/**
 * 首页样式
 */
.use span {
    cursor: pointer;
    padding: 5px 10px;
    border: 1px solid #ccc;
    margin-right: 5px;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.use span:hover {
    background-color: #0056b3;
    color: white;
    border-color: #0056b3;
}

.use span.selected {
    background-color: #007BFF;
    color: white;
    border-color: #007BFF;
}