:root {
            --primary: #4f46e5;
            --primary-light: #818cf8;
            --secondary: #ec4899;
            --accent: #f59e0b;
            --dark: #0f172a;
            --light: #f8fafc;
            --text-main: #334155;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --gradient-hero: linear-gradient(135deg, #4f46e5 0%, #ec4899 50%, #f59e0b 100%);
            --gradient-card: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }

        * {
            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(--light);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        /* 渐变标题 */
        .gradient-text {
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: var(--gradient-hero);
            color: #fff;
            box-shadow: var(--shadow-md);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            opacity: 0.95;
        }

        .btn-secondary {
            background: #fff;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s;
        }

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

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 3px;
            transition: 0.3s;
        }

        /* 首屏 Hero - 无图片 */
        #home {
            padding-top: 140px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 10% 20%, rgba(79, 70, 229, 0.05) 0%, rgba(236, 72, 153, 0.05) 90%);
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
        }

        h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 20px;
        }

        .stat-card {
            background: #fff;
            padding: 30px 20px;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Section Header */
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px auto;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .section-header p {
            color: var(--text-muted);
        }

        /* 关于我们 */
        #about {
            background: #fff;
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .about-features {
            list-style: none;
            margin-top: 30px;
        }

        .about-features li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 15px;
            font-weight: 500;
        }

        .about-features li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: 900;
            font-size: 1.2rem;
        }

        /* 全平台AIGC服务 */
        #services {
            background: var(--light);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: #fff;
            padding: 35px 25px;
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

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

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            margin-bottom: 10px;
            color: var(--dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .models-tags {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .model-tag {
            font-size: 0.75rem;
            background: var(--light);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        /* 一站式AIGC制作 */
        #creation {
            background: #fff;
        }

        .creation-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .showcase-item {
            background: var(--light);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: 0.3s;
        }

        .showcase-item:hover {
            box-shadow: var(--shadow-md);
        }

        .showcase-content {
            padding: 30px;
        }

        .showcase-content h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .showcase-content p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        /* 全行业解决方案 */
        #solutions {
            background: var(--light);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: #fff;
            padding: 40px 30px;
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: 0.3s;
        }

        .solution-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--secondary);
        }

        /* 全国服务网络 */
        #network {
            background: #fff;
            text-align: center;
        }

        .network-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .network-node {
            background: var(--light);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        /* 标准化AIGC流程 */
        #workflow {
            background: var(--light);
        }

        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }

        .workflow-step {
            background: #fff;
            padding: 30px 20px;
            border-radius: 16px;
            text-align: center;
            border: 1px solid var(--border-color);
            z-index: 2;
        }

        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gradient-hero);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px auto;
            font-weight: 700;
        }

        /* 技术标准 */
        #standards {
            background: #fff;
        }

        .standards-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 30px;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .standards-table th, .standards-table td {
            padding: 18px 24px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }

        .standards-table th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        .standards-table tr:last-child td {
            border-bottom: none;
        }

        /* 客户案例中心 */
        #cases {
            background: var(--light);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            background: #fff;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .case-img-container {
            width: 100%;
            height: 240px;
            overflow: hidden;
            background: #e2e8f0;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .case-info {
            padding: 30px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(236, 72, 153, 0.1);
            color: var(--secondary);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 15px;
        }

        /* 对比评测 */
        #comparison {
            background: #fff;
        }

        .rating-box {
            background: var(--light);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--border-color);
            margin-bottom: 50px;
            text-align: center;
        }

        .rating-stars {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .rating-score span {
            font-size: 1.5rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        /* 智能需求匹配 */
        #matching {
            background: var(--light);
        }

        .matching-box {
            background: #fff;
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            max-width: 800px;
            margin: 0 auto;
        }

        .matching-option-group {
            margin-bottom: 30px;
        }

        .matching-option-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .matching-options {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
        }

        .matching-btn {
            background: var(--light);
            border: 2px solid var(--border-color);
            padding: 12px;
            border-radius: 12px;
            cursor: pointer;
            text-align: center;
            font-weight: 500;
            transition: all 0.3s;
        }

        .matching-btn.active {
            border-color: var(--primary);
            background: rgba(79, 70, 229, 0.05);
            color: var(--primary);
        }

        .matching-result {
            background: var(--light);
            border-radius: 12px;
            padding: 20px;
            margin-top: 30px;
            display: none;
            border-left: 4px solid var(--primary);
        }

        /* Token比价参考 */
        #pricing {
            background: #fff;
        }

        .pricing-table-container {
            overflow-x: auto;
        }

        .pricing-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .pricing-table th, .pricing-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }

        .pricing-table th {
            background: var(--light);
            color: var(--dark);
            font-weight: 600;
        }

        .pricing-highlight {
            color: var(--secondary);
            font-weight: 700;
        }

        /* 职业技术与人工智能培训 */
        #vocational, #ai-training {
            background: var(--light);
        }

        #ai-training {
            background: #fff;
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 25px;
        }

        .training-card {
            background: #fff;
            padding: 30px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: 0.3s;
        }

        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--secondary);
        }

        /* 常见用户问题 FAQ */
        #faq {
            background: var(--light);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: 12px;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: 0.3s;
        }

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            color: var(--dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: "+";
            font-size: 1.5rem;
            color: var(--primary);
            transition: transform 0.3s;
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 20px 24px;
            color: var(--text-muted);
            display: none;
        }

        /* 常见问题自助排查 & AI术语百科 */
        #troubleshoot, #encyclopedia {
            background: #fff;
        }

        #encyclopedia {
            background: var(--light);
        }

        .trouble-grid, .encyclopedia-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .trouble-card, .encyclopedia-card {
            background: #fff;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

        /* 行业资讯 / 知识库 */
        #news {
            background: #fff;
        }

        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .news-card {
            background: var(--light);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            transition: 0.3s;
        }

        .news-card:hover {
            border-color: var(--primary);
            background: #fff;
        }

        .news-card h3 {
            font-size: 1.2rem;
            margin-bottom: 15px;
        }

        .news-card a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 15px;
        }

        /* 客户评论卡片 (6条评论) */
        #reviews {
            background: var(--light);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: #fff;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
        }

        .author-info h4 {
            color: var(--dark);
            font-size: 1rem;
        }

        .author-info p {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* 加盟代理 */
        #agency {
            background: #fff;
            text-align: center;
        }

        .agency-box {
            background: var(--light);
            border-radius: 24px;
            padding: 50px 40px;
            border: 1px solid var(--border-color);
            max-width: 900px;
            margin: 0 auto;
        }

        /* 联系我们 & 表单 */
        #contact {
            background: var(--light);
        }

        .contact-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-details {
            margin-bottom: 30px;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 20px;
        }

        .contact-item span {
            font-weight: 700;
            color: var(--primary);
        }

        .qr-codes {
            display: flex;
            gap: 30px;
            margin-top: 30px;
        }

        .qr-item {
            text-align: center;
        }

        .qr-item img {
            width: 140px;
            height: 140px;
            border-radius: 8px;
            margin-bottom: 10px;
            border: 1px solid var(--border-color);
        }

        .contact-form {
            background: #fff;
            padding: 40px;
            border-radius: 24px;
            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: 500;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            font-size: 1rem;
            outline: none;
            transition: 0.3s;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
        }

        /* 友情链接与页脚 */
        footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }

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

        .footer-col h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }

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

        .friend-links {
            border-top: 1px solid #334155;
            padding-top: 30px;
            margin-bottom: 30px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friend-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s;
        }

        .friend-links a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 30px;
            text-align: center;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        /* 浮动组件 */
        .floating-widgets {
            position: fixed;
            bottom: 40px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }

        .widget-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fff;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: 0.3s;
            border: 1px solid var(--border-color);
            position: relative;
        }

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

        .widget-btn.wechat:hover .widget-popover {
            display: block;
        }

        .widget-popover {
            display: none;
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 15px;
            border-radius: 12px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            text-align: center;
            width: 160px;
        }

        .widget-popover img {
            width: 130px;
            height: 130px;
            margin-bottom: 5px;
        }

        .widget-popover p {
            font-size: 0.75rem;
            color: var(--text-main);
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solutions-grid {
                grid-template-columns: 1fr 1fr;
            }
            .workflow-steps {
                grid-template-columns: repeat(3, 1fr);
            }
            .reviews-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #fff;
                padding: 20px;
                box-shadow: var(--shadow-md);
                border-top: 1px solid var(--border-color);
            }
            
            .nav-links.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .about-content, .contact-container, .cases-grid {
                grid-template-columns: 1fr;
            }

            .solutions-grid, .workflow-steps, .reviews-grid, .network-grid {
                grid-template-columns: 1fr;
            }

            h1 {
                font-size: 2.2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-bottom {
                flex-direction: column;
            }
        }