:root{
  --bg:#0d1117;
  --card:#161b22;
  --line:#232a33;
  --fg:#e6edf3;
  --dim:#8b949e;
  --accent:#2f81f7;
  --accent-press:#1f6feb;
  --ok:#3fb950;
  --warn:#d29922;
  --err:#f85149;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Arial,sans-serif;
  padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.wrap{
  max-width:520px;margin:0 auto;
  min-height:100vh;
  padding:28px 20px 40px;
  display:flex;flex-direction:column;
}

/* 信息块 */
.block{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  padding:16px 18px;
  margin-bottom:14px;
}
.label{font-size:13px;color:var(--dim);margin-bottom:8px;letter-spacing:.02em}
.value{font-size:17px;word-break:break-all;font-variant-numeric:tabular-nums}
.amount{font-size:34px;font-weight:650;line-height:1.2;display:flex;align-items:baseline;gap:8px}
.amount .unit{font-size:15px;font-weight:500;color:var(--dim)}

/* 支付按钮居中 */
.pay-area{
  flex:1;
  display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  padding:24px 0;
}
.pay-btn{
  width:100%;max-width:320px;
  padding:17px 0;
  font-size:18px;font-weight:600;letter-spacing:.24em;text-indent:.24em;
  color:#fff;background:var(--accent);
  border:0;border-radius:12px;
  box-shadow:0 6px 20px rgba(47,129,247,.28);
  transition:transform .06s ease,background .15s ease,opacity .15s ease;
}
.pay-btn:active{transform:scale(.985);background:var(--accent-press)}
.pay-btn:disabled{opacity:.55;background:#39414c;box-shadow:none}
.hint{margin-top:14px;font-size:13px;color:var(--dim);text-align:center;min-height:20px;max-width:320px}

/* 进度 */
.progress{
  display:flex;align-items:center;gap:12px;
  background:var(--card);border:1px solid var(--line);
  border-radius:12px;padding:14px 16px;margin-bottom:14px;
}
.spinner{
  width:18px;height:18px;flex:0 0 18px;border-radius:50%;
  border:2px solid rgba(139,148,158,.3);
  border-top-color:var(--accent);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.ptext{font-size:14px;color:var(--fg)}

/* 完成 */
.done{
  background:rgba(63,185,80,.08);
  border:1px solid rgba(63,185,80,.3);
  border-radius:12px;padding:16px;margin-bottom:14px;
}
.done-title{font-size:15px;font-weight:600;color:var(--ok);margin-bottom:10px}
.done-row{display:flex;gap:10px;font-size:13px;margin:6px 0;color:var(--dim)}
.done-row span:first-child{flex:0 0 62px;color:var(--dim)}
.done-row code,.done-row span:last-child{
  color:var(--fg);word-break:break-all;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;
}
.explorer{display:inline-block;margin-top:12px;font-size:13px;color:var(--accent);text-decoration:none}

/* 错误 */
.errbox{
  background:rgba(248,81,73,.08);
  border:1px solid rgba(248,81,73,.3);
  border-radius:12px;padding:16px;margin-bottom:14px;
}
.err-title{font-size:15px;font-weight:600;color:var(--err);margin-bottom:8px}
.err-text{font-size:13px;color:var(--fg);word-break:break-all;line-height:1.6}
.retry{
  margin-top:14px;width:100%;padding:12px 0;font-size:14px;
  color:var(--fg);background:transparent;border:1px solid var(--line);border-radius:10px;
}
.retry:active{background:#1c2229}