/* roulang page: index */
:root {
            --bg-primary: #0E0F13;
            --bg-secondary: #1A1B21;
            --bg-tertiary: #15161C;
            --accent-primary: #C026D3;
            --accent-secondary: #E879F9;
            --accent-cyan: #22D3EE;
            --accent-green: #A3E635;
            --accent-amber: #F59E0B;
            --text-primary: #F8FAFC;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: rgba(148, 163, 184, 0.16);
            --border-hover: rgba(192, 38, 211, 0.55);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 8px 32px rgba(192, 38, 211, 0.18);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Inter', 'Roboto', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Orbitron', 'Inter', 'Roboto', monospace;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            background-color: var(--bg-primary);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-primary);
            font-weight: 700;
            line-height: 1.35;
            margin-top: 0;
        }

        h1 {
            font-size: clamp(1.55rem, 3.2vw, 2.15rem);
            font-weight: 800;
        }

        h2 {
            font-size: clamp(1.35rem, 2.5vw, 1.75rem);
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        h3 {
            font-size: clamp(1.1rem, 1.8vw, 1.28rem);
            font-weight: 600;
        }

        p {
            margin-bottom: 0.85rem;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        section {
            padding: 4.5rem 0;
            position: relative;
        }

        .section-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.12);
            border: 1px solid rgba(192, 38, 211, 0.3);
            border-radius: 50px;
            padding: 0.3rem 0.9rem;
            margin-bottom: 0.7rem;
            text-transform: uppercase;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 720px;
            margin-bottom: 1.8rem;
            line-height: 1.8;
        }

        .text-glow-purple {
            text-shadow: 0 0 20px rgba(192, 38, 211, 0.45);
        }

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

        .text-cyan {
            color: var(--accent-cyan);
        }

        .text-amber {
            color: var(--accent-amber);
        }

        /* Buttons */
        .btn-pg-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--accent-primary);
            color: #fff;
            border: 1px solid var(--accent-secondary);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.25);
        }

        .btn-pg-primary:hover {
            background: var(--accent-secondary);
            color: #fff;
            box-shadow: 0 6px 24px rgba(192, 38, 211, 0.45);
            transform: translateY(-1px);
        }

        .btn-pg-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(192, 38, 211, 0.3);
        }

        .btn-pg-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-pg-outline:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
            border-color: rgba(34, 211, 238, 0.7);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.2);
            transform: translateY(-1px);
        }

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

        .btn-pg-amber {
            background: var(--accent-amber);
            color: #1A1B21;
            border: 1px solid rgba(245, 158, 11, 0.6);
            font-weight: 700;
        }

        .btn-pg-amber:hover {
            background: #FBBF24;
            color: #1A1B21;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(14, 15, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(14, 15, 19, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.7rem 0;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-primary);
            text-decoration: none;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.4);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.4rem 0.9rem;
            min-width: 220px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .header-search:focus-within {
            border-color: var(--accent-primary);
            box-shadow: 0 0 16px rgba(192, 38, 211, 0.25);
        }

        .header-search i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .header-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            width: 100%;
            outline: none;
        }

        .header-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 0.5rem 0;
            flex-wrap: wrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-color) transparent;
        }

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

        .nav-channels::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 3px;
        }

        .nav-link-pg {
            color: var(--text-secondary);
            font-size: 0.88rem;
            font-weight: 500;
            padding: 0.35rem 0.7rem;
            border-radius: 6px;
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-link-pg:hover {
            color: var(--text-primary);
            background: rgba(148, 163, 184, 0.08);
        }

        .nav-link-pg.active {
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.15);
            border: 1px solid rgba(192, 38, 211, 0.3);
        }

        .hot-tags {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            flex-wrap: wrap;
        }

        .hot-tag {
            font-size: 0.72rem;
            color: var(--accent-amber);
            border: 1px solid rgba(245, 158, 11, 0.4);
            background: rgba(245, 158, 11, 0.06);
            border-radius: 50px;
            padding: 0.2rem 0.7rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .hot-tag:hover {
            background: rgba(245, 158, 11, 0.15);
            color: #FBBF24;
            border-color: rgba(245, 158, 11, 0.7);
        }

        .nav-toggle-btn {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            border-radius: 8px;
            padding: 0.45rem 0.7rem;
            font-size: 1.15rem;
            display: none;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .nav-toggle-btn:hover {
            border-color: var(--accent-primary);
            color: var(--accent-secondary);
        }

        @media (max-width: 991.98px) {
            .header-search {
                min-width: 160px;
            }
            .nav-channels {
                gap: 0.4rem;
            }
            .nav-link-pg {
                font-size: 0.8rem;
                padding: 0.3rem 0.55rem;
            }
        }

        @media (max-width: 767.98px) {
            .nav-toggle-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .header-search {
                display: none;
            }
            .header-search.mobile-show {
                display: flex;
                width: 100%;
                order: 3;
            }
            .nav-channels {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 0.25rem;
                padding: 0.5rem 0;
            }
            .nav-channels.mobile-show {
                display: flex;
            }
            .nav-link-pg {
                padding: 0.55rem 0.8rem;
                font-size: 0.9rem;
                border-radius: 8px;
                display: block;
                width: 100%;
            }
            .hot-tags {
                display: none;
                padding: 0.5rem 0;
                order: 4;
            }
            .hot-tags.mobile-show {
                display: flex;
            }
            .header-brand-row {
                flex-wrap: wrap;
            }
        }

        /* Hero Section */
        .hero-section {
            padding: 3rem 0 4rem;
            background:
                radial-gradient(ellipse at 70% 20%, rgba(192, 38, 211, 0.18) 0%, transparent 55%),
                radial-gradient(ellipse at 20% 80%, rgba(34, 211, 238, 0.1) 0%, transparent 45%),
                var(--bg-primary);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                linear-gradient(rgba(148, 163, 184, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(148, 163, 184, 0.05) 1px, transparent 1px);
            background-size: 52px 52px;
            pointer-events: none;
            z-index: 0;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.1);
            border: 1px solid rgba(192, 38, 211, 0.3);
            border-radius: 50px;
            padding: 0.35rem 1rem;
            margin-bottom: 1rem;
            letter-spacing: 0.06em;
        }

        .hero-title {
            font-size: clamp(1.65rem, 3.5vw, 2.4rem);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.9rem;
            letter-spacing: 0.02em;
        }

        .hero-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 1.3rem;
            line-height: 1.85;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 1.2rem;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 0.8rem;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 0.1rem;
        }

        .hero-stat-value {
            font-family: var(--font-mono);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-secondary);
            letter-spacing: 0.04em;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }

        .hero-stage {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 1rem;
        }

        .hero-stage-frame {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.55), var(--shadow-glow);
            width: 100%;
            max-width: 520px;
            transition: all var(--transition-base);
        }

        .hero-stage-frame:hover {
            border-color: var(--border-hover);
            box-shadow: 0 20px 56px rgba(0, 0, 0, 0.65), 0 0 32px rgba(192, 38, 211, 0.25);
        }

        .hero-stage-frame img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }

        .hero-stage-caption {
            padding: 0.7rem 1rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .hero-stage-caption .live-indicator {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.75rem;
            color: var(--accent-green);
        }

        .hero-stage-caption .live-dot {
            width: 7px;
            height: 7px;
            background: var(--accent-green);
            border-radius: 50%;
            animation: live-pulse 1.8s ease-in-out infinite;
        }

        @keyframes live-pulse {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 6px var(--accent-green);
            }
            50% {
                opacity: 0.5;
                box-shadow: 0 0 12px var(--accent-green);
            }
        }

        .hero-side-item {
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            padding: 0.7rem 0.9rem;
            background: rgba(26, 27, 33, 0.75);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            margin-bottom: 0.6rem;
            backdrop-filter: blur(8px);
        }

        .hero-side-item:hover {
            border-color: var(--border-hover);
            background: rgba(26, 27, 33, 0.95);
        }

        .hero-side-item .icon-box {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.85rem;
        }

        .icon-purple {
            background: rgba(192, 38, 211, 0.15);
            color: var(--accent-secondary);
        }
        .icon-cyan {
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
        }
        .icon-amber {
            background: rgba(245, 158, 11, 0.13);
            color: var(--accent-amber);
        }
        .icon-green {
            background: rgba(163, 230, 53, 0.12);
            color: var(--accent-green);
        }

        .hero-side-item .side-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
        }

        .hero-side-item .side-text strong {
            color: var(--text-primary);
            display: block;
            font-size: 0.88rem;
        }

        @media (max-width: 991.98px) {
            .hero-section {
                padding: 2.5rem 0 3rem;
            }
            .hero-stage {
                margin-top: 1rem;
            }
        }

        /* Entry Matrix Section */
        .entry-matrix-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .entry-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            cursor: pointer;
            text-decoration: none;
        }

        .entry-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover), 0 0 20px rgba(192, 38, 211, 0.15);
        }

        .entry-card .entry-thumb {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #1A1B21;
            position: relative;
        }

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

        .entry-card:hover .entry-thumb img {
            transform: scale(1.05);
        }

        .entry-card .entry-badge {
            position: absolute;
            top: 0.6rem;
            left: 0.6rem;
            font-size: 0.7rem;
            font-weight: 700;
            color: #fff;
            background: rgba(192, 38, 211, 0.85);
            border-radius: 4px;
            padding: 0.2rem 0.55rem;
            letter-spacing: 0.06em;
        }

        .entry-card .entry-body {
            padding: 1.1rem 1.2rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .entry-card .entry-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.35rem;
        }

        .entry-card .entry-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0.8rem;
            line-height: 1.6;
            flex: 1;
        }

        .entry-card .entry-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            transition: color var(--transition-fast);
        }

        .entry-card:hover .entry-link {
            color: var(--accent-secondary);
        }

        /* Milestone Section */
        .milestone-section {
            background: var(--bg-primary);
            position: relative;
        }

        .milestone-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(192, 38, 211, 0.5), rgba(34, 211, 238, 0.4), transparent);
            border-radius: 2px;
        }

        .milestone-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
            margin-top: 1.5rem;
        }

        .milestone-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.4rem 1.2rem;
            text-align: center;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .milestone-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-cyan));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

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

        .milestone-number {
            font-family: var(--font-mono);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-secondary);
            letter-spacing: 0.03em;
            line-height: 1;
            margin-bottom: 0.4rem;
        }

        .milestone-number .unit {
            font-size: 1rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
            margin-left: 0.2rem;
        }

        .milestone-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .milestone-note {
            font-size: 0.72rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        @media (max-width: 767.98px) {
            .milestone-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.8rem;
            }
            .milestone-number {
                font-size: 1.6rem;
            }
        }

        /* News / Info List Section */
        .news-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .news-list-item {
            display: flex;
            gap: 1rem;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1rem;
            margin-bottom: 0.9rem;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }

        .news-list-item:hover {
            border-color: var(--border-hover);
            transform: translateX(4px);
            box-shadow: var(--shadow-card);
        }

        .news-list-item .news-thumb {
            width: 140px;
            min-width: 140px;
            aspect-ratio: 16/10;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: #1A1B21;
        }

        .news-list-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-list-item .news-content {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-list-item .news-tags {
            display: flex;
            gap: 0.4rem;
            flex-wrap: wrap;
            margin-bottom: 0.35rem;
        }

        .news-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.1);
            border: 1px solid rgba(192, 38, 211, 0.25);
            border-radius: 4px;
            padding: 0.12rem 0.55rem;
            letter-spacing: 0.04em;
        }

        .news-tag.amber {
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.1);
            border-color: rgba(245, 158, 11, 0.3);
        }

        .news-tag.cyan {
            color: var(--accent-cyan);
            background: rgba(34, 211, 238, 0.08);
            border-color: rgba(34, 211, 238, 0.25);
        }

        .news-list-item .news-title {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
            line-height: 1.45;
        }

        .news-list-item .news-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0.4rem;
            flex: 1;
        }

        .news-list-item .news-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .news-list-item .news-meta i {
            font-size: 0.65rem;
            margin-right: 0.25rem;
        }

        .news-side-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.2rem;
            margin-bottom: 1rem;
            transition: all var(--transition-base);
        }

        .news-side-card:hover {
            border-color: var(--border-hover);
        }

        .news-side-card .side-card-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.7rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .news-side-card .trend-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.45rem 0;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
            font-size: 0.85rem;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .news-side-card .trend-item:hover {
            color: var(--accent-secondary);
        }

        .news-side-card .trend-item .trend-count {
            font-size: 0.7rem;
            color: var(--text-muted);
            background: rgba(148, 163, 184, 0.08);
            border-radius: 4px;
            padding: 0.1rem 0.45rem;
        }

        @media (max-width: 767.98px) {
            .news-list-item {
                flex-direction: column;
            }
            .news-list-item .news-thumb {
                width: 100%;
                aspect-ratio: 16/8;
            }
        }

        /* Platform Guarantee Section */
        .guarantee-section {
            background: var(--bg-primary);
        }

        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            margin-top: 1.2rem;
        }

        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            padding: 1rem 1.1rem;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
        }

        .guarantee-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-tertiary);
        }

        .guarantee-item .guarantee-icon {
            width: 40px;
            height: 40px;
            min-width: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .guarantee-item .guarantee-text h4 {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.2rem;
        }

        .guarantee-item .guarantee-text p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        @media (max-width: 991.98px) {
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Brand Intro Section */
        .brand-intro-section {
            background:
                linear-gradient(rgba(14, 15, 19, 0.92), rgba(14, 15, 19, 0.96)),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat fixed;
            background-attachment: scroll;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }

        .brand-intro-panel {
            background: rgba(26, 27, 33, 0.85);
            border: 1px solid rgba(192, 38, 211, 0.25);
            border-radius: var(--radius-lg);
            padding: 2.2rem;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card), 0 0 40px rgba(192, 38, 211, 0.1);
            max-width: 820px;
            margin: 0 auto;
        }

        .brand-intro-panel p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.85;
            margin-bottom: 0.8rem;
        }

        .brand-intro-panel p:last-child {
            margin-bottom: 0;
        }

        /* Reviews Section */
        .reviews-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .review-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.4rem;
            height: 100%;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .review-card .review-header {
            display: flex;
            align-items: center;
            gap: 0.7rem;
            margin-bottom: 0.8rem;
        }

        .review-card .review-avatar {
            width: 42px;
            height: 42px;
            min-width: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
        }

        .review-card .review-user {
            flex: 1;
        }

        .review-card .review-user h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.1rem;
        }

        .review-card .review-user .review-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .review-card .review-stars {
            color: var(--accent-amber);
            font-size: 0.75rem;
            letter-spacing: 0.15em;
        }

        .review-card .review-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 0;
        }

        /* Partner Tags Section */
        .partner-tags-section {
            background: var(--bg-primary);
        }

        .partner-tag-item {
            display: flex;
            align-items: flex-start;
            gap: 0.7rem;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0.9rem 1rem;
            transition: all var(--transition-base);
            height: 100%;
        }

        .partner-tag-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-tertiary);
        }

        .partner-tag-item .partner-icon {
            font-size: 1.1rem;
            color: var(--accent-cyan);
            flex-shrink: 0;
            width: 24px;
            text-align: center;
        }

        .partner-tag-item h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.15rem;
        }

        .partner-tag-item p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.55;
        }

        /* App Download Section */
        .app-download-section {
            background:
                linear-gradient(rgba(14, 15, 19, 0.9), rgba(14, 15, 19, 0.95)),
                url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            background-attachment: scroll;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .app-download-panel {
            background: rgba(26, 27, 33, 0.88);
            border: 1px solid rgba(34, 211, 238, 0.25);
            border-radius: var(--radius-lg);
            padding: 2rem;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .app-download-panel .app-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            justify-content: center;
            margin-top: 1.2rem;
        }

        .app-version-chip {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.8rem;
            color: var(--text-secondary);
            background: rgba(148, 163, 184, 0.08);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.35rem 0.9rem;
            margin-bottom: 0.3rem;
        }

        .app-version-chip i {
            color: var(--accent-green);
            font-size: 0.7rem;
        }

        /* FAQ Section */
        .faq-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .faq-item {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 0.7rem;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item.active {
            border-color: var(--border-hover);
            box-shadow: 0 4px 16px rgba(192, 38, 211, 0.12);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            padding: 1rem 1.2rem;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-primary);
            text-align: left;
            transition: all var(--transition-fast);
            font-family: var(--font-sans);
        }

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

        .faq-question .faq-arrow {
            color: var(--text-muted);
            font-size: 0.75rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-secondary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 1.2rem;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 1.2rem 1.1rem;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
            padding-top: 0.3rem;
            border-top: 1px solid rgba(148, 163, 184, 0.1);
        }

        /* CTA Section */
        .cta-section {
            background:
                radial-gradient(ellipse at center, rgba(192, 38, 211, 0.2) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(34, 211, 238, 0.12) 0%, transparent 40%),
                var(--bg-primary);
            text-align: center;
            padding: 4rem 0;
        }

        .cta-section .cta-title {
            font-size: clamp(1.4rem, 2.5vw, 1.9rem);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.7rem;
        }

        .cta-section .cta-desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 1.5rem;
            line-height: 1.75;
        }

        .cta-section .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background: #0B0C10;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.7rem;
        }

        .footer-brand .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: #fff;
            font-weight: 700;
        }

        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.7;
            color: var(--text-muted);
            max-width: 280px;
        }

        .footer-heading {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            letter-spacing: 0.04em;
        }

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

        .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.85rem;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent-secondary);
        }

        .footer-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }

        .footer-tag-cloud .footer-tag {
            font-size: 0.72rem;
            color: var(--text-muted);
            background: rgba(148, 163, 184, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.2rem 0.65rem;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .footer-tag-cloud .footer-tag:hover {
            color: var(--accent-cyan);
            border-color: rgba(34, 211, 238, 0.4);
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .footer-contact-item i {
            color: var(--accent-cyan);
            font-size: 0.8rem;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            margin-top: 2rem;
            padding-top: 1.2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom .footer-sep {
            margin: 0 0.4rem;
            opacity: 0.5;
        }

        @media (max-width: 767.98px) {
            section {
                padding: 3rem 0;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .brand-intro-panel {
                padding: 1.4rem;
            }
            .app-download-panel {
                padding: 1.4rem;
            }
            .hero-stats-row {
                gap: 1rem;
            }
            .hero-stat-value {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            section {
                padding: 2.2rem 0;
            }
            .hero-title {
                font-size: 1.45rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .btn-pg-primary,
            .btn-pg-outline {
                padding: 0.6rem 1.2rem;
                font-size: 0.88rem;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .review-card {
                padding: 1.1rem;
            }
            .faq-question {
                font-size: 0.85rem;
                padding: 0.85rem 1rem;
            }
        }

        /* Utility */
        .divider-glow {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(192, 38, 211, 0.4), rgba(34, 211, 238, 0.3), transparent);
            border: none;
            margin: 0;
            opacity: 0.7;
        }

        .mt-gap {
            margin-top: 0.5rem;
        }

        .count-up {
            transition: all 0.3s ease;
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0E0F13;
            --bg-secondary: #1A1B21;
            --bg-tertiary: #15161C;
            --accent-primary: #C026D3;
            --accent-secondary: #E879F9;
            --accent-cyan: #22D3EE;
            --accent-green: #A3E635;
            --accent-amber: #F59E0B;
            --text-primary: #F8FAFC;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: rgba(148, 163, 184, 0.16);
            --border-hover: rgba(192, 38, 211, 0.55);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 8px 32px rgba(192, 38, 211, 0.18);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Inter', 'Roboto', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Orbitron', 'Inter', 'Roboto', monospace;
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            background-color: var(--bg-primary);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        
        a:hover {
            color: var(--accent-secondary);
        }
        
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        
        section {
            padding: 4.5rem 0;
            position: relative;
        }
        
        .section-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.12);
            border: 1px solid rgba(192, 38, 211, 0.3);
            border-radius: 50px;
            padding: 0.3rem 0.9rem;
            margin-bottom: 0.7rem;
            text-transform: uppercase;
        }
        
        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 720px;
            margin-bottom: 1.8rem;
            line-height: 1.8;
        }
        
        .text-glow-purple {
            text-shadow: 0 0 20px rgba(192, 38, 211, 0.45);
        }
        
        .text-accent {
            color: var(--accent-secondary);
        }
        
        .text-cyan {
            color: var(--accent-cyan);
        }
        
        .text-amber {
            color: var(--accent-amber);
        }
        
        .btn-pg-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--accent-primary);
            color: #fff;
            border: 1px solid var(--accent-secondary);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.25);
        }
        
        .btn-pg-primary:hover {
            background: var(--accent-secondary);
            color: #fff;
            box-shadow: 0 6px 24px rgba(192, 38, 211, 0.45);
            transform: translateY(-1px);
        }
        
        .btn-pg-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(192, 38, 211, 0.3);
        }
        
        .btn-pg-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }
        
        .btn-pg-outline:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
            border-color: rgba(34, 211, 238, 0.7);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.2);
            transform: translateY(-1px);
        }
        
        .btn-pg-outline:active {
            transform: translateY(0);
        }
        
        .btn-pg-amber {
            background: var(--accent-amber);
            color: #1A1B21;
            border: 1px solid rgba(245, 158, 11, 0.6);
            font-weight: 700;
        }
        
        .btn-pg-amber:hover {
            background: #FBBF24;
            color: #1A1B21;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        }
        
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(14, 15, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition-base);
        }
        
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            background: rgba(14, 15, 19, 0.97);
        }
        
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: 1rem;
            flex-wrap: wrap;
        }
        
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.1rem;
            text-decoration: none;
            white-space: nowrap;
        }
        
        .brand-logo:hover {
            color: var(--text-primary);
        }
        
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: rgba(192, 38, 211, 0.15);
            border: 1px solid rgba(192, 38, 211, 0.35);
            border-radius: var(--radius-sm);
            color: var(--accent-secondary);
            font-size: 1rem;
        }
        
        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.45rem 1rem;
            min-width: 260px;
            transition: all var(--transition-fast);
        }
        
        .header-search:focus-within {
            border-color: var(--border-hover);
            box-shadow: 0 0 12px rgba(192, 38, 211, 0.25);
        }
        
        .header-search i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        
        .header-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            outline: none;
            width: 100%;
        }
        
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        
        .nav-toggle-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 0.5rem 0.75rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        
        .nav-toggle-btn:hover {
            border-color: var(--border-hover);
            color: var(--accent-secondary);
        }
        
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            padding: 0.4rem 0 0.5rem;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        
        .nav-link-pg {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            text-decoration: none;
            border-radius: 50px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        
        .nav-link-pg:hover {
            color: var(--text-primary);
            background: rgba(192, 38, 211, 0.08);
            border-color: rgba(192, 38, 211, 0.2);
        }
        
        .nav-link-pg.active {
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.14);
            border-color: rgba(192, 38, 211, 0.4);
            font-weight: 600;
        }
        
        .hot-tags {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 0 0.6rem;
            flex-wrap: wrap;
        }
        
        .hot-tag {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            font-size: 0.75rem;
            color: var(--accent-amber);
            border: 1px solid rgba(245, 158, 11, 0.35);
            border-radius: 50px;
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        
        .hot-tag:hover {
            background: rgba(245, 158, 11, 0.12);
            border-color: rgba(245, 158, 11, 0.6);
            color: var(--accent-amber);
        }
        
        .breadcrumb-bar {
            background: var(--bg-tertiary);
            border-bottom: 1px solid var(--border-color);
            padding: 0.8rem 0;
        }
        
        .breadcrumb-pg {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        
        .breadcrumb-pg a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        
        .breadcrumb-pg a:hover {
            color: var(--accent-secondary);
        }
        
        .breadcrumb-pg .separator {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        
        .breadcrumb-pg .current {
            color: var(--accent-secondary);
            font-weight: 500;
        }
        
        .tutorial-hero {
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 60%, rgba(192, 38, 211, 0.08) 100%);
            border-bottom: 1px solid var(--border-color);
            padding: 3.5rem 0 2.5rem;
            position: relative;
            overflow: hidden;
        }
        
        .tutorial-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(192, 38, 211, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .tutorial-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        
        .tutorial-stat-bar {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }
        
        .tutorial-stat-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        
        .tutorial-stat-number {
            font-family: var(--font-mono);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-secondary);
            line-height: 1;
        }
        
        .tutorial-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        
        .tutorial-list-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            margin-bottom: 1.5rem;
            display: flex;
            flex-direction: column;
            cursor: pointer;
        }
        
        .tutorial-list-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        
        .tutorial-list-card .tutorial-thumb {
            position: relative;
            flex-shrink: 0;
            overflow: hidden;
            min-height: 200px;
        }
        
        .tutorial-list-card .tutorial-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        
        .tutorial-list-card:hover .tutorial-thumb img {
            transform: scale(1.04);
        }
        
        .tutorial-thumb-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(to bottom, transparent 40%, rgba(14, 15, 19, 0.7) 100%);
        }
        
        .tutorial-thumb-badge {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: rgba(192, 38, 211, 0.85);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            letter-spacing: 0.03em;
        }
        
        .tutorial-list-card .tutorial-body {
            padding: 1.5rem 1.75rem;
            flex: 1;
        }
        
        .tutorial-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 0.6rem;
            flex-wrap: wrap;
        }
        
        .tutorial-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }
        
        .tutorial-list-card .tutorial-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }
        
        .tutorial-list-card .tutorial-title a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        
        .tutorial-list-card .tutorial-title a:hover {
            color: var(--accent-secondary);
        }
        
        .tutorial-list-card .tutorial-summary {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 0.8rem;
        }
        
        .tutorial-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }
        
        .tutorial-tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--accent-cyan);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.25);
            border-radius: 50px;
            padding: 0.2rem 0.7rem;
            transition: all var(--transition-fast);
        }
        
        .tutorial-tag:hover {
            background: rgba(34, 211, 238, 0.18);
            border-color: rgba(34, 211, 238, 0.5);
            color: var(--accent-cyan);
        }
        
        .tutorial-tag.tag-amber {
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.08);
            border-color: rgba(245, 158, 11, 0.25);
        }
        
        .tutorial-tag.tag-amber:hover {
            background: rgba(245, 158, 11, 0.18);
            border-color: rgba(245, 158, 11, 0.5);
            color: var(--accent-amber);
        }
        
        .sidebar-widget {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            transition: all var(--transition-fast);
        }
        
        .sidebar-widget:hover {
            border-color: rgba(148, 163, 184, 0.3);
        }
        
        .sidebar-widget-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .sidebar-widget-title i {
            color: var(--accent-secondary);
            font-size: 0.85rem;
        }
        
        .trend-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .trend-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.7rem 0;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
            transition: all var(--transition-fast);
        }
        
        .trend-list li:last-child {
            border-bottom: none;
        }
        
        .trend-list li:hover {
            padding-left: 0.5rem;
        }
        
        .trend-rank {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 700;
            font-family: var(--font-mono);
            flex-shrink: 0;
            background: rgba(192, 38, 211, 0.12);
            color: var(--accent-secondary);
        }
        
        .trend-rank.top-1 {
            background: rgba(245, 158, 11, 0.2);
            color: var(--accent-amber);
        }
        
        .trend-rank.top-2 {
            background: rgba(232, 121, 249, 0.2);
            color: var(--accent-secondary);
        }
        
        .trend-rank.top-3 {
            background: rgba(34, 211, 238, 0.18);
            color: var(--accent-cyan);
        }
        
        .trend-link {
            color: var(--text-secondary);
            font-size: 0.85rem;
            text-decoration: none;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }
        
        .trend-link:hover {
            color: var(--accent-secondary);
        }
        
        .trend-count {
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-left: auto;
            white-space: nowrap;
            flex-shrink: 0;
        }
        
        .sidebar-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }
        
        .sidebar-tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.75rem;
            color: var(--text-secondary);
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.25rem 0.75rem;
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        
        .sidebar-tag:hover {
            color: var(--accent-secondary);
            border-color: var(--border-hover);
            background: rgba(192, 38, 211, 0.08);
        }
        
        .quick-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .quick-link-list li {
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
        }
        
        .quick-link-list li:last-child {
            border-bottom: none;
        }
        
        .quick-link-list a {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--text-secondary);
            font-size: 0.85rem;
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        
        .quick-link-list a:hover {
            color: var(--accent-secondary);
            padding-left: 0.35rem;
        }
        
        .quick-link-list a i {
            color: var(--accent-cyan);
            font-size: 0.75rem;
        }
        
        .cta-section {
            background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(192, 38, 211, 0.06) 50%, var(--bg-primary) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }
        
        .cta-section .cta-inner {
            max-width: 680px;
            margin: 0 auto;
        }
        
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            padding: 3.5rem 0 1.5rem;
            position: relative;
        }
        
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, rgba(192, 38, 211, 0.4) 30%, rgba(34, 211, 238, 0.3) 70%, transparent 100%);
        }
        
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }
        
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
        }
        
        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.85rem;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        
        .footer-links a:hover {
            color: var(--accent-secondary);
        }
        
        .footer-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }
        
        .footer-tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.75rem;
            color: var(--text-muted);
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.25rem 0.7rem;
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        
        .footer-tag:hover {
            color: var(--accent-secondary);
            border-color: var(--border-hover);
        }
        
        .footer-contact-item {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0.6rem;
        }
        
        .footer-contact-item i {
            color: var(--accent-cyan);
            font-size: 0.8rem;
            margin-top: 0.25rem;
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            margin-top: 2rem;
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }
        
        .footer-copyright {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        
        .footer-beian {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            align-items: center;
        }
        
        .footer-beian a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        
        .footer-beian a:hover {
            color: var(--accent-secondary);
        }
        
        .footer-beian .divider {
            color: var(--border-color);
        }
        
        @media (max-width: 992px) {
            .header-search {
                min-width: 180px;
            }
        }
        
        @media (max-width: 768px) {
            .header-brand-row {
                flex-wrap: nowrap;
            }
            .header-search {
                display: none;
            }
            .nav-toggle-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-channels {
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 0.5rem 0 1rem;
                gap: 0.15rem;
            }
            .nav-channels.show {
                display: flex;
            }
            .nav-link-pg {
                padding: 0.6rem 1rem;
                border-radius: var(--radius-sm);
            }
            .hot-tags {
                display: none;
            }
            .hot-tags.show {
                display: flex;
                padding-bottom: 0.8rem;
            }
            .tutorial-hero {
                padding: 2.5rem 0 1.5rem;
            }
            .tutorial-stat-bar {
                gap: 1.25rem;
            }
            .tutorial-stat-number {
                font-size: 1.4rem;
            }
            .tutorial-list-card .tutorial-body {
                padding: 1.25rem 1.25rem;
            }
            .tutorial-list-card .tutorial-title {
                font-size: 1.1rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-beian {
                justify-content: center;
            }
        }
        
        @media (max-width: 576px) {
            section {
                padding: 3rem 0;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .tutorial-stat-bar {
                gap: 1rem;
            }
            .tutorial-stat-number {
                font-size: 1.2rem;
            }
            .tutorial-list-card .tutorial-thumb {
                min-height: 160px;
            }
        }
        
        @media (min-width: 769px) {
            .nav-channels {
                display: flex !important;
            }
            .hot-tags {
                display: flex !important;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0E0F13;
            --bg-secondary: #1A1B21;
            --bg-tertiary: #15161C;
            --accent-primary: #C026D3;
            --accent-secondary: #E879F9;
            --accent-cyan: #22D3EE;
            --accent-green: #A3E635;
            --accent-amber: #F59E0B;
            --text-primary: #F8FAFC;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: rgba(148, 163, 184, 0.16);
            --border-hover: rgba(192, 38, 211, 0.55);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 8px 32px rgba(192, 38, 211, 0.18);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Inter', 'Roboto', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Orbitron', 'Inter', 'Roboto', monospace;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            background-color: var(--bg-primary);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-secondary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        section {
            padding: 4.5rem 0;
            position: relative;
        }
        .section-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.12);
            border: 1px solid rgba(192, 38, 211, 0.3);
            border-radius: 50px;
            padding: 0.3rem 0.9rem;
            margin-bottom: 0.7rem;
            text-transform: uppercase;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 720px;
            margin-bottom: 1.8rem;
            line-height: 1.8;
        }
        .text-glow-purple {
            text-shadow: 0 0 20px rgba(192, 38, 211, 0.45);
        }
        .text-accent {
            color: var(--accent-secondary);
        }
        .text-cyan {
            color: var(--accent-cyan);
        }
        .text-amber {
            color: var(--accent-amber);
        }
        .btn-pg-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--accent-primary);
            color: #fff;
            border: 1px solid var(--accent-secondary);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.25);
        }
        .btn-pg-primary:hover {
            background: var(--accent-secondary);
            color: #fff;
            box-shadow: 0 6px 24px rgba(192, 38, 211, 0.45);
            transform: translateY(-1px);
        }
        .btn-pg-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(192, 38, 211, 0.3);
        }
        .btn-pg-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-pg-outline:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
            border-color: rgba(34, 211, 238, 0.7);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.2);
            transform: translateY(-1px);
        }
        .btn-pg-outline:active {
            transform: translateY(0);
        }
        .btn-pg-amber {
            background: var(--accent-amber);
            color: #1A1B21;
            border: 1px solid rgba(245, 158, 11, 0.6);
            font-weight: 700;
        }
        .btn-pg-amber:hover {
            background: #FBBF24;
            color: #1A1B21;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(14, 15, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(14, 15, 19, 0.96);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.7rem 0;
            gap: 1rem;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.02em;
            text-decoration: none;
            white-space: nowrap;
        }
        .brand-logo:hover {
            color: var(--accent-secondary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: rgba(192, 38, 211, 0.18);
            border: 1px solid rgba(192, 38, 211, 0.45);
            border-radius: 8px;
            color: var(--accent-secondary);
            font-size: 0.9rem;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(26, 27, 33, 0.9);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.35rem 0.8rem;
            min-width: 260px;
        }
        .header-search i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            width: 100%;
            font-family: var(--font-sans);
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search:focus-within {
            border-color: var(--accent-primary);
            box-shadow: 0 0 12px rgba(192, 38, 211, 0.25);
        }
        .nav-toggle-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            color: var(--text-primary);
            width: 38px;
            height: 38px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.1rem;
            transition: all var(--transition-fast);
        }
        .nav-toggle-btn:hover {
            border-color: var(--accent-primary);
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.08);
        }
        .nav-channels {
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
            padding-bottom: 0.6rem;
        }
        .nav-link-pg {
            display: inline-flex;
            align-items: center;
            padding: 0.35rem 0.85rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 50px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .nav-link-pg:hover {
            color: var(--text-primary);
            background: rgba(148, 163, 184, 0.08);
        }
        .nav-link-pg.active {
            color: #fff;
            background: rgba(192, 38, 211, 0.2);
            border-color: rgba(192, 38, 211, 0.5);
            font-weight: 600;
        }
        .hot-tags {
            display: flex;
            gap: 0.5rem;
            padding-bottom: 0.8rem;
            flex-wrap: wrap;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
        }
        .hot-tag {
            display: inline-flex;
            align-items: center;
            padding: 0.2rem 0.7rem;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent-amber);
            border: 1px solid rgba(245, 158, 11, 0.35);
            border-radius: 50px;
            transition: all var(--transition-fast);
            text-decoration: none;
            background: rgba(245, 158, 11, 0.06);
        }
        .hot-tag:hover {
            background: rgba(245, 158, 11, 0.18);
            color: #FBBF24;
            border-color: rgba(245, 158, 11, 0.65);
        }
        .breadcrumb-bar {
            background: var(--bg-tertiary);
            border-bottom: 1px solid var(--border-color);
            padding: 0.8rem 0;
            font-size: 0.85rem;
        }
        .breadcrumb-bar a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .breadcrumb-bar a:hover {
            color: var(--accent-secondary);
        }
        .breadcrumb-bar .separator {
            color: var(--text-muted);
            margin: 0 0.4rem;
        }
        .breadcrumb-bar .current {
            color: var(--accent-secondary);
            font-weight: 500;
        }
        .page-heading {
            padding: 3rem 0 2rem;
            background: radial-gradient(ellipse at 30% 20%, rgba(192, 38, 211, 0.12) 0%, transparent 60%), radial-gradient(ellipse at 70% 50%, rgba(34, 211, 238, 0.06) 0%, transparent 50%), var(--bg-primary);
            position: relative;
            overflow: hidden;
        }
        .page-heading::after {
            content: '';
            position: absolute;
            top: 0;
            right: 5%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(192, 38, 211, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-heading h1 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 0.6rem 0;
            line-height: 1.3;
            letter-spacing: 0.01em;
        }
        .page-heading p.lead {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 860px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .version-compare-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .version-compare-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-cyan));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .version-compare-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .version-compare-card:hover::before {
            opacity: 1;
        }
        .version-compare-card .vc-badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            padding: 0.25rem 0.7rem;
            border-radius: 50px;
            margin-bottom: 0.8rem;
        }
        .vc-badge.stable {
            background: rgba(163, 230, 53, 0.15);
            color: var(--accent-green);
            border: 1px solid rgba(163, 230, 53, 0.4);
        }
        .vc-badge.beta {
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-amber);
            border: 1px solid rgba(245, 158, 11, 0.4);
        }
        .vc-badge.lts {
            background: rgba(34, 211, 238, 0.15);
            color: var(--accent-cyan);
            border: 1px solid rgba(34, 211, 238, 0.4);
        }
        .version-compare-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }
        .version-compare-card .vc-version {
            font-family: var(--font-mono);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-secondary);
            margin-bottom: 0.8rem;
            letter-spacing: 0.04em;
        }
        .version-compare-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .version-compare-card ul li {
            padding: 0.35rem 0;
            font-size: 0.88rem;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(148, 163, 184, 0.06);
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }
        .version-compare-card ul li:last-child {
            border-bottom: none;
        }
        .version-compare-card ul li i {
            color: var(--accent-green);
            font-size: 0.75rem;
            margin-top: 0.3rem;
            flex-shrink: 0;
        }
        .timeline-section {
            background: var(--bg-primary);
            position: relative;
        }
        .timeline-wrap {
            position: relative;
            padding-left: 2rem;
        }
        .timeline-wrap::before {
            content: '';
            position: absolute;
            top: 0;
            left: 10px;
            width: 2px;
            height: 100%;
            background: linear-gradient(180deg, rgba(192, 38, 211, 0.5), rgba(34, 211, 238, 0.3), rgba(148, 163, 184, 0.1));
        }
        .timeline-item {
            position: relative;
            padding-bottom: 2.5rem;
            padding-left: 1.5rem;
        }
        .timeline-item:last-child {
            padding-bottom: 0.5rem;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -1.55rem;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--bg-primary);
            border: 2px solid var(--accent-primary);
            box-shadow: 0 0 12px rgba(192, 38, 211, 0.45);
            z-index: 1;
        }
        .timeline-item.highlight::before {
            border-color: var(--accent-amber);
            box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
        }
        .timeline-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.8rem;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .timeline-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
        }
        .timeline-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            margin-bottom: 1rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid rgba(148, 163, 184, 0.1);
        }
        .timeline-header .tl-version {
            font-family: var(--font-mono);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.05em;
        }
        .timeline-header .tl-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .timeline-header .tl-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.2rem 0.65rem;
            border-radius: 50px;
            letter-spacing: 0.05em;
        }
        .tl-tag.tag-new {
            background: rgba(163, 230, 53, 0.15);
            color: var(--accent-green);
            border: 1px solid rgba(163, 230, 53, 0.35);
        }
        .tl-tag.tag-fix {
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
            border: 1px solid rgba(34, 211, 238, 0.3);
        }
        .tl-tag.tag-opt {
            background: rgba(245, 158, 11, 0.14);
            color: var(--accent-amber);
            border: 1px solid rgba(245, 158, 11, 0.35);
        }
        .timeline-card .tl-desc {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.75;
            margin-bottom: 1rem;
        }
        .tl-changes {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .tl-changes li {
            padding: 0.4rem 0;
            font-size: 0.88rem;
            color: var(--text-secondary);
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            border-bottom: 1px solid rgba(148, 163, 184, 0.05);
        }
        .tl-changes li:last-child {
            border-bottom: none;
        }
        .tl-changes li i {
            color: var(--accent-green);
            font-size: 0.7rem;
            margin-top: 0.35rem;
            flex-shrink: 0;
        }
        .tl-changes li .change-label {
            font-weight: 600;
            color: var(--text-primary);
            margin-right: 0.3rem;
            flex-shrink: 0;
        }
        .upgrade-tips-section {
            background: var(--bg-tertiary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .upgrade-tip-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            height: 100%;
            transition: all var(--transition-base);
        }
        .upgrade-tip-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow);
        }
        .upgrade-tip-card .tip-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(192, 38, 211, 0.12);
            border: 1px solid rgba(192, 38, 211, 0.3);
            color: var(--accent-secondary);
            font-size: 1.1rem;
            margin-bottom: 1rem;
        }
        .upgrade-tip-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .upgrade-tip-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .cta-section {
            background: radial-gradient(ellipse at 50% 50%, rgba(192, 38, 211, 0.15) 0%, transparent 65%), radial-gradient(ellipse at 30% 30%, rgba(34, 211, 238, 0.07) 0%, transparent 50%), var(--bg-primary);
            text-align: center;
            padding: 5rem 0;
            border-top: 1px solid var(--border-color);
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            line-height: 1.3;
        }
        .cta-section p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin: 0 auto 1.8rem;
            line-height: 1.8;
        }
        .cta-section .btn-group-pg {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .faq-section {
            background: var(--bg-tertiary);
            border-top: 1px solid var(--border-color);
        }
        .faq-item-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item-card.active {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.3rem;
            cursor: pointer;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            gap: 1rem;
            user-select: none;
        }
        .faq-question i {
            color: var(--accent-secondary);
            font-size: 0.8rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item-card.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent-amber);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.75;
        }
        .faq-item-card.active .faq-answer {
            max-height: 350px;
        }
        .faq-answer-inner {
            padding: 0 1.3rem 1.2rem;
        }
        .site-footer {
            background: #090A0D;
            border-top: 1px solid var(--border-color);
            padding: 3.5rem 0 0;
            position: relative;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 0.8rem;
        }
        .site-footer .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .site-footer .footer-heading {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 1rem;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent-secondary);
        }
        .site-footer .footer-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .site-footer .footer-tag {
            display: inline-block;
            padding: 0.2rem 0.65rem;
            font-size: 0.75rem;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .site-footer .footer-tag:hover {
            border-color: var(--accent-primary);
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.08);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.1);
            padding: 1.2rem 0;
            text-align: center;
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 3rem;
        }
        .site-footer .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-secondary);
        }
        @media (max-width: 991.98px) {
            .header-search {
                min-width: 180px;
            }
        }
        @media (max-width: 767.98px) {
            .header-search {
                display: none;
            }
            .nav-toggle-btn {
                display: inline-flex;
            }
            .nav-channels {
                display: none;
                flex-direction: column;
                padding-bottom: 0.8rem;
                gap: 0.2rem;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-link-pg {
                width: 100%;
                justify-content: flex-start;
                padding: 0.5rem 0.8rem;
            }
            .hot-tags {
                display: none;
            }
            .hot-tags.open {
                display: flex;
            }
            .page-heading h1 {
                font-size: 1.5rem;
            }
            .version-compare-card {
                padding: 1.2rem;
            }
            .timeline-wrap {
                padding-left: 1.5rem;
            }
            .timeline-item {
                padding-left: 1rem;
            }
            .timeline-item::before {
                left: -1.2rem;
                top: 5px;
                width: 10px;
                height: 10px;
            }
            .timeline-card {
                padding: 1.2rem 1rem;
            }
            section {
                padding: 2.5rem 0;
            }
            .cta-section {
                padding: 3rem 0;
            }
            .site-footer {
                padding-top: 2.5rem;
            }
            .site-footer .footer-bottom {
                margin-top: 2rem;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .header-brand-row {
                padding: 0.5rem 0;
            }
            .page-heading h1 {
                font-size: 1.35rem;
            }
            .timeline-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0E0F13;
            --bg-secondary: #1A1B21;
            --bg-tertiary: #15161C;
            --accent-primary: #C026D3;
            --accent-secondary: #E879F9;
            --accent-cyan: #22D3EE;
            --accent-green: #A3E635;
            --accent-amber: #F59E0B;
            --text-primary: #F8FAFC;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: rgba(148, 163, 184, 0.16);
            --border-hover: rgba(192, 38, 211, 0.55);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 8px 32px rgba(192, 38, 211, 0.18);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Inter', 'Roboto', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Orbitron', 'Inter', 'Roboto', monospace;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            background-color: var(--bg-primary);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        section {
            padding: 4.5rem 0;
            position: relative;
        }

        .section-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.12);
            border: 1px solid rgba(192, 38, 211, 0.3);
            border-radius: 50px;
            padding: 0.3rem 0.9rem;
            margin-bottom: 0.7rem;
            text-transform: uppercase;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 720px;
            margin-bottom: 1.8rem;
            line-height: 1.8;
        }

        .text-glow-purple {
            text-shadow: 0 0 20px rgba(192, 38, 211, 0.45);
        }
        .text-accent {
            color: var(--accent-secondary);
        }
        .text-cyan {
            color: var(--accent-cyan);
        }
        .text-amber {
            color: var(--accent-amber);
        }

        /* Buttons */
        .btn-pg-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--accent-primary);
            color: #fff;
            border: 1px solid var(--accent-secondary);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.25);
        }

        .btn-pg-primary:hover {
            background: var(--accent-secondary);
            color: #fff;
            box-shadow: 0 6px 24px rgba(192, 38, 211, 0.45);
            transform: translateY(-1px);
        }

        .btn-pg-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(192, 38, 211, 0.3);
        }

        .btn-pg-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-pg-outline:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
            border-color: rgba(34, 211, 238, 0.7);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.2);
            transform: translateY(-1px);
        }

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

        .btn-pg-amber {
            background: var(--accent-amber);
            color: #1A1B21;
            border: 1px solid rgba(245, 158, 11, 0.6);
            font-weight: 700;
        }

        .btn-pg-amber:hover {
            background: #FBBF24;
            color: #1A1B21;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(14, 15, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(14, 15, 19, 0.97);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.7rem 0;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-primary);
            text-decoration: none;
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .brand-logo:hover {
            color: var(--text-primary);
            transform: translateY(-1px);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.3);
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(26, 27, 33, 0.8);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.4rem 1rem;
            min-width: 240px;
            max-width: 320px;
            transition: all var(--transition-fast);
        }

        .header-search:focus-within {
            border-color: var(--border-hover);
            box-shadow: 0 0 20px rgba(192, 38, 211, 0.15);
        }

        .header-search i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            width: 100%;
            font-family: var(--font-sans);
        }

        .header-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-toggle-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 0.4rem 0.7rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .nav-toggle-btn:hover {
            border-color: var(--border-hover);
            background: rgba(192, 38, 211, 0.1);
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.45rem 0;
            flex-wrap: wrap;
            border-top: 1px solid var(--border-color);
        }

        .nav-link-pg {
            display: inline-flex;
            align-items: center;
            padding: 0.35rem 0.9rem;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 50px;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }

        .nav-link-pg:hover {
            color: var(--text-primary);
            background: rgba(192, 38, 211, 0.1);
        }

        .nav-link-pg.active {
            color: #fff;
            background: rgba(192, 38, 211, 0.25);
            border: 1px solid rgba(192, 38, 211, 0.4);
        }

        .hot-tags {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 0 0.7rem;
            flex-wrap: wrap;
        }

        .hot-tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent-amber);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 50px;
            padding: 0.2rem 0.7rem;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .hot-tag:hover {
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-amber);
            border-color: rgba(245, 158, 11, 0.7);
        }

        /* Breadcrumb */
        .breadcrumb-pg {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 1.2rem 0 0.5rem;
            flex-wrap: wrap;
        }

        .breadcrumb-pg a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-pg .separator {
            color: var(--text-muted);
            font-size: 0.7rem;
        }

        .breadcrumb-pg .current {
            color: var(--accent-secondary);
            font-weight: 600;
        }

        /* Page Header */
        .page-header {
            padding: 2rem 0 2.5rem;
            position: relative;
            overflow: hidden;
            background: 
                radial-gradient(ellipse at 80% 30%, rgba(192, 38, 211, 0.15) 0%, transparent 55%),
                radial-gradient(ellipse at 20% 70%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
                var(--bg-primary);
        }

        .page-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }

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

        .page-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            line-height: 1.3;
            letter-spacing: 0.01em;
        }

        .page-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 0.5rem;
        }

        /* Anchor Navigation */
        .anchor-nav {
            display: flex;
            gap: 0.4rem;
            flex-wrap: wrap;
            padding: 0.6rem 0;
            margin-bottom: 1rem;
        }

        .anchor-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(26, 27, 33, 0.7);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.35rem 0.9rem;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .anchor-link:hover {
            color: var(--accent-secondary);
            border-color: rgba(192, 38, 211, 0.45);
            background: rgba(192, 38, 211, 0.08);
        }

        .anchor-link i {
            font-size: 0.7rem;
            color: var(--accent-cyan);
        }

        /* Stats Overview */
        .stats-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.2rem 2rem;
            margin-bottom: 2rem;
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .stats-panel::after {
            content: '';
            position: absolute;
            top: -1px;
            left: 20%;
            right: 20%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-primary), var(--accent-cyan), transparent);
            border-radius: 2px;
        }

        .stat-cell {
            text-align: center;
            padding: 0.8rem 0.5rem;
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .stat-number .unit {
            font-size: 1rem;
            color: var(--accent-secondary);
            font-weight: 600;
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        /* Feature Blocks */
        .feature-block {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 2.2rem;
            margin-bottom: 1.8rem;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-block:hover {
            border-color: rgba(192, 38, 211, 0.35);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }

        .feature-block::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-primary), var(--accent-cyan));
            border-radius: 4px 0 0 4px;
        }

        .feature-block .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            font-size: 1.4rem;
            margin-bottom: 1rem;
            background: rgba(192, 38, 211, 0.15);
            color: var(--accent-secondary);
            border: 1px solid rgba(192, 38, 211, 0.3);
        }

        .feature-block h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            line-height: 1.4;
        }

        .feature-block p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.8;
            margin-bottom: 0.5rem;
        }

        .feature-block .feature-image {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-top: 1.2rem;
            border: 1px solid var(--border-color);
        }

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

        .feature-block:hover .feature-image img {
            transform: scale(1.02);
        }

        .feature-meta-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 0.8rem;
        }

        .feature-meta-tag {
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent-cyan);
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.25);
            border-radius: 50px;
            padding: 0.2rem 0.7rem;
        }

        /* Split Feature Layout */
        .feature-split {
            display: flex;
            gap: 2rem;
            align-items: center;
            margin-bottom: 1.8rem;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all var(--transition-base);
        }

        .feature-split:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: 0 6px 28px rgba(34, 211, 238, 0.08);
        }

        .feature-split .split-image {
            flex: 0 0 280px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .feature-split .split-image img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

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

        .feature-split .split-content {
            flex: 1;
        }

        .feature-split h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }

        .feature-split p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0.3rem;
        }

        /* Performance Data Band */
        .perf-band {
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            margin-bottom: 1.8rem;
        }

        .perf-row {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.7rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .perf-row:last-child {
            border-bottom: none;
        }

        .perf-label {
            flex: 0 0 140px;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.88rem;
        }

        .perf-bar {
            flex: 1;
            height: 10px;
            background: rgba(148, 163, 184, 0.1);
            border-radius: 50px;
            overflow: hidden;
        }

        .perf-bar-fill {
            height: 100%;
            border-radius: 50px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-cyan));
            transition: width 1.2s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

        .perf-value {
            flex: 0 0 80px;
            text-align: right;
            font-family: var(--font-mono);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent-cyan);
        }

        /* Testimonials */
        .testimonial-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            height: 100%;
            transition: all var(--transition-base);
            position: relative;
        }

        .testimonial-card:hover {
            border-color: rgba(192, 38, 211, 0.4);
            transform: translateY(-3px);
            box-shadow: var(--shadow-glow);
        }

        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            margin-bottom: 0.8rem;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-cyan));
            flex-shrink: 0;
        }

        .testimonial-name {
            font-weight: 700;
            color: var(--text-primary);
            font-size: 0.9rem;
        }

        .testimonial-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .testimonial-stars {
            color: var(--accent-amber);
            font-size: 0.8rem;
            letter-spacing: 0.1em;
            margin-bottom: 0.5rem;
        }

        .testimonial-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-tertiary);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2rem;
            border: 1px solid var(--border-color);
            margin-bottom: 1.8rem;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 0.7rem;
            background: rgba(14, 15, 19, 0.6);
            transition: all var(--transition-fast);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(192, 38, 211, 0.3);
        }

        .faq-item.active {
            border-color: var(--border-hover);
            box-shadow: 0 4px 20px rgba(192, 38, 211, 0.1);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.2rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-primary);
            user-select: none;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            color: var(--accent-cyan);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--accent-secondary);
        }

        .faq-answer {
            padding: 0 1.2rem 1.2rem;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }

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

        /* Brand Section */
        .brand-info-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 2rem;
            margin-bottom: 1.5rem;
        }

        .brand-info-section h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }

        .brand-info-section p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 0.5rem;
        }

        /* Partner Tags */
        .partner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
            margin-top: 1rem;
        }

        .partner-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(192, 38, 211, 0.08);
            border: 1px solid rgba(192, 38, 211, 0.3);
            border-radius: var(--radius-sm);
            padding: 0.5rem 1rem;
            font-size: 0.82rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .partner-tag:hover {
            border-color: var(--border-hover);
            color: var(--text-primary);
            background: rgba(192, 38, 211, 0.15);
        }

        .partner-tag i {
            color: var(--accent-cyan);
            font-size: 0.75rem;
        }

        /* CTA */
        .cta-section {
            background: radial-gradient(ellipse at center, rgba(192, 38, 211, 0.2) 0%, transparent 60%), var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 3.5rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 600px;
            margin: 0 auto 1.5rem;
            position: relative;
            z-index: 1;
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

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

        .footer-links li {
            margin-bottom: 0.5rem;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent-secondary);
        }

        .footer-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.45rem;
        }

        .footer-tag {
            font-size: 0.75rem;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.25rem 0.65rem;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .footer-tag:hover {
            border-color: rgba(192, 38, 211, 0.45);
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.06);
        }

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

        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }

        .footer-contact-list i {
            color: var(--accent-cyan);
            font-size: 0.85rem;
            width: 16px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 1.2rem;
            margin-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.5rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-links {
            display: flex;
            gap: 0.8rem;
            align-items: center;
            flex-wrap: wrap;
        }

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

        /* Responsive */
        @media (max-width: 992px) {
            .header-search {
                min-width: 180px;
                max-width: 240px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .feature-split {
                flex-direction: column;
                gap: 1rem;
            }
            .feature-split .split-image {
                flex: 0 0 auto;
                width: 100%;
            }
            .feature-split .split-image img {
                height: 200px;
            }
            .perf-label {
                flex: 0 0 110px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 3rem 0;
            }
            .page-title {
                font-size: 1.5rem;
            }
            .header-brand-row {
                flex-wrap: nowrap;
            }
            .header-search {
                display: none;
            }
            .nav-toggle-btn {
                display: inline-flex;
            }
            .nav-channels {
                display: none;
                flex-direction: column;
                align-items: flex-start;
                gap: 0.2rem;
                padding: 0.5rem 0;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-link-pg {
                width: 100%;
                padding: 0.5rem 0.9rem;
            }
            .hot-tags {
                display: none;
            }
            .hot-tags.open {
                display: flex;
            }
            .stats-panel {
                padding: 1.5rem 1rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-number .unit {
                font-size: 0.8rem;
            }
            .feature-block {
                padding: 1.5rem;
            }
            .feature-block h3 {
                font-size: 1.05rem;
            }
            .feature-split {
                padding: 1.2rem;
            }
            .feature-split h3 {
                font-size: 1rem;
            }
            .faq-section {
                padding: 1.5rem 1rem;
            }
            .cta-section {
                padding: 2.5rem 1.2rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .breadcrumb-pg {
                font-size: 0.75rem;
            }
            .perf-label {
                flex: 0 0 90px;
                font-size: 0.72rem;
            }
            .perf-value {
                flex: 0 0 60px;
                font-size: 0.75rem;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .page-title {
                font-size: 1.3rem;
            }
            .stat-number {
                font-size: 1.3rem;
            }
            .stat-label {
                font-size: 0.7rem;
            }
            .stats-panel {
                padding: 1.2rem 0.8rem;
            }
            .stat-cell {
                padding: 0.4rem 0.2rem;
            }
            .feature-block {
                padding: 1.2rem;
                margin-bottom: 1rem;
            }
            .feature-block h3 {
                font-size: 0.95rem;
            }
            .feature-block .feature-icon {
                width: 42px;
                height: 42px;
                font-size: 1.1rem;
            }
            .feature-split {
                padding: 1rem;
                margin-bottom: 1rem;
            }
            .feature-split .split-image img {
                height: 160px;
            }
            .testimonial-card {
                padding: 1.1rem;
            }
            .faq-question {
                font-size: 0.85rem;
                padding: 0.8rem 1rem;
            }
            .faq-answer {
                font-size: 0.82rem;
                padding: 0 1rem 1rem;
            }
            .brand-info-section {
                padding: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.15rem;
            }
            .btn-pg-primary,
            .btn-pg-outline {
                padding: 0.6rem 1.2rem;
                font-size: 0.85rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.6rem;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .anchor-link {
                font-size: 0.75rem;
                padding: 0.25rem 0.6rem;
            }
            .perf-row {
                flex-wrap: wrap;
                gap: 0.4rem;
            }
            .perf-label {
                flex: 1 1 100%;
            }
            .perf-value {
                flex: 0 0 auto;
            }
        }

/* roulang page: category4 */
:root {
        --bg-primary: #0E0F13;
        --bg-secondary: #1A1B21;
        --bg-tertiary: #15161C;
        --accent-primary: #C026D3;
        --accent-secondary: #E879F9;
        --accent-cyan: #22D3EE;
        --accent-green: #A3E635;
        --accent-amber: #F59E0B;
        --text-primary: #F8FAFC;
        --text-secondary: #CBD5E1;
        --text-muted: #64748B;
        --border-color: rgba(148, 163, 184, 0.16);
        --border-hover: rgba(192, 38, 211, 0.55);
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 20px;
        --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.45);
        --shadow-glow: 0 8px 32px rgba(192, 38, 211, 0.18);
        --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
        --transition-fast: 0.2s ease;
        --transition-base: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
        --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Inter', 'Roboto', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
        --font-mono: 'Orbitron', 'Inter', 'Roboto', monospace;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: var(--font-sans);
        font-size: 15px;
        line-height: 1.8;
        color: var(--text-secondary);
        background-color: var(--bg-primary);
        margin: 0;
        padding: 0;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: var(--accent-cyan);
        text-decoration: none;
        transition: color var(--transition-fast);
    }
    a:hover {
        color: var(--accent-secondary);
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible {
        outline: 2px solid var(--accent-primary);
        outline-offset: 2px;
    }
    .container {
        max-width: 1200px;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
    section {
        padding: 4.5rem 0;
        position: relative;
    }
    .section-badge {
        display: inline-block;
        font-size: 0.75rem;
        font-weight: 600;
        letter-spacing: 0.08em;
        color: var(--accent-secondary);
        background: rgba(192, 38, 211, 0.12);
        border: 1px solid rgba(192, 38, 211, 0.3);
        border-radius: 50px;
        padding: 0.3rem 0.9rem;
        margin-bottom: 0.7rem;
        text-transform: uppercase;
    }
    .section-desc {
        color: var(--text-secondary);
        font-size: 0.95rem;
        max-width: 720px;
        margin-bottom: 1.8rem;
        line-height: 1.8;
    }
    .text-glow-purple {
        text-shadow: 0 0 20px rgba(192, 38, 211, 0.45);
    }
    .text-accent {
        color: var(--accent-secondary);
    }
    .text-cyan {
        color: var(--accent-cyan);
    }
    .text-amber {
        color: var(--accent-amber);
    }
    .btn-pg-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        background: var(--accent-primary);
        color: #fff;
        border: 1px solid var(--accent-secondary);
        border-radius: var(--radius-sm);
        padding: 0.7rem 1.6rem;
        font-weight: 600;
        font-size: 0.95rem;
        letter-spacing: 0.02em;
        transition: all var(--transition-base);
        text-decoration: none;
        cursor: pointer;
        box-shadow: 0 2px 12px rgba(192, 38, 211, 0.25);
    }
    .btn-pg-primary:hover {
        background: var(--accent-secondary);
        color: #fff;
        box-shadow: 0 6px 24px rgba(192, 38, 211, 0.45);
        transform: translateY(-1px);
    }
    .btn-pg-primary:active {
        transform: translateY(0);
        box-shadow: 0 2px 8px rgba(192, 38, 211, 0.3);
    }
    .btn-pg-outline {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        background: transparent;
        color: var(--accent-cyan);
        border: 1px solid var(--accent-cyan);
        border-radius: var(--radius-sm);
        padding: 0.7rem 1.6rem;
        font-weight: 600;
        font-size: 0.95rem;
        letter-spacing: 0.02em;
        transition: all var(--transition-base);
        text-decoration: none;
        cursor: pointer;
    }
    .btn-pg-outline:hover {
        background: rgba(34, 211, 238, 0.12);
        color: var(--accent-cyan);
        border-color: rgba(34, 211, 238, 0.7);
        box-shadow: 0 4px 16px rgba(34, 211, 238, 0.2);
        transform: translateY(-1px);
    }
    .btn-pg-outline:active {
        transform: translateY(0);
    }
    .btn-pg-amber {
        background: var(--accent-amber);
        color: #1A1B21;
        border: 1px solid rgba(245, 158, 11, 0.6);
        font-weight: 700;
    }
    .btn-pg-amber:hover {
        background: #FBBF24;
        color: #1A1B21;
        box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
    }
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1050;
        background: rgba(14, 15, 19, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-color);
    }
    .site-header .container {
        padding-top: 0.6rem;
        padding-bottom: 0.6rem;
    }
    .header-brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        flex-wrap: nowrap;
    }
    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 0.6rem;
        color: var(--text-primary);
        font-weight: 700;
        font-size: 1.15rem;
        letter-spacing: 0.03em;
        text-decoration: none;
        white-space: nowrap;
        transition: color var(--transition-fast);
    }
    .brand-logo:hover {
        color: var(--accent-secondary);
    }
    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
        border-radius: var(--radius-sm);
        background: linear-gradient(135deg, rgba(192, 38, 211, 0.35), rgba(34, 211, 238, 0.25));
        border: 1px solid rgba(192, 38, 211, 0.45);
        color: #fff;
        font-size: 0.95rem;
    }
    .header-search {
        display: flex;
        align-items: center;
        gap: 0.4rem;
        background: rgba(26, 27, 33, 0.7);
        border: 1px solid var(--border-color);
        border-radius: 30px;
        padding: 0.4rem 0.9rem;
        max-width: 260px;
        transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    }
    .header-search:focus-within {
        border-color: var(--border-hover);
        box-shadow: 0 0 16px rgba(192, 38, 211, 0.25);
    }
    .header-search i {
        color: var(--text-muted);
        font-size: 0.8rem;
    }
    .header-search input {
        background: transparent;
        border: none;
        outline: none;
        color: var(--text-primary);
        font-size: 0.8rem;
        width: 100%;
        min-width: 0;
    }
    .header-search input::placeholder {
        color: var(--text-muted);
        font-size: 0.75rem;
    }
    .nav-toggle-btn {
        display: none;
        background: transparent;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm);
        color: var(--text-secondary);
        width: 36px;
        height: 36px;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: all var(--transition-fast);
        font-size: 1rem;
    }
    .nav-toggle-btn:hover {
        border-color: var(--border-hover);
        color: var(--accent-secondary);
    }
    .nav-channels {
        display: flex;
        align-items: center;
        gap: 0.35rem;
        flex-wrap: nowrap;
        overflow-x: auto;
        padding: 0.5rem 0 0.3rem;
        scrollbar-width: thin;
        scrollbar-color: rgba(148, 163, 184, 0.3) transparent;
        -webkit-overflow-scrolling: touch;
    }
    .nav-channels::-webkit-scrollbar {
        height: 3px;
    }
    .nav-channels::-webkit-scrollbar-track {
        background: transparent;
    }
    .nav-channels::-webkit-scrollbar-thumb {
        background: rgba(148, 163, 184, 0.3);
        border-radius: 6px;
    }
    .nav-link-pg {
        display: inline-flex;
        align-items: center;
        padding: 0.35rem 0.85rem;
        border-radius: 50px;
        font-size: 0.82rem;
        font-weight: 500;
        color: var(--text-secondary);
        text-decoration: none;
        white-space: nowrap;
        transition: all var(--transition-fast);
        border: 1px solid transparent;
        letter-spacing: 0.02em;
    }
    .nav-link-pg:hover {
        color: var(--text-primary);
        background: rgba(192, 38, 211, 0.1);
        border-color: rgba(192, 38, 211, 0.25);
    }
    .nav-link-pg.active {
        color: #fff;
        background: linear-gradient(135deg, var(--accent-primary), #7C3AED);
        border-color: rgba(232, 121, 249, 0.5);
        box-shadow: 0 2px 10px rgba(192, 38, 211, 0.35);
        font-weight: 600;
    }
    .hot-tags {
        display: flex;
        align-items: center;
        gap: 0.45rem;
        padding: 0.3rem 0 0.5rem;
        flex-wrap: wrap;
    }
    .hot-tag {
        display: inline-flex;
        align-items: center;
        gap: 0.3rem;
        font-size: 0.7rem;
        color: var(--accent-amber);
        border: 1px solid rgba(245, 158, 11, 0.4);
        border-radius: 50px;
        padding: 0.15rem 0.7rem;
        text-decoration: none;
        transition: all var(--transition-fast);
        white-space: nowrap;
    }
    .hot-tag:hover {
        background: rgba(245, 158, 11, 0.15);
        border-color: rgba(245, 158, 11, 0.7);
        color: #FBBF24;
    }
    .hot-tag i {
        font-size: 0.6rem;
    }
    .compat-hero {
        position: relative;
        background: var(--bg-primary);
        padding: 4rem 0 3.5rem;
        overflow: hidden;
    }
    .compat-hero::before {
        content: '';
        position: absolute;
        top: -160px;
        right: -100px;
        width: 520px;
        height: 520px;
        background: radial-gradient(circle, rgba(192, 38, 211, 0.22) 0%, rgba(192, 38, 211, 0.06) 42%, transparent 70%);
        pointer-events: none;
        z-index: 0;
    }
    .compat-hero::after {
        content: '';
        position: absolute;
        bottom: -100px;
        left: -80px;
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, rgba(34, 211, 238, 0.04) 45%, transparent 70%);
        pointer-events: none;
        z-index: 0;
    }
    .compat-hero .container {
        position: relative;
        z-index: 1;
    }
    .compat-hero-content {
        display: flex;
        align-items: center;
        gap: 2.5rem;
        flex-wrap: wrap;
    }
    .compat-hero-text {
        flex: 1 1 420px;
    }
    .compat-hero-visual {
        flex: 0 0 340px;
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-card);
        position: relative;
        aspect-ratio: 3/4;
        max-width: 340px;
        background: var(--bg-secondary);
    }
    .compat-hero-visual img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .compat-hero-visual::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(14, 15, 19, 0.15) 0%, rgba(14, 15, 19, 0.55) 100%);
        pointer-events: none;
    }
    .compat-hero-visual .hero-float-badge {
        position: absolute;
        bottom: 1rem;
        left: 1rem;
        right: 1rem;
        background: rgba(14, 15, 19, 0.82);
        backdrop-filter: blur(8px);
        border: 1px solid rgba(192, 38, 211, 0.4);
        border-radius: var(--radius-sm);
        padding: 0.6rem 0.9rem;
        z-index: 2;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        color: var(--text-primary);
        font-size: 0.75rem;
        font-weight: 600;
    }
    .compat-hero-visual .hero-float-badge i {
        color: var(--accent-secondary);
    }
    .compat-hero h1 {
        font-size: 2rem;
        font-weight: 800;
        color: var(--text-primary);
        letter-spacing: 0.03em;
        line-height: 1.35;
        margin-bottom: 1rem;
    }
    .compat-hero .hero-subtitle {
        font-size: 0.95rem;
        color: var(--text-secondary);
        max-width: 540px;
        line-height: 1.85;
        margin-bottom: 1.5rem;
    }
    .compat-hero .hero-actions {
        display: flex;
        gap: 0.8rem;
        flex-wrap: wrap;
    }
    .compat-hero .hero-stats {
        display: flex;
        gap: 1.8rem;
        margin-top: 1.8rem;
        flex-wrap: wrap;
    }
    .compat-hero .hero-stat-item {
        display: flex;
        flex-direction: column;
        gap: 0.1rem;
    }
    .compat-hero .hero-stat-value {
        font-family: var(--font-mono);
        font-size: 1.4rem;
        font-weight: 700;
        color: var(--accent-secondary);
        letter-spacing: 0.04em;
    }
    .compat-hero .hero-stat-label {
        font-size: 0.72rem;
        color: var(--text-muted);
        letter-spacing: 0.04em;
    }
    .breadcrumb-pg {
        display: flex;
        align-items: center;
        gap: 0.45rem;
        font-size: 0.78rem;
        color: var(--text-muted);
        margin-bottom: 1.2rem;
        flex-wrap: wrap;
    }
    .breadcrumb-pg a {
        color: var(--text-muted);
        text-decoration: none;
        transition: color var(--transition-fast);
    }
    .breadcrumb-pg a:hover {
        color: var(--accent-secondary);
    }
    .breadcrumb-pg .sep {
        color: rgba(148, 163, 184, 0.4);
        font-size: 0.65rem;
    }
    .breadcrumb-pg .current {
        color: var(--accent-secondary);
        font-weight: 600;
    }
    .compat-overview {
        background: var(--bg-tertiary);
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
        padding: 3.5rem 0;
    }
    .compat-overview-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 1rem;
    }
    .compat-ov-card {
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 1.2rem 1.3rem;
        text-align: center;
        transition: all var(--transition-base);
        position: relative;
        overflow: hidden;
    }
    .compat-ov-card::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
        opacity: 0;
        transition: opacity var(--transition-base);
    }
    .compat-ov-card:hover {
        border-color: var(--border-hover);
        box-shadow: var(--shadow-glow);
        transform: translateY(-2px);
    }
    .compat-ov-card:hover::after {
        opacity: 1;
    }
    .compat-ov-icon {
        width: 44px;
        height: 44px;
        border-radius: var(--radius-sm);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 1.15rem;
        margin-bottom: 0.7rem;
        background: rgba(192, 38, 211, 0.12);
        color: var(--accent-secondary);
        border: 1px solid rgba(192, 38, 211, 0.3);
    }
    .compat-ov-value {
        font-family: var(--font-mono);
        font-size: 1.6rem;
        font-weight: 700;
        color: var(--text-primary);
        letter-spacing: 0.04em;
        line-height: 1.2;
    }
    .compat-ov-label {
        font-size: 0.75rem;
        color: var(--text-muted);
        margin-top: 0.2rem;
    }
    .config-section {
        background: var(--bg-primary);
    }
    .config-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
        margin-top: 1.5rem;
    }
    .config-primary-card {
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 1.8rem 1.8rem 1.5rem;
        position: relative;
        overflow: hidden;
        transition: all var(--transition-base);
        box-shadow: var(--shadow-card);
    }
    .config-primary-card:hover {
        border-color: var(--border-hover);
        box-shadow: var(--shadow-glow);
    }
    .config-primary-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), transparent);
    }
    .config-secondary-card {
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 1.8rem 1.8rem 1.5rem;
        position: relative;
        overflow: hidden;
        transition: all var(--transition-base);
    }
    .config-secondary-card:hover {
        border-color: rgba(34, 211, 238, 0.55);
        box-shadow: 0 8px 32px rgba(34, 211, 238, 0.15);
    }
    .config-secondary-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--accent-cyan), var(--accent-green), transparent);
    }
    .config-card-header {
        display: flex;
        align-items: center;
        gap: 0.7rem;
        margin-bottom: 1.2rem;
    }
    .config-card-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.3rem;
        font-size: 0.72rem;
        font-weight: 700;
        letter-spacing: 0.04em;
        padding: 0.25rem 0.7rem;
        border-radius: 50px;
        text-transform: uppercase;
    }
    .config-card-badge.min {
        background: rgba(34, 211, 238, 0.12);
        color: var(--accent-cyan);
        border: 1px solid rgba(34, 211, 238, 0.4);
    }
    .config-card-badge.rec {
        background: rgba(192, 38, 211, 0.15);
        color: var(--accent-secondary);
        border: 1px solid rgba(192, 38, 211, 0.45);
    }
    .config-card-title {
        font-size: 1.05rem;
        font-weight: 700;
        color: var(--text-primary);
        letter-spacing: 0.02em;
    }
    .config-card-subtitle {
        font-size: 0.75rem;
        color: var(--text-muted);
        margin-bottom: 1.2rem;
    }
    .config-item {
        display: flex;
        align-items: flex-start;
        gap: 0.7rem;
        padding: 0.65rem 0;
        border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    }
    .config-item:last-child {
        border-bottom: none;
    }
    .config-item-icon {
        flex: 0 0 30px;
        height: 30px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: var(--radius-sm);
        font-size: 0.75rem;
        background: rgba(148, 163, 184, 0.1);
        color: var(--text-secondary);
    }
    .config-item-label {
        flex: 0 0 70px;
        font-size: 0.82rem;
        font-weight: 600;
        color: var(--text-primary);
        letter-spacing: 0.02em;
    }
    .config-item-value {
        font-size: 0.82rem;
        color: var(--text-secondary);
        line-height: 1.6;
    }
    .config-item-value strong {
        color: var(--accent-secondary);
        font-weight: 600;
    }
    .config-item-value .val-cyan {
        color: var(--accent-cyan);
        font-weight: 600;
    }
    .compat-os-section {
        background: var(--bg-tertiary);
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
    }
    .os-card-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
        margin-top: 1.5rem;
    }
    .os-card {
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 1.4rem 1.2rem;
        transition: all var(--transition-base);
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .os-card:hover {
        border-color: var(--border-hover);
        box-shadow: var(--shadow-glow);
        transform: translateY(-3px);
    }
    .os-card .os-icon {
        font-size: 2rem;
        color: var(--accent-secondary);
        margin-bottom: 0.6rem;
        display: block;
    }
    .os-card .os-name {
        font-size: 0.95rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 0.3rem;
    }
    .os-card .os-status {
        display: inline-flex;
        align-items: center;
        gap: 0.3rem;
        font-size: 0.7rem;
        color: var(--accent-green);
        background: rgba(163, 230, 53, 0.1);
        border: 1px solid rgba(163, 230, 53, 0.3);
        border-radius: 50px;
        padding: 0.15rem 0.6rem;
        margin-bottom: 0.5rem;
    }
    .os-card .os-status.partial {
        color: var(--accent-amber);
        background: rgba(245, 158, 11, 0.1);
        border-color: rgba(245, 158, 11, 0.3);
    }
    .os-card .os-desc {
        font-size: 0.75rem;
        color: var(--text-muted);
        line-height: 1.6;
    }
    .detect-tool-section {
        background: var(--bg-primary);
    }
    .detect-tool-box {
        background: linear-gradient(135deg, rgba(192, 38, 211, 0.08), rgba(34, 211, 238, 0.05));
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 2.4rem 2.2rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1.5rem;
        flex-wrap: wrap;
        position: relative;
        overflow: hidden;
    }
    .detect-tool-box::before {
        content: '';
        position: absolute;
        top: -100px;
        right: -60px;
        width: 320px;
        height: 320px;
        background: radial-gradient(circle, rgba(192, 38, 211, 0.18) 0%, transparent 70%);
        pointer-events: none;
    }
    .detect-tool-text {
        flex: 1 1 320px;
        position: relative;
        z-index: 1;
    }
    .detect-tool-text h2 {
        font-size: 1.4rem;
        font-weight: 800;
        color: var(--text-primary);
        letter-spacing: 0.02em;
        margin-bottom: 0.7rem;
    }
    .detect-tool-text p {
        font-size: 0.9rem;
        color: var(--text-secondary);
        line-height: 1.85;
        max-width: 520px;
        margin-bottom: 1.2rem;
    }
    .detect-tool-actions {
        display: flex;
        gap: 0.7rem;
        flex-wrap: wrap;
        position: relative;
        z-index: 1;
    }
    .compat-faq-section {
        background: var(--bg-tertiary);
        border-top: 1px solid var(--border-color);
    }
    .faq-container {
        max-width: 820px;
        margin: 0 auto;
    }
    .faq-item {
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        margin-bottom: 0.6rem;
        overflow: hidden;
        transition: all var(--transition-base);
    }
    .faq-item:hover {
        border-color: rgba(148, 163, 184, 0.3);
    }
    .faq-item.active {
        border-color: var(--border-hover);
        box-shadow: var(--shadow-glow);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding: 1rem 1.3rem;
        cursor: pointer;
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        color: var(--text-primary);
        font-size: 0.92rem;
        font-weight: 600;
        letter-spacing: 0.01em;
        transition: all var(--transition-fast);
        font-family: var(--font-sans);
    }
    .faq-question:hover {
        color: var(--accent-secondary);
    }
    .faq-question .faq-arrow {
        flex: 0 0 auto;
        font-size: 0.75rem;
        color: var(--text-muted);
        transition: transform var(--transition-base);
    }
    .faq-item.active .faq-arrow {
        transform: rotate(180deg);
        color: var(--accent-secondary);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }
    .faq-item.active .faq-answer {
        max-height: 300px;
    }
    .faq-answer-inner {
        padding: 0 1.3rem 1.1rem;
        font-size: 0.85rem;
        color: var(--text-secondary);
        line-height: 1.85;
        border-top: 1px solid rgba(148, 163, 184, 0.08);
        padding-top: 0.9rem;
    }
    .compat-cta-section {
        background: var(--bg-primary);
        position: relative;
        overflow: hidden;
    }
    .compat-cta-section::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 680px;
        height: 680px;
        background: radial-gradient(circle, rgba(192, 38, 211, 0.18) 0%, rgba(192, 38, 211, 0.05) 40%, transparent 70%);
        pointer-events: none;
    }
    .compat-cta-inner {
        position: relative;
        z-index: 1;
        text-align: center;
        max-width: 680px;
        margin: 0 auto;
    }
    .compat-cta-inner h2 {
        font-size: 1.7rem;
        font-weight: 800;
        color: var(--text-primary);
        letter-spacing: 0.02em;
        margin-bottom: 0.9rem;
    }
    .compat-cta-inner p {
        font-size: 0.95rem;
        color: var(--text-secondary);
        line-height: 1.85;
        margin-bottom: 1.4rem;
    }
    .site-footer {
        background: #0A0B0F;
        border-top: 1px solid var(--border-color);
        padding: 3.5rem 0 1.8rem;
    }
    .footer-brand {
        display: inline-flex;
        align-items: center;
        gap: 0.6rem;
        color: var(--text-primary);
        font-weight: 700;
        font-size: 1.1rem;
        letter-spacing: 0.03em;
        margin-bottom: 0.9rem;
    }
    .footer-desc {
        font-size: 0.8rem;
        color: var(--text-muted);
        line-height: 1.75;
        max-width: 280px;
    }
    .footer-heading {
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--text-primary);
        letter-spacing: 0.04em;
        margin-bottom: 0.9rem;
        text-transform: uppercase;
    }
    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-links li {
        margin-bottom: 0.45rem;
    }
    .footer-links a {
        font-size: 0.8rem;
        color: var(--text-muted);
        text-decoration: none;
        transition: color var(--transition-fast);
    }
    .footer-links a:hover {
        color: var(--accent-secondary);
    }
    .footer-tag-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 0.4rem;
    }
    .footer-tag {
        display: inline-flex;
        font-size: 0.7rem;
        color: var(--text-secondary);
        background: rgba(148, 163, 184, 0.08);
        border: 1px solid rgba(148, 163, 184, 0.2);
        border-radius: 50px;
        padding: 0.2rem 0.7rem;
        text-decoration: none;
        transition: all var(--transition-fast);
    }
    .footer-tag:hover {
        color: var(--accent-secondary);
        border-color: var(--border-hover);
        background: rgba(192, 38, 211, 0.1);
    }
    .footer-bottom {
        border-top: 1px solid rgba(148, 163, 184, 0.1);
        margin-top: 2rem;
        padding-top: 1.3rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        flex-wrap: wrap;
    }
    .footer-bottom p {
        font-size: 0.72rem;
        color: var(--text-muted);
        margin: 0;
        line-height: 1.7;
    }
    .footer-bottom a {
        font-size: 0.72rem;
        color: var(--text-muted);
        text-decoration: none;
        transition: color var(--transition-fast);
    }
    .footer-bottom a:hover {
        color: var(--accent-secondary);
    }
    .footer-bottom .footer-bottom-links {
        display: flex;
        gap: 1rem;
        flex-wrap: wrap;
    }
    @media (max-width: 992px) {
        .config-grid {
            grid-template-columns: 1fr;
        }
        .os-card-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .compat-hero-visual {
            flex: 0 0 280px;
            max-width: 280px;
        }
        .compat-hero h1 {
            font-size: 1.6rem;
        }
    }
    @media (max-width: 768px) {
        section {
            padding: 3rem 0;
        }
        .header-search {
            max-width: 160px;
        }
        .header-search input::placeholder {
            font-size: 0.65rem;
        }
        .nav-toggle-btn {
            display: inline-flex;
        }
        .nav-channels {
            display: none;
            flex-direction: column;
            align-items: stretch;
            gap: 0.2rem;
            padding: 0.6rem 0;
        }
        .nav-channels.show {
            display: flex;
        }
        .nav-link-pg {
            padding: 0.5rem 0.9rem;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }
        .hot-tags {
            display: none;
        }
        .hot-tags.show {
            display: flex;
        }
        .compat-hero {
            padding: 2.5rem 0 2.2rem;
        }
        .compat-hero-content {
            flex-direction: column;
            gap: 1.5rem;
        }
        .compat-hero-visual {
            flex: 0 0 auto;
            max-width: 100%;
            width: 100%;
            aspect-ratio: 16/9;
        }
        .compat-hero h1 {
            font-size: 1.4rem;
        }
        .compat-hero .hero-subtitle {
            font-size: 0.85rem;
        }
        .compat-hero .hero-stats {
            gap: 1.2rem;
        }
        .compat-hero .hero-stat-value {
            font-size: 1.15rem;
        }
        .compat-overview-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 0.7rem;
        }
        .os-card-grid {
            grid-template-columns: 1fr;
        }
        .detect-tool-box {
            flex-direction: column;
            text-align: center;
            padding: 1.8rem 1.4rem;
        }
        .detect-tool-text p {
            margin-left: auto;
            margin-right: auto;
        }
        .detect-tool-actions {
            justify-content: center;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
            gap: 0.6rem;
        }
        .footer-bottom .footer-bottom-links {
            justify-content: center;
        }
        .config-item {
            flex-wrap: wrap;
        }
        .config-item-label {
            flex: 0 0 100%;
            margin-bottom: 0.15rem;
        }
    }
    @media (max-width: 520px) {
        .container {
            padding-left: 1rem;
            padding-right: 1rem;
        }
        .header-brand-row {
            gap: 0.6rem;
        }
        .brand-logo {
            font-size: 1rem;
        }
        .logo-icon {
            width: 28px;
            height: 28px;
            font-size: 0.8rem;
        }
        .header-search {
            max-width: 120px;
            padding: 0.3rem 0.6rem;
        }
        .header-search input {
            font-size: 0.7rem;
        }
        .compat-hero {
            padding: 2rem 0 1.8rem;
        }
        .compat-hero h1 {
            font-size: 1.25rem;
        }
        .compat-hero .hero-actions {
            flex-direction: column;
            width: 100%;
        }
        .compat-hero .btn-pg-primary,
        .compat-hero .btn-pg-outline {
            width: 100%;
        }
        .compat-overview-grid {
            grid-template-columns: 1fr 1fr;
            gap: 0.5rem;
        }
        .compat-ov-card {
            padding: 0.9rem 0.7rem;
        }
        .compat-ov-value {
            font-size: 1.2rem;
        }
        .compat-ov-label {
            font-size: 0.68rem;
        }
        .config-primary-card,
        .config-secondary-card {
            padding: 1.2rem 1rem 1rem;
        }
        .config-card-title {
            font-size: 0.95rem;
        }
        .detect-tool-box {
            padding: 1.4rem 1rem;
        }
        .detect-tool-text h2 {
            font-size: 1.15rem;
        }
        .faq-question {
            padding: 0.85rem 1rem;
            font-size: 0.85rem;
        }
        .faq-answer-inner {
            padding: 0 1rem 0.9rem;
            font-size: 0.8rem;
        }
        .compat-cta-inner h2 {
            font-size: 1.3rem;
        }
    }

/* roulang page: category5 */
:root {
            --bg-primary: #0E0F13;
            --bg-secondary: #1A1B21;
            --bg-tertiary: #15161C;
            --accent-primary: #C026D3;
            --accent-secondary: #E879F9;
            --accent-cyan: #22D3EE;
            --accent-green: #A3E635;
            --accent-amber: #F59E0B;
            --text-primary: #F8FAFC;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: rgba(148, 163, 184, 0.16);
            --border-hover: rgba(192, 38, 211, 0.55);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 8px 32px rgba(192, 38, 211, 0.18);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Inter', 'Roboto', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Orbitron', 'Inter', 'Roboto', monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            background-color: var(--bg-primary);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-secondary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        section {
            padding: 4rem 0;
            position: relative;
        }
        .section-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.12);
            border: 1px solid rgba(192, 38, 211, 0.3);
            border-radius: 50px;
            padding: 0.3rem 0.9rem;
            margin-bottom: 0.7rem;
            text-transform: uppercase;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 720px;
            margin-bottom: 1.8rem;
            line-height: 1.8;
        }
        .text-glow-purple {
            text-shadow: 0 0 20px rgba(192, 38, 211, 0.45);
        }
        .text-accent {
            color: var(--accent-secondary);
        }
        .text-cyan {
            color: var(--accent-cyan);
        }
        .text-amber {
            color: var(--accent-amber);
        }

        /* Buttons */
        .btn-pg-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--accent-primary);
            color: #fff;
            border: 1px solid var(--accent-secondary);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.25);
        }
        .btn-pg-primary:hover {
            background: var(--accent-secondary);
            color: #fff;
            box-shadow: 0 6px 24px rgba(192, 38, 211, 0.45);
            transform: translateY(-1px);
        }
        .btn-pg-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(192, 38, 211, 0.3);
        }
        .btn-pg-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-pg-outline:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
            border-color: rgba(34, 211, 238, 0.7);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.2);
            transform: translateY(-1px);
        }
        .btn-pg-outline:active {
            transform: translateY(0);
        }
        .btn-pg-amber {
            background: var(--accent-amber);
            color: #1A1B21;
            border: 1px solid rgba(245, 158, 11, 0.6);
            font-weight: 700;
        }
        .btn-pg-amber:hover {
            background: #FBBF24;
            color: #1A1B21;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(14, 15, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.55);
            background: rgba(14, 15, 19, 0.97);
        }
        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.8rem 0;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }
        .brand-logo:hover {
            color: var(--accent-secondary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(192, 38, 211, 0.25), rgba(34, 211, 238, 0.15));
            border: 1px solid var(--border-color);
            color: var(--accent-secondary);
            font-size: 1rem;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.4rem 1rem;
            min-width: 260px;
            transition: all var(--transition-base);
        }
        .header-search:focus-within {
            border-color: var(--border-hover);
            box-shadow: 0 0 16px rgba(192, 38, 211, 0.18);
        }
        .header-search i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            width: 100%;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-toggle-btn {
            display: none;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .nav-toggle-btn:hover {
            border-color: var(--border-hover);
            color: var(--accent-secondary);
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.55rem 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        .nav-link-pg {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 1rem;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
            transition: all var(--transition-base);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-link-pg:hover {
            color: var(--accent-secondary);
            border-color: var(--border-color);
            background: rgba(192, 38, 211, 0.08);
        }
        .nav-link-pg.active {
            color: #fff;
            background: rgba(192, 38, 211, 0.2);
            border-color: var(--border-hover);
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.2);
        }
        .hot-tags {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.3rem 0 0.65rem;
            flex-wrap: wrap;
        }
        .hot-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.08);
            border: 1px solid rgba(245, 158, 11, 0.3);
            border-radius: 50px;
            padding: 0.25rem 0.8rem;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .hot-tag:hover {
            background: rgba(245, 158, 11, 0.18);
            border-color: rgba(245, 158, 11, 0.55);
            color: #FBBF24;
        }

        /* Breadcrumb */
        .breadcrumb-pg {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            padding: 1rem 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb-pg a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb-pg a:hover {
            color: var(--accent-secondary);
        }
        .breadcrumb-pg .separator {
            color: var(--text-muted);
            opacity: 0.5;
        }
        .breadcrumb-pg .current {
            color: var(--accent-secondary);
            font-weight: 500;
        }

        /* FAQ Hero */
        .faq-hero {
            padding: 2.5rem 0 2rem;
            position: relative;
            overflow: hidden;
        }
        .faq-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(192, 38, 211, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }
        .faq-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
        }
        .faq-hero .container {
            position: relative;
            z-index: 1;
        }
        .faq-hero .h1-title {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.35;
            margin-bottom: 0.8rem;
            letter-spacing: 0.01em;
        }
        .faq-hero .h1-title .highlight {
            color: var(--accent-secondary);
            text-shadow: 0 0 20px rgba(192, 38, 211, 0.4);
        }
        .faq-hero .hero-desc {
            font-size: 0.98rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.85;
            margin-bottom: 1.5rem;
        }
        .faq-search-box {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0.7rem 1.2rem;
            max-width: 560px;
            transition: all var(--transition-base);
        }
        .faq-search-box:focus-within {
            border-color: var(--border-hover);
            box-shadow: 0 4px 24px rgba(192, 38, 211, 0.2);
        }
        .faq-search-box i {
            color: var(--accent-secondary);
            font-size: 1rem;
        }
        .faq-search-box input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 0.92rem;
            width: 100%;
        }
        .faq-search-box input::placeholder {
            color: var(--text-muted);
        }

        /* Stats Bar */
        .stats-bar {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            padding: 1rem 0 0.5rem;
        }
        .stat-item {
            display: flex;
            align-items: baseline;
            gap: 0.4rem;
        }
        .stat-number {
            font-family: var(--font-mono);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-secondary);
            text-shadow: 0 0 16px rgba(192, 38, 211, 0.35);
        }
        .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* FAQ Main Area */
        .faq-main {
            padding: 2rem 0 3.5rem;
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 2rem;
            align-items: start;
        }
        .faq-sidebar {
            position: sticky;
            top: 120px;
        }
        .faq-sidebar-title {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 0.8rem;
        }
        .faq-category-list {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            margin-bottom: 1.2rem;
        }
        .faq-cat-btn {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0.5rem;
            padding: 0.55rem 1rem;
            border-radius: var(--radius-sm);
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: left;
            width: 100%;
        }
        .faq-cat-btn .cat-count {
            font-size: 0.72rem;
            color: var(--text-muted);
            background: var(--bg-tertiary);
            border-radius: 50px;
            padding: 0.1rem 0.6rem;
        }
        .faq-cat-btn:hover {
            border-color: var(--border-hover);
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.06);
        }
        .faq-cat-btn.active {
            background: rgba(192, 38, 211, 0.15);
            border-color: var(--border-hover);
            color: #fff;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.2);
        }
        .faq-cat-btn.active .cat-count {
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.2);
        }
        .faq-sidebar-divider {
            height: 1px;
            background: var(--border-color);
            margin: 1rem 0;
        }
        .quick-help-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.2rem;
        }
        .quick-help-card h3 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .quick-help-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 0.8rem;
            line-height: 1.7;
        }
        .quick-help-link {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.8rem;
            color: var(--accent-cyan);
            font-weight: 600;
            transition: color var(--transition-fast);
        }
        .quick-help-link:hover {
            color: var(--accent-secondary);
        }

        /* FAQ List */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: rgba(192, 38, 211, 0.3);
        }
        .faq-item.open {
            border-color: var(--border-hover);
            box-shadow: 0 4px 20px rgba(192, 38, 211, 0.12);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.5rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            cursor: pointer;
            transition: background var(--transition-fast);
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.6;
        }
        .faq-question:hover {
            background: rgba(192, 38, 211, 0.04);
        }
        .faq-question .question-text {
            flex: 1;
        }
        .faq-question .question-badge {
            display: inline-block;
            font-size: 0.68rem;
            font-weight: 600;
            color: var(--accent-amber);
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.3);
            border-radius: 50px;
            padding: 0.15rem 0.6rem;
            margin-right: 0.5rem;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .faq-question .fa-chevron-down {
            color: var(--text-muted);
            font-size: 0.8rem;
            transition: transform var(--transition-base) color var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--accent-secondary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base) padding var(--transition-base);
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.5rem 1.2rem;
        }
        .faq-answer-inner {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.85;
            border-top: 1px solid var(--border-color);
            padding-top: 1rem;
        }
        .faq-answer-inner .highlight-step {
            color: var(--accent-cyan);
            font-weight: 600;
        }
        .faq-answer-inner .highlight-warning {
            color: var(--accent-amber);
            font-weight: 600;
        }

        .no-result {
            text-align: center;
            padding: 2.5rem 1rem;
            background: var(--bg-secondary);
            border: 1px dashed var(--border-color);
            border-radius: var(--radius-md);
        }
        .no-result i {
            font-size: 2rem;
            color: var(--text-muted);
            margin-bottom: 0.8rem;
        }
        .no-result p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Featured Solutions */
        .featured-solutions {
            padding: 3rem 0;
            background: var(--bg-tertiary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
            margin-top: 1.5rem;
        }
        .solution-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .solution-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-cyan));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .solution-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .solution-card:hover::before {
            opacity: 1;
        }
        .solution-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: rgba(192, 38, 211, 0.12);
            border: 1px solid rgba(192, 38, 211, 0.25);
            color: var(--accent-secondary);
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }
        .solution-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .solution-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 0.8rem;
        }
        .solution-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent-cyan);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            transition: color var(--transition-fast);
        }
        .solution-link:hover {
            color: var(--accent-secondary);
        }

        /* Bottom CTA */
        .faq-cta {
            padding: 3.5rem 0;
            position: relative;
            overflow: hidden;
        }
        .faq-cta::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 700px;
            height: 400px;
            background: radial-gradient(ellipse, rgba(192, 38, 211, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .faq-cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .faq-cta-inner h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }
        .faq-cta-inner p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 1.5rem;
            line-height: 1.8;
        }
        .faq-cta-buttons {
            display: flex;
            gap: 0.8rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #0A0B0E;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
        }
        .footer-brand .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 0.85rem;
        }
        .footer-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 1rem;
        }
        .footer-heading {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            letter-spacing: 0.04em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }
        .footer-links a {
            font-size: 0.82rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .footer-links a:hover {
            color: var(--accent-secondary);
        }
        .footer-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }
        .footer-tag {
            font-size: 0.72rem;
            color: var(--text-muted);
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.25rem 0.7rem;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .footer-tag:hover {
            color: var(--accent-cyan);
            border-color: rgba(34, 211, 238, 0.4);
            background: rgba(34, 211, 238, 0.06);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            margin-top: 2rem;
            padding-top: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom .sep-dot {
            margin: 0 0.4rem;
            opacity: 0.4;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .faq-sidebar {
                position: static;
            }
            .faq-category-list {
                flex-direction: row;
                flex-wrap: wrap;
                overflow-x: auto;
                gap: 0.4rem;
                padding-bottom: 0.3rem;
            }
            .faq-cat-btn {
                flex-shrink: 0;
                white-space: nowrap;
                width: auto;
            }
            .quick-help-card {
                display: none;
            }
            .faq-sidebar-divider {
                display: none;
            }
            .solution-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767px) {
            section {
                padding: 2.5rem 0;
            }
            .header-search {
                display: none;
            }
            .nav-toggle-btn {
                display: inline-flex;
            }
            .nav-channels {
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 0.5rem 0;
                gap: 0.3rem;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-link-pg {
                width: 100%;
                justify-content: center;
                padding: 0.5rem 1rem;
            }
            .hot-tags {
                display: none;
            }
            .hot-tags.open {
                display: flex;
            }
            .faq-hero .h1-title {
                font-size: 1.4rem;
            }
            .faq-question {
                padding: 0.8rem 1rem;
                font-size: 0.88rem;
            }
            .faq-answer {
                padding: 0 1rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 1rem 1rem;
            }
            .solution-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                gap: 0.8rem;
            }
            .stat-number {
                font-size: 1.2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .faq-cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .faq-cta-buttons .btn-pg-primary,
            .faq-cta-buttons .btn-pg-outline {
                width: 100%;
                max-width: 280px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .faq-hero .h1-title {
                font-size: 1.25rem;
            }
            .faq-hero .hero-desc {
                font-size: 0.88rem;
            }
            .faq-search-box {
                padding: 0.55rem 1rem;
            }
            .faq-question .question-badge {
                display: none;
            }
            .breadcrumb-pg {
                font-size: 0.75rem;
            }
        }

/* roulang page: category6 */
:root {
            --bg-primary: #0E0F13;
            --bg-secondary: #1A1B21;
            --bg-tertiary: #15161C;
            --accent-primary: #C026D3;
            --accent-secondary: #E879F9;
            --accent-cyan: #22D3EE;
            --accent-green: #A3E635;
            --accent-amber: #F59E0B;
            --text-primary: #F8FAFC;
            --text-secondary: #CBD5E1;
            --text-muted: #64748B;
            --border-color: rgba(148, 163, 184, 0.16);
            --border-hover: rgba(192, 38, 211, 0.55);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 8px 32px rgba(192, 38, 211, 0.18);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
            --transition-fast: 0.2s ease;
            --transition-base: 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
            --font-sans: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Inter', 'Roboto', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-mono: 'Orbitron', 'Inter', 'Roboto', monospace;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            background-color: var(--bg-primary);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        section {
            padding: 4.5rem 0;
            position: relative;
        }

        .section-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.12);
            border: 1px solid rgba(192, 38, 211, 0.3);
            border-radius: 50px;
            padding: 0.3rem 0.9rem;
            margin-bottom: 0.7rem;
            text-transform: uppercase;
        }

        .section-title {
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.75rem;
            letter-spacing: 0.01em;
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 760px;
            margin-bottom: 1.8rem;
            line-height: 1.8;
        }

        .text-glow-purple {
            text-shadow: 0 0 20px rgba(192, 38, 211, 0.45);
        }

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

        .text-cyan {
            color: var(--accent-cyan);
        }

        .text-amber {
            color: var(--accent-amber);
        }

        .btn-pg-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--accent-primary);
            color: #fff;
            border: 1px solid var(--accent-secondary);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.25);
        }

        .btn-pg-primary:hover {
            background: var(--accent-secondary);
            color: #fff;
            box-shadow: 0 6px 24px rgba(192, 38, 211, 0.45);
            transform: translateY(-1px);
        }

        .btn-pg-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid var(--accent-cyan);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1.6rem;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
        }

        .btn-pg-outline:hover {
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
            border-color: rgba(34, 211, 238, 0.7);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.2);
            transform: translateY(-1px);
        }

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

        .btn-pg-amber {
            background: var(--accent-amber);
            color: #1A1B21;
            border: 1px solid rgba(245, 158, 11, 0.6);
            font-weight: 700;
        }

        .btn-pg-amber:hover {
            background: #FBBF24;
            color: #1A1B21;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(14, 15, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
        }

        .header-brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.15rem;
            letter-spacing: 0.02em;
            text-decoration: none;
        }

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

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, rgba(192, 38, 211, 0.35), rgba(34, 211, 238, 0.25));
            border: 1px solid rgba(192, 38, 211, 0.5);
            border-radius: var(--radius-sm);
            color: var(--accent-secondary);
            font-size: 1rem;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0.35rem 0.9rem;
            min-width: 220px;
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: all var(--transition-base);
        }

        .header-search:focus-within {
            border-color: var(--border-hover);
            box-shadow: 0 0 12px rgba(192, 38, 211, 0.2);
        }

        .header-search input {
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            outline: none;
            width: 100%;
            font-family: var(--font-sans);
        }

        .header-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-toggle-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            padding: 0.4rem 0.65rem;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .nav-toggle-btn:hover {
            border-color: var(--border-hover);
            color: var(--accent-secondary);
        }

        .nav-channels {
            display: flex;
            flex-wrap: wrap;
            gap: 0.35rem;
            padding: 0.5rem 0 0.65rem;
            border-top: 1px solid var(--border-color);
        }

        .nav-link-pg {
            display: inline-block;
            padding: 0.35rem 0.9rem;
            border-radius: 50px;
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-link-pg:hover {
            color: var(--accent-secondary);
            background: rgba(192, 38, 211, 0.1);
        }

        .nav-link-pg.active {
            color: #fff;
            background: var(--accent-primary);
            border: 1px solid var(--accent-secondary);
            box-shadow: 0 2px 12px rgba(192, 38, 211, 0.3);
        }

        .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            padding: 0 0 0.6rem;
        }

        .hot-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            font-size: 0.72rem;
            color: var(--accent-amber);
            border: 1px solid rgba(245, 158, 11, 0.4);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .hot-tag:hover {
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-amber);
        }

        .breadcrumb-pg {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 0.8rem;
        }

        .breadcrumb-pg a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-pg .separator {
            color: var(--text-muted);
            opacity: 0.6;
        }

        .resource-hero {
            padding: 3.5rem 0 3rem;
            background: linear-gradient(180deg, rgba(192, 38, 211, 0.06) 0%, transparent 55%);
            position: relative;
        }

        .resource-hero::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(192, 38, 211, 0.28) 0%, rgba(34, 211, 238, 0.08) 55%, transparent 75%);
            border-radius: 50%;
            pointer-events: none;
        }

        .resource-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, rgba(192, 38, 211, 0.05) 55%, transparent 75%);
            border-radius: 50%;
            pointer-events: none;
        }

        .stats-bar {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem 2rem;
            margin-top: 2rem;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            box-shadow: var(--shadow-card);
            position: relative;
            z-index: 2;
        }

        .stat-item {
            text-align: center;
            border-right: 1px solid var(--border-color);
            padding: 0.5rem 1rem;
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--accent-secondary);
            line-height: 1.2;
            letter-spacing: 0.03em;
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        .resource-section {
            padding: 4.5rem 0;
        }

        .resource-section:nth-child(even) {
            background: rgba(21, 22, 28, 0.5);
        }

        .section-header-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .section-header-row .section-title {
            margin-bottom: 0;
        }

        .download-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .download-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-primary), var(--accent-cyan));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

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

        .download-card-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: var(--radius-sm);
            background: rgba(192, 38, 211, 0.15);
            color: var(--accent-secondary);
            font-size: 1.2rem;
            margin-bottom: 1rem;
            border: 1px solid rgba(192, 38, 211, 0.3);
        }

        .download-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
            line-height: 1.3;
        }

        .download-card-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0.8rem;
            line-height: 1.6;
            flex-grow: 1;
        }

        .download-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .download-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        .badge-version {
            display: inline-block;
            background: rgba(34, 211, 238, 0.12);
            color: var(--accent-cyan);
            border: 1px solid rgba(34, 211, 238, 0.35);
            border-radius: 4px;
            padding: 0.1rem 0.5rem;
            font-size: 0.7rem;
            font-weight: 600;
        }

        .badge-hot {
            display: inline-block;
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-amber);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 4px;
            padding: 0.1rem 0.5rem;
            font-size: 0.7rem;
            font-weight: 600;
        }

        .download-card .btn-pg-primary {
            padding: 0.5rem 1.1rem;
            font-size: 0.85rem;
            align-self: flex-start;
        }

        .install-guide {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            margin-top: 2rem;
            position: relative;
            overflow: hidden;
        }

        .install-guide::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(192, 38, 211, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .install-guide-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 1.5rem;
            border: 1px solid var(--border-color);
        }

        .install-guide-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .step-item {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            padding: 0.75rem 1rem;
            background: var(--bg-tertiary);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .step-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

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

        .faq-item.open {
            border-color: var(--border-hover);
            box-shadow: 0 0 16px rgba(192, 38, 211, 0.15);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.25rem;
            cursor: pointer;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            gap: 1rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question .fa-chevron-down {
            color: var(--text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--accent-secondary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            padding: 0 1.25rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.2rem;
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(192, 38, 211, 0.1) 0%, rgba(34, 211, 238, 0.05) 50%, rgba(245, 158, 11, 0.08) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 4rem 0;
        }

        .cta-section .section-title {
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }

        .cta-section .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            justify-content: center;
            margin-top: 1.5rem;
        }

        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            padding: 3.5rem 0 1.5rem;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }

        .footer-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.82rem;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent-secondary);
        }

        .footer-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }

        .footer-tag {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            border-radius: 50px;
            font-size: 0.72rem;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .footer-tag:hover {
            color: var(--accent-secondary);
            border-color: var(--border-hover);
            background: rgba(192, 38, 211, 0.08);
        }

        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-contact i {
            color: var(--accent-cyan);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        @media (max-width: 991px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                padding: 1.25rem 1rem;
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--border-color);
                padding-bottom: 0.8rem;
            }
            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }
            section {
                padding: 3.5rem 0;
            }
            .install-guide {
                padding: 1.5rem;
            }
        }

        @media (max-width: 767px) {
            .header-brand-row {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .header-search {
                min-width: 0;
                flex: 1;
            }
            .nav-toggle-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-channels {
                display: none;
                flex-direction: column;
                gap: 0.15rem;
                padding-top: 0.5rem;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-link-pg {
                display: block;
                padding: 0.5rem 0.9rem;
            }
            .hot-tags {
                display: none;
            }
            .hot-tags.open {
                display: flex;
            }
            .resource-hero {
                padding: 2.5rem 0 2rem;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.6rem;
                padding: 1rem 0.75rem;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .stat-label {
                font-size: 0.72rem;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .section-header-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .download-card {
                padding: 1.2rem;
            }
            .install-guide {
                padding: 1.2rem;
            }
            .install-guide-image img {
                height: 180px;
            }
            .cta-section .section-title {
                font-size: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 0.4rem;
            }
            .stat-number {
                font-size: 1.2rem;
            }
            .btn-pg-primary,
            .btn-pg-outline {
                padding: 0.55rem 1.1rem;
                font-size: 0.85rem;
            }
            section {
                padding: 2.5rem 0;
            }
        }