.article-shell .container{display:grid;grid-template-columns:minmax(0,1fr) 300px;grid-gap:48px;gap:48px}.article-content,.toc-side{border:1px solid var(--brand-border);border-radius:var(--brand-radius);padding:32px;background:#fff}.article-content h1{font-size:max(2rem, min(4vw, 3.3rem))}.article-content .lead{font-size:1.15rem;color:var(--brand-text)}.article-body{margin-top:32px}.article-nav{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--brand-border);padding-top:24px;margin-top:36px}@media (max-width:991px){.article-shell .container{grid-template-columns:1fr}.article-nav{flex-direction:column}}