diff --git a/frontend/src/components/toolbar/BlockLanguageSelector.vue b/frontend/src/components/toolbar/BlockLanguageSelector.vue
index a287727..13d5bca 100644
--- a/frontend/src/components/toolbar/BlockLanguageSelector.vue
+++ b/frontend/src/components/toolbar/BlockLanguageSelector.vue
@@ -8,7 +8,7 @@ import { getActiveNoteBlock } from '@/views/editor/extensions/codeblock/state';
 import { changeCurrentBlockLanguage } from '@/views/editor/extensions/codeblock/commands';
 
 const { t } = useI18n();
-const editorStore = readonly(useEditorStore());
+const editorStore = useEditorStore(); 
 
 // 组件状态
 const showLanguageMenu = shallowRef(false);
diff --git a/frontend/src/components/toolbar/Toolbar.vue b/frontend/src/components/toolbar/Toolbar.vue
index e6528ca..bc41b08 100644
--- a/frontend/src/components/toolbar/Toolbar.vue
+++ b/frontend/src/components/toolbar/Toolbar.vue
@@ -14,14 +14,13 @@ import {getLanguage} from '@/views/editor/extensions/codeblock/lang-parser/langu
 import {formatBlockContent} from '@/views/editor/extensions/codeblock/formatCode';
 import {createDebounce} from '@/common/utils/debounce';
 import {toggleMarkdownPreview} from '@/views/editor/extensions/markdownPreview';
-import {usePanelStore} from '@/stores/panelStore';
+import {markdownPreviewManager} from "@/views/editor/extensions/markdownPreview/manager";
 
-const editorStore = readonly(useEditorStore());
-const configStore = readonly(useConfigStore());
-const updateStore = readonly(useUpdateStore());
-const windowStore = readonly(useWindowStore());
-const systemStore = readonly(useSystemStore());
-const panelStore = readonly(usePanelStore());
+const editorStore = useEditorStore();
+const configStore = useConfigStore();
+const updateStore = useUpdateStore();
+const windowStore = useWindowStore();
+const systemStore = useSystemStore();
 const {t} = useI18n();
 const router = useRouter();
 
@@ -39,7 +38,7 @@ const isCurrentWindowOnTop = computed(() => {
 
 // 当前文档的预览是否打开
 const isCurrentBlockPreviewing = computed(() => {
-  return panelStore.markdownPreview.isOpen && !panelStore.markdownPreview.isClosing;
+  return markdownPreviewManager.isVisible();
 });
 
 // 切换窗口置顶状态
diff --git a/frontend/src/stores/editorStore.ts b/frontend/src/stores/editorStore.ts
index b98fcb6..52c60a5 100644
--- a/frontend/src/stores/editorStore.ts
+++ b/frontend/src/stores/editorStore.ts
@@ -4,7 +4,6 @@ import {EditorView} from '@codemirror/view';
 import {EditorState, Extension} from '@codemirror/state';
 import {useConfigStore} from './configStore';
 import {useDocumentStore} from './documentStore';
-import {usePanelStore} from './panelStore';
 import {ExtensionID} from '@/../bindings/voidraft/internal/models/models';
 import {DocumentService, ExtensionService} from '@/../bindings/voidraft/internal/services';
 import {ensureSyntaxTree} from "@codemirror/language";
@@ -30,7 +29,7 @@ import {generateContentHash} from "@/common/utils/hashUtils";
 import {createTimerManager, type TimerManager} from '@/common/utils/timerUtils';
 import {EDITOR_CONFIG} from '@/common/constant/editor';
 import {createHttpClientExtension} from "@/views/editor/extensions/httpclient";
-import {markdownPreviewExtension, updateMarkdownPreviewTheme} from "@/views/editor/extensions/markdownPreview";
+import {markdownPreviewExtension} from "@/views/editor/extensions/markdownPreview";
 import {createDebounce} from '@/common/utils/debounce';
 
 export interface DocumentStats {
@@ -642,12 +641,6 @@ export const useEditorStore = defineStore('editor', () => {
         });
     };
 
-    // 应用 Markdown 预览主题
-    const applyPreviewThemeSettings = () => {
-        editorCache.values().forEach(instance => {
-            updateMarkdownPreviewTheme(instance.view);
-        });
-    };
 
     // 应用Tab设置
     const applyTabSettings = () => {
@@ -701,10 +694,6 @@ export const useEditorStore = defineStore('editor', () => {
             instance.view.destroy();
         });
         
-        // 清理 panelStore 状态（导航离开编辑器页面时）
-        const panelStore = usePanelStore();
-        panelStore.reset();
-
         currentEditor.value = null;
     };
 
@@ -790,7 +779,6 @@ export const useEditorStore = defineStore('editor', () => {
         // 配置更新方法
         applyFontSettings,
         applyThemeSettings,
-        applyPreviewThemeSettings,
         applyTabSettings,
         applyKeymapSettings,
 
diff --git a/frontend/src/stores/panelStore.ts b/frontend/src/stores/panelStore.ts
deleted file mode 100644
index 7df422e..0000000
--- a/frontend/src/stores/panelStore.ts
+++ /dev/null
@@ -1,170 +0,0 @@
-import { defineStore } from 'pinia';
-import { ref, computed } from 'vue';
-import type { EditorView } from '@codemirror/view';
-import { useDocumentStore } from './documentStore';
-
-/**
- * 单个文档的预览状态
- */
-interface DocumentPreviewState {
-  isOpen: boolean;
-  isClosing: boolean;
-  blockFrom: number;
-  blockTo: number;
-}
-
-/**
- * 面板状态管理 Store
- * 管理编辑器中各种面板的显示状态（按文档ID区分）
- */
-export const usePanelStore = defineStore('panel', () => {
-  // 当前编辑器视图引用
-  const editorView = ref<EditorView | null>(null);
-
-  // 每个文档的预览状态 Map<documentId, PreviewState>
-  const documentPreviews = ref<Map<number, DocumentPreviewState>>(new Map());
-
-  /**
-   * 获取当前文档的预览状态
-   */
-  const markdownPreview = computed(() => {
-    const documentStore = useDocumentStore();
-    const currentDocId = documentStore.currentDocumentId;
-    
-    if (currentDocId === null) {
-      return {
-        isOpen: false,
-        isClosing: false,
-        blockFrom: 0,
-        blockTo: 0
-      };
-    }
-
-    return documentPreviews.value.get(currentDocId) || {
-      isOpen: false,
-      isClosing: false,
-      blockFrom: 0,
-      blockTo: 0
-    };
-  });
-
-  /**
-   * 设置编辑器视图
-   */
-  const setEditorView = (view: EditorView | null) => {
-    editorView.value = view;
-  };
-
-  /**
-   * 打开 Markdown 预览面板
-   */
-  const openMarkdownPreview = (from: number, to: number) => {
-    const documentStore = useDocumentStore();
-    const currentDocId = documentStore.currentDocumentId;
-    
-    if (currentDocId === null) return;
-
-    documentPreviews.value.set(currentDocId, {
-      isOpen: true,
-      isClosing: false,
-      blockFrom: from,
-      blockTo: to
-    });
-  };
-
-  /**
-   * 开始关闭 Markdown 预览面板
-   */
-  const startClosingMarkdownPreview = () => {
-    const documentStore = useDocumentStore();
-    const currentDocId = documentStore.currentDocumentId;
-    
-    if (currentDocId === null) return;
-
-    const state = documentPreviews.value.get(currentDocId);
-    if (state?.isOpen) {
-      documentPreviews.value.set(currentDocId, {
-        ...state,
-        isClosing: true
-      });
-    }
-  };
-
-  /**
-   * 关闭 Markdown 预览面板
-   */
-  const closeMarkdownPreview = () => {
-    const documentStore = useDocumentStore();
-    const currentDocId = documentStore.currentDocumentId;
-    
-    if (currentDocId === null) return;
-
-    documentPreviews.value.set(currentDocId, {
-      isOpen: false,
-      isClosing: false,
-      blockFrom: 0,
-      blockTo: 0
-    });
-  };
-
-  /**
-   * 更新预览块的范围（用于实时预览）
-   */
-  const updatePreviewRange = (from: number, to: number) => {
-    const documentStore = useDocumentStore();
-    const currentDocId = documentStore.currentDocumentId;
-    
-    if (currentDocId === null) return;
-
-    const state = documentPreviews.value.get(currentDocId);
-    if (state?.isOpen) {
-      documentPreviews.value.set(currentDocId, {
-        ...state,
-        blockFrom: from,
-        blockTo: to
-      });
-    }
-  };
-
-  /**
-   * 检查指定块是否正在预览
-   */
-  const isBlockPreviewing = (from: number, to: number): boolean => {
-    const preview = markdownPreview.value;
-    return preview.isOpen &&
-           preview.blockFrom === from &&
-           preview.blockTo === to;
-  };
-
-  /**
-   * 重置所有面板状态
-   */
-  const reset = () => {
-    documentPreviews.value.clear();
-    editorView.value = null;
-  };
-
-  /**
-   * 清理指定文档的预览状态（文档关闭时调用）
-   */
-  const clearDocumentPreview = (documentId: number) => {
-    documentPreviews.value.delete(documentId);
-  };
-
-  return {
-    // 状态
-    editorView,
-    markdownPreview,
-
-    // 方法
-    setEditorView,
-    openMarkdownPreview,
-    startClosingMarkdownPreview,
-    closeMarkdownPreview,
-    updatePreviewRange,
-    isBlockPreviewing,
-    reset,
-    clearDocumentPreview
-  };
-});
-
diff --git a/frontend/src/stores/themeStore.ts b/frontend/src/stores/themeStore.ts
index 31e57da..55787ef 100644
--- a/frontend/src/stores/themeStore.ts
+++ b/frontend/src/stores/themeStore.ts
@@ -141,7 +141,6 @@ export const useThemeStore = defineStore('theme', () => {
 
     const editorStore = useEditorStore();
     editorStore?.applyThemeSettings();
-    editorStore?.applyPreviewThemeSettings();
   };
 
   return {
diff --git a/frontend/src/views/editor/Editor.vue b/frontend/src/views/editor/Editor.vue
index 5fcfb40..adcdeaf 100644
--- a/frontend/src/views/editor/Editor.vue
+++ b/frontend/src/views/editor/Editor.vue
@@ -11,6 +11,8 @@ import ContextMenu from './contextMenu/ContextMenu.vue';
 import { contextMenuManager } from './contextMenu/manager';
 import TranslatorDialog from './extensions/translator/TranslatorDialog.vue';
 import { translatorManager } from './extensions/translator/manager';
+import {markdownPreviewManager} from "@/views/editor/extensions/markdownPreview/manager";
+import PreviewPanel from "@/views/editor/extensions/markdownPreview/PreviewPanel.vue";
 
 const editorStore = useEditorStore();
 const documentStore = useDocumentStore();
@@ -37,6 +39,7 @@ onMounted(async () => {
 onBeforeUnmount(() => {
   contextMenuManager.destroy();
   translatorManager.destroy();
+  markdownPreviewManager.destroy();
 });
 </script>
 
@@ -46,8 +49,13 @@ onBeforeUnmount(() => {
     <transition name="loading-fade">
       <LoadingScreen v-if="editorStore.isLoading && enableLoadingAnimation" text="VOIDRAFT" />
     </transition>
-    <!-- 编辑器区域 -->
-    <div ref="editorElement" class="editor"></div>
+    <!-- 编辑器和预览面板的容器 -->
+    <div class="editor-wrapper">
+      <!-- 编辑器区域 -->
+      <div ref="editorElement" class="editor"></div>
+      <!-- Markdown 预览面板 -->
+      <PreviewPanel />
+    </div>
     <!-- 工具栏 -->
     <Toolbar />
     <!-- 右键菜单 -->
@@ -66,9 +74,18 @@ onBeforeUnmount(() => {
   flex-direction: column;
   position: relative;
 
-  .editor {
+  .editor-wrapper {
     width: 100%;
     flex: 1;
+    display: flex;
+    flex-direction: column;
+    overflow: hidden;
+    position: relative;
+  }
+
+  .editor {
+    width: 100%;
+    height: 100%;
     overflow: hidden;
     position: relative;
   }
diff --git a/frontend/src/views/editor/extensions/markdownPreview/PreviewPanel.vue b/frontend/src/views/editor/extensions/markdownPreview/PreviewPanel.vue
new file mode 100644
index 0000000..c3f6b90
--- /dev/null
+++ b/frontend/src/views/editor/extensions/markdownPreview/PreviewPanel.vue
@@ -0,0 +1,520 @@
+<script setup lang="ts">
+import { computed, nextTick, onUnmounted, ref, watch } from 'vue';
+import { markdownPreviewManager } from './manager';
+import { createMarkdownRenderer } from './renderer';
+import { updateMermaidTheme } from '@/common/markdown-it/plugins/markdown-it-mermaid';
+import { useThemeStore } from '@/stores/themeStore';
+import { createDebounce } from '@/common/utils/debounce';
+import { morphHTML } from '@/common/utils/domDiff';
+import * as runtime from '@wailsio/runtime';
+
+import './github-markdown.css';
+
+const state = markdownPreviewManager.useState();
+const themeStore = useThemeStore();
+
+const panelRef = ref<HTMLDivElement | null>(null);
+const contentRef = ref<HTMLDivElement | null>(null);
+const resizeHandleRef = ref<HTMLDivElement | null>(null);
+
+const isVisible = computed(() => state.value.visible);
+const content = computed(() => state.value.content);
+const height = computed(() => state.value.position.height);
+
+// Markdown 渲染器
+let md = createMarkdownRenderer();
+
+// 渲染的 HTML
+const renderedHtml = ref('');
+let lastRenderedContent = '';
+let isDestroyed = false;
+
+/**
+ * 使用 DOM Diff 渲染内容
+ */
+function renderWithDiff(markdownContent: string): void {
+  if (isDestroyed || !contentRef.value) return;
+
+  try {
+    const newHtml = md.render(markdownContent);
+    
+    // 首次渲染或内容为空，直接设置
+    if (!lastRenderedContent || contentRef.value.children.length === 0) {
+      renderedHtml.value = newHtml;
+    } else {
+      // 使用 DOM Diff 增量更新
+      morphHTML(contentRef.value, newHtml);
+    }
+    
+    lastRenderedContent = markdownContent;
+  } catch (error) {
+    console.warn('Markdown render error:', error);
+    renderedHtml.value = `<div class="markdown-error">Render failed: ${error}</div>`;
+  }
+}
+
+/**
+ * 异步渲染大内容
+ */
+function renderLargeContentAsync(markdownContent: string): void {
+  if (isDestroyed || !isVisible.value) return;
+
+  // 首次渲染显示加载状态
+  if (!lastRenderedContent) {
+    renderedHtml.value = '<div class="markdown-loading">Rendering...</div>';
+  }
+  
+  // 使用 requestIdleCallback 在浏览器空闲时渲染
+  const callback = window.requestIdleCallback || ((cb: IdleRequestCallback) => setTimeout(cb, 1));
+  
+  callback(() => {
+    // 再次检查状态，防止异步回调时预览已关闭
+    if (isDestroyed || !isVisible.value || !contentRef.value) return;
+
+    try {
+      const newHtml = md.render(markdownContent);
+      
+      // 首次渲染或内容为空
+      if (!lastRenderedContent || contentRef.value.children.length === 0) {
+        // 使用 DocumentFragment 减少 DOM 操作
+        const fragment = document.createRange().createContextualFragment(newHtml);
+        if (contentRef.value) {
+          contentRef.value.innerHTML = '';
+          contentRef.value.appendChild(fragment);
+        }
+      } else {
+        // 使用 DOM Diff 增量更新
+        morphHTML(contentRef.value, newHtml);
+      }
+      
+      lastRenderedContent = markdownContent;
+    } catch (error) {
+      console.warn('Large content render error:', error);
+      if (isVisible.value) {
+        renderedHtml.value = `<div class="markdown-error">Render failed: ${error}</div>`;
+      }
+    }
+  });
+}
+
+/**
+ * 渲染 Markdown 内容
+ */
+function renderMarkdown(markdownContent: string): void {
+  if (!markdownContent || markdownContent === lastRenderedContent) {
+    return;
+  }
+
+  // 大内容使用异步渲染
+  if (markdownContent.length > 1000) {
+    renderLargeContentAsync(markdownContent);
+  } else {
+    renderWithDiff(markdownContent);
+  }
+}
+
+/**
+ * 重新创建渲染器
+ */
+function resetRenderer(): void {
+  md = createMarkdownRenderer();
+  const currentTheme = themeStore.isDarkMode ? 'dark' : 'default';
+  updateMermaidTheme(currentTheme);
+  
+  lastRenderedContent = '';
+  if (content.value) {
+    renderMarkdown(content.value);
+  }
+}
+
+// 计算 data-theme 属性值
+const dataTheme = computed(() => themeStore.isDarkMode ? 'dark' : 'light');
+
+// 拖动相关状态
+let startY = 0;
+let startHeight = 0;
+let currentHandle: HTMLDivElement | null = null;
+
+const onMouseMove = (e: MouseEvent) => {
+  const delta = startY - e.clientY; // 向上拖动增加高度
+  
+  // 获取编辑器容器高度作为最大限制
+  const editorView = state.value.view;
+  const maxHeight = editorView 
+    ? (editorView.dom.parentElement?.clientHeight || editorView.dom.clientHeight)
+    : 9999;
+  
+  const newHeight = Math.max(100, Math.min(maxHeight, startHeight + delta));
+  markdownPreviewManager.updateHeight(newHeight);
+};
+
+const onMouseUp = () => {
+  document.removeEventListener('mousemove', onMouseMove);
+  document.removeEventListener('mouseup', onMouseUp);
+  if (currentHandle) {
+    currentHandle.classList.remove('dragging');
+  }
+  document.body.style.cursor = '';
+  document.body.style.userSelect = '';
+};
+
+const onMouseDown = (e: MouseEvent) => {
+  e.preventDefault();
+  e.stopPropagation();
+  startY = e.clientY;
+  startHeight = height.value;
+  currentHandle = resizeHandleRef.value;
+  if (currentHandle) {
+    currentHandle.classList.add('dragging');
+  }
+  document.body.style.cursor = 'ns-resize';
+  document.body.style.userSelect = 'none';
+  document.addEventListener('mousemove', onMouseMove);
+  document.addEventListener('mouseup', onMouseUp);
+};
+
+/**
+ * 清理拖动事件
+ */
+function cleanupResize(): void {
+  document.removeEventListener('mousemove', onMouseMove);
+  document.removeEventListener('mouseup', onMouseUp);
+  document.body.style.cursor = '';
+  document.body.style.userSelect = '';
+}
+
+/**
+ * 处理链接点击
+ */
+function handleLinkClick(e: MouseEvent): void {
+  const target = e.target as HTMLElement;
+  const anchor = target.closest('a');
+  if (!anchor) return;
+
+  const href = anchor.getAttribute('href');
+
+  // 处理锚点跳转
+  if (href && href.startsWith('#')) {
+    e.preventDefault();
+    const targetId = href.substring(1);
+    const targetElement = document.getElementById(targetId);
+    if (targetElement && contentRef.value?.contains(targetElement)) {
+      targetElement.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
+    }
+    return;
+  }
+
+  // 处理外部链接
+  if (href && !href.startsWith('#')) {
+    e.preventDefault();
+    if (isValidUrl(href)) {
+      runtime.Browser.OpenURL(href);
+    } else {
+      console.warn('Invalid or relative link:', href);
+    }
+    return;
+  }
+
+  // data-href 属性处理
+  const dataHref = anchor.getAttribute('data-href');
+  if (dataHref) {
+    e.preventDefault();
+    if (isValidUrl(dataHref)) {
+      runtime.Browser.OpenURL(dataHref);
+    }
+  }
+}
+
+/**
+ * 验证 URL 是否有效
+ */
+function isValidUrl(url: string): boolean {
+  try {
+    if (url.match(/^[a-zA-Z][a-zA-Z\d+\-.]*:/)) {
+      const parsedUrl = new URL(url);
+      const allowedProtocols = ['http:', 'https:', 'mailto:', 'file:', 'ftp:'];
+      return allowedProtocols.includes(parsedUrl.protocol);
+    }
+    return false;
+  } catch {
+    return false;
+  }
+}
+
+// 面板样式
+const panelStyle = computed(() => ({
+  height: `${height.value}px`
+}));
+
+// 创建防抖渲染函数
+const { debouncedFn: debouncedRender, cancel: cancelDebounce } = createDebounce(
+  (newContent: string) => {
+    if (isVisible.value && newContent) {
+      renderMarkdown(newContent);
+    }
+  },
+  { delay: 500 }
+);
+
+// 监听内容变化
+watch(
+  content,
+  (newContent) => {
+    if (isVisible.value && newContent) {
+      debouncedRender(newContent);
+    }
+  },
+  { immediate: true }
+);
+
+// 监听主题变化
+watch(() => themeStore.isDarkMode, resetRenderer);
+
+// 监听可见性变化，初始化/清理拖动
+watch(isVisible, async (visible) => {
+  if (visible) {
+    await nextTick();
+    // 初始化拖动手柄
+    const handle = resizeHandleRef.value;
+    if (handle) {
+      handle.addEventListener('mousedown', onMouseDown);
+    }
+    if (content.value) {
+      renderMarkdown(content.value);
+    }
+  } else {
+    // 清理拖动事件
+    const handle = resizeHandleRef.value;
+    if (handle) {
+      handle.removeEventListener('mousedown', onMouseDown);
+    }
+    cleanupResize();
+    
+    cancelDebounce();
+    renderedHtml.value = '';
+    lastRenderedContent = '';
+  }
+});
+
+// 组件卸载时清理
+onUnmounted(() => {
+  isDestroyed = true;
+  cancelDebounce();
+  cleanupResize();
+  lastRenderedContent = '';
+});
+</script>
+
+<template>
+  <transition name="preview-slide">
+    <div
+      v-if="isVisible"
+      ref="panelRef"
+      class="cm-markdown-preview-panel"
+      :style="panelStyle"
+    >
+      <!-- 拖动调整手柄 -->
+      <div ref="resizeHandleRef" class="cm-preview-resize-handle">
+        <div class="resize-indicator"></div>
+      </div>
+
+      <!-- 预览内容 -->
+      <div
+        ref="contentRef"
+        class="cm-preview-content markdown-body"
+        :data-theme="dataTheme"
+        @click="handleLinkClick"
+        v-html="renderedHtml"
+      ></div>
+    </div>
+  </transition>
+</template>
+
+<style scoped lang="scss">
+.cm-markdown-preview-panel {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  width: 100%;
+  min-height: 100px;
+  background: var(--bg-primary);
+  border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  z-index: 10;
+}
+
+.cm-preview-resize-handle {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 8px;
+  cursor: ns-resize;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 10;
+  background: transparent;
+  transition: background-color 0.2s ease;
+}
+
+.cm-preview-resize-handle:hover {
+  background: var(--bg-hover, rgba(255, 255, 255, 0.05));
+}
+
+.cm-preview-resize-handle.dragging {
+  background: var(--bg-hover, rgba(66, 133, 244, 0.1));
+}
+
+.resize-indicator {
+  width: 40px;
+  height: 3px;
+  border-radius: 2px;
+  background: var(--border-color, rgba(255, 255, 255, 0.2));
+  transition: background-color 0.2s ease;
+}
+
+.cm-preview-resize-handle:hover .resize-indicator {
+  background: var(--text-muted, rgba(255, 255, 255, 0.4));
+}
+
+.cm-preview-content {
+  flex: 1;
+  overflow-y: auto;
+  padding: 45px;
+  box-sizing: border-box;
+  position: relative; /* 为绝对定位的 loading/error 提供定位上下文 */
+}
+
+/* ========== macOS 窗口风格代码块（主题适配）========== */
+.cm-preview-content.markdown-body {
+  :deep(pre) {
+    position: relative;
+    padding-top: 40px !important;
+  }
+
+  /* 暗色主题 */
+  &[data-theme="dark"] {
+    :deep(pre) {
+      /* macOS 窗口顶部栏 */
+      &::before {
+        content: "";
+        position: absolute;
+        top: 0;
+        left: 0;
+        right: 0;
+        height: 28px;
+        background-color: #1c1c1e;
+        border-bottom: 1px solid rgba(48, 54, 61, 0.5);
+        border-radius: 6px 6px 0 0;
+        z-index: 1;
+      }
+
+      /* macOS 三个控制按钮 */
+      &::after {
+        content: "";
+        position: absolute;
+        top: 10px;
+        left: 12px;
+        width: 12px;
+        height: 12px;
+        border-radius: 50%;
+        background-color: #ec6a5f;
+        box-shadow: 18px 0 0 0 #f4bf4f, 36px 0 0 0 #61c554;
+        z-index: 2;
+      }
+    }
+  }
+
+  /* 亮色主题 */
+  &[data-theme="light"] {
+    :deep(pre) {
+      /* macOS 窗口顶部栏 */
+      &::before {
+        content: "";
+        position: absolute;
+        top: 0;
+        left: 0;
+        right: 0;
+        height: 28px;
+        background-color: #e8e8e8;
+        border-bottom: 1px solid #d1d1d6;
+        border-radius: 6px 6px 0 0;
+        z-index: 1;
+      }
+
+      /* macOS 三个控制按钮 */
+      &::after {
+        content: "";
+        position: absolute;
+        top: 10px;
+        left: 12px;
+        width: 12px;
+        height: 12px;
+        border-radius: 50%;
+        background-color: #ff5f57;
+        box-shadow: 18px 0 0 0 #febc2e, 36px 0 0 0 #28c840;
+        z-index: 2;
+      }
+    }
+  }
+}
+
+/* Loading 和 Error 状态 - 居中显示 */
+.cm-preview-content :deep(.markdown-loading),
+.cm-preview-content :deep(.markdown-error) {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  width: 100%;
+  height: 100%;
+  font-size: 14px;
+  color: var(--text-muted, #7d8590);
+  text-align: center;
+  margin: 0;
+  padding: 0;
+}
+
+.cm-preview-content :deep(.markdown-error) {
+  color: #f85149;
+  font-weight: 500;
+}
+
+/* 过渡动画 - 从下往上弹起 */
+.preview-slide-enter-active {
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.preview-slide-leave-active {
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.6, 1);
+}
+
+.preview-slide-enter-from {
+  transform: translateY(100%);
+  opacity: 0;
+}
+
+.preview-slide-enter-to {
+  transform: translateY(0);
+  opacity: 1;
+}
+
+.preview-slide-leave-from {
+  transform: translateY(0);
+  opacity: 1;
+}
+
+.preview-slide-leave-to {
+  transform: translateY(100%);
+  opacity: 0;
+}
+</style>
+
diff --git a/frontend/src/views/editor/extensions/markdownPreview/github-markdown.css b/frontend/src/views/editor/extensions/markdownPreview/github-markdown.css
new file mode 100644
index 0000000..d95cc85
--- /dev/null
+++ b/frontend/src/views/editor/extensions/markdownPreview/github-markdown.css
@@ -0,0 +1,1229 @@
+.markdown-body {
+  --base-size-4: 0.25rem;
+  --base-size-8: 0.5rem;
+  --base-size-16: 1rem;
+  --base-size-24: 1.5rem;
+  --base-size-40: 2.5rem;
+  --base-text-weight-normal: 400;
+  --base-text-weight-medium: 500;
+  --base-text-weight-semibold: 600;
+  --fontStack-monospace: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
+  --fgColor-accent: Highlight;
+}
+
+/* 暗色主题变量 */
+.markdown-body[data-theme="dark"] {
+    /* dark */
+    color-scheme: dark;
+    --focus-outlineColor: #1f6feb;
+    --fgColor-default: #f0f6fc;
+    --fgColor-muted: #9198a1;
+    --fgColor-accent: #4493f8;
+    --fgColor-success: #3fb950;
+    --fgColor-attention: #d29922;
+    --fgColor-danger: #f85149;
+    --fgColor-done: #ab7df8;
+    --bgColor-default: #0d1117;
+    --bgColor-muted: #151b23;
+    --bgColor-neutral-muted: #656c7633;
+    --bgColor-attention-muted: #bb800926;
+    --borderColor-default: #3d444d;
+    --borderColor-muted: #3d444db3;
+    --borderColor-neutral-muted: #3d444db3;
+    --borderColor-accent-emphasis: #1f6feb;
+    --borderColor-success-emphasis: #238636;
+    --borderColor-attention-emphasis: #9e6a03;
+    --borderColor-danger-emphasis: #da3633;
+    --borderColor-done-emphasis: #8957e5;
+    --color-prettylights-syntax-comment: #9198a1;
+    --color-prettylights-syntax-constant: #79c0ff;
+    --color-prettylights-syntax-constant-other-reference-link: #a5d6ff;
+    --color-prettylights-syntax-entity: #d2a8ff;
+    --color-prettylights-syntax-storage-modifier-import: #f0f6fc;
+    --color-prettylights-syntax-entity-tag: #7ee787;
+    --color-prettylights-syntax-keyword: #ff7b72;
+    --color-prettylights-syntax-string: #a5d6ff;
+    --color-prettylights-syntax-variable: #ffa657;
+    --color-prettylights-syntax-brackethighlighter-unmatched: #f85149;
+    --color-prettylights-syntax-brackethighlighter-angle: #9198a1;
+    --color-prettylights-syntax-invalid-illegal-text: #f0f6fc;
+    --color-prettylights-syntax-invalid-illegal-bg: #8e1519;
+    --color-prettylights-syntax-carriage-return-text: #f0f6fc;
+    --color-prettylights-syntax-carriage-return-bg: #b62324;
+    --color-prettylights-syntax-string-regexp: #7ee787;
+    --color-prettylights-syntax-markup-list: #f2cc60;
+    --color-prettylights-syntax-markup-heading: #1f6feb;
+    --color-prettylights-syntax-markup-italic: #f0f6fc;
+    --color-prettylights-syntax-markup-bold: #f0f6fc;
+    --color-prettylights-syntax-markup-deleted-text: #ffdcd7;
+    --color-prettylights-syntax-markup-deleted-bg: #67060c;
+    --color-prettylights-syntax-markup-inserted-text: #aff5b4;
+    --color-prettylights-syntax-markup-inserted-bg: #033a16;
+    --color-prettylights-syntax-markup-changed-text: #ffdfb6;
+    --color-prettylights-syntax-markup-changed-bg: #5a1e02;
+    --color-prettylights-syntax-markup-ignored-text: #f0f6fc;
+    --color-prettylights-syntax-markup-ignored-bg: #1158c7;
+    --color-prettylights-syntax-meta-diff-range: #d2a8ff;
+    --color-prettylights-syntax-sublimelinter-gutter-mark: #3d444d;
+  }
+
+/* 亮色主题变量 */
+.markdown-body[data-theme="light"] {
+    /* light */
+    color-scheme: light;
+    --focus-outlineColor: #0969da;
+    --fgColor-default: #1f2328;
+    --fgColor-muted: #59636e;
+    --fgColor-accent: #0969da;
+    --fgColor-success: #1a7f37;
+    --fgColor-attention: #9a6700;
+    --fgColor-danger: #d1242f;
+    --fgColor-done: #8250df;
+    --bgColor-default: #ffffff;
+    --bgColor-muted: #f6f8fa;
+    --bgColor-neutral-muted: #818b981f;
+    --bgColor-attention-muted: #fff8c5;
+    --borderColor-default: #d1d9e0;
+    --borderColor-muted: #d1d9e0b3;
+    --borderColor-neutral-muted: #d1d9e0b3;
+    --borderColor-accent-emphasis: #0969da;
+    --borderColor-success-emphasis: #1a7f37;
+    --borderColor-attention-emphasis: #9a6700;
+    --borderColor-danger-emphasis: #cf222e;
+    --borderColor-done-emphasis: #8250df;
+    --color-prettylights-syntax-comment: #59636e;
+    --color-prettylights-syntax-constant: #0550ae;
+    --color-prettylights-syntax-constant-other-reference-link: #0a3069;
+    --color-prettylights-syntax-entity: #6639ba;
+    --color-prettylights-syntax-storage-modifier-import: #1f2328;
+    --color-prettylights-syntax-entity-tag: #0550ae;
+    --color-prettylights-syntax-keyword: #cf222e;
+    --color-prettylights-syntax-string: #0a3069;
+    --color-prettylights-syntax-variable: #953800;
+    --color-prettylights-syntax-brackethighlighter-unmatched: #82071e;
+    --color-prettylights-syntax-brackethighlighter-angle: #59636e;
+    --color-prettylights-syntax-invalid-illegal-text: #f6f8fa;
+    --color-prettylights-syntax-invalid-illegal-bg: #82071e;
+    --color-prettylights-syntax-carriage-return-text: #f6f8fa;
+    --color-prettylights-syntax-carriage-return-bg: #cf222e;
+    --color-prettylights-syntax-string-regexp: #116329;
+    --color-prettylights-syntax-markup-list: #3b2300;
+    --color-prettylights-syntax-markup-heading: #0550ae;
+    --color-prettylights-syntax-markup-italic: #1f2328;
+    --color-prettylights-syntax-markup-bold: #1f2328;
+    --color-prettylights-syntax-markup-deleted-text: #82071e;
+    --color-prettylights-syntax-markup-deleted-bg: #ffebe9;
+    --color-prettylights-syntax-markup-inserted-text: #116329;
+    --color-prettylights-syntax-markup-inserted-bg: #dafbe1;
+    --color-prettylights-syntax-markup-changed-text: #953800;
+    --color-prettylights-syntax-markup-changed-bg: #ffd8b5;
+    --color-prettylights-syntax-markup-ignored-text: #d1d9e0;
+    --color-prettylights-syntax-markup-ignored-bg: #0550ae;
+    --color-prettylights-syntax-meta-diff-range: #8250df;
+    --color-prettylights-syntax-sublimelinter-gutter-mark: #818b98;
+  }
+
+
+.markdown-body {
+  -ms-text-size-adjust: 100%;
+  -webkit-text-size-adjust: 100%;
+  margin: 0;
+  color: var(--fgColor-default);
+  background-color: var(--bgColor-default);
+  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";
+  font-size: 16px;
+  line-height: 1.5;
+  word-wrap: break-word;
+}
+
+.markdown-body .octicon {
+  display: inline-block;
+  fill: currentColor;
+  vertical-align: text-bottom;
+}
+
+.markdown-body h1:hover .anchor .octicon-link:before,
+.markdown-body h2:hover .anchor .octicon-link:before,
+.markdown-body h3:hover .anchor .octicon-link:before,
+.markdown-body h4:hover .anchor .octicon-link:before,
+.markdown-body h5:hover .anchor .octicon-link:before,
+.markdown-body h6:hover .anchor .octicon-link:before {
+  width: 16px;
+  height: 16px;
+  content: ' ';
+  display: inline-block;
+  background-color: currentColor;
+  -webkit-mask-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' version='1.1' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg>");
+  mask-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' version='1.1' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg>");
+}
+
+.markdown-body details,
+.markdown-body figcaption,
+.markdown-body figure {
+  display: block;
+}
+
+.markdown-body summary {
+  display: list-item;
+}
+
+.markdown-body [hidden] {
+  display: none !important;
+}
+
+.markdown-body a {
+  background-color: transparent;
+  color: var(--fgColor-accent);
+  text-decoration: none;
+}
+
+.markdown-body abbr[title] {
+  border-bottom: none;
+  -webkit-text-decoration: underline dotted;
+  text-decoration: underline dotted;
+}
+
+.markdown-body b,
+.markdown-body strong {
+  font-weight: var(--base-text-weight-semibold, 600);
+}
+
+.markdown-body dfn {
+  font-style: italic;
+}
+
+.markdown-body h1 {
+  margin: .67em 0;
+  font-weight: var(--base-text-weight-semibold, 600);
+  padding-bottom: .3em;
+  font-size: 2em;
+  border-bottom: 1px solid var(--borderColor-muted);
+}
+
+.markdown-body mark {
+  background-color: var(--bgColor-attention-muted);
+  color: var(--fgColor-default);
+}
+
+.markdown-body small {
+  font-size: 90%;
+}
+
+.markdown-body sub,
+.markdown-body sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+.markdown-body sub {
+  bottom: -0.25em;
+}
+
+.markdown-body sup {
+  top: -0.5em;
+}
+
+.markdown-body img {
+  border-style: none;
+  max-width: 100%;
+  box-sizing: content-box;
+}
+
+.markdown-body code,
+.markdown-body kbd,
+.markdown-body pre,
+.markdown-body samp {
+  font-family: monospace;
+  font-size: 1em;
+}
+
+.markdown-body figure {
+  margin: 1em var(--base-size-40);
+}
+
+.markdown-body hr {
+  box-sizing: content-box;
+  overflow: hidden;
+  background: transparent;
+  border-bottom: 1px solid var(--borderColor-muted);
+  height: .25em;
+  padding: 0;
+  margin: var(--base-size-24) 0;
+  background-color: var(--borderColor-default);
+  border: 0;
+}
+
+.markdown-body input {
+  font: inherit;
+  margin: 0;
+  overflow: visible;
+  font-family: inherit;
+  font-size: inherit;
+  line-height: inherit;
+}
+
+.markdown-body [type=button],
+.markdown-body [type=reset],
+.markdown-body [type=submit] {
+  -webkit-appearance: button;
+  appearance: button;
+}
+
+.markdown-body [type=checkbox],
+.markdown-body [type=radio] {
+  box-sizing: border-box;
+  padding: 0;
+}
+
+.markdown-body [type=number]::-webkit-inner-spin-button,
+.markdown-body [type=number]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+.markdown-body [type=search]::-webkit-search-cancel-button,
+.markdown-body [type=search]::-webkit-search-decoration {
+  -webkit-appearance: none;
+  appearance: none;
+}
+
+.markdown-body ::-webkit-input-placeholder {
+  color: inherit;
+  opacity: .54;
+}
+
+.markdown-body ::-webkit-file-upload-button {
+  -webkit-appearance: button;
+  appearance: button;
+  font: inherit;
+}
+
+.markdown-body a:hover {
+  text-decoration: underline;
+}
+
+.markdown-body ::placeholder {
+  color: var(--fgColor-muted);
+  opacity: 1;
+}
+
+.markdown-body hr::before {
+  display: table;
+  content: "";
+}
+
+.markdown-body hr::after {
+  display: table;
+  clear: both;
+  content: "";
+}
+
+.markdown-body table {
+  border-spacing: 0;
+  border-collapse: collapse;
+  display: block;
+  width: max-content;
+  max-width: 100%;
+  overflow: auto;
+  font-variant: tabular-nums;
+}
+
+.markdown-body td,
+.markdown-body th {
+  padding: 0;
+}
+
+.markdown-body details summary {
+  cursor: pointer;
+}
+
+.markdown-body a:focus,
+.markdown-body [role=button]:focus,
+.markdown-body input[type=radio]:focus,
+.markdown-body input[type=checkbox]:focus {
+  outline: 2px solid var(--focus-outlineColor);
+  outline-offset: -2px;
+  box-shadow: none;
+}
+
+.markdown-body a:focus:not(:focus-visible),
+.markdown-body [role=button]:focus:not(:focus-visible),
+.markdown-body input[type=radio]:focus:not(:focus-visible),
+.markdown-body input[type=checkbox]:focus:not(:focus-visible) {
+  outline: solid 1px transparent;
+}
+
+.markdown-body a:focus-visible,
+.markdown-body [role=button]:focus-visible,
+.markdown-body input[type=radio]:focus-visible,
+.markdown-body input[type=checkbox]:focus-visible {
+  outline: 2px solid var(--focus-outlineColor);
+  outline-offset: -2px;
+  box-shadow: none;
+}
+
+.markdown-body a:not([class]):focus,
+.markdown-body a:not([class]):focus-visible,
+.markdown-body input[type=radio]:focus,
+.markdown-body input[type=radio]:focus-visible,
+.markdown-body input[type=checkbox]:focus,
+.markdown-body input[type=checkbox]:focus-visible {
+  outline-offset: 0;
+}
+
+.markdown-body kbd {
+  display: inline-block;
+  padding: var(--base-size-4);
+  font: 11px var(--fontStack-monospace, ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace);
+  line-height: 10px;
+  color: var(--fgColor-default);
+  vertical-align: middle;
+  background-color: var(--bgColor-muted);
+  border: solid 1px var(--borderColor-neutral-muted);
+  border-bottom-color: var(--borderColor-neutral-muted);
+  border-radius: 6px;
+  box-shadow: inset 0 -1px 0 var(--borderColor-neutral-muted);
+}
+
+.markdown-body h1,
+.markdown-body h2,
+.markdown-body h3,
+.markdown-body h4,
+.markdown-body h5,
+.markdown-body h6 {
+  margin-top: var(--base-size-24);
+  margin-bottom: var(--base-size-16);
+  font-weight: var(--base-text-weight-semibold, 600);
+  line-height: 1.25;
+}
+
+.markdown-body h2 {
+  font-weight: var(--base-text-weight-semibold, 600);
+  padding-bottom: .3em;
+  font-size: 1.5em;
+  border-bottom: 1px solid var(--borderColor-muted);
+}
+
+.markdown-body h3 {
+  font-weight: var(--base-text-weight-semibold, 600);
+  font-size: 1.25em;
+}
+
+.markdown-body h4 {
+  font-weight: var(--base-text-weight-semibold, 600);
+  font-size: 1em;
+}
+
+.markdown-body h5 {
+  font-weight: var(--base-text-weight-semibold, 600);
+  font-size: .875em;
+}
+
+.markdown-body h6 {
+  font-weight: var(--base-text-weight-semibold, 600);
+  font-size: .85em;
+  color: var(--fgColor-muted);
+}
+
+.markdown-body p {
+  margin-top: 0;
+  margin-bottom: 10px;
+}
+
+.markdown-body blockquote {
+  margin: 0;
+  padding: 0 1em;
+  color: var(--fgColor-muted);
+  border-left: .25em solid var(--borderColor-default);
+}
+
+.markdown-body ul,
+.markdown-body ol {
+  margin-top: 0;
+  margin-bottom: 0;
+  padding-left: 2em;
+}
+
+.markdown-body ol ol,
+.markdown-body ul ol {
+  list-style-type: lower-roman;
+}
+
+.markdown-body ul ul ol,
+.markdown-body ul ol ol,
+.markdown-body ol ul ol,
+.markdown-body ol ol ol {
+  list-style-type: lower-alpha;
+}
+
+.markdown-body dd {
+  margin-left: 0;
+}
+
+.markdown-body tt,
+.markdown-body code,
+.markdown-body samp {
+  font-family: var(--fontStack-monospace, ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace);
+  font-size: 12px;
+}
+
+.markdown-body pre {
+  margin-top: 0;
+  margin-bottom: 0;
+  font-family: var(--fontStack-monospace, ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace);
+  font-size: 12px;
+  word-wrap: normal;
+}
+
+.markdown-body .octicon {
+  display: inline-block;
+  overflow: visible !important;
+  vertical-align: text-bottom;
+  fill: currentColor;
+}
+
+.markdown-body input::-webkit-outer-spin-button,
+.markdown-body input::-webkit-inner-spin-button {
+  margin: 0;
+  appearance: none;
+}
+
+.markdown-body .mr-2 {
+  margin-right: var(--base-size-8, 8px) !important;
+}
+
+.markdown-body::before {
+  display: table;
+  content: "";
+}
+
+.markdown-body::after {
+  display: table;
+  clear: both;
+  content: "";
+}
+
+.markdown-body>*:first-child {
+  margin-top: 0 !important;
+}
+
+.markdown-body>*:last-child {
+  margin-bottom: 0 !important;
+}
+
+.markdown-body a:not([href]) {
+  color: inherit;
+  text-decoration: none;
+}
+
+.markdown-body .absent {
+  color: var(--fgColor-danger);
+}
+
+.markdown-body .anchor {
+  float: left;
+  padding-right: var(--base-size-4);
+  margin-left: -20px;
+  line-height: 1;
+}
+
+.markdown-body .anchor:focus {
+  outline: none;
+}
+
+.markdown-body p,
+.markdown-body blockquote,
+.markdown-body ul,
+.markdown-body ol,
+.markdown-body dl,
+.markdown-body table,
+.markdown-body pre,
+.markdown-body details {
+  margin-top: 0;
+  margin-bottom: var(--base-size-16);
+}
+
+.markdown-body blockquote>:first-child {
+  margin-top: 0;
+}
+
+.markdown-body blockquote>:last-child {
+  margin-bottom: 0;
+}
+
+.markdown-body h1 .octicon-link,
+.markdown-body h2 .octicon-link,
+.markdown-body h3 .octicon-link,
+.markdown-body h4 .octicon-link,
+.markdown-body h5 .octicon-link,
+.markdown-body h6 .octicon-link {
+  color: var(--fgColor-default);
+  vertical-align: middle;
+  visibility: hidden;
+}
+
+.markdown-body h1:hover .anchor,
+.markdown-body h2:hover .anchor,
+.markdown-body h3:hover .anchor,
+.markdown-body h4:hover .anchor,
+.markdown-body h5:hover .anchor,
+.markdown-body h6:hover .anchor {
+  text-decoration: none;
+}
+
+.markdown-body h1:hover .anchor .octicon-link,
+.markdown-body h2:hover .anchor .octicon-link,
+.markdown-body h3:hover .anchor .octicon-link,
+.markdown-body h4:hover .anchor .octicon-link,
+.markdown-body h5:hover .anchor .octicon-link,
+.markdown-body h6:hover .anchor .octicon-link {
+  visibility: visible;
+}
+
+.markdown-body h1 tt,
+.markdown-body h1 code,
+.markdown-body h2 tt,
+.markdown-body h2 code,
+.markdown-body h3 tt,
+.markdown-body h3 code,
+.markdown-body h4 tt,
+.markdown-body h4 code,
+.markdown-body h5 tt,
+.markdown-body h5 code,
+.markdown-body h6 tt,
+.markdown-body h6 code {
+  padding: 0 .2em;
+  font-size: inherit;
+}
+
+.markdown-body summary h1,
+.markdown-body summary h2,
+.markdown-body summary h3,
+.markdown-body summary h4,
+.markdown-body summary h5,
+.markdown-body summary h6 {
+  display: inline-block;
+}
+
+.markdown-body summary h1 .anchor,
+.markdown-body summary h2 .anchor,
+.markdown-body summary h3 .anchor,
+.markdown-body summary h4 .anchor,
+.markdown-body summary h5 .anchor,
+.markdown-body summary h6 .anchor {
+  margin-left: -40px;
+}
+
+.markdown-body summary h1,
+.markdown-body summary h2 {
+  padding-bottom: 0;
+  border-bottom: 0;
+}
+
+.markdown-body ul.no-list,
+.markdown-body ol.no-list {
+  padding: 0;
+  list-style-type: none;
+}
+
+.markdown-body ol[type="a s"] {
+  list-style-type: lower-alpha;
+}
+
+.markdown-body ol[type="A s"] {
+  list-style-type: upper-alpha;
+}
+
+.markdown-body ol[type="i s"] {
+  list-style-type: lower-roman;
+}
+
+.markdown-body ol[type="I s"] {
+  list-style-type: upper-roman;
+}
+
+.markdown-body ol[type="1"] {
+  list-style-type: decimal;
+}
+
+.markdown-body div>ol:not([type]) {
+  list-style-type: decimal;
+}
+
+.markdown-body ul ul,
+.markdown-body ul ol,
+.markdown-body ol ol,
+.markdown-body ol ul {
+  margin-top: 0;
+  margin-bottom: 0;
+}
+
+.markdown-body li>p {
+  margin-top: var(--base-size-16);
+}
+
+.markdown-body li+li {
+  margin-top: .25em;
+}
+
+.markdown-body dl {
+  padding: 0;
+}
+
+.markdown-body dl dt {
+  padding: 0;
+  margin-top: var(--base-size-16);
+  font-size: 1em;
+  font-style: italic;
+  font-weight: var(--base-text-weight-semibold, 600);
+}
+
+.markdown-body dl dd {
+  padding: 0 var(--base-size-16);
+  margin-bottom: var(--base-size-16);
+}
+
+.markdown-body table th {
+  font-weight: var(--base-text-weight-semibold, 600);
+}
+
+.markdown-body table th,
+.markdown-body table td {
+  padding: 6px 13px;
+  border: 1px solid var(--borderColor-default);
+}
+
+.markdown-body table td>:last-child {
+  margin-bottom: 0;
+}
+
+.markdown-body table tr {
+  background-color: var(--bgColor-default);
+  border-top: 1px solid var(--borderColor-muted);
+}
+
+.markdown-body table tr:nth-child(2n) {
+  background-color: var(--bgColor-muted);
+}
+
+.markdown-body table img {
+  background-color: transparent;
+}
+
+.markdown-body img[align=right] {
+  padding-left: 20px;
+}
+
+.markdown-body img[align=left] {
+  padding-right: 20px;
+}
+
+.markdown-body .emoji {
+  max-width: none;
+  vertical-align: text-top;
+  background-color: transparent;
+}
+
+.markdown-body span.frame {
+  display: block;
+  overflow: hidden;
+}
+
+.markdown-body span.frame>span {
+  display: block;
+  float: left;
+  width: auto;
+  padding: 7px;
+  margin: 13px 0 0;
+  overflow: hidden;
+  border: 1px solid var(--borderColor-default);
+}
+
+.markdown-body span.frame span img {
+  display: block;
+  float: left;
+}
+
+.markdown-body span.frame span span {
+  display: block;
+  padding: 5px 0 0;
+  clear: both;
+  color: var(--fgColor-default);
+}
+
+.markdown-body span.align-center {
+  display: block;
+  overflow: hidden;
+  clear: both;
+}
+
+.markdown-body span.align-center>span {
+  display: block;
+  margin: 13px auto 0;
+  overflow: hidden;
+  text-align: center;
+}
+
+.markdown-body span.align-center span img {
+  margin: 0 auto;
+  text-align: center;
+}
+
+.markdown-body span.align-right {
+  display: block;
+  overflow: hidden;
+  clear: both;
+}
+
+.markdown-body span.align-right>span {
+  display: block;
+  margin: 13px 0 0;
+  overflow: hidden;
+  text-align: right;
+}
+
+.markdown-body span.align-right span img {
+  margin: 0;
+  text-align: right;
+}
+
+.markdown-body span.float-left {
+  display: block;
+  float: left;
+  margin-right: 13px;
+  overflow: hidden;
+}
+
+.markdown-body span.float-left span {
+  margin: 13px 0 0;
+}
+
+.markdown-body span.float-right {
+  display: block;
+  float: right;
+  margin-left: 13px;
+  overflow: hidden;
+}
+
+.markdown-body span.float-right>span {
+  display: block;
+  margin: 13px auto 0;
+  overflow: hidden;
+  text-align: right;
+}
+
+.markdown-body code,
+.markdown-body tt {
+  padding: .2em .4em;
+  margin: 0;
+  font-size: 85%;
+  white-space: break-spaces;
+  background-color: var(--bgColor-neutral-muted);
+  border-radius: 6px;
+}
+
+.markdown-body code br,
+.markdown-body tt br {
+  display: none;
+}
+
+.markdown-body del code {
+  text-decoration: inherit;
+}
+
+.markdown-body samp {
+  font-size: 85%;
+}
+
+.markdown-body pre code {
+  font-size: 100%;
+}
+
+.markdown-body pre>code {
+  padding: 0;
+  margin: 0;
+  word-break: normal;
+  white-space: pre;
+  background: transparent;
+  border: 0;
+}
+
+.markdown-body .highlight {
+  margin-bottom: var(--base-size-16);
+}
+
+.markdown-body .highlight pre {
+  margin-bottom: 0;
+  word-break: normal;
+}
+
+.markdown-body .highlight pre,
+.markdown-body pre {
+  padding: var(--base-size-16);
+  overflow: auto;
+  font-size: 85%;
+  line-height: 1.45;
+  color: var(--fgColor-default);
+  background-color: var(--bgColor-muted);
+  border-radius: 6px;
+}
+
+.markdown-body pre code,
+.markdown-body pre tt {
+  display: inline;
+  max-width: fit-content;
+  padding: 0;
+  margin: 0;
+  overflow: visible;
+  line-height: inherit;
+  word-wrap: normal;
+  background-color: transparent;
+  border: 0;
+}
+
+.markdown-body .csv-data td,
+.markdown-body .csv-data th {
+  padding: 5px;
+  overflow: hidden;
+  font-size: 12px;
+  line-height: 1;
+  text-align: left;
+  white-space: nowrap;
+}
+
+.markdown-body .csv-data .blob-num {
+  padding: 10px var(--base-size-8) 9px;
+  text-align: right;
+  background: var(--bgColor-default);
+  border: 0;
+}
+
+.markdown-body .csv-data tr {
+  border-top: 0;
+}
+
+.markdown-body .csv-data th {
+  font-weight: var(--base-text-weight-semibold, 600);
+  background: var(--bgColor-muted);
+  border-top: 0;
+}
+
+.markdown-body [data-footnote-ref]::before {
+  content: "[";
+}
+
+.markdown-body [data-footnote-ref]::after {
+  content: "]";
+}
+
+.markdown-body .footnotes {
+  font-size: 12px;
+  color: var(--fgColor-muted);
+  border-top: 1px solid var(--borderColor-default);
+}
+
+.markdown-body .footnotes ol {
+  padding-left: var(--base-size-16);
+}
+
+.markdown-body .footnotes ol ul {
+  display: inline-block;
+  padding-left: var(--base-size-16);
+  margin-top: var(--base-size-16);
+}
+
+.markdown-body .footnotes li {
+  position: relative;
+}
+
+.markdown-body .footnotes li:target::before {
+  position: absolute;
+  top: calc(var(--base-size-8)*-1);
+  right: calc(var(--base-size-8)*-1);
+  bottom: calc(var(--base-size-8)*-1);
+  left: calc(var(--base-size-24)*-1);
+  pointer-events: none;
+  content: "";
+  border: 2px solid var(--borderColor-accent-emphasis);
+  border-radius: 6px;
+}
+
+.markdown-body .footnotes li:target {
+  color: var(--fgColor-default);
+}
+
+.markdown-body .footnotes .data-footnote-backref g-emoji {
+  font-family: monospace;
+}
+
+.markdown-body body:has(:modal) {
+  padding-right: var(--dialog-scrollgutter) !important;
+}
+
+.markdown-body .pl-c {
+  color: var(--color-prettylights-syntax-comment);
+}
+
+.markdown-body .pl-c1,
+.markdown-body .pl-s .pl-v {
+  color: var(--color-prettylights-syntax-constant);
+}
+
+.markdown-body .pl-e,
+.markdown-body .pl-en {
+  color: var(--color-prettylights-syntax-entity);
+}
+
+.markdown-body .pl-smi,
+.markdown-body .pl-s .pl-s1 {
+  color: var(--color-prettylights-syntax-storage-modifier-import);
+}
+
+.markdown-body .pl-ent {
+  color: var(--color-prettylights-syntax-entity-tag);
+}
+
+.markdown-body .pl-k {
+  color: var(--color-prettylights-syntax-keyword);
+}
+
+.markdown-body .pl-s,
+.markdown-body .pl-pds,
+.markdown-body .pl-s .pl-pse .pl-s1,
+.markdown-body .pl-sr,
+.markdown-body .pl-sr .pl-cce,
+.markdown-body .pl-sr .pl-sre,
+.markdown-body .pl-sr .pl-sra {
+  color: var(--color-prettylights-syntax-string);
+}
+
+.markdown-body .pl-v,
+.markdown-body .pl-smw {
+  color: var(--color-prettylights-syntax-variable);
+}
+
+.markdown-body .pl-bu {
+  color: var(--color-prettylights-syntax-brackethighlighter-unmatched);
+}
+
+.markdown-body .pl-ii {
+  color: var(--color-prettylights-syntax-invalid-illegal-text);
+  background-color: var(--color-prettylights-syntax-invalid-illegal-bg);
+}
+
+.markdown-body .pl-c2 {
+  color: var(--color-prettylights-syntax-carriage-return-text);
+  background-color: var(--color-prettylights-syntax-carriage-return-bg);
+}
+
+.markdown-body .pl-sr .pl-cce {
+  font-weight: bold;
+  color: var(--color-prettylights-syntax-string-regexp);
+}
+
+.markdown-body .pl-ml {
+  color: var(--color-prettylights-syntax-markup-list);
+}
+
+.markdown-body .pl-mh,
+.markdown-body .pl-mh .pl-en,
+.markdown-body .pl-ms {
+  font-weight: bold;
+  color: var(--color-prettylights-syntax-markup-heading);
+}
+
+.markdown-body .pl-mi {
+  font-style: italic;
+  color: var(--color-prettylights-syntax-markup-italic);
+}
+
+.markdown-body .pl-mb {
+  font-weight: bold;
+  color: var(--color-prettylights-syntax-markup-bold);
+}
+
+.markdown-body .pl-md {
+  color: var(--color-prettylights-syntax-markup-deleted-text);
+  background-color: var(--color-prettylights-syntax-markup-deleted-bg);
+}
+
+.markdown-body .pl-mi1 {
+  color: var(--color-prettylights-syntax-markup-inserted-text);
+  background-color: var(--color-prettylights-syntax-markup-inserted-bg);
+}
+
+.markdown-body .pl-mc {
+  color: var(--color-prettylights-syntax-markup-changed-text);
+  background-color: var(--color-prettylights-syntax-markup-changed-bg);
+}
+
+.markdown-body .pl-mi2 {
+  color: var(--color-prettylights-syntax-markup-ignored-text);
+  background-color: var(--color-prettylights-syntax-markup-ignored-bg);
+}
+
+.markdown-body .pl-mdr {
+  font-weight: bold;
+  color: var(--color-prettylights-syntax-meta-diff-range);
+}
+
+.markdown-body .pl-ba {
+  color: var(--color-prettylights-syntax-brackethighlighter-angle);
+}
+
+.markdown-body .pl-sg {
+  color: var(--color-prettylights-syntax-sublimelinter-gutter-mark);
+}
+
+.markdown-body .pl-corl {
+  text-decoration: underline;
+  color: var(--color-prettylights-syntax-constant-other-reference-link);
+}
+
+.markdown-body [role=button]:focus:not(:focus-visible),
+.markdown-body [role=tabpanel][tabindex="0"]:focus:not(:focus-visible),
+.markdown-body button:focus:not(:focus-visible),
+.markdown-body summary:focus:not(:focus-visible),
+.markdown-body a:focus:not(:focus-visible) {
+  outline: none;
+  box-shadow: none;
+}
+
+.markdown-body [tabindex="0"]:focus:not(:focus-visible),
+.markdown-body details-dialog:focus:not(:focus-visible) {
+  outline: none;
+}
+
+.markdown-body g-emoji {
+  display: inline-block;
+  min-width: 1ch;
+  font-family: "Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
+  font-size: 1em;
+  font-style: normal !important;
+  font-weight: var(--base-text-weight-normal, 400);
+  line-height: 1;
+  vertical-align: -0.075em;
+}
+
+.markdown-body g-emoji img {
+  width: 1em;
+  height: 1em;
+}
+
+.markdown-body .task-list-item {
+  list-style-type: none;
+}
+
+.markdown-body .task-list-item label {
+  font-weight: var(--base-text-weight-normal, 400);
+}
+
+.markdown-body .task-list-item.enabled label {
+  cursor: pointer;
+}
+
+.markdown-body .task-list-item+.task-list-item {
+  margin-top: var(--base-size-4);
+}
+
+.markdown-body .task-list-item .handle {
+  display: none;
+}
+
+.markdown-body .task-list-item-checkbox {
+  margin: 0 .2em .25em -1.4em;
+  vertical-align: middle;
+}
+
+.markdown-body ul:dir(rtl) .task-list-item-checkbox {
+  margin: 0 -1.6em .25em .2em;
+}
+
+.markdown-body ol:dir(rtl) .task-list-item-checkbox {
+  margin: 0 -1.6em .25em .2em;
+}
+
+.markdown-body .contains-task-list:hover .task-list-item-convert-container,
+.markdown-body .contains-task-list:focus-within .task-list-item-convert-container {
+  display: block;
+  width: auto;
+  height: 24px;
+  overflow: visible;
+  clip: auto;
+}
+
+.markdown-body ::-webkit-calendar-picker-indicator {
+  filter: invert(50%);
+}
+
+.markdown-body .markdown-alert {
+  padding: var(--base-size-8) var(--base-size-16);
+  margin-bottom: var(--base-size-16);
+  color: inherit;
+  border-left: .25em solid var(--borderColor-default);
+}
+
+.markdown-body .markdown-alert>:first-child {
+  margin-top: 0;
+}
+
+.markdown-body .markdown-alert>:last-child {
+  margin-bottom: 0;
+}
+
+.markdown-body .markdown-alert .markdown-alert-title {
+  display: flex;
+  font-weight: var(--base-text-weight-medium, 500);
+  align-items: center;
+  line-height: 1;
+}
+
+.markdown-body .markdown-alert.markdown-alert-note {
+  border-left-color: var(--borderColor-accent-emphasis);
+}
+
+.markdown-body .markdown-alert.markdown-alert-note .markdown-alert-title {
+  color: var(--fgColor-accent);
+}
+
+.markdown-body .markdown-alert.markdown-alert-important {
+  border-left-color: var(--borderColor-done-emphasis);
+}
+
+.markdown-body .markdown-alert.markdown-alert-important .markdown-alert-title {
+  color: var(--fgColor-done);
+}
+
+.markdown-body .markdown-alert.markdown-alert-warning {
+  border-left-color: var(--borderColor-attention-emphasis);
+}
+
+.markdown-body .markdown-alert.markdown-alert-warning .markdown-alert-title {
+  color: var(--fgColor-attention);
+}
+
+.markdown-body .markdown-alert.markdown-alert-tip {
+  border-left-color: var(--borderColor-success-emphasis);
+}
+
+.markdown-body .markdown-alert.markdown-alert-tip .markdown-alert-title {
+  color: var(--fgColor-success);
+}
+
+.markdown-body .markdown-alert.markdown-alert-caution {
+  border-left-color: var(--borderColor-danger-emphasis);
+}
+
+.markdown-body .markdown-alert.markdown-alert-caution .markdown-alert-title {
+  color: var(--fgColor-danger);
+}
+
+.markdown-body>*:first-child>.heading-element:first-child {
+  margin-top: 0 !important;
+}
+
+.markdown-body .highlight pre:has(+.zeroclipboard-container) {
+  min-height: 52px;
+}
+
diff --git a/frontend/src/views/editor/extensions/markdownPreview/index.ts b/frontend/src/views/editor/extensions/markdownPreview/index.ts
index a927001..224a2c4 100644
--- a/frontend/src/views/editor/extensions/markdownPreview/index.ts
+++ b/frontend/src/views/editor/extensions/markdownPreview/index.ts
@@ -1,22 +1,14 @@
-/**
- * Markdown 预览扩展主入口
- */
-import { EditorView } from "@codemirror/view";
-import { Compartment } from "@codemirror/state";
-import { useThemeStore } from "@/stores/themeStore";
-import { usePanelStore } from "@/stores/panelStore";
+import { EditorView, ViewUpdate, ViewPlugin } from "@codemirror/view";
+import { Extension } from "@codemirror/state";
 import { useDocumentStore } from "@/stores/documentStore";
 import { getActiveNoteBlock } from "../codeblock/state";
-import { createMarkdownPreviewTheme } from "./styles";
-import { previewPanelState, previewPanelPlugin, togglePreview, closePreviewWithAnimation } from "./state";
+import { markdownPreviewManager } from "./manager";
 
 /**
  * 切换预览面板的命令
  */
 export function toggleMarkdownPreview(view: EditorView): boolean {
-  const panelStore = usePanelStore();
   const documentStore = useDocumentStore();
-  const currentState = view.state.field(previewPanelState, false);
   const activeBlock = getActiveNoteBlock(view.state as any);
   
   // 如果当前没有激活的 Markdown 块，不执行操作
@@ -30,53 +22,84 @@ export function toggleMarkdownPreview(view: EditorView): boolean {
     return false;
   }
   
-  // 如果预览面板已打开（无论预览的是不是当前块），关闭预览
-  if (panelStore.markdownPreview.isOpen && !panelStore.markdownPreview.isClosing) {
-    // 使用带动画的关闭函数
-    closePreviewWithAnimation(view);
+  // 切换预览状态
+  if (markdownPreviewManager.isVisible()) {
+    markdownPreviewManager.hide();
   } else {
-    // 否则，打开当前块的预览
-    view.dispatch({
-      effects: togglePreview.of({
-        documentId: currentDocumentId,
-        blockFrom: activeBlock.content.from,
-        blockTo: activeBlock.content.to
-      })
-    });
-    
-    // 注意：store 状态由 ViewPlugin 在面板创建成功后更新
+    markdownPreviewManager.show(
+      view,
+      currentDocumentId,
+      activeBlock.content.from,
+      activeBlock.content.to
+    );
   }
 
   return true;
 }
 
+/**
+ * 预览同步插件
+ */
+const previewSyncPlugin = ViewPlugin.fromClass(
+  class {
+    constructor(private view: EditorView) {}
+
+    update(update: ViewUpdate) {
+      // 只在预览可见时处理
+      if (!markdownPreviewManager.isVisible()) {
+        return;
+      }
+
+      const documentStore = useDocumentStore();
+      const currentDocumentId = documentStore.currentDocumentId;
+      const previewDocId = markdownPreviewManager.getCurrentDocumentId();
+
+      // 如果切换了文档，关闭预览
+      if (currentDocumentId !== previewDocId) {
+        markdownPreviewManager.hide();
+        return;
+      }
+
+      // 文档内容改变时，更新预览
+      if (update.docChanged) {
+        const activeBlock = getActiveNoteBlock(update.state as any);
+        
+        // 如果不再是 Markdown 块，关闭预览
+        if (!activeBlock || activeBlock.language.name.toLowerCase() !== 'md') {
+          markdownPreviewManager.hide();
+          return;
+        }
+
+        const range = markdownPreviewManager.getCurrentBlockRange();
+        
+        // 如果切换到其他块，关闭预览
+        if (range && activeBlock.content.from !== range.from) {
+          markdownPreviewManager.hide();
+          return;
+        }
+
+        // 更新预览内容
+        const newContent = update.state.doc.sliceString(
+          activeBlock.content.from,
+          activeBlock.content.to
+        );
+        markdownPreviewManager.updateContent(
+          newContent,
+          activeBlock.content.from,
+          activeBlock.content.to
+        );
+      }
+    }
+
+    destroy() {
+      markdownPreviewManager.destroy();
+    }
+  }
+);
+
 /**
  * 导出 Markdown 预览扩展
  */
-const previewThemeCompartment = new Compartment();
-
-const buildPreviewTheme = () => {
-  const themeStore = useThemeStore();
-  const colors = themeStore.currentColors;
-  return colors ? createMarkdownPreviewTheme(colors) : EditorView.baseTheme({});
-};
-
-export function markdownPreviewExtension() {
-  return [
-    previewPanelState,
-    previewPanelPlugin,
-    previewThemeCompartment.of(buildPreviewTheme())
-  ];
-}
-
-export function updateMarkdownPreviewTheme(view: EditorView): void {
-  if (!view?.dispatch) return;
-
-  try {
-    view.dispatch({
-      effects: previewThemeCompartment.reconfigure(buildPreviewTheme())
-    });
-  } catch (error) {
-    console.error("Failed to update markdown preview theme", error);
-  }
+export function markdownPreviewExtension(): Extension {
+  return [previewSyncPlugin];
 }
diff --git a/frontend/src/views/editor/extensions/markdownPreview/manager.ts b/frontend/src/views/editor/extensions/markdownPreview/manager.ts
new file mode 100644
index 0000000..8b60a1e
--- /dev/null
+++ b/frontend/src/views/editor/extensions/markdownPreview/manager.ts
@@ -0,0 +1,161 @@
+import type { EditorView } from '@codemirror/view';
+import { shallowRef, type ShallowRef } from 'vue';
+
+/**
+ * 预览面板位置配置
+ */
+interface PreviewPosition {
+  height: number;
+}
+
+/**
+ * 预览状态
+ */
+interface PreviewState {
+  visible: boolean;
+  position: PreviewPosition;
+  content: string;
+  blockFrom: number;
+  blockTo: number;
+  documentId: number | null;
+  view: EditorView | null;
+}
+
+/**
+ * Markdown 预览管理器类
+ */
+class MarkdownPreviewManager {
+  private state: ShallowRef<PreviewState> = shallowRef({
+    visible: false,
+    position: { height: 300 },
+    content: '',
+    blockFrom: 0,
+    blockTo: 0,
+    documentId: null,
+    view: null
+  });
+
+  /**
+   * 获取状态（供 Vue 组件使用）
+   */
+  useState() {
+    return this.state;
+  }
+
+  /**
+   * 显示预览面板
+   */
+  show(view: EditorView, documentId: number, blockFrom: number, blockTo: number): void {
+    const content = view.state.doc.sliceString(blockFrom, blockTo);
+    
+    // 计算初始高度（编辑器容器高度的 50%）
+    const containerHeight = view.dom.parentElement?.clientHeight || view.dom.clientHeight;
+    const defaultHeight = Math.floor(containerHeight * 0.5);
+    
+    this.state.value = {
+      visible: true,
+      position: { height: Math.max(100, defaultHeight) },
+      content,
+      blockFrom,
+      blockTo,
+      documentId,
+      view
+    };
+  }
+
+  /**
+   * 更新预览内容（文档编辑时调用）
+   */
+  updateContent(content: string, blockFrom: number, blockTo: number): void {
+    if (!this.state.value.visible) return;
+
+    this.state.value = {
+      ...this.state.value,
+      content,
+      blockFrom,
+      blockTo
+    };
+  }
+
+  /**
+   * 更新面板高度
+   */
+  updateHeight(height: number): void {
+    if (!this.state.value.visible) return;
+
+    this.state.value = {
+      ...this.state.value,
+      position: { height: Math.max(100, height) }
+    };
+  }
+
+  /**
+   * 隐藏预览面板
+   */
+  hide(): void {
+    if (!this.state.value.visible) return;
+
+    const view = this.state.value.view;
+    
+    this.state.value = {
+      visible: false,
+      position: { height: 300 },
+      content: '',
+      blockFrom: 0,
+      blockTo: 0,
+      documentId: null,
+      view: null
+    };
+
+    // 关闭后聚焦编辑器
+    if (view) {
+      view.focus();
+    }
+  }
+
+  /**
+   * 检查预览是否可见
+   */
+  isVisible(): boolean {
+    return this.state.value.visible;
+  }
+
+  /**
+   * 获取当前预览的文档 ID
+   */
+  getCurrentDocumentId(): number | null {
+    return this.state.value.documentId;
+  }
+
+  /**
+   * 获取当前预览的块范围
+   */
+  getCurrentBlockRange(): { from: number; to: number } | null {
+    if (!this.state.value.visible) return null;
+    return {
+      from: this.state.value.blockFrom,
+      to: this.state.value.blockTo
+    };
+  }
+
+  /**
+   * 清理资源
+   */
+  destroy(): void {
+    this.state.value = {
+      visible: false,
+      position: { height: 300 },
+      content: '',
+      blockFrom: 0,
+      blockTo: 0,
+      documentId: null,
+      view: null
+    };
+  }
+}
+
+/**
+ * 导出单例
+ */
+export const markdownPreviewManager = new MarkdownPreviewManager();
+
diff --git a/frontend/src/views/editor/extensions/markdownPreview/panel.ts b/frontend/src/views/editor/extensions/markdownPreview/panel.ts
deleted file mode 100644
index eaa5c57..0000000
--- a/frontend/src/views/editor/extensions/markdownPreview/panel.ts
+++ /dev/null
@@ -1,393 +0,0 @@
-/**
- * Markdown 预览面板 UI 组件
- */
-import {EditorView, Panel, ViewUpdate} from "@codemirror/view";
-import MarkdownIt from 'markdown-it';
-import * as runtime from "@wailsio/runtime";
-import {previewPanelState} from "./state";
-import {createMarkdownRenderer} from "./markdownRenderer";
-import {updateMermaidTheme} from "@/common/markdown-it/plugins/markdown-it-mermaid";
-import {useThemeStore} from "@/stores/themeStore";
-import {usePanelStore} from "@/stores/panelStore";
-import {watch} from "vue";
-import {createDebounce} from "@/common/utils/debounce";
-import {morphHTML} from "@/common/utils/domDiff";
-
-/**
- * Markdown 预览面板类
- */
-export class MarkdownPreviewPanel {
-  private md: MarkdownIt;
-  private readonly dom: HTMLDivElement;
-  private readonly resizeHandle: HTMLDivElement;
-  private readonly content: HTMLDivElement;
-  private view: EditorView;
-  private themeUnwatchers: Array<() => void> = [];
-  private lastRenderedContent: string = "";
-  private readonly debouncedUpdate: ReturnType<typeof createDebounce>;
-  private isDestroyed: boolean = false; // 标记面板是否已销毁
-
-  constructor(view: EditorView) {
-    this.view = view;
-    this.md = createMarkdownRenderer();
-
-    // 创建防抖更新函数
-    this.debouncedUpdate = createDebounce(() => {
-      this.updateContentInternal();
-    }, { delay: 500 });
-
-    // 监听主题变化
-    const themeStore = useThemeStore();
-    this.themeUnwatchers.push(
-      watch(() => themeStore.isDarkMode, (isDark) => {
-        const newTheme = isDark ? "dark" : "default";
-        updateMermaidTheme(newTheme);
-        this.resetPreviewContent();
-      })
-    );
-    this.themeUnwatchers.push(
-      watch(
-        () => themeStore.currentColors,
-        () => {
-          this.resetPreviewContent();
-        },
-        { deep: true }
-      )
-    );
-
-    // 创建 DOM 结构
-    this.dom = document.createElement("div");
-    this.dom.className = "cm-markdown-preview-panel";
-
-    this.resizeHandle = document.createElement("div");
-    this.resizeHandle.className = "cm-preview-resize-handle";
-
-    this.content = document.createElement("div");
-    this.content.className = "cm-preview-content";
-
-    this.dom.appendChild(this.resizeHandle);
-    this.dom.appendChild(this.content);
-
-    // 设置默认高度为编辑器高度的一半
-    const defaultHeight = Math.floor(this.view.dom.clientHeight / 2);
-    this.dom.style.height = `${defaultHeight}px`;
-
-    // 初始化拖动功能
-    this.initResize();
-
-    // 初始化链接点击处理
-    this.initLinkHandler();
-
-    // 初始渲染
-    this.updateContentInternal();
-  }
-
-  /**
-   * 初始化链接点击处理（事件委托）
-   */
-  private initLinkHandler(): void {
-    this.content.addEventListener('click', (e) => {
-      const target = e.target as HTMLElement;
-
-      // 查找最近的 <a> 标签
-      let linkElement = target;
-      while (linkElement && linkElement !== this.content) {
-        if (linkElement.tagName === 'A') {
-          const anchor = linkElement as HTMLAnchorElement;
-          const href = anchor.getAttribute('href');
-          
-          // 处理脚注内部锚点链接
-          if (href && href.startsWith('#')) {
-            e.preventDefault();
-            
-            // 在预览面板内查找目标元素
-            const targetId = href.substring(1);
-            
-            // 使用 getElementById 而不是 querySelector，因为 ID 可能包含特殊字符（如冒号）
-            const targetElement = document.getElementById(targetId);
-            
-            if (targetElement && this.content.contains(targetElement)) {
-              // 平滑滚动到目标元素
-              targetElement.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
-            }
-            return;
-          }
-          
-          // 处理带 data-href 的外部链接
-          if (anchor.hasAttribute('data-href')) {
-            e.preventDefault();
-            const url = anchor.getAttribute('data-href');
-            if (url && this.isValidUrl(url)) {
-              runtime.Browser.OpenURL(url);
-            }
-            return;
-          }
-          
-          // 处理其他链接
-          if (href && !href.startsWith('#')) {
-            e.preventDefault();
-            
-            // 只有有效的 URL（http/https/mailto/file 等）才用浏览器打开
-            if (this.isValidUrl(href)) {
-            runtime.Browser.OpenURL(href);
-            } else {
-              // 相对路径或无效链接，显示提示
-              console.warn('Invalid or relative link in preview:', href);
-            }
-            return;
-          }
-        }
-        
-        linkElement = linkElement.parentElement as HTMLElement;
-      }
-    });
-  }
-
-  /**
-   * 检查是否是有效的 URL（包含协议）
-   */
-  private isValidUrl(url: string): boolean {
-    try {
-      // 检查是否包含协议
-      if (url.match(/^[a-zA-Z][a-zA-Z\d+\-.]*:/)) {
-        const parsedUrl = new URL(url);
-        // 允许的协议列表
-        const allowedProtocols = ['http:', 'https:', 'mailto:', 'file:', 'ftp:'];
-        return allowedProtocols.includes(parsedUrl.protocol);
-      }
-      return false;
-    } catch {
-      return false;
-    }
-  }
-
-  /**
-   * 初始化拖动调整高度功能
-   */
-  private initResize(): void {
-    let startY = 0;
-    let startHeight = 0;
-    
-    const onMouseMove = (e: MouseEvent) => {
-      const delta = startY - e.clientY;
-      const maxHeight = this.getMaxHeight();
-      const newHeight = Math.max(100, Math.min(maxHeight, startHeight + delta));
-      this.dom.style.height = `${newHeight}px`;
-    };
-    
-    const onMouseUp = () => {
-      document.removeEventListener("mousemove", onMouseMove);
-      document.removeEventListener("mouseup", onMouseUp);
-      this.resizeHandle.classList.remove("dragging");
-      // 恢复 body 样式
-      document.body.style.cursor = "";
-      document.body.style.userSelect = "";
-    };
-    
-    this.resizeHandle.addEventListener("mousedown", (e) => {
-      e.preventDefault();
-      startY = e.clientY;
-      startHeight = this.dom.offsetHeight;
-      this.resizeHandle.classList.add("dragging");
-      // 设置 body 样式，防止拖动时光标闪烁
-      document.body.style.cursor = "ns-resize";
-      document.body.style.userSelect = "none";
-      document.addEventListener("mousemove", onMouseMove);
-      document.addEventListener("mouseup", onMouseUp);
-    });
-  }
-
-  /**
-   * 动态计算最大高度（编辑器高度）
-   */
-  private getMaxHeight(): number {
-      return this.view.dom.clientHeight;
-  }
-
-  /**
-   * 内部更新预览内容（带缓存 + DOM Diff 优化）
-   */
-  private updateContentInternal(): void {
-    // 如果面板已销毁，直接返回
-    if (this.isDestroyed) {
-      return;
-    }
-
-    try {
-      const state = this.view.state;
-      const currentPreviewState = state.field(previewPanelState, false);
-
-      if (!currentPreviewState) {
-        return;
-      }
-
-      const blockContent = state.doc.sliceString(
-        currentPreviewState.blockFrom, 
-        currentPreviewState.blockTo
-      );
-
-      if (!blockContent || blockContent.trim().length === 0) {
-        return;
-      }
-
-      // 缓存检查：如果内容没变，不重新渲染
-      if (blockContent === this.lastRenderedContent) {
-        return;
-      }
-
-      // 对于大内容，使用异步渲染避免阻塞主线程
-      if (blockContent.length > 1000) {
-        this.renderLargeContentAsync(blockContent);
-      } else {
-        // 小内容使用 DOM Diff 优化渲染
-        this.renderWithDiff(blockContent);
-      }
-
-    } catch (error) {
-      console.warn("Error updating preview content:", error);
-    }
-  }
-
-  /**
-   * 使用 DOM Diff 渲染内容（保留未变化的节点）
-   */
-  private renderWithDiff(content: string): void {
-    // 如果面板已销毁，直接返回
-    if (this.isDestroyed) {
-      return;
-    }
-
-    try {
-      const newHtml = this.md.render(content);
-      
-      // 如果是首次渲染或内容为空，直接设置 innerHTML
-      if (!this.lastRenderedContent || this.content.children.length === 0) {
-        this.content.innerHTML = newHtml;
-      } else {
-        // 使用 DOM Diff 增量更新
-        morphHTML(this.content, newHtml);
-      }
-      
-      this.lastRenderedContent = content;
-    } catch (error) {
-      console.warn("Error rendering with diff:", error);
-      // 降级到直接设置 innerHTML
-      if (!this.isDestroyed) {
-        this.content.innerHTML = this.md.render(content);
-        this.lastRenderedContent = content;
-      }
-    }
-  }
-
-  /**
-   * 异步渲染大内容（使用 DOM Diff 优化）
-   */
-  private renderLargeContentAsync(content: string): void {
-    // 如果面板已销毁，直接返回
-    if (this.isDestroyed) {
-      return;
-    }
-
-    // 如果是首次渲染，显示加载状态
-    if (!this.lastRenderedContent) {
-    this.content.innerHTML = '<div class="markdown-loading">Rendering...</div>';
-    }
-    
-    // 使用 requestIdleCallback 在浏览器空闲时渲染
-    const callback = window.requestIdleCallback || ((cb: IdleRequestCallback) => setTimeout(cb, 1));
-    
-    callback(() => {
-      // 再次检查是否已销毁（异步回调时可能已经关闭）
-      if (this.isDestroyed) {
-        return;
-      }
-
-      try {
-        const html = this.md.render(content);
-        
-        // 如果是首次渲染或之前内容为空，直接设置
-        if (!this.lastRenderedContent || this.content.children.length === 0) {
-        // 使用 DocumentFragment 减少 DOM 操作
-        const fragment = document.createRange().createContextualFragment(html);
-        this.content.innerHTML = '';
-        this.content.appendChild(fragment);
-        } else {
-          // 使用 DOM Diff 增量更新（保留滚动位置和未变化的节点）
-          morphHTML(this.content, html);
-        }
-        
-        this.lastRenderedContent = content;
-      } catch (error) {
-        console.warn("Error rendering large content:", error);
-        if (!this.isDestroyed) {
-        this.content.innerHTML = '<div class="markdown-error">Render failed</div>';
-        }
-      }
-    });
-  }
-
-  private resetPreviewContent(): void {
-    if (this.isDestroyed) {
-      return;
-    }
-
-    this.md = createMarkdownRenderer();
-    this.lastRenderedContent = "";
-    this.updateContentInternal();
-  }
-
-  /**
-   * 响应编辑器更新
-   */
-  public update(update: ViewUpdate): void {
-    if (update.docChanged) {
-      // 文档改变时使用防抖更新
-      this.debouncedUpdate.debouncedFn();
-    } else if (update.selectionSet) {
-      // 光标移动时不触发更新
-      // 如果需要根据光标位置更新，可以在这里处理
-    }
-  }
-
-  /**
-   * 清理资源
-   */
-  public destroy(): void {
-    // 标记为已销毁，防止异步回调继续执行
-    this.isDestroyed = true;
-
-    // 清理防抖
-    if (this.debouncedUpdate) {
-      this.debouncedUpdate.cancel();
-    }
-
-    // 清空缓存
-    this.lastRenderedContent = "";
-
-    if (this.themeUnwatchers.length) {
-      this.themeUnwatchers.forEach(unwatch => unwatch());
-      this.themeUnwatchers = [];
-    }
-  }
-
-  /**
-   * 获取 CodeMirror Panel 对象
-   */
-  public getPanel(): Panel {
-    return {
-      top: false,
-      dom: this.dom,
-      update: (update: ViewUpdate) => this.update(update),
-      destroy: () => this.destroy()
-    };
-  }
-}
-
-/**
- * 创建预览面板
- */
-export function createPreviewPanel(view: EditorView): Panel {
-  const panel = new MarkdownPreviewPanel(view);
-  return panel.getPanel();
-}
-
diff --git a/frontend/src/views/editor/extensions/markdownPreview/markdownRenderer.ts b/frontend/src/views/editor/extensions/markdownPreview/renderer.ts
similarity index 100%
rename from frontend/src/views/editor/extensions/markdownPreview/markdownRenderer.ts
rename to frontend/src/views/editor/extensions/markdownPreview/renderer.ts
diff --git a/frontend/src/views/editor/extensions/markdownPreview/state.ts b/frontend/src/views/editor/extensions/markdownPreview/state.ts
deleted file mode 100644
index 306dd44..0000000
--- a/frontend/src/views/editor/extensions/markdownPreview/state.ts
+++ /dev/null
@@ -1,142 +0,0 @@
-/**
- * Markdown 预览面板的 CodeMirror 状态管理
- */
-import { EditorView, showPanel, ViewUpdate, ViewPlugin } from "@codemirror/view";
-import { StateEffect, StateField } from "@codemirror/state";
-import { getActiveNoteBlock } from "../codeblock/state";
-import { usePanelStore } from "@/stores/panelStore";
-import { createPreviewPanel } from "./panel";
-import type { PreviewState } from "./types";
-
-/**
- * 定义切换预览面板的 Effect
- */
-export const togglePreview = StateEffect.define<PreviewState | null>();
-
-/**
- * 关闭面板（带动画）
- */
-export function closePreviewWithAnimation(view: EditorView): void {
-  const panelStore = usePanelStore();
-  
-  // 标记开始关闭
-  panelStore.startClosingMarkdownPreview();
-  
-  const panelElement = view.dom.querySelector('.cm-panels.cm-panels-bottom') as HTMLElement;
-  if (panelElement) {
-    panelElement.style.animation = 'panelSlideDown 0.3s cubic-bezier(0.4, 0, 0.2, 1)';
-    // 等待动画完成后再关闭面板
-    setTimeout(() => {
-      view.dispatch({
-        effects: togglePreview.of(null)
-      });
-      panelStore.closeMarkdownPreview();
-    }, 280);
-  } else {
-    view.dispatch({
-      effects: togglePreview.of(null)
-    });
-    panelStore.closeMarkdownPreview();
-  }
-}
-
-/**
- * 定义预览面板的状态字段
- */
-export const previewPanelState = StateField.define<PreviewState | null>({
-  create: () => null,
-  update(value, tr) {
-    const panelStore = usePanelStore();
-    
-    for (let e of tr.effects) {
-      if (e.is(togglePreview)) {
-        value = e.value;
-      }
-    }
-    
-    // 如果有预览状态，智能管理预览生命周期
-    if (value && !value.closing) {
-      const activeBlock = getActiveNoteBlock(tr.state as any);
-      
-      // 关键修复：检查预览状态是否属于当前文档
-      // 如果 panelStore 中没有当前文档的预览状态（说明切换了文档），
-      // 则不执行关闭逻辑，保持其他文档的预览状态
-      if (!panelStore.markdownPreview.isOpen) {
-        // 当前文档没有预览，不处理
-        return value;
-      }
-      
-      // 场景1：离开 Markdown 块或无激活块 → 关闭预览
-      if (!activeBlock || activeBlock.language.name.toLowerCase() !== 'md') {
-        if (!panelStore.markdownPreview.isClosing) {
-          return { ...value, closing: true };
-        }
-      } 
-      // 场景2：切换到其他块（起始位置变化）→ 关闭预览
-      else if (activeBlock.content.from !== value.blockFrom) {
-        if (!panelStore.markdownPreview.isClosing) {
-          return { ...value, closing: true };
-        }
-      } 
-      // 场景3：还在同一个块内编辑（只有结束位置变化）→ 更新范围，实时预览
-      else if (activeBlock.content.to !== value.blockTo) {
-        // 更新 panelStore 中的预览范围
-        panelStore.updatePreviewRange(value.blockFrom, activeBlock.content.to);
-        
-        return {
-          documentId: value.documentId,
-          blockFrom: value.blockFrom,
-          blockTo: activeBlock.content.to,
-          closing: false
-        };
-      }
-    }
-    
-    return value;
-  },
-  provide: f => showPanel.from(f, state => state ? createPreviewPanel : null)
-});
-
-/**
- * 创建监听插件
- */
-export const previewPanelPlugin = ViewPlugin.fromClass(class {
-  private lastState: PreviewState | null | undefined = null;
-  private panelStore = usePanelStore();
-
-  constructor(private view: EditorView) {
-    this.lastState = view.state.field(previewPanelState, false);
-    this.panelStore.setEditorView(view);
-  }
-
-  update(update: ViewUpdate) {
-    const currentState = update.state.field(previewPanelState, false);
-    
-    // 检测到面板打开（从 null 变为有值，且不是 closing）
-    if (currentState && !currentState.closing && !this.lastState) {
-      // 验证面板 DOM 是否真正创建成功
-      requestAnimationFrame(() => {
-        const panelElement = this.view.dom.querySelector('.cm-markdown-preview-panel');
-        if (panelElement) {
-          // 面板创建成功，更新 store 状态
-          this.panelStore.openMarkdownPreview(currentState.blockFrom, currentState.blockTo);
-        }
-      });
-    }
-    
-    // 检测到状态变为 closing
-    if (currentState?.closing && !this.lastState?.closing) {
-      // 触发关闭动画
-      closePreviewWithAnimation(this.view);
-    }
-    
-    this.lastState = currentState;
-  }
-  
-  destroy() {
-    // 不调用 reset()，因为那会清空所有文档的预览状态
-    // 只清理编辑器视图引用
-    this.panelStore.setEditorView(null);
-  }
-});
-
diff --git a/frontend/src/views/editor/extensions/markdownPreview/styles.ts b/frontend/src/views/editor/extensions/markdownPreview/styles.ts
deleted file mode 100644
index 13a343c..0000000
--- a/frontend/src/views/editor/extensions/markdownPreview/styles.ts
+++ /dev/null
@@ -1,384 +0,0 @@
-import { EditorView } from "@codemirror/view";
-import type { ThemeColors } from "@/views/editor/theme/types";
-
-/**
- * 创建 Markdown 预览面板的主题样式
- */
-export function createMarkdownPreviewTheme(colors: ThemeColors) {
-  // GitHub 官方颜色变量
-  const isDark = colors.dark;
-  
-  // GitHub Light 主题颜色
-  const lightColors = {
-    fg: {
-      default: "#1F2328",
-      muted: "#656d76",
-      subtle: "#6e7781"
-    },
-    border: {
-      default: "#d0d7de",
-      muted: "#d8dee4"
-    },
-    canvas: {
-      default: "#ffffff",
-      subtle: "#f6f8fa"
-    },
-    accent: {
-      fg: "#0969da",
-      emphasis: "#0969da"
-    }
-  };
-  
-  // GitHub Dark 主题颜色
-  const darkColors = {
-    fg: {
-      default: "#e6edf3",
-      muted: "#7d8590",
-      subtle: "#6e7681"
-    },
-    border: {
-      default: "#30363d",
-      muted: "#21262d"
-    },
-    canvas: {
-      default: "#0d1117",
-      subtle: "#161b22"
-    },
-    accent: {
-      fg: "#2f81f7",
-      emphasis: "#2f81f7"
-    }
-  };
-  
-  const ghColors = isDark ? darkColors : lightColors;
-  
-  return EditorView.theme({
-    // 面板容器
-    ".cm-markdown-preview-panel": {
-      position: "relative",
-      display: "flex",
-      flexDirection: "column",
-      overflow: "hidden"
-    },
-
-    // 拖动调整大小的手柄
-    ".cm-preview-resize-handle": {
-      width: "100%",
-      height: "3px",
-      backgroundColor: colors.borderColor,
-      cursor: "ns-resize",
-      position: "relative",
-      flexShrink: 0,
-      transition: "background-color 0.2s ease",
-      "&:hover": {
-        backgroundColor: colors.selection
-      },
-      "&.dragging": {
-        backgroundColor: colors.selection
-      }
-    },
-
-      // 面板动画效果
-      '.cm-panels.cm-panels-top': {
-          borderBottom: '2px solid black'
-      },
-      '.cm-panels.cm-panels-bottom': {
-          animation: 'panelSlideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1)'
-      },
-      '@keyframes panelSlideUp': {
-          from: {
-              transform: 'translateY(100%)',
-              opacity: '0'
-          },
-          to: {
-              transform: 'translateY(0)',
-              opacity: '1'
-          }
-      },
-      '@keyframes panelSlideDown': {
-          from: {
-              transform: 'translateY(0)',
-              opacity: '1'
-          },
-          to: {
-              transform: 'translateY(100%)',
-              opacity: '0'
-          }
-      },
-
-    // 内容区域
-    ".cm-preview-content": {
-      flex: 1,
-      padding: "45px",
-      overflow: "auto",
-      fontSize: "16px",
-      lineHeight: "1.5",
-      color: ghColors.fg.default,
-      wordWrap: "break-word",
-      fontFamily: "-apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji'",
-      boxSizing: "border-box",
-      
-      // Loading state
-      "& .markdown-loading, & .markdown-error": {
-        display: "flex",
-        alignItems: "center",
-        justifyContent: "center",
-        minHeight: "200px",
-        fontSize: "14px",
-        color: ghColors.fg.muted
-      },
-      
-      "& .markdown-error": {
-        color: "#f85149"
-      },
-      
-      // ========== 标题样式 ==========
-      "& h1, & h2, & h3, & h4, & h5, & h6": {
-        marginTop: "24px",
-        marginBottom: "16px",
-        fontWeight: "600",
-        lineHeight: "1.25",
-        color: ghColors.fg.default
-      },
-      "& h1": {
-        fontSize: "2em",
-        borderBottom: `1px solid ${ghColors.border.muted}`,
-        paddingBottom: "0.3em"
-      },
-      "& h2": {
-        fontSize: "1.5em",
-        borderBottom: `1px solid ${ghColors.border.muted}`,
-        paddingBottom: "0.3em"
-      },
-      "& h3": {
-        fontSize: "1.25em"
-      },
-      "& h4": {
-        fontSize: "1em"
-      },
-      "& h5": {
-        fontSize: "0.875em"
-      },
-      "& h6": {
-        fontSize: "0.85em",
-        color: ghColors.fg.muted
-      },
-
-      // ========== 段落和文本 ==========
-      "& p": {
-        marginTop: "0",
-        marginBottom: "16px"
-      },
-      "& strong": {
-        fontWeight: "600"
-      },
-      "& em": {
-        fontStyle: "italic"
-      },
-      "& del": {
-        textDecoration: "line-through",
-        opacity: "0.7"
-      },
-
-      // ========== 列表 ==========
-      "& ul, & ol": {
-        paddingLeft: "2em",
-        marginTop: "0",
-        marginBottom: "16px"
-      },
-      "& ul ul, & ul ol, & ol ol, & ol ul": {
-        marginTop: "0",
-        marginBottom: "0"
-      },
-      "& li": {
-        wordWrap: "break-all"
-      },
-      "& li > p": {
-        marginTop: "16px"
-      },
-      "& li + li": {
-        marginTop: "0.25em"
-      },
-
-      // 任务列表
-      "& .task-list-item": {
-        listStyleType: "none",
-        position: "relative",
-        paddingLeft: "1.5em"
-      },
-      "& .task-list-item + .task-list-item": {
-        marginTop: "3px"
-      },
-      "& .task-list-item input[type='checkbox']": {
-        font: "inherit",
-        overflow: "visible",
-        fontFamily: "inherit",
-        fontSize: "inherit",
-        lineHeight: "inherit",
-        boxSizing: "border-box",
-        padding: "0",
-        margin: "0 0.2em 0.25em -1.6em",
-        verticalAlign: "middle",
-        cursor: "pointer"
-      },
-
-      // ========== 代码块 ==========
-      "& code, & tt": {
-        fontFamily: "SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace",
-        fontSize: "85%",
-        padding: "0.2em 0.4em",
-        margin: "0",
-        backgroundColor: isDark ? "rgba(110, 118, 129, 0.4)" : "rgba(27, 31, 35, 0.05)",
-        borderRadius: "3px"
-      },
-      
-      "& pre": {
-        position: "relative",
-        backgroundColor: isDark ? "#161b22" : "#f6f8fa",
-        padding: "40px 16px 16px 16px",
-        borderRadius: "6px",
-        overflow: "auto",
-        margin: "16px 0",
-        fontSize: "85%",
-        lineHeight: "1.45",
-        wordWrap: "normal",
-        
-        // macOS 窗口样式 - 使用伪元素创建顶部栏
-        "&::before": {
-          content: '""',
-          position: "absolute",
-          top: "0",
-          left: "0",
-          right: "0",
-          height: "28px",
-          backgroundColor: isDark ? "#1c1c1e" : "#e8e8e8",
-          borderBottom: `1px solid ${ghColors.border.default}`,
-          borderRadius: "6px 6px 0 0"
-        },
-        
-        // macOS 三个控制按钮
-        "&::after": {
-          content: '""',
-          position: "absolute",
-          top: "10px",
-          left: "12px",
-          width: "12px",
-          height: "12px",
-          borderRadius: "50%",
-          backgroundColor: isDark ? "#ec6a5f" : "#ff5f57",
-          boxShadow: `
-            18px 0 0 0 ${isDark ? "#f4bf4f" : "#febc2e"},
-            36px 0 0 0 ${isDark ? "#61c554" : "#28c840"}
-          `
-        }
-      },
-      
-      "& pre code, & pre tt": {
-        display: "inline",
-        maxWidth: "auto",
-        padding: "0",
-        margin: "0",
-        overflow: "visible",
-        lineHeight: "inherit",
-        wordWrap: "normal",
-        backgroundColor: "transparent",
-        border: "0",
-        fontSize: "100%",
-        color: ghColors.fg.default,
-        wordBreak: "normal",
-        whiteSpace: "pre"
-      },
-
-      // ========== 引用块 ==========
-      "& blockquote": {
-        margin: "16px 0",
-        padding: "0 1em",
-        color: isDark ? "#7d8590" : "#6a737d",
-        borderLeft: isDark ? "0.25em solid #3b434b" : "0.25em solid #dfe2e5"
-      },
-      "& blockquote > :first-child": {
-        marginTop: "0"
-      },
-      "& blockquote > :last-child": {
-        marginBottom: "0"
-      },
-
-      // ========== 分割线 ==========
-      "& hr": {
-        height: "0.25em",
-        padding: "0",
-        margin: "24px 0",
-        backgroundColor: isDark ? "#21262d" : "#e1e4e8",
-        border: "0",
-        overflow: "hidden",
-        boxSizing: "content-box"
-      },
-
-      // ========== 表格 ==========
-      "& table": {
-        borderSpacing: "0",
-        borderCollapse: "collapse",
-        display: "block",
-        width: "100%",
-        overflow: "auto",
-        marginTop: "0",
-        marginBottom: "16px"
-      },
-      "& table tr": {
-        backgroundColor: isDark ? "#0d1117" : "#ffffff",
-        borderTop: isDark ? "1px solid #21262d" : "1px solid #c6cbd1"
-      },
-      "& table th, & table td": {
-        padding: "6px 13px",
-        border: isDark ? "1px solid #30363d" : "1px solid #dfe2e5"
-      },
-      "& table th": {
-        fontWeight: "600"
-      },
-
-      // ========== 链接 ==========
-      "& a, & .markdown-link": {
-        color: isDark ? "#58a6ff" : "#0366d6",
-        textDecoration: "none",
-        cursor: "pointer",
-        "&:hover": {
-          textDecoration: "underline"
-        }
-      },
-
-      // ========== 图片 ==========
-      "& img": {
-        maxWidth: "100%",
-        height: "auto",
-        borderRadius: "4px",
-        margin: "16px 0"
-      },
-
-      // ========== 其他元素 ==========
-      "& kbd": {
-        display: "inline-block",
-        padding: "3px 5px",
-        fontSize: "11px",
-        lineHeight: "10px",
-        color: ghColors.fg.default,
-        verticalAlign: "middle",
-        backgroundColor: ghColors.canvas.subtle,
-        border: `solid 1px ${isDark ? "rgba(110, 118, 129, 0.4)" : "rgba(175, 184, 193, 0.2)"}`,
-        borderBottom: `solid 2px ${isDark ? "rgba(110, 118, 129, 0.4)" : "rgba(175, 184, 193, 0.2)"}`,
-        borderRadius: "6px",
-        boxShadow: "inset 0 -1px 0 rgba(175, 184, 193, 0.2)"
-      },
-
-      // 首个子元素去除上边距
-      "& > *:first-child": {
-        marginTop: "0 !important"
-      },
-
-      // 最后一个子元素去除下边距
-      "& > *:last-child": {
-        marginBottom: "0 !important"
-      }
-    }
-  }, { dark: colors.dark });
-}
-
diff --git a/frontend/src/views/editor/extensions/markdownPreview/types.ts b/frontend/src/views/editor/extensions/markdownPreview/types.ts
deleted file mode 100644
index e30deec..0000000
--- a/frontend/src/views/editor/extensions/markdownPreview/types.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-/**
- * Markdown 预览面板相关类型定义
- */
-
-// 预览面板状态
-export interface PreviewState {
-  documentId: number; // 预览所属的文档ID
-  blockFrom: number;
-  blockTo: number;
-  closing?: boolean; // 标记面板正在关闭
-}
-
diff --git a/frontend/src/views/editor/extensions/rainbowBracket/rainbowBracketsExtension.ts b/frontend/src/views/editor/extensions/rainbowBracket/index.ts
similarity index 98%
rename from frontend/src/views/editor/extensions/rainbowBracket/rainbowBracketsExtension.ts
rename to frontend/src/views/editor/extensions/rainbowBracket/index.ts
index 788e9a9..9926140 100644
--- a/frontend/src/views/editor/extensions/rainbowBracket/rainbowBracketsExtension.ts
+++ b/frontend/src/views/editor/extensions/rainbowBracket/index.ts
@@ -69,7 +69,7 @@ const rainbowBracketsPlugin = ViewPlugin.fromClass(RainbowBracketsView, {
     decorations: (v) => v.decorations,
 });
 
-export default function rainbowBracketsExtension() {
+export default function index() {
     return [
         rainbowBracketsPlugin,
         EditorView.baseTheme({
diff --git a/frontend/src/views/editor/manager/extensions.ts b/frontend/src/views/editor/manager/extensions.ts
index 22d6317..9ea970a 100644
--- a/frontend/src/views/editor/manager/extensions.ts
+++ b/frontend/src/views/editor/manager/extensions.ts
@@ -3,7 +3,7 @@ import {ExtensionID} from '@/../bindings/voidraft/internal/models/models';
 import i18n from '@/i18n';
 import {ExtensionDefinition} from './types';
 
-import rainbowBracketsExtension from '../extensions/rainbowBracket/rainbowBracketsExtension';
+import index from '../extensions/rainbowBracket';
 import {createTextHighlighter} from '../extensions/textHighlight';
 import {color} from '../extensions/colorSelector';
 import {hyperLink} from '../extensions/hyperlink';
@@ -28,7 +28,7 @@ const defineExtension = (create: (config: any) => any, defaultConfig: Record<str
 
 const EXTENSION_REGISTRY: Record<RegisteredExtensionID, ExtensionEntry> = {
     [ExtensionID.ExtensionRainbowBrackets]: {
-        definition: defineExtension(() => rainbowBracketsExtension()),
+        definition: defineExtension(() => index()),
         displayNameKey: 'extensions.rainbowBrackets.name',
         descriptionKey: 'extensions.rainbowBrackets.description'
     },