.qizhi-watermark {
  position: fixed;
  right: calc(18px + env(safe-area-inset-right, 0px));
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  display: block;
  width: 96px;
  height: 96px;
  object-fit: contain;
  z-index: 10;
  opacity: .92;
  filter: drop-shadow(0 3px 7px rgba(0, 0, 0, .28));
  pointer-events: none;
  user-select: none;
}

@media (max-width: 600px) {
  .qizhi-watermark {
    right: calc(12px + env(safe-area-inset-right, 0px));
    bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    width: 72px;
    height: 72px;
  }
}

@media print {
  .qizhi-watermark {
    display: none !important;
  }
}