/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #c0392b;
            --primary-dark: #a93226;
            --primary-light: #e74c3c;
            --secondary: #2c3e50;
            --secondary-light: #34495e;
            --accent: #f39c12;
            --accent-light: #f1c40f;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --bg-dark: #1a1a2e;
            --text-primary: #2d3436;
            --text-secondary: #636e72;
            --text-light: #b2bec3;
            --text-white: #ffffff;
            --border-color: #e9ecef;
            --border-light: #f1f2f6;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-hover: 0 12px 32px rgba(192,57,43,0.15);
            --transition: all 0.30s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
            --max-width: 1200px;
            --header-height: 76px;
        }

        /* ===== 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-primary);
            background: var(--bg-light);
            overflow-x: hidden;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul,ol { list-style: none; }
        button,input,textarea,select { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        h1,h2,h3,h4,h5,h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 0.8rem; color: var(--text-secondary); }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow { max-width: 900px; margin: 0 auto; padding: 0 24px; }
        .container-wide { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

        /* ===== Utility ===== */
        .section-padding { padding: 80px 0; }
        .section-padding-sm { padding: 50px 0; }
        .text-center { text-align: center; }
        .text-primary { color: var(--primary); }
        .text-secondary { color: var(--text-secondary); }
        .text-white { color: var(--text-white); }
        .bg-white { background: var(--bg-white); }
        .bg-light { background: var(--bg-light); }
        .bg-dark { background: var(--bg-dark); color: var(--text-white); }
        .bg-gradient { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mb-5 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mt-4 { margin-top: 2rem; }
        .mt-5 { margin-top: 3rem; }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 0.5rem;
            position: relative;
            padding-left: 20px;
        }
        .section-label::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .section-title.light { color: var(--text-white); }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 2.5rem;
            line-height: 1.8;
        }
        .section-desc.light { color: rgba(255,255,255,0.8); }
        .divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 0.8rem auto 1.5rem;
        }
        .divider.left { margin-left: 0; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline:active { transform: translateY(0); }
        .btn-light {
            background: var(--text-white);
            color: var(--primary);
            border-color: var(--text-white);
        }
        .btn-light:hover {
            background: var(--bg-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius-md); }
        .btn-icon { width: 44px; height: 44px; padding: 0; justify-content: center; border-radius: 50%; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow-md); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-primary);
            text-decoration: none;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .logo:hover { color: var(--primary); }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .logo-text span { color: var(--primary); }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-main a {
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            text-decoration: none;
        }
        .nav-main a:hover { color: var(--primary); background: rgba(192,57,43,0.06); }
        .nav-main a.active {
            color: var(--primary);
            background: rgba(192,57,43,0.08);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-toggle {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 1.1rem;
            transition: var(--transition);
            background: var(--bg-light);
        }
        .search-toggle:hover { background: var(--border-color); color: var(--primary); }
        .header-cta { display: inline-flex; align-items: center; gap: 6px; }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-size: 1.4rem;
            color: var(--text-primary);
            background: var(--bg-light);
            transition: var(--transition);
        }
        .nav-toggle:hover { background: var(--border-color); color: var(--primary); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: var(--header-height) 24px 60px;
            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;
            transform: scale(1.05);
            transition: transform 8s ease;
        }
        .hero:hover .hero-bg { transform: scale(1.0); }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,26,46,0.92) 0%, rgba(26,26,46,0.70) 50%, rgba(192,57,43,0.30) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: 50px;
            color: rgba(255,255,255,0.9);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
        }
        .hero-badge i { color: var(--accent); }
        .hero-title {
            font-size: clamp(2.4rem, 6vw, 4rem);
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.15;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
        }
        .hero-title span { color: var(--accent); background: linear-gradient(135deg, var(--accent), var(--accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-desc {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255,255,255,0.75);
            max-width: 620px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 30px 50px;
            justify-content: center;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.12);
        }
        .hero-stat-item { text-align: center; }
        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .hero-stat-number i { color: var(--accent); font-size: 1.4rem; margin-right: 4px; }
        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            margin-top: 4px;
        }

        /* ===== Features / Core Services ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
            margin-top: 1rem;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 26px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(192,57,43,0.15);
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 1.2rem;
            background: linear-gradient(135deg, rgba(192,57,43,0.10), rgba(192,57,43,0.04));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon { background: var(--primary); color: var(--text-white); transform: scale(1.05); }
        .feature-card h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
        .feature-card p { font-size: 0.92rem; color: var(--text-secondary); margin-bottom: 0; }

        /* ===== Categories ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            min-height: 320px;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .category-card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(0,0,0,0.40) 0%, transparent 60%);
        }
        .category-card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card-body h3 { font-size: 1.15rem; margin-bottom: 0.4rem; }
        .category-card-body p { font-size: 0.9rem; color: var(--text-secondary); flex: 1; margin-bottom: 1rem; }
        .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(192,57,43,0.08);
            border-radius: 50px;
            align-self: flex-start;
        }
        .category-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
        }
        .category-link:hover { gap: 10px; }

        /* ===== Latest News / CMS List ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .news-card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .news-card-img .news-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #fff;
            background: var(--primary);
            border-radius: 50px;
        }
        .news-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-body h3 a { color: var(--text-primary); }
        .news-card-body h3 a:hover { color: var(--primary); }
        .news-card-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            margin-bottom: 0.8rem;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
            margin-top: auto;
        }
        .news-meta i { margin-right: 4px; }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 40px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
            color: var(--text-secondary);
        }
        .news-empty i { font-size: 2rem; color: var(--text-light); margin-bottom: 1rem; display: block; }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 30px;
            position: relative;
            z-index: 1;
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
        }
        .stat-item:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 0.3rem;
        }
        .stat-label {
            font-size: 0.92rem;
            color: rgba(255,255,255,0.7);
            font-weight: 500;
        }

        /* ===== Process / How It Works ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            padding: 28px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .process-step::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 0.85rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(192,57,43,0.30);
        }
        .process-step .step-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 1rem;
            margin-top: 0.5rem;
        }
        .process-step h4 { font-size: 1.05rem; margin-bottom: 0.4rem; }
        .process-step p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(192,57,43,0.15); }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { transition: var(--transition); font-size: 0.9rem; color: var(--text-light); }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 20px 0;
        }
        .cta-content h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }
        .cta-content p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 1.8rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { color: var(--text-white); margin-bottom: 1rem; }
        .footer-brand .logo .logo-icon { background: var(--primary); }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
            line-height: 1.8;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .footer-col ul li { margin-bottom: 0.5rem; }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }
        .footer-social { display: flex; gap: 10px; }
        .footer-social a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.5);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: var(--text-white); transform: translateY(-2px); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .hero { min-height: 70vh; }
        }

        @media (max-width: 768px) {
            :root { --header-height: 64px; }
            .nav-main { display: none; }
            .nav-toggle { display: flex; }
            .header-cta .btn span { display: none; }
            .header-cta .btn { padding: 8px 16px; }
            .hero { min-height: 60vh; padding-top: calc(var(--header-height) + 20px); }
            .hero-title { font-size: clamp(1.8rem, 5vw, 2.6rem); }
            .hero-stats { gap: 20px 30px; }
            .hero-stat-number { font-size: 1.4rem; }
            .section-padding { padding: 50px 0; }
            .features-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .categories-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .process-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }

            /* Mobile nav active */
            .nav-main.mobile-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(12px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                gap: 4px;
            }
            .nav-main.mobile-open a { padding: 12px 16px; width: 100%; }
            .nav-main.mobile-open a.active::after { display: none; }
            .nav-main.mobile-open a.active { background: rgba(192,57,43,0.08); border-left: 3px solid var(--primary); }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .features-grid { grid-template-columns: 1fr; }
            .process-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-number { font-size: 1.8rem; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .news-card-img { height: 140px; }
            .category-card-img { height: 150px; }
            .section-title { font-size: 1.4rem; }
        }

        /* ===== Mobile menu overlay fix ===== */
        @media (min-width: 769px) {
            .nav-main { display: flex !important; }
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-fade-up { animation: fadeUp 0.7s ease forwards; }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

        .scroll-animate {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .scroll-animate.visible { opacity: 1; transform: translateY(0); }

/* roulang page: article */
:root {
            --primary: #c0392b;
            --primary-light: #e74c3c;
            --primary-dark: #96281b;
            --accent: #f39c12;
            --accent-light: #f1c40f;
            --bg: #f8f9fa;
            --bg-card: #ffffff;
            --bg-dark: #1a1a2e;
            --text: #2c3e50;
            --text-light: #6c757d;
            --text-white: #f8f9fa;
            --border: #e9ecef;
            --border-light: #f0f0f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
            --shadow-nav: 0 2px 20px rgba(0,0,0,0.05);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        html { scroll-behavior: smooth; font-size: 16px; }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--header-height);
        }

        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        p { margin-bottom: 1rem; }

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

        .btn {
            display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px;
            border-radius: 50px; font-weight: 600; font-size: 0.95rem; line-height: 1.4;
            border: none; cursor: pointer; transition: var(--transition); text-decoration: none;
            background: transparent; color: var(--text);
        }
        .btn-primary { background: var(--primary); color: #fff; }
        .btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(192,57,43,0.3); }
        .btn-outline { border: 2px solid var(--primary); color: var(--primary); background: transparent; }
        .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn-lg { padding: 16px 36px; font-size: 1.1rem; }
        .btn-accent { background: var(--accent); color: #fff; }
        .btn-accent:hover { background: #e67e22; color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(243,156,18,0.3); }

        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 50px; font-size: 0.8rem;
            font-weight: 600; background: var(--border-light); color: var(--text-light);
        }
        .badge-primary { background: rgba(192,57,43,0.12); color: var(--primary); }
        .badge-accent { background: rgba(243,156,18,0.15); color: #d35400; }

        .section { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { font-size: 2rem; margin-bottom: 12px; position: relative; display: inline-block; }
        .section-title h2::after { content: ''; display: block; width: 60px; height: 4px; background: var(--primary); border-radius: 4px; margin: 12px auto 0; }
        .section-title p { color: var(--text-light); max-width: 640px; margin: 0 auto; font-size: 1.05rem; }

        /* ===== 导航 ===== */
        .site-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); border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-nav); transition: var(--transition);
        }
        .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; text-decoration: none; color: var(--text); flex-shrink: 0; }
        .logo:hover { color: var(--text); }
        .logo-icon {
            width: 40px; height: 40px; border-radius: 10px; background: var(--primary);
            color: #fff; display: flex; align-items: center; justify-content: center;
            font-size: 1.3rem; font-weight: 800; letter-spacing: 1px;
        }
        .logo-text { font-size: 1.25rem; font-weight: 700; letter-spacing: 0.5px; }
        .logo-text span { color: var(--primary); font-weight: 300; }
        .nav-main { display: flex; align-items: center; gap: 8px; }
        .nav-main a {
            padding: 8px 18px; border-radius: 50px; font-size: 0.92rem; font-weight: 500;
            color: var(--text-light); text-decoration: none; transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { color: var(--primary); background: rgba(192,57,43,0.06); }
        .nav-main a.active { color: #fff; background: var(--primary); box-shadow: 0 4px 14px rgba(192,57,43,0.25); }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .search-toggle, .nav-toggle {
            background: none; border: none; font-size: 1.2rem; color: var(--text-light);
            cursor: pointer; width: 40px; height: 40px; border-radius: 50%;
            display: flex; align-items: center; justify-content: center; transition: var(--transition);
        }
        .search-toggle:hover { background: var(--border-light); color: var(--primary); }
        .nav-toggle { display: none; }
        .nav-toggle:hover { background: var(--border-light); color: var(--primary); }
        .header-cta { padding: 8px 22px; font-size: 0.85rem; }
        .header-cta i { font-size: 0.8rem; }

        /* ===== 文章页 ===== */
        .article-banner {
            position: relative; height: 340px; display: flex; align-items: center; justify-content: center;
            text-align: center; color: #fff; overflow: hidden; margin-top: 0;
        }
        .article-banner-bg {
            position: absolute; inset: 0; background-size: cover; background-position: center;
            background-repeat: no-repeat; filter: brightness(0.45); z-index: 0;
        }
        .article-banner::after {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.6) 100%); z-index: 1;
        }
        .article-banner .container { position: relative; z-index: 2; padding: 0 24px; }
        .article-banner .badge { background: rgba(255,255,255,0.2); color: #fff; backdrop-filter: blur(4px); margin-bottom: 16px; }
        .article-banner h1 { font-size: 2.4rem; font-weight: 800; color: #fff; max-width: 800px; margin: 0 auto 16px; line-height: 1.3; text-shadow: 0 2px 20px rgba(0,0,0,0.3); }
        .article-meta-bar { display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap; color: rgba(255,255,255,0.85); font-size: 0.92rem; }
        .article-meta-bar i { margin-right: 6px; }
        .article-meta-bar span { display: inline-flex; align-items: center; }

        .article-main { padding: 56px 0 80px; }
        .article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; }
        .article-content { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 40px; }
        .article-content .lead { font-size: 1.15rem; color: var(--text-light); line-height: 1.8; margin-bottom: 28px; padding: 0 0 24px; border-bottom: 1px solid var(--border); }
        .article-body { font-size: 1.02rem; line-height: 1.9; color: var(--text); }
        .article-body p { margin-bottom: 1.4rem; }
        .article-body h2 { font-size: 1.6rem; margin: 40px 0 16px; color: var(--text); }
        .article-body h3 { font-size: 1.3rem; margin: 32px 0 12px; }
        .article-body ul, .article-body ol { margin: 0 0 1.4rem 1.6rem; list-style: disc; }
        .article-body li { margin-bottom: 6px; }
        .article-body img { border-radius: var(--radius-sm); margin: 24px 0; }
        .article-body blockquote {
            border-left: 4px solid var(--primary); background: rgba(192,57,43,0.04);
            padding: 16px 24px; margin: 24px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light); font-style: italic;
        }
        .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
        .article-body a:hover { color: var(--primary-dark); }

        .article-sidebar { display: flex; flex-direction: column; gap: 32px; }
        .sidebar-card { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
        .sidebar-card h3 { font-size: 1.15rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); display: inline-block; }
        .sidebar-list li { padding: 10px 0; border-bottom: 1px solid var(--border); }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a { color: var(--text); font-size: 0.92rem; display: flex; align-items: center; gap: 8px; }
        .sidebar-list a:hover { color: var(--primary); }
        .sidebar-list a i { color: var(--primary); font-size: 0.8rem; }
        .sidebar-card .badge { margin-right: 6px; }

        .article-nav { margin-top: 40px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
        .article-nav a { padding: 12px 24px; border-radius: 50px; border: 1px solid var(--border); color: var(--text); font-size: 0.92rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
        .article-nav a:hover { border-color: var(--primary); color: var(--primary); background: rgba(192,57,43,0.04); }

        .not-found-container { text-align: center; padding: 100px 24px; }
        .not-found-container .icon { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; }
        .not-found-container h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .not-found-container p { color: var(--text-light); margin-bottom: 24px; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.8); padding: 60px 0 0;
        }
        .site-footer .logo { margin-bottom: 16px; }
        .site-footer .logo-text { color: #fff; }
        .footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
        .footer-brand p { font-size: 0.92rem; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; font-weight: 600; letter-spacing: 0.5px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,0.08);
            display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.7);
            font-size: 1.1rem; transition: var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
        .footer-bottom {
            padding: 24px 0; display: flex; justify-content: space-between; align-items: center;
            flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: rgba(255,255,255,0.4);
        }

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

        @media (max-width: 768px) {
            .header-inner { padding: 0 16px; }
            .nav-main { display: none; position: absolute; 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: 6px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
            .nav-main.open { display: flex; }
            .nav-main a { width: 100%; text-align: center; padding: 12px 18px; }
            .nav-toggle { display: flex; }
            .header-cta span { display: none; }
            .section { padding: 56px 0; }
            .article-banner { height: 240px; }
            .article-banner h1 { font-size: 1.6rem; }
            .article-content { padding: 24px; }
            .article-meta-bar { gap: 12px; font-size: 0.82rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-title h2 { font-size: 1.6rem; }
        }

        @media (max-width: 520px) {
            .article-banner { height: 200px; }
            .article-banner h1 { font-size: 1.3rem; }
            .logo-text { font-size: 1.05rem; }
            .logo-icon { width: 34px; height: 34px; font-size: 1.1rem; }
            .container { padding: 0 16px; }
            .article-content { padding: 16px; }
            .btn { padding: 10px 20px; font-size: 0.85rem; }
        }

        .nav-main a:focus-visible, .btn:focus-visible, .search-toggle:focus-visible, .nav-toggle:focus-visible {
            outline: 3px solid var(--accent); outline-offset: 2px;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2640;
            --accent: #e85d3a;
            --accent-light: #f07a5a;
            --accent-dark: #c9452a;
            --bg: #f7f9fc;
            --bg-card: #ffffff;
            --bg-dark: #1a2a3a;
            --bg-gray: #eef2f7;
            --text: #1a2a3a;
            --text-light: #5a6a7a;
            --text-white: #f0f4f8;
            --border: #dce4ed;
            --border-light: #e8eef5;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(26, 58, 92, 0.08);
            --shadow-hover: 0 12px 40px rgba(26, 58, 92, 0.15);
            --shadow-header: 0 2px 20px rgba(26, 58, 92, 0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --spacing: 24px;
            --spacing-lg: 60px;
            --spacing-xl: 100px;
            --max-width: 1200px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--primary); }
        h2 { font-size: 2rem; margin-bottom: 8px; }
        h3 { font-size: 1.35rem; }
        p { margin-bottom: 12px; color: var(--text-light); }

        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; width: 100%; }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 28px; border-radius: 50px;
            font-weight: 600; font-size: 0.95rem;
            border: 2px solid transparent;
            cursor: pointer; transition: all var(--transition);
            text-decoration: none; line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent); color: #fff; border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark); border-color: var(--accent-dark);
            color: #fff; transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(232, 93, 58, 0.35);
        }
        .btn-outline {
            background: transparent; color: var(--primary); border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary); color: #fff; transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(26, 58, 92, 0.25);
        }
        .btn-white {
            background: #fff; color: var(--primary); border-color: #fff;
        }
        .btn-white:hover {
            background: var(--bg-gray); transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.12);
        }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn-lg { padding: 16px 36px; font-size: 1.05rem; }

        /* ===== Header / 导航 ===== */
        .site-header {
            background: #fff; border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-header);
            position: sticky; top: 0; z-index: 1000;
            height: 72px; display: flex; align-items: center;
        }
        .header-inner {
            max-width: var(--max-width); margin: 0 auto; padding: 0 20px;
            width: 100%; display: flex; align-items: center; justify-content: space-between;
            gap: 20px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px; text-decoration: none;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px; height: 40px; background: var(--accent);
            color: #fff; border-radius: 10px;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.2rem; font-weight: 800;
        }
        .logo-text { font-size: 1.4rem; font-weight: 800; color: var(--primary); letter-spacing: -0.5px; }
        .logo-text span { color: var(--accent); }
        .nav-main { display: flex; align-items: center; gap: 4px; }
        .nav-main a {
            padding: 8px 18px; border-radius: 50px;
            font-size: 0.95rem; font-weight: 500; color: var(--text-light);
            transition: all var(--transition); text-decoration: none;
            white-space: nowrap;
        }
        .nav-main a:hover { color: var(--primary); background: var(--bg-gray); }
        .nav-main a.active {
            color: #fff; background: var(--primary);
            font-weight: 600;
        }
        .header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
        .search-toggle {
            width: 40px; height: 40px; border-radius: 50%;
            border: none; background: var(--bg-gray);
            color: var(--text-light); font-size: 1rem;
            cursor: pointer; transition: all var(--transition);
            display: flex; align-items: center; justify-content: center;
        }
        .search-toggle:hover { background: var(--border); color: var(--primary); }
        .header-cta { display: inline-flex; }
        .nav-toggle { display: none; width: 40px; height: 40px; border-radius: 8px; border: none; background: transparent; color: var(--primary); font-size: 1.4rem; cursor: pointer; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: var(--text-white);
            padding: 60px 0 0;
        }
        .site-footer .container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
        .footer-grid {
            display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; font-weight: 700; letter-spacing: 1px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: color var(--transition); }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 38px; height: 38px; border-radius: 50%;
            background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.6);
            display: flex; align-items: center; justify-content: center;
            font-size: 1rem; transition: all var(--transition);
            text-decoration: none;
        }
        .footer-social a:hover { background: var(--accent); color: #fff; }
        .footer-bottom {
            display: flex; justify-content: space-between; align-items: center;
            padding: 24px 0; font-size: 0.85rem;
            color: rgba(255,255,255,0.4); flex-wrap: wrap; gap: 12px;
        }

        /* ===== 分类页 Hero ===== */
        .category-hero {
            position: relative; padding: 80px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden; min-height: 340px;
            display: flex; align-items: center;
        }
        .category-hero::before {
            content: ''; position: absolute; inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover; background-position: center;
            opacity: 0.18; mix-blend-mode: overlay;
        }
        .category-hero .container { position: relative; z-index: 2; }
        .category-hero h1 {
            font-size: 2.8rem; color: #fff; margin-bottom: 12px;
            font-weight: 800; letter-spacing: -0.5px;
        }
        .category-hero p {
            font-size: 1.15rem; color: rgba(255,255,255,0.78);
            max-width: 680px; margin-bottom: 28px; line-height: 1.7;
        }
        .hero-breadcrumb { display: flex; gap: 8px; font-size: 0.9rem; color: rgba(255,255,255,0.5); margin-bottom: 20px; flex-wrap: wrap; }
        .hero-breadcrumb a { color: rgba(255,255,255,0.7); }
        .hero-breadcrumb a:hover { color: #fff; }
        .hero-breadcrumb span { color: rgba(255,255,255,0.4); }
        .hero-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
        .hero-tags .tag {
            padding: 6px 18px; border-radius: 50px;
            background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.85);
            font-size: 0.85rem; border: 1px solid rgba(255,255,255,0.15);
            transition: all var(--transition);
        }
        .hero-tags .tag:hover { background: rgba(255,255,255,0.22); }

        /* ===== 板块通用 ===== */
        .section { padding: var(--spacing-xl) 0; }
        .section-title { text-align: center; margin-bottom: 48px; }
        .section-title h2 { font-size: 2rem; color: var(--primary); margin-bottom: 8px; }
        .section-title p { color: var(--text-light); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
        .section-bg-gray { background: var(--bg-gray); }
        .section-bg-dark { background: var(--bg-dark); }
        .section-bg-dark .section-title h2 { color: #fff; }
        .section-bg-dark .section-title p { color: rgba(255,255,255,0.6); }

        /* ===== 卡片基类 ===== */
        .card {
            background: var(--bg-card); border-radius: var(--radius);
            box-shadow: var(--shadow); overflow: hidden;
            transition: all var(--transition); border: 1px solid var(--border-light);
        }
        .card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
        .card-img { width: 100%; height: 200px; object-fit: cover; border-radius: var(--radius) var(--radius) 0 0; }
        .card-body { padding: 20px 24px 24px; }
        .card-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .card-body p { font-size: 0.92rem; color: var(--text-light); margin-bottom: 12px; }
        .card-meta { display: flex; gap: 16px; font-size: 0.82rem; color: var(--text-light); margin-bottom: 12px; flex-wrap: wrap; }
        .card-meta i { margin-right: 4px; }

        /* ===== 赛事分类网格 ===== */
        .sport-grid {
            display: grid; grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .sport-card {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 32px 20px 28px; text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition); cursor: default;
        }
        .sport-card:hover {
            box-shadow: var(--shadow-hover); transform: translateY(-4px);
            border-color: var(--accent);
        }
        .sport-card .icon {
            width: 64px; height: 64px; margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            border-radius: 18px; display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem; color: #fff;
        }
        .sport-card h3 { font-size: 1.1rem; margin-bottom: 6px; }
        .sport-card p { font-size: 0.88rem; color: var(--text-light); margin-bottom: 12px; }
        .sport-card .badge {
            display: inline-block; padding: 4px 14px; border-radius: 50px;
            background: var(--bg-gray); color: var(--text-light);
            font-size: 0.8rem; font-weight: 500;
        }

        /* ===== 热门赛事卡片 ===== */
        .event-grid {
            display: grid; grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .event-card .card-img { height: 200px; }
        .event-card .badge-top {
            display: inline-block; padding: 3px 14px; border-radius: 50px;
            background: var(--accent); color: #fff; font-size: 0.75rem; font-weight: 600;
            margin-bottom: 10px;
        }

        /* ===== 资讯列表 ===== */
        .news-list { max-width: 880px; margin: 0 auto; }
        .news-item {
            display: flex; gap: 20px; padding: 24px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
        }
        .news-item:first-child { padding-top: 0; }
        .news-item:hover { background: rgba(0,0,0,0.01); }
        .news-item .thumb {
            width: 180px; min-height: 120px; border-radius: var(--radius-sm);
            object-fit: cover; flex-shrink: 0;
        }
        .news-item .info { flex: 1; }
        .news-item .info h3 { font-size: 1.1rem; margin-bottom: 6px; }
        .news-item .info p { font-size: 0.92rem; color: var(--text-light); margin-bottom: 8px; }
        .news-item .meta { font-size: 0.82rem; color: var(--text-light); display: flex; gap: 16px; flex-wrap: wrap; }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid; grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center; padding: 32px 16px;
            background: rgba(255,255,255,0.05); border-radius: var(--radius);
            border: 1px solid rgba(255,255,255,0.08);
            transition: all var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
        .stat-card .num {
            font-size: 2.8rem; font-weight: 800; color: var(--accent);
            line-height: 1.1; margin-bottom: 4px;
        }
        .stat-card .label { font-size: 0.95rem; color: rgba(255,255,255,0.65); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card); border-radius: var(--radius-sm);
            padding: 20px 24px; margin-bottom: 12px;
            border: 1px solid var(--border-light);
            cursor: pointer; transition: all var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-item .q { font-weight: 700; color: var(--primary); font-size: 1rem; display: flex; justify-content: space-between; align-items: center; }
        .faq-item .q i { color: var(--accent); transition: transform var(--transition); }
        .faq-item.open .q i { transform: rotate(180deg); }
        .faq-item .a {
            margin-top: 12px; font-size: 0.95rem; color: var(--text-light);
            display: none; line-height: 1.7;
        }
        .faq-item.open .a { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light));
            padding: 80px 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: 0.1; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2.2rem; color: #fff; margin-bottom: 12px; }
        .cta-section p { font-size: 1.1rem; color: rgba(255,255,255,0.7); margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-section .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .sport-grid { grid-template-columns: repeat(2, 1fr); }
            .event-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-main { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: #fff; padding: 16px 20px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); }
            .nav-main.open { display: flex; }
            .nav-main a { width: 100%; padding: 12px 16px; }
            .nav-toggle { display: flex; align-items: center; justify-content: center; }
            .header-cta span { display: none; }
            .category-hero h1 { font-size: 2rem; }
            .category-hero p { font-size: 1rem; }
            .section { padding: 50px 0; }
            .section-title h2 { font-size: 1.6rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 30px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .sport-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .event-grid { grid-template-columns: 1fr; }
            .news-item { flex-direction: column; }
            .news-item .thumb { width: 100%; height: 200px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-card .num { font-size: 2.2rem; }
            .cta-section h2 { font-size: 1.6rem; }
            .container { padding: 0 16px; }
        }
        @media (max-width: 520px) {
            .sport-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
            .category-hero h1 { font-size: 1.6rem; }
            .header-cta { display: none; }
        }

        /* ===== 辅助 ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 12px; }
        .mt-2 { margin-top: 24px; }
        .mb-1 { margin-bottom: 12px; }
        .mb-2 { margin-bottom: 24px; }
        .gap-1 { gap: 12px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        
        /* Foundation 兼容覆盖 */
        .grid-container { max-width: var(--max-width); padding-left: 20px; padding-right: 20px; }
        .cell { margin-bottom: 0; }
        .grid-x { margin-left: 0; margin-right: 0; }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0078D7;
            --primary-dark: #005A9E;
            --primary-light: #E6F2FC;
            --accent: #FF6A00;
            --accent-dark: #E05D00;
            --bg: #FFFFFF;
            --bg-alt: #F6F9FC;
            --bg-dark: #1A2A3A;
            --text: #1E2A41;
            --text-light: #5A6A7E;
            --text-white: #F0F4F8;
            --border: #E2E8F0;
            --border-light: #F0F2F5;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.10);
            --radius: 12px;
            --radius-sm: 6px;
            --radius-lg: 20px;
            --transition: all 0.25s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
            --nav-gap: 28px;
        }

        /* ===== 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: 1.6;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--header-h);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .logo-text span {
            color: var(--accent);
            font-weight: 700;
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: var(--nav-gap);
            margin: 0 20px;
        }
        .nav-main a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
        }
        .nav-main a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-main a:hover {
            color: var(--text);
        }
        .nav-main a:hover::after {
            width: 100%;
        }
        .nav-main a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-main a.active::after {
            width: 100%;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-toggle,
        .nav-toggle {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 18px;
            transition: var(--transition);
            background: transparent;
        }
        .search-toggle:hover,
        .nav-toggle:hover {
            background: var(--bg-alt);
            color: var(--text);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
        }
        .header-cta i {
            font-size: 13px;
        }
        .nav-toggle {
            display: none;
        }

        /* ===== 按钮系统 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 120, 215, 0.25);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 106, 0, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 17px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            color: var(--text);
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-sub {
            font-size: 17px;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.6;
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-sub {
            margin-left: auto;
            margin-right: auto;
        }
        .grid-2,
        .grid-3,
        .grid-4 {
            display: grid;
            gap: 28px;
        }
        .grid-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        /* ===== 卡片 ===== */
        .card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-image {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
            margin-bottom: 10px;
        }
        .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text);
        }
        .card-title a {
            color: inherit;
        }
        .card-title a:hover {
            color: var(--primary);
        }
        .card-text {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-link {
            font-weight: 600;
            font-size: 14px;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-accent {
            background: #FFF2E0;
            color: var(--accent);
        }
        .badge-hot {
            background: #FFE8E8;
            color: #D32F2F;
        }
        .badge-new {
            background: #E6F7E6;
            color: #2E7D32;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-item {
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            background: var(--bg-alt);
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tag-item:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ===== Hero / 内页横幅 ===== */
        .page-hero {
            padding: 80px 0 72px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0F1A2A 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 24px;
        }
        .page-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-hero .hero-meta i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== 分类入口条 ===== */
        .cat-bar {
            background: #fff;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: var(--header-h);
            z-index: 100;
        }
        .cat-bar-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .cat-bar-inner::-webkit-scrollbar {
            display: none;
        }
        .cat-bar a {
            flex-shrink: 0;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            background: var(--bg-alt);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .cat-bar a:hover,
        .cat-bar a.active {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ===== 评测列表 ===== */
        .review-card {
            display: flex;
            gap: 24px;
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            padding: 0;
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .review-card .review-img {
            flex: 0 0 280px;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }
        .review-card .review-body {
            flex: 1;
            padding: 24px 24px 24px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .review-card .review-body .card-title {
            font-size: 20px;
        }
        .review-card .review-body .card-text {
            font-size: 15px;
        }
        .review-score {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .review-score i {
            font-size: 12px;
        }

        /* ===== 评测对比/数据块 ===== */
        .compare-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .compare-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .compare-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .compare-item .num {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .compare-item .label {
            font-size: 15px;
            color: var(--text-light);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
        }
        .faq-item:first-child {
            padding-top: 0;
        }
        .faq-q {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            padding: 4px 0;
        }
        .faq-q i {
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
        }
        .faq-q[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-a {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            padding-top: 10px;
            display: none;
        }
        .faq-a.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
            padding: 72px 0;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 17px;
            opacity: 0.9;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
        }
        .cta-section .btn:hover {
            background: transparent;
            color: #fff;
            border-color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-social a {
            display: inline-flex;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.6);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-right: 8px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 移动端断点 ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .review-card .review-img {
                flex: 0 0 200px;
            }
            .compare-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }
            :root {
                --header-h: 64px;
            }
            .nav-main {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px 24px;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10);
                gap: 6px;
                display: none;
                border-bottom: 1px solid var(--border);
            }
            .nav-main.open {
                display: flex;
            }
            .nav-main a {
                padding: 10px 0;
                font-size: 16px;
            }
            .nav-toggle {
                display: flex;
            }
            .header-cta span {
                display: none;
            }
            .header-cta i {
                margin: 0;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .review-card {
                flex-direction: column;
            }
            .review-card .review-img {
                flex: 0 0 auto;
                width: 100%;
                aspect-ratio: 16 / 9;
            }
            .review-card .review-body {
                padding: 16px 20px 20px;
            }
            .compare-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
            .cat-bar {
                top: var(--header-h);
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 22px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .header-inner {
                padding: 0 16px;
            }
            .page-hero .hero-meta {
                flex-direction: column;
                gap: 8px;
            }
            .review-score {
                font-size: 12px;
                padding: 2px 12px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-a.open {
            display: block;
        }