/* 变量定义与主题配色（撞色艳色风 - 浅色底，利用高饱和荧光色和黑/白产生强烈视觉对比） */
        :root {
            --primary: #7000ff; /* 极光紫 */
            --secondary: #ff0055; /* 霓虹粉 */
            --accent: #00f0ff; /* 电光蓝 */
            --dark: #0f172a; /* 深蓝黑 */
            --light: #ffffff; /* 纯白 */
            --bg-gray: #f8fafc; /* 极浅灰 */
            --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-gray);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* 艳色撞色风格通用按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-weight: 800;
            font-size: 16px;
            text-decoration: none;
            text-transform: uppercase;
            border: var(--border-width) solid var(--dark);
            border-radius: 0px;
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: 4px 4px 0px var(--dark);
            position: relative;
        }
        .btn-primary {
            background-color: var(--accent);
            color: var(--dark);
        }
        .btn-primary:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--dark);
            background-color: #00d2e0;
        }
        .btn-secondary {
            background-color: var(--secondary);
            color: var(--light);
        }
        .btn-secondary:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--dark);
            background-color: #e0004c;
        }
        .btn:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--dark);
        }

        /* 统一标题样式 */
        .section-title {
            font-size: 32px;
            font-weight: 900;
            text-align: center;
            margin-bottom: 50px;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
            color: var(--dark);
            padding: 5px 15px;
            border: var(--border-width) solid var(--dark);
            background-color: var(--light);
            box-shadow: 5px 5px 0px var(--secondary);
        }

        /* 头部导航 */
        header {
            background-color: var(--light);
            border-bottom: var(--border-width) solid var(--dark);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
        }
        .ai-page-logo {
            height: 45px;
            width: auto;
        }
        nav {
            display: flex;
            gap: 20px;
        }
        nav a, .ai-page-home-link {
            font-weight: 700;
            color: var(--dark);
            text-decoration: none;
            font-size: 14px;
            padding: 5px 10px;
            border: 2px solid transparent;
            transition: all 0.2s;
        }
        nav a:hover, .ai-page-home-link:hover {
            border: 2px solid var(--dark);
            background-color: var(--accent);
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
        }

        /* Hero首屏 - 严禁出现任何图片 */
        .hero {
            background: linear-gradient(135deg, #f0f4ff 0%, #ffeaf0 100%);
            border-bottom: var(--border-width) solid var(--dark);
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 10px;
            left: 10px;
            width: 30px;
            height: 30px;
            background-color: var(--secondary);
            border: 2px solid var(--dark);
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 20px;
            right: 20px;
            width: 40px;
            height: 40px;
            background-color: var(--accent);
            border: 2px solid var(--dark);
            border-radius: 50%;
        }
        .hero-badge {
            background-color: var(--dark);
            color: var(--accent);
            display: inline-block;
            padding: 6px 16px;
            font-weight: 800;
            margin-bottom: 20px;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
            transform: rotate(-1deg);
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 900;
            color: var(--dark);
            line-height: 1.2;
            margin-bottom: 20px;
        }
        .hero h1 span {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }
        .hero-desc {
            font-size: 18px;
            max-width: 750px;
            margin: 0 auto 35px auto;
            color: #475569;
            font-weight: 500;
        }
        .hero-btns {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* 通用卡片容器与栅格 */
        .section-padding {
            padding: 80px 0;
            border-bottom: var(--border-width) solid var(--dark);
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
            gap: 40px;
        }

        /* 卡片统一样式 - 撞色边缘与阴影 */
        .card {
            background-color: var(--light);
            border: var(--border-width) solid var(--dark);
            padding: 30px;
            box-shadow: 6px 6px 0px var(--dark);
            transition: all 0.2s ease;
            position: relative;
        }
        .card:hover {
            transform: translate(-4px, -4px);
            box-shadow: 10px 10px 0px var(--primary);
        }

        /* 关于我们 */
        .about-box {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .highlight-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            border-left: 5px solid var(--secondary);
            padding-left: 15px;
        }

        /* 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-color: var(--light);
            border: var(--border-width) solid var(--dark);
            padding: 20px;
            text-align: center;
            box-shadow: 4px 4px 0px var(--accent);
        }
        .stat-num {
            font-size: 40px;
            font-weight: 900;
            color: var(--secondary);
            margin-bottom: 5px;
        }
        .stat-label {
            font-weight: 700;
            color: var(--dark);
        }

        /* 平台与服务能力标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 30px;
        }
        .tag-item {
            background-color: var(--light);
            border: 2px solid var(--dark);
            padding: 6px 15px;
            font-weight: 700;
            font-size: 14px;
            box-shadow: 2px 2px 0px var(--dark);
        }
        .tag-item.hot {
            background-color: var(--secondary);
            color: var(--light);
        }
        .tag-item.new {
            background-color: var(--accent);
            color: var(--dark);
        }

        /* 流程步骤 */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            position: relative;
        }
        .step-card {
            background-color: var(--light);
            border: var(--border-width) solid var(--dark);
            padding: 25px;
            position: relative;
            box-shadow: 4px 4px 0px var(--dark);
        }
        .step-num {
            position: absolute;
            top: -20px;
            left: 20px;
            background-color: var(--primary);
            color: var(--light);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 18px;
            border: 2px solid var(--dark);
        }
        .step-card h3 {
            margin-top: 15px;
            margin-bottom: 10px;
            font-size: 18px;
        }

        /* 对比表格 */
        .table-responsive {
            overflow-x: auto;
            border: var(--border-width) solid var(--dark);
            box-shadow: 8px 8px 0px var(--dark);
            background-color: var(--light);
            margin-top: 30px;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }
        th, td {
            padding: 15px 20px;
            border: 1px solid #e2e8f0;
            font-weight: 700;
        }
        th {
            background-color: var(--dark);
            color: var(--light);
        }
        tr:nth-child(even) {
            background-color: var(--bg-gray);
        }
        .highlight-cell {
            background-color: rgba(112, 0, 255, 0.05);
            color: var(--primary);
        }

        /* 案例展示区图片容器 */
        .case-img-container {
            border: 2px solid var(--dark);
            margin-bottom: 15px;
            overflow: hidden;
        }
        .case-img-container img {
            width: 100%;
            display: block;
            object-fit: cover;
            transition: transform 0.3s;
        }
        .case-img-container:hover img {
            transform: scale(1.05);
        }

        /* FAQ手风琴 */
        .faq-item {
            border: var(--border-width) solid var(--dark);
            margin-bottom: 15px;
            background-color: var(--light);
            box-shadow: 4px 4px 0px var(--dark);
        }
        .faq-question {
            padding: 20px;
            font-weight: 800;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: var(--light);
            user-select: none;
        }
        .faq-question::after {
            content: '+';
            font-size: 24px;
            color: var(--primary);
            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;
            border-top: 0 solid var(--dark);
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            border-top: var(--border-width) solid var(--dark);
        }
        .faq-answer-inner {
            padding: 20px;
            color: #475569;
            font-weight: 500;
        }

        /* Token 比价参考样式 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .token-card {
            border: var(--border-width) solid var(--dark);
            background-color: var(--light);
            padding: 20px;
            box-shadow: 4px 4px 0px var(--accent);
        }
        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 2px solid var(--dark);
            padding-bottom: 10px;
            margin-bottom: 15px;
        }
        .token-name {
            font-weight: 900;
            font-size: 18px;
        }
        .token-badge {
            background-color: var(--secondary);
            color: var(--light);
            padding: 2px 8px;
            font-size: 12px;
            font-weight: bold;
        }
        .token-price {
            font-size: 24px;
            font-weight: 900;
            color: var(--primary);
        }

        /* 需求匹配表单 */
        .form-wrap {
            background-color: var(--light);
            border: var(--border-width) solid var(--dark);
            padding: 40px;
            box-shadow: 8px 8px 0px var(--dark);
            max-width: 800px;
            margin: 0 auto;
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .form-group-full {
            grid-column: span 2;
        }
        .form-label {
            font-weight: 800;
            font-size: 14px;
        }
        .form-control {
            border: 2px solid var(--dark);
            padding: 10px 15px;
            font-size: 15px;
            font-weight: 700;
            outline: none;
            background-color: var(--bg-gray);
        }
        .form-control:focus {
            border-color: var(--primary);
            background-color: var(--light);
        }
        textarea.form-control {
            height: 120px;
            resize: none;
        }

        /* 客户评论 */
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 20px;
        }
        .comment-card {
            background-color: var(--light);
            border: var(--border-width) solid var(--dark);
            padding: 25px;
            box-shadow: 4px 4px 0px var(--secondary);
        }
        .comment-user {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }
        .user-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--accent);
            border: 2px solid var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--dark);
        }
        .user-meta h4 {
            font-size: 16px;
            font-weight: 800;
        }
        .user-meta span {
            font-size: 12px;
            color: #64748b;
            font-weight: 600;
        }

        /* 行业资讯 / 知识库 */
        .article-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .article-item {
            border: 2px solid var(--dark);
            background-color: var(--light);
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.2s;
            box-shadow: 3px 3px 0px var(--dark);
        }
        .article-item:hover {
            transform: translate(-2px, -2px);
            box-shadow: 5px 5px 0px var(--accent);
        }
        .article-title {
            font-weight: 800;
            color: var(--dark);
            text-decoration: none;
        }
        .article-title:hover {
            color: var(--primary);
        }
        .article-date {
            font-size: 14px;
            color: #64748b;
            font-weight: bold;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: var(--light);
            padding: 60px 0 30px 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            font-size: 18px;
            color: var(--accent);
            margin-bottom: 20px;
            border-left: 4px solid var(--secondary);
            padding-left: 10px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: #cbd5e1;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--secondary);
        }
        .qr-wrap {
            display: flex;
            gap: 15px;
            align-items: center;
        }
        .qr-wrap img {
            width: 90px;
            height: 90px;
            border: 2px solid var(--light);
        }
        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: #94a3b8;
        }
        .friend-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        .friend-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 12px;
        }
        .friend-links a:hover {
            color: var(--accent);
        }

        /* 浮动客服 */
        .float-kefu {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            background-color: var(--secondary);
            border: 3px solid var(--dark);
            box-shadow: 4px 4px 0px var(--dark);
            padding: 12px;
            cursor: pointer;
            font-weight: 900;
            color: var(--light);
            text-decoration: none;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s;
        }
        .float-kefu:hover {
            transform: translateY(-4px);
            box-shadow: 4px 8px 0px var(--dark);
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 38px;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: var(--light);
                border-bottom: var(--border-width) solid var(--dark);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            nav.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group-full {
                grid-column: span 1;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }