/* Neo-brutalism & 多彩涂鸦风格基础设定 */
        :root {
            --bg-color: #fbfbf8;
            --text-dark: #121212;
            --primary: #ffd000;      /* 醒目黄 */
            --secondary: #00e5ff;    /* 电光蓝 */
            --accent: #ff4081;       /* 活力粉 */
            --green-light: #2ecc71;  /* 亮绿色 */
            --border-width: 3px;
            --card-shadow: 6px 6px 0px #121212;
            --btn-shadow: 4px 4px 0px #121212;
        }

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

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

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

        /* 涂鸦风粗边框组件定义 */
        .brutal-border {
            border: var(--border-width) solid var(--text-dark);
        }

        .brutal-card {
            background: #ffffff;
            border: var(--border-width) solid var(--text-dark);
            box-shadow: var(--card-shadow);
            border-radius: 12px;
            padding: 30px;
            transition: all 0.2s ease;
        }

        .brutal-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: 9px 9px 0px #121212;
        }

        .brutal-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 800;
            font-size: 16px;
            text-decoration: none;
            color: var(--text-dark);
            background-color: var(--primary);
            border: var(--border-width) solid var(--text-dark);
            box-shadow: var(--btn-shadow);
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.15s ease;
        }

        .brutal-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px #121212;
        }

        .brutal-btn:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px #121212;
        }

        /* 头部导航 */
        header {
            background-color: var(--bg-color);
            border-bottom: var(--border-width) solid var(--text-dark);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }

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

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

        .logo-area img {
            height: 48px;
            display: block;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 900;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 6px 12px;
            border-radius: 6px;
            transition: background 0.2s;
        }

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

        .nav-toggle {
            display: none;
            font-size: 28px;
            background: none;
            border: none;
            cursor: pointer;
        }

        /* 顶部通告条 */
        .promo-banner {
            background: var(--accent);
            color: #fff;
            text-align: center;
            font-weight: 700;
            padding: 8px;
            border-bottom: var(--border-width) solid var(--text-dark);
            font-size: 14px;
        }

        /* 首屏 Hero - 无图片，纯文字与科技排版 */
        .hero-section {
            background: radial-gradient(circle at 10% 20%, rgba(255, 208, 0, 0.15) 0%, rgba(255, 64, 129, 0.1) 90.2%);
            padding: 80px 0;
            border-bottom: var(--border-width) solid var(--text-dark);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: "✦ AIGC ✦";
            position: absolute;
            top: 20px;
            right: -20px;
            font-size: 8rem;
            font-weight: 900;
            color: rgba(18, 18, 18, 0.03);
            transform: rotate(-15deg);
            pointer-events: none;
        }

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

        .hero-badge {
            background: var(--secondary);
            color: var(--text-dark);
            display: inline-block;
            padding: 6px 16px;
            font-weight: 800;
            border: var(--border-width) solid var(--text-dark);
            border-radius: 30px;
            margin-bottom: 24px;
            box-shadow: 3px 3px 0px #121212;
            transform: rotate(-1.5deg);
        }

        h1.hero-title {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--text-dark);
            text-shadow: 2px 2px 0px var(--secondary);
        }

        .hero-desc {
            font-size: 1.25rem;
            margin-bottom: 36px;
            font-weight: 500;
            color: #444;
        }

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

        /* 数据指标卡片 */
        .stats-section {
            padding: 40px 0;
            background: #fff;
            border-bottom: var(--border-width) solid var(--text-dark);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .stat-item {
            text-align: center;
            padding: 20px;
            background: var(--bg-color);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 15px;
            font-weight: 700;
            color: #666;
        }

        /* 通用标题设计 */
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 900;
            display: inline-block;
            background: var(--primary);
            padding: 8px 24px;
            border: var(--border-width) solid var(--text-dark);
            border-radius: 8px;
            box-shadow: 4px 4px 0px #121212;
            transform: rotate(-1deg);
        }

        .section-header p {
            margin-top: 20px;
            font-size: 1.1rem;
            color: #555;
            font-weight: 500;
        }

        /* 主要卡片网格布局 */
        .section-padding {
            padding: 80px 0;
            border-bottom: var(--border-width) solid var(--text-dark);
        }

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

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

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .service-card h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .service-card p {
            color: #555;
            font-size: 14px;
            margin-bottom: 20px;
        }

        /* 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }

        .tag-cloud span {
            background: var(--bg-color);
            border: 1px solid var(--text-dark);
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 4px;
        }

        /* 关于我们与平台介绍 */
        .intro-section {
            background: #fff;
        }

        .intro-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-text h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .intro-text p {
            font-size: 16px;
            color: #555;
            margin-bottom: 15px;
        }

        /* 流程步骤 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 50px;
            height: 50px;
            background: var(--accent);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 900;
            margin: 0 auto 15px;
            border: var(--border-width) solid var(--text-dark);
            box-shadow: 3px 3px 0px #121212;
        }

        .process-step h4 {
            font-weight: 800;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13px;
            color: #666;
        }

        /* 案例展示 (含图片资源) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .case-img-container {
            border-bottom: var(--border-width) solid var(--text-dark);
            background: #eee;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 20px;
        }

        .case-badge {
            display: inline-block;
            background: var(--secondary);
            font-size: 12px;
            font-weight: 700;
            padding: 2px 8px;
            border: 1px solid var(--text-dark);
            border-radius: 4px;
            margin-bottom: 10px;
        }

        /* 对比评测表格样式 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            margin: 30px 0;
            border: var(--border-width) solid var(--text-dark);
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            background: white;
        }

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

        th, td {
            padding: 16px 20px;
            border-bottom: 2px solid var(--text-dark);
            font-weight: 600;
        }

        th {
            background-color: var(--primary);
            color: var(--text-dark);
            font-weight: 800;
        }

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

        .highlight-col {
            background: rgba(0, 229, 255, 0.1);
        }

        .rating-badge {
            background: var(--accent);
            color: #fff;
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 14px;
            border: 1px solid var(--text-dark);
        }

        /* 智能需求匹配与加盟表单 */
        .form-section {
            background: var(--primary);
            position: relative;
        }

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

        .brutal-form {
            background: #fff;
            border: var(--border-width) solid var(--text-dark);
            box-shadow: 8px 8px 0px #121212;
            padding: 40px;
            border-radius: 12px;
        }

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

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

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 12px;
            border: var(--border-width) solid var(--text-dark);
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            background: var(--bg-color);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            background: #fff;
            box-shadow: 3px 3px 0 var(--secondary);
        }

        /* 常见用户问题 FAQ */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            margin-bottom: 15px;
            border: var(--border-width) solid var(--text-dark);
            border-radius: 8px;
            background: white;
            box-shadow: 4px 4px 0 #121212;
            overflow: hidden;
        }

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

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

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            color: #555;
            font-size: 15px;
            border-top: 0 solid var(--text-dark);
        }

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

        .faq-icon::before {
            content: '✚';
            font-size: 16px;
        }

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

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

        .comment-card {
            border: var(--border-width) solid var(--text-dark);
            border-radius: 8px;
            padding: 24px;
            box-shadow: 4px 4px 0 #121212;
            background: #fff;
        }

        .comment-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }

        .comment-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 18px;
            border: 2px solid var(--text-dark);
        }

        .comment-meta h4 {
            font-size: 15px;
            font-weight: 800;
        }

        .comment-meta span {
            font-size: 12px;
            color: #666;
        }

        .comment-body {
            font-size: 14px;
            color: #444;
            line-height: 1.5;
        }

        /* 资讯 / 知识库列表 */
        .articles-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .article-link-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px;
            border-bottom: 2px dashed var(--text-dark);
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 700;
            transition: all 0.2s;
        }

        .article-link-item:hover {
            background-color: var(--secondary);
            padding-left: 24px;
        }

        /* 侧边浮动工具栏 */
        .float-toolbar {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 54px;
            height: 54px;
            background: white;
            border: var(--border-width) solid var(--text-dark);
            border-radius: 50%;
            box-shadow: var(--btn-shadow);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: all 0.2s;
        }

        .float-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px #121212;
            background: var(--primary);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
        }

        .qr-popup {
            position: absolute;
            right: 70px;
            bottom: 0;
            background: white;
            border: var(--border-width) solid var(--text-dark);
            border-radius: 8px;
            padding: 15px;
            box-shadow: var(--card-shadow);
            display: none;
            text-align: center;
            width: 180px;
        }

        .qr-popup img {
            width: 100%;
            height: auto;
            border-radius: 4px;
            margin-bottom: 8px;
        }

        .qr-popup p {
            font-size: 12px;
            font-weight: 800;
        }

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

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

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

        .footer-col h4 {
            color: var(--primary);
            font-size: 16px;
            font-weight: 800;
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .footer-col p, .footer-col ul {
            font-size: 14px;
            color: #ccc;
            list-style: none;
        }

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

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

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

        .footer-qr {
            width: 120px;
            height: auto;
            border: 2px solid white;
            margin-top: 10px;
        }

        .footer-bottom {
            border-top: 1px solid #333;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 13px;
            color: #999;
        }

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

        .friend-links a {
            color: #999;
            text-decoration: none;
        }

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

        /* 响应式调整 */
        @media (max-width: 992px) {
            .intro-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            nav {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background: var(--bg-color);
                border-bottom: var(--border-width) solid var(--text-dark);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
            }

            nav.show {
                display: flex;
            }

            .nav-toggle {
                display: block;
            }

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

            .section-header h2 {
                font-size: 1.8rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }