/* 多彩涂鸦风格 CSS 核心规范 */
        :root {
            --color-bg: #fcfbf7;
            --color-text: #1a1a1a;
            --color-text-muted: #555555;
            --color-primary: #ffd166;
            --color-secondary: #06d6a0;
            --color-accent1: #ff6b6b;
            --color-accent2: #118ab2;
            --color-white: #ffffff;
            --border-width: 3px;
            --border-color: #1a1a1a;
            --shadow-offset: 6px;
        }

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

        body {
            background-color: var(--color-bg);
            color: var(--color-text);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            padding: 0;
            overflow-x: hidden;
        }

        /* 全局通用布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 多彩涂鸦风硬核卡片 */
        .doodle-card {
            background-color: var(--color-white);
            border: var(--border-width) solid var(--border-color);
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--border-color);
            border-radius: 12px;
            padding: 24px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            position: relative;
            overflow: hidden;
        }

        .doodle-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: calc(var(--shadow-offset) + 3px) calc(var(--shadow-offset) + 3px) 0px var(--border-color);
        }

        /* 多彩涂鸦风按钮 */
        .doodle-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 800;
            font-size: 1rem;
            color: var(--color-text);
            text-decoration: none;
            background-color: var(--color-primary);
            border: var(--border-width) solid var(--border-color);
            box-shadow: 4px 4px 0px var(--border-color);
            border-radius: 8px;
            cursor: pointer;
            transition: transform 0.1s, box-shadow 0.1s;
        }

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

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

        .doodle-btn.accent-btn {
            background-color: var(--color-accent1);
            color: var(--color-white);
        }

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

        /* 标题强化装饰 */
        .section-title {
            font-size: 2.2rem;
            font-weight: 900;
            text-align: center;
            margin-bottom: 40px;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 12px;
            background-color: var(--color-primary);
            z-index: -1;
            transform: skewX(-15deg);
        }

        .section-desc {
            text-align: center;
            color: var(--color-text-muted);
            max-width: 700px;
            margin: -25px auto 50px auto;
            font-size: 1.1rem;
        }

        /* 头部导航区 */
        header {
            background-color: var(--color-white);
            border-bottom: var(--border-width) solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 12px 0;
        }

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

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

        .ai-page-logo {
            height: 48px;
            width: auto;
        }

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

        .nav-links a {
            text-decoration: none;
            color: var(--color-text);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 6px 12px;
            border-radius: 6px;
            transition: background 0.2s;
        }

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

        .mobile-menu-btn {
            display: none;
            font-size: 24px;
            background: none;
            border: none;
            cursor: pointer;
        }

        /* 统一的 Section 间距 */
        section {
            padding: 80px 0;
            border-bottom: var(--border-width) dashed var(--border-color);
        }

        /* 首屏 Hero 区 */
        .hero-section {
            background: linear-gradient(135deg, #fff3d1 0%, #ffeef3 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 100px 0;
        }

        .hero-badge {
            display: inline-block;
            background-color: var(--color-accent1);
            color: var(--color-white);
            font-weight: 800;
            padding: 6px 16px;
            border: var(--border-width) solid var(--border-color);
            border-radius: 30px;
            margin-bottom: 24px;
            transform: rotate(-2deg);
        }

        .hero-title-h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--color-text);
            margin-bottom: 24px;
        }

        .hero-desc {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 40px auto;
            color: var(--color-text-muted);
        }

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

        .hero-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 60px;
        }

        .hero-feat-card {
            background: var(--color-white);
            border: 2px solid var(--border-color);
            padding: 20px;
            border-radius: 8px;
            font-weight: 700;
            box-shadow: 4px 4px 0px var(--border-color);
        }

        .hero-feat-card .num {
            font-size: 2rem;
            color: var(--color-accent1);
            display: block;
            margin-bottom: 5px;
        }

        /* 统一模型标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 20px;
        }

        .tag-item {
            background-color: var(--color-white);
            border: 2px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 700;
            box-shadow: 2px 2px 0 var(--border-color);
        }

        /* 三栏/四栏服务卡片 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .card-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
            display: inline-block;
        }

        /* 流程步骤 */
        .step-timeline {
            display: flex;
            flex-direction: column;
            gap: 30px;
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .step-item {
            display: flex;
            gap: 20px;
            background: var(--color-white);
            border: var(--border-width) solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: 5px 5px 0 var(--border-color);
        }

        .step-num {
            background-color: var(--color-accent1);
            color: var(--color-white);
            width: 48px;
            height: 48px;
            border-radius: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.5rem;
            border: 3px solid var(--border-color);
            flex-shrink: 0;
        }

        /* 表格响应式 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: var(--border-width) solid var(--border-color);
            border-radius: 12px;
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-color);
            background-color: var(--color-white);
        }

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

        th, td {
            padding: 16px 20px;
            border-bottom: 2px solid var(--border-color);
            font-weight: 700;
        }

        th {
            background-color: var(--color-primary);
            color: var(--color-text);
        }

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

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

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

        .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 800;
            background-color: #fff;
            user-select: none;
        }

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease;
            background-color: #fbfbfb;
            border-top: 0 solid var(--border-color);
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 18px 24px;
            border-top: 2px solid var(--border-color);
        }

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

        .review-card {
            background-color: var(--color-white);
            border: 2px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: 4px 4px 0 var(--border-color);
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            border: 2px solid var(--border-color);
            background-color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
        }

        .user-meta h4 {
            font-size: 1rem;
            font-weight: 800;
        }

        .user-meta span {
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        /* 需求匹配与表单 */
        .form-section {
            background-color: #e8f7f5;
        }

        .interactive-matcher {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .form-wrapper {
            background: var(--color-white);
            border: var(--border-width) solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-color);
        }

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

        .form-group label {
            display: block;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            font-size: 1rem;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            outline: none;
            background: #fafafa;
        }

        .form-control:focus {
            background: #fff;
            box-shadow: 0 0 0 3px rgba(6, 214, 160, 0.2);
        }

        /* 地图/服务网络卡片样式 */
        .network-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        /* 图片与图集布局 */
        .gallery-section {
            background-color: #fff9f5;
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .gallery-card {
            border: var(--border-width) solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 5px 5px 0 var(--border-color);
            background: var(--color-white);
        }

        .gallery-card img {
            width: 100%;
            display: block;
            object-fit: cover;
            border-bottom: 2px solid var(--border-color);
        }

        .gallery-info {
            padding: 15px;
        }

        .gallery-info h4 {
            font-weight: 800;
            margin-bottom: 5px;
        }

        /* 资讯与友情链接 */
        .articles-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .articles-list li {
            border: 2px solid var(--border-color);
            border-radius: 8px;
            padding: 15px;
            background-color: var(--color-white);
            box-shadow: 3px 3px 0 var(--border-color);
        }

        .articles-list a {
            color: var(--color-accent2);
            text-decoration: none;
            font-weight: 700;
        }

        .articles-list a:hover {
            text-decoration: underline;
        }

        /* 浮动工具栏 */
        .floating-service {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .floating-item {
            background-color: var(--color-white);
            border: var(--border-width) solid var(--border-color);
            box-shadow: 4px 4px 0 var(--border-color);
            padding: 12px;
            border-radius: 50%;
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: all 0.2s;
        }

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

        .floating-item svg {
            width: 28px;
            height: 28px;
        }

        .qr-popover {
            position: absolute;
            bottom: 70px;
            right: 0;
            background-color: var(--color-white);
            border: 3px solid var(--border-color);
            border-radius: 12px;
            padding: 15px;
            box-shadow: 5px 5px 0 var(--border-color);
            display: none;
            width: 200px;
            text-align: center;
        }

        .qr-popover img {
            width: 100%;
            height: auto;
            border-radius: 6px;
        }

        .floating-item:hover .qr-popover {
            display: block;
        }

        /* 友情链接与底部 */
        .friendship-links {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 2px dashed var(--border-color);
        }

        .friendship-links a {
            display: inline-block;
            margin-right: 15px;
            color: var(--color-text-muted);
            text-decoration: none;
            font-weight: 700;
        }

        .friendship-links a:hover {
            color: var(--color-accent1);
        }

        footer {
            background-color: var(--color-white);
            border-top: var(--border-width) solid var(--border-color);
            padding: 60px 0 30px 0;
        }

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

        .footer-col h4 {
            font-weight: 900;
            margin-bottom: 20px;
            position: relative;
            display: inline-block;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 6px;
            background-color: var(--color-secondary);
            z-index: -1;
        }

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

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

        .footer-col ul li a {
            color: var(--color-text-muted);
            text-decoration: none;
            font-weight: 700;
            transition: color 0.2s;
        }

        .footer-col ul li a:hover {
            color: var(--color-accent2);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 2px solid var(--border-color);
            color: var(--color-text-muted);
            font-size: 0.9rem;
            font-weight: 700;
        }

        /* 移动端菜单激活样式 */
        .nav-links.active {
            display: flex;
            flex-direction: column;
            position: absolute;
            top: 73px;
            left: 0;
            right: 0;
            background-color: var(--color-white);
            border-bottom: var(--border-width) solid var(--border-color);
            padding: 20px;
            gap: 15px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }

            .nav-links {
                display: none;
            }

            .hero-title-h1 {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: 1.1rem;
            }

            .interactive-matcher {
                grid-template-columns: 1fr;
            }

            section {
                padding: 50px 0;
            }
        }