:root{--navy:#1e3a8a;--navy-deep:#14213d;--terracotta:#c2410c;--ink:#0f172a;--slate:#475569;--mute:#64748b;--line:#e2e8f0;--surface:#f8fafc;--maxw:720px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{color:var(--ink);-webkit-font-smoothing:antialiased;background:#fff;margin:0;font-family:Hiragino Kaku Gothic ProN,Hiragino Sans,Yu Gothic,Noto Sans JP,system-ui,sans-serif;line-height:1.85}a{color:var(--navy)}.site-head{border-bottom:1px solid var(--line)}.site-head .inner,.site-foot .inner,.prose{max-width:var(--maxw);margin:0 auto;padding:0 20px}.site-head .inner{align-items:center;gap:20px;height:60px;display:flex}.brand{color:var(--navy-deep);align-items:center;gap:9px;font-size:19px;font-weight:800;text-decoration:none;display:inline-flex}.brand-mark{width:28px;height:28px;display:inline-flex}.brand-mark svg{display:block}.site-head nav{gap:18px;margin-left:auto;font-size:14px;font-weight:600;display:flex}.site-head nav a{color:var(--slate);text-decoration:none}.site-head nav a:hover{color:var(--navy)}.head-cta{background:var(--navy);color:#fff;white-space:nowrap;border-radius:9px;padding:9px 18px;font-size:13.5px;font-weight:700;text-decoration:none}.head-cta:hover{background:var(--navy-deep)}@media (width<=560px){.site-head nav{gap:14px;font-size:13px}.head-cta{padding:8px 12px;font-size:12.5px}.brand{font-size:17px}}.crumb{color:var(--mute);flex-wrap:wrap;align-items:center;gap:6px;padding:18px 0 4px;font-size:12.5px;display:flex}.crumb a{color:var(--mute);text-decoration:none}.crumb a:hover{color:var(--navy);text-decoration:underline}.crumb .crumb-sep{color:#cbd5e1}.crumb [aria-current=page]{color:var(--slate);font-weight:600}.prose{padding-bottom:72px}.prose h1{letter-spacing:-.01em;color:var(--navy-deep);text-wrap:balance;margin:8px 0 20px;font-size:clamp(26px,4.4vw,34px);line-height:1.35}.prose h2{color:var(--navy-deep);border-bottom:2px solid var(--surface);margin:40px 0 12px;padding-bottom:8px;font-size:21px}.prose h3{color:var(--ink);margin:28px 0 8px;font-size:17px}.prose p{margin:0 0 16px}.prose ul,.prose ol{margin:0 0 16px;padding-left:1.4em}.prose li{margin:4px 0}.prose strong{font-weight:700}.prose blockquote{border-left:3px solid var(--terracotta);color:var(--slate);background:var(--surface);border-radius:0 8px 8px 0;margin:18px 0;padding:2px 16px}.prose table{border-collapse:collapse;border:1px solid var(--line);border-radius:12px;width:100%;margin:8px 0 28px;font-size:14px;overflow:hidden}.prose th,.prose td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:14px 16px;line-height:1.8}.prose thead th{background:var(--surface);color:var(--ink);font-weight:700}.prose tbody td:first-child,.prose tbody th[scope=row]{background:var(--surface);width:190px;color:var(--slate);font-weight:600}.prose tbody td:first-child strong{color:var(--ink)}.prose tbody tr:last-child th,.prose tbody tr:last-child td{border-bottom:none}@media (width<=560px){.prose table{font-size:13px}.prose th,.prose td{padding:11px 12px}.prose tbody td:first-child{width:116px}}.lede{color:var(--slate);font-size:17px}.ba{margin:26px 0 34px}.ba-src{background:var(--navy-deep);color:#fff;border-radius:14px;padding:20px}.ba-src-head{align-items:center;gap:12px;margin-bottom:12px;display:flex}.ba-mic{background:#ffffff1f;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;font-size:20px;display:flex}.ba-src-head b{font-size:14px;line-height:1.4;display:block}.ba-src-head small{color:#fff9;font-size:12px}.ba-src-body{color:#ffffffe6;margin:0;font-size:14px;line-height:1.95}.ba-src-body mark{color:#fff;background:#c2410c66;border-radius:3px;padding:0 3px}.ba-arrow{text-align:center;padding:12px 0}.ba-arrow span{color:var(--terracotta);align-items:center;gap:8px;font-size:12px;font-weight:700;display:inline-flex}.ba-arrow span:before{content:"↓";font-size:17px}.ba-outs{grid-template-columns:1fr 1fr;gap:12px;display:grid}.ba-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:14px 16px}.ba-card.wide{grid-column:1/-1}.ba-tag{letter-spacing:.04em;color:#fff;border-radius:5px;margin-bottom:8px;padding:3px 9px;font-size:10px;font-weight:800;display:inline-block}.ba-card p{color:var(--ink);margin:0;font-size:13px;line-height:1.75}.ba-card p+p{margin-top:9px}.ba-card p b{color:var(--slate);font-weight:700}.ba-card p.script{white-space:pre-line;font-variant-numeric:tabular-nums}.ba-card mark{color:var(--terracotta);background:#c2410c24;border-radius:3px;padding:0 2px;font-weight:600}.ba-keep{background:var(--surface);border:1px solid var(--line);color:var(--slate);border-radius:12px;margin:16px 0 0;padding:14px 16px;font-size:13.5px;line-height:1.85}.ba-keep b{color:var(--ink)}@media (width<=560px){.ba-outs{grid-template-columns:1fr}.ba-card.wide{grid-column:auto}}.fan{border:1px solid var(--line);background:var(--surface);border-radius:16px;grid-template-columns:auto auto 1fr;align-items:center;gap:18px;margin:26px 0 34px;padding:22px;display:grid}.fan-src{background:var(--navy-deep);color:#fff;text-align:center;border-radius:14px;width:150px;padding:18px 16px}.fan-src .ico{font-size:26px}.fan-src b{margin-top:6px;font-size:15px;display:block}.fan-src small{color:#ffffffa6;font-size:11px;line-height:1.5}.fan-arrow{color:var(--terracotta);font-size:22px;font-weight:800}.fan-arrow small{letter-spacing:.04em;font-size:10px;font-weight:700;display:block}.fan-outs{gap:8px;display:grid}.fan-chip{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:10px;align-items:center;gap:10px;padding:10px 14px;font-size:14px;font-weight:600;display:flex}.fan-chip span:last-child{color:var(--slate);font-size:12.5px;font-weight:400}.fan-dot{border-radius:3px;flex-shrink:0;width:11px;height:11px}@media (width<=560px){.fan{grid-template-columns:1fr;justify-items:center;gap:12px;padding:18px}.fan-src{width:100%;max-width:220px}.fan-arrow{transform:rotate(90deg)}.fan-outs{width:100%}}.cta{border:1px solid var(--line);background:var(--surface);text-align:center;border-radius:14px;margin:40px 0 0;padding:22px}.cta .btn{background:var(--terracotta);color:#fff;border-radius:10px;margin-top:12px;padding:12px 26px;font-weight:700;text-decoration:none;display:inline-block}.cta-inline{border-left:3px solid var(--terracotta);background:var(--surface);border-radius:0 8px 8px 0;margin:4px 0 24px;padding:12px 16px;font-size:14px}.cta-inline a{font-weight:600;text-decoration:none}.cta-inline a:hover{text-decoration:underline}.related{border:1px solid var(--line);border-radius:12px;margin:40px 0 0;padding:18px 20px}.related-label{letter-spacing:.04em;color:var(--slate);margin-bottom:8px;font-size:12px;font-weight:700;display:block}.related ul{flex-wrap:wrap;gap:8px 18px;margin:0;padding:0;list-style:none;display:flex}.related li{margin:0}.related a{font-weight:600;text-decoration:none}.related a:hover{text-decoration:underline}.post-list{padding:0;list-style:none}.post-list li{border-bottom:1px solid var(--line);padding:16px 0}.post-list a{font-size:17px;font-weight:700;text-decoration:none}.post-list .desc{color:var(--slate);margin-top:4px;font-size:14px}.site-foot{border-top:1px solid var(--line);color:var(--mute);padding:28px 0;font-size:13px}.site-foot a{color:var(--mute);margin-right:16px;text-decoration:none}