.aoip-intro{border-bottom:1px solid var(--content-line);max-width:78ch;margin:0 0 1.5rem;padding-bottom:1.25rem}.aoip-intro-title{color:var(--content-text);font-family:var(--font-sans);letter-spacing:-.045em;margin:0 0 .55rem;font-size:clamp(1.8rem,3vw,2.65rem);font-weight:650;line-height:1.05}.aoip-intro-lead{max-width:74ch;color:var(--content-muted);font-family:var(--font-sans);margin:0;font-size:.98rem;line-height:1.65}.aoip-intro-glossary{color:var(--content-muted);font-family:var(--font-sans);margin-top:.9rem;font-size:.86rem}.aoip-intro-glossary>summary{cursor:pointer;color:var(--accent-ink);-webkit-user-select:none;user-select:none}.aoip-intro-glossary dl{border-left:2px solid var(--accent-ink);background:var(--content-tint);border-radius:0 10px 10px 0;margin:.5rem 0 0;padding:.65rem .85rem}.aoip-intro-term{grid-template-columns:minmax(9rem,max-content) 1fr;gap:.25rem .9rem;padding:.2rem 0;display:grid}.aoip-intro-term dt{font-weight:600}.aoip-intro-term dd{color:var(--aoip-muted,#6b7280);margin:0}@media (max-width:640px){.aoip-intro-term{grid-template-columns:1fr}}