:root {
            --primary: #3b82f6;
            --primary-dark: #1d4ed8;
            --accent: #ff5a36;
            --accent-yellow: #facc15;
            --bg-light: #f8fafc;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --border-color: #e2e8f0;
            --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
            --neon-shadow: 0 0 20px rgba(59, 130, 246, 0.15);
        }

        * {
            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-light);
            color: var(--text-dark);
        }

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

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

        /* 顶通导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
        }

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

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

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

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

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

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

        .nav-btn {
            background-color: var(--primary);
            color: white;
            padding: 8px 18px;
            border-radius: 8px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s;
            border: 2px solid transparent;
        }

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

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

        /* 移动端侧边菜单 */
        .mobile-menu {
            display: none;
            background-color: white;
            border-bottom: 1px solid var(--border-color);
            padding: 16px 24px;
            flex-direction: column;
            gap: 12px;
        }

        /* 首屏 Hero 区 - 无图片设计，采用纯色/渐变/几何块/数据卡片 */
        .hero {
            background: radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(255, 90, 54, 0.05) 0%, transparent 50%),
                        #ffffff;
            padding: 100px 0 80px;
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--accent-yellow));
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background-color: rgba(59, 130, 246, 0.08);
            border: 1px solid rgba(59, 130, 246, 0.2);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 99px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: 42px;
            font-weight: 850;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 36px;
            max-width: 600px;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            margin-bottom: 40px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            padding: 14px 28px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 700;
            box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
            transition: all 0.3s;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
        }

        .btn-secondary {
            background-color: white;
            color: var(--text-dark);
            border: 2px solid var(--border-color);
            padding: 12px 28px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }

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

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .stat-card {
            background: white;
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            display: block;
        }

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

        .hero-card {
            background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(248,250,252,0.9));
            border: 2px dashed rgba(59, 130, 246, 0.3);
            border-radius: 24px;
            padding: 36px;
            box-shadow: var(--card-shadow);
            position: relative;
        }

        .hero-card-tag {
            position: absolute;
            top: -12px;
            right: 24px;
            background-color: var(--accent);
            color: white;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 700;
            border-radius: 4px;
        }

        .hero-feature-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-feature-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
        }

        .hero-feature-icon {
            color: var(--primary);
            font-size: 18px;
        }

        /* 通用区块样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-tag {
            color: var(--primary);
            font-weight: 700;
            text-transform: uppercase;
            font-size: 14px;
            letter-spacing: 1px;
            margin-bottom: 12px;
            display: inline-block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

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

        .about-image-wrapper {
            position: relative;
        }

        .about-image-wrapper img {
            border-radius: 16px;
            box-shadow: var(--card-shadow);
        }

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

        .service-card {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 32px;
            transition: all 0.3s;
            box-shadow: var(--card-shadow);
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.1);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background-color: rgba(59, 130, 246, 0.08);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 24px;
        }

        .service-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

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

        /* AIGC 平台标签云 */
        .platform-tag-wrap {
            margin-top: 40px;
            background-color: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 32px;
            text-align: center;
        }

        .platform-tag-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

        .tag-item {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 99px;
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            transition: all 0.3s;
        }

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

        /* 制作流程 */
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            position: relative;
            background: white;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
        }

        .step-num {
            position: absolute;
            top: -20px;
            left: 30px;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), #ff8a3d);
            color: white;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 4px solid var(--bg-light);
        }

        .step-title {
            font-size: 18px;
            font-weight: 700;
            margin: 12px 0 10px 0;
        }

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

        /* 全行业解决方案 */
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .solution-image img {
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            width: 100%;
        }

        .solution-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .solution-item {
            display: flex;
            gap: 16px;
            padding: 20px;
            background: white;
            border-radius: 12px;
            border: 1px solid var(--border-color);
        }

        .solution-icon {
            font-size: 24px;
            color: var(--accent);
        }

        /* 服务网络 & 标准 */
        .network-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .network-card {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
        }

        .network-card h3 {
            margin-bottom: 12px;
            color: var(--primary);
        }

        /* 客户案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

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

        .case-image {
            height: 200px;
            overflow: hidden;
        }

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

        .case-content {
            padding: 24px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }

        .case-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

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

        /* 对比评测 - 突出 9.9 评分和 5星推荐 */
        .eval-section {
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(255, 90, 54, 0.05));
        }

        .eval-header-card {
            background: white;
            border: 2px solid var(--primary);
            border-radius: 20px;
            padding: 32px;
            text-align: center;
            max-width: 600px;
            margin: 0 auto 48px;
            box-shadow: var(--card-shadow);
        }

        .score-wrap {
            display: flex;
            justify-content: center;
            align-items: baseline;
            gap: 8px;
            margin-bottom: 12px;
        }

        .score-num {
            font-size: 64px;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
        }

        .score-max {
            font-size: 24px;
            color: var(--text-muted);
        }

        .stars-wrap {
            color: var(--accent-yellow);
            font-size: 28px;
            margin-bottom: 16px;
        }

        .eval-table-wrap {
            overflow-x: auto;
            background: white;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
        }

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

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

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

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

        .highlight-col {
            background-color: rgba(59, 130, 246, 0.03);
            font-weight: 600;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .token-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 28px;
            text-align: center;
            box-shadow: var(--card-shadow);
            position: relative;
        }

        .token-card.best-price {
            border-color: var(--accent);
        }

        .token-card.best-price::after {
            content: "超低折扣";
            position: absolute;
            top: 12px;
            right: 12px;
            background-color: var(--accent);
            color: white;
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 700;
        }

        .token-price {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin: 16px 0;
        }

        /* 培训板块 */
        .train-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .train-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 36px;
            box-shadow: var(--card-shadow);
        }

        .train-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 24px;
        }

        .train-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px;
            background-color: var(--bg-light);
            border-radius: 8px;
            font-weight: 600;
        }

        /* 客户评论 - 6条 */
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .comment-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 28px;
            box-shadow: var(--card-shadow);
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .user-avatar {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .user-info h4 {
            font-size: 16px;
            font-weight: 700;
        }

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

        .comment-text {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 软件介绍 */
        .intro-box {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 48px;
            box-shadow: var(--card-shadow);
        }

        .intro-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 36px;
        }

        .intro-feat-item h4 {
            margin-bottom: 8px;
            color: var(--primary);
        }

        /* 术语百科 & 帮助中心 */
        .wiki-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .wiki-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
        }

        .wiki-card h3 {
            margin-bottom: 12px;
            color: var(--text-dark);
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: border-color 0.3s;
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            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-muted);
            font-size: 14px;
            border-top: 1px solid transparent;
        }

        .faq-item.active {
            border-color: var(--primary);
        }

        .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);
        }

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            background: white;
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .news-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 700;
            font-size: 16px;
        }

        .news-link:hover {
            text-decoration: underline;
        }

        /* 需求匹配表单 & 联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
        }

        .form-wrap {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

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

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 14px;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            background-color: var(--bg-light);
            transition: border-color 0.3s;
        }

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

        .form-submit {
            width: 100%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            padding: 14px;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
        }

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

        .contact-info-wrap {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .contact-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
        }

        .kefu-qrcode {
            text-align: center;
            margin-top: 16px;
        }

        .kefu-qrcode img {
            width: 150px;
            height: 150px;
            border-radius: 8px;
        }

        /* 页脚 */
        footer {
            background-color: var(--text-dark);
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 14px;
            border-top: 2px solid var(--accent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-logo-area img {
            height: 36px;
            margin-bottom: 16px;
        }

        .footer-links-title {
            color: white;
            font-weight: 750;
            margin-bottom: 20px;
            font-size: 16px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

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

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

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 悬浮客服 */
        .floating-kefu {
            position: fixed;
            bottom: 40px;
            right: 40px;
            background-color: var(--primary);
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 25px rgba(59, 130, 246, 0.4);
            cursor: pointer;
            z-index: 999;
            transition: transform 0.3s;
        }

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

        .kefu-modal {
            display: none;
            position: fixed;
            bottom: 110px;
            right: 40px;
            background: white;
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            z-index: 1000;
            text-align: center;
        }

        .kefu-modal img {
            width: 140px;
            height: 140px;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .hero-grid, .about-grid, .solution-grid, .train-grid, .wiki-grid, .news-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .hero-card {
                order: -1;
            }
            .process-timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px 24px;
            }
            .network-grid, .case-grid, .token-grid, .comment-grid, .intro-features {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .process-timeline, .network-grid, .case-grid, .token-grid, .comment-grid, .intro-features {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 32px;
            }
            .section-title {
                font-size: 26px;
            }
        }