修复：解决测试发现的问题

pages/book/review.vue

@@ -181,9 +181,7 @@ async function loadComments() {
   }
   
   try {
-    uni.showLoading({ title: t('global.loading') })
     const res = await bookApi.getBookComments(bookId.value, page.value.current, page.value.limit)
-    uni.hideLoading()
     
     commentsCount.value = res.commentsCount || 0
     
@@ -194,7 +192,6 @@ async function loadComments() {
       nullText.value = t('common.data_null')
     }
   } catch (error) {
-    uni.hideLoading()
     nullText.value = t('common.data_null')
     console.error('Failed to load comments:', error)
   }
@@ -472,7 +469,7 @@ function toggleEmoji() {
     }
     
     .editor {
-      border: 1rpx solid #ddd;
+      border: 1px solid #ddd;
       width: 100%;
       min-height: 200rpx;
       height: 200rpx;