fix

@@ -191,9 +191,9 @@ export default {
             .bg-gradient {
               background: linear-gradient(@base-color, @base-color) no-repeat;
               /*调整下划线的宽度占百分之百  高度是3px */
-              background-size: 100% 3px;
+              background-size: 100% 4px;
               /* 调整下划线的起始位置 左侧是0 上边是1.15em */
-              background-position: 0 1.15em;
+              background-position: 0 1.1em;
             }
             .number {
               display: block; 

@@ -19,7 +19,7 @@
             @touchstart.stop="showKeyboard" />
           <van-field v-else v-model="phone" name="phone" label="手机号" placeholder="手机号"
             :rules="[{ validator, message: '请输入正确手机号' }]" />
-          <van-field v-model="code" center clearable name="code" label="短信验证码" placeholder="请输入短信验证码"
+          <van-field v-model="code" center clearable name="code" type="digit" label="短信验证码" placeholder="请输入短信验证码"
             :formatter="formatter" :rules="[{ required: true, message: '请填写验证码' }]">
             <template #button>
               <van-button @click="sendCode" v-if="countDown.current.value.total === limit" size="small" type="primary" :disabled="disabled">