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node_modules/vant/es/radio/index.css

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+.van-radio{display:-webkit-box;display:-webkit-flex;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center;overflow:hidden;cursor:pointer;-webkit-user-select:none;user-select:none}.van-radio--disabled{cursor:not-allowed}.van-radio--label-disabled{cursor:default}.van-radio--horizontal{margin-right:12px}.van-radio__icon{-webkit-box-flex:0;-webkit-flex:none;flex:none;height:1em;font-size:20px;line-height:1em;cursor:pointer}.van-radio__icon .van-icon{display:block;box-sizing:border-box;width:1.25em;height:1.25em;color:transparent;font-size:.8em;line-height:1.25;text-align:center;border:1px solid #c8c9cc;-webkit-transition-duration:.2s;transition-duration:.2s;-webkit-transition-property:color,border-color,background-color;transition-property:color,border-color,background-color}.van-radio__icon--round .van-icon{border-radius:100%}.van-radio__icon--checked .van-icon{color:#fff;background-color:#1989fa;border-color:#1989fa}.van-radio__icon--disabled{cursor:not-allowed}.van-radio__icon--disabled .van-icon{background-color:#ebedf0;border-color:#c8c9cc}.van-radio__icon--disabled.van-radio__icon--checked .van-icon{color:#c8c9cc}.van-radio__label{margin-left:8px;color:#323233;line-height:20px}.van-radio__label--left{margin:0 8px 0 0}.van-radio__label--disabled{color:#c8c9cc}

node_modules/vant/es/radio/index.js

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+import { createNamespace } from '../utils';
+import { CheckboxMixin } from '../mixins/checkbox';
+
+var _createNamespace = createNamespace('radio'),
+    createComponent = _createNamespace[0],
+    bem = _createNamespace[1];
+
+export default createComponent({
+  mixins: [CheckboxMixin({
+    bem: bem,
+    role: 'radio',
+    parent: 'vanRadio'
+  })],
+  computed: {
+    currentValue: {
+      get: function get() {
+        return this.parent ? this.parent.value : this.value;
+      },
+      set: function set(val) {
+        (this.parent || this).$emit('input', val);
+      }
+    },
+    checked: function checked() {
+      return this.currentValue === this.name;
+    }
+  },
+  methods: {
+    toggle: function toggle() {
+      this.currentValue = this.name;
+    }
+  }
+});

node_modules/vant/es/radio/index.less

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+@import '../style/var';
+
+.van-radio {
+  display: flex;
+  align-items: center;
+  overflow: hidden;
+  cursor: pointer;
+  user-select: none;
+
+  &--disabled {
+    cursor: not-allowed;
+  }
+
+  &--label-disabled {
+    cursor: default;
+  }
+
+  &--horizontal {
+    margin-right: @padding-sm;
+  }
+
+  &__icon {
+    flex: none;
+    height: 1em;
+    font-size: @radio-size;
+    line-height: 1em;
+    cursor: pointer;
+
+    .van-icon {
+      display: block;
+      box-sizing: border-box;
+      width: 1.25em;
+      height: 1.25em;
+      color: transparent;
+      font-size: 0.8em;
+      line-height: 1.25;
+      text-align: center;
+      border: 1px solid @radio-border-color;
+      transition-duration: @radio-transition-duration;
+      transition-property: color, border-color, background-color;
+    }
+
+    &--round {
+      .van-icon {
+        border-radius: 100%;
+      }
+    }
+
+    &--checked {
+      .van-icon {
+        color: @white;
+        background-color: @radio-checked-icon-color;
+        border-color: @radio-checked-icon-color;
+      }
+    }
+
+    &--disabled {
+      cursor: not-allowed;
+
+      .van-icon {
+        background-color: @radio-disabled-background-color;
+        border-color: @radio-disabled-icon-color;
+      }
+    }
+
+    &--disabled&--checked {
+      .van-icon {
+        color: @radio-disabled-icon-color;
+      }
+    }
+  }
+
+  &__label {
+    margin-left: @radio-label-margin;
+    color: @radio-label-color;
+    line-height: @radio-size;
+
+    &--left {
+      margin: 0 @radio-label-margin 0 0;
+    }
+
+    &--disabled {
+      color: @radio-disabled-label-color;
+    }
+  }
+}

node_modules/vant/es/radio/style/index.js

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+import '../../style/base.css';
+import '../../info/index.css';
+import '../../icon/index.css';
+import '../index.css';

node_modules/vant/es/radio/style/less.js

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+import '../../style/base.less';
+import '../../info/index.less';
+import '../../icon/index.less';
+import '../index.less';