* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Microsoft YaHei', Arial, sans-serif;
            background-color: #0a0a0a;
            color: #ffffff;
            line-height: 1.6;
        }
        
        /* 顶部导航 */
        .top-bar {
            background: linear-gradient(90deg, #1a1a2e, #16213e);
            padding: 10px 0;
            font-size: 12px;
            color: #888;
        }
        
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .top-bar a {
            color: #00d4ff;
            text-decoration: none;
            margin-left: 20px;
        }
        
        .top-bar a:hover {
            color: #ff6b35;
        }
        
        /* 主容器 */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 头部 */
        header {
            background: linear-gradient(135deg, #0f0f23 0%, #1a1a3e 50%, #0f0f23 100%);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 212, 255, 0.3);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo-icon {
            width: 50px;
            height: 50px;
            background: linear-gradient(45deg, #ff6b35, #f7931e);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: bold;
            margin-right: 15px;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { box-shadow: 0 0 10px #ff6b35; }
            50% { box-shadow: 0 0 30px #ff6b35, 0 0 60px #ff6b35; }
        }
        
        .logo-text h1 {
            font-size: 28px;
            background: linear-gradient(90deg, #00d4ff, #ff6b35);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .logo-text span {
            font-size: 12px;
            color: #888;
        }
        
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 30px;
        }
        
        nav ul li a {
            color: #fff;
            text-decoration: none;
            font-size: 16px;
            transition: all 0.3s;
            position: relative;
        }
        
        nav ul li a:hover {
            color: #00d4ff;
        }
        
        nav ul li a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: #00d4ff;
            transition: width 0.3s;
        }
        
        nav ul li a:hover::after {
            width: 100%;
        }
        
        /* 英雄区域 */
        .hero {
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 600"><defs><linearGradient id="grad" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:%231a1a3e"/><stop offset="50%" style="stop-color:%230f0f23"/><stop offset="100%" style="stop-color:%231a1a3e"/></linearGradient></defs><rect fill="url(%23grad)" width="1440" height="600"/><circle cx="200" cy="150" r="100" fill="%2300d4ff" opacity="0.1"/><circle cx="1200" cy="400" r="150" fill="%23ff6b35" opacity="0.1"/><polygon points="720,0 800,200 640,200" fill="%2300d4ff" opacity="0.05"/></svg>') no-repeat center;
            background-size: cover;
            padding: 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.5) 100%);
        }
        
        .hero-content {
            position: relative;
            z-index: 1;
        }
        
        .hero h2 {
            font-size: 48px;
            margin-bottom: 20px;
            text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
        }
        
        .hero h2 span {
            color: #ff6b35;
        }
        
        .hero p {
            font-size: 20px;
            color: #aaa;
            margin-bottom: 40px;
        }
        
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .btn-primary {
            background: linear-gradient(45deg, #ff6b35, #f7931e);
            color: #fff;
            padding: 18px 50px;
            border: none;
            border-radius: 50px;
            font-size: 18px;
            font-weight: bold;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.3s;
            box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(255, 107, 53, 0.6);
        }
        
        .btn-secondary {
            background: transparent;
            color: #00d4ff;
            padding: 18px 50px;
            border: 2px solid #00d4ff;
            border-radius: 50px;
            font-size: 18px;
            font-weight: bold;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.3s;
        }
        
        .btn-secondary:hover {
            background: #00d4ff;
            color: #000;
        }
        
        /* 功能特点 */
        .features {
            padding: 80px 0;
            background: #0f0f23;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 36px;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(90deg, #00d4ff, #ff6b35);
        }
        
        .section-title p {
            color: #888;
            font-size: 16px;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background: linear-gradient(145deg, #1a1a2e, #16213e);
            padding: 40px 30px;
            border-radius: 15px;
            text-align: center;
            transition: all 0.3s;
            border: 1px solid rgba(0, 212, 255, 0.1);
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            border-color: #00d4ff;
            box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 25px;
            background: linear-gradient(45deg, #00d4ff, #0099cc);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 36px;
        }
        
        .feature-card:nth-child(2) .feature-icon {
            background: linear-gradient(45deg, #ff6b35, #f7931e);
        }
        
        .feature-card:nth-child(3) .feature-icon {
            background: linear-gradient(45deg, #00ff88, #00cc6a);
        }
        
        .feature-card:nth-child(4) .feature-icon {
            background: linear-gradient(45deg, #ff3366, #ff0044);
        }
        
        .feature-card h3 {
            font-size: 22px;
            margin-bottom: 15px;
            color: #fff;
        }
        
        .feature-card p {
            color: #888;
            font-size: 14px;
        }
        
        /* 产品展示 */
        .products {
            padding: 80px 0;
            background: #0a0a0a;
        }
        
        .product-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .product-card {
            background: linear-gradient(145deg, #1a1a2e, #16213e);
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid rgba(0, 212, 255, 0.1);
            transition: all 0.3s;
        }
        
        .product-card:hover {
            transform: scale(1.02);
            box-shadow: 0 20px 50px rgba(0, 212, 255, 0.3);
        }
        
        .product-image {
            height: 200px;
            background: linear-gradient(135deg, #0f0f23, #1a1a3e);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        
        .product-image::before {
            content: 'CF';
            font-size: 80px;
            font-weight: bold;
            background: linear-gradient(45deg, #00d4ff, #ff6b35);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .product-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: linear-gradient(45deg, #ff6b35, #f7931e);
            color: #fff;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: bold;
        }
        
        .product-info {
            padding: 30px;
        }
        
        .product-info h3 {
            font-size: 24px;
            margin-bottom: 10px;
            color: #00d4ff;
        }
        
        .product-info .version {
            color: #888;
            font-size: 14px;
            margin-bottom: 15px;
        }
        
        .product-features {
            list-style: none;
            margin-bottom: 25px;
        }
        
        .product-features li {
            padding: 8px 0;
            color: #ccc;
            font-size: 14px;
            display: flex;
            align-items: center;
        }
        
        .product-features li::before {
            content: '✓';
            color: #00ff88;
            margin-right: 10px;
            font-weight: bold;
        }
        
        .product-price {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        
        .price-tag {
            font-size: 28px;
            font-weight: bold;
            color: #ff6b35;
        }
        
        .price-tag span {
            font-size: 14px;
            color: #888;
        }
        
        /* 下载区域 */
        .download-section {
            padding: 80px 0;
            background: linear-gradient(135deg, #1a1a3e 0%, #0f0f23 100%);
            text-align: center;
        }
        
        .download-box {
            background: linear-gradient(145deg, #16213e, #1a1a2e);
            max-width: 700px;
            margin: 0 auto;
            padding: 50px;
            border-radius: 20px;
            border: 2px solid #00d4ff;
            box-shadow: 0 0 50px rgba(0, 212, 255, 0.3);
        }
        
        .download-box h3 {
            font-size: 32px;
            margin-bottom: 20px;
            color: #00d4ff;
        }
        
        .download-box p {
            color: #888;
            margin-bottom: 30px;
        }
        
        .download-steps {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        
        .step {
            text-align: center;
        }
        
        .step-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(45deg, #00d4ff, #0099cc);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: bold;
            margin: 0 auto 10px;
        }
        
        .step p {
            font-size: 14px;
            color: #ccc;
            margin: 0;
        }
        
        /* 常见问题 */
        .faq {
            padding: 80px 0;
            background: #0f0f23;
        }
        
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: linear-gradient(145deg, #1a1a2e, #16213e);
            margin-bottom: 15px;
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid rgba(0, 212, 255, 0.1);
        }
        
        .faq-question {
            padding: 20px 30px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: bold;
            transition: all 0.3s;
        }
        
        .faq-question:hover {
            background: rgba(0, 212, 255, 0.1);
        }
        
        .faq-question::after {
            content: '+';
            font-size: 24px;
            color: #00d4ff;
            transition: transform 0.3s;
        }
        
        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }
        
        .faq-answer {
            padding: 0 30px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s;
            color: #888;
        }
        
        .faq-item.active .faq-answer {
            padding: 0 30px 20px;
            max-height: 200px;
        }
        
        /* 底部 */
        footer {
            background: #050508;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-section h4 {
            font-size: 18px;
            margin-bottom: 20px;
            color: #00d4ff;
        }
        
        .footer-section ul {
            list-style: none;
        }
        
        .footer-section ul li {
            margin-bottom: 10px;
        }
        
        .footer-section ul li a {
            color: #888;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-section ul li a:hover {
            color: #ff6b35;
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            text-align: center;
            color: #666;
            font-size: 14px;
        }
        
        /* 浮动客服 */
        .float-contact {
            position: fixed;
            right: 30px;
            bottom: 30px;
            z-index: 999;
        }
        
        .float-btn {
            width: 60px;
            height: 60px;
            background: linear-gradient(45deg, #ff6b35, #f7931e);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #fff;
            cursor: pointer;
            box-shadow: 0 5px 20px rgba(255, 107, 53, 0.5);
            transition: all 0.3s;
            animation: bounce 2s infinite;
        }
        
        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }
        
        .float-btn:hover {
            transform: scale(1.1);
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
            }
            
            nav ul {
                margin-top: 20px;
            }
            
            nav ul li {
                margin: 0 15px;
            }
            
            .hero h2 {
                font-size: 32px;
            }
            
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .section-title h2 {
                font-size: 28px;
            }
        }
        
        /* 加载动画 */
        .loading {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: #0a0a0a;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            transition: opacity 0.5s;
        }
        
        .loading.hidden {
            opacity: 0;
            pointer-events: none;
        }
        
        .loader {
            width: 50px;
            height: 50px;
            border: 3px solid rgba(0, 212, 255, 0.3);
            border-top-color: #00d4ff;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }