:root{--navy: #1f2a44;--navy-deep: #16203a;--cream: #f6f1e6;--cream-deep: #ece4d2;--ink: #23262d;--muted: #6b7180;--accent: #c0862c;--line: #d9d2c2;--max: 1040px}*{box-sizing:border-box}html{font-size:17px;-webkit-text-size-adjust:100%}body{margin:0;font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic,Meiryo,system-ui,sans-serif;color:var(--ink);background:var(--cream);line-height:1.85;letter-spacing:.01em}a{color:var(--navy)}img{max-width:100%;height:auto}.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}.site-header{background:var(--navy);color:#fff}.site-header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px;flex-wrap:wrap}.brand{color:#fff;text-decoration:none;font-weight:700;font-size:1.15rem;letter-spacing:.04em}.brand small{display:block;font-size:.72rem;font-weight:400;opacity:.8;letter-spacing:.08em}.nav{display:flex;gap:6px 18px;flex-wrap:wrap;font-size:.92rem}.nav a{color:#fff;text-decoration:none;opacity:.9;padding:6px 0;border-bottom:2px solid transparent}.nav a:hover,.nav a[aria-current=page]{opacity:1;border-bottom-color:var(--accent)}.hero{background:var(--navy);color:#fff;padding:56px 0 64px}.hero h1{font-size:clamp(1.6rem,4vw,2.4rem);line-height:1.4;margin:0 0 14px}.hero p{max-width:640px;margin:0 0 24px;opacity:.92}.btn{display:inline-block;background:var(--cream);color:var(--navy);text-decoration:none;font-weight:700;padding:12px 22px;border-radius:8px}.btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6);margin-left:10px}main{padding:48px 0 72px}.section{margin-bottom:56px}.section h2{font-size:1.35rem;border-left:5px solid var(--accent);padding-left:12px;margin:0 0 20px}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;text-decoration:none;color:var(--ink);display:block}.card:hover{border-color:var(--navy)}.card h3{font-size:1.05rem;margin:0 0 8px;color:var(--navy)}.card p{margin:0;font-size:.92rem;color:var(--muted)}.tag{display:inline-block;font-size:.75rem;background:var(--cream-deep);color:var(--navy);border-radius:999px;padding:2px 10px;margin-bottom:10px}.prose{max-width:720px}.prose h1{font-size:1.8rem;line-height:1.4}.prose h2{font-size:1.3rem;margin-top:2.2em;border-left:5px solid var(--accent);padding-left:12px}.prose blockquote{background:#fff;border:1px solid var(--line);border-radius:10px;margin:1.2em 0;padding:14px 18px}.site-footer{background:var(--navy-deep);color:#ffffffd9;font-size:.85rem;padding:32px 0}.site-footer a{color:#fff}.site-footer .links{display:flex;gap:8px 20px;flex-wrap:wrap;margin-bottom:12px}.card .cta{color:var(--accent);font-weight:700;margin-top:10px;font-size:.9rem}.note{font-size:.8rem;color:var(--muted);margin-top:40px}.card.book{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:start}.card.book .cover{width:96px;height:auto;aspect-ratio:5 / 8;object-fit:cover;border-radius:4px;box-shadow:0 2px 8px #00000026;background:var(--cream-deep);grid-row:1 / span 4}.card.book .tag,.card.book h3,.card.book p{grid-column:2}@media(max-width:480px){.cards{grid-template-columns:1fr}}.crumbs{font-size:.85rem;color:var(--muted);margin:8px 0 4px}.meta{font-size:.85rem;color:var(--muted)}.toc{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin:20px 0 28px;font-size:.95rem}.toc ol{margin:8px 0 0;padding-left:1.4em}.article h3{font-size:1.08rem;margin-top:1.8em}.article table{border-collapse:collapse;width:100%;font-size:.92rem;background:#fff}.article th,.article td{border:1px solid var(--line);padding:8px 10px;vertical-align:top;text-align:left}.article th{background:var(--cream-deep)}.ngok{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:14px 0}.ngok p{margin:6px 0}.article .ng,.article .ok{display:inline-block;font-weight:700;border-radius:4px;padding:0 8px;margin-right:8px;font-size:.85rem}.article .ng{background:#f3d9d9;color:#8c2020}.article .ok{background:#d9ebdc;color:#1f5f2a}.faq details{background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 14px;margin:10px 0}.faq summary{cursor:pointer;font-weight:700}.related .cards{margin-top:12px}.related .booth{margin-top:16px}.tags .tag{margin-right:6px}
