:root {
            --primary: #3b82f6;
            --primary-grad: linear-gradient(135deg, #2563eb, #06b6d4);
            --accent: #ec4899;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --bg-card: #ffffff;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.02);
            --radius: 12px;
            --container-w: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.3s;
        }
        a:hover {
            color: #1d4ed8;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
        }

        .nav-container {
            max-width: var(--container-w);
            margin: 0 auto;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .brand-name {
            font-weight: 800;
            font-size: 1.25rem;
            background: var(--primary-grad);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .nav-links a {
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
        }
        .nav-links a:hover {
            color: var(--primary);
        }

        .nav-btn {
            background: var(--primary-grad);
            color: #fff !important;
            padding: 8px 18px;
            border-radius: 30px;
            font-weight: 600 !important;
            box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .nav-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 14px rgba(37, 99, 235, 0.3);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 3px;
            transition: 0.3s;
        }

        /* 主体容器 */
        main {
            margin-top: 70px;
        }

        .section-inner {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 80px 20px;
        }

        .section-title {
            text-align: center;
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 15px;
            color: #0f172a;
            position: relative;
        }
        .section-title span {
            background: var(--primary-grad);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 50px auto;
            font-size: 1.05rem;
        }

        /* 1. Hero 首屏 (无图片) */
        #home {
            background: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(236, 72, 153, 0.05) 0%, transparent 50%),
                        var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
            padding: 100px 20px 80px 20px;
            position: relative;
            z-index: 2;
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(59, 130, 246, 0.1);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.85rem;
            border-radius: 50px;
            margin-bottom: 25px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            color: #0f172a;
            margin-bottom: 25px;
            letter-spacing: -1px;
        }
        .hero-title span {
            background: linear-gradient(135deg, #3b82f6 0%, #ec4899 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.7;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .btn-primary {
            background: var(--primary-grad);
            color: #fff;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
            transition: all 0.3s;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
            color: #fff;
        }

        .btn-secondary {
            background: #fff;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all 0.3s;
        }
        .btn-secondary:hover {
            background: var(--bg-light);
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }

        /* 数据指标卡片 */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            border-top: 1px solid var(--border-color);
            padding-top: 50px;
        }
        .stat-card {
            background: var(--bg-light);
            padding: 20px;
            border-radius: var(--radius);
            border: 1px solid rgba(226, 232, 240, 0.8);
            transition: transform 0.3s;
        }
        .stat-card:hover {
            transform: translateY(-3px);
        }
        .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 2. 关于我们 */
        #about {
            background-color: var(--bg-card);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .about-info h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: #0f172a;
        }
        .about-info p {
            margin-bottom: 15px;
            color: var(--text-muted);
        }
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 25px;
        }
        .about-feat-item {
            padding: 12px 15px;
            background-color: var(--bg-light);
            border-left: 3px solid var(--primary);
            border-radius: 0 var(--radius) var(--radius) 0;
            font-size: 0.9rem;
            font-weight: 600;
        }

        /* 3. 全平台AIGC服务体系 */
        #services {
            background-color: var(--bg-light);
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        .service-card {
            background: var(--bg-card);
            padding: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        .service-icon {
            width: 50px;
            height: 50px;
            background: rgba(59, 130, 246, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: #0f172a;
        }
        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 4. 全自动AIGC制作流程 */
        #workflow {
            background-color: var(--bg-card);
        }
        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }
        .workflow-step {
            text-align: center;
            background: var(--bg-light);
            padding: 25px 20px;
            border-radius: var(--radius);
            position: relative;
            z-index: 2;
            border: 1px solid var(--border-color);
        }
        .step-num {
            width: 36px;
            height: 36px;
            background: var(--primary-grad);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 15px auto;
        }
        .workflow-step h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .workflow-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 5. 全行业解决方案 */
        #solutions {
            background-color: var(--bg-light);
        }
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }
        .solution-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }
        .solution-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .solution-body {
            padding: 25px;
        }
        .solution-tag {
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(236, 72, 153, 0.1);
            color: var(--accent);
            padding: 3px 8px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 12px;
        }
        .solution-body h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }
        .solution-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }
        .solution-list {
            list-style: none;
            font-size: 0.85rem;
            color: var(--text-main);
        }
        .solution-list li {
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .solution-list li::before {
            content: "✓";
            color: #10b981;
            font-weight: 700;
        }

        /* 6. 全国服务网络 */
        #network {
            background-color: var(--bg-card);
        }
        .network-box {
            background: var(--bg-light);
            border-radius: var(--radius);
            padding: 40px;
            border: 1px solid var(--border-color);
        }
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }
        .network-info h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }
        .network-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .network-item {
            padding: 10px;
            background: #fff;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            font-size: 0.85rem;
        }
        .network-map {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .network-bar {
            background: #fff;
            border-radius: 8px;
            padding: 15px;
            border: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .network-bar-label {
            font-weight: bold;
            font-size: 0.9rem;
        }
        .network-bar-val {
            color: var(--primary);
            font-weight: bold;
        }

        /* 7. 标准化服务全流程 */
        #standard-flow {
            background-color: var(--bg-light);
        }
        .s-flow-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 15px;
        }
        .s-flow-card {
            background: var(--bg-card);
            padding: 20px 15px;
            border-radius: var(--radius);
            text-align: center;
            border: 1px solid var(--border-color);
        }
        .s-flow-card span {
            display: block;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .s-flow-card h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

        /* 8. 技术标准 */
        #tech-standard {
            background-color: var(--bg-card);
        }
        .tech-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .tech-card {
            border: 1px solid var(--border-color);
            padding: 25px;
            border-radius: var(--radius);
            transition: all 0.3s;
        }
        .tech-card:hover {
            border-color: var(--primary);
            background: rgba(59, 130, 246, 0.02);
        }
        .tech-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: #0f172a;
        }
        .tech-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 9. 客户案例中心 */
        #cases {
            background-color: var(--bg-light);
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .case-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .case-img-wrap {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }
        .case-card:hover .case-img-wrap img {
            transform: scale(1.05);
        }
        .case-info {
            padding: 20px;
        }
        .case-info h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .case-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 10. 对比评测 */
        #comparison {
            background-color: var(--bg-card);
        }
        .comp-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            background: linear-gradient(to right, rgba(59, 130, 246, 0.05), rgba(236, 72, 153, 0.05));
            padding: 25px;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }
        .comp-score-box {
            text-align: right;
        }
        .comp-score {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
        }
        .comp-stars {
            color: #fbbf24;
            font-size: 1.25rem;
        }
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            background: #fff;
        }
        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 0.9rem;
        }
        .comp-table th, .comp-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
        }
        .comp-table th {
            background-color: var(--bg-light);
            font-weight: 700;
        }
        .comp-table tr:last-child td {
            border-bottom: none;
        }
        .highlight-col {
            background-color: rgba(59, 130, 246, 0.02);
            font-weight: 600;
        }
        .tag-yes {
            color: #10b981;
            font-weight: bold;
        }
        .tag-no {
            color: #ef4444;
        }

        /* 11. 智能需求匹配 + 20. 联系我们 */
        #match-contact {
            background-color: var(--bg-light);
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
        }
        .form-box {
            background: var(--bg-card);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.3s;
        }
        .form-control:focus {
            border-color: var(--primary);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        .submit-btn {
            width: 100%;
            background: var(--primary-grad);
            color: #fff;
            border: none;
            padding: 14px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s;
        }
        .submit-btn:hover {
            opacity: 0.95;
        }
        
        .contact-info-box {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .contact-details {
            background: var(--bg-card);
            padding: 30px;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            margin-bottom: 20px;
        }
        .contact-item {
            margin-bottom: 20px;
        }
        .contact-item h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }
        .contact-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .qrcode-box {
            text-align: center;
            padding: 20px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }
        .qrcode-box img {
            width: 130px;
            height: 130px;
            margin-bottom: 10px;
        }
        .qrcode-box p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 12. Token比价参考 */
        #token-pricing {
            background-color: var(--bg-card);
        }
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .token-card {
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 25px;
            background: var(--bg-light);
            text-align: center;
        }
        .token-card h4 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }
        .token-price {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            margin: 15px 0;
        }
        .token-features {
            list-style: none;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 2;
        }

        /* 13. 职业技术培训 + 14. 人工智能培训 */
        #training {
            background-color: var(--bg-light);
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }
        .training-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 20px;
            text-align: center;
            transition: all 0.3s;
        }
        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }
        .training-card h4 {
            font-size: 1rem;
            margin-bottom: 10px;
            color: #0f172a;
        }
        .training-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .training-badge {
            display: inline-block;
            background: rgba(16, 185, 129, 0.1);
            color: #10b981;
            font-size: 0.75rem;
            padding: 3px 8px;
            border-radius: 4px;
            margin-top: 10px;
            font-weight: bold;
        }

        /* 15. 帮助中心 + 17. 常见问题自助排查 + 18. 网站术语百科 */
        #help-center {
            background-color: var(--bg-card);
        }
        .help-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 25px;
        }
        .help-box {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius);
        }
        .help-box h3 {
            font-size: 1.25rem;
            margin-bottom: 15px;
            border-bottom: 2px solid var(--primary);
            display: inline-block;
            padding-bottom: 5px;
        }
        .help-list {
            list-style: none;
        }
        .help-list li {
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        .help-list a {
            color: var(--text-main);
        }
        .help-list a:hover {
            color: var(--primary);
        }

        /* 16. 常见用户问题 FAQ */
        #faq {
            background-color: var(--bg-light);
        }
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            padding: 18px 20px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            font-size: 1rem;
        }
        .faq-question::after {
            content: "+";
            font-size: 1.25rem;
            color: var(--text-muted);
            transition: transform 0.3s;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(248, 250, 252, 0.5);
        }
        .faq-answer-inner {
            padding: 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
        }
        .faq-item.active .faq-question::after {
            content: "−";
        }

        /* 客户评论卡片 */
        #reviews {
            background-color: var(--bg-card);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .review-card {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: var(--radius);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-text {
            font-size: 0.9rem;
            color: var(--text-main);
            font-style: italic;
            margin-bottom: 20px;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .user-avatar-placeholder {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-grad);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.8rem;
        }
        .user-info h4 {
            font-size: 0.9rem;
            margin-bottom: 2px;
        }
        .user-info span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 19. 行业资讯 / 知识库 */
        #news {
            background-color: var(--bg-light);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
        }
        .news-left {
            background: var(--bg-card);
            padding: 30px;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-item {
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 20px;
        }
        .news-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 5px;
            display: block;
        }
        .news-item h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .news-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        
        .news-right {
            background: var(--bg-card);
            padding: 30px;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 30px;
        }
        .tag-item {
            background: var(--bg-light);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            border: 1px solid var(--border-color);
            color: var(--text-main);
        }
        .tag-item:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .recent-articles-list {
            list-style: none;
        }
        .recent-articles-list li {
            margin-bottom: 12px;
            font-size: 0.9rem;
            border-bottom: 1px dashed var(--border-color);
            padding-bottom: 8px;
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            border-top: 1px solid #1e293b;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo-area {
            margin-bottom: 20px;
        }
        .footer-logo-area h3 {
            color: #fff;
            font-size: 1.5rem;
            margin-bottom: 10px;
        }
        .footer-links h4, .footer-contact h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 1.05rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94a3b8;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
        }
        .friend-links {
            margin-top: 20px;
            border-top: 1px dashed #1e293b;
            padding-top: 15px;
            font-size: 0.8rem;
        }
        .friend-links a {
            color: #64748b;
            margin-right: 15px;
        }
        .friend-links a:hover {
            color: #fff;
        }

        /* 悬浮客服 */
        .float-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .float-item {
            width: 50px;
            height: 50px;
            background: #fff;
            border-radius: 50%;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border: 1px solid var(--border-color);
            position: relative;
        }
        .float-item:hover .float-tooltip {
            opacity: 1;
            visibility: visible;
        }
        .float-tooltip {
            position: absolute;
            right: 60px;
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            text-align: center;
            width: 150px;
        }
        .float-tooltip img {
            width: 100px;
            height: 100px;
            margin-bottom: 5px;
        }
        .float-tooltip p {
            font-size: 0.75rem;
            color: var(--text-main);
            font-weight: bold;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .workflow-steps {
                grid-template-columns: repeat(3, 1fr);
            }
            .s-flow-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: var(--shadow-md);
            }
            .nav-links.active {
                display: flex;
            }
            .about-grid, .form-grid, .network-grid, .news-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .workflow-steps, .s-flow-grid, .training-grid, .cases-grid, .reviews-grid, .token-grid, .help-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
        }