wsx-doc-toc {
    display: flex;
    flex-direction: column;
    width: 240px;
    min-width: 240px;
    /* TOC scrolls with content instead of staying fixed at top */
}

.doc-toc {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding: 1.5rem 1rem;
}

.doc-toc-empty {
    padding: 1rem;
    text-align: center;
    color: var(--wsx-press-text-secondary, #6b7280);
    font-size: 0.875rem;
}

.doc-toc-title {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--wsx-press-text-secondary, #6b7280);
    margin: 0 0 1rem 0;
    padding: 0;
}

.doc-toc-nav {
    width: 100%;
}

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

.doc-toc-sublist {
    margin-top: 0.25rem;
    padding-left: 1rem;
}

.doc-toc-item {
    margin: 0;
    line-height: 1.6;
}

.doc-toc-item-level-1 {
    margin-bottom: 0.5rem;
}

.doc-toc-item-level-2 {
    margin-bottom: 0.375rem;
    font-size: 0.875rem;
}

.doc-toc-item-level-3 {
    margin-bottom: 0.25rem;
    font-size: 0.8125rem;
}

.doc-toc-item-level-4,
.doc-toc-item-level-5,
.doc-toc-item-level-6 {
    margin-bottom: 0.25rem;
    font-size: 0.75rem;
}

.doc-toc-link {
    display: block;
    color: var(--wsx-press-text-secondary, #6b7280);
    text-decoration: none;
    transition: color 0.2s ease;
    padding: 0.25rem 0;
    border-left: 2px solid transparent;
    padding-left: 0.5rem;
    margin-left: -0.5rem;
}

.doc-toc-link:hover {
    color: var(--wsx-press-text-primary, #111827);
}

.doc-toc-link.active {
    color: var(--wsx-press-toc-active-color, #2563eb);
    border-left-color: var(--wsx-press-toc-active-color, #2563eb);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 1280px) {
    wsx-doc-toc {
        display: none; /* 在较小屏幕上隐藏 TOC */
    }
}