.checkbox input[type=checkbox], .checkbox-inline input[type=checkbox], .radio input[type=radio], .radio-inline input[type=radio] {

    left:-9999px;

}

 .k-form {

     .k-form .checkbox, .k-form .radio {

         line-height: 25px;

         color: #0c4757;

         cursor: pointer;

         font-size: 13px;

     }

     k-form .radio {

         font-weight:;

     }

     k-checkbox i, .k-radio i {

     position: absolute;

     top: 9px;

     left:;

     display: block;

     width: 14px;

     height: 14px;

     outline:;

     border:1px solid $panel-primary-heading-bg-color;

 }

     .k-radio i {

         border-color: $form-radio-checkbox-checked-color;

         transition: border-color .3s;

         -webkit-transition: border-color .3s;

         border-radius: 50%;

     }

     .k-checkbox input + i:after, .k-radio input + i:after {

        background-color: $form-radio-checkbox-checked-color;

         position: absolute;

         content: '';

         width: 6px;

         height:6px;

         top:50%;

         left:50%;

         margin-top:-3px;

         margin-left:-3px;

         background-color: $form-radio-checkbox-checked-color;

         border-radius: 50%;

         transition: opacity .1s;

         -webkit-transition: opacity .1s;

         transition: opacity .1s;

         -webkit-transition: opacity .1s;

        opacity:;

         filter:alpha(opacity=0);

     }

     .k-checkbox input:checked + i:after, .k-radio input:checked + i:after {

         opacity:;

         filter:alpha(opacity=1);

     }

}

<form class="form-horizontal k-form">

            <!--<div class="panel {{show.panelClass}}">-->

                <div ng-class="{true:'panel panel-info divOfModule',false:'panel panel-primary divOfModule'}[showPanelClass]">

                <div class="panel-heading"> 基本信息 </div>

                <div class="panel-body">

                    <div class="container-fluid">

                        <div class="row">

                            <div class="form-group">

                                <label class="col-sm-1 control-label">用车性质</label>

                                <div class="col-sm-2">

                                    <label class="radio-inline k-radio">

                                        <input type="radio" name="inlineRadioOptions"  ng-model="billModel.carType" value="1"   ng-checked="billModel.carType==1" ng-click="changeType()"> 公司车

                                        <i></i>

                                    </label>

                                    <label class="radio-inline k-radio">

                                        <input type="radio" name="inlineRadioOptions"   ng-model="billModel.carType" value="2" ng-checked="billModel.carType==2" ng-click="changeType()"> 外请车

                                        <i></i>

                                    </label>