:root {
            --primary: #0052cc;
            --primary-light: #e6f0ff;
            --primary-hover: #0043a8;
            --accent: #00b4d8;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border: #e2e8f0;
            --shadow-sm: 0 2px 4px rgba(0, 82, 204, 0.05);
            --shadow-md: 0 10px 20px rgba(0, 82, 204, 0.08);
            --shadow-lg: 0 20px 40px rgba(0, 82, 204, 0.12);
            --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;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .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;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 1px;
        }

        .nav-menu {
            display: flex;
            list-style: none;
        }

        .nav-menu a {
            color: var(--text-dark);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-menu a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--bg-white);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 82, 204, 0.2);
        }

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

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

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

        /* Hero 首屏 (无图片) */
        .hero {
            background: linear-gradient(135deg, #e6f0ff 0%, #ffffff 100%);
            padding: 120px 0 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 40%;
            height: 60%;
            background: radial-gradient(circle, rgba(0, 82, 204, 0.05) 0%, transparent 70%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 50%;
            height: 60%;
            background: radial-gradient(circle, rgba(0, 180, 216, 0.08) 0%, transparent 70%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(0, 82, 204, 0.15);
        }

        .hero h1 {
            font-size: 40px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 60px;
        }

        .hero-btns .btn {
            padding: 14px 32px;
            font-size: 16px;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: var(--bg-white);
            padding: 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 通用区块样式 */
        .section {
            padding: 80px 0;
        }

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

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

        .section-header h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }

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

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

        .about-content h3 {
            font-size: 24px;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

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

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

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

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

        .about-feat-item h4 {
            font-size: 16px;
            margin-bottom: 4px;
        }

        .about-feat-item p {
            font-size: 13px;
            margin: 0;
        }

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

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

        /* 全平台AIGC服务 / 一站式AIGC制作 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border);
            padding: 32px;
            border-radius: 16px;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            background-color: var(--bg-white);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }

        .service-icon svg {
            width: 24px;
            height: 24px;
        }

        .service-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

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

        /* 支持模型标签云 */
        .model-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 30px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .model-tag {
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(0, 82, 204, 0.08);
            transition: var(--transition);
        }

        .model-tag:hover {
            background-color: var(--primary);
            color: var(--bg-white);
            transform: scale(1.05);
        }

        /* 解决方案与流程 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .solution-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .solution-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .solution-info {
            padding: 24px;
        }

        .solution-info h3 {
            font-size: 18px;
            margin-bottom: 12px;
        }

        .solution-info p {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* 时间线组件 - 标准化AIGC流程 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            width: 2px;
            background-color: var(--border);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -1px;
        }

        .timeline-item {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 16px;
            height: 16px;
            right: -8px;
            background-color: var(--bg-white);
            border: 4px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }

        .left {
            left: 0;
        }

        .right {
            left: 50%;
        }

        .right::after {
            left: -8px;
        }

        .timeline-content {
            padding: 20px 30px;
            background-color: var(--bg-white);
            position: relative;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }

        .timeline-content h3 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .timeline-content p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 对比评测 & 推荐度 */
        .rating-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: var(--bg-white);
            padding: 40px;
            border-radius: 16px;
            text-align: center;
            margin-bottom: 40px;
            box-shadow: var(--shadow-md);
        }

        .rating-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .stars {
            font-size: 32px;
            color: #ffb703;
            margin-bottom: 12px;
        }

        .score {
            font-size: 48px;
            font-weight: 800;
        }

        .score span {
            font-size: 24px;
            font-weight: 400;
        }

        .table-responsive {
            overflow-x: auto;
            background-color: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

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

        .comparison-table th, .comparison-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
        }

        .comparison-table th {
            background-color: var(--bg-light);
            font-weight: 600;
        }

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

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

        /* Token比价参考 */
        .token-price-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .token-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .token-info h4 {
            font-size: 16px;
            margin-bottom: 4px;
        }

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

        .token-cost {
            text-align: right;
        }

        .token-cost .price {
            font-size: 20px;
            font-weight: 700;
            color: #10b981;
        }

        .token-cost .unit {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 案例展示 */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .gallery-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .gallery-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: var(--transition);
        }

        .gallery-card:hover img {
            transform: scale(1.05);
        }

        .gallery-info {
            padding: 20px;
        }

        .gallery-info h4 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .gallery-info p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 培训课程板块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .training-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .training-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .training-badge {
            align-self: flex-start;
            background-color: #fef3c7;
            color: #d97706;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 8px;
            border-radius: 4px;
            margin-bottom: 16px;
        }

        .training-card h3 {
            font-size: 18px;
            margin-bottom: 12px;
        }

        .training-card p {
            font-size: 13px;
            color: var(--text-muted);
            flex-grow: 1;
            margin-bottom: 20px;
        }

        .training-org {
            font-size: 12px;
            color: var(--primary);
            font-weight: 500;
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

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

        .comment-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            padding: 24px;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
        }

        .comment-text {
            font-size: 14px;
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
        }

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

        .user-info h4 {
            font-size: 14px;
            margin-bottom: 2px;
        }

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

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

        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            user-select: none;
        }

        .faq-icon {
            transition: var(--transition);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background-color: var(--bg-light);
        }

        .faq-content {
            padding: 20px;
            font-size: 14px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
        }

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

        .faq-item.active .faq-body {
            max-height: 1000px;
            transition: max-height 0.5s ease-in;
        }

        /* 术语百科与知识库 */
        .encyclopedia-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .term-card {
            background-color: var(--bg-white);
            border-left: 4px solid var(--primary);
            padding: 20px;
            border-radius: 0 8px 8px 0;
            box-shadow: var(--shadow-sm);
        }

        .term-card h4 {
            font-size: 16px;
            margin-bottom: 8px;
        }

        .term-card p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 行业资讯 / 知识库 */
        .news-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 20px;
        }

        .news-list li {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            padding: 16px 20px;
            border-radius: 8px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .news-list a {
            color: var(--text-dark);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .news-list a:hover {
            color: var(--primary);
        }

        .news-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 表单区域 */
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .form-info h3 {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .form-info p {
            color: var(--text-muted);
            margin-bottom: 30px;
        }

        .contact-channel {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }

        .channel-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .channel-info h4 {
            font-size: 14px;
            margin-bottom: 2px;
        }

        .channel-info p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .contact-form {
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            padding: 40px;
            border-radius: 16px;
            box-shadow: var(--shadow-md);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.15);
        }

        /* 微信群、客服加盟展示 */
        .promo-banner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: var(--bg-white);
            border-radius: 16px;
            padding: 60px;
            text-align: center;
            margin-top: 40px;
        }

        .promo-container {
            display: flex;
            justify-content: space-around;
            align-items: center;
            flex-wrap: wrap;
            gap: 30px;
        }

        .promo-info {
            max-width: 500px;
            text-align: left;
        }

        .promo-info h3 {
            font-size: 28px;
            margin-bottom: 12px;
        }

        .promo-info p {
            font-size: 15px;
            opacity: 0.9;
        }

        .qr-card {
            background-color: var(--bg-white);
            color: var(--text-dark);
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            width: 180px;
            box-shadow: var(--shadow-md);
        }

        .qr-card img {
            width: 140px;
            height: 140px;
            margin-bottom: 12px;
        }

        .qr-card p {
            font-size: 12px;
            font-weight: 600;
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--bg-white);
            font-size: 16px;
            margin-bottom: 20px;
        }

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

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--bg-white);
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .friend-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .friend-links a {
            color: #64748b;
            text-decoration: none;
            transition: var(--transition);
        }

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

        /* 侧边悬浮窗口 */
        .floating-widget {
            position: fixed;
            bottom: 40px;
            right: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .widget-item {
            width: 50px;
            height: 50px;
            background-color: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            cursor: pointer;
            transition: var(--transition);
            color: var(--primary);
            position: relative;
        }

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

        .widget-qr-box {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--bg-white);
            padding: 12px;
            border-radius: 8px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            display: none;
        }

        .widget-qr-box img {
            width: 120px;
            height: 120px;
        }

        .widget-item:hover .widget-qr-box {
            display: block;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .services-grid, .solutions-grid, .training-grid, .comments-grid, .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background-color: var(--bg-white);
                border-bottom: 1px solid var(--border);
                padding: 20px;
                box-shadow: var(--shadow-md);
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-btns {
                display: none;
            }
            .hero h1 {
                font-size: 28px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .form-grid {
                grid-template-columns: 1fr;
            }
            .services-grid, .solutions-grid, .training-grid, .comments-grid, .gallery-grid, .token-price-list, .encyclopedia-grid, .news-list {
                grid-template-columns: 1fr;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 40px;
                padding-right: 0;
            }
            .timeline-item.right {
                left: 0;
            }
            .timeline-item::after {
                left: 12px;
                right: auto;
            }
            .promo-container {
                flex-direction: column;
                text-align: center;
            }
            .promo-info {
                text-align: center;
            }
        }