:root{color-scheme:light;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Yu Gothic",Meiryo,sans-serif;color:#283340;background:#f7f8fa;font-size:16px;line-height:1.8}
*{box-sizing:border-box}body{margin:0;min-height:100dvh;display:grid;place-items:center;padding:2rem}
main{width:min(100%,38rem);padding:2.5rem 0;border-top:2px solid #c9d1da}
h1{font-size:2rem;font-weight:600;line-height:1.4;margin:0 0 1.5rem}
p{font-size:1rem;color:#65717f;margin:.5rem 0;overflow-wrap:anywhere}