:root{color-scheme:light;--color-ink: #0d1b2e;--color-muted: #2b5e73;--color-soft: #f6f7f9;--color-line: #dde9f3;--color-panel: #ffffff;--color-ice: #8fb6cf;--color-pale: #dde9f3;--color-solar: #2b5e73;--color-cable: #0d1b2e;--radius: 4px;--shadow-soft: 0 18px 40px rgba(13, 27, 46, .07)}*{box-sizing:border-box}html{min-width:320px;background:var(--color-soft)}body{margin:0;color:var(--color-ink);font-family:Noto Sans JP,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.75;letter-spacing:0}a{color:inherit;text-decoration-color:#176f8a59;text-underline-offset:.2em}a:hover{color:var(--color-solar);text-decoration-color:currentColor}.site-header,.site-footer{width:min(1120px,calc(100% - 32px));margin:0 auto}.site-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 0}.site-logo,.site-nav{display:flex;align-items:center}.site-logo{gap:12px;font-weight:500;text-decoration:none}.site-logo__mark{display:grid;width:36px;height:36px;place-items:center;border:1px solid var(--color-ice);border-radius:var(--radius);background:var(--color-pale);color:var(--color-ink)}.site-logo__mark span{font-family:Cormorant Garamond,Georgia,serif;font-size:1.55rem;font-weight:600;line-height:1}.site-logo__wordmark{font-family:Cormorant Garamond,Georgia,serif;font-size:1.65rem;font-weight:600;line-height:1}.site-nav{gap:4px}.site-nav a{border-radius:var(--radius);padding:8px 12px;color:var(--color-muted);font-family:DM Sans,system-ui,sans-serif;font-size:.92rem;font-weight:700;text-decoration:none}.site-nav a:hover{background:var(--color-pale);color:var(--color-solar)}.site-footer{padding:48px 0 28px;color:var(--color-muted);font-size:.9rem}.section{padding:48px 0}.section--white{background:var(--color-panel)}.section__inner,.page-shell{width:min(1120px,calc(100% - 32px));margin:0 auto}.intro-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,440px);gap:32px;align-items:center;padding:36px 0 44px}.eyebrow{margin:0 0 8px;color:var(--color-solar);font-family:DM Sans,system-ui,sans-serif;font-size:.88rem;font-weight:800}h1,h2,h3{margin:0;line-height:1.25}h1{max-width:840px;font-size:4rem}h2{font-size:1.65rem}h3{font-size:1.05rem}.lead{max-width:720px;margin:18px 0 0;color:var(--color-muted);font-size:1.05rem}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.button{display:inline-flex;align-items:center;min-height:44px;border:1px solid var(--color-line);border-radius:var(--radius);padding:0 15px;background:var(--color-panel);color:var(--color-ink);font-family:DM Sans,Noto Sans JP,system-ui,sans-serif;font-weight:800;text-decoration:none}.button--primary{border-color:var(--color-cable);background:var(--color-cable);color:var(--color-panel)}.button:hover{transform:translateY(-1px)}.hero-photo{align-self:center;aspect-ratio:16 / 10;border:1px solid var(--color-line);border-radius:var(--radius);background:var(--color-pale);box-shadow:var(--shadow-soft);margin:0;overflow:hidden}.hero-photo img{display:block;width:100%;height:100%;object-fit:cover;object-position:58% 48%}.cluster{display:grid;gap:16px}.content-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:20px}.content-card,.term-chip,.related-list a{border:1px solid var(--color-line);border-radius:var(--radius);background:var(--color-panel)}.content-card{display:grid;gap:10px;padding:18px;text-decoration:none}.content-card:hover{border-color:var(--color-ice);box-shadow:0 8px 24px #2b5e731a}.meta{color:var(--color-muted);font-size:.86rem;font-weight:700}.summary{margin:0;color:var(--color-muted)}.category-block{display:grid;gap:14px;margin-top:30px}.category-block+.category-block{padding-top:26px;border-top:1px solid var(--color-line)}.category-block__header{display:flex;justify-content:space-between;gap:16px;align-items:end}.count{color:var(--color-muted);font-size:.9rem;font-weight:800}.article-header{padding:38px 0 26px}.article-shell{display:grid;grid-template-columns:minmax(0,760px) minmax(240px,1fr);gap:44px;align-items:start;width:min(1120px,calc(100% - 32px));margin:0 auto}.article-body{min-width:0}.article-body h2{margin-top:2.1em;padding-top:.3em;border-top:1px solid var(--color-line);font-size:1.45rem}.article-body p,.article-body ul,.article-body ol{color:var(--color-ink);font-size:1.02rem}.article-body li+li{margin-top:.35em}.side-panel{position:sticky;top:18px;display:grid;gap:18px}.detail-box{border:1px solid var(--color-line);border-radius:var(--radius);background:var(--color-panel);padding:18px}.detail-box h2,.detail-box h3{margin-bottom:12px;font-size:1rem}.term-list{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;list-style:none}.term-chip{display:inline-flex;align-items:center;min-height:34px;padding:4px 10px;color:var(--color-solar);font-weight:800;text-decoration:none}.related-list{display:grid;gap:10px;margin:0;padding:0;list-style:none}.related-list a{display:grid;gap:4px;padding:12px;text-decoration:none}.alias-list{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0 0;padding:0;list-style:none}.alias-list li{border-radius:var(--radius);background:var(--color-pale);padding:3px 8px;color:var(--color-muted);font-size:.86rem;font-weight:700}@media(max-width:860px){.intro-grid,.article-shell,.content-grid{grid-template-columns:1fr}.hero-photo{aspect-ratio:4 / 3}.side-panel{position:static}}@media(max-width:560px){h1{font-size:2.4rem}.site-header,.category-block__header{align-items:flex-start;flex-direction:column}}