/* 체크된 것 */
input[type=radio]:checked+label{
  color: tomato;
  font-weight: bold;
}
/* 활성화된 것 */
input[type=radio]:enabled+label{
  text-decoration: underline;
}
/* 비활성화된 것 */
input[type=radio]:disabled+label{
  color: lightgray;
  text-decoration: line-through;
}