如何使用jQuery或javascript使所选单选按钮标签的文本变为粗体？

$("input[name=gender]:radio").change(function () {
	var gender = $('input[name="gender"]:checked').val();

	switch(gender){
		case "Male":
		$(":radio[value=Male]").css("font-weight", "bold");
		break;
    
		case "Female":
		$(":radio[value=Female]").css("font-weight", "bold");
		break;
	}
});

input:checked ~ span {
  font-weight: bold;
}

  

    Male
    Female