:root{--ink:#1b2430;--muted:#5a6472;--faint:#8b95a3;--bg:#f2f4f6;--surface:#fff;--line:#dde3ea;--primary:#001650;--primary-deep:#14306e;--primary-soft:#e9edf6;--amber:#a8690f;--amber-soft:#f6ecd9;--danger:#ad3e36;--danger-soft:#f7e5e3;--gray-soft:#e9edf1;--radius:10px;--tap:44px;--font-body:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic UI",system-ui,sans-serif;--font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:var(--font-body);background:var(--bg);color:var(--ink);font-size:15px;line-height:1.7;-webkit-text-size-adjust:100%}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:2px solid 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