diff --git a/app/components/ConfirmModal.jsx b/app/components/ConfirmModal.jsx
index ea32584..e933659 100644
--- a/app/components/ConfirmModal.jsx
+++ b/app/components/ConfirmModal.jsx
@@ -1,10 +1,11 @@
 'use client';
 
 import { motion } from 'framer-motion';
+import { createPortal } from 'react-dom';
 import { TrashIcon } from './Icons';
 
 export default function ConfirmModal({ title, message, onConfirm, onCancel, confirmText = "确定删除" }) {
-  return (
+  const content = (
     <motion.div
       className="modal-overlay"
       role="dialog"
@@ -40,4 +41,6 @@ export default function ConfirmModal({ title, message, onConfirm, onCancel, conf
       </motion.div>
     </motion.div>
   );
+  if (typeof document === 'undefined') return null;
+  return createPortal(content, document.body);
 }
diff --git a/app/components/Icons.jsx b/app/components/Icons.jsx
index 7f8f5bb..5497f26 100644
--- a/app/components/Icons.jsx
+++ b/app/components/Icons.jsx
@@ -77,6 +77,13 @@ export function RefreshIcon(props) {
   );
 }
 
+export function ResetIcon(props) {
+  return (
+    <svg t="1772152323013" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="4796" width="16" height="16"><path fill="currentColor" d="M864 512a352 352 0 0 0-600.96-248.96c-15.744 15.872-40.704 42.88-63.232 67.648H320a32 32 0 1 1 0 64H128a31.872 31.872 0 0 1-32-32v-192a32 32 0 1 1 64 0v108.672c20.544-22.528 42.688-46.4 57.856-61.504a416 416 0 1 1 0 588.288 32 32 0 1 1 45.248-45.248A352 352 0 0 0 864 512z" p-id="4797"></path>
+    </svg>
+  );
+}
+
 export function ChevronIcon(props) {
   return (
     <svg {...props} xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none">
diff --git a/app/components/PcFundTable.jsx b/app/components/PcFundTable.jsx
index 1d0ca6f..d32ee1c 100644
--- a/app/components/PcFundTable.jsx
+++ b/app/components/PcFundTable.jsx
@@ -7,7 +7,8 @@ import {
   getCoreRowModel,
   useReactTable,
 } from '@tanstack/react-table';
-import { ExitIcon, SettingsIcon, StarIcon, TrashIcon } from './Icons';
+import ConfirmModal from './ConfirmModal';
+import { ExitIcon, ResetIcon, SettingsIcon, StarIcon, TrashIcon } from './Icons';
 
 /**
  * PC 端基金列表表格组件（基于 @tanstack/react-table）
@@ -82,6 +83,12 @@ export default function PcFundTable({
     }
     return stored;
   });
+  const [resetConfirmOpen, setResetConfirmOpen] = useState(false);
+  const handleResetSizing = () => {
+    setColumnSizing({});
+    persistColumnSizing({});
+    setResetConfirmOpen(false);
+  };
   const onRemoveFundRef = useRef(onRemoveFund);
   const onToggleFavoriteRef = useRef(onToggleFavorite);
   const onRemoveFromGroupRef = useRef(onRemoveFromGroup);
@@ -330,7 +337,22 @@ export default function PcFundTable({
       },
       {
         id: 'actions',
-        header: '操作',
+        header: () => (
+          <div style={{ display: 'inline-flex', alignItems: 'center', gap: 6 }}>
+            <span>操作</span>
+            <button
+              className="icon-button"
+              onClick={(e) => {
+                e.stopPropagation?.();
+                setResetConfirmOpen(true);
+              }}
+              title="重置列宽"
+              style={{ border: 'none', width: '24px', height: '24px', backgroundColor: 'transparent', color: 'var(--text)' }}
+            >
+              <ResetIcon width="14" height="14"  />
+            </button>
+          </div>
+        ),
         size: 80,
         minSize: 80,
         maxSize: 80,
@@ -598,6 +620,15 @@ export default function PcFundTable({
           </div>
         </div>
       )}
+      {resetConfirmOpen && (
+        <ConfirmModal
+          title="重置列宽"
+          message="是否重置表格列宽为默认值？"
+          onConfirm={handleResetSizing}
+          onCancel={() => setResetConfirmOpen(false)}
+          confirmText="重置"
+        />
+      )}
     </>
   );
 }