diff --git a/content.js b/content.js
index 358ed97..32dda83 100644
--- a/content.js
+++ b/content.js
@@ -26,7 +26,7 @@
     zIndex: '2147483647',
     boxShadow: '-4px 0 8px rgba(0,0,0,0.15)',
     backgroundColor: 'white',
-    transform: 'translateX(0)',
+    transform: 'translateX(100%)', // 默认关闭状态
     transition: 'transform 0.3s ease',
   });
 
@@ -65,7 +65,7 @@
   document.body.appendChild(toggleBtn);
 
   // 折叠 / 展开逻辑
-  let visible = true;
+  let visible = false; // 默认关闭状态
   toggleBtn.addEventListener('click', () => {
     visible = !visible;
     iframe.style.transform = visible ? 'translateX(0)' : 'translateX(100%)';
@@ -95,4 +95,4 @@
       return true;
     }
   });
-})();
+})();
\ No newline at end of file
diff --git a/sidepanel/index.css b/sidepanel/index.css
index 818edbb..dd1b290 100644
--- a/sidepanel/index.css
+++ b/sidepanel/index.css
@@ -35,6 +35,29 @@
   margin-left: auto;
 }
 
+.input-text {
+  width: 100%;
+  padding: 0.5rem;
+  margin: 0.5rem 0;
+  box-sizing: border-box;
+}
+
+.convert-button {
+  padding: 0.5rem 1rem;
+  background-color: #28a745;
+  color: white;
+  border: none;
+  border-radius: 0.25rem;
+  cursor: pointer;
+}
+
+.select-box {
+  width: 100%;
+  padding: 0.5rem;
+  margin: 0.5rem 0;
+  box-sizing: border-box;
+}
+
 .content {
   padding: 1rem;
 }
@@ -45,4 +68,4 @@
 
 .page.active {
   display: block;
-}
\ No newline at end of file
+}
diff --git a/sidepanel/index.html b/sidepanel/index.html
index 875aa87..6724b47 100644
--- a/sidepanel/index.html
+++ b/sidepanel/index.html
@@ -18,6 +18,7 @@
 
       <!-- 页面内容容器 -->
       <div class="content">
+
         <!-- 时间戳工具页面 -->
         <div id="page-timestamp" class="page active">
           <h2>时间戳工具</h2>
@@ -32,6 +33,35 @@
               <button id="start-timestamp-btn" style="display: none">开始</button>
             </p>
           </div>
+
+          <!-- 时间戳转日期时间 -->
+          <div>
+            <h2>时间戳转日期时间</h2>
+            <div>
+              <input type="text" id="input-timestamp" placeholder="请输入时间戳" class="input-text" />
+              <select class="select-box">
+                <option value="milliseconds">毫秒(ms)</option>
+                <option value="seconds">秒(s)</option>
+              </select>
+            </div>
+            <div>
+              <button id="convert-timestamp-btn" class="convert-button">转换</button>
+            </div>
+            <div>
+              <input type="text" id="timestamp-input-result" placeholder="转换结果" class="input-text"></input>
+              <select class="select-box">
+                <option>Asia/Shanghai</option>
+              </select>
+            </div>
+          </div>
+
+          <!-- 日期时间转时间戳 -->
+          <div>
+            <h2>日期时间转时间戳</h2>
+
+            <button id="convert-datetime-btn">转换</button>
+            <p id="converted-timestamp"></p>
+          </div>
         </div>
 
         <!-- 其他工具页面 -->
diff --git a/sidepanel/index.js b/sidepanel/index.js
index d38e942..1b73ab6 100644
--- a/sidepanel/index.js
+++ b/sidepanel/index.js
@@ -48,6 +48,59 @@ toggleTimestampBtn.addEventListener('click', () => {
   updateTimestamp(showMilliseconds);
 });
 
+const inputTimestamp = document.getElementById('input-timestamp');
+const convertTimestampBtn = document.getElementById('convert-timestamp-btn');
+const timestampInputResult = document.getElementById('timestamp-input-result');
+const timestampUnitSelect = document.querySelector('#page-timestamp select'); // 时间戳单位选择器
+
+convertTimestampBtn.addEventListener('click', () => {
+  const timestamp = inputTimestamp.value.trim();
+  console.log('输入时间戳：', timestamp);
+
+  if (!timestamp) {
+    timestampInputResult.value = '请输入时间戳';
+    return;
+  }
+
+  // 获取选择的时间戳单位（秒或毫秒）
+  const isSeconds = timestampUnitSelect.value === 'seconds';
+
+  // 转换为数字
+  let timestampNum = Number(timestamp);
+
+  // 如果是秒，转换为毫秒
+  if (isSeconds) {
+    timestampNum = timestampNum * 1000;
+  }
+
+  // 检查是否为有效数字
+  if (isNaN(timestampNum)) {
+    timestampInputResult.value = '请输入有效的时间戳';
+    return;
+  }
+
+  // 创建日期对象
+  const date = new Date(timestampNum);
+
+  // 检查日期是否有效
+  if (isNaN(date.getTime())) {
+    timestampInputResult.value = '无效的日期';
+    return;
+  }
+
+  console.log('转换日期对象：', date);
+  const year = date.getFullYear();
+  const month = date.getMonth() + 1;
+  const day = date.getDate();
+  const hours = date.getHours();
+  const minutes = date.getMinutes();
+  const seconds = date.getSeconds();
+
+  console.log('转换结果：', `${year}年${month}月${day}日 ${hours}时${minutes}分${seconds}秒`);
+
+  timestampInputResult.value = `${year}年${month}月${day}日 ${hours}时${minutes}分${seconds}秒`;
+});
+
 // 复制时间戳到剪贴板
 const copyTimestampBtn = document.getElementById('copy-timestamp-btn');
 const currentTimestamp = document.getElementById('current-timestamp');
@@ -55,15 +108,18 @@ copyTimestampBtn.addEventListener('click', () => {
   // 获取时间戳文本
   const timestampText = currentTimestamp.textContent;
 
-  chrome.runtime.sendMessage({ action: 'copyText', data: timestampText }, (res) => {
-    if (chrome.runtime.lastError) {
-      console.error('❌ 传送时间戳文本失败：', chrome.runtime.lastError);
-    } else if (res?.success) {
-      console.log('✅ 已复制：', timestampText);
-    } else {
-      console.error('❌ 复制失败：', res);
-    }
-  });
+  // 检查扩展上下文是否仍然有效
+  if (chrome.runtime && chrome.runtime.sendMessage) {
+    chrome.runtime.sendMessage({ action: 'copyText', data: timestampText }, (res) => {
+      if (chrome.runtime.lastError) {
+        console.error('❌ 传送时间戳文本失败：', chrome.runtime.lastError);
+      } else if (res?.success) {
+        console.log('✅ 已复制：', timestampText);
+      } else {
+        console.error('❌ 复制失败：', res);
+      }
+    });
+  }
 });
 
 function switchPage(pageName) {