:root {
            --primary: #FF5500;
            --primary-hover: #E04B00;
            --primary-light: #FFF0E8;
            --dark: #1A1A1A;
            --gray-dark: #333333;
            --gray-light: #F9FAFB;
            --border-color: #EAEAEA;
            --max-width: 1200px;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        ul {
            list-style: none;
        }

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

        /* 布局容器 */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 公共间距与标题 */
        section {
            padding: 80px 0;
            background-color: #ffffff;
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .section-header span {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            display: block;
            margin-bottom: 10px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--dark);
            font-weight: 700;
            position: relative;
            padding-bottom: 15px;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 4px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 6px;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(255, 85, 0, 0.3);
        }

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

        .btn-outline:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 头部导航 */
        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;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            height: 45px;
        }

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

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

        .nav-item {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--gray-dark);
            padding: 5px 0;
            position: relative;
        }

        .nav-item::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.3s ease;
        }

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

        .nav-item:hover::after {
            width: 100%;
        }

        .nav-btn {
            background-color: var(--primary);
            color: #ffffff !important;
            padding: 8px 18px;
            border-radius: 4px;
            font-weight: 600;
            font-size: 0.9rem;
        }

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

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

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            transition: all 0.3s ease;
        }

        /* 首页 Hero 区域 (无图片) */
        .hero {
            background: linear-gradient(135deg, #1A1A1A 0%, #2A2A2A 50%, #3D1C0A 100%);
            color: #ffffff;
            padding: 100px 0 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
            border-bottom: none;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,85,0,0.1) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-tag {
            background-color: rgba(255, 85, 0, 0.15);
            border: 1px solid var(--primary);
            color: #FF8844;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            color: #ffffff;
        }

        .hero h1 span {
            background: linear-gradient(to right, #FF8800, #FF3300);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.15rem;
            color: #CCCCCC;
            max-width: 800px;
            margin: 0 auto 35px auto;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
        }

        .hero-buttons .btn {
            min-width: 160px;
        }

        .hero-btn-main {
            background-color: var(--primary);
            color: #ffffff;
            font-size: 1.1rem;
        }

        .hero-btn-main:hover {
            background-color: var(--primary-hover);
        }

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

        .stat-card {
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 20px;
            backdrop-filter: blur(5px);
            transition: transform 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 85, 0, 0.4);
        }

        .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.85rem;
            color: #AAAAAA;
        }

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

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

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

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

        .p-feat-item {
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }

        .p-feat-item span {
            color: var(--primary);
            font-weight: bold;
        }

        .about-graphic {
            background: linear-gradient(135deg, var(--primary-light) 0%, #FFE8DC 100%);
            border-radius: 15px;
            padding: 40px;
            border-left: 5px solid var(--primary);
        }

        .graphic-box h4 {
            font-size: 1.4rem;
            color: var(--dark);
            margin-bottom: 15px;
        }

        .graphic-list li {
            padding: 10px 0;
            border-bottom: 1px dashed rgba(0,0,0,0.1);
            font-size: 0.95rem;
        }

        /* 全平台AIGC服务 */
        .model-cloud {
            text-align: center;
        }

        .model-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }

        .model-tag {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--gray-dark);
            transition: all 0.2s ease;
        }

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

        /* 一站式AIGC制作 & 全行业解决方案 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 30px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border-color: var(--primary);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--primary);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

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

        .service-card h3 {
            font-size: 1.3rem;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .service-card p {
            font-size: 0.9rem;
            color: #666666;
        }

        /* 全行业解决方案标签面板 */
        .solutions-container {
            margin-top: 30px;
        }

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

        .solution-item {
            background-color: #ffffff;
            padding: 25px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            text-align: center;
        }

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

        .solution-item p {
            font-size: 0.88rem;
            color: #666666;
        }

        /* 全国服务网络 & 时间线 */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .timeline {
            position: relative;
            padding-left: 30px;
            border-left: 2px solid var(--border-color);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 30px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -37px;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 3px solid #ffffff;
        }

        .timeline-date {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .timeline-title {
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .timeline-desc {
            font-size: 0.9rem;
            color: #666666;
        }

        /* 标准化AIGC流程 & 技术标准 */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .step-item {
            text-align: center;
            position: relative;
        }

        .step-number {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 1.3rem;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px auto;
            border: 2px solid var(--primary);
        }

        .step-item h4 {
            font-size: 0.95rem;
            margin-bottom: 5px;
            color: var(--dark);
        }

        .step-item p {
            font-size: 0.8rem;
            color: #888888;
        }

        /* 对比评测 - 9.9分推荐 */
        .rating-banner {
            background-color: var(--primary-light);
            border: 1px solid rgba(255, 85, 0, 0.2);
            border-radius: 8px;
            padding: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
        }

        .rating-title h3 {
            font-size: 1.5rem;
            color: var(--dark);
        }

        .rating-title p {
            color: #666666;
            margin-top: 5px;
        }

        .rating-stars {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .stars {
            color: #FFB800;
            font-size: 1.8rem;
        }

        .score-box {
            background-color: var(--primary);
            color: #ffffff;
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 800;
            font-size: 1.6rem;
            text-align: center;
        }

        .score-box span {
            font-size: 0.9rem;
            font-weight: normal;
        }

        .comparison-table-wrapper {
            width: 100%;
            overflow-x: auto;
        }

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

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

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

        .comparison-table td strong {
            color: var(--primary);
        }

        .comparison-table tr:hover {
            background-color: rgba(255, 85, 0, 0.02);
        }

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

        .token-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 25px;
            text-align: center;
        }

        .token-card h4 {
            font-size: 1.2rem;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 1.8rem;
            color: var(--primary);
            font-weight: 700;
            margin: 15px 0;
        }

        .token-price span {
            font-size: 0.9rem;
            color: #888888;
            font-weight: normal;
        }

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

        .training-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 25px;
            transition: all 0.3s ease;
        }

        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 8px 25px rgba(0,0,0,0.05);
        }

        .training-badge {
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 0.8rem;
            padding: 4px 10px;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 15px;
            font-weight: 600;
        }

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

        .training-card p {
            font-size: 0.9rem;
            color: #666666;
            margin-bottom: 15px;
        }

        /* 客户案例中心 (包含横版与方版图) */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: #ffffff;
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .case-img-wrap {
            position: relative;
            background-color: #F0F0F0;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

        .case-img-wrap.square {
            aspect-ratio: 1 / 1;
        }

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

        .case-content {
            padding: 20px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }

        .case-content h4 {
            font-size: 1.1rem;
            color: var(--dark);
            margin-bottom: 10px;
        }

        .case-content p {
            font-size: 0.85rem;
            color: #666666;
        }

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

        .review-card {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 25px;
            position: relative;
        }

        .review-stars {
            color: #FFB800;
            font-size: 1rem;
            margin-bottom: 15px;
        }

        .review-content {
            font-size: 0.9rem;
            color: var(--gray-dark);
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .user-info h5 {
            font-size: 0.95rem;
            color: var(--dark);
        }

        .user-info span {
            font-size: 0.8rem;
            color: #888888;
        }

        /* 常见问题自助排查 & AI术语百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .t-box h3 {
            font-size: 1.4rem;
            color: var(--dark);
            margin-bottom: 20px;
            border-left: 4px solid var(--primary);
            padding-left: 10px;
        }

        .t-list li {
            margin-bottom: 15px;
        }

        .t-list strong {
            display: block;
            font-size: 0.95rem;
            color: var(--dark);
            margin-bottom: 5px;
        }

        .t-list p {
            font-size: 0.88rem;
            color: #666666;
        }

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

        .faq-item {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            margin-bottom: 15px;
            border-radius: 6px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-header {
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-header h3 {
            font-size: 1rem;
            color: var(--dark);
            font-weight: 600;
        }

        .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background-color: var(--gray-light);
        }

        .faq-content p {
            padding: 20px;
            font-size: 0.9rem;
            color: #666666;
            border-top: 1px solid var(--border-color);
        }

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

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

        /* 行业资讯 / 知识库 (文章) */
        .articles-section {
            background-color: #ffffff;
        }

        .articles-list {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .article-card {
            background-color: var(--gray-light);
            border-radius: 6px;
            padding: 20px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 180px;
        }

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

        .article-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 15px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-link {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* 智能需求匹配与联系我们 (表单) */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info-panel {
            background-color: var(--dark);
            color: #ffffff;
            padding: 40px;
            border-radius: 12px;
            position: relative;
        }

        .contact-info-panel h3 {
            font-size: 1.8rem;
            margin-bottom: 25px;
            color: #ffffff;
        }

        .info-list li {
            margin-bottom: 20px;
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }

        .info-icon {
            color: var(--primary);
            font-size: 1.2rem;
        }

        .info-text strong {
            display: block;
            font-size: 0.85rem;
            color: #AAAAAA;
        }

        .info-text p, .info-text a {
            font-size: 1rem;
            color: #ffffff;
        }

        .qr-area {
            margin-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 25px;
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .qr-box {
            width: 100px;
            height: 100px;
            background-color: #ffffff;
            padding: 5px;
            border-radius: 4px;
        }

        .qr-box img {
            width: 100%;
            height: 100%;
        }

        .qr-desc h4 {
            font-size: 0.95rem;
            margin-bottom: 5px;
        }

        .qr-desc p {
            font-size: 0.8rem;
            color: #CCCCCC;
        }

        .form-panel {
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.95rem;
            color: var(--dark);
            background-color: var(--gray-light);
            transition: all 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #ffffff;
            box-shadow: 0 0 0 3px rgba(255,85,0,0.1);
        }

        /* 加盟代理区 */
        .agent-banner {
            background: linear-gradient(135deg, #FF5500 0%, #FF8800 100%);
            color: #ffffff;
            padding: 60px 40px;
            border-radius: 12px;
            text-align: center;
            margin-top: 50px;
        }

        .agent-banner h3 {
            font-size: 1.8rem;
            margin-bottom: 15px;
        }

        .agent-banner p {
            margin-bottom: 25px;
            opacity: 0.9;
        }

        .agent-btn {
            background-color: #ffffff;
            color: var(--primary);
            padding: 12px 35px;
            font-weight: 700;
            border-radius: 6px;
            display: inline-block;
            transition: all 0.3s ease;
        }

        .agent-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
        }

        /* 友情链接与页脚 */
        footer {
            background-color: var(--dark);
            color: #AAAAAA;
            padding: 60px 0 30px 0;
            border-top: 3px solid var(--primary);
            font-size: 0.85rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 50px;
            margin-bottom: 40px;
        }

        .footer-info h4 {
            color: #ffffff;
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

        .footer-info p {
            margin-bottom: 10px;
        }

        .footer-links h4 {
            color: #ffffff;
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a:hover {
            color: #ffffff;
        }

        .friend-links-area {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 25px;
            margin-top: 25px;
        }

        .friend-links-area h5 {
            color: #ffffff;
            margin-bottom: 12px;
            font-size: 0.9rem;
        }

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

        .friend-links-container a {
            color: #888888;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 20px;
            text-align: center;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .footer-bottom p {
            font-size: 0.8rem;
        }

        /* 侧边悬浮窗口 */
        .floating-kf {
            position: fixed;
            right: 20px;
            bottom: 80px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .kf-item {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            position: relative;
            transition: all 0.3s ease;
        }

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

        .kf-item-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: #ffffff;
            padding: 10px;
            border-radius: 8px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: all 0.3s ease;
            width: 150px;
            text-align: center;
        }

        .kf-item-qr img {
            width: 100%;
            height: auto;
        }

        .kf-item-qr p {
            font-size: 0.75rem;
            color: var(--dark);
            margin-top: 5px;
        }

        .kf-item:hover .kf-item-qr {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
        }

        .back-to-top {
            display: none;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .training-grid, .case-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .network-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .solutions-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-steps {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #ffffff;
                padding: 20px;
                box-shadow: 0 5px 15px rgba(0,0,0,0.1);
                gap: 15px;
                border-top: 1px solid var(--border-color);
            }

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

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }

            .hero-buttons .btn {
                width: 100%;
                max-width: 280px;
            }

            .services-grid, .training-grid, .case-grid, .reviews-grid, .solutions-grid, .flow-steps, .troubleshoot-grid {
                grid-template-columns: 1fr;
            }

            .articles-list {
                grid-template-columns: 1fr;
            }

            .rating-banner {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }
        }