/* 基础样式 */
body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
header {
    background-color: #0066cc;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
}

/* 导航样式 */
nav {
    background-color: #333;
    padding: 0;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    color: white;
    text-decoration: none;
    padding: 1rem 1.5rem;
    display: block;
    transition: background-color 0.3s;
}

nav ul li a:hover,
nav ul li a.active {
    background-color: #0066cc;
}

/* 主要内容区域 */
main {
    margin: 2rem 0;
    background-color: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    min-height: 60vh;
}

.content {
    padding: 2rem;
}

/* 页脚样式 */
footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
}

/* 新闻列表样式 */
.news-list .news-item {
    border-bottom: 1px solid #eee;
    padding: 1rem 0;
}

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

.news-list .meta {
    color: #666;
    font-size: 0.9rem;
}

/* 产品列表样式 */
.product-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.product-item {
    border: 1px solid #ddd;
    padding: 1rem;
    border-radius: 5px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.product-item .price {
    font-weight: bold;
    color: #d32f2f;
    font-size: 1.2rem;
    text-align: right;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
    }
    
    nav ul li a {
        padding: 0.8rem 1rem;
    }
    
    .product-list {
        grid-template-columns: 1fr;
    }
    
    main {
        margin: 1rem 0;
    }
    
    .content {
        padding: 1rem;
    }
}