diff --git a/src/main/java/com/biutag/supervision/service/ModifiedVerifyContentCellWriteHandler.java b/src/main/java/com/biutag/supervision/service/ModifiedVerifyContentCellWriteHandler.java
index cb58d04..9d974e7 100644
--- a/src/main/java/com/biutag/supervision/service/ModifiedVerifyContentCellWriteHandler.java
+++ b/src/main/java/com/biutag/supervision/service/ModifiedVerifyContentCellWriteHandler.java
@@ -9,6 +9,8 @@ import org.apache.poi.ss.usermodel.Font;
 import org.apache.poi.ss.usermodel.IndexedColors;
 import org.apache.poi.ss.usermodel.RichTextString;
 import org.apache.poi.ss.usermodel.Workbook;
+import org.apache.poi.xssf.usermodel.XSSFColor;
+import org.apache.poi.xssf.usermodel.XSSFFont;
 
 public class ModifiedVerifyContentCellWriteHandler implements CellWriteHandler {
 
@@ -35,11 +37,11 @@ public class ModifiedVerifyContentCellWriteHandler implements CellWriteHandler {
         String[] lines = content.split("\\n", -1);
         int offset = 0;
         for (String line : lines) {
-            int separatorIndex = line.indexOf('：');
+            int separatorIndex = line.indexOf('\uFF1A');
             if (separatorIndex > 0) {
                 richText.applyFont(offset, offset + separatorIndex, getLabelFont(workbook));
             }
-            int arrowIndex = line.indexOf('→', separatorIndex + 1);
+            int arrowIndex = line.indexOf('\u2192', separatorIndex + 1);
             if (arrowIndex >= 0) {
                 richText.applyFont(offset + arrowIndex, offset + arrowIndex + 1, getArrowFont(workbook));
             }
@@ -63,7 +65,11 @@ public class ModifiedVerifyContentCellWriteHandler implements CellWriteHandler {
         if (arrowFont == null) {
             arrowFont = workbook.createFont();
             arrowFont.setBold(true);
-            arrowFont.setColor(IndexedColors.RED.getIndex());
+            if (arrowFont instanceof XSSFFont xssfFont) {
+                xssfFont.setColor(new XSSFColor(new byte[]{(byte) 255, 0, 0}, null));
+            } else {
+                arrowFont.setColor(IndexedColors.RED.getIndex());
+            }
         }
         return arrowFont;
     }
diff --git a/src/main/java/com/biutag/supervision/service/NegativeReturnExportService.java b/src/main/java/com/biutag/supervision/service/NegativeReturnExportService.java
index 169a8d3..ca4717b 100644
--- a/src/main/java/com/biutag/supervision/service/NegativeReturnExportService.java
+++ b/src/main/java/com/biutag/supervision/service/NegativeReturnExportService.java
@@ -58,7 +58,7 @@ public class NegativeReturnExportService {
                     returnVo.setReturnTime(history.getCrtTime());
                     returnVo.setReturnUser(history.getCrtName());
                     returnVo.setReturnOpinion(parsedHistory.comments());
-                    returnVo.setModifiedVerifyContent("尚未再次提交");
+                    returnVo.setModifiedVerifyContent(null);
                     returnRecords.add(returnVo);
                     pendingReturn = new PendingReturn(parsedHistory.actionKey(), latestSnapshot, returnVo);
                 } else if (pendingReturn != null && parsedHistory.snapshot() != null) {