.qa-container {
    margin: 0 auto;
    padding: 20px;
    border-radius: 8px;
}
 
.qa-categories {
    margin-bottom: 20px;
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
}
.qa-categories-container {
    overflow-x: auto; /* 允许横向滚动 */
    -webkit-overflow-scrolling: touch; /* 添加平滑滚动效果 */
    max-width: 770px;
    scrollbar-width: none; /* Firefox: 隐藏滚动条 */
}
.qa-categories-container::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera: 隐藏滚动条 */
}
 .qa-categories {
    display: flex;
    flex-wrap: nowrap; /* 不换行 */
    gap: 10px; /* 分类项之间的间距 */
}
.qa-categories .category {
    text-decoration: none;
    color: #333;
    padding: 8px 15px;
    border-radius: 20px;
    background-color: #f0f0f0;
    transition: background-color 0.3s;
    white-space: nowrap; /* 防止文字换行 */
}
 
.qa-categories .category.active {
    background-color: #2196f3;
    color: #fff;
    font-weight: bold;
} 


 
.qa-list {
    margin-bottom: 20px;
}
 
.qa-item {
    padding: 30px 0;
    border-bottom: 1px solid #eee;
}
 
.qa-title {
    font-size: 18px;
    font-weight: bold;
    color: #000;
}
.qa-meta {
    color: #666;
    font-size: 14px;
    margin-top: 15px;
}
 
.qa-meta span {
    margin-right: 15px;
}
 
.pagination {
    display: flex;
    justify-content: center;
    padding: 20px 0;
}