.article-toc {
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1rem 1.15rem;
    background: #fafafa;
}
.article-toc-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #374151;
    margin-bottom: 0.65rem;
}
.article-toc-list {
    list-style: none;
    padding-left: 0;
}
.article-toc-item {
    margin-bottom: 0.35rem;
}
.article-toc-item:last-child {
    margin-bottom: 0;
}
.article-toc-level-3 {
    padding-left: 1.1rem;
}
.article-toc-link {
    color: #2563eb;
    text-decoration: none;
    font-size: 0.95rem;
    line-height: 1.45;
}
.article-toc-link:hover {
    color: #1d4ed8;
    text-decoration: underline;
}