diff --git a/electron/database/sqlite.js b/electron/database/sqlite.js
deleted file mode 100644
index b4e2bcc..0000000
--- a/electron/database/sqlite.js
+++ /dev/null
@@ -1,179 +0,0 @@
-const sqlite3 = require('sqlite3').verbose()
-const path = require('path')
-const fs = require('fs')
-const { app } = require('electron')
-
-// 数据库路径
-const dbPath = path.join(app.getPath('userData'), 'database.sqlite')
-let db
-
-// 初始化数据库
-function initDatabase() {
-	const dbDir = path.dirname(dbPath)
-	if (!fs.existsSync(dbDir)) {
-		fs.mkdirSync(dbDir, { recursive: true })
-	}
-
-	db = new sqlite3.Database(dbPath)
-
-	// 创建表
-	db.serialize(() => {
-		db.run(`
-      CREATE TABLE IF NOT EXISTS files (
-        file_id INTEGER PRIMARY KEY AUTOINCREMENT,
-        file_name TEXT NOT NULL,
-        file_ext TEXT,
-        file_cat TEXT,
-        file_tags TEXT,
-        file_desc TEXT,
-        file_created_time DATETIME,
-        file_updated_time DATETIME,
-        file_path TEXT NOT NULL UNIQUE,
-        is_directory BOOLEAN DEFAULT 0,
-        added_time DATETIME DEFAULT CURRENT_TIMESTAMP
-      )
-    `)
-	})
-
-	console.log('Database initialized at:', dbPath)
-	return db
-}
-
-// 添加文件记录
-function addFile(fileData) {
-	return new Promise((resolve, reject) => {
-		const stmt = db.prepare(`
-      INSERT INTO files (
-        file_name, file_ext, file_cat, file_tags, file_desc, 
-        file_created_time, file_updated_time, file_path, is_directory
-      ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
-    `)
-
-		stmt.run(
-			fileData.fileName,
-			fileData.fileExt,
-			fileData.fileCat,
-			JSON.stringify(fileData.fileTags || []),
-			fileData.fileDesc,
-			fileData.fileCreatedTime,
-			fileData.fileUpdatedTime,
-			fileData.filePath,
-			fileData.isDirectory ? 1 : 0,
-			function (err) {
-				if (err) {
-					reject(err)
-				} else {
-					resolve(this.lastID)
-				}
-			},
-		)
-
-		stmt.finalize()
-	})
-}
-
-// 搜索文件
-function searchFiles(criteria) {
-	return new Promise((resolve, reject) => {
-		let query = `SELECT * FROM files WHERE 1=1`
-		const params = []
-
-		if (criteria.fileName) {
-			query += ` AND file_name LIKE ?`
-			params.push(`%${criteria.fileName}%`)
-		}
-
-		if (criteria.fileCat) {
-			query += ` AND file_cat = ?`
-			params.push(criteria.fileCat)
-		}
-
-		if (criteria.fileTags && criteria.fileTags.length > 0) {
-			const tagConditions = criteria.fileTags.map(() => `file_tags LIKE ?`).join(' OR ')
-			query += ` AND (${tagConditions})`
-			criteria.fileTags.forEach((tag) => {
-				params.push(`%${tag}%`)
-			})
-		}
-
-		if (criteria.startDate) {
-			query += ` AND added_time >= ?`
-			params.push(criteria.startDate)
-		}
-
-		if (criteria.endDate) {
-			query += ` AND added_time <= ?`
-			params.push(criteria.endDate)
-		}
-
-		db.all(query, params, (err, rows) => {
-			if (err) {
-				reject(err)
-			} else {
-				// 解析JSON格式的标签
-				const results = rows.map((row) => ({
-					...row,
-					fileTags: JSON.parse(row.file_tags || '[]'),
-				}))
-				resolve(results)
-			}
-		})
-	})
-}
-
-// 获取统计数据
-function getStats() {
-	return new Promise((resolve, reject) => {
-		const stats = {}
-
-		// 获取文件总数
-		db.get('SELECT COUNT(*) as count FROM files WHERE is_directory = 0', (err, row) => {
-			if (err) {
-				reject(err)
-				return
-			}
-			stats.fileCount = row.count
-
-			// 获取文件夹总数
-			db.get('SELECT COUNT(*) as count FROM files WHERE is_directory = 1', (err, row) => {
-				if (err) {
-					reject(err)
-					return
-				}
-				stats.dirCount = row.count
-
-				// 获取文件类型分布
-				db.all(
-					'SELECT file_ext, COUNT(*) as count FROM files WHERE is_directory = 0 GROUP BY file_ext',
-					(err, rows) => {
-						if (err) {
-							reject(err)
-							return
-						}
-						stats.fileTypes = rows
-
-						// 获取最近添加的文件
-						db.all('SELECT * FROM files ORDER BY added_time DESC LIMIT 10', (err, rows) => {
-							if (err) {
-								reject(err)
-							} else {
-								stats.recentFiles = rows.map((row) => ({
-									...row,
-									fileTags: JSON.parse(row.file_tags || '[]'),
-								}))
-								resolve(stats)
-							}
-						})
-					},
-				)
-			})
-		})
-	})
-}
-
-module.exports = {
-	initDatabase,
-	addFile,
-	searchFiles,
-	getStats,
-}
diff --git a/electron/main.cjs b/electron/main.cjs
index a482189..d7486db 100644
--- a/electron/main.cjs
+++ b/electron/main.cjs
@@ -16,9 +16,15 @@ let mainWindow
 let db
 
 function createWindow() {
+	// 设置应用图标路径
+	const iconPath = process.platform === 'darwin' 
+		? path.join(__dirname, '../public/icons/mac.icns')
+		: path.join(__dirname, '../public/icons/win.ico')
+		
 	mainWindow = new BrowserWindow({
 		width: 1200,
 		height: 800,
+		icon: iconPath,
 		webPreferences: {
 			preload: path.join(__dirname, 'preload.cjs'),
 			contextIsolation: true,