diff --git a/Note/FormatNoteViewController.swift b/Note/FormatNoteViewController.swift
index ba4d9cb..455be96 100644
--- a/Note/FormatNoteViewController.swift
+++ b/Note/FormatNoteViewController.swift
@@ -208,19 +208,30 @@ class FormatNoteViewController: UIViewController {
             content = content.replacingOccurrences(of: old, with: new)
         }
 
-        content = content.replacingOccurrences(of: "。", with: "。\n")
-        content = content.replacingOccurrences(of: "？", with: "？\n")
-        content = removeEmptyLines(content)
-        content = content.replacingOccurrences(of: "：\\s*", with: "：\n\n", options: .regularExpression)
-        content = content.replacingOccurrences(of: "。", with: "。\n")
-        content = content.replacingOccurrences(of: "？", with: "？\n")
-        content = content.replacingOccurrences(of: "：\n\n", with: "：")
-        content = content.replacingOccurrences(of: "：一、", with: "：\n\n一、")
-        content = content.replacingOccurrences(of: " ", with: "")
-        content = content.replacingOccurrences(of: "---", with: "---\n")
         content = content.replacingOccurrences(of: "日星期", with: "日 星期")
+
+        // 保留原始段落结构
+        let paragraphs = content.components(separatedBy: .newlines)
+            .split(separator: "", omittingEmptySubsequences: false)
+            .map { $0.joined(separator: "\n") }
+
+        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)
+            p = p.replacingOccurrences(of: "：\\s*", with: "：\n\n", options: .regularExpression)
+            p = p.replacingOccurrences(of: "。", with: "。\n")
+            p = p.replacingOccurrences(of: "？", with: "？\n")
+            p = p.replacingOccurrences(of: "：\n\n", with: "：")
+            p = p.replacingOccurrences(of: "：一、", with: "：\n\n一、")
+            p = p.replacingOccurrences(of: "---", with: "---\n")
+            p = removeEmptyLines(p)
+            return p
+        }
+
+        content = formattedParagraphs.joined(separator: "\n\n")
         content = "# " + content
-        content = insertEmptyLineAfterFirstLine(content)
         return content
     }