.right-center {
  position: fixed;
  top: 50vh;
  transform: translateY(-50%);
  right: 0;
  z-index: 1001;
  width: 84px;
  height: 280px;
  background: var(--primary-bg-color);
  border-radius: 10px;
}
.right-center > div {
  height: 70px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.right-center > div + div {
  border-top: 1px solid var(--primary-color);
}
.right-center > div:last-child {
  border-radius: 0 0 10px 10px;
}
.right-center > div:first-child {
  border-radius: 10px 10px 0 0;
}
.right-center > div .sel {
  display: none;
}
.right-center > div .tip {
  color: #333333;
  margin-top: 10px;
}
.right-center > div:hover {
  background: var(--primary-color);
}
.right-center > div:hover .sel {
  display: inherit;
}
.right-center > div:hover .normal {
  display: none;
}
.right-center > div:hover .tip {
  color: #ffffff;
}
.right-center .follow-us {
  position: relative;
}
.right-center .follow-us .follow-us-pop-up {
  display: none;
  position: absolute;
  left: -194px;
  width: 180px;
  height: 220px;
  background: #ffffff;
  box-shadow: 0px 0px 8px 0px rgba(33, 41, 50, 0.08);
  border-radius: 10px;
  padding: 12px;
  
  text-align: center;
  font-weight: 400;
  font-size: 12px;
  color: #333333;
}
.right-center .follow-us .follow-us-pop-up::after {
  position: absolute;
  content: ' ';
  border: 10px solid #fff;
  transform: rotate(45deg);
  top: 50%;
  right: -10px;
}
.right-center .follow-us .follow-us-pop-up > div + div {
  margin-top: 10px;
}
.right-center .follow-us .follow-us-pop-up .follow-us-pop-up-top {
  font-weight: 500;
  font-size: 16px;
  display: flex;
  align-items: center;
}
.right-center .follow-us .follow-us-pop-up .follow-us-pop-up-top span {
  margin-left: 10px;
}
.right-center .follow-us:hover .follow-us-pop-up {
  display: block;
}