/** 
    前端文章目录 - css
    author:     阿锋
    link:       https://feng.pub
    version:    0.0.3
*/
.content_toc {
    display: block;
    width: 200px;
    overflow: hidden;
    overflow-y: auto;
    position: fixed;
    bottom: 164px;
    right: 15px;
    padding: 0px;
    margin: 0px;
    background-color: var(--theme-palette-color-8);
    border-radius: 5px;
    box-shadow: 0 0 10px var(--theme-palette-color-1);
    scrollbar-width: none;
    -ms-overflow-style: none;
    z-index: 1;
    transition: all 0.5s;
}

.content_toc::-webkit-scrollbar {
    display: none;
}

.content_toc.less {
    width: 40px;
    height: 40px;
    color: var(--theme-palette-color-1);
    background-color: var(--theme-palette-color-1);
    border-radius: 20px;
    box-shadow: none;
    overflow: hidden;
}

.content_toc.less .content_toc_title h6,
.content_toc.less .content_toc_main {
    display: none;
}

.content_toc_title {
    position: relative;
    top: 0;
    left: 0;
    right: 0;
    height: 40px;
    padding: 0;
    margin: 0;
    transition: all 0.5s;
}

.content_toc_title h6 {
    padding-left: 10px;
    color: var(--theme-palette-color-1);
    font-size: 18px;
    font-weight: 700;
    line-height: 40px;
}

.content_toc_title h6::before {
    content: '|';
    margin-right: 10px;
    color: var(--theme-palette-color-1);
    background: var(--theme-palette-color-1);
    border-radius: 5px;
}

.content_toc_title .btn {
    position: absolute;
    width: 20px;
    height: 20px;
    top: 10px;
    right: 10px;
    line-height: 20px;
    font-weight: bold;
    color: var(--theme-palette-color-7);
    background-color: var(--theme-palette-color-1);
    text-align: center;
    font-size: 12px;
    border-radius: 50%;
    box-shadow: 0 0 10px var(--theme-palette-color-6);
    cursor: pointer;
    transition: all 0.5s;
}

.content_toc_title .btn:hover,
.content_toc_title .btn.close:hover {
    color: var(--theme-palette-color-8);
    background-color: var(--theme-palette-color-2);
    box-shadow: 0 0 10px var(--theme-palette-color-1);
}

.content_toc_title .btn.close {
    top: 0;
    right: 0;
    width: 40px;
    height: 40px;
    line-height: 40px;
    border-radius: 20px;
    color: var(--theme-palette-color-7);
    background-color: var(--theme-palette-color-1);
}

.content_toc_main {
    padding: 0;
    margin: 0;
    overflow-y: auto;
    transition: all 0.5s;
}

.content_toc_main::-webkit-scrollbar {
    display: none;
}

.content_toc_tree {
    padding: 0 10px 10px 10px;
    margin: 0;
    list-style: none;
}

.content_toc_tree li {
    position: relative;
    width: 170px;
    font-size: 14px;
    padding: 0px;
    margin-left: 10px;
    border-radius: 5px;
    color: var(--theme-palette-color-3);
    cursor: pointer;
}

.content_toc_tree li.active,
.content_toc_tree li:hover {
    color: var(--theme-palette-color-8);
    background-color: var(--theme-palette-color-1);
}

.content_toc_tree li::before {
    content: '';
    position: absolute;
    top: 12px;
    left: -10px;
    width: 5px;
    height: 5px;
    background-color: var(--theme-palette-color-6);
    border-radius: 50%;
}

.content_toc_tree li.active::before,
.content_toc_tree li:hover::before {
    border-width: 2px;
    background: var(--theme-palette-color-1);
}

.content_toc_tree li.level_H1 {
    padding-left: 5px;
}

.content_toc_tree li.level_H2 {
    padding-left: 5px;
}

.content_toc_tree li.level_H3 {
    padding-left: 1em;
}

.content_toc_tree li.level_H4 {
    padding-left: 2em;
}

.content_toc_tree li.level_H5 {
    padding-left: 3em;
}

.content_toc_tree li.level_H6 {
    padding-left: 4em;
}

@media screen and (max-width: 992px) {
    .content_toc {
        width: 170px;
    }

    .content_toc_tree {
        padding: 0 5px 10px 5px;
    }

    .content_toc_tree li {
        width: 150px;
    }
}