feat: 修复wiki样式问题

pages/wiki/index.wxml

@@ -1,7 +1,13 @@
 <!--pages/wiki/index.wxml-->
 <view class="wiki-page">
 
-  <view class="wiki-scroll-area">
+  <scroll-view 
+    class="wiki-scroll-area" 
+    scroll-y 
+    bindscrolltolower="onReachBottom"
+    enhanced
+    show-scrollbar="{{false}}"
+  >
     <view class="search-section">
         <t-search placeholder="搜索植物名称，如：龟背竹" value="{{searchQuery}}" bind:change="onSearchInput" shape="round" />
     </view>
@@ -25,22 +31,45 @@
     <view class="wiki-list">
        <view wx:for="{{displayedList}}" wx:key="id" class="wiki-card" bindtap="goToDetail" data-item="{{item}}">
           <view class="wiki-image">
-             <t-image src="/assets/{{item.images[0]}}" mode="aspectFill" width="100%" height="100%" />
+             <t-image src="/assets/{{item.images[0]}}" mode="aspectFill" width="100%" height="100%" lazy />
           </view>
           <view class="wiki-info">
              <view class="wiki-top">
                 <text class="wiki-name">{{item.name}}</text>
                 <text class="scientific-name">{{item.scientificName}}</text>
              </view>
-             <t-tag size="small" variant="light" theme="success">{{item.category}}</t-tag>
+             
+             <!-- Tags Row -->
+             <view class="tags-row">
+                <t-tag 
+                    wx:for="{{item.tags}}" 
+                    wx:key="*this" 
+                    wx:for-item="tag"
+                    size="small" 
+                    variant="light" 
+                    theme="primary"
+                    style="margin-right: 8rpx; margin-bottom: 8rpx;"
+                >
+                    {{tag}}
+                </t-tag>
+             </view>
           </view>
           <t-icon name="chevron-right" size="48rpx" color="#ccc" />
        </view>
     </view>
     
+    <!-- Loading / No More Data Footer -->
+    <view class="loading-footer">
+        <t-loading wx:if="{{isLoading}}" theme="circular" size="40rpx" text="加载中..." inherit-color />
+        <text wx:elif="{{!hasMore && displayedList.length > 0}}" class="no-more-text">没有更多了</text>
+        <view wx:elif="{{!hasMore && displayedList.length === 0}}" class="empty-state">
+            <text>没有找到相关植物</text>
+        </view>
+    </view>
+
     <!-- Spacer -->
      <view style="height: 160rpx;"></view>
-  </view>
+  </scroll-view>
 
   <t-fab icon="scan" text="植物识别" bind:click="openIdentifyModal" aria-label="植物识别"></t-fab>