.nav_right {
  width: 90px;
  position: fixed;
  bottom: 5.25vw;
  right: 5.93vw;
  z-index: 10;
  display: block;
}
@media screen and (max-width: 1300px) {
  .nav_right {
    bottom: 20px;
    right: 5px;
  }
}
.nav_right ul li {
  width: 90px;
  height: 90px;
  line-height: 90px;
  border-radius: 50%;
  background-color: #007DD2;
  margin-bottom: 38px;
  position: relative;
  cursor: pointer;
}
.nav_right ul li > img {
  display: block;
  position: absolute;
  width: 30px;
  height: 30px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.nav_right ul li a {
  text-align: center;
  display: none;
  font-size: 17px;
  font-family: 'Noto Sans SC';
  font-weight: 400;
  color: #ffffff;
}
.nav_right ul li:nth-of-type(2):hover .wechat {
  display: block;
}
.nav_right ul li .wechat {
  position: absolute;
  left: -160px;
  top: -40px;
  background: url("https://test9018.oss-cn-hangzhou.aliyuncs.com/0001/wechat_bg.png") no-repeat;
  background-size: contain;
  width: 157px;
  height: 173px;
  display: none;
  z-index: 1;
}
.nav_right ul li .wechat > img {
  position: absolute;
  width: 108px;
  height: 108px;
  top: 44%;
  left: 45%;
  transform: translate(-50%, -50%);
  z-index: 2;
}
.nav_right ul li .wechat > p {
  font-size: 18px;
  font-family: 'Noto Sans SC';
  font-weight: 500;
  color: #333;
  text-align: center;
  margin-top: 97px;
  margin-right: 15px;
}
.nav_right ul li:hover > img {
  display: none;
}
.nav_right ul li:hover a {
  display: block;
}