diff --git a/src/zotero_kb/templates/index.html b/src/zotero_kb/templates/index.html
index 4ac0629..863f321 100644
--- a/src/zotero_kb/templates/index.html
+++ b/src/zotero_kb/templates/index.html
@@ -337,46 +337,47 @@
           <button id="open-import-modal-button" type="button">导入文献</button>
         </div>
 
-        <div id="import-window-shell" class="window-shell" hidden aria-hidden="true">
-  <section id="import-window" class="window-frame" role="dialog" aria-modal="true" aria-labelledby="import-window-title">
-    <div class="window-toolbar" id="import-window-toolbar">
-      <div style="display:flex;align-items:center;gap:0.6rem">
-        <span style="font-size:1.2rem;line-height:1">☰</span>
-        <div>
-          <h3 id="import-window-title">Import From Zotero</h3>
-          <p id="import-window-project-label" class="meta">未选择项目</p>
-        </div>
-      </div>
-      <div class="window-toolbar-actions">
-        <div id="window-selected-count" class="meta">已选 0 篇</div>
-        <button id="window-clear-selection-button" type="button" class="danger">清空选择</button>
-        <button id="window-import-selected-items-button" type="button">导入所选</button>
-        <button id="window-minimize-button" type="button" class="secondary" title="最小化" style="width:auto;padding:0.55rem 0.75rem">_</button>
-        <button id="window-maximize-button" type="button" class="secondary" title="最大化" style="width:auto;padding:0.55rem 0.75rem">□</button>
-        <button id="window-close-button" type="button" class="secondary" title="关闭" style="width:auto;padding:0.55rem 0.75rem">×</button>
-      </div>
-    </div>
-    <div class="window-body">
-      <div class="window-pane collections">
-        <small>Collections</small>
-        <div id="window-collection-status" class="status"></div>
-        <div id="window-collection-tree" class="window-scroll tree-list"></div>
-      </div>
-      <div class="window-pane items">
-        <small>Collection Items</small>
-        <div id="window-collection-items" class="window-scroll collection-items-list"></div>
-      </div>
-    </div>
-    <div id="item-preview-popover" class="preview-popover" hidden></div>
-  </section>
-</div>
-
-<div id="import-window-minimized-bar" class="window-minimized-bar" hidden>
-  <span style="flex:1;text-align:left">导入文献</span>
-  <button id="window-restore-button" type="button" class="secondary" style="width:auto;padding:0.3rem 0.5rem;font-size:0.8rem">□</button>
-</div>
       </section>
 
+      <div id="import-window-shell" class="window-shell" hidden aria-hidden="true">
+        <section id="import-window" class="window-frame" role="dialog" aria-modal="true" aria-labelledby="import-window-title">
+          <div class="window-toolbar" id="import-window-toolbar">
+            <div style="display:flex;align-items:center;gap:0.6rem">
+              <span style="font-size:1.2rem;line-height:1">☰</span>
+              <div>
+                <h3 id="import-window-title">Import From Zotero</h3>
+                <p id="import-window-project-label" class="meta">未选择项目</p>
+              </div>
+            </div>
+            <div class="window-toolbar-actions">
+              <div id="window-selected-count" class="meta">已选 0 篇</div>
+              <button id="window-clear-selection-button" type="button" class="danger">清空选择</button>
+              <button id="window-import-selected-items-button" type="button">导入所选</button>
+              <button id="window-minimize-button" type="button" class="secondary" title="最小化" style="width:auto;padding:0.55rem 0.75rem">_</button>
+              <button id="window-maximize-button" type="button" class="secondary" title="最大化" style="width:auto;padding:0.55rem 0.75rem">□</button>
+              <button id="window-close-button" type="button" class="secondary" title="关闭" style="width:auto;padding:0.55rem 0.75rem">×</button>
+            </div>
+          </div>
+          <div class="window-body">
+            <div class="window-pane collections">
+              <small>Collections</small>
+              <div id="window-collection-status" class="status"></div>
+              <div id="window-collection-tree" class="window-scroll tree-list"></div>
+            </div>
+            <div class="window-pane items">
+              <small>Collection Items</small>
+              <div id="window-collection-items" class="window-scroll collection-items-list"></div>
+            </div>
+          </div>
+          <div id="item-preview-popover" class="preview-popover" hidden></div>
+        </section>
+      </div>
+
+      <div id="import-window-minimized-bar" class="window-minimized-bar" hidden>
+        <span style="flex:1;text-align:left">导入文献</span>
+        <button id="window-restore-button" type="button" class="secondary" style="width:auto;padding:0.3rem 0.5rem;font-size:0.8rem">□</button>
+      </div>
+
       <section class="panel">
         <div class="row" style="justify-content: space-between">
           <div>