diff --git a/src/components/chat/Chat.vue b/src/components/chat/Chat.vue
index 3b802fe..6d806d7 100644
--- a/src/components/chat/Chat.vue
+++ b/src/components/chat/Chat.vue
@@ -175,6 +175,8 @@
           class="text-center block mt-2 mb-2 text-sm select-none"
         >
           AI 也有可能犯错误，请在使用之前核查信息。
+          <br />
+          测试版本，不代表最终品质。
         </n-text>
       </div>
     </div>
diff --git a/src/components/markdown/index.vue b/src/components/markdown/index.vue
index 2b1bdab..87db342 100644
--- a/src/components/markdown/index.vue
+++ b/src/components/markdown/index.vue
@@ -146,15 +146,13 @@ watch(
         immediate: true
     }
 )
-// const {copy} = useCopy()
-
 const handleClick = async (e: any) => {
     console.log(e.target)
     const target: HTMLElement = e.target
     if (target.className === 'code-copy-btn') {
         const text = e.target.parentElement.nextElementSibling.textContent
-        // await copy(text)
-        // copy
+        // copy text to clipboard
+        await navigator.clipboard.writeText(text)
     }
     if (target.className === 'markdown-custom-link') {
         emit('click-custom-link', target.textContent!)
diff --git a/src/layouts/DefaultLayout.vue b/src/layouts/DefaultLayout.vue
index 3e0e9d3..4a79b58 100644
--- a/src/layouts/DefaultLayout.vue
+++ b/src/layouts/DefaultLayout.vue
@@ -101,17 +101,4 @@ const onScroll = (e: Event) => {
       </div> -->
     </n-layout>
   </n-layout>
-
-  <n-watermark
-    content="测试版本，不代表最终品质"
-    cross
-    fullscreen
-    :font-size="16"
-    :line-height="16"
-    :width="384"
-    :height="384"
-    :x-offset="12"
-    :y-offset="60"
-    :rotate="-15"
-  />
 </template>