fix: 使用 inline onclick 方式关闭模态框，更可靠

web/static/index.html

@@ -156,8 +156,8 @@
         </div>
 
         <!-- 图片详情模态框 -->
-        <div class="modal" id="image-modal">
-            <div class="modal-content">
+        <div class="modal" id="image-modal" onclick="closeModalOnBackground(event, 'image-modal')">
+            <div class="modal-content" onclick="event.stopPropagation()">
                 <span class="modal-close" onclick="closeImageModal()">×</span>
                 <img id="modal-image" src="" alt="图片详情">
                 <div class="modal-info">
@@ -177,4 +177,4 @@
 
     <script src="/static/app.js"></script>
 </body>
-</html>
+</html>ml>