:root{--ink:#17323d;--ink-soft:#3f5964;--ocean:#0b6e8a;--ocean-deep:#08445a;--foam:#e8f6fa;--sand:#f7f2e8;--line:#cfdde3;--cta:#c2410c;--cta-hover:#9a3412;--warn-bg:#fff4d6;--warn-ink:#5c4300;--error:#b42318;--radius:12px;--gutter:16px}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{color:var(--ink);overflow-wrap:anywhere;background:#fff;margin:0;font-family:Hiragino Sans,Yu Gothic UI,Meiryo,system-ui,sans-serif;font-size:1rem;line-height:1.8}img,svg{max-width:100%;height:auto}a{color:var(--ocean-deep)}h1,h2,h3{color:var(--ocean-deep);margin:0 0 .6em;line-height:1.4}h1{font-size:clamp(1.5rem,6vw,2.25rem)}h2{font-size:clamp(1.25rem,4.5vw,1.625rem)}h3{font-size:1.0625rem}p{margin:0 0 1em}ul,ol{margin:0 0 1em;padding-left:1.3em}.container{width:100%;max-width:960px;padding-inline:var(--gutter);margin-inline:auto}.small{color:var(--ink-soft);font-size:.875rem}:focus-visible{outline-offset:2px;outline:3px solid 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