/* roulang page: index */
:root {
            --primary: #dc2626;
            --primary-dark: #b91c1c;
            --primary-light: #fef2f2;
            --secondary: #1e293b;
            --accent: #f59e0b;
            --bg-body: #ffffff;
            --bg-alt: #f8fafc;
            --bg-dark: #0f172a;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --radius: 1rem;
            --radius-sm: 0.5rem;
            --radius-lg: 1.5rem;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

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

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

        button, input, textarea {
            font-family: inherit;
            transition: var(--transition);
        }

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

        /* ===== Header / Nav ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 1.5rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.25rem;
            font-weight: 900;
            transform: rotate(-4deg);
            transition: var(--transition);
        }

        .logo:hover .logo-icon {
            transform: rotate(0deg);
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
        }

        .nav-links a {
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 99px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 99px;
            padding: 0.375rem 0.375rem 0.375rem 1rem;
            border: 1px solid transparent;
            transition: var(--transition);
            max-width: 220px;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: white;
            box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.08);
        }

        .search-box input {
            border: none;
            background: transparent;
            padding: 0.375rem 0;
            font-size: 0.875rem;
            color: var(--text-primary);
            width: 100%;
            outline: none;
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .search-box button {
            background: var(--primary);
            color: white;
            border: none;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 0.8rem;
            transition: var(--transition);
        }

        .search-box button:hover {
            background: var(--primary-dark);
            transform: scale(1.05);
        }

        .btn-header {
            padding: 0.5rem 1.25rem;
            border-radius: 99px;
            font-size: 0.875rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-header.primary {
            background: var(--primary);
            color: white;
        }

        .btn-header.primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(220, 38, 38, 0.3);
        }

        .btn-header.outline {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .btn-header.outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        /* Mobile toggle */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 0.25rem;
            border-radius: 8px;
        }

        .mobile-toggle:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .hero {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            min-height: 80vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(220, 38, 38, 0.15) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 30%, rgba(245, 158, 11, 0.08) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
            padding: 6rem 0 4rem;
            position: relative;
            z-index: 2;
        }

        .hero-content h1 {
            font-size: 3.5rem;
            font-weight: 900;
            line-height: 1.1;
            color: white;
            letter-spacing: -1.5px;
            margin-bottom: 1.5rem;
        }

        .hero-content h1 .highlight {
            background: linear-gradient(135deg, #dc2626, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 520px;
            margin-bottom: 2.5rem;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn-hero {
            padding: 0.875rem 2.25rem;
            border-radius: 99px;
            font-size: 1rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-hero.primary {
            background: var(--primary);
            color: white;
            box-shadow: 0 8px 32px rgba(220, 38, 38, 0.3);
        }

        .btn-hero.primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(220, 38, 38, 0.4);
        }

        .btn-hero.outline {
            background: transparent;
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.25);
        }

        .btn-hero.outline:hover {
            border-color: white;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .hero-image {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-image-placeholder {
            width: 100%;
            aspect-ratio: 4/3;
            background: linear-gradient(145deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,0.08);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.15);
            font-size: 4rem;
            backdrop-filter: blur(4px);
            overflow: hidden;
        }

        .hero-image-placeholder .icon-bg {
            font-size: 6rem;
            opacity: 0.3;
        }

        .hero-image-placeholder .label {
            font-size: 0.9rem;
            margin-top: 1rem;
            opacity: 0.5;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.08);
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-item .number {
            font-size: 2rem;
            font-weight: 800;
            color: white;
            line-height: 1.2;
        }

        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            margin-top: 0.25rem;
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 5rem 0;
        }

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

        .section-dark {
            background: var(--bg-dark);
            color: white;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3.5rem;
        }

        .section-header h2 {
            font-size: 2.25rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 0.75rem;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-header.light p {
            color: rgba(255,255,255,0.6);
        }

        .section-header .badge {
            display: inline-block;
            padding: 0.25rem 1rem;
            border-radius: 99px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 0.75rem;
        }

        .section-header.light .badge {
            background: rgba(255,255,255,0.1);
            color: rgba(255,255,255,0.9);
        }

        /* ===== Cards ===== */
        .card {
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 1.75rem;
            transition: var(--transition);
            height: 100%;
        }

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

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: white;
            margin-bottom: 1.25rem;
            background: var(--primary);
        }

        .card-icon.gold {
            background: var(--accent);
        }

        .card-icon.teal {
            background: #0d9488;
        }

        .card-icon.indigo {
            background: #6366f1;
        }

        .card-icon.emerald {
            background: #10b981;
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .card .tag {
            display: inline-block;
            padding: 0.2rem 0.75rem;
            border-radius: 99px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            margin-top: 0.75rem;
        }

        .card .tag.gold {
            background: #fef3c7;
            color: #d97706;
        }

        .card .tag.green {
            background: #d1fae5;
            color: #059669;
        }

        /* ===== 资讯列表 ===== */
        .post-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .post-card {
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 1.5rem;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .post-card .meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 0.75rem;
        }

        .post-card .meta .cat {
            background: var(--primary-light);
            color: var(--primary);
            padding: 0.15rem 0.6rem;
            border-radius: 99px;
            font-weight: 600;
            font-size: 0.7rem;
        }

        .post-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .post-card h3 a {
            color: var(--text-primary);
        }

        .post-card h3 a:hover {
            color: var(--primary);
        }

        .post-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .post-card .read-more {
            margin-top: 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .post-card .read-more:hover {
            gap: 0.6rem;
        }

        .empty-posts {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 1rem;
            color: var(--text-light);
            font-size: 1rem;
        }

        .empty-posts i {
            font-size: 2.5rem;
            display: block;
            margin-bottom: 1rem;
            opacity: 0.4;
        }

        /* ===== 分类网格 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .category-card {
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 2rem;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
        }

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

        .category-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: white;
            margin: 0 auto 1.25rem;
        }

        .category-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

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

        .category-card .count {
            display: inline-block;
            margin-top: 1rem;
            font-size: 0.8rem;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ===== 数据/流程 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }

        .stat-item {
            text-align: center;
            padding: 2rem 1rem;
        }

        .stat-item .number {
            font-size: 2.75rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -1px;
        }

        .stat-item .label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 0.5rem;
            font-weight: 500;
        }

        .stat-item .desc {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 0.25rem;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background: white;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 1.25rem 1.5rem;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-item .question {
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-primary);
        }

        .faq-item .question i {
            color: var(--primary);
            font-size: 0.9rem;
            width: 20px;
        }

        .faq-item .answer {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-top: 0.5rem;
            padding-left: 2.75rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
            border-radius: var(--radius-lg);
            padding: 4rem 3rem;
            text-align: center;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 1rem;
            position: relative;
        }

        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 2rem;
            position: relative;
        }

        .btn-cta {
            padding: 1rem 2.5rem;
            border-radius: 99px;
            font-size: 1.05rem;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: white;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            position: relative;
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.25);
            background: #f8fafc;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 4rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 3rem;
            padding-bottom: 3rem;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .footer-brand .logo {
            margin-bottom: 1rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            color: white;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-col ul a {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            transition: var(--transition);
        }

        .footer-col ul a:hover {
            color: white;
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .footer-bottom a {
            color: rgba(255,255,255,0.5);
        }

        .footer-bottom a:hover {
            color: white;
        }

        .footer-social {
            display: flex;
            gap: 0.75rem;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.5);
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
                text-align: center;
            }

            .hero-content p {
                margin: 0 auto 2rem;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-stats {
                max-width: 480px;
                margin-left: auto;
                margin-right: auto;
            }

            .hero-image {
                max-width: 500px;
                margin: 0 auto;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }

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

            .post-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 1rem 1.5rem;
                box-shadow: 0 20px 40px rgba(0,0,0,0.1);
                border-bottom: 1px solid var(--border);
                gap: 0.25rem;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 0.75rem 1rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav-links a.active::after {
                display: none;
            }

            .mobile-toggle {
                display: block;
            }

            .search-box {
                max-width: 160px;
            }

            .btn-header.outline {
                display: none;
            }

            .hero-content h1 {
                font-size: 2.25rem;
            }

            .hero-content p {
                font-size: 1rem;
            }

            .hero {
                min-height: auto;
            }

            .hero-grid {
                padding: 3rem 0 2rem;
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 1rem;
                margin-top: 2rem;
                padding-top: 1.5rem;
            }

            .hero-stat-item .number {
                font-size: 1.5rem;
            }

            .section {
                padding: 3rem 0;
            }

            .section-header h2 {
                font-size: 1.75rem;
            }

            .category-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

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

            .stat-item .number {
                font-size: 2rem;
            }

            .cta-section {
                padding: 3rem 1.5rem;
                border-radius: var(--radius);
            }

            .cta-section h2 {
                font-size: 1.75rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }

            .hero-content h1 {
                font-size: 1.75rem;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .btn-hero {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 0.75rem;
            }

            .hero-stat-item .number {
                font-size: 1.25rem;
            }

            .header-actions .search-box {
                max-width: 120px;
            }

            .header-actions .btn-header.primary {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }

            .stat-item {
                padding: 1rem 0.5rem;
            }

            .post-card {
                padding: 1.25rem;
            }

            .faq-item {
                padding: 1rem 1.25rem;
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #dc2626;
            --primary-dark: #b91c1c;
            --primary-light: #fef2f2;
            --secondary: #1e293b;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg-body: #ffffff;
            --bg-alt: #f8fafc;
            --bg-dark: #0f172a;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 12px 32px rgba(220, 38, 38, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== Base Reset ===== */
        *,
        *::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);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        .section-padding {
            padding: 80px 0;
        }

        .section-padding-sm {
            padding: 48px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 40px auto;
            text-align: center;
        }

        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 9999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        .badge-red {
            background: var(--primary-light);
            color: var(--primary);
        }

        .badge-yellow {
            background: #fffbeb;
            color: #b45309;
        }

        .badge-blue {
            background: #eff6ff;
            color: #1d4ed8;
        }

        .badge-green {
            background: #f0fdf4;
            color: #15803d;
        }

        .badge-gray {
            background: #f1f5f9;
            color: #475569;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px) saturate(1.6);
            -webkit-backdrop-filter: blur(16px) saturate(1.6);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
        }

        .logo span {
            background: linear-gradient(135deg, var(--primary), #ef4444);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-links li a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-links li a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 999px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-actions .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 9999px;
            padding: 0 16px;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }

        .header-actions .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12);
        }

        .header-actions .search-box input {
            border: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 0.88rem;
            color: var(--text-primary);
            outline: none;
            width: 160px;
        }

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

        .header-actions .search-box i {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(220, 38, 38, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(220, 38, 38, 0.35);
        }

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

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1.5px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 6px 16px;
            font-size: 0.82rem;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px;
            border-radius: var(--radius-sm);
        }

        .menu-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .category-hero {
            padding: 120px 0 64px 0;
            background: linear-gradient(135deg, #fef2f2 0%, #fff7ed 50%, #fef9ef 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(220, 38, 38, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .category-hero h1 .highlight {
            color: var(--primary);
        }

        .category-hero p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 28px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 12px;
        }

        .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stats .stat-item .number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .hero-stats .stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-body);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(220, 38, 38, 0.15);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--bg-alt);
        }

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

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

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .card-meta i {
            margin-right: 4px;
        }

        .card-meta .author {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .card-meta .author img {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            object-fit: cover;
        }

        /* ===== Featured Post ===== */
        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--bg-body);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .featured-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .featured-card .featured-img {
            width: 100%;
            height: 100%;
            min-height: 320px;
            object-fit: cover;
            background: var(--bg-alt);
        }

        .featured-card .featured-body {
            padding: 40px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-card .featured-body .badge {
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .featured-card .featured-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .featured-card .featured-body p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        /* ===== Filter / Tabs ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 36px;
            justify-content: center;
        }

        .filter-bar .filter-btn {
            padding: 8px 20px;
            border-radius: 9999px;
            font-size: 0.88rem;
            font-weight: 500;
            border: 1.5px solid var(--border);
            background: transparent;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition);
        }

        .filter-bar .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .filter-bar .filter-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 12px rgba(220, 38, 38, 0.25);
        }

        /* ===== Grid Layouts ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

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

        /* ===== Ranking / List ===== */
        .rank-list {
            list-style: none;
            counter-reset: rank;
        }

        .rank-list .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            background: var(--bg-body);
            border: 1px solid var(--border);
            transition: all var(--transition);
            margin-bottom: 10px;
            counter-increment: rank;
        }

        .rank-list .rank-item:hover {
            border-color: rgba(220, 38, 38, 0.2);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .rank-list .rank-item .rank-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        .rank-list .rank-item:nth-child(1) .rank-number {
            background: var(--primary);
            color: #fff;
        }

        .rank-list .rank-item:nth-child(2) .rank-number {
            background: #ef4444;
            color: #fff;
        }

        .rank-list .rank-item:nth-child(3) .rank-number {
            background: #f97316;
            color: #fff;
        }

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

        .rank-list .rank-item .rank-info h4 {
            font-size: 0.98rem;
            font-weight: 600;
            margin-bottom: 2px;
        }

        .rank-list .rank-item .rank-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .rank-list .rank-item .rank-value {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 28px;
            padding-left: 20px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }

        .timeline-item .tl-date {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 4px;
        }

        .timeline-item .tl-title {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .timeline-item .tl-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

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

        .faq-item:hover {
            border-color: rgba(220, 38, 38, 0.2);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
            transition: background var(--transition);
        }

        .faq-question:hover {
            background: var(--bg-alt);
        }

        .faq-question i {
            transition: transform var(--transition);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 24px 18px 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

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

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #1e293b 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(220, 38, 38, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px auto;
        }

        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px 0;
            margin-top: 0;
            border-top: none;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .site-footer .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand .logo span {
            background: none;
            -webkit-text-fill-color: #fff;
            color: #fff;
        }

        .site-footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
            color: rgba(255, 255, 255, 0.55);
        }

        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .footer-col ul {
            list-style: none;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }

        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: color var(--transition);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        .site-footer .footer-social {
            display: flex;
            gap: 16px;
        }

        .site-footer .footer-social a {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.4);
            transition: all var(--transition);
        }

        .site-footer .footer-social a:hover {
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-card .featured-img {
                min-height: 240px;
                max-height: 300px;
            }
            .featured-card .featured-body {
                padding: 28px 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }

            .section-padding {
                padding: 48px 0;
            }

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

            .category-hero {
                padding: 100px 0 40px 0;
            }

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

            .category-hero p {
                font-size: 1rem;
            }

            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            /* Navigation Mobile */
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                pointer-events: none;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-links li a {
                padding: 12px 16px;
                width: 100%;
                font-size: 1rem;
            }

            .nav-links li a.active::after {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .header-actions .search-box {
                display: none;
            }

            .header-actions .btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .hero-stats {
                gap: 20px;
            }

            .hero-stats .stat-item .number {
                font-size: 1.3rem;
            }

            .filter-bar {
                gap: 6px;
            }

            .filter-bar .filter-btn {
                padding: 6px 14px;
                font-size: 0.82rem;
            }

            .cta-section {
                padding: 36px 24px;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

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

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .featured-card .featured-body {
                padding: 24px 24px;
            }

            .featured-card .featured-body h2 {
                font-size: 1.3rem;
            }

            .rank-list .rank-item {
                padding: 12px 16px;
            }

            .timeline {
                padding-left: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .grid-4 {
                grid-template-columns: 1fr;
            }

            .category-hero h1 {
                font-size: 1.5rem;
            }

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

            .logo {
                font-size: 1.15rem;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }

            .card-body {
                padding: 16px 18px 20px;
            }

            .card-title {
                font-size: 1.05rem;
            }
        }

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

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade {
            animation: fadeInUp 0.6s ease-out forwards;
        }

        .animate-fade-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-fade-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-fade-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-fade-delay-4 {
            animation-delay: 0.4s;
        }

/* roulang page: category2 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-dark: #0f1a2e;
            --bg-card: #1a2d4a;
            --bg-section: #f8f9fa;
            --text-light: #f1faee;
            --text-muted: #a8b5c8;
            --border-color: #2a3f5e;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 30px 80px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            background-color: #ffffff;
            color: #1a1a2e;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        /* ===== 导航 ===== */
        .site-header {
            background: rgba(15, 26, 46, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0 24px;
        }

        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.35);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 1px;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-links li a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }

        .nav-links li a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-links li a.active {
            color: #ffffff;
            background: var(--primary);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 8px;
            padding: 0 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }

        .search-box:focus-within {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--primary);
        }

        .search-box input {
            background: none;
            border: none;
            outline: none;
            color: #fff;
            padding: 8px 0;
            font-size: 14px;
            width: 140px;
        }

        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .search-box button {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.6);
            cursor: pointer;
            padding: 4px 0 4px 8px;
            font-size: 16px;
            transition: var(--transition);
        }

        .search-box button:hover {
            color: var(--primary);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.45);
        }

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

        .btn-primary-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 10px 24px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            border: 1.5px solid rgba(255, 255, 255, 0.25);
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-primary-outline:hover {
            border-color: var(--primary);
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 28px;
            cursor: pointer;
            padding: 4px;
            line-height: 1;
        }

        /* ===== Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, #0f1a2e 0%, #1a2d4a 50%, #0f1a2e 100%);
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(69, 123, 157, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(230, 57, 70, 0.2);
            color: var(--primary-light);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            border: 1px solid rgba(230, 57, 70, 0.25);
            margin-bottom: 20px;
        }

        .category-hero h1 {
            font-size: 52px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.15;
            margin-bottom: 20px;
            max-width: 700px;
        }

        .category-hero h1 span {
            color: var(--primary);
        }

        .category-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat .num {
            font-size: 32px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
        }

        .hero-stat .num span {
            color: var(--primary);
        }

        .hero-stat .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 4px;
        }

        /* ===== 子分类导航 ===== */
        .subnav-section {
            background: #ffffff;
            padding: 32px 0;
            border-bottom: 1px solid #eef1f5;
            position: sticky;
            top: 72px;
            z-index: 100;
        }

        .subnav-scroll {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            padding-bottom: 4px;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .subnav-scroll::-webkit-scrollbar {
            display: none;
        }

        .subnav-item {
            flex-shrink: 0;
            padding: 10px 24px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: #4a5568;
            background: #f1f4f9;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .subnav-item:hover {
            background: #e8edf4;
            color: #1a1a2e;
        }

        .subnav-item.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.25);
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 80px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: #1a1a2e;
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 16px;
            color: #6b7a8f;
            max-width: 600px;
            line-height: 1.7;
        }

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

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

        .section-header-center .section-subtitle {
            margin: 0 auto;
        }

        .badge-section {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* ===== 卡片网格 ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .guide-card {
            background: #ffffff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid #eef1f5;
            display: flex;
            flex-direction: column;
        }

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

        .guide-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            background: linear-gradient(135deg, #1d3557, #0f1a2e);
        }

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

        .guide-card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            color: #fff;
            background: var(--secondary);
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .guide-card-tag.green {
            background: #2d6a4f;
        }

        .guide-card-tag.orange {
            background: #e67e22;
        }

        .guide-card-tag.purple {
            background: #6c5ce7;
        }

        .guide-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #1a1a2e;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .guide-card p {
            font-size: 14px;
            color: #6b7a8f;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .guide-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            border-top: 1px solid #eef1f5;
            margin-top: auto;
        }

        .guide-card-footer .author {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #6b7a8f;
        }

        .guide-card-footer .author img {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #1d3557;
        }

        .guide-card-footer .read-time {
            font-size: 13px;
            color: #a0aec0;
        }

        .guide-card-footer .read-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
        }

        .guide-card-footer .read-link:hover {
            color: var(--primary-dark);
            gap: 4px;
        }

        /* ===== 训练方法板块 ===== */
        .methods-section {
            background: #f8f9fa;
        }

        .method-item {
            display: flex;
            gap: 20px;
            padding: 24px;
            background: #ffffff;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef1f5;
            transition: var(--transition);
        }

        .method-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        .method-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #fff;
            flex-shrink: 0;
        }

        .method-icon.red {
            background: linear-gradient(135deg, #e63946, #c1121f);
        }

        .method-icon.blue {
            background: linear-gradient(135deg, #457b9d, #1d3557);
        }

        .method-icon.green {
            background: linear-gradient(135deg, #2d6a4f, #1b4332);
        }

        .method-icon.orange {
            background: linear-gradient(135deg, #f4a261, #e67e22);
        }

        .method-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: #1a1a2e;
            margin-bottom: 6px;
        }

        .method-content p {
            font-size: 14px;
            color: #6b7a8f;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 运动科学板块 ===== */
        .science-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .science-card {
            background: #ffffff;
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow);
            border: 1px solid #eef1f5;
            transition: var(--transition);
        }

        .science-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .science-card .icon {
            font-size: 36px;
            margin-bottom: 16px;
            display: block;
        }

        .science-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: #1a1a2e;
            margin-bottom: 10px;
        }

        .science-card p {
            font-size: 14px;
            color: #6b7a8f;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .science-card .learn-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .science-card .learn-more:hover {
            gap: 10px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #ffffff;
        }

        .faq-item {
            border-bottom: 1px solid #eef1f5;
            padding: 20px 0;
        }

        .faq-item:first-child {
            padding-top: 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: #1a1a2e;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            padding: 4px 0;
            gap: 16px;
        }

        .faq-question .icon {
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-question.active .icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 0 0 0;
            font-size: 15px;
            color: #6b7a8f;
            line-height: 1.7;
        }

        .faq-answer.open {
            max-height: 300px;
            padding: 12px 0 4px 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f1a2e 0%, #1a2d4a 100%);
            padding: 80px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .cta-buttons .btn-primary {
            padding: 14px 36px;
            font-size: 16px;
        }

        .cta-buttons .btn-primary-outline {
            padding: 14px 36px;
            font-size: 16px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0a1420;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
        }

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

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

        .footer-social a {
            color: rgba(255, 255, 255, 0.4);
            font-size: 20px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .category-hero h1 {
                font-size: 40px;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }

            .nav-links {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(15, 26, 46, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }

            .nav-links li a {
                display: block;
                padding: 12px 16px;
                font-size: 16px;
            }

            .nav-actions .search-box {
                display: none;
            }

            .nav-actions .btn-primary {
                padding: 8px 16px;
                font-size: 13px;
            }

            .category-hero {
                padding: 60px 0 50px;
            }

            .category-hero h1 {
                font-size: 30px;
            }

            .category-hero p {
                font-size: 16px;
            }

            .hero-stats {
                gap: 24px;
            }

            .hero-stat .num {
                font-size: 24px;
            }

            .section-padding {
                padding: 50px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .grid-3,
            .grid-2,
            .science-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .subnav-section {
                top: 64px;
                padding: 16px 0;
            }

            .subnav-item {
                padding: 8px 18px;
                font-size: 13px;
            }

            .method-item {
                flex-direction: column;
                align-items: flex-start;
            }

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

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

            .cta-section h2 {
                font-size: 26px;
            }

            .site-header {
                padding: 0 16px;
            }

            .header-inner {
                height: 64px;
            }

            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 26px;
            }

            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .cta-buttons .btn-primary,
            .cta-buttons .btn-primary-outline {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
            --brand: #f59e0b;
            --brand-dark: #d97706;
            --brand-light: #fbbf24;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border-light: #e2e8f0;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.14);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        @media (min-width: 768px) {
            .container {
                padding: 0 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding: 0 2.5rem;
            }
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1rem;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
            z-index: 1001;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            color: #fff;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
            transition: var(--transition);
        }
        .logo:hover .logo-icon {
            transform: rotate(-8deg) scale(1.05);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
        }
        .logo span {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: #ffffff;
            transition: var(--transition);
        }
        .logo:hover span {
            color: #fbbf24;
        }
        nav {
            display: none;
            flex: 1;
            justify-content: center;
        }
        @media (min-width: 1024px) {
            nav {
                display: flex;
            }
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-links li a {
            display: flex;
            align-items: center;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-links li a.active {
            color: #fbbf24;
            background: rgba(245, 158, 11, 0.12);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: #f59e0b;
            border-radius: 2px;
        }
        .nav-actions {
            display: none;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        @media (min-width: 1024px) {
            .nav-actions {
                display: flex;
            }
        }
        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 0 0.75rem;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: #f59e0b;
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
        }
        .search-box input {
            padding: 0.45rem 0.5rem;
            font-size: 0.85rem;
            color: #ffffff;
            background: transparent;
            width: 140px;
            transition: var(--transition);
        }
        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .search-box button {
            color: rgba(255, 255, 255, 0.5);
            padding: 0.4rem 0.2rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box button:hover {
            color: #fbbf24;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.25rem;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #ffffff;
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 8px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
            white-space: nowrap;
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
            color: #ffffff;
        }
        .btn-cta:active {
            transform: translateY(0);
        }
        .mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            color: #ffffff;
            font-size: 1.3rem;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            cursor: pointer;
            transition: var(--transition);
            z-index: 1001;
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        @media (min-width: 1024px) {
            .mobile-toggle {
                display: none;
            }
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-overlay.open {
            display: block;
            opacity: 1;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 300px;
            height: 100%;
            background: #0f172a;
            z-index: 999;
            padding: 6rem 2rem 2rem;
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            border-left: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
            overflow-y: auto;
        }
        .mobile-menu.open {
            right: 0;
            display: block;
        }
        .mobile-menu .nav-links {
            flex-direction: column;
            align-items: stretch;
            gap: 0.25rem;
        }
        .mobile-menu .nav-links li a {
            padding: 0.8rem 1rem;
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            border-radius: 8px;
            justify-content: flex-start;
        }
        .mobile-menu .nav-links li a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }
        .mobile-menu .nav-links li a.active {
            color: #fbbf24;
            background: rgba(245, 158, 11, 0.1);
        }
        .mobile-menu .mobile-search {
            margin-bottom: 1.5rem;
        }
        .mobile-menu .mobile-search .search-box {
            width: 100%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-menu .mobile-search .search-box input {
            width: 100%;
        }
        .mobile-menu .mobile-cta {
            margin-top: 1.5rem;
            width: 100%;
            justify-content: center;
        }
        .page-main {
            padding-top: 68px;
            min-height: 80vh;
        }
        .article-section {
            padding: 2.5rem 0 1.5rem;
        }
        @media (min-width: 768px) {
            .article-section {
                padding: 3.5rem 0 2rem;
            }
        }
        .article-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 1.5rem 1.5rem 2rem;
            max-width: 880px;
            margin: 0 auto;
            transition: var(--transition);
        }
        @media (min-width: 768px) {
            .article-card {
                padding: 2.5rem 3rem 3rem;
            }
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 1.2rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid var(--border-light);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: #f59e0b;
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 200px;
        }
        @media (min-width: 640px) {
            .breadcrumb .current {
                max-width: 400px;
            }
        }
        .article-title {
            font-size: 1.6rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 0.8rem;
            letter-spacing: -0.01em;
        }
        @media (min-width: 640px) {
            .article-title {
                font-size: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .article-title {
                font-size: 2.25rem;
            }
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border-light);
        }
        .article-meta .category-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.2rem 0.8rem;
            background: rgba(245, 158, 11, 0.1);
            color: #b45309;
            font-weight: 600;
            font-size: 0.75rem;
            border-radius: 20px;
            border: 1px solid rgba(245, 158, 11, 0.2);
        }
        .article-meta .date {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .article-meta .date i {
            font-size: 0.75rem;
        }
        .article-body {
            font-size: 1rem;
            line-height: 1.85;
            color: #1e293b;
        }
        @media (min-width: 640px) {
            .article-body {
                font-size: 1.05rem;
                line-height: 1.9;
            }
        }
        .article-body p {
            margin-bottom: 1.2em;
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            line-height: 1.4;
        }
        .article-body h2 {
            font-size: 1.4rem;
        }
        .article-body h3 {
            font-size: 1.2rem;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 1.5em auto;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
        }
        .article-body ul,
        .article-body ol {
            padding-left: 1.5em;
            margin-bottom: 1.2em;
        }
        .article-body ul li {
            list-style: disc;
            margin-bottom: 0.3em;
        }
        .article-body ol li {
            list-style: decimal;
            margin-bottom: 0.3em;
        }
        .article-body a {
            color: #d97706;
            border-bottom: 1px solid rgba(217, 119, 6, 0.25);
        }
        .article-body a:hover {
            color: #b45309;
            border-bottom-color: #b45309;
        }
        .article-body blockquote {
            border-left: 4px solid #f59e0b;
            padding: 0.8em 1.2em;
            margin: 1.2em 0;
            background: #fffbeb;
            border-radius: 0 var(--radius) var(--radius) 0;
            color: #78350f;
            font-style: italic;
        }
        .article-body code {
            background: #f1f5f9;
            padding: 0.15em 0.4em;
            border-radius: 4px;
            font-size: 0.9em;
            color: #334155;
        }
        .article-body pre {
            background: #0f172a;
            color: #e2e8f0;
            padding: 1.2em;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 1.2em 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .article-body pre code {
            background: transparent;
            color: inherit;
            padding: 0;
            border-radius: 0;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2em 0;
            font-size: 0.9rem;
        }
        .article-body table th,
        .article-body table td {
            padding: 0.6em 1em;
            border: 1px solid var(--border-light);
            text-align: left;
        }
        .article-body table th {
            background: #f8fafc;
            font-weight: 600;
        }
        .article-body table tr:nth-child(even) {
            background: #fafafa;
        }
        .article-not-found {
            text-align: center;
            padding: 3rem 1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .article-not-found .icon {
            font-size: 3.5rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .article-not-found h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .article-not-found p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }
        .article-not-found .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #ffffff;
            font-weight: 600;
            border-radius: 8px;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
        }
        .article-not-found .btn-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
            color: #ffffff;
        }
        .related-section {
            padding: 1.5rem 0 3rem;
        }
        @media (min-width: 768px) {
            .related-section {
                padding: 2rem 0 4rem;
            }
        }
        .related-header {
            max-width: 880px;
            margin: 0 auto 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .related-header h2 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .related-header a {
            font-size: 0.85rem;
            color: #d97706;
            font-weight: 500;
        }
        .related-header a:hover {
            color: #b45309;
        }
        .related-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
            max-width: 880px;
            margin: 0 auto;
        }
        @media (min-width: 640px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 768px) {
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.25rem;
            }
        }
        .related-card {
            background: #ffffff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 1.2rem 1.2rem 1.4rem;
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.02);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .related-card .cat-tag {
            display: inline-block;
            padding: 0.15rem 0.6rem;
            font-size: 0.7rem;
            font-weight: 600;
            color: #b45309;
            background: rgba(245, 158, 11, 0.1);
            border-radius: 4px;
            margin-bottom: 0.5rem;
            align-self: flex-start;
            border: 1px solid rgba(245, 158, 11, 0.15);
        }
        .related-card h3 {
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .related-card .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 0.8rem;
            font-size: 0.75rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 0.6rem;
        }
        .related-card .meta .date {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .related-card .meta .date i {
            font-size: 0.65rem;
        }
        .cta-section {
            padding: 2.5rem 0 3rem;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            margin: 0;
        }
        @media (min-width: 768px) {
            .cta-section {
                padding: 3.5rem 0 4rem;
            }
        }
        .cta-inner {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
            padding: 0 1rem;
        }
        .cta-inner h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.6rem;
        }
        @media (min-width: 640px) {
            .cta-inner h2 {
                font-size: 1.8rem;
            }
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-inner .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.8rem 2.2rem;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: #ffffff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 10px;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.35);
        }
        .cta-inner .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.45);
            color: #ffffff;
        }
        .site-footer {
            background: #0b1120;
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        @media (min-width: 768px) {
            .site-footer {
                padding: 4rem 0 0;
            }
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 2.5rem;
            }
        }
        .footer-brand .logo {
            margin-bottom: 1rem;
        }
        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fbbf24;
            padding-left: 4px;
        }
        .footer-bottom {
            margin-top: 2.5rem;
            padding: 1.2rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (min-width: 640px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
            }
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: #fbbf24;
        }
        .footer-social {
            display: flex;
            gap: 0.8rem;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.5);
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.04);
        }
        .footer-social a:hover {
            background: rgba(245, 158, 11, 0.15);
            color: #fbbf24;
            border-color: rgba(245, 158, 11, 0.2);
            transform: translateY(-2px);
        }
        @media (max-width: 639px) {
            .article-title {
                font-size: 1.35rem;
            }
            .article-card {
                padding: 1rem 1rem 1.5rem;
                border-radius: var(--radius);
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }
            .breadcrumb .current {
                max-width: 140px;
            }
            .related-grid {
                gap: 0.8rem;
            }
            .related-card {
                padding: 0.9rem 0.9rem 1.1rem;
            }
            .related-card h3 {
                font-size: 0.88rem;
            }
            .cta-inner h2 {
                font-size: 1.25rem;
            }
            .cta-inner .btn-cta-large {
                padding: 0.65rem 1.6rem;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 1023px) {
            .mobile-menu.open {
                display: block;
            }
            .mobile-overlay.open {
                display: block;
                opacity: 1;
            }
        }
        @media (min-width: 1024px) {
            .mobile-menu,
            .mobile-overlay {
                display: none !important;
            }
        }
        .text-balance {
            text-wrap: balance;
        }
        .transition-all {
            transition: var(--transition);
        }
        .focus-ring:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        .article-body a:focus-visible,
        .btn-cta:focus-visible,
        .btn-cta-large:focus-visible,
        .btn-home:focus-visible,
        .footer-social a:focus-visible,
        .nav-links li a:focus-visible {
            outline: 2px solid #f59e0b;
            outline-offset: 2px;
        }
        .search-box input:focus-visible {
            outline: none;
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #e63946;
            --primary-dark: #c62f3a;
            --secondary: #1d3557;
            --accent: #f4a261;
            --bg-dark: #0a0f1a;
            --bg-surface: #f8f9fa;
            --text-muted: #6c757d;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.14);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: #ffffff;
            color: #1a1a2e;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            transition: var(--transition);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header & Nav */
        .site-header {
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 900;
            font-size: 1.6rem;
            letter-spacing: -0.5px;
            color: var(--secondary);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 900;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.35);
        }
        .logo span {
            color: var(--secondary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-links li a {
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #3a3a4a;
            transition: var(--transition);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
        }
        .nav-links li a.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.12);
            font-weight: 600;
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            padding: 8px 16px 8px 38px;
            border: 1px solid #e2e8f0;
            border-radius: 24px;
            background: #f1f5f9;
            font-size: 0.9rem;
            width: 180px;
            transition: var(--transition);
            outline: none;
        }
        .nav-search:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
            width: 220px;
        }
        .search-wrap {
            position: relative;
        }
        .search-wrap i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .btn-primary {
            padding: 9px 22px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            padding: 8px 20px;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            background: transparent;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.25);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--secondary);
            cursor: pointer;
            padding: 4px;
        }
        /* Hero */
        .category-hero {
            background: linear-gradient(135deg, #0a0f1a 0%, #1a2035 50%, #0f1729 100%);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(244, 162, 97, 0.1), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 3rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .category-hero h1 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .category-hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 680px;
            line-height: 1.8;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 28px;
        }
        .hero-tags span {
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 20px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }
        /* Section */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-surface);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin-top: 8px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 600px;
        }
        /* Cards */
        .card-grid {
            display: grid;
            gap: 28px;
        }
        .card-grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
        }
        .review-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .review-card .card-img {
            height: 200px;
            background: #eef2f7;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.8rem;
            color: var(--secondary);
        }
        .review-card .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            background: var(--primary);
            color: #fff;
            border-radius: 16px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .review-card .card-img .rating {
            position: absolute;
            bottom: 14px;
            right: 14px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 4px 14px;
            border-radius: 16px;
            font-size: 0.85rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .review-card .card-img .rating i {
            color: #f4a261;
        }
        .review-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .review-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .review-card .card-body .meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }
        .review-card .card-body .meta i {
            margin-right: 3px;
        }
        .review-card .card-body p {
            color: #4a4a5a;
            font-size: 0.95rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .review-card .card-body .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 16px;
        }
        .review-card .card-body .tags span {
            padding: 2px 12px;
            background: #f1f5f9;
            border-radius: 12px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .review-card .card-body .btn-link {
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
        }
        .review-card .card-body .btn-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }
        /* Comparison Table */
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .compare-table th {
            background: var(--secondary);
            color: #fff;
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.95rem;
            text-align: left;
        }
        .compare-table td {
            padding: 14px 20px;
            border-bottom: 1px solid #eef2f7;
            font-size: 0.92rem;
            color: #3a3a4a;
        }
        .compare-table tr:hover td {
            background: #f8f9fa;
        }
        .compare-table .highlight {
            color: var(--primary);
            font-weight: 600;
        }
        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: var(--transition);
            margin-bottom: 16px;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .faq-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-item h4 i {
            color: var(--primary);
            font-size: 1.1rem;
        }
        .faq-item p {
            color: #4a4a5a;
            font-size: 0.95rem;
            line-height: 1.8;
            padding-left: 26px;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary), #0f1729);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.12), transparent 70%);
            border-radius: 50%;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-primary {
            font-size: 1.05rem;
            padding: 14px 40px;
            border-radius: 30px;
        }
        /* Footer */
        .site-footer {
            background: #0a0f1a;
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo span {
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--primary);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        .footer-social {
            display: flex;
            gap: 16px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .nav-search {
                width: 140px;
            }
            .nav-search:focus {
                width: 160px;
            }
        }
        @media (max-width: 768px) {
            .site-header .container {
                height: 64px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 6px;
                border-bottom: 1px solid rgba(0, 0, 0, 0.06);
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 8px;
            }
            .nav-links li a.active::after {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .nav-actions .btn-outline,
            .nav-actions .btn-primary {
                display: none;
            }
            .nav-search {
                width: 120px;
                font-size: 0.85rem;
                padding: 6px 12px 6px 32px;
            }
            .search-wrap i {
                left: 10px;
                font-size: 0.8rem;
            }
            .category-hero {
                padding: 60px 0 50px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .card-grid-3,
            .card-grid-2 {
                grid-template-columns: 1fr;
            }
            .compare-table {
                font-size: 0.85rem;
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 12px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .hero-tags span {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .nav-search {
                width: 100px;
            }
            .nav-search:focus {
                width: 120px;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
        }
        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }
        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }
        /* Focus */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(230, 57, 70, 0.4);
            outline-offset: 2px;
        }