/* roulang page: index */
:root {
            --primary: #0b1f3a;
            --primary-light: #16324f;
            --primary-dark: #071226;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --accent-soft: #fef3c7;
            --bg: #f1f5f9;
            --bg-deep: #0b1f3a;
            --white: #ffffff;
            --text: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.12);
            --transition: all 0.3s ease;
            --spacing-section: 96px;
            --container-width: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-bg {
            background: var(--white);
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-head h2 {
            font-size: 38px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
        }
        .section-tag {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
            justify-content: center;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 4px 15px rgba(245, 158, 11, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
        }
        .btn-outline {
            background: transparent;
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--white);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 42px;
            font-size: 16px;
        }
        .btn-dark {
            background: var(--primary);
            color: var(--white);
        }
        .btn-dark:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            color: var(--white);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 50px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            letter-spacing: 0.5px;
        }
        .badge-accent {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
        }
        .section-tag-solid {
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: 50px;
            letter-spacing: 1px;
            margin-bottom: 16px;
            display: inline-block;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
            position: relative;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
        }
        .logo-mark {
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            font-size: 20px;
            font-weight: 900;
            box-shadow: 0 4px 12px rgba(11, 31, 58, 0.25);
        }
        .logo-text {
            font-size: 20px;
            line-height: 1.2;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 36px;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            padding: 10px 4px;
            position: relative;
            color: var(--text);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
            transition: var(--transition);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link i {
            font-size: 11px;
            color: var(--text-light);
            transition: var(--transition);
        }
        .nav-item:hover .nav-link i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .dropdown-panel {
            position: absolute;
            top: calc(100% + 14px);
            left: 50%;
            transform: translateX(-50%) translateY(10px);
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            padding: 24px;
            min-width: 520px;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .nav-item:hover .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .dropdown-panel::before {
            content: '';
            position: absolute;
            top: -8px;
            left: 50%;
            transform: translateX(-50%) rotate(45deg);
            width: 16px;
            height: 16px;
            background: var(--white);
            border-left: 1px solid var(--border);
            border-top: 1px solid var(--border);
        }
        .dropdown-inner {
            display: grid;
            grid-template-columns: 1fr 200px;
            gap: 24px;
        }
        .dropdown-col {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .dropdown-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 6px;
        }
        .dropdown-col a {
            padding: 8px 12px;
            border-radius: 8px;
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
        }
        .dropdown-col a:hover {
            background: var(--bg);
            color: var(--accent-hover);
        }
        .dropdown-feature {
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg);
        }
        .dropdown-feature img {
            width: 100%;
            height: 120px;
            object-fit: cover;
        }
        .dropdown-feature p {
            padding: 12px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .header-actions {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-shrink: 0;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 1002;
        }
        .mobile-toggle span {
            width: 24px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: var(--transition);
        }
        .mobile-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 320px;
            height: 100vh;
            background: var(--white);
            z-index: 1001;
            padding: 100px 24px 40px;
            box-shadow: var(--shadow-lg);
            transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            flex-direction: column;
            gap: 16px;
        }
        .mobile-menu.open {
            right: 0;
        }
        .mobile-menu a {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            padding: 14px 16px;
            border-radius: var(--radius-sm);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: var(--bg);
            color: var(--accent-hover);
        }
        .mobile-menu .mobile-sub {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding-left: 20px;
        }
        .mobile-menu .mobile-sub a {
            font-size: 15px;
            padding: 10px 16px;
            color: var(--text-muted);
        }
        .mobile-menu .btn-mobile {
            margin-top: 16px;
            text-align: center;
        }
        .hero {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: var(--white);
            min-height: 640px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 31, 58, 0.92) 0%, rgba(11, 31, 58, 0.72) 50%, rgba(245, 158, 11, 0.25) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 1;
            padding: 80px 24px;
        }
        .hero-content {
            max-width: 720px;
        }
        .hero h1 {
            font-size: 56px;
            line-height: 1.15;
            font-weight: 900;
            margin: 20px 0 16px;
            letter-spacing: -1px;
        }
        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }
        .hero-stats {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-stat .num {
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
            display: block;
        }
        .hero-stat .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
        }
        .features {
            background: var(--white);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .feature-card:hover {
            background: var(--white);
            border-color: var(--border);
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 24px;
            box-shadow: 0 8px 24px rgba(11, 31, 58, 0.25);
        }
        .feature-card:nth-child(2) .feature-icon {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
        }
        .feature-card:nth-child(3) .feature-icon {
            background: linear-gradient(135deg, var(--primary), #1e4a6d);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
        }
        .category-highlight {
            background: var(--bg);
        }
        .highlight-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 32px;
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .highlight-main {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
        }
        .highlight-main img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .highlight-main .overlay {
            position: relative;
            z-index: 1;
            padding: 40px;
            width: 100%;
            background: linear-gradient(to top, rgba(11, 31, 58, 0.88), transparent);
            color: var(--white);
        }
        .highlight-main .overlay h3 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .highlight-main .overlay p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 16px;
        }
        .highlight-main .overlay a {
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
        }
        .highlight-sub {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .sub-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            display: flex;
            align-items: flex-end;
            min-height: 150px;
            transition: var(--transition);
            border: 1px solid var(--border);
            background: var(--white);
        }
        .sub-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .sub-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .sub-card h4 {
            position: relative;
            z-index: 1;
            padding: 16px;
            font-size: 14px;
            color: var(--white);
            background: linear-gradient(to top, rgba(11, 31, 58, 0.8), transparent);
            width: 100%;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .news-cat {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent-hover);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 16px;
            align-self: flex-start;
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-card h3 a:hover {
            color: var(--accent-hover);
        }
        .news-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }
        .news-meta time {
            font-size: 13px;
            color: var(--text-light);
        }
        .news-meta a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .news-meta a:hover {
            color: var(--accent-hover);
        }
        .empty-tip {
            text-align: center;
            padding: 60px 20px;
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
            color: var(--text-muted);
            font-size: 16px;
        }
        .stats-section {
            background: var(--bg-deep);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.12);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }
        .stat-item {
            text-align: center;
            padding: 24px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }
        .stat-num {
            font-size: 44px;
            font-weight: 900;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 8px;
            display: block;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .step-item {
            text-align: center;
            padding: 40px 28px;
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-num {
            display: inline-flex;
            width: 56px;
            height: 56px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 24px;
            box-shadow: 0 8px 20px rgba(11, 31, 58, 0.25);
        }
        .step-item:nth-child(2) .step-num {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .step-item p {
            color: var(--text-muted);
            font-size: 14px;
        }
        .faq-section {
            background: var(--white);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            padding: 24px 28px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border);
            background: var(--white);
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            font-size: 17px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            color: var(--text);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 24px;
            color: var(--accent);
            font-weight: 700;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }
        .faq-item p {
            color: var(--text-muted);
            font-size: 15px;
            padding-top: 12px;
            line-height: 1.7;
        }
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--accent) 0%, #fbbf24 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
        }
        .cta-box {
            text-align: center;
            position: relative;
            z-index: 1;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-box h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 12px;
        }
        .cta-box p {
            color: rgba(11, 31, 58, 0.7);
            font-size: 16px;
            margin-bottom: 28px;
        }
        .cta-box .btn {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 8px 20px rgba(11, 31, 58, 0.2);
        }
        .cta-box .btn:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
        }
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 72px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-links h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 20px;
        }
        .footer-links a {
            display: block;
            padding: 6px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-contact h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 20px;
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 8px;
        }
        .footer-contact a {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .backtop {
            position: fixed;
            bottom: 40px;
            right: 40px;
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 999;
        }
        .backtop.show {
            opacity: 1;
            visibility: visible;
        }
        .backtop:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-4px);
        }
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .highlight-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 992px) {
            .main-nav,
            .header-actions .btn-outline,
            .header-actions .btn-primary {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 64px;
            }
            .hero {
                min-height: 520px;
            }
            .hero h1 {
                font-size: 38px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat .num {
                font-size: 28px;
            }
            .section-head h2 {
                font-size: 30px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .highlight-sub {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .container {
                padding: 0 16px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-buttons .btn {
                width: 100%;
            }
            .cta-box h2 {
                font-size: 28px;
            }
        }
        @media (max-width: 520px) {
            .highlight-sub {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .logo-text {
                font-size: 17px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-stat .num {
                font-size: 24px;
            }
            .dropdown-panel {
                display: none;
            }
        }

/* roulang page: article */
:root {
            --primary: #1b3a6b;
            --primary-dark: #12294d;
            --primary-light: #2a54a0;
            --accent: #ff7a2f;
            --accent-dark: #e5641c;
            --accent-light: #ffa366;
            --bg-body: #f4f7fb;
            --bg-white: #ffffff;
            --bg-soft: #eef2f8;
            --text-dark: #182234;
            --text-body: #3e4c63;
            --text-muted: #7c8ba1;
            --border: #e2e8f2;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --radius-pill: 100px;
            --shadow-xs: 0 1px 3px rgba(20, 35, 60, 0.05);
            --shadow-sm: 0 3px 14px rgba(20, 35, 60, 0.06);
            --shadow-md: 0 8px 28px rgba(20, 35, 60, 0.09);
            --shadow-lg: 0 16px 48px rgba(20, 35, 60, 0.14);
            --container-w: 1200px;
            --gutter: 24px;
            --header-h: 76px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.75;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
        }

        ul,
        ol {
            list-style-position: inside;
        }

        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding-left: var(--gutter);
            padding-right: var(--gutter);
        }

        .section-title {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            line-height: 1.3;
        }

        .section-title span {
            color: var(--accent);
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            margin-top: 10px;
            max-width: 640px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
            letter-spacing: 0.2px;
        }

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 5px 18px rgba(255, 122, 47, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(255, 122, 47, 0.42);
            color: #fff;
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.55);
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            transform: translateY(-3px);
        }

        .btn-dark {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 5px 18px rgba(27, 58, 107, 0.25);
        }

        .btn-dark:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(27, 58, 107, 0.3);
            color: #fff;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 242, 0.7);
            height: var(--header-h);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 32px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(27, 58, 107, 0.3);
        }

        .logo-text {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-body);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-link i {
            font-size: 0.75rem;
            transition: transform 0.3s ease;
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: var(--primary);
            background: var(--bg-soft);
        }

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(27, 58, 107, 0.22);
        }

        .nav-item {
            position: relative;
        }

        .nav-item:hover .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .nav-item:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-panel {
            position: absolute;
            top: calc(100% + 14px);
            left: 0;
            min-width: 420px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all 0.3s ease;
            z-index: 1000;
        }

        .dropdown-panel::before {
            content: "";
            position: absolute;
            top: -14px;
            left: 0;
            right: 0;
            height: 14px;
        }

        .dropdown-inner {
            display: grid;
            grid-template-columns: 1fr 200px;
            gap: 0px;
            padding: 18px;
        }

        .dropdown-col {
            display: flex;
            flex-direction: column;
            gap: 4px;
            padding-right: 18px;
        }

        .dropdown-col a {
            padding: 9px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            transition: all 0.2s;
        }

        .dropdown-col a:hover {
            background: var(--bg-soft);
            color: var(--primary);
            padding-left: 18px;
        }

        .dropdown-title {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            padding: 6px 14px 4px;
        }

        .dropdown-feature {
            background: var(--bg-soft);
            border-radius: var(--radius-sm);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .dropdown-feature img {
            width: 100%;
            height: 90px;
            object-fit: cover;
        }

        .dropdown-feature p {
            padding: 10px 12px;
            font-size: 0.82rem;
            color: var(--text-body);
            line-height: 1.5;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .btn-header {
            padding: 9px 22px;
            font-size: 0.88rem;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(27, 58, 107, 0.2);
        }

        .btn-header:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(27, 58, 107, 0.28);
            color: #fff;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            cursor: pointer;
        }

        .mobile-toggle span {
            width: 24px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .mobile-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .mobile-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .article-banner {
            position: relative;
            padding: 72px 0 100px;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            color: #fff;
            text-align: center;
        }

        .article-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 41, 77, 0.88), rgba(27, 58, 107, 0.68));
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.2s;
        }

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

        .breadcrumb i {
            font-size: 0.65rem;
            opacity: 0.6;
        }

        .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            margin-bottom: 18px;
            box-shadow: 0 4px 14px rgba(255, 122, 47, 0.4);
        }

        .article-banner h1 {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.35;
            max-width: 720px;
            margin: 0 auto 16px;
            letter-spacing: 0.3px;
        }

        .banner-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.85);
            flex-wrap: wrap;
        }

        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .banner-meta i {
            color: var(--accent-light);
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 40px;
            margin-top: -50px;
            position: relative;
            z-index: 3;
            padding-bottom: 70px;
            padding-top: 20px;
        }

        .article-main {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 48px;
        }

        .article-head {
            padding-bottom: 28px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 30px;
        }

        .article-head h1 {
            font-size: 1.7rem;
            font-weight: 800;
            line-height: 1.4;
            color: var(--text-dark);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

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

        .article-meta i {
            color: var(--accent);
            font-size: 0.85rem;
        }

        .article-cover {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 32px;
            position: relative;
        }

        .article-cover img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }

        .article-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, transparent 55%, rgba(18, 41, 77, 0.18));
            pointer-events: none;
        }

        .article-content {
            font-size: 1.02rem;
            line-height: 1.9;
            color: var(--text-body);
        }

        .article-content p {
            margin-bottom: 1.4em;
        }

        .article-content h2 {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-dark);
            margin: 1.8em 0 0.8em;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--bg-soft);
            letter-spacing: -0.2px;
        }

        .article-content h3 {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 1.5em 0 0.6em;
        }

        .article-content ul,
        .article-content ol {
            margin-bottom: 1.4em;
            padding-left: 24px;
        }

        .article-content li {
            margin-bottom: 0.6em;
        }

        .article-content ul li::marker {
            color: var(--accent);
        }

        .article-content ol li::marker {
            color: var(--primary);
            font-weight: 700;
        }

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-soft);
            padding: 18px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.6em 0;
            font-style: italic;
            color: var(--text-dark);
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: 1.6em 0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6em 0;
            font-size: 0.94rem;
        }

        .article-content table th {
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            font-weight: 600;
            text-align: left;
        }

        .article-content table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
        }

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

        .article-tags {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-soft);
            color: var(--primary);
            border: 1px solid var(--border);
            padding: 5px 15px;
            border-radius: var(--radius-pill);
            font-size: 0.83rem;
            font-weight: 500;
            transition: all 0.25s ease;
        }

        .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .article-empty {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 80px 40px;
            text-align: center;
        }

        .article-empty .empty-icon {
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 24px;
            color: var(--accent);
            font-size: 2rem;
        }

        .article-empty h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 26px;
            border: 1px solid var(--border);
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--accent);
            font-size: 0.95rem;
        }

        .sidebar-links {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .sidebar-links a {
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-body);
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            gap: 9px;
        }

        .sidebar-links a::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
            opacity: 0.7;
        }

        .sidebar-links a:hover {
            background: var(--bg-soft);
            color: var(--primary);
            padding-left: 18px;
        }

        .sidebar-feature {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-md);
            padding: 28px 24px;
            color: #fff;
            position: relative;
            overflow: hidden;
            border: none;
        }

        .sidebar-feature::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 122, 47, 0.18);
        }

        .sidebar-feature h3 {
            font-size: 1.05rem;
            font-weight: 800;
            margin-bottom: 10px;
            color: #fff;
        }

        .sidebar-feature p {
            font-size: 0.87rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 20px;
        }

        .sidebar-feature .btn {
            width: 100%;
            font-size: 0.85rem;
            padding: 10px 20px;
        }

        .sidebar-mini-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .sidebar-mini-card img {
            width: 100%;
            height: 120px;
            object-fit: cover;
        }

        .sidebar-mini-body {
            padding: 18px 22px 22px;
        }

        .sidebar-mini-body h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .sidebar-mini-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .sidebar-mini-body .btn {
            padding: 7px 18px;
            font-size: 0.82rem;
        }

        .related-section {
            background: var(--bg-white);
            padding: 80px 0;
        }

        .related-header {
            text-align: center;
            margin-bottom: 50px;
        }

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

        .related-card {
            background: var(--bg-body);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .related-card img {
            height: 190px;
            width: 100%;
            object-fit: cover;
        }

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

        .related-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .related-card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .related-card-link {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.25s ease;
        }

        .related-card-link:hover {
            color: var(--accent);
            gap: 12px;
        }

        .faq-section {
            padding: 80px 0;
            background: var(--bg-body);
        }

        .faq-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-xs);
        }

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

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

        .faq-question {
            width: 100%;
            padding: 22px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            background: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            text-align: left;
            transition: color 0.25s ease;
        }

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

        .faq-question i {
            color: var(--accent);
            font-size: 0.85rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 22px;
        }

        .cta-section {
            position: relative;
            padding: 90px 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(18, 41, 77, 0.9), rgba(27, 58, 107, 0.75));
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .cta-inner p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 70px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
            gap: 44px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-brand .logo-mark {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            box-shadow: 0 4px 14px rgba(255, 122, 47, 0.35);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
        }

        .footer-links h4,
        .footer-contact h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.4px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: all 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-contact a {
            color: rgba(255, 255, 255, 0.6);
        }

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

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: minmax(0, 1fr) 270px;
                gap: 28px;
            }

            .article-main {
                padding: 32px;
            }

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

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

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }

            .header-inner {
                gap: 12px;
            }

            .logo-text {
                font-size: 1rem;
            }

            .logo-mark {
                width: 36px;
                height: 36px;
                font-size: 1rem;
                border-radius: 10px;
            }

            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.4s ease;
                z-index: 1000;
                border-bottom: 1px solid var(--border);
                max-height: calc(100vh - var(--header-h));
                overflow-y: auto;
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-link {
                width: 100%;
                justify-content: space-between;
                padding: 14px 16px;
            }

            .nav-item {
                width: 100%;
            }

            .dropdown-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                min-width: 0;
                box-shadow: none;
                border-radius: 0;
                border: none;
                margin-top: 4px;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease, padding 0.3s ease;
                padding: 0;
            }

            .nav-item.open .dropdown-panel {
                max-height: 400px;
                padding: 10px 0;
            }

            .dropdown-inner {
                grid-template-columns: 1fr;
                padding: 10px;
            }

            .dropdown-col {
                padding-right: 0;
            }

            .dropdown-feature {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .btn-header {
                display: none;
            }

            .article-banner {
                padding: 54px 0 90px;
                background-attachment: scroll;
            }

            .article-banner h1 {
                font-size: 1.4rem;
            }

            .banner-meta {
                gap: 12px;
                font-size: 0.8rem;
            }

            .article-layout {
                grid-template-columns: 1fr;
                margin-top: -34px;
                gap: 28px;
                padding-bottom: 50px;
            }

            .article-main {
                padding: 22px;
                border-radius: var(--radius-md);
            }

            .article-head h1 {
                font-size: 1.3rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.8rem;
            }

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

            .faq-section,
            .related-section {
                padding: 55px 0;
            }

            .cta-section {
                padding: 60px 0;
            }

            .cta-inner h2 {
                font-size: 1.5rem;
            }

            .cta-buttons .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-brand p {
                max-width: none;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .article-layout {
                margin-top: -26px;
            }

            .article-main {
                padding: 18px;
            }

            .banner-meta {
                flex-direction: column;
                gap: 6px;
            }

            .article-content {
                font-size: 0.95rem;
            }

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

            .faq-question {
                font-size: 0.92rem;
                padding: 18px;
            }

            .faq-answer {
                font-size: 0.86rem;
                padding: 0 18px;
            }

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

            .section-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 400px) {
            .logo-text {
                font-size: 0.9rem;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0f2b46;
            --color-primary-light: #1c3f5e;
            --color-primary-dark: #081d30;
            --color-accent: #e63946;
            --color-accent-dark: #c92534;
            --color-bg: #f4f6f9;
            --color-white: #ffffff;
            --color-text: #1a1d24;
            --color-text-light: #68748a;
            --color-border: #e3e7ee;
            --color-warm: #fff8f0;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 9px;
            --shadow-sm: 0 2px 10px rgba(15, 43, 70, 0.05);
            --shadow-md: 0 8px 28px rgba(15, 43, 70, 0.09);
            --shadow-lg: 0 18px 50px rgba(15, 43, 70, 0.14);
            --shadow-accent: 0 8px 24px rgba(230, 57, 70, 0.28);
            --space-section: 100px;
            --container-max: 1200px;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        *,
        *::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);
            background: var(--color-bg);
            color: var(--color-text);
            font-size: 16px;
            line-height: 1.75;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            display: block;
            border-radius: 8px;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            font-size: 100%;
        }

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

        .section-padding {
            padding: var(--space-section) 0;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
        }

        .btn-primary:hover {
            background: var(--color-accent-dark);
            transform: translateY(-3px);
            box-shadow: var(--shadow-accent);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.85);
            color: #fff;
        }

        .btn-outline:hover {
            background: #fff;
            color: var(--color-primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .btn-dark {
            background: var(--color-primary);
            color: #fff;
        }

        .btn-dark:hover {
            background: var(--color-primary-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 14px;
            border-radius: 10px;
        }

        /* ===== 头部 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 78px;
            gap: 32px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(15, 43, 70, 0.2);
        }

        .brand-text {
            font-size: 21px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 18px;
            border-radius: 11px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-link i {
            font-size: 12px;
            opacity: 0.75;
            transition: transform 0.25s;
        }

        .nav-link:hover {
            background: rgba(15, 43, 70, 0.06);
            color: var(--color-primary);
            border-color: rgba(15, 43, 70, 0.05);
        }

        .nav-link:hover i {
            transform: rotate(180deg);
        }

        .nav-link.active {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(15, 43, 70, 0.22);
        }

        .nav-item {
            position: relative;
        }

        .dropdown-panel {
            position: absolute;
            top: calc(100% + 14px);
            left: 0;
            min-width: 560px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 24px;
            border: 1px solid var(--color-border);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px) scale(0.98);
            transition: var(--transition);
            z-index: 1200;
        }

        .nav-item:hover .dropdown-panel,
        .nav-item:focus-within .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0) scale(1);
        }

        .dropdown-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .dropdown-col {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .dropdown-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-text-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--color-border);
        }

        .dropdown-col a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 9px 12px;
            border-radius: 9px;
            color: var(--color-text);
            font-size: 15px;
            transition: var(--transition);
        }

        .dropdown-col a::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-accent);
            flex-shrink: 0;
            opacity: 0;
            transition: var(--transition);
        }

        .dropdown-col a:hover {
            background: rgba(15, 43, 70, 0.05);
            color: var(--color-primary);
            padding-left: 16px;
        }

        .dropdown-col a:hover::before {
            opacity: 1;
        }

        .dropdown-feature {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--color-border);
        }

        .dropdown-feature img {
            width: 100%;
            height: 130px;
            object-fit: cover;
            border-radius: 0;
        }

        .dropdown-feature p {
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.6;
            background: #fff;
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--color-bg);
            border-radius: 30px;
            padding: 6px 6px 6px 18px;
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .header-search:focus-within {
            border-color: var(--color-primary);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }

        .header-search input {
            background: transparent;
            border: none;
            font-size: 14px;
            width: 130px;
            color: var(--color-text);
        }

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

        .header-search button {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .header-search button:hover {
            background: var(--color-accent);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--color-bg);
            color: var(--color-primary);
            font-size: 20px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(15, 43, 70, 0.1);
        }

        /* ===== 分类页 Hero ===== */
        .page-hero {
            position: relative;
            padding: 130px 0 120px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-color: var(--color-primary);
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 29, 48, 0.94) 0%, rgba(15, 43, 70, 0.8) 60%, rgba(28, 63, 94, 0.62) 100%);
        }

        .page-hero::after {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.14);
            top: -160px;
            right: -100px;
            filter: blur(10px);
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            letter-spacing: 0.3px;
        }

        .breadcrumb a {
            transition: var(--transition);
            color: rgba(255, 255, 255, 0.85);
        }

        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .breadcrumb i {
            font-size: 11px;
        }

        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 2px;
            line-height: 1.25;
            margin-bottom: 18px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
        }

        .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.9;
        }

        .hero-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
        }

        .hero-tags span {
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: #fff;
            padding: 7px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }

        .hero-tags span:hover {
            background: rgba(255, 255, 255, 0.28);
            transform: translateY(-2px);
        }

        /* ===== 分类介绍 + 数据 ===== */
        .intro-section {
            margin-top: -60px;
            position: relative;
            z-index: 3;
            padding-bottom: 80px;
        }

        .intro-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 56px;
            border: 1px solid var(--color-border);
            position: relative;
            overflow: hidden;
        }

        .intro-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--color-accent), #ff8a5c, transparent);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
        }

        .intro-content h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.3;
            margin-bottom: 18px;
        }

        .intro-content h2 em {
            font-style: normal;
            color: var(--color-accent);
        }

        .intro-content p {
            color: var(--color-text-light);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .intro-list {
            list-style: none;
            margin: 24px 0 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 18px;
            background: var(--color-bg);
            border-radius: var(--radius-md);
            border-left: 3px solid var(--color-accent);
            transition: var(--transition);
        }

        .intro-list li:hover {
            background: #fff;
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .intro-list li i {
            color: var(--color-accent);
            font-size: 18px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .intro-list li span {
            font-weight: 600;
            color: var(--color-primary);
        }

        .intro-image {
            position: relative;
        }

        .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }

        .intro-image:hover img {
            transform: scale(1.02);
            box-shadow: var(--shadow-lg);
        }

        .intro-image::after {
            content: "";
            position: absolute;
            bottom: -18px;
            right: -18px;
            width: 140px;
            height: 140px;
            border-radius: 30px;
            background: var(--color-accent);
            z-index: -1;
            opacity: 0.14;
        }

        .stats-wrap {
            margin-top: 56px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 30px 20px;
            text-align: center;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 3px;
            background: var(--color-accent);
            transition: width 0.4s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .stat-card:hover::before {
            width: 100%;
        }

        .stat-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 14px;
            background: rgba(230, 57, 70, 0.1);
            color: var(--color-accent);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }

        .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .stat-number span {
            color: var(--color-accent);
        }

        .stat-label {
            margin-top: 8px;
            color: var(--color-text-light);
            font-size: 15px;
            font-weight: 500;
        }

        /* ===== 板块标题 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 30px;
            letter-spacing: 1px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .section-header p {
            color: var(--color-text-light);
            font-size: 16px;
            margin-top: 14px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 热门赛事卡片 ===== */
        .featured-section {
            background: #fff;
        }

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

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

        .card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .card-img {
            position: relative;
            height: 230px;
            overflow: hidden;
            border-radius: 0;
        }

        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            border-radius: 0;
        }

        .card:hover .card-img img {
            transform: scale(1.08);
        }

        .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 43, 70, 0.35) 0%, transparent 40%);
        }

        .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--color-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 30px;
            z-index: 2;
            box-shadow: 0 3px 10px rgba(230, 57, 70, 0.4);
            letter-spacing: 0.5px;
        }

        .card-category {
            position: absolute;
            bottom: 14px;
            left: 16px;
            z-index: 2;
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
        }

        .card-body {
            padding: 26px 26px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.4;
            transition: var(--transition);
        }

        .card:hover .card-body h3 {
            color: var(--color-accent);
        }

        .card-body p {
            font-size: 15px;
            color: var(--color-text-light);
            line-height: 1.75;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            margin-top: 18px;
            padding-top: 16px;
            border-top: 1px solid var(--color-border);
            color: var(--color-text-light);
            font-size: 13px;
        }

        .card-meta i {
            color: var(--color-accent);
            margin-right: 5px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 14px;
            transition: var(--transition);
        }

        .card-link i {
            transition: transform 0.25s;
        }

        .card-link:hover {
            color: var(--color-accent-dark);
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 观赛攻略 ===== */
        .guide-section {
            background: var(--color-bg);
        }

        .guide-layout {
            display: grid;
            grid-template-columns: 0.95fr 1.05fr;
            gap: 60px;
            align-items: center;
        }

        .guide-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .guide-image img {
            width: 100%;
            height: 440px;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.6s;
        }

        .guide-image:hover img {
            transform: scale(1.03);
        }

        .guide-image-box {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            padding: 18px 22px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .guide-image-box h3 {
            color: var(--color-primary);
            font-size: 16px;
            margin-bottom: 4px;
        }

        .guide-image-box p {
            color: var(--color-text-light);
            font-size: 14px;
        }

        .guide-content h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.4;
            margin-bottom: 14px;
        }

        .guide-content>p {
            color: var(--color-text-light);
            font-size: 16px;
            margin-bottom: 28px;
            line-height: 1.9;
        }

        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .guide-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px 22px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .guide-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230, 57, 70, 0.3);
        }

        .guide-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: rgba(15, 43, 70, 0.07);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .guide-item:hover .guide-icon {
            background: var(--color-accent);
            color: #fff;
        }

        .guide-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        .guide-item p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        /* ===== 运动项目百科 ===== */
        .sport-section {
            background: #fff;
        }

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

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

        .sport-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .sport-card .card-img {
            height: 180px;
        }

        .sport-card .card-img img {
            border-radius: 0;
        }

        .sport-card .card-img::after {
            background: linear-gradient(to top, rgba(15, 43, 70, 0.25), transparent);
        }

        .sport-card .card-body {
            padding: 22px;
        }

        .sport-card .card-body h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }

        .sport-card .card-body p {
            font-size: 14px;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .sport-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.08);
            color: var(--color-accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-bg);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 32px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }

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

        .faq-item::before {
            content: "Q";
            position: absolute;
            left: -14px;
            top: 26px;
            width: 32px;
            height: 32px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }

        .faq-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            padding-left: 6px;
        }

        .faq-item p {
            color: var(--color-text-light);
            font-size: 15px;
            line-height: 1.85;
            padding-left: 6px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 55%, var(--color-primary-light) 100%);
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.12);
            top: -200px;
            right: -100px;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            bottom: -140px;
            left: -60px;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-inner .section-tag {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .cta-inner h2 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 18px;
            letter-spacing: 1px;
            line-height: 1.3;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 17px;
            margin-bottom: 36px;
            line-height: 1.9;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.85);
            padding: 70px 0 0;
            border-top: 4px solid var(--color-accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-brand .logo-mark {
            background: var(--color-accent);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.35);
        }

        .footer-brand p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-links h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-links h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .footer-links a {
            display: block;
            padding: 6px 0;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.65);
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 8px;
        }

        .footer-contact h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-contact h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 0;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-contact p i {
            color: var(--color-accent);
            width: 20px;
            text-align: center;
        }

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

        .footer-bottom {
            text-align: center;
            padding: 24px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --space-section: 80px;
            }

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

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

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

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .intro-image img {
                height: 320px;
            }

            .guide-layout {
                grid-template-columns: 1fr;
                gap: 44px;
            }

            .guide-image img {
                height: 360px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }

            .dropdown-panel {
                min-width: 480px;
            }

            .header-search input {
                width: 100px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                position: relative;
            }

            .header-inner {
                height: 68px;
            }

            .brand-text {
                font-size: 18px;
            }

            .header-tools .header-search {
                display: none;
            }

            .header-tools .btn {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: absolute;
                top: 68px;
                left: 16px;
                right: 16px;
                background: #fff;
                border-radius: 18px;
                box-shadow: var(--shadow-lg);
                padding: 18px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                display: none;
                border: 1px solid var(--color-border);
                z-index: 1000;
            }

            .main-nav.open {
                display: flex;
                animation: fadeInDown 0.3s ease;
            }

            @keyframes fadeInDown {
                from {
                    opacity: 0;
                    transform: translateY(-10px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }

            .nav-link {
                padding: 14px 16px;
                font-size: 16px;
                border-radius: 12px;
            }

            .nav-item {
                display: flex;
                flex-direction: column;
            }

            .dropdown-panel {
                position: static;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                border-left: 3px solid var(--color-accent);
                border-radius: 0;
                min-width: 0;
                padding: 12px 0 4px 12px;
                margin-top: 8px;
            }

            .dropdown-inner {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .dropdown-feature {
                display: none;
            }

            .page-hero {
                padding: 90px 0 80px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .hero-sub {
                font-size: 16px;
            }

            .intro-card {
                padding: 40px 28px;
            }

            .intro-content h2 {
                font-size: 28px;
            }

            .section-header h2 {
                font-size: 30px;
            }

            .guide-content h2 {
                font-size: 28px;
            }

            .cta-inner h2 {
                font-size: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
                padding-bottom: 36px;
            }

            .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            :root {
                --space-section: 64px;
            }
            .container {
                padding: 0 18px;
            }

            .cards-grid {
                grid-template-columns: 1fr;
            }

            .sport-grid {
                grid-template-columns: 1fr;
            }

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

            .stat-card {
                padding: 22px 14px;
            }

            .stat-number {
                font-size: 32px;
            }

            .page-hero h1 {
                font-size: 29px;
                letter-spacing: 1px;
            }

            .hero-tags {
                gap: 8px;
            }

            .guide-item {
                flex-direction: column;
                gap: 12px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .cta-buttons .btn {
                width: 100%;
            }

            .intro-list li {
                flex-direction: column;
                gap: 8px;
            }

            .faq-item {
                padding: 24px 22px;
            }

            .faq-item::before {
                left: -8px;
            }

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

        /* 辅助 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            letter-spacing: 0.5px;
        }

        .text-accent {
            color: var(--color-accent);
        }