增加缺省页的返回键

pages/blank/blank.vue

@@ -1,21 +1,67 @@
 <template>
   <view class="blank-page">
+    <!-- 返回按钮 -->
+    <view class="back-button" @click="goBack">
+      <text class="back-icon">←</text>
+      <text class="back-text">返回</text>
+    </view>
+    
     <text class="tip">当前特斯拉该如何布局？</text>
   </view>
 </template>
 
 <script setup>
-// 空白页，无逻辑
+// 返回到 deepMate 页面
+const goBack = () => {
+  uni.navigateTo({
+    url: '/pages/deepMate/deepMate'
+  });
+};
 </script>
 
 <style scoped>
 .blank-page {
   display: flex;
+  flex-direction: column;
   align-items: center;
   justify-content: center;
   height: 100vh;
   background-color: #ffffff;
+  position: relative;
 }
+
+.back-button {
+  position: absolute;
+  top: 60rpx;
+  left: 30rpx;
+  display: flex;
+  align-items: center;
+  padding: 20rpx 30rpx;
+  background-color: #f5f5f5;
+  border-radius: 50rpx;
+  cursor: pointer;
+  transition: all 0.3s ease;
+}
+
+.back-button:hover {
+  background-color: #e0e0e0;
+}
+
+.back-button:active {
+  transform: scale(0.95);
+}
+
+.back-icon {
+  font-size: 32rpx;
+  color: #333333;
+  margin-right: 10rpx;
+}
+
+.back-text {
+  font-size: 28rpx;
+  color: #333333;
+}
+
 .tip {
   color: #999999;
   font-size: 28rpx;