#wechat-share-modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  z-index: 9999;
  justify-content: center;
  align-items: center;
}
#wechat-share-modal .modal-content {
  background: white;
  padding: 20px;
  border-radius: 8px;
  text-align: center;
  max-width: 300px;
  width: 90%;
}