.article-toc{margin:1.25rem 0 1.75rem;padding:1rem 1.1rem;border:1px solid #c6d4e4;border-radius:16px;background:linear-gradient(180deg,#f8fbff 0%,#eef4fa 100%);box-shadow:0 10px 28px rgba(8,31,58,.06)}.article-toc__head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.7rem}.article-toc__head strong{font:800 1.05rem/1.2 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#133b67}.article-toc__list{columns:2;column-gap:1rem;margin:0;padding-left:1.2rem}.article-toc__list li{break-inside:avoid;margin:.18rem 0 .32rem}.article-toc__list a{display:inline-block;color:#173f6f;text-decoration:none;border-radius:8px;padding:.22rem .38rem;transition:background .16s ease,color .16s ease,transform .16s ease}.article-toc__list a:hover,.article-toc__list a:focus-visible{background:#133f70;color:#fff;outline:2px solid rgba(228,185,52,.72);outline-offset:2px;transform:translateX(2px)}@media(max-width:900px){.article-toc__list{columns:1}}