diff --git a/src/components/editor/CustomEditor.vue b/src/components/editor/CustomEditor.vue
index afb7e99..7711510 100644
--- a/src/components/editor/CustomEditor.vue
+++ b/src/components/editor/CustomEditor.vue
@@ -123,11 +123,16 @@ const handleInput = (event) => {
 
   
   
-  const isEmpty = textContent === '' && 
-                 !target.querySelector('img, .editor-file, .mention')
-  
-  if (isEmpty && target.innerHTML !== '') {
-    target.innerHTML = ''
+  const editorNode = target;
+  const currentNormalizedHtml = editorNode.innerHTML.trim().toLowerCase().replace(/\s+/g, '');
+
+  const hasTextContent = editorNode.textContent.trim() !== '';
+  const hasSpecialElements = editorNode.querySelector('img, .editor-file, .mention');
+
+  if (!hasTextContent && !hasSpecialElements) {
+    if (currentNormalizedHtml !== '' && currentNormalizedHtml !== '<br>') {
+      editorNode.innerHTML = '';
+    }
   }
 
   
@@ -344,6 +349,36 @@ const handlePaste = (event) => {
 }
 
 
+// Helper function to insert line break
+const insertLineBreak = (range) => {
+  const editor = editorRef.value;
+  if (!editor) return;
+
+  const br = document.createElement('br');
+  range.deleteContents(); // Clear selected content or collapsed cursor position
+  range.insertNode(br);
+
+  // Create a zero-width space or a text node to ensure the cursor can be placed after the <br>
+  // and that the <br> is not immediately removed by cleanup logic if it's the only content.
+  const nbsp = document.createTextNode('\u200B'); // Zero-width space
+  range.setStartAfter(br);
+  range.insertNode(nbsp);
+  range.setStartAfter(nbsp);
+  range.collapse(true);
+
+  const selection = window.getSelection();
+  if (selection) {
+    selection.removeAllRanges();
+    selection.addRange(range);
+  }
+
+  // Ensure editor focus and trigger input handling
+  editor.focus();
+  nextTick(() => {
+    handleInput({ target: editor });
+  });
+};
+
 const handleKeydown = (event) => {
   
   if (showMention.value) {
@@ -531,45 +566,61 @@ const handleKeydown = (event) => {
   
   
   if (event.key === 'Enter' && (event.ctrlKey || event.metaKey || event.shiftKey)) {
-    
-    const selection = window.getSelection()
-    if (selection && selection.rangeCount > 0) {
-      const range = selection.getRangeAt(0)
-      const br = document.createElement('br')
-      range.deleteContents()
-      range.insertNode(br)
-      
-      
-      const textNode = document.createTextNode('')
-      range.setStartAfter(br)
-      range.insertNode(textNode)
-      range.setStartAfter(textNode)
-      range.collapse(true)
-      selection.removeAllRanges()
-      selection.addRange(range)
-      
-      
-      handleInput({ target: editorRef.value })
+    event.preventDefault();
+
+    const editor = editorRef.value;
+    if (!editor) return;
+
+    const selection = window.getSelection();
+    if (!selection || selection.rangeCount === 0) {
+      // 如果没有选区，尝试聚焦并创建选区
+      editor.focus();
+      // 等待DOM更新
+      nextTick(() => {
+        const newSelection = window.getSelection();
+        if (newSelection && newSelection.rangeCount > 0) {
+          insertLineBreak(newSelection.getRangeAt(0));
+        }
+      });
+      return;
     }
-    
-    
-    event.preventDefault()
-    return
+
+    insertLineBreak(selection.getRangeAt(0));
+    return;
   }
+
+  
+
   
   
   if (event.key === 'Enter' && !event.ctrlKey && !event.metaKey && !event.shiftKey) {
-    event.preventDefault()
-    
-    
-    const editor = editorRef.value
-    const quoteElement = editor?.querySelector('.editor-quote')
-    if (!quoteElement && quoteData.value) {
-      quoteData.value = null
+    event.preventDefault(); 
+
+    const editor = editorRef.value;
+    if (!editor) return;
+
+    const messageData = parseEditorContent(); 
+    const isEmptyMessage = messageData.items.length === 0 ||
+                    (messageData.items.length === 1 &&
+                     messageData.items[0].type === 1 &&
+                     !messageData.items[0].content.trimEnd());
+
+    if (isEmptyMessage) {
+      // If the message is considered empty, prevent sending.
+      // Ensure editor is truly empty if it wasn't already.
+      if (editor.innerHTML !== '') { 
+        clearEditor(); 
+      }
+      return; 
     }
-    
-    
-    sendMessage()
+
+    // If message is not empty, proceed to send.
+    const quoteElement = editor.querySelector('.editor-quote');
+    if (!quoteElement && quoteData.value) {
+      quoteData.value = null;
+    }
+
+    sendMessage(); 
   }
 }
 
@@ -592,10 +643,15 @@ const sendMessage = () => {
 }
   messageData.items.forEach(item => {
     
-     if (item.type === 1 && cleanInvisibleChars(item.content.trimEnd())) {  
+     if (item.type === 1 && cleanInvisibleChars(item.content).trimEnd()) {  // Apply trimEnd after cleaning
+      const finalContent = cleanInvisibleChars(item.content).replace(/<br\s*\/?>/gi, '\n').trimEnd();
+      if (!finalContent && !messageData.mentionUids.length && !messageData.quoteId) {
+        // If after processing, the content is empty and no mentions/quote, skip
+        return;
+      }
       const data = {
         items: [{
-          content: cleanInvisibleChars(item.content),
+          content: finalContent, // Use the processed content
           type: 1
         }],
         mentionUids: messageData.mentionUids,
@@ -655,36 +711,30 @@ const parseEditorContent = () => {
   
   const processNode = (node) => {
     if (node.nodeType === Node.TEXT_NODE) {
-      
-      textContent += node.textContent
-      return
+      textContent += node.textContent;
+      return;
     }
-    
-    if (node.nodeType !== Node.ELEMENT_NODE) return
-    
-    
-    if (node.classList.contains('mention')) {
-      
-      const userId = node.getAttribute('data-user-id')
+
+    if (node.nodeType !== Node.ELEMENT_NODE) return;
+
+    if (node.tagName === 'BR') {
+      textContent += '\n';
+    } else if (node.classList.contains('mention')) {
+      const userId = node.getAttribute('data-user-id');
       if (userId) {
-        mentionUids.push(Number(userId))
+        mentionUids.push(Number(userId));
       }
-      textContent += node.textContent
+      textContent += node.textContent;
     } else if (node.tagName === 'IMG') {
-      
-      processImage(node)
+      processImage(node);
     } else if (node.classList.contains('emoji')) {
-      
-      textContent += node.getAttribute('alt') || node.textContent
+      textContent += node.getAttribute('alt') || node.textContent;
     } else if (node.classList.contains('editor-file')) {
-      
-      processFile(node)
+      processFile(node);
     } else if (node.childNodes.length) {
-      
-      Array.from(node.childNodes).forEach(processNode)
+      Array.from(node.childNodes).forEach(processNode);
     } else {
-      
-      textContent += node.textContent
+      textContent += node.textContent;
     }
   }
   
@@ -758,11 +808,11 @@ const parseEditorContent = () => {
   Array.from(tempDiv.childNodes).forEach(processNode)
   
   
-  if (textContent.trim()) {
+  if (textContent) {
     items.push({
       type: 1,
-      content: textContent.trimEnd()
-    })
+      content: textContent
+    });
   }
   
   
diff --git a/src/utils/auth.js b/src/utils/auth.js
index aeaeb1b..7dcbede 100644
--- a/src/utils/auth.js
+++ b/src/utils/auth.js
@@ -18,7 +18,7 @@ export function isLoggedIn() {
  */
 export function getAccessToken() {
   // return storage.get(AccessToken) || ''
-  return JSON.parse(localStorage.getItem('token'))||'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'
+  return JSON.parse(localStorage.getItem('token'))||'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'
 }
 
 /**