/**
 * 文章目录小工具样式
 * 桌面优先，目录层级支持 H1-H3
 */

.b2-widget-title .b2-article-toc-title-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    margin-right: 10px;
    vertical-align: sub;
    background-image: url('../../images/common/tree@2x.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.b2-widget-title .b2-article-toc-title-icon::before {
    content: none;
}

.b2-widget-title .b2-article-toc-title-icon::after {
    content: none;
}


.b2-article-toc-empty {
    color: #9aa0a6;
    font-size: 14px;
    line-height: 1.8;
    padding: 8px 15px;
}

.b2-article-toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.b2-article-toc-item {
    margin: 0;
    padding: 15px !important;
}

.b2-article-toc-line {
    position: relative;
    display: flex;
    align-items: center;
    border-radius: 4px;

    /*gap: 10px;*/
    padding: 4px 6px;
}

.b2-article-toc-toggle {
    width: 14px;
    height: 14px;
    flex: 0 0 14px;
    border: 0;
    padding: 0;
    background-color: transparent;
    background-image: url('../../images/common/arrow_right@2x.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: 12px 12px;
    cursor: pointer;
}

.b2-article-toc-item.has-children.is-open > .b2-article-toc-line .b2-article-toc-toggle {
    background-image: url('../../images/common/arrow_down@2x.png');
}

.b2-article-toc-toggle.is-empty {
    /*visibility: hidden;*/
    display: none;
    cursor: default;
}

.b2-article-toc-link {
    display: block;
    width: 100%;
    flex: 1 1 auto;
    /*padding: 4px 10px;*/
    text-decoration: none;
    line-height: 1.5;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.b2-article-toc-link:hover {
    color: #3385ff;
}

.b2-article-toc-item.is-active > .b2-article-toc-line{
    background: #3385FF1A;
    color: #3385ff;
}

.b2-article-toc-item.has-children > .b2-article-toc-list {
    display: none;
}

.b2-article-toc-item.has-children.is-open > .b2-article-toc-list {
    display: block;
}

.b2-article-toc-level-2,
.b2-article-toc-level-3 {
    margin-left: 20px;
    padding-left: 10px;
    margin-top: 3px;
    border-left: 1px solid #9999993c;

}
.b2-article-toc-item-level-2,
.b2-article-toc-item-level-3 {
    padding: 0 !important;
    margin: 0 !important;
}

.b2-article-toc-item-level-2 > .b2-article-toc-line,
.b2-article-toc-item-level-3 > .b2-article-toc-line {
    /*padding-top: 2px;*/
    /*padding-bottom: 2px;*/
}



.b2-article-toc-item-level-2 .b2-article-toc-link {
    font-size: 13px;
    font-weight: 400;
    color: #333;
    /*padding-top: 6px;*/
    /*padding-bottom: 6px;*/
}

.b2-article-toc-item-level-3 .b2-article-toc-link {
    font-size: 13px;
    font-weight:400;
    color: #666;
}



.single-article .entry-content h1[id],
.single-article .entry-content h2[id],
.single-article .entry-content h3[id] {
    scroll-margin-top: 120px;
}

@media (max-width: 1399px) {
    .b2-article-toc-link {
        font-size: 16px;
    }

    .b2-article-toc-item-level-2 .b2-article-toc-link {
        font-size: 14px;
    }

    .b2-article-toc-item-level-3 .b2-article-toc-link {
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .b2-article-toc-link {
        padding: 7px 8px;
    }

    .b2-article-toc-level-2,
    .b2-article-toc-level-3 {
        margin-left: 18px;
        padding-left: 6px;
    }
}

@media (max-width: 480px) {
    .b2-widget-title .b2-article-toc-title-icon {
        width: 18px;
        height: 18px;
    }

    .b2-article-toc-link {
        font-size: 15px;
    }

    .b2-article-toc-item-level-2 .b2-article-toc-link {
        font-size: 13px;
    }

    .b2-article-toc-item-level-3 .b2-article-toc-link {
        font-size: 12px;
    }
}