body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #eef3f8;
  font-family: system-ui, -apple-system, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  color: #1d2733;
}

.card {
  width: min(92vw, 460px);
  background: #fff;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

h1 {
  margin: 0 0 12px;
  font-size: 1.5rem;
}

.status {
  color: #5b6b7c;
}

.status.error {
  color: #b42318;
}

.metric {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #e6ebf1;
}

.label {
  color: #5b6b7c;
}

.value {
  font-weight: 600;
}

.meta {
  font-size: 0.85rem;
  color: #5b6b7c;
  margin: 8px 0 0;
}