:root{--bg: #ffffff;--surface: #ffffff;--surface-strong: #fafafa;--surface-tint: #f7f7f7;--text: #111111;--muted: #6b6b6b;--line: #e8e8e8;--accent: #111111;--accent-deep: #000000;--accent-soft: #f1f1f1;--accent-gold: #111111;--max: 1248px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif}*{box-sizing:border-box}body{margin:0;color:var(--text);background:var(--bg)}a{color:var(--text);text-decoration:none;text-decoration-color:var(--accent);text-underline-offset:.18em}.inner,.page>*{width:min(calc(100% - 2.5rem),var(--max));margin:0 auto}.page>section,.page>div,.page>article,.page>nav{margin-top:0}.site-header,.site-footer{background:#fffffff5}.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.site-header .inner{padding:.65rem 0;display:grid;grid-template-columns:max-content minmax(21rem,34rem) 1fr;gap:1.6rem;align-items:center}.global-search{grid-column:2;min-width:0}.global-search-field{display:block;width:100%;position:relative}.global-search-field:before{content:"⌕";position:absolute;left:.9rem;top:50%;transform:translateY(-52%);color:var(--muted);font-size:1rem;pointer-events:none}.global-search-field input{width:100%;height:2.35rem;border:1px solid transparent;border-radius:999px;background:#f4f4f4;color:var(--text);font:inherit;font-size:.94rem;padding:.45rem .9rem .45rem 2.25rem;outline:none}.global-search-field input:focus{background:#fff;border-color:#d8d8d8}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.brand{display:inline-flex;align-items:center;gap:.7rem;min-width:0;text-decoration:none}.brand-mark{display:block;width:1.95rem;height:1.95rem;flex-shrink:0}.brand-text{display:block;min-width:0}.brand-text strong{display:block;font-size:1.18rem;font-weight:700;line-height:1}.page{padding:1.35rem 0 4rem;display:grid;gap:1.2rem}.hero,.panel,.entry-card,.detail-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:none}.hero{padding:1.6rem 1.7rem;margin-bottom:0}.hero p,.panel p,.entry-card p,.detail-card p{color:var(--muted);line-height:1.75}.panel+.panel{margin-top:0}.section-grid,.card-grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.feature-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:1rem}.hero-grid{display:grid;gap:1.2rem;grid-template-columns:1.5fr .9fr;align-items:start}.entry-card,.detail-card,.panel{padding:1.1rem}.detail-card{padding:1.5rem}.entry-card{transition:border-color .16s ease,background-color .16s ease}.entry-card:hover{border-color:#d7d7d7;background-color:#fcfcfc}.entry-meta,.eyebrow{color:var(--muted);font-size:.9rem}.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.75rem;color:var(--muted)}.hero h1{font-size:clamp(1.55rem,2.8vw,2.2rem);margin-bottom:.7rem;max-width:none;letter-spacing:-.02em;text-wrap:balance}.hero-lead{font-size:.98rem;max-width:62ch}.hero-stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem}.hero-stat-grid.is-pair{grid-template-columns:repeat(2,minmax(0,1fr));max-width:19rem;margin-left:auto}.hero-stat{padding:1rem;border-radius:12px;background:var(--surface-strong);border:1px solid var(--line)}.hero-stat strong{display:block;font-size:1.45rem;color:var(--accent-deep);margin-bottom:.25rem}.hero-stat span{color:var(--muted);font-size:.9rem}h1,h2,h3{line-height:1.2;margin-top:0}h2{font-size:1.35rem;margin-bottom:.85rem;letter-spacing:-.01em}h3{font-size:1.02rem;margin-bottom:.55rem;letter-spacing:-.01em}.breadcrumbs ol,.link-list{list-style:none;padding:0;margin:0}.breadcrumbs{margin-bottom:1rem}.breadcrumbs ol{display:flex;gap:.6rem;flex-wrap:wrap;color:var(--muted);font-size:.9rem}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:.6rem}.content-wrap{display:grid;gap:1.2rem}.article-page{width:100%;max-width:760px;margin-inline:auto}.split-grid{display:grid;gap:1.2rem;grid-template-columns:minmax(0,1.9fr) minmax(260px,.9fr)}.article-related-grid{display:grid;gap:1.2rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.link-list{display:grid;gap:.6rem}.detail-card h2,.detail-card h3,.detail-card h4{margin-top:2rem}.detail-card h2:first-child,.detail-card h3:first-child,.detail-card h4:first-child{margin-top:0}.detail-card p,.detail-card li{font-size:1rem;line-height:1.95}.detail-card ul,.detail-card ol{padding-left:1.3rem}.detail-card li+li{margin-top:.35rem}.detail-card strong{color:var(--accent-deep)}.detail-hero{padding:1.7rem 1.8rem 1.5rem}.meta-pills{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1rem}.meta-pill{display:inline-flex;align-items:center;min-height:2rem;padding:.35rem .7rem;border:1px solid var(--line);border-radius:999px;background:var(--surface-strong);color:var(--muted);font-size:.86rem}.article-detail{padding:1.8rem 1.9rem}.article-detail>:first-child{margin-top:0}.article-detail>:last-child{margin-bottom:0}.article-detail p{max-width:66ch;text-wrap:pretty}.detail-subsection{margin-top:2.2rem;padding-top:1.35rem;border-top:1px solid var(--line)}.side-stack{align-content:start;position:sticky;top:calc(72px + 1rem);align-self:start}.side-stack>*{margin:0}.info-panel{background:var(--surface-strong)}.info-list{margin:0;display:grid;gap:.9rem}.info-list div{display:grid;gap:.2rem}.info-list dt{font-size:.8rem;color:var(--muted)}.info-list dd{margin:0;font-size:.98rem;color:var(--text)}.dense-link-list{gap:.5rem}.dense-link-list li a{display:block;padding:.55rem .65rem;border-radius:10px;border:1px solid var(--line);background:var(--surface)}.dense-link-list li a:hover{background:#fcfcfc}.related-card-list{list-style:none;padding:0;margin:0;display:grid;gap:.7rem}.related-card{display:grid;gap:.4rem;padding:.8rem .85rem;border-radius:12px;border:1px solid var(--line);background:var(--surface)}.related-card:hover{background:#fcfcfc}.related-card-meta{margin:0;color:var(--muted);font-size:.78rem;line-height:1.5}.related-card strong{font-size:.98rem;line-height:1.5;color:var(--text)}.related-card span{color:var(--muted);font-size:.9rem;line-height:1.65}.section-heading{display:flex;justify-content:space-between;gap:1rem;align-items:baseline;margin-bottom:.9rem}.section-heading p{margin:0;font-size:.92rem}.mini-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.8rem}.mini-card{padding:1rem;border-radius:12px;background:var(--surface-tint);border:1px solid var(--line)}.mini-card p{margin:.35rem 0 0;font-size:.92rem}.tag-cloud{display:flex;flex-wrap:wrap;gap:.65rem}.tag-pill{display:inline-flex;align-items:center;padding:.5rem .82rem;border-radius:999px;background:#f7f7f7;border:1px solid var(--line);text-decoration:none;font-size:.92rem}.tag-pill:hover{background:#f2f2f2}.shelf-grid{display:grid;gap:.9rem}.shelf-card{padding:1.15rem;border-radius:14px;background:var(--surface-strong);border:1px solid var(--line)}.shelf-card h3{margin-bottom:.35rem}.shelf-card p{margin-bottom:.8rem}.shelf-links{display:flex;flex-wrap:wrap;gap:.55rem}.site-footer{border-top:1px solid var(--line)}.site-footer .inner{padding:1.5rem 0 2rem}@media(max-width:800px){.site-header .inner{display:flex;align-items:stretch;flex-direction:column;gap:.7rem}.global-search-field{width:100%}.brand-mark{width:2rem;height:2rem}.feature-grid,.hero-grid,.split-grid{grid-template-columns:1fr}.side-stack{position:static;top:auto}.article-detail{padding:1.45rem}.detail-hero{padding:1.4rem}.hero{padding:1.35rem}.hero h1{max-width:none}.hero-stat-grid{grid-template-columns:1fr}}@media(max-width:560px){.brand{gap:.6rem}.brand-mark{width:1.85rem;height:1.85rem}.brand-text strong{font-size:1.1rem}}