:root{--ink:#17211f;--muted:#5d6865;--green:#153a35;--green-light:#e8f0ed;--cream:#f6f3ea;--gold:#a77f38;--line:#d9dfdc;--white:#fff;--max-width:1120px;color:var(--ink);background:var(--white);font-synthesis:none;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans JP,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--white);margin:0;font-size:16px;line-height:1.8}a{color:inherit;text-underline-offset:.18em}img{max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.025em;line-height:1.38}.container{width:min(calc(100% - 40px), var(--max-width));margin-inline:auto}.skip-link{z-index:100;color:#fff;background:var(--green);padding:10px 14px;position:fixed;top:-80px;left:12px}.skip-link:focus{top:12px}:focus-visible{outline-offset:3px;outline:3px solid #d09a30}.site-header{border-bottom:1px solid var(--line);background:#fffffff5}.header-inner{width:min(calc(100% - 40px), 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h1{margin-bottom:22px;font-size:clamp(2rem,5vw,3.35rem)}.article-description{color:var(--muted);font-size:1.08rem}.article-dates{color:var(--muted);flex-wrap:wrap;gap:18px;font-size:.78rem;display:flex}.draft-notice{border-left:4px solid var(--gold);background:#fff8e8;margin:36px 0;padding:24px 26px}.draft-notice p{color:#66583d;margin:5px 0 0}.prose{max-width:720px;font-size:1.06rem}.prose h2{border-bottom:2px solid var(--green);margin:2.5em 0 .8em;padding-bottom:.35em;font-size:1.65rem}.prose h3{margin:2em 0 .6em;font-size:1.3rem}.prose p{margin-bottom:1.45em}.prose blockquote{border-left:4px solid var(--green);background:var(--green-light);margin:1.8em 0;padding:18px 22px}.prose code{overflow-wrap:anywhere;background:var(--green-light);border-radius:4px;padding:.12em .35em}.static-prose{margin-bottom:50px}.related-section{border-top:1px solid var(--line);margin-top:82px;padding-top:52px}.related-section 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