*{box-sizing:border-box}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:#f5f6f8;color:#222;margin:0;padding:24px 12px}
.wrap{max-width:640px;margin:0 auto;background:#fff;border-radius:12px;padding:28px;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.wrap.wide{max-width:960px}
h1{font-size:22px;margin:0 0 4px}
.muted{color:#888;font-size:13px}
label{display:block;margin:14px 0;font-size:14px}
input,select,textarea{width:100%;margin-top:6px;padding:10px;border:1px solid #ddd;border-radius:8px;font-size:14px;font-family:inherit}
textarea{font-family:ui-monospace,Consolas,monospace;font-size:12px}
button{background:#10a37f;color:#fff;border:0;border-radius:8px;padding:10px 22px;font-size:15px;cursor:pointer;margin-top:8px}
button:disabled{background:#999}
button+button{margin-left:8px;background:#666}
.hint{font-size:12px;color:#999;margin:6px 0 0}
.payinfo{background:#f0faf6;border:1px solid #cdeadb;border-radius:8px;padding:10px;font-size:13px;margin-top:6px;word-break:break-all}
.agree{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:#555}
.agree input{width:auto;margin-top:3px}
.result{margin-top:18px;background:#f7f9ff;border:1px solid #d5def5;border-radius:8px;padding:14px;font-size:14px;line-height:1.8;word-break:break-all}
.hidden{display:none}
code{background:#eee;padding:2px 6px;border-radius:4px;font-size:13px}
.card{border:1px solid #e3e6ea;border-radius:10px;padding:14px;margin:12px 0;font-size:13px;line-height:2}
.card select,.card input{width:auto;display:inline-block;margin:4px 6px 4px 0;padding:6px}
.card button{padding:6px 14px;font-size:13px}
.warn{color:#c00;font-weight:bold}
details{margin-top:6px}
ul{margin:6px 0;padding-left:20px}