/* 标题栏样式 */
#custom-title-bar {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 200px;
    max-height: 80vh;
    overflow-y: auto;
    background-color: #f9f9f9;
    border: 1px solid #ccc;
    padding: 10px;
    z-index: 999;
}

/* 二级标题样式 */
#custom-title-bar div[data-level="2"] {
    cursor: pointer;
    padding-left: 0px;
}

/* 三级标题样式 */
#custom-title-bar div[data-level="3"] {
    cursor: pointer;
    padding-left: 20px;
}

/* 隐藏三级标题的初始样式 */
.collapsed {
    display: none;
}