diff --git a/src/Notes-master/src/net/micode/notes/data/Notes.java b/src/Notes-master/src/net/micode/notes/data/Notes.java
index 296d7cb..0ee1e98 100644
--- a/src/Notes-master/src/net/micode/notes/data/Notes.java
+++ b/src/Notes-master/src/net/micode/notes/data/Notes.java
@@ -17,10 +17,6 @@
 package net.micode.notes.data;
 
 import android.net.Uri;
-/**
- * 笔记应用的核心配置类，定义了所有常量、数据类型和URI
- * 包含笔记和文件夹的类型定义、系统文件夹ID、Intent额外参数、数据库列名等
- */
 public class Notes {
     public static final String AUTHORITY = "micode_notes";
     public static final String TAG = "Notes";
@@ -103,6 +99,12 @@ public class Notes {
          */
         public static final String SNIPPET = "snippet";
 
+        /**
+         * 新增：便签标题
+         * Type: TEXT
+         */
+        public static final String TITLE = "title";
+
         /**
          * Note's widget id
          * <P> Type: INTEGER (long) </P>
@@ -169,6 +171,36 @@ public class Notes {
          * <P> Type : INTEGER (long) </P>
          */
         public static final String VERSION = "version";
+
+        /**
+         * 新增：是否置顶 (0-普通, 1-置顶)
+         * Type: INTEGER
+         */
+        public static final String IS_PINNED = "is_pinned";
+
+        /**
+         * 新增：是否私密 (0-公开, 1-私密)
+         * Type: INTEGER
+         */
+        public static final String IS_PRIVATE = "is_private";
+
+        /**
+         * 新增：视图模式 (0-列表, 1-瀑布流)
+         * Type: INTEGER
+         */
+        public static final String VIEW_MODE = "view_mode";
+
+        /**
+         * 新增：自定义背景图片URI
+         * Type: TEXT
+         */
+        public static final String CUSTOM_BG_URI = "custom_bg_uri";
+
+        /**
+         * 新增：扩展字段1 (预留)
+         * Type: TEXT
+         */
+        public static final String EXPAND_1 = "expand_1";
     }
 
     public interface DataColumns {
@@ -280,4 +312,13 @@ public class Notes {
 
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
     }
+
+    public static final class ImageNote implements DataColumns {
+        // 借用 CONTENT 字段存储图片的 URI 字符串
+        public static final String IMAGE_URI = CONTENT;
+
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/image_note";
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/image_note";
+        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/image_note");
+    }
 }