.radio_inner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid #cd474d;
  border-radius: 50%;
  vertical-align: bottom;
  cursor: pointer;
  text-align: center;
  line-height: 0;
  padding: 2px 0 0 0;
  transition: all 0.3s ease;
}
.radio_inner span {
  display: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.radio_inner.radio_checked {
  border-color: #cd474d;
}
.radio_inner.radio_checked span {
  display: inline-block;
  background: #cd474d;
}