:root {
            --primary: #0062ff;
            --primary-light: #e6f0ff;
            --secondary: #00d2ff;
            --dark-gray: #1e293b;
            --light-gray: #f8fafc;
            --border-color: #e2e8f0;
            --accent: #ff4757;
            --text-color: #334155;
            --text-muted: #64748b;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-color);
            background-color: #ffffff;
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 统一容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 标题排版 */
        h1, h2, h3, h4 {
            color: var(--dark-gray);
            font-weight: 700;
            line-height: 1.3;
        }

        h2 {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 12px;
            position: relative;
        }
        
        .section-desc {
            text-align: center;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 48px auto;
            font-size: 1.05rem;
        }

        /* 头部与导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

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

        .brand-name {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-link {
            color: var(--text-color);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
        }

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

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff !important;
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 0.9rem;
            text-shadow: 0 1px 2px rgba(0,0,0,0.1);
        }

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

        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--dark-gray);
            transition: var(--transition);
        }

        /* Hero 区域（禁止使用任何图片） */
        .hero {
            background: radial-gradient(circle at 80% 20%, rgba(0, 210, 255, 0.1) 0%, rgba(255, 255, 255, 1) 70%),
                        radial-gradient(circle at 10% 80%, rgba(0, 98, 255, 0.05) 0%, rgba(255, 255, 255, 1) 80%),
                        var(--light-gray);
            padding: 100px 0 80px 0;
            text-align: center;
        }

        .hero-badge {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .hero-title {
            font-size: 2.6rem;
            max-width: 900px;
            margin: 0 auto 20px auto;
            color: var(--dark-gray);
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 750px;
            margin: 0 auto 36px auto;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(0, 98, 255, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 98, 255, 0.4);
        }

        .btn-secondary {
            background-color: #ffffff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

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

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .stat-card {
            background: #ffffff;
            padding: 24px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 各个模块公用间距 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .bg-light {
            background-color: var(--light-gray);
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .about-text {
            color: var(--text-color);
            margin-bottom: 20px;
        }

        .about-features {
            list-style: none;
        }

        .about-features li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .about-features li::before {
            content: "✓";
            color: var(--primary);
            position: absolute;
            left: 0;
            font-weight: bold;
            font-size: 1.1rem;
        }

        /* 全平台AIGC服务 / 一站式制作 / 技术标准 */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .card {
            background-color: #ffffff;
            padding: 36px 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
            border-color: var(--primary);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 24px;
            font-weight: bold;
        }

        .card-title {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

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

        /* 支持的AI平台标签云 */
        .platform-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 36px;
            padding: 24px;
            background: #ffffff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .platform-tag {
            background-color: var(--light-gray);
            color: var(--text-color);
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        /* 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        .sol-card {
            background: linear-gradient(135deg, #ffffff, var(--light-gray));
            padding: 24px;
            border-radius: 10px;
            border-left: 4px solid var(--primary);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .sol-title {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }

        /* 流程步骤 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
            position: relative;
        }

        .step-card {
            background-color: #ffffff;
            padding: 24px;
            border-radius: 10px;
            border: 1px solid var(--border-color);
            position: relative;
            text-align: center;
        }

        .step-num {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin: 0 auto 16px auto;
        }

        /* 全国服务网络 */
        .network-section {
            background: radial-gradient(ellipse at center, rgba(0,210,255,0.05) 0%, rgba(255,255,255,1) 80%);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .network-map {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            text-align: center;
        }

        .network-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .network-item {
            background-color: #ffffff;
            padding: 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .network-point {
            width: 10px;
            height: 10px;
            background-color: var(--secondary);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.9); opacity: 0.6; }
            50% { transform: scale(1.2); opacity: 1; }
            100% { transform: scale(0.9); opacity: 0.6; }
        }

        /* 技术标准 */
        .tech-box {
            background-color: #ffffff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 36px;
            margin-top: 36px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.02);
        }

        /* 案例展示区（可展现配图） */
        .case-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .case-images {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .case-img-container {
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 6px 18px rgba(0,0,0,0.05);
            background-color: var(--light-gray);
            aspect-ratio: 16 / 9;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-img-container img:hover {
            transform: scale(1.03);
        }

        .case-card-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .case-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 20px;
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .case-thumb {
            width: 80px;
            height: 80px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            border: 1px solid var(--border-color);
        }

        .case-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            background: #ffffff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            margin-top: 24px;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

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

        .compare-table th {
            background-color: var(--light-gray);
            color: var(--dark-gray);
            font-weight: 700;
        }

        .compare-table tr:hover {
            background-color: var(--light-gray);
        }

        .compare-table tr.highlight {
            background-color: var(--primary-light);
        }

        .compare-table tr.highlight td {
            font-weight: 600;
            color: var(--primary);
        }

        .rating-star {
            color: #f1c40f;
            font-size: 1.1rem;
        }

        .badge-score {
            background-color: var(--primary);
            color: #ffffff;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .train-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }

        .train-card:hover {
            border-color: var(--primary);
            box-shadow: 0 6px 18px rgba(0, 98, 255, 0.08);
            transform: translateY(-3px);
        }

        .train-icon {
            font-size: 2rem;
            margin-bottom: 16px;
            display: inline-block;
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .review-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 28px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.01);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-style: italic;
            color: var(--text-color);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 0.9rem;
        }

        .user-info h4 {
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

        .user-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* FAQ折叠面板 & 自助排查 */
        .faq-wrapper {
            max-width: 850px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            background-color: #ffffff;
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: var(--transition);
        }

        .faq-question:hover {
            background-color: var(--light-gray);
        }

        .faq-question::after {
            content: "+";
            font-size: 1.3rem;
            color: var(--primary);
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--light-gray);
        }

        .faq-answer-content {
            padding: 20px 24px;
            border-top: 1px solid var(--border-color);
            color: var(--text-color);
            font-size: 0.95rem;
        }

        /* AI术语百科 */
        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .wiki-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
        }

        .wiki-term {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        /* 行业资讯 / 知识库 */
        .articles-wrapper {
            background-color: #ffffff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 30px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
        }

        .articles-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .articles-list li {
            border-bottom: 1px dashed var(--border-color);
            padding-bottom: 14px;
        }

        .articles-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .article-link {
            color: var(--dark-gray);
            text-decoration: none;
            font-weight: 500;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .article-link:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        /* 表单与加盟代理 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
        }

        .contact-info-box {
            background-color: #ffffff;
            padding: 36px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .qr-codes {
            display: flex;
            gap: 24px;
            margin-top: 24px;
        }

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

        .qr-item img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 4px;
            background-color: #ffffff;
        }

        .qr-item p {
            font-size: 0.85rem;
            margin-top: 6px;
            font-weight: 500;
        }

        .form-box {
            background-color: #ffffff;
            padding: 36px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0,0,0,0.03);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            font-size: 0.95rem;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            background-color: var(--light-gray);
            font-size: 1rem;
            color: var(--text-color);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #ffffff;
            box-shadow: 0 0 0 3px rgba(0, 98, 255, 0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark-gray);
            color: #e2e8f0;
            padding: 60px 0 30px 0;
            border-top: 1px solid #334155;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

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

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a, .footer-links span {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #ffffff;
            padding-left: 4px;
        }

        .friend-links {
            border-top: 1px solid #334155;
            padding-top: 24px;
            margin-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .friend-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

        .copyright-bar {
            border-top: 1px solid #334155;
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }

        /* 浮动客服入口 */
        .floating-service {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,98,255,0.3);
            transition: var(--transition);
            text-decoration: none;
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--secondary);
            transform: scale(1.08);
        }

        .float-btn-text {
            font-size: 0.75rem;
            font-weight: 600;
            text-align: center;
            line-height: 1.2;
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            padding: 16px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 160px;
        }

        .qr-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
        }

        .qr-popover p {
            color: var(--dark-gray);
            font-size: 0.8rem;
            margin: 0;
            font-weight: 600;
        }

        .float-btn:hover .qr-popover {
            display: block;
        }

        /* 移动端响应式调整 */
        @media (max-width: 992px) {
            .about-grid, .network-grid, .case-grid, .token-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 2.1rem;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background-color: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px 24px;
                gap: 16px;
                box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-toggle {
                display: flex;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-desc {
                font-size: 1rem;
            }

            .btn {
                width: 100%;
            }

            .qr-codes {
                justify-content: center;
            }
        }