a.menu-dropdown-button {
    display: block;
    width: 40px;
    text-align: center;
    padding: 5px;
    border: 1px solid var(--color-main);
    cursor: pointer;
}
a.menu-dropdown-button svg{
    fill: var(--color-main);
}
.meta-toc-fixed {
    display: none;
    position: fixed;
    left: 5px;
    top: 10%;
    z-index: 111;
}
.meta-toc-fixed.fixed {
    display: block;
}

.meta-toc-fixed .wrap-toc{
    display: none;
    max-height: 410px;
}
.meta-toc-fixed.fixed .toc-head .bi-caret-down-fill{
    display: none;
}
.meta-toc-fixed.fixed .toc-list {
    max-height: 350px;
    margin-top: 10px;
    padding-left: 15px;
}
.meta-toc-fixed.fixed .toc-list > li > a::before{
    left: -15px;
}

.wrap-toc {
    margin-bottom: 10px;

}
.toc-head, .toc-list{
    display: block;
    padding: 10px;
    background-color: rgba(213,229,245,0.95);
    width: 100%;
    font-size: 13px;
    border: 2px solid var(--color-main);
}

.wrap-toc .toc-head svg{
    fill: #fff;
    margin-right: 10px;
}
.wrap-toc .toc-head{
    position: relative;
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 600;
    color: #fff;
    line-height: 1;
    cursor: pointer;
    background-color: var(--color-main);
}

.meta-toc.fixed .wrap-toc{ width: 350px; display: none;}
.toc-list {
    padding-block: 10px;
    padding-left: 42px;
    max-height: 500px;
    overflow-y: auto;
    background-color: #FFFCE3;
}
.toc-list li {
    list-style: none;
}
.toc-list li a{
    display: block;
    padding: 4px 0px;
    cursor: pointer;
    color: var(--color-main) !important;
}
.toc-list li a:hover,
.toc-list li a.active{
    color: red !important;
}

.toc-list > li > a {
    position: relative;
    font-size: 16px;
    font-weight: 500;
}
.toc-list > li > a::before{
    content: '\25be';
    display: block;
    position: absolute;
    width: 20px;
    height: 20px;
    left: -20px;
    top: 3px;
}

.toc-list > li > a:only-child::before { content: ''; }   

.toc-list ul{
    padding-left: 20px;
}
.toc-list > li > ul li a {
    font-size: 15px;
}



/* DA SUA: Sidebar trang chi tiet news giu sticky tren desktop de muc luc/bai lien quan/banner di theo khi scroll. */
.news-detail-sidebar {
    position: sticky;
    top: 90px;
}

/* DA SUA: Muc luc trong sidebar mac dinh an, chi hien khi JS them class active sau khi scroll qua muc luc ban dau. */
.news-detail-sidebar-toc {
    display: none;
}

.news-detail-sidebar-toc.active {
    display: block;
}

.news-detail-sidebar-toc .wrap-toc {
    margin-top: 0;
}

/* DA SUA: Gioi han chieu cao muc luc sidebar va cho scroll rieng. */
.news-detail-sidebar-toc .toc-list {
    display: block;
    max-height: 320px;
    margin-top: 12px;
    padding-left: 15px;
    padding-right: 8px;
    scrollbar-color: var(--color-main) transparent;
    scrollbar-width: thin;
}

/* DA SUA: Lam dep thanh scroll muc luc sidebar news, scroll mong va bo tron giong style web mau. */
.news-detail-sidebar-toc .toc-list::-webkit-scrollbar {
    width: 3px;
}

.news-detail-sidebar-toc .toc-list::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 10px;
}

.news-detail-sidebar-toc .toc-list::-webkit-scrollbar-thumb {
    background: var(--color-main);
    border-radius: 10px;
}

.news-detail-sidebar-toc .toc-list::-webkit-scrollbar-thumb:hover {
    background: #d30000;
}

.news-detail-sidebar-toc .toc-list > li > a::before {
    left: -15px;
}

/* DA SUA: Khoang cach giua cac block trong sidebar: muc luc, bai lien quan, banner. */
.news-detail-sidebar-block {
    margin-bottom: 20px;
}

.news-detail-sidebar-row {
    --bs-gutter-x: 12px;
}

.news-detail-sidebar-related .title-main-detail {
    margin-bottom: 15px;
}

.news-detail-sidebar-related .title-main-detail h2 {
    font-size: 20px;
    line-height: 1.3;
    margin-bottom: 0;
}

/* DA SUA: Item bai viet lien quan rieng cho sidebar, khong su dung blocks/post.php. */
.news-detail-related-item {
    display: flex;
    gap: 10px;
    padding-bottom: 12px;
    margin-bottom: 12px;
    border-bottom: 1px solid #e9e9e9;
}

.news-detail-related-item:last-child {
    padding-bottom: 0;
    margin-bottom: 0;
    border-bottom: 0;
}

.news-detail-related-image {
    display: block;
    flex: 0 0 86px;
    border-radius: 6px;
    overflow: hidden;
}

.news-detail-related-image img {
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.news-detail-related-info {
    flex: 1;
    min-width: 0;
}

.news-detail-related-name {
    font-size: 14px;
    line-height: 1.4;
    margin-bottom: 4px;
}

.news-detail-related-name a {
    color: #222;
    text-decoration: none;
}

.news-detail-related-name:hover a{color: var(--color-main);}

.news-detail-related-date {
    color: #888;
    font-size: 12px;
    line-height: 1.4;
    margin-bottom: 4px;
}

.news-detail-related-desc {
    color: #555;
    font-size: 13px;
    line-height: 1.4;
}