:root {
            --primary: #FF2A7A;
            --primary-hover: #E01E63;
            --primary-light: #FFF0F5;
            --dark: #1E1B1C;
            --gray-dark: #4A4547;
            --gray-light: #F7F3F5;
            --border-color: #EAE0E3;
            --white: #FFFFFF;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --shadow-sm: 0 2px 8px rgba(255, 42, 122, 0.05);
            --shadow-md: 0 8px 24px rgba(255, 42, 122, 0.08);
            --shadow-lg: 0 16px 32px rgba(255, 42, 122, 0.12);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--white);
            color: var(--dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 统一布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 标题规范 */
        h1, h2, h3, h4 {
            color: var(--dark);
            font-weight: 700;
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-header h2 {
            font-size: 32px;
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
            color: var(--dark);
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), #FF75A0);
            border-radius: 2px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--gray-dark);
            margin-top: 16px;
        }

        /* 顶部导航 */
        header.nav-header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 70px;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }

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

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

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

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

        nav.nav-menu a {
            text-decoration: none;
            color: var(--gray-dark);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: 6px;
        }

        nav.nav-menu a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary) 0%, #FF5E97 100%);
            color: var(--white) !important;
            padding: 8px 18px !important;
            border-radius: 20px !important;
            box-shadow: var(--shadow-sm);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

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

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

        /* Hero首屏 - 严格无图片 */
        .hero-section {
            padding: 160px 0 100px 0;
            background: radial-gradient(circle at 90% 10%, var(--primary-light) 0%, var(--white) 60%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-badge {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 42, 122, 0.2);
        }

        .hero-section h1 {
            font-size: 44px;
            line-height: 1.25;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--dark) 30%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-lead {
            font-size: 18px;
            color: var(--gray-dark);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

        .hero-btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            align-items: center;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, #FF5E97 100%);
            color: var(--white);
            text-decoration: none;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(255, 42, 122, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 42, 122, 0.4);
        }

        .btn-secondary {
            background-color: var(--white);
            color: var(--dark);
            text-decoration: none;
            padding: 14px 32px;
            border-radius: 30px;
            font-weight: 600;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-light);
        }

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

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

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

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--gray-dark);
            font-weight: 500;
        }

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

        section:nth-child(even) {
            background-color: var(--gray-light);
        }

        /* 关于我们 */
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            margin-bottom: 16px;
        }

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

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

        .about-feat-item {
            background: var(--white);
            padding: 16px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .about-feat-item h4 {
            color: var(--primary);
            font-size: 16px;
            margin-bottom: 8px;
        }

        .about-feat-item p {
            font-size: 13px;
            margin: 0;
        }

        .about-image-wrapper {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        /* 全平台AIGC服务体系 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 32px;
            transition: var(--transition);
            position: relative;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary);
            font-size: 20px;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--gray-dark);
            font-size: 14px;
            margin-bottom: 16px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .service-tags span {
            background-color: var(--gray-light);
            color: var(--dark);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 4px;
        }

        /* 制作流程 & 时间线 */
        .workflow-timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .workflow-timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 100%;
            background-color: var(--border-color);
            top: 0;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 40px;
            width: 50%;
            padding-right: 40px;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            margin-left: 50%;
            padding-right: 0;
            padding-left: 40px;
            text-align: left;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            right: -10px;
            top: 4px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background-color: var(--white);
            border: 4px solid var(--primary);
            z-index: 1;
        }

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

        .timeline-content {
            background-color: var(--white);
            padding: 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .timeline-step {
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 8px;
            display: block;
        }

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

        .solution-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            transition: var(--transition);
        }

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

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

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

        /* 案例中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            background-color: var(--white);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            background-color: var(--gray-light);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

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

        .case-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .case-info p {
            color: var(--gray-dark);
            font-size: 13px;
            margin-bottom: 12px;
        }

        .case-meta {
            font-size: 12px;
            color: var(--primary);
            font-weight: 600;
        }

        /* 全国服务网络 & 流程 */
        .network-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .network-text ul {
            list-style: none;
            margin-top: 20px;
        }

        .network-text li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            font-size: 15px;
        }

        .network-text li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        .network-map-sim {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow-md);
        }

        .network-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 20px;
        }

        .network-tags span {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
        }

        /* 技术标准 */
        .standards-table-wrapper {
            overflow-x: auto;
            background: var(--white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .standards-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .standards-table th, .standards-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .standards-table th {
            background-color: var(--gray-light);
            color: var(--dark);
            font-weight: 600;
        }

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

        /* 对比评测 - 突出推荐与评分 */
        .evaluation-box {
            background: linear-gradient(135deg, var(--white) 0%, var(--primary-light) 100%);
            border: 2px solid var(--primary);
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--shadow-lg);
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            align-items: center;
        }

        .score-display {
            text-align: center;
            border-right: 1px solid var(--border-color);
            padding-right: 40px;
        }

        .score-num {
            font-size: 72px;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }

        .score-max {
            font-size: 20px;
            color: var(--gray-dark);
        }

        .stars {
            color: #FFB800;
            font-size: 28px;
            margin: 12px 0;
        }

        .score-label {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
        }

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

        .eval-detail-card {
            background: var(--white);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .eval-detail-card h4 {
            color: var(--primary);
            margin-bottom: 8px;
        }

        /* 智能需求匹配与表单 */
        .form-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
        }

        .form-info h3 {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .form-info p {
            color: var(--gray-dark);
            margin-bottom: 24px;
        }

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

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 14px;
        }

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

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 42, 122, 0.1);
        }

        /* Token比价 */
        .token-comparison-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        .token-card.popular {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .token-card.popular::before {
            content: '超值推荐';
            position: absolute;
            top: 12px;
            right: 12px;
            background-color: var(--primary);
            color: var(--white);
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 12px;
            font-weight: 600;
        }

        .token-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .token-price {
            font-size: 28px;
            color: var(--primary);
            font-weight: 700;
            margin: 16px 0;
        }

        .token-price span {
            font-size: 14px;
            color: var(--gray-dark);
            font-weight: normal;
        }

        .token-features {
            list-style: none;
            padding: 0;
            margin: 20px 0;
            text-align: left;
        }

        .token-features li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 13px;
            color: var(--gray-dark);
        }

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

        .training-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            text-align: center;
            transition: var(--transition);
        }

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

        .training-card h3 {
            font-size: 15px;
            margin-bottom: 8px;
            color: var(--dark);
        }

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

        /* FAQ折叠面板 */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            background-color: var(--white);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-question:hover {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--white);
        }

        .faq-answer-inner {
            padding: 0 24px 20px 24px;
            color: var(--gray-dark);
            font-size: 14px;
            border-top: 1px solid var(--border-color);
            margin-top: -1px;
        }

        .faq-icon {
            transition: transform 0.3s;
            font-weight: bold;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
        }

        /* 自助排查与术语百科 */
        .help-center-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .help-box {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
        }

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

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

        .help-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .help-list h4 {
            font-size: 14px;
            margin-bottom: 6px;
        }

        .help-list p {
            font-size: 12px;
            color: var(--gray-dark);
        }

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

        .review-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

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

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

        .review-user-info h4 {
            font-size: 14px;
            color: var(--dark);
        }

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

        /* 最新文章 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .article-card {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 16px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

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

        .article-card h3 {
            font-size: 14px;
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .article-card h3 a {
            text-decoration: none;
            color: var(--dark);
            transition: var(--transition);
        }

        .article-card h3 a:hover {
            color: var(--primary);
        }

        .article-btn {
            font-size: 12px;
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
        }

        /* 联系我们 & 二维码展示 */
        .contact-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .contact-info-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .contact-item {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
        }

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

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

        .contact-qr-wrapper {
            background-color: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow-md);
        }

        .contact-qr-wrapper img {
            max-width: 150px;
            height: auto;
            margin: 16px 0;
            border-radius: 8px;
        }

        .contact-qr-wrapper p {
            font-size: 14px;
            font-weight: 600;
        }

        /* 页脚规范与友情链接 */
        footer.site-footer {
            background-color: var(--dark);
            color: #C0BABC;
            padding: 60px 0 30px 0;
            font-size: 14px;
            border-top: none;
        }

        footer.site-footer .container {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
        }

        .footer-brand h3 {
            color: var(--white);
            margin-bottom: 16px;
            font-size: 20px;
        }

        .footer-links-col h4 {
            color: var(--white);
            margin-bottom: 16px;
            font-size: 16px;
        }

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

        .footer-links-col li {
            margin-bottom: 8px;
        }

        .footer-links-col a {
            color: #C0BABC;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .friend-links-area {
            border-top: 1px solid #332E30;
            padding-top: 24px;
        }

        .friend-links-area h4 {
            color: var(--white);
            margin-bottom: 12px;
            font-size: 14px;
        }

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

        .friend-links-list a {
            color: #C0BABC;
            text-decoration: none;
            font-size: 13px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid #332E30;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
        }

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

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: var(--white);
            border-radius: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(255, 42, 122, 0.3);
            transition: var(--transition);
            font-size: 18px;
            cursor: pointer;
            border: none;
        }

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

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: 1fr 1fr;
            }
            .solutions-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cases-grid {
                grid-template-columns: 1fr 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            nav.nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: var(--shadow-md);
            }
            nav.nav-menu.active {
                display: flex;
            }
            .hero-section h1 {
                font-size: 32px;
            }
            .about-layout, .form-layout, .network-layout, .evaluation-box, .help-center-layout, .contact-layout {
                grid-template-columns: 1fr;
            }
            .evaluation-box {
                padding: 20px;
            }
            .score-display {
                border-right: none;
                border-bottom: 1px solid var(--border-color);
                padding-right: 0;
                padding-bottom: 20px;
            }
            .workflow-timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 40px;
                padding-right: 0;
                text-align: left;
            }
            .timeline-item:nth-child(even) {
                margin-left: 0;
            }
            .timeline-item::after, .timeline-item:nth-child(even)::after {
                left: 10px;
            }
            .services-grid, .cases-grid, .token-comparison-grid, .reviews-grid, .articles-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }