/* roulang page: index */
:root {
            --color-brand-700: #1a1f3d;
            --color-brand-800: #141830;
            --color-brand-900: #0d1020;
            --color-brand-950: #080a14;
            --color-accent-500: #ff6b35;
            --color-accent-600: #e8592a;
            --color-gold-500: #f0c040;
            --color-surface-50: #f8f9fc;
            --color-surface-100: #f1f3f9;
            --color-surface-200: #e5e8f2;
            --color-surface-300: #d1d6e8;
            --color-text-primary: #1a1f2e;
            --color-text-secondary: #5a6070;
            --color-text-muted: #8b909e;
            --color-border: #e5e8f2;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 1px 3px rgba(13,16,32,0.06), 0 4px 16px rgba(13,16,32,0.04);
            --shadow-card-hover: 0 2px 8px rgba(13,16,32,0.08), 0 8px 32px rgba(13,16,32,0.06);
            --shadow-nav: 0 1px 0 rgba(13,16,32,0.06), 0 2px 8px rgba(13,16,32,0.03);
            --transition-fast: 160ms ease;
            --transition-normal: 240ms ease;
            --transition-slow: 360ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::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: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
            line-height: 1.65;
            color: var(--color-text-primary);
            background-color: #ffffff;
            overflow-x: hidden;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            box-shadow: var(--shadow-nav);
            transition: box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: 0 1px 0 rgba(13,16,32,0.08), 0 4px 20px rgba(13,16,32,0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 1.25rem;
        }
        @media (min-width: 768px) {
            .header-inner {
                height: 68px;
            }
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-brand-700);
            letter-spacing: -0.01em;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-link .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #1a1f3d 0%, #2d3560 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }
        @media (min-width: 768px) {
            .logo-link {
                font-size: 1.35rem;
            }
            .logo-link .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
        }
        .main-nav {
            display: none;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
        }
        @media (min-width: 768px) {
            .main-nav {
                display: flex;
            }
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.925rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--color-brand-700);
            background: var(--color-surface-100);
        }
        .main-nav a.active {
            color: var(--color-brand-700);
            font-weight: 600;
            background: var(--color-surface-100);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            flex-shrink: 0;
        }
        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.875rem;
            background: linear-gradient(135deg, #ff6b35 0%, #e8592a 100%);
            color: #fff;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 6px rgba(255,107,53,0.2);
            white-space: nowrap;
        }
        .btn-header:hover {
            box-shadow: 0 4px 14px rgba(255,107,53,0.35);
            transform: translateY(-1px);
        }
        .btn-header:active {
            transform: translateY(0);
            box-shadow: 0 1px 3px rgba(255,107,53,0.2);
        }
        .mobile-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            color: var(--color-text-primary);
            font-size: 1.35rem;
            transition: background var(--transition-fast);
        }
        .mobile-toggle:hover {
            background: var(--color-surface-100);
        }
        @media (min-width: 768px) {
            .mobile-toggle {
                display: none;
            }
        }
        /* Mobile nav drawer */
        .mobile-nav-overlay {
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(0,0,0,0.45);
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-normal);
        }
        .mobile-nav-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: 0;
            z-index: 1001;
            width: 280px;
            max-width: 85vw;
            height: 100%;
            background: #fff;
            box-shadow: -4px 0 24px rgba(0,0,0,0.12);
            transform: translateX(100%);
            transition: transform var(--transition-slow);
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .mobile-nav-panel.open {
            transform: translateX(0);
        }
        .mobile-nav-panel .mobile-close {
            align-self: flex-end;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel .mobile-close:hover {
            background: var(--color-surface-100);
            color: var(--color-text-primary);
        }
        .mobile-nav-panel a {
            display: block;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 1rem;
            color: var(--color-text-primary);
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--color-surface-100);
            color: var(--color-brand-700);
            font-weight: 600;
        }
        .mobile-nav-panel .mobile-cta {
            display: block;
            text-align: center;
            padding: 0.8rem 1.2rem;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #ff6b35 0%, #e8592a 100%);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-top: auto;
            box-shadow: 0 2px 8px rgba(255,107,53,0.25);
        }

        /* Hero */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #0d1020 0%, #1a1f3d 40%, #1e2a4a 100%);
            min-height: 580px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .hero-section {
                min-height: 640px;
            }
        }
        @media (min-width: 1024px) {
            .hero-section {
                min-height: 700px;
            }
        }
        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            pointer-events: none;
        }
        .hero-overlay-dots {
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
            background-size: 28px 28px;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 3rem 0;
            width: 100%;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1rem;
            border-radius: 9999px;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.18);
            color: #f0c040;
            font-weight: 600;
            font-size: 0.825rem;
            margin-bottom: 1.25rem;
            backdrop-filter: blur(4px);
        }
        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #4ade80;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        .hero-title {
            font-size: 2.25rem;
            font-weight: 900;
            line-height: 1.15;
            color: #ffffff;
            letter-spacing: -0.02em;
            max-width: 680px;
        }
        @media (min-width: 640px) {
            .hero-title {
                font-size: 2.8rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.4rem;
            }
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #f0c040 0%, #ffa94d 50%, #ff6b35 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.78);
            max-width: 540px;
            margin-top: 1rem;
            line-height: 1.7;
        }
        @media (min-width: 768px) {
            .hero-desc {
                font-size: 1.125rem;
            }
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 1.75rem;
            align-items: center;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, #ff6b35 0%, #e8592a 100%);
            color: #fff;
            box-shadow: 0 4px 20px rgba(255,107,53,0.4);
            transition: all var(--transition-normal);
            letter-spacing: 0.01em;
        }
        .btn-hero-primary:hover {
            box-shadow: 0 6px 28px rgba(255,107,53,0.5);
            transform: translateY(-2px);
        }
        .btn-hero-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(255,107,53,0.3);
        }
        .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 1rem;
            background: rgba(255,255,255,0.08);
            color: #fff;
            border: 1px solid rgba(255,255,255,0.2);
            transition: all var(--transition-normal);
            backdrop-filter: blur(4px);
        }
        .btn-hero-secondary:hover {
            background: rgba(255,255,255,0.15);
            border-color: rgba(255,255,255,0.35);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 2.5rem;
        }
        .hero-stat-item {
            display: flex;
            flex-direction: column;
            gap: 0.15rem;
        }
        .hero-stat-value {
            font-size: 1.75rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .hero-stat-value {
                font-size: 2rem;
            }
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.55);
            font-weight: 500;
        }
        .hero-visual {
            display: none;
        }
        @media (min-width: 1024px) {
            .hero-visual {
                display: flex;
                position: absolute;
                right: 2rem;
                top: 50%;
                transform: translateY(-50%);
                z-index: 2;
                width: 380px;
                height: 380px;
                border-radius: 50%;
                background: radial-gradient(circle, rgba(240,192,64,0.12) 0%, rgba(255,107,53,0.05) 50%, transparent 70%);
                align-items: center;
                justify-content: center;
            }
            .hero-visual-inner {
                width: 180px;
                height: 180px;
                border-radius: 50%;
                background: rgba(255,255,255,0.05);
                border: 2px solid rgba(255,255,255,0.12);
                display: flex;
                align-items: center;
                justify-content: center;
                font-size: 3.5rem;
                color: #f0c040;
            }
        }

        /* Section */
        .section {
            padding: 3.5rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }
        .section-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        @media (min-width: 768px) {
            .section-header {
                margin-bottom: 3.5rem;
            }
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: #ff6b35;
            margin-bottom: 0.5rem;
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-brand-700);
            letter-spacing: -0.01em;
            line-height: 1.25;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        .section-desc {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0.75rem auto 0;
            line-height: 1.65;
        }

        /* Feature cards */
        .features-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 640px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.5rem;
            }
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 1.75rem;
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: transparent;
            transform: translateY(-3px);
        }
        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #eef2ff 0%, #f8f9fc 100%);
            color: #4c6ef5;
        }
        .feature-card:nth-child(2) .feature-card-icon {
            background: linear-gradient(135deg, #fff3e0 0%, #fff8f0 100%);
            color: #ff6b35;
        }
        .feature-card:nth-child(3) .feature-card-icon {
            background: linear-gradient(135deg, #e8faf0 0%, #f0fdf6 100%);
            color: #22c55e;
        }
        .feature-card:nth-child(4) .feature-card-icon {
            background: linear-gradient(135deg, #fdf2f8 0%, #fef6fb 100%);
            color: #ec4899;
        }
        .feature-card:nth-child(5) .feature-card-icon {
            background: linear-gradient(135deg, #eff6ff 0%, #f5f9ff 100%);
            color: #3b82f6;
        }
        .feature-card:nth-child(6) .feature-card-icon {
            background: linear-gradient(135deg, #fefce8 0%, #fefdf5 100%);
            color: #eab308;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-brand-700);
            margin-bottom: 0.4rem;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* Category cards */
        .category-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 640px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.5rem;
            }
        }
        .category-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: transparent;
            transform: translateY(-4px);
        }
        .category-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        @media (min-width: 768px) {
            .category-card-img {
                height: 220px;
            }
        }
        .category-card-body {
            padding: 1.25rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.7rem;
            border-radius: 9999px;
            background: #fff3e0;
            color: #ff6b35;
            margin-bottom: 0.6rem;
            align-self: flex-start;
        }
        .category-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-brand-700);
            margin-bottom: 0.35rem;
        }
        .category-card p {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            flex: 1;
        }
        .category-card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-weight: 600;
            font-size: 0.9rem;
            color: #ff6b35;
            margin-top: 0.75rem;
            transition: gap var(--transition-fast);
        }
        .category-card-link:hover {
            gap: 0.6rem;
        }

        /* News list */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .news-item {
            display: flex;
            gap: 1rem;
            padding: 1rem 1.25rem;
            border-radius: var(--radius-xl);
            background: #fff;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: transparent;
        }
        .news-item-thumb {
            width: 80px;
            height: 60px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }
        @media (min-width: 640px) {
            .news-item-thumb {
                width: 100px;
                height: 72px;
            }
        }
        .news-item-content {
            flex: 1;
            min-width: 0;
        }
        .news-item-meta {
            display: flex;
            gap: 0.75rem;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-bottom: 0.25rem;
        }
        .news-item-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-brand-700);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item-title:hover {
            color: #ff6b35;
        }
        @media (min-width: 768px) {
            .news-item-title {
                font-size: 1rem;
            }
        }
        .news-empty {
            text-align: center;
            padding: 3rem 1rem;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            background: var(--color-surface-50);
            border-radius: var(--radius-xl);
            border: 1px dashed var(--color-border);
        }

        /* Stats section */
        .stats-section {
            background: linear-gradient(160deg, #0d1020 0%, #1a1f3d 100%);
            position: relative;
            overflow: hidden;
        }
        .stats-bg-pattern {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }
        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            text-align: center;
        }
        @media (min-width: 640px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 2rem;
            }
        }
        .stat-card {
            padding: 1.25rem;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 900;
            color: #ffffff;
            letter-spacing: -0.02em;
        }
        @media (min-width: 768px) {
            .stat-number {
                font-size: 2.5rem;
            }
        }
        .stat-label-text {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            margin-top: 0.3rem;
            font-weight: 500;
        }

        /* FAQ */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            overflow: hidden;
            transition: all var(--transition-fast);
            background: #fff;
        }
        .faq-item:hover {
            border-color: #d1d6e8;
        }
        .faq-question {
            width: 100%;
            padding: 1.15rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-brand-700);
            text-align: left;
            transition: color var(--transition-fast);
            cursor: pointer;
            background: none;
            border: none;
        }
        .faq-question:hover {
            color: #ff6b35;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-surface-100);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: all var(--transition-fast);
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-icon {
            background: #ff6b35;
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(160deg, #1a1f3d 0%, #1e2a4a 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 3rem 0;
        }
        @media (min-width: 768px) {
            .cta-inner {
                padding: 4rem 0;
            }
        }
        .cta-title {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
        }
        @media (min-width: 768px) {
            .cta-title {
                font-size: 2rem;
            }
        }
        .cta-desc {
            font-size: 1rem;
            color: rgba(255,255,255,0.7);
            margin-top: 0.75rem;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            justify-content: center;
            margin-top: 1.75rem;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, #f0c040 0%, #ffa94d 100%);
            color: #1a1f3d;
            box-shadow: 0 4px 20px rgba(240,192,64,0.35);
            transition: all var(--transition-normal);
        }
        .btn-cta:hover {
            box-shadow: 0 6px 28px rgba(240,192,64,0.5);
            transform: translateY(-2px);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.3);
            transition: all var(--transition-normal);
        }
        .btn-cta-outline:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.5);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--color-brand-900);
            color: rgba(255,255,255,0.7);
            padding: 2.5rem 0 1.5rem;
        }
        @media (min-width: 768px) {
            .site-footer {
                padding: 3.5rem 0 1.5rem;
            }
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 3rem;
            }
        }
        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
        }
        .footer-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.5);
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }
        .footer-col a {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: #ffa94d;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.4);
        }

        /* Utility */
        .text-accent {
            color: #ff6b35;
        }
        .bg-surface {
            background: var(--color-surface-50);
        }
        .divider {
            width: 40px;
            height: 3px;
            border-radius: 9999px;
            background: #ff6b35;
            margin: 0.75rem auto 0;
        }
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            margin: -1px;
            padding: 0;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }

        @media (max-width: 767px) {
            .hero-stats {
                gap: 1.25rem;
            }
            .hero-stat-value {
                font-size: 1.4rem;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                padding: 0.7rem 1.5rem;
                font-size: 0.9rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .feature-card {
                padding: 1.25rem;
            }
            .category-card-img {
                height: 160px;
            }
            .stats-grid {
                gap: 1rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .cta-title {
                font-size: 1.3rem;
            }
            .news-item {
                flex-direction: column;
                gap: 0.6rem;
            }
            .news-item-thumb {
                width: 100%;
                height: 160px;
                border-radius: var(--radius-md);
            }
        }
        @media (min-width: 768px) and (max-width: 1023px) {
            .hero-title {
                font-size: 2.4rem;
            }
            .category-card-img {
                height: 180px;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #0f172a;
            --color-primary-light: #1e293b;
            --color-accent: #f59e0b;
            --color-accent-hover: #d97706;
            --color-cta: #f97316;
            --color-cta-hover: #ea580c;
            --color-highlight: #3b82f6;
            --color-bg: #f8fafc;
            --color-bg-alt: #f1f5f9;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-soft: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #10b981;
            --color-danger: #ef4444;
            --color-tag-bg: #eff6ff;
            --color-tag-text: #3b82f6;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
            --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.07);
            --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.10);
            --shadow-xl: 0 20px 50px rgba(15, 23, 42, 0.14);
            --shadow-card-hover: 0 8px 28px rgba(15, 23, 42, 0.12);
            --space-xs: 0.5rem;
            --space-sm: 0.75rem;
            --space-md: 1rem;
            --space-lg: 1.5rem;
            --space-xl: 2rem;
            --space-2xl: 3rem;
            --space-3xl: 4rem;
            --space-4xl: 5rem;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'JetBrains Mono', 'Consolas', monospace;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        body { font-family: var(--font-sans); line-height: 1.7; color: var(--color-text); background: var(--color-bg); min-height: 100vh; }

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

        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--space-lg); }
        .section { padding: var(--space-3xl) 0; }
        .section-sm { padding: var(--space-2xl) 0; }

        /* ========== HEADER / NAV ========== */
        .site-header { position: sticky; top: 0; z-index: 1000; background: var(--color-surface); border-bottom: 1px solid var(--color-border); box-shadow: var(--shadow-sm); transition: box-shadow var(--transition-base); }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner { display: flex; align-items: center; justify-content: space-between; padding: 0.7rem 0; gap: var(--space-lg); }
        .header-brand { display: flex; align-items: center; gap: var(--space-sm); flex-shrink: 0; }
        .header-logo-icon { width: 38px; height: 38px; background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-highlight) 100%); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 1.1rem; letter-spacing: -1px; }
        .header-brand-name { font-weight: 700; font-size: 1.15rem; color: var(--color-primary); white-space: nowrap; letter-spacing: -0.3px; }
        .header-nav { display: flex; align-items: center; gap: var(--space-xs); }
        .main-nav { display: flex; align-items: center; gap: 0.3rem; }
        .main-nav a { display: inline-flex; align-items: center; padding: 0.5rem 1rem; font-weight: 500; font-size: 0.92rem; color: var(--color-text-soft); border-radius: var(--radius-full); transition: all var(--transition-fast); white-space: nowrap; position: relative; }
        .main-nav a:hover { color: var(--color-primary); background: var(--color-bg-alt); }
        .main-nav a.active { color: var(--color-surface); background: var(--color-primary); font-weight: 600; box-shadow: var(--shadow-sm); }
        .main-nav a.active:hover { background: var(--color-primary-light); color: var(--color-surface); }
        .header-actions { display: flex; align-items: center; gap: var(--space-sm); flex-shrink: 0; }
        .btn-search { width: 38px; height: 38px; border-radius: var(--radius-full); background: var(--color-bg-alt); display: flex; align-items: center; justify-content: center; color: var(--color-text-soft); transition: all var(--transition-fast); font-size: 0.95rem; }
        .btn-search:hover { background: var(--color-border); color: var(--color-primary); }
        .btn-subscribe { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.5rem 1.2rem; background: var(--color-cta); color: #fff; font-weight: 600; font-size: 0.88rem; border-radius: var(--radius-full); transition: all var(--transition-fast); white-space: nowrap; box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25); }
        .btn-subscribe:hover { background: var(--color-cta-hover); box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35); transform: translateY(-1px); color: #fff; }
        .mobile-toggle { display: none; width: 38px; height: 38px; border-radius: var(--radius-sm); background: var(--color-bg-alt); align-items: center; justify-content: center; font-size: 1.2rem; color: var(--color-text); }
        .mobile-menu { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--color-surface); z-index: 999; padding: var(--space-xl); flex-direction: column; gap: var(--space-md); overflow-y: auto; }
        .mobile-menu.active { display: flex; }
        .mobile-menu-header { display: flex; align-items: center; justify-content: space-between; }
        .mobile-menu-close { width: 40px; height: 40px; border-radius: var(--radius-full); background: var(--color-bg-alt); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--color-text); }
        .mobile-menu .main-nav { flex-direction: column; gap: 0.4rem; width: 100%; }
        .mobile-menu .main-nav a { width: 100%; padding: 0.8rem 1.2rem; border-radius: var(--radius-md); font-size: 1rem; justify-content: flex-start; }

        /* ========== ARTICLE BANNER ========== */
        .article-banner { position: relative; background: linear-gradient(135deg, var(--color-primary) 0%, #1e3a5f 40%, #0f2b45 100%); padding: var(--space-3xl) 0 var(--space-2xl); color: #fff; overflow: hidden; }
        .article-banner::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.12; pointer-events: none; }
        .article-banner::after { content: ''; position: absolute; top: -60px; right: -80px; width: 300px; height: 300px; background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%); border-radius: 50%; pointer-events: none; }
        .article-banner .container { position: relative; z-index: 2; }
        .breadcrumb { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; color: rgba(255,255,255,0.7); margin-bottom: var(--space-lg); flex-wrap: wrap; }
        .breadcrumb a { color: rgba(255,255,255,0.8); transition: color var(--transition-fast); }
        .breadcrumb a:hover { color: var(--color-accent); }
        .breadcrumb .sep { color: rgba(255,255,255,0.4); font-size: 0.7rem; }
        .breadcrumb .current { color: var(--color-accent); font-weight: 500; }
        .article-banner-tag { display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.3rem 0.9rem; background: rgba(255,255,255,0.15); backdrop-filter: blur(4px); border: 1px solid rgba(255,255,255,0.2); border-radius: var(--radius-full); font-size: 0.82rem; color: #fff; font-weight: 500; margin-bottom: var(--space-md); }
        .article-banner h1 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); color: #fff; margin-bottom: var(--space-md); line-height: 1.35; letter-spacing: -0.3px; }
        .article-meta { display: flex; align-items: center; gap: var(--space-md); flex-wrap: wrap; font-size: 0.88rem; color: rgba(255,255,255,0.75); }
        .article-meta span { display: inline-flex; align-items: center; gap: 0.3rem; }
        .article-meta .meta-dot { width: 4px; height: 4px; border-radius: 50%; background: rgba(255,255,255,0.4); }

        /* ========== ARTICLE LAYOUT ========== */
        .article-layout { display: grid; grid-template-columns: 1fr 340px; gap: var(--space-2xl); align-items: start; padding: var(--space-2xl) 0 var(--space-3xl); }
        .article-main { min-width: 0; }
        .article-sidebar { position: sticky; top: 90px; display: flex; flex-direction: column; gap: var(--space-xl); }

        /* ========== ARTICLE CONTENT ========== */
        .article-featured-image { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: var(--space-xl); box-shadow: var(--shadow-lg); }
        .article-featured-image img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
        .article-body { font-size: 1.05rem; line-height: 1.85; color: var(--color-text); }
        .article-body p { margin-bottom: var(--space-lg); }
        .article-body h2 { font-size: 1.4rem; margin: var(--space-xl) 0 var(--space-md); color: var(--color-primary); padding-bottom: 0.5rem; border-bottom: 2px solid var(--color-border); }
        .article-body h3 { font-size: 1.2rem; margin: var(--space-lg) 0 var(--space-sm); color: var(--color-primary); }
        .article-body blockquote { border-left: 4px solid var(--color-accent); padding: var(--space-md) var(--space-lg); margin: var(--space-lg) 0; background: var(--color-bg-alt); border-radius: 0 var(--radius-md) var(--radius-md) 0; font-style: italic; color: var(--color-text-soft); }
        .article-body ul, .article-body ol { margin: var(--space-md) 0 var(--space-lg) var(--space-xl); }
        .article-body ul li { list-style: disc; margin-bottom: 0.5rem; }
        .article-body ol li { list-style: decimal; margin-bottom: 0.5rem; }
        .article-body strong { color: var(--color-primary); font-weight: 700; }
        .article-body a { color: var(--color-highlight); text-decoration: underline; text-underline-offset: 2px; }
        .article-body a:hover { color: var(--color-primary); }
        .article-body img { border-radius: var(--radius-md); margin: var(--space-lg) 0; }

        /* ========== ARTICLE FOOTER BAR ========== */
        .article-footer-bar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-md); padding: var(--space-lg) 0; margin-top: var(--space-xl); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
        .article-tags { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
        .article-tags .tag { display: inline-flex; padding: 0.3rem 0.8rem; background: var(--color-tag-bg); color: var(--color-tag-text); border-radius: var(--radius-full); font-size: 0.82rem; font-weight: 500; transition: all var(--transition-fast); }
        .article-tags .tag:hover { background: var(--color-highlight); color: #fff; }
        .article-share { display: flex; align-items: center; gap: 0.6rem; }
        .article-share span { font-size: 0.85rem; color: var(--color-text-soft); }
        .share-btn { width: 34px; height: 34px; border-radius: var(--radius-full); display: inline-flex; align-items: center; justify-content: center; font-size: 0.9rem; transition: all var(--transition-fast); background: var(--color-bg-alt); color: var(--color-text-soft); }
        .share-btn:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); }

        /* ========== SIDEBAR ========== */
        .sidebar-card { background: var(--color-surface); border-radius: var(--radius-lg); padding: var(--space-xl); box-shadow: var(--shadow-sm); border: 1px solid var(--color-border-light); }
        .sidebar-card h3 { font-size: 1.1rem; margin-bottom: var(--space-lg); padding-bottom: var(--space-sm); border-bottom: 2px solid var(--color-accent); display: inline-block; }
        .sidebar-post-list { display: flex; flex-direction: column; gap: var(--space-md); }
        .sidebar-post-item { display: flex; gap: var(--space-sm); align-items: flex-start; padding-bottom: var(--space-md); border-bottom: 1px solid var(--color-border-light); transition: all var(--transition-fast); }
        .sidebar-post-item:last-child { border-bottom: none; padding-bottom: 0; }
        .sidebar-post-item:hover { transform: translateX(3px); }
        .sidebar-post-thumb { width: 70px; height: 50px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; background: var(--color-bg-alt); }
        .sidebar-post-info { min-width: 0; }
        .sidebar-post-info a { font-size: 0.88rem; font-weight: 600; color: var(--color-text); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color var(--transition-fast); }
        .sidebar-post-info a:hover { color: var(--color-highlight); }
        .sidebar-post-info .post-date { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 0.2rem; }
        .sidebar-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
        .sidebar-tags .tag { padding: 0.35rem 0.85rem; background: var(--color-bg-alt); color: var(--color-text-soft); border-radius: var(--radius-full); font-size: 0.8rem; transition: all var(--transition-fast); }
        .sidebar-tags .tag:hover { background: var(--color-primary); color: #fff; }
        .sidebar-cta-box { background: linear-gradient(135deg, var(--color-primary) 0%, #1e3a5f 100%); color: #fff; border-radius: var(--radius-lg); padding: var(--space-xl); text-align: center; border: none; }
        .sidebar-cta-box h3 { color: #fff; font-size: 1.05rem; border: none; margin-bottom: var(--space-sm); padding: 0; }
        .sidebar-cta-box p { font-size: 0.85rem; opacity: 0.85; margin-bottom: var(--space-lg); }
        .sidebar-cta-btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.6rem 1.5rem; background: var(--color-accent); color: var(--color-primary); font-weight: 700; border-radius: var(--radius-full); font-size: 0.9rem; transition: all var(--transition-fast); }
        .sidebar-cta-btn:hover { background: #fff; color: var(--color-primary); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); }

        /* ========== RELATED POSTS ========== */
        .related-section { background: var(--color-bg-alt); padding: var(--space-3xl) 0; }
        .related-section .section-title { text-align: center; margin-bottom: var(--space-2xl); }
        .related-section .section-title h2 { font-size: 1.6rem; }
        .related-section .section-title .title-accent { display: block; width: 50px; height: 3px; background: var(--color-accent); margin: 0.6rem auto 0; border-radius: var(--radius-full); }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-xl); }
        .related-card { background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--color-border-light); transition: all var(--transition-base); }
        .related-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
        .related-card-img { aspect-ratio: 16/10; overflow: hidden; }
        .related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
        .related-card:hover .related-card-img img { transform: scale(1.05); }
        .related-card-body { padding: var(--space-lg); }
        .related-card-tag { font-size: 0.75rem; color: var(--color-highlight); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 0.3rem; }
        .related-card h4 { font-size: 1rem; margin-bottom: 0.4rem; line-height: 1.4; }
        .related-card h4 a { color: var(--color-primary); transition: color var(--transition-fast); }
        .related-card h4 a:hover { color: var(--color-highlight); }
        .related-card .related-date { font-size: 0.78rem; color: var(--color-text-muted); }

        /* ========== CTA BANNER ========== */
        .cta-banner { background: linear-gradient(135deg, #f97316 0%, #ea580c 40%, #c2410c 100%); color: #fff; padding: var(--space-3xl) 0; text-align: center; position: relative; overflow: hidden; }
        .cta-banner::before { content: ''; position: absolute; top: -50px; left: -50px; width: 200px; height: 200px; background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%); border-radius: 50%; }
        .cta-banner::after { content: ''; position: absolute; bottom: -40px; right: -40px; width: 180px; height: 180px; background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%); border-radius: 50%; }
        .cta-banner .container { position: relative; z-index: 2; }
        .cta-banner h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); color: #fff; margin-bottom: var(--space-sm); }
        .cta-banner p { font-size: 1.05rem; opacity: 0.9; margin-bottom: var(--space-xl); max-width: 550px; margin-left: auto; margin-right: auto; }
        .cta-banner .btn-group { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }
        .btn-cta-primary { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.85rem 2rem; background: #fff; color: var(--color-cta); font-weight: 700; font-size: 1rem; border-radius: var(--radius-full); transition: all var(--transition-fast); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }
        .btn-cta-primary:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.25); }
        .btn-cta-outline { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.85rem 2rem; background: transparent; color: #fff; font-weight: 600; font-size: 1rem; border: 2px solid rgba(255,255,255,0.5); border-radius: var(--radius-full); transition: all var(--transition-fast); }
        .btn-cta-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-2px); }

        /* ========== NOT FOUND ========== */
        .not-found-section { text-align: center; padding: var(--space-4xl) 0; }
        .not-found-icon { font-size: 5rem; color: var(--color-text-muted); margin-bottom: var(--space-lg); }
        .not-found-section h2 { font-size: 1.6rem; margin-bottom: var(--space-md); }
        .not-found-section p { color: var(--color-text-soft); margin-bottom: var(--space-xl); }
        .btn-back-home { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.75rem 2rem; background: var(--color-primary); color: #fff; font-weight: 600; border-radius: var(--radius-full); transition: all var(--transition-fast); }
        .btn-back-home:hover { background: var(--color-highlight); transform: translateY(-2px); box-shadow: var(--shadow-lg); color: #fff; }

        /* ========== FOOTER ========== */
        .site-footer { background: var(--color-primary); color: #cbd5e1; padding: var(--space-3xl) 0 var(--space-xl); }
        .footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: var(--space-2xl); margin-bottom: var(--space-2xl); }
        .footer-brand-name { font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: var(--space-sm); }
        .footer-desc { font-size: 0.88rem; line-height: 1.7; opacity: 0.8; max-width: 340px; }
        .footer-col h4 { font-size: 0.95rem; color: #fff; margin-bottom: var(--space-md); font-weight: 600; }
        .footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }
        .footer-col ul li a, .footer-col ul li span { font-size: 0.88rem; color: #cbd5e1; transition: color var(--transition-fast); display: inline-flex; align-items: center; gap: 0.4rem; }
        .footer-col ul li a:hover { color: var(--color-accent); }
        .footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-sm); padding-top: var(--space-lg); border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.8rem; opacity: 0.7; }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr 280px; gap: var(--space-xl); }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .header-actions .btn-subscribe span { display: none; }
            .btn-subscribe { padding: 0.5rem 0.8rem; font-size: 0.85rem; }
        }
        @media (max-width: 768px) {
            .main-nav { display: none; }
            .mobile-toggle { display: flex; }
            .header-actions .btn-subscribe { display: none; }
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { position: static; }
            .related-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
            .footer-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
            .article-banner { padding: var(--space-2xl) 0 var(--space-xl); }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
            .section { padding: var(--space-2xl) 0; }
            .cta-banner { padding: var(--space-2xl) 0; }
            .container { padding: 0 var(--space-md); }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
            .article-banner h1 { font-size: 1.35rem; }
            .article-body { font-size: 0.98rem; }
            .header-brand-name { font-size: 1rem; }
            .header-logo-icon { width: 32px; height: 32px; font-size: 0.9rem; }
            .related-card-body { padding: var(--space-md); }
            .sidebar-card { padding: var(--space-md); }
            .cta-banner .btn-group { flex-direction: column; align-items: center; }
            .btn-cta-primary, .btn-cta-outline { width: 100%; justify-content: center; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

/* roulang page: category1 */
:root {
            --color-primary: #1a1a2e;
            --color-primary-light: #16213e;
            --color-accent: #e63946;
            --color-accent-hover: #c1121f;
            --color-accent-light: #ff6b6b;
            --color-gold: #f0a500;
            --color-bg: #f5f6fa;
            --color-bg-alt: #eef0f5;
            --color-surface: #ffffff;
            --color-text: #1e1e2a;
            --color-text-secondary: #5a5a72;
            --color-text-muted: #8e8ea0;
            --color-border: #e2e4ea;
            --color-border-light: #eef0f5;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-xs: 0 1px 3px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 12px 48px rgba(0,0,0,0.12);
            --shadow-accent: 0 4px 20px rgba(230,57,70,0.25);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --header-height: 124px;
            --nav-sticky-height: 60px;
            --container-max: 1200px;
            --container-narrow: 900px;
            --section-gap: 60px;
            --section-gap-sm: 40px;
        }

        *, *::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: 1.65;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        input {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

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

        .container-narrow {
            max-width: var(--container-narrow);
        }

        /* ========== 顶部品牌行 ========== */
        .top-bar {
            background: var(--color-primary);
            color: #ffffff;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .top-bar-left {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .top-bar-left span {
            opacity: 0.85;
        }
        .top-bar-left i {
            margin-right: 4px;
            font-size: 11px;
        }
        .top-bar-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .top-bar-right a {
            color: #ffffff;
            opacity: 0.8;
            font-size: 13px;
            transition: opacity var(--transition-fast);
        }
        .top-bar-right a:hover {
            opacity: 1;
        }
        .top-bar .hot-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--color-accent);
            color: #fff;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 600;
            animation: pulse-tag 2s ease-in-out infinite;
        }
        @keyframes pulse-tag {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }

        /* ========== 主导航 ========== */
        .site-header {
            background: var(--color-surface);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 24px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 900;
            font-size: 18px;
            flex-shrink: 0;
        }
        .logo-text {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 18px;
            color: var(--color-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .main-nav li a {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .main-nav li a:hover {
            color: var(--color-accent);
            background: rgba(230,57,70,0.05);
        }
        .main-nav li a.active {
            color: var(--color-accent);
            font-weight: 700;
            background: rgba(230,57,70,0.08);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-search-toggle {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--color-bg);
            color: var(--color-text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            font-size: 15px;
        }
        .btn-search-toggle:hover {
            background: var(--color-accent);
            color: #fff;
        }
        .btn-subscribe-nav {
            padding: 9px 20px;
            border-radius: var(--radius-full);
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: var(--shadow-accent);
        }
        .btn-subscribe-nav:hover {
            background: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(230,57,70,0.35);
        }
        .mobile-menu-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: var(--color-bg);
            color: var(--color-text);
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        /* ========== 搜索下拉 ========== */
        .search-dropdown {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            padding: 20px 0;
            box-shadow: var(--shadow-lg);
            z-index: 999;
        }
        .search-dropdown.active {
            display: block;
        }
        .search-form-inline {
            display: flex;
            gap: 10px;
        }
        .search-form-inline input {
            flex: 1;
            padding: 12px 18px;
            border-radius: var(--radius-full);
            border: 2px solid var(--color-border);
            font-size: 15px;
            transition: border-color var(--transition-fast);
            background: var(--color-bg);
        }
        .search-form-inline input:focus {
            border-color: var(--color-accent);
            background: var(--color-surface);
        }
        .search-form-inline button {
            padding: 12px 24px;
            border-radius: var(--radius-full);
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            transition: all var(--transition-fast);
        }
        .search-form-inline button:hover {
            background: var(--color-accent-hover);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            padding: 10px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .separator {
            font-size: 10px;
            color: var(--color-text-muted);
        }
        .breadcrumb .current {
            color: var(--color-accent);
            font-weight: 600;
        }

        /* ========== 分类Banner ========== */
        .category-banner {
            position: relative;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, #1a2744 100%);
            padding: 50px 0;
            overflow: hidden;
            min-height: 220px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(230,57,70,0.25) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .banner-content {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }
        .banner-icon-wrap {
            width: 72px;
            height: 72px;
            border-radius: var(--radius-lg);
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: #fff;
            flex-shrink: 0;
            border: 1px solid rgba(255,255,255,0.18);
        }
        .banner-text h1 {
            font-family: var(--font-display);
            font-size: 34px;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: -0.5px;
            margin-bottom: 8px;
        }
        .banner-text p {
            font-size: 15px;
            color: rgba(255,255,255,0.78);
            max-width: 550px;
            line-height: 1.6;
        }
        .banner-stats {
            display: flex;
            gap: 24px;
            margin-top: 14px;
            flex-wrap: wrap;
        }
        .banner-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255,255,255,0.9);
            font-size: 14px;
        }
        .banner-stat-item .stat-num {
            font-weight: 800;
            font-size: 20px;
            color: var(--color-gold);
        }

        /* ========== 主内容区 ========== */
        .main-content {
            padding: var(--section-gap) 0;
        }
        .content-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 36px;
            align-items: start;
        }

        /* ========== 标签筛选栏 ========== */
        .tag-filter-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 28px;
            padding: 6px;
            background: var(--color-surface);
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-xs);
        }
        .tag-filter-label {
            font-weight: 700;
            font-size: 13px;
            color: var(--color-text-muted);
            padding: 0 8px 0 12px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .tag-filter-btn {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .tag-filter-btn:hover {
            color: var(--color-accent);
            background: rgba(230,57,70,0.06);
        }
        .tag-filter-btn.active {
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            box-shadow: var(--shadow-accent);
        }

        /* ========== 文章列表 ========== */
        .articles-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .article-card {
            display: flex;
            gap: 18px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 16px;
            box-shadow: var(--shadow-xs);
            transition: all var(--transition-base);
            border: 1px solid transparent;
            cursor: pointer;
            align-items: flex-start;
        }
        .article-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateY(-2px);
        }
        .article-card-img {
            width: 200px;
            min-width: 200px;
            height: 140px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            position: relative;
            background: var(--color-bg-alt);
        }
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-card-img img {
            transform: scale(1.06);
        }
        .article-card-img .card-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--color-accent);
            color: #fff;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 700;
            z-index: 1;
        }
        .article-card-img .card-tag.hot-tag {
            background: var(--color-gold);
            color: #1a1a2e;
        }
        .article-card-body {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .article-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }
        .article-card:hover .article-card-body h3 {
            color: var(--color-accent);
        }
        .article-card-body .card-excerpt {
            font-size: 13.5px;
            color: var(--color-text-secondary);
            line-height: 1.55;
            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: 12px;
            color: var(--color-text-muted);
            margin-top: auto;
            flex-wrap: wrap;
        }
        .article-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .article-card-meta .meta-hot {
            color: var(--color-accent);
            font-weight: 600;
        }

        /* ========== 加载更多 ========== */
        .load-more-wrap {
            text-align: center;
            margin-top: 24px;
        }
        .btn-load-more {
            padding: 13px 40px;
            border-radius: var(--radius-full);
            background: var(--color-surface);
            color: var(--color-text);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid var(--color-border);
            transition: all var(--transition-base);
        }
        .btn-load-more:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            box-shadow: var(--shadow-sm);
        }
        .btn-load-more i {
            margin-left: 6px;
        }

        /* ========== 侧边栏 ========== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
        }
        .sidebar-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i {
            color: var(--color-accent);
        }
        .hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .hot-list li:last-child {
            border-bottom: none;
        }
        .hot-list li:hover {
            padding-left: 4px;
        }
        .hot-rank {
            width: 26px;
            height: 26px;
            border-radius: 6px;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 13px;
            color: var(--color-text-muted);
            flex-shrink: 0;
        }
        .hot-list li:nth-child(1) .hot-rank,
        .hot-list li:nth-child(2) .hot-rank,
        .hot-list li:nth-child(3) .hot-rank {
            background: var(--color-accent);
            color: #fff;
        }
        .hot-list .hot-info {
            flex: 1;
            min-width: 0;
        }
        .hot-list .hot-info .hot-title {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .hot-list .hot-info .hot-views {
            font-size: 11px;
            color: var(--color-text-muted);
            margin-top: 3px;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 500;
            background: var(--color-bg);
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
        }
        .tag-cloud a:hover {
            background: var(--color-accent);
            color: #fff;
        }

        /* ========== 数据统计区块 ========== */
        .stats-section {
            padding: var(--section-gap-sm) 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-card {
            padding: 24px 16px;
            border-radius: var(--radius-lg);
            background: var(--color-bg);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .stat-icon {
            font-size: 32px;
            color: var(--color-accent);
            margin-bottom: 10px;
        }
        .stat-card .stat-value {
            font-size: 32px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -1px;
        }
        .stat-card .stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* ========== CTA区块 ========== */
        .cta-section {
            padding: var(--section-gap) 0;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }
        .cta-inner h3 {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-inner p {
            font-size: 15px;
            color: rgba(255,255,255,0.78);
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
        }
        .cta-form input {
            flex: 1;
            padding: 14px 20px;
            border-radius: var(--radius-full);
            border: 2px solid rgba(255,255,255,0.25);
            font-size: 15px;
            background: rgba(255,255,255,0.1);
            color: #fff;
            backdrop-filter: blur(4px);
            transition: all var(--transition-fast);
        }
        .cta-form input::placeholder {
            color: rgba(255,255,255,0.5);
        }
        .cta-form input:focus {
            border-color: #fff;
            background: rgba(255,255,255,0.18);
        }
        .cta-form button {
            padding: 14px 28px;
            border-radius: var(--radius-full);
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            white-space: nowrap;
            box-shadow: var(--shadow-accent);
        }
        .cta-form button:hover {
            background: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230,57,70,0.4);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--section-gap) 0;
            background: var(--color-bg);
        }
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title h2 {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .section-title p {
            font-size: 15px;
            color: var(--color-text-muted);
            max-width: 500px;
            margin: 0 auto;
        }
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: none;
            font-weight: 700;
            font-size: 15px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question i {
            font-size: 13px;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255,255,255,0.8);
            padding: 48px 0 24px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand-name {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            opacity: 0.75;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a,
        .footer-col ul li span {
            color: rgba(255,255,255,0.7);
            font-size: 13px;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 18px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            opacity: 0.7;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .content-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .article-card-img {
                width: 160px;
                min-width: 160px;
                height: 120px;
            }
            .banner-text h1 {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 54px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-surface);
                flex-direction: column;
                padding: 12px 16px;
                box-shadow: var(--shadow-lg);
                border-top: 1px solid var(--color-border-light);
                gap: 2px;
                z-index: 999;
            }
            .main-nav.mobile-open {
                display: flex;
            }
            .main-nav li a {
                padding: 12px 16px;
                border-radius: var(--radius-md);
                font-size: 15px;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .btn-subscribe-nav {
                font-size: 13px;
                padding: 7px 14px;
            }
            .top-bar {
                font-size: 11px;
                padding: 6px 0;
            }
            .top-bar .hot-tag {
                font-size: 10px;
                padding: 2px 8px;
            }
            .category-banner {
                padding: 36px 0;
                min-height: 180px;
            }
            .banner-text h1 {
                font-size: 24px;
            }
            .banner-text p {
                font-size: 13px;
            }
            .banner-icon-wrap {
                width: 52px;
                height: 52px;
                font-size: 24px;
            }
            .article-card {
                flex-direction: column;
                gap: 12px;
                padding: 12px;
            }
            .article-card-img {
                width: 100%;
                min-width: 100%;
                height: 180px;
            }
            .article-card-body h3 {
                font-size: 15px;
            }
            .tag-filter-bar {
                gap: 4px;
                border-radius: var(--radius-lg);
                padding: 8px;
            }
            .tag-filter-btn {
                padding: 6px 12px;
                font-size: 12px;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card .stat-value {
                font-size: 24px;
            }
            .cta-inner h3 {
                font-size: 24px;
            }
            .cta-form {
                flex-direction: column;
                gap: 10px;
            }
            .cta-form input,
            .cta-form button {
                width: 100%;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-title h2 {
                font-size: 24px;
            }
            .search-dropdown .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .logo-text {
                font-size: 15px;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            .category-banner {
                padding: 28px 0;
                min-height: 150px;
            }
            .banner-content {
                gap: 16px;
            }
            .banner-text h1 {
                font-size: 21px;
            }
            .banner-stats {
                gap: 12px;
            }
            .banner-stat-item {
                font-size: 12px;
            }
            .banner-stat-item .stat-num {
                font-size: 16px;
            }
            .article-card-img {
                height: 150px;
            }
            .article-card-body h3 {
                font-size: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 16px 10px;
            }
            .stat-card .stat-value {
                font-size: 22px;
            }
            .stat-card .stat-icon {
                font-size: 24px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px;
                font-size: 13px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .btn-load-more {
                padding: 11px 28px;
                font-size: 14px;
            }
            .section-title h2 {
                font-size: 21px;
            }
            .cta-inner h3 {
                font-size: 21px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .top-bar-left {
                gap: 8px;
            }
            .top-bar-right {
                gap: 8px;
            }
        }