:root {
            --primary-gradient: linear-gradient(135deg, #FF5E62 0%, #FF9966 30%, #4EAF0A 60%, #00A8FF 85%, #9B5DE5 100%);
            --rainbow-1: #FF5E62;
            --rainbow-2: #FF9966;
            --rainbow-3: #FFD200;
            --rainbow-4: #4EAF0A;
            --rainbow-5: #00A8FF;
            --rainbow-6: #9B5DE5;
            --text-dark: #1E293B;
            --text-muted: #64748B;
            --bg-light: #F8FAFC;
            --card-shadow: 0 10px 30px rgba(0,0,0,0.05);
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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-light);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            z-index: 1000;
            display: flex;
            align-items: center;
        }

        header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

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

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

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

        nav {
            display: flex;
            gap: 20px;
        }

        nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition-smooth);
        }

        nav a:hover {
            color: var(--rainbow-1);
        }

        .nav-btn {
            background: var(--primary-gradient);
            color: white !important;
            padding: 8px 16px;
            border-radius: 20px;
            font-weight: bold;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

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

        /* Hero 首屏 - 无图片，多彩渐变与数据排版 */
        .hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 10% 20%, rgba(255, 94, 98, 0.05) 0%, rgba(0, 168, 255, 0.05) 90%);
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary-gradient);
        }

        .badge-rainbow {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 30px;
            background: linear-gradient(135deg, rgba(255, 94, 98, 0.1), rgba(0, 168, 255, 0.1));
            border: 1px solid rgba(0, 168, 255, 0.2);
            color: var(--rainbow-5);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 30px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 50px;
        }

        .btn-main {
            padding: 15px 35px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: bold;
            text-decoration: none;
            transition: var(--transition-smooth);
            cursor: pointer;
        }

        .btn-main.primary {
            background: var(--primary-gradient);
            color: white;
            box-shadow: 0 4px 15px rgba(255, 94, 98, 0.3);
        }

        .btn-main.primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 94, 98, 0.4);
        }

        .btn-main.secondary {
            background: white;
            color: var(--text-dark);
            border: 2px solid #E2E8F0;
        }

        .btn-main.secondary:hover {
            border-color: var(--rainbow-5);
            color: var(--rainbow-5);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 50px;
        }

        .stat-card {
            background: white;
            padding: 25px 15px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border-bottom: 4px solid var(--rainbow-5);
            transition: var(--transition-smooth);
        }

        .stat-card:nth-child(2) { border-bottom-color: var(--rainbow-1); }
        .stat-card:nth-child(3) { border-bottom-color: var(--rainbow-4); }
        .stat-card:nth-child(4) { border-bottom-color: var(--rainbow-6); }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 通用区块设置 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

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

        .section-title h2 {
            font-size: 32px;
            font-weight: 800;
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 2px;
        }

        .section-title p {
            color: var(--text-muted);
            margin-top: 10px;
            font-size: 16px;
        }

        /* 关于我们 & 平台介绍 */
        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            margin-bottom: 15px;
            color: var(--rainbow-1);
        }

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

        .about-feature-list {
            list-style: none;
        }

        .about-feature-list li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            font-size: 15px;
        }

        .about-feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--rainbow-4);
            font-weight: bold;
        }

        .platform-intro-box {
            background: white;
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--card-shadow);
            border-left: 6px solid var(--rainbow-5);
        }

        .intro-item {
            margin-bottom: 20px;
        }

        .intro-item:last-child {
            margin-bottom: 0;
        }

        .intro-item h4 {
            font-size: 16px;
            font-weight: bold;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

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

        /* 全平台AIGC服务 (模型标签云) */
        .models-box {
            background: white;
            border-radius: 24px;
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

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

        .tag-cloud span {
            padding: 8px 16px;
            background: #F1F5F9;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition-smooth);
            border: 1px solid transparent;
        }

        .tag-cloud span:hover {
            background: white;
            border-color: var(--rainbow-2);
            color: var(--rainbow-1);
            transform: scale(1.05);
        }

        /* 一站式AIGC制作 (主打场景能力卡片) */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .service-card {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            transition: var(--transition-smooth);
            border: 1px solid #F1F5F9;
        }

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

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 20px;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

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

        /* 全行业解决方案 */
        .solution-tabs {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .solution-card {
            background: white;
            padding: 25px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border-top: 4px solid var(--rainbow-6);
        }

        .solution-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--rainbow-6);
        }

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

        /* 标准化AIGC流程 */
        .flow-timeline {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 40px;
        }

        .flow-timeline::before {
            content: '';
            position: absolute;
            top: 25px;
            left: 0;
            right: 0;
            height: 4px;
            background: #E2E8F0;
            z-index: 1;
        }

        .flow-step {
            width: 18%;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: white;
            border: 4px solid var(--rainbow-5);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 18px;
            margin: 0 auto 15px;
            color: var(--rainbow-5);
        }

        .flow-step:nth-child(2) .step-num { border-color: var(--rainbow-1); color: var(--rainbow-1); }
        .flow-step:nth-child(3) .step-num { border-color: var(--rainbow-3); color: var(--rainbow-3); }
        .flow-step:nth-child(4) .step-num { border-color: var(--rainbow-4); color: var(--rainbow-4); }
        .flow-step:nth-child(5) .step-num { border-color: var(--rainbow-6); color: var(--rainbow-6); }

        .flow-step h4 {
            font-size: 15px;
            margin-bottom: 5px;
        }

        .flow-step p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 全国服务网络 & 技术标准 */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }

        .network-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .network-info h3 {
            font-size: 24px;
            margin-bottom: 15px;
        }

        .network-cities {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .city-tag {
            padding: 6px 12px;
            background: rgba(0, 168, 255, 0.1);
            color: var(--rainbow-5);
            border-radius: 4px;
            font-size: 13px;
            font-weight: bold;
        }

        .tech-standards {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
        }

        .standard-item {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 15px 0;
            border-bottom: 1px solid #F1F5F9;
        }

        .standard-item:last-child {
            border-bottom: none;
        }

        .std-bullet {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--rainbow-4);
        }

        .std-text h4 {
            font-size: 15px;
            color: var(--text-dark);
        }

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

        /* 客户案例中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .case-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: var(--transition-smooth);
        }

        .case-card:hover {
            transform: translateY(-5px);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #EDF2F7;
            position: relative;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

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

        .case-info {
            padding: 20px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 10px;
            background: #FFF5F5;
            color: #FF5E62;
            border-radius: 4px;
            font-size: 11px;
            font-weight: bold;
            margin-bottom: 10px;
        }

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

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

        /* 对比评测 - 9.9分推荐五星 */
        .review-header {
            background: linear-gradient(135deg, rgba(255, 94, 98, 0.05), rgba(155, 93, 229, 0.05));
            border-radius: 20px;
            padding: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            border: 1px solid rgba(255, 94, 98, 0.1);
        }

        .review-score-area {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .review-stars {
            font-size: 32px;
            color: var(--rainbow-3);
        }

        .review-num {
            font-size: 48px;
            font-weight: 900;
            color: var(--rainbow-1);
        }

        .review-num span {
            font-size: 20px;
            color: var(--text-muted);
            font-weight: normal;
        }

        .comparison-wrapper {
            width: 100%;
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            min-width: 800px;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px;
            text-align: left;
            border-bottom: 1px solid #E2E8F0;
        }

        .comparison-table th {
            background: #F8FAFC;
            font-weight: bold;
            color: var(--text-dark);
        }

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

        .table-highlight {
            background: rgba(0, 168, 255, 0.02);
            font-weight: 600;
            color: var(--rainbow-5);
        }

        /* 职业技术培训 & 人工智能培训 */
        .training-container {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
        }

        .training-certs {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .cert-card {
            background: white;
            padding: 20px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border-left: 4px solid var(--rainbow-3);
        }

        .cert-card h4 {
            font-size: 15px;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .cert-card p {
            font-size: 12px;
            color: var(--text-muted);
        }

        .training-info {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border-right: 4px solid var(--rainbow-4);
        }

        .training-info h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--rainbow-4);
        }

        .training-info ul {
            list-style: none;
            margin-top: 15px;
        }

        .training-info ul li {
            margin-bottom: 10px;
            font-size: 14px;
            padding-left: 20px;
            position: relative;
        }

        .training-info ul li::before {
            content: '●';
            color: var(--rainbow-4);
            position: absolute;
            left: 0;
        }

        /* Token 比价参考 & 加盟代理 */
        .token-agent-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
        }

        .token-pricing-box {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
        }

        .price-list {
            margin-top: 20px;
        }

        .price-row {
            display: flex;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid #F1F5F9;
        }

        .price-row:last-child {
            border-bottom: none;
        }

        .model-name {
            font-weight: 500;
        }

        .model-cost {
            color: var(--rainbow-1);
            font-weight: bold;
        }

        .agent-earnings-box {
            background: linear-gradient(135deg, var(--rainbow-6), var(--rainbow-5));
            color: white;
            padding: 40px 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
        }

        .agent-earnings-box h3 {
            font-size: 24px;
            margin-bottom: 15px;
        }

        .agent-earnings-box p {
            font-size: 14px;
            opacity: 0.9;
            margin-bottom: 25px;
        }

        .earning-points {
            margin-bottom: 25px;
        }

        .earning-point {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 15px;
        }

        /* 帮助中心 & FAQ折叠面板 & 自助排查 & 术语百科 */
        .faq-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: white;
            border-radius: 8px;
            border: 1px solid #E2E8F0;
            overflow: hidden;
        }

        .faq-header {
            padding: 16px 20px;
            font-weight: bold;
            font-size: 15px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #F8FAFC;
            transition: var(--transition-smooth);
        }

        .faq-header::after {
            content: '+';
            font-size: 20px;
            font-weight: normal;
        }

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

        .faq-content {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-muted);
            font-size: 14px;
        }

        .faq-item.active .faq-content {
            padding: 16px 20px;
            max-height: 200px;
        }

        .troubleshoot-box {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border-top: 4px solid var(--rainbow-1);
            margin-bottom: 25px;
        }

        .troubleshoot-box h3 {
            font-size: 18px;
            margin-bottom: 15px;
            color: var(--rainbow-1);
        }

        .wiki-box {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border-top: 4px solid var(--rainbow-2);
        }

        .wiki-box h3 {
            font-size: 18px;
            margin-bottom: 15px;
            color: var(--rainbow-2);
        }

        .wiki-item {
            margin-bottom: 12px;
        }

        .wiki-item:last-child {
            margin-bottom: 0;
        }

        .wiki-item strong {
            display: block;
            font-size: 14px;
            color: var(--text-dark);
        }

        .wiki-item span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 客户评论卡片 (6条评论) */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .comment-card {
            background: white;
            padding: 25px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border-top: 4px solid #E2E8F0;
        }

        .comment-card:nth-child(1) { border-top-color: var(--rainbow-1); }
        .comment-card:nth-child(2) { border-top-color: var(--rainbow-2); }
        .comment-card:nth-child(3) { border-top-color: var(--rainbow-3); }
        .comment-card:nth-child(4) { border-top-color: var(--rainbow-4); }
        .comment-card:nth-child(5) { border-top-color: var(--rainbow-5); }
        .comment-card:nth-child(6) { border-top-color: var(--rainbow-6); }

        .comment-text {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 15px;
            font-style: italic;
        }

        .comment-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #E2E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
            color: var(--text-dark);
        }

        .author-info h4 {
            font-size: 14px;
            font-weight: bold;
        }

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

        /* 行业资讯 / 知识库 */
        .articles-container {
            background: white;
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

        .articles-placeholder {
            padding: 20px;
            background: #F8FAFC;
            border-radius: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 25px;
            border-left: 4px solid var(--rainbow-5);
        }

        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .article-item-link {
            display: block;
            padding: 15px;
            border-radius: 8px;
            background: #F8FAFC;
            text-decoration: none;
            color: var(--text-dark);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition-smooth);
            border-left: 3px solid transparent;
        }

        .article-item-link:hover {
            background: white;
            border-left-color: var(--rainbow-5);
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            transform: translateX(3px);
        }

        /* 智能需求匹配 & 联系我们 (表单及联系卡) */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
        }

        .form-box {
            background: white;
            padding: 40px;
            border-radius: 24px;
            box-shadow: var(--card-shadow);
        }

        .form-box h3 {
            font-size: 22px;
            margin-bottom: 20px;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 6px;
            font-size: 14px;
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #E2E8F0;
            border-radius: 8px;
            font-size: 14px;
            transition: var(--transition-smooth);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--rainbow-5);
            box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.1);
        }

        .contact-info-box {
            background: white;
            padding: 40px;
            border-radius: 24px;
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-details {
            margin-bottom: 30px;
        }

        .contact-item {
            margin-bottom: 15px;
            font-size: 14px;
        }

        .contact-item strong {
            color: var(--text-dark);
        }

        .qr-codes {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            align-items: center;
        }

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

        .qr-item img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border-radius: 8px;
            border: 1px solid #E2E8F0;
            padding: 5px;
            background: white;
            margin-bottom: 8px;
        }

        .qr-item span {
            display: block;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 浮动客服入口 */
        .floating-kefu {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            background: var(--primary-gradient);
            padding: 12px 20px;
            border-radius: 30px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            color: white;
            text-decoration: none;
            font-weight: bold;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition-smooth);
        }

        .floating-kefu:hover {
            transform: scale(1.05);
        }

        /* 页脚 & 友情链接 */
        footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 60px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-about h3 {
            color: white;
            margin-bottom: 15px;
        }

        .footer-links-title {
            color: white;
            font-weight: bold;
            margin-bottom: 15px;
        }

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

        .footer-links a {
            color: #94A3B8;
            text-decoration: none;
            transition: var(--transition-smooth);
        }

        .footer-links a:hover {
            color: white;
        }

        .copyright-bar {
            border-top: 1px solid #1E293B;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 移动端响应式样式 */
        @media (max-width: 992px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .about-content { grid-template-columns: 1fr; }
            .services-grid { grid-template-columns: repeat(2, 1fr); }
            .solution-tabs { grid-template-columns: repeat(2, 1fr); }
            .flow-timeline { flex-wrap: wrap; gap: 20px; }
            .flow-timeline::before { display: none; }
            .flow-step { width: 45%; }
            .network-grid { grid-template-columns: 1fr; }
            .cases-grid { grid-template-columns: repeat(2, 1fr); }
            .training-container { grid-template-columns: 1fr; }
            .token-agent-grid { grid-template-columns: 1fr; }
            .faq-grid { grid-template-columns: 1fr; }
            .comments-grid { grid-template-columns: repeat(2, 1fr); }
            .contact-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            nav {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            }

            nav.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .hero h1 { font-size: 28px; }
            .stats-grid { grid-template-columns: 1fr; }
            .services-grid { grid-template-columns: 1fr; }
            .solution-tabs { grid-template-columns: 1fr; }
            .flow-step { width: 100%; }
            .cases-grid { grid-template-columns: 1fr; }
            .comments-grid { grid-template-columns: 1fr; }
            .article-list { grid-template-columns: 1fr; }
            .copyright-bar { flex-direction: column; gap: 15px; text-align: center; }
        }