.legacy-site-switch {
  position: fixed;
  z-index: 9999;
  top: 12px;
  right: 12px;
  display: inline-block;
  padding: 8px 13px;
  border: 1px solid #8b2742;
  border-radius: 999px;
  color: #fff !important;
  background: #8b2742;
  box-shadow: 0 4px 14px rgb(0 0 0 / 18%);
  font-family: Arial, "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none !important;
}

.legacy-site-switch[hidden] {
  display: none;
}

.legacy-site-switch:hover,
.legacy-site-switch:focus {
  color: #fff !important;
  background: #6f1e34;
}