.return-top {
  position: fixed;
  bottom: 8.4rem;
  right: 9.2rem;
  width: 7.585rem;
  height: 7.5rem;
  background: rgba(255, 255, 255, 1);
  border: 0.2rem solid var(--color-primary);
  border-radius: 50%;
  cursor: pointer;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0.4rem 1.2rem rgba(0, 0, 0, 0.15);
}

.return-top:hover {
  box-shadow: 0 0.6rem 1.6rem rgba(0, 0, 0, 0.2);
}

.return-top__arrow {
  position: relative;
  width: 3.2rem;
  height: 3.2rem;
  transition: transform 0.3s ease;
}

.return-top__arrow::before,
.return-top__arrow::after {
  content: "";
  position: absolute;
  background-color: var(--color-primary);
  width: 0.2rem;
  height: 2.4rem;
  top: 0.8rem;
  left: 50%;
  transform-origin: top center;
}

.return-top__arrow::before {
  transform: translateX(-50%) rotate(-45deg);
}

.return-top__arrow::after {
  transform: translateX(-50%) rotate(45deg);
}

.return-top:hover .return-top__arrow {
  transform: translateY(-0.2rem);
}

.return-top.show,
.return-top.is-visible {
  opacity: 1;
  visibility: visible;
}