/* roulang page: index */
:root {
            --bg-deep: #08080f;
            --bg-panel: #111118;
            --bg-card: #161621;
            --bg-elevated: #1b1b28;
            --border-subtle: #252538;
            --border-active: #3a3a55;
            --text-primary: #e6e6f0;
            --text-secondary: #b0b0c4;
            --text-muted: #7878a0;
            --accent-gold: #e8b830;
            --accent-gold-hover: #f5cc40;
            --accent-red: #d43535;
            --accent-red-glow: #f04444;
            --accent-green: #2ecc71;
            --accent-blue: #4a90d9;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.35), 0 0 1px rgba(255,255,255,0.04);
            --shadow-elevated: 0 8px 32px rgba(0,0,0,0.5), 0 0 1px rgba(255,255,255,0.06);
            --shadow-gold: 0 0 20px rgba(232,184,48,0.25);
            --shadow-red: 0 0 16px rgba(212,53,53,0.3);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1240px;
            --nav-height: 70px;
        }

        *, *::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-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            font-size: 16px;
            letter-spacing: 0.01em;
        }

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

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

        button, input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            cursor: pointer;
        }

        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        ul, ol {
            list-style: none;
        }

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

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10,10,18,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--nav-height);
            transition: background var(--transition-smooth), border-color var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(8,8,15,0.96);
            border-bottom-color: var(--border-active);
            box-shadow: 0 2px 20px rgba(0,0,0,0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--accent-gold);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, #1a1a30 0%, #252545 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            color: var(--accent-gold);
            border: 1px solid var(--border-active);
            position: relative;
            flex-shrink: 0;
        }

        .logo-icon::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 9px;
            height: 9px;
            background: var(--accent-red-glow);
            border-radius: 50%;
            box-shadow: var(--shadow-red);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.55; transform: scale(1.5); }
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.02em;
        }

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

        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(232,184,48,0.08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2.5px;
            background: var(--accent-gold);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #c89420 100%);
            color: #1a1a10;
            transition: all var(--transition-smooth);
            letter-spacing: 0.03em;
            box-shadow: var(--shadow-gold);
        }

        .nav-cta:hover {
            background: linear-gradient(135deg, var(--accent-gold-hover) 0%, #daa830 100%);
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(232,184,48,0.4);
            color: #111108;
        }

        .nav-status-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 11px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            background: rgba(46,204,113,0.12);
            color: var(--accent-green);
            border: 1px solid rgba(46,204,113,0.25);
            letter-spacing: 0.04em;
        }

        .nav-status-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
            z-index: 1001;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--bg-deep);
        }

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

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: center;
            filter: brightness(0.35) saturate(0.7);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8,8,15,0.5) 0%, rgba(8,8,15,0.75) 40%, rgba(8,8,15,0.95) 100%);
            z-index: 1;
        }

        .hero-scanline {
            position: absolute;
            inset: 0;
            z-index: 2;
            background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            padding: 80px 0 60px;
        }

        .hero-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            background: rgba(212,53,53,0.15);
            color: var(--accent-red-glow);
            border: 1px solid rgba(212,53,53,0.3);
        }

        .hero-tag .tag-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-red-glow);
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        .hero-tag.new {
            background: rgba(46,204,113,0.12);
            color: var(--accent-green);
            border-color: rgba(46,204,113,0.25);
        }

        .hero-tag.new .tag-dot {
            background: var(--accent-green);
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: 0.04em;
            color: #ffffff;
            margin-bottom: 18px;
            max-width: 700px;
        }

        .hero-title .highlight {
            color: var(--accent-gold);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 32px;
            letter-spacing: 0.02em;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.03em;
            transition: all var(--transition-smooth);
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #c08a18 100%);
            color: #151510;
            box-shadow: var(--shadow-gold);
            border: none;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--accent-gold-hover) 0%, #d4a028 100%);
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(232,184,48,0.5);
            color: #0d0d08;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--border-active);
        }

        .btn-outline:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(232,184,48,0.06);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        /* Section Common */
        .section {
            padding: 72px 0;
        }

        .section-dark {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--accent-gold);
            text-transform: uppercase;
            margin-bottom: 10px;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(232,184,48,0.08);
            border: 1px solid rgba(232,184,48,0.2);
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 0.03em;
            color: #ffffff;
            margin-bottom: 10px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Feature Cards */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            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;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

        .feature-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-elevated);
            transform: translateY(-4px);
        }

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(232,184,48,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            border: 1px solid rgba(232,184,48,0.2);
            color: var(--accent-gold);
        }

        .feature-card h3 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #ffffff;
            letter-spacing: 0.03em;
        }

        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Category Cards */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: block;
        }

        .category-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-elevated);
            transform: translateY(-5px);
        }

        .category-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            overflow: hidden;
            position: relative;
        }

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

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

        .category-card-img .overlay-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(0,0,0,0.7);
            color: var(--accent-gold);
            border: 1px solid rgba(232,184,48,0.35);
            letter-spacing: 0.04em;
        }

        .category-card-body {
            padding: 20px 22px;
        }

        .category-card-body h3 {
            font-family: var(--font-heading);
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: #ffffff;
            letter-spacing: 0.03em;
        }

        .category-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .category-card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 10px;
            font-size: 0.78rem;
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* News List */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .news-item {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            transition: all var(--transition-fast);
            align-items: flex-start;
        }

        .news-item:hover {
            border-color: var(--border-active);
            background: var(--bg-elevated);
            box-shadow: var(--shadow-card);
        }

        .news-item-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-panel);
        }

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

        .news-item-info {
            flex: 1;
            min-width: 0;
        }

        .news-item-info .news-cat {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .news-item-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            letter-spacing: 0.02em;
        }

        .news-item-info .news-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .news-empty {
            text-align: center;
            padding: 40px;
            color: var(--text-muted);
            font-size: 0.95rem;
            grid-column: 1 / -1;
        }

        /* Stats Section */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition-fast);
        }

        .stat-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-card);
        }

        .stat-number {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--accent-gold);
            letter-spacing: 0.03em;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        /* Hot Cards */
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .hot-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .hot-card:hover {
            border-color: var(--border-active);
            box-shadow: var(--shadow-elevated);
            transform: translateY(-4px);
        }

        .hot-card-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            z-index: 2;
            padding: 4px 10px;
            border-radius: 14px;
            font-size: 0.72rem;
            font-weight: 700;
            background: var(--accent-red);
            color: #fff;
            letter-spacing: 0.04em;
            box-shadow: var(--shadow-red);
        }

        .hot-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

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

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

        .hot-card-body {
            padding: 18px 20px;
        }

        .hot-card-body h3 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .hot-card-body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .hot-card-body .hot-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 10px;
            font-size: 0.78rem;
            color: var(--text-secondary);
        }

        .hot-meta .rating {
            color: var(--accent-gold);
            font-weight: 700;
        }

        /* 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-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: #ffffff;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            letter-spacing: 0.02em;
            user-select: none;
        }

        .faq-question .faq-arrow {
            transition: transform var(--transition-fast);
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-shrink: 0;
            margin-left: 12px;
        }

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

        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

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

        /* CTA Section */
        .cta-section {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            text-align: center;
            padding: 64px 0;
        }

        .cta-section .section-title {
            margin-bottom: 6px;
        }

        .cta-section .section-desc {
            margin-bottom: 28px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 40px 0;
        }

        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            letter-spacing: 0.03em;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

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

        .footer-copy {
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.02em;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .features-grid,
            .category-grid,
            .hot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 2.5rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .main-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(14,14,22,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 90px 30px 30px;
                gap: 4px;
                transition: right var(--transition-smooth);
                border-left: 1px solid var(--border-subtle);
                z-index: 1000;
            }
            .main-nav.open {
                right: 0;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .features-grid,
            .category-grid,
            .hot-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item-thumb {
                width: 100%;
                height: 140px;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .hero-content {
                padding: 50px 0 40px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 14px 26px;
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .container {
                padding: 0 16px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .nav-status-badge {
                display: none;
            }
        }

/* roulang page: article */
:root {
            --primary: #E63946;
            --primary-dark: #B71C2C;
            --accent: #FFB703;
            --bg-dark: #0A0E17;
            --bg-surface: #141A26;
            --bg-card: #1A2030;
            --text-primary: #FFFFFF;
            --text-secondary: #B0B8C5;
            --text-muted: #6E7583;
            --border: rgba(255,255,255,0.08);
            --border-strong: rgba(255,255,255,0.15);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 14px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow: 0 6px 20px rgba(0,0,0,0.4);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
            --transition: 0.2s ease;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --header-height: 70px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            overflow: hidden;
            clip: rect(0 0 0 0);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(10,14,23,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #fff;
            font-size: 1.2rem;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition);
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--text-primary);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .nav-status-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--accent);
            background: rgba(255,183,3,0.1);
            padding: 6px 12px;
            border-radius: 20px;
            border: 1px solid rgba(255,183,3,0.25);
            white-space: nowrap;
        }

        .nav-status-badge .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.6); }
        }

        .nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 10px 22px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background var(--transition), box-shadow var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(230,57,70,0.4);
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(230,57,70,0.55);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            padding: 10px;
            cursor: pointer;
        }

        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--text-primary);
            margin: 6px 0;
            border-radius: 2px;
            transition: 0.3s;
        }

        /* Article Hero */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-color: var(--bg-surface);
            box-shadow: inset 0 0 100px rgba(0,0,0,0.7);
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,14,23,0.7) 0%, rgba(10,14,23,0.92) 100%);
        }

        .hero-content {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .article-category-tag {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .article-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 16px;
            color: #fff;
            text-shadow: 0 2px 12px rgba(0,0,0,0.5);
        }

        .article-meta {
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        /* Article Body */
        .article-container {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px;
            margin-top: -30px;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        .article-content p {
            margin-bottom: 1.4em;
        }

        .article-content h2 {
            font-size: 1.6rem;
            color: var(--text-primary);
            margin-top: 2em;
            margin-bottom: 0.6em;
            font-weight: 700;
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 2em 0;
        }

        .not-found {
            text-align: center;
            padding: 80px 0;
        }

        .not-found h2 {
            font-size: 2rem;
            margin-bottom: 16px;
        }

        .back-home {
            display: inline-block;
            margin-top: 24px;
            padding: 12px 32px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius);
            font-weight: 600;
        }

        /* Related Section */
        .related-posts {
            padding: 70px 0;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-title span {
            background: var(--primary);
            width: 4px;
            height: 28px;
            border-radius: 2px;
        }

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

        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .guide-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .guide-card-body {
            padding: 20px 24px 24px;
        }

        .guide-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .guide-card-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: 0 0 16px;
        }

        .card-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-surface) 0%, #111827 100%);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            margin-bottom: 60px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(230,57,70,0.15) 0%, transparent 70%);
            top: -100px;
            right: -100px;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 32px;
            position: relative;
            z-index: 2;
        }

        .btn-glow {
            background: var(--primary);
            border: none;
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            cursor: pointer;
            box-shadow: 0 0 20px rgba(230,57,70,0.5);
            transition: all var(--transition);
            position: relative;
            z-index: 2;
            display: inline-block;
        }

        .btn-glow:hover {
            background: var(--primary-dark);
            box-shadow: 0 0 30px rgba(230,57,70,0.7);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding: 40px 0 30px;
            text-align: center;
        }

        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
        }

        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

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

        .footer-copy {
            color: var(--text-muted);
            font-size: 0.8rem;
            margin-top: 8px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-hero h1 {
                font-size: 2.2rem;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--bg-dark);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 32px;
                transform: translateX(100%);
                transition: transform 0.3s ease;
                z-index: 999;
                backdrop-filter: blur(12px);
            }

            .main-nav.open {
                transform: translateX(0);
            }

            .mobile-toggle {
                display: block;
            }

            .article-container {
                padding: 24px;
                margin-top: -20px;
            }

            .article-hero h1 {
                font-size: 1.8rem;
            }

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

            .cta-section {
                padding: 40px 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 1.3rem;
            }
            .footer-links {
                gap: 12px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #f5f6f8;
            --bg-white: #ffffff;
            --bg-dark: #111820;
            --bg-dark-panel: #161d28;
            --bg-darker: #0d1117;
            --text-primary: #1a1d23;
            --text-secondary: #4a5058;
            --text-muted: #7a8089;
            --text-light: #9ca3af;
            --text-on-dark: #e0e3e8;
            --text-on-dark-muted: #9aa0ab;
            --accent-red: #e63946;
            --accent-red-hover: #cf2f3c;
            --accent-orange: #f0592b;
            --accent-green: #22c55e;
            --accent-gold: #e8a817;
            --accent-blue: #3b82f6;
            --border-color: #e2e5ea;
            --border-light: #eef0f3;
            --border-dark: #2a303c;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);
            --shadow-card: 0 2px 8px rgba(0,0,0,0.05), 0 4px 20px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 6px 24px rgba(0,0,0,0.10), 0 12px 36px rgba(0,0,0,0.08);
            --radius-xs: 4px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1260px;
            --nav-height: 64px;
        }

        *, *::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-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-sm);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .header-logo {
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .header-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent-red);
            border-radius: var(--radius-xs);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            letter-spacing: -0.03em;
            flex-shrink: 0;
        }

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

        .main-nav .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .main-nav .nav-link:hover {
            color: var(--text-primary);
            background: var(--bg-primary);
        }

        .main-nav .nav-link.active {
            color: var(--accent-red);
            background: #fef2f3;
        }

        .main-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent-red);
            border-radius: 3px 3px 0 0;
        }

        .nav-status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-red);
            background: #fef2f3;
            border: 1px solid #fecdd3;
            white-space: nowrap;
        }

        .nav-status-badge .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-red);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.6); }
        }

        .nav-cta {
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.88rem;
            color: #fff !important;
            background: var(--accent-red);
            transition: all var(--transition-normal);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(230,57,70,0.3);
            margin-left: 6px;
        }

        .nav-cta:hover {
            background: var(--accent-red-hover);
            box-shadow: 0 4px 16px rgba(230,57,70,0.45);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text-primary);
            background: var(--bg-primary);
            transition: all var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            background: var(--border-color);
        }

        /* ========== CATEGORY HERO ========== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #111820 0%, #1a2433 30%, #0f1923 60%, #111820 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 72px 0 64px;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(17,24,32,0.88) 0%, rgba(17,24,32,0.78) 100%);
            z-index: 1;
        }

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

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

        .category-hero-breadcrumb a {
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
        }

        .category-hero-breadcrumb a:hover {
            color: #fff;
        }

        .category-hero-breadcrumb .sep {
            color: #4a5568;
        }

        .category-hero-breadcrumb .current {
            color: var(--accent-red);
            font-weight: 600;
        }

        .category-hero-content {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero-info h1 {
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.2;
        }

        .category-hero-info .subtitle {
            font-size: 1.05rem;
            color: var(--text-on-dark-muted);
            max-width: 520px;
            line-height: 1.5;
        }

        .category-hero-stats {
            display: flex;
            gap: 28px;
            flex-shrink: 0;
        }

        .cat-stat-item {
            text-align: center;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-md);
            padding: 16px 22px;
            min-width: 90px;
            backdrop-filter: blur(4px);
        }

        .cat-stat-item .stat-num {
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 4px;
        }

        .cat-stat-item .stat-label {
            font-size: 0.78rem;
            color: var(--text-on-dark-muted);
            font-weight: 500;
        }

        .cat-stat-item.highlight {
            border-color: var(--accent-red);
            background: rgba(230,57,70,0.1);
        }

        .cat-stat-item.highlight .stat-num {
            color: var(--accent-red);
        }

        /* ========== FILTER BAR ========== */
        .filter-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
            position: sticky;
            top: var(--nav-height);
            z-index: 500;
        }

        .filter-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-tabs {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 7px 18px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            cursor: pointer;
        }

        .filter-tab:hover {
            color: var(--text-primary);
            background: var(--bg-primary);
        }

        .filter-tab.active {
            color: #fff;
            background: var(--accent-red);
            border-color: var(--accent-red);
            box-shadow: 0 2px 8px rgba(230,57,70,0.3);
        }

        .filter-search {
            display: flex;
            align-items: center;
            gap: 0;
            background: var(--bg-primary);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .filter-search:focus-within {
            border-color: var(--accent-red);
            box-shadow: 0 0 0 3px rgba(230,57,70,0.08);
        }

        .filter-search input {
            border: none;
            background: transparent;
            padding: 10px 16px;
            font-size: 0.9rem;
            color: var(--text-primary);
            width: 200px;
        }

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

        .filter-search button {
            padding: 10px 16px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
            font-size: 1rem;
        }

        .filter-search button:hover {
            color: var(--accent-red);
        }

        /* ========== MAIN CONTENT AREA ========== */
        .category-main {
            padding: 48px 0 64px;
            flex: 1;
        }

        .category-main .container {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        /* ========== ARTICLE GRID ========== */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

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

        .article-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #dde0e5;
        }

        .article-card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #e8ebf0;
        }

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

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

        .article-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            z-index: 2;
        }

        .badge-hot {
            background: var(--accent-red);
            color: #fff;
        }

        .badge-new {
            background: var(--accent-blue);
            color: #fff;
        }

        .badge-top {
            background: var(--accent-gold);
            color: #1a1d23;
        }

        .badge-guide {
            background: #10b981;
            color: #fff;
        }

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

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

        .article-tag {
            font-size: 0.73rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            background: #f0f2f5;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .article-tag:hover {
            background: #e2e5ea;
            color: var(--text-primary);
        }

        .article-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            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-title {
            color: var(--accent-red);
        }

        .article-card-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-light);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        .article-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== SIDEBAR ========== */
        .category-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: calc(var(--nav-height) + 56px);
        }

        .sidebar-panel {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-panel h3 {
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.01em;
        }

        .sidebar-panel h3 .icon-dot {
            width: 8px;
            height: 8px;
            border-radius: 2px;
            background: var(--accent-red);
            flex-shrink: 0;
        }

        .hot-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

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

        .hot-list-item:hover {
            padding-left: 4px;
        }

        .hot-rank {
            width: 26px;
            height: 26px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 0.82rem;
            flex-shrink: 0;
            color: #fff;
        }

        .hot-rank.r1 { background: var(--accent-red); }
        .hot-rank.r2 { background: var(--accent-orange); }
        .hot-rank.r3 { background: var(--accent-gold); }
        .hot-rank.rn { background: #b0b8c1; color: #fff; }

        .hot-list-info {
            flex: 1;
            min-width: 0;
        }

        .hot-list-info a {
            font-size: 0.88rem;
            font-weight: 600;
            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);
        }

        .hot-list-info a:hover {
            color: var(--accent-red);
        }

        .hot-list-info .hot-meta {
            font-size: 0.73rem;
            color: var(--text-light);
            margin-top: 3px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud .cloud-tag {
            padding: 6px 14px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-secondary);
            background: #f5f6f8;
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .tag-cloud .cloud-tag:hover {
            color: var(--accent-red);
            border-color: #fecdd3;
            background: #fef2f3;
        }

        /* ========== TIPS SECTION ========== */
        .tips-section {
            padding: 56px 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
        }

        .tips-section .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .tips-section .section-header h2 {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .tips-section .section-header p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

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

        .tip-card {
            background: var(--bg-primary);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .tip-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--accent-red);
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .tip-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #dde0e5;
        }

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

        .tip-card .tip-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            background: #fff;
            color: var(--accent-red);
            box-shadow: var(--shadow-sm);
        }

        .tip-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .tip-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== CTA SECTION ========== */
        .cta-section-dark {
            background: var(--bg-dark);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section-dark::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(230,57,70,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section-dark .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-section-dark h2 {
            font-size: 2rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .cta-section-dark p {
            color: var(--text-on-dark-muted);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-lg {
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            background: var(--accent-red);
            transition: all var(--transition-normal);
            box-shadow: 0 4px 18px rgba(230,57,70,0.4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-lg:hover {
            background: var(--accent-red-hover);
            box-shadow: 0 6px 24px rgba(230,57,70,0.55);
            transform: translateY(-2px);
        }

        .btn-outline-lg {
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            background: transparent;
            border: 2px solid rgba(255,255,255,0.25);
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-lg:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.06);
            transform: translateY(-2px);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 56px 0 64px;
            background: var(--bg-primary);
        }

        .faq-section .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .faq-section .section-header h2 {
            font-size: 1.8rem;
            font-weight: 900;
            letter-spacing: -0.02em;
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-item summary {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-primary);
            list-style: none;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-arrow {
            transition: transform var(--transition-normal);
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .faq-item[open] summary .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-red);
        }

        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== PAGINATION ========== */
        .pagination-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding-top: 40px;
        }

        .pagination-bar .page-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-secondary);
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            transition: all var(--transition-fast);
        }

        .pagination-bar .page-btn:hover {
            border-color: var(--accent-red);
            color: var(--accent-red);
        }

        .pagination-bar .page-btn.active {
            background: var(--accent-red);
            color: #fff;
            border-color: var(--accent-red);
            box-shadow: 0 2px 8px rgba(230,57,70,0.3);
        }

        .pagination-bar .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-darker);
            padding: 48px 0 28px;
            color: var(--text-on-dark-muted);
            margin-top: auto;
        }

        .footer-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
            text-align: center;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-links a {
            color: var(--text-on-dark-muted);
            font-size: 0.9rem;
            font-weight: 500;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-copy {
            font-size: 0.8rem;
            color: #5a606b;
            padding-top: 16px;
            border-top: 1px solid rgba(255,255,255,0.08);
            width: 100%;
            max-width: 500px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .category-main .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .category-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 16px;
            }
            .sidebar-panel {
                flex: 1;
                min-width: 260px;
            }
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero-info h1 {
                font-size: 2rem;
            }
            .category-hero-stats {
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .nav-cta {
                margin-left: 0;
                text-align: center;
                width: 100%;
                justify-content: center;
            }
            .nav-status-badge {
                align-self: center;
            }
            .articles-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .category-hero {
                padding: 48px 0 40px;
            }
            .category-hero-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .category-hero-info h1 {
                font-size: 1.6rem;
            }
            .category-hero-stats {
                gap: 10px;
                flex-wrap: wrap;
            }
            .cat-stat-item {
                padding: 12px 16px;
                min-width: 70px;
            }
            .cat-stat-item .stat-num {
                font-size: 1.3rem;
            }
            .filter-bar .container {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-search input {
                width: 100%;
            }
            .filter-search {
                width: 100%;
            }
            .category-sidebar {
                flex-direction: column;
            }
            .sidebar-panel {
                min-width: unset;
            }
            .pagination-bar {
                flex-wrap: wrap;
            }
            .cta-section-dark h2 {
                font-size: 1.5rem;
            }
            .faq-section .section-header h2,
            .tips-section .section-header h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero-info h1 {
                font-size: 1.35rem;
            }
            .category-hero-info .subtitle {
                font-size: 0.9rem;
            }
            .cat-stat-item {
                padding: 10px 12px;
                min-width: 60px;
            }
            .cat-stat-item .stat-num {
                font-size: 1.1rem;
            }
            .article-card-body {
                padding: 14px 16px 16px;
            }
            .article-card-title {
                font-size: 0.95rem;
            }
            .filter-tab {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                padding: 12px 22px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .cta-btn-group {
                flex-direction: column;
            }
            .footer-links {
                gap: 14px;
            }
        }