.main_b7 .main_b7_row.count1 .main_b7_item {
  width: 100%;
  aspect-ratio: 16/9;
}

.main_b7_row.count1 .main_b7_item_img {
  padding: 0;
  height: 100%;
}

.main_b7_row.count1 .main_b7_item img {
  position: unset;
  width: 100%;
  height: 100%;
}

@media screen and (max-width: 1600px) {
  .lsg_3d_tour .main_b_item_left {
    display: none;
  }
}

@media screen and (max-width: 699px) {
  .lsg_3d_tour .main_b7_item_img {
    padding: calc(100% * 9 / 13.47) 0 0;
  }
}