/* roulang page: index */
:root {
            --color-primary: #0a1e5e;
            --color-primary-light: #132d7a;
            --color-primary-lighter: #1a3a94;
            --color-accent: #f59e0b;
            --color-accent-hover: #d97706;
            --color-accent-light: #fef3c7;
            --color-blue-bright: #3b82f6;
            --color-blue-soft: #eff6ff;
            --color-bg-light: #f8fafc;
            --color-bg-white: #ffffff;
            --color-bg-dark: #0f172a;
            --color-bg-section: #f1f5f9;
            --color-text: #1e293b;
            --color-text-heading: #0f172a;
            --color-text-muted: #64748b;
            --color-text-light: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --color-success: #10b981;
            --color-white: #ffffff;
            --radius-xl: 16px;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 56px rgba(0, 0, 0, 0.14);
            --shadow-xl: 0 24px 72px rgba(0, 0, 0, 0.18);
            --transition-fast: 0.18s ease;
            --transition: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1220px;
            --header-height: 72px;
        }

        *,
        *::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-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg-white);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            outline: none;
            transition: all var(--transition);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-blue-bright);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }

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

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

        .logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: opacity var(--transition-fast);
        }

        .logo:hover {
            opacity: 0.85;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-lighter));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

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

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius-md);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

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

        .nav-links a.active {
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(10, 30, 94, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 24px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.93rem;
            background: var(--color-accent);
            color: #1a1a1a;
            margin-left: 12px;
            transition: all var(--transition);
            box-shadow: 0 2px 10px rgba(245, 158, 11, 0.3);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--color-accent-hover);
            color: #fff;
            box-shadow: 0 6px 22px rgba(245, 158, 11, 0.45);
            transform: translateY(-1px);
        }

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

        .mobile-menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--color-primary);
            border-radius: 3px;
            transition: all var(--transition);
        }

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

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

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        /* Hero */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #060e2b 0%, #0a1e5e 35%, #132d7a 70%, #0f2648 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 100px 0 110px;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.18) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(245, 158, 11, 0.12) 0%, transparent 55%);
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-block;
            padding: 7px 20px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            font-size: 0.9rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.04em;
            backdrop-filter: blur(6px);
        }

        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

        .hero h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }

        .hero-desc {
            font-size: 1.2rem;
            max-width: 680px;
            margin: 0 auto 36px;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.8;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #1a1a1a;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
        }

        .btn-primary:hover {
            background: var(--color-accent-hover);
            color: #fff;
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.55);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 0.88rem;
        }

        .btn-white {
            background: #fff;
            color: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }

        .btn-white:hover {
            box-shadow: var(--shadow);
            transform: translateY(-1px);
        }

        /* Sections */
        .section {
            padding: 80px 0;
        }

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

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

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-blue-bright);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

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

        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }

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

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-number .plus {
            color: var(--color-accent);
            font-size: 1.8rem;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        /* Intro block */
        .intro-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .intro-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
        }

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

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

        .intro-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-text-heading);
            margin-bottom: 18px;
        }

        .intro-content p {
            color: var(--color-text-muted);
            margin-bottom: 14px;
            line-height: 1.8;
        }

        .intro-features {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 20px;
        }

        .intro-feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
            color: var(--color-text);
        }

        .intro-feature-item .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            flex-shrink: 0;
        }

        /* Category entry */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }

        .category-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .category-card-image {
            height: 200px;
            overflow: hidden;
        }

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

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

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

        .category-card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            background: var(--color-blue-soft);
            color: var(--color-blue-bright);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .category-card h4 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-heading);
        }

        .category-card p {
            color: var(--color-text-muted);
            font-size: 0.93rem;
            line-height: 1.7;
            flex: 1;
        }

        .category-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
        }

        .category-card-link:hover {
            gap: 10px;
            color: var(--color-blue-bright);
        }

        /* News list */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .news-card-image {
            height: 180px;
            overflow: hidden;
        }

        .news-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .news-card-meta {
            display: flex;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-bottom: 8px;
        }

        .news-card h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.5;
            color: var(--color-text-heading);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-link {
            margin-top: 12px;
            font-weight: 600;
            color: var(--color-blue-bright);
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
        }

        .news-card-link:hover {
            gap: 8px;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 20px;
            color: var(--color-text-muted);
            font-size: 1.05rem;
        }

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

        .advantage-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }

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

        .advantage-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-md);
            background: var(--color-blue-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: var(--color-primary);
            transition: all var(--transition);
        }

        .advantage-card:hover .advantage-icon {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.08);
        }

        .advantage-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-heading);
        }

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

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

        .process-item {
            text-align: center;
            position: relative;
        }

        .process-step {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 16px rgba(10, 30, 94, 0.35);
        }

        .process-item h4 {
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--color-text-heading);
        }

        .process-item p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .section-dark .process-item h4 {
            color: #fff;
        }

        .section-dark .process-item p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition);
        }

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.02rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-text-heading);
            user-select: none;
            transition: color var(--transition-fast);
        }

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

        .faq-arrow {
            transition: transform var(--transition);
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition), padding var(--transition);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--color-text-muted);
            line-height: 1.7;
            font-size: 0.93rem;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0d2969 50%, var(--color-primary-light) 100%);
            padding: 72px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 40% 60%, rgba(245, 158, 11, 0.15) 0%, transparent 55%);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h3 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 32px;
        }

        .cta-section .btn {
            font-size: 1.05rem;
            padding: 16px 40px;
        }

        /* Footer */
        .site-footer {
            background: #0b1529;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 9px;
        }

        .footer-col ul a {
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            display: inline-block;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 22px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* Mobile nav panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 20px;
            padding: 40px;
        }

        .mobile-nav-panel.open {
            display: flex;
        }

        .mobile-nav-panel a {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text-heading);
            padding: 12px 24px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: var(--color-primary);
            color: #fff;
        }

        .mobile-nav-panel .nav-cta {
            margin-left: 0;
            margin-top: 8px;
            font-size: 1rem;
            padding: 14px 32px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            .hero {
                padding: 72px 0 80px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .intro-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-image {
                max-width: 500px;
                margin: 0 auto;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .category-grid {
                grid-template-columns: 1fr;
                max-width: 500px;
                margin: 0 auto;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
                padding: 0 10px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero {
                padding: 56px 0 60px;
            }
            .section {
                padding: 56px 0;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 2.2rem;
            }
            .news-grid {
                grid-template-columns: 1fr;
                max-width: 450px;
                margin: 0 auto;
            }
            .advantages-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
                margin: 0 auto;
            }
            .process-list {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .intro-content h3 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .category-grid {
                max-width: 100%;
            }
            .category-card-image {
                height: 160px;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 16px 18px;
            }
            .faq-answer-inner {
                padding: 0 18px 16px;
            }
            .cta-section h3 {
                font-size: 1.5rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.93rem;
            }
            .logo {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.65rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero {
                padding: 44px 0 48px;
            }
            .section {
                padding: 44px 0;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .process-list {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .category-card-body {
                padding: 18px;
            }
            .news-card-body {
                padding: 16px;
            }
            .news-card-image {
                height: 150px;
            }
            .btn {
                padding: 10px 22px;
                font-size: 0.9rem;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #1a56db;
            --primary-dark: #1240a8;
            --primary-light: #e8f0fe;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg: #ffffff;
            --bg-soft: #f8fafc;
            --bg-deep: #0f172a;
            --text: #1e293b;
            --text-soft: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 68px;
        }

        /* ============ Reset & Base ============ */
        *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
        body{font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);overflow-x:hidden;min-height:100vh}
        a{text-decoration:none;color:inherit;transition:color var(--transition)}
        img{max-width:100%;height:auto;display:block}
        button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:inherit}
        ul,ol{list-style:none}
        input,select,textarea{font-family:inherit;font-size:inherit}
        :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

        /* ============ 容器 ============ */
        .container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
        @media(max-width:768px){.container{padding:0 16px}}

        /* ============ Header ============ */
        .site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:var(--shadow-xs);height:var(--header-height)}
        .header-inner{max-width:var(--max-width);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:100%}
        .logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.25rem;color:var(--text);letter-spacing:-0.01em;flex-shrink:0}
        .logo-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;background:linear-gradient(135deg,var(--primary),#3b82f6);color:#fff;border-radius:var(--radius-sm);font-size:1.1rem;font-weight:800;flex-shrink:0}
        .logo:hover{color:var(--primary)}
        .logo:hover .logo-icon{transform:scale(1.05);transition:transform var(--transition)}
        .main-nav{display:flex;align-items:center;gap:28px}
        .nav-links{display:flex;align-items:center;gap:6px}
        .nav-links a{display:inline-flex;align-items:center;padding:8px 16px;border-radius:var(--radius-sm);font-weight:500;font-size:0.95rem;color:var(--text-soft);transition:all var(--transition);white-space:nowrap}
        .nav-links a:hover{color:var(--primary);background:var(--primary-light)}
        .nav-links a.active{color:var(--primary);background:var(--primary-light);font-weight:600}
        .nav-cta{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;background:var(--primary);color:#fff!important;border-radius:var(--radius);font-weight:600;font-size:0.9rem;transition:all var(--transition);white-space:nowrap;box-shadow:0 2px 8px rgba(26,86,219,0.25)}
        .nav-cta:hover{background:var(--primary-dark);box-shadow:0 4px 16px rgba(26,86,219,0.35);transform:translateY(-1px)}
        .nav-cta:active{transform:translateY(0)}
        .mobile-menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px;border-radius:var(--radius-sm);transition:background var(--transition)}
        .mobile-menu-toggle:hover{background:var(--bg-soft)}
        .mobile-menu-toggle span{display:block;width:24px;height:2px;background:var(--text);border-radius:2px;transition:all var(--transition-slow)}
        .mobile-menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
        .mobile-menu-toggle.active span:nth-child(2){opacity:0}
        .mobile-menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
        .desktop-only{display:inline-flex}
        @media(max-width:1024px){.desktop-only{display:none!important}}
        @media(max-width:768px){
            .header-inner{padding:0 16px}
            .mobile-menu-toggle{display:flex}
            .nav-links{position:fixed;top:var(--header-height);left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(12px);flex-direction:column;padding:16px;gap:4px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);transform:translateY(-120%);opacity:0;pointer-events:none;transition:all var(--transition-slow);z-index:999}
            .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
            .nav-links a{width:100%;padding:12px 16px;font-size:1rem;justify-content:center}
        }

        /* ============ 分类Banner ============ */
        .category-banner{position:relative;background:linear-gradient(135deg,rgba(15,23,42,0.88),rgba(15,23,42,0.78)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:80px 0;text-align:center;color:#fff;overflow:hidden}
        .category-banner::after{content:'';position:absolute;bottom:0;left:0;right:0;height:60px;background:linear-gradient(transparent,var(--bg));pointer-events:none}
        .category-banner .container{position:relative;z-index:1}
        .category-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.25);border-radius:50px;font-size:0.85rem;font-weight:500;margin-bottom:20px;backdrop-filter:blur(8px);color:#e2e8f0}
        .category-badge svg{width:14px;height:14px;flex-shrink:0}
        .category-banner h1{font-size:2.8rem;font-weight:800;letter-spacing:-0.02em;margin-bottom:16px;line-height:1.2}
        .category-banner .banner-desc{font-size:1.15rem;color:#cbd5e1;max-width:640px;margin:0 auto 28px;line-height:1.7}
        .category-stats-row{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;margin-top:8px}
        .cat-stat-item{text-align:center;min-width:80px}
        .cat-stat-num{font-size:2rem;font-weight:800;color:var(--accent);line-height:1}
        .cat-stat-label{font-size:0.85rem;color:#94a3b8;margin-top:4px}
        @media(max-width:768px){
            .category-banner{padding:50px 0}
            .category-banner h1{font-size:2rem}
            .category-banner .banner-desc{font-size:1rem}
            .category-stats-row{gap:24px}
            .cat-stat-num{font-size:1.5rem}
        }
        @media(max-width:520px){
            .category-banner h1{font-size:1.6rem}
            .category-stats-row{gap:16px}
            .cat-stat-item{min-width:60px}
            .cat-stat-num{font-size:1.3rem}
            .cat-stat-label{font-size:0.75rem}
        }

        /* ============ 板块通用 ============ */
        .section{padding:64px 0}
        .section-soft{background:var(--bg-soft)}
        .section-deep{background:var(--bg-deep);color:#fff}
        .section-header{text-align:center;margin-bottom:48px}
        .section-label{display:inline-block;font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--primary);background:var(--primary-light);padding:5px 14px;border-radius:50px;margin-bottom:12px}
        .section-title{font-size:2rem;font-weight:800;letter-spacing:-0.01em;margin-bottom:12px;line-height:1.3}
        .section-subtitle{font-size:1.05rem;color:var(--text-soft);max-width:560px;margin:0 auto;line-height:1.6}
        .section-deep .section-title{color:#fff}
        .section-deep .section-subtitle{color:#94a3b8}
        @media(max-width:768px){
            .section{padding:44px 0}
            .section-title{font-size:1.5rem}
            .section-subtitle{font-size:0.95rem}
            .section-header{margin-bottom:32px}
        }

        /* ============ 赛事卡片网格 ============ */
        .events-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
        .event-card{background:var(--bg);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:all var(--transition-slow);border:1px solid var(--border-light);display:flex;flex-direction:column}
        .event-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--border)}
        .event-card-img-wrap{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--bg-soft)}
        .event-card-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}
        .event-card:hover .event-card-img-wrap img{transform:scale(1.04)}
        .event-card-tag{position:absolute;top:12px;left:12px;padding:4px 12px;background:var(--primary);color:#fff;font-size:0.78rem;font-weight:600;border-radius:50px;z-index:2}
        .event-card-body{padding:20px;flex:1;display:flex;flex-direction:column}
        .event-card-body h3{font-size:1.1rem;font-weight:700;line-height:1.4;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .event-card-body h3 a{color:var(--text);transition:color var(--transition)}
        .event-card-body h3 a:hover{color:var(--primary)}
        .event-card-desc{font-size:0.9rem;color:var(--text-soft);line-height:1.6;margin-bottom:16px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
        .event-card-meta{display:flex;align-items:center;justify-content:space-between;font-size:0.8rem;color:var(--text-light);padding-top:14px;border-top:1px solid var(--border-light)}
        .event-card-meta span{display:inline-flex;align-items:center;gap:4px}
        @media(max-width:1024px){.events-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:520px){.events-grid{grid-template-columns:1fr;gap:16px}}

        /* ============ 特色赛事 ============ */
        .featured-events{display:grid;grid-template-columns:1fr 1fr;gap:24px}
        .featured-main{grid-row:span 2;position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-soft);min-height:400px}
        .featured-main img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
        .featured-main-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,23,42,0.9) 0%,rgba(15,23,42,0.4) 50%,transparent 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:32px;z-index:2}
        .featured-main-overlay .tag{display:inline-block;padding:5px 14px;background:var(--accent);color:#1e293b;font-weight:700;font-size:0.8rem;border-radius:50px;margin-bottom:12px;width:fit-content}
        .featured-main-overlay h3{font-size:1.5rem;font-weight:800;color:#fff;margin-bottom:8px;line-height:1.3}
        .featured-main-overlay p{color:#cbd5e1;font-size:0.95rem;line-height:1.6;margin-bottom:16px}
        .featured-main-overlay .btn-outline-light{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border:1px solid rgba(255,255,255,0.5);color:#fff;border-radius:var(--radius);font-weight:600;font-size:0.9rem;transition:all var(--transition);width:fit-content}
        .featured-main-overlay .btn-outline-light:hover{background:rgba(255,255,255,0.12);border-color:#fff}
        .featured-side{display:flex;flex-direction:column;gap:16px}
        .featured-side-card{display:flex;gap:16px;background:var(--bg);border-radius:var(--radius);padding:16px;border:1px solid var(--border-light);transition:all var(--transition);cursor:pointer}
        .featured-side-card:hover{box-shadow:var(--shadow);border-color:var(--border);transform:translateX(2px)}
        .featured-side-card img{width:100px;height:70px;object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0}
        .featured-side-info{flex:1;min-width:0}
        .featured-side-info .tag-sm{display:inline-block;padding:3px 10px;background:var(--primary-light);color:var(--primary);font-size:0.72rem;font-weight:600;border-radius:50px;margin-bottom:6px}
        .featured-side-info h4{font-size:0.95rem;font-weight:700;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text)}
        .featured-side-info .meta{font-size:0.78rem;color:var(--text-light);margin-top:4px}
        @media(max-width:768px){
            .featured-events{grid-template-columns:1fr}
            .featured-main{grid-row:auto;min-height:280px}
            .featured-side{flex-direction:column}
            .featured-side-card img{width:80px;height:56px}
        }

        /* ============ 标签筛选区 ============ */
        .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
        .tag-pill{padding:10px 22px;border:1px solid var(--border);border-radius:50px;font-size:0.9rem;font-weight:500;color:var(--text-soft);transition:all var(--transition);cursor:pointer;background:var(--bg)}
        .tag-pill:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
        .tag-pill.active{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600}
        @media(max-width:520px){.tag-pill{padding:8px 16px;font-size:0.82rem;gap:6px}}

        /* ============ CTA板块 ============ */
        .cta-section{background:linear-gradient(135deg,var(--primary),#2563eb);padding:64px 0;text-align:center;color:#fff;position:relative;overflow:hidden}
        .cta-section::before{content:'';position:absolute;top:-60px;right:-80px;width:260px;height:260px;background:rgba(255,255,255,0.06);border-radius:50%;pointer-events:none}
        .cta-section::after{content:'';position:absolute;bottom:-40px;left:-60px;width:200px;height:200px;background:rgba(255,255,255,0.05);border-radius:50%;pointer-events:none}
        .cta-section .container{position:relative;z-index:1}
        .cta-section h2{font-size:2rem;font-weight:800;margin-bottom:12px;letter-spacing:-0.01em}
        .cta-section p{font-size:1.05rem;color:rgba(255,255,255,0.85);max-width:520px;margin:0 auto 28px;line-height:1.6}
        .btn-cta-lg{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;background:#fff;color:var(--primary);border-radius:var(--radius);font-weight:700;font-size:1rem;transition:all var(--transition);box-shadow:var(--shadow-lg)}
        .btn-cta-lg:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl);background:#f1f5f9}
        .btn-cta-lg:active{transform:translateY(0)}
        @media(max-width:768px){
            .cta-section{padding:44px 0}
            .cta-section h2{font-size:1.5rem}
            .cta-section p{font-size:0.95rem}
            .btn-cta-lg{padding:12px 24px;font-size:0.9rem}
        }

        /* ============ FAQ ============ */
        .faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
        .faq-item{background:var(--bg);border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden;transition:all var(--transition)}
        .faq-item:hover{border-color:var(--border);box-shadow:var(--shadow-sm)}
        .faq-question{width:100%;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;font-weight:600;font-size:1rem;color:var(--text);text-align:left;cursor:pointer;gap:16px;transition:color var(--transition)}
        .faq-question:hover{color:var(--primary)}
        .faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:var(--text-soft);transition:all var(--transition);font-weight:700}
        .faq-item.open .faq-icon{background:var(--primary);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;padding:0 24px 20px}
        .faq-answer p{color:var(--text-soft);font-size:0.95rem;line-height:1.7}
        @media(max-width:768px){
            .faq-question{padding:16px 18px;font-size:0.95rem}
            .faq-item.open .faq-answer{padding:0 18px 16px}
        }

        /* ============ Footer ============ */
        .site-footer{background:var(--bg-deep);color:#cbd5e1;padding:48px 0 24px}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:32px}
        .footer-logo{display:inline-block;font-size:1.2rem;font-weight:700;color:#fff;margin-bottom:12px}
        .footer-col p{font-size:0.9rem;line-height:1.7;color:#94a3b8}
        .footer-col h4{font-size:0.95rem;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:0.02em}
        .footer-col ul{display:flex;flex-direction:column;gap:8px}
        .footer-col ul li a{font-size:0.9rem;color:#94a3b8;transition:color var(--transition)}
        .footer-col ul li a:hover{color:#fff}
        .footer-bottom{padding-top:20px;border-top:1px solid rgba(255,255,255,0.1);text-align:center;font-size:0.82rem;color:#64748b}
        @media(max-width:768px){
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-col:first-child{grid-column:1/-1}
        }
        @media(max-width:520px){
            .footer-grid{grid-template-columns:1fr;gap:24px}
            .site-footer{padding:36px 0 20px}
        }

        /* ============ 通用组件 ============ */
        .btn-outline{display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border:2px solid var(--primary);color:var(--primary);border-radius:var(--radius);font-weight:600;font-size:0.9rem;transition:all var(--transition)}
        .btn-outline:hover{background:var(--primary);color:#fff}
        .btn-primary{display:inline-flex;align-items:center;gap:6px;padding:11px 24px;background:var(--primary);color:#fff;border-radius:var(--radius);font-weight:600;font-size:0.9rem;transition:all var(--transition);box-shadow:0 2px 8px rgba(26,86,219,0.2)}
        .btn-primary:hover{background:var(--primary-dark);box-shadow:0 4px 16px rgba(26,86,219,0.3);transform:translateY(-1px)}
        .text-center{text-align:center}
        .mt-8{margin-top:8px}
        .mt-16{margin-top:16px}
        .mt-24{margin-top:24px}
        .mt-32{margin-top:32px}
        .mb-24{margin-bottom:24px}
        .section-divider{width:50px;height:3px;background:var(--primary);border-radius:2px;margin:0 auto 20px}

/* roulang page: article */
:root {
            --color-primary: #0b162b;
            --color-primary-light: #152040;
            --color-primary-lighter: #1e2d54;
            --color-accent: #e8b850;
            --color-accent-light: #f0d078;
            --color-accent-hover: #d4a030;
            --color-accent-subtle: rgba(232, 184, 80, 0.12);
            --color-orange: #ff6b42;
            --color-orange-hover: #e55a32;
            --color-orange-subtle: rgba(255, 107, 66, 0.1);
            --color-bg: #f4f5f9;
            --color-bg-alt: #eaecf3;
            --color-card: #ffffff;
            --color-card-hover: #fafbfd;
            --color-text: #1a1b26;
            --color-text-secondary: #3a3d4a;
            --color-text-muted: #6b7280;
            --color-text-light: #9ca3af;
            --color-border: #e2e4ea;
            --color-border-light: #eef0f5;
            --color-success: #10b981;
            --color-tag-bg: #eef2ff;
            --color-tag-text: #3b4f8a;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 50%;
            --shadow-xs: 0 1px 4px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 56px rgba(0, 0, 0, 0.16);
            --shadow-accent: 0 6px 24px rgba(232, 184, 80, 0.25);
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --max-width: 1280px;
            --max-width-article: 820px;
            --header-height: 72px;
        }

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

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

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            height: var(--header-height);
            transition: box-shadow var(--transition);
        }

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

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }

        .logo:hover {
            opacity: 0.82;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: var(--color-accent);
            font-size: 1.15rem;
            font-weight: 900;
            letter-spacing: 0;
            box-shadow: 0 2px 10px rgba(11, 22, 43, 0.2);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            position: relative;
        }

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

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

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
            color: var(--color-primary);
            transition: all var(--transition);
            box-shadow: var(--shadow-xs);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            box-shadow: var(--shadow-accent);
            transform: translateY(-1px);
            color: var(--color-primary);
        }

        .nav-cta svg {
            transition: transform var(--transition-fast);
        }

        .nav-cta:hover svg {
            transform: translateX(3px);
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-xs);
            transition: background var(--transition-fast);
            z-index: 1001;
        }

        .mobile-menu-toggle:hover {
            background: var(--color-bg-alt);
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            border-radius: 3px;
            background: var(--color-primary);
            transition: all var(--transition);
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

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

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* Mobile nav panel */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 999;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

        .mobile-nav-panel.open {
            display: flex;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 14px 20px;
            border-radius: var(--radius);
            font-weight: 500;
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
        }

        .mobile-nav-panel a:hover {
            background: var(--color-accent-subtle);
            color: var(--color-primary);
        }

        .mobile-nav-panel a.active {
            background: var(--color-accent-subtle);
            color: var(--color-primary);
            font-weight: 600;
        }

        .mobile-nav-panel .mobile-cta {
            margin-top: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
            color: var(--color-primary);
            text-align: center;
            align-self: flex-start;
        }

        /* Main */
        .main-content {
            flex: 1;
        }

        /* Article Banner */
        .article-banner {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: flex-end;
            padding: 40px 0 0;
            background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-light) 60%, var(--color-primary-lighter) 100%);
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.28;
            z-index: 0;
        }

        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 22, 43, 0.55) 0%, rgba(11, 22, 43, 0.85) 70%, rgba(11, 22, 43, 0.96) 100%);
            z-index: 1;
        }

        .article-banner-inner {
            position: relative;
            z-index: 2;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px 40px;
            width: 100%;
        }

        .article-banner .category-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            background: rgba(232, 184, 80, 0.2);
            color: var(--color-accent-light);
            border: 1px solid rgba(232, 184, 80, 0.3);
            margin-bottom: 16px;
        }

        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: #ffffff;
            margin-bottom: 14px;
            max-width: 900px;
        }

        .article-banner .meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
        }

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

        .article-banner .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.4);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            background: var(--color-card);
            border-bottom: 1px solid var(--color-border-light);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

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

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

        .breadcrumb .sep {
            color: var(--color-text-light);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: var(--color-text-secondary);
            font-weight: 500;
            pointer-events: none;
        }

        /* Article body area */
        .article-body-section {
            padding: 48px 0 64px;
        }

        .article-layout {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 48px;
            align-items: start;
        }

        .article-main {
            min-width: 0;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }

        .article-featured-image {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 28px;
            box-shadow: var(--shadow);
        }

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

        .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--color-text-secondary);
        }

        .article-content h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 36px 0 16px;
            padding-top: 8px;
            letter-spacing: -0.01em;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 28px 0 12px;
        }

        .article-content p {
            margin-bottom: 18px;
        }

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

        .article-content blockquote {
            margin: 28px 0;
            padding: 20px 24px;
            border-left: 4px solid var(--color-accent);
            background: var(--color-accent-subtle);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--color-text-secondary);
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0;
            padding-left: 24px;
        }

        .article-content ul {
            list-style: disc;
        }

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

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

        .article-content a {
            color: var(--color-orange);
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color var(--transition-fast);
        }

        .article-content a:hover {
            color: var(--color-orange-hover);
        }

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

        .article-content code {
            background: var(--color-bg-alt);
            padding: 2px 8px;
            border-radius: var(--radius-xs);
            font-size: 0.9em;
            color: var(--color-primary-lighter);
            font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
        }

        .article-content pre {
            background: var(--color-primary);
            color: #e2e8f0;
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 24px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-content pre code {
            background: none;
            padding: 0;
            color: inherit;
        }

        .article-divider {
            border: none;
            height: 1px;
            background: var(--color-border-light);
            margin: 32px 0;
        }

        /* Article tags */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-light);
        }

        .article-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            transition: all var(--transition-fast);
        }

        .article-tag:hover {
            background: #dce4ff;
            color: #2a3d70;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 24px);
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

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

        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--color-accent-subtle);
            letter-spacing: -0.01em;
        }

        .sidebar-post-item {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            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: 80px;
            height: 60px;
            border-radius: var(--radius-xs);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }

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

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

        .sidebar-post-info h4 {
            font-size: 0.88rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
            transition: color var(--transition-fast);
        }

        .sidebar-post-item:hover h4 {
            color: var(--color-orange);
        }

        .sidebar-post-info .sp-date {
            font-size: 0.75rem;
            color: var(--color-text-light);
        }

        .sidebar-cta-card {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow);
        }

        .sidebar-cta-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
            border: none;
            padding: 0;
        }

        .sidebar-cta-card p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 18px;
            line-height: 1.5;
        }

        .sidebar-cta-card .btn-cta-sm {
            display: inline-block;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.88rem;
            background: var(--color-accent);
            color: var(--color-primary);
            transition: all var(--transition);
        }

        .sidebar-cta-card .btn-cta-sm:hover {
            box-shadow: var(--shadow-accent);
            transform: translateY(-2px);
        }

        /* Not found state */
        .not-found-card {
            text-align: center;
            padding: 60px 32px;
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            max-width: 600px;
            margin: 60px auto;
        }

        .not-found-card .nf-icon {
            font-size: 4rem;
            margin-bottom: 16px;
            opacity: 0.7;
        }

        .not-found-card h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

        .not-found-card p {
            color: var(--color-text-muted);
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .not-found-card .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--color-primary);
            color: #fff;
            transition: all var(--transition);
        }

        .not-found-card .btn-back:hover {
            background: var(--color-primary-light);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(160deg, var(--color-primary) 0%, #0f1f3d 50%, var(--color-primary-light) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.14;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
            color: var(--color-primary);
            transition: all var(--transition);
            box-shadow: var(--shadow-accent);
        }

        .btn-primary-lg:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-xl);
            color: var(--color-primary);
        }

        .btn-primary-lg svg {
            transition: transform var(--transition-fast);
        }

        .btn-primary-lg:hover svg {
            transform: translateX(4px);
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.78);
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 0.9fr 0.9fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-col p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-col ul a:hover {
            color: var(--color-accent-light);
        }

        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

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

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .sidebar-cta-card {
                grid-column: 1 / -1;
            }

            .article-banner h1 {
                font-size: 2rem;
            }

            .article-main {
                padding: 28px 24px;
            }

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .desktop-only {
                display: none;
            }

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

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .article-banner {
                min-height: 260px;
            }

            .article-banner h1 {
                font-size: 1.6rem;
            }

            .article-banner-inner {
                padding-bottom: 28px;
            }

            .article-main {
                padding: 20px 18px;
                border-radius: var(--radius);
            }

            .article-content {
                font-size: 0.98rem;
                line-height: 1.75;
            }

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

            .cta-section h2 {
                font-size: 1.55rem;
            }

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

            .container {
                padding: 0 16px;
            }

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

            .breadcrumb {
                padding: 0 16px;
            }

            .article-layout {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .article-banner {
                min-height: 220px;
            }

            .article-banner h1 {
                font-size: 1.35rem;
            }

            .article-banner .meta-row {
                font-size: 0.78rem;
                gap: 10px;
            }

            .article-main {
                padding: 16px 14px;
            }

            .article-content {
                font-size: 0.93rem;
            }

            .article-content h2 {
                font-size: 1.2rem;
            }

            .cta-section {
                padding: 44px 0;
            }

            .cta-section h2 {
                font-size: 1.3rem;
            }

            .btn-primary-lg {
                padding: 12px 26px;
                font-size: 0.9rem;
            }

            .not-found-card {
                padding: 40px 20px;
                margin: 40px 16px;
            }
        }