* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Arial, sans-serif;
        }

        body {
            background: #0a192f;
            color: #8892b0;
            line-height: 1.6;
        }

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

        /* 导航栏 */
        nav {
            background: rgba(10, 25, 47, 0.85);
            padding: 20px 0;
            backdrop-filter: blur(10px);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }

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

        .logo {
            color: #64ffda;
            font-size: 24px;
            font-weight: bold;
        }

        .nav-links {
            display: flex;
            gap: 30px;
        }

        .nav-links a {
            color: #ccd6f6;
            text-decoration: none;
            transition: color 0.3s;
        }

        .nav-links a:hover {
            color: #64ffda;
        }

        /* 产品详情页样式 */
        .product-detail {
            padding: 140px 0 60px;
        }

        .product-detail-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: start;
        }

        .product-image {
            width: 100%;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        .product-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        .product-info {
            padding: 20px;
        }

        .product-info h1 {
            color: #64ffda;
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .product-info .product-price {
            font-size: 1.8rem;
            color: #ccd6f6;
            margin-bottom: 20px;
        }

        .product-info .product-description {
            margin-bottom: 30px;
            line-height: 1.8;
        }

        .specifications {
            margin-bottom: 30px;
        }

        .specifications h3 {
            color: #64ffda;
            margin-bottom: 15px;
        }

        .specifications ul {
            list-style-type: none;
        }

        .specifications li {
            margin-bottom: 10px;
            padding-left: 20px;
            position: relative;
        }

        .specifications li:before {
            content: "•";
            color: #64ffda;
            position: absolute;
            left: 0;
        }

        .action-buttons {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }

        .btn {
            padding: 12px 25px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
            transition: all 0.3s;
            display: inline-block;
            text-align: center;
        }

        .btn-primary {
            background: linear-gradient(45deg, #64ffda, #00b4d8);
            color: #0a192f;
            flex: 2;
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid #64ffda;
            color: #64ffda;
            flex: 1;
        }

        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(100, 255, 218, 0.2);
        }

        .related-products {
            margin-top: 80px;
        }

        .related-products h2 {
            color: #ccd6f6;
            margin-bottom: 40px;
            text-align: center;
        }

        .product-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }

        .product-item {
            position: relative;
            overflow: hidden;
            border-radius: 8px;
            transition: transform 0.3s;
            cursor: pointer;
        }

        .product-item:hover {
            transform: translateY(-10px);
        }

        .product-item img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.3s;
        }

        .product-item:hover img {
            transform: scale(1.05);
        }

        .product-info-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(10, 25, 47, 0.9);
            padding: 15px;
            transform: translateY(100%);
            transition: transform 0.3s;
        }

        .product-item:hover .product-info-overlay {
            transform: translateY(0);
        }

        .product-info-overlay h3 {
            color: #64ffda;
            margin-bottom: 5px;
        }

        /* 页脚 */
        footer {
            background: #020c1b;
            padding: 60px 0 20px;
            border-top: 1px solid #233554;
            margin-top: 80px;
        }

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

        .footer-section h4 {
            color: #64ffda;
            margin-bottom: 20px;
        }

        .social-links a {
            color: #8892b0;
            font-size: 24px;
            margin-right: 15px;
            transition: color 0.3s;
        }

        .social-links a:hover {
            color: #64ffda;
        }

        .copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid #233554;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .product-detail-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .product-info h1 {
                font-size: 2rem;
            }
            
            .action-buttons {
                flex-direction: column;
            }
            
            .product-gallery {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            }
        }

        @media (max-width: 480px) {
            .product-detail {
                padding: 120px 0 40px;
            }
            
            .product-info h1 {
                font-size: 1.8rem;
            }
            
            .product-gallery {
                grid-template-columns: 1fr;
            }
        }