:root{--bg:#f2f4f7;--surface:#fff;--surface-2:#e8ecf2;--ink:#18202c;--muted:#5a6475;--line:#d3d9e2;--brass:#946409;--on-brass:#fff;--brass-soft:#f5e8c9;--note:#c68d1c;--note-sel:#18202c;--trace:#7d8aa0;--danger:#b93d0c;--danger-soft:#fbe6dc;--ok:#2c7a4b;--ok-soft:#dff0e5;--sheet:#fff;--row-dark:#edf0f5;--grid-1:#e6eaf0;--grid-2:#ccd3de;--grid-3:#9aa5b6;--f-display:"Dela Gothic One","Zen Kaku Gothic New","Hiragino Sans","Yu Gothic UI",sans-serif;--f-body:"Zen Kaku Gothic New","Hiragino Sans","Yu Gothic UI","Meiryo",sans-serif;--f-mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#10141b;--surface:#171d26;--surface-2:#202835;--ink:#e6e9ef;--muted:#9aa4b5;--line:#2b3342;--brass:#e1ae4c;--on-brass:#1b1404;--brass-soft:#3a2e15;--note:#d9a441;--note-sel:#fff;--trace:#6e7c95;--danger:#f2804f;--danger-soft:#3b2016;--ok:#62c48f;--ok-soft:#163222;--sheet:#fff;--row-dark:#141922;--grid-1:#1f2632;--grid-2:#2e3747;--grid-3:#4a566b;color-scheme:dark}}:root[data-theme=dark]{--bg:#10141b;--surface:#171d26;--surface-2:#202835;--ink:#e6e9ef;--muted:#9aa4b5;--line:#2b3342;--brass:#e1ae4c;--on-brass:#1b1404;--brass-soft:#3a2e15;--note:#d9a441;--note-sel:#fff;--trace:#6e7c95;--danger:#f2804f;--danger-soft:#3b2016;--ok:#62c48f;--ok-soft:#163222;--sheet:#fff;--row-dark:#141922;--grid-1:#1f2632;--grid-2:#2e3747;--grid-3:#4a566b;color-scheme:dark}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--ink);font-family:var(--f-body);margin:0;padding-block:0 48px;padding-inline:16px;font-size:15px;line-height:1.7}img{max-width:100%;height:auto}a{color:var(--brass)}h1,h2,h3{text-wrap:balance;margin:0}button,input,select{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--brass);outline-offset:2px}[hidden]{display:none!important}.wrap{max-width:1180px;margin:0 auto}.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}.site-head{border-bottom:2px solid var(--ink)}.site-head .wrap{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 24px;padding-block:14px;display:flex}.logo{font-family:var(--f-display);letter-spacing:.04em;color:var(--ink);font-size:24px;line-height:1;text-decoration:none}.site-nav{flex-wrap:wrap;gap:4px 18px;font-size:14px;display:flex}.site-nav a{color:var(--muted);border-bottom:2px solid #0000;padding-block:4px;text-decoration:none}.site-nav a:hover{color:var(--ink)}.site-nav a[aria-current=page]{color:var(--ink);border-bottom-color:var(--brass)}.site-foot{border-top:1px solid var(--line);color:var(--muted);margin-top:64px;padding-block:24px;font-size:13px}.site-foot .wrap{flex-wrap:wrap;justify-content:space-between;gap:8px 20px;display:flex}.site-foot nav{flex-wrap:wrap;gap:4px 18px;display:flex}.site-foot a{color:var(--muted)}.btn{border:1px solid var(--line);background:var(--surface);cursor:pointer;white-space:nowrap;height:38px;color:var(--ink);border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:0 14px;font-weight:500;text-decoration:none;display:inline-flex}.btn:hover:not(:disabled){border-color:var(--brass)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn.sm{height:32px;padding:0 10px;font-size:13px}.btn.primary{background:var(--brass);border-color:var(--brass);color:var(--on-brass)}.btn.primary:hover:not(:disabled){filter:brightness(1.06)}.btn.ghost{background:0 0}.chip{background:var(--surface-2);color:var(--ink);border-radius:999px;align-items:center;gap:6px;padding:3px 10px;font-size:13px;display:inline-flex}.chip.warn{background:var(--danger-soft);color:var(--danger)}.chip.ok{background:var(--ok-soft);color:var(--ok)}.chip.sample{background:var(--brass-soft);color:var(--brass);font-weight:700}.page{max-width:760px;margin:0 auto;padding-block:36px 0}.page-head{margin-bottom:28px}.eyebrow{letter-spacing:.08em;color:var(--brass);margin:0 0 8px;font-size:12px;font-weight:700}.page-head h1{font-size:clamp(24px,4vw,32px);line-height:1.35}.page-head .meta{color:var(--muted);margin-top:10px;font-size:13px}.prose{font-size:16px;line-height:1.9}.prose h2{border-top:1px solid var(--line);margin:2.2em 0 .7em;padding-top:.6em;font-size:21px}.prose h3{margin:1.8em 0 .5em;font-size:17px}.prose p,.prose ul,.prose ol{margin:0 0 1.1em}.prose li{margin-bottom:.35em}.prose code{font-family:var(--f-mono);background:var(--surface-2);border-radius:4px;padding:1px 5px;font-size:.9em}.prose blockquote{border-left:3px solid var(--brass);color:var(--muted);margin:1.4em 0;padding:4px 16px}.prose .table-wrap,.prose table{display:block;overflow-x:auto}.prose table{border-collapse:collapse;max-width:100%;margin:1.2em 0;font-size:14px}.prose th,.prose td{border:1px solid var(--line);text-align:left;white-space:nowrap;padding:6px 12px}.prose th{background:var(--surface-2)}.cta{background:var(--surface);border:1px solid var(--line);border-radius:12px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 20px;margin-top:40px;padding:20px;display:flex}.cta p{margin:0;font-weight:500}.ad{max-width:760px;min-height:100px;margin:48px auto 0}.ad-label{letter-spacing:.06em;color:var(--muted);margin-bottom:6px;font-size:11px;display:block}.ad-dev{border:1px dashed var(--grid-3);min-height:100px;color:var(--muted);border-radius:8px;place-items:center;font-size:13px;display:grid}