/* CSS Reset & Variable Base */
        :root {
            --bg-primary: #fbfbfd;
            --bg-secondary: #ffffff;
            --text-main: #111827;
            --text-muted: #4b5563;
            
            /* 撞色艳色风 核心配色 (Neubrutalism 风格) */
            --color-primary: #0052ff;   /* 电光蓝 */
            --color-accent: #ff007f;    /* 荧光粉 */
            --color-yellow: #ffe600;    /* 闪耀黄 */
            --color-dark: #000000;
            --border-width: 3px;
        }

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

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

        /* 统一外层居中容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 80px 0;
            border-bottom: var(--border-width) solid var(--color-dark);
            background-color: var(--bg-secondary);
        }

        section:nth-child(even) {
            background-color: var(--bg-primary);
        }

        /* Neubrutalism 风格卡片/按钮基础样式 */
        .brutal-card {
            background: var(--bg-secondary);
            border: var(--border-width) solid var(--color-dark);
            box-shadow: 6px 6px 0px var(--color-dark);
            padding: 24px;
            transition: all 0.2s ease;
            position: relative;
        }

        .brutal-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: 9px 9px 0px var(--color-dark);
        }

        .brutal-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 800;
            text-decoration: none;
            color: var(--color-dark);
            background: var(--color-yellow);
            border: var(--border-width) solid var(--color-dark);
            box-shadow: 4px 4px 0px var(--color-dark);
            cursor: pointer;
            transition: all 0.1s ease;
            font-size: 16px;
        }

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

        .brutal-btn:active {
            transform: translate(2px, 2px);
            box-shadow: 0px 0px 0px var(--color-dark);
        }

        .brutal-btn.accent {
            background: var(--color-accent);
            color: #fff;
        }

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

        /* 徽章标记 */
        .brutal-badge {
            display: inline-block;
            padding: 4px 12px;
            background: var(--color-dark);
            color: #fff;
            font-weight: 700;
            font-size: 12px;
            text-transform: uppercase;
            margin-bottom: 12px;
            border: 1px solid var(--color-dark);
        }
        
        .brutal-badge.yellow {
            background: var(--color-yellow);
            color: var(--color-dark);
        }

        /* Section 标题规范 */
        .section-header {
            margin-bottom: 50px;
            text-align: center;
        }

        .section-title {
            font-size: 36px;
            font-weight: 900;
            color: var(--color-dark);
            display: inline-block;
            position: relative;
            z-index: 1;
            padding: 0 8px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 12px;
            background: var(--color-yellow);
            z-index: -1;
            transform: rotate(-1deg);
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin-top: 12px;
            font-weight: 600;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-secondary);
            border-bottom: var(--border-width) solid var(--color-dark);
            padding: 16px 0;
        }

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

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

        .ai-page-logo {
            height: 40px;
            display: block;
        }

        .brand-name {
            font-size: 22px;
            font-weight: 900;
            color: var(--color-dark);
            text-decoration: none;
        }

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

        .nav-link {
            text-decoration: none;
            color: var(--color-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 6px 12px;
            border: 2px solid transparent;
            transition: all 0.2s ease;
        }

        .nav-link:hover {
            border: 2px solid var(--color-dark);
            background: var(--color-yellow);
            box-shadow: 3px 3px 0 var(--color-dark);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: var(--border-width) solid var(--color-dark);
            padding: 6px 12px;
            font-weight: 900;
            cursor: pointer;
        }

        /* Hero 首屏 - 无任何图片 */
        .hero-section {
            background: linear-gradient(135deg, #fff7ed 0%, #eff6ff 100%);
            padding: 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-decor-1 {
            position: absolute;
            top: 10%;
            left: 5%;
            width: 80px;
            height: 80px;
            border: var(--border-width) solid var(--color-dark);
            background: var(--color-accent);
            transform: rotate(15deg);
            z-index: 0;
            opacity: 0.8;
        }

        .hero-decor-2 {
            position: absolute;
            bottom: 15%;
            right: 5%;
            width: 100px;
            height: 100px;
            border: var(--border-width) solid var(--color-dark);
            background: var(--color-yellow);
            transform: rotate(-10deg);
            z-index: 0;
            opacity: 0.8;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 850px;
            margin: 0 auto;
        }

        .hero-h1 {
            font-size: 44px;
            font-weight: 950;
            color: var(--color-dark);
            line-height: 1.2;
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero-h1 span {
            background: var(--color-yellow);
            padding: 2px 10px;
            border: var(--border-width) solid var(--color-dark);
            display: inline-block;
            box-shadow: 4px 4px 0 var(--color-dark);
            transform: rotate(-1deg);
        }

        .hero-p {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
            font-weight: 600;
        }

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

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1-fraction);
            gap: 20px;
            margin-top: -50px;
            position: relative;
            z-index: 3;
        }
        
        .stats-grid {
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        }

        .stat-item {
            text-align: center;
            background: var(--color-yellow);
        }

        .stat-num {
            font-size: 40px;
            font-weight: 900;
            color: var(--color-dark);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-muted);
        }

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

        .about-text h3 {
            font-size: 28px;
            font-weight: 900;
            margin-bottom: 20px;
        }

        .about-features {
            margin-top: 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .about-feat-card {
            border: 2px solid var(--color-dark);
            padding: 16px;
            background: #fff;
        }

        .about-feat-title {
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 6px;
        }

        /* 全平台AIGC服务 & 模型聚合 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .srv-icon {
            font-size: 32px;
            margin-bottom: 16px;
        }

        .model-tags-container {
            margin-top: 40px;
            padding: 30px;
            background: #eff6ff;
            border: var(--border-width) solid var(--color-dark);
            box-shadow: 6px 6px 0 var(--color-dark);
        }

        .model-tags-title {
            font-size: 20px;
            font-weight: 900;
            margin-bottom: 20px;
            color: var(--color-primary);
            text-align: center;
        }

        .model-tags-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .model-tag {
            background: #fff;
            border: 2px solid var(--color-dark);
            padding: 6px 14px;
            font-weight: 700;
            font-size: 13px;
            box-shadow: 2px 2px 0 var(--color-dark);
        }

        /* 一站式AIGC制作 & 解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

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

        .sol-features {
            list-style: none;
            margin: 20px 0;
        }

        .sol-features li {
            margin-bottom: 8px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sol-features li::before {
            content: "✔";
            color: var(--color-accent);
            font-weight: 900;
        }

        /* 全国服务网络 & 步骤流程 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            position: relative;
        }

        .process-step {
            text-align: center;
            background: #fff;
            padding: 30px 20px;
        }

        .step-num {
            width: 50px;
            height: 50px;
            background: var(--color-accent);
            color: #fff;
            border: var(--border-width) solid var(--color-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: 900;
            margin: 0 auto 20px auto;
            box-shadow: 3px 3px 0 var(--color-dark);
        }

        /* 客户案例中心 - 含规定图片渲染 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-img-container {
            border: var(--border-width) solid var(--color-dark);
            margin-bottom: 16px;
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* 对比评测 - 表格设计 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: var(--border-width) solid var(--color-dark);
            box-shadow: 6px 6px 0 var(--color-dark);
        }

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

        .compare-table th, .compare-table td {
            padding: 16px;
            border: 2px solid var(--color-dark);
            font-weight: 700;
        }

        .compare-table th {
            background: var(--color-yellow);
            color: var(--color-dark);
        }

        .compare-table tr:nth-child(even) {
            background: #fafafa;
        }

        .badge-score {
            background: var(--color-accent);
            color: #fff;
            padding: 4px 10px;
            font-size: 14px;
            font-weight: 900;
            display: inline-block;
            border: 1px solid var(--color-dark);
        }

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

        .price-card {
            border: var(--border-width) solid var(--color-dark);
            background: #fff;
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .price-header {
            border-bottom: 2px solid var(--color-dark);
            padding-bottom: 12px;
            margin-bottom: 16px;
        }

        .price-val {
            font-size: 28px;
            font-weight: 900;
            color: var(--color-accent);
        }

        /* 智能需求匹配 - 表单提交 */
        .form-section {
            background: #fff7ed;
        }

        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
        }

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

        .form-label {
            display: block;
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--color-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: var(--border-width) solid var(--color-dark);
            background: #fff;
            font-size: 16px;
            font-weight: 600;
            box-shadow: 3px 3px 0 var(--color-dark);
            outline: none;
        }

        .form-control:focus {
            background: #fdfefe;
            box-shadow: 4px 4px 0 var(--color-primary);
        }

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            border: var(--border-width) solid var(--color-dark);
            background: #fff;
            box-shadow: 4px 4px 0 var(--color-dark);
        }

        .faq-question {
            padding: 20px;
            font-weight: 800;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fff;
            user-select: none;
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s cubic-bezier(0,1,0,1);
            font-weight: 600;
            color: var(--text-muted);
            font-size: 14px;
        }

        .faq-item.active .faq-answer {
            padding: 0 20px 20px 20px;
            max-height: 1000px;
            border-top: 2px solid var(--color-dark);
        }

        .faq-icon::before {
            content: "+";
            font-size: 22px;
            font-weight: 900;
        }

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

        /* 客户评论卡片 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .user-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 20px;
            border-top: 2px solid var(--color-dark);
            padding-top: 16px;
        }

        .user-avatar {
            width: 48px;
            height: 48px;
            background: var(--color-yellow);
            border: 2px solid var(--color-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
        }

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

        .news-link {
            text-decoration: none;
            color: var(--color-dark);
            display: block;
        }

        .news-link:hover h4 {
            color: var(--color-primary);
        }

        /* 联系我们 & 加盟代理 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .qr-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .qr-card img {
            width: 180px;
            height: 180px;
            border: var(--border-width) solid var(--color-dark);
            box-shadow: 4px 4px 0 var(--color-dark);
            margin-bottom: 16px;
        }

        /* 页脚 */
        footer {
            background: #111827;
            color: #f3f4f6;
            padding: 60px 0 30px 0;
            border-top: var(--border-width) solid var(--color-dark);
        }

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

        .footer-logo-area img {
            height: 45px;
            margin-bottom: 16px;
            
        }

        .footer-links-title {
            font-size: 16px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-links-title::after {
            content: '';
            display: block;
            width: 40px;
            height: 3px;
            background: var(--color-accent);
            margin-top: 6px;
        }

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

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

        .footer-links a {
            color: #9ca3af;
            text-decoration: none;
            font-weight: 600;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--color-yellow);
        }

        .friend-links-area {
            border-top: 1px solid #374151;
            padding-top: 24px;
            margin-top: 20px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links a {
            color: #9ca3af;
            text-decoration: none;
            font-size: 13px;
            font-weight: 600;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #374151;
            font-size: 13px;
            color: #6b7280;
            font-weight: 600;
        }

        /* 浮动客服入口 */
        .floating-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 56px;
            height: 56px;
            background: var(--color-yellow);
            border: var(--border-width) solid var(--color-dark);
            box-shadow: 4px 4px 0 var(--color-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 12px;
            text-align: center;
            cursor: pointer;
            text-decoration: none;
            color: var(--color-dark);
            transition: all 0.1s ease;
        }

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

        /* 浮动二维码展示 */
        .float-qr-container {
            position: relative;
        }

        .float-qr-pop {
            position: absolute;
            bottom: 70px;
            right: 0;
            background: #fff;
            border: var(--border-width) solid var(--color-dark);
            box-shadow: 6px 6px 0 var(--color-dark);
            padding: 12px;
            display: none;
            flex-direction: column;
            align-items: center;
            width: 150px;
        }

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

        .float-qr-container:hover .float-qr-pop {
            display: flex;
        }

        /* 响应式媒体查询 */
        @media (max-width: 768px) {
            .nav-links-wrapper {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                border-bottom: var(--border-width) solid var(--color-dark);
                padding: 20px;
                gap: 16px;
            }

            .nav-links-wrapper.active {
                display: flex;
            }

            .mobile-menu-btn {
                display: block;
            }

            .about-grid, .contact-grid {
                grid-template-columns: 1fr;
            }

            .hero-h1 {
                font-size: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }