:root {
            --primary-grad: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
            --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);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: 0 1px 10px rgba(0, 0, 0, 0.03);
            border-bottom: 1px solid var(--border-color);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }

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

        .logo-box img {
            height: 40px;
            width: auto;
        }

        .logo-box span {
            font-weight: 800;
            font-size: 1.3rem;
            background: var(--primary-grad);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu a {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .nav-menu a:hover {
            color: #a855f7;
        }

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

        .mobile-menu-btn span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Hero 首屏 (无图设计，炫彩渐变背景装饰) */
        .hero {
            padding: 160px 20px 100px;
            position: relative;
            background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, rgba(236, 72, 153, 0.05) 90.2%);
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(168, 85, 247, 0.03) 0%, transparent 60%);
            animation: rotateBg 20s linear infinite;
            pointer-events: none;
        }

        @keyframes rotateBg {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

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

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(168, 85, 247, 0.1);
            color: #a855f7;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(168, 85, 247, 0.2);
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 24px;
            background: var(--primary-grad);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 40px;
        }

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

        .btn-gradient {
            padding: 14px 32px;
            background: var(--primary-grad);
            color: #fff;
            border-radius: 30px;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(168, 85, 247, 0.4);
        }

        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(168, 85, 247, 0.6);
        }

        .btn-outline {
            padding: 14px 32px;
            background: #fff;
            color: var(--text-dark);
            border: 2px solid var(--border-color);
            border-radius: 30px;
            font-weight: 600;
        }

        .btn-outline:hover {
            border-color: #a855f7;
            color: #a855f7;
            transform: translateY(-2px);
        }

        /* 全局容器与板块 */
        .section-padding {
            padding: 80px 20px;
        }

        .section-container {
            max-width: 1200px;
            margin: 0 auto;
        }

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

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 750;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--primary-grad);
            border-radius: 2px;
        }

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

        /* 1. 数据指标卡片 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
            margin-top: 40px;
        }

        .metric-card {
            background: #fff;
            padding: 30px 20px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-5px);
            border-color: #a855f7;
        }

        .metric-card h3 {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--primary-grad);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }

        .metric-card p {
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 2. 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(--text-dark);
        }

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

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

        .about-gallery img {
            border-radius: 12px;
            width: 100%;
            height: 100%;
            object-fit: cover;
            box-shadow: var(--card-shadow);
        }

        /* 3. 全平台AIGC服务体系 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: #fff;
            padding: 40px 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: #ec4899;
        }

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

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

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

        /* 4. 流程与时间线 */
        .workflow-timeline {
            position: relative;
            max-width: 800px;
            margin: 40px auto 0;
            padding-left: 30px;
            border-left: 2px solid var(--border-color);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 40px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -39px;
            top: 5px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary-grad);
            border: 3px solid #fff;
        }

        .timeline-item h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .timeline-item p {
            color: var(--text-muted);
        }

        /* 5. 解决方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 25px;
        }

        .solution-item {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            transition: var(--transition);
        }

        .solution-item:hover {
            background: #fff;
            border-color: #6366f1;
            box-shadow: var(--card-shadow);
        }

        /* 6. 全国服务网络 */
        .network-map {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .network-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 30px;
        }

        .network-tag {
            padding: 8px 16px;
            background: var(--bg-light);
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
        }

        /* 7. 技术标准 */
        .tech-table-wrapper {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
            background: #fff;
        }

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

        .tech-table th, .tech-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .tech-table th {
            background: #f1f5f9;
            font-weight: 700;
            color: var(--text-dark);
        }

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

        /* 8. 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

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

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

        .case-image-box {
            position: relative;
            overflow: hidden;
        }

        .case-image-box img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

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

        .case-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }

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

        /* 9. 对比评测 */
        .eval-section {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(236, 72, 153, 0.03) 100%);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid rgba(168, 85, 247, 0.1);
        }

        .eval-rating {
            text-align: center;
            margin-bottom: 40px;
        }

        .rating-num {
            font-size: 4rem;
            font-weight: 900;
            background: var(--primary-grad);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1;
        }

        .rating-stars {
            color: #f59e0b;
            font-size: 1.5rem;
            margin: 10px 0;
        }

        /* 10. Token比价与模型平台标签云 */
        .token-cloud-box {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 40px;
        }

        .platform-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-content: flex-start;
        }

        .platform-tag {
            padding: 8px 14px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .platform-tag:hover {
            border-color: #a855f7;
            background: rgba(168, 85, 247, 0.05);
            transform: translateY(-2px);
        }

        /* 11. FAQ 折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: #a855f7;
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            content: '−';
            transform: rotate(180deg);
        }

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

        .faq-answer-content {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* 12. 客户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 25px;
        }

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

        .review-text {
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .user-info h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }

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

        /* 13. 表单 & 联系我们 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }

        .form-card {
            background: #fff;
            padding: 40px;
            border-radius: 24px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .form-group label {
            font-weight: 600;
            font-size: 0.9rem;
        }

        .form-group input, .form-group select, .form-group textarea {
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-family: inherit;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: #a855f7;
            box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.1);
        }

        .info-card {
            background: #fff;
            padding: 40px;
            border-radius: 24px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .qr-box {
            text-align: center;
            border: 1px dashed var(--border-color);
            padding: 20px;
            border-radius: 12px;
        }

        .qr-box img {
            width: 150px;
            height: 150px;
            object-fit: cover;
            margin-bottom: 10px;
        }

        /* 14. 行业资讯 / 知识库 */
        .articles-list {
            margin-top: 30px;
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            padding: 20px;
            box-shadow: var(--card-shadow);
        }

        .article-item {
            padding: 15px 10px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .article-item:last-child {
            border-bottom: none;
        }

        .article-item a {
            font-weight: 500;
            color: var(--text-dark);
        }

        .article-item a:hover {
            color: #a855f7;
        }

        /* 浮动客服 */
        .floating-service {
            position: fixed;
            bottom: 40px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: #fff;
            border-radius: 50%;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .float-btn:hover {
            background: var(--primary-grad);
            color: #fff;
            transform: translateY(-3px);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .float-qr-hover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            border: 1px solid var(--border-color);
        }

        .float-qr-hover img {
            width: 120px;
            height: 120px;
        }

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

        /* 页脚 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 20px 30px;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo span {
            font-weight: 800;
            font-size: 1.5rem;
            color: #fff;
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

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

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

        .footer-col ul li a:hover {
            color: #fff;
        }

        .friendly-links {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 20px;
            border-top: 1px solid #1e293b;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
        }

        .friendly-links a {
            color: #64748b;
        }

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

        .footer-bottom {
            max-width: 1200px;
            margin: 20px auto 0;
            text-align: center;
            font-size: 0.85rem;
            color: #475569;
        }

        /* 移动端响应式适配 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .about-grid, .contact-layout, .token-cloud-box {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                border-top: 1px solid var(--border-color);
            }
            .nav-menu.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: flex;
            }
        }

        @media (max-width: 576px) {
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
        }