.ac-topic-hub{padding-block:2rem 4rem}.ac-topic-hub section{margin-block:2.5rem}.ac-topic-hero{padding:clamp(1.2rem,3vw,2.5rem);background:#f1f5f9;border-radius:18px}.ac-topic-hero h1{font-size:clamp(1.7rem,4vw,3rem);line-height:1.18;overflow-wrap:anywhere}.ac-topic-hero p{max-width:68ch}.ac-topic-link-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr));gap:.8rem}.ac-topic-link-grid a{padding:.9rem;border:1px solid #dbe2ea;border-radius:10px;overflow-wrap:anywhere}.ac-topic-native-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.2rem}.ac-topic-hub details{padding:1rem;border:1px solid #dbe2ea;border-radius:8px;margin:.6rem 0}.ac-topic-hub summary{cursor:pointer;font-weight:600}@media(max-width:850px){.ac-topic-native-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:580px){.ac-topic-native-grid{grid-template-columns:minmax(0,1fr)}}