:root{font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:#263b30;background:#f6f8f7}*{box-sizing:border-box}main{max-width:420px;margin:12vh auto;padding:34px;background:white;border:1px solid #dde6df;border-radius:14px}.brand{font-size:11px;letter-spacing:2px;color:#748a7b}h1{font-size:26px;margin:24px 0 10px}p{font-size:13px;line-height:1.8;color:#7c8c82}form{display:grid;gap:10px;margin:25px 0}label{font-size:13px;margin-top:10px}input,button{font:inherit;border:1px solid #dbe5de;border-radius:8px;padding:12px}button{background:#227a5a;color:white;margin-top:12px;cursor:pointer}a{color:#227a5a;font-size:12px}.hint{font-size:11px;margin-top:24px}.error{background:#fff0ef;padding:10px;color:#a14136;border-radius:7px}@media(max-width:500px){main{margin:9vh 16px;padding:25px}}