body{margin:0;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#fffaf2;color:#333;font-size:16px;line-height:1.6}
main{max-width:420px;margin:0 auto;padding:24px 16px}
h1{font-size:24px;margin:8px 0 16px}
h2{font-size:18px;margin:0 0 8px}
p{margin:8px 0}
a{color:#9a5200}
section{background:#fff;border-radius:12px;padding:12px 16px;margin:16px 0}
label{display:block;margin:12px 0 4px}
input{box-sizing:border-box;display:block;width:100%;min-height:44px;margin-top:4px;padding:8px 12px;font-size:16px;color:#333;background:#fff;border:1px solid #d8c8ae;border-radius:8px}
button,.btn{box-sizing:border-box;display:block;width:100%;min-height:44px;margin:12px 0;padding:10px 16px;font-size:17px;text-align:center;text-decoration:none;color:#fff;background:#b45f06;border:0;border-radius:8px;cursor:pointer}
.err{color:#b3261e}
.ok{background:#e7f6e7;border-radius:8px;padding:8px 12px}
.muted,.danger{color:#6b6b6b;font-size:14px}
.code{font-size:22px;font-weight:bold;word-break:break-all}