diff --git a/public/themes/website/1/zh/demo/download.html b/public/themes/website/1/zh/demo/download.html
index 3fb126c..a128596 100755
--- a/public/themes/website/1/zh/demo/download.html
+++ b/public/themes/website/1/zh/demo/download.html
@@ -118,7 +118,7 @@
       </div>
       <div class="d-list">
         {hcTaglib:contentPage mainField="*" subField="*"  name="hc_content" limit="12" item="vo" sort="sort desc"}
-        {php}$dl_file = $vo['url'] ?? ($vo['thumbnail']['url'] ?? '');{/php}
+        {php}$dl_file = !empty($vo['url']) ? $vo['url'] : ($vo['thumbnail']['url'] ?? '');{/php}
         <div class="d-item">
           <a class="d-item__main" href="{$dl_file}" target="_blank" rel="noopener" title="预览">
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