:root {
            --primary: #00f0ff;
            --secondary: #ff007f;
            --accent: #ffeb3b;
            --dark: #0f172a;
            --light-bg: #f8fafc;
            --border-color: #0f172a;
            --card-bg: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        body {
            background-color: var(--light-bg);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* 撞色艳色风 UI 基础样式 */
        .btn-neo {
            display: inline-block;
            padding: 12px 28px;
            font-weight: 800;
            text-decoration: none;
            color: var(--dark);
            background-color: var(--primary);
            border: 3px solid var(--border-color);
            box-shadow: 4px 4px 0px var(--border-color);
            transition: all 0.2s ease;
            cursor: pointer;
            text-align: center;
        }

        .btn-neo:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--border-color);
        }

        .btn-neo-secondary {
            background-color: var(--secondary);
            color: #fff;
        }

        .btn-neo-accent {
            background-color: var(--accent);
            color: var(--dark);
        }

        .card-neo {
            background: var(--card-bg);
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
            padding: 24px;
            transition: all 0.2s ease;
        }

        .card-neo:hover {
            transform: translate(-2px, -2px);
            box-shadow: 8px 8px 0px var(--border-color);
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--dark);
            text-transform: uppercase;
            margin-bottom: 12px;
            text-align: center;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 8px;
            background: var(--accent);
            z-index: -1;
            border: 2px solid var(--border-color);
        }

        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 48px;
            font-size: 1.1rem;
        }

        section {
            padding: 80px 0;
            border-bottom: 3px solid var(--border-color);
        }

        /* 顶部导航 */
        header {
            background-color: #ffffff;
            border-bottom: 3px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

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

        .ai-page-logo {
            height: 45px;
            display: block;
        }

        .brand-name {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--dark);
        }

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

        .nav-menu a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 700;
            font-size: 0.95rem;
            transition: color 0.2s;
            padding: 6px 12px;
            border: 2px solid transparent;
        }

        .nav-menu a:hover {
            background-color: var(--primary);
            border: 2px solid var(--border-color);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Hero首屏 - 严禁出现任何图片 */
        .hero-section {
            background: linear-gradient(135deg, #e0f7fa 0%, #fff9c4 100%);
            padding: 100px 0 120px;
            position: relative;
            overflow: hidden;
        }

        .hero-grid {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .hero-badge {
            background-color: var(--secondary);
            color: #fff;
            padding: 6px 16px;
            font-weight: 800;
            font-size: 0.9rem;
            border: 2px solid var(--border-color);
            box-shadow: 2px 2px 0px var(--border-color);
            margin-bottom: 24px;
            display: inline-block;
            transform: rotate(-1deg);
        }

        .hero-title {
            font-size: 3.5rem;
            line-height: 1.2;
            font-weight: 900;
            color: var(--dark);
            margin-bottom: 24px;
            max-width: 900px;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-main);
            margin-bottom: 40px;
            max-width: 700px;
            font-weight: 500;
        }

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

        .hero-btn-main {
            font-size: 1.2rem;
            padding: 16px 36px;
        }

        .hero-features-strip {
            display: flex;
            gap: 30px;
            margin-top: 60px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .hero-feature-item {
            font-weight: 700;
            background: #fff;
            padding: 10px 20px;
            border: 2px solid var(--border-color);
            box-shadow: 3px 3px 0px var(--border-color);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 平台介绍 & 关于我们 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .intro-text h3 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        /* AIGC服务 & 支持模型 */
        .model-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
            gap: 15px;
            margin-top: 40px;
        }

        .model-badge {
            background: #fff;
            border: 2px solid var(--border-color);
            padding: 12px;
            text-align: center;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 3px 3px 0px var(--border-color);
            transition: all 0.2s;
        }

        .model-badge:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }

        /* 一站式制作场景 */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .scene-card {
            border-top: 8px solid var(--primary);
        }

        .scene-card:nth-child(2n) {
            border-top-color: var(--secondary);
        }

        /* 行业解决方案与服务网络 */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            margin-top: 30px;
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
        }

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

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            border: 1px solid #e2e8f0;
            font-weight: 700;
        }

        .comparison-table th {
            background-color: var(--dark);
            color: #fff;
        }

        .comparison-table tr:nth-child(even) {
            background-color: #f8fafc;
        }

        .highlight-col {
            background-color: rgba(0, 240, 255, 0.1);
            border-left: 3px solid var(--primary);
            border-right: 3px solid var(--primary);
        }

        /* Token 比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

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

        .training-card {
            background: #fff;
            border: 3px solid var(--border-color);
            padding: 20px;
            text-align: center;
            box-shadow: 4px 4px 0px var(--border-color);
        }

        /* 流程步骤 */
        .step-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            position: relative;
        }

        .step-item {
            text-align: center;
            padding: 20px;
            background: #fff;
            border: 2px solid var(--border-color);
            box-shadow: 4px 4px 0px var(--border-color);
        }

        .step-num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        /* 客户案例 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .case-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 3px solid var(--border-color);
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .review-card {
            border-left: 6px solid var(--secondary);
        }

        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 15px;
            font-weight: 700;
        }

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

        .faq-item {
            border: 3px solid var(--border-color);
            margin-bottom: 15px;
            background: #fff;
            box-shadow: 4px 4px 0px var(--border-color);
        }

        .faq-question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 800;
            background-color: #fff;
            transition: background 0.2s;
        }

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

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease-out;
            color: var(--text-muted);
            border-top: 0px solid var(--border-color);
        }

        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 500px;
            border-top: 3px solid var(--border-color);
        }

        .faq-icon::before {
            content: "+";
            font-size: 1.5rem;
            font-weight: 700;
        }

        .faq-item.active .faq-icon::before {
            content: "−";
        }

        /* 文章列表 */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .article-card {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h4 {
            font-size: 1.1rem;
            margin-bottom: 15px;
            font-weight: 800;
        }

        .article-card a {
            color: var(--secondary);
            font-weight: 700;
            text-decoration: none;
            display: inline-block;
            margin-top: auto;
        }

        /* 需求匹配与联系我们表单 */
        .form-section-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info-panel {
            background-color: var(--dark);
            color: #fff;
            padding: 40px;
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--border-color);
        }

        .contact-info-panel h3 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .info-item {
            margin-bottom: 25px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .info-item img {
            width: 120px;
            border: 3px solid #fff;
        }

        .form-panel {
            background: #fff;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 700;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 3px solid var(--border-color);
            font-weight: 600;
            outline: none;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 3px 3px 0px var(--border-color);
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: #fff;
            padding: 60px 0 20px;
            border-top: 3px solid var(--border-color);
        }

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

        .footer-logo img {
            height: 50px;
            margin-bottom: 15px;
        }

        .footer-links h4 {
            color: var(--primary);
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-transform: uppercase;
        }

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

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

        .footer-links ul li a {
            color: #cbd5e1;
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-links ul li a:hover {
            color: var(--primary);
        }

        .friend-links {
            border-top: 1px solid #334155;
            padding-top: 20px;
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.9rem;
        }

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

        .friend-links a:hover {
            color: var(--accent);
        }

        .copyright-area {
            text-align: center;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.85rem;
        }

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            bottom: 40px;
            right: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            background-color: var(--accent);
            border: 3px solid var(--border-color);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 4px 4px 0px var(--border-color);
            cursor: pointer;
            position: relative;
        }

        .float-btn img {
            width: 30px;
        }

        .qr-popup {
            position: absolute;
            bottom: 75px;
            right: 0;
            background: #fff;
            border: 3px solid var(--border-color);
            padding: 15px;
            box-shadow: 5px 5px 0px var(--border-color);
            display: none;
            width: 160px;
            text-align: center;
        }

        .qr-popup img {
            width: 100%;
            height: auto;
        }

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

        /* 响应式适配 */
        @media (max-width: 992px) {
            .intro-grid, .form-section-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 2.5rem;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: #fff;
                border-bottom: 3px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
        }