body{margin:0;background:#f4f6f2;color:#183530;font:16px 'Microsoft JhengHei',sans-serif}main{max-width:560px;margin:7vh auto;padding:28px;background:white;border-radius:20px;box-shadow:0 8px 50px #123e3410}h1{font-size:30px}p{line-height:1.7}form,label{display:grid;gap:12px}label{margin:8px 0}input,button{font:inherit;padding:13px;border:1px solid #cad8cf;border-radius:9px}button{background:#125c4a;color:white;cursor:pointer}.note{font-size:13px;color:#657a72}[hidden]{display:none}@media(max-width:600px){main{margin:20px;padding:20px}}