.center-btn-wrap[data-v-729a2b32] {
  width: 6.8rem;
  height: 6.8rem;
  position: fixed;
  z-index: 499;
  border-radius: 2.6rem;
  background: none;
  padding: 0.5rem;
  text-align: center;
  cursor: pointer;
}
.center-btn-wrap .center[data-v-729a2b32] {
    width: 100%;
    display: block;
    margin: auto;
}
.center-btn-wrap .down[data-v-729a2b32] {
    position: absolute;
    left: 50%;
    top: -3rem;
    -webkit-transform: translate(-50%, 0);
    transform: translate(-50%, 0);
    width: 1.4rem;
    -webkit-animation: 0.4s float-data-v-729a2b32 linear infinite alternate;
    animation: 0.4s float-data-v-729a2b32 linear infinite alternate;
}
@-webkit-keyframes float-data-v-729a2b32 {
from {
    top: -1.8rem;
}
to {
    top: -1.1rem;
}
}
@keyframes float-data-v-729a2b32 {
from {
    top: -1.8rem;
}
to {
    top: -1.1rem;
}
}