/* 水光位于背景之上、正文之下；不改光标，也不接管点击或页面滑动。 */
.fluid-pointer-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  user-select: none;
  contain: strict;
}
.fluid-pointer-layer[hidden] { display: none; }
@media (prefers-reduced-motion: reduce), (forced-colors: active) {
  .fluid-pointer-layer { display: none; }
}