/* roulang page: index */
:root {
            --bg: #0c0f0d;
            --surface: #161b17;
            --surface-2: #1d241f;
            --primary: #b7e32b;
            --accent: #ff6a3d;
            --danger: #f43f5e;
            --text: #f4f2e8;
            --muted: #8e9a8f;
            --border: #2c362e;
            --shadow: rgba(0, 0, 0, 0.6);
            --radius-card: 18px;
            --radius-btn: 12px;
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
            --font-display: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            appearance: none;
            -webkit-appearance: none;
            border: none;
            background: transparent;
            color: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        h1, h2, h3, h4, h5, h6 {
            line-height: 1.3;
            margin: 0 0 0.5em;
            font-weight: 700;
        }
        p {
            margin: 0 0 1em;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(12, 15, 13, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
            flex-wrap: nowrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), #6a9e12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 18px;
            color: #0c0f0d;
            flex-shrink: 0;
            box-shadow: 0 0 24px rgba(183, 227, 43, 0.3);
        }
        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: var(--text);
        }
        .brand-name:hover {
            color: var(--primary);
        }
        @media (max-width: 480px) {
            .brand-name {
                font-size: 1rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
                border-radius: 10px;
            }
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .icon-btn {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            color: var(--muted);
        }
        .icon-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 16px rgba(183, 227, 43, 0.2);
        }
        .icon-btn:active {
            transform: scale(0.95);
        }
        .subscribe-btn {
            padding: 0 20px;
            height: 44px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            box-shadow: 0 0 20px rgba(183, 227, 43, 0.35);
        }
        .subscribe-btn:hover {
            background: #c9f542;
            box-shadow: 0 0 30px rgba(183, 227, 43, 0.5);
            transform: translateY(-1px);
        }
        .subscribe-btn:active {
            transform: scale(0.97);
        }
        .icon-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            min-height: 60px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }
        .icon-nav::-webkit-scrollbar {
            display: none;
        }
        .icon-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            min-width: 72px;
            padding: 8px 10px;
            border-radius: 12px;
            color: var(--muted);
            font-size: 0.75rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            flex-shrink: 0;
            border: 1px solid transparent;
        }
        .icon-nav-item:hover {
            color: var(--primary);
            background: var(--surface);
            border-color: var(--border);
        }
        .icon-nav-item.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0 0 8px 8px;
        }
        .icon-nav-item svg {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .icon-nav-item {
                min-width: 60px;
                padding: 6px 8px;
                font-size: 0.65rem;
            }
            .icon-nav-item svg {
                width: 18px;
                height: 18px;
            }
            .brand-actions .icon-btn:first-child {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .brand-row {
                min-height: 58px;
            }
            .icon-nav {
                min-height: 52px;
            }
            .subscribe-btn {
                padding: 0 14px;
                height: 38px;
                font-size: 0.75rem;
            }
            .icon-btn {
                width: 38px;
                height: 38px;
            }
        }

        /* Section base */
        .section {
            padding: 80px 0;
            position: relative;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
        }
        .section-alt {
            background: var(--surface);
        }
        .section-dark {
            background: var(--bg);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 16px;
            color: var(--text);
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background: var(--primary);
            margin-top: 8px;
            border-radius: 2px;
        }
        .section-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 40px;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.9rem;
                margin-bottom: 28px;
            }
        }

        /* Hero */
        .hero {
            min-height: 75vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
            background: var(--bg);
            padding: 60px 0 80px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/073e0ae972fa9a25.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.3;
            z-index: 1;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(12,15,13,0.75) 0%, rgba(12,15,13,0.4) 50%, rgba(12,15,13,0.9) 100%);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(183, 227, 43, 0.15);
            border: 1px solid rgba(183, 227, 43, 0.4);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
        }
        .hero-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse-dot 1.6s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { transform: scale(1); opacity: 1; }
            50% { transform: scale(1.5); opacity: 0.6; }
        }
        .hero h1 {
            font-size: 2.75rem;
            font-weight: 900;
            letter-spacing: 0.02em;
            line-height: 1.25;
            margin-bottom: 20px;
            color: #fff;
            max-width: 800px;
        }
        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }
        .hero-desc {
            font-size: 1.05rem;
            color: var(--muted);
            max-width: 640px;
            line-height: 1.9;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .btn-primary {
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 0 28px rgba(183, 227, 43, 0.4);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            background: #cdf543;
            box-shadow: 0 0 40px rgba(183, 227, 43, 0.55);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-secondary {
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s ease;
            border: 1px solid var(--border);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(183, 227, 43, 0.08);
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }
        .countdown-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(22, 27, 23, 0.85);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px 24px;
            margin-bottom: 32px;
            max-width: 520px;
            flex-wrap: wrap;
        }
        .countdown-bar .label {
            color: var(--muted);
            font-size: 0.85rem;
            font-weight: 500;
            flex-shrink: 0;
        }
        .countdown-bar .time {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.05em;
            font-variant-numeric: tabular-nums;
        }
        .countdown-bar .badge {
            padding: 4px 12px;
            border-radius: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
        }
        .hero-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 8px;
        }
        @media (max-width: 992px) {
            .hero-metrics {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .hero-metrics {
                grid-template-columns: 1fr;
            }
        }
        .metric-card {
            background: rgba(22, 27, 23, 0.85);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all 0.25s ease;
            backdrop-filter: blur(8px);
        }
        .metric-card:hover {
            border-color: var(--primary);
            box-shadow: 0 0 20px rgba(183, 227, 43, 0.15);
            transform: translateY(-2px);
        }
        .metric-card .metric-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .metric-card .metric-label {
            font-size: 0.8rem;
            color: var(--muted);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .metric-card .metric-value {
                font-size: 1.4rem;
            }
            .btn-primary, .btn-secondary {
                padding: 12px 20px;
                font-size: 0.85rem;
            }
            .countdown-bar {
                padding: 12px 16px;
            }
            .countdown-bar .time {
                font-size: 1.1rem;
            }
        }

        /* Category grid */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 992px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
        }
        .category-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            gap: 12px;
            cursor: pointer;
        }
        .category-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 30px rgba(0,0,0,0.4), 0 0 16px rgba(183,227,43,0.12);
            transform: translateY(-4px);
        }
        .category-card .cat-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(183, 227, 43, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
        }
        .category-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin: 0;
            color: var(--text);
        }
        .category-card p {
            font-size: 0.82rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }
        .category-card.more-card {
            border-color: var(--primary);
            background: rgba(183, 227, 43, 0.06);
            justify-content: center;
            align-items: flex-start;
        }
        .category-card.more-card h3 {
            color: var(--primary);
        }

        /* Service matrix */
        .matrix-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 16px;
            align-items: stretch;
        }
        @media (max-width: 992px) {
            .matrix-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .matrix-grid {
                grid-template-columns: 1fr;
            }
        }
        .matrix-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all 0.25s ease;
            position: relative;
            overflow: hidden;
        }
        .matrix-card:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 28px rgba(0,0,0,0.35);
            transform: translateY(-3px);
        }
        .matrix-card.featured {
            grid-row: span 2;
            background: var(--surface-2);
            border-color: rgba(183, 227, 43, 0.3);
        }
        .matrix-card .status-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.7rem;
            font-weight: 700;
            background: var(--accent);
            color: #fff;
            letter-spacing: 0.04em;
        }
        .matrix-card .status-badge.green {
            background: var(--primary);
            color: #0c0f0d;
        }
        .matrix-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .matrix-card p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }
        .matrix-card .order-num {
            font-size: 2rem;
            font-weight: 900;
            color: rgba(183, 227, 43, 0.15);
            line-height: 1;
            margin-bottom: 12px;
        }

        /* Ranking strip */
        .ranking-strip {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding: 8px 4px 16px;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
            -webkit-overflow-scrolling: touch;
        }
        .ranking-strip::-webkit-scrollbar {
            height: 6px;
        }
        .ranking-strip::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }
        .rank-card {
            flex: 0 0 280px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all 0.25s ease;
            position: relative;
        }
        .rank-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .rank-card .rank-num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 8px;
        }
        .rank-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 4px;
            color: var(--text);
        }
        .rank-card p {
            font-size: 0.75rem;
            color: var(--muted);
            margin: 0;
        }
        .rank-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: 12px;
            margin-bottom: 12px;
        }

        /* Comparison */
        .compare-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        @media (max-width: 768px) {
            .compare-row {
                grid-template-columns: 1fr;
                overflow-x: auto;
                display: flex;
                gap: 12px;
            }
            .compare-row .compare-card {
                flex: 0 0 85%;
            }
        }
        .compare-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all 0.25s ease;
        }
        .compare-card:hover {
            border-color: var(--primary);
        }
        .compare-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-card .diff-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--muted);
        }
        .compare-card .diff-item:last-child {
            border-bottom: none;
        }
        .compare-card .diff-item .icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 0.7rem;
            font-weight: 700;
        }
        .compare-card .diff-item .icon.yes {
            background: rgba(183, 227, 43, 0.2);
            color: var(--primary);
        }
        .compare-card .diff-item .icon.no {
            background: rgba(244, 63, 94, 0.15);
            color: var(--danger);
        }

        /* Timeline */
        .timeline {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding: 8px 4px 16px;
            scrollbar-width: thin;
            -webkit-overflow-scrolling: touch;
        }
        .timeline-item {
            flex: 0 0 240px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all 0.25s ease;
            position: relative;
        }
        .timeline-item:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .timeline-item .year {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.05em;
            margin-bottom: 8px;
        }
        .timeline-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 6px;
        }
        .timeline-item p {
            font-size: 0.78rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }
        .timeline-item .prog-bar {
            height: 4px;
            background: var(--border);
            border-radius: 2px;
            margin-top: 16px;
            overflow: hidden;
        }
        .timeline-item .prog-bar .fill {
            height: 100%;
            background: var(--primary);
            border-radius: 2px;
        }

        /* CMS info list */
        .cms-list {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 16px;
        }
        @media (max-width: 768px) {
            .cms-list {
                grid-template-columns: 1fr;
            }
        }
        .cms-main-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .cms-main-card:hover {
            border-color: var(--primary);
        }
        .cms-main-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .cms-main-card .cms-body {
            padding: 24px;
        }
        .cms-main-card .cms-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cms-main-card .cms-body p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .cms-side-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cms-side-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 16px;
            transition: all 0.25s ease;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .cms-side-card:hover {
            border-color: var(--primary);
        }
        .cms-side-card .num {
            font-size: 1.2rem;
            font-weight: 900;
            color: var(--primary);
            flex-shrink: 0;
            line-height: 1.3;
        }
        .cms-side-card h4 {
            font-size: 0.85rem;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--text);
        }
        .cms-side-card p {
            font-size: 0.75rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.5;
        }
        .cms-empty {
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
            padding: 48px;
            text-align: center;
            color: var(--muted);
            font-size: 0.9rem;
        }

        /* Guarantee */
        .guarantee-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 992px) {
            .guarantee-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .guarantee-row {
                grid-template-columns: 1fr;
            }
        }
        .guarantee-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            transition: all 0.25s ease;
        }
        .guarantee-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .guarantee-card .g-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 12px;
            border-radius: 50%;
            background: rgba(183, 227, 43, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            font-weight: 800;
        }
        .guarantee-card h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .guarantee-card p {
            font-size: 0.78rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Quick answers */
        .quick-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        @media (max-width: 768px) {
            .quick-grid {
                grid-template-columns: 1fr;
            }
        }
        .quick-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 20px;
            transition: all 0.25s ease;
            cursor: pointer;
        }
        .quick-card:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(0,0,0,0.3);
        }
        .quick-card h4 {
            font-size: 0.88rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .quick-card p {
            font-size: 0.78rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.55;
        }
        .quick-card .arrow {
            display: inline-block;
            margin-top: 8px;
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-item summary {
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
            color: var(--text);
            transition: color 0.2s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-item summary .plus {
            flex-shrink: 0;
            font-size: 1.4rem;
            font-weight: 400;
            color: var(--primary);
            transition: transform 0.25s ease;
            line-height: 1;
        }
        .faq-item[open] summary .plus {
            transform: rotate(45deg);
        }
        .faq-item .faq-content {
            padding: 0 24px 20px;
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.8;
        }

        /* Device grid */
        .device-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }
        @media (max-width: 992px) {
            .device-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .device-grid {
                grid-template-columns: 1fr;
            }
        }
        .device-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px;
            text-align: center;
            transition: all 0.25s ease;
        }
        .device-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .device-card .d-icon {
            font-size: 2rem;
            margin-bottom: 10px;
        }
        .device-card h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .device-card p {
            font-size: 0.75rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.55;
        }

        /* Steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            counter-reset: step;
        }
        @media (max-width: 992px) {
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .steps-row {
                grid-template-columns: 1fr;
            }
        }
        .step-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            position: relative;
            transition: all 0.25s ease;
        }
        .step-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .step-card .step-num {
            font-size: 1.8rem;
            font-weight: 900;
            color: rgba(183, 227, 43, 0.2);
            line-height: 1;
            margin-bottom: 12px;
        }
        .step-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-card p {
            font-size: 0.8rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.65;
        }

        /* Reviews */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        @media (max-width: 768px) {
            .review-grid {
                grid-template-columns: 1fr;
            }
        }
        .review-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all 0.25s ease;
        }
        .review-card:hover {
            border-color: var(--primary);
        }
        .review-card .stars {
            color: var(--primary);
            font-size: 1rem;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }
        .review-card p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .review-card .reviewer {
            font-size: 0.75rem;
            color: var(--muted);
            font-weight: 500;
        }

        /* Content preview */
        .preview-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        @media (max-width: 768px) {
            .preview-grid {
                grid-template-columns: 1fr;
            }
        }
        .preview-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all 0.25s ease;
            text-align: center;
        }
        .preview-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .preview-card h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .preview-card p {
            font-size: 0.78rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }
        .preview-card .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(183, 227, 43, 0.15);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        /* Form */
        .form-panel {
            background: var(--surface-2);
            border: 1px solid rgba(183, 227, 43, 0.35);
            border-radius: var(--radius-card);
            padding: 48px;
            max-width: 640px;
            margin: 0 auto;
            box-shadow: 0 0 50px rgba(183, 227, 43, 0.08);
        }
        @media (max-width: 768px) {
            .form-panel {
                padding: 28px 20px;
            }
        }
        .form-panel h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 8px;
            text-align: center;
        }
        .form-panel .form-desc {
            text-align: center;
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 28px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--muted);
            margin-bottom: 6px;
        }
        .form-group select,
        .form-group input[type="text"],
        .form-group input[type="email"],
        .form-group input[type="tel"] {
            width: 100%;
            padding: 12px 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            color: var(--text);
            font-size: 0.9rem;
            transition: all 0.25s ease;
        }
        .form-group select:focus,
        .form-group input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(183, 227, 43, 0.2);
            outline: none;
        }
        .form-group select::placeholder,
        .form-group input::placeholder {
            color: var(--muted);
        }
        .form-check {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 20px;
            cursor: pointer;
        }
        .form-check input[type="checkbox"] {
            width: 18px;
            height: 18px;
            border-radius: 4px;
            border: 1px solid var(--border);
            background: var(--bg);
            accent-color: var(--primary);
            cursor: pointer;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .form-check span {
            font-size: 0.8rem;
            color: var(--muted);
        }
        .form-submit-btn {
            width: 100%;
            padding: 14px 0;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 0 24px rgba(183, 227, 43, 0.35);
        }
        .form-submit-btn:hover {
            background: #cdf543;
            box-shadow: 0 0 36px rgba(183, 227, 43, 0.5);
            transform: translateY(-2px);
        }
        .form-submit-btn:active {
            transform: scale(0.97);
        }

        /* Helper tips */
        .tips-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        @media (max-width: 768px) {
            .tips-row {
                grid-template-columns: 1fr;
            }
        }
        .tip-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 20px;
            transition: all 0.25s ease;
        }
        .tip-card:hover {
            border-color: var(--primary);
        }
        .tip-card h4 {
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--primary);
        }
        .tip-card p {
            font-size: 0.78rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: #090b0a;
            border-top: 1px solid var(--border);
            padding: 48px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), #6a9e12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 16px;
            color: #0c0f0d;
        }
        .footer-brand .brand-name {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text);
        }
        .footer-desc {
            font-size: 0.8rem;
            color: var(--muted);
            line-height: 1.7;
            max-width: 400px;
        }
        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.8rem;
            color: var(--muted);
            transition: color 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            text-align: center;
            font-size: 0.75rem;
            color: var(--muted);
        }

        /* Misc utilities */
        .text-primary { color: var(--primary); }
        .text-muted { color: var(--muted); }
        .bg-surface { background: var(--surface); }
        .bg-surface-2 { background: var(--surface-2); }
        .border-soft { border-color: var(--border); }

/* roulang page: category1 */
:root {
            --bg: #0c0f0d;
            --surface: #161b17;
            --surface-2: #1d241f;
            --primary: #b7e32b;
            --accent: #ff6a3d;
            --danger: #f43f5e;
            --text: #f4f2e8;
            --muted: #8e9a8f;
            --border: #2c362e;
            --shadow: rgba(0, 0, 0, 0.6);
            --radius-card: 18px;
            --radius-btn: 12px;
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
            --font-display: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            appearance: none;
            -webkit-appearance: none;
            border: none;
            background: transparent;
            color: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(12, 15, 13, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
            flex-wrap: nowrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), #6a9e12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 18px;
            color: #0c0f0d;
            flex-shrink: 0;
            box-shadow: 0 0 24px rgba(183, 227, 43, 0.3);
        }
        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: var(--text);
        }
        .brand-name:hover {
            color: var(--primary);
        }
        @media (max-width: 520px) {
            .brand-name {
                font-size: 1rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
                border-radius: 10px;
            }
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .icon-btn {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            color: var(--muted);
        }
        .icon-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 16px rgba(183, 227, 43, 0.2);
        }
        .icon-btn:active {
            transform: scale(0.95);
        }
        .subscribe-btn {
            padding: 0 20px;
            height: 44px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            box-shadow: 0 0 20px rgba(183, 227, 43, 0.35);
        }
        .subscribe-btn:hover {
            background: #c9f542;
            box-shadow: 0 0 30px rgba(183, 227, 43, 0.5);
            transform: translateY(-1px);
        }
        .subscribe-btn:active {
            transform: scale(0.97);
        }
        .icon-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            min-height: 60px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }
        .icon-nav::-webkit-scrollbar {
            display: none;
        }
        .icon-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            min-width: 72px;
            padding: 8px 10px;
            border-radius: 12px;
            color: var(--muted);
            font-size: 0.75rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            flex-shrink: 0;
            border: 1px solid transparent;
        }
        .icon-nav-item:hover {
            color: var(--primary);
            background: var(--surface);
            border-color: var(--border);
        }
        .icon-nav-item.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0 0 8px 8px;
        }
        .icon-nav-item svg {
            width: 22px;
            height: 22px;
        }
        .section {
            padding: 72px 0;
            position: relative;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
        }
        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-dark {
            background: #0a0d0b;
        }
        .section-title {
            font-size: 1.875rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            line-height: 1.3;
            margin-bottom: 12px;
            color: var(--text);
        }
        .section-sub {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.8;
        }
        .highlight {
            color: var(--primary);
        }
        .accent {
            color: var(--accent);
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(183, 227, 43, 0.12);
            color: var(--primary);
            border: 1px solid rgba(183, 227, 43, 0.3);
            white-space: nowrap;
        }
        .tag-accent {
            background: rgba(255, 106, 61, 0.12);
            color: var(--accent);
            border-color: rgba(255, 106, 61, 0.3);
        }
        .tag-danger {
            background: rgba(244, 63, 94, 0.12);
            color: var(--danger);
            border-color: rgba(244, 63, 94, 0.3);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 0.9375rem;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .btn:active {
            transform: scale(0.97);
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #0c0f0d;
            box-shadow: 0 0 20px rgba(183, 227, 43, 0.35);
        }
        .btn-primary:hover {
            background: #c9f542;
            box-shadow: 0 0 30px rgba(183, 227, 43, 0.5);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: var(--surface-2);
            color: var(--text);
            border-color: var(--border);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 16px rgba(183, 227, 43, 0.2);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(183, 227, 43, 0.1);
            box-shadow: 0 0 16px rgba(183, 227, 43, 0.25);
        }
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.25s ease;
            position: relative;
        }
        .card:hover {
            border-color: rgba(183, 227, 43, 0.6);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(183, 227, 43, 0.12);
        }
        .badge-corner {
            position: absolute;
            top: 12px;
            right: 12px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(12, 15, 13, 0.85);
            color: var(--primary);
            border: 1px solid rgba(183, 227, 43, 0.5);
            backdrop-filter: blur(4px);
        }
        .badge-corner.accent {
            color: var(--accent);
            border-color: rgba(255, 106, 61, 0.5);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #4a544c;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        @media (max-width: 768px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr;
            }
        }
        .stat-card {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 20px;
            text-align: center;
            transition: all 0.2s;
        }
        .stat-card:hover {
            border-color: rgba(183, 227, 43, 0.5);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.8125rem;
            color: var(--muted);
            margin-top: 4px;
        }
        .video-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 992px) {
            .video-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .video-card-grid {
                grid-template-columns: 1fr;
            }
        }
        .video-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .video-card:hover {
            border-color: rgba(183, 227, 43, 0.6);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(183, 227, 43, 0.12);
        }
        .video-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--surface-2);
        }
        .video-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .video-card:hover .video-card-img img {
            transform: scale(1.04);
        }
        .video-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .video-card-title {
            font-size: 1.0625rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text);
        }
        .video-card-title a:hover {
            color: var(--primary);
        }
        .video-card-desc {
            font-size: 0.875rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .video-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            font-size: 0.75rem;
            color: var(--muted);
            flex-wrap: wrap;
        }
        .step-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            position: relative;
            transition: all 0.25s ease;
        }
        .step-card:hover {
            border-color: rgba(183, 227, 43, 0.6);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            color: #0c0f0d;
            font-weight: 900;
            font-size: 0.9375rem;
            margin-bottom: 14px;
        }
        .step-title {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .step-desc {
            font-size: 0.9375rem;
            color: var(--muted);
            line-height: 1.75;
        }
        .rank-list {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 8px;
            scrollbar-width: none;
            -ms-overflow-style: none;
            -webkit-overflow-scrolling: touch;
        }
        .rank-list::-webkit-scrollbar {
            display: none;
        }
        .rank-card {
            min-width: 240px;
            max-width: 260px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            flex-shrink: 0;
            transition: all 0.25s ease;
            position: relative;
        }
        .rank-card:hover {
            border-color: rgba(183, 227, 43, 0.6);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
        }
        .rank-number {
            font-size: 2.5rem;
            font-weight: 900;
            line-height: 1;
            color: var(--accent);
        }
        .rank-title {
            font-size: 1rem;
            font-weight: 700;
            margin: 8px 0 4px;
            color: var(--text);
        }
        .rank-meta {
            font-size: 0.75rem;
            color: var(--muted);
        }
        .device-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 768px) {
            .device-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .device-grid {
                grid-template-columns: 1fr;
            }
        }
        .device-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            transition: all 0.25s ease;
        }
        .device-card:hover {
            border-color: rgba(183, 227, 43, 0.6);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
        }
        .device-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--surface-2);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--primary);
        }
        .device-icon svg {
            width: 28px;
            height: 28px;
        }
        .device-name {
            font-size: 1.0625rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text);
        }
        .device-desc {
            font-size: 0.8125rem;
            color: var(--muted);
        }
        .scoreboard-row {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 18px 20px;
            margin-bottom: 12px;
            transition: all 0.2s;
        }
        .scoreboard-row:hover {
            border-color: rgba(183, 227, 43, 0.5);
            background: var(--surface-2);
        }
        .scoreboard-label {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text);
            min-width: 120px;
            flex-shrink: 0;
        }
        .scoreboard-bar {
            flex: 1;
            height: 10px;
            background: var(--surface-2);
            border-radius: 999px;
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .scoreboard-fill {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary), #6a9e12);
            transition: width 0.6s ease;
        }
        .scoreboard-fill.accent {
            background: linear-gradient(90deg, var(--accent), #d44d1a);
        }
        .scoreboard-value {
            font-size: 0.9375rem;
            font-weight: 700;
            color: var(--primary);
            min-width: 64px;
            text-align: right;
            flex-shrink: 0;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.2s;
        }
        .faq-item:hover {
            border-color: rgba(183, 227, 43, 0.4);
        }
        .faq-button {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            text-align: left;
            transition: all 0.2s;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
        }
        .faq-button:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--surface-2);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: all 0.25s;
            font-size: 1.25rem;
            font-weight: 700;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-panel {
            max-height: 300px;
            padding: 0 22px 20px;
        }
        .faq-answer {
            font-size: 0.9375rem;
            color: var(--muted);
            line-height: 1.8;
        }
        .cta-band {
            background: var(--surface-2);
            border: 1px solid rgba(183, 227, 43, 0.4);
            border-radius: var(--radius-card);
            padding: 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            top: -60%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(183, 227, 43, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-title {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text);
        }
        .cta-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .site-footer {
            background: #0a0d0b;
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 15px;
            border-radius: 10px;
        }
        .footer-brand .brand-name {
            font-size: 1.125rem;
        }
        .footer-desc {
            font-size: 0.875rem;
            color: var(--muted);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul a {
            font-size: 0.875rem;
            color: var(--muted);
            transition: color 0.2s;
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            font-size: 0.8125rem;
            color: var(--muted);
            text-align: center;
        }

/* roulang page: article */
:root {
            --bg: #0c0f0d;
            --surface: #161b17;
            --surface-2: #1d241f;
            --primary: #b7e32b;
            --accent: #ff6a3d;
            --danger: #f43f5e;
            --text: #f4f2e8;
            --muted: #8e9a8f;
            --border: #2c362e;
            --shadow: rgba(0, 0, 0, 0.6);
            --radius-card: 18px;
            --radius-btn: 12px;
            --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
            --font-display: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            appearance: none;
            -webkit-appearance: none;
            border: none;
            background: transparent;
            color: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(12, 15, 13, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
            flex-wrap: nowrap;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), #6a9e12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 18px;
            color: #0c0f0d;
            flex-shrink: 0;
            box-shadow: 0 0 24px rgba(183, 227, 43, 0.3);
        }
        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: var(--text);
        }
        .brand-name:hover {
            color: var(--primary);
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .icon-btn {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--surface);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            color: var(--muted);
        }
        .icon-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 16px rgba(183, 227, 43, 0.2);
        }
        .icon-btn:active {
            transform: scale(0.95);
        }
        .subscribe-btn {
            padding: 0 20px;
            height: 44px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.875rem;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            box-shadow: 0 0 20px rgba(183, 227, 43, 0.35);
        }
        .subscribe-btn:hover {
            background: #c9f542;
            box-shadow: 0 0 30px rgba(183, 227, 43, 0.5);
            transform: translateY(-1px);
        }
        .subscribe-btn:active {
            transform: scale(0.97);
        }
        .icon-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            min-height: 60px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 4px 0;
        }
        .icon-nav::-webkit-scrollbar {
            display: none;
        }
        .icon-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            min-width: 72px;
            padding: 8px 10px;
            border-radius: 12px;
            color: var(--muted);
            font-size: 0.75rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
            flex-shrink: 0;
            border: 1px solid transparent;
        }
        .icon-nav-item:hover {
            color: var(--primary);
            background: var(--surface);
            border-color: var(--border);
        }
        .icon-nav-item.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0 0 8px 8px;
        }
        .icon-nav-item svg {
            width: 22px;
            height: 22px;
        }

        /* Main & Sections */
        main {
            min-height: 60vh;
        }
        section {
            padding: 64px 0;
        }
        .section-dark {
            background: var(--bg);
        }
        .section-surface {
            background: var(--surface);
        }
        .section-grid-bg {
            background-image: linear-gradient(rgba(183, 227, 43, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(183, 227, 43, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        /* Section Headings */
        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 12px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--muted);
            margin: 0 0 32px;
            line-height: 1.7;
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-head .section-title {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .title-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(183, 227, 43, 0.12);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            border: 1px solid rgba(183, 227, 43, 0.3);
        }

        /* Article Hero */
        .article-hero {
            position: relative;
            padding: 48px 0 32px;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
            opacity: 0.7;
        }
        .article-hero-grid {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 40px;
            align-items: center;
        }
        .article-hero-content {
            min-width: 0;
        }
        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 106, 61, 0.15);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255, 106, 61, 0.35);
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 16px;
            line-height: 1.4;
        }
        .article-hero-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--muted);
            font-size: 0.875rem;
        }
        .article-hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero-cover {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: 0 20px 50px var(--shadow);
            aspect-ratio: 16/9;
            position: relative;
        }
        .article-hero-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-hero-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(12, 15, 13, 0.5));
            pointer-events: none;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--muted);
            flex-wrap: wrap;
            padding: 16px 0;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--border);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }

        /* Article Body */
        .article-body-section {
            padding: 40px 0 56px;
        }
        .article-body {
            max-width: 820px;
            margin: 0 auto;
            font-size: 17px;
            line-height: 1.9;
            color: #e8e5d8;
        }
        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text);
            margin: 2em 0 0.8em;
            padding-bottom: 0.4em;
            border-bottom: 2px solid var(--border);
        }
        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin: 1.6em 0 0.6em;
        }
        .article-body p {
            margin: 0 0 1.25em;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 1.5em;
            padding-left: 1.5em;
            color: #e8e5d8;
        }
        .article-body ul li,
        .article-body ol li {
            margin-bottom: 0.5em;
        }
        .article-body img {
            border-radius: var(--radius-card);
            margin: 1.5em 0;
            border: 1px solid var(--border);
            box-shadow: 0 10px 30px var(--shadow);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--surface);
            padding: 16px 20px;
            margin: 1.5em 0;
            border-radius: 0 12px 12px 0;
            color: #d8d4c4;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            background: var(--surface);
            border-radius: var(--radius-card);
            overflow: hidden;
        }
        .article-body table th,
        .article-body table td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
        }
        .article-body table th {
            background: var(--surface-2);
            color: var(--text);
            font-weight: 700;
        }
        .article-body code {
            background: var(--surface-2);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.85em;
            color: var(--primary);
        }

        /* Inline CTA */
        .inline-cta {
            max-width: 820px;
            margin: 32px auto;
            background: linear-gradient(135deg, rgba(183, 227, 43, 0.12), rgba(183, 227, 43, 0.04));
            border: 1px solid rgba(183, 227, 43, 0.3);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .inline-cta p {
            margin: 0;
            color: #d8d4c4;
            font-size: 0.95rem;
            font-weight: 500;
        }
        .inline-cta a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--primary);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.875rem;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            box-shadow: 0 0 16px rgba(183, 227, 43, 0.3);
        }
        .inline-cta a:hover {
            background: #c9f542;
            box-shadow: 0 0 24px rgba(183, 227, 43, 0.5);
            transform: translateY(-1px);
        }

        /* Tags */
        .article-tags {
            max-width: 820px;
            margin: 32px auto;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 14px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 0.8rem;
            color: var(--muted);
            transition: all 0.2s ease;
        }
        .article-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(183, 227, 43, 0.08);
        }

        /* Related Cards */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .related-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.25s ease;
            cursor: pointer;
            display: block;
        }
        .related-card:hover {
            border-color: var(--primary);
            box-shadow: 0 12px 40px var(--shadow), 0 0 20px rgba(183, 227, 43, 0.15);
            transform: translateY(-3px);
        }
        .related-card:hover .related-card-title {
            color: var(--primary);
        }
        .related-card-cover {
            aspect-ratio: 16/9;
            background: var(--surface-2);
            position: relative;
            overflow: hidden;
        }
        .related-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .related-card:hover .related-card-cover img {
            transform: scale(1.04);
        }
        .related-card-body {
            padding: 16px;
        }
        .related-card-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s ease;
        }
        .related-card-meta {
            font-size: 0.75rem;
            color: var(--muted);
        }

        /* Pagination */
        .article-pagination {
            max-width: 820px;
            margin: 40px auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .pagination-link {
            display: block;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 16px 20px;
            transition: all 0.2s ease;
        }
        .pagination-link:hover {
            border-color: var(--primary);
            box-shadow: 0 8px 24px var(--shadow);
        }
        .pagination-link:hover .pagination-label {
            color: var(--primary);
        }
        .pagination-label {
            font-size: 0.75rem;
            color: var(--muted);
            margin-bottom: 6px;
            transition: color 0.2s ease;
        }
        .pagination-link-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .pagination-link.next {
            text-align: right;
        }

        /* Subscribe Bottom Section */
        .subscribe-section {
            background: linear-gradient(135deg, rgba(183, 227, 43, 0.08), rgba(255, 106, 61, 0.06));
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 56px 0;
        }
        .subscribe-box {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }
        .subscribe-box h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 12px;
        }
        .subscribe-box p {
            color: var(--muted);
            margin: 0 0 24px;
            font-size: 0.95rem;
        }
        .subscribe-actions {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--primary);
            color: #0c0f0d;
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: 0 0 20px rgba(183, 227, 43, 0.35);
        }
        .btn-primary:hover {
            background: #c9f542;
            box-shadow: 0 0 30px rgba(183, 227, 43, 0.5);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(183, 227, 43, 0.06);
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }

        /* Footer */
        .site-footer {
            background: #080a08;
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 15px;
            border-radius: 10px;
        }
        .footer-brand .brand-name {
            font-size: 1.05rem;
        }
        .footer-desc {
            color: var(--muted);
            font-size: 0.875rem;
            line-height: 1.7;
            margin: 0;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul a {
            color: var(--muted);
            font-size: 0.85rem;
            transition: color 0.2s ease;
        }
        .footer-col ul a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            color: var(--muted);
            font-size: 0.8rem;
            text-align: center;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-hero-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .article-hero-cover {
                aspect-ratio: 21/9;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            section {
                padding: 40px 0;
            }
            .article-hero {
                padding: 32px 0 24px;
            }
            .article-hero h1 {
                font-size: 1.5rem;
            }
            .article-hero-cover {
                aspect-ratio: 16/9;
            }
            .article-body {
                font-size: 16px;
                line-height: 1.85;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .inline-cta {
                flex-direction: column;
                text-align: center;
            }
            .article-pagination {
                grid-template-columns: 1fr;
            }
            .pagination-link.next {
                text-align: left;
            }
            .subscribe-box h2 {
                font-size: 1.25rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand-name {
                font-size: 1rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
                border-radius: 10px;
            }
            .subscribe-btn {
                padding: 0 14px;
                height: 38px;
                font-size: 0.78rem;
            }
            .article-hero h1 {
                font-size: 1.3rem;
            }
            .article-hero-meta {
                gap: 12px;
                font-size: 0.8rem;
            }
            .article-body {
                font-size: 15px;
                line-height: 1.8;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
        }