:root {
            --bg-main: #f8fafc;
            --text-main: #0f172a;
            --text-muted: #475569;
            --color-primary: #ff007f; /* 撞色粉红 */
            --color-secondary: #00f5d4; /* 撞色荧光青 */
            --color-accent: #7b2cbf; /* 科技紫 */
            --white: #ffffff;
            --border-color: #e2e8f0;
            --card-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.08);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-main);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 统一容器宽度 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 布局标题通用样式 */
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--text-main);
            position: relative;
            display: inline-block;
            margin-bottom: 16px;
            font-weight: 800;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            border-radius: 2px;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto;
        }

        section {
            padding: 100px 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* 按钮通用 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 99px;
            font-weight: 700;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--white);
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.5);
        }

        .btn-secondary {
            background: var(--text-main);
            color: var(--white);
        }

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

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

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

        .logo-container {
            display: flex;
            align-items: center;
        }

        .ai-page-logo {
            height: 45px;
            width: auto;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 20px;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-menu a:hover {
            color: var(--color-primary);
            background-color: rgba(255, 0, 127, 0.05);
        }

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

        .nav-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-main);
            transition: var(--transition);
        }

        /* 首屏 Hero 区域 - 绝对无图 */
        .hero {
            padding: 180px 0 120px 0;
            background: radial-gradient(circle at 90% 10%, rgba(0, 245, 212, 0.15), transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(255, 0, 127, 0.1), transparent 45%),
                        var(--white);
            text-align: center;
            position: relative;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 0, 127, 0.08);
            color: var(--color-primary);
            padding: 8px 18px;
            border-radius: 99px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 0, 127, 0.15);
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p.lead {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 60px;
        }

        .stat-card {
            background: var(--white);
            padding: 30px 20px;
            border-radius: 16px;
            text-align: center;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 关于我们与软件介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 60px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

        .feature-bullets {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 30px;
        }

        .feature-bullets li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: var(--text-main);
        }

        .feature-bullets li::before {
            content: "✓";
            color: var(--color-secondary);
            font-weight: 900;
            background: rgba(0, 245, 212, 0.15);
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 0.8rem;
        }

        .about-badge-card {
            background: linear-gradient(135deg, var(--color-accent), var(--text-main));
            color: var(--white);
            padding: 40px;
            border-radius: 24px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .about-badge-card::after {
            content: '';
            position: absolute;
            top: -20px;
            right: -20px;
            width: 120px;
            height: 120px;
            background: rgba(0, 245, 212, 0.2);
            border-radius: 50%;
            filter: blur(20px);
        }

        .about-badge-card h4 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--color-secondary);
        }

        /* 服务体系与场景 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px 30px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--color-primary);
            box-shadow: 0 20px 40px rgba(15, 23, 42, 0.05);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background: rgba(255, 0, 127, 0.06);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--color-primary);
            margin-bottom: 24px;
        }

        .service-card h3 {
            font-size: 1.35rem;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

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

        .platform-tag {
            background: var(--bg-main);
            color: var(--text-muted);
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
        }

        /* 支持的AI平台轮播滚动带 */
        .marquee-container {
            background: var(--white);
            padding: 24px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
            white-space: nowrap;
            position: relative;
        }

        .marquee-inner {
            display: inline-block;
            animation: marquee 30s linear infinite;
        }

        .marquee-inner span {
            display: inline-block;
            margin-right: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-muted);
        }

        @keyframes marquee {
            0% { transform: translate3d(0, 0, 0); }
            100% { transform: translate3d(-50%, 0, 0); }
        }

        /* 全自动AIGC制作流程 - 三步关键 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 120px;
            left: 10%;
            right: 10%;
            height: 4px;
            background: dashed var(--border-color);
            z-index: 1;
        }

        .step-item {
            position: relative;
            z-index: 2;
            text-align: center;
            background: var(--white);
            padding: 40px 30px;
            border-radius: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
        }

        .step-num {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--white);
            font-size: 2.2rem;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 30px auto;
            border: 8px solid var(--bg-main);
            box-shadow: 0 0 0 4px var(--color-primary);
        }

        .step-item h3 {
            font-size: 1.4rem;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 解决方案与网络 */
        .solutions-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .tab-btn {
            background: var(--white);
            border: 1px solid var(--border-color);
            padding: 12px 24px;
            border-radius: 99px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }

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

        .solutions-content {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 50px;
            box-shadow: var(--card-shadow);
        }

        .solution-pane {
            display: none;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

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

        .solution-pane h3 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .solution-pane p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }

        .solution-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .sol-feature-item {
            background: var(--bg-main);
            padding: 16px;
            border-radius: 12px;
            border-left: 4px solid var(--color-secondary);
            font-weight: 600;
        }

        /* 流程与技术标准 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            width: 4px;
            top: 0;
            bottom: 0;
            background: var(--border-color);
            transform: translateX(-50%);
        }

        .timeline-item {
            padding: 30px 0;
            width: 50%;
            position: relative;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            padding-right: 40px;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            padding-left: 40px;
        }

        .timeline-dot {
            width: 20px;
            height: 20px;
            background: var(--color-primary);
            border: 4px solid var(--white);
            border-radius: 50%;
            position: absolute;
            top: 40px;
            z-index: 2;
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            right: -10px;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -10px;
        }

        .timeline-content {
            background: var(--white);
            padding: 24px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
        }

        .timeline-content h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: var(--color-accent);
        }

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

        .case-card {
            background: var(--white);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-secondary);
        }

        .case-img-container {
            width: 100%;
            height: 220px;
            overflow: hidden;
            background: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .case-body {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            background: rgba(0, 245, 212, 0.12);
            color: var(--text-main);
            padding: 4px 10px;
            border-radius: 6px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .case-body h3 {
            font-size: 1.25rem;
            margin-bottom: 8px;
        }

        .case-body p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 对比评测 */
        .rating-badge {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--white);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            max-width: 600px;
            margin: 0 auto 50px auto;
            box-shadow: var(--card-shadow);
        }

        .rating-score {
            font-size: 4.5rem;
            font-weight: 900;
            line-height: 1;
            margin-bottom: 10px;
        }

        .rating-stars {
            color: #ffd166;
            font-size: 2rem;
            margin-bottom: 16px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            background: var(--white);
            box-shadow: var(--card-shadow);
        }

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

        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .compare-table tr.highlight {
            background-color: rgba(255, 0, 127, 0.02);
        }

        .compare-table tr.highlight td:first-child {
            border-left: 4px solid var(--color-primary);
        }

        .badge-yes {
            color: #10b981;
            font-weight: bold;
        }

        .badge-no {
            color: #ef4444;
            font-weight: bold;
        }

        /* Token 比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .price-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            transition: var(--transition);
        }

        .price-card.hot {
            border: 2px solid var(--color-primary);
            position: relative;
        }

        .price-card.hot::before {
            content: '全网最低价';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-primary);
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 99px;
            text-transform: uppercase;
        }

        .price-card h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

        .price-val {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .price-val span {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        .price-list {
            list-style: none;
            text-align: left;
            margin-bottom: 24px;
        }

        .price-list li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 培训中心 */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .train-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

        .train-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }

        .train-icon {
            font-size: 2.5rem;
            margin-bottom: 16px;
        }

        .train-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .train-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 帮助与百科 */
        .help-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 60px;
        }

        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
        }

        .faq-header {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            transition: var(--transition);
        }

        .faq-header:hover {
            background: rgba(0, 245, 212, 0.04);
        }

        .faq-icon {
            transition: var(--transition);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background: var(--bg-main);
        }

        .faq-content {
            padding: 24px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
        }

        .faq-item.active .faq-body {
            max-height: 1000px;
            transition: max-height 0.5s ease-in-out;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        .sidebar-widgets {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .widget-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--card-shadow);
        }

        .widget-card h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            border-left: 4px solid var(--color-primary);
            padding-left: 12px;
        }

        .widget-list {
            list-style: none;
        }

        .widget-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .widget-list li:last-child {
            border-bottom: none;
        }

        .widget-list a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }

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

        /* 客户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .comment-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--card-shadow);
        }

        .comment-text {
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

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

        .user-avatar {
            width: 48px;
            height: 48px;
            background: var(--bg-main);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-accent);
            border: 2px solid var(--border-color);
        }

        .user-info h4 {
            font-size: 1rem;
            font-weight: 700;
        }

        .user-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 表单与联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
        }

        .form-container {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 50px;
            box-shadow: var(--card-shadow);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 700;
            font-size: 0.95rem;
        }

        .form-control {
            width: 100%;
            padding: 14px 20px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
            background: var(--bg-main);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--color-primary);
            background: var(--white);
        }

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

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

        .qr-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 40px;
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .qr-card img {
            width: 180px;
            height: 180px;
            margin-bottom: 20px;
        }

        .contact-details {
            list-style: none;
        }

        .contact-details li {
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.05rem;
        }

        /* 页脚 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 80px 0 30px 0;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 60px;
            margin-bottom: 60px;
        }

        .footer-logo img {
            height: 50px;
            margin-bottom: 20px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 1.1rem;
            margin-bottom: 24px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 2px;
            background: var(--color-secondary);
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--white);
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
        }

        .friend-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .friend-links a {
            color: #64748b;
            text-decoration: none;
            transition: var(--transition);
        }

        .friend-links a:hover {
            color: var(--color-secondary);
        }

        /* 浮动客服 */
        .float-widget {
            position: fixed;
            bottom: 40px;
            right: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 60px;
            height: 60px;
            background: var(--white);
            border-radius: 50%;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
            background: var(--color-primary);
            color: var(--white);
        }

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

        .qr-popover {
            position: absolute;
            bottom: 70px;
            right: 0;
            background: var(--white);
            border: 1px solid var(--border-color);
            padding: 16px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 180px;
        }

        .qr-popover img {
            width: 150px;
            height: 150px;
        }

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

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .steps-grid::before {
                display: none;
            }
            .price-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .train-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                right: 0;
                background: var(--white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 16px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .about-grid, .solution-pane, .help-layout, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px !important;
                padding-right: 0 !important;
                text-align: left !important;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
            .timeline-dot {
                left: 10px !important;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .train-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .comments-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
        }