body{margin:0;min-height:100vh;display:grid;place-items:center;font-family:system-ui,-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif;color:#151515;background:#fff}
main{text-align:center;padding:24px}
h1{font-size:20px;margin:16px 0 8px}
p{color:#5a5a5a;margin:0}