.QRcode {
  width: 100px;
  height: 100px;
  position: relative;
  border-radius: 10px;
  margin-left: 0.2vw;
}

.iaCode {
  width: 100px;
  height: 100px;
  position: relative;
  border-radius: 10px;
  margin-left: 0.2vw;
}

.weixin::after {
  content: "";
  background: url(../image/erweima1.jpg);
  background-size: contain;
  width: 150px;
  height: 150px;
  border-radius: 5px;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translate(-50%, -10px);
  display: none;
  transition: all 0.5s;
}
/* .qq::after {
  content: "";
  background: url(../image/iacbe.jpg);
  background-size: contain;
  width: 150px;
  height: 150px;
  border-radius: 5px;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translate(-50%, -10px);
  display: none;
  transition: all 0.5s;
  background-color: white;
} */
.QRcode:hover::after {
  display: block;
  opacity: 0;
  animation-name: gradually;
  animation-duration: 1000ms;
  animation-fill-mode: forwards;
}
.QRcode::before {
  content: "";
  width: 0;
  height: 0;
  border: 6px solid transparent;
  border-top-color: white;
  position: absolute;
  top: -10px;
  left: calc(50% - 6px);
  display: none;
  transition: all 0.5s;
}
.QRcode:hover::before {
  display: block;
  opacity: 0;
  animation-name: gradually;
  animation-duration: 1000ms;
  animation-fill-mode: forwards;
}
@keyframes gradually {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
.footer-list {
  list-style: none;
  text-align: center;
}
.text-space {
  white-space: nowrap;
}
.text-space {
  white-space: nowrap;
}