:root{--paper:#f7f5ef;--surface:#fffdf8;--ink:#222526;--muted:#5d625f;--line:#d5d1c7;--accent:#47645b;--accent-dark:#29443c;--warm:#b78f5e;color:var(--ink);background:var(--paper);font-family:Hiragino Sans,Yu Gothic,Noto Sans JP,system-ui,sans-serif;line-height:1.8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-width:320px;margin:0}a{color:inherit}a:focus-visible{outline:3px solid var(--warm);outline-offset:4px}.shell{width:min(100% - 2rem,72rem);margin-inline:auto}.narrow{width:min(100% - 2rem,46rem)}.skip-link{z-index:10;background:var(--ink);color:#fff;padding:.6rem 1rem;position:fixed;top:-5rem;left:1rem}.skip-link:focus{top:1rem}.site-header{border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--paper) 90%, transparent)}.header-inner,.footer-inner,.section-heading{justify-content:space-between;align-items:center;gap:1rem;display:flex}.header-inner{min-height:5rem}.brand{letter-spacing:.08em;font-family:Georgia,Hiragino Mincho 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0}.section-heading{align-items:end;margin-bottom:1.5rem}.section-heading h2,.note-block h2{margin:0;font-family:Georgia,Hiragino Mincho ProN,serif;font-size:clamp(1.7rem,4vw,2.5rem);line-height:1.35}.text-link{color:var(--accent-dark);text-underline-offset:.28em;font-weight:700;text-decoration-thickness:1px}.post-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr));gap:1rem;display:grid}.post-card{border:1px solid var(--line);background:var(--surface);flex-direction:column;min-height:15rem;padding:1.5rem;display:flex}.post-card h2{margin:0;font-family:Georgia,Hiragino Mincho ProN,serif;font-size:1.45rem;line-height:1.45}.post-card h2 a{text-decoration:none}.post-card h2 a:hover{text-underline-offset:.2em;text-decoration:underline}.post-card>p:not(.eyebrow){color:var(--muted)}.post-card .text-link{margin-top:auto}.note-block{border-top:1px solid var(--line)}.note-block>p:not(.kicker){max-width:42rem;color:var(--muted)}.page-intro{padding-top:clamp(3.5rem,8vw,6rem)}.page-intro h1{font-size:clamp(2.2rem,6vw,4rem)}.page-intro>p:not(.kicker){color:var(--muted)}.article{padding-top:clamp(3.5rem,8vw,6rem)}.article-header{border-bottom:1px solid var(--line);max-width:50rem;padding-bottom:2.5rem}.article-header h1{margin:0;font-family:Georgia,Hiragino Mincho ProN,serif;font-size:clamp(2.2rem,6vw,4.2rem);line-height:1.25}.prose{width:min(100%,46rem);padding:2.5rem 0;font-size:1.04rem}.article-eyecatch{border:1px solid var(--line);width:min(100%,46rem);height:auto;margin:2.5rem 0 0;display:block}.prose h2{margin-top:2.5rem;font-family:Georgia,Hiragino Mincho ProN,serif;font-size:1.7rem;line-height:1.4}.prose a{color:var(--accent-dark)}.prose blockquote{border-left:.25rem solid var(--warm);background:#eee9de;margin:1.5rem 0;padding:1rem 1.2rem}.article-footer{padding-bottom:5rem}.error-page{padding:clamp(5rem,16vw,11rem) 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