/* 多彩涂鸦风格 CSS 系统 */
        :root {
            --primary: #ff5964;
            --secondary: #35a7ff;
            --accent: #ffe66d;
            --success: #38b000;
            --dark: #1e1e24;
            --light-bg: #faf8f5;
            --card-bg: #ffffff;
            --border-width: 3px;
            --graffiti-shadow: 5px 5px 0px var(--dark);
        }

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

        body {
            background-color: var(--light-bg);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
            font-size: 16px;
        }

        /* 统一外层居中容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 多彩涂鸦风格公用卡片 */
        .graffiti-card {
            background: var(--card-bg);
            border: var(--border-width) solid var(--dark);
            box-shadow: var(--graffiti-shadow);
            border-radius: 16px 4px 16px 4px;
            padding: 25px;
            transition: all 0.2s ease-in-out;
            position: relative;
            overflow: hidden;
        }

        .graffiti-card:hover {
            transform: translate(-4px, -4px);
            box-shadow: 9px 9px 0px var(--dark);
        }

        /* 彩色涂鸦标签 */
        .badge {
            display: inline-block;
            padding: 6px 12px;
            font-weight: 800;
            font-size: 0.85rem;
            text-transform: uppercase;
            border: 2px solid var(--dark);
            border-radius: 4px;
            background-color: var(--accent);
            color: var(--dark);
            transform: rotate(-1.5deg);
            margin-bottom: 12px;
        }

        .badge-alt {
            background-color: var(--secondary);
            color: #ffffff;
            transform: rotate(1deg);
        }

        /* 按钮设计 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            font-weight: 800;
            font-size: 1rem;
            text-decoration: none;
            color: var(--dark);
            background-color: var(--accent);
            border: var(--border-width) solid var(--dark);
            border-radius: 8px;
            box-shadow: 3px 3px 0px var(--dark);
            cursor: pointer;
            transition: all 0.1s ease;
        }

        .btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0px var(--dark);
        }

        .btn:active {
            transform: translate(1px, 1px);
            box-shadow: 2px 2px 0px var(--dark);
        }

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

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

        /* 标题排版 */
        h1, h2, h3, h4 {
            font-weight: 900;
            color: var(--dark);
            line-height: 1.2;
        }

        h2 {
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 40px;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }

        h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 10%;
            width: 80%;
            height: 8px;
            background: var(--accent);
            z-index: -1;
            transform: skewX(-15deg);
            border: 2px solid var(--dark);
        }

        /* 导航栏 */
        header {
            background: #ffffff;
            border-bottom: var(--border-width) solid var(--dark);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

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

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

        .ai-page-logo {
            max-height: 50px;
            width: auto;
        }

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

        .nav-menu a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.2s;
        }

        .nav-menu a:hover {
            background: var(--accent);
            transform: rotate(-1deg);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark);
        }

        /* 首屏 Hero 区域 (无图片) */
        .hero-section {
            background: linear-gradient(135deg, #fdf8e2 0%, #eef5fc 100%);
            padding: 80px 0 100px 0;
            border-bottom: var(--border-width) solid var(--dark);
            position: relative;
        }

        .hero-section::before {
            content: '★ AIGC ★';
            position: absolute;
            top: 30px;
            left: 5%;
            font-size: 1.2rem;
            font-weight: 900;
            color: rgba(30, 30, 38, 0.15);
            transform: rotate(-15deg);
        }

        .hero-section::after {
            content: 'ONE-STOP AI';
            position: absolute;
            bottom: 30px;
            right: 5%;
            font-size: 1.2rem;
            font-weight: 900;
            color: rgba(30, 30, 38, 0.15);
            transform: rotate(10deg);
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-h1 {
            font-size: 3rem;
            margin-bottom: 24px;
            color: var(--dark);
            line-height: 1.15;
            letter-spacing: -1px;
            text-shadow: 2px 2px 0px var(--accent);
        }

        .hero-sub {
            font-size: 1.25rem;
            color: #4a4a4a;
            margin-bottom: 35px;
            font-weight: 500;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: #ffffff;
            border: 2px solid var(--dark);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            box-shadow: 3px 3px 0px var(--dark);
        }

        .stat-num {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            font-weight: 700;
            color: #666;
        }

        /* Section 通用样式 */
        section {
            padding: 80px 0;
            border-bottom: var(--border-width) solid var(--dark);
        }

        /* 颜色交替背景 */
        .section-alt {
            background-color: #f0f7f6;
        }

        /* 关于我们 */
        .about-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .about-text p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            color: #333;
        }

        .about-img-container {
            border: var(--border-width) solid var(--dark);
            box-shadow: var(--graffiti-shadow);
            border-radius: 12px;
            overflow: hidden;
            background: #fff;
        }

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

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

        .service-card h3 {
            font-size: 1.4rem;
            margin: 15px 0 10px 0;
        }

        .service-features {
            list-style: none;
            margin-top: 15px;
        }

        .service-features li {
            position: relative;
            padding-left: 20px;
            font-size: 0.95rem;
            margin-bottom: 8px;
        }

        .service-features li::before {
            content: '✔';
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: bold;
        }

        /* 流程步骤 */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
            position: relative;
        }

        .step-card {
            text-align: center;
            padding-top: 40px;
        }

        .step-num {
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 50px;
            background: var(--accent);
            border: var(--border-width) solid var(--dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.5rem;
            box-shadow: 2px 2px 0px var(--dark);
        }

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

        /* 服务网络 & 技术标准 */
        .two-col-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

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

        .info-list li {
            padding: 15px;
            border-bottom: 2px solid var(--dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .info-list li:last-child {
            border-bottom: none;
        }

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

        .case-card {
            padding: 0;
        }

        .case-img-box {
            border-bottom: var(--border-width) solid var(--dark);
            height: 200px;
            background: #eaeaea;
            overflow: hidden;
        }

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

        .case-info {
            padding: 20px;
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: var(--border-width) solid var(--dark);
            box-shadow: var(--graffiti-shadow);
            border-radius: 12px;
            background: #fff;
        }

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

        th, td {
            padding: 15px 20px;
            border-bottom: 2px solid var(--dark);
            border-right: 2px solid var(--dark);
        }

        th:last-child, td:last-child {
            border-right: none;
        }

        th {
            background-color: var(--secondary);
            color: #fff;
            font-weight: 800;
        }

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

        .recommend-score {
            text-align: center;
            background: #fffbe6;
            padding: 20px;
            border: 3px solid var(--dark);
            border-radius: 8px;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 15px;
        }

        .score-box {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
        }

        /* 需求匹配表单 & 联系我们 */
        .form-contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
        }

        .styled-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group label {
            font-weight: 800;
            font-size: 0.95rem;
        }

        .form-control {
            padding: 12px;
            border: 2px solid var(--dark);
            border-radius: 6px;
            font-size: 1rem;
            background: #fff;
            transition: all 0.2s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 3px 3px 0px var(--dark);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        .contact-info-box {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .qrcode-card {
            text-align: center;
            background: #fff;
            padding: 20px;
            border: 2px solid var(--dark);
            border-radius: 8px;
        }

        .qrcode-card img {
            max-width: 150px;
            height: auto;
            border: 2px solid var(--dark);
            margin-bottom: 10px;
        }

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

        .token-card {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border: 2px solid var(--dark);
            background: #fff;
            padding: 15px 20px;
            border-radius: 8px;
            box-shadow: 3px 3px 0px var(--dark);
        }

        .token-price {
            font-weight: 800;
            color: var(--success);
        }

        /* 培训中心 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .training-card h3 {
            margin: 10px 0;
            font-size: 1.3rem;
        }

        /* 帮助中心 & FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            border: 2px solid var(--dark);
            border-radius: 8px;
            background: #fff;
            overflow: hidden;
            box-shadow: 3px 3px 0px var(--dark);
        }

        .faq-header {
            padding: 18px 20px;
            font-weight: 800;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fafafa;
            user-select: none;
        }

        .faq-header::after {
            content: '+';
            font-size: 1.5rem;
            transition: transform 0.2s;
        }

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

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease-out;
            padding: 0 20px;
            color: #555;
            font-size: 0.95rem;
        }

        .faq-item.active .faq-body {
            padding: 15px 20px 20px 20px;
            border-top: 2px solid var(--dark);
            max-height: 300px;
        }

        /* 百科词条 */
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 20px;
        }

        .glossary-card h4 {
            color: var(--primary);
            margin-bottom: 8px;
        }

        /* 用户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .comment-card {
            background: #fff;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px dashed var(--dark);
        }

        .user-info h5 {
            font-weight: 800;
            font-size: 0.95rem;
        }

        .user-info span {
            font-size: 0.8rem;
            color: #777;
        }

        /* 文章列表 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .article-card a {
            text-decoration: none;
            color: inherit;
        }

        .article-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .article-meta {
            font-size: 0.85rem;
            color: #888;
            margin-top: 15px;
            display: block;
        }

        /* 页脚与友情链接 */
        footer {
            background: var(--dark);
            color: #eceff1;
            padding: 60px 0 30px 0;
            border-top: var(--border-width) solid var(--dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 45px;
        }

        .footer-col h4 {
            color: var(--accent);
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 3px;
            background: var(--primary);
        }

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

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: #b0bec5;
            text-decoration: none;
            transition: color 0.2s;
            font-size: 0.9rem;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .friend-links {
            border-top: 1px solid #37474f;
            padding-top: 30px;
            margin-bottom: 30px;
        }

        .friend-links h4 {
            color: #b0bec5;
            font-size: 0.95rem;
            margin-bottom: 15px;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-list a {
            color: #90a4ae;
            text-decoration: none;
            font-size: 0.85rem;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #37474f;
            font-size: 0.85rem;
            color: #90a4ae;
        }

        .ai-page-home-link {
            color: var(--accent);
            font-weight: bold;
            text-decoration: underline;
        }

        /* 悬浮侧边栏 */
        .sticky-aside {
            position: fixed;
            right: 20px;
            bottom: 80px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
        }

        .aside-btn {
            width: 50px;
            height: 50px;
            border: 2px solid var(--dark);
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 2px 2px 0px var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s;
            position: relative;
        }

        .aside-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 4px 4px 0px var(--dark);
        }

        .aside-btn svg {
            width: 24px;
            height: 24px;
            fill: var(--dark);
        }

        /* 客服二维码悬浮浮层 */
        .aside-btn .qr-hover {
            display: none;
            position: absolute;
            right: 60px;
            bottom: 0;
            background: white;
            border: 2px solid var(--dark);
            padding: 15px;
            border-radius: 8px;
            box-shadow: var(--graffiti-shadow);
            text-align: center;
            width: 180px;
        }

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

        .aside-btn .qr-hover img {
            width: 100%;
            height: auto;
            margin-bottom: 5px;
        }

        .aside-btn .qr-hover p {
            font-size: 0.8rem;
            color: var(--dark);
            font-weight: 800;
        }

        /* 标签云组件 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }

        .tag-item {
            background: #fff;
            border: 2px solid var(--dark);
            padding: 6px 12px;
            font-size: 0.85rem;
            font-weight: 700;
            border-radius: 20px;
            box-shadow: 2px 2px 0px var(--dark);
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: var(--border-width) solid var(--dark);
                padding: 20px;
                gap: 15px;
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: block;
            }

            .about-layout, .two-col-layout, .form-contact-grid {
                grid-template-columns: 1fr;
            }

            .hero-h1 {
                font-size: 2.2rem;
            }
        }