/* 基础样式修复 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

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

/* 导航样式 */
nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

nav li {
    display: inline-block;
    margin-right: 20px;
}

nav a {
    text-decoration: none;
    color: #333;
    padding: 10px;
    display: block;
}

nav a:hover {
    background-color: #f0f0f0;
}

/* 产品展示样式 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.product-item {
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 5px;
    text-align: center;
}

.product-item img {
    max-width: 100%;
    height: auto;
    margin-bottom: 10px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin: 5px;
}

.btn:hover {
    background-color: #0056b3;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }
    
    nav li {
        display: block;
        margin: 0;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
}

/* 修复常见问题 */
img {
    max-width: 100%;
    height: auto;
}

.red {
    color: #dc3545;
}

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

.mb-3 {
    margin-bottom: 1rem;
}

.mt-3 {
    margin-top: 1rem;
}