:root{--background:#f7f6f2;--surface:#fff;--foreground:#202824;--muted:#56635d;--accent:#235c49;--accent-hover:#194735;--accent-soft:#e7efe9;--border:#d6ddd7;--control-border:#748279;--highlight:#f6e5a6;--danger:#a33127;--focus:#235c49}*{box-sizing:border-box}html{scroll-behavior:auto;scroll-padding-top:24px}body{margin:0;background:var(--background);color:var(--foreground);font-family:system-ui,-apple-system,Segoe UI,Hiragino Sans,Yu Gothic UI,Noto Sans JP,Meiryo,sans-serif;font-size:16px;line-height:1.8}a{color:var(--accent);text-underline-offset:4px}button,input{font:inherit}a,button,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait}button{color:inherit}a,button{transition:background-color .12s,color .12s}a:hover{color:var(--accent-hover)}:focus-visible{outline:3px solid 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