:root{font-family:system-ui,sans-serif;color:#162b3a;background:#f5f7f8;line-height:1.65}*{box-sizing:border-box}body{margin:0}header{display:flex;gap:2rem;align-items:center;padding:1.2rem max(1.5rem,calc((100vw - 960px)/2));background:#142d3b;color:white}header a{font-weight:750;color:white;text-decoration:none;font-size:1.25rem}header span{font-size:.9rem;color:#cee0e6}main{max-width:960px;padding:2rem 1.5rem 4rem;margin:auto}h1{font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.2;letter-spacing:-.03em}a{color:#096679;text-underline-offset:3px}a:focus-visible{outline:3px solid #d19423;outline-offset:4px}.notice{font-weight:600;color:#765109}article{padding:1rem 0;border-bottom:1px solid #cedae0}blockquote{margin:1rem 0;padding-left:1rem;border-left:3px solid #829ba5;color:#3b515b}ul{padding-left:1.5rem}li{margin:1rem 0}small{display:block;color:#4b6470}@media(max-width:600px){header{display:block}header span{display:block}}