.float-right-wrap {
  /* 需修改为none */
  display: none;
  position: fixed;
  left: 50%;
  bottom: 30%;
  text-align: center;
  z-index: 99;
  margin-left: 620px;
  cursor: pointer;
  user-select: none;
  box-shadow: 0px 0px 4px 0px rgba(0, 0, 0, 0.06);
  border-radius: 4px;
  background-color: #ffffff;
  box-sizing: border-box;
}
@media screen and (max-width: 1500px) {
  .float-right-wrap {
    right: 20px;
    left: auto;
    margin-left: 0;
    bottom: 100px;
  }
}
@media screen and (max-width: 1200px) {
  .float-right-wrap {
    right: 20px;
    left: auto;
    margin-left: 0;
    bottom: 70px;
  }
}
.float-right-item {
  display: block;
  width: 60px;
  height: 82px;
  position: relative;
  text-decoration: none;
  padding: 10px 18px;
  box-sizing: border-box;
}
.float-hover-icon {
  width: 24px;
  height: 24px;
  color: #343434;
}
.float-hover-name {
  margin-top: 6px;
  width: 24px;
  padding-bottom: 10px;
  font-size: 12px;
  line-height: 16px;
  font-weight: 500;
  color: #666666;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  box-sizing: border-box;
}
.float-right-item:nth-last-child(2) .float-hover-name {
  border-bottom: none;
}
.float-right-item:hover,
.float-right-item:hover .float-hover-icon,
.float-right-item:hover .float-hover-name {
  color: #ffffff;
  background-color: #ff4c00;
  border-bottom: none;
}

.back-to-top {
  position: absolute;
  bottom: -64px;
  left: 0;
  width: 60px;
  height: 60px;
  box-shadow: 0px 0px 4px 0px rgba(0, 0, 0, 0.06);
  border-radius: 4px;
  padding: 8px 18px;
  background: #fff;
  box-sizing: border-box;
}

.back-to-top .float-hover-icon {
  width: 24px;
  height: 24px;
  color: #343434;
}
.float-right-item.back-to-top .float-hover-name {
  margin-top: 2px;
  border-bottom: none;
}
.back-to-top:active {
  transform: translate(1px, 1px);
}
.app-download {
  position: relative;
}
.app-download:hover .app-download-hover {
  display: block;
}
.app-download-hover {
  display: none;
  position: absolute;
  width: 200px;
  height: 228px;
  right: 70px;
  top: 0;
  bottom: 0;
  margin: auto;
  padding: 20px;
  background: #fff;
  box-shadow: 0px 0px 4px 0px rgba(0, 0, 0, 0.06);
  border-radius: 8px;
  box-sizing: border-box;
}
.app-download-hover img {
  width: 160px;
  height: 160px;
  background: #d4d4d4;
  border-radius: 4px;
}
.app-download-hover .tip {
  margin-top: 10px;
  font-size: 14px;
  color: #565656;
  text-align: center;
  line-height: 18px;
}