/* CSS 变量：高亮度鲜活风设计 */
        :root {
            --primary: #2563EB;
            --primary-light: #EFF6FF;
            --primary-gradient: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
            --accent: #F97316;
            --accent-light: #FFF7ED;
            --success: #10B981;
            --dark: #0F172A;
            --gray-dark: #334155;
            --gray-light: #64748B;
            --bg-light: #F8FAFC;
            --bg-card: #FFFFFF;
            --border: #E2E8F0;
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.02);
            --shadow-md: 0 10px 15px -3px rgba(37, 99, 235, 0.08), 0 4px 6px -2px rgba(37, 99, 235, 0.03);
            --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.05), 0 10px 10px -5px rgba(0,0,0,0.02);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --container-width: 1200px;
        }

        /* 基础重置 */
        * {
            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;
            -webkit-font-smoothing: antialiased;
        }

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-light);
            color: var(--dark);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 公共容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 90px 0;
        }

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

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 48px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 2px;
        }

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

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            border: none;
            outline: none;
        }

        .btn-primary {
            background: var(--primary-gradient);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
            filter: brightness(1.05);
        }

        .btn-secondary {
            background: #FFFFFF;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 导航栏 */
        .header-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 72px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

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

        .logo-wrap img {
            height: 38px;
            width: auto;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
        }

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

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 24px;
            height: 2px;
            background: var(--dark);
            transition: all 0.3s;
        }

        /* 首页 Hero 区域 (首屏无图片) */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 90px;
            background: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 40%),
                        radial-gradient(circle at 10% 70%, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
                        var(--bg-light);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(37, 99, 235, 0.15);
        }

        .hero-h1 {
            font-size: 40px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--dark);
            max-width: 800px;
            margin: 0 auto 20px;
            letter-spacing: -0.5px;
        }

        .hero-h1 span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--gray-light);
            max-width: 680px;
            margin: 0 auto 36px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            margin-bottom: 48px;
        }

        .hero-btn-main {
            font-size: 16px;
            padding: 14px 36px;
        }

        .hero-highlights {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
            border-top: 1px solid var(--border);
            padding-top: 40px;
        }

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

        .highlight-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .highlight-label {
            font-size: 13px;
            color: var(--gray-light);
            font-weight: 500;
        }

        /* 关于我们 & 平台介绍 */
        .about-section {
            background: #FFFFFF;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 16px;
            font-weight: 700;
        }

        .about-text {
            color: var(--gray-dark);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .about-feat-item {
            background: var(--bg-light);
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }

        .about-feat-icon {
            font-size: 24px;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .about-feat-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .about-feat-desc {
            font-size: 13px;
            color: var(--gray-light);
        }

        /* 全平台 AIGC 服务 */
        .services-section {
            background: var(--bg-light);
        }

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

        .service-card {
            background: var(--bg-card);
            padding: 32px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.2);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .service-card p {
            font-size: 14px;
            color: var(--gray-light);
            line-height: 1.6;
        }

        .model-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }

        .model-tag {
            background: var(--bg-light);
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 11px;
            color: var(--gray-dark);
            border: 1px solid var(--border);
        }

        /* 一站式 AIGC 制作 */
        .creation-section {
            background: #FFFFFF;
        }

        .creation-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .creation-card {
            background: var(--bg-light);
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            text-align: center;
            transition: transform 0.3s;
        }

        .creation-card:hover {
            transform: scale(1.03);
            border-color: var(--primary);
        }

        .creation-emoji {
            font-size: 32px;
            margin-bottom: 12px;
            display: block;
        }

        .creation-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .creation-card p {
            font-size: 13px;
            color: var(--gray-light);
        }

        /* 解决方案 & 服务网络 */
        .solutions-section {
            background: var(--bg-light);
        }

        .solutions-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
        }

        .tab-btn {
            background: #FFFFFF;
            border: 1px solid var(--border);
            padding: 10px 20px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
        }

        .solutions-content {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }

        .solution-pane {
            display: none;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .solution-pane.active {
            display: grid;
        }

        .solution-pane h3 {
            font-size: 24px;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .solution-pane ul {
            margin-top: 20px;
        }

        .solution-pane li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 10px;
            font-size: 14px;
            color: var(--gray-dark);
        }

        .solution-pane li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: bold;
        }

        .network-box {
            background: var(--primary-light);
            border-radius: var(--radius-md);
            padding: 30px;
            border: 1px dashed rgba(37, 99, 235, 0.3);
            text-align: center;
        }

        .network-box h4 {
            color: var(--primary);
            font-size: 18px;
            margin-bottom: 10px;
        }

        .network-box p {
            font-size: 14px;
            color: var(--gray-dark);
        }

        /* 标准化流程 & 技术标准 */
        .process-section {
            background: #FFFFFF;
        }

        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 2px;
            background: var(--border);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -1px;
        }

        .timeline-item {
            padding: 10px 40px;
            position: relative;
            background: inherit;
            width: 50%;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 16px;
            height: 16px;
            right: -8px;
            background-color: #FFFFFF;
            border: 4px solid var(--primary);
            border-radius: 50%;
            top: 15px;
            z-index: 1;
        }

        .left-timeline {
            left: 0;
        }

        .right-timeline {
            left: 50%;
        }

        .right-timeline::after {
            left: -8px;
        }

        .timeline-content {
            padding: 20px;
            background: var(--bg-light);
            position: relative;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }

        .timeline-content h3 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .timeline-content p {
            font-size: 13px;
            color: var(--gray-dark);
        }

        /* 客户案例中心 */
        .cases-section {
            background: var(--bg-light);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

        .case-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .case-img-container {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #E2E8F0;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .case-info {
            padding: 20px;
        }

        .case-tag {
            display: inline-block;
            padding: 3px 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 11px;
            font-weight: 600;
            border-radius: 4px;
            margin-bottom: 10px;
        }

        .case-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .case-desc {
            font-size: 13px;
            color: var(--gray-light);
        }

        /* 对比评测 */
        .compare-section {
            background: #FFFFFF;
        }

        .compare-header-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--primary-light);
            border-radius: var(--radius-md);
            padding: 30px;
            margin-bottom: 30px;
            border: 1px solid rgba(37, 99, 235, 0.15);
        }

        .rating-num {
            font-size: 48px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

        .rating-stars {
            color: #FBBF24;
            font-size: 24px;
            margin-top: 6px;
        }

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

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

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

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

        .compare-table td strong {
            color: var(--primary);
        }

        /* Token 比价 */
        .price-section {
            background: var(--bg-light);
        }

        .price-table {
            width: 100%;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            margin-bottom: 30px;
            border-collapse: collapse;
        }

        .price-table th, .price-table td {
            padding: 16px 24px;
            text-align: left;
            font-size: 14px;
            border-bottom: 1px solid var(--border);
        }

        .price-table th {
            background: rgba(37, 99, 235, 0.03);
            font-weight: 700;
        }

        /* 培训认证 */
        .training-section {
            background: #FFFFFF;
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .training-card {
            background: var(--bg-light);
            padding: 24px 16px;
            border-radius: var(--radius-md);
            text-align: center;
            border: 1px solid var(--border);
            transition: all 0.3s;
        }

        .training-card:hover {
            border-color: var(--primary);
            background: #FFFFFF;
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .training-icon {
            font-size: 28px;
            margin-bottom: 12px;
            display: block;
        }

        .training-card h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--dark);
        }

        .training-card p {
            font-size: 12px;
            color: var(--gray-light);
        }

        /* 用户评论 */
        .reviews-section {
            background: var(--bg-light);
        }

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

        .review-card {
            background: #FFFFFF;
            padding: 30px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .review-text {
            font-size: 14px;
            color: var(--gray-dark);
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }

        .user-info h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--dark);
        }

        .user-info p {
            font-size: 12px;
            color: var(--gray-light);
        }

        /* 帮助中心 & FAQ */
        .faq-section {
            background: #FFFFFF;
        }

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

        .faq-item {
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.3s;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: #FFFFFF;
        }

        .faq-answer-content {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--gray-dark);
            line-height: 1.6;
            border-top: 1px solid var(--border);
        }

        /* AI术语 & 排查 */
        .help-tools-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 40px;
        }

        .tool-box {
            background: var(--bg-light);
            border: 1px solid var(--border);
            padding: 30px;
            border-radius: var(--radius-md);
        }

        .tool-box h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--dark);
        }

        .tool-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .tool-item {
            background: #FFFFFF;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            font-size: 13px;
        }

        .tool-item strong {
            color: var(--primary);
        }

        /* 行业资讯 / 知识库 */
        .news-section {
            background: var(--bg-light);
        }

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

        .news-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border);
            transition: transform 0.3s;
        }

        .news-card:hover {
            transform: translateY(-3px);
            border-color: var(--primary);
        }

        .news-date {
            font-size: 12px;
            color: var(--gray-light);
            margin-bottom: 8px;
        }

        .news-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

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

        /* 联系我们 & 表单 & 加盟代理 */
        .contact-section {
            background: #FFFFFF;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 60px;
            align-items: start;
        }

        .contact-info-wrap {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .detail-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .detail-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
            font-size: 18px;
        }

        .detail-text h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .detail-text p {
            font-size: 14px;
            color: var(--gray-light);
        }

        .qr-codes {
            display: flex;
            gap: 24px;
            background: var(--bg-light);
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }

        .qr-item {
            text-align: center;
            flex: 1;
        }

        .qr-item img {
            width: 100px;
            height: 100px;
            margin: 0 auto 8px;
            border: 1px solid var(--border);
            border-radius: 4px;
        }

        .qr-item span {
            font-size: 12px;
            color: var(--gray-dark);
            font-weight: 600;
        }

        .form-wrap {
            background: var(--bg-light);
            padding: 40px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

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

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: #FFFFFF;
            font-size: 14px;
            transition: border-color 0.3s;
            outline: none;
        }

        .form-control:focus {
            border-color: var(--primary);
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px;
            font-size: 15px;
            margin-top: 10px;
        }

        /* 友情链接与页脚 */
        .footer-section {
            background: var(--dark);
            color: #94A3B8;
            padding: 60px 0 30px;
            border-top: 1px solid #1E293B;
            font-size: 14px;
        }

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

        .footer-logo img {
            height: 38px;
            
            margin-bottom: 20px;
        }

        .footer-desc {
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-title {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a:hover {
            color: #FFFFFF;
        }

        .friend-links-area {
            border-top: 1px solid #1E293B;
            padding: 24px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .friend-links-area span {
            font-weight: 600;
            color: #FFFFFF;
        }

        .friend-links-area a {
            color: #94A3B8;
            font-size: 13px;
        }

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

        .copyright-area {
            border-top: 1px solid #1E293B;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
        }

        /* 浮动客服 */
        .floating-kf {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .kf-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #FFFFFF;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
            position: relative;
            border: 1px solid var(--border);
            transition: transform 0.3s;
        }

        .kf-btn:hover {
            transform: scale(1.05);
        }

        .kf-btn-primary {
            background: var(--primary-gradient);
            color: #FFFFFF;
            border: none;
        }

        .kf-qr-pop {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #FFFFFF;
            padding: 16px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            display: none;
            text-align: center;
            width: 140px;
        }

        .kf-qr-pop img {
            width: 100px;
            height: 100px;
            margin-bottom: 8px;
        }

        .kf-qr-pop span {
            font-size: 11px;
            color: var(--gray-dark);
            display: block;
        }

        .kf-btn:hover .kf-qr-pop {
            display: block;
        }

        /* 移动端响应式 */
        @media (max-width: 1024px) {
            .about-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .services-grid, .cases-grid, .reviews-grid, .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .creation-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-highlights {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                padding: 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                gap: 16px;
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-h1 {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .services-grid, .cases-grid, .reviews-grid, .creation-grid, .training-grid, .faq-grid, .help-tools-grid {
                grid-template-columns: 1fr;
            }
            .solution-pane {
                grid-template-columns: 1fr;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 20px;
            }
            .timeline-item::after {
                left: 22px;
                right: auto;
            }
            .right-timeline {
                left: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .copyright-area {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }