:root{color-scheme:light dark;--navy:#153790;--yellow:#edb100;--logo-yellow:#f8b62c;--fg:#333;--bg:#f2f2f2;--surface:#fff;--control:#fafafa;--mount:#fff;--muted:#666;--faint:#9a9a9a;--line:#d9d9d9;--accent:#153790;--heading:#153790;--warn:#9a4a00;--pattern:url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='260' height='260'><g fill='%23fff' fill-opacity='0.18' stroke='%23fff' stroke-opacity='0.75' stroke-width='1.4'><rect x='28' y='26' width='42' height='58.7' rx='3.5' transform='rotate(-8 49 55)'/><rect x='146' y='14' width='42' height='58.7' rx='3.5' transform='rotate(6 167 43)'/><rect x='86' y='136' width='42' height='58.7' rx='3.5' transform='rotate(3 107 165)'/><rect x='206' y='150' width='42' height='58.7' rx='3.5' transform='rotate(-5 227 179)'/></g></svg>")}@media (prefers-color-scheme:dark){:root{--fg:#e6e6e6;--bg:#15171e;--surface:#1f222b;--control:#1b1e26;--mount:#232631;--muted:#a3a7b0;--faint:#6b7080;--line:#353946;--accent:#9fb5f2;--heading:#c3d0f7;--warn:#f0a85a;--pattern:url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='260' height='260'><g fill='%23fff' fill-opacity='0.01' stroke='%23fff' stroke-opacity='0.04' stroke-width='1.4'><rect x='28' y='26' width='42' height='58.7' rx='3.5' transform='rotate(-8 49 55)'/><rect x='146' y='14' width='42' height='58.7' rx='3.5' transform='rotate(6 167 43)'/><rect x='86' y='136' width='42' height='58.7' rx='3.5' transform='rotate(3 107 165)'/><rect x='206' y='150' width='42' height='58.7' rx='3.5' transform='rotate(-5 227 179)'/></g></svg>")}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--header-h,0px) + .8rem)}body{background:var(--bg) var(--pattern) repeat;color:var(--fg);letter-spacing:.02em;font-feature-settings:"palt" 0;flex-direction:column;min-height:100dvh;margin:0;font-family:Noto Sans JP,Hiragino Kaku Gothic ProN,Hiragino Sans,Yu Gothic,system-ui,sans-serif;font-size:1rem;line-height:1.85;display:flex}body>main{flex:1 0 auto;width:100%}a{color:var(--accent);text-underline-offset:.2em}.wrap{max-width:52rem;margin:0 auto;padding:0 1.1rem}h1,h2,h3{color:var(--heading);font-weight:700;line-height:1.5}h1{margin:1.5rem 0 .75rem;font-size:1.6rem}h2{border-bottom:1px solid var(--line);background:linear-gradient(var(--yellow), var(--yellow)) left bottom / 2.5em 2px no-repeat;margin:2.2rem 0 .75rem;padding-bottom:.3rem;font-size:1.2rem}.muted{color:var(--muted)}[hidden]{display:none!important}.visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.small{font-size:.88rem}.badge{white-space:nowrap;vertical-align:.1em;border:1px solid;border-radius:.3em;padding:0 .5em;font-size:.75rem;line-height:1.6;display:inline-block}.badge.warn{color:var(--warn)}.brand-bar{z-index:21;color:#333;border-top:4px solid var(--yellow);letter-spacing:normal;background:#f2f2f2;line-height:1;position:relative;box-shadow:0 1px 4px #0000001f}.brand-inner{justify-content:space-between;align-items:stretch;gap:1rem;display:flex}.brand-logo{flex-shrink:0;align-items:center;padding:26px 0;line-height:0;display:flex}.brand-logo img{width:auto;height:50px}.brand-nav{margin-right:-12px;display:flex}.brand-nav a{color:inherit;white-space:nowrap;flex-direction:column;justify-content:center;align-items:center;padding:0 12px;text-decoration:none;display:flex;position:relative}.brand-nav .ttl{font-size:14px}.brand-nav .desc{opacity:.6;font-size:10px;position:relative;top:4px}.brand-nav a:after{content:"";background:var(--yellow);width:100%;height:2px;transition:transform .25s;position:absolute;bottom:0;left:0;transform:scaleX(0)}.brand-nav a:hover:after,.brand-nav a[aria-current]:after{transform:scaleX(1)}.brand-nav a:focus-visible{outline:2px solid var(--navy);outline-offset:-2px}@media (width<=48rem){.brand-logo{padding:10px 0}.brand-logo img{height:28px}.brand-nav{margin-right:-8px}.brand-nav a{padding:0 8px}.brand-nav .ttl{font-size:13px}.brand-nav .desc{display:none}}@media (width<=22.5rem){.brand-inner{gap:.5rem}.brand-logo img{height:24px}.brand-nav{margin-right:-5px}.brand-nav a{padding:0 5px}.brand-nav .ttl{font-size:12px}}@media (prefers-color-scheme:dark){.brand-bar{background:var(--surface);color:var(--fg);box-shadow:0 1px 0 var(--line)}.brand-logo img{box-sizing:content-box;background:#fff;border-radius:.3rem;height:42px;padding:4px 8px}.brand-nav a:focus-visible{outline-color:var(--accent)}}@media (prefers-color-scheme:dark) and (width<=48rem){.brand-logo img{height:22px;padding:3px 6px}}@media (prefers-color-scheme:dark) and (width<=22.5rem){.brand-logo img{height:18px}}.nav-band{background:var(--navy);color:#fff;z-index:20;position:sticky;top:0}.site-nav{flex-wrap:wrap;align-items:center;gap:.2rem 1.6rem;padding-top:.9rem;display:flex}.site-title{color:var(--logo-yellow);padding-bottom:.7rem;font-size:1.25rem;font-weight:700;line-height:1.4;text-decoration:none}.site-nav nav{gap:.2rem 1.5rem;margin-left:auto;font-size:.95rem;font-weight:400;display:flex}.site-nav nav a{color:#ffffffd1;white-space:nowrap;border-bottom:3px solid #0000;padding:.2rem 0 .6rem;text-decoration:none}.site-nav nav a:hover{color:#fff;border-bottom-color:#fff6}.site-nav nav a[aria-current=page]{color:#fff;border-bottom-color:var(--yellow);font-weight:700}@media (width<=40rem){.site-nav{padding-top:.7rem}.site-title{padding-bottom:.2rem;font-size:1.12rem}.site-nav nav{gap:1.3rem;width:100%;margin-left:0;font-size:.92rem}}.site-footer{border-top:1px solid var(--line);background:var(--bg);color:var(--muted);margin-top:4.5rem;padding:1.4rem 0 2.2rem;font-size:.85rem}.footer-inner{flex-wrap:wrap;justify-content:space-between;gap:.4rem 1.5rem;display:flex}.footer-links{flex-wrap:wrap;gap:.2rem 1.2rem;display:flex}.footer-links a{color:var(--muted)}.footer-links a:hover{color:var(--accent)}.preview-note{background:var(--surface);color:var(--warn);text-align:center;padding:.3rem 1rem;font-size:.85rem}.prose h3{margin:1.6rem 0 .4rem;font-size:1.02rem}.prose ul{padding-left:1.3em}.prose li+li{margin-top:.3rem}.prose blockquote{background:var(--surface);word-break:break-all;border-radius:.4rem;margin:.6rem 0 1.2rem;padding:.7rem 1rem;font-size:.92rem}.prose blockquote p{margin:0}.card-grid{grid-template-columns:repeat(auto-fill,minmax(9.5rem,1fr));gap:1.4rem 1rem;margin:0;padding:0;list-style:none;display:grid}.card-grid li{flex-direction:column;align-items:center;gap:.3rem;display:flex}.card-grid a{border-radius:.6rem;width:100%;text-decoration:none;transition:transform .15s;display:block}.card-grid a:hover{transform:translateY(-2px)}.card-grid a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media (width<=30rem){.card-grid{grid-template-columns:repeat(2,1fr);gap:1rem .8rem}}@media (prefers-reduced-motion:reduce){.card-grid a{transition:none}}