/* 缤纷糖果亮色风 核心配色与基础样式 */
        :root {
            --primary: #ff6b8b;      /* 糖果甜粉 */
            --secondary: #4a90e2;    /* 天空亮蓝 */
            --accent: #2ecc71;       /* 薄荷脆绿 */
            --warning: #f1c40f;      /* 柠檬暖黄 */
            --dark: #2c3e50;         /* 深蓝灰（高对比文字） */
            --light-bg: #fffcfc;     /* 浅粉白底色 */
            --card-bg: #ffffff;      /* 纯白卡片 */
            --text-muted: #7f8c8d;   /* 辅助文字 */
            --border-color: #ffe3e8; /* 浅粉边框 */
            --gradient-candy: linear-gradient(135deg, #ff6b8b 0%, #ff8e53 50%, #4a90e2 100%);
            --gradient-soft: linear-gradient(130deg, #fff5f7 0%, #f0f7ff 100%);
            --radius: 16px;
            --shadow: 0 10px 30px rgba(255, 107, 139, 0.08);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--light-bg);
            background-image: var(--gradient-soft);
            background-attachment: fixed;
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        ul {
            list-style: none;
        }

        /* 全局居中容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 头部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-item {
            font-weight: 500;
            font-size: 15px;
            color: var(--dark);
        }

        .nav-item:hover {
            color: var(--primary);
        }

        .nav-btn {
            background: var(--gradient-candy);
            color: #fff;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(255, 107, 139, 0.3);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 107, 139, 0.4);
            color: #fff;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* 首屏 Hero Section (无图片) */
        .hero {
            padding: 160px 0 80px 0;
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            left: 10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 107, 139, 0.15) 0%, rgba(255,255,255,0) 70%);
            z-index: -1;
            filter: blur(20px);
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 10%;
            right: 10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(74, 144, 226, 0.15) 0%, rgba(255,255,255,0) 70%);
            z-index: -1;
            filter: blur(20px);
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 107, 139, 0.1);
            color: var(--primary);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 107, 139, 0.2);
        }

        .hero h1 {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .hero h1 span {
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 35px auto;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
        }

        .btn-main {
            padding: 14px 35px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition);
        }

        .btn-primary {
            background: var(--gradient-candy);
            color: #fff;
            box-shadow: 0 8px 25px rgba(255, 107, 139, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(255, 107, 139, 0.45);
            color: #fff;
        }

        .btn-secondary {
            background: #fff;
            color: var(--dark);
            border: 2px solid var(--border-color);
            box-shadow: var(--shadow);
        }

        .btn-secondary:hover {
            transform: translateY(-3px);
            border-color: var(--secondary);
            color: var(--secondary);
        }

        /* 核心数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }

        .stat-card {
            background: var(--card-bg);
            border: 2px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-number span {
            font-size: 20px;
        }

        .stat-title {
            font-size: 14px;
            color: var(--dark);
            font-weight: 600;
        }

        .stat-desc {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* 通用栏目容器与标题 */
        section {
            padding: 80px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(74, 144, 226, 0.1);
            color: var(--secondary);
            border-radius: 30px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 关于我们与平台介绍 */
        .about-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .feat-item {
            background: #fff;
            padding: 20px;
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
        }

        .feat-item h4 {
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .feat-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        .about-media {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 15px 40px rgba(0,0,0,0.08);
            border: 4px solid #fff;
        }

        .about-media img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* 全平台AIGC服务与一站式制作 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: #fff;
            border: 2px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--secondary);
        }

        .service-icon {
            font-size: 40px;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tags span {
            background: #f0f7ff;
            color: var(--secondary);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 30px;
            font-weight: 500;
        }

        /* 平台聚合标签云 */
        .model-cloud {
            background: #fff;
            border: 2px solid var(--border-color);
            border-radius: var(--radius);
            padding: 40px;
            text-align: center;
            box-shadow: var(--shadow);
        }

        .model-cloud h3 {
            margin-bottom: 25px;
            font-size: 22px;
        }

        .tag-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .tag-cloud-item {
            padding: 8px 18px;
            background: var(--light-bg);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
            transition: var(--transition);
            cursor: default;
        }

        .tag-cloud-item:hover {
            background: var(--gradient-candy);
            color: #fff;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* 解决方案与全国网络 */
        .solutions-section {
            background: #fff5f7;
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: 0 10px 25px rgba(255, 107, 139, 0.05);
            border-bottom: 4px solid var(--primary);
        }

        .solution-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
        }

        .solution-list {
            margin-top: 15px;
        }

        .solution-list li {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            padding-left: 15px;
            position: relative;
        }

        .solution-list li::before {
            content: '✓';
            color: var(--accent);
            position: absolute;
            left: 0;
            font-weight: bold;
        }

        /* 流程步骤区 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-card {
            background: #fff;
            border: 2px solid var(--border-color);
            border-radius: var(--radius);
            padding: 30px 20px;
            text-align: center;
            z-index: 2;
            position: relative;
        }

        .step-num {
            width: 45px;
            height: 45px;
            background: var(--gradient-candy);
            color: #fff;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-weight: 800;
            font-size: 18px;
            margin: 0 auto 20px auto;
            box-shadow: 0 5px 15px rgba(255,107,139,0.3);
        }

        .step-card h3 {
            font-size: 16px;
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        /* 技术标准 */
        .tech-standards {
            margin-top: 50px;
            background: #fff;
            padding: 30px;
            border-radius: var(--radius);
            border: 2px solid var(--border-color);
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .tech-item {
            text-align: center;
        }

        .tech-item h4 {
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .tech-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: var(--radius);
            border: 2px solid var(--border-color);
            background: #fff;
            box-shadow: var(--shadow);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .compare-table th, .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
        }

        .compare-table th {
            background-color: #fff5f7;
            font-weight: 700;
            color: var(--dark);
        }

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

        .compare-table .highlight {
            background-color: rgba(255, 107, 139, 0.03);
            font-weight: 600;
        }

        .badge-star {
            color: var(--warning);
            font-weight: bold;
        }

        .score-box {
            background: var(--gradient-candy);
            color: white;
            padding: 15px;
            border-radius: var(--radius);
            text-align: center;
            max-width: 250px;
            margin: 30px auto 0 auto;
            box-shadow: 0 5px 15px rgba(255,107,139,0.3);
        }

        .score-box .num {
            font-size: 28px;
            font-weight: 800;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .token-card {
            background: #fff;
            border-radius: var(--radius);
            border: 2px solid var(--border-color);
            padding: 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .token-card.best::before {
            content: '全网低价';
            position: absolute;
            top: 15px;
            right: -30px;
            background: var(--accent);
            color: #fff;
            font-size: 10px;
            padding: 4px 30px;
            transform: rotate(45deg);
            font-weight: bold;
        }

        .token-card h3 {
            font-size: 18px;
            margin-bottom: 15px;
        }

        .token-price {
            font-size: 28px;
            color: var(--primary);
            font-weight: 800;
            margin-bottom: 15px;
        }

        .token-price span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .token-features {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        /* 培训版块 */
        .training-section {
            background: #f0f7ff;
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .training-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: 0 8px 20px rgba(74, 144, 226, 0.05);
            border-top: 4px solid var(--secondary);
        }

        .training-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .training-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .training-meta {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            border-top: 1px dashed var(--border-color);
            padding-top: 12px;
        }

        /* 客户案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: #fff;
            border-radius: var(--radius);
            border: 2px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #eee;
        }

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

        .case-info {
            padding: 20px;
        }

        .case-info h3 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .case-info p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            position: relative;
        }

        .review-quote {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 20px;
            line-height: 1.5;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gradient-soft);
            display: flex;
            justify-content: center;
            align-items: center;
            font-weight: bold;
            color: var(--primary);
            border: 2px solid var(--border-color);
        }

        .author-info h4 {
            font-size: 13px;
            margin: 0;
        }

        .author-info p {
            font-size: 11px;
            color: var(--text-muted);
            margin: 0;
        }

        /* FAQ折叠面板 */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 2px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-btn {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 15px;
            font-weight: 700;
            color: var(--dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            outline: none;
        }

        .faq-btn::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.2s ease;
        }

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

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.2s ease-out;
            background-color: #fafbfc;
        }

        .faq-content p {
            padding: 0 24px 18px 24px;
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        /* 术语百科与排查 */
        .wiki-section {
            background: #fff5f7;
        }

        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .wiki-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 20px;
            border-left: 4px solid var(--accent);
        }

        .wiki-card h4 {
            margin-bottom: 8px;
        }

        .wiki-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        /* 资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: #fff;
            border-radius: var(--radius);
            border: 2px solid var(--border-color);
            padding: 20px;
            transition: var(--transition);
        }

        .news-card:hover {
            border-color: var(--primary);
        }

        .news-date {
            font-size: 11px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-card h3 {
            font-size: 15px;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 联系我们 & 需求表单 */
        .contact-wrap {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info {
            padding-right: 20px;
        }

        .contact-item {
            margin-bottom: 25px;
        }

        .contact-item h4 {
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .contact-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 20px;
        }

        .qr-box {
            text-align: center;
            font-size: 12px;
            color: var(--text-muted);
        }

        .qr-box img {
            width: 100px;
            height: 100px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 6px;
            display: block;
        }

        .form-card {
            background: #fff;
            border-radius: var(--radius);
            border: 2px solid var(--border-color);
            padding: 40px;
            box-shadow: var(--shadow);
        }

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

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 107, 139, 0.1);
        }

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232c3e50' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            background-size: 16px;
        }

        .btn-submit {
            width: 100%;
            padding: 14px;
            background: var(--gradient-candy);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            box-shadow: 0 5px 15px rgba(255,107,139,0.2);
            transition: var(--transition);
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255,107,139,0.3);
        }

        /* 底部信息区 */
        footer {
            background-color: var(--dark);
            color: #ecf0f1;
            padding: 60px 0 30px 0;
            border-top: 4px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-about h3 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 18px;
        }

        .footer-about p {
            font-size: 13px;
            color: #bdc3c7;
            line-height: 1.8;
        }

        .footer-links h3 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 16px;
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #bdc3c7;
            font-size: 13px;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .friend-links {
            border-top: 1px solid #34495e;
            padding-top: 20px;
            margin-top: 20px;
        }

        .friend-links h4 {
            color: #fff;
            font-size: 13px;
            margin-bottom: 10px;
        }

        .friend-links-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 15px;
        }

        .friend-links-wrap a {
            color: #95a5a6;
            font-size: 12px;
        }

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

        .footer-bottom {
            border-top: 1px solid #34495e;
            padding-top: 20px;
            text-align: center;
            font-size: 12px;
            color: #95a5a6;
        }

        /* 侧边浮动客服 */
        .floating-kefu {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .kefu-btn {
            width: 50px;
            height: 50px;
            background: #fff;
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            border: 2px solid var(--border-color);
            position: relative;
            transition: var(--transition);
        }

        .kefu-btn:hover {
            transform: scale(1.08);
            border-color: var(--primary);
        }

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

        .kefu-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            border: 2px solid var(--border-color);
            border-radius: var(--radius);
            padding: 15px;
            box-shadow: var(--shadow);
            display: none;
            text-align: center;
            width: 140px;
        }

        .kefu-popover img {
            width: 110px;
            height: 110px;
            display: block;
            margin: 0 auto 8px auto;
        }

        .kefu-popover p {
            font-size: 11px;
            color: var(--dark);
            margin: 0;
            font-weight: 600;
        }

        .kefu-btn:hover .kefu-popover {
            display: block;
        }

        /* 移动端响应式样式 */
        @media (max-width: 1024px) {
            .stats-grid, .services-grid, .solutions-grid, .process-steps, .token-grid, .training-grid, .case-grid, .reviews-grid, .wiki-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-wrap, .contact-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            header {
                padding: 10px 0;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                border-bottom: 2px solid var(--border-color);
                display: none;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .hero h1 {
                font-size: 30px;
            }
            .stats-grid, .services-grid, .solutions-grid, .process-steps, .token-grid, .training-grid, .case-grid, .reviews-grid, .wiki-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn-main {
                width: 100%;
                max-width: 280px;
            }
        }