.article-main {
    background: #fff;
    padding-bottom: 40px;
}

.breadcrumb-wrap {
    background: #f5f5f5;
    border-bottom: 1px solid #e8e8e8;
}

.breadcrumb-inner {
    padding-top: 10px;
    padding-bottom: 10px;
}

.breadcrumb-list {
    margin: 0;
    padding: 0;
    font-size: 13px;
    color: #666;
}

.breadcrumb-list li {
    float: left;
    line-height: 1.6;
}

.breadcrumb-list a {
    color: #555;
}

.breadcrumb-list a:hover {
    color: var(--brand-red);
    text-decoration: underline;
}

.breadcrumb-sep {
    margin: 0 8px;
    color: #aaa;
}

.breadcrumb-current {
    color: #333;
}

/* 与 basic/177 子页相同的左侧栏目导航 + 主内容两栏布局 */
.article-body-wrap {
    padding-top: 24px;
    padding-bottom: 28px;
}

.subpage-sidebar {
    float: left;
    width: 200px;
    margin-right: 28px;
    margin-bottom: 20px;
}

.sidebar-section-nav {
    border: 1px solid var(--list-border);
    background: #fafafa;
}

.sidebar-section-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-section-nav li {
    border-bottom: 1px solid var(--list-border);
}

.sidebar-section-nav li:last-child {
    border-bottom: 0;
}

.sidebar-section-nav a {
    display: block;
    padding: 12px 14px 12px 16px;
    font-size: 15px;
    color: #444;
    border-left: 3px solid transparent;
}

.sidebar-section-nav a:hover {
    background: #f0f0f0;
    color: var(--brand-red);
}

.sidebar-section-nav li.is-active a {
    background: #fff;
    color: var(--brand-red);
    font-weight: bold;
    border-left-color: var(--brand-red);
}

.article-content-wrap {
    overflow: hidden;
    min-height: 280px;
}

.article-card {
    max-width: none;
    margin: 0;
    border: 1px solid #eee;
    padding: 30px 34px;
    background: #fff;
}

.article-title {
    font-size: 32px;
    line-height: 1.3;
    font-weight: 700;
    color: #222;
    margin-bottom: 14px;
}

.article-meta {
    color: #777;
    font-size: 14px;
    margin-bottom: 26px;
    border-bottom: 1px solid #efefef;
    padding-bottom: 12px;
}

.article-content p {
    font-size: 18px;
    line-height: 1.95;
    color: #333;
    margin-bottom: 20px;
    text-align: justify;
}

@media (max-width: 991px) {
    .subpage-sidebar {
        float: none;
        width: 100%;
        margin-right: 0;
    }

    .article-content-wrap {
        overflow: visible;
    }

    .article-card {
        padding: 22px 18px;
    }

    .article-title {
        font-size: 26px;
    }

    .article-content p {
        font-size: 16px;
    }

    .breadcrumb-list li {
        float: none;
        display: inline;
    }
}