:root{--bg:#fdfcfa;--bg-subtle:#f5f2ec;--ink:#1c1b19;--ink-soft:#55524c;--ink-faint:#85817a;--rule:#e2ddd3;--accent:#1f3a5f;--accent-soft:#eaf0f6;--measure:40rem}:root:not([data-theme=light]){color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#16161a;--bg-subtle:#1e1e23;--ink:#eceae6;--ink-soft:#b3afa8;--ink-faint:#85817a;--rule:#33323a;--accent:#9dbbdd;--accent-soft:#22252d;color-scheme:dark}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--ink);letter-spacing:.02em;font-feature-settings:"palt" 1;text-rendering:optimizelegibility;margin:0;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic UI,Yu Gothic,Meiryo,sans-serif;font-size:17px;line-height:1.95}img{max-width:100%;height:auto}a{color:var(--accent);text-underline-offset:.2em;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}.wrap{width:100%;max-width:var(--measure);margin-inline:auto;padding-inline:1.25rem}.site-header{border-bottom:1px solid var(--rule)}.site-header .wrap{flex-wrap:wrap;align-items:baseline;gap:.5rem 1.5rem;padding-block:1.25rem;display:flex}.site-title{letter-spacing:.06em;margin:0;font-size:1rem;font-weight:700}.site-title a{color:var(--ink);text-decoration:none}.site-nav{gap:1.25rem;margin-left:auto;font-size:.875rem;display:flex}.site-nav a{color:var(--ink-soft);text-decoration:none}.site-nav a:hover{color:var(--accent);text-decoration:underline}main{padding-block:3rem 4rem}h1,h2,h3{letter-spacing:.01em;font-feature-settings:"palt" 1;line-height:1.6}h1{margin:0 0 1rem;font-size:1.6rem}h2{border-top:1px solid var(--rule);margin:3.5rem 0 1rem;padding-top:1.75rem;font-size:1.2rem}h3{color:var(--ink);margin:2.5rem 0 .75rem;font-size:1.05rem}p{margin:0 0 1.6em}.prose>:first-child{margin-top:0}.prose strong{background:linear-gradient(transparent 62%, var(--accent-soft) 62%);font-weight:700}.prose blockquote{border-left:3px solid var(--accent);color:var(--ink-soft);margin:2rem 0;padding:.25rem 0 .25rem 1.25rem}.prose blockquote p:last-child{margin-bottom:0}.prose ul,.prose ol{margin:0 0 1.6em;padding-left:1.4em}.prose li{margin-bottom:.6em}.prose hr{border:0;border-top:1px solid var(--rule);margin:3rem 0}.prose table{border-collapse:collapse;width:100%;margin:0 0 1.6em;font-size:.9rem}.prose th,.prose td{border:1px solid var(--rule);text-align:left;vertical-align:top;padding:.6em .8em}.prose th{background:var(--bg-subtle);font-weight:700}.table-scroll{overflow-x:auto}.prose .diagram{margin:2.75rem 0}.diagram-scroll{overflow-x:auto}.diagram-scroll img{width:100%;min-width:460px;max-width:680px;height:auto;margin-inline:auto;display:block}.diagram figcaption{color:var(--ink-soft);margin-top:1rem;font-size:.82rem;line-height:1.85}.article-meta{color:var(--ink-faint);flex-wrap:wrap;align-items:center;gap:.75rem;margin-bottom:1.5rem;font-size:.8rem;display:flex}.tag{border:1px solid var(--rule);color:var(--ink-soft);white-space:nowrap;border-radius:999px;padding:.15em .7em;font-size:.75rem;text-decoration:none;display:inline-block}.tag:hover{border-color:var(--accent);color:var(--accent)}.pr-notice{background:var(--bg-subtle);border:1px solid var(--rule);color:var(--ink-soft);margin:0 0 2rem;padding:.7rem 1rem;font-size:.8rem;line-height:1.7}.article-list{margin:0;padding:0;list-style:none}.article-list li{border-bottom:1px solid var(--rule);padding:1.75rem 0}.article-list li:first-child{padding-top:0}.article-list h2{border:0;margin:.4rem 0 .5rem;padding:0;font-size:1.1rem}.article-list h2 a{color:var(--ink);text-decoration:none}.article-list h2 a:hover{color:var(--accent);text-decoration:underline}.article-list p{color:var(--ink-soft);margin:0;font-size:.9rem;line-height:1.85}.cta{border:1px solid var(--rule);border-top:3px solid var(--accent);background:var(--bg-subtle);margin-top:3.5rem;padding:1.75rem;font-size:.92rem;line-height:1.9}.cta h2{border:0;margin:0 0 1rem;padding:0;font-size:1rem}.cta p{margin:0 0 1em}.cta-link{font-size:1.05rem;margin:1.5rem 0!important}.cta-link a{font-weight:700}.cta-note{border-top:1px solid var(--rule);color:var(--ink-soft);padding-top:1rem;font-size:.82rem;line-height:1.85;margin-bottom:0!important}.author-box{background:var(--bg-subtle);border:1px solid var(--rule);margin-top:4rem;padding:1.5rem;font-size:.9rem;line-height:1.85}.author-box h2{border:0;margin:0 0 .75rem;padding:0;font-size:.95rem}.author-head{align-items:center;gap:.9rem;margin-bottom:1rem;display:flex}.author-head img{object-fit:cover;object-position:top center;border:1px solid var(--rule);border-radius:50%;flex:none;width:72px;height:72px}.author-head p{margin:0;font-size:.85rem;line-height:1.6}.portrait{margin:0 0 1.75rem}.portrait img{border:1px solid var(--rule);width:220px;max-width:60%;height:auto;display:block}@media (width<=34rem){.portrait img{width:160px}}.author-box p:last-child{margin-bottom:0}.site-footer{border-top:1px solid var(--rule);color:var(--ink-faint);padding-block:2rem 3rem;font-size:.8rem}.footer-nav{flex-wrap:wrap;gap:.5rem 1.25rem;margin:0 0 1rem;padding:0;list-style:none;display:flex}.footer-nav a{color:var(--ink-soft);text-decoration:none}.footer-nav a:hover{text-decoration:underline}.lede{margin-bottom:2.5rem;font-size:1.05rem;line-height:2}.claim{border:1px solid var(--rule);border-left:3px solid var(--accent);background:var(--bg-subtle);margin:0 0 3rem;padding:1.5rem;font-size:1rem;line-height:1.9}.claim p:last-child{margin-bottom:0}.category-grid{grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem;margin:0 0 1rem;padding:0;list-style:none;display:grid}.category-grid a{border:1px solid var(--rule);height:100%;color:var(--ink);padding:1.1rem;text-decoration:none;display:block}.category-grid a:hover{border-color:var(--accent);background:var(--bg-subtle)}.category-grid strong{margin-bottom:.35rem;font-size:.95rem;display:block}.category-grid span{color:var(--ink-soft);font-size:.8rem;line-height:1.75}.empty{border:1px dashed var(--rule);color:var(--ink-faint);text-align:center;padding:2rem;font-size:.9rem}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.skip-link{position:absolute;left:-9999px}.skip-link:focus{z-index:10;background:var(--bg);border:1px solid var(--accent);padding:.5rem 1rem;top:1rem;left:1rem}@media (width<=34rem){body{font-size:16px}h1{font-size:1.4rem}}
