:root {
            --primary: #8b5cf6;
            --primary-light: #a78bfa;
            --secondary: #ec4899;
            --accent: #06b6d4;
            --dark: #0f172a;
            --light: #f8fafc;
            --gray: #64748b;
            --success: #10b981;
            --glass-bg: rgba(255, 255, 255, 0.85);
            --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #ec4899 50%, #06b6d4 100%);
            --card-shadow: 0 10px 30px -10px rgba(139, 92, 246, 0.15);
        }

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

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

        /* 统一外层居中容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            transition: all 0.3s ease;
        }

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

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

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

        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s ease;
        }

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

        .nav-btn {
            background: var(--gradient-primary);
            color: white !important;
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
        }

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

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--dark);
            border-radius: 2px;
            transition: 0.3s;
        }

        /* Hero首屏 - 艳彩无图设计 */
        .hero {
            padding: 160px 0 100px 0;
            background: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(236, 72, 153, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(255,255,255,0) 80%, var(--light) 100%);
            pointer-events: none;
        }

        .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(139, 92, 246, 0.1);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 24px;
            border: 1px solid rgba(139, 92, 246, 0.2);
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }

        .hero-title {
            font-size: 2.8rem;
            line-height: 1.25;
            font-weight: 850;
            color: var(--dark);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

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

        .hero-desc {
            font-size: 1.15rem;
            color: var(--gray);
            max-width: 760px;
            margin: 0 auto 40px auto;
        }

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

        .btn-primary {
            background: var(--gradient-primary);
            color: white;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(139, 92, 246, 0.35);
            transition: all 0.3s;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(139, 92, 246, 0.5);
        }

        .btn-secondary {
            background: white;
            color: var(--dark);
            border: 2px solid rgba(15, 23, 42, 0.1);
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            text-decoration: none;
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background: var(--dark);
            color: white;
            border-color: var(--dark);
            transform: translateY(-3px);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 60px;
        }

        .stat-card {
            background: white;
            padding: 24px;
            border-radius: 20px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
            transition: transform 0.3s;
        }

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

        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--gray);
            font-weight: 600;
        }

        /* 模块基础样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 50px auto;
        }

        .section-tag {
            color: var(--secondary);
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 16px;
        }

        .section-desc {
            color: var(--gray);
            font-size: 1rem;
        }

        /* 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--dark);
        }

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

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

        .feature-icon-bullet {
            width: 24px;
            height: 24px;
            background: rgba(139, 92, 246, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
            font-weight: bold;
            font-size: 0.8rem;
        }

        /* 全平台AIGC服务 + 模型聚合 */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: white;
            padding: 32px;
            border-radius: 24px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
            transition: all 0.3s ease;
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary-light);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background: var(--gradient-primary);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            margin-bottom: 24px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .model-list-wrapper {
            margin-top: 40px;
            background: #fff;
            padding: 30px;
            border-radius: 24px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
        }

        .model-list-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-align: center;
            color: var(--dark);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
        }

        .tag-cloud span {
            background: var(--light);
            border: 1px solid rgba(226, 232, 240, 0.8);
            color: var(--dark);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all 0.2s;
        }

        .tag-cloud span:hover {
            background: var(--gradient-primary);
            color: white;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* 行业解决方案与流程 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: white;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
        }

        .solution-body {
            padding: 30px;
        }

        .solution-body h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }

        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
            position: relative;
        }

        .step-item {
            background: white;
            padding: 24px;
            border-radius: 20px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            position: relative;
            z-index: 2;
        }

        .step-number {
            width: 36px;
            height: 36px;
            background: var(--gradient-primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .step-item h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--gray);
        }

        /* 对比评测 */
        .comparison-table-wrapper {
            background: white;
            border-radius: 24px;
            overflow-x: auto;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
        }

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

        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            font-size: 0.95rem;
        }

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

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

        .highlight-col {
            background: rgba(139, 92, 246, 0.03);
            font-weight: 600;
        }

        .rating-badge {
            display: inline-block;
            background: linear-gradient(135deg, #f59e0b 0%, #ec4899 100%);
            color: white;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
        }

        /* Token比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .token-card {
            background: white;
            border-radius: 20px;
            padding: 24px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            text-align: center;
        }

        .token-price {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            margin: 16px 0;
        }

        .token-price span {
            font-size: 0.9rem;
            color: var(--gray);
            font-weight: 400;
        }

        /* 案例与素材 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
        }

        .case-image-container {
            position: relative;
            padding-bottom: 56.25%; /* 16:9 */
            background: #e2e8f0;
            overflow: hidden;
        }

        .case-image-container img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .case-body {
            padding: 24px;
        }

        .case-body h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .case-body p {
            color: var(--gray);
            font-size: 0.88rem;
        }

        /* 培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .training-card {
            background: white;
            border-radius: 16px;
            padding: 20px;
            text-align: center;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
            transition: all 0.3s;
        }

        .training-card:hover {
            border-color: var(--secondary);
            transform: translateY(-5px);
        }

        .training-badge {
            background: rgba(236, 72, 153, 0.1);
            color: var(--secondary);
            font-size: 0.75rem;
            padding: 4px 8px;
            border-radius: 4px;
            font-weight: 700;
            margin-bottom: 12px;
            display: inline-block;
        }

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

        .review-card {
            background: white;
            padding: 24px;
            border-radius: 20px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
        }

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

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .review-meta h5 {
            font-size: 0.95rem;
            color: var(--dark);
        }

        .review-meta span {
            font-size: 0.75rem;
            color: var(--gray);
        }

        .review-text {
            font-size: 0.9rem;
            color: var(--gray);
            font-style: italic;
        }

        /* FAQ折叠面板 */
        .faq-container {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: white;
            border-radius: 12px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            overflow: hidden;
        }

        .faq-header {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            user-select: none;
            transition: background 0.2s;
        }

        .faq-header:hover {
            background: var(--light);
        }

        .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
            color: var(--primary);
        }

        .faq-content {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s cubic-bezier(0,1,0,1);
            color: var(--gray);
            font-size: 0.95rem;
            border-top: 0px solid transparent;
        }

        .faq-item.active .faq-content {
            padding: 18px 24px;
            max-height: 1000px;
            border-top: 1px solid rgba(226, 232, 240, 0.8);
        }

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

        /* 需求匹配与表单 */
        .form-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .contact-form {
            background: white;
            padding: 40px;
            border-radius: 24px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid rgba(226, 232, 240, 1);
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
        }

        .form-control:focus {
            border-color: var(--primary);
        }

        .form-side-info {
            background: white;
            padding: 40px;
            border-radius: 24px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .qr-card {
            text-align: center;
            background: var(--light);
            padding: 20px;
            border-radius: 16px;
            border: 1px dashed rgba(226, 232, 240, 1);
        }

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

        /* 资讯文章 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .article-card {
            background: white;
            border-radius: 16px;
            padding: 20px;
            border: 1px solid rgba(226, 232, 240, 0.8);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-height: 180px;
        }

        .article-card h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .article-link {
            color: var(--primary);
            text-decoration: none;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        /* 浮动客服 */
        .float-contact {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient-primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
            cursor: pointer;
            text-decoration: none;
            position: relative;
        }

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

        .qr-hover {
            display: none;
            position: absolute;
            bottom: 60px;
            right: 0;
            background: white;
            padding: 16px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(226, 232, 240, 0.8);
            text-align: center;
        }

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

        /* 页脚 */
        footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px 0;
        }

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

        .footer-col h4 {
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
        }

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

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

        .footer-col ul li a {
            color: #cbd5e1;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #94a3b8;
            flex-wrap: wrap;
            gap: 20px;
        }

        .friend-links a {
            color: #94a3b8;
            text-decoration: none;
            margin-right: 15px;
        }

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

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid, .solutions-grid, .case-grid, .review-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .about-grid, .form-grid {
                grid-template-columns: 1fr;
            }
            .steps-container {
                grid-template-columns: 1fr;
            }
            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid #e2e8f0;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
        }

        @media (max-width: 480px) {
            .stats-grid, .service-grid, .solutions-grid, .case-grid, .review-grid, .training-grid, .articles-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }