:root {
            --primary: #8b5cf6;
            --primary-light: #ede9fe;
            --primary-dark: #6d28d9;
            --secondary: #ec4899;
            --text-main: #1f2937;
            --text-muted: #4b5563;
            --bg-main: #ffffff;
            --bg-light: #f8f6fc;
            --border-color: #e5e7eb;
            --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(139, 92, 246, 0.1), 0 4px 6px -2px rgba(139, 92, 246, 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(--bg-main);
        }

        body {
            line-height: 1.6;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

        .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;
            width: auto;
        }

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

        .nav-menu a {
            text-decoration: none;
            color: var(--text-muted);
            font-weight: 500;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            padding: 8px 18px;
            border-radius: 20px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            transition: opacity 0.3s;
        }

        .nav-btn:hover {
            opacity: 0.9;
        }

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

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 2px;
        }

        /* Hero首屏 - 严禁出现图片 */
        .hero {
            padding: 80px 0 100px;
            background: radial-gradient(circle at 90% 10%, rgba(236, 72, 153, 0.08), transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(139, 92, 246, 0.08), transparent 40%),
                        var(--bg-light);
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero h1 {
            font-size: 2.5rem;
            line-height: 1.2;
            color: #1e1b4b;
            margin-bottom: 20px;
            font-weight: 800;
        }

        .hero h1 span {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 60px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            padding: 14px 28px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            box-shadow: var(--shadow-lg);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 20px -3px rgba(139, 92, 246, 0.2);
        }

        .btn-secondary {
            background: white;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            padding: 14px 28px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: background 0.2s;
        }

        .btn-secondary:hover {
            background: var(--bg-light);
        }

        /* 数据指标卡片 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .metric-card {
            background: white;
            padding: 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }

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

        .metric-val {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 块通用 */
        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;
            color: #1e1b4b;
            font-weight: 700;
            margin-bottom: 15px;
        }

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

        /* 关于我们 & 软件介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            color: var(--primary-dark);
            margin-bottom: 20px;
        }

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

        .platform-features {
            list-style: none;
            margin-top: 20px;
        }

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

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

        .about-visual {
            background: linear-gradient(135deg, var(--primary-light), #fae8ff);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid rgba(139, 92, 246, 0.2);
        }

        /* 服务体系 & 支持模型 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: box-shadow 0.3s, transform 0.3s;
        }

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

        .service-icon {
            font-size: 36px;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: #1e1b4b;
        }

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

        .model-tags-container {
            margin-top: 50px;
            background: var(--bg-light);
            padding: 30px;
            border-radius: 16px;
            text-align: center;
        }

        .model-tags-container h3 {
            margin-bottom: 20px;
            color: #1e1b4b;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .tag {
            background: white;
            border: 1px solid var(--border-color);
            padding: 6px 12px;
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-muted);
            transition: all 0.2s;
        }

        .tag:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }

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

        .workflow-step {
            display: flex;
            gap: 30px;
            margin-bottom: 40px;
            position: relative;
        }

        .workflow-step::before {
            content: "";
            position: absolute;
            left: 20px;
            top: 40px;
            bottom: -40px;
            width: 2px;
            background: var(--border-color);
        }

        .workflow-step:last-child::before {
            display: none;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
            z-index: 2;
        }

        .step-content {
            background: var(--bg-light);
            padding: 20px;
            border-radius: 8px;
            width: 100%;
        }

        .step-content h3 {
            margin-bottom: 8px;
            color: #1e1b4b;
        }

        /* 对比评测 - 核心 */
        .comparison-table-wrapper {
            overflow-x: auto;
            margin-top: 30px;
            background: white;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

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

        .comparison-table th {
            background-color: var(--bg-light);
            font-weight: 600;
            color: #1e1b4b;
        }

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

        .highlight-col {
            background-color: rgba(139, 92, 246, 0.03);
            font-weight: 600;
        }

        .rating-box {
            background: linear-gradient(135deg, var(--primary-light), #fae8ff);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            margin-top: 40px;
            border: 1px solid rgba(139, 92, 246, 0.2);
        }

        .rating-score {
            font-size: 48px;
            font-weight: 800;
            color: var(--primary-dark);
        }

        .rating-stars {
            color: #fbbf24;
            font-size: 24px;
            margin: 8px 0;
        }

        /* 案例展示区 */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .gallery-item {
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: white;
            box-shadow: var(--shadow-sm);
        }

        .gallery-item img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
        }

        .gallery-info {
            padding: 15px;
        }

        .gallery-info h4 {
            font-size: 16px;
            margin-bottom: 5px;
            color: #1e1b4b;
        }

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

        /* Token 比价 */
        .token-pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .pricing-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            position: relative;
        }

        .pricing-card.popular {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }

        .pricing-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--secondary);
            color: white;
            font-size: 12px;
            padding: 4px 8px;
            border-radius: 12px;
        }

        .pricing-price {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 20px 0;
        }

        /* 培训 */
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .training-box {
            background: var(--bg-light);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

        .training-box h3 {
            font-size: 22px;
            color: #1e1b4b;
            margin-bottom: 20px;
        }

        .training-list {
            list-style: none;
        }

        .training-list li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            display: flex;
            justify-content: space-between;
        }

        /* 表单与需求匹配 */
        .contact-section-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .form-container {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-md);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 6px;
            font-weight: 500;
            font-size: 14px;
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            transition: border-color 0.2s;
        }

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

        .btn-submit {
            width: 100%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 12px;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: opacity 0.2s;
        }

        .btn-submit:hover {
            opacity: 0.9;
        }

        .contact-info-card {
            background: var(--bg-light);
            border-radius: 12px;
            padding: 30px;
            height: fit-content;
        }

        .kefu-qrcode {
            text-align: center;
            margin-top: 20px;
        }

        .kefu-qrcode img {
            max-width: 160px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
        }

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

        .review-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .review-user {
            font-weight: 600;
            margin-bottom: 5px;
            color: #1e1b4b;
        }

        .review-role {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

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

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

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

        .faq-header {
            width: 100%;
            background: none;
            border: none;
            padding: 16px 20px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: #1e1b4b;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-header::after {
            content: "+";
            font-size: 20px;
            color: var(--primary);
        }

        .faq-item.active .faq-header::after {
            content: "−";
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease-out;
            background-color: var(--bg-light);
        }

        .faq-content {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 自助排查 & 百科 */
        .help-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .help-card {
            background: white;
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 12px;
        }

        .help-card h3 {
            margin-bottom: 15px;
            color: #1e1b4b;
        }

        .help-list {
            list-style: none;
        }

        .help-list li {
            margin-bottom: 12px;
            font-size: 14px;
        }

        .help-list strong {
            color: var(--primary-dark);
        }

        /* 文章列表 */
        .article-card-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--bg-light);
            border-radius: 12px;
            padding: 20px;
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }

        .article-card:hover {
            transform: translateY(-3px);
        }

        .article-card h3 {
            font-size: 16px;
            margin-bottom: 10px;
        }

        .article-card a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 14px;
        }

        /* 浮动组件 & 页脚 */
        .floating-kefu {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            padding: 12px 20px;
            border-radius: 30px;
            box-shadow: var(--shadow-lg);
            text-decoration: none;
            font-weight: bold;
            font-size: 14px;
            z-index: 99;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        footer {
            background: #111827;
            color: #9ca3af;
            padding: 60px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo img {
            height: 40px;
            margin-bottom: 15px;
        }

        .footer-title {
            color: white;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
        }

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

        .footer-links a {
            color: #9ca3af;
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid #374151;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .friend-links a {
            color: #9ca3af;
            text-decoration: none;
            margin-right: 15px;
        }

        .friend-links a:hover {
            color: white;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .services-grid, .gallery-grid, .token-pricing-grid, .reviews-grid, .article-card-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: white;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: var(--shadow-md);
            }
            .nav-menu.active {
                display: flex;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .training-grid, .contact-section-grid, .help-grid {
                grid-template-columns: 1fr;
            }
            .services-grid, .gallery-grid, .token-pricing-grid, .reviews-grid, .article-card-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .floating-kefu {
                bottom: 20px;
                right: 20px;
                padding: 10px 16px;
                font-size: 12px;
            }
        }