:root {
            --primary: #4f46e5;
            --primary-gradient: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 50%, #ec4899 100%);
            --secondary: #06b6d4;
            --text-main: #0f172a;
            --text-muted: #475569;
            --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-lg: 16px;
            --radius-md: 12px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

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

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-area img {
            height: 38px;
        }

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

        .nav-link {
            color: var(--text-muted);
            font-weight: 500;
            font-size: 14px;
            padding: 6px 12px;
            border-radius: 6px;
        }

        .nav-link:hover {
            color: var(--primary);
            background-color: rgba(79, 70, 229, 0.05);
        }

        .nav-btn {
            background: var(--primary-gradient);
            color: #fff !important;
            padding: 8px 18px;
            border-radius: 20px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(99, 102, 241, 0.2);
        }

        .nav-btn:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-main);
        }

        /* Hero首屏 - 严禁出现任何图片 */
        .hero {
            position: relative;
            padding: 120px 0 90px;
            background: radial-gradient(circle at 80% 20%, rgba(99, 102, 241, 0.08) 0%, rgba(236, 72, 153, 0.05) 50%, rgba(255, 255, 255, 0) 100%), #ffffff;
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }

        .hero-tag {
            display: inline-block;
            background: linear-gradient(90deg, rgba(59, 130, 246, 0.1), rgba(236, 72, 153, 0.1));
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.5px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 20px;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 750px;
            margin: 0 auto 36px;
        }

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

        .btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            padding: 14px 28px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 8px 20px rgba(99, 102, 241, 0.25);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(99, 102, 241, 0.35);
        }

        .btn-secondary {
            background: #fff;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            padding: 14px 28px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background-color: var(--bg-light);
            border-color: #cbd5e1;
        }

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            margin-top: 60px;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

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

        /* 统一Section样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-title h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
            background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

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

        .about-content h3 {
            font-size: 24px;
            margin-bottom: 16px;
        }

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

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

        .about-bullets li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .about-bullets li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: bold;
        }

        .software-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .soft-card {
            background: #fff;
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .soft-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(99, 102, 241, 0.3);
        }

        .soft-card h4 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 8px;
        }

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

        /* AIGC服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(99, 102, 241, 0.2);
        }

        .service-icon {
            font-size: 32px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud span {
            background-color: var(--bg-light);
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 12px;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
        }

        /* 制作流程 & 标准服务流程 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            width: 2px;
            height: 100%;
            background-color: var(--border-color);
            top: 0;
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
            box-sizing: border-box;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-badge {
            position: absolute;
            top: 25px;
            width: 20px;
            height: 20px;
            background: var(--primary-gradient);
            border-radius: 50%;
            z-index: 10;
        }

        .timeline-item:nth-child(odd) .timeline-badge {
            right: -10px;
        }

        .timeline-item:nth-child(even) .timeline-badge {
            left: -10px;
        }

        .timeline-panel {
            background: #fff;
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .timeline-panel h3 {
            margin-bottom: 8px;
            font-size: 18px;
            color: var(--primary);
        }

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

        /* 对比评测 */
        .rating-box {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 30px;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.03), rgba(236, 72, 153, 0.03));
            padding: 30px;
            border-radius: var(--radius-lg);
            margin-bottom: 40px;
            border: 1px solid var(--border-color);
        }

        .rating-num {
            font-size: 64px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }

        .rating-stars {
            font-size: 24px;
            color: #fbbf24;
            margin-bottom: 8px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            background: #fff;
        }

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

        th, td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        th {
            background-color: var(--bg-light);
            font-weight: 600;
            color: var(--text-main);
        }

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

        .highlight-col {
            background-color: rgba(99, 102, 241, 0.02);
            font-weight: 600;
        }

        /* 案例展示区 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

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

        .case-img-container {
            width: 100%;
            position: relative;
            background-color: #f1f5f9;
        }

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

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

        .case-body {
            padding: 24px;
        }

        .case-body h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .case-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .token-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
        }

        .token-name {
            font-size: 18px;
            font-weight: bold;
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 24px;
            color: #10b981;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .token-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

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

        .training-card {
            background: linear-gradient(180deg, #fff 0%, var(--bg-light) 100%);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .training-card h3 {
            font-size: 16px;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .training-tag {
            display: inline-block;
            background-color: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 10px;
            font-size: 11px;
            margin-bottom: 10px;
        }

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

        .review-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .review-content {
            font-style: italic;
            color: var(--text-muted);
            margin-bottom: 16px;
            font-size: 14px;
        }

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

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

        .author-info h4 {
            font-size: 14px;
            margin-bottom: 2px;
        }

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

        /* FAQ */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

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

        .faq-header {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            outline: none;
        }

        .faq-icon {
            transition: transform 0.2s;
            font-weight: normal;
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            border-top: 0 solid var(--border-color);
        }

        .faq-content {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 14px;
        }

        /* 术语百科与自助排查 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .wiki-box, .trouble-box {
            background-color: #fff;
            padding: 30px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
        }

        .wiki-list, .trouble-list {
            list-style: none;
            margin-top: 15px;
        }

        .wiki-list li, .trouble-list li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }

        .wiki-list li:last-child, .trouble-list li:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .wiki-title, .trouble-title {
            font-weight: 600;
            font-size: 15px;
            margin-bottom: 4px;
            color: var(--primary);
        }

        .wiki-desc, .trouble-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 行业资讯 & 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .news-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .news-card h3 {
            font-size: 16px;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-card a {
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 需求匹配表单区 */
        .form-section {
            background: linear-gradient(180deg, var(--bg-light) 0%, #fff 100%);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }

        .form-info h3 {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .form-info p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

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

        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
            font-size: 15px;
        }

        .contact-item span {
            color: var(--text-muted);
        }

        .qr-area {
            display: flex;
            gap: 20px;
            align-items: center;
            background: #fff;
            padding: 20px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            max-width: 320px;
        }

        .qr-area img {
            width: 80px;
            height: 80px;
            object-fit: cover;
        }

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

        .main-form {
            background: #fff;
            padding: 36px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            background-color: var(--bg-light);
            color: var(--text-main);
            outline: none;
            font-size: 14px;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--primary);
            background-color: #fff;
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }

        .form-submit-btn {
            width: 100%;
            background: var(--primary-gradient);
            color: #fff;
            border: none;
            padding: 12px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 6px;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
            transition: var(--transition);
        }

        .form-submit-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 15px rgba(99, 102, 241, 0.3);
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 14px;
        }

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

        .footer-col h4 {
            color: #f8fafc;
            font-size: 16px;
            margin-bottom: 20px;
            font-weight: 600;
        }

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

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

        .footer-col ul li a {
            color: #94a3b8;
        }

        .footer-col ul li a:hover {
            color: #f8fafc;
        }

        .friend-links {
            border-top: 1px solid #1e293b;
            padding: 24px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .friend-links span {
            font-size: 13px;
            color: #64748b;
        }

        .friend-links a {
            color: #64748b;
            font-size: 13px;
            margin-right: 12px;
        }

        .friend-links a:hover {
            color: #f8fafc;
        }

        .copyright-area {
            border-top: 1px solid #1e293b;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
        }

        /* 浮动面板 */
        .floating-contact {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            background: #fff;
            border-radius: 50%;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .float-btn:hover {
            transform: scale(1.05);
        }

        .float-btn svg {
            width: 20px;
            height: 20px;
            fill: var(--primary);
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 12px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            display: none;
            text-align: center;
            width: 140px;
        }

        .qr-popover img {
            width: 110px;
            height: 110px;
            object-fit: cover;
            margin-bottom: 6px;
        }

        .qr-popover p {
            font-size: 11px;
            color: var(--text-muted);
            margin: 0;
        }

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

        /* 响应式调整 */
        @media (max-width: 992px) {
            .about-grid, .form-grid, .troubleshoot-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 34px;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left !important;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
            .timeline-badge {
                left: 10px !important;
            }
            .case-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: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px 24px;
                gap: 12px;
                box-shadow: var(--shadow-md);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .rating-box {
                flex-direction: column;
                text-align: center;
            }
        }