.hidden {
    display: none !important;
}

.banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 内容区基础样式 */

.category-content {
    width: 1500px;
    margin: 0 auto;
    padding: 0 1rem;
}

.category-desc {
    color: #666;
    margin-bottom: 2rem;
}

/* 小类卡片网格布局 */
.subcategory-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

/* 小类卡片样式 */
.subcategory-card {
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: box-shadow 0.3s ease;
}

    .subcategory-card:hover {
        box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    }

/* 卡片图片 */
.card-img {
    height: 180px;
    overflow: hidden;
}

.img-fluid {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 卡片内容 */
.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.card-desc {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-model-count {
    color: #999;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* 卡片按钮 */
.card-btn {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background-color: #0066cc;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

    .card-btn:hover {
        background-color: #0055bb;
        color: #fff;
    }

    .card-btn.disabled {
        background-color: #ccc;
        cursor: not-allowed;
    }