.demo-notice {
  position: fixed;
  right: 12px;
  bottom: 12px;
  z-index: 2147483000;
  max-width: calc(100vw - 24px);
  padding: 8px 14px;
  border: 1px solid #a96e00;
  border-radius: 8px;
  background: #fff1c2;
  color: #563600;
  font: 700 14px/1.4 system-ui, sans-serif;
  text-align: center;
  pointer-events: none;
}

@media print {
  .demo-notice { position: static; }
}