body {
  position: relative;
  display: inline-block;
  //----------hide for pc
  height: calc(100vh - 48px);
  top: 48px;

  //----------show for mobile
  // height: calc(100vh - 0px );
  // top: 0px;

  width: calc(100% - 0px);
  //margin-left: 72px;

  overflow: hidden;
  background-color: $c-surface;
  z-index: 1;
  opacity: 1;

  // border: 0.1px solid $c-error;               //←←←←←←←←←←←←←←←←←←←←

  //border:  0.5px solid purple;               //←←←←←←←←←←←←←←←←←←←←
}