diff --git a/Note/FormatNoteViewController.swift b/Note/FormatNoteViewController.swift
index a5cebf5..39ca2c1 100644
--- a/Note/FormatNoteViewController.swift
+++ b/Note/FormatNoteViewController.swift
@@ -223,13 +223,24 @@ class FormatNoteViewController: UIViewController {
         content = content.replacingOccurrences(of: "?", with: "？")
         content = content.replacingOccurrences(of: ",", with: "，")
         content = content.replacingOccurrences(of: ":", with: "：")
-        content = content.replacingOccurrences(of: "。", with: "。\n")
-        content = content.replacingOccurrences(of: "？", with: "？\n")
-        content = removeEmptyLines(content)
         content = content.replacingOccurrences(of: "---", with: "")
         content = content.replacingOccurrences(of: "日星期", with: "日 星期")
-        content = insertEmptyLineAfterFirstLine(content)
-        return content
+
+        // 按原始空行分割段落
+        let paragraphs = content.components(separatedBy: .newlines)
+            .split(separator: "", omittingEmptySubsequences: false)
+            .map { $0.joined(separator: "\n") }
+
+        // 每个段落内部按句换行，段落之间保留两个空行
+        let formattedParagraphs = paragraphs.map { paragraph -> String in
+            var p = paragraph
+            p = p.replacingOccurrences(of: "。", with: "。\n")
+            p = p.replacingOccurrences(of: "？", with: "？\n")
+            p = removeEmptyLines(p)
+            return p
+        }
+
+        return formattedParagraphs.joined(separator: "\n\n\n")
     }
 
     private func saveToFiles() {