diff --git a/electron/services/config.ts b/electron/services/config.ts
index 87029c9..9f37183 100644
--- a/electron/services/config.ts
+++ b/electron/services/config.ts
@@ -729,7 +729,7 @@ export class ConfigService {
   // === 工具方法 ===
 
   /**
-   * 获取当前 wxid 对应的图片密钥，优先从 wxidConfigs 中取，找不到则回退到全局��置
+   * 获取当前 wxid 对应的图片密钥，优先从 wxidConfigs 中取，找不到则回退到全局配置
    */
   getImageKeysForCurrentWxid(): { xorKey: unknown; aesKey: string } {
     const wxid = this.get('myWxid')
diff --git a/electron/services/imageDecryptService.ts b/electron/services/imageDecryptService.ts
index 37b41f2..b0d8513 100644
--- a/electron/services/imageDecryptService.ts
+++ b/electron/services/imageDecryptService.ts
@@ -934,7 +934,7 @@ export class ImageDecryptService {
         } catch { }
       }
 
-      // --- 绛栫暐 B: 鏂扮増 Session 鍝堝笇璺緞鐚滄祴 ---
+      // --- 策略 B: 新版 Session 哈希路径猜测 ---
       try {
         const entries = await fs.readdir(root, { withFileTypes: true })
         const sessionDirs = entries
@@ -1833,7 +1833,7 @@ export class ImageDecryptService {
   }
 
   /**
-   * 浠?wxgf 鏁版嵁涓彁鍙?HEVC NALU 瑁告祦
+   * 从 wxgf 数据中提取 HEVC NALU 裸流
    */
   private extractHevcNalu(buffer: Buffer): Buffer | null {
     const nalUnits: Buffer[] = []
diff --git a/electron/services/insightService.ts b/electron/services/insightService.ts
index 305cfd6..e03d657 100644
--- a/electron/services/insightService.ts
+++ b/electron/services/insightService.ts
@@ -279,7 +279,7 @@ class InsightService {
   }
 
   /**
-   * 测��� API 连接，返回 { success, message }。
+   * 测试 API 连接，返回 { success, message }。
    * 供设置页"测试连接"按钮调用。
    */
   async testConnection(): Promise<{ success: boolean; message: string }> {
@@ -438,7 +438,7 @@ class InsightService {
   }
 
   /**
-   * 获取今日全局已触发次数（所有会话合计），用于 prompt 中告知模���全局上下文。
+   * 获取今日全局已触发次数（所有会话合计），用于 prompt 中告知模型全局上下文。
    */
   private getTodayTotalTriggerCount(): number {
     this.resetIfNewDay()
@@ -668,7 +668,7 @@ class InsightService {
       return
     }
 
-    // ── 构建 prompt ─────────────���───────────────────────────────���────────────
+    // ── 构建 prompt ────────────────────────────────────────────────────────────
 
     // 今日触发统计（让模型具备时间与克制感）
     const sessionTriggerTimes = this.recordTrigger(sessionId)
diff --git a/src/pages/SettingsPage.tsx b/src/pages/SettingsPage.tsx
index 35f989f..92a9b5f 100644
--- a/src/pages/SettingsPage.tsx
+++ b/src/pages/SettingsPage.tsx
@@ -125,7 +125,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
 
     setHttpApiToken(token)
     await configService.setHttpApiToken(token)
-    showMessage('已生成��保存新的 Access Token', true)
+    showMessage('已生成并保存新的 Access Token', true)
   }
 
   const clearApiToken = async () => {
@@ -635,7 +635,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
       showMessage(`已切换到${channelLabel}更新渠道，正在检查更新`, true)
       await handleCheckUpdate()
     } catch (e: any) {
-      showMessage(`切换更新渠道��败: ${e}`, false)
+      showMessage(`切换更新渠道失败: ${e}`, false)
     }
   }
 
@@ -1230,7 +1230,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
       if (result.success && result.aesKey) {
         if (typeof result.xorKey === 'number') setImageXorKey(`0x${result.xorKey.toString(16).toUpperCase().padStart(2, '0')}`)
         setImageAesKey(result.aesKey)
-        setImageKeyStatus('已获取图片��钥')
+        setImageKeyStatus('已获取图片密钥')
         showMessage('已自动获取图片密钥', true)
         const newXorKey = typeof result.xorKey === 'number' ? result.xorKey : 0
         const newAesKey = result.aesKey
@@ -3232,7 +3232,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
               value={`http://${httpApiHost}:${httpApiPort}`}
               readOnly
             />
-            <button className="btn btn-secondary" onClick={handleCopyApiUrl} title="复���">
+            <button className="btn btn-secondary" onClick={handleCopyApiUrl} title="复制">
               <Copy size={16} />
             </button>
           </div>
@@ -3366,7 +3366,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
     try {
       const verifyResult = await window.electronAPI.auth.hello('请验证您的身份以开启 Windows Hello')
       if (!verifyResult.success) {
-        showMessage(verifyResult.error || 'Windows Hello ��证失败', false)
+        showMessage(verifyResult.error || 'Windows Hello 验证失败', false)
         return
       }
 
@@ -3598,7 +3598,7 @@ function SettingsPage({ onClose }: SettingsPageProps = {}) {
                 onClick={handleSetupHello}
                 disabled={!helloAvailable || isSettingHello || !authEnabled || !helloPassword}
               >
-                {isSettingHello ? '���置中...' : '开启与设置'}
+                {isSettingHello ? '配置中...' : '开启与设置'}
               </button>
             )}
           </div>
diff --git a/src/pages/SnsPage.tsx b/src/pages/SnsPage.tsx
index b9bf6b0..88909a3 100644
--- a/src/pages/SnsPage.tsx
+++ b/src/pages/SnsPage.tsx
@@ -1127,7 +1127,7 @@ export default function SnsPage() {
                     activeContactsCountTaskIdRef.current = null
                 }
                 finishBackgroundTask(taskId, 'completed', {
-                    detail: '鑱旂郴浜烘湅鍙嬪湀鏉℃暟琛ョ畻瀹屾垚',
+                    detail: '联系人朋友圈条数补算完成',
                     progressText: `${totalTargets}/${totalTargets}`
                 })
             }
diff --git a/src/services/config.ts b/src/services/config.ts
index 16cf4e6..fe24a9b 100644
--- a/src/services/config.ts
+++ b/src/services/config.ts
@@ -505,7 +505,7 @@ export async function setExportDefaultTxtColumns(columns: string[]): Promise<voi
   await config.set(CONFIG_KEYS.EXPORT_DEFAULT_TXT_COLUMNS, columns)
 }
 
-// 获取导出默认并发��
+// 获取导出默认并发数
 export async function getExportDefaultConcurrency(): Promise<number | null> {
   const value = await config.get(CONFIG_KEYS.EXPORT_DEFAULT_CONCURRENCY)
   if (typeof value === 'number' && Number.isFinite(value)) return value