:root{--ink:#14171a;--navy:#1d4f7c;--navy-dark:#123a5e;--body:#5b6169;--muted:#6b7279;--muted-dark:#8a9199;--on-dark:#a9b0b8;--sky:#7fa8cc;--line:#e3e6ea;--line-dark:#2c3137;--border:#cfd4da;--surface:#f4f5f7;--text-alt:#41474e;--maxw:1180px;--pad-x:clamp(18px, 4vw, 40px);--header-h:68px;--font-sans:"IBM Plex Sans", "IBM Plex Sans JP", system-ui, sans-serif;--font-mono:"IBM Plex Mono", ui-monospace, Menlo, monospace}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;background:#fff;margin:0}body.is-locked{overflow:hidden}a{color:var(--navy);text-decoration:none}a:hover{color:var(--navy-dark)}h1,h2,h3,h4,label,button,input,textarea,select{font-family:var(--font-sans)}input,textarea,select,button{font-family:inherit}:focus-visible{outline:2px solid var(--navy);outline-offset:2px}img{max-width:100%;display:block}[hidden]{display:none!important}@media 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