:root {
            --primary: #00b4d8;
            --primary-hover: #0077b6;
            --secondary: #57cc99;
            --bg-light: #f4f9f8;
            --bg-card: #ffffff;
            --text-main: #2d3748;
            --text-muted: #718096;
            --border-color: #e2e8f0;
            --gradient: linear-gradient(135deg, #00b4d8 0%, #57cc99 100%);
            --gradient-light: linear-gradient(135deg, rgba(0, 180, 216, 0.05) 0%, rgba(87, 204, 153, 0.05) 100%);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            --shadow-hover: 0 10px 30px rgba(0, 180, 216, 0.12);
            --container-width: 1200px;
        }

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

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

        ul {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 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: 1000;
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .brand-name {
            font-size: 1.25rem;
            font-weight: 700;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
        }

        .nav-link {
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 5px 10px;
            border-radius: 4px;
        }

        .nav-link:hover {
            color: var(--primary);
            background-color: rgba(0, 180, 216, 0.05);
        }

        .nav-btn {
            background: var(--gradient);
            color: #ffffff !important;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(0, 180, 216, 0.2);
        }

        .nav-btn:hover {
            opacity: 0.9;
            transform: translateY(-1px);
        }

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

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            border-radius: 3px;
            transition: 0.3s;
        }

        /* 移动端侧边菜单 */
        .mobile-menu {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background-color: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            padding: 20px;
            display: none;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
            box-shadow: var(--shadow);
        }

        /* Hero首屏 - 严禁包含任何图片 */
        .hero {
            position: relative;
            padding: 100px 0 80px;
            background: radial-gradient(circle at 80% 20%, rgba(87, 204, 153, 0.1) 0%, transparent 50%),
                        radial-gradient(circle at 20% 80%, rgba(0, 180, 216, 0.1) 0%, transparent 50%),
                        #ffffff;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background-color: rgba(0, 180, 216, 0.08);
            color: var(--primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 25px;
            border: 1px solid rgba(0, 180, 216, 0.15);
            animation: pulse 2s infinite;
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 800;
            color: #1a202c;
            max-width: 900px;
            margin: 0 auto 20px;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 35px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .btn-primary {
            background: var(--gradient);
            color: #ffffff;
            padding: 14px 35px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.05rem;
            box-shadow: 0 6px 20px rgba(0, 180, 216, 0.25);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(0, 180, 216, 0.35);
            color: #ffffff;
        }

        .btn-secondary {
            background-color: #ffffff;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            padding: 14px 35px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.05rem;
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background-color: #f7fafc;
            border-color: var(--text-muted);
        }

        /* 核心指标卡片 */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .stat-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 12px;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease;
        }

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

        .stat-val {
            font-size: 2rem;
            font-weight: 700;
            background: var(--gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

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

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #1a202c;
            margin-bottom: 15px;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background: var(--gradient);
            margin: 10px auto 0;
            border-radius: 2px;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.6rem;
            margin-bottom: 15px;
            color: #1a202c;
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .about-highlights {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .highlight-item {
            padding: 15px;
            background-color: var(--bg-card);
            border-left: 4px solid var(--primary);
            border-radius: 0 8px 8px 0;
            box-shadow: var(--shadow);
        }

        .highlight-title {
            font-weight: 700;
            margin-bottom: 5px;
            font-size: 0.95rem;
        }

        .highlight-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .about-aside {
            background: var(--gradient-light);
            border: 1px solid rgba(0, 180, 216, 0.15);
            padding: 30px;
            border-radius: 16px;
            text-align: center;
        }

        .about-aside h4 {
            font-size: 1.25rem;
            margin-bottom: 15px;
        }

        /* AIGC服务体系 */
        .platform-cloud {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
            margin-top: 30px;
            box-shadow: var(--shadow);
        }

        .platform-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            text-align: center;
        }

        .tags-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .platform-tag {
            padding: 8px 16px;
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.3s ease;
            color: var(--text-main);
        }

        .platform-tag:hover {
            background: var(--gradient);
            color: #ffffff;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* 服务能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .service-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 12px;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 180, 216, 0.3);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            background: var(--gradient-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-name {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

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

        /* 制作流程 & 服务网络 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }

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

        .timeline-item {
            margin-bottom: 40px;
            position: relative;
            width: 50%;
            padding: 0 30px;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-badge {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--gradient);
            position: absolute;
            top: 5px;
            z-index: 10;
        }

        .timeline-item:nth-child(odd) .timeline-badge {
            right: -10px;
        }

        .timeline-item:nth-child(even) .timeline-badge {
            left: -10px;
        }

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

        .timeline-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--primary);
        }

        /* 软件/平台介绍 */
        .software-section {
            background-color: var(--bg-card);
        }

        .software-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .feature-list {
            margin-top: 25px;
            display: grid;
            gap: 15px;
        }

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

        .feature-check {
            color: var(--secondary);
            font-weight: 700;
        }

        /* 案例中心 - 素材图展示 */
        .gallery-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 20px;
            margin-bottom: 30px;
        }

        .gallery-main {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .gallery-sub {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .image-container {
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow);
            position: relative;
        }

        .image-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }

        .image-container:hover img {
            transform: scale(1.03);
        }

        .image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
            padding: 20px;
            color: #ffffff;
        }

        .image-overlay h4 {
            font-size: 1.1rem;
            font-weight: 700;
        }

        .image-overlay p {
            font-size: 0.85rem;
            opacity: 0.8;
        }

        /* 对比评测 */
        .review-box {
            background: var(--gradient-light);
            border: 1px solid rgba(0, 180, 216, 0.2);
            border-radius: 16px;
            padding: 30px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 40px;
        }

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

        .score-val {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary);
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background-color: var(--bg-card);
        }

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

        th, td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }

        th {
            background-color: #f7fafc;
            font-weight: 700;
        }

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

        .highlight-row {
            background-color: rgba(0, 180, 216, 0.02);
            font-weight: 600;
        }

        /* Token比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .token-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: all 0.3s ease;
        }

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

        .token-name {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

        .token-price {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 5px;
        }

        /* 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary);
        }

        .training-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        /* 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }

        .review-text {
            font-style: italic;
            color: var(--text-muted);
            margin-bottom: 15px;
            font-size: 0.95rem;
        }

        .review-user {
            font-weight: 700;
            font-size: 0.9rem;
        }

        .review-role {
            font-size: 0.8rem;
            color: var(--primary);
        }

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

        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.3rem;
            color: var(--text-muted);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question::after {
            content: '−';
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background-color: #fafbfc;
        }

        .faq-answer-inner {
            padding: 20px;
            border-top: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
        }

        /* 需求表单 */
        .form-section {
            background-color: var(--bg-card);
        }

        .form-container {
            max-width: 700px;
            margin: 0 auto;
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 16px;
            box-shadow: var(--shadow);
        }

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

        .form-group label {
            display: block;
            font-weight: 700;
            margin-bottom: 8px;
            font-size: 0.9rem;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-family: inherit;
            transition: border-color 0.3s;
        }

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

        /* 文章与资讯 */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }

        .article-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
        }

        .article-card:hover {
            transform: translateY(-3px);
            border-color: var(--primary);
        }

        .article-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .article-title a {
            color: var(--text-main);
        }

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

        .article-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        /* 网站术语百科 */
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        .glossary-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
        }

        .glossary-term {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        /* 页脚 & 友情链接 */
        footer {
            background-color: #1a202c;
            color: #a0aec0;
            padding: 60px 0 30px;
            font-size: 0.9rem;
            border-top: 1px solid #2d3748;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo-area {
            margin-bottom: 15px;
        }

        .footer-title {
            color: #ffffff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 20px;
        }

        .footer-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

        .footer-links a {
            color: #a0aec0;
        }

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

        .footer-contact p {
            margin-bottom: 8px;
        }

        .footer-qr {
            display: flex;
            gap: 20px;
            align-items: center;
            margin-top: 15px;
        }

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

        .qr-box img {
            width: 80px;
            height: 80px;
            border-radius: 4px;
            margin-bottom: 5px;
        }

        .qr-box span {
            display: block;
            font-size: 0.75rem;
        }

        .friend-links {
            border-top: 1px solid #2d3748;
            padding: 20px 0;
            margin-bottom: 20px;
        }

        .friend-links-title {
            font-size: 0.85rem;
            margin-bottom: 10px;
        }

        .friend-links-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links-wrapper a {
            color: #718096;
            font-size: 0.85rem;
        }

        .friend-links-wrapper a:hover {
            color: #ffffff;
        }

        .copyright-area {
            border-top: 1px solid #2d3748;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        /* 浮动客服 */
        .float-service {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0, 180, 216, 0.3);
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .float-qr-pop {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: var(--shadow-hover);
            display: none;
            text-align: center;
            color: var(--text-main);
        }

        .float-qr-pop img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }

        .float-qr-pop span {
            font-size: 0.8rem;
            white-space: nowrap;
        }

        .float-btn:hover .float-qr-pop {
            display: block;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.3rem;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid, .software-wrapper {
                grid-template-columns: 1fr;
            }
            .gallery-grid {
                grid-template-columns: 1fr;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
                text-align: left !important;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
            .timeline-badge {
                left: 10px !important;
            }
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(0, 180, 216, 0.4);
            }
            70% {
                box-shadow: 0 0 0 8px rgba(0, 180, 216, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(0, 180, 216, 0);
            }
        }