:root{--primary: 218 100% 46%;--c-primary: hsl(var(--primary));--c-primary-600: hsl(218 100% 40%);--c-primary-700: hsl(218 100% 34%);--c-primary-050: hsl(218 100% 97%);--c-primary-100: hsl(218 96% 93%);--c-ink: hsl(220 20% 14%);--c-body: #334155;--c-muted: hsl(215 16% 42%);--c-line: #e2e8f0;--c-bg: #f5f7fb;--c-card: #ffffff;--c-slate-50: #f8fafc;--radius: 6px;--radius-card: 12px;--shadow-sm: 0 1px 2px 0 rgb(15 23 42 / .06);--shadow-md: 0 6px 20px -6px rgb(2 32 71 / .14);--green-bg: #dcfce7;--green-fg: #166534;--amber-bg: #fef3c7;--amber-fg: #78350f}*{box-sizing:border-box}html{-webkit-font-smoothing:antialiased;scroll-behavior:smooth}body{margin:0;font-family:Noto Sans JP,Hiragino Kaku Gothic ProN,Hiragino Sans,Meiryo,system-ui,sans-serif;background:var(--c-bg);color:var(--c-body);line-height:1.75;font-size:15.5px}h1,h2,h3,h4{color:var(--c-ink);margin:0;line-height:1.35}p{margin:0}a{color:var(--c-primary-600)}img{max-width:100%;height:auto}.wrap{max-width:1080px;margin:0 auto;padding:0 24px}.muted{color:var(--c-muted)}.site-header{background:#ffffffeb;backdrop-filter:blur(8px);border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:50}.site-header .inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}.brand{display:inline-flex;align-items:center;gap:6px;height:34px;text-decoration:none}.brand-icon{width:auto;height:100%;object-fit:contain}.brand-wordmark{width:auto;height:55%;object-fit:contain}.footer-brand{display:inline-flex;align-items:center;gap:6px;height:30px;text-decoration:none}.site-nav{display:flex;align-items:center;gap:20px;font-size:13.5px;font-weight:600}.site-nav a{color:var(--c-body);text-decoration:none}.site-nav a:hover{color:var(--c-primary-600)}.site-footer{border-top:1px solid var(--c-line);padding:36px 0 48px;color:var(--c-muted);font-size:12.5px;margin-top:56px}.site-footer .cols{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}.site-footer a{color:var(--c-muted)}.kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--c-primary-600)}.kicker:before{content:"";width:22px;height:2px;background:var(--c-primary);border-radius:2px}.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:3px 12px;font-size:12.5px;font-weight:700;line-height:1.6;border:1px solid transparent}.pill-pri{background:var(--c-primary-050);color:var(--c-primary-700);border-color:var(--c-primary-100)}.pill-green{background:var(--green-bg);color:var(--green-fg)}.pill-amber{background:var(--amber-bg);color:var(--amber-fg)}.pill-muted{background:#eef2f7;color:#475569}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--c-primary);color:#fff;font-weight:700;font-size:15px;height:48px;padding:0 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