ant-design/style/components/radio.less

@radioWrapPrefixCls: ant-radio;
@radioInnerPrefixCls: ~"@{radioWrapPrefixCls}-inner";
@radioDuration: .3s;

/* 一般状态 */
.@{radioWrapPrefixCls} {
  white-space: nowrap;
  outline: none;
  display: inline-block;
  position: relative;
  line-height: 1;
  vertical-align: middle;
  &:hover {
    .@{radioInnerPrefixCls} {
      border-color: #bcbcbc;
    }
  }
  &-inner {
    &:after {
      position: absolute;
      width: 6px;
      height: 6px;
      left: 3px;
      top:3px;
      border-radius: 6px;
      display: table;
      border-top: 0;
      border-left: 0;
      content: ' ';
      background-color: @primary-color;
      transform: scale(0);
      opacity: 0;
      transition: transform @radioDuration @ease-in-out-circ,opacity @radioDuration @ease-in-out-circ,background-color @radioDuration @ease-in-out-circ;
    }

    position: relative;
    top: 0;
    left: 0;
    display: inline-block;
    width: 14px;
    height: 14px;
    border-width: 1px;
    border-style: solid;
    border-radius: 14px;
    border-color: #d9d9d9;
    background-color: #ffffff;
    transition: border-color @radioDuration @ease-in-out-circ, background-color @radioDuration @ease-in-out-circ;
  }

  &-input {
    position: absolute;
    left: 0;
    z-index: 9999;
    cursor: pointer;
    opacity: 0;
    top: 0;
    bottom: 0;
    right: 0;
  }
}

/* 选中状态 */
.@{radioWrapPrefixCls}-checked {

  .@{radioInnerPrefixCls} {
    border-color: #d9d9d9;
    &:after {
      transform: scale(1);
      opacity: 1;
      transition: transform @radioDuration @ease-out-back,opacity @radioDuration @ease-in-out-circ,background-color @radioDuration @ease-in-out-circ;
    }
  }
}

.@{radioWrapPrefixCls}-disabled {
  &:hover {
    .@{radioInnerPrefixCls} {
      border-color: #d9d9d9;
    }
  }
  .@{radioInnerPrefixCls} {
    border-color: #d9d9d9;
    background-color: #f3f3f3;
    &:after {
      background-color: #cccccc;
    }
  }

  .@{radioInnerPrefixCls}-input {
    cursor: default;
  }
}

.@{radioWrapPrefixCls} + span {
  margin-left: 8px;
}