.yx_BigBox {
  position: fixed;
  top: 0%;
  left: 50%;
  transform: translate(-50%,0%);
  width: 100%;
  height: 100%;
  display: none;
  z-index: 99999999;
  background: rgba(0,0,0,0.75);
}
.yx_BigBox .yx_BigContent {
  background: #fff;
  padding: var(--yx_FS18);
  border-radius: 10px;
  box-shadow: 0 0 16px rgb(0 0 0 / 50%);
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 9;
  transform: translate(-50%,-50%);
}

.yx_BigBox .yx_Img img {
  width: auto;
  max-width: 80vw;
  max-height: 80vh;
  height: auto;
}
.yx_BigClose {
  position: absolute;
  right: 3%;
  top: 3%;
  background: #000;
  width: 36px;
  height: 36px;
  font-size: 18px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}