/* 基础与变量重置 - 高饱和艳彩风格 */
        :root {
            --primary: #ff007f; /* 高饱和艳粉 */
            --secondary: #00f0ff; /* 霓虹亮蓝 */
            --accent: #ffb700; /* 高亮明黄 */
            --dark: #0f111a; /* 科技深蓝黑 */
            --light-bg: #f8fafc; /* 浅暖灰白 */
            --text-main: #1e293b; /* 深灰正文 */
            --text-muted: #64748b; /* 灰度辅助文字 */
            --border-color: #e2e8f0;
            --gradient-primary: linear-gradient(135deg, #ff007f 0%, #7000ff 100%);
            --gradient-cyan: linear-gradient(135deg, #00f0ff 0%, #0072ff 100%);
            --gradient-warm: linear-gradient(135deg, #ff9f00 0%, #ff007f 100%);
            --card-shadow: 0 10px 30px -10px rgba(0, 240, 255, 0.15);
            --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(--light-bg);
        }

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

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

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

        /* 统一外层居中容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            outline: none;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.6);
        }

        .btn-secondary {
            background: var(--gradient-cyan);
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
        }

        .btn-secondary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 240, 255, 0.5);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff;
        }

        /* 标签样式 */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: bold;
            text-transform: uppercase;
            background: rgba(255, 0, 127, 0.1);
            color: var(--primary);
            margin-bottom: 15px;
        }

        /* 区块通用样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
            background: linear-gradient(90deg, var(--dark) 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
        }

        /* 顶部导航 */
        header.nav-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

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

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

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .logo-text {
            font-weight: 800;
            font-size: 1.3rem;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-item a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            padding: 8px 12px;
            border-radius: 4px;
        }

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

        .nav-btn-group {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: none;
            padding: 5px;
        }

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

        /* Hero首屏 - 无图，高饱和色块、渐变与科技动感 */
        .hero-section {
            background: radial-gradient(circle at 90% 10%, rgba(0, 240, 255, 0.15) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(255, 0, 127, 0.12) 0%, transparent 40%),
                        #ffffff;
            padding: 120px 0 100px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        /* H1 限制在 20字以内 */
        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 900;
            margin-bottom: 25px;
            color: var(--dark);
        }

        .hero-title span.accent {
            background: linear-gradient(135deg, #ff007f 0%, #00f0ff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .hero-tags {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        .hero-tag {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border-color);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            color: var(--text-main);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

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

        .stat-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 25px 20px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 5px;
        }

        .stat-num span {
            font-size: 1rem;
            color: var(--text-muted);
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-main);
            font-weight: 600;
        }

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

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

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

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .about-feat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
        }

        .about-feat-item::before {
            content: "✓";
            color: var(--primary);
            font-weight: 900;
            font-size: 1.2rem;
        }

        /* 全平台AIGC服务与模型聚合 */
        .models-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
            gap: 15px;
        }

        .model-pill {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 12px;
            border-radius: 12px;
            text-align: center;
            font-size: 0.9rem;
            font-weight: bold;
            color: var(--dark);
            transition: var(--transition);
        }

        .model-pill:hover {
            background: var(--gradient-primary);
            color: #ffffff;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* 一站式AIGC制作 - 核心服务卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 35px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--gradient-primary);
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow);
            border-color: rgba(255, 0, 127, 0.2);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark);
        }

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

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

        .solution-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 25px;
            text-align: center;
            transition: var(--transition);
        }

        .solution-card:hover {
            background: var(--dark);
            color: #ffffff;
            transform: translateY(-3px);
        }

        .solution-card:hover h3 {
            color: var(--secondary);
        }

        .solution-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--dark);
            transition: var(--transition);
        }

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

        /* 标准化AIGC流程 */
        .steps-container {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            position: relative;
        }

        .step-item {
            flex: 1;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 16px;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 45px;
            height: 45px;
            background: var(--gradient-primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            margin: 0 auto 20px;
        }

        .step-item h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--dark);
        }

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

        /* 对比评测 - 高饱和度强调 */
        .rating-box {
            background: linear-gradient(135deg, var(--dark) 0%, #1e1e2f 100%);
            color: #ffffff;
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            margin-bottom: 40px;
            border: 2px solid var(--primary);
        }

        .rating-stars {
            color: var(--accent);
            font-size: 2rem;
            margin-bottom: 10px;
        }

        .rating-score {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--secondary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .rating-score span {
            font-size: 1.5rem;
            color: #ffffff;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

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

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

        .compare-table th {
            background-color: #f1f5f9;
            font-weight: 700;
            color: var(--dark);
        }

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

        .compare-table tr.highlight {
            background-color: rgba(255, 0, 127, 0.03);
        }

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

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

        .token-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
        }

        .token-card.popular {
            border: 2px solid var(--primary);
            transform: scale(1.03);
        }

        .token-card.popular .popular-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--gradient-primary);
            color: #ffffff;
            padding: 4px 15px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: bold;
        }

        .token-price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            margin: 20px 0;
        }

        .token-price span {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 案例展示 - 使用真实的图片素材 */
        .portfolio-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 20px;
        }

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

        .portfolio-item {
            background: #ffffff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .portfolio-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
        }

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

        .portfolio-info {
            padding: 20px;
        }

        .portfolio-info h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--dark);
        }

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

        /* 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .training-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary);
            box-shadow: var(--card-shadow);
        }

        .training-card h3 {
            font-size: 1.25rem;
            color: var(--dark);
            margin-bottom: 15px;
            border-bottom: 2px solid var(--light-bg);
            padding-bottom: 10px;
        }

        .training-details {
            list-style: none;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .training-details li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .training-details li::before {
            content: "•";
            color: var(--primary);
            font-weight: bold;
        }

        /* 智能需求匹配与表单 */
        .matching-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .form-container {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

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

        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 0.95rem;
            transition: var(--transition);
            background-color: var(--light-bg);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #ffffff;
            box-shadow: 0 0 0 3px rgba(255, 0, 127, 0.15);
        }

        /* 常见用户问题 FAQ 折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: "+";
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            content: "−";
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background: #fafbfc;
        }

        .faq-item.active .faq-answer {
            max-height: 1000px;
            transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
        }

        .faq-answer-inner {
            padding: 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
        }

        /* 客户评论卡片 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 16px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .review-stars {
            color: var(--accent);
            margin-bottom: 15px;
            font-size: 1.1rem;
        }

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

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

        .author-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--gradient-cyan);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .author-info h4 {
            font-size: 0.95rem;
            color: var(--dark);
        }

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

        /* 行业资讯 & 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .news-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

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

        .news-card h3 {
            font-size: 0.95rem;
            color: var(--dark);
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .news-link {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
        }

        /* AI术语百科 & 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .tag-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: var(--transition);
            cursor: pointer;
        }

        .tag-item:hover {
            background: var(--gradient-cyan);
            color: #ffffff;
            border-color: transparent;
            transform: translateY(-2px);
        }

        /* 联络与加盟 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

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

        .contact-item {
            display: flex;
            gap: 15px;
        }

        .contact-icon {
            font-size: 1.5rem;
            color: var(--primary);
        }

        .contact-text h3 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 5px;
        }

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

        .qrcode-group {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 20px;
        }

        .qrcode-item {
            text-align: center;
            background: var(--light-bg);
            padding: 15px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .qrcode-item img {
            width: 120px;
            height: 120px;
            margin: 0 auto 10px;
            border-radius: 8px;
        }

        .qrcode-item p {
            font-size: 0.85rem;
            color: var(--dark);
            font-weight: 600;
        }

        .join-card {
            background: linear-gradient(135deg, var(--dark) 0%, #1e293b 100%);
            color: #ffffff;
            padding: 40px;
            border-radius: 24px;
            border: 2px solid var(--secondary);
        }

        .join-card h3 {
            font-size: 1.8rem;
            color: #ffffff;
            margin-bottom: 15px;
        }

        .join-card p {
            color: #94a3b8;
            font-size: 1rem;
            margin-bottom: 25px;
        }

        .join-benefits {
            list-style: none;
            margin-bottom: 30px;
        }

        .join-benefits li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }

        .join-benefits li::before {
            content: "✦";
            color: var(--secondary);
        }

        /* 友情链接 */
        .friend-links {
            background: #f1f5f9;
            padding: 20px 0;
            border-top: 1px solid var(--border-color);
        }

        .friend-links-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .friend-links-inner a {
            color: var(--text-muted);
        }

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

        /* 页脚 */
        footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

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

        .footer-brand h2 {
            color: #ffffff;
            margin-bottom: 15px;
        }

        .footer-links-col h3 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 20px;
        }

        .footer-links-col ul {
            list-style: none;
        }

        .footer-links-col ul li {
            margin-bottom: 10px;
        }

        .footer-links-col ul li a:hover {
            color: var(--secondary);
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* 浮动客服栏 */
        .floating-contact {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .float-btn .tooltip-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            text-align: center;
            width: 150px;
        }

        .float-btn .tooltip-qr img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }

        .float-btn .tooltip-qr p {
            color: var(--dark);
            font-size: 0.75rem;
            font-weight: bold;
        }

        .float-btn:hover .tooltip-qr {
            opacity: 1;
            visibility: visible;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .services-grid, .stats-grid, .training-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solutions-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .portfolio-grid {
                grid-template-columns: 1fr;
            }
            .contact-layout, .matching-layout, .about-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .news-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .stats-grid, .services-grid, .solutions-grid, .training-grid, .reviews-grid, .news-grid {
                grid-template-columns: 1fr;
            }

            .steps-container {
                flex-direction: column;
            }

            .token-grid {
                grid-template-columns: 1fr;
            }

            .token-card.popular {
                transform: none;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
            
            .qrcode-group {
                grid-template-columns: 1fr;
            }
        }