:root {
            --primary: #10B981;
            --primary-hover: #059669;
            --primary-light: #D1FAE5;
            --dark: #0F172A;
            --gray-dark: #334155;
            --gray-light: #F8FAFC;
            --border-color: #E2E8F0;
            --text-muted: #64748B;
            --container-width: 1200px;
        }

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

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

        /* 统一容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 头部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
        }

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

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

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

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
            align-items: center;
        }

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

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

        .nav-btn {
            background-color: var(--primary);
            color: white !important;
            padding: 8px 18px;
            border-radius: 6px;
            transition: background-color 0.3s;
        }

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

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

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            transition: 0.3s;
        }

        /* Hero首屏（无图） */
        .hero {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #ECFDF5 0%, #FFFFFF 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 40%;
            height: 40%;
            background: radial-gradient(circle, rgba(16,185,129,0.1) 0%, transparent 70%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            color: var(--dark);
            margin-bottom: 20px;
            font-weight: 800;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--gray-dark);
            margin-bottom: 35px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
        }

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

        .btn-secondary {
            display: inline-block;
            background-color: white;
            color: var(--dark);
            border: 1px solid var(--border-color);
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background-color: var(--gray-light);
            border-color: #cbd5e1;
            transform: translateY(-2px);
        }

        /* 注册送算力提示区 */
        .promo-badge {
            display: inline-flex;
            align-items: center;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 25px;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 50px;
        }

        .stat-card {
            background: white;
            padding: 24px;
            border-radius: 12px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
            transition: transform 0.3s;
        }

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

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

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

        /* 通用区块样式 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border-color);
            background-color: white;
        }

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

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

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--dark);
            margin-bottom: 15px;
            font-weight: 700;
        }

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

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

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

        .about-text p {
            color: var(--gray-dark);
            margin-bottom: 20px;
            line-content: 1.7;
        }

        .about-features {
            list-style: none;
        }

        .about-features li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
            color: var(--gray-dark);
        }

        .about-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        /* 全平台AIGC服务 & 一站式制作 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: white;
            padding: 35px 25px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            text-align: left;
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px -5px rgba(16, 185, 129, 0.1);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-hover);
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

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

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

        /* AIGC模型支持 标签云 */
        .tags-wrapper {
            background-color: white;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            margin-top: 30px;
        }

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

        .tag-item {
            background-color: var(--gray-light);
            color: var(--gray-dark);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            transition: all 0.2s;
        }

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

        /* 全行业解决方案 & 服务网络 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
        }

        .solution-body {
            padding: 30px;
        }

        .solution-body h3 {
            font-size: 1.4rem;
            color: var(--dark);
            margin-bottom: 12px;
        }

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

        /* 标准化AIGC流程 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 15px;
            position: relative;
        }

        .process-step {
            text-align: center;
            background: white;
            padding: 20px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .step-num {
            width: 32px;
            height: 32px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            font-weight: bold;
        }

        .process-step h4 {
            font-size: 1rem;
            margin-bottom: 8px;
            color: var(--dark);
        }

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

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }

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

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .case-content {
            padding: 20px;
        }

        .case-tag {
            display: inline-block;
            font-size: 0.75rem;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
            font-weight: 600;
        }

        .case-content h3 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 8px;
        }

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

        /* 对比评测 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background: white;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
        }

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

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

        .comparison-table th {
            background-color: var(--gray-light);
            font-weight: 700;
            color: var(--dark);
        }

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

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

        .rating-badge {
            background-color: #FEF3C7;
            color: #D97706;
            padding: 6px 12px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.9rem;
            display: inline-block;
        }

        /* Token比价参考 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .price-card {
            background: white;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 30px;
            text-align: center;
            position: relative;
            overflow: hidden;
            transition: all 0.3s;
        }

        .price-card.popular {
            border-color: var(--primary);
            box-shadow: 0 10px 20px rgba(16, 185, 129, 0.08);
        }

        .price-card.popular::before {
            content: '推荐';
            position: absolute;
            top: 15px;
            right: -30px;
            background: var(--primary);
            color: white;
            padding: 4px 30px;
            transform: rotate(45deg);
            font-size: 0.75rem;
            font-weight: bold;
        }

        .price-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark);
        }

        .price-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-hover);
            margin-bottom: 20px;
        }

        .price-num span {
            font-size: 1rem;
            font-weight: normal;
            color: var(--text-muted);
        }

        .price-features {
            list-style: none;
            margin-bottom: 25px;
            text-align: left;
        }

        .price-features li {
            padding: 8px 0;
            color: var(--gray-dark);
            font-size: 0.9rem;
            border-bottom: 1px dashed var(--border-color);
        }

        .price-features li:last-child {
            border-bottom: none;
        }

        /* 职业技术培训 / 人工智能培训 */
        .training-wrapper {
            background: white;
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .training-item {
            background-color: var(--gray-light);
            padding: 24px;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
        }

        .training-item h3 {
            margin-bottom: 10px;
            color: var(--dark);
        }

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

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

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

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

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: transform 0.3s;
        }

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

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

        .faq-answer-content {
            padding: 20px;
            color: var(--gray-dark);
            font-size: 0.95rem;
            border-top: 1px solid var(--border-color);
        }

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

        .comment-card {
            background: white;
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.01);
        }

        .comment-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }

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

        .comment-info h4 {
            font-size: 1rem;
            color: var(--dark);
        }

        .comment-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .comment-text {
            color: var(--gray-dark);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
        }

        .news-item {
            background: white;
            border-radius: 10px;
            border: 1px solid var(--border-color);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .news-item h3 {
            font-size: 1.15rem;
            color: var(--dark);
            margin-bottom: 12px;
        }

        .news-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .news-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

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

        /* 智能需求匹配 / 表单 & 联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info {
            background-color: var(--dark);
            color: white;
            padding: 40px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-info-top h3 {
            font-size: 1.8rem;
            margin-bottom: 15px;
            color: white;
        }

        .contact-info-top p {
            color: #94A3B8;
            margin-bottom: 30px;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-detail-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .contact-detail-icon {
            width: 40px;
            height: 40px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .contact-detail-text h4 {
            font-size: 0.85rem;
            color: #94A3B8;
        }

        .contact-detail-text p {
            font-weight: 600;
        }

        .contact-qr-wrapper {
            display: flex;
            gap: 20px;
            align-items: center;
            margin-top: 30px;
            background: rgba(255,255,255,0.05);
            padding: 15px;
            border-radius: 8px;
        }

        .contact-qr {
            width: 80px;
            height: 80px;
            background: white;
            padding: 4px;
            border-radius: 4px;
        }

        .contact-qr img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .contact-qr-text p {
            font-size: 0.9rem;
            color: white;
            font-weight: 600;
        }

        .contact-qr-text span {
            font-size: 0.8rem;
            color: #94A3B8;
        }

        .contact-form-wrap {
            background: white;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            padding: 40px;
        }

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

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 0.95rem;
            transition: border-color 0.3s;
        }

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

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            background-size: 16px;
            padding-right: 40px;
        }

        .form-btn {
            width: 100%;
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 14px;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .form-btn:hover {
            background-color: var(--primary-hover);
        }

        /* 友情链接与页脚 */
        footer {
            background-color: #0F172A;
            color: #94A3B8;
            padding: 60px 0 30px;
            border-top: 1px solid #1E293B;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .ai-page-logo {
            
            margin-bottom: 20px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .footer-col h4 {
            color: white;
            font-size: 1rem;
            margin-bottom: 20px;
            font-weight: 600;
        }

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

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

        .footer-links a {
            color: #94A3B8;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s;
        }

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

        .friend-links {
            border-top: 1px solid #1E293B;
            padding: 25px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friend-links span {
            font-size: 0.85rem;
            color: white;
            font-weight: 600;
        }

        .friend-links a {
            color: #94A3B8;
            text-decoration: none;
            font-size: 0.85rem;
            transition: color 0.3s;
        }

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

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 25px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* 侧边悬浮组件 */
        .floating-widget {
            position: fixed;
            right: 20px;
            bottom: 40px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
            position: relative;
            transition: all 0.3s;
        }

        .float-btn:hover {
            background-color: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        .float-btn svg {
            width: 20px;
            height: 20px;
            fill: currentColor;
        }

        .float-qr-box {
            position: absolute;
            right: 60px;
            bottom: 0;
            width: 140px;
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
        }

        .float-qr-box img {
            width: 100%;
            height: auto;
            border-radius: 4px;
        }

        .float-qr-box p {
            font-size: 0.75rem;
            color: var(--dark);
            margin-top: 5px;
            font-weight: 600;
        }

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

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-flow {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: white;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: 0 4px 6px rgba(0,0,0,0.05);
            }

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

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .about-grid, .solutions-grid, .contact-grid, .footer-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid, .services-grid, .case-grid, .price-grid, .training-grid, .comments-grid, .news-grid {
                grid-template-columns: 1fr;
            }

            .process-flow {
                grid-template-columns: 1fr;
            }

            .about-grid {
                gap: 30px;
            }

            .contact-info {
                padding: 30px 20px;
            }
        }