/* roulang page: index */
:root {
            --bg-primary: #0a0e1a;
            --bg-secondary: #0f1525;
            --bg-card: #141b2d;
            --bg-card-hover: #1a2340;
            --bg-panel: #111827;
            --text-primary: #e8ecf4;
            --text-secondary: #b0b8cc;
            --text-muted: #6b7394;
            --accent-cyan: #00d4ff;
            --accent-purple: #a855f7;
            --accent-pink: #f43f5e;
            --accent-green: #22d3bb;
            --accent-amber: #f59e0b;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-card: rgba(255, 255, 255, 0.08);
            --border-glow: rgba(0, 212, 255, 0.25);
            --glow-cyan: 0 0 24px rgba(0, 212, 255, 0.35), 0 0 60px rgba(0, 212, 255, 0.1);
            --glow-purple: 0 0 24px rgba(168, 85, 247, 0.35), 0 0 60px rgba(168, 85, 247, 0.1);
            --glow-pink: 0 0 20px rgba(244, 63, 94, 0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.55);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1260px;
            --nav-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            background-image:
                radial-gradient(ellipse at 50% 0%, rgba(0, 212, 255, 0.04) 0%, transparent 65%),
                radial-gradient(ellipse at 80% 20%, rgba(168, 85, 247, 0.03) 0%, transparent 55%),
                radial-gradient(ellipse at 20% 60%, rgba(244, 63, 94, 0.02) 0%, transparent 50%);
            background-attachment: fixed;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
            background-image:
                repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.008) 2px, rgba(255, 255, 255, 0.008) 4px),
                repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255, 255, 255, 0.006) 2px, rgba(255, 255, 255, 0.006) 4px);
            opacity: 0.6;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
            z-index: 1;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(10, 14, 26, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            height: var(--nav-height);
        }
        .site-header.scrolled {
            background: rgba(10, 14, 26, 0.94);
            box-shadow: 0 2px 32px rgba(0, 0, 0, 0.5);
            border-bottom-color: var(--border-card);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 32px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            white-space: nowrap;
            transition: color var(--transition-fast);
            position: relative;
        }
        .logo-link:hover {
            color: var(--accent-cyan);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 900;
            color: #fff;
            box-shadow: var(--glow-cyan);
            flex-shrink: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.01em;
        }
        .nav-list a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-list a.active {
            color: #fff;
            background: rgba(0, 212, 255, 0.12);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.18);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 999px;
            background: var(--accent-cyan);
            box-shadow: var(--glow-cyan);
        }
        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            background: none;
            border: none;
        }
        .mobile-menu-btn span {
            display: block;
            width: 26px;
            height: 2.5px;
            border-radius: 999px;
            background: var(--text-primary);
            transition: all var(--transition-smooth);
        }
        .mobile-menu-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 14, 26, 0.96);
            backdrop-filter: blur(8px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
        }
        .mobile-nav-overlay.open {
            display: flex;
        }
        .mobile-nav-overlay a {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-secondary);
            padding: 12px 28px;
            border-radius: 999px;
            transition: all var(--transition-fast);
        }
        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: #fff;
            background: rgba(0, 212, 255, 0.15);
            box-shadow: var(--glow-cyan);
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 26, 0.7) 0%, rgba(10, 14, 26, 0.82) 40%, rgba(10, 14, 26, 0.92) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            top: 30%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
            animation: heroPulse 4s ease-in-out infinite;
        }
        @keyframes heroPulse {
            0%,
            100% {
                transform: translate(-50%, -50%) scale(1);
                opacity: 0.7;
            }
            50% {
                transform: translate(-50%, -50%) scale(1.2);
                opacity: 1;
            }
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 212, 255, 0.3);
            background: rgba(0, 212, 255, 0.06);
            margin-bottom: 20px;
            animation: fadeInUp 0.6s ease;
        }
        .hero-title {
            font-size: clamp(2.4rem, 5.5vw, 3.8rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
            animation: fadeInUp 0.6s ease 0.1s both;
            background: linear-gradient(135deg, #fff 0%, #c8d6e5 40%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.6;
            animation: fadeInUp 0.6s ease 0.2s both;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
            animation: fadeInUp 0.6s ease 0.3s both;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-smooth);
            cursor: pointer;
            position: relative;
            overflow: hidden;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-cyan), #0099cc);
            color: #fff;
            box-shadow: var(--glow-cyan);
        }
        .btn-primary:hover {
            box-shadow: 0 0 36px rgba(0, 212, 255, 0.5), 0 0 80px rgba(0, 212, 255, 0.18);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid rgba(255, 255, 255, 0.25);
        }
        .btn-outline:hover {
            border-color: var(--accent-purple);
            box-shadow: var(--glow-purple);
            background: rgba(168, 85, 247, 0.08);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.9rem;
            border-radius: 999px;
        }
        .btn-ghost {
            background: transparent;
            color: var(--accent-cyan);
            padding: 8px 16px;
            font-weight: 600;
            border-radius: 999px;
        }
        .btn-ghost:hover {
            background: rgba(0, 212, 255, 0.08);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
            position: relative;
            z-index: 1;
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-cyan);
            margin-bottom: 10px;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(0, 212, 255, 0.07);
            border: 1px solid rgba(0, 212, 255, 0.2);
        }
        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 900;
            letter-spacing: 0.01em;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .section-desc {
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto;
            font-size: 1.02rem;
        }

        /* ========== FEATURES GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
            opacity: 0;
            transition: opacity var(--transition-smooth);
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }
        .feature-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card), 0 0 40px rgba(0, 212, 255, 0.08);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(168, 85, 247, 0.12));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 18px;
            border: 1px solid rgba(0, 212, 255, 0.2);
        }
        .feature-card h3 {
            font-size: 1.18rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .feature-card img {
            width: 100%;
            border-radius: var(--radius-md);
            margin-top: 16px;
            border: 1px solid var(--border-card);
        }

        /* ========== CATEGORY ENTRY ========== */
        .category-entry-card {
            display: flex;
            align-items: center;
            gap: 40px;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
            text-decoration: none;
        }
        .category-entry-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-lg), 0 0 50px rgba(0, 212, 255, 0.08);
            transform: translateY(-3px);
        }
        .category-entry-card .entry-img {
            width: 280px;
            flex-shrink: 0;
            min-height: 220px;
            object-fit: cover;
            border-radius: var(--radius-xl) 0 0 var(--radius-xl);
        }
        .category-entry-card .entry-body {
            padding: 28px 32px 28px 0;
        }
        .category-entry-card .entry-body h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .category-entry-card .entry-body p {
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.6;
        }

        /* ========== CMS LIST ========== */
        .cms-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .cms-list-item {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 20px;
            transition: all var(--transition-smooth);
            text-decoration: none;
            color: inherit;
        }
        .cms-list-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
            background: var(--bg-card-hover);
        }
        .cms-list-item .cms-thumb {
            width: 120px;
            height: 90px;
            flex-shrink: 0;
            border-radius: var(--radius-md);
            object-fit: cover;
            border: 1px solid var(--border-card);
        }
        .cms-list-item .cms-info {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cms-list-item .cms-info h4 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .cms-list-item:hover .cms-info h4 {
            color: var(--accent-cyan);
        }
        .cms-list-item .cms-info .cms-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .cms-list-item .cms-info .cms-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-top: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cms-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 1.05rem;
            grid-column: 1 / -1;
        }
        .cms-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 212, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 212, 255, 0.2);
        }

        /* ========== STATS ========== */
        .stats-row {
            display: flex;
            gap: 24px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .stat-block {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 28px 36px;
            text-align: center;
            min-width: 160px;
            flex: 1;
            max-width: 220px;
            transition: all var(--transition-smooth);
        }
        .stat-block:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* ========== STEPS ========== */
        .steps-list {
            display: flex;
            gap: 28px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .step-item {
            flex: 1;
            min-width: 200px;
            max-width: 300px;
            text-align: center;
            padding: 28px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            transition: all var(--transition-smooth);
            position: relative;
        }
        .step-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            color: #fff;
            font-weight: 900;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            box-shadow: var(--glow-cyan);
        }
        .step-item h4 {
            font-weight: 700;
            margin-bottom: 6px;
            font-size: 1.08rem;
        }
        .step-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1.02rem;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        .faq-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all var(--transition-smooth);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            background: rgba(0, 212, 255, 0.12);
            color: var(--accent-cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 220px;
            padding: 0 24px 18px;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(168, 85, 247, 0.08));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-banner h3 {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            font-size: 1.05rem;
        }
        .cta-banner .btn {
            position: relative;
            z-index: 1;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-card);
            padding: 40px 0 28px;
            position: relative;
            z-index: 1;
        }
        .footer-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        .footer-brand {
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-primary);
        }
        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-cyan);
        }
        .footer-copy {
            width: 100%;
            text-align: center;
            margin-top: 18px;
            color: var(--text-muted);
            font-size: 0.82rem;
            border-top: 1px solid var(--border-subtle);
            padding-top: 18px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cms-list-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-entry-card {
                flex-direction: column;
                gap: 0;
            }
            .category-entry-card .entry-img {
                width: 100%;
                min-height: 180px;
                border-radius: var(--radius-xl) var(--radius-xl) 0 0;
                max-height: 200px;
            }
            .category-entry-card .entry-body {
                padding: 22px 24px;
            }
            .stats-row {
                gap: 16px;
            }
            .stat-block {
                min-width: 130px;
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cms-list-grid {
                grid-template-columns: 1fr;
            }
            .cms-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .cms-list-item .cms-thumb {
                width: 100%;
                height: 160px;
            }
            .hero-section {
                min-height: 80vh;
                padding: 100px 16px 60px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .steps-list {
                flex-direction: column;
                align-items: center;
            }
            .step-item {
                max-width: 100%;
                width: 100%;
            }
            .stats-row {
                flex-direction: column;
                align-items: center;
            }
            .stat-block {
                max-width: 100%;
                width: 100%;
            }
            .cta-banner {
                padding: 32px 20px;
            }
            .cta-banner h3 {
                font-size: 1.3rem;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
            .container {
                padding: 0 14px;
            }
            .header-inner {
                gap: 16px;
            }
            .logo-link {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }
            .category-entry-card .entry-img {
                min-height: 140px;
                max-height: 150px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #07070f;
            --bg-secondary: #0d0d1c;
            --bg-card: #12122a;
            --bg-card-hover: #181838;
            --border-subtle: #1e1e3f;
            --border-glow: #3a2a5e;
            --text-primary: #e8e8f8;
            --text-secondary: #b0b0cc;
            --text-muted: #6e6e96;
            --neon-purple: #b84dff;
            --neon-purple-glow: rgba(184, 77, 255, 0.35);
            --neon-cyan: #00e0ff;
            --neon-cyan-glow: rgba(0, 224, 255, 0.3);
            --neon-pink: #ff3378;
            --neon-pink-glow: rgba(255, 51, 120, 0.35);
            --accent-amber: #ffb347;
            --gradient-hero: linear-gradient(160deg, #0a0a1e 0%, #0f0f2e 40%, #12102a 70%, #0a0a1e 100%);
            --gradient-card-border: linear-gradient(135deg, var(--neon-purple) 0%, var(--neon-cyan) 50%, var(--neon-pink) 100%);
            --shadow-neon-purple: 0 0 24px rgba(184, 77, 255, 0.25), 0 0 60px rgba(184, 77, 255, 0.08);
            --shadow-neon-cyan: 0 0 18px rgba(0, 224, 255, 0.2), 0 0 40px rgba(0, 224, 255, 0.06);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4), 0 1px 0 rgba(255, 255, 255, 0.03) inset;
            --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.55), 0 0 30px var(--neon-purple-glow), 0 1px 0 rgba(255, 255, 255, 0.05) inset;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --font-display: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', system-ui, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --container-max: 1100px;
            --container-narrow: 820px;
            --header-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            background-image:
                radial-gradient(ellipse at 15% 20%, rgba(184, 77, 255, 0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 60%, rgba(0, 224, 255, 0.03) 0%, transparent 55%),
                radial-gradient(ellipse at 40% 85%, rgba(255, 51, 120, 0.03) 0%, transparent 50%);
            background-attachment: fixed;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: var(--container-narrow);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 10, 25, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--header-height);
            display: flex;
            align-items: center;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            z-index: 1001;
        }

        .logo-link:hover {
            color: var(--neon-purple);
            text-shadow: 0 0 20px var(--neon-purple-glow);
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--gradient-card-border);
            color: #fff;
            font-size: 1rem;
            font-weight: 900;
            box-shadow: var(--shadow-neon-purple);
            flex-shrink: 0;
        }

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

        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-normal);
            position: relative;
            letter-spacing: 0.01em;
        }

        .nav-list a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-list a.active {
            color: #fff;
            background: rgba(184, 77, 255, 0.15);
            box-shadow: 0 0 16px rgba(184, 77, 255, 0.2);
            font-weight: 600;
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            z-index: 1001;
        }

        .mobile-menu-btn span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-normal);
            transform-origin: center;
        }

        .mobile-menu-btn.menu-open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .mobile-menu-btn.menu-open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .mobile-menu-btn.menu-open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Article Banner */
        .article-banner {
            position: relative;
            background: var(--gradient-hero);
            min-height: 300px;
            display: flex;
            align-items: center;
            overflow: hidden;
            border-bottom: 1px solid var(--border-subtle);
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

        .article-banner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(7, 7, 15, 0.3) 0%, rgba(7, 7, 15, 0.85) 100%);
            pointer-events: none;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0 44px;
            text-align: center;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--text-muted);
            user-select: none;
        }

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

        .article-category-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            background: rgba(184, 77, 255, 0.18);
            color: var(--neon-purple);
            border: 1px solid rgba(184, 77, 255, 0.3);
            margin-bottom: 16px;
        }

        .banner-title {
            font-family: var(--font-display);
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            letter-spacing: 0.02em;
            max-width: 750px;
            margin: 0 auto 14px;
            text-shadow: 0 0 40px rgba(184, 77, 255, 0.3);
        }

        .banner-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

        .banner-meta .meta-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--neon-cyan);
            box-shadow: 0 0 8px var(--neon-cyan-glow);
        }

        /* Article Body */
        .article-body-section {
            padding: 48px 0 20px;
        }

        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 44px 48px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .article-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--gradient-card-border);
            border-radius: 0 0 50% 50%;
            opacity: 0.7;
        }

        .article-featured-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
            border: 1px solid var(--border-subtle);
        }

        .article-featured-image img {
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16 / 9;
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }

        .article-content h2 {
            font-family: var(--font-display);
            font-size: 1.55rem;
            font-weight: 700;
            color: #fff;
            margin: 36px 0 16px;
            letter-spacing: 0.01em;
            position: relative;
            padding-left: 18px;
        }

        .article-content h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 3px;
            border-radius: 3px;
            background: var(--neon-purple);
            box-shadow: 0 0 12px var(--neon-purple-glow);
        }

        .article-content h3 {
            font-family: var(--font-display);
            font-size: 1.25rem;
            font-weight: 600;
            color: #e8e8f8;
            margin: 26px 0 12px;
        }

        .article-content p {
            margin-bottom: 16px;
        }

        .article-content ul,
        .article-content ol {
            margin: 12px 0 18px 20px;
        }

        .article-content li {
            margin-bottom: 8px;
            position: relative;
            padding-left: 4px;
        }

        .article-content li::marker {
            color: var(--neon-purple);
        }

        .article-content strong {
            color: #f0f0ff;
            font-weight: 600;
        }

        .article-content blockquote {
            border-left: 3px solid var(--neon-cyan);
            margin: 20px 0;
            padding: 16px 22px;
            background: rgba(0, 224, 255, 0.04);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-primary);
            font-style: italic;
            box-shadow: inset 0 0 20px rgba(0, 224, 255, 0.03);
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            border: 1px solid var(--border-subtle);
        }

        .article-content code {
            background: rgba(184, 77, 255, 0.1);
            padding: 2px 8px;
            border-radius: 3px;
            font-size: 0.9em;
            color: var(--neon-purple);
        }

        .article-content pre {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            overflow-x: auto;
            margin: 18px 0;
        }

        .article-content pre code {
            background: none;
            padding: 0;
            color: var(--text-secondary);
        }

        /* Article Footer Meta */
        .article-footer-meta {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

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

        .tag-pill {
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-subtle);
            color: var(--text-muted);
            transition: all var(--transition-fast);
        }

        .tag-pill:hover {
            border-color: var(--neon-purple);
            color: var(--neon-purple);
            background: rgba(184, 77, 255, 0.08);
            box-shadow: 0 0 12px rgba(184, 77, 255, 0.15);
        }

        .share-hint {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .share-icons {
            display: flex;
            gap: 8px;
        }

        .share-icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: all var(--transition-normal);
            font-size: 0.85rem;
        }

        .share-icon-btn:hover {
            border-color: var(--neon-cyan);
            color: var(--neon-cyan);
            box-shadow: var(--shadow-neon-cyan);
            transform: translateY(-2px);
        }

        /* Related Posts */
        .related-section {
            padding: 20px 0 48px;
        }

        .section-label {
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
            position: relative;
            display: inline-block;
        }

        .section-label::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 50%;
            height: 2px;
            border-radius: 2px;
            background: var(--neon-purple);
            box-shadow: 0 0 10px var(--neon-purple-glow);
        }

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

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

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-glow);
        }

        .related-card-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }

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

        .related-card:hover .related-card-img img {
            transform: scale(1.06);
        }

        .related-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(7, 7, 15, 0.8) 100%);
            pointer-events: none;
        }

        .related-card-body {
            padding: 16px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-cat {
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--neon-purple);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .related-card-title {
            font-weight: 600;
            font-size: 0.98rem;
            color: #e0e0f0;
            line-height: 1.45;
            margin-bottom: 10px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card:hover .related-card-title {
            color: #fff;
        }

        .related-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Not Found */
        .not-found-section {
            padding: 80px 0;
            text-align: center;
            min-height: 50vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .not-found-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            max-width: 520px;
            width: 100%;
        }

        .not-found-icon {
            font-size: 4rem;
            margin-bottom: 20px;
            display: block;
        }

        .not-found-title {
            font-family: var(--font-display);
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .not-found-text {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 0.95rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            background: var(--gradient-card-border);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-neon-purple);
            text-decoration: none;
        }

        .btn-primary:hover {
            box-shadow: 0 0 36px rgba(184, 77, 255, 0.45), 0 0 70px rgba(184, 77, 255, 0.15);
            transform: translateY(-2px);
            color: #fff;
        }

        /* CTA Section */
        .cta-section {
            padding: 40px 0 56px;
            text-align: center;
        }

        .cta-card {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(184, 77, 255, 0.08);
            pointer-events: none;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(0, 224, 255, 0.06);
            pointer-events: none;
        }

        .cta-card h3 {
            position: relative;
            z-index: 1;
            font-family: var(--font-display);
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .cta-card p {
            position: relative;
            z-index: 1;
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 0.95rem;
        }

        .cta-card .btn-primary {
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 32px 0 24px;
            margin-top: 20px;
        }

        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 16px;
        }

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

        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--neon-cyan);
        }

        .footer-copy {
            font-size: 0.78rem;
            color: var(--text-muted);
            text-align: center;
        }

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

            .banner-title {
                font-size: 2rem;
            }

            .article-card {
                padding: 32px 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
            }

            .nav-list {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(14, 14, 30, 0.96);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                flex-direction: column;
                padding: 90px 28px 40px;
                gap: 4px;
                transition: right var(--transition-slow);
                border-left: 1px solid var(--border-subtle);
                box-shadow: -4px 0 30px rgba(0, 0, 0, 0.5);
                z-index: 999;
            }

            .nav-list.mobile-open {
                right: 0;
            }

            .nav-list a {
                width: 100%;
                padding: 12px 18px;
                font-size: 1rem;
                border-radius: var(--radius-md);
            }

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

            .banner-title {
                font-size: 1.6rem;
            }

            .banner-meta {
                gap: 12px;
                font-size: 0.8rem;
            }

            .article-card {
                padding: 24px 18px;
                border-radius: var(--radius-lg);
            }

            .article-content {
                font-size: 0.95rem;
            }

            .article-content h2 {
                font-size: 1.3rem;
            }

            .article-content h3 {
                font-size: 1.1rem;
            }

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

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

            .cta-card {
                padding: 30px 20px;
            }

            .cta-card h3 {
                font-size: 1.2rem;
            }

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

            .footer-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container,
            .container-narrow {
                padding: 0 14px;
            }

            .banner-title {
                font-size: 1.3rem;
            }

            .banner-content {
                padding: 40px 0 30px;
            }

            .article-card {
                padding: 18px 14px;
                border-radius: var(--radius-md);
            }

            .article-featured-image {
                border-radius: var(--radius-md);
                margin-bottom: 20px;
            }

            .article-content {
                font-size: 0.9rem;
                line-height: 1.75;
            }

            .article-content h2 {
                font-size: 1.15rem;
                margin-top: 24px;
                padding-left: 14px;
            }

            .article-content h2::before {
                width: 2px;
            }

            .banner-meta {
                gap: 8px;
            }

            .related-card-body {
                padding: 12px 14px 16px;
            }

            .not-found-card {
                padding: 36px 20px;
            }
        }

        @media (min-width: 769px) {
            .nav-list.mobile-open {
                right: unset;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --bg-deep: #06060f;
            --bg-panel: #0e0e24;
            --bg-card: #14142d;
            --bg-card-hover: #1a1a3a;
            --bg-nav: rgba(10, 10, 30, 0.92);
            --border-subtle: rgba(120, 120, 200, 0.15);
            --border-glow: rgba(0, 229, 255, 0.3);
            --text-primary: #e8e8f0;
            --text-secondary: #a0a0c0;
            --text-muted: #6a6a8a;
            --accent-cyan: #00e5ff;
            --accent-purple: #b388ff;
            --accent-pink: #ff4081;
            --accent-green: #69f0ae;
            --accent-orange: #ffab40;
            --gradient-hero: linear-gradient(160deg, rgba(10, 10, 35, 0.85) 0%, rgba(6, 6, 20, 0.95) 100%);
            --gradient-card: linear-gradient(180deg, rgba(20, 20, 50, 0.6) 0%, rgba(14, 14, 36, 0.95) 100%);
            --gradient-btn: linear-gradient(135deg, #00e5ff 0%, #0091ea 100%);
            --gradient-btn-hover: linear-gradient(135deg, #40f0ff 0%, #00b0f0 100%);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 229, 255, 0.06);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 229, 255, 0.15);
            --shadow-glow: 0 0 30px rgba(0, 229, 255, 0.2), 0 0 60px rgba(179, 136, 255, 0.1);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
        }

        /* ============ Reset & Base ============ */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

        html { scroll-behavior: smooth; font-size: 16px; }

        body {
            font-family: var(--font-family);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input { font-family: inherit; }
        ul, ol { list-style: none; }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ Header / Navigation ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--bg-nav);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .logo-link:hover { color: var(--accent-cyan); }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--gradient-btn);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
        }

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

        .nav-list a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 24px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            position: relative;
        }
        .nav-list a:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }
        .nav-list a.active {
            color: #fff;
            background: rgba(0, 229, 255, 0.12);
            box-shadow: inset 0 0 0 1px rgba(0, 229, 255, 0.25);
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 36px;
            height: 36px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-menu-btn:hover { background: rgba(255,255,255,0.06); }
        .mobile-menu-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }

        /* ============ Category Banner ============ */
        .category-banner {
            position: relative;
            margin-top: 64px;
            padding: 72px 0 56px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-hero);
            z-index: 1;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(180deg, transparent 0%, var(--bg-deep) 100%);
            z-index: 2;
        }
        .banner-content {
            position: relative;
            z-index: 3;
            text-align: center;
        }
        .banner-badge {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--accent-cyan);
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.25);
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .banner-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: 0.03em;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .banner-content h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .banner-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .banner-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .banner-stat {
            text-align: center;
        }
        .banner-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1;
        }
        .banner-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ============ Sub-category Filter ============ */
        .filter-section {
            padding: 32px 0 8px;
            position: relative;
            z-index: 5;
        }
        .filter-scroll {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: all var(--transition-smooth);
            white-space: nowrap;
            user-select: none;
        }
        .filter-tag:hover {
            color: var(--text-primary);
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
        }
        .filter-tag.active {
            color: #fff;
            background: rgba(0, 229, 255, 0.15);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.15);
        }

        /* ============ Article Grid ============ */
        .articles-section {
            padding: 40px 0 60px;
        }
        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 16px;
        }
        .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-header h2::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 22px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
        }
        .sort-options {
            display: flex;
            gap: 8px;
        }
        .sort-btn {
            padding: 7px 16px;
            border-radius: 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: all var(--transition-smooth);
        }
        .sort-btn:hover { color: var(--text-primary); border-color: var(--border-glow); }
        .sort-btn.active { color: var(--accent-cyan); border-color: var(--accent-cyan); background: rgba(0,229,255,0.08); }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
        }
        .article-card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-panel);
        }
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .article-card:hover .article-card-img img {
            transform: scale(1.06);
        }
        .article-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #fff;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.15);
            letter-spacing: 0.04em;
        }
        .article-card-body {
            padding: 20px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .article-card:hover .article-card-body h3 {
            color: var(--accent-cyan);
        }
        .article-card-body .excerpt {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 14px;
            padding-top: 12px;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .article-card-meta .views {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .article-card-meta .views::before {
            content: '👁';
            font-size: 0.75rem;
        }

        /* ============ Hot Ranking Sidebar ============ */
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }
        .hot-ranking {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-card);
            position: sticky;
            top: 88px;
        }
        .hot-ranking h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hot-ranking h3 .fire-icon {
            font-size: 1.3rem;
        }
        .rank-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .rank-list-item:last-child { border-bottom: none; }
        .rank-list-item:hover { padding-left: 6px; }
        .rank-list-item:hover .rank-title { color: var(--accent-cyan); }
        .rank-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            color: #fff;
            background: var(--bg-panel);
        }
        .rank-list-item:nth-child(1) .rank-num { background: linear-gradient(135deg, #ff6d00, #ffab40); box-shadow: 0 0 14px rgba(255,109,0,0.4); }
        .rank-list-item:nth-child(2) .rank-num { background: linear-gradient(135deg, #78909c, #b0bec5); box-shadow: 0 0 12px rgba(120,144,156,0.35); }
        .rank-list-item:nth-child(3) .rank-num { background: linear-gradient(135deg, #8d6e63, #bcaaa4); box-shadow: 0 0 10px rgba(141,110,99,0.3); }
        .rank-info { flex: 1; min-width: 0; }
        .rank-title {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .rank-views {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 3px;
        }

        /* ============ FAQ Section ============ */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }
        .faq-section .section-header { justify-content: center; }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover { border-color: var(--border-glow); }
        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: #fff;
            font-size: 1rem;
            gap: 16px;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-question:hover { background: rgba(255,255,255,0.02); }
        .faq-icon {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(0,229,255,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--accent-cyan);
            transition: transform var(--transition-smooth);
        }
        .faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(0,229,255,0.25); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 250px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* ============ CTA Section ============ */
        .cta-section {
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,229,255,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-inner p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 28px;
            font-size: 1rem;
            font-weight: 600;
            color: #000;
            background: var(--gradient-btn);
            box-shadow: 0 6px 28px rgba(0, 229, 255, 0.3);
            transition: all var(--transition-smooth);
            letter-spacing: 0.02em;
            cursor: pointer;
            border: none;
        }
        .btn-primary:hover {
            background: var(--gradient-btn-hover);
            box-shadow: 0 10px 36px rgba(0, 229, 255, 0.45);
            transform: translateY(-3px);
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 0;
            text-align: center;
        }
        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .footer-brand {
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
        }
        .footer-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover { color: var(--accent-cyan); }
        .footer-copy {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ============ Pagination ============ */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
        }
        .pagination .page-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            cursor: pointer;
            transition: all var(--transition-smooth);
        }
        .pagination .page-btn:hover { border-color: var(--border-glow); color: #fff; }
        .pagination .page-btn.active { background: rgba(0,229,255,0.15); border-color: var(--accent-cyan); color: var(--accent-cyan); }
        .pagination .page-btn.arrow { font-size: 1.1rem; }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .articles-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .content-layout { grid-template-columns: 1fr; }
            .hot-ranking { position: static; order: -1; }
            .banner-content h1 { font-size: 2.2rem; }
            .banner-stats { gap: 24px; }
            .banner-stat .stat-num { font-size: 1.6rem; }
        }

        @media (max-width: 768px) {
            .container { padding: 0 16px; }
            .header-inner { height: 56px; }
            .nav-list { display: none; }
            .mobile-menu-btn { display: flex; }
            .category-banner { padding: 48px 0 40px; margin-top: 56px; }
            .banner-content h1 { font-size: 1.7rem; }
            .banner-subtitle { font-size: 0.95rem; }
            .articles-grid { grid-template-columns: 1fr; gap: 16px; }
            .banner-stats { gap: 16px; }
            .banner-stat .stat-num { font-size: 1.4rem; }
            .section-header h2 { font-size: 1.3rem; }
            .filter-scroll { gap: 8px; }
            .filter-tag { padding: 7px 14px; font-size: 0.82rem; }
            .cta-inner h2 { font-size: 1.5rem; }
            .pagination .page-btn { width: 34px; height: 34px; font-size: 0.82rem; }
            .footer-inner { gap: 16px; flex-direction: column; }
        }

        @media (max-width: 520px) {
            .banner-content h1 { font-size: 1.4rem; }
            .banner-stats { flex-direction: column; gap: 10px; align-items: center; }
            .section-header { flex-direction: column; align-items: flex-start; }
            .sort-options { width: 100%; overflow-x: auto; padding-bottom: 4px; }
            .filter-scroll { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 8px; justify-content: flex-start; -webkit-overflow-scrolling: touch; }
            .filter-scroll::-webkit-scrollbar { display: none; }
            .faq-question { font-size: 0.9rem; padding: 14px 16px; }
            .faq-answer-inner { padding: 0 16px 14px; font-size: 0.85rem; }
        }

        /* ============ Mobile Nav Drawer ============ */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.7);
            z-index: 999;
            backdrop-filter: blur(4px);
        }
        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 280px;
            height: 100vh;
            background: var(--bg-panel);
            z-index: 1001;
            padding: 80px 24px 24px;
            border-left: 1px solid var(--border-subtle);
            transform: translateX(100%);
            transition: transform var(--transition-smooth);
        }
        .mobile-nav-drawer.open { transform: translateX(0); }
        .mobile-nav-drawer a {
            display: block;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            margin-bottom: 4px;
        }
        .mobile-nav-drawer a:hover { background: rgba(255,255,255,0.04); }
        .mobile-nav-drawer a.active { color: var(--accent-cyan); background: rgba(0,229,255,0.08); }

        @media (max-width: 768px) {
            .mobile-nav-overlay.active { display: block; }
            .mobile-nav-drawer.active { display: block; }
        }