diff --git a/components/DatetimeToTimestamp.tsx b/components/DatetimeToTimestamp.tsx
index 389c45f..7789e29 100644
--- a/components/DatetimeToTimestamp.tsx
+++ b/components/DatetimeToTimestamp.tsx
@@ -49,31 +49,25 @@ const TIMESTAMP_UNITS = [
 ];
 
 export function DatetimeToTimestamp() {
-  /** @type {[string, function]} 输入的日期时间字符串 */
   const [dateValue, setDateValue] = useState(() => formatWithZone(Date.now(), 'Asia/Shanghai'));
 
-  /** @type {[string, function]} 选择的时区 */
   const [selectedZone, setSelectedZone] = useState('Asia/Shanghai');
 
-  /** @type {[string, function]} 转换结果 */
   const [result, setResult] = useState('');
 
-  /** @type {[string, function]} 时间戳单位 ('milliseconds' | 'seconds') */
   const [unit, setUnit] = useState('milliseconds');
 
-  /** @type {[string, function]} 错误信息 */
   const [error, setError] = useState('');
 
   /**
    * 转换日期时间为时间戳
-   * @type {function(): void}
    */
   const handleConvertDatetimeToTimestamp = useCallback(() => {
     try {
       setError('');
       const timestamp = formatWithDate(dateValue, selectedZone);
 
-      if (isNaN(timestamp)) {
+      if (typeof timestamp !== 'number' || isNaN(timestamp)) {
         setError('无效的日期时间格式');
         setResult('');
         return;
@@ -90,7 +84,6 @@ export function DatetimeToTimestamp() {
 
   /**
    * 处理日期时间输入变化
-   * @type {function(React.ChangeEvent<HTMLInputElement>): void}
    */
   const handleDateChange = useCallback((e) => {
     setDateValue(e.target.value);
@@ -99,7 +92,6 @@ export function DatetimeToTimestamp() {
 
   /**
    * 处理时区选择变化
-   * @type {function(React.ChangeEvent<HTMLSelectElement>): void}
    */
   const handleZoneChange = useCallback((e) => {
     setSelectedZone(e.target.value);
@@ -107,7 +99,6 @@ export function DatetimeToTimestamp() {
 
   /**
    * 处理时间戳单位变化
-   * @type {function(React.ChangeEvent<HTMLSelectElement>): void}
    */
   const handleUnitChange = useCallback(
     (e) => {
diff --git a/components/TimestampExecution.tsx b/components/TimestampExecution.tsx
index 1937419..efb9217 100644
--- a/components/TimestampExecution.tsx
+++ b/components/TimestampExecution.tsx
@@ -1,16 +1,9 @@
-import { useEffect, useState, useRef, useCallback } from 'react';
+import { useEffect, useState, useCallback } from 'react';
 import CopyButton from './CopyButton';
 
 /**
  * 时间戳显示和执行组件
  *
- * 功能特性：
- * 1. 实时显示当前时间戳（毫秒/秒）
- * 2. 支持毫秒和秒单位切换
- * 3. 支持启动/停止时间戳自动更新
- * 4. 提供复制时间戳功能
- * 5. 响应式设计和良好的可访问性
- *
  * @component
  * @example
  * ```jsx
@@ -29,9 +22,6 @@ export function TimestampExecution() {
   /** @type {[boolean, function]} 时间戳是否正在自动更新 */
   const [isRunningTimestamp, setIsRunningTimestamp] = useState(true);
 
-  /** @type {React.RefObject<NodeJS.Timeout | null>} 定时器引用，用于清理 */
-  const timerRef = useRef(null);
-
   /**
    * 计算显示的时间戳值
    * @type {number}
@@ -40,10 +30,6 @@ export function TimestampExecution() {
     ? currentTimestamp
     : Math.floor(currentTimestamp / 1000);
 
-  /**
-   * 计算单位文本
-   * @type {string}
-   */
   const unitText = showMilliseconds ? '毫秒' : '秒';
 
   /**
@@ -51,32 +37,21 @@ export function TimestampExecution() {
    * 根据 isRunningTimestamp 和 showMilliseconds 控制定时器的启停和间隔
    */
   useEffect(() => {
-    // 清除之前的定时器
-    if (timerRef.current) {
-      clearInterval(timerRef.current);
-      timerRef.current = null;
-    }
+    let timer: number;
 
-    // 如果需要运行，创建新的定时器
     if (isRunningTimestamp) {
       const interval = showMilliseconds ? 100 : 1000;
-      timerRef.current = setInterval(() => {
+      timer = window.setInterval(() => {
         setCurrentTimestamp(Math.floor(Date.now()));
       }, interval);
     }
 
     // 清理函数
-    return () => {
-      if (timerRef.current) {
-        clearInterval(timerRef.current);
-        timerRef.current = null;
-      }
-    };
+    return () => clearInterval(timer);
   }, [isRunningTimestamp, showMilliseconds]);
 
   /**
    * 切换时间戳显示单位（毫秒/秒）
-   * @type {function(): void}
    */
   const toggleUnit = useCallback(() => {
     setShowMilliseconds((prev) => !prev);
@@ -84,7 +59,6 @@ export function TimestampExecution() {
 
   /**
    * 切换时间戳自动更新状态（启动/停止）
-   * @type {function(): void}
    */
   const toggleTimestamp = useCallback(() => {
     setIsRunningTimestamp((prev) => !prev);
diff --git a/utils/db.tsx b/utils/db.tsx
deleted file mode 100644
index 32166ce..0000000
--- a/utils/db.tsx
+++ /dev/null
@@ -1,7 +0,0 @@
-import Dexie from "dexie";
-
-export const db = new Dexie("testImagesDb");
-
-db.version(1).stores({
-  images: '++id, created, source'
-});
\ No newline at end of file
diff --git a/utils/env.tsx b/utils/env.tsx
deleted file mode 100644
index 836b527..0000000
--- a/utils/env.tsx
+++ /dev/null
@@ -1,7 +0,0 @@
-/**
- * 判断当前是否处于 Chrome 插件环境
- * @returns {false|chrome.storage.LocalStorageArea}
- */
-export const isExtension = () => {
-  return typeof chrome !== 'undefined' && chrome.storage && chrome.storage.local;
-}
\ No newline at end of file
diff --git a/utils/storageAdapter.tsx b/utils/storageAdapter.tsx
deleted file mode 100644
index 355f684..0000000
--- a/utils/storageAdapter.tsx
+++ /dev/null
@@ -1,30 +0,0 @@
-// 判断当前是否处于 Chrome 插件环境
-const isExtension = typeof chrome !== 'undefined' && chrome.storage && chrome.storage.local;
-
-const storageAdapter = {
-  // 获取数据
-  get: async (key) => {
-    if (isExtension) {
-      const result = await chrome.storage.local.get([key]);
-      return result[key];
-    } else {
-      const item = localStorage.getItem(key);
-      try {
-        return JSON.parse(item); // 保持与插件版一致的对象处理
-      } catch {
-        return item;
-      }
-    }
-  },
-  
-  // 设置数据
-  set: async (key, value) => {
-    if (isExtension) {
-      await chrome.storage.local.set({[key]: value});
-    } else {
-      localStorage.setItem(key, JSON.stringify(value));
-    }
-  }
-};
-
-export default storageAdapter;
\ No newline at end of file