/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0b1a30;
            --primary-light: #132d4a;
            --primary-lighter: #1a3f62;
            --accent: #00b8d9;
            --accent-hover: #00a0c0;
            --accent-glow: rgba(0, 184, 217, 0.25);
            --accent-soft: #e6f7fb;
            --bg-body: #f5f7fb;
            --bg-card: #ffffff;
            --bg-dark: #0b1a30;
            --bg-section-alt: #edf2f7;
            --text-primary: #0b1a30;
            --text-body: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #a0aec0;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f0f2f5;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-glow: 0 0 30px rgba(0,184,217,0.15);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --container-max: 1240px;
            --header-height: 72px;
            --nav-top-height: 40px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; outline: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-primary); font-weight: 700; }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-section-alt); }
        .section-dark { background: var(--bg-dark); color: var(--text-white); }
        .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--text-white); }
        .section-title {
            font-size: 2rem;
            margin-bottom: 12px;
            text-align: center;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.7); }
        .text-accent { color: var(--accent); }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--text-white);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
            color: var(--text-white);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255,255,255,0.4);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--text-white);
            transform: translateY(-2px);
            color: var(--text-white);
        }
        .btn-outline-accent {
            background: transparent;
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-outline-accent:hover {
            background: var(--accent);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius-md); }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; border-radius: var(--radius-sm); }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--accent-soft);
            color: var(--accent-hover);
        }
        .badge-dark {
            background: rgba(255,255,255,0.12);
            color: var(--text-white);
        }
        .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 4px;
            font-size: 0.78rem;
            background: var(--bg-section-alt);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .tag:hover { background: var(--accent); color: var(--text-white); border-color: var(--accent); }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-img { transform: scale(1.03); }
        .card-body { padding: 20px 24px 24px; }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .card-meta i { margin-right: 4px; }

        /* ===== Header / Navigation ===== */
        .top-bar {
            background: var(--primary);
            color: rgba(255,255,255,0.8);
            font-size: 0.82rem;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .top-bar-links { display: flex; gap: 20px; }
        .top-bar-links a:hover { color: var(--accent); }
        .top-bar-date { color: rgba(255,255,255,0.5); }

        .header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }
        .header.scrolled { box-shadow: var(--shadow-md); }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--accent); font-size: 1.8rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover span { -webkit-text-fill-color: var(--accent); }

        .nav-main { display: flex; align-items: center; gap: 8px; }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: var(--accent); background: var(--accent-soft); }
        .nav-main a.active {
            color: var(--accent);
            background: var(--accent-soft);
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-section-alt);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid transparent;
            transition: var(--transition);
            margin-left: 12px;
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            background: var(--bg-card);
            box-shadow: 0 0 0 4px var(--accent-glow);
        }
        .nav-search input {
            background: none;
            border: none;
            padding: 8px 10px;
            font-size: 0.88rem;
            color: var(--text-body);
            width: 160px;
        }
        .nav-search input::placeholder { color: var(--text-light); }
        .nav-search button {
            color: var(--text-muted);
            font-size: 1rem;
            padding: 4px;
        }
        .nav-search button:hover { color: var(--accent); }

        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            padding: 8px;
            background: none;
            border: none;
        }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 2000;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
        }
        .mobile-nav.open { opacity: 1; pointer-events: auto; }
        .mobile-nav-inner {
            background: var(--bg-card);
            width: 85%;
            max-width: 380px;
            height: 100%;
            padding: 32px 24px;
            overflow-y: auto;
            transform: translateX(-100%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .mobile-nav.open .mobile-nav-inner { transform: translateX(0); }
        .mobile-nav-close {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin-bottom: 24px;
            display: block;
        }
        .mobile-nav a {
            display: block;
            padding: 14px 0;
            font-size: 1.05rem;
            font-weight: 600;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-body);
        }
        .mobile-nav a:hover { color: var(--accent); }
        .mobile-nav a.active { color: var(--accent); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,26,48,0.92) 0%, rgba(11,26,48,0.6) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0,184,217,0.15);
            color: var(--accent);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(0,184,217,0.2);
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            line-height: 1.15;
            letter-spacing: -1px;
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent), #7dd3fc);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.75);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            color: var(--text-white);
        }
        .hero-stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.6);
            margin-top: 4px;
        }

        /* ===== Featured Categories ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: var(--accent);
        }
        .category-card-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 1.8rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .category-card:hover .category-card-icon { background: var(--accent); color: var(--text-white); }
        .category-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .category-card p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 16px; }

        /* ===== Content / News List ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .news-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        .news-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-card:hover .news-card-img-wrap img { transform: scale(1.05); }
        .news-card-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--text-white);
            padding: 2px 12px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .news-card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }
        .news-card-meta i { margin-right: 4px; }

        .empty-list {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .empty-list i { font-size: 2.4rem; color: var(--text-light); margin-bottom: 12px; display: block; }

        /* ===== Features / Data Section ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .feature-card-icon {
            font-size: 2.4rem;
            color: var(--accent);
            margin-bottom: 16px;
        }
        .feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
        .feature-card p { font-size: 0.9rem; color: var(--text-muted); }

        /* ===== How It Works ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            display: block;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--text-white);
            font-size: 1.3rem;
            font-weight: 800;
            line-height: 52px;
            margin: 0 auto 16px;
            box-shadow: 0 0 0 4px var(--accent-soft);
        }
        .step-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
        .step-card p { font-size: 0.88rem; color: var(--text-muted); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--accent); }
        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            border: none;
            gap: 16px;
        }
        .faq-question i { color: var(--accent); transition: var(--transition); font-size: 1.1rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 64px 24px;
        }
        .cta-content h2 {
            font-size: 2.2rem;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-content p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.7);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: var(--text-white); margin-bottom: 12px; }
        .footer-brand .logo span { -webkit-text-fill-color: var(--text-white); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
        .footer h4 {
            color: var(--text-white);
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer-links a {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            transition: var(--transition);
        }
        .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: var(--text-white); }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.84rem;
            color: rgba(255,255,255,0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 2.6rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-title { font-size: 1.6rem; }
            .section-subtitle { font-size: 0.95rem; margin-bottom: 32px; }

            .top-bar { display: none; }
            .nav-main { display: none; }
            .nav-search { display: none; }
            .nav-toggle { display: block; }
            .mobile-nav { display: block; }

            .header .container { height: 60px; }
            .logo { font-size: 1.2rem; }
            .logo i { font-size: 1.4rem; }

            .hero { min-height: 480px; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; margin-top: 36px; }
            .hero-stat-num { font-size: 1.6rem; }

            .news-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr 1fr; }
            .features-grid { grid-template-columns: 1fr 1fr; }
            .steps-grid { grid-template-columns: 1fr 1fr; }

            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .hero h1 { font-size: 1.6rem; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .category-grid { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .hero-stats { flex-direction: column; gap: 16px; }
        }

        /* ===== Misc Utilities ===== */
        .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-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-12 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .flex-wrap { flex-wrap: wrap; }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-body); }
        ::-webkit-scrollbar-thumb { background: var(--text-light); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

        /* ===== Selection ===== */
        ::selection { background: var(--accent); color: var(--text-white); }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #0f3a8e;
            --primary-bg: #eff6ff;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #8b5cf6;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f172a;
            --bg-card: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #f1f5f9;
            --border-light: #e2e8f0;
            --border-color: #cbd5e1;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 36px rgba(0,0,0,0.12);
            --shadow-xl: 0 24px 48px rgba(0,0,0,0.16);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        button { cursor: pointer; font-family: inherit; }
        input, textarea, select { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section { padding: 72px 0; }
        .section-title {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .text-center { text-align: center; }

        /* ===== Header / Nav ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
        }
        .logo i { font-size: 1.6rem; color: var(--secondary); }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: var(--primary); background: var(--primary-bg); }
        .nav-main a.active {
            color: var(--primary);
            background: var(--primary-bg);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 4px 4px 4px 16px;
            margin-left: 12px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search:focus-within { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            padding: 6px 0;
            width: 160px;
            font-size: 0.9rem;
            color: var(--text-primary);
        }
        .nav-search input::placeholder { color: var(--text-muted); }
        .nav-search button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 999px;
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition);
        }
        .nav-search button:hover { background: var(--primary-dark); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-primary); padding: 8px; }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 56px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1e293b 100%);
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }
        .article-hero .container { position: relative; z-index: 1; }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
            margin-bottom: 20px;
        }
        .article-hero .breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb i { font-size: 0.65rem; }
        .article-hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            margin-bottom: 16px;
        }
        .article-hero .meta .badge {
            background: var(--secondary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .article-hero .meta .date {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero h1 {
            font-size: 2.4rem;
            color: #fff;
            max-width: 840px;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .article-hero .desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.75);
            max-width: 720px;
            line-height: 1.6;
        }

        /* ===== Article Body ===== */
        .article-body-wrap { padding: 48px 0 72px; }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-main {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border-light);
        }
        .article-main .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-main .content p { margin-bottom: 1.2em; }
        .article-main .content img { border-radius: var(--radius-md); margin: 28px 0; width: 100%; }
        .article-main .content h2, .article-main .content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            font-weight: 700;
        }
        .article-main .content h2 { font-size: 1.6rem; }
        .article-main .content h3 { font-size: 1.25rem; }
        .article-main .content ul, .article-main .content ol {
            padding-left: 1.6em;
            margin-bottom: 1.2em;
        }
        .article-main .content ul li { list-style: disc; margin-bottom: 0.3em; }
        .article-main .content ol li { list-style: decimal; margin-bottom: 0.3em; }
        .article-main .content blockquote {
            border-left: 4px solid var(--primary-light);
            background: var(--primary-bg);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
        }
        .article-main .content a { color: var(--primary); text-decoration: underline; }
        .article-main .content a:hover { color: var(--primary-dark); }
        .article-footer-meta {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
        }
        .article-footer-meta .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-footer-meta .tags span {
            background: var(--primary-bg);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .article-footer-meta .share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .article-footer-meta .share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 999px;
            background: var(--bg-body);
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .article-footer-meta .share a:hover { background: var(--primary); color: #fff; }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-bg);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            color: var(--text-primary);
            transition: color var(--transition);
        }
        .sidebar-list a:hover { color: var(--primary); }
        .sidebar-list .thumb {
            width: 64px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-body);
        }
        .sidebar-list .info { flex: 1; }
        .sidebar-list .info .title-sm {
            font-size: 0.9rem;
            font-weight: 600;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
        }
        .sidebar-list .info .date-sm {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            text-align: center;
        }
        .sidebar-cta h4 { color: #fff; font-size: 1.15rem; margin-bottom: 8px; }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.85; margin-bottom: 18px; }
        .sidebar-cta .btn {
            background: #fff;
            color: var(--primary);
            padding: 10px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            display: inline-block;
            transition: all var(--transition);
        }
        .sidebar-cta .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

        /* ===== Not Found ===== */
        .not-found-wrap {
            text-align: center;
            padding: 80px 24px;
        }
        .not-found-wrap i { font-size: 4rem; color: var(--text-muted); margin-bottom: 20px; }
        .not-found-wrap h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .not-found-wrap p { color: var(--text-secondary); margin-bottom: 24px; }
        .not-found-wrap .btn {
            display: inline-block;
            padding: 12px 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .not-found-wrap .btn:hover { background: var(--primary-dark); transform: translateY(-2px); }

        /* ===== Related Section ===== */
        .related-section { padding: 0 0 72px; }
        .related-section .section-title { font-size: 1.6rem; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card .body { padding: 18px 20px 20px; }
        .related-card .body .badge-sm {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .related-card .body h4 { font-size: 1rem; margin-bottom: 6px; }
        .related-card .body h4 a { color: var(--text-primary); }
        .related-card .body h4 a:hover { color: var(--primary); }
        .related-card .body .date { font-size: 0.8rem; color: var(--text-muted); }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
        }
        .footer .logo { color: #fff; margin-bottom: 16px; }
        .footer .logo span { -webkit-text-fill-color: #fff; }
        .footer .logo i { color: var(--secondary); }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 340px; }
        .footer-social { display: flex; gap: 12px; margin-top: 18px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 999px;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; }
        .footer-links h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; font-weight: 600; }
        .footer-links a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-links a:hover { color: #fff; }
        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition);
        }
        .btn-primary { background: var(--primary); color: #fff; }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,86,219,0.3); }
        .btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
        .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .container { padding: 0 16px; }
            .section { padding: 48px 0; }
            .section-title { font-size: 1.5rem; }
            .nav-main { display: none; }
            .nav-main.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(16px);
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-lg);
            }
            .nav-main.open a { padding: 12px 16px; }
            .nav-main.open .nav-search { margin-left: 0; margin-top: 8px; width: 100%; }
            .nav-main.open .nav-search input { width: 100%; }
            .nav-toggle { display: block; }
            .article-hero { padding: 48px 0 36px; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-hero .desc { font-size: 0.95rem; }
            .article-main { padding: 24px 20px; }
            .article-main .content { font-size: 0.98rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-brand p { max-width: 100%; }
            .sidebar-card { padding: 20px; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.35rem; }
            .article-hero .meta { gap: 10px; }
            .article-main { padding: 16px 14px; }
            .article-footer-meta { flex-direction: column; align-items: flex-start; }
            .related-card img { height: 140px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a4b8c;
            --primary-light: #2a6bc4;
            --primary-dark: #0e2d5a;
            --secondary: #e8b830;
            --secondary-light: #f0d060;
            --accent: #d94a3a;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-card: #ffffff;
            --text-primary: #1a2332;
            --text-secondary: #4a5568;
            --text-light: #8a95a8;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 18px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-nav: 0 2px 16px rgba(0, 0, 0, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-width: 1200px;
            --header-height: 72px;
        }

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

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

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-nav);
            transition: background var(--transition);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo i {
            font-size: 26px;
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.9;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: rgba(26, 75, 140, 0.06);
        }
        .nav-main a.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(26, 75, 140, 0.25);
        }
        .nav-main a.active:hover {
            background: var(--primary-light);
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border-radius: 24px;
            padding: 0 4px 0 16px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            margin-left: 12px;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 75, 140, 0.10);
        }
        .nav-search input {
            border: none;
            background: transparent;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text-primary);
            width: 140px;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--text-light);
        }
        .nav-search button {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition);
            font-size: 14px;
        }
        .nav-search button:hover {
            background: var(--primary-light);
        }

        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text-primary);
            padding: 6px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-body);
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 900px) {
            .nav-main {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-nav);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                pointer-events: none;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-search {
                width: 100%;
                margin-left: 0;
                margin-top: 8px;
            }
            .nav-search input {
                width: 100%;
            }
            .nav-toggle {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 20px;
            }
            .nav-main {
                padding: 12px 16px 20px;
            }
        }

        /* ===== Banner 内页横幅 ===== */
        .page-banner {
            padding-top: calc(var(--header-height) + 20px);
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 260px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding-top: 32px;
            padding-bottom: 40px;
        }
        .page-banner h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .page-banner .breadcrumb a:hover {
            color: var(--secondary);
        }
        .page-banner .breadcrumb span {
            color: var(--secondary);
        }

        @media (max-width: 768px) {
            .page-banner {
                min-height: 200px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .page-banner .container {
                padding-top: 24px;
                padding-bottom: 32px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }
        .section-header .tag-line {
            display: inline-block;
            background: rgba(26, 75, 140, 0.08);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .section-header p {
                font-size: 15px;
            }
        }

        /* ===== 分类卡片网格 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border);
        }
        .category-card .card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover .card-img img {
            transform: scale(1.06);
        }
        .category-card .card-img .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .category-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .category-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .category-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .category-card .card-body .card-meta .tag {
            background: var(--bg-body);
            padding: 2px 12px;
            border-radius: 12px;
            font-size: 12px;
        }
        .category-card .card-body .btn-text {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .category-card .card-body .btn-text:hover {
            gap: 10px;
            color: var(--primary-light);
        }

        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
            .category-card .card-img {
                height: 150px;
            }
        }

        /* ===== 赛事列表区块 ===== */
        .event-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .event-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all var(--transition);
        }
        .event-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--border);
        }
        .event-item .event-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(26, 75, 140, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .event-item .event-info {
            flex: 1;
        }
        .event-item .event-info h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--text-primary);
        }
        .event-item .event-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 4px;
        }
        .event-item .event-info .event-status {
            display: inline-block;
            font-size: 12px;
            padding: 2px 12px;
            border-radius: 12px;
            background: rgba(232, 184, 48, 0.15);
            color: #b8941a;
            font-weight: 500;
        }
        .event-item .event-score {
            text-align: center;
            flex-shrink: 0;
            min-width: 60px;
        }
        .event-item .event-score .num {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
        }
        .event-item .event-score .label {
            font-size: 12px;
            color: var(--text-light);
        }

        @media (max-width: 768px) {
            .event-list {
                grid-template-columns: 1fr;
            }
            .event-item {
                padding: 16px 18px;
                flex-wrap: wrap;
            }
            .event-item .event-score {
                min-width: 50px;
            }
            .event-item .event-score .num {
                font-size: 20px;
            }
        }

        /* ===== 数据统计板块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-card .stat-icon {
            font-size: 32px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .stat-card .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .stat-card .stat-num span {
            color: var(--primary);
        }
        .stat-card .stat-label {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        @media (max-width: 900px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card .stat-num {
                font-size: 28px;
            }
        }

        /* ===== 内容资讯列表 ===== */
        .content-list {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .content-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .content-card .content-img {
            height: 180px;
            overflow: hidden;
        }
        .content-card .content-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .content-card:hover .content-img img {
            transform: scale(1.05);
        }
        .content-card .content-body {
            padding: 20px 22px 24px;
        }
        .content-card .content-body .content-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(26, 75, 140, 0.08);
            padding: 2px 12px;
            border-radius: 12px;
            margin-bottom: 8px;
        }
        .content-card .content-body h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }
        .content-card .content-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .content-card .content-body .content-meta {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
        }

        @media (max-width: 1024px) {
            .content-list {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 600px) {
            .content-list {
                grid-template-columns: 1fr;
            }
            .content-card .content-img {
                height: 160px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .faq-item:hover {
            border-color: var(--border);
        }
        .faq-item summary {
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
            transition: color var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 18px;
            color: var(--text-light);
            transition: transform 0.3s ease;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            border-top: 1px solid var(--border-light);
            padding-top: 16px;
            margin-top: 0;
        }

        @media (max-width: 600px) {
            .faq-item summary {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 540px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            background: var(--secondary);
            border-radius: 40px;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(232, 184, 48, 0.30);
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 184, 48, 0.40);
            color: var(--text-white);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: 40px;
            transition: all var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-2px);
            color: var(--text-white);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section p {
                font-size: 15px;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 28px;
                font-size: 15px;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .footer .logo {
            color: var(--text-white);
        }
        .footer .logo span {
            background: linear-gradient(135deg, #fff, #c8d8e8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin: 16px 0 20px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 18px;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .footer-links h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-links a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 6px 0;
            transition: all var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer {
                padding: 40px 0 0;
            }
        }

        /* ===== 工具类 ===== */
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .text-center {
            text-align: center;
        }
        .bg-white {
            background: var(--bg-white);
        }
        .bg-light {
            background: var(--bg-body);
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 0 auto 16px;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 1024px) {
            :root {
                --header-height: 64px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .content-card .content-body h4 {
                font-size: 16px;
            }
        }