0.06);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--color-bg-card);
            transition: all var(--transition);
        }

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

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            gap: 12px;
            color: var(--color-text);
            transition: color var(--transition);
        }

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

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

        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            display: none;
        }

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

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--color-primary);
            color: var(--color-bg-0);
        }

        /* ========== CTA Form ========== */
        .cta-section {
            padding: 56px 0;
            background: linear-gradient(135deg, rgba(0, 194, 255, 0.08) 0%, rgba(10, 14, 26, 0.4) 60%, rgba(255, 179, 0, 0.06) 100%);
        }

        .cta-card {
            max-width: 560px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-hover);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent-deep));
        }

        .cta-card h3 {
            font-size: 1.35rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .cta-card .cta-desc {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .cta-card .form-row {
            display: flex;
            gap: 12px;
            margin-bottom: 14px;
        }

        .cta-card .form-row .form-group {
            flex: 1;
        }

        .cta-card .form-group {
            margin-bottom: 14px;
        }

        .cta-card .form-group label {
            display: block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-text-soft);
            margin-bottom: 6px;
        }

        .cta-card .form-group input,
        .cta-card .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.03);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition);
        }

        .cta-card .form-group input:focus,
        .cta-card .form-group textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.12);
            background: rgba(0, 194, 255, 0.04);
        }

        .cta-card .form-group textarea {
            min-height: 80px;
            resize: vertical;
        }

        .cta-card .submit-btn {
            width: 100%;
            padding: 12px 20px;
            border-radius: 8px;
            background: var(--color-accent);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            text-align: center;
        }

        .cta-card .submit-btn:hover {
            background: #ffc533;
            box-shadow: 0 0 16px rgba(255, 179, 0, 0.5);
            transform: scale(1.01);
        }

        .cta-card .form-note {
            font-size: 0.72rem;
            color: var(--color-text-muted);
            text-align: center;
            margin-top: 10px;
        }

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

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

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text);
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(0, 194, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            text-align: center;
        }

        .footer-bottom .footer-links {
            display: flex;
            justify-content: center;
            gap: 16px;
        }

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

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

        .footer-bottom .footer-beian {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.72rem;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 56px 0;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

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

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

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

        @media (max-width: 768px) {
            :root {
                --section-pad: 44px 0;
            }

            .brand-row {
                height: 54px;
            }

            .logo {
                font-size: 1.25rem;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 1rem;
                border-radius: 8px;
            }

            .brand-actions .login-btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }

            .channel-nav-row {
                height: 46px;
                gap: 4px;
            }

            .channel-tag {
                padding: 5px 14px;
                font-size: 0.8rem;
            }

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

            .category-hero h1 {
                font-size: 1.6rem;
                margin-bottom: 10px;
            }

            .category-hero .hero-subtitle {
                font-size: 0.9rem;
                margin-bottom: 16px;
            }

            .section-head h2 {
                font-size: 1.4rem;
            }

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

            .data-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .cta-card {
                padding: 24px 18px;
            }

            .cta-card .form-row {
                flex-direction: column;
                gap: 0;
            }

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

            .footer-bottom {
                gap: 6px;
            }

            .footer-bottom .footer-beian {
                flex-direction: column;
                gap: 4px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-pad: 36px 0;
            }

            .container {
                padding: 0 16px;
            }

            .brand-actions .icon-btn {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }

            .brand-actions .login-btn {
                padding: 5px 10px;
                font-size: 0.72rem;
                border-radius: 6px;
            }

            .channel-nav-row .channel-label {
                display: none;
            }

            .channel-tag {
                padding: 4px 12px;
                font-size: 0.75rem;
                border-radius: 6px;
            }

            .category-hero h1 {
                font-size: 1.35rem;
            }

            .category-hero .hero-subtitle {
                font-size: 0.82rem;
                line-height: 1.7;
            }

            .category-hero .hero-tags .tag-pill {
                padding: 4px 12px;
                font-size: 0.7rem;
            }

            .section-head h2 {
                font-size: 1.2rem;
            }

            .section-head p {
                font-size: 0.85rem;
            }

            .data-card .card-body h3 {
                font-size: 0.95rem;
            }

            .data-card .card-body .card-tags .tag {
                font-size: 0.65rem;
                padding: 2px 8px;
            }

            .cta-card h3 {
                font-size: 1.1rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #00C2FF;
            --color-primary-soft: rgba(0, 194, 255, 0.1);
            --color-primary-glow: rgba(0, 194, 255, 0.5);
            --color-accent: #FFB300;
            --color-accent-deep: #FF8C00;
            --color-magenta: #E040FB;
            --color-bg-0: #0A0E1A;
            --color-bg-1: #0D1428;
            --color-bg-2: #101A30;
            --color-bg-card: #111C34;
            --color-text: #F0F4FA;
            --color-text-soft: rgba(240, 244, 250, 0.78);
            --color-text-muted: rgba(240, 244, 250, 0.55);
            --color-border: rgba(0, 194, 255, 0.14);
            --color-border-strong: rgba(0, 194, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.5);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --section-pad: 48px 0;
            --container-max: 1200px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg-0);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text);
        }
        .logo:hover {
            color: var(--color-primary);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--color-text-muted);
        }
        .brand-actions .icon-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.03);
            transition: all var(--transition);
            font-size: 0.9rem;
            color: var(--color-text-soft);
        }
        .brand-actions .icon-btn:hover {
            border-color: var(--color-primary);
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }
        .brand-actions .login-btn {
            padding: 8px 16px;
            border-radius: 8px;
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 0.875rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
        }
        .brand-actions .login-btn:hover {
            background: #2ccfff;
            box-shadow: 0 0 14px var(--color-primary-glow);
            color: var(--color-bg-0);
        }
        .channel-nav-row {
            display: flex;
            align-items: center;
            height: 52px;
            border-top: 1px solid rgba(0, 194, 255, 0.07);
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-strong) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .channel-nav-row::-webkit-scrollbar {
            height: 3px;
        }
        .channel-nav-row::-webkit-scrollbar-thumb {
            background: var(--color-border-strong);
            border-radius: 99px;
        }
        .channel-label {
            flex-shrink: 0;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            letter-spacing: 0.2em;
            padding-right: 4px;
            font-weight: 500;
        }
        .channel-tag {
            flex-shrink: 0;
            padding: 6px 18px;
            border-radius: 99px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-soft);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .channel-tag:hover {
            color: var(--color-primary);
            background: var(--color-primary-soft);
        }
        .channel-tag.active {
            background: var(--color-primary);
            color: var(--color-bg-0);
            box-shadow: 0 0 12px var(--color-primary-glow);
        }
        .channel-tag.active:hover {
            color: var(--color-bg-0);
            background: #2ccfff;
        }

        /* ========== Category Hero ========== */
        .category-hero {
            position: relative;
            background: var(--color-bg-1);
            border-bottom: 1px solid var(--color-border);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(10, 14, 26, 0.95) 15%, rgba(10, 14, 26, 0.55) 55%, rgba(10, 14, 26, 0.2) 80%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            z-index: 0;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .category-hero-inner {
            max-width: 700px;
        }
        .category-hero-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 99px;
            background: var(--color-primary-soft);
            border: 1px solid var(--color-border-strong);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            margin-bottom: 16px;
        }
        .category-hero h1 {
            font-size: 2.6rem;
            line-height: 1.3;
            font-weight: 900;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .category-hero h1 .highlight {
            color: var(--color-primary);
        }
        .category-hero p {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text-soft);
            max-width: 620px;
        }
        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
        }
        .category-hero .hero-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--color-border);
            font-size: 0.82rem;
            color: var(--color-text-soft);
        }
        .category-hero .hero-meta-item .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        /* ========== Section Common ========== */
        .section {
            padding: var(--section-pad);
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .section-header p {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 560px;
        }

        /* ========== Card Grid ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .community-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }
        .community-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-border-strong);
            box-shadow: var(--shadow-hover);
        }
        .community-card .card-img {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            flex-shrink: 0;
        }
        .community-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .community-card:hover .card-img img {
            transform: scale(1.04);
        }
        .community-card .card-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            display: inline-block;
            padding: 3px 10px;
            border-radius: 99px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            background: rgba(10, 14, 26, 0.85);
            color: var(--color-accent);
            border: 1px solid rgba(255, 179, 0, 0.35);
            backdrop-filter: blur(4px);
        }
        .community-card .card-badge.magenta {
            color: var(--color-magenta);
            border-color: rgba(224, 64, 251, 0.35);
        }
        .community-card .card-body {
            padding: 18px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .community-card .card-title {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text);
            line-height: 1.45;
        }
        .community-card .card-rating {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-bottom: 10px;
            font-size: 0.78rem;
            color: var(--color-accent);
        }
        .community-card .card-rating .star {
            font-size: 0.9rem;
            line-height: 1;
        }
        .community-card .card-rating .level {
            color: var(--color-text-muted);
            margin-left: 6px;
            font-weight: 600;
        }
        .community-card .card-desc {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 14px;
            flex: 1;
        }
        .community-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .community-card .card-tags span {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 99px;
            font-size: 0.72rem;
            font-weight: 600;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }
        .community-card .card-tags span.alt {
            background: rgba(255, 179, 0, 0.08);
            color: var(--color-accent);
            border-color: rgba(255, 179, 0, 0.25);
        }

        /* ========== Pagination ========== */
        .pagination-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .pagination-row .page-btn {
            min-width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0 14px;
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text-soft);
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            transition: all var(--transition);
        }
        .pagination-row .page-btn:hover {
            color: var(--color-primary);
            border-color: var(--color-border-strong);
            background: var(--color-primary-soft);
        }
        .pagination-row .page-btn.active {
            background: var(--color-primary);
            color: var(--color-bg-0);
            border-color: var(--color-primary);
            font-weight: 700;
        }
        .pagination-row .page-btn.load-more {
            padding: 0 22px;
            background: transparent;
            border-color: var(--color-border-strong);
            color: var(--color-primary);
            font-weight: 700;
        }
        .pagination-row .page-btn.load-more:hover {
            background: var(--color-primary-soft);
            box-shadow: 0 0 10px var(--color-primary-glow);
        }
        .pagination-row .page-dots {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            padding: 0 4px;
        }

        /* ========== Community Feature ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            transition: all var(--transition);
        }
        .feature-item:hover {
            border-color: var(--color-border-strong);
            background: var(--color-bg-2);
            transform: translateY(-2px);
        }
        .feature-item .feature-icon {
            font-size: 1.6rem;
            margin-bottom: 10px;
            display: block;
        }
        .feature-item h4 {
            font-size: 0.98rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text);
        }
        .feature-item p {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* ========== Stats Banner ========== */
        .stats-banner {
            background: var(--color-bg-1);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: 32px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: 1.75rem;
            font-weight: 900;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .stat-item .stat-label {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ========== CTA Form ========== */
        .cta-section {
            padding: var(--section-pad);
            background: linear-gradient(180deg, var(--color-bg-0) 0%, var(--color-bg-1) 100%);
        }
        .cta-card {
            max-width: 560px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent-deep), var(--color-magenta));
        }
        .cta-card h2 {
            font-size: 1.45rem;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .cta-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .cta-form .form-row {
            display: flex;
            gap: 12px;
        }
        .cta-form .form-row .form-group {
            flex: 1;
        }
        .cta-form input {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.04);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .cta-form input::placeholder {
            color: var(--color-text-muted);
        }
        .cta-form input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px var(--color-primary-soft);
            background: rgba(255, 255, 255, 0.06);
        }
        .cta-form .submit-btn {
            width: 100%;
            padding: 13px 20px;
            border-radius: var(--radius-sm);
            background: var(--color-accent);
            color: var(--color-bg-0);
            font-weight: 800;
            font-size: 0.98rem;
            letter-spacing: 0.04em;
            transition: all var(--transition);
            margin-top: 4px;
        }
        .cta-form .submit-btn:hover {
            background: #ffc533;
            box-shadow: 0 0 18px rgba(255, 179, 0, 0.45);
            transform: scale(1.02);
        }
        .cta-card .cta-trust {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-top: 18px;
            flex-wrap: wrap;
        }
        .cta-card .cta-trust span {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .cta-card .cta-trust span::before {
            content: '';
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--color-primary);
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--section-pad);
            background: var(--color-bg-0);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border-strong);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text);
            gap: 12px;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--color-border-strong);
            color: var(--color-primary);
            font-size: 1rem;
            font-weight: 700;
            transition: all var(--transition);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 260px;
            padding-bottom: 18px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-primary);
            color: var(--color-bg-0);
            border-color: var(--color-primary);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-bg-1);
            border-top: 1px solid var(--color-border);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            font-size: 1rem;
            font-weight: 900;
            flex-shrink: 0;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.8;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-text);
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            text-align: center;
        }
        .footer-bottom span {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }
        .footer-links {
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .footer-links a {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            justify-content: center;
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }
        .footer-beian span {
            font-size: 0.78rem;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .cta-card {
                padding: 28px 20px;
            }
            .cta-form .form-row {
                flex-direction: column;
                gap: 14px;
            }
            .brand-actions .login-btn {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            :root {
                --section-pad: 36px 0;
            }
            .brand-row {
                height: 52px;
            }
            .logo {
                font-size: 1.3rem;
            }
            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .channel-nav-row {
                height: 44px;
                gap: 4px;
            }
            .channel-tag {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
            .channel-label {
                display: none;
            }
            .category-hero {
                min-height: 240px;
            }
            .category-hero .container {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero .hero-meta-item {
                font-size: 0.72rem;
                padding: 4px 10px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item .stat-num {
                font-size: 1.4rem;
            }
            .pagination-row .page-btn {
                min-width: 34px;
                height: 34px;
                font-size: 0.8rem;
                padding: 0 10px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.88rem;
            }
            .faq-answer {
                font-size: 0.82rem;
                padding: 0 16px;
            }
            .card-grid {
                gap: 16px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #00C2FF;
            --color-primary-soft: rgba(0, 194, 255, 0.1);
            --color-primary-glow: rgba(0, 194, 255, 0.5);
            --color-accent: #FFB300;
            --color-accent-deep: #FF8C00;
            --color-magenta: #E040FB;
            --color-bg-0: #0A0E1A;
            --color-bg-1: #0D1428;
            --color-bg-2: #101A30;
            --color-bg-card: #111C34;
            --color-text: #F0F4FA;
            --color-text-soft: rgba(240, 244, 250, 0.78);
            --color-text-muted: rgba(240, 244, 250, 0.55);
            --color-border: rgba(0, 194, 255, 0.14);
            --color-border-strong: rgba(0, 194, 255, 0.3);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.5);
            --font-stack: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --section-pad: 72px 0;
            --container-max: 1200px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg-0);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

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

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--color-text);
        }

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

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            font-size: 1.2rem;
            font-weight: 900;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--color-text-muted);
        }

        .brand-actions .icon-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.03);
            transition: all var(--transition);
            font-size: 0.9rem;
            color: var(--color-text-soft);
        }

        .brand-actions .icon-btn:hover {
            border-color: var(--color-primary);
            background: var(--color-primary-soft);
            color: var(--color-primary);
        }

        .brand-actions .login-btn {
            padding: 8px 16px;
            border-radius: 8px;
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 0.875rem;
            letter-spacing: 0.01em;
            transition: all var(--transition);
        }

        .brand-actions .login-btn:hover {
            background: #2ccfff;
            box-shadow: 0 0 14px var(--color-primary-glow);
            color: var(--color-bg-0);
        }

        .channel-nav-row {
            display: flex;
            align-items: center;
            height: 52px;
            border-top: 1px solid rgba(0, 194, 255, 0.07);
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-strong) transparent;
            -webkit-overflow-scrolling: touch;
        }

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

        .channel-nav-row::-webkit-scrollbar-thumb {
            background: var(--color-border-strong);
            border-radius: 99px;
        }

        .channel-label {
            flex-shrink: 0;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--color-text-muted);
            text-transform: uppercase;
            margin-right: 6px;
            padding: 4px 0;
        }

        .channel-tag {
            flex-shrink: 0;
            padding: 6px 18px;
            border-radius: 99px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-soft);
            border: 1px solid transparent;
            transition: all var(--transition);
            position: relative;
        }

        .channel-tag:hover {
            color: var(--color-primary);
            border-color: var(--color-border-strong);
            background: var(--color-primary-soft);
        }

        .channel-tag.active {
            background: var(--color-primary);
            color: var(--color-bg-0);
            font-weight: 700;
            border-color: var(--color-primary);
        }

        .channel-tag.active:hover {
            color: var(--color-bg-0);
            background: #2ccfff;
            border-color: #2ccfff;
        }

        /* ========== Category Hero ========== */
        .category-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            min-height: 280px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(10, 14, 26, 0.92) 0%, rgba(10, 14, 26, 0.75) 45%, rgba(10, 14, 26, 0.45) 100%);
            z-index: 1;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 99px;
            background: var(--color-primary-soft);
            border: 1px solid var(--color-border-strong);
            color: var(--color-primary);
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
        }

        .category-hero h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: var(--color-text);
            margin-bottom: 12px;
        }

        .category-hero .hero-subtitle {
            font-size: clamp(0.95rem, 1.5vw, 1.125rem);
            color: var(--color-text-soft);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 20px;
        }

        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .category-hero .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .category-hero .hero-meta .dot-sep {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--color-border-strong);
        }

        /* ========== Section Base ========== */
        .section {
            padding: var(--section-pad);
        }

        .section-alt {
            background: var(--color-bg-1);
        }

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

        .section-head h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .section-head .section-sub {
            font-size: 1rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 720px;
        }

        .section-head.center {
            text-align: center;
        }

        .section-head.center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

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

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

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

        .member-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--color-bg-2);
        }

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

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

        .member-card .card-cover .level-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 4px 12px;
            border-radius: 99px;
            font-size: 0.75rem;
            font-weight: 800;
            letter-spacing: 0.05em;
            background: rgba(10, 14, 26, 0.85);
            color: var(--color-accent);
            border: 1px solid rgba(255, 179, 0, 0.4);
        }

        .member-card .card-cover .level-badge.gold {
            color: #FFD54F;
            border-color: rgba(255, 213, 79, 0.4);
        }

        .member-card .card-cover .level-badge.platinum {
            color: #B0BEC5;
            border-color: rgba(176, 190, 197, 0.4);
        }

        .member-card .card-cover .level-badge.diamond {
            color: #B388FF;
            border-color: rgba(179, 136, 255, 0.4);
        }

        .member-card .card-body {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .member-card .card-title {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
            line-height: 1.4;
        }

        .member-card .card-rating {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-bottom: 10px;
            font-size: 0.85rem;
            color: var(--color-accent);
            letter-spacing: 0.04em;
        }

        .member-card .card-rating .rating-stars {
            display: flex;
            gap: 2px;
            font-size: 0.8rem;
        }

        .member-card .card-rating .rating-stars .star-filled {
            color: var(--color-accent);
        }

        .member-card .card-rating .rating-stars .star-empty {
            color: rgba(255, 179, 0, 0.35);
        }

        .member-card .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

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

        .member-card .card-tags .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: 99px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            border: 1px solid rgba(0, 194, 255, 0.2);
        }

        .member-card .card-tags .tag.accent {
            background: rgba(255, 179, 0, 0.12);
            color: var(--color-accent);
            border-color: rgba(255, 179, 0, 0.25);
        }

        /* ========== Stats Panel ========== */
        .stats-panel {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition);
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--color-primary);
            border-radius: 0 4px 4px 0;
        }

        .stat-card:hover {
            border-color: var(--color-border-strong);
            transform: translateY(-2px);
        }

        .stat-card .stat-number {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-card .stat-unit {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        .stat-card .stat-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-soft);
            margin-top: 8px;
            letter-spacing: 0.02em;
        }

        .stat-card .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-top: 8px;
        }

        .stat-card .stat-trend.up {
            color: #4ADE80;
        }

        .stat-card .stat-trend.down {
            color: #F87171;
        }

        /* ========== Comparison Panel ========== */
        .comparison-panel {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 24px;
            align-items: stretch;
        }

        .comparison-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
        }

        .comparison-card.highlight {
            border-color: var(--color-border-strong);
            background: linear-gradient(135deg, rgba(0, 194, 255, 0.06) 0%, var(--color-bg-card) 100%);
        }

        .comparison-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .comparison-card .compare-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(240, 244, 250, 0.06);
        }

        .comparison-card .compare-item:last-child {
            border-bottom: none;
        }

        .comparison-card .compare-label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            flex-shrink: 0;
            width: 80px;
            font-weight: 600;
        }

        .comparison-card .compare-bar-wrap {
            flex: 1;
            height: 8px;
            background: rgba(240, 244, 250, 0.08);
            border-radius: 99px;
            overflow: hidden;
        }

        .comparison-card .compare-bar {
            height: 100%;
            border-radius: 99px;
            background: var(--color-primary);
            transition: width 0.8s ease;
        }

        .comparison-card .compare-bar.accent {
            background: var(--color-accent);
        }

        .comparison-card .compare-value {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-text);
            flex-shrink: 0;
            width: 48px;
            text-align: right;
        }

        .comparison-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 900;
            color: var(--color-accent);
            letter-spacing: 0.05em;
        }

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

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

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

        .faq-item.open {
            border-color: var(--color-border-strong);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            background: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition);
            user-select: none;
            -webkit-tap-highlight-color: transparent;
        }

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

        .faq-question .faq-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-primary-soft);
            color: var(--color-primary);
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--color-text-soft);
            font-size: 0.9rem;
            line-height: 1.8;
        }

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

        .faq-answer p {
            padding-top: 4px;
            border-top: 1px solid rgba(240, 244, 250, 0.08);
        }

        /* ========== CTA Form ========== */
        .cta-section {
            background: linear-gradient(135deg, rgba(255, 179, 0, 0.08) 0%, rgba(10, 14, 26, 0) 60%);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .cta-form-wrap {
            max-width: 560px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-strong);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
        }

        .cta-form-wrap h2 {
            font-size: 1.4rem;
            font-weight: 800;
            text-align: center;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .cta-form-wrap .cta-sub {
            text-align: center;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .form-field {
            margin-bottom: 16px;
        }

        .form-field label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-soft);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .form-field input {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            background: rgba(255, 255, 255, 0.04);
            color: var(--color-text);
            font-size: 0.95rem;
            transition: all var(--transition);
        }

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

        .form-field input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.15);
            background: rgba(255, 255, 255, 0.06);
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px 24px;
            border-radius: 10px;
            background: var(--color-accent);
            color: var(--color-bg-0);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            margin-top: 8px;
        }

        .form-submit-btn:hover {
            background: #FFC533;
            box-shadow: 0 0 18px rgba(255, 179, 0, 0.45);
            transform: translateY(-2px);
        }

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

        .form-trust-line {
            text-align: center;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 14px;
            line-height: 1.6;
        }

        /* ========== Load More ========== */
        .load-more-wrap {
            display: flex;
            justify-content: center;
            margin-top: 32px;
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 99px;
            border: 1.5px solid var(--color-primary);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            background: transparent;
            letter-spacing: 0.02em;
        }

        .load-more-btn:hover {
            background: var(--color-primary-soft);
            border-color: var(--color-primary);
            box-shadow: 0 0 16px rgba(0, 194, 255, 0.3);
        }

        .load-more-btn:active {
            transform: scale(0.97);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-bg-1);
            border-top: 1px solid var(--color-border);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(240, 244, 250, 0.06);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-mark {
            width: 34px;
            height: 34px;
            font-size: 1rem;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
            color: var(--color-bg-0);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 20px 0 28px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

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

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

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

        .footer-bottom .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .stats-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

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

            .comparison-vs {
                display: none;
            }

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

        @media (max-width: 640px) {
            :root {
                --section-pad: 48px 0;
            }

            .container {
                padding: 0 16px;
            }

            .brand-row {
                height: 56px;
            }

            .logo {
                font-size: 1.25rem;
                gap: 8px;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 1rem;
                border-radius: 8px;
            }

            .brand-actions .icon-btn {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }

            .brand-actions .login-btn {
                padding: 6px 12px;
                font-size: 0.8rem;
            }

            .channel-nav-row {
                height: 46px;
                gap: 4px;
            }

            .channel-tag {
                padding: 5px 13px;
                font-size: 0.8rem;
            }

            .channel-label {
                font-size: 0.7rem;
                margin-right: 2px;
            }

            .category-hero {
                min-height: 220px;
            }

            .category-hero .container {
                padding-top: 36px;
                padding-bottom: 36px;
            }

            .category-hero h1 {
                font-size: 24px;
                line-height: 1.35;
            }

            .category-hero .hero-subtitle {
                font-size: 0.9rem;
                line-height: 1.7;
            }

            .category-hero .hero-meta {
                font-size: 0.75rem;
                gap: 10px;
            }

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

            .section-head h2 {
                font-size: 22px;
            }

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

            .member-card .card-body {
                padding: 16px 16px 20px;
            }

            .stats-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

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

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

            .comparison-card {
                padding: 20px 16px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }

            .faq-answer {
                font-size: 0.85rem;
            }

            .cta-form-wrap {
                padding: 24px 18px;
                border-radius: var(--radius-md);
            }

            .cta-form-wrap h2 {
                font-size: 1.2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 28px;
            }

            .footer-brand p {
                max-width: 100%;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                font-size: 0.78rem;
            }

            .footer-bottom .footer-links {
                gap: 12px;
            }

            .footer-bottom .footer-beian {
                flex-direction: column;
                gap: 4px;
            }
        }