html,
body {
  min-width: 1280px;
}

body::after {
  content: "网页演示模式 · 已阻断真实接口与写入操作";
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 10050;
  padding: 10px 16px;
  border: 1px solid rgba(47, 107, 255, 0.28);
  border-radius: 999px;
  color: #2058d8;
  background: rgba(239, 245, 255, 0.96);
  box-shadow: 0 10px 30px rgba(38, 83, 151, 0.16);
  font-size: 13px;
  font-weight: 700;
  pointer-events: none;
}

.wrap {
  min-width: 1280px;
}

.demo-runtime-toast {
  position: fixed;
  left: 50%;
  top: 22px;
  z-index: 11000;
  transform: translate(-50%, -14px);
  max-width: min(560px, calc(100vw - 48px));
  padding: 12px 18px;
  border: 1px solid #bdd2ff;
  border-radius: 12px;
  color: #1849b5;
  background: rgba(245, 249, 255, 0.98);
  box-shadow: 0 14px 34px rgba(27, 70, 145, 0.2);
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
}

.demo-runtime-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}