.toc{--toc-bg:var(--color-surface);--toc-border:var(--color-border);--toc-text:var(--color-text);--toc-muted:var(--color-muted);--toc-accent:var(--color-accent);--toc-shadow:var(--shadow-sm);background:var(--toc-bg);border:1px solid var(--toc-border);border-radius:var(--radius-md);box-shadow:var(--toc-shadow);padding:12px 14px}.toc.is-sticky{position:sticky;top:calc(var(--nav-height, 48px) + 8px);z-index:5}.toc-header{font-weight:600;font-size:14px;color:var(--toc-muted);letter-spacing:.2px;margin-bottom:6px}.toc-list{margin:0;padding:0;list-style:none;display:grid;gap:6px}.toc-item{margin:0}.toc-link{display:block;padding:8px 10px;border-radius:10px;color:var(--toc-text);text-decoration:none;font-size:14px;line-height:1.4;background:0 0;transition:background-color .18s ease,color .18s ease}.toc-link:hover{background:var(--surface-hover)}.toc-link.is-active,.toc-link[aria-current=true]{background:var(--accent-tint-10);color:var(--toc-accent)}@media (max-width:768px){.toc{padding:10px 12px}.toc-link{font-size:13px;padding:7px 9px}}