/* roulang page: index */
:root {
            --primary: #0e1f33;
            --primary-light: #1a3050;
            --primary-dark: #091729;
            --accent: #f0b90b;
            --accent-dark: #d4a106;
            --cyan: #0ea5e9;
            --text-main: #0f172a;
            --text-sub: #475569;
            --text-muted: #94a3b8;
            --bg-light: #f8fafc;
            --bg-dark: #0f1f35;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 40px rgba(14, 31, 51, 0.10);
            --shadow-lg: 0 24px 60px rgba(14, 31, 51, 0.16);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: #ffffff;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: var(--accent-dark);
        }

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            height: 72px;
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .brand {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .brand i {
            color: var(--accent);
            font-size: 22px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            position: relative;
            padding: 6px 2px;
            letter-spacing: 0.3px;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition);
        }

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

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            color: #0f172a;
            font-weight: 600;
            font-size: 15px;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 14px rgba(240, 185, 11, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(240, 185, 11, 0.45);
            color: #0f172a;
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            font-weight: 600;
            font-size: 15px;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 100px 0 90px;
            background: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(14, 31, 51, 0.92), rgba(9, 23, 41, 0.82)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            color: #ffffff;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(240, 185, 11, 0.12), transparent 70%);
            border-radius: 50%;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(240, 185, 11, 0.15);
            border: 1px solid rgba(240, 185, 11, 0.4);
            color: var(--accent);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .hero h1 span {
            color: var(--accent);
        }

        .hero p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 32px;
            max-width: 540px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero .btn-primary {
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            color: #0f172a;
            font-size: 16px;
            padding: 14px 32px;
        }

        .hero .btn-outline {
            border-color: rgba(255, 255, 255, 0.5);
            color: #ffffff;
        }

        .hero .btn-outline:hover {
            background: #ffffff;
            color: var(--primary);
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
        }

        .hero-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 20px;
            padding: 32px;
            backdrop-filter: blur(10px);
            width: 100%;
            max-width: 400px;
        }

        .hero-card .card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .hero-card .status {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: #a5f3fc;
        }

        .hero-card .status-dot {
            width: 8px;
            height: 8px;
            background: #22c55e;
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .hero-card .metric-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .hero-card .metric {
            background: rgba(255, 255, 255, 0.06);
            border-radius: 12px;
            padding: 16px;
            text-align: center;
        }

        .hero-card .metric .num {
            font-size: 24px;
            font-weight: 700;
            color: var(--accent);
        }

        .hero-card .metric .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .hero-card .progress-bar {
            margin-top: 20px;
            padding: 16px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 12px;
        }

        .hero-card .progress-bar .bar {
            height: 6px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            overflow: hidden;
            margin-top: 10px;
        }

        .hero-card .progress-bar .fill {
            height: 100%;
            width: 92%;
            background: linear-gradient(90deg, var(--accent), #fbbf24);
            border-radius: 10px;
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 90px 0;
        }

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

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

        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section-header .tag {
            display: inline-block;
            font-size: 13px;
            color: var(--accent-dark);
            background: rgba(240, 185, 11, 0.1);
            border: 1px solid rgba(240, 185, 11, 0.3);
            padding: 5px 14px;
            border-radius: 50px;
            margin-bottom: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .section-dark .section-header h2 {
            color: #ffffff;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.7;
        }

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

        /* ===== 统计卡片 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: -50px;
            z-index: 5;
            position: relative;
        }

        .stat-card {
            background: #ffffff;
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition);
        }

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

        .stat-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 22px;
            background: rgba(14, 31, 51, 0.06);
            color: var(--primary);
        }

        .stat-card .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-card .label {
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 6px;
        }

        /* ===== 服务卡片 ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .service-card {
            background: #ffffff;
            border-radius: var(--radius);
            padding: 36px 28px;
            border: 1px solid var(--border);
            box-shadow: 0 4px 16px rgba(14, 31, 51, 0.05);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--cyan));
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(240, 185, 11, 0.3);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .service-card p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .service-card .link-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .service-card .link-more i {
            font-size: 12px;
            transition: var(--transition);
        }

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

        /* ===== 流程 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
        }

        .steps::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--border), var(--accent), var(--border));
            z-index: 0;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-num {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: #ffffff;
            border: 2px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 auto 20px;
            box-shadow: 0 4px 14px rgba(240, 185, 11, 0.25);
            background: #ffffff;
        }

        .step-item h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ===== 资讯卡片 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: #ffffff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(14, 31, 51, 0.04);
        }

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

        .news-card .featured-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

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

        .news-card:hover .featured-img img {
            transform: scale(1.04);
        }

        .news-card .card-body {
            padding: 24px;
        }

        .news-card .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .news-card .meta .cat {
            background: rgba(14, 31, 51, 0.06);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 500;
        }

        .news-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== 图文区块 ===== */
        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .split-block .text-side .tag {
            display: inline-block;
            font-size: 13px;
            color: var(--accent-dark);
            background: rgba(240, 185, 11, 0.1);
            border: 1px solid rgba(240, 185, 11, 0.3);
            padding: 5px 14px;
            border-radius: 50px;
            margin-bottom: 16px;
            font-weight: 500;
        }

        .split-block .text-side h2 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
        }

        .split-block .text-side p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .check-list {
            list-style: none;
            padding: 0;
        }

        .check-list li {
            padding: 8px 0;
            font-size: 15px;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .check-list li i {
            color: #22c55e;
            font-size: 14px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(34, 197, 94, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .feature-img {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }

        .feature-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(14, 31, 51, 0.3));
            pointer-events: none;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(240, 185, 11, 0.4);
            box-shadow: var(--shadow);
        }

        .faq-item summary {
            padding: 22px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            list-style: none;
            color: var(--text-main);
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 24px;
            font-weight: 400;
            color: var(--accent-dark);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-item .faq-body {
            padding: 0 24px 22px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-band {
            background: linear-gradient(120deg, var(--bg-dark), var(--primary-light));
            border-radius: 24px;
            padding: 60px 48px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(240, 185, 11, 0.2), transparent 70%);
            border-radius: 50%;
        }

        .cta-band h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }

        .cta-band p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 2;
        }

        .cta-band .btn-primary {
            font-size: 16px;
            padding: 14px 36px;
            position: relative;
            z-index: 2;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding-top: 64px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            color: #ffffff;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-col h4::after {
            content: '';
            display: block;
            width: 24px;
            height: 2px;
            background: var(--accent);
            margin-top: 8px;
            border-radius: 2px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            padding: 6px 0;
            transition: var(--transition);
        }

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

        .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 24px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }

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

        /* ===== 内页Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(135deg, var(--bg-dark), var(--primary-light)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #ffffff;
            text-align: center;
        }

        .page-banner h1 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .page-banner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto;
        }

        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }

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

        .breadcrumb i {
            font-size: 10px;
        }

        /* ===== 分类页卡片 ===== */
        .cat-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .cat-card {
            background: #ffffff;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: 0 4px 16px rgba(14, 31, 51, 0.04);
            transition: var(--transition);
        }

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

        .cat-card .img-wrap {
            height: 160px;
            overflow: hidden;
        }

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

        .cat-card:hover .img-wrap img {
            transform: scale(1.05);
        }

        .cat-card .content {
            padding: 24px;
        }

        .cat-card .content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cat-card .content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .cat-card .content .btn-sm {
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== 特征列表 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .feature-item {
            background: #ffffff;
            border-radius: var(--radius);
            padding: 28px;
            display: flex;
            gap: 20px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .feature-item .f-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(14, 31, 51, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }

        .feature-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .feature-item p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ===== 文章详情 ===== */
        .article-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .article-body {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-sub);
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 40px 0 16px;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin: 28px 0 12px;
        }

        .article-body p {
            margin-bottom: 20px;
        }

        .article-body img {
            border-radius: 16px;
            margin: 24px 0;
        }

        .article-body ul {
            margin: 16px 0 24px;
            padding-left: 20px;
        }

        .article-body ul li {
            padding: 4px 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-visual {
                order: -1;
            }

            .hero-card {
                max-width: 100%;
            }

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

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

            .steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }

            .steps::before {
                display: none;
            }

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

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

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

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

            .mobile-toggle {
                display: block;
            }

            .main-nav.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #ffffff;
                padding: 24px;
                gap: 16px;
                box-shadow: 0 20px 40px rgba(14, 31, 51, 0.1);
                border-bottom: 1px solid var(--border);
                align-items: flex-start;
            }

            .hero {
                padding: 70px 0;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero p {
                font-size: 15px;
            }

            .section {
                padding: 60px 0;
            }

            .section-header h2 {
                font-size: 28px;
            }

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

            .services-grid,
            .news-grid,
            .cat-cards {
                grid-template-columns: 1fr;
            }

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

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

            .cta-band {
                padding: 40px 24px;
            }

            .cta-band h2 {
                font-size: 26px;
            }

            .page-banner h1 {
                font-size: 30px;
            }

            .nav-actions .btn-outline {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero h1 {
                font-size: 26px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                justify-content: center;
            }

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

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

            .hero-card {
                padding: 20px;
            }

            .brand {
                font-size: 20px;
            }
        }

        /* ===== 覆盖Tailwind默认聚焦样式 ===== */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* 空状态样式 */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 15px;
        }

        /* 搜索结果框 */
        .search-box {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            padding: 4px 4px 4px 16px;
            transition: var(--transition);
        }

        .search-box input {
            background: transparent;
            border: none;
            color: #ffffff;
            padding: 8px 8px;
            width: 160px;
            font-size: 14px;
            transition: var(--transition);
        }

        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .search-box input:focus {
            width: 200px;
        }

        .search-box button {
            background: var(--accent);
            border: none;
            border-radius: 50px;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0f172a;
            cursor: pointer;
            transition: var(--transition);
        }

        .search-box button:hover {
            background: #fbbf24;
        }

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

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #60a5fa;
            --accent: #06b6d4;
            --bg: #f8fafc;
            --dark-bg: #0f172a;
            --text: #1e293b;
            --muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 32px rgba(15, 23, 42, 0.12);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

        button {
            cursor: pointer;
        }

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

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* 导航 */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 32px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
        }

        .brand-logo i {
            color: var(--primary);
            font-size: 24px;
        }

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

        .main-nav a {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--muted);
            transition: all 0.25s ease;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.08);
        }

        .main-nav a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-cta .btn-outline {
            padding: 8px 18px;
            border-radius: 999px;
            border: 1.5px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .header-cta .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(37, 99, 235, 0.04);
        }

        .header-cta .btn-primary {
            padding: 8px 20px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .header-cta .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text);
            padding: 6px;
            border-radius: 8px;
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark-bg);
            color: #94a3b8;
            padding: 64px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand i {
            color: var(--primary-light);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 14px;
            margin-bottom: 10px;
            transition: color 0.2s;
        }

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

        .footer-col p {
            font-size: 14px;
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.15);
            padding: 22px 0;
            text-align: center;
            font-size: 14px;
            color: #6b7b94;
        }

        /* Hero */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.35;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15,23,42,0.88) 0%, rgba(15,23,42,0.45) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 72px 0;
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(96, 165, 250, 0.15);
            border: 1px solid rgba(96, 165, 250, 0.3);
            color: #bfdbfe;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero-content h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .hero-content p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.8;
            max-width: 560px;
        }

        /* 板块 */
        .section {
            padding: 88px 0;
        }

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

        .section-tag {
            display: inline-block;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--muted);
            font-size: 16px;
            max-width: 640px;
            margin: 0 auto;
        }

        /* 卡片 */
        .service-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 36px 28px;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity 0.35s ease;
        }

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

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        .service-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
        }

        .service-card .card-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        /* 流程 */
        .process-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-top: 16px;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 0 12px;
        }

        .process-step .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.25);
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }

        .process-step::after {
            content: '\f054';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            top: 24px;
            right: -20px;
            color: var(--primary-light);
            font-size: 14px;
            opacity: 0.5;
        }

        .process-step:last-child::after {
            display: none;
        }

        /* 数据 */
        .stats-section {
            background: var(--dark-bg);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
        }

        .stats-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            backdrop-filter: blur(6px);
        }

        .stat-item .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .stat-item .stat-num span {
            color: var(--primary-light);
        }

        .stat-item .stat-label {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            margin-top: 8px;
        }

        /* 资讯卡片 */
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .news-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.35s ease;
        }

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

        .news-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

        .news-card:hover .card-img img {
            transform: scale(1.05);
        }

        .news-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.3));
        }

        .news-card .card-body {
            padding: 24px;
        }

        .news-card .card-tag {
            display: inline-block;
            background: rgba(37, 99, 235, 0.08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .news-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .news-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        .news-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 16px;
            font-size: 13px;
            color: var(--muted);
        }

        /* FAQ */
        .faq-section {
            background: #fff;
        }

        .faq-grid {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 28px;
            transition: all 0.3s ease;
            background: #fafbfc;
        }

        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
            background: #fff;
            box-shadow: var(--shadow);
        }

        .faq-item h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-item h3 i {
            color: var(--primary);
            font-size: 14px;
        }

        .faq-item p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            padding-left: 24px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1e40af 0%, #0f172a 100%);
            text-align: center;
            padding: 72px 0;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 32px;
        }

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

        .btn-white {
            display: inline-block;
            background: #fff;
            color: var(--primary-dark);
            font-weight: 600;
            padding: 14px 36px;
            border-radius: 999px;
            font-size: 15px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
        }

        .btn-ghost-light {
            display: inline-block;
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-weight: 500;
            padding: 14px 32px;
            border-radius: 999px;
            font-size: 15px;
            transition: all 0.3s ease;
        }

        .btn-ghost-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        /* 内页通用 */
        .page-main {
            padding: 0;
        }

        .section-alt {
            background: #fff;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .process-step::after {
                display: none;
            }

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

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

        @media (max-width: 768px) {
            .header-inner {
                height: 62px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                gap: 0;
                padding: 16px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                display: block;
                padding: 12px 20px;
                border-radius: var(--radius-sm);
                text-align: center;
                width: 100%;
            }

            .mobile-toggle {
                display: block;
            }

            .header-cta .btn-outline,
            .header-cta .btn-primary {
                display: none;
            }

            .hero-banner {
                min-height: 280px;
            }

            .hero-content {
                padding: 48px 0;
            }

            .hero-content h1 {
                font-size: 32px;
            }

            .section {
                padding: 60px 0;
            }

            .section-header h2 {
                font-size: 26px;
            }

            .container {
                padding: 0 20px;
            }

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

        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }

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

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

            .hero-content h1 {
                font-size: 26px;
            }

            .hero-content p {
                font-size: 14px;
            }

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

            .btn-white,
            .btn-ghost-light {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: article */
/* ==== 设计变量 ==== */
        :root {
            --primary: #00d4aa;
            --primary-dark: #00b894;
            --primary-light: #4de8c6;
            --primary-glow: rgba(0, 212, 170, 0.25);
            --secondary: #00a3ff;
            --secondary-glow: rgba(0, 163, 255, 0.2);
            --bg-dark: #080c14;
            --bg-surface: #0e1522;
            --bg-card: #151f31;
            --bg-card-hover: #1c2a40;
            --text-hi: #f0f5fb;
            --text-body: #a7b3c7;
            --text-dim: #64748b;
            --border: rgba(255, 255, 255, 0.08);
            --border-bright: rgba(0, 212, 170, 0.3);
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
            --shadow-glow: 0 0 48px rgba(0, 212, 170, 0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --radius-xl: 28px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
        }

        /* ==== 基础 Reset ==== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: color 0.2s ease, opacity 0.2s ease; }
        img { max-width: 100%; display: block; }
        button { font-family: inherit; cursor: pointer; border: none; background: none; }
        input, select, textarea { font-family: inherit; }
        ul, ol { list-style: none; }

        /* ==== 容器 ==== */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ==== 头部导航 ==== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(8, 12, 20, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled { box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-hi);
            flex-shrink: 0;
        }
        .brand i {
            color: var(--primary);
            font-size: 22px;
            filter: drop-shadow(0 0 12px var(--primary-glow));
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0 auto;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            transition: all 0.25s ease;
        }
        .main-nav a:hover { color: var(--text-hi); background: rgba(255, 255, 255, 0.05); }
        .main-nav a.active {
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            box-shadow: 0 4px 18px var(--primary-glow);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: #081018;
            box-shadow: 0 4px 20px var(--primary-glow);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0, 212, 170, 0.25);
        }
        .btn-outline {
            border-color: var(--border-bright);
            color: var(--primary-light);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(0, 212, 170, 0.08);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-light {
            background: var(--text-hi);
            color: var(--bg-dark);
        }
        .btn-light:hover {
            background: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 255, 255, 0.2);
        }
        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.3);
            color: #fff;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-sm { padding: 6px 16px; font-size: 13px; border-radius: 40px; }
        .btn-block { width: 100%; }
        .nav-toggle {
            display: none;
            color: var(--text-hi);
            font-size: 22px;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }
        .nav-toggle:hover { background: rgba(255, 255, 255, 0.06); }

        /* ==== 页面横幅 ==== */
        .page-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 72px 0 54px;
            text-align: center;
            border-bottom: 1px solid transparent;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(5, 8, 15, 0.95), rgba(10, 16, 28, 0.82));
            z-index: 1;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--primary-light); }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb i { font-size: 10px; color: var(--text-dim); }
        .breadcrumb .current { color: var(--text-body); max-width: 320px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 20px;
            background: rgba(0, 212, 170, 0.12);
            border: 1px solid var(--border-bright);
            border-radius: 999px;
            color: var(--primary-light);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        /* ==== 正文区块 ==== */
        .article-section {
            padding: 64px 0;
            background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-surface) 100%);
        }
        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
        }
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 48px 52px;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }
        .article-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }
        .article-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--text-hi);
            margin-bottom: 24px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            padding-bottom: 22px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 32px;
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--text-dim);
        }
        .meta-item i { color: var(--primary); font-size: 13px; }
        .meta-item .badge-inline {
            display: inline-flex;
            padding: 2px 12px;
            background: rgba(0, 212, 170, 0.12);
            border: 1px solid var(--border-bright);
            border-radius: 999px;
            color: var(--primary-light);
            font-weight: 600;
            font-size: 12px;
        }

        /* ==== 文章正文排版 ==== */
        .article-body { font-size: 1.02rem; line-height: 1.9; color: var(--text-body); }
        .article-body p { margin-bottom: 1.4rem; }
        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-hi);
            margin: 2.2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .article-body h2 i { color: var(--primary); font-size: 1.2rem; }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-hi);
            margin: 1.8rem 0 0.8rem;
        }
        .article-body h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-hi);
            margin: 1.5rem 0 0.6rem;
        }
        .article-body a { color: var(--primary-light); text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--primary); }
        .article-body ul, .article-body ol {
            margin: 1.2rem 0 1.6rem;
            padding-left: 1.6rem;
        }
        .article-body ul li { position: relative; margin-bottom: 0.55rem; padding-left: 6px; }
        .article-body ul li::before {
            content: '';
            position: absolute;
            left: -1.2rem;
            top: 0.62em;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            box-shadow: 0 0 8px var(--primary-glow);
        }
        .article-body ol { counter-reset: artli; }
        .article-body ol li { counter-increment: artli; position: relative; margin-bottom: 0.55rem; padding-left: 8px; }
        .article-body ol li::before {
            content: counter(artli);
            position: absolute;
            left: -2.2rem;
            top: 0.02em;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary-light);
            background: rgba(0, 212, 170, 0.1);
            padding: 2px 8px;
            border-radius: 6px;
        }
        .article-body blockquote {
            margin: 1.6rem 0;
            padding: 16px 24px;
            background: rgba(0, 212, 170, 0.06);
            border-left: 3px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-hi);
            font-style: normal;
            position: relative;
        }
        .article-body blockquote p:last-child { margin-bottom: 0; }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.6rem auto;
            box-shadow: var(--shadow-md);
        }
        .article-body .article-note {
            background: rgba(0, 163, 255, 0.08);
            border-left: 3px solid var(--secondary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            padding: 14px 20px;
            margin: 1.6rem 0;
            color: var(--text-body);
        }

        /* ==== 侧栏 ==== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 88px;
        }
        .sidebar-widget {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .sidebar-widget:hover { border-color: var(--border-bright); box-shadow: var(--shadow-glow); }
        .sidebar-widget h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-widget h4 i { color: var(--primary); font-size: 16px; }
        .sidebar-widget p { font-size: 14px; color: var(--text-dim); line-height: 1.75; margin-bottom: 14px; }
        .about-widget .btn { margin-top: 6px; }
        .nav-widget a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 11px 14px;
            border-radius: 10px;
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 4px;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }
        .nav-widget a i { color: var(--text-dim); font-size: 14px; width: 18px; text-align: center; transition: color 0.2s; }
        .nav-widget a:hover {
            background: rgba(0, 212, 170, 0.06);
            border-color: var(--border-bright);
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .nav-widget a:hover i { color: var(--primary); }
        .tip-widget ul { margin-top: 4px; }
        .tip-widget li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
            padding: 7px 0;
            line-height: 1.5;
        }
        .tip-widget li i { color: var(--primary); font-size: 14px; margin-top: 2px; flex-shrink: 0; }

        /* ==== 服务推荐 ==== */
        .services-section {
            padding: 72px 0;
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-flex;
            padding: 4px 16px;
            background: rgba(0, 212, 170, 0.1);
            border: 1px solid var(--border-bright);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary-light);
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }
        .section-header h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: -0.02em;
            margin-bottom: 10px;
        }
        .section-header p { color: var(--text-dim); font-size: 16px; max-width: 560px; margin: 0 auto; }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.35s ease;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            border-color: var(--border-bright);
            box-shadow: var(--shadow-glow);
            transform: translateY(-6px);
        }
        .service-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
            transition: transform 0.4s ease;
        }
        .service-card:hover img { transform: scale(1.04); }
        .service-info { padding: 24px 26px 26px; flex: 1; display: flex; flex-direction: column; }
        .service-info h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 8px;
        }
        .service-info p { font-size: 14px; color: var(--text-dim); line-height: 1.7; margin-bottom: 18px; flex: 1; }
        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-light);
            transition: gap 0.2s ease;
        }
        .btn-link:hover { gap: 12px; color: var(--primary); }

        /* ==== CTA 区块 ==== */
        .cta-section {
            padding: 72px 0;
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
        }
        .cta-card {
            background: linear-gradient(135deg, rgba(0, 212, 170, 0.13), rgba(0, 163, 255, 0.13)), var(--bg-card);
            border: 1px solid var(--border-bright);
            border-radius: var(--radius-xl);
            padding: 56px 64px;
            text-align: center;
            box-shadow: var(--shadow-glow);
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(0, 212, 170, 0.2), transparent 70%);
            pointer-events: none;
        }
        .cta-card h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.2rem);
            font-weight: 800;
            color: var(--text-hi);
            margin-bottom: 14px;
            position: relative;
        }
        .cta-card p { color: var(--text-body); max-width: 580px; margin: 0 auto 32px; font-size: 16px; position: relative; }
        .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; }

        /* ==== 未找到 ==== */
        .not-found-section { padding: 80px 0 100px; background: var(--bg-surface); min-height: 55vh; display: flex; align-items: center; }
        .not-found-card {
            max-width: 560px;
            margin: 0 auto;
            text-align: center;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 60px 48px;
            box-shadow: var(--shadow-md);
        }
        .not-found-card > i {
            font-size: 56px;
            color: var(--primary);
            margin-bottom: 20px;
            display: block;
            filter: drop-shadow(0 0 20px var(--primary-glow));
        }
        .not-found-card h1 { font-size: 28px; font-weight: 800; color: var(--text-hi); margin-bottom: 10px; }
        .not-found-card p { color: var(--text-dim); font-size: 15px; margin-bottom: 28px; }
        .not-found-card .btn { margin: 0 auto; }

        /* ==== 页脚 ==== */
        .site-footer {
            background: #060a12;
            border-top: 1px solid var(--border);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 38px;
            border-bottom: 1px solid var(--border);
        }
        .footer-brand .brand { margin-bottom: 14px; }
        .footer-brand p { font-size: 14px; color: var(--text-dim); line-height: 1.75; max-width: 300px; }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-dim);
            padding: 5px 0;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }
        .footer-col a:hover { color: var(--primary-light); padding-left: 6px; }
        .footer-col p { font-size: 14px; color: var(--text-dim); line-height: 1.9; }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: #5a6a7f;
        }
        .footer-bottom p { letter-spacing: 0.02em; }

        /* ==== 焦点状态 ==== */
        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ==== 移动端适配 ==== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 16px;
                position: static;
            }
            .sidebar-widget { flex: 1 1 calc(33.333% - 12px); min-width: 220px; }
            .services-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }
        @media (max-width: 768px) {
            .header-inner { height: 60px; gap: 12px; }
            .main-nav {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(8, 12, 20, 0.98);
                backdrop-filter: blur(14px);
                padding: 16px 24px;
                flex-direction: column;
                gap: 2px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-12px);
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s ease;
                z-index: 99;
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .main-nav.nav-open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav a { display: block; width: 100%; padding: 12px 20px; font-size: 15px; border-radius: 10px; }
            .nav-toggle { display: flex; }
            .header-actions .btn { display: none; }
            .page-banner { padding: 56px 0 40px; }
            .breadcrumb { font-size: 12px; gap: 5px; }
            .article-card { padding: 28px 20px; }
            .article-body { font-size: 1rem; line-height: 1.8; }
            .article-body ul, .article-body ol { padding-left: 1.4rem; }
            .services-grid { grid-template-columns: 1fr; }
            .cta-card { padding: 36px 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .brand { font-size: 17px; }
            .article-card { padding: 22px 16px; border-radius: var(--radius-md); }
            .article-title { font-size: 1.4rem; line-height: 1.35; }
            .article-meta { gap: 10px; }
            .meta-item { font-size: 12px; }
            .page-banner { padding: 42px 0 32px; }
            .banner-badge { font-size: 12px; padding: 4px 14px; }
            .sidebar-widget { flex: 1 1 100%; min-width: 100%; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-bottom: 24px; }
            .footer-bottom { font-size: 12px; }
            .cta-actions { flex-direction: column; gap: 12px; }
            .cta-actions .btn { width: 100%; }
            .not-found-card { padding: 36px 20px; }
        }

        /* ==== 动画 ==== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(24px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-card, .sidebar-widget, .service-card, .cta-card {
            animation: fadeInUp 0.6s ease-out both;
        }
        .sidebar-widget:nth-child(2) { animation-delay: 0.08s; }
        .sidebar-widget:nth-child(3) { animation-delay: 0.16s; }
        .service-card:nth-child(2) { animation-delay: 0.1s; }
        .service-card:nth-child(3) { animation-delay: 0.2s; }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
    :root {
        --primary: #0e8a72;
        --primary-dark: #056351;
        --accent: #06d6a0;
        --deep-bg: #0a1729;
        --deep-bg-2: #0e1f33;
        --bg-soft: #f4f8f7;
        --text-main: #0f1a2b;
        --text-muted: #5c6b78;
        --border: #e3ebee;
        --radius: 16px;
        --radius-sm: 10px;
        --shadow: 0 4px 24px rgba(6, 39, 31, 0.08);
        --shadow-lg: 0 12px 36px rgba(6, 39, 31, 0.12);
    }

    /* ========== Reset / Base ========== */
    *,
    *::before,
    *::after {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        background: var(--bg-soft);
        color: var(--text-main);
        line-height: 1.65;
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: color .2s ease;
    }
    button {
        cursor: pointer;
        border: none;
        background: none;
        font-family: inherit;
    }
    ul {
        list-style: none;
    }
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    @media(max-width:640px) {
        .container {
            padding: 0 16px;
        }
    }

    /* ========== 导航 ========== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(250, 252, 251, 0.92);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(227, 235, 238, 0.8);
        transition: box-shadow .25s ease;
    }
    .site-header.scrolled {
        box-shadow: 0 4px 20px rgba(6, 39, 31, 0.06);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 68px;
        gap: 16px;
    }
    .brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 22px;
        font-weight: 800;
        color: var(--primary-dark);
        letter-spacing: 0.5px;
        white-space: nowrap;
        line-height: 1.2;
    }
    .brand i {
        font-size: 20px;
        color: var(--primary);
        background: rgba(14, 138, 114, 0.1);
        padding: 8px;
        border-radius: 12px;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 4px;
    }
    .main-nav a {
        padding: 8px 18px;
        font-size: 15px;
        font-weight: 500;
        color: #4a5a67;
        border-radius: 999px;
        transition: all .22s ease;
        white-space: nowrap;
        position: relative;
    }
    .main-nav a:hover {
        color: var(--primary-dark);
        background: rgba(14, 138, 114, 0.06);
    }
    .main-nav a.active {
        color: var(--primary-dark);
        font-weight: 700;
        background: rgba(14, 138, 114, 0.1);
    }
    .main-nav a.active::after {
        content: '';
        position: absolute;
        bottom: 2px;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 3px;
        border-radius: 4px;
        background: var(--accent);
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .btn-login {
        background: var(--primary);
        color: #fff;
        border-radius: 999px;
        padding: 9px 24px;
        font-size: 14px;
        font-weight: 600;
        transition: all .25s ease;
        box-shadow: 0 2px 10px rgba(14, 138, 114, 0.25);
        white-space: nowrap;
    }
    .btn-login:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(14, 138, 114, 0.35);
    }
    .btn-login:active {
        transform: translateY(0);
    }
    .menu-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border-radius: 10px;
        background: rgba(14, 138, 114, 0.08);
        align-items: center;
        justify-content: center;
        font-size: 18px;
        color: var(--primary-dark);
        transition: all .2s ease;
    }
    .menu-toggle:hover {
        background: rgba(14, 138, 114, 0.16);
    }

    /* 移动端导航 */
    .mobile-nav {
        display: none;
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        background: #fff;
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 32px rgba(6, 39, 31, 0.12);
        z-index: 99;
        flex-direction: column;
        gap: 6px;
    }
    .mobile-nav.open {
        display: flex;
    }
    .mobile-nav a {
        padding: 12px 16px;
        border-radius: 12px;
        font-size: 15px;
        font-weight: 500;
        color: #3d4d5a;
        transition: background .2s ease;
    }
    .mobile-nav a:hover {
        background: rgba(14, 138, 114, 0.07);
        color: var(--primary-dark);
    }
    .mobile-nav a.active {
        background: rgba(14, 138, 114, 0.1);
        color: var(--primary-dark);
        font-weight: 700;
    }

    @media(max-width: 768px) {
        .main-nav {
            display: none;
        }
        .menu-toggle {
            display: flex;
        }
        .header-actions .btn-login {
            display: none;
        }
        .header-inner {
            height: 62px;
        }
        .mobile-nav {
            top: 62px;
        }
    }

    /* ========== 页面 Hero ========== */
    .page-hero {
        position: relative;
        background: linear-gradient(135deg, #0a1729 0%, #0e1f33 60%, #132a41 100%);
        padding: 68px 0 88px;
        overflow: hidden;
        color: #fff;
    }
    .page-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        opacity: 0.16;
    }
    .page-hero::after {
        content: '';
        position: absolute;
        top: -60%;
        right: -15%;
        width: 500px;
        height: 500px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(6, 214, 160, 0.15) 0%, transparent 70%);
        pointer-events: none;
    }
    .hero-grid {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 48px;
        align-items: center;
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(6, 214, 160, 0.16);
        border: 1px solid rgba(6, 214, 160, 0.3);
        color: #5ef2c5;
        font-size: 13px;
        font-weight: 600;
        padding: 6px 16px;
        border-radius: 999px;
        letter-spacing: 1px;
        margin-bottom: 20px;
    }
    .hero-badge i {
        font-size: 12px;
    }
    .page-hero h1 {
        font-size: 42px;
        font-weight: 800;
        line-height: 1.2;
        margin-bottom: 16px;
        letter-spacing: 1px;
    }
    .page-hero h1 span {
        color: var(--accent);
    }
    .hero-desc {
        font-size: 16px;
        color: rgba(255, 255, 255, 0.75);
        max-width: 520px;
        line-height: 1.8;
        margin-bottom: 28px;
    }
    .hero-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 28px;
    }
    .hero-tags span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.12);
        padding: 6px 14px;
        border-radius: 999px;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.85);
    }
    .hero-tags span i {
        color: var(--accent);
        font-size: 11px;
    }
    .hero-breadcrumb {
        font-size: 13px;
        color: rgba(255, 255, 255, 0.45);
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .hero-breadcrumb a:hover {
        color: var(--accent);
    }
    .hero-breadcrumb i {
        font-size: 10px;
        color: rgba(255, 255, 255, 0.3);
    }
    .hero-visual {
        position: relative;
        border-radius: 20px;
        overflow: hidden;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
        border: 1px solid rgba(255, 255, 255, 0.08);
        transform: perspective(1200px) rotateY(-4deg) rotateX(1deg);
        transition: transform .4s ease;
    }
    .hero-visual:hover {
        transform: perspective(1200px) rotateY(0deg) rotateX(0deg);
    }
    .hero-visual img {
        width: 100%;
        height: 300px;
        object-fit: cover;
    }
    .hero-visual .float-card {
        position: absolute;
        bottom: 18px;
        left: 18px;
        right: 18px;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(8px);
        padding: 14px 18px;
        border-radius: 14px;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    }
    .float-card .fc-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 6px;
    }
    .fc-row .label {
        font-size: 13px;
        color: #3d4d5a;
        font-weight: 600;
    }
    .fc-row .status {
        font-size: 12px;
        font-weight: 700;
        color: var(--primary);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .fc-row .status i {
        color: var(--accent);
    }
    .fc-bar {
        width: 100%;
        height: 6px;
        background: #e5ecef;
        border-radius: 99px;
        overflow: hidden;
    }
    .fc-bar span {
        display: block;
        height: 100%;
        width: 86%;
        background: linear-gradient(90deg, var(--primary), var(--accent));
        border-radius: 99px;
    }

    @media(max-width: 900px) {
        .hero-grid {
            grid-template-columns: 1fr;
            gap: 36px;
        }
        .page-hero {
            padding: 48px 0 64px;
        }
        .page-hero h1 {
            font-size: 32px;
        }
        .hero-visual {
            max-width: 480px;
        }
    }
    @media(max-width:640px) {
        .page-hero h1 {
            font-size: 26px;
        }
        .hero-desc {
            font-size: 14px;
        }
    }

    /* ========== 通用板块 ========== */
    .section {
        padding: 80px 0;
    }
    .section-sm {
        padding: 56px 0;
    }
    .section-dark {
        background: var(--deep-bg);
        color: #fff;
    }
    .section-head {
        text-align: center;
        max-width: 660px;
        margin: 0 auto 48px;
    }
    .section-head .eyebrow {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--primary);
        background: rgba(14, 138, 114, 0.08);
        padding: 5px 14px;
        border-radius: 999px;
        margin-bottom: 14px;
    }
    .section-head h2 {
        font-size: 32px;
        font-weight: 800;
        line-height: 1.3;
        margin-bottom: 12px;
        color: var(--text-main);
    }
    .section-head p {
        font-size: 15px;
        color: var(--text-muted);
        line-height: 1.7;
    }
    .section-dark .section-head h2 {
        color: #fff;
    }
    .section-dark .section-head p {
        color: rgba(255, 255, 255, 0.65);
    }
    .section-dark .section-head .eyebrow {
        background: rgba(6, 214, 160, 0.16);
        color: var(--accent);
    }
    @media(max-width:768px) {
        .section {
            padding: 56px 0;
        }
        .section-head h2 {
            font-size: 24px;
        }
    }

    /* ========== 登录方式卡片 ========== */
    .method-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .method-card {
        background: #fff;
        border-radius: var(--radius);
        padding: 28px 24px;
        box-shadow: var(--shadow);
        border: 1px solid rgba(227, 235, 238, 0.8);
        transition: all .3s ease;
        position: relative;
        overflow: hidden;
    }
    .method-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--primary), var(--accent));
        opacity: 0;
        transition: opacity .3s ease;
    }
    .method-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        border-color: rgba(14, 138, 114, 0.2);
    }
    .method-card:hover::before {
        opacity: 1;
    }
    .method-icon {
        width: 52px;
        height: 52px;
        border-radius: 14px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        margin-bottom: 18px;
        color: var(--primary);
        background: rgba(14, 138, 114, 0.1);
        transition: background .3s ease, color .3s ease;
    }
    .method-card:hover .method-icon {
        background: var(--primary);
        color: #fff;
    }
    .method-card h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 10px;
    }
    .method-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }
    @media(max-width: 900px) {
        .method-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media(max-width: 520px) {
        .method-grid {
            grid-template-columns: 1fr;
        }
    }

    /* ========== 功能模块 ========== */
    .feature-wrap {
        background: #fff;
        border-radius: 24px;
        padding: 56px 32px;
        box-shadow: var(--shadow);
    }
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .feature-card {
        background: var(--bg-soft);
        border-radius: var(--radius);
        padding: 28px 26px;
        border: 1px solid var(--border);
        transition: all .3s ease;
        position: relative;
    }
    .feature-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
        background: #fff;
        border-color: transparent;
    }
    .feature-icon {
        width: 46px;
        height: 46px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        background: rgba(14, 138, 114, 0.1);
        color: var(--primary);
        margin-bottom: 16px;
        transition: all .3s ease;
    }
    .feature-card:hover .feature-icon {
        background: var(--primary);
        color: #fff;
        transform: scale(1.08);
    }
    .feature-card h3 {
        font-size: 17px;
        font-weight: 700;
        margin-bottom: 8px;
    }
    .feature-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
    }
    @media(max-width: 900px) {
        .feature-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media(max-width: 560px) {
        .feature-grid {
            grid-template-columns: 1fr;
        }
        .feature-wrap {
            padding: 32px 20px;
        }
    }

    /* ========== 步骤流程 ========== */
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        position: relative;
    }
    .steps-grid::before {
        content: '';
        position: absolute;
        top: 32px;
        left: 8%;
        right: 8%;
        height: 2px;
        background: linear-gradient(90deg, rgba(6, 214, 160, 0.5), rgba(255, 255, 255, 0.15));
        z-index: 1;
    }
    .step-item {
        position: relative;
        z-index: 2;
        text-align: center;
        padding: 0 8px;
    }
    .step-num {
        width: 64px;
        height: 64px;
        border-radius: 50%;
        margin: 0 auto 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        font-weight: 800;
        background: linear-gradient(135deg, var(--accent), #03a67a);
        color: #06281f;
        box-shadow: 0 8px 22px rgba(6, 214, 160, 0.3);
        position: relative;
    }
    .step-num::after {
        content: '';
        position: absolute;
        inset: -6px;
        border-radius: 50%;
        border: 2px dashed rgba(6, 214, 160, 0.4);
        animation: spin 12s linear infinite;
    }
    @keyframes spin {
        to {
            transform: rotate(360deg);
        }
    }
    .step-item h3 {
        font-size: 17px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 8px;
    }
    .step-item p {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.55);
        line-height: 1.7;
    }
    @media(max-width:900px) {
        .steps-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 40px 24px;
        }
        .steps-grid::before {
            display: none;
        }
    }
    @media(max-width:480px) {
        .steps-grid {
            grid-template-columns: 1fr;
        }
    }

    /* ========== 新老用户引导 ========== */
    .guide-split {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }
    .guide-card {
        background: #fff;
        border-radius: 20px;
        padding: 36px 32px;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        position: relative;
        overflow: hidden;
        transition: all .3s ease;
    }
    .guide-card:hover {
        box-shadow: var(--shadow-lg);
    }
    .guide-card .guide-label {
        display: inline-block;
        font-size: 12px;
        font-weight: 700;
        letter-spacing: 1px;
        padding: 4px 12px;
        border-radius: 999px;
        margin-bottom: 14px;
        background: rgba(14, 138, 114, 0.1);
        color: var(--primary);
    }
    .guide-card h3 {
        font-size: 22px;
        font-weight: 800;
        margin-bottom: 14px;
    }
    .guide-list {
        margin-top: 20px;
    }
    .guide-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        padding: 10px 0;
        border-bottom: 1px solid #f0f4f5;
        font-size: 15px;
        color: #3d4d5a;
        line-height: 1.6;
    }
    .guide-list li:last-child {
        border-bottom: none;
    }
    .guide-list li i {
        color: var(--accent);
        margin-top: 5px;
        font-size: 13px;
    }
    @media(max-width: 720px) {
        .guide-split {
            grid-template-columns: 1fr;
        }
    }

    /* ========== FAQ ========== */
    .faq-list {
        max-width: 780px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 14px;
    }
    .faq-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 0 24px;
        transition: box-shadow .25s ease;
        overflow: hidden;
    }
    .faq-item:hover {
        box-shadow: var(--shadow);
    }
    .faq-q {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 0;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-main);
        gap: 16px;
    }
    .faq-q i {
        color: var(--primary);
        transition: transform .3s ease;
        flex-shrink: 0;
    }
    .faq-item.open .faq-q i {
        transform: rotate(45deg);
    }
    .faq-a {
        max-height: 0;
        overflow: hidden;
        transition: max-height .4s ease, padding .3s ease;
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.8;
    }
    .faq-item.open .faq-a {
        max-height: 360px;
        padding-bottom: 22px;
    }

    /* ========== CTA ========== */
    .cta-section {
        position: relative;
        background: linear-gradient(135deg, #0e1f33 0%, #123a33 100%);
        padding: 72px 0;
        overflow: hidden;
        border-radius: 28px;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-3.png');
        background-size: cover;
        background-position: center;
        opacity: 0.08;
    }
    .cta-inner {
        position: relative;
        z-index: 2;
        text-align: center;
        color: #fff;
        max-width: 640px;
        margin: 0 auto;
        padding: 0 24px;
    }
    .cta-inner h2 {
        font-size: 30px;
        font-weight: 800;
        margin-bottom: 14px;
    }
    .cta-inner p {
        font-size: 15px;
        color: rgba(255, 255, 255, 0.7);
        margin-bottom: 28px;
        line-height: 1.7;
    }
    .cta-btns {
        display: flex;
        gap: 14px;
        justify-content: center;
        flex-wrap: wrap;
    }
    .btn-white {
        background: #fff;
        color: var(--primary-dark);
        font-weight: 700;
        padding: 14px 32px;
        border-radius: 999px;
        font-size: 15px;
        transition: all .25s ease;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }
    .btn-white:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    }
    .btn-outline-white {
        background: transparent;
        border: 1px solid rgba(255, 255, 255, 0.4);
        color: #fff;
        font-weight: 600;
        padding: 14px 32px;
        border-radius: 999px;
        font-size: 15px;
        transition: all .25s ease;
    }
    .btn-outline-white:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.7);
        transform: translateY(-2px);
    }
    @media(max-width:640px) {
        .cta-inner h2 {
            font-size: 24px;
        }
    }

    /* ========== 页脚 ========== */
    .site-footer {
        background: #0a1729;
        color: #a8b6c2;
        padding: 64px 0 0;
        font-size: 14px;
        margin-top: 12px;
    }
    .site-footer .container {
        max-width: 1200px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-brand .brand {
        color: #fff;
        font-size: 22px;
        font-weight: 800;
        margin-bottom: 14px;
    }
    .footer-brand .brand i {
        background: rgba(6, 214, 160, 0.15);
        color: var(--accent);
    }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        color: #8a9aa8;
        max-width: 300px;
    }
    .footer-col h4 {
        color: #fff;
        font-size: 15px;
        font-weight: 700;
        margin-bottom: 18px;
    }
    .footer-col a {
        display: block;
        padding: 5px 0;
        color: #90a1b0;
        transition: color .2s ease, padding-left .2s ease;
    }
    .footer-col a:hover {
        color: var(--accent);
        padding-left: 4px;
    }
    .footer-col p {
        padding: 4px 0;
        color: #90a1b0;
        line-height: 1.8;
        font-size: 13px;
    }
    .footer-col p i {
        color: var(--accent);
        width: 18px;
        text-align: center;
        margin-right: 2px;
    }
    .footer-bottom {
        padding: 20px 0;
        text-align: center;
        font-size: 13px;
        color: #5f7180;
    }
    .footer-bottom p {
        margin: 0;
    }
    @media(max-width: 900px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
    }
    @media(max-width: 560px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
    }

    /* ========== 焦点状态 ========== */
    a:focus-visible,
    button:focus-visible {
        outline: 3px solid rgba(14, 138, 114, 0.4);
        outline-offset: 2px;
        border-radius: 6px;
    }

/* roulang page: category3 */
:root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #3b82f6;
            --accent: #06b6d4;
            --accent-light: #22d3ee;
            --dark: #0b1220;
            --dark-2: #111c2e;
            --dark-3: #17233b;
            --bg: #f6f8fc;
            --white: #ffffff;
            --text: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(15, 23, 42, .08);
            --shadow-lg: 0 12px 40px rgba(15, 23, 42, .12);
            --shadow-brand: 0 8px 32px rgba(37, 99, 235, .18);
            --transition: all .3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
            border: none;
            background: none;
            outline: none;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ---------- 按钮 ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-brand);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(37, 99, 235, .25);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-ghost {
            background: transparent;
            color: #e2e8f0;
            border-color: rgba(255, 255, 255, .32);
        }
        .btn-ghost:hover {
            border-color: rgba(255, 255, 255, .7);
            background: rgba(255, 255, 255, .08);
        }
        .btn-light {
            background: #fff;
            color: var(--dark);
            box-shadow: 0 8px 28px rgba(0, 0, 0, .16);
        }
        .btn-light:hover {
            background: #eef2f7;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(37, 99, 235, .06);
            border-color: var(--primary-dark);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        /* ---------- 顶部导航 ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .35s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(15, 23, 42, .1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            min-height: 72px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: .5px;
        }
        .brand i {
            color: var(--primary);
            font-size: 24px;
        }
        .brand:hover {
            opacity: .85;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(37, 99, 235, .06);
        }
        .main-nav a.active {
            color: var(--primary);
            background: rgba(37, 99, 235, .1);
            border-color: rgba(37, 99, 235, .16);
            font-weight: 600;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-size: 18px;
            color: var(--dark);
            background: var(--bg);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: #eef2f7;
        }

        /* ---------- Hero ---------- */
        .page-hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            padding: 80px 0 64px;
            background: linear-gradient(120deg, rgba(11, 18, 32, .94) 0%, rgba(17, 28, 46, .88) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 20%, rgba(37, 99, 235, .22), transparent 60%);
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 60px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .18);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            color: #dbeafe;
            margin-bottom: 20px;
            backdrop-filter: blur(6px);
        }
        .hero-badge i {
            color: var(--accent-light);
        }
        .hero-content h1 {
            font-size: clamp(30px, 4vw, 46px);
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .hero-content h1 span {
            color: var(--accent-light);
        }
        .hero-content p {
            font-size: 17px;
            color: #cbd5e1;
            max-width: 520px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: #94a3b8;
        }
        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-trust i {
            color: #34d399;
        }

        .hero-metrics {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .metric-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 18px;
            padding: 24px 20px;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .metric-card:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, .2);
        }
        .metric-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(37, 99, 235, .25);
            color: #93c5fd;
            font-size: 18px;
            margin-bottom: 14px;
        }
        .metric-num {
            font-size: clamp(24px, 2.6vw, 34px);
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            letter-spacing: 1px;
        }
        .metric-num span {
            font-size: 16px;
            font-weight: 600;
            color: var(--accent-light);
            margin-left: 2px;
        }
        .metric-label {
            margin-top: 6px;
            font-size: 14px;
            color: #94a3b8;
        }

        /* ---------- 板块通用 ---------- */
        .section {
            padding: 96px 0;
        }
        .section-alt {
            background: var(--white);
        }
        .section-head {
            max-width: 720px;
            margin: 0 auto 56px;
            text-align: center;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(37, 99, 235, .08);
            border: 1px solid rgba(37, 99, 235, .14);
            padding: 6px 18px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3vw, 40px);
            font-weight: 800;
            color: var(--dark);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
        }

        /* ---------- 安全概览 ---------- */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .overview-text h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .overview-text p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .overview-list {
            list-style: none;
            margin-bottom: 28px;
        }
        .overview-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            color: var(--text);
            font-size: 15px;
        }
        .overview-list li i {
            color: var(--primary);
            font-size: 18px;
            margin-top: 3px;
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
        }
        .text-link:hover {
            gap: 12px;
            color: var(--primary-dark);
        }
        .overview-media {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .overview-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .overview-media:hover img {
            transform: scale(1.03);
        }
        .overview-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(11, 18, 32, .55) 100%);
        }

        /* ---------- 核心防护能力 ---------- */
        .cap-section {
            background: var(--white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .cap-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cap-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .cap-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .cap-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            background: #fff;
            border-color: rgba(37, 99, 235, .18);
        }
        .cap-card:hover::before {
            opacity: 1;
        }
        .cap-icon {
            width: 54px;
            height: 54px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(37, 99, 235, .12), rgba(6, 182, 212, .12));
            color: var(--primary);
            font-size: 22px;
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .cap-card:hover .cap-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(-6deg) scale(1.05);
        }
        .cap-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .cap-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ---------- 安全流程 ---------- */
        .process-section {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .process-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(37, 99, 235, .25), transparent 70%);
            pointer-events: none;
        }
        .process-section .section-head h2 {
            color: #fff;
        }
        .process-section .section-head p {
            color: #94a3b8;
        }
        .process-section .section-tag {
            color: var(--accent-light);
            background: rgba(6, 182, 212, .1);
            border-color: rgba(6, 182, 212, .2);
        }
        .process-layout {
            display: grid;
            grid-template-columns: 1fr .85fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .process-steps {
            position: relative;
            padding-left: 8px;
        }
        .step-card {
            position: relative;
            display: flex;
            gap: 20px;
            padding: 20px 0;
        }
        .step-num {
            flex-shrink: 0;
            width: 46px;
            height: 46px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(37, 99, 235, .2);
            color: #93c5fd;
            font-weight: 800;
            font-size: 17px;
            border: 1px solid rgba(37, 99, 235, .35);
            z-index: 2;
        }
        .step-card::before {
            content: '';
            position: absolute;
            left: 23px;
            top: 56px;
            bottom: -20px;
            width: 1px;
            background: rgba(255, 255, 255, .14);
        }
        .step-card:last-child::before {
            display: none;
        }
        .step-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #fff;
        }
        .step-body p {
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.8;
        }
        .process-media {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, .4);
        }
        .process-media img {
            width: 100%;
            height: 460px;
            object-fit: cover;
        }

        /* ---------- FAQ ---------- */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 18px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(37, 99, 235, .22);
            box-shadow: var(--shadow);
        }
        .faq-item[open] {
            border-color: rgba(37, 99, 235, .3);
            box-shadow: var(--shadow);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            list-style: none;
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--text-muted);
            transition: transform .35s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary {
            color: var(--primary);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 28px 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.9;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--dark-2), var(--dark-3)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            position: relative;
        }
        .cta-card {
            position: relative;
            z-index: 2;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 28px;
            padding: 56px 48px;
            text-align: center;
            backdrop-filter: blur(10px);
            max-width: 900px;
            margin: 0 auto;
        }
        .cta-card h2 {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-card p {
            color: #cbd5e1;
            font-size: 16px;
            margin-bottom: 28px;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 72px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-brand .brand {
            color: #fff;
            margin-bottom: 14px;
            font-size: 21px;
        }
        .footer-brand .brand i {
            color: var(--accent-light);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a,
        .footer-col p {
            display: block;
            font-size: 14px;
            padding: 5px 0;
            color: #94a3b8;
            line-height: 1.7;
        }
        .footer-col a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
            color: #64748b;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1024px) {
            .cap-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
            .overview-grid {
                gap: 36px;
            }
        }

        @media (max-width: 920px) {
            .nav-toggle {
                display: inline-flex;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 16px;
                right: 16px;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                border-radius: 18px;
                box-shadow: 0 16px 48px rgba(15, 23, 42, .14);
                transform: translateY(-140%);
                opacity: 0;
                pointer-events: none;
                transition: all .4s ease;
                z-index: 999;
                border: 1px solid var(--border);
            }
            .main-nav.nav-open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav a {
                padding: 12px 18px;
                border-radius: 12px;
            }
            .header-tools .btn {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .page-hero {
                min-height: auto;
                padding: 64px 0;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-metrics {
                grid-template-columns: 1fr 1fr;
            }
            .overview-grid {
                grid-template-columns: 1fr;
            }
            .overview-media img {
                height: 320px;
            }
            .process-layout {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .process-media img {
                height: 320px;
            }
            .cap-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-card {
                padding: 40px 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .brand {
                font-size: 18px;
            }
            .brand i {
                font-size: 20px;
            }
            .metric-card {
                padding: 18px 14px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .faq-item summary {
                padding: 18px 20px;
            }
            .faq-answer {
                padding: 0 20px 20px;
            }
        }