/* 亮橙炽艳风 基础样式 */
        :root {
            --primary: #FF5500;       /* 炽烈橙 */
            --primary-hover: #E63900; /* 亮橙偏红 */
            --secondary: #FF2E00;     /* 炽火红 */
            --dark: #121212;          /* 科技深灰黑 */
            --light-bg: #F9FAFB;      /* 浅灰白 */
            --white: #FFFFFF;
            --text-main: #2D3748;     /* 易读主字色 */
            --text-muted: #718096;
            --border-color: #E2E8F0;
            --shadow: 0 10px 30px rgba(0,0,0,0.05);
            --transition: all 0.3s ease;
        }

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

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

        /* 统一居中容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-header h2 {
            font-size: 2.2rem;
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
            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), var(--secondary));
            border-radius: 2px;
        }

        .section-header p {
            color: var(--text-muted);
            margin-top: 15px;
            font-size: 1.1rem;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            box-shadow: 0 4px 15px rgba(255, 85, 0, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 85, 0, 0.4);
        }

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

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

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            backdrop-filter: blur(10px);
        }

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

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

        .ai-page-logo {
            height: 40px;
            object-fit: contain;
        }

        .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu a {
            color: var(--text-main);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            font-size: 0.95rem;
            padding: 5px 10px;
        }

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

        .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: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* 1. Hero 首页区 - 严格禁止出现图片 */
        .hero-section {
            background: radial-gradient(circle at 10% 20%, rgba(255, 85, 0, 0.05) 0%, rgba(255, 46, 0, 0.02) 90%), var(--white);
            padding: 100px 0 80px;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background-color: rgba(255, 85, 0, 0.1);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
        }

        /* H1 标题控制在20字内 */
        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            margin-bottom: 25px;
            background: linear-gradient(135deg, var(--dark) 30%, var(--primary) 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: 1.7;
        }

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

        /* 2. 关于我们与平台介绍 */
        .about-section {
            background-color: var(--white);
        }

        .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(--primary);
        }

        .about-text p {
            color: var(--text-main);
            margin-bottom: 15px;
            font-size: 1.05rem;
        }

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

        .about-feat-item {
            background: var(--light-bg);
            padding: 20px;
            border-radius: 12px;
            border-left: 4px solid var(--primary);
        }

        .about-feat-item h4 {
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .about-feat-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            margin-top: 40px;
        }

        .stat-card {
            background: var(--light-bg);
            padding: 30px 20px;
            border-radius: 12px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1;
        }

        .stat-label {
            font-size: 1rem;
            color: var(--text-main);
            font-weight: 600;
        }

        .stat-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 5px;
        }

        /* 3. 全平台AIGC服务体系 & 4. 自动化制作流程 */
        .service-section {
            background-color: var(--light-bg);
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            border-radius: 16px;
            padding: 40px 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 85, 0, 0.2);
            box-shadow: 0 15px 35px rgba(255, 85, 0, 0.08);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background: rgba(255, 85, 0, 0.1);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 25px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }

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

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

        .service-tag {
            font-size: 0.8rem;
            background-color: var(--light-bg);
            color: var(--text-main);
            padding: 4px 10px;
            border-radius: 20px;
        }

        /* 流程步骤体系 */
        .flow-section {
            background-color: var(--white);
        }

        .flow-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .flow-node {
            position: relative;
            text-align: center;
            background: var(--light-bg);
            padding: 30px 20px;
            border-radius: 12px;
            border-top: 5px solid var(--primary);
        }

        .flow-step-num {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: -50px auto 20px;
            font-weight: 700;
            box-shadow: 0 4px 10px rgba(255, 85, 0, 0.3);
        }

        .flow-node h4 {
            margin-bottom: 10px;
            font-size: 1.15rem;
        }

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

        /* 模型聚合墙 */
        .model-wall {
            margin-top: 50px;
            text-align: center;
        }

        .model-wall h3 {
            margin-bottom: 25px;
            font-size: 1.3rem;
        }

        .model-tags-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .model-pill {
            background-color: var(--light-bg);
            border: 1px solid var(--border-color);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-main);
            transition: var(--transition);
        }

        .model-pill:hover {
            background-color: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }

        /* 5. 行业解决方案与 6. 服务网络 */
        .solutions-section {
            background-color: var(--light-bg);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            border-top: 4px solid var(--primary);
            box-shadow: var(--shadow);
        }

        .solution-card h4 {
            font-size: 1.25rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .solution-card ul {
            list-style: none;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .solution-card ul li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-card ul li::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }

        .network-wrap {
            margin-top: 60px;
            background: var(--white);
            border-radius: 16px;
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            box-shadow: var(--shadow);
            align-items: center;
        }

        .network-info h4 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .network-info p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .network-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
        }

        .network-city {
            background-color: var(--light-bg);
            padding: 12px;
            border-radius: 8px;
            text-align: center;
            font-weight: 600;
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }

        /* 8. 技术标准 */
        .tech-standards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-top: 30px;
        }

        .standard-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 25px;
            text-align: left;
        }

        .standard-card h4 {
            color: var(--primary);
            font-size: 1.15rem;
            margin-bottom: 10px;
        }

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

        /* 9. 客户案例中心 */
        .cases-section {
            background-color: var(--white);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--light-bg);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .case-img-wrap {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .case-body {
            padding: 25px;
        }

        .case-tag {
            display: inline-block;
            background: rgba(255, 85, 0, 0.1);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .case-body h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }

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

        /* 10. 对比评测 */
        .compare-section {
            background-color: var(--light-bg);
        }

        .rating-hero {
            background: linear-gradient(135deg, var(--dark), #2a1100);
            color: var(--white);
            border-radius: 16px;
            padding: 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            box-shadow: var(--shadow);
            flex-wrap: wrap;
            gap: 25px;
        }

        .rating-left h3 {
            color: var(--white);
            font-size: 1.8rem;
            margin-bottom: 10px;
        }

        .rating-left p {
            color: #CBD5E0;
        }

        .rating-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .rating-score {
            font-size: 4rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }

        .rating-stars {
            color: #FFB000;
            font-size: 1.5rem;
        }

        .compare-table-wrap {
            width: 100%;
            overflow-x: auto;
            background: var(--white);
            border-radius: 12px;
            box-shadow: var(--shadow);
        }

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

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

        table.compare-table th {
            background-color: #EDF2F7;
            font-weight: 700;
            color: var(--dark);
        }

        table.compare-table tr:hover {
            background-color: #F8FAFC;
        }

        table.compare-table td.highlight {
            color: var(--primary);
            font-weight: 600;
            background-color: rgba(255, 85, 0, 0.02);
        }

        /* 12. Token 比价参考 */
        .token-section {
            background-color: var(--white);
        }

        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .token-card {
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            background: var(--light-bg);
            transition: var(--transition);
        }

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

        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 15px;
            margin-bottom: 20px;
        }

        .token-name {
            font-size: 1.25rem;
            font-weight: 700;
        }

        .token-tag {
            background: var(--primary);
            color: var(--white);
            font-size: 0.75rem;
            padding: 3px 8px;
            border-radius: 4px;
        }

        .token-price {
            font-size: 2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .token-price span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        /* 13 & 14. 培训课程 */
        .train-section {
            background-color: var(--light-bg);
        }

        .train-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .train-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .train-header {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            padding: 25px;
            text-align: center;
        }

        .train-header h4 {
            color: var(--white);
            font-size: 1.25rem;
            margin-bottom: 5px;
        }

        .train-header p {
            font-size: 0.85rem;
            opacity: 0.9;
        }

        .train-body {
            padding: 30px;
        }

        .train-body ul {
            list-style: none;
            margin-bottom: 25px;
        }

        .train-body ul li {
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .train-body ul li::before {
            content: '●';
            color: var(--primary);
            font-size: 0.8rem;
        }

        /* 16. FAQ 折叠面板 */
        .faq-section {
            background-color: var(--white);
        }

        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 15px 20px;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

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

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--text-muted);
            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 ease-out;
            background-color: var(--light-bg);
            border-radius: 8px;
        }

        .faq-answer-inner {
            padding: 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* 自助排查与术语百科 */
        .troubleshoot-wrap {
            margin-top: 50px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .troubleshoot-box, .wiki-box {
            background: var(--light-bg);
            padding: 35px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .troubleshoot-box h4, .wiki-box h4 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        /* 11 & 20. 智能需求匹配与联系我们表单 */
        .contact-section {
            background-color: var(--light-bg);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1.8fr;
            gap: 50px;
            align-items: start;
        }

        .contact-info-card {
            background: var(--white);
            padding: 40px;
            border-radius: 16px;
            box-shadow: var(--shadow);
        }

        .contact-info-card h3 {
            font-size: 1.6rem;
            margin-bottom: 25px;
        }

        .contact-method {
            margin-bottom: 25px;
        }

        .contact-method h4 {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 5px;
        }

        .contact-method p {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
        }

        .qr-codes {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-top: 30px;
            text-align: center;
        }

        .qr-item {
            background: var(--light-bg);
            padding: 15px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        .qr-item img {
            width: 140px;
            height: 140px;
            object-fit: cover;
            margin-bottom: 8px;
            border-radius: 4px;
        }

        .qr-item span {
            display: block;
            font-size: 0.85rem;
            color: var(--text-main);
            font-weight: 600;
        }

        /* 表单样式 */
        .form-wrap {
            background: var(--white);
            padding: 40px;
            border-radius: 16px;
            box-shadow: var(--shadow);
        }

        .form-wrap h3 {
            font-size: 1.6rem;
            margin-bottom: 25px;
        }

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

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

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            outline: none;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.15);
        }

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
            background-size: 15px;
        }

        /* 客户评论卡片 */
        .reviews-section {
            background-color: var(--white);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--light-bg);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            position: relative;
        }

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

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .review-avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .review-info h5 {
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

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

        /* 19. 行业资讯 / 知识库 */
        .news-section {
            background-color: var(--light-bg);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

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

        .news-content {
            padding: 25px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .news-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-title a {
            color: var(--dark);
            text-decoration: none;
            transition: var(--transition);
        }

        .news-title a:hover {
            color: var(--primary);
        }

        .news-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .news-more {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: #E2E8F0;
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 50px;
            margin-bottom: 45px;
        }

        .footer-logo-area p {
            color: #A0AEC0;
            margin: 15px 0;
            line-height: 1.7;
        }

        .footer-links-area h4, .footer-contact-area h4 {
            color: var(--white);
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
        }

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

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

        .footer-links-area ul li a {
            color: #A0AEC0;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-contact-area p {
            margin-bottom: 12px;
            color: #A0AEC0;
        }

        .footer-bottom {
            border-top: 1px solid #2D3748;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-bottom p {
            color: #718096;
        }

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

        .friend-links a {
            color: #718096;
            text-decoration: none;
            transition: var(--transition);
        }

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

        /* 浮动客服栏 */
        .floating-service {
            position: fixed;
            right: 25px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--white);
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary);
            color: var(--white) !important;
            transform: translateY(-3px);
        }

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

        .float-btn.kefu-btn {
            color: var(--primary);
        }

        .float-btn.kefu-btn .qr-hover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--white);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            border: 1px solid var(--border-color);
        }

        .float-btn.kefu-btn .qr-hover img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border-radius: 4px;
            margin-bottom: 5px;
        }

        .float-btn.kefu-btn .qr-hover p {
            color: var(--dark);
            font-size: 0.8rem;
            white-space: nowrap;
        }

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

        .float-btn.top-btn {
            color: var(--text-muted);
            display: none;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .service-grid, .solutions-grid, .cases-grid, .token-grid, .train-grid, .reviews-grid, .news-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .flow-timeline {
                grid-template-columns: 1fr 1fr;
            }
            .flow-timeline::before {
                display: none;
            }
            .about-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                display: none;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-btn-group {
                display: none;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .service-grid, .solutions-grid, .cases-grid, .token-grid, .train-grid, .reviews-grid, .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .network-wrap {
                grid-template-columns: 1fr;
            }
            .network-list {
                grid-template-columns: 1fr 1fr;
            }
            .troubleshoot-wrap {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }