:root{color-scheme:light;--bg: #fff;--surface: #fff;--soft: #f4f6f9;--text: #1a1f2b;--muted: #4a5465;--line: #dde2ea;--navy: #0f2747;--navy-dark: #0a1c35;--brand: #1d4ed8;--brand-dark: #1e40af;--accent: #0f2747;--warn: #fff8e6;--warn-line: #f0d98a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Hiragino Sans,Yu Gothic UI,Meiryo,system-ui,sans-serif;line-height:1.85}a{color:var(--brand)}.wrap{max-width:1040px;margin:0 auto;padding:0 16px}.narrow{max-width:760px;margin:0 auto;padding:0 16px}header.site{background:#fff;border-top:4px solid var(--navy);border-bottom:1px solid var(--line)}header.site .wrap{display:flex;flex-wrap:wrap;gap:8px 28px;align-items:center;padding-top:10px;padding-bottom:10px}.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy)}.logo-icon{width:38px;height:38px;flex:none}.logo-text{font-size:1.45rem;line-height:1;letter-spacing:.01em;white-space:nowrap}.logo-text 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