:root {
            --bg-color: #080512;
            --card-bg: rgba(20, 16, 38, 0.7);
            --card-border: rgba(255, 42, 133, 0.2);
            --card-border-focus: rgba(0, 240, 255, 0.4);
            --text-main: #ffffff;
            --text-muted: #a6a2c0;
            --primary: #ff2a85;
            --secondary: #8a2be2;
            --accent: #00f0ff;
            --gradient-primary: linear-gradient(135deg, #ff2a85 0%, #8a2be2 100%);
            --gradient-accent: linear-gradient(135deg, #00f0ff 0%, #8a2be2 100%);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            font-family: var(--font-family);
            overflow-x: hidden;
            line-height: 1.6;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(138, 43, 226, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(255, 42, 133, 0.12) 0%, transparent 40%);
            background-attachment: fixed;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 5, 18, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: all 0.3s ease;
        }

        .nav-container {
            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;
            width: auto;
        }

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

        .nav-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }

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

        .nav-btn {
            background: var(--gradient-primary);
            color: #fff;
            padding: 8px 18px;
            border-radius: 30px;
            text-decoration: none;
            font-size: 14px;
            font-weight: bold;
            box-shadow: 0 0 15px rgba(255, 42, 133, 0.4);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(255, 42, 133, 0.7);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
        }

        /* Hero 首屏（无图设计） */
        .hero {
            padding: 150px 0 100px;
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 300px;
            height: 300px;
            background: var(--gradient-primary);
            filter: blur(130px);
            opacity: 0.3;
            z-index: -1;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(255, 42, 133, 0.1);
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: 44px;
            line-height: 1.2;
            font-weight: 800;
            background: linear-gradient(to right, #fff 30%, #ff2a85 70%, #00f0ff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 24px;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 35px;
        }

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

        .btn-primary {
            background: var(--gradient-primary);
            color: #fff;
            padding: 15px 35px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: bold;
            font-size: 16px;
            box-shadow: 0 0 20px rgba(255, 42, 133, 0.5);
            transition: all 0.3s;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 35px rgba(255, 42, 133, 0.8);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #fff;
            padding: 15px 35px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: bold;
            font-size: 16px;
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
        }

        /* 统一的区块结构 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
        }

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

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 15px;
            background: linear-gradient(to right, #fff, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

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

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 16px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            transition: all 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 15px 30px rgba(0, 240, 255, 0.15);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 10px;
        }

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

        /* 关于我们与平台介绍 */
        .about-content {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }

        .about-info h3 {
            font-size: 24px;
            color: #fff;
            margin-bottom: 20px;
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }

        .about-info p {
            color: var(--text-muted);
            margin-bottom: 15px;
            font-size: 15px;
        }

        .platform-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }

        .feature-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 12px;
        }

        .feature-item h4 {
            color: var(--accent);
            font-size: 16px;
            margin-bottom: 8px;
        }

        .feature-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        /* 服务与制作场景 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient-primary);
            opacity: 0;
            transition: opacity 0.3s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--card-border-focus);
            box-shadow: 0 10px 25px rgba(138, 43, 226, 0.2);
        }

        .service-card:hover::after {
            opacity: 1;
        }

        .service-icon {
            font-size: 32px;
            margin-bottom: 20px;
            color: var(--primary);
        }

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

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tags span {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 支持模型标签云 */
        .model-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-top: 30px;
        }

        .model-tag {
            background: rgba(138, 43, 226, 0.1);
            border: 1px solid rgba(138, 43, 226, 0.3);
            color: #fff;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 14px;
            transition: all 0.3s;
        }

        .model-tag:hover {
            background: var(--gradient-primary);
            border-color: transparent;
            box-shadow: 0 0 15px rgba(255, 42, 133, 0.4);
            transform: scale(1.05);
        }

        /* 解决方案与流程 */
        .solutions-tabs {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
            margin-bottom: 30px;
        }

        .sol-tab {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .sol-tab.active, .sol-tab:hover {
            background: var(--gradient-primary);
            color: #fff;
            border-color: transparent;
        }

        .timeline {
            position: relative;
            max-width: 800px;
            margin: 40px auto 0;
            padding-left: 30px;
            border-left: 2px solid var(--primary);
        }

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

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -37px;
            top: 5px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--bg-color);
            border: 3px solid var(--accent);
        }

        .timeline-content h3 {
            color: var(--accent);
            font-size: 18px;
            margin-bottom: 8px;
        }

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

        /* 对比评测表格 */
        .comparison-table-wrapper {
            overflow-x: auto;
            margin-top: 30px;
            border-radius: 12px;
            border: 1px solid var(--card-border);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .comparison-table th, .comparison-table td {
            padding: 15px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .comparison-table th {
            background: rgba(255, 42, 133, 0.1);
            color: #fff;
            font-weight: 600;
        }

        .comparison-table tr:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .comparison-table td:nth-child(2) {
            color: var(--accent);
            font-weight: bold;
        }

        .rating-box {
            background: rgba(255, 42, 133, 0.15);
            border: 1px solid var(--primary);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            margin-top: 30px;
        }

        .rating-val {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
        }

        /* 案例展示区 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .case-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s;
        }

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

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background: #151128;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-body {
            padding: 20px;
        }

        .case-body h3 {
            font-size: 18px;
            color: #fff;
            margin-bottom: 8px;
        }

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

        /* 用户评论区 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 25px;
            border-radius: 12px;
            position: relative;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 15px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 14px;
        }

        .user-info h4 {
            font-size: 14px;
            color: #fff;
        }

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

        /* 需求匹配与联系我们表单 */
        .contact-section-wrapper {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }

        .contact-info-list {
            list-style: none;
        }

        .contact-info-list li {
            margin-bottom: 20px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-icon {
            color: var(--accent);
            font-size: 20px;
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 25px;
        }

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

        .qr-item img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            border: 1px solid var(--card-border);
            padding: 5px;
            background: #fff;
        }

        .qr-item p {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 8px;
        }

        .form-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            padding: 35px;
            border-radius: 16px;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 14px;
            color: #fff;
        }

        .form-control {
            width: 100%;
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 12px;
            color: #fff;
            font-size: 14px;
            transition: all 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
        }

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

        .faq-item {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            margin-bottom: 12px;
            border-radius: 8px;
            overflow: hidden;
        }

        .faq-question {
            padding: 18px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: #fff;
            transition: background 0.3s;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease-out;
            color: var(--text-muted);
            font-size: 14px;
        }

        .faq-item.active .faq-answer {
            padding: 15px 20px 20px;
            max-height: 200px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* 知识库资讯 */
        .article-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h3 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card a {
            color: var(--accent);
            text-decoration: none;
            font-size: 13px;
            font-weight: bold;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 15px;
        }

        .article-card a:hover {
            text-decoration: underline;
        }

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

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            text-decoration: none;
            box-shadow: 0 5px 15px rgba(255, 42, 133, 0.4);
            cursor: pointer;
            position: relative;
            transition: all 0.3s;
        }

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

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-color);
            border: 1px solid var(--primary);
            padding: 15px;
            border-radius: 8px;
            display: none;
            text-align: center;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.8);
        }

        .qr-popover img {
            width: 100px;
            height: 100px;
        }

        .qr-popover p {
            font-size: 12px;
            margin-top: 5px;
            color: #fff;
            white-space: nowrap;
        }

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

        /* 友情链接与页脚 */
        footer {
            background: #04020a;
            padding: 60px 0 30px;
            font-size: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

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

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

        .footer-logo img {
            height: 35px;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 13px;
        }

        .footer-column h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 16px;
        }

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

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

        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.3s;
        }

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

        .friend-links {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            margin-top: 20px;
            text-align: center;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            font-size: 13px;
            margin-top: 10px;
        }

        .friend-links-list a {
            color: var(--text-muted);
            text-decoration: none;
        }

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

        .copyright {
            text-align: center;
            color: rgba(255, 255, 255, 0.3);
            font-size: 12px;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-content {
                grid-template-columns: 1fr;
            }
            .solutions-tabs {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .contact-section-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #080512;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                padding: 20px;
                gap: 15px;
            }
            .nav-links.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .hero h1 {
                font-size: 32px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .article-list {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }