#content .app_list {
  display: grid;
  grid-template-columns: repeat(4, minmax(100px, 1fr));
  grid-gap: 16px;
  margin-bottom: 24px;
}
#content .app_list .app_item {
  position: relative;
  border-radius: 8px 8px 8px 8px;
}
#content .app_list .app_item .app_bg {
  width: 100%;
  height: 150px;
}
#content .app_list .app_item .coverlink {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
}
#content .app_list .app_item .item_box {
  border-radius: 8px 8px 8px 8px;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 12px 12px 12px 12px;
  overflow: hidden;
}
#content .app_list .app_item .item_box .app_logo {
  width: 48px;
  height: 48px;
  border-radius: 12px 12px 12px 12px;
  margin-bottom: 12px;
}
#content .app_list .app_item .item_box h3 {
  text-align: center;
  font-family: b;
  font-weight: 600;
  font-size: 18px;
  color: #FFFFFF;
  margin-bottom: 10px;
}
#content .app_list .app_item .item_box img {
  width: 40px;
  height: 22px;
}
#content .app_list .app_item .item_box .app_r_lan {
  display: none;
}
#content .app_list .app_item:hover .item_box .app_r_lan {
  display: block;
}
#content .app_list .app_item:hover .item_box .app_r_hei {
  display: none;
}