:root{color-scheme:light;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#192a25;background:#f6f7f2;line-height:1.7}*{box-sizing:border-box}body{margin:0}main{max-width:820px;margin:auto;padding:40px 24px 72px}nav{display:flex;flex-wrap:wrap;gap:20px;margin-bottom:44px}a{color:#285749;text-underline-offset:4px}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.2;margin-bottom:12px}h2{font-size:1.25rem;margin-top:32px}p,li{max-width:75ch}.date{color:#5a6b63}.notice{padding:16px 20px;border-left:3px solid #47765b;background:#eaf0e7}footer{border-top:1px solid #ccd4ca;margin-top:40px;padding-top:20px;font-size:.9rem}