*{box-sizing:border-box}
body{margin:0;background:#e9f7ef;color:#111;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.container{max-width:860px;margin:0 auto;padding:24px;padding-bottom:calc(24px + env(safe-area-inset-bottom))}
.title{font-size:22px;margin:0 0 14px}
.subtitle{font-size:16px;margin:0 0 12px}
.card{background:#fff;border:1px solid #e6e8ef;border-radius:12px;padding:16px;margin-bottom:16px}
.form{display:flex;flex-direction:column;gap:12px}
.row{display:flex;gap:12px;align-items:flex-start}
.row.split{align-items:center;justify-content:space-between}
.label{width:220px;font-size:14px;line-height:32px;color:#333;flex:0 0 auto}
.control{display:flex;gap:16px;flex-wrap:wrap;padding-top:6px}
.input{flex:1;border:1px solid #d7dbe7;border-radius:10px;padding:8px 10px;font-size:14px;min-height:36px}
.radio{display:flex;gap:6px;align-items:center;font-size:14px;color:#222}
.btn{border:0;border-radius:10px;background:#1677ff;color:#fff;padding:10px 14px;font-size:14px;cursor:pointer}
.btn:disabled{opacity:.6;cursor:not-allowed}
.amount{font-size:14px;color:#222}
.error{min-height:20px;color:#d21c1c;font-size:13px}
.success{margin-top:12px;color:#0f7b2b;font-size:14px}
.hidden{display:none}
.req{color:#d21c1c;margin-right:4px}
.success-center{display:flex;align-items:center;justify-content:center;min-height:160px;font-size:16px}
.pay-grid{display:grid;grid-template-columns:280px 1fr;gap:16px}
.qr-wrap{display:flex;flex-direction:column;align-items:center;gap:8px}
.qr{width:260px;height:260px;border:1px solid #e6e8ef;border-radius:12px;max-width:100%;object-fit:contain}
.hint{font-size:13px;color:#666}
.pay-meta{display:flex;flex-direction:column;gap:10px;font-size:14px}
.kv{display:grid;grid-template-columns:72px 1fr;gap:10px}
.k{color:#666}
.v{color:#111;word-break:break-all}
.link{color:#1677ff;text-decoration:none}
@media (max-width: 720px){
  .label{width:120px}
  .pay-grid{grid-template-columns:1fr}
  .row.split{flex-direction:column;align-items:stretch;gap:10px}
}

@media (max-width: 520px){
  body{background:#e9f7ef}
  .container{max-width:520px;padding:14px;padding-bottom:calc(14px + env(safe-area-inset-bottom))}
  .title{font-size:20px}
  .card{border:0;border-radius:14px;padding:14px;box-shadow:0 6px 20px rgba(15, 23, 42, .08)}
  .row{flex-direction:column;gap:6px}
  .label{width:auto;line-height:20px;font-size:14px}
  .control{padding-top:0;gap:12px}
  .input{width:100%;min-height:44px;font-size:16px}
  .radio{font-size:15px}
  .btn{width:100%;padding:12px 14px;font-size:16px}
  .amount{font-size:15px}
  .pay-grid{gap:12px}
  .qr{width:220px;height:220px}
  .kv{grid-template-columns:86px 1fr}
}