:root {
            --primary: #FF5500;
            --primary-light: #FF884D;
            --primary-dark: #CC3F00;
            --dark: #1E1E24;
            --light: #F9FAFB;
            --white: #FFFFFF;
            --gray-1: #333333;
            --gray-2: #666666;
            --gray-3: #999999;
            --gray-4: #EAEAEA;
            --shadow: 0 10px 30px rgba(0,0,0,0.05);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--light);
            color: var(--gray-1);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        /* 统一容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 80px 0;
        }

        /* 渐入动效 */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-in.active {
            opacity: 1;
            transform: translateY(0);
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline {
            background-color: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
        }

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 15px rgba(0,0,0,0.05);
            border-bottom: 1px solid var(--gray-4);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo-area {
            display: flex;
            align-items: center;
        }
        .ai-page-logo {
            max-height: 40px;
            object-fit: contain;
        }
        .nav-links {
            display: flex;
            gap: 20px;
            list-style: none;
        }
        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: var(--gray-1);
            padding: 6px 4px;
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--gray-1);
            transition: var(--transition);
        }

        /* Hero首屏 - 严禁出现图片 */
        .hero {
            background: linear-gradient(135deg, #1E1E24 0%, #30180D 100%);
            color: var(--white);
            padding: 100px 0 80px 0;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255,85,0,0.15) 0%, transparent 70%);
            top: -200px;
            right: -200px;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,85,0,0.1) 0%, transparent 70%);
            bottom: -150px;
            left: -150px;
            pointer-events: none;
        }
        .hero-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        .hero-tag {
            background-color: rgba(255, 85, 0, 0.15);
            color: var(--primary-light);
            border: 1px solid var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }
        .hero-inner h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            background: linear-gradient(to right, #FFFFFF, #FFC299);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-desc {
            font-size: 18px;
            color: var(--gray-3);
            margin-bottom: 35px;
            max-width: 700px;
        }
        .hero-buttons {
            display: flex;
            gap: 15px;
            margin-bottom: 50px;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            width: 100%;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 40px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-val {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-light);
            margin-bottom: 5px;
        }
        .stat-lbl {
            font-size: 12px;
            color: var(--gray-3);
        }

        /* 通用标题 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            width: 50px;
            height: 3px;
            background-color: var(--primary);
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
        }
        .section-header p {
            font-size: 15px;
            color: var(--gray-2);
            max-width: 600px;
            margin: 15px auto 0 auto;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 50px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: var(--dark);
        }
        .about-text p {
            margin-bottom: 20px;
            color: var(--gray-1);
        }
        .about-highlights {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        .highlight-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
            box-shadow: var(--shadow);
        }
        .highlight-card h4 {
            font-size: 15px;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .highlight-card p {
            font-size: 13px;
            color: var(--gray-2);
            margin-bottom: 0;
        }
        .about-image-wrapper {
            position: relative;
        }
        .about-image-wrapper img {
            border-radius: 12px;
            box-shadow: var(--shadow);
            width: 100%;
        }

        /* AIGC 服务体系 - 模型墙与应用 */
        .bg-white {
            background-color: var(--white);
        }
        .service-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
            margin-bottom: 50px;
        }
        .service-card {
            background-color: var(--light);
            padding: 30px;
            border-radius: 10px;
            border: 1px solid var(--gray-4);
            transition: var(--transition);
        }
        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
        }
        .service-icon {
            font-size: 32px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .service-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--dark);
        }
        .service-card p {
            font-size: 14px;
            color: var(--gray-2);
        }
        .model-list-wrapper {
            background-color: var(--light);
            border-radius: 12px;
            padding: 35px;
            border: 1px solid var(--gray-4);
        }
        .model-list-title {
            text-align: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 25px;
        }
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .model-tag {
            background-color: var(--white);
            border: 1px solid var(--gray-4);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            color: var(--gray-1);
            font-weight: 500;
            transition: var(--transition);
        }
        .model-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: rgba(255, 85, 0, 0.02);
        }

        /* 制作流程 & 服务全流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }
        .process-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            position: relative;
            z-index: 2;
        }
        .process-num {
            position: absolute;
            top: -20px;
            left: 20px;
            font-size: 48px;
            font-weight: 900;
            color: rgba(255, 85, 0, 0.1);
            line-height: 1;
        }
        .process-card h3 {
            font-size: 16px;
            margin-top: 15px;
            margin-bottom: 10px;
            color: var(--dark);
        }
        .process-card p {
            font-size: 13px;
            color: var(--gray-2);
        }

        /* 全行业解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .solution-item {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--gray-4);
        }
        .solution-item:hover {
            transform: translateY(-5px);
            border-color: var(--primary-light);
        }
        .solution-body {
            padding: 25px;
        }
        .solution-body h3 {
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--dark);
        }
        .solution-body p {
            font-size: 13px;
            color: var(--gray-2);
            margin-bottom: 15px;
        }
        .solution-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .solution-tag {
            background-color: var(--light);
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 11px;
            color: var(--gray-1);
        }

        /* 服务网络 & 技术标准 */
        .network-section {
            background-color: var(--white);
        }
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .standard-list {
            list-style: none;
        }
        .standard-list li {
            padding: 15px 0;
            border-bottom: 1px solid var(--gray-4);
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .standard-list li:last-child {
            border-bottom: none;
        }
        .standard-check {
            width: 20px;
            height: 20px;
            background-color: rgba(255, 85, 0, 0.1);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: bold;
        }
        .standard-text h4 {
            font-size: 15px;
            color: var(--dark);
        }
        .standard-text p {
            font-size: 13px;
            color: var(--gray-2);
        }

        /* 案例中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .case-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-4);
        }
        .case-img-container {
            width: 100%;
            overflow: hidden;
        }
        .case-card img {
            width: 100%;
            display: block;
            object-fit: cover;
            transition: var(--transition);
        }
        .case-card:hover img {
            transform: scale(1.05);
        }
        .case-info {
            padding: 20px;
        }
        .case-info h3 {
            font-size: 16px;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .case-info p {
            font-size: 13px;
            color: var(--gray-2);
        }

        /* 对比评测 - 表格 */
        .comparison-table-wrapper {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
            overflow-x: auto;
            border: 1px solid var(--gray-4);
        }
        .comparison-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--gray-4);
        }
        .meta-rating {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .stars {
            color: #FFB300;
            font-size: 20px;
        }
        .score {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
        }
        .score span {
            color: var(--primary);
            font-size: 24px;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }
        th, td {
            padding: 16px;
            border-bottom: 1px solid var(--gray-4);
            font-size: 14px;
        }
        th {
            font-weight: 700;
            color: var(--dark);
            background-color: var(--light);
        }
        tr:hover td {
            background-color: rgba(255, 85, 0, 0.02);
        }
        .highlight-cell {
            color: var(--primary);
            font-weight: 600;
        }

        /* 需求匹配与价格参考 */
        .match-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }
        .interactive-box {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-4);
        }
        .select-group {
            margin-bottom: 20px;
        }
        .select-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
            display: block;
        }
        .select-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .select-btn {
            background-color: var(--light);
            border: 1px solid var(--gray-4);
            padding: 8px 16px;
            border-radius: 6px;
            font-size: 13px;
            cursor: pointer;
            transition: var(--transition);
        }
        .select-btn.active, .select-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: rgba(255, 85, 0, 0.05);
        }
        .match-result {
            margin-top: 25px;
            padding: 20px;
            background-color: var(--light);
            border-radius: 6px;
            border-left: 4px solid var(--primary);
            display: none;
        }
        .pricing-list {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-4);
        }
        .pricing-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--gray-4);
        }
        .pricing-item:last-child {
            border-bottom: none;
        }
        .pricing-name {
            font-weight: 500;
            font-size: 14px;
        }
        .pricing-val {
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
        }

        /* 培训中心 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
        }
        .training-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            border: 1px solid var(--gray-4);
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }
        .training-icon {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 15px;
        }
        .training-card h3 {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .training-card p {
            font-size: 11px;
            color: var(--gray-2);
        }

        /* 用户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .comment-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: 10px;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-4);
        }
        .comment-text {
            font-size: 13px;
            color: var(--gray-1);
            margin-bottom: 20px;
            font-style: italic;
        }
        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .comment-avatar {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }
        .user-info h4 {
            font-size: 14px;
            color: var(--dark);
        }
        .user-info p {
            font-size: 11px;
            color: var(--gray-3);
        }

        /* FAQ */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }
        .faq-left h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: var(--dark);
        }
        .faq-left p {
            color: var(--gray-2);
            margin-bottom: 25px;
            font-size: 14px;
        }
        .troubleshoot-box {
            background-color: var(--white);
            border-radius: 8px;
            padding: 20px;
            border: 1px solid var(--gray-4);
        }
        .troubleshoot-box h4 {
            font-size: 14px;
            margin-bottom: 12px;
            color: var(--dark);
        }
        .faq-accordion {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background-color: var(--white);
            border: 1px solid var(--gray-4);
            border-radius: 6px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-question {
            padding: 16px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            user-select: none;
        }
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            font-size: 13px;
            color: var(--gray-2);
            border-top: 1px solid transparent;
        }
        .faq-item.active {
            border-color: var(--primary);
        }
        .faq-item.active .faq-answer {
            padding: 16px 20px;
            max-height: 200px;
            border-top-color: var(--gray-4);
        }
        .faq-icon {
            font-size: 14px;
            transition: var(--transition);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* 百科词条 */
        .encyclopedia-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        .encyclopedia-item {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            border: 1px solid var(--gray-4);
        }
        .encyclopedia-item h4 {
            font-size: 14px;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .encyclopedia-item p {
            font-size: 12px;
            color: var(--gray-2);
            margin-bottom: 0;
        }

        /* 资讯 / 知识库 */
        .news-section {
            background-color: var(--white);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }
        .news-card {
            background-color: var(--light);
            border-radius: 8px;
            padding: 25px;
            border: 1px solid var(--gray-4);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .news-card h3 {
            font-size: 15px;
            color: var(--dark);
            margin-bottom: 15px;
            line-height: 1.4;
        }
        .news-card a {
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .news-card a:hover {
            color: var(--primary-dark);
        }

        /* 联系我们与表单 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }
        .contact-info {
            background-color: var(--dark);
            color: var(--white);
            padding: 40px;
            border-radius: 12px;
        }
        .contact-info h3 {
            font-size: 22px;
            margin-bottom: 25px;
        }
        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 35px;
        }
        .detail-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }
        .detail-icon {
            color: var(--primary-light);
            font-size: 18px;
        }
        .detail-text h4 {
            font-size: 14px;
            margin-bottom: 4px;
        }
        .detail-text p {
            font-size: 13px;
            color: var(--gray-3);
        }
        .contact-social {
            display: flex;
            gap: 25px;
            align-items: center;
        }
        .qrcode-wrapper {
            text-align: center;
        }
        .qrcode-wrapper img {
            width: 100px;
            height: 100px;
            border-radius: 6px;
            background-color: var(--white);
            padding: 5px;
        }
        .qrcode-wrapper p {
            font-size: 11px;
            color: var(--gray-3);
            margin-top: 5px;
        }
        .social-meta-info {
            font-size: 13px;
            color: var(--gray-3);
        }
        .contact-form-wrapper {
            background-color: var(--white);
            border-radius: 12px;
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--gray-4);
        }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group.full-width {
            grid-column: span 2;
        }
        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--dark);
            margin-bottom: 8px;
        }
        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--gray-4);
            border-radius: 6px;
            font-size: 13px;
            outline: none;
            transition: var(--transition);
            background-color: var(--light);
        }
        .form-input:focus, .form-select:focus, .form-textarea:focus {
            border-color: var(--primary);
            background-color: var(--white);
        }
        .form-textarea {
            resize: vertical;
            min-height: 100px;
        }

        /* 页脚 */
        footer {
            background-color: var(--dark);
            color: var(--gray-3);
            padding: 60px 0 20px 0;
            border-top: 4px solid var(--primary);
            font-size: 13px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 50px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            color: var(--white);
            font-size: 18px;
            margin-bottom: 15px;
        }
        .footer-brand p {
            margin-bottom: 20px;
            max-width: 400px;
        }
        .footer-links-group {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .footer-links-group h4 {
            color: var(--white);
            font-size: 14px;
            margin-bottom: 15px;
        }
        .footer-links-group ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links-group a:hover {
            color: var(--primary-light);
        }
        .friend-links {
            padding: 20px 0;
            border-top: 1px solid rgba(255,255,255,0.08);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            margin-bottom: 20px;
        }
        .friend-links-title {
            color: var(--white);
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        .friend-links-list a {
            color: var(--gray-3);
        }
        .friend-links-list a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 侧边浮动栏 */
        .floating-sidebar {
            position: fixed;
            right: 20px;
            bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }
        .float-btn {
            width: 45px;
            height: 45px;
            background-color: var(--white);
            border: 1px solid var(--gray-4);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }
        .float-btn:hover {
            background-color: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }
        .float-kefu-pop {
            position: absolute;
            right: 55px;
            bottom: 0;
            background-color: var(--white);
            padding: 15px;
            border-radius: 8px;
            border: 1px solid var(--gray-4);
            box-shadow: var(--shadow);
            display: none;
            text-align: center;
            width: 140px;
        }
        .float-kefu-pop img {
            width: 110px;
            height: 110px;
            margin-bottom: 5px;
        }
        .float-kefu-pop p {
            font-size: 11px;
            color: var(--gray-1);
        }
        .float-btn:hover .float-kefu-pop {
            display: block;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .hero-inner h1 {
                font-size: 34px;
            }
            .service-features, .solutions-grid, .cases-grid, .comments-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .encyclopedia-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                border-top: 1px solid var(--gray-4);
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .network-grid, .match-grid, .faq-grid, .contact-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 15px;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            .hero-inner h1 {
                font-size: 26px;
            }
            .service-features, .solutions-grid, .cases-grid, .comments-grid, .news-grid, .training-grid, .encyclopedia-grid, .process-steps {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .nav-actions {
                display: none;
            }
        }