.aikarai-usage{box-sizing:border-box;max-width:74rem;margin:2rem auto;padding:1.2rem 1.4rem;background:#f5f6f9;color:#17212b;border:1px solid #9da7b1;border-radius:12px;font:400 14px/1.55 system-ui,sans-serif;text-align:left}
.aikarai-usage *{box-sizing:border-box}.aikarai-usage h2{color:#17212b;font:700 18px/1.4 system-ui,sans-serif;margin:0 0 .7rem}.aikarai-usage label{display:flex;align-items:center;gap:.6rem;color:#17212b;font-weight:650;cursor:pointer}
.aikarai-usage input[type=checkbox]{flex:none;width:1.2rem;height:1.2rem;min-width:1.2rem;margin:0;accent-color:#174ea6}.aikarai-usage p{color:#334155;font-size:14px;line-height:1.55;margin:.7rem 0}.aikarai-usage nav{display:flex;gap:1rem;flex-wrap:wrap}.aikarai-usage a{color:#174ea6;text-decoration:underline;font-weight:600;min-height:32px;padding:4px 0}.aikarai-usage :focus-visible{outline:3px solid #174ea6;outline-offset:3px}
@media(max-width:600px){.aikarai-usage{margin:1.25rem .75rem;padding:1rem}.aikarai-usage label{align-items:flex-start}.aikarai-usage nav{gap:.5rem 1rem}}