:root{--pink:#ff568c;--blue:#b81e58;--ink:#29314d;--muted:#62677c;--line:#f0dce5;--bg:#fff7fa;--yellow:#ffe26c;--mint:#d9f5ed;--shadow:0 5px 0 #f3dce6}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:var(--bg);background-image:radial-gradient(#f2dbe5 1px,transparent 1px);background-size:22px 22px;font-family:ui-rounded,'Hiragino Maru Gothic ProN',-apple-system,BlinkMacSystemFont,'Noto Sans JP',sans-serif;font-size:16px;line-height:1.7}a{color:var(--blue);text-underline-offset:4px}header{max-width:1240px;margin:auto;padding:22px 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