/* CSS 变量与撞色艳色风格设置 */
        :root {
            --primary: #4F46E5;
            --primary-hover: #4338CA;
            --accent-neon: #00F2FE; /* 亮青 */
            --accent-orange: #FF4B2B; /* 撞色橙 */
            --accent-yellow: #FAD961; /* 亮黄 */
            --bg-light: #F8FAFC;
            --bg-card: #FFFFFF;
            --text-main: #1E293B;
            --text-muted: #64748B;
            --border-color: #E2E8F0;
            --container-width: 1200px;
        }

        /* 基础样式重置 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: var(--accent-orange);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, .btn {
            cursor: pointer;
            border: none;
            outline: none;
            transition: all 0.3s ease;
        }

        /* 统一容器控制 */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* 导航条 */
        header {
            background-color: #1A1B2F; /* 深色背景与亮色内容形成强对比 */
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 3px solid var(--accent-orange);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ai-page-logo {
            max-height: 45px;
            width: auto;
        }
        .logo-text {
            color: #FFFFFF;
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: 1px;
        }
        .logo-text span {
            color: var(--accent-neon);
        }
        .nav-menu {
            display: flex;
            gap: 20px;
        }
        .nav-item {
            color: #E2E8F0;
            font-weight: 500;
            font-size: 0.95rem;
        }
        .nav-item:hover {
            color: var(--accent-neon);
        }
        .nav-btn {
            background: linear-gradient(135deg, var(--accent-orange), #FF416C);
            color: #FFFFFF;
            padding: 8px 18px;
            border-radius: 5px;
            font-weight: bold;
            font-size: 0.9rem;
        }
        .nav-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 4px 15px rgba(255, 75, 43, 0.4);
            color: #FFFFFF;
        }
        .nav-toggle {
            display: none;
            background: none;
            color: #FFF;
            font-size: 1.5rem;
        }

        /* 页面区块通用样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .section-title {
            text-align: center;
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 15px;
            color: #1A1B2F;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent-orange);
            margin: 10px auto 0;
            border-radius: 2px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 50px;
            font-size: 1.1rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 1. 首页 (Hero) - 无图片设计，极强科技撞色感 */
        .hero-section {
            background: radial-gradient(circle at 80% 20%, #2A1B4E 0%, #110B29 100%);
            color: #FFFFFF;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
            border-bottom: 5px solid var(--accent-neon);
        }
        .hero-content {
            max-width: 850px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 10;
        }
        .hero-tag {
            display: inline-block;
            background-color: rgba(255, 75, 43, 0.2);
            color: var(--accent-orange);
            border: 1px solid var(--accent-orange);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 25px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.3;
            margin-bottom: 25px;
            color: #FFFFFF;
        }
        .hero-title span {
            background: linear-gradient(to right, var(--accent-neon), var(--accent-yellow));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-description {
            font-size: 1.2rem;
            color: #CBD5E1;
            margin-bottom: 40px;
            line-height: 1.8;
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-orange), #FF416C);
            color: #FFFFFF;
            padding: 15px 35px;
            font-size: 1.1rem;
            font-weight: 700;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(255, 75, 43, 0.4);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(255, 75, 43, 0.6);
            color: #FFFFFF;
        }
        .btn-secondary {
            background: transparent;
            color: #FFFFFF;
            border: 2px solid #FFFFFF;
            padding: 13px 33px;
            font-size: 1.1rem;
            font-weight: 700;
            border-radius: 8px;
        }
        .btn-secondary:hover {
            background-color: #FFFFFF;
            color: #110B29;
            transform: translateY(-2px);
        }
        .hero-highlights {
            display: flex;
            justify-content: space-around;
            margin-top: 60px;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 40px;
            flex-wrap: wrap;
            gap: 20px;
        }
        .hero-highlight-item h3 {
            font-size: 2rem;
            color: var(--accent-neon);
            margin-bottom: 5px;
        }
        .hero-highlight-item p {
            color: #94A3B8;
            font-size: 0.95rem;
        }

        /* 2. 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: #1A1B2F;
        }
        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }
        .about-badge-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        .about-badge-item {
            background-color: var(--bg-card);
            border-left: 4px solid var(--primary);
            padding: 15px;
            border-radius: 0 8px 8px 0;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }
        .about-badge-item h4 {
            font-size: 1.1rem;
            margin-bottom: 5px;
        }
        .about-badge-item p {
            font-size: 0.9rem;
            margin: 0;
        }

        /* 3. 全平台AIGC服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .service-card {
            background-color: var(--bg-card);
            padding: 40px 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            transition: all 0.3s ease;
        }
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .service-card:hover::before {
            background: var(--accent-orange);
        }
        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            display: inline-block;
        }
        .service-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: #1A1B2F;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 支持的AI平台展示滚动条样式 */
        .platform-marquee-wrapper {
            margin-top: 40px;
            background-color: #1A1B2F;
            padding: 20px 0;
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--accent-neon);
        }
        .platform-title {
            text-align: center;
            color: #FFF;
            font-size: 1rem;
            margin-bottom: 15px;
            letter-spacing: 1px;
        }
        .platform-marquee {
            display: flex;
            gap: 30px;
            animation: marquee 25s linear infinite;
            width: max-content;
        }
        .platform-item {
            color: var(--accent-neon);
            font-weight: bold;
            font-size: 1.1rem;
            white-space: nowrap;
            background: rgba(255,255,255,0.05);
            padding: 5px 15px;
            border-radius: 4px;
        }
        @keyframes marquee {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* 4. 全自动AIGC制作流程 */
        .process-flow {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            position: relative;
        }
        .process-step {
            flex: 1;
            min-width: 200px;
            background-color: var(--bg-card);
            border: 2px solid var(--border-color);
            padding: 30px 20px;
            border-radius: 8px;
            text-align: center;
            position: relative;
        }
        .process-step:hover {
            border-color: var(--accent-orange);
        }
        .step-num {
            width: 40px;
            height: 40px;
            background-color: var(--accent-orange);
            color: #FFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin: 0 auto 20px;
        }
        .process-step h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 5. 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .solution-card {
            background-color: var(--bg-card);
            padding: 30px;
            border-radius: 8px;
            border-left: 5px solid var(--accent-neon);
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }
        .solution-card h4 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: #1A1B2F;
        }
        .solution-card ul li {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            position: relative;
            padding-left: 15px;
        }
        .solution-card ul li::before {
            content: '✓';
            color: var(--accent-orange);
            position: absolute;
            left: 0;
        }

        /* 6. 全国服务网络 */
        .network-section {
            background-color: #110B29;
            color: #FFF;
        }
        .network-section .section-title {
            color: #FFF;
        }
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .network-info h4 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--accent-neon);
        }
        .network-info p {
            color: #94A3B8;
            margin-bottom: 25px;
        }
        .network-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        .network-city {
            background: rgba(255,255,255,0.05);
            padding: 12px;
            border-radius: 4px;
            border-left: 3px solid var(--accent-orange);
            font-size: 0.95rem;
        }

        /* 7. 标准化服务全流程 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        .timeline::after {
            content: '';
            position: absolute;
            width: 4px;
            background-color: var(--border-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
        }
        .timeline-container {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }
        .timeline-container::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: #FFF;
            border: 4px solid var(--accent-orange);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }
        .left-timeline {
            left: 0;
        }
        .right-timeline {
            left: 50%;
        }
        .right-timeline::after {
            left: -10px;
        }
        .timeline-content {
            padding: 20px;
            background-color: var(--bg-card);
            position: relative;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }
        .timeline-content h4 {
            margin-bottom: 10px;
            color: #1A1B2F;
        }
        .timeline-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 8. 技术标准 */
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 25px;
        }
        .standard-item {
            background-color: var(--bg-card);
            padding: 25px;
            border-radius: 8px;
            border: 1px dashed var(--primary);
            text-align: center;
        }
        .standard-item h4 {
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .standard-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 9. 客户案例中心 - 含宣传图与横/方版图 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .case-card {
            background-color: var(--bg-card);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
        }
        .case-image-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .case-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .case-card:hover .case-image-wrap img {
            transform: scale(1.05);
        }
        .case-info {
            padding: 25px;
        }
        .case-tag {
            display: inline-block;
            background-color: rgba(79, 70, 229, 0.1);
            color: var(--primary);
            font-size: 0.8rem;
            padding: 3px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
            font-weight: bold;
        }
        .case-info h4 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: #1A1B2F;
        }
        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 10. 对比评测 - 突出推荐度 */
        .rating-box {
            background: linear-gradient(135deg, #1A1B2F, #2A1B4E);
            color: #FFF;
            padding: 30px;
            border-radius: 12px;
            text-align: center;
            margin-bottom: 40px;
            border: 2px solid var(--accent-orange);
        }
        .rating-score {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--accent-yellow);
        }
        .rating-stars {
            font-size: 1.5rem;
            color: var(--accent-orange);
            margin: 10px 0;
        }
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background-color: var(--bg-card);
            text-align: left;
            min-width: 600px;
        }
        th, td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
        }
        th {
            background-color: #1A1B2F;
            color: #FFF;
        }
        tr:nth-child(even) td {
            background-color: #F8FAFC;
        }
        .highlight-col {
            background-color: rgba(79, 70, 229, 0.05);
            font-weight: bold;
            color: var(--primary);
        }

        /* 11. 智能需求匹配与表单 */
        .form-section {
            background-color: #FFF;
        }
        .form-wrapper {
            max-width: 700px;
            margin: 0 auto;
            background-color: var(--bg-light);
            padding: 40px;
            border-radius: 12px;
            border-top: 5px solid var(--accent-orange);
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.95rem;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            background-color: #FFF;
            transition: border-color 0.3s ease;
        }
        .form-control:focus {
            border-color: var(--primary);
            outline: none;
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .form-btn {
            width: 100%;
            background: linear-gradient(135deg, var(--accent-orange), #FF416C);
            color: #FFF;
            padding: 15px;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(255, 75, 43, 0.3);
        }
        .form-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 75, 43, 0.5);
        }

        /* 12. Token比价参考 */
        .price-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
            margin-top: 30px;
        }
        .price-badge {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 0.95rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
            transition: all 0.3s ease;
        }
        .price-badge:hover {
            border-color: var(--accent-orange);
            transform: translateY(-2px);
        }
        .price-badge span {
            color: var(--accent-orange);
            font-weight: bold;
            margin-left: 5px;
        }

        /* 13 & 14. 职业与人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .training-card {
            background-color: var(--bg-card);
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.05);
            border-bottom: 4px solid var(--accent-neon);
        }
        .training-card h4 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: #1A1B2F;
        }
        .training-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .training-meta {
            background-color: var(--bg-light);
            padding: 10px;
            border-radius: 6px;
            font-size: 0.85rem;
            font-weight: bold;
        }

        /* 15. 帮助中心 */
        .help-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
        }
        .help-box {
            background-color: var(--bg-card);
            padding: 25px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            text-align: center;
        }
        .help-box h4 {
            margin-bottom: 10px;
            font-size: 1.1rem;
        }
        .help-box a {
            font-size: 0.9rem;
            font-weight: bold;
            color: var(--primary);
        }

        /* 16. 常见用户问题 FAQ (手风琴) */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            margin-bottom: 15px;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-question {
            padding: 20px;
            font-weight: bold;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: var(--bg-card);
            transition: background-color 0.3s ease;
        }
        .faq-question:hover {
            background-color: #F8FAFC;
        }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 0 solid var(--border-color);
        }
        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 300px;
            border-top-width: 1px;
        }
        .faq-icon::after {
            content: '+';
            font-size: 1.2rem;
            font-weight: bold;
        }
        .faq-item.active .faq-icon::after {
            content: '-';
        }

        /* 17. 常见问题自助排查 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        .troubleshoot-card {
            background-color: #FFF;
            padding: 25px;
            border-radius: 8px;
            border-left: 4px solid var(--accent-orange);
            box-shadow: 0 2px 10px rgba(0,0,0,0.03);
        }
        .troubleshoot-card h4 {
            color: #1A1B2F;
            margin-bottom: 10px;
        }
        .troubleshoot-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 18. 网站术语百科 */
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }
        .glossary-card {
            background-color: var(--bg-card);
            padding: 20px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }
        .glossary-card dt {
            font-weight: bold;
            color: var(--primary);
            margin-bottom: 5px;
        }
        .glossary-card dd {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-left: 0;
        }

        /* 19. 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .news-card {
            background-color: var(--bg-card);
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            padding: 25px;
            border-top: 3px solid var(--accent-orange);
        }
        .news-card h4 {
            font-size: 1.15rem;
            margin-bottom: 12px;
            color: #1A1B2F;
        }
        .news-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }
        .news-card a {
            font-size: 0.9rem;
            font-weight: bold;
        }

        /* 用户评论 */
        .reviews-section {
            background-color: var(--bg-light);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .review-card {
            background-color: var(--bg-card);
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.04);
            border-bottom: 4px solid var(--primary);
        }
        .review-text {
            font-style: italic;
            color: var(--text-main);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .author-info h4 {
            font-size: 1rem;
            margin-bottom: 2px;
        }
        .author-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 软件介绍 */
        .software-section {
            background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
        }
        .software-content {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .software-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .feature-box {
            background-color: #FFF;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.02);
            border-top: 3px solid var(--accent-neon);
        }
        .feature-box h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .feature-box p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 20. 联系我们与页脚 */
        .contact-wrapper {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }
        .contact-info-list {
            margin-top: 20px;
        }
        .contact-info-item {
            margin-bottom: 20px;
            font-size: 1.05rem;
        }
        .contact-info-item strong {
            color: var(--primary);
        }
        .qr-area {
            display: flex;
            gap: 30px;
            margin-top: 30px;
            flex-wrap: wrap;
        }
        .qr-item {
            text-align: center;
        }
        .qr-item img {
            width: 140px;
            height: 140px;
            border: 1px solid var(--border-color);
            padding: 5px;
            border-radius: 8px;
            background-color: #FFF;
            margin-bottom: 10px;
        }
        .qr-item p {
            font-size: 0.85rem;
            font-weight: bold;
        }

        footer {
            background-color: #110B29;
            color: #94A3B8;
            padding: 60px 0 20px;
            border-top: 3px solid var(--accent-orange);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo h3 {
            color: #FFF;
            margin-bottom: 15px;
        }
        .footer-logo p {
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .footer-links h4 {
            color: #FFF;
            margin-bottom: 15px;
            font-size: 1.1rem;
        }
        .footer-links ul li {
            margin-bottom: 10px;
        }
        .footer-links ul li a {
            color: #94A3B8;
            font-size: 0.9rem;
        }
        .footer-links ul li a:hover {
            color: var(--accent-neon);
        }
        .friendship-links {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            margin-bottom: 20px;
        }
        .friendship-links h5 {
            color: #FFF;
            margin-bottom: 10px;
        }
        .friendship-links-list {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }
        .friendship-links-list a {
            color: #94A3B8;
            font-size: 0.85rem;
            background: rgba(255,255,255,0.05);
            padding: 3px 8px;
            border-radius: 3px;
        }
        .friendship-links-list a:hover {
            color: var(--accent-neon);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
        }

        /* 浮动工具与客服 */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: #FFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            position: relative;
            cursor: pointer;
        }
        .float-btn.kefu {
            background-color: var(--accent-orange);
        }
        .float-btn:hover {
            transform: scale(1.1);
        }
        .float-qr-hover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: #FFF;
            border: 1px solid var(--border-color);
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: none;
        }
        .float-btn:hover .float-qr-hover {
            display: block;
        }
        .float-qr-hover img {
            width: 120px;
            height: 120px;
        }
        .back-to-top {
            background-color: #1A1B2F;
            display: none;
        }

        /* 移动端响应式样式 */
        @media (max-width: 992px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #1A1B2F;
                padding: 20px;
                border-bottom: 3px solid var(--accent-orange);
                gap: 15px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .about-grid, .network-grid, .contact-wrapper, .software-content {
                grid-template-columns: 1fr;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-container {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-container::after {
                left: 21px;
            }
            .right-timeline {
                left: 0;
            }
            .hero-title {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 576px) {
            .form-row {
                grid-template-columns: 1fr;
            }
            .hero-btns {
                flex-direction: column;
            }
        }