How to achieve custom radio style change color

Let’s look at the effect picture first: the radio is selected by default in blue, how to achieve red...

html code:

<div class="sigupC-t">
    <label class="bui-radios-label bui-radios-anim">
        <input type="radio" checked name="all" value="1" /><i class="bui-radios"></i>
        <div>全部</div>
    </label>
    <label class="bui-radios-label bui-radios-anim lable-right">
        <input type="radio" name="all" value="2" /><i class="bui-radios"></i>
        <div>可报名</div>
    </label>
    <label class="bui-radios-label bui-radios-anim lable-right">
        <input type="radio" name="all" value="3" /><i class="bui-radios"></i>
        <div>不可报名</div>
    </label>
</div>

CSS code:

label{
    
    
      display: flex;
      justify-content: flex-start;
      align-items: center;
      cursor: pointer;
      margin-right: 12px;
  }
  div{
    
    
      font-size: 11px;
      color: #666E79;
      margin-left: 6px;
 }
/*隐藏input*/

label.bui-radios-label input[type="radio"] {
    
    
    width: 100px;
    position: absolute;
    opacity: 0;
    visibility: hidden;
    -webkit-appearance: none;
}


/*自定义radio*/

label.bui-radios-label .bui-radios {
    
    
    display: inline-block;
    position: relative;
    width: 10px;
    height: 10px;
    background-color: #fff;
    border: 1px solid #979797;
    border-radius: 50%;
    vertical-align: -0.267vw;
}


/*单选框选中后，自定义radio的样式*/

label.bui-radios-label input[type="radio"]:checked+.bui-radios:after {
    
    
    position: absolute;
    content: "";
    width: 6px;
    height: 6px;
    background-color: #B4222D;
    border-radius: 50%;
    top: 2px;
    left: 2px;
}

label.bui-radios-label input[type="radio"]:checked+.bui-radios {
    
    
    background-color: #fff;
    border: 1px solid #B4222D;
}

label.bui-radios-label input[type="radio"]:disabled:checked+.bui-radios:after {
    
    
    background-color: #c1c1c1;
}


/*自定义radio的过渡效果*/

label.bui-radios-label.bui-radios-anim .bui-radios {
    
    
    -webkit-transition: background-color ease-out 0.5s;
    transition: background-color ease-out 0.5s;
}

js listens to which one is selected

Remember to introduce jquery first

 $("input[type=radio]").change(function(){
    
    
     console.log( $(this).val());
})