/* 核心样式重置与全局定义 */
        :root {
            --primary: #0052ff;
            --secondary: #b900ff;
            --accent: #ff6c00;
            --bg-main: #f8fafc;
            --bg-card: #ffffff;
            --text-title: #0f172a;
            --text-body: #334155;
            --text-light: #64748b;
            --border-color: #e2e8f0;
            --container-max: 1200px;
            --gradient-primary: linear-gradient(135deg, #0052ff 0%, #b900ff 50%, #ff6c00 100%);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-main);
            color: var(--text-body);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            position: relative;
        }

        /* 极光背景装饰（高饱和艳彩风） */
        .aurora-bg {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            z-index: -2;
            overflow: hidden;
            pointer-events: none;
        }

        .aurora-sphere {
            position: absolute;
            filter: blur(140px);
            opacity: 0.12;
            border-radius: 50%;
        }

        .aurora-1 {
            width: 600px;
            height: 600px;
            background: var(--primary);
            top: -200px;
            left: -100px;
        }

        .aurora-2 {
            width: 500px;
            height: 500px;
            background: var(--secondary);
            top: 400px;
            right: -100px;
        }

        .aurora-3 {
            width: 600px;
            height: 600px;
            background: var(--accent);
            bottom: 10%;
            left: -200px;
        }

        /* 居中容器 */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 统一标题组件 */
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            color: var(--text-title);
            margin-bottom: 12px;
            font-weight: 800;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--gradient-primary);
            margin: 8px auto 0;
            border-radius: 2px;
        }

        .section-header p {
            font-size: 1.1rem;
            color: var(--text-light);
        }

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
        }

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

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

        .ai-page-logo {
            height: 40px;
            object-fit: contain;
        }

        .nav-links {
            display: flex;
            gap: 24px;
            list-style: none;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-body);
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s;
        }

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

        /* 导航右侧动作按钮 */
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-nav-primary {
            background: var(--gradient-primary);
            color: #fff !important;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 0.9rem;
            text-decoration: none;
            font-weight: 600;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .btn-nav-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(0, 82, 255, 0.3);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-title);
        }

        /* 首屏 Hero 区域 (无图片) */
        .hero {
            padding: 160px 0 100px;
            text-align: center;
            position: relative;
        }

        .hero-badge {
            background: rgba(0, 82, 255, 0.08);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 24px;
            border: 1px solid rgba(0, 82, 255, 0.15);
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            color: var(--text-title);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .hero h1 span {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p.lead {
            font-size: 1.25rem;
            color: var(--text-body);
            max-width: 800px;
            margin: 0 auto 40px;
        }

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

        .btn-main {
            display: inline-block;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 1.05rem;
            font-weight: 700;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .btn-main.primary {
            background: var(--gradient-primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(185, 0, 255, 0.25);
        }

        .btn-main.primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(185, 0, 255, 0.4);
        }

        .btn-main.secondary {
            background: #fff;
            color: var(--text-title);
            border: 2px solid var(--border-color);
        }

        .btn-main.secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-3px);
        }

        /* 模块统一样式 */
        section {
            padding: 80px 0;
            position: relative;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            margin-bottom: 40px;
        }

        .stat-card {
            background: var(--bg-card);
            padding: 30px 24px;
            border-radius: 16px;
            text-align: center;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
            transition: transform 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-light);
            font-weight: 600;
        }

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

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

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

        .about-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .about-feature-item svg {
            width: 20px;
            height: 20px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .about-feature-text h4 {
            font-size: 1rem;
            color: var(--text-title);
            margin-bottom: 4px;
        }

        .about-feature-text p {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* 全平台 AIGC 服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 35px 28px;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

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

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.05);
        }

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

        .service-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 82, 255, 0.06);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 20px;
        }

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

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

        /* 平台列表标签云 */
        .platform-tag-cloud {
            margin-top: 40px;
            text-align: center;
        }

        .platform-tag-cloud p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 16px;
            font-weight: 600;
        }

        .tags-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            max-width: 900px;
            margin: 0 auto;
        }

        .tag-item {
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-body);
            font-weight: 500;
            transition: all 0.2s;
        }

        .tag-item:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: #fff;
        }

        /* 全自动 AIGC 制作流程 & 全行业解决方案 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }

        .process-step {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px 24px;
            border: 1px solid var(--border-color);
            position: relative;
            text-align: center;
        }

        .step-num {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--gradient-primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
        }

        .process-step h4 {
            font-size: 1.15rem;
            color: var(--text-title);
            margin: 15px 0 10px;
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--text-light);
        }

        /* 对比评测表格 */
        .table-responsive {
            overflow-x: auto;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: #f8fafc;
            color: var(--text-title);
            font-weight: 700;
        }

        .comparison-table tbody tr:hover {
            background-color: #f1f5f9;
        }

        .highlight-col {
            background-color: rgba(0, 82, 255, 0.02);
            font-weight: 600;
            color: var(--primary);
        }

        .badge-star {
            color: #ffb800;
            font-size: 1.1rem;
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }

        .case-card:hover {
            transform: translateY(-6px);
        }

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background-color: #e2e8f0;
        }

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

        .case-body {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(185, 0, 255, 0.08);
            color: var(--secondary);
            margin-bottom: 12px;
        }

        .case-body h3 {
            font-size: 1.2rem;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .case-body p {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .training-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            position: relative;
            transition: all 0.3s;
        }

        .training-card:hover {
            border-color: var(--accent);
            box-shadow: 0 8px 24px rgba(255, 108, 0, 0.08);
        }

        .training-badge {
            background-color: rgba(255, 108, 0, 0.08);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 16px;
        }

        .training-card h3 {
            font-size: 1.25rem;
            color: var(--text-title);
            margin-bottom: 12px;
        }

        .training-card p {
            font-size: 0.9rem;
            color: var(--text-body);
            margin-bottom: 16px;
        }

        .training-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
            display: flex;
            justify-content: space-between;
        }

        /* 客户评论卡片 */
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .comment-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.01);
        }

        .comment-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
        }

        .comment-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
        }

        .comment-meta h4 {
            font-size: 1rem;
            color: var(--text-title);
        }

        .comment-meta p {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .comment-body {
            font-size: 0.9rem;
            color: var(--text-body);
            font-style: italic;
        }

        /* 行业资讯/知识库 */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .article-card {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }

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

        .article-card h3 {
            font-size: 1.1rem;
            color: var(--text-title);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-card a {
            color: var(--primary);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-card a:hover {
            text-decoration: underline;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-title);
            user-select: none;
        }

        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-body);
            font-size: 0.95rem;
            border-top: 0 solid var(--border-color);
        }

        .faq-item.active .faq-answer {
            padding: 20px 24px;
            max-height: 200px;
            border-top: 1px solid var(--border-color);
        }

        .faq-icon {
            transition: transform 0.3s;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        /* 需求匹配与联系我们表单 */
        .form-section-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
        }

        .contact-info-panel {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

        .contact-info-panel h3 {
            font-size: 1.6rem;
            color: var(--text-title);
            margin-bottom: 24px;
        }

        .contact-list {
            list-style: none;
            margin-bottom: 30px;
        }

        .contact-list li {
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.95rem;
        }

        .contact-list li svg {
            width: 20px;
            height: 20px;
            color: var(--primary);
        }

        .qr-codes {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
            gap: 20px;
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
        }

        .qr-item {
            text-align: center;
        }

        .qr-item img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            margin-bottom: 8px;
        }

        .qr-item p {
            font-size: 0.8rem;
            color: var(--text-light);
            font-weight: 600;
        }

        .submit-form {
            background: var(--bg-card);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

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

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

        .form-group label {
            display: block;
            font-size: 0.85rem;
            color: var(--text-title);
            margin-bottom: 6px;
            font-weight: 600;
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 0.9rem;
            transition: border-color 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }

        textarea.form-control {
            height: 100px;
            resize: vertical;
        }

        .btn-submit {
            background: var(--gradient-primary);
            color: #fff;
            border: none;
            padding: 12px 30px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 30px;
            cursor: pointer;
            width: 100%;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(0, 82, 255, 0.3);
        }

        /* 友情链接与词条百科 */
        .term-wiki-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .term-badge {
            background: #f1f5f9;
            color: var(--text-body);
            padding: 6px 12px;
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .friend-links {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            margin-top: 40px;
            font-size: 0.85rem;
        }

        .friend-links a {
            color: var(--text-light);
            text-decoration: none;
            margin-right: 15px;
            display: inline-block;
        }

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

        /* 浮动客服入口 */
        .floating-kefu {
            position: fixed;
            bottom: 40px;
            right: 40px;
            background: var(--gradient-primary);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            cursor: pointer;
            z-index: 999;
            transition: transform 0.3s;
        }

        .floating-kefu:hover {
            transform: scale(1.1);
        }

        .kefu-popover {
            position: absolute;
            bottom: 70px;
            right: 0;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 16px;
            box-shadow: 0 8px 24px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 160px;
        }

        .kefu-popover.show {
            display: block;
        }

        .kefu-popover img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            border-radius: 6px;
            margin-bottom: 8px;
        }

        .kefu-popover p {
            font-size: 0.75rem;
            color: var(--text-title);
            font-weight: 600;
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            color: #fff;
            margin-bottom: 16px;
            font-size: 1.4rem;
        }

        .footer-links h4 {
            color: #fff;
            margin-bottom: 16px;
            font-size: 1rem;
        }

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

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

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s;
        }

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

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            flex-wrap: wrap;
            gap: 16px;
        }

        .ai-page-home-link {
            color: #fff;
            text-decoration: none;
            font-weight: bold;
        }

        /* 响应式媒体查询 */
        @media (max-width: 992px) {
            .about-wrapper, .form-section-wrapper {
                grid-template-columns: 1fr;
            }

            .hero h1 {
                font-size: 2.3rem;
            }

            .menu-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: #fff;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            }

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

            .nav-actions {
                display: none;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }