header[data-astro-cid-xbstl6g3]{position:fixed;top:0;left:0;right:0;z-index:99;background:var(--surface);border-bottom:1px solid var(--line)}.bar[data-astro-cid-xbstl6g3]{max-width:var(--wide);margin:0 auto;height:var(--header-h);display:flex;align-items:center;gap:1.5rem;padding:0 1.25rem}.brand[data-astro-cid-xbstl6g3]{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-weight:700;flex-shrink:0}.brand[data-astro-cid-xbstl6g3] img[data-astro-cid-xbstl6g3]{background:#6b6560;padding:4px 7px;border-radius:6px}.brand[data-astro-cid-xbstl6g3] span[data-astro-cid-xbstl6g3]{font-family:Alegreya Sans SC,system-ui,sans-serif;font-size:1.1rem;letter-spacing:.03em}.desktop-nav[data-astro-cid-xbstl6g3]{margin-left:auto;display:flex;gap:1.4rem}.desktop-nav[data-astro-cid-xbstl6g3] a[data-astro-cid-xbstl6g3]{text-decoration:none;color:var(--muted);font-size:.85rem;letter-spacing:.02em;padding:4px 0}.desktop-nav[data-astro-cid-xbstl6g3] a[data-astro-cid-xbstl6g3]:hover{color:var(--ink)}.desktop-nav[data-astro-cid-xbstl6g3] a[data-astro-cid-xbstl6g3].active{color:var(--ink);font-weight:700}#nav-toggle[data-astro-cid-xbstl6g3]{display:none;margin-left:auto;background:none;border:none;padding:6px;cursor:pointer;line-height:0}#mobile-nav[data-astro-cid-xbstl6g3][hidden]{display:none}#mobile-nav[data-astro-cid-xbstl6g3]{display:flex;flex-direction:column;border-top:1px solid var(--line);background:var(--surface);position:fixed;top:var(--header-h);left:0;right:0;z-index:98;max-height:calc(100vh - var(--header-h));overflow-y:auto}#mobile-nav[data-astro-cid-xbstl6g3] a[data-astro-cid-xbstl6g3]{padding:12px 1.25rem;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--line);font-size:.95rem}.header-spacer[data-astro-cid-xbstl6g3]{height:var(--header-h)}@media (max-width: 720px){.desktop-nav[data-astro-cid-xbstl6g3]{display:none}#nav-toggle[data-astro-cid-xbstl6g3]{display:block}}footer[data-astro-cid-mtxgg6pp]{background:var(--surface-2);margin-top:var(--space-section)}.inner[data-astro-cid-mtxgg6pp]{max-width:var(--wide);margin:0 auto;padding:clamp(2.5rem,6vw,4rem) 1.25rem}.lead[data-astro-cid-mtxgg6pp]{font-size:.85rem;color:var(--muted);margin:0 0 var(--space-block)}.cols[data-astro-cid-mtxgg6pp]{display:flex;flex-wrap:wrap;gap:var(--space-block) 3.5rem}.cols[data-astro-cid-mtxgg6pp] h2[data-astro-cid-mtxgg6pp]{font-size:.72rem;color:var(--muted);margin:0 0 .7rem;letter-spacing:.08em;font-weight:700}.cols[data-astro-cid-mtxgg6pp] ul[data-astro-cid-mtxgg6pp]{margin:0;padding:0;display:flex;flex-direction:column;gap:.6rem}.cols[data-astro-cid-mtxgg6pp] a[data-astro-cid-mtxgg6pp]{text-decoration:none;color:var(--ink-2);font-size:.88rem}.cols[data-astro-cid-mtxgg6pp] a[data-astro-cid-mtxgg6pp]:hover{color:var(--ink)}.sns[data-astro-cid-mtxgg6pp]{display:inline-flex;align-items:center;gap:6px}.copy[data-astro-cid-mtxgg6pp]{margin:var(--space-block) 0 0;font-size:.75rem;color:var(--muted);text-align:center}:root{--ink: #232020;--ink-2: #57514c;--muted: #978f87;--line: #eceae4;--bg: #fdfcfa;--surface: #ffffff;--surface-2: #f7f6f2;--accent: #b5701a;--accent-weak: rgba(181, 112, 26, .1);--space-section: clamp(3.5rem, 9vw, 6rem);--space-block: 2rem;--space-md: 1.25rem;--space-sm: .75rem;--reading: 640px;--wide: 860px;--header-h: 56px;--radius: 14px;--radius-img: 12px;--shadow-img: 0 6px 26px rgba(30, 25, 20, .08)}*{box-sizing:border-box}html{font-family:system-ui,-apple-system,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;color:var(--ink);background:var(--bg);-webkit-text-size-adjust:100%}body{margin:0;font-size:16.5px;line-height:1.95;letter-spacing:.01em}code{font-family:Menlo,Monaco,Liberation Mono,Courier New,monospace}main{display:block;max-width:var(--wide);margin:0 auto;padding:clamp(2.5rem,6vw,4.5rem) 1.25rem var(--space-section)}main>section{display:flex;flex-direction:column;gap:var(--space-md);margin-bottom:var(--space-section)}main>section:last-child{margin-bottom:0}main>section.reading{max-width:var(--reading);margin-left:auto;margin-right:auto}h1,h2,h3,h4{color:var(--ink);line-height:1.5;letter-spacing:.02em;margin:0;font-weight:700}h1{font-size:clamp(1.4rem,3.5vw,1.7rem)}h2{font-size:1.15rem}h3{font-size:1rem}p{margin:0 0 1em;color:var(--ink)}p:last-child{margin-bottom:0}a{color:var(--accent);text-underline-offset:2px}ul{list-style:none}strong{font-weight:700}.muted{color:var(--muted);font-size:.82rem;line-height:1.7}.meta{color:var(--muted);font-size:.8rem;letter-spacing:.04em}.page-head{text-align:center;margin:clamp(1rem,4vw,2.5rem) 0 clamp(1.5rem,5vw,3rem);display:flex;flex-direction:column;gap:.6rem;align-items:center}.column-between{display:flex;flex-direction:column;gap:var(--space-md)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--surface);padding:11px 22px;border-radius:999px;font-size:.9rem;text-decoration:none;color:var(--ink);transition:.15s ease;cursor:pointer}.btn:hover{border-color:var(--ink-2)}.btn.primary{background:var(--ink);border-color:var(--ink);color:#fff}.btn.primary:hover{background:#000}img{max-width:100%}.page-ad{max-width:var(--reading);margin:var(--space-section) auto;padding:0 1.25rem}