input radio 样式修改

input[type="radio"] + label::before {
   content: "\a0"; /*不换行空格*/
   display: inline-block;
   vertical-align: middle;
   font-size: 12px;
   width: 1em;
   height: 1em;
   margin-right: .4em;
   border-radius: 50%;
   border: 1px solid rgba(7, 14, 89, 0.4);
   text-indent: .12em;
   line-height: 1;
}

input[type="radio"]:checked + label::before {
   background-color: #ff0000;
   background-clip: content-box;
   padding: .0em;
}


input[type="radio"] {
   position: absolute;
   clip: rect(0, 0, 0, 0);
}