/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --color-primary: #c53030;
            --color-primary-hover: #a12525;
            --color-primary-light: #fef2f2;
            --color-accent: #e8a820;
            --color-accent-light: #fdf6e3;
            --color-dark: #1e1e2d;
            --color-dark-secondary: #2a2a3d;
            --color-text: #1e1e2d;
            --color-text-soft: #5a5660;
            --color-text-muted: #8b8690;
            --color-bg: #f9f8f6;
            --color-bg-alt: #f3f1ec;
            --color-white: #ffffff;
            --color-border: #e8e5df;
            --color-border-light: #f0ede8;
            --color-success: #10b981;
            --color-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --color-shadow: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --color-shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --color-shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.14), 0 8px 20px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50%;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --max-width: 1200px;
            --nav-height: 64px;
            --section-gap: 80px;
            --section-gap-sm: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-dark);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        /* ============ Container ============ */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container--narrow {
            max-width: 860px;
        }
        .container--wide {
            max-width: 1320px;
        }

        /* ============ Header & Nav ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--color-shadow-sm);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--color-shadow);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-dark);
            letter-spacing: 0.02em;
            flex-shrink: 0;
            transition: color var(--transition-fast);
        }
        .header-logo:hover {
            color: var(--color-primary);
        }
        .header-logo .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius);
            background: linear-gradient(135deg, var(--color-primary), #e05353);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .header-nav a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .header-nav a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            font-weight: 700;
        }
        .header-nav .nav-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #7a5e10;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 20px;
            margin-left: 6px;
            line-height: 1.4;
            letter-spacing: 0.02em;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .header-search-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-soft);
            background: var(--color-bg-alt);
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .header-search-btn:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .header-cta:hover {
            background: var(--color-primary-hover);
            color: #fff;
            box-shadow: var(--color-shadow);
            transform: translateY(-1px);
        }
        .header-hamburger {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: var(--color-bg-alt);
            transition: all var(--transition-fast);
        }
        .header-hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .header-hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .header-hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .header-hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ============ Mobile Nav Overlay ============ */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
            pointer-events: none;
        }
        .mobile-nav-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-panel {
            position: fixed;
            top: var(--nav-height);
            right: -300px;
            width: 280px;
            height: calc(100vh - var(--nav-height));
            background: var(--color-white);
            z-index: 1000;
            padding: 20px;
            overflow-y: auto;
            transition: right var(--transition);
            box-shadow: var(--color-shadow-xl);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-nav-panel.active {
            right: 0;
        }
        .mobile-nav-panel a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .mobile-nav-panel .mobile-cta {
            margin-top: 12px;
            display: block;
            text-align: center;
            padding: 13px 20px;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 0.95rem;
        }

        /* ============ Hero ============ */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: var(--color-dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 30, 45, 0.88) 0%, rgba(30, 30, 45, 0.72) 40%, rgba(197, 48, 48, 0.35) 100%);
            z-index: 1;
        }
        .hero-particles {
            position: absolute;
            inset: 0;
            z-index: 1;
            pointer-events: none;
            opacity: 0.5;
            background: radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 75% 60%, rgba(232, 168, 32, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 50% 80%, rgba(197, 48, 48, 0.06) 0%, transparent 40%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: 60px 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }
        .hero-badge i {
            color: var(--color-accent);
            font-size: 0.75rem;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
            line-height: 1.2;
        }
        .hero h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }
        .hero-description {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            text-align: center;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(197, 48, 48, 0.35);
        }
        .btn-primary:hover {
            background: var(--color-primary-hover);
            color: #fff;
            box-shadow: 0 6px 22px rgba(197, 48, 48, 0.45);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #5a3e08;
            box-shadow: 0 4px 14px rgba(232, 168, 32, 0.3);
        }
        .btn-accent:hover {
            background: #d4991a;
            color: #3e2a04;
            box-shadow: 0 6px 22px rgba(232, 168, 32, 0.4);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.88rem;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 15px 34px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        /* ============ Section Common ============ */
        .section {
            padding: var(--section-gap) 0;
        }
        .section--alt {
            background: var(--color-bg-alt);
        }
        .section--dark {
            background: var(--color-dark);
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .section-header p {
            color: var(--color-text-soft);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .section--dark .section-header h2 {
            color: #fff;
        }
        .section--dark .section-header p {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-primary);
            background: var(--color-primary-light);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 8px;
        }

        /* ============ Features Grid ============ */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--color-shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--color-shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .feature-card h3 {
            margin-bottom: 8px;
            font-size: 1.2rem;
        }
        .feature-card p {
            color: var(--color-text-soft);
            font-size: 0.93rem;
            line-height: 1.6;
        }

        /* ============ Category Cards ============ */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--color-shadow);
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            box-shadow: var(--color-shadow-xl);
            transform: translateY(-4px);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .category-card:hover img {
            transform: scale(1.06);
        }
        .category-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(30, 30, 45, 0.85) 0%, rgba(30, 30, 45, 0.35) 50%, rgba(30, 30, 45, 0.1) 100%);
            z-index: 1;
        }
        .category-card-content {
            position: relative;
            z-index: 2;
            padding: 28px 32px;
            color: #fff;
            width: 100%;
        }
        .category-card-content h3 {
            color: #fff;
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 6px;
        }
        .category-card-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.93rem;
            margin-bottom: 14px;
        }
        .category-card-content .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
        }
        .category-card:hover .card-link {
            gap: 10px;
        }

        /* ============ CMS News List ============ */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            background: var(--color-white);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--color-shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            align-items: center;
        }
        .news-item:hover {
            box-shadow: var(--color-shadow);
            border-color: transparent;
            transform: translateX(3px);
        }
        .news-item-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }
        .news-item-body {
            flex: 1;
            min-width: 0;
        }
        .news-item-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--color-dark);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-item-body h4 a {
            color: inherit;
        }
        .news-item-body h4 a:hover {
            color: var(--color-primary);
        }
        .news-item-body p {
            color: var(--color-text-soft);
            font-size: 0.88rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }
        .news-item-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-item-tag {
            flex-shrink: 0;
            background: var(--color-primary-light);
            color: var(--color-primary);
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .news-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--color-text-muted);
            font-size: 1rem;
            background: var(--color-white);
            border-radius: var(--radius);
            border: 1px dashed var(--color-border);
        }

        /* ============ Stats ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--color-shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--color-shadow);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--color-primary);
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }
        .stat-number .plus {
            color: var(--color-accent);
            font-size: 1.6rem;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            font-weight: 500;
        }

        /* ============ Steps / Process ============ */
        .steps-row {
            display: flex;
            gap: 0;
            position: relative;
        }
        .steps-row::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 60px;
            right: 60px;
            height: 2px;
            background: var(--color-border);
            z-index: 0;
        }
        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 12px;
        }
        .step-circle {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-full);
            background: var(--color-white);
            border: 3px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 16px auto 16px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--color-text-soft);
            transition: all var(--transition);
            position: relative;
            z-index: 1;
        }
        .step-item:hover .step-circle {
            border-color: var(--color-primary);
            color: var(--color-primary);
            box-shadow: 0 0 0 8px var(--color-primary-light);
        }
        .step-item h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-dark);
            text-align: left;
            cursor: pointer;
            transition: all var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition), padding var(--transition);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 22px 18px;
            color: var(--color-text-soft);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* ============ CTA Section ============ */
        .cta-section {
            position: relative;
            background: var(--color-dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 30, 45, 0.9) 0%, rgba(197, 48, 48, 0.55) 100%);
            z-index: 1;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-inner .btn {
            font-size: 1.05rem;
            padding: 14px 36px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--color-dark-secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ============ Back to Top ============ */
        .back-to-top {
            position: fixed;
            bottom: 28px;
            right: 28px;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-full);
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 900;
            box-shadow: var(--color-shadow-lg);
            transition: all var(--transition);
            opacity: 0;
            pointer-events: none;
            transform: translateY(12px);
            font-size: 1rem;
        }
        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }
        .back-to-top:hover {
            background: var(--color-primary-hover);
            transform: translateY(-3px);
            box-shadow: var(--color-shadow-xl);
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            :root {
                --section-gap: 56px;
                --section-gap-sm: 36px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .hero {
                min-height: 440px;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .hero-description {
                font-size: 1rem;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .category-card {
                min-height: 240px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .steps-row {
                flex-wrap: wrap;
                gap: 20px;
            }
            .steps-row::before {
                display: none;
            }
            .step-item {
                flex: 0 0 calc(50% - 20px);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .cta-section {
                padding: 40px 28px;
                border-radius: var(--radius-lg);
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 56px;
                --section-gap: 44px;
                --section-gap-sm: 28px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .header-nav {
                display: none;
            }
            .header-actions .header-cta {
                display: none;
            }
            .header-hamburger {
                display: flex;
            }
            .mobile-nav-overlay {
                display: block;
            }
            .hero {
                min-height: 380px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero-description {
                font-size: 0.93rem;
            }
            .hero-content {
                padding: 40px 0;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .category-card {
                min-height: 200px;
            }
            .category-card-content {
                padding: 20px 22px;
            }
            .category-card-content h3 {
                font-size: 1.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .step-item {
                flex: 0 0 100%;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .news-item-thumb {
                width: 100%;
                height: 140px;
            }
            .news-item-body h4 {
                white-space: normal;
                font-size: 0.95rem;
            }
            .news-item-meta {
                flex-wrap: wrap;
                gap: 8px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.93rem;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius);
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .cta-inner p {
                font-size: 0.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 13px 26px;
                font-size: 1rem;
            }
            .back-to-top {
                bottom: 16px;
                right: 16px;
                width: 38px;
                height: 38px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            h1 {
                font-size: 1.5rem;
            }
            h2 {
                font-size: 1.25rem;
            }
            .hero {
                min-height: 340px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero-description {
                font-size: 0.85rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
            .category-card {
                min-height: 170px;
            }
            .category-card-content h3 {
                font-size: 1.05rem;
            }
            .category-card-content p {
                font-size: 0.8rem;
            }
            .news-item-thumb {
                height: 100px;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .header-logo {
                font-size: 1rem;
            }
            .header-logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #d4914a;
            --primary-light: #e8b87a;
            --primary-pale: #fdf3e7;
            --primary-glow: rgba(212, 145, 74, 0.25);
            --secondary: #2d2047;
            --secondary-light: #4a3a6e;
            --accent: #e8c4a2;
            --accent-soft: #f7ede2;
            --bg: #faf8f6;
            --bg-warm: #f5f0ea;
            --surface: #ffffff;
            --surface-alt: #fefcf9;
            --text: #2c2416;
            --text-strong: #1a1410;
            --text-muted: #8c8279;
            --text-subtle: #b5aca4;
            --border: #e8e2da;
            --border-light: #f0ebe4;
            --shadow-sm: 0 1px 3px rgba(44, 36, 22, 0.06), 0 1px 2px rgba(44, 36, 22, 0.04);
            --shadow-md: 0 4px 16px rgba(44, 36, 22, 0.08), 0 2px 6px rgba(44, 36, 22, 0.04);
            --shadow-lg: 0 12px 32px rgba(44, 36, 22, 0.12), 0 4px 12px rgba(44, 36, 22, 0.06);
            --shadow-xl: 0 20px 48px rgba(44, 36, 22, 0.16), 0 8px 20px rgba(44, 36, 22, 0.08);
            --shadow-glow: 0 0 40px rgba(212, 145, 74, 0.2), 0 8px 24px rgba(212, 145, 74, 0.12);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50%;
            --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
            --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --header-height: 122px;
            --nav-top-height: 56px;
            --nav-bottom-height: 66px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            -webkit-tap-highlight-color: transparent;
        }

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

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

        button,
        input {
            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 24px;
        }

        .container-narrow {
            width: 100%;
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            box-shadow: var(--shadow-md);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-lg);
        }

        .header-top {
            background: var(--secondary);
            padding: 0;
            height: var(--nav-top-height);
            display: flex;
            align-items: center;
        }

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

        .header-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .header-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            box-shadow: 0 0 18px var(--primary-glow);
        }

        .header-top-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-full);
            padding: 7px 16px;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            transition: all var(--transition-fast);
        }

        .header-search:focus-within {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08);
        }

        .header-search svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            opacity: 0.7;
        }

        .header-search input {
            background: transparent;
            color: #ffffff;
            font-size: 14px;
            width: 160px;
            border: none;
            outline: none;
        }

        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .header-hot-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.8);
            padding: 5px 12px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-full);
            white-space: nowrap;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .header-hot-tag:hover {
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
        }

        .header-hot-tag .hot-dot {
            width: 7px;
            height: 7px;
            border-radius: var(--radius-full);
            background: #ff6b6b;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .header-bottom {
            background: var(--surface);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-bottom-height);
            display: flex;
            align-items: center;
        }

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

        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .header-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .header-nav a:hover {
            color: var(--primary);
            background: var(--primary-pale);
        }

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

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

        .nav-badge {
            display: inline-flex;
            align-items: center;
            font-size: 10px;
            font-weight: 600;
            padding: 2px 7px;
            border-radius: var(--radius-xs);
            background: linear-gradient(135deg, #ff6b6b, #e85555);
            color: #fff;
            letter-spacing: 0.3px;
            animation: badge-shimmer 2s ease-in-out infinite;
        }

        @keyframes badge-shimmer {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.75;
            }
        }

        .header-category-chips {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .category-chip {
            font-size: 13px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            background: var(--bg-warm);
            color: var(--text-muted);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .category-chip:hover {
            color: var(--primary);
            background: var(--primary-pale);
            border-color: var(--primary-pale);
        }

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

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            border-radius: 2px;
            background: var(--text);
            transition: all var(--transition-fast);
        }

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

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

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

        /* ========== ARTICLE PAGE LAYOUT ========== */
        .article-page {
            padding-top: 32px;
            padding-bottom: 60px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 28px;
            font-size: 14px;
            color: var(--text-muted);
        }

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

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

        .breadcrumb .breadcrumb-sep {
            width: 14px;
            height: 14px;
            flex-shrink: 0;
            opacity: 0.4;
        }

        .breadcrumb .breadcrumb-current {
            color: var(--text-strong);
            font-weight: 500;
        }

        /* ========== ARTICLE MAIN ========== */
        .article-main {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .article-header-section {
            padding: 36px 36px 20px;
        }

        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            background: var(--primary-pale);
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .article-category-tag .tag-dot {
            width: 8px;
            height: 8px;
            border-radius: var(--radius-full);
            background: var(--primary);
        }

        .article-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-strong);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-muted);
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-light);
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-item svg {
            width: 15px;
            height: 15px;
            flex-shrink: 0;
            opacity: 0.6;
        }

        .article-featured-image {
            width: 100%;
            aspect-ratio: 16 / 8;
            overflow: hidden;
            position: relative;
            background: var(--bg-warm);
        }

        .article-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-featured-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.08), transparent);
            pointer-events: none;
        }

        .article-body {
            padding: 36px;
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-strong);
            margin: 36px 0 16px;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-strong);
            margin: 28px 0 12px;
            line-height: 1.35;
        }

        .article-body h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-strong);
            margin: 22px 0 10px;
        }

        .article-body p {
            margin-bottom: 16px;
            text-align: justify;
        }

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

        .article-body ul {
            list-style: none;
        }

        .article-body ul li {
            position: relative;
            padding-left: 22px;
            margin-bottom: 10px;
        }

        .article-body ul li::before {
            content: '';
            position: absolute;
            left: 2px;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: var(--radius-full);
            background: var(--primary-light);
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body ol li {
            margin-bottom: 10px;
            padding-left: 4px;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px auto;
            box-shadow: var(--shadow-md);
            max-width: 100%;
        }

        .article-body blockquote {
            margin: 24px 0;
            padding: 20px 28px;
            background: var(--primary-pale);
            border-radius: var(--radius-md);
            border-left: 4px solid var(--primary);
            color: var(--text);
            font-style: italic;
            font-size: 15px;
            line-height: 1.75;
        }

        .article-body a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px solid transparent;
            transition: all var(--transition-fast);
        }

        .article-body a:hover {
            border-bottom-color: var(--primary);
        }

        .article-body strong {
            color: var(--text-strong);
            font-weight: 600;
        }

        .article-body code {
            background: var(--bg-warm);
            padding: 2px 8px;
            border-radius: var(--radius-xs);
            font-size: 0.9em;
            font-family: 'SF Mono', 'Menlo', monospace;
            color: var(--secondary);
        }

        .article-footer-section {
            padding: 0 36px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            margin: 0 36px;
        }

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

        .article-tag {
            font-size: 12px;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            background: var(--bg-warm);
            color: var(--text-muted);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
        }

        .article-tag:hover {
            background: var(--primary-pale);
            color: var(--primary);
            border-color: var(--primary-pale);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-share-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-warm);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .article-share-btn:hover {
            background: var(--primary-pale);
            border-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .article-share-btn svg {
            width: 17px;
            height: 17px;
            opacity: 0.7;
        }

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

        .sidebar-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-pale);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card-title .side-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            opacity: 0.7;
        }

        .sidebar-news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar-news-item {
            display: flex;
            gap: 12px;
            padding: 10px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .sidebar-news-item:hover {
            background: var(--bg-warm);
            border-color: var(--border-light);
            transform: translateX(3px);
        }

        .sidebar-news-thumb {
            width: 72px;
            height: 56px;
            border-radius: var(--radius-xs);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-warm);
        }

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

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

        .sidebar-news-info h5 {
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-strong);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }

        .sidebar-news-info .side-date {
            font-size: 11px;
            color: var(--text-subtle);
        }

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

        .sidebar-tag-pill {
            font-size: 12px;
            padding: 6px 13px;
            border-radius: var(--radius-full);
            background: var(--bg-warm);
            color: var(--text-muted);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
        }

        .sidebar-tag-pill:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .sidebar-tag-pill.hot {
            background: var(--primary-pale);
            color: var(--primary);
            border-color: var(--primary-light);
            font-weight: 600;
        }

        /* ========== NOT FOUND ========== */
        .not-found-section {
            text-align: center;
            padding: 80px 36px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .not-found-icon {
            font-size: 64px;
            margin-bottom: 20px;
            opacity: 0.5;
        }

        .not-found-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
        }

        .not-found-section p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            white-space: nowrap;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #c47d3a);
            color: #fff;
            box-shadow: 0 4px 16px rgba(212, 145, 74, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 145, 74, 0.4);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(212, 145, 74, 0.3);
        }

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

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

        /* ========== RELATED SECTION ========== */
        .related-section {
            margin-top: 48px;
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-strong);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title .title-accent {
            width: 5px;
            height: 26px;
            border-radius: 3px;
            background: var(--primary);
            flex-shrink: 0;
        }

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

        .related-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-pale);
        }

        .related-card-thumb {
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-warm);
            position: relative;
        }

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

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

        .related-card-thumb .thumb-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.35));
            pointer-events: none;
        }

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

        .related-card-body h4 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text-strong);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-body .card-meta {
            font-size: 12px;
            color: var(--text-subtle);
            margin-top: auto;
        }

        /* ========== CTA SECTION ========== */
        .cta-section-article {
            margin-top: 56px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }

        .cta-section-article::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-section-article::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 240px;
            height: 240px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.02);
            pointer-events: none;
        }

        .cta-section-article h3 {
            font-size: 26px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section-article p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }

        .cta-section-article .btn-primary {
            position: relative;
            z-index: 1;
            font-size: 16px;
            padding: 14px 32px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            opacity: 0.75;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            padding: 6px 0;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 13px;
            opacity: 0.6;
        }

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

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 16px;
            }

            .sidebar-card {
                flex: 1 1 280px;
                min-width: 260px;
            }

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

            .header-search input {
                width: 120px;
            }

            .header-category-chips {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-top-height: 50px;
                --nav-bottom-height: 56px;
                --header-height: 106px;
            }

            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }

            .header-brand {
                font-size: 17px;
                gap: 8px;
            }

            .header-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            .header-search {
                display: none;
            }

            .header-hot-tag {
                display: none;
            }

            .header-nav {
                position: fixed;
                top: var(--nav-top-height);
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--surface);
                flex-direction: column;
                padding: 20px;
                gap: 4px;
                transform: translateX(100%);
                transition: transform var(--transition-base);
                z-index: 999;
                box-shadow: var(--shadow-xl);
            }

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

            .header-nav a {
                width: 100%;
                padding: 14px 18px;
                font-size: 16px;
                border-radius: var(--radius-sm);
            }

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

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

            .article-title {
                font-size: 24px;
            }

            .article-header-section {
                padding: 24px 20px 16px;
            }

            .article-body {
                padding: 20px;
                font-size: 15px;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 20px;
                margin: 28px 0 12px;
            }

            .article-body h3 {
                font-size: 17px;
            }

            .article-footer-section {
                padding: 0 20px 24px;
                margin: 0 20px;
                flex-direction: column;
                align-items: flex-start;
            }

            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

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

            .cta-section-article h3 {
                font-size: 22px;
            }

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

            .section-title {
                font-size: 19px;
            }
        }

        @media (max-width: 520px) {
            .article-title {
                font-size: 20px;
            }

            .article-meta {
                gap: 12px;
                font-size: 12px;
            }

            .article-body {
                padding: 16px;
                font-size: 14px;
            }

            .article-body h2 {
                font-size: 18px;
                padding-left: 12px;
                border-left-width: 3px;
            }

            .article-body h3 {
                font-size: 16px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .sidebar-card {
                flex: 1 1 100%;
                min-width: 0;
            }

            .related-card-body h4 {
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #5B4FCF;
            --primary-light: #7B6FE8;
            --primary-soft: #EDEBFA;
            --accent: #FF6B8A;
            --accent-light: #FF8FA6;
            --gold: #F0B93C;
            --gold-light: #FDE8B3;
            --bg: #F8F7FC;
            --bg-warm: #FFFAF6;
            --surface: #FFFFFF;
            --text: #2D2A3E;
            --text-secondary: #6B6880;
            --text-muted: #9A97AD;
            --border: #E8E6F0;
            --border-light: #F2F0F8;
            --shadow-sm: 0 1px 3px rgba(45,42,62,0.06), 0 1px 2px rgba(45,42,62,0.04);
            --shadow-md: 0 4px 16px rgba(45,42,62,0.08), 0 2px 6px rgba(45,42,62,0.04);
            --shadow-lg: 0 12px 32px rgba(45,42,62,0.10), 0 4px 12px rgba(45,42,62,0.05);
            --shadow-glow: 0 0 40px rgba(91,79,207,0.12), 0 8px 24px rgba(91,79,207,0.08);
            --shadow-card-hover: 0 16px 40px rgba(45,42,62,0.12), 0 4px 16px rgba(91,79,207,0.08);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
        }

        *, *::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);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
        }

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

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

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

        ul, ol {
            list-style: none;
        }

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(45,42,62,0.04);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 20px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius);
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(91,79,207,0.25);
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1.5px solid var(--border);
            border-radius: 50px;
            padding: 9px 18px;
            gap: 8px;
            transition: all var(--transition);
            max-width: 320px;
            flex: 1;
        }

        .header-search:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(91,79,207,0.08);
            background: var(--surface);
        }

        .header-search input {
            background: transparent;
            color: var(--text);
            width: 100%;
            font-size: 0.95rem;
        }

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

        .header-search .search-icon {
            color: var(--text-muted);
            font-size: 0.95rem;
            flex-shrink: 0;
            transition: color var(--transition);
        }

        .header-search:focus-within .search-icon {
            color: var(--primary);
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .header-nav a {
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .header-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .header-nav a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(91,79,207,0.3);
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 20px;
            margin-left: 6px;
            letter-spacing: 0.02em;
            animation: badgePulse 2.5s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.82; }
        }

        .header-nav a.active .nav-badge {
            background: #fff;
            color: var(--primary);
        }

        /* 移动端菜单按钮 */
        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            background: var(--bg);
            border: 1.5px solid var(--border);
            cursor: pointer;
            font-size: 1.2rem;
            color: var(--text);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .mobile-menu-toggle:hover {
            background: var(--primary-soft);
            border-color: var(--primary-light);
            color: var(--primary);
        }

        /* 分类Banner */
        .category-banner {
            position: relative;
            padding: 70px 0 60px;
            background: linear-gradient(160deg, #F0EDFA 0%, #E8E4F6 30%, #FDF5F3 70%, #FFF8F4 100%);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(123,111,232,0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,107,138,0.10) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-banner-bg {
            position: absolute;
            right: 5%;
            top: 50%;
            transform: translateY(-50%);
            width: 340px;
            height: 240px;
            border-radius: var(--radius-xl);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.65;
            pointer-events: none;
            box-shadow: var(--shadow-lg);
        }

        .category-banner-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
        }

        .category-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

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

        .category-breadcrumb a:hover {
            color: var(--primary);
        }

        .category-breadcrumb .separator {
            font-size: 0.7rem;
            opacity: 0.6;
        }

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

        .category-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.2;
        }

        .category-banner h1 .highlight {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-banner .banner-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 520px;
        }

        .banner-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .banner-stat-item .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .banner-stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 子分类标签栏 */
        .subcategory-bar {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            position: sticky;
            top: 69px;
            z-index: 999;
            box-shadow: 0 1px 4px rgba(45,42,62,0.03);
        }

        .subcategory-scroll {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            flex-wrap: nowrap;
            padding: 2px 0;
        }

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

        .subcategory-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            border: 1.5px solid var(--border);
            background: var(--surface);
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .subcategory-tag:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: var(--primary-soft);
        }

        .subcategory-tag.active-tag {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(91,79,207,0.25);
        }

        .subcategory-tag .tag-count {
            font-size: 0.75rem;
            opacity: 0.75;
            font-weight: 400;
        }

        /* 主内容区 */
        .category-main {
            padding: 48px 0 60px;
        }

        .category-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 36px;
            align-items: start;
        }

        /* 文章列表 */
        .articles-section {}
        .articles-section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .articles-section-header h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
        }

        .articles-sort {
            display: flex;
            gap: 4px;
            background: var(--surface);
            border-radius: 50px;
            padding: 4px;
            border: 1px solid var(--border);
        }

        .articles-sort button {
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .articles-sort button.sort-active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(91,79,207,0.2);
        }

        .articles-sort button:hover:not(.sort-active) {
            color: var(--primary);
        }

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

        .article-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            box-shadow: var(--shadow-sm);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

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

        .article-card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg);
        }

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

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

        .article-card-image .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
        }

        .article-card-image .card-views {
            position: absolute;
            bottom: 12px;
            right: 12px;
            z-index: 2;
            background: rgba(0,0,0,0.55);
            color: #fff;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            gap: 4px;
            backdrop-filter: blur(4px);
        }

        .article-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .article-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
            letter-spacing: -0.01em;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-body h3 a {
            color: inherit;
            transition: color var(--transition);
        }

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

        .article-card-body .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: auto;
        }

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

        .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        .tag-summit {
            background: #FFF0E8;
            color: #D4743B;
        }
        .tag-workshop {
            background: #E8F4FF;
            color: #3B7FD4;
        }
        .tag-forum {
            background: #F0EBFF;
            color: #5B4FCF;
        }
        .tag-member {
            background: #FFF8E1;
            color: #B8860B;
        }
        .tag-brand {
            background: #FFE8EC;
            color: #C94B6C;
        }
        .tag-review {
            background: #E8F8F0;
            color: #2E8B57;
        }
        .tag-guide {
            background: #F5F0FF;
            color: #6B4FCF;
        }
        .tag-faq {
            background: #FFF0F5;
            color: #C94B7A;
        }

        /* 加载更多 */
        .load-more-wrap {
            text-align: center;
            margin-top: 32px;
        }

        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            border: 2px solid var(--border);
            background: var(--surface);
            color: var(--text-secondary);
            transition: all var(--transition);
        }

        .btn-load-more:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background: var(--primary-soft);
            box-shadow: var(--shadow-md);
        }

        /* 侧边栏 */
        .category-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 140px;
        }

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

        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 .icon-fire {
            color: #FF6B6B;
            font-size: 1rem;
        }

        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .hot-list-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }

        .hot-list-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .hot-list-item:hover {
            padding-left: 6px;
        }

        .hot-rank-num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 28px;
            text-align: center;
            flex-shrink: 0;
            letter-spacing: -0.02em;
        }

        .hot-list-item:nth-child(1) .hot-rank-num { color: #FF6B6B; }
        .hot-list-item:nth-child(2) .hot-rank-num { color: #FF9F43; }
        .hot-list-item:nth-child(3) .hot-rank-num { color: #F0B93C; }

        .hot-info h4 {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }

        .hot-info .hot-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 10px;
            align-items: center;
        }

        /* 订阅卡片 */
        .subscribe-card {
            background: linear-gradient(135deg, #F8F7FC 0%, #FFF5F7 100%);
            border: 1.5px solid var(--primary-soft);
            text-align: center;
            padding: 26px 20px;
        }

        .subscribe-card .sub-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            box-shadow: 0 8px 20px rgba(91,79,207,0.3);
        }

        .subscribe-card h3 {
            justify-content: center;
            margin-bottom: 8px;
        }

        .subscribe-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.5;
        }

        .subscribe-input-group {
            display: flex;
            gap: 0;
            border-radius: 50px;
            overflow: hidden;
            border: 1.5px solid var(--border);
            background: var(--surface);
        }

        .subscribe-input-group input {
            flex: 1;
            padding: 11px 16px;
            font-size: 0.9rem;
            color: var(--text);
            min-width: 0;
        }

        .subscribe-input-group input::placeholder {
            color: var(--text-muted);
        }

        .subscribe-input-group button {
            padding: 11px 20px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .subscribe-input-group button:hover {
            background: var(--primary-light);
        }

        /* 专题推荐 */
        .featured-section {
            padding: 0 0 56px;
        }

        .featured-section h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

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

        .featured-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-slow);
            cursor: pointer;
            position: relative;
        }

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

        .featured-card-image {
            aspect-ratio: 16 / 11;
            overflow: hidden;
            background: var(--bg);
            position: relative;
        }

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

        .featured-card:hover .featured-card-image img {
            transform: scale(1.05);
        }

        .featured-card-image .featured-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 50px;
            letter-spacing: 0.02em;
            z-index: 2;
        }

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

        .featured-card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .featured-card-body p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* FAQ */
        .faq-section {
            padding: 0 0 60px;
        }

        .faq-section h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .faq-question .faq-icon {
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

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

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

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

        .faq-item.open {
            border-color: var(--primary-soft);
            box-shadow: var(--shadow-md);
        }

        /* CTA */
        .cta-section {
            padding: 48px 0 60px;
            text-align: center;
        }

        .cta-inner {
            background: linear-gradient(145deg, #F8F7FC 0%, #EDEAFA 40%, #FFF5F7 100%);
            border-radius: var(--radius-2xl);
            padding: 48px 40px;
            border: 1.5px solid var(--primary-soft);
            position: relative;
            overflow: hidden;
        }

        .cta-inner::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(123,111,232,0.14) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            position: relative;
            z-index: 1;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            background: var(--primary);
            color: #fff;
            transition: all var(--transition);
            box-shadow: 0 8px 24px rgba(91,79,207,0.35);
            position: relative;
            z-index: 1;
        }

        .btn-cta-primary:hover {
            background: var(--primary-light);
            box-shadow: 0 12px 32px rgba(91,79,207,0.45);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #1E1C2A;
            color: #C4C1D4;
            padding: 48px 0 28px;
            border-top: 4px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            opacity: 0.75;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .footer-col a {
            display: block;
            color: #C4C1D4;
            font-size: 0.88rem;
            padding: 5px 0;
            transition: all var(--transition);
            opacity: 0.75;
        }

        .footer-col a:hover {
            color: #fff;
            opacity: 1;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            opacity: 0.6;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
            }
            .category-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .articles-grid {
                grid-template-columns: 1fr 1fr;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-banner h1 {
                font-size: 2.1rem;
            }
            .category-banner-bg {
                width: 240px;
                height: 170px;
                opacity: 0.4;
                right: 2%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .header-search {
                max-width: 200px;
            }
        }

        @media (max-width: 768px) {
            .header-search {
                display: none;
            }
            .header-nav {
                display: none;
            }
            .header-nav.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--surface);
                border-bottom: 1px solid var(--border);
                padding: 16px 24px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .category-sidebar {
                grid-template-columns: 1fr;
            }
            .category-banner {
                padding: 44px 0 36px;
                min-height: auto;
            }
            .category-banner h1 {
                font-size: 1.7rem;
            }
            .category-banner .banner-desc {
                font-size: 0.95rem;
            }
            .category-banner-bg {
                display: none;
            }
            .banner-stats {
                gap: 16px;
            }
            .subcategory-bar {
                top: 57px;
            }
            .cta-inner {
                padding: 32px 20px;
            }
            .cta-inner h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-banner h1 {
                font-size: 1.4rem;
            }
            .banner-stats {
                flex-direction: column;
                gap: 10px;
            }
            .articles-section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .articles-sort button {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .subcategory-tag {
                padding: 6px 14px;
                font-size: 0.82rem;
            }
            .btn-load-more {
                padding: 10px 24px;
                font-size: 0.88rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }