:root {
            --primary-color: #22c55e;
            --primary-hover: #16a34a;
            --primary-light: #f0fdf4;
            --text-dark: #1f2937;
            --text-muted: #6b7280;
            --bg-light: #f9fafb;
            --bg-white: #ffffff;
            --border-color: #e5e7eb;
            --container-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 统一容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 0.5rem;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(34, 197, 94, 0.2);
        }

        .btn-secondary {
            background-color: transparent;
            border-color: var(--primary-color);
            color: var(--primary-hover);
        }

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

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 4.5rem;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .ai-page-logo {
            height: 2.5rem;
            width: auto;
            object-fit: contain;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-dark);
        }

        .nav-links {
            display: flex;
            gap: 1.5rem;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            padding: 0.25rem 0;
            border-bottom: 2px solid transparent;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--primary-color);
            border-bottom-color: var(--primary-color);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            transition: var(--transition);
        }

        /* Hero 首屏 (无图片) */
        .hero-section {
            background: linear-gradient(135deg, var(--primary-light) 0%, #ffffff 100%);
            padding: 6rem 0 4rem;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-badge {
            display: inline-block;
            background-color: rgba(34, 197, 94, 0.1);
            color: var(--primary-hover);
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.875rem;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(34, 197, 94, 0.2);
        }

        .hero-section h1 {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.25;
            margin-bottom: 1.5rem;
            letter-spacing: -0.02em;
        }

        .hero-subtitle {
            font-size: 1.125rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 2.5rem;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 4rem;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            border-radius: 0.75rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary-color);
        }

        .stat-number {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--primary-hover);
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 统一样式区块 */
        section {
            padding: 5rem 0;
            border-bottom: 1px solid var(--border-color);
            background-color: var(--bg-white);
        }

        .section-alt {
            background-color: var(--bg-light);
        }

        .section-title-area {
            text-align: center;
            margin-bottom: 3.5rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 0.75rem;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 3rem;
            height: 4px;
            background-color: var(--primary-color);
            margin: 0.5rem auto 0;
            border-radius: 2px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3rem;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 1.25rem;
            font-size: 1rem;
        }

        .about-image-wrapper {
            position: relative;
            border-radius: 1rem;
            overflow: hidden;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        }

        .about-image-wrapper img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .about-image-wrapper:hover img {
            transform: scale(1.05);
        }

        /* AIGC 服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .service-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 0.75rem;
            padding: 2rem;
            transition: var(--transition);
        }

        .service-card:hover {
            background-color: var(--bg-white);
            border-color: var(--primary-color);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
            transform: translateY(-4px);
        }

        .service-icon {
            width: 3.5rem;
            height: 3.5rem;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            border-radius: 0.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
        }

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

        /* 平台与工具标签云 */
        .platform-tags {
            margin-top: 3rem;
            text-align: center;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 2rem;
            border-radius: 1rem;
        }

        .platform-tags h4 {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            color: var(--text-dark);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem;
        }

        .tag-item {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 0.5rem 1rem;
            border-radius: 0.5rem;
            font-size: 0.875rem;
            color: var(--text-dark);
            font-weight: 500;
            transition: var(--transition);
        }

        .tag-item:hover {
            background-color: var(--primary-light);
            border-color: var(--primary-color);
            color: var(--primary-hover);
        }

        /* 自动化制作流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            position: relative;
        }

        .step-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 2rem 1.5rem;
            border-radius: 0.75rem;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-num {
            width: 2.5rem;
            height: 2.5rem;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 1.25rem;
            font-size: 1.1rem;
            box-shadow: 0 4px 6px rgba(34, 197, 94, 0.2);
        }

        .step-card h3 {
            font-size: 1.15rem;
            margin-bottom: 0.75rem;
        }

        .step-card p {
            color: var(--text-muted);
            font-size: 0.875rem;
        }

        /* 解决方案与案例 */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .solution-card {
            border: 1px solid var(--border-color);
            border-radius: 0.75rem;
            overflow: hidden;
            background-color: var(--bg-white);
            transition: var(--transition);
        }

        .solution-card:hover {
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            transform: translateY(-4px);
        }

        .solution-info {
            padding: 1.5rem;
        }

        .solution-info h3 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }

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

        /* 案例中心专属图片样式 */
        .case-image-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .case-img-box {
            border-radius: 0.75rem;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.05);
        }

        .case-img-box img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }

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

        /* 对比评测 */
        .rating-hero {
            background-color: var(--primary-light);
            border: 1px dashed var(--primary-color);
            border-radius: 1rem;
            padding: 2.5rem;
            text-align: center;
            margin-bottom: 3rem;
        }

        .rating-score {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--primary-hover);
            line-height: 1;
            margin-bottom: 0.5rem;
        }

        .rating-stars {
            color: #fbbf24;
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
        }

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

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 0.75rem;
            background-color: var(--bg-white);
        }

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

        .compare-table th, .compare-table td {
            padding: 1rem 1.25rem;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background-color: var(--bg-light);
            font-weight: 700;
        }

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

        .compare-table .highlight {
            background-color: var(--primary-light);
            font-weight: 600;
            color: var(--primary-hover);
        }

        /* Token 比价 */
        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
        }

        /* 培训体系 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
        }

        .training-card {
            background-color: var(--bg-white);
            border: 2px solid var(--border-color);
            padding: 1.5rem 1rem;
            border-radius: 0.75rem;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            border-color: var(--primary-color);
            background-color: var(--primary-light);
            transform: translateY(-4px);
        }

        .training-card h3 {
            font-size: 1rem;
            margin-bottom: 0.5rem;
            color: var(--text-dark);
        }

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

        /* 需求匹配表单与联系我们 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3rem;
        }

        .form-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 2.5rem;
            border-radius: 1rem;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
        }

        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.25rem;
            margin-bottom: 1.5rem;
        }

        .form-group-full {
            grid-column: span 2;
        }

        .form-group label {
            display: block;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
        }

        .contact-info-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 2.5rem;
            border-radius: 1rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-methods {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }

        .contact-item-icon {
            width: 2.5rem;
            height: 2.5rem;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            border-radius: 0.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: bold;
        }

        .contact-item-detail h4 {
            font-size: 0.95rem;
            margin-bottom: 0.25rem;
        }

        .contact-item-detail p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .qr-area {
            text-align: center;
            border-top: 1px solid var(--border-color);
            padding-top: 2rem;
        }

        .qr-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin-top: 1rem;
        }

        .qr-box {
            background: white;
            padding: 0.5rem;
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            text-align: center;
        }

        .qr-box img {
            width: 100%;
            height: auto;
            max-width: 100px;
            display: block;
            margin: 0 auto 0.5rem;
        }

        .qr-box span {
            font-size: 0.75rem;
            color: var(--text-muted);
            display: block;
        }

        /* 客户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .comment-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 2rem;
            border-radius: 0.75rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .comment-text {
            color: var(--text-dark);
            font-style: italic;
            margin-bottom: 1.5rem;
            font-size: 0.95rem;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .user-avatar-placeholder {
            width: 2.5rem;
            height: 2.5rem;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.875rem;
        }

        .user-info h4 {
            font-size: 0.9rem;
            margin-bottom: 0.15rem;
        }

        .user-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* FAQ 折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            background-color: var(--bg-white);
            border-radius: 0.5rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            width: 100%;
            padding: 1.25rem 1.5rem;
            text-align: left;
            background: none;
            border: none;
            outline: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary-color);
            transition: var(--transition);
        }

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

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

        .faq-answer-content {
            padding: 1.25rem 1.5rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid var(--border-color);
        }

        /* 资讯与友情链接 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .article-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 0.75rem;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-body {
            padding: 1.5rem;
        }

        .article-body h3 {
            font-size: 1.1rem;
            margin-bottom: 0.75rem;
        }

        .article-body p {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .article-link {
            font-size: 0.875rem;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
        }

        .article-link:hover {
            color: var(--primary-hover);
        }

        /* 友情链接 */
        .friend-links-wrapper {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 2rem;
            border-radius: 0.75rem;
            text-align: center;
        }

        .friend-links-wrapper h4 {
            margin-bottom: 1rem;
            font-size: 0.95rem;
            color: var(--text-dark);
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
        }

        .friend-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.875rem;
            transition: var(--transition);
        }

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

        /* 页脚 */
        footer {
            background-color: #111827;
            color: #9ca3af;
            padding: 4rem 0 2rem;
            font-size: 0.875rem;
            border-top: 4px solid var(--primary-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .footer-logo-desc h3 {
            color: #ffffff;
            font-size: 1.25rem;
            margin-bottom: 1rem;
        }

        .footer-logo-desc p {
            line-height: 1.6;
            margin-bottom: 1rem;
        }

        .footer-links-col h4 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 1.25rem;
        }

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

        .footer-links-col ul li {
            margin-bottom: 0.75rem;
        }

        .footer-links-col ul li a {
            color: #9ca3af;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links-col ul li a:hover {
            color: var(--primary-color);
            padding-left: 4px;
        }

        .footer-contact h4 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 1.25rem;
        }

        .footer-contact p {
            margin-bottom: 0.75rem;
        }

        .footer-bottom {
            border-top: 1px solid #1f2937;
            padding-top: 2rem;
            text-align: center;
            font-size: 0.75rem;
        }

        /* 浮动客服 */
        .float-kefu {
            position: fixed;
            right: 1.5rem;
            bottom: 5rem;
            background-color: var(--primary-color);
            color: white;
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 15px -3px rgba(34, 197, 94, 0.3);
            cursor: pointer;
            z-index: 99;
            transition: var(--transition);
        }

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

        .kefu-panel {
            position: fixed;
            right: 1.5rem;
            bottom: 9.5rem;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 0.75rem;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            padding: 1.5rem;
            width: 260px;
            z-index: 99;
            display: none;
            transition: var(--transition);
        }

        .kefu-panel.active {
            display: block;
        }

        .kefu-panel h4 {
            font-size: 1rem;
            margin-bottom: 0.75rem;
            text-align: center;
        }

        .kefu-panel img {
            width: 100%;
            height: auto;
            border-radius: 0.5rem;
            margin-bottom: 0.75rem;
        }

        /* 自适应支持 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid, .solution-grid, .comments-grid, .articles-grid, .case-image-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 4.5rem;
                left: 0;
                right: 0;
                background-color: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                padding: 1.5rem;
                gap: 1rem;
                box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
            }
            .nav-links.active {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .about-grid, .contact-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-image-grid {
                grid-template-columns: 1fr;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group-full {
                grid-column: span 1;
            }
        }

        @media (max-width: 480px) {
            .stats-grid, .service-grid, .process-steps, .solution-grid, .comments-grid, .articles-grid, .training-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
        }