* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
}

header {
    background-color: #333;
    color: white;
    padding: 2rem 0;
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.8;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.category {
    margin-bottom: 3rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #444;
    border-bottom: 2px solid #ddd;
    padding-bottom: 0.5rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.product-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.product-image {
    height: 200px;
    background-color: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: pointer;
}

.product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.product-info {
    padding: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.product-description {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.product-price {
    font-size: 1.3rem;
    font-weight: bold;
    color: #e74c3c;
    margin-bottom: 1rem;
}

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

.view-details {
    text-decoration: none;
    color: #3498db;
    font-weight: bold;
    transition: color 0.3s ease;
}

.view-details:hover {
    color: #2980b9;
    text-decoration: underline;
}

.category-options {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.option-btn {
    padding: 0.5rem 1rem;
    background-color: #f1f1f1;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.option-btn:hover {
    background-color: #e1e1e1;
}

.option-btn.active {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
}

/* 产品详细信息样式 */
.product-full-details {
    padding: 0 1.5rem 1.5rem;
}

.detail-images {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
    padding: 0.5rem 0;
}

.detail-images img {
    height: 200px;
    border-radius: 4px;
    cursor: pointer;
}

.detail-specs h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #444;
}

.detail-specs ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.detail-specs li {
    margin-bottom: 0.5rem;
    color: #666;
}

.detail-note {
    color: #e74c3c;
    font-style: italic;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 8px;
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close-modal:hover,
.close-modal:focus {
    color: #333;
    text-decoration: none;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
        padding: 1.5rem;
    }
    
    .detail-images {
        flex-direction: column;
        align-items: center;
    }
    
    .detail-images img {
        width: 100%;
        height: auto;
        max-height: 250px;
    }
}