feat: fix bug

@@ -41,13 +41,13 @@
             />
             <u-button
               type="default"
-              size="mini"
               slot="right"
               :hair-line="false"
               :custom-style="{
                 color: 'var(--primary-color)',
                 border: 'none',
                 fontSize: '30rpx',
+                width: '240rpx',
               }"
               @click="getCode"
             >
@@ -234,7 +234,7 @@ export default {
     getCode() {
       const { mobile = "" } = this.form;
 
-      if (!(mobile && /^1[0-9]{10}$/.test(mobile))) {
+      if (!(mobile && /^1[3456789]\d{9}$/.test(mobile))) {
         this.$refs.uToast.show({
           message: "请填写正确手机号",
           type: "error",