:root {
            --primary: #0052D9;
            --primary-hover: #002FA7;
            --secondary: #00A870;
            --bg-light: #F2F4F7;
            --bg-white: #FFFFFF;
            --text-main: #1D2129;
            --text-muted: #4E5969;
            --text-light: #86909C;
            --border-color: #E5E6EB;
            --shadow-sm: 0 2px 8px rgba(0, 82, 217, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 82, 217, 0.08);
            --radius: 8px;
            --container-width: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        ul {
            list-style: none;
        }

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

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

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

        .nav-wrapper {
            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;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
        }

        .nav-item {
            color: var(--text-muted);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.2s;
        }

        .nav-item:hover, .nav-item.active {
            color: var(--primary);
            background-color: rgba(0, 82, 217, 0.05);
        }

        .nav-btn {
            background-color: var(--primary);
            color: #fff;
            padding: 8px 16px;
            border-radius: 4px;
            font-size: 14px;
            font-weight: 500;
            transition: background-color 0.2s;
        }

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

        /* 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);
            transition: 0.3s;
        }

        /* Hero 首屏 - 纯色/渐变，无图片 */
        .hero {
            background: linear-gradient(135deg, #002FA7 0%, #0052D9 100%);
            color: #FFFFFF;
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 80% 20%, rgba(0, 168, 112, 0.15) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero-tag {
            background-color: rgba(255, 255, 255, 0.15);
            display: inline-block;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 1px;
            animation: fadeIn 1s ease;
        }

        .hero h1 {
            font-size: 40px;
            line-height: 1.25;
            margin-bottom: 20px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 800px;
            margin: 0 auto 35px auto;
        }

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

        .btn-primary {
            background-color: #FFFFFF;
            color: var(--primary);
            padding: 14px 30px;
            border-radius: var(--radius);
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
            transition: all 0.3s;
        }

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

        .btn-secondary {
            background-color: transparent;
            color: #FFFFFF;
            border: 1px solid rgba(255, 255, 255, 0.4);
            padding: 14px 30px;
            border-radius: var(--radius);
            font-size: 16px;
            font-weight: 600;
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: #FFFFFF;
            transform: translateY(-2px);
        }

        /* 数据指标 */
        .stats-bar {
            background-color: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            padding: 30px 0;
            box-shadow: var(--shadow-sm);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item h3 {
            font-size: 32px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 5px;
        }

        .stat-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 通用区块样式 */
        section {
            padding: 80px 0;
        }

        .section-white {
            background-color: var(--bg-white);
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 28px;
            color: var(--text-main);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
            padding-bottom: 10px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-muted);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 关于我们 & 介绍 */
        .about-content {
            display: flex;
            gap: 50px;
            align-items: center;
        }

        .about-text {
            flex: 1;
        }

        .about-text h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: var(--primary);
        }

        .about-text p {
            margin-bottom: 15px;
            color: var(--text-muted);
            font-size: 15px;
        }

        .features-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-top: 25px;
        }

        .feature-tag {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-main);
            font-weight: 500;
        }

        .feature-tag::before {
            content: '✓';
            color: var(--secondary);
            font-weight: bold;
        }

        /* 全平台AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .service-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-sm);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(0, 82, 217, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 24px;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .model-tag {
            font-size: 11px;
            background-color: var(--bg-light);
            color: var(--text-muted);
            padding: 2px 8px;
            border-radius: 4px;
        }

        /* 一站式AIGC制作 */
        .production-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .prod-card {
            background-color: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
        }

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

        .prod-info {
            padding: 20px;
        }

        .prod-info h3 {
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .prod-info p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 全行业解决方案 */
        .solutions-tabs {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .sol-item {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: var(--radius);
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .sol-item h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .sol-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 服务网络 & 技术标准 */
        .network-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .net-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
        }

        .net-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--primary);
        }

        .net-card ul li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .net-card ul li::before {
            content: '●';
            color: var(--primary);
            position: absolute;
            left: 0;
        }

        /* 流程步骤 */
        .steps-container {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            position: relative;
        }

        .step-node {
            flex: 1;
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            text-align: center;
            z-index: 2;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px auto;
            font-weight: 700;
        }

        .step-node h3 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .step-node p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测表格 */
        .compare-table-wrapper {
            background-color: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            overflow-x: auto;
            border: 1px solid var(--border-color);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .compare-table th, .compare-table td {
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background-color: #F8F9FA;
            font-weight: 600;
            color: var(--text-main);
        }

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

        .recommend-badge {
            background-color: var(--secondary);
            color: #fff;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 12px;
            display: inline-block;
        }

        /* Token 比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .price-card {
            background-color: var(--bg-white);
            padding: 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            text-align: center;
            border: 1px solid var(--border-color);
        }

        .price-card.featured {
            border-color: var(--primary);
            position: relative;
        }

        .price-card.featured::after {
            content: '推荐';
            position: absolute;
            top: 10px;
            right: 10px;
            background-color: var(--primary);
            color: #fff;
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
        }

        .price-value {
            font-size: 28px;
            color: var(--primary);
            font-weight: 700;
            margin: 15px 0;
        }

        .price-features li {
            padding: 8px 0;
            font-size: 13px;
            color: var(--text-muted);
            border-bottom: 1px dashed var(--border-color);
        }

        /* 职业技术培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .train-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: var(--radius);
            text-align: center;
            transition: all 0.3s;
        }

        .train-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .train-card h3 {
            font-size: 14px;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .train-badge {
            background-color: rgba(0, 168, 112, 0.1);
            color: var(--secondary);
            font-size: 12px;
            padding: 2px 8px;
            border-radius: 12px;
            display: inline-block;
        }

        /* 案例展示 - 包含指定图片 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

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

        .case-img-box {
            position: relative;
            background-color: #F8F9FA;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

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

        .case-info {
            padding: 20px;
        }

        .case-info h3 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .case-info p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            margin-bottom: 15px;
            overflow: hidden;
        }

        .faq-header {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            user-select: none;
            transition: background-color 0.2s;
        }

        .faq-header:hover {
            background-color: #F8F9FA;
        }

        .faq-icon {
            font-size: 18px;
            transition: transform 0.3s;
        }

        .faq-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            font-size: 14px;
            color: var(--text-muted);
            border-top: 0 solid var(--border-color);
        }

        .faq-item.active .faq-content {
            padding: 20px;
            max-height: 300px;
            border-top: 1px solid var(--border-color);
        }

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

        /* 客户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .comment-card {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .avatar {
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
        }

        .user-info h4 {
            font-size: 14px;
            color: var(--text-main);
        }

        .user-info span {
            font-size: 11px;
            color: var(--text-light);
        }

        .comment-text {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 资讯与知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .news-card {
            background-color: var(--bg-white);
            padding: 20px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .news-date {
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .news-card h3 {
            font-size: 16px;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .news-card a {
            font-size: 13px;
            font-weight: 500;
            display: inline-block;
            margin-top: 10px;
        }

        /* 智能需求匹配与联系我们 - 带表单 */
        .contact-section-grid {
            display: grid;
            grid-template-columns: 3fr 2fr;
            gap: 40px;
        }

        .form-box {
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
        }

        .form-box h3 {
            font-size: 22px;
            margin-bottom: 25px;
            color: var(--text-main);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 14px;
            transition: border-color 0.2s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }

        .form-submit-btn {
            background-color: var(--primary);
            color: #fff;
            border: none;
            padding: 14px 28px;
            border-radius: 4px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            width: 100%;
            transition: background-color 0.2s;
        }

        .form-submit-btn:hover {
            background-color: var(--primary-hover);
        }

        .contact-info-box {
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-item {
            margin-bottom: 20px;
        }

        .contact-item h4 {
            font-size: 15px;
            color: var(--text-main);
            margin-bottom: 5px;
        }

        .contact-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

        .qr-area {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-top: 20px;
            text-align: center;
        }

        .qr-item img {
            width: 100px;
            height: 100px;
            margin: 0 auto 5px auto;
            border: 1px solid var(--border-color);
            border-radius: 4px;
        }

        .qr-item span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 侧边悬浮客服 */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .float-btn:hover {
            background-color: var(--primary-hover);
            transform: scale(1.05);
        }

        .float-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: #fff;
            border: 1px solid var(--border-color);
            padding: 10px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            display: none;
            text-align: center;
        }

        .float-qr img {
            width: 120px;
            height: 120px;
        }

        .float-qr p {
            font-size: 11px;
            color: var(--text-main);
            margin-top: 5px;
        }

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

        /* 友情链接 */
        .friendly-links {
            background-color: var(--bg-white);
            border-top: 1px solid var(--border-color);
            padding: 20px 0;
            font-size: 13px;
        }

        .links-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .links-wrapper span {
            font-weight: 600;
            color: var(--text-main);
        }

        .links-wrapper a {
            color: var(--text-muted);
            margin-right: 15px;
        }

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

        /* 页脚 */
        footer {
            background-color: #1A1F26;
            color: #BAC3D0;
            padding: 40px 0;
            font-size: 13px;
            border-top: 1px solid #2E353F;
        }

        .footer-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-left p {
            margin-bottom: 5px;
        }

        .footer-right {
            display: flex;
            gap: 15px;
        }

        .footer-right a {
            color: #BAC3D0;
        }

        .footer-right a:hover {
            color: #FFFFFF;
        }

        /* 响应式样式 */
        @media (max-width: 992px) {
            .services-grid, .production-grid, .comments-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .contact-section-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 15px 20px;
                box-shadow: var(--shadow-md);
            }
            .nav-menu.show {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 28px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-content {
                flex-direction: column;
            }
            .services-grid, .production-grid, .comments-grid, .news-grid, .cases-grid {
                grid-template-columns: 1fr;
            }
            .steps-container {
                flex-direction: column;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .price-grid {
                grid-template-columns: 1fr;
            }
        }