网站灰白

html {
  position: relative;
  width: 100%;
  height: auto;
  overflow: scroll;
  background: #fff;
}

html::before {
  position: absolute;
  inset: 0;
  z-index: 999999999999999999;
  pointer-events: none;
  content: "";
  background: rgb(0 0 0);
  mix-blend-mode: color;
}