.at-toc{display:block;margin:0 0 1.5em;padding:.85em 1.1em 1em;border:1px solid #e5e7eb;border-radius:10px;background:#f3f4f6;color:#1f2937}.at-toc__summary{cursor:pointer;list-style:none;user-select:none;font-size:1rem;line-height:1.4}.at-toc__summary::-webkit-details-marker{display:none}.at-toc__summary::before{content:"▸";display:inline-block;margin-right:.45em;transition:transform 0.15s ease;color:#6b7280}.at-toc[open]>.at-toc__summary::before{transform:rotate(90deg)}.at-toc__list{margin:.75em 0 0;padding:0 0 0 .15em;list-style:none}.at-toc__item{margin:.35em 0;line-height:1.45}.at-toc__item--h3{margin-left:1.15em;font-size:.95em}.at-toc__link{color:#0f766e;text-decoration:none}.at-toc__link:hover,.at-toc__link:focus{text-decoration:underline;outline:none}