.knowledge-copy{max-width:780px}
.knowledge-copy h1{font-size:clamp(2.2rem,5vw,3.6rem);margin-bottom:1.3rem}
.knowledge-copy h2{font-size:clamp(1.65rem,3.5vw,2.3rem);margin-bottom:1rem}
.knowledge-copy h3{font-size:1.5rem;margin:1.5rem 0 .8rem}
.knowledge-copy p,.knowledge-copy li{line-height:1.8}
.knowledge-copy li{margin-bottom:.65rem}
.knowledge-copy a:not(.btn){text-decoration:underline;text-underline-offset:3px}
.knowledge-copy .cta a.btn{color:var(--accent)}
.knowledge-copy .cta a.btn:hover{color:#fff}
.knowledge-breadcrumbs{display:flex;gap:.65rem;flex-wrap:wrap;font-size:.88rem;margin-bottom:1.6rem}
.knowledge-meta{font-size:.9rem;color:#c4ccd8;margin:1.5rem 0 0}
.knowledge-toc{padding:1.5rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-2);margin-bottom:2.5rem}
.knowledge-toc h2{font-size:1.4rem}
.knowledge-toc ol{padding-left:1.3rem;margin-bottom:0}
.knowledge-section{margin-bottom:2.5rem;scroll-margin-top:100px}
.knowledge-note{padding:1.4rem;border-left:3px solid var(--accent);background:var(--paper-2);margin-bottom:2.5rem}
.knowledge-note p:last-child{margin-bottom:0}
.knowledge-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}
.knowledge-cards .card h3{margin-bottom:.8rem}
@media(max-width:680px){.knowledge-cards{grid-template-columns:1fr}}