:root {
            --primary: #5c00ff;
            --primary-glow: rgba(92, 0, 255, 0.15);
            --secondary: #00f0ff;
            --accent: #ff007f;
            --dark: #0f172a;
            --light-bg: #f8fafc;
            --card-bg: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --neon-shadow: 0 0 20px rgba(92, 0, 255, 0.2);
        }

        * {
            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, "Apple Color Emoji", "Segoe UI Emoji";
            background-color: var(--light-bg);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

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

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

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

        .logo-text {
            font-weight: 800;
            font-size: 20px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu a {
            text-decoration: none;
            color: var(--text-main);
            font-weight: 500;
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white !important;
            padding: 8px 16px;
            border-radius: 30px;
            box-shadow: 0 4px 10px rgba(92, 0, 255, 0.2);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(92, 0, 255, 0.3);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-main);
        }

        /* Hero 区域 (无图片) */
        .hero {
            padding: 100px 0 80px 0;
            background: radial-gradient(circle at 80% 20%, rgba(0, 240, 255, 0.08), transparent 40%),
                        radial-gradient(circle at 10% 80%, rgba(255, 0, 127, 0.08), transparent 40%),
                        #ffffff;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--secondary), var(--accent), transparent);
        }

        .badge-premium {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(92, 0, 255, 0.06);
            border: 1px solid rgba(92, 0, 255, 0.2);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 20px;
            background: linear-gradient(135deg, #1e1b4b, var(--primary) 60%, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p.lead {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 35px auto;
        }

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

        .btn-glow {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            font-weight: 600;
            text-decoration: none;
            padding: 14px 32px;
            border-radius: 30px;
            box-shadow: 0 4px 20px rgba(255, 0, 127, 0.25);
            transition: transform 0.2s, box-shadow 0.2s;
            font-size: 16px;
        }

        .btn-glow:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 0, 127, 0.4);
        }

        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
            padding: 12px 30px;
            border-radius: 30px;
            transition: background 0.3s, color 0.3s;
            font-size: 16px;
        }

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

        /* 核心数据卡片 */
        .stats-section {
            padding: 40px 0;
            margin-top: -30px;
            position: relative;
            z-index: 10;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: white;
            padding: 24px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
            text-align: center;
            transition: transform 0.3s;
        }

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

        .stat-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 通用标题 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header span {
            color: var(--accent);
            text-transform: uppercase;
            font-weight: 700;
            font-size: 12px;
            letter-spacing: 2px;
            display: block;
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--dark);
        }

        .section-padding {
            padding: 80px 0;
        }

        /* 关于我们 */
        .about-section {
            background-color: #ffffff;
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
        }

        .channel-info {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 25px;
        }

        .channel-item {
            background-color: var(--light-bg);
            padding: 15px;
            border-radius: 8px;
            border-left: 3px solid var(--secondary);
        }

        .channel-item strong {
            display: block;
            margin-bottom: 4px;
            color: var(--dark);
            font-size: 14px;
        }

        .channel-item span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* AIGC 服务 */
        .services-section {
            background-color: var(--light-bg);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-bottom: 40px;
        }

        .service-card {
            background: white;
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity 0.3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(92, 0, 255, 0.05);
            border-color: rgba(92, 0, 255, 0.15);
        }

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

        .service-icon {
            font-size: 32px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 15px;
        }

        .service-tag {
            display: inline-block;
            font-size: 11px;
            background: rgba(92, 0, 255, 0.05);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 平台云 */
        .platform-cloud {
            text-align: center;
            background: white;
            padding: 40px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .platform-cloud h4 {
            font-size: 16px;
            margin-bottom: 25px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        .tag-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .tag-pill {
            background-color: var(--light-bg);
            color: var(--text-main);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            border: 1px solid var(--border-color);
            transition: all 0.2s;
        }

        .tag-pill:hover {
            background-color: var(--primary);
            color: white;
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 一站式制作 */
        .onestop-section {
            background: white;
        }

        .features-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 40px;
        }

        .feature-item {
            background-color: var(--light-bg);
            padding: 24px;
            border-radius: 8px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .feature-icon-wrapper {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .feature-desc h4 {
            margin-bottom: 8px;
            font-size: 16px;
            color: var(--dark);
        }

        .feature-desc p {
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .sol-card {
            background: white;
            border-radius: 8px;
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }

        .sol-card:hover {
            border-color: var(--accent);
            box-shadow: 0 5px 15px rgba(255, 0, 127, 0.05);
        }

        .sol-card h4 {
            font-size: 16px;
            margin-bottom: 10px;
            color: var(--dark);
            border-bottom: 2px solid var(--light-bg);
            padding-bottom: 10px;
        }

        .sol-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .network-section {
            background-color: #ffffff;
            border-top: 1px solid var(--border-color);
        }

        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

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

        .city-tag {
            background-color: var(--light-bg);
            border: 1px solid var(--border-color);
            padding: 10px;
            border-radius: 6px;
            text-align: center;
            font-size: 13px;
            font-weight: 500;
        }

        /* 标准化流程 Timeline */
        .workflow-section {
            background-color: var(--light-bg);
        }

        .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: 16px;
            height: 16px;
            right: -8px;
            background-color: white;
            border: 4px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }

        .left {
            left: 0;
        }

        .right {
            left: 50%;
        }

        .right::after {
            left: -8px;
        }

        .timeline-content {
            padding: 20px;
            background-color: white;
            position: relative;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
        }

        .timeline-content h3 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .timeline-content p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 客户案例 (带图片) */
        .cases-section {
            background-color: #ffffff;
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .case-card {
            background: var(--light-bg);
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .case-img-box {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background-color: #e2e8f0;
        }

        .case-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s;
        }

        .case-card:hover .case-img-box img {
            transform: scale(1.05);
        }

        .case-body {
            padding: 15px;
        }

        .case-body h4 {
            font-size: 15px;
            margin-bottom: 5px;
            color: var(--dark);
        }

        .case-body p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 评测对比 */
        .review-section {
            background-color: var(--light-bg);
        }

        .rating-box {
            text-align: center;
            margin-bottom: 40px;
            background: white;
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            display: flex;
            justify-content: space-around;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .rating-item h3 {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 5px;
        }

        .rating-val {
            font-size: 40px;
            font-weight: 800;
            color: var(--accent);
        }

        .stars {
            font-size: 24px;
            color: #fbbf24;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background: white;
        }

        .review-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

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

        .review-table th {
            background-color: #f1f5f9;
            color: var(--dark);
            font-weight: 600;
        }

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

        .highlight-col {
            background-color: rgba(92, 0, 255, 0.02);
            font-weight: 600;
            color: var(--primary);
        }

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

        /* Token 比价与加盟 */
        .pricing-section {
            background-color: #ffffff;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 30px;
        }

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

        .price-compare-card h3 {
            margin-bottom: 20px;
            font-size: 18px;
        }

        .token-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .token-row {
            display: flex;
            justify-content: space-between;
            background: white;
            padding: 12px 20px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }

        .token-row span:nth-child(2) {
            color: #10b981;
            font-weight: 600;
        }

        .agent-card {
            background: linear-gradient(135deg, #1e1b4b, var(--primary));
            color: white;
            border-radius: 12px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            overflow: hidden;
        }

        .agent-card::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -20%;
            width: 150px;
            height: 150px;
            background: var(--secondary);
            opacity: 0.1;
            border-radius: 50%;
            filter: blur(20px);
        }

        .agent-card h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--secondary);
        }

        .agent-card p {
            font-size: 14px;
            opacity: 0.9;
            margin-bottom: 25px;
        }

        .agent-btn {
            background-color: white;
            color: var(--primary);
            text-align: center;
            padding: 12px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            transition: transform 0.2s;
        }

        .agent-btn:hover {
            transform: translateY(-2px);
        }

        /* 职业技术培训 */
        .training-section {
            background-color: var(--light-bg);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }

        .training-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            transition: all 0.3s;
        }

        .training-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.02);
        }

        .training-card h4 {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }

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

        /* AI术语百科 */
        .encyclopedia-section {
            background-color: #ffffff;
        }

        .encyclopedia-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .term-card {
            padding: 20px;
            background: var(--light-bg);
            border-radius: 8px;
            border-left: 4px solid var(--primary);
        }

        .term-card h4 {
            font-size: 15px;
            color: var(--dark);
            margin-bottom: 8px;
        }

        .term-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* FAQ Section */
        .faq-section {
            background-color: var(--light-bg);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

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

        .faq-quest {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 15px;
            user-select: none;
            color: var(--dark);
            transition: background 0.3s;
        }

        .faq-quest:hover {
            background-color: #fafafa;
        }

        .faq-quest::after {
            content: '+';
            font-size: 20px;
            color: var(--primary);
            transition: transform 0.3s;
        }

        .faq-item.active .faq-quest::after {
            content: '-';
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: #fafafa;
        }

        .faq-answer p {
            padding: 18px 24px;
            font-size: 14px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            line-height: 1.6;
        }

        /* 用户评论 */
        .reviews-section {
            background-color: #ffffff;
        }

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

        .review-user-card {
            background: var(--light-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
        }

        .user-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 18px;
        }

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

        .user-info span {
            font-size: 11px;
            color: var(--text-muted);
        }

        .user-comment {
            font-size: 13px;
            color: var(--text-main);
            line-height: 1.5;
        }

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

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

        .news-card {
            background: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .news-body {
            padding: 20px;
        }

        .news-body h3 {
            font-size: 15px;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .news-body h3 a {
            color: var(--dark);
            text-decoration: none;
            transition: color 0.2s;
        }

        .news-body h3 a:hover {
            color: var(--primary);
        }

        .news-body p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .news-footer {
            padding: 12px 20px;
            background-color: var(--light-bg);
            border-top: 1px solid var(--border-color);
            font-size: 11px;
            color: var(--text-muted);
        }

        /* 联系我们 & 需求匹配表单 */
        .contact-section {
            background-color: #ffffff;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info-panel {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }

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

        .contact-detail-icon {
            font-size: 20px;
            color: var(--primary);
        }

        .contact-detail-text h4 {
            font-size: 15px;
            margin-bottom: 4px;
            color: var(--dark);
        }

        .contact-detail-text p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .contact-qrcode {
            margin-top: 20px;
            background: var(--light-bg);
            padding: 20px;
            border-radius: 8px;
            display: inline-flex;
            gap: 15px;
            align-items: center;
            border: 1px solid var(--border-color);
            max-width: 320px;
        }

        .contact-qrcode img {
            width: 80px;
            height: 80px;
            border-radius: 4px;
            object-fit: cover;
        }

        .qrcode-info h5 {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 4px;
        }

        .qrcode-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

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

        .form-group {
            margin-bottom: 15px;
        }

        .form-label {
            display: block;
            margin-bottom: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            background-color: white;
            color: var(--dark);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(92, 0, 255, 0.1);
        }

        .btn-submit {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            width: 100%;
            transition: opacity 0.2s;
        }

        .btn-submit:hover {
            opacity: 0.9;
        }

        /* 友情链接与底部 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: white;
            margin-bottom: 20px;
            font-size: 15px;
            font-weight: 600;
        }

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

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

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.2s;
        }

        .footer-links a:hover {
            color: white;
        }

        .friendship-links-section {
            border-top: 1px solid #1e293b;
            padding: 20px 0;
            margin-bottom: 20px;
        }

        .friendship-links-title {
            color: white;
            font-size: 13px;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .friendship-links-container a {
            color: #64748b;
            text-decoration: none;
            font-size: 12px;
            margin-right: 15px;
            display: inline-block;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
        }

        /* 悬浮客服窗 */
        .floating-widget {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .floating-item {
            width: 48px;
            height: 48px;
            background: white;
            border-radius: 50%;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            color: var(--primary);
            position: relative;
            cursor: pointer;
            border: 1px solid var(--border-color);
        }

        .floating-item svg {
            width: 20px;
            height: 20px;
            fill: currentColor;
        }

        .floating-popover {
            position: absolute;
            right: 60px;
            background: white;
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: none;
            width: 200px;
            text-align: center;
        }

        .floating-popover img {
            width: 100px;
            height: 100px;
            object-fit: cover;
            margin-bottom: 8px;
        }

        .floating-popover p {
            font-size: 11px;
            color: var(--text-muted);
        }

        .floating-item:hover .floating-popover {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .services-grid, .solutions-grid, .encyclopedia-grid, .reviews-grid, .news-list, .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: white;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .hero h1 {
                font-size: 32px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .network-grid, .pricing-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-container {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-container::after {
                left: 23px;
            }
            .right {
                left: 0%;
            }
            .services-grid, .solutions-grid, .encyclopedia-grid, .reviews-grid, .news-list, .footer-grid, .cases-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }