body[data-lesson="03-interrupt"] .toc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 16px}body[data-lesson="03-interrupt"] .toc a{margin:0;font-size:14px}body[data-lesson="03-interrupt"] h3{margin-top:34px}body[data-lesson="03-interrupt"] h4{font-size:17px;margin-top:28px}body[data-lesson="03-interrupt"] section{margin-top:50px}body[data-lesson="03-interrupt"] .callout strong{display:inline}body[data-lesson="03-interrupt"] .callout>strong:first-child{display:block}.irq-controls{display:flex;flex-wrap:wrap;gap:12px 20px;margin:15px 0}.irq-controls label{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.irq-controls input[type=number]{width:75px}.irq-controls input,.irq-controls select{padding:5px;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:5px}.irq-result{display:block;font-size:17px;color:var(--accent);margin:18px 0;min-height:3em}.irq-trace{max-height:250px;overflow:auto;border:1px solid var(--line);border-radius:8px;padding:14px 18px;background:var(--bg);font-size:14px}.irq-trace li{margin:8px 0}.irq-flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:20px 0}.irq-node{border:1px solid var(--line);background:var(--bg);border-radius:9px;padding:12px;font-size:14px}.irq-node.active{border-color:var(--accent);background:var(--soft)}.irq-node strong{display:block}.irq-node small{display:block;color:var(--muted)}.irq-shot img{display:block;width:100%;height:auto}.irq-shot a{display:block}.irq-vector-result{display:block;margin:18px 0;font-size:16px;line-height:1.9;color:var(--accent)}.irq-timing{overflow-x:auto;background:#fffefb;border-radius:8px;margin:20px 0}.irq-timing svg{display:block;min-width:700px;width:100%;height:auto}@media(max-width:650px){body[data-lesson="03-interrupt"] .toc{grid-template-columns:1fr}.irq-flow{grid-template-columns:1fr}.irq-result{font-size:15px}}