#articleContent h1::before,
#articleContent h2::before,
#articleContent h3::before,
#articleContent h4::before,
#articleContent h5::before,
#articleContent h6::before {
    display: block;
    content: " ";
    height: 100px;
    margin-top: -100px;
    visibility: hidden;
}

#articleContent :focus {
    outline: none;
}

/* 普通带 TOC 的文章页（非帮助教程三栏） */
.row .flei {
    float: right;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    padding: 0 0.75rem;
    min-height: 1px;
}

.toc-fixed {
    position: fixed;
    top: 64px;
}

.toc-widget {
    width: 300px;
    padding-left: 5px;
}

.toc-widget .toc-title {
    padding: 35px 0 15px 17px;
    font-size: 1.5rem;
    font-weight: bold;
    line-height: 1.5rem;
}

.toc-widget ol {
    padding: 0;
    list-style: none;
}

#toc-content {
    padding-bottom: 30px;
    padding-right: 30px;
    overflow: auto;
}

#toc-content ol {
    padding-left: 10px;
}

#toc-content ol li {
    padding-left: 10px;
}

#toc-content .toc-link:hover {
    color: #1d57d2;
    font-weight: 700;
    text-decoration: underline;
}

#toc-content .toc-link::before {
    background-color: transparent;
    max-height: 25px;
    position: absolute;
    right: 23.5vw;
    display: block;
}

#toc-content .is-active-link {
    color: #1d57d2;
}

#floating-toc-btn {
    position: fixed;
    right: 15px;
    bottom: 76px;
    padding-top: 15px;
    margin-bottom: 0;
    z-index: 998;
}

#floating-toc-btn .btn-floating {
    width: 48px;
    height: 48px;
}

#floating-toc-btn .btn-floating i {
    line-height: 48px;
    font-size: 1.4rem;
}

#toc-aside-2 {
    font-size: 12px;
    position: absolute;
    left: -210px;
}

#toc-aside-2::-webkit-scrollbar {
    width: 5px;
    background-color: #f5f5f5;
}

#toc-aside-2::-webkit-scrollbar-track {
    background-color: #f5f5f5;
}

#toc-aside-2::-webkit-scrollbar-thumb {
    border-radius: 5px;
    background-color: #dbd8d8;
}

.active-article {
    color: #1d57d2 !important;
}

#toc-aside-2 #toc-content {
    max-height: 75vh;
    overflow-y: auto;
}

.article-list a {
    color: black;
}

.article-list .card {
    color: black;
    padding-left: 20px;
}

.article-list .card li::before {
    content: "▶";
    margin-right: 5px;
}

.article-list .card li a:hover {
    color: rgb(220, 104, 104);
}

.article-list .card li {
    margin-top: 10px;
}