Merge remote-tracking branch 'github/dependabot/npm_and_yarn/frontend/js-yaml-4.1.1'

⚡ Optimize HTTP client
🐛 Fixed markdown preview issue
2025-11-16 15:44:58 +08:00 · 2025-11-16 15:41:16 +08:00 · 2025-11-16 15:22:49 +08:00 · 2025-11-16 15:16:49 +08:00 · 2025-11-16 02:42:59 +08:00 · 2025-11-16 02:42:01 +08:00
184 changed files with 20878 additions and 4108 deletions
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -0,0 +1,325 @@
+name: Build and Release Voidraft
+
+on:
+  # 推送标签时触发（用于正式发布）
+  push:
+    tags:
+      - 'v*'  # 触发条件：推送 v 开头的标签，如 v1.0.0
+    branches:
+      - main  # 仅当标签在 main 分支时触发
+  
+  # 手动触发（用于测试）
+  workflow_dispatch:
+    inputs:
+      release:
+        description: '是否创建 Release（测试时选 false）'
+        required: true
+        type: boolean
+        default: false
+      platforms:
+        description: '要构建的平台（用逗号分隔：windows,linux,macos-intel,macos-arm）'
+        required: true
+        type: string
+        default: 'windows,linux'
+
+env:
+  NODE_OPTIONS: "--max-old-space-size=4096"  # 防止 Node.js 内存溢出
+
+jobs:
+  # 准备构建配置
+  prepare:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+      should_release: ${{ steps.check-release.outputs.should_release }}
+    steps:
+      - name: 确定构建平台
+        id: set-matrix
+        run: |
+          # 如果是手动触发，根据输入决定平台
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            PLATFORMS="${{ github.event.inputs.platforms }}"
+          else
+            # 标签触发，构建所有平台
+            PLATFORMS="windows,linux,macos-intel,macos-arm"
+          fi
+          
+          echo "构建平台: $PLATFORMS"
+          
+          # 构建矩阵 JSON
+          MATRIX='{"include":[]}'
+          
+          if [[ "$PLATFORMS" == *"windows"* ]]; then
+            MATRIX=$(echo "$MATRIX" | jq -c '.include += [{"platform":"windows-latest","os":"windows","arch":"amd64","platform_dir":"windows","id":"windows"}]')
+          fi
+          
+          if [[ "$PLATFORMS" == *"linux"* ]]; then
+            MATRIX=$(echo "$MATRIX" | jq -c '.include += [{"platform":"ubuntu-22.04","os":"linux","arch":"amd64","platform_dir":"linux","id":"linux"}]')
+          fi
+          
+          if [[ "$PLATFORMS" == *"macos-intel"* ]]; then
+            MATRIX=$(echo "$MATRIX" | jq -c '.include += [{"platform":"macos-latest","os":"darwin","arch":"amd64","platform_dir":"darwin","id":"macos-intel"}]')
+          fi
+          
+          if [[ "$PLATFORMS" == *"macos-arm"* ]]; then
+            MATRIX=$(echo "$MATRIX" | jq -c '.include += [{"platform":"macos-latest","os":"darwin","arch":"arm64","platform_dir":"darwin","id":"macos-arm"}]')
+          fi
+          
+          # 使用 -c 确保输出紧凑的单行 JSON，符合 GitHub Actions 输出格式
+          echo "matrix=$(echo "$MATRIX" | jq -c .)" >> $GITHUB_OUTPUT
+          
+          # 输出美化的 JSON 用于日志查看
+          echo "生成的矩阵:"
+          echo "$MATRIX" | jq .
+      
+      - name: 检查是否创建 Release
+        id: check-release
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            # 手动触发，根据输入决定
+            echo "should_release=${{ github.event.inputs.release }}" >> $GITHUB_OUTPUT
+          else
+            # 标签触发，自动创建 Release
+            echo "should_release=true" >> $GITHUB_OUTPUT
+          fi
+
+  build:
+    needs: prepare
+    if: ${{ fromJson(needs.prepare.outputs.matrix).include[0] != null }}
+    strategy:
+      fail-fast: false
+      matrix: ${{ fromJson(needs.prepare.outputs.matrix) }}
+
+    runs-on: ${{ matrix.platform }}
+    
+    steps:
+      - name: 检出代码
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: 设置 Go 环境
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21'
+          cache: true
+
+      - name: 设置 Node.js 环境
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: frontend/package-lock.json
+
+      # Linux 平台依赖
+      - name: 安装 Linux 依赖
+        if: matrix.os == 'linux'
+        run: |
+          sudo apt-get update
+          # Wails 3 + 项目特定依赖
+          sudo apt-get install -y \
+            build-essential \
+            pkg-config \
+            libgtk-3-dev \
+            libwebkit2gtk-4.1-dev \
+            libayatana-appindicator3-dev \
+            librsvg2-dev \
+            patchelf \
+            libx11-dev \
+            rpm \
+            fuse \
+            file
+          
+          # 依赖说明：
+          # - build-essential: C/C++ 编译工具链
+          # - pkg-config: 包配置工具
+          # - libgtk-3-dev: GTK3 GUI 框架
+          # - libwebkit2gtk-4.1-dev: WebKit2GTK 4.1 (Wails 3 要求)
+          # - libayatana-appindicator3-dev: 系统托盘支持
+          # - librsvg2-dev: SVG 图标支持
+          # - patchelf: 修改 ELF 二进制文件
+          # - libx11-dev: X11 库 (热键服务依赖)
+          # - rpm: RPM 打包工具
+          # - fuse: AppImage 运行依赖
+          # - file: 文件类型检测工具
+
+      # Windows 平台依赖
+      - name: 设置 Windows 构建环境
+        if: matrix.os == 'windows'
+        run: |
+          # 安装 NSIS (用于创建安装程序)
+          choco install nsis -y
+          # 将 NSIS 添加到 PATH
+          echo "C:\Program Files (x86)\NSIS" >> $GITHUB_PATH
+        shell: bash
+
+      # macOS 平台依赖
+      - name: 设置 macOS 构建环境
+        if: matrix.os == 'darwin'
+        run: |
+          # Xcode 命令行工具通常已安装
+          xcode-select --install 2>/dev/null || true
+
+      # 安装 Wails CLI
+      - name: 安装 Wails CLI
+        run: go install github.com/wailsapp/wails/v3/cmd/wails3@latest
+
+      # 安装前端依赖
+      - name: 安装前端依赖
+        working-directory: frontend
+        run: npm ci
+
+      # 构建前端
+      - name: 构建前端
+        working-directory: frontend
+        run: npm run build
+
+      # 使用 Wails Task 构建和打包应用
+      - name: 构建和打包 Wails 应用
+        run: wails3 task ${{ matrix.id }}:package PRODUCTION=true ARCH=${{ matrix.arch }}
+        env:
+          CGO_ENABLED: 1
+          APP_NAME: voidraft
+          BIN_DIR: bin
+          ROOT_DIR: .
+        shell: bash
+
+      # 整理构建产物
+      - name: 整理构建产物
+        id: organize_artifacts
+        run: |
+          echo "=== 构建产物列表 ==="
+          ls -lhR bin/ || echo "bin 目录不存在"
+          
+          # 创建输出目录
+          mkdir -p artifacts
+          
+          # 根据平台复制产物
+          if [ "${{ matrix.os }}" = "windows" ]; then
+            echo "Windows 平台：查找 NSIS 安装程序"
+            find . -name "*.exe" -type f
+            cp bin/*.exe artifacts/ 2>/dev/null || echo "未找到 .exe 文件"
+            
+          elif [ "${{ matrix.os }}" = "linux" ]; then
+            echo "Linux 平台：查找 AppImage, deb, rpm, archlinux 包"
+            find bin -type f
+            cp bin/*.AppImage artifacts/ 2>/dev/null || echo "未找到 AppImage"
+            cp bin/*.deb artifacts/ 2>/dev/null || echo "未找到 deb"
+            cp bin/*.rpm artifacts/ 2>/dev/null || echo "未找到 rpm"
+            cp bin/*.pkg.tar.zst artifacts/ 2>/dev/null || echo "未找到 archlinux 包"
+            
+          elif [ "${{ matrix.os }}" = "darwin" ]; then
+            echo "macOS 平台：查找 .app bundle"
+            find bin -name "*.app" -type d
+            # macOS: .app bundle，打包成 zip
+            if [ -d "bin/voidraft.app" ]; then
+              cd bin
+              zip -r ../artifacts/voidraft-darwin-${{ matrix.arch }}.app.zip voidraft.app
+              cd ..
+            else
+              echo "未找到 .app bundle"
+            fi
+          fi
+          
+          echo "=== 最终产物 ==="
+          ls -lh artifacts/ || echo "artifacts 目录为空"
+        shell: bash
+
+      # 上传构建产物到 Artifacts
+      - name: 上传构建产物
+        uses: actions/upload-artifact@v4
+        with:
+          name: voidraft-${{ matrix.id }}
+          path: artifacts/*
+          if-no-files-found: warn
+
+  # 创建 GitHub Release 并上传所有构建产物
+  release:
+    needs: [prepare, build]
+    if: ${{ needs.prepare.outputs.should_release == 'true' }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    
+    steps:
+      - name: 检出代码
+        uses: actions/checkout@v4
+
+      - name: 下载所有构建产物
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
+
+      - name: 显示下载的文件
+        run: |
+          echo "下载的构建产物："
+          ls -R artifacts/
+
+      - name: 准备 Release 文件
+        run: |
+          mkdir -p release
+          find artifacts -type f -exec cp {} release/ \;
+          ls -lh release/
+
+      - name: 生成 Release 说明
+        id: release_notes
+        run: |
+          # 获取版本号
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            VERSION="${{ github.sha }}"
+            VERSION_NAME="测试构建 ${VERSION:0:7}"
+          else
+            VERSION="${{ github.ref_name }}"
+            VERSION_NAME="${VERSION}"
+          fi
+          
+          cat > release_notes.md << EOF
+          ## Voidraft ${VERSION_NAME}
+          
+          ### 📦 下载
+          
+          根据你的操作系统选择对应的版本：
+          
+          - **Windows (64位)**: \`voidraft-windows-amd64.exe\`
+          - **Linux (64位)**: \`voidraft-linux-amd64\`
+          - **macOS (Intel)**: \`voidraft-darwin-amd64.zip\`
+          - **macOS (Apple Silicon)**: \`voidraft-darwin-arm64.zip\`
+          
+          ### 📝 更新内容
+          
+          请查看 [提交历史](../../commits/${{ github.ref_name }}) 了解本次更新的详细内容。
+          
+          ### 💡 使用说明
+          
+          #### Windows
+          1. 下载 `voidraft-windows-amd64.exe`
+          2. 直接运行即可
+          
+          #### Linux
+          1. 下载 `voidraft-linux-amd64`
+          2. 添加执行权限：`chmod +x voidraft-linux-amd64`
+          3. 运行：`./voidraft-linux-amd64`
+          
+          #### macOS
+          1. 下载对应架构的 zip 文件
+          2. 解压后运行
+          3. 如果提示无法打开，请在 系统偏好设置 > 安全性与隐私 中允许运行
+          
+          ---
+          
+          构建时间: $(date -u +"%Y-%m-%d %H:%M:%S UTC")
+          EOF
+
+      - name: 创建 GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: release/*
+          body_path: release_notes.md
+          draft: false
+          prerelease: ${{ github.event_name == 'workflow_dispatch' }}
+          tag_name: ${{ github.event_name == 'workflow_dispatch' && format('test-{0}', github.sha) || github.ref_name }}
+          name: ${{ github.event_name == 'workflow_dispatch' && format('测试构建 {0}', github.sha) || github.ref_name }}
+          generate_release_notes: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
--- a/Taskfile.yml
+++ b/Taskfile.yml
@@ -12,25 +12,13 @@ vars:
  VITE_PORT: '{{.WAILS_VITE_PORT | default 9245}}'

 tasks:
-  version:
-    summary: Generate version information
-    cmds:
-      - '{{if eq OS "windows"}}cmd /c ".\scripts\version.bat"{{else}}bash ./scripts/version.sh{{end}}'
-    sources:
-      - scripts/version.bat
-      - scripts/version.sh
-    generates:
-      - version.txt
-
  build:
    summary: Builds the application
-    deps: [version]
    cmds:
      - task: "{{OS}}:build"

  package:
    summary: Packages a production build of the application
-    deps: [version]
    cmds:
      - task: "{{OS}}:package"

--- a/build/COMMANDS.md
+++ b/build/COMMANDS.md
@@ -0,0 +1,293 @@
+# Wails 3 命令参考表
+
+本文档列出了 Voidraft 项目中使用的所有 Wails 3 命令和参数。
+
+## 📋 命令总览
+
+| 类别 | 命令 | 用途 |
+|------|------|------|
+| 生成工具 | `wails3 generate` | 生成项目所需的各种资源文件 |
+| 打包工具 | `wails3 tool package` | 使用 nfpm 打包应用程序 |
+| 任务执行 | `wails3 task` | 执行 Taskfile.yml 中定义的任务 |
+
+---
+
+## 🔧 详细命令参数
+
+### 1. `wails3 generate bindings`
+**生成 TypeScript 绑定文件**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-f` | 构建标志 | `''` (空字符串) |
+| `-clean` | 清理旧绑定 | `true` |
+| `-ts` | 生成 TypeScript | 无需值 |
+
+**使用位置：** `build/Taskfile.yml:53`
+
+**完整命令：**
+```bash
+wails3 generate bindings -f '' -clean=true -ts
+```
+
+---
+
+### 2. `wails3 generate icons`
+**从单个图片生成多平台图标**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-input` | 输入图片路径 | `appicon.png` |
+| `-macfilename` | macOS 图标输出路径 | `darwin/icons.icns` |
+| `-windowsfilename` | Windows 图标输出路径 | `windows/icons.ico` |
+
+**使用位置：** `build/Taskfile.yml:64`
+
+**完整命令：**
+```bash
+wails3 generate icons \
+  -input appicon.png \
+  -macfilename darwin/icons.icns \
+  -windowsfilename windows/icons.ico
+```
+
+---
+
+### 3. `wails3 generate syso`
+**生成 Windows .syso 资源文件**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-arch` | 目标架构 | `amd64` / `arm64` |
+| `-icon` | 图标文件 | `windows/icon.ico` |
+| `-manifest` | 清单文件 | `windows/wails.exe.manifest` |
+| `-info` | 应用信息 JSON | `windows/info.json` |
+| `-out` | 输出文件路径 | `../wails_windows_amd64.syso` |
+
+**使用位置：** `build/windows/Taskfile.yml:42`
+
+**完整命令：**
+```bash
+wails3 generate syso \
+  -arch amd64 \
+  -icon windows/icon.ico \
+  -manifest windows/wails.exe.manifest \
+  -info windows/info.json \
+  -out ../wails_windows_amd64.syso
+```
+
+---
+
+### 4. `wails3 generate webview2bootstrapper`
+**生成 Windows WebView2 引导程序**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-dir` | 输出目录 | `build/windows/nsis` |
+
+**使用位置：** `build/windows/Taskfile.yml:55`
+
+**完整命令：**
+```bash
+wails3 generate webview2bootstrapper -dir "build/windows/nsis"
+```
+
+**说明：** 下载 Microsoft Edge WebView2 运行时安装程序，用于 NSIS 打包。
+
+---
+
+### 5. `wails3 generate .desktop`
+**生成 Linux .desktop 桌面文件**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-name` | 应用名称 | `voidraft` |
+| `-exec` | 可执行文件名 | `voidraft` |
+| `-icon` | 图标名称 | `appicon` |
+| `-outputfile` | 输出文件路径 | `build/linux/voidraft.desktop` |
+| `-categories` | 应用分类 | `Development;` |
+
+**使用位置：** `build/linux/Taskfile.yml:107`
+
+**完整命令：**
+```bash
+wails3 generate .desktop \
+  -name "voidraft" \
+  -exec "voidraft" \
+  -icon "appicon" \
+  -outputfile build/linux/voidraft.desktop \
+  -categories "Development;"
+```
+
+---
+
+### 6. `wails3 generate appimage`
+**生成 Linux AppImage 包**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-binary` | 二进制文件名 | `voidraft` |
+| `-icon` | 图标文件路径 | `../../appicon.png` |
+| `-desktopfile` | .desktop 文件路径 | `../voidraft.desktop` |
+| `-outputdir` | 输出目录 | `../../../bin` |
+| `-builddir` | 构建临时目录 | `build/linux/appimage/build` |
+
+**使用位置：** `build/linux/Taskfile.yml:49`
+
+**完整命令：**
+```bash
+wails3 generate appimage \
+  -binary voidraft \
+  -icon ../../appicon.png \
+  -desktopfile ../voidraft.desktop \
+  -outputdir ../../../bin \
+  -builddir build/linux/appimage/build
+```
+
+**说明：** 自动下载 linuxdeploy 工具并创建 AppImage。
+
+---
+
+### 7. `wails3 tool package` (deb)
+**创建 Debian/Ubuntu .deb 包**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-name` | 包名称 | `voidraft` |
+| `-format` | 包格式 | `deb` |
+| `-config` | nfpm 配置文件 | `./build/linux/nfpm/nfpm.yaml` |
+| `-out` | 输出目录 | `./bin` |
+
+**使用位置：** `build/linux/Taskfile.yml:90`
+
+**完整命令：**
+```bash
+wails3 tool package \
+  -name voidraft \
+  -format deb \
+  -config ./build/linux/nfpm/nfpm.yaml \
+  -out ./bin
+```
+
+---
+
+### 8. `wails3 tool package` (rpm)
+**创建 RedHat/CentOS/Fedora .rpm 包**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-name` | 包名称 | `voidraft` |
+| `-format` | 包格式 | `rpm` |
+| `-config` | nfpm 配置文件 | `./build/linux/nfpm/nfpm.yaml` |
+| `-out` | 输出目录 | `./bin` |
+
+**使用位置：** `build/linux/Taskfile.yml:95`
+
+**完整命令：**
+```bash
+wails3 tool package \
+  -name voidraft \
+  -format rpm \
+  -config ./build/linux/nfpm/nfpm.yaml \
+  -out ./bin
+```
+
+---
+
+### 9. `wails3 tool package` (archlinux)
+**创建 Arch Linux .pkg.tar.zst 包**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `-name` | 包名称 | `voidraft` |
+| `-format` | 包格式 | `archlinux` |
+| `-config` | nfpm 配置文件 | `./build/linux/nfpm/nfpm.yaml` |
+| `-out` | 输出目录 | `./bin` |
+
+**使用位置：** `build/linux/Taskfile.yml:100`
+
+**完整命令：**
+```bash
+wails3 tool package \
+  -name voidraft \
+  -format archlinux \
+  -config ./build/linux/nfpm/nfpm.yaml \
+  -out ./bin
+```
+
+---
+
+### 10. `wails3 task`
+**执行 Taskfile.yml 中定义的任务**
+
+| 参数 | 说明 | 示例值 |
+|------|------|--------|
+| `[taskname]` | 任务名称 | `build`, `package`, `run` |
+| `[VAR=value]` | 变量赋值 | `PRODUCTION=true`, `ARCH=amd64` |
+
+**常用任务：**
+
+| 任务 | 说明 | 命令 |
+|------|------|------|
+| `build` | 构建应用 | `wails3 task build PRODUCTION=true` |
+| `package` | 打包应用 | `wails3 task package` |
+| `run` | 运行应用 | `wails3 task run` |
+
+**使用位置：** `build/config.yml`
+
+---
+
+## 📊 平台对应命令表
+
+| 平台 | 主要命令 | 产物 |
+|------|----------|------|
+| **Windows** | `generate syso`<br>`generate webview2bootstrapper` | `.syso` 资源文件<br>NSIS 安装程序 |
+| **Linux** | `generate .desktop`<br>`generate appimage`<br>`tool package -format deb/rpm/archlinux` | `.desktop` 文件<br>`.AppImage`<br>`.deb` / `.rpm` / `.pkg.tar.zst` |
+| **macOS** | `generate icons` | `.icns` 图标<br>`.app` 应用包 |
+| **通用** | `generate bindings`<br>`generate icons` | TypeScript 绑定<br>多平台图标 |
+
+---
+
+## 🚀 快速参考
+
+### 完整构建流程
+
+```bash
+# 1. 生成绑定和图标
+wails3 task common:generate:bindings
+wails3 task common:generate:icons
+
+# 2. 构建前端
+cd frontend
+npm install
+npm run build
+cd ..
+
+# 3. 构建应用（各平台）
+cd build/windows  && wails3 task build PRODUCTION=true  # Windows
+cd build/linux    && wails3 task build PRODUCTION=true  # Linux
+cd build/darwin   && wails3 task build PRODUCTION=true  # macOS
+
+# 4. 打包应用（各平台）
+cd build/windows  && wails3 task package  # NSIS 安装程序
+cd build/linux    && wails3 task package  # AppImage + deb + rpm + archlinux
+cd build/darwin   && wails3 task package  # .app bundle
+```
+
+---
+
+## 📝 注意事项
+
+1. **变量传递：** Task 命令支持通过 `VAR=value` 格式传递变量
+2. **路径问题：** 相对路径基于 Taskfile.yml 所在目录
+3. **依赖顺序：** 某些任务有依赖关系（通过 `deps:` 定义）
+4. **环境变量：** 使用 `env:` 定义的环境变量会自动设置
+
+---
+
+## 🔗 相关文档
+
+- [Wails 3 官方文档](https://v3alpha.wails.io/)
+- [Taskfile 语法](https://taskfile.dev/)
+- [nfpm 打包工具](https://nfpm.goreleaser.com/)
+
--- a/build/darwin/icons.icns
+++ b/build/darwin/icons.icns
--- a/build/linux/appimage/appicon.png
+++ b/build/linux/appimage/appicon.png
--- a/build/windows/Taskfile.yml
+++ b/build/windows/Taskfile.yml
@@ -39,7 +39,7 @@ tasks:
    summary: Generates Windows `.syso` file
    dir: build
    cmds:
-      - wails3 generate syso -arch {{.ARCH}} -icon windows/favicon_256x256.ico -manifest windows/wails.exe.manifest -info windows/info.json -out ../wails_windows_{{.ARCH}}.syso
+      - wails3 generate syso -arch {{.ARCH}} -icon windows/icon.ico -manifest windows/wails.exe.manifest -info windows/info.json -out ../wails_windows_{{.ARCH}}.syso
    vars:
      ARCH: '{{.ARCH | default ARCH}}'

--- a/frontend/bindings/github.com/wailsapp/wails/v3/pkg/application/models.ts
+++ b/frontend/bindings/github.com/wailsapp/wails/v3/pkg/application/models.ts
@@ -62,19 +62,4 @@ export class ServiceOptions {
    }
 }

-export class WebviewWindow {
-
-    /** Creates a new WebviewWindow instance. */
-    constructor($$source: Partial<WebviewWindow> = {}) {
-
-        Object.assign(this, $$source);
-    }
-
-    /**
-     * Creates a new WebviewWindow instance from a string or object.
-     */
-    static createFrom($$source: any = {}): WebviewWindow {
-        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
-        return new WebviewWindow($$parsedSource as Partial<WebviewWindow>);
-    }
-}
+export type Window = any;
--- a/frontend/bindings/voidraft/internal/services/configservice.ts
+++ b/frontend/bindings/voidraft/internal/services/configservice.ts
@@ -10,10 +10,17 @@
 // @ts-ignore: Unused imports
 import {Call as $Call, Create as $Create} from "@wailsio/runtime";

+// eslint-disable-next-line @typescript-eslint/ban-ts-comment
+// @ts-ignore: Unused imports
+import * as application$0 from "../../../github.com/wailsapp/wails/v3/pkg/application/models.js";
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
 import * as models$0 from "../models/models.js";

+// eslint-disable-next-line @typescript-eslint/ban-ts-comment
+// @ts-ignore: Unused imports
+import * as $models from "./models.js";
+
 /**
 * Get 获取配置项
 */
@@ -34,22 +41,6 @@ export function GetConfig(): Promise<models$0.AppConfig | null> & { cancel(): vo
    return $typingPromise;
 }

-/**
- * GetConfigDir 获取配置目录
- */
-export function GetConfigDir(): Promise<string> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(2275626561) as any;
-    return $resultPromise;
-}
-
-/**
- * GetSettingsPath 获取设置文件路径
- */
-export function GetSettingsPath(): Promise<string> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(2175583370) as any;
-    return $resultPromise;
-}
-
 /**
 * MigrateConfig 执行配置迁移
 */
@@ -74,6 +65,14 @@ export function ServiceShutdown(): Promise<void> & { cancel(): void } {
    return $resultPromise;
 }

+/**
+ * ServiceStartup initializes the service when the application starts
+ */
+export function ServiceStartup(options: application$0.ServiceOptions): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(3311949428, options) as any;
+    return $resultPromise;
+}
+
 /**
 * Set 设置配置项
 */
@@ -83,34 +82,18 @@ export function Set(key: string, value: any): Promise<void> & { cancel(): void }
 }

 /**
- * SetBackupConfigChangeCallback 设置备份配置变更回调
+ * Watch 注册配置变更监听器
 */
-export function SetBackupConfigChangeCallback(callback: any): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(3264871659, callback) as any;
+export function Watch(path: string, callback: $models.ObserverCallback): Promise<$models.CancelFunc> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(1143583035, path, callback) as any;
    return $resultPromise;
 }

 /**
- * SetDataPathChangeCallback 设置数据路径配置变更回调
+ * WatchWithContext 使用 Context 注册监听器
 */
-export function SetDataPathChangeCallback(callback: any): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(393017412, callback) as any;
-    return $resultPromise;
-}
-
-/**
- * SetHotkeyChangeCallback 设置热键配置变更回调
- */
-export function SetHotkeyChangeCallback(callback: any): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(283872321, callback) as any;
-    return $resultPromise;
-}
-
-/**
- * SetWindowSnapConfigChangeCallback 设置窗口吸附配置变更回调
- */
-export function SetWindowSnapConfigChangeCallback(callback: any): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(2324961653, callback) as any;
+export function WatchWithContext(path: string, callback: $models.ObserverCallback): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(1454973098, path, callback) as any;
    return $resultPromise;
 }

--- a/frontend/bindings/voidraft/internal/services/databaseservice.ts
+++ b/frontend/bindings/voidraft/internal/services/databaseservice.ts
@@ -14,14 +14,6 @@ import {Call as $Call, Create as $Create} from "@wailsio/runtime";
 // @ts-ignore: Unused imports
 import * as application$0 from "../../../github.com/wailsapp/wails/v3/pkg/application/models.js";

-/**
- * OnDataPathChanged handles data path changes
- */
-export function OnDataPathChanged(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(3652863491) as any;
-    return $resultPromise;
-}
-
 /**
 * RegisterModel 注册模型与表的映射关系
 */
--- a/frontend/bindings/voidraft/internal/services/hotkeyservice.ts
+++ b/frontend/bindings/voidraft/internal/services/hotkeyservice.ts
@@ -2,7 +2,7 @@
 // This file is automatically generated. DO NOT EDIT

 /**
- * HotkeyService Windows全局热键服务
+ * HotkeyService 全局热键服务
 * @module
 */

@@ -48,8 +48,8 @@ export function IsRegistered(): Promise<boolean> & { cancel(): void } {
 /**
 * RegisterHotkey 注册全局热键
 */
-export function RegisterHotkey(hotkey: models$0.HotkeyCombo | null): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(1103945691, hotkey) as any;
+export function RegisterHotkey(combo: models$0.HotkeyCombo | null): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(1103945691, combo) as any;
    return $resultPromise;
 }

@@ -62,7 +62,7 @@ export function ServiceShutdown(): Promise<void> & { cancel(): void } {
 }

 /**
- * ServiceStartup initializes the service when the application starts
+ * ServiceStartup 服务启动时初始化
 */
 export function ServiceStartup(options: application$0.ServiceOptions): Promise<void> & { cancel(): void } {
    let $resultPromise = $Call.ByID(3079990808, options) as any;
@@ -80,8 +80,8 @@ export function UnregisterHotkey(): Promise<void> & { cancel(): void } {
 /**
 * UpdateHotkey 更新热键配置
 */
-export function UpdateHotkey(enable: boolean, hotkey: models$0.HotkeyCombo | null): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(823285555, enable, hotkey) as any;
+export function UpdateHotkey(enable: boolean, combo: models$0.HotkeyCombo | null): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(823285555, enable, combo) as any;
    return $resultPromise;
 }

--- a/frontend/bindings/voidraft/internal/services/models.ts
+++ b/frontend/bindings/voidraft/internal/services/models.ts
@@ -5,9 +5,6 @@
 // @ts-ignore: Unused imports
 import {Create as $Create} from "@wailsio/runtime";

-// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-// @ts-ignore: Unused imports
-import * as application$0 from "../../../github.com/wailsapp/wails/v3/pkg/application/models.js";
 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
 import * as http$0 from "../../../net/http/models.js";
@@ -15,6 +12,12 @@ import * as http$0 from "../../../net/http/models.js";
 // @ts-ignore: Unused imports
 import * as time$0 from "../../../time/models.js";

+/**
+ * CancelFunc 取消订阅函数
+ * 调用此函数可以取消对配置的监听
+ */
+export type CancelFunc = any;
+
 /**
 * HttpRequest HTTP请求结构
 */
@@ -263,6 +266,11 @@ export class OSInfo {
    }
 }

+/**
+ * ObserverCallback 观察者回调函数
+ */
+export type ObserverCallback = any;
+
 /**
 * SelfUpdateResult 自我更新结果
 */
@@ -394,62 +402,6 @@ export class SystemInfo {
    }
 }

-/**
- * WindowInfo 窗口信息
- */
-export class WindowInfo {
-    "Window": application$0.WebviewWindow | null;
-    "DocumentID": number;
-    "Title": string;
-
-    /** Creates a new WindowInfo instance. */
-    constructor($$source: Partial<WindowInfo> = {}) {
-        if (!("Window" in $$source)) {
-            this["Window"] = null;
-        }
-        if (!("DocumentID" in $$source)) {
-            this["DocumentID"] = 0;
-        }
-        if (!("Title" in $$source)) {
-            this["Title"] = "";
-        }
-
-        Object.assign(this, $$source);
-    }
-
-    /**
-     * Creates a new WindowInfo instance from a string or object.
-     */
-    static createFrom($$source: any = {}): WindowInfo {
-        const $$createField0_0 = $$createType8;
-        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
-        if ("Window" in $$parsedSource) {
-            $$parsedSource["Window"] = $$createField0_0($$parsedSource["Window"]);
-        }
-        return new WindowInfo($$parsedSource as Partial<WindowInfo>);
-    }
-}
-
-/**
- * WindowSnapService 窗口吸附服务
- */
-export class WindowSnapService {
-
-    /** Creates a new WindowSnapService instance. */
-    constructor($$source: Partial<WindowSnapService> = {}) {
-
-        Object.assign(this, $$source);
-    }
-
-    /**
-     * Creates a new WindowSnapService instance from a string or object.
-     */
-    static createFrom($$source: any = {}): WindowSnapService {
-        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
-        return new WindowSnapService($$parsedSource as Partial<WindowSnapService>);
-    }
-}
-
 // Private type creation functions
 const $$createType0 = $Create.Map($Create.Any, $Create.Any);
 var $$createType1 = (function $$initCreateType1(...args): any {
@@ -463,5 +415,3 @@ const $$createType3 = $Create.Map($Create.Any, $$createType2);
 const $$createType4 = OSInfo.createFrom;
 const $$createType5 = $Create.Nullable($$createType4);
 const $$createType6 = $Create.Map($Create.Any, $Create.Any);
-const $$createType7 = application$0.WebviewWindow.createFrom;
-const $$createType8 = $Create.Nullable($$createType7);
--- a/frontend/bindings/voidraft/internal/services/trayservice.ts
+++ b/frontend/bindings/voidraft/internal/services/trayservice.ts
@@ -10,6 +10,14 @@
 // @ts-ignore: Unused imports
 import {Call as $Call, Create as $Create} from "@wailsio/runtime";

+/**
+ * AutoShowHide 自动显示/隐藏主窗口
+ */
+export function AutoShowHide(): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(4044219428) as any;
+    return $resultPromise;
+}
+
 /**
 * HandleWindowClose 处理窗口关闭事件
 */
--- a/frontend/bindings/voidraft/internal/services/windowservice.ts
+++ b/frontend/bindings/voidraft/internal/services/windowservice.ts
@@ -2,7 +2,7 @@
 // This file is automatically generated. DO NOT EDIT

 /**
- * WindowService 窗口管理服务（专注于窗口生命周期管理）
+ * WindowService 窗口管理服务
 * @module
 */

@@ -12,15 +12,15 @@ import {Call as $Call, Create as $Create} from "@wailsio/runtime";

 // eslint-disable-next-line @typescript-eslint/ban-ts-comment
 // @ts-ignore: Unused imports
-import * as $models from "./models.js";
+import * as application$0 from "../../../github.com/wailsapp/wails/v3/pkg/application/models.js";

 /**
- * GetOpenWindows 获取所有打开的窗口信息
+ * GetOpenWindows 获取所有打开的文档窗口
 */
-export function GetOpenWindows(): Promise<$models.WindowInfo[]> & { cancel(): void } {
+export function GetOpenWindows(): Promise<application$0.Window[]> & { cancel(): void } {
    let $resultPromise = $Call.ByID(1464997251) as any;
    let $typingPromise = $resultPromise.then(($result: any) => {
-        return $$createType1($result);
+        return $$createType0($result);
    }) as any;
    $typingPromise.cancel = $resultPromise.cancel.bind($resultPromise);
    return $typingPromise;
@@ -51,13 +51,12 @@ export function ServiceShutdown(): Promise<void> & { cancel(): void } {
 }

 /**
- * SetWindowSnapService 设置窗口吸附服务引用
+ * ServiceStartup 服务启动时初始化
 */
-export function SetWindowSnapService(snapService: $models.WindowSnapService | null): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(1105193745, snapService) as any;
+export function ServiceStartup(options: application$0.ServiceOptions): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(2432987694, options) as any;
    return $resultPromise;
 }

 // Private type creation functions
-const $$createType0 = $models.WindowInfo.createFrom;
-const $$createType1 = $Create.Array($$createType0);
+const $$createType0 = $Create.Array($Create.Any);
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -11,10 +11,15 @@
    "lint": "eslint",
    "lint:fix": "eslint --fix",
    "build:lang-parser": "node src/views/editor/extensions/codeblock/lang-parser/build-parser.js",
+    "build:mermaid-parser": "node src/views/editor/language/mermaid/build-parsers.js",
    "test": "vitest",
    "docs:dev": "vitepress dev docs",
    "docs:build": "vitepress build docs",
-    "docs:preview": "vitepress preview docs"
+    "docs:preview": "vitepress preview docs",
+    "app:dev": "cd .. &&wails3 dev",
+    "app:build": "cd .. && wails3 task build",
+    "app:package": "cd .. && wails3 package",
+    "app:generate": "cd .. && wails3 generate bindings -ts"
  },
  "dependencies": {
    "@codemirror/autocomplete": "^6.19.1",
@@ -42,56 +47,64 @@
    "@codemirror/language": "^6.11.3",
    "@codemirror/language-data": "^6.5.2",
    "@codemirror/legacy-modes": "^6.5.2",
-    "@codemirror/lint": "^6.9.1",
+    "@codemirror/lint": "^6.9.2",
    "@codemirror/search": "^6.5.11",
    "@codemirror/state": "^6.5.2",
    "@codemirror/view": "^6.38.6",
    "@cospaia/prettier-plugin-clojure": "^0.0.2",
    "@lezer/highlight": "^1.2.3",
-    "@lezer/lr": "^1.4.2",
+    "@lezer/lr": "^1.4.3",
+    "@mdit/plugin-katex": "^0.23.2",
+    "@mdit/plugin-tasklist": "^0.22.2",
    "@prettier/plugin-xml": "^3.4.2",
    "@replit/codemirror-lang-svelte": "^6.0.0",
    "@toml-tools/lexer": "^1.0.0",
    "@toml-tools/parser": "^1.0.0",
+    "@types/markdown-it": "^14.1.2",
    "codemirror": "^6.0.2",
    "codemirror-lang-elixir": "^4.0.0",
    "colors-named": "^1.0.2",
    "colors-named-hex": "^1.0.2",
    "groovy-beautify": "^0.0.17",
+    "highlight.js": "^11.11.1",
    "hsl-matcher": "^1.2.4",
    "java-parser": "^3.0.1",
-    "jsox": "^1.2.123",
    "linguist-languages": "^9.1.0",
+    "markdown-it": "^14.1.0",
+    "mermaid": "^11.12.1",
+    "npm": "^11.6.2",
    "php-parser": "^3.2.5",
-    "pinia": "^3.0.3",
+    "pinia": "^3.0.4",
    "pinia-plugin-persistedstate": "^4.7.1",
    "prettier": "^3.6.2",
-    "remarkable": "^2.0.1",
-    "sass": "^1.93.3",
-    "vue": "^3.5.22",
+    "sass": "^1.94.0",
+    "vue": "^3.5.24",
    "vue-i18n": "^11.1.12",
    "vue-pick-colors": "^1.8.0",
    "vue-router": "^4.6.3"
  },
  "devDependencies": {
-    "@eslint/js": "^9.39.0",
+    "@eslint/js": "^9.39.1",
    "@lezer/generator": "^1.8.0",
    "@types/node": "^24.9.2",
-    "@types/remarkable": "^2.0.8",
    "@vitejs/plugin-vue": "^6.0.1",
    "@wailsio/runtime": "latest",
    "cross-env": "^10.1.0",
-    "eslint": "^9.39.0",
+    "eslint": "^9.39.1",
    "eslint-plugin-vue": "^10.5.1",
    "globals": "^16.5.0",
+    "happy-dom": "^20.0.10",
    "typescript": "^5.9.3",
-    "typescript-eslint": "^8.46.2",
+    "typescript-eslint": "^8.46.4",
    "unplugin-vue-components": "^30.0.0",
-    "vite": "^7.1.12",
+    "vite": "npm:rolldown-vite@latest",
    "vite-plugin-node-polyfills": "^0.24.0",
    "vitepress": "^2.0.0-alpha.12",
-    "vitest": "^4.0.6",
+    "vitest": "^4.0.8",
    "vue-eslint-parser": "^10.2.0",
-    "vue-tsc": "^3.1.2"
+    "vue-tsc": "^3.1.3"
+  },
+  "overrides": {
+    "vite": "npm:rolldown-vite@latest"
  }
 }
--- a/frontend/src/common/markdown-it/plugins/markdown-it-abbr/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-abbr/index.ts
@@ -0,0 +1,159 @@
+// Enclose abbreviations in <abbr> tags
+//
+import MarkdownIt, {StateBlock, StateCore, Token} from 'markdown-it';
+
+/**
+ * 环境接口，包含缩写定义
+ */
+interface AbbrEnv {
+    abbreviations?: { [key: string]: string };
+}
+
+/**
+ * markdown-it-abbr 插件
+ * 用于支持缩写语法
+ */
+export default function abbr_plugin(md: MarkdownIt): void {
+    const escapeRE = md.utils.escapeRE;
+    const arrayReplaceAt = md.utils.arrayReplaceAt;
+
+    // ASCII characters in Cc, Sc, Sm, Sk categories we should terminate on;
+    // you can check character classes here:
+    // http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
+    const OTHER_CHARS = ' \r\n$+<=>^`|~';
+
+    const UNICODE_PUNCT_RE = md.utils.lib.ucmicro.P.source;
+    const UNICODE_SPACE_RE = md.utils.lib.ucmicro.Z.source;
+
+    function abbr_def(state: StateBlock, startLine: number, endLine: number, silent: boolean): boolean {
+        let labelEnd: number;
+        let pos = state.bMarks[startLine] + state.tShift[startLine];
+        const max = state.eMarks[startLine];
+
+        if (pos + 2 >= max) { return false; }
+
+        if (state.src.charCodeAt(pos++) !== 0x2A/* * */) { return false; }
+        if (state.src.charCodeAt(pos++) !== 0x5B/* [ */) { return false; }
+
+        const labelStart = pos;
+
+        for (; pos < max; pos++) {
+            const ch = state.src.charCodeAt(pos);
+            if (ch === 0x5B /* [ */) {
+                return false;
+            } else if (ch === 0x5D /* ] */) {
+                labelEnd = pos;
+                break;
+            } else if (ch === 0x5C /* \ */) {
+                pos++;
+            }
+        }
+
+        if (labelEnd! < 0 || state.src.charCodeAt(labelEnd! + 1) !== 0x3A/* : */) {
+            return false;
+        }
+
+        if (silent) { return true; }
+
+        const label = state.src.slice(labelStart, labelEnd!).replace(/\\(.)/g, '$1');
+        const title = state.src.slice(labelEnd! + 2, max).trim();
+        if (label.length === 0) { return false; }
+        if (title.length === 0) { return false; }
+        
+        const env = state.env as AbbrEnv;
+        if (!env.abbreviations) { env.abbreviations = {}; }
+        // prepend ':' to avoid conflict with Object.prototype members
+        if (typeof env.abbreviations[':' + label] === 'undefined') {
+            env.abbreviations[':' + label] = title;
+        }
+
+        state.line = startLine + 1;
+        return true;
+    }
+
+    function abbr_replace(state: StateCore): void {
+        const blockTokens = state.tokens;
+
+        const env = state.env as AbbrEnv;
+        if (!env.abbreviations) { return; }
+
+        const regSimple = new RegExp('(?:' +
+            Object.keys(env.abbreviations).map(function (x: string) {
+                return x.substr(1);
+            }).sort(function (a: string, b: string) {
+                return b.length - a.length;
+            }).map(escapeRE).join('|') +
+            ')');
+
+        const regText = '(^|' + UNICODE_PUNCT_RE + '|' + UNICODE_SPACE_RE +
+            '|[' + OTHER_CHARS.split('').map(escapeRE).join('') + '])' +
+            '(' + Object.keys(env.abbreviations).map(function (x: string) {
+                return x.substr(1);
+            }).sort(function (a: string, b: string) {
+                return b.length - a.length;
+            }).map(escapeRE).join('|') + ')' +
+            '($|' + UNICODE_PUNCT_RE + '|' + UNICODE_SPACE_RE +
+            '|[' + OTHER_CHARS.split('').map(escapeRE).join('') + '])'
+
+        const reg = new RegExp(regText, 'g');
+
+        for (let j = 0, l = blockTokens.length; j < l; j++) {
+            if (blockTokens[j].type !== 'inline') { continue; }
+            let tokens = blockTokens[j].children!;
+
+            // We scan from the end, to keep position when new tags added.
+            for (let i = tokens.length - 1; i >= 0; i--) {
+                const currentToken = tokens[i];
+                if (currentToken.type !== 'text') { continue; }
+
+                let pos = 0;
+                const text = currentToken.content;
+                reg.lastIndex = 0;
+                const nodes: Token[] = [];
+
+                // fast regexp run to determine whether there are any abbreviated words
+                // in the current token
+                if (!regSimple.test(text)) { continue; }
+
+                let m: RegExpExecArray | null;
+
+                while ((m = reg.exec(text))) {
+                    if (m.index > 0 || m[1].length > 0) {
+                        const token = new state.Token('text', '', 0);
+                        token.content = text.slice(pos, m.index + m[1].length);
+                        nodes.push(token);
+                    }
+
+                    const token_o = new state.Token('abbr_open', 'abbr', 1);
+                    token_o.attrs = [['title', env.abbreviations[':' + m[2]]]];
+                    nodes.push(token_o);
+
+                    const token_t = new state.Token('text', '', 0);
+                    token_t.content = m[2];
+                    nodes.push(token_t);
+
+                    const token_c = new state.Token('abbr_close', 'abbr', -1);
+                    nodes.push(token_c);
+
+                    reg.lastIndex -= m[3].length;
+                    pos = reg.lastIndex;
+                }
+
+                if (!nodes.length) { continue; }
+
+                if (pos < text.length) {
+                    const token = new state.Token('text', '', 0);
+                    token.content = text.slice(pos);
+                    nodes.push(token);
+                }
+
+                // replace current node
+                blockTokens[j].children = tokens = arrayReplaceAt(tokens, i, nodes);
+            }
+        }
+    }
+
+    md.block.ruler.before('reference', 'abbr_def', abbr_def, { alt: ['paragraph', 'reference'] });
+
+    md.core.ruler.after('linkify', 'abbr_replace', abbr_replace);
+}
--- a/frontend/src/common/markdown-it/plugins/markdown-it-deflist/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-deflist/index.ts
@@ -0,0 +1,209 @@
+// Process definition lists
+//
+import MarkdownIt, { StateBlock, Token } from 'markdown-it';
+
+/**
+ * markdown-it-deflist 插件
+ * 用于支持定义列表语法
+ */
+export default function deflist_plugin(md: MarkdownIt): void {
+    const isSpace = md.utils.isSpace;
+
+    // Search `[:~][\n ]`, returns next pos after marker on success
+    // or -1 on fail.
+    function skipMarker(state: StateBlock, line: number): number {
+        let start = state.bMarks[line] + state.tShift[line];
+        const max = state.eMarks[line];
+
+        if (start >= max) { return -1; }
+
+        // Check bullet
+        const marker = state.src.charCodeAt(start++);
+        if (marker !== 0x7E/* ~ */ && marker !== 0x3A/* : */) { return -1; }
+
+        const pos = state.skipSpaces(start);
+
+        // require space after ":"
+        if (start === pos) { return -1; }
+
+        // no empty definitions, e.g. "  : "
+        if (pos >= max) { return -1; }
+
+        return start;
+    }
+
+    function markTightParagraphs(state: StateBlock, idx: number): void {
+        const level = state.level + 2;
+
+        for (let i = idx + 2, l = state.tokens.length - 2; i < l; i++) {
+            if (state.tokens[i].level === level && state.tokens[i].type === 'paragraph_open') {
+                state.tokens[i + 2].hidden = true;
+                state.tokens[i].hidden = true;
+                i += 2;
+            }
+        }
+    }
+
+    function deflist(state: StateBlock, startLine: number, endLine: number, silent: boolean): boolean {
+        if (silent) {
+            // quirk: validation mode validates a dd block only, not a whole deflist
+            if (state.ddIndent < 0) { return false; }
+            return skipMarker(state, startLine) >= 0;
+        }
+
+        let nextLine = startLine + 1;
+        if (nextLine >= endLine) { return false; }
+
+        if (state.isEmpty(nextLine)) {
+            nextLine++;
+            if (nextLine >= endLine) { return false; }
+        }
+
+        if (state.sCount[nextLine] < state.blkIndent) { return false; }
+        let contentStart = skipMarker(state, nextLine);
+        if (contentStart < 0) { return false; }
+
+        // Start list
+        const listTokIdx = state.tokens.length;
+        let tight = true;
+
+        const token_dl_o: Token = state.push('dl_open', 'dl', 1);
+        const listLines: [number, number] = [startLine, 0];
+        token_dl_o.map = listLines;
+
+        //
+        // Iterate list items
+        //
+
+        let dtLine = startLine;
+        let ddLine = nextLine;
+
+        // One definition list can contain multiple DTs,
+        // and one DT can be followed by multiple DDs.
+        //
+        // Thus, there is two loops here, and label is
+        // needed to break out of the second one
+        //
+        /* eslint no-labels:0,block-scoped-var:0 */
+        OUTER:
+            for (;;) {
+                let prevEmptyEnd = false;
+
+                const token_dt_o: Token = state.push('dt_open', 'dt', 1);
+                token_dt_o.map = [dtLine, dtLine];
+
+                const token_i: Token = state.push('inline', '', 0);
+                token_i.map = [dtLine, dtLine];
+                token_i.content = state.getLines(dtLine, dtLine + 1, state.blkIndent, false).trim();
+                token_i.children = [];
+
+                state.push('dt_close', 'dt', -1);
+
+                for (;;) {
+                    const token_dd_o: Token = state.push('dd_open', 'dd', 1);
+                    const itemLines: [number, number] = [nextLine, 0];
+                    token_dd_o.map = itemLines;
+
+                    let pos = contentStart;
+                    const max = state.eMarks[ddLine];
+                    let offset = state.sCount[ddLine] + contentStart - (state.bMarks[ddLine] + state.tShift[ddLine]);
+
+                    while (pos < max) {
+                        const ch = state.src.charCodeAt(pos);
+
+                        if (isSpace(ch)) {
+                            if (ch === 0x09) {
+                                offset += 4 - offset % 4;
+                            } else {
+                                offset++;
+                            }
+                        } else {
+                            break;
+                        }
+
+                        pos++;
+                    }
+
+                    contentStart = pos;
+
+                    const oldTight = state.tight;
+                    const oldDDIndent = state.ddIndent;
+                    const oldIndent = state.blkIndent;
+                    const oldTShift = state.tShift[ddLine];
+                    const oldSCount = state.sCount[ddLine];
+                    const oldParentType = state.parentType;
+                    state.blkIndent = state.ddIndent = state.sCount[ddLine] + 2;
+                    state.tShift[ddLine] = contentStart - state.bMarks[ddLine];
+                    state.sCount[ddLine] = offset;
+                    state.tight = true;
+                    state.parentType = 'deflist' as any;
+
+                    state.md.block.tokenize(state, ddLine, endLine);
+
+                    // If any of list item is tight, mark list as tight
+                    if (!state.tight || prevEmptyEnd) {
+                        tight = false;
+                    }
+                    // Item become loose if finish with empty line,
+                    // but we should filter last element, because it means list finish
+                    prevEmptyEnd = (state.line - ddLine) > 1 && state.isEmpty(state.line - 1);
+
+                    state.tShift[ddLine] = oldTShift;
+                    state.sCount[ddLine] = oldSCount;
+                    state.tight = oldTight;
+                    state.parentType = oldParentType;
+                    state.blkIndent = oldIndent;
+                    state.ddIndent = oldDDIndent;
+
+                    state.push('dd_close', 'dd', -1);
+
+                    itemLines[1] = nextLine = state.line;
+
+                    if (nextLine >= endLine) { break OUTER; }
+
+                    if (state.sCount[nextLine] < state.blkIndent) { break OUTER; }
+                    contentStart = skipMarker(state, nextLine);
+                    if (contentStart < 0) { break; }
+
+                    ddLine = nextLine;
+
+                    // go to the next loop iteration:
+                    // insert DD tag and repeat checking
+                }
+
+                if (nextLine >= endLine) { break; }
+                dtLine = nextLine;
+
+                if (state.isEmpty(dtLine)) { break; }
+                if (state.sCount[dtLine] < state.blkIndent) { break; }
+
+                ddLine = dtLine + 1;
+                if (ddLine >= endLine) { break; }
+                if (state.isEmpty(ddLine)) { ddLine++; }
+                if (ddLine >= endLine) { break; }
+
+                if (state.sCount[ddLine] < state.blkIndent) { break; }
+                contentStart = skipMarker(state, ddLine);
+                if (contentStart < 0) { break; }
+
+                // go to the next loop iteration:
+                // insert DT and DD tags and repeat checking
+            }
+
+        // Finilize list
+        state.push('dl_close', 'dl', -1);
+
+        listLines[1] = nextLine;
+
+        state.line = nextLine;
+
+        // mark paragraphs tight if needed
+        if (tight) {
+            markTightParagraphs(state, listTokIdx);
+        }
+
+        return true;
+    }
+
+    md.block.ruler.before('paragraph', 'deflist', deflist, { alt: ['paragraph', 'reference', 'blockquote'] });
+}
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/index.ts
@@ -0,0 +1,4 @@
+export { default as bare } from './lib/bare';
+export { default as light } from './lib/light';
+export { default as full } from './lib/full';
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/bare.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/bare.ts
@@ -0,0 +1,26 @@
+import MarkdownIt from 'markdown-it';
+import emoji_html from './render';
+import emoji_replace from './replace';
+import normalize_opts, { EmojiOptions } from './normalize_opts';
+
+/**
+ * Bare emoji 插件（不包含预定义的 emoji 数据）
+ */
+export default function emoji_plugin(md: MarkdownIt, options?: Partial<EmojiOptions>): void {
+    const defaults: EmojiOptions = {
+        defs: {},
+        shortcuts: {},
+        enabled: []
+    };
+
+    const opts = normalize_opts(md.utils.assign({}, defaults, options || {}) as EmojiOptions);
+
+    md.renderer.rules.emoji = emoji_html;
+
+    md.core.ruler.after(
+        'linkify',
+        'emoji',
+        emoji_replace(md, opts.defs, opts.shortcuts, opts.scanRE, opts.replaceRE)
+    );
+}
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/data/full.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/data/full.ts
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/data/light.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/data/light.ts
@@ -0,0 +1,158 @@
+// Generated, don't edit
+import { EmojiDefs } from '../normalize_opts';
+
+const emojies: EmojiDefs = {
+    "grinning": "😀",
+    "smiley": "😃",
+    "smile": "😄",
+    "grin": "😁",
+    "laughing": "😆",
+    "satisfied": "😆",
+    "sweat_smile": "😅",
+    "joy": "😂",
+    "wink": "😉",
+    "blush": "😊",
+    "innocent": "😇",
+    "heart_eyes": "😍",
+    "kissing_heart": "😘",
+    "kissing": "😗",
+    "kissing_closed_eyes": "😚",
+    "kissing_smiling_eyes": "😙",
+    "yum": "😋",
+    "stuck_out_tongue": "😛",
+    "stuck_out_tongue_winking_eye": "😜",
+    "stuck_out_tongue_closed_eyes": "😝",
+    "neutral_face": "😐",
+    "expressionless": "😑",
+    "no_mouth": "😶",
+    "smirk": "😏",
+    "unamused": "😒",
+    "relieved": "😌",
+    "pensive": "😔",
+    "sleepy": "😪",
+    "sleeping": "😴",
+    "mask": "😷",
+    "dizzy_face": "😵",
+    "sunglasses": "😎",
+    "confused": "😕",
+    "worried": "😟",
+    "open_mouth": "😮",
+    "hushed": "😯",
+    "astonished": "😲",
+    "flushed": "😳",
+    "frowning": "😦",
+    "anguished": "😧",
+    "fearful": "😨",
+    "cold_sweat": "😰",
+    "disappointed_relieved": "😥",
+    "cry": "😢",
+    "sob": "😭",
+    "scream": "😱",
+    "confounded": "😖",
+    "persevere": "😣",
+    "disappointed": "😞",
+    "sweat": "😓",
+    "weary": "😩",
+    "tired_face": "😫",
+    "rage": "😡",
+    "pout": "😡",
+    "angry": "😠",
+    "smiling_imp": "😈",
+    "smiley_cat": "😺",
+    "smile_cat": "😸",
+    "joy_cat": "😹",
+    "heart_eyes_cat": "😻",
+    "smirk_cat": "😼",
+    "kissing_cat": "😽",
+    "scream_cat": "🙀",
+    "crying_cat_face": "😿",
+    "pouting_cat": "😾",
+    "heart": "❤️",
+    "hand": "✋",
+    "raised_hand": "✋",
+    "v": "✌️",
+    "point_up": "☝️",
+    "fist_raised": "✊",
+    "fist": "✊",
+    "monkey_face": "🐵",
+    "cat": "🐱",
+    "cow": "🐮",
+    "mouse": "🐭",
+    "coffee": "☕",
+    "hotsprings": "♨️",
+    "anchor": "⚓",
+    "airplane": "✈️",
+    "hourglass": "⌛",
+    "watch": "⌚",
+    "sunny": "☀️",
+    "star": "⭐",
+    "cloud": "☁️",
+    "umbrella": "☔",
+    "zap": "⚡",
+    "snowflake": "❄️",
+    "sparkles": "✨",
+    "black_joker": "🃏",
+    "mahjong": "🀄",
+    "phone": "☎️",
+    "telephone": "☎️",
+    "envelope": "✉️",
+    "pencil2": "✏️",
+    "black_nib": "✒️",
+    "scissors": "✂️",
+    "wheelchair": "♿",
+    "warning": "⚠️",
+    "aries": "♈",
+    "taurus": "♉",
+    "gemini": "♊",
+    "cancer": "♋",
+    "leo": "♌",
+    "virgo": "♍",
+    "libra": "♎",
+    "scorpius": "♏",
+    "sagittarius": "♐",
+    "capricorn": "♑",
+    "aquarius": "♒",
+    "pisces": "♓",
+    "heavy_multiplication_x": "✖️",
+    "heavy_plus_sign": "➕",
+    "heavy_minus_sign": "➖",
+    "heavy_division_sign": "➗",
+    "bangbang": "‼️",
+    "interrobang": "⁉️",
+    "question": "❓",
+    "grey_question": "❔",
+    "grey_exclamation": "❕",
+    "exclamation": "❗",
+    "heavy_exclamation_mark": "❗",
+    "wavy_dash": "〰️",
+    "recycle": "♻️",
+    "white_check_mark": "✅",
+    "ballot_box_with_check": "☑️",
+    "heavy_check_mark": "✔️",
+    "x": "❌",
+    "negative_squared_cross_mark": "❎",
+    "curly_loop": "➰",
+    "loop": "➿",
+    "part_alternation_mark": "〽️",
+    "eight_spoked_asterisk": "✳️",
+    "eight_pointed_black_star": "✴️",
+    "sparkle": "❇️",
+    "copyright": "©️",
+    "registered": "®️",
+    "tm": "™️",
+    "information_source": "ℹ️",
+    "m": "Ⓜ️",
+    "black_circle": "⚫",
+    "white_circle": "⚪",
+    "black_large_square": "⬛",
+    "white_large_square": "⬜",
+    "black_medium_square": "◼️",
+    "white_medium_square": "◻️",
+    "black_medium_small_square": "◾",
+    "white_medium_small_square": "◽",
+    "black_small_square": "▪️",
+    "white_small_square": "▫️"
+};
+
+export default emojies;
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/data/shortcuts.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/data/shortcuts.ts
@@ -0,0 +1,45 @@
+// Emoticons -> Emoji mapping.
+//
+// (!) Some patterns skipped, to avoid collisions
+// without increase matcher complicity. Than can change in future.
+//
+// Places to look for more emoticons info:
+//
+// - http://en.wikipedia.org/wiki/List_of_emoticons#Western
+// - https://github.com/wooorm/emoticon/blob/master/Support.md
+// - http://factoryjoe.com/projects/emoticons/
+//
+
+import { EmojiShortcuts } from '../normalize_opts';
+
+const shortcuts: EmojiShortcuts = {
+    angry:            ['>:(', '>:-('],
+    blush:            [':")', ':-")'],
+    broken_heart:     ['</3', '<\\3'],
+    // :\ and :-\ not used because of conflict with markdown escaping
+    confused:         [':/', ':-/'], // twemoji shows question
+    cry:              [":'(", ":'-(", ':,(', ':,-('],
+    frowning:         [':(', ':-('],
+    heart:            ['<3'],
+    imp:              [']:(', ']:-('],
+    innocent:         ['o:)', 'O:)', 'o:-)', 'O:-)', '0:)', '0:-)'],
+    joy:              [":')", ":'-)", ':,)', ':,-)', ":'D", ":'-D", ':,D', ':,-D'],
+    kissing:          [':*', ':-*'],
+    laughing:         ['x-)', 'X-)'],
+    neutral_face:     [':|', ':-|'],
+    open_mouth:       [':o', ':-o', ':O', ':-O'],
+    rage:             [':@', ':-@'],
+    smile:            [':D', ':-D'],
+    smiley:           [':)', ':-)'],
+    smiling_imp:      [']:)', ']:-)'],
+    sob:              [":,'(", ":,'-(", ';(', ';-('],
+    stuck_out_tongue: [':P', ':-P'],
+    sunglasses:       ['8-)', 'B-)'],
+    sweat:            [',:(', ',:-('],
+    sweat_smile:      [',:)', ',:-)'],
+    unamused:         [':s', ':-S', ':z', ':-Z', ':$', ':-$'],
+    wink:             [';)', ';-)']
+};
+
+export default shortcuts;
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/full.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/full.ts
@@ -0,0 +1,21 @@
+import MarkdownIt from 'markdown-it';
+import emojies_defs from './data/full';
+import emojies_shortcuts from './data/shortcuts';
+import bare_emoji_plugin from './bare';
+import { EmojiOptions } from './normalize_opts';
+
+/**
+ * Full emoji 插件（包含完整的 emoji 数据）
+ */
+export default function emoji_plugin(md: MarkdownIt, options?: Partial<EmojiOptions>): void {
+    const defaults: EmojiOptions = {
+        defs: emojies_defs,
+        shortcuts: emojies_shortcuts,
+        enabled: []
+    };
+
+    const opts = md.utils.assign({}, defaults, options || {}) as EmojiOptions;
+
+    bare_emoji_plugin(md, opts);
+}
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/light.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/light.ts
@@ -0,0 +1,21 @@
+import MarkdownIt from 'markdown-it';
+import emojies_defs from './data/light';
+import emojies_shortcuts from './data/shortcuts';
+import bare_emoji_plugin from './bare';
+import { EmojiOptions } from './normalize_opts';
+
+/**
+ * Light emoji 插件（包含常用的 emoji 数据）
+ */
+export default function emoji_plugin(md: MarkdownIt, options?: Partial<EmojiOptions>): void {
+    const defaults: EmojiOptions = {
+        defs: emojies_defs,
+        shortcuts: emojies_shortcuts,
+        enabled: []
+    };
+
+    const opts = md.utils.assign({}, defaults, options || {}) as EmojiOptions;
+
+    bare_emoji_plugin(md, opts);
+}
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/normalize_opts.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/normalize_opts.ts
@@ -0,0 +1,95 @@
+/**
+ * Emoji 定义类型
+ */
+export interface EmojiDefs {
+    [key: string]: string;
+}
+
+/**
+ * Emoji 快捷方式类型
+ */
+export interface EmojiShortcuts {
+    [key: string]: string | string[];
+}
+
+/**
+ * 输入选项接口
+ */
+export interface EmojiOptions {
+    defs: EmojiDefs;
+    shortcuts: EmojiShortcuts;
+    enabled: string[];
+}
+
+/**
+ * 标准化后的选项接口
+ */
+export interface NormalizedEmojiOptions {
+    defs: EmojiDefs;
+    shortcuts: { [key: string]: string };
+    scanRE: RegExp;
+    replaceRE: RegExp;
+}
+
+/**
+ * 转义正则表达式特殊字符
+ */
+function quoteRE(str: string): string {
+    return str.replace(/[.?*+^$[\]\\(){}|-]/g, '\\$&');
+}
+
+/**
+ * 将输入选项转换为更可用的格式并编译搜索正则表达式
+ */
+export default function normalize_opts(options: EmojiOptions): NormalizedEmojiOptions {
+    let emojies = options.defs;
+
+    // Filter emojies by whitelist, if needed
+    if (options.enabled.length) {
+        emojies = Object.keys(emojies).reduce((acc: EmojiDefs, key: string) => {
+            if (options.enabled.indexOf(key) >= 0) acc[key] = emojies[key];
+            return acc;
+        }, {});
+    }
+
+    // Flatten shortcuts to simple object: { alias: emoji_name }
+    const shortcuts = Object.keys(options.shortcuts).reduce((acc: { [key: string]: string }, key: string) => {
+        // Skip aliases for filtered emojies, to reduce regexp
+        if (!emojies[key]) return acc;
+
+        if (Array.isArray(options.shortcuts[key])) {
+            (options.shortcuts[key] as string[]).forEach((alias: string) => { acc[alias] = key; });
+            return acc;
+        }
+
+        acc[options.shortcuts[key] as string] = key;
+        return acc;
+    }, {});
+
+    const keys = Object.keys(emojies);
+    let names: string;
+
+    // If no definitions are given, return empty regex to avoid replacements with 'undefined'.
+    if (keys.length === 0) {
+        names = '^$';
+    } else {
+        // Compile regexp
+        names = keys
+            .map((name: string) => { return `:${name}:`; })
+            .concat(Object.keys(shortcuts))
+            .sort()
+            .reverse()
+            .map((name: string) => { return quoteRE(name); })
+            .join('|');
+    }
+    const scanRE = RegExp(names);
+    const replaceRE = RegExp(names, 'g');
+
+    return {
+        defs: emojies,
+        shortcuts,
+        scanRE,
+        replaceRE
+    };
+}
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/render.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/render.ts
@@ -0,0 +1,9 @@
+import { Token } from 'markdown-it';
+
+/**
+ * Emoji 渲染函数
+ */
+export default function emoji_html(tokens: Token[], idx: number): string {
+    return tokens[idx].content;
+}
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/replace.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-emojis/lib/replace.ts
@@ -0,0 +1,97 @@
+import MarkdownIt, { StateCore, Token } from 'markdown-it';
+import { EmojiDefs } from './normalize_opts';
+
+/**
+ * Emoji 和快捷方式替换逻辑
+ * 
+ * 注意：理论上，在内联链中解析 :smile: 并只留下快捷方式会更快。
+ * 但是，谁在乎呢...
+ */
+export default function create_rule(
+    md: MarkdownIt,
+    emojies: EmojiDefs,
+    shortcuts: { [key: string]: string },
+    scanRE: RegExp,
+    replaceRE: RegExp
+) {
+    const arrayReplaceAt = md.utils.arrayReplaceAt;
+    const ucm = md.utils.lib.ucmicro;
+    const has = md.utils.has;
+    const ZPCc = new RegExp([ucm.Z.source, ucm.P.source, ucm.Cc.source].join('|'));
+
+    function splitTextToken(text: string, level: number, TokenConstructor: any): Token[] {
+        let last_pos = 0;
+        const nodes: Token[] = [];
+
+        text.replace(replaceRE, function (match: string, offset: number, src: string): string {
+            let emoji_name: string;
+            // Validate emoji name
+            if (has(shortcuts, match)) {
+                // replace shortcut with full name
+                emoji_name = shortcuts[match];
+
+                // Don't allow letters before any shortcut (as in no ":/" in http://)
+                if (offset > 0 && !ZPCc.test(src[offset - 1])) return '';
+
+                // Don't allow letters after any shortcut
+                if (offset + match.length < src.length && !ZPCc.test(src[offset + match.length])) {
+                    return '';
+                }
+            } else {
+                emoji_name = match.slice(1, -1);
+            }
+
+            // Add new tokens to pending list
+            if (offset > last_pos) {
+                const token = new TokenConstructor('text', '', 0);
+                token.content = text.slice(last_pos, offset);
+                nodes.push(token);
+            }
+
+            const token = new TokenConstructor('emoji', '', 0);
+            token.markup = emoji_name;
+            token.content = emojies[emoji_name];
+            nodes.push(token);
+
+            last_pos = offset + match.length;
+            return '';
+        });
+
+        if (last_pos < text.length) {
+            const token = new TokenConstructor('text', '', 0);
+            token.content = text.slice(last_pos);
+            nodes.push(token);
+        }
+
+        return nodes;
+    }
+
+    return function emoji_replace(state: StateCore): void {
+        let token: Token;
+        const blockTokens = state.tokens;
+        let autolinkLevel = 0;
+
+        for (let j = 0, l = blockTokens.length; j < l; j++) {
+            if (blockTokens[j].type !== 'inline') { continue; }
+            let tokens = blockTokens[j].children!;
+
+            // We scan from the end, to keep position when new tags added.
+            // Use reversed logic in links start/end match
+            for (let i = tokens.length - 1; i >= 0; i--) {
+                token = tokens[i];
+
+                if (token.type === 'link_open' || token.type === 'link_close') {
+                    if (token.info === 'auto') { autolinkLevel -= token.nesting; }
+                }
+
+                if (token.type === 'text' && autolinkLevel === 0 && scanRE.test(token.content)) {
+                    // replace current node
+                    blockTokens[j].children = tokens = arrayReplaceAt(
+                        tokens, i, splitTextToken(token.content, token.level, state.Token)
+                    );
+                }
+            }
+        }
+    };
+}
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-footnote/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-footnote/index.ts
@@ -0,0 +1,390 @@
+import MarkdownIt, {Renderer, StateBlock, StateCore, StateInline, Token} from 'markdown-it';
+
+/**
+ * 脚注元数据接口
+ */
+interface FootnoteMeta {
+    id: number;
+    subId: number;
+    label: string;
+}
+
+/**
+ * 脚注列表项接口
+ */
+interface FootnoteItem {
+    label?: string;
+    content?: string;
+    tokens?: Token[];
+    count: number;
+}
+
+/**
+ * 环境接口
+ */
+interface FootnoteEnv {
+    footnotes?: {
+        refs?: { [key: string]: number };
+        list?: FootnoteItem[];
+    };
+    docId?: string;
+}
+
+/// /////////////////////////////////////////////////////////////////////////////
+// Renderer partials
+
+function render_footnote_anchor_name(tokens: Token[], idx: number, options: any, env: FootnoteEnv): string {
+    const n = Number(tokens[idx].meta.id + 1).toString();
+    let prefix = '';
+
+    if (typeof env.docId === 'string') prefix = `-${env.docId}-`;
+
+    return prefix + n;
+}
+
+function render_footnote_caption(tokens: Token[], idx: number): string {
+    let n = Number(tokens[idx].meta.id + 1).toString();
+
+    if (tokens[idx].meta.subId > 0) n += `:${tokens[idx].meta.subId}`;
+
+    return `[${n}]`;
+}
+
+function render_footnote_ref(tokens: Token[], idx: number, options: any, env: FootnoteEnv, slf: Renderer): string {
+    const id = slf.rules.footnote_anchor_name!(tokens, idx, options, env, slf);
+    const caption = slf.rules.footnote_caption!(tokens, idx, options, env, slf);
+    let refid = id;
+
+    if (tokens[idx].meta.subId > 0) refid += `:${tokens[idx].meta.subId}`;
+
+    return `<sup class="footnote-ref"><a href="#fn${id}" id="fnref${refid}">${caption}</a></sup>`;
+}
+
+function render_footnote_block_open(tokens: Token[], idx: number, options: any): string {
+    return (options.xhtmlOut ? '<hr class="footnotes-sep" />\n' : '<hr class="footnotes-sep">\n') +
+        '<section class="footnotes">\n' +
+        '<ol class="footnotes-list">\n';
+}
+
+function render_footnote_block_close(): string {
+    return '</ol>\n</section>\n';
+}
+
+function render_footnote_open(tokens: Token[], idx: number, options: any, env: FootnoteEnv, slf: Renderer): string {
+    let id = slf.rules.footnote_anchor_name!(tokens, idx, options, env, slf);
+
+    if (tokens[idx].meta.subId > 0) id += `:${tokens[idx].meta.subId}`;
+
+    return `<li id="fn${id}" class="footnote-item">`;
+}
+
+function render_footnote_close(): string {
+    return '</li>\n';
+}
+
+function render_footnote_anchor(tokens: Token[], idx: number, options: any, env: FootnoteEnv, slf: Renderer): string {
+    let id = slf.rules.footnote_anchor_name!(tokens, idx, options, env, slf);
+
+    if (tokens[idx].meta.subId > 0) id += `:${tokens[idx].meta.subId}`;
+
+    /* ↩ with escape code to prevent display as Apple Emoji on iOS */
+    return ` <a href="#fnref${id}" class="footnote-backref">\u21a9\uFE0E</a>`;
+}
+
+/**
+ * markdown-it-footnote 插件
+ * 用于支持脚注语法
+ */
+export default function footnote_plugin(md: MarkdownIt): void {
+    const parseLinkLabel = md.helpers.parseLinkLabel;
+    const isSpace = md.utils.isSpace;
+
+    md.renderer.rules.footnote_ref = render_footnote_ref;
+    md.renderer.rules.footnote_block_open = render_footnote_block_open;
+    md.renderer.rules.footnote_block_close = render_footnote_block_close;
+    md.renderer.rules.footnote_open = render_footnote_open;
+    md.renderer.rules.footnote_close = render_footnote_close;
+    md.renderer.rules.footnote_anchor = render_footnote_anchor;
+
+    // helpers (only used in other rules, no tokens are attached to those)
+    md.renderer.rules.footnote_caption = render_footnote_caption;
+    md.renderer.rules.footnote_anchor_name = render_footnote_anchor_name;
+
+    // Process footnote block definition
+    function footnote_def(state: StateBlock, startLine: number, endLine: number, silent: boolean): boolean {
+        const start = state.bMarks[startLine] + state.tShift[startLine];
+        const max = state.eMarks[startLine];
+
+        // line should be at least 5 chars - "[^x]:"
+        if (start + 4 > max) return false;
+
+        if (state.src.charCodeAt(start) !== 0x5B/* [ */) return false;
+        if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) return false;
+
+        let pos: number;
+
+        for (pos = start + 2; pos < max; pos++) {
+            if (state.src.charCodeAt(pos) === 0x20) return false;
+            if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
+                break;
+            }
+        }
+
+        if (pos === start + 2) return false; // no empty footnote labels
+        if (pos + 1 >= max || state.src.charCodeAt(++pos) !== 0x3A /* : */) return false;
+        if (silent) return true;
+        pos++;
+
+        const env = state.env as FootnoteEnv;
+        if (!env.footnotes) env.footnotes = {};
+        if (!env.footnotes.refs) env.footnotes.refs = {};
+        const label = state.src.slice(start + 2, pos - 2);
+        env.footnotes.refs[`:${label}`] = -1;
+
+        const token_fref_o = new state.Token('footnote_reference_open', '', 1);
+        token_fref_o.meta = { label };
+        token_fref_o.level = state.level++;
+        state.tokens.push(token_fref_o);
+
+        const oldBMark = state.bMarks[startLine];
+        const oldTShift = state.tShift[startLine];
+        const oldSCount = state.sCount[startLine];
+        const oldParentType = state.parentType;
+
+        const posAfterColon = pos;
+        const initial = state.sCount[startLine] + pos - (state.bMarks[startLine] + state.tShift[startLine]);
+        let offset = initial;
+
+        while (pos < max) {
+            const ch = state.src.charCodeAt(pos);
+
+            if (isSpace(ch)) {
+                if (ch === 0x09) {
+                    offset += 4 - offset % 4;
+                } else {
+                    offset++;
+                }
+            } else {
+                break;
+            }
+
+            pos++;
+        }
+
+        state.tShift[startLine] = pos - posAfterColon;
+        state.sCount[startLine] = offset - initial;
+
+        state.bMarks[startLine] = posAfterColon;
+        state.blkIndent += 4;
+        state.parentType = 'footnote' as any;
+
+        if (state.sCount[startLine] < state.blkIndent) {
+            state.sCount[startLine] += state.blkIndent;
+        }
+
+        state.md.block.tokenize(state, startLine, endLine);
+
+        state.parentType = oldParentType;
+        state.blkIndent -= 4;
+        state.tShift[startLine] = oldTShift;
+        state.sCount[startLine] = oldSCount;
+        state.bMarks[startLine] = oldBMark;
+
+        const token_fref_c = new state.Token('footnote_reference_close', '', -1);
+        token_fref_c.level = --state.level;
+        state.tokens.push(token_fref_c);
+
+        return true;
+    }
+
+    // Process inline footnotes (^[...])
+    function footnote_inline(state: StateInline, silent: boolean): boolean {
+        const max = state.posMax;
+        const start = state.pos;
+
+        if (start + 2 >= max) return false;
+        if (state.src.charCodeAt(start) !== 0x5E/* ^ */) return false;
+        if (state.src.charCodeAt(start + 1) !== 0x5B/* [ */) return false;
+
+        const labelStart = start + 2;
+        const labelEnd = parseLinkLabel(state, start + 1);
+
+        // parser failed to find ']', so it's not a valid note
+        if (labelEnd < 0) return false;
+
+        // We found the end of the link, and know for a fact it's a valid link;
+        // so all that's left to do is to call tokenizer.
+        //
+        if (!silent) {
+            const env = state.env as FootnoteEnv;
+            if (!env.footnotes) env.footnotes = {};
+            if (!env.footnotes.list) env.footnotes.list = [];
+            const footnoteId = env.footnotes.list.length;
+            const tokens: Token[] = [];
+
+            state.md.inline.parse(
+                state.src.slice(labelStart, labelEnd),
+                state.md,
+                state.env,
+                tokens
+            );
+
+            const token = state.push('footnote_ref', '', 0);
+            token.meta = { id: footnoteId };
+
+            env.footnotes.list[footnoteId] = {
+                content: state.src.slice(labelStart, labelEnd),
+                tokens,
+                count: 0
+            };
+        }
+
+        state.pos = labelEnd + 1;
+        state.posMax = max;
+        return true;
+    }
+
+    // Process footnote references ([^...])
+    function footnote_ref(state: StateInline, silent: boolean): boolean {
+        const max = state.posMax;
+        const start = state.pos;
+
+        // should be at least 4 chars - "[^x]"
+        if (start + 3 > max) return false;
+
+        const env = state.env as FootnoteEnv;
+        if (!env.footnotes || !env.footnotes.refs) return false;
+        if (state.src.charCodeAt(start) !== 0x5B/* [ */) return false;
+        if (state.src.charCodeAt(start + 1) !== 0x5E/* ^ */) return false;
+
+        let pos: number;
+
+        for (pos = start + 2; pos < max; pos++) {
+            if (state.src.charCodeAt(pos) === 0x20) return false;
+            if (state.src.charCodeAt(pos) === 0x0A) return false;
+            if (state.src.charCodeAt(pos) === 0x5D /* ] */) {
+                break;
+            }
+        }
+
+        if (pos === start + 2) return false; // no empty footnote labels
+        if (pos >= max) return false;
+        pos++;
+
+        const label = state.src.slice(start + 2, pos - 1);
+        if (typeof env.footnotes.refs[`:${label}`] === 'undefined') return false;
+
+        if (!silent) {
+            if (!env.footnotes.list) env.footnotes.list = [];
+
+            let footnoteId: number;
+
+            if (env.footnotes.refs[`:${label}`] < 0) {
+                footnoteId = env.footnotes.list.length;
+                env.footnotes.list[footnoteId] = { label, count: 0 };
+                env.footnotes.refs[`:${label}`] = footnoteId;
+            } else {
+                footnoteId = env.footnotes.refs[`:${label}`];
+            }
+
+            const footnoteSubId = env.footnotes.list[footnoteId].count;
+            env.footnotes.list[footnoteId].count++;
+
+            const token = state.push('footnote_ref', '', 0);
+            token.meta = { id: footnoteId, subId: footnoteSubId, label };
+        }
+
+        state.pos = pos;
+        state.posMax = max;
+        return true;
+    }
+
+    // Glue footnote tokens to end of token stream
+    function footnote_tail(state: StateCore): void {
+        let tokens: Token[] | null = null;
+        let current: Token[];
+        let currentLabel: string;
+        let insideRef = false;
+        const refTokens: { [key: string]: Token[] } = {};
+
+        const env = state.env as FootnoteEnv;
+        if (!env.footnotes) { return; }
+
+        state.tokens = state.tokens.filter(function (tok) {
+            if (tok.type === 'footnote_reference_open') {
+                insideRef = true;
+                current = [];
+                currentLabel = tok.meta.label;
+                return false;
+            }
+            if (tok.type === 'footnote_reference_close') {
+                insideRef = false;
+                // prepend ':' to avoid conflict with Object.prototype members
+                refTokens[':' + currentLabel] = current;
+                return false;
+            }
+            if (insideRef) { current.push(tok); }
+            return !insideRef;
+        });
+
+        if (!env.footnotes.list) { return; }
+        const list = env.footnotes.list;
+
+        state.tokens.push(new state.Token('footnote_block_open', '', 1));
+
+        for (let i = 0, l = list.length; i < l; i++) {
+            const token_fo = new state.Token('footnote_open', '', 1);
+            token_fo.meta = { id: i, label: list[i].label };
+            state.tokens.push(token_fo);
+
+            if (list[i].tokens) {
+                tokens = [];
+
+                const token_po = new state.Token('paragraph_open', 'p', 1);
+                token_po.block = true;
+                tokens.push(token_po);
+
+                const token_i = new state.Token('inline', '', 0);
+                token_i.children = list[i].tokens || null;
+                token_i.content = list[i].content || '';
+                tokens.push(token_i);
+
+                const token_pc = new state.Token('paragraph_close', 'p', -1);
+                token_pc.block = true;
+                tokens.push(token_pc);
+            } else if (list[i].label) {
+                tokens = refTokens[`:${list[i].label}`] || null;
+            }
+
+            if (tokens) state.tokens = state.tokens.concat(tokens);
+
+            let lastParagraph: Token | null;
+
+            if (state.tokens[state.tokens.length - 1].type === 'paragraph_close') {
+                lastParagraph = state.tokens.pop()!;
+            } else {
+                lastParagraph = null;
+            }
+
+            const t = list[i].count > 0 ? list[i].count : 1;
+            for (let j = 0; j < t; j++) {
+                const token_a = new state.Token('footnote_anchor', '', 0);
+                token_a.meta = { id: i, subId: j, label: list[i].label };
+                state.tokens.push(token_a);
+            }
+
+            if (lastParagraph) {
+                state.tokens.push(lastParagraph);
+            }
+
+            state.tokens.push(new state.Token('footnote_close', '', -1));
+        }
+
+        state.tokens.push(new state.Token('footnote_block_close', '', -1));
+    }
+
+    md.block.ruler.before('reference', 'footnote_def', footnote_def, { alt: ['paragraph', 'reference'] });
+    md.inline.ruler.after('image', 'footnote_inline', footnote_inline);
+    md.inline.ruler.after('footnote_inline', 'footnote_ref', footnote_ref);
+    md.core.ruler.after('inline', 'footnote_tail', footnote_tail);
+}
--- a/frontend/src/common/markdown-it/plugins/markdown-it-ins/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-ins/index.ts
@@ -0,0 +1,160 @@
+import MarkdownIt, { StateInline, Token } from 'markdown-it';
+
+/**
+ * 分隔符接口定义
+ */
+interface Delimiter {
+    marker: number;
+    length: number;
+    jump: number;
+    token: number;
+    end: number;
+    open: boolean;
+    close: boolean;
+}
+
+/**
+ * 扫描结果接口定义
+ */
+interface ScanResult {
+    can_open: boolean;
+    can_close: boolean;
+    length: number;
+}
+
+/**
+ * Token 元数据接口定义
+ */
+interface TokenMeta {
+    delimiters?: Delimiter[];
+}
+
+/**
+ * markdown-it-ins 插件
+ * 用于支持插入文本语法 ++text++
+ */
+export default function ins_plugin(md: MarkdownIt): void {
+    // Insert each marker as a separate text token, and add it to delimiter list
+    //
+    function tokenize(state: StateInline, silent: boolean): boolean {
+        const start = state.pos;
+        const marker = state.src.charCodeAt(start);
+
+        if (silent) { return false; }
+
+        if (marker !== 0x2B/* + */) { return false; }
+
+        const scanned = state.scanDelims(state.pos, true) as ScanResult;
+        let len = scanned.length;
+        const ch = String.fromCharCode(marker);
+
+        if (len < 2) { return false; }
+
+        if (len % 2) {
+            const token: Token = state.push('text', '', 0);
+            token.content = ch;
+            len--;
+        }
+
+        for (let i = 0; i < len; i += 2) {
+            const token: Token = state.push('text', '', 0);
+            token.content = ch + ch;
+
+            if (!scanned.can_open && !scanned.can_close) { continue; }
+
+            state.delimiters.push({
+                marker,
+                length: 0,     // disable "rule of 3" length checks meant for emphasis
+                jump: i / 2, // 1 delimiter = 2 characters
+                token: state.tokens.length - 1,
+                end: -1,
+                open: scanned.can_open,
+                close: scanned.can_close
+            } as Delimiter);
+        }
+
+        state.pos += scanned.length;
+
+        return true;
+    }
+
+    // Walk through delimiter list and replace text tokens with tags
+    //
+    function postProcess(state: StateInline, delimiters: Delimiter[]): void {
+        let token: Token;
+        const loneMarkers: number[] = [];
+        const max = delimiters.length;
+
+        for (let i = 0; i < max; i++) {
+            const startDelim = delimiters[i];
+
+            if (startDelim.marker !== 0x2B/* + */) {
+                continue;
+            }
+
+            if (startDelim.end === -1) {
+                continue;
+            }
+
+            const endDelim = delimiters[startDelim.end];
+
+            token = state.tokens[startDelim.token];
+            token.type = 'ins_open';
+            token.tag = 'ins';
+            token.nesting = 1;
+            token.markup = '++';
+            token.content = '';
+
+            token = state.tokens[endDelim.token];
+            token.type = 'ins_close';
+            token.tag = 'ins';
+            token.nesting = -1;
+            token.markup = '++';
+            token.content = '';
+
+            if (state.tokens[endDelim.token - 1].type === 'text' &&
+                state.tokens[endDelim.token - 1].content === '+') {
+                loneMarkers.push(endDelim.token - 1);
+            }
+        }
+
+        // If a marker sequence has an odd number of characters, it's splitted
+        // like this: `~~~~~` -> `~` + `~~` + `~~`, leaving one marker at the
+        // start of the sequence.
+        //
+        // So, we have to move all those markers after subsequent s_close tags.
+        //
+        while (loneMarkers.length) {
+            const i = loneMarkers.pop()!;
+            let j = i + 1;
+
+            while (j < state.tokens.length && state.tokens[j].type === 'ins_close') {
+                j++;
+            }
+
+            j--;
+
+            if (i !== j) {
+                token = state.tokens[j];
+                state.tokens[j] = state.tokens[i];
+                state.tokens[i] = token;
+            }
+        }
+    }
+
+    md.inline.ruler.before('emphasis', 'ins', tokenize);
+    md.inline.ruler2.before('emphasis', 'ins', function (state: StateInline): boolean {
+        const tokens_meta = state.tokens_meta as TokenMeta[];
+        const max = (state.tokens_meta || []).length;
+
+        postProcess(state, state.delimiters as Delimiter[]);
+
+        for (let curr = 0; curr < max; curr++) {
+            if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
+                postProcess(state, tokens_meta[curr].delimiters!);
+            }
+        }
+
+        return true;
+    });
+}
--- a/frontend/src/common/markdown-it/plugins/markdown-it-mark/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-mark/index.ts
@@ -0,0 +1,160 @@
+import MarkdownIt, {StateInline, Token} from 'markdown-it';
+
+/**
+ * 分隔符接口定义
+ */
+interface Delimiter {
+    marker: number;
+    length: number;
+    jump: number;
+    token: number;
+    end: number;
+    open: boolean;
+    close: boolean;
+}
+
+/**
+ * 扫描结果接口定义
+ */
+interface ScanResult {
+    can_open: boolean;
+    can_close: boolean;
+    length: number;
+}
+
+/**
+ * Token 元数据接口定义
+ */
+interface TokenMeta {
+    delimiters?: Delimiter[];
+}
+
+/**
+ * markdown-it-mark 插件
+ * 用于支持 ==标记文本== 语法
+ */
+export default function markPlugin(md: MarkdownIt): void {
+    // Insert each marker as a separate text token, and add it to delimiter list
+    //
+    function tokenize(state: StateInline, silent: boolean): boolean {
+        const start = state.pos;
+        const marker = state.src.charCodeAt(start);
+
+        if (silent) { return false; }
+
+        if (marker !== 0x3D/* = */) { return false; }
+
+        const scanned = state.scanDelims(state.pos, true) as ScanResult;
+        let len = scanned.length;
+        const ch = String.fromCharCode(marker);
+
+        if (len < 2) { return false; }
+
+        if (len % 2) {
+            const token: Token = state.push('text', '', 0);
+            token.content = ch;
+            len--;
+        }
+
+        for (let i = 0; i < len; i += 2) {
+            const token: Token = state.push('text', '', 0);
+            token.content = ch + ch;
+
+            if (!scanned.can_open && !scanned.can_close) { continue; }
+
+            state.delimiters.push({
+                marker,
+                length: 0,     // disable "rule of 3" length checks meant for emphasis
+                jump: i / 2, // 1 delimiter = 2 characters
+                token: state.tokens.length - 1,
+                end: -1,
+                open: scanned.can_open,
+                close: scanned.can_close
+            } as Delimiter);
+        }
+
+        state.pos += scanned.length;
+
+        return true;
+    }
+
+    // Walk through delimiter list and replace text tokens with tags
+    //
+    function postProcess(state: StateInline, delimiters: Delimiter[]): void {
+        const loneMarkers: number[] = [];
+        const max = delimiters.length;
+
+        for (let i = 0; i < max; i++) {
+            const startDelim = delimiters[i];
+
+            if (startDelim.marker !== 0x3D/* = */) {
+                continue;
+            }
+
+            if (startDelim.end === -1) {
+                continue;
+            }
+
+            const endDelim = delimiters[startDelim.end];
+
+            const token_o = state.tokens[startDelim.token];
+            token_o.type = 'mark_open';
+            token_o.tag = 'mark';
+            token_o.nesting = 1;
+            token_o.markup = '==';
+            token_o.content = '';
+
+            const token_c = state.tokens[endDelim.token];
+            token_c.type = 'mark_close';
+            token_c.tag = 'mark';
+            token_c.nesting = -1;
+            token_c.markup = '==';
+            token_c.content = '';
+
+            if (state.tokens[endDelim.token - 1].type === 'text' &&
+                state.tokens[endDelim.token - 1].content === '=') {
+                loneMarkers.push(endDelim.token - 1);
+            }
+        }
+
+        // If a marker sequence has an odd number of characters, it's splitted
+        // like this: `~~~~~` -> `~` + `~~` + `~~`, leaving one marker at the
+        // start of the sequence.
+        //
+        // So, we have to move all those markers after subsequent s_close tags.
+        //
+        while (loneMarkers.length) {
+            const i = loneMarkers.pop()!;
+            let j = i + 1;
+
+            while (j < state.tokens.length && state.tokens[j].type === 'mark_close') {
+                j++;
+            }
+
+            j--;
+
+            if (i !== j) {
+                const token = state.tokens[j];
+                state.tokens[j] = state.tokens[i];
+                state.tokens[i] = token;
+            }
+        }
+    }
+
+    md.inline.ruler.before('emphasis', 'mark', tokenize);
+    md.inline.ruler2.before('emphasis', 'mark', function (state: StateInline): boolean {
+        let curr: number;
+        const tokens_meta = state.tokens_meta as TokenMeta[];
+        const max = (state.tokens_meta || []).length;
+
+        postProcess(state, state.delimiters as Delimiter[]);
+
+        for (curr = 0; curr < max; curr++) {
+            if (tokens_meta[curr] && tokens_meta[curr].delimiters) {
+                postProcess(state, tokens_meta[curr].delimiters!);
+            }
+        }
+
+        return true;
+    });
+}
--- a/frontend/src/common/markdown-it/plugins/markdown-it-mermaid/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-mermaid/index.ts
@@ -0,0 +1,106 @@
+import mermaid from "mermaid";
+import {genUid, hashCode, sleep} from "./utils";
+
+const mermaidCache = new Map<string, HTMLElement>();
+
+// 缓存计数器，用于清除缓存
+const mermaidCacheCount = new Map<string, number>();
+let count = 0;
+
+
+let countTmo = setTimeout(() => undefined, 0);
+const addCount = () => {
+    clearTimeout(countTmo);
+    countTmo = setTimeout(() => {
+        count++;
+        clearCache();
+    }, 500);
+};
+
+const clearCache = () => {
+    for (const key of mermaidCacheCount.keys()) {
+        const value = mermaidCacheCount.get(key)!;
+        if (value + 3 < count) {
+            mermaidCache.delete(key);
+            mermaidCacheCount.delete(key);
+        }
+    }
+};
+
+/**
+ * 渲染 mermaid
+ * @param code mermaid 代码
+ * @param targetId 目标 id
+ * @param count 计数器
+ */
+const renderMermaid = async (code: string, targetId: string, count: number) => {
+    let limit = 100;
+    while (limit-- > 0) {
+        const container = document.getElementById(targetId);
+        if (!container) {
+            await sleep(100);
+            continue;
+        }
+        try {
+            const {svg} = await mermaid.render("mermaid-svg-" + genUid(), code, container);
+            container.innerHTML = svg;
+            mermaidCache.set(targetId, container);
+            mermaidCacheCount.set(targetId, count);
+        } catch (e) {
+        }
+        break;
+    }
+};
+
+export interface MermaidItOptions {
+    theme?: "default" | "dark" | "forest" | "neutral" | "base";
+}
+
+/**
+ * 更新 mermaid 主题
+ */
+export const updateMermaidTheme = (theme: "default" | "dark" | "forest" | "neutral" | "base") => {
+    mermaid.initialize({
+        startOnLoad: false,
+        theme: theme
+    });
+    // 清空缓存，强制重新渲染
+    mermaidCache.clear();
+    mermaidCacheCount.clear();
+
+};
+
+/**
+ * mermaid 插件
+ * @param md markdown-it
+ * @param options 配置选项
+ * @constructor MermaidIt
+ */
+export const MermaidIt = function (md: any, options?: MermaidItOptions): void {
+    const theme = options?.theme || "default";
+    mermaid.initialize({
+        startOnLoad: false,
+        theme: theme
+    });
+    const defaultRenderer = md.renderer.rules.fence.bind(md.renderer.rules);
+    md.renderer.rules.fence = (tokens: any, idx: any, options: any, env: any, self: any) => {
+        addCount();
+        const token = tokens[idx];
+        const info = token.info.trim();
+        if (info === "mermaid") {
+            const containerId = "mermaid-container-" + hashCode(token.content);
+            const container = document.createElement("div");
+            container.id = containerId;
+            if (mermaidCache.has(containerId)) {
+                container.innerHTML = mermaidCache.get(containerId)!.innerHTML;
+                mermaidCacheCount.set(containerId, count);
+            } else {
+                renderMermaid(token.content, containerId, count).then();
+            }
+            return container.outerHTML;
+        }
+        // 使用默认的渲染规则
+        return defaultRenderer(tokens, idx, options, env, self);
+    };
+};
+
--- a/frontend/src/common/markdown-it/plugins/markdown-it-mermaid/utils.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-mermaid/utils.ts
@@ -0,0 +1,49 @@
+import { v4 as uuidv4 } from "uuid";
+
+/**
+ * uuid 生成函数
+ * @param split 分隔符
+ */
+export const genUid = (split = "") => {
+    return uuidv4().split("-").join(split);
+};
+
+/**
+ * 一个简易的sleep函数
+ */
+export const sleep = async (ms: number) => {
+    return new Promise((resolve) => {
+        setTimeout(resolve, ms);
+    });
+};
+
+/**
+ * 计算字符串的hash值
+ * 返回一个数字
+ * @param str
+ */
+export const hashCode = (str: string) => {
+    let hash = 0;
+    if (str.length === 0) return hash;
+    for (let i = 0; i < str.length; i++) {
+        const char = str.charCodeAt(i);
+        hash = (hash << 5) - hash + char;
+        hash = hash & hash; // Convert to 32bit integer
+    }
+    return hash;
+};
+
+/**
+ * 一个简易的阻塞函数
+ */
+export const awaitFor = async (cb: () => boolean, timeout = 0, errText = "超时暂停阻塞") => {
+    const start = Date.now();
+    while (true) {
+        if (cb()) return true;
+        if (timeout && Date.now() - start > timeout) {
+            console.error("阻塞超时: " + errText);
+            return false;
+        }
+        await sleep(100);
+    }
+};
--- a/frontend/src/common/markdown-it/plugins/markdown-it-sub/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-sub/index.ts
@@ -0,0 +1,66 @@
+// Process ~subscript~
+
+import MarkdownIt, { StateInline, Token } from 'markdown-it';
+
+// same as UNESCAPE_MD_RE plus a space
+const UNESCAPE_RE = /\\([ \\!"#$%&'()*+,./:;<=>?@[\]^_`{|}~-])/g;
+
+function subscript(state: StateInline, silent: boolean): boolean {
+    const max = state.posMax;
+    const start = state.pos;
+
+    if (state.src.charCodeAt(start) !== 0x7E/* ~ */) { return false; }
+    if (silent) { return false; } // don't run any pairs in validation mode
+    if (start + 2 >= max) { return false; }
+
+    state.pos = start + 1;
+    let found = false;
+
+    while (state.pos < max) {
+        if (state.src.charCodeAt(state.pos) === 0x7E/* ~ */) {
+            found = true;
+            break;
+        }
+
+        state.md.inline.skipToken(state);
+    }
+
+    if (!found || start + 1 === state.pos) {
+        state.pos = start;
+        return false;
+    }
+
+    const content = state.src.slice(start + 1, state.pos);
+
+    // don't allow unescaped spaces/newlines inside
+    if (content.match(/(^|[^\\])(\\\\)*\s/)) {
+        state.pos = start;
+        return false;
+    }
+
+    // found!
+    state.posMax = state.pos;
+    state.pos = start + 1;
+
+    // Earlier we checked !silent, but this implementation does not need it
+    const token_so: Token = state.push('sub_open', 'sub', 1);
+    token_so.markup = '~';
+
+    const token_t: Token = state.push('text', '', 0);
+    token_t.content = content.replace(UNESCAPE_RE, '$1');
+
+    const token_sc: Token = state.push('sub_close', 'sub', -1);
+    token_sc.markup = '~';
+
+    state.pos = state.posMax + 1;
+    state.posMax = max;
+    return true;
+}
+
+/**
+ * markdown-it-sub 插件
+ * 用于支持下标语法 ~text~
+ */
+export default function sub_plugin(md: MarkdownIt): void {
+    md.inline.ruler.after('emphasis', 'sub', subscript);
+}
--- a/frontend/src/common/markdown-it/plugins/markdown-it-sup/index.ts
+++ b/frontend/src/common/markdown-it/plugins/markdown-it-sup/index.ts
@@ -0,0 +1,66 @@
+// Process ^superscript^
+
+import MarkdownIt, { StateInline, Token } from 'markdown-it';
+
+// same as UNESCAPE_MD_RE plus a space
+const UNESCAPE_RE = /\\([ \\!"#$%&'()*+,./:;<=>?@[\]^_`{|}~-])/g;
+
+function superscript(state: StateInline, silent: boolean): boolean {
+    const max = state.posMax;
+    const start = state.pos;
+
+    if (state.src.charCodeAt(start) !== 0x5E/* ^ */) { return false; }
+    if (silent) { return false; } // don't run any pairs in validation mode
+    if (start + 2 >= max) { return false; }
+
+    state.pos = start + 1;
+    let found = false;
+
+    while (state.pos < max) {
+        if (state.src.charCodeAt(state.pos) === 0x5E/* ^ */) {
+            found = true;
+            break;
+        }
+
+        state.md.inline.skipToken(state);
+    }
+
+    if (!found || start + 1 === state.pos) {
+        state.pos = start;
+        return false;
+    }
+
+    const content = state.src.slice(start + 1, state.pos);
+
+    // don't allow unescaped spaces/newlines inside
+    if (content.match(/(^|[^\\])(\\\\)*\s/)) {
+        state.pos = start;
+        return false;
+    }
+
+    // found!
+    state.posMax = state.pos;
+    state.pos = start + 1;
+
+    // Earlier we checked !silent, but this implementation does not need it
+    const token_so: Token = state.push('sup_open', 'sup', 1);
+    token_so.markup = '^';
+
+    const token_t: Token = state.push('text', '', 0);
+    token_t.content = content.replace(UNESCAPE_RE, '$1');
+
+    const token_sc: Token = state.push('sup_close', 'sup', -1);
+    token_sc.markup = '^';
+
+    state.pos = state.posMax + 1;
+    state.posMax = max;
+    return true;
+}
+
+/**
+ * markdown-it-sup 插件
+ * 用于支持上标语法 ^text^
+ */
+export default function sup_plugin(md: MarkdownIt): void {
+    md.inline.ruler.after('emphasis', 'sup', superscript);
+}
--- a/frontend/src/common/utils/domDiff.test.ts
+++ b/frontend/src/common/utils/domDiff.test.ts
@@ -0,0 +1,329 @@
+/**
+ * DOM Diff 算法单元测试
+ */
+import { describe, test, expect, beforeEach, afterEach } from 'vitest';
+import { morphNode, morphHTML, morphWithKeys } from './domDiff';
+
+describe('DOM Diff Algorithm', () => {
+  let container: HTMLElement;
+
+  beforeEach(() => {
+    container = document.createElement('div');
+    document.body.appendChild(container);
+  });
+
+  afterEach(() => {
+    document.body.removeChild(container);
+  });
+
+  describe('morphNode - 基础功能', () => {
+    test('应该更新文本节点内容', () => {
+      const fromNode = document.createTextNode('Hello');
+      const toNode = document.createTextNode('World');
+      container.appendChild(fromNode);
+
+      morphNode(fromNode, toNode);
+
+      expect(fromNode.nodeValue).toBe('World');
+    });
+
+    test('应该保持相同的文本节点不变', () => {
+      const fromNode = document.createTextNode('Hello');
+      const toNode = document.createTextNode('Hello');
+      container.appendChild(fromNode);
+
+      const originalNode = fromNode;
+      morphNode(fromNode, toNode);
+
+      expect(fromNode).toBe(originalNode);
+      expect(fromNode.nodeValue).toBe('Hello');
+    });
+
+    test('应该替换不同类型的节点', () => {
+      const fromNode = document.createElement('span');
+      fromNode.textContent = 'Hello';
+      const toNode = document.createElement('div');
+      toNode.textContent = 'World';
+      container.appendChild(fromNode);
+
+      morphNode(fromNode, toNode);
+
+      expect(container.firstChild?.nodeName).toBe('DIV');
+      expect(container.firstChild?.textContent).toBe('World');
+    });
+  });
+
+  describe('morphNode - 属性更新', () => {
+    test('应该添加新属性', () => {
+      const fromEl = document.createElement('div');
+      const toEl = document.createElement('div');
+      toEl.setAttribute('class', 'test');
+      toEl.setAttribute('id', 'myid');
+      container.appendChild(fromEl);
+
+      morphNode(fromEl, toEl);
+
+      expect(fromEl.getAttribute('class')).toBe('test');
+      expect(fromEl.getAttribute('id')).toBe('myid');
+    });
+
+    test('应该更新已存在的属性', () => {
+      const fromEl = document.createElement('div');
+      fromEl.setAttribute('class', 'old');
+      const toEl = document.createElement('div');
+      toEl.setAttribute('class', 'new');
+      container.appendChild(fromEl);
+
+      morphNode(fromEl, toEl);
+
+      expect(fromEl.getAttribute('class')).toBe('new');
+    });
+
+    test('应该删除不存在的属性', () => {
+      const fromEl = document.createElement('div');
+      fromEl.setAttribute('class', 'test');
+      fromEl.setAttribute('id', 'myid');
+      const toEl = document.createElement('div');
+      toEl.setAttribute('class', 'test');
+      container.appendChild(fromEl);
+
+      morphNode(fromEl, toEl);
+
+      expect(fromEl.getAttribute('class')).toBe('test');
+      expect(fromEl.hasAttribute('id')).toBe(false);
+    });
+  });
+
+  describe('morphNode - 子节点更新', () => {
+    test('应该添加新子节点', () => {
+      const fromEl = document.createElement('ul');
+      fromEl.innerHTML = '<li>1</li><li>2</li>';
+      const toEl = document.createElement('ul');
+      toEl.innerHTML = '<li>1</li><li>2</li><li>3</li>';
+      container.appendChild(fromEl);
+
+      morphNode(fromEl, toEl);
+
+      expect(fromEl.children.length).toBe(3);
+      expect(fromEl.children[2].textContent).toBe('3');
+    });
+
+    test('应该删除多余的子节点', () => {
+      const fromEl = document.createElement('ul');
+      fromEl.innerHTML = '<li>1</li><li>2</li><li>3</li>';
+      const toEl = document.createElement('ul');
+      toEl.innerHTML = '<li>1</li><li>2</li>';
+      container.appendChild(fromEl);
+
+      morphNode(fromEl, toEl);
+
+      expect(fromEl.children.length).toBe(2);
+      expect(fromEl.textContent).toBe('12');
+    });
+
+    test('应该更新子节点内容', () => {
+      const fromEl = document.createElement('div');
+      fromEl.innerHTML = '<p>Old</p>';
+      const toEl = document.createElement('div');
+      toEl.innerHTML = '<p>New</p>';
+      container.appendChild(fromEl);
+
+      const originalP = fromEl.querySelector('p');
+      morphNode(fromEl, toEl);
+
+      // 应该保持同一个 p 元素，只更新内容
+      expect(fromEl.querySelector('p')).toBe(originalP);
+      expect(fromEl.querySelector('p')?.textContent).toBe('New');
+    });
+  });
+
+  describe('morphHTML - HTML 字符串更新', () => {
+    test('应该从 HTML 字符串更新元素', () => {
+      const element = document.createElement('div');
+      element.innerHTML = '<p>Old</p>';
+      container.appendChild(element);
+
+      morphHTML(element, '<p>New</p>');
+
+      expect(element.innerHTML).toBe('<p>New</p>');
+    });
+
+    test('应该处理复杂的 HTML 结构', () => {
+      const element = document.createElement('div');
+      element.innerHTML = '<h1>Title</h1><p>Paragraph</p>';
+      container.appendChild(element);
+
+      morphHTML(element, '<h1>New Title</h1><p>New Paragraph</p><span>Extra</span>');
+
+      expect(element.children.length).toBe(3);
+      expect(element.querySelector('h1')?.textContent).toBe('New Title');
+      expect(element.querySelector('p')?.textContent).toBe('New Paragraph');
+      expect(element.querySelector('span')?.textContent).toBe('Extra');
+    });
+  });
+
+  describe('morphWithKeys - 基于 key 的智能 diff', () => {
+    test('应该保持相同 key 的节点', () => {
+      const fromEl = document.createElement('ul');
+      fromEl.innerHTML = `
+        <li data-key="a">A</li>
+        <li data-key="b">B</li>
+        <li data-key="c">C</li>
+      `;
+      const toEl = document.createElement('ul');
+      toEl.innerHTML = `
+        <li data-key="a">A Updated</li>
+        <li data-key="b">B</li>
+        <li data-key="c">C</li>
+      `;
+      container.appendChild(fromEl);
+
+      const originalA = fromEl.querySelector('[data-key="a"]');
+      morphWithKeys(fromEl, toEl);
+
+      expect(fromEl.querySelector('[data-key="a"]')).toBe(originalA);
+      expect(originalA?.textContent).toBe('A Updated');
+    });
+
+    test('应该重新排序节点', () => {
+      const fromEl = document.createElement('ul');
+      fromEl.innerHTML = `
+        <li data-key="a">A</li>
+        <li data-key="b">B</li>
+        <li data-key="c">C</li>
+      `;
+      const toEl = document.createElement('ul');
+      toEl.innerHTML = `
+        <li data-key="c">C</li>
+        <li data-key="a">A</li>
+        <li data-key="b">B</li>
+      `;
+      container.appendChild(fromEl);
+
+      morphWithKeys(fromEl, toEl);
+
+      const keys = Array.from(fromEl.children).map(child => child.getAttribute('data-key'));
+      expect(keys).toEqual(['c', 'a', 'b']);
+    });
+
+    test('应该添加新的 key 节点', () => {
+      const fromEl = document.createElement('ul');
+      fromEl.innerHTML = `
+        <li data-key="a">A</li>
+        <li data-key="b">B</li>
+      `;
+      const toEl = document.createElement('ul');
+      toEl.innerHTML = `
+        <li data-key="a">A</li>
+        <li data-key="b">B</li>
+        <li data-key="c">C</li>
+      `;
+      container.appendChild(fromEl);
+
+      morphWithKeys(fromEl, toEl);
+
+      expect(fromEl.children.length).toBe(3);
+      expect(fromEl.querySelector('[data-key="c"]')?.textContent).toBe('C');
+    });
+
+    test('应该删除不存在的 key 节点', () => {
+      const fromEl = document.createElement('ul');
+      fromEl.innerHTML = `
+        <li data-key="a">A</li>
+        <li data-key="b">B</li>
+        <li data-key="c">C</li>
+      `;
+      const toEl = document.createElement('ul');
+      toEl.innerHTML = `
+        <li data-key="a">A</li>
+        <li data-key="c">C</li>
+      `;
+      container.appendChild(fromEl);
+
+      morphWithKeys(fromEl, toEl);
+
+      expect(fromEl.children.length).toBe(2);
+      expect(fromEl.querySelector('[data-key="b"]')).toBeNull();
+    });
+  });
+
+  describe('性能测试', () => {
+    test('应该高效处理大量节点', () => {
+      const fromEl = document.createElement('ul');
+      for (let i = 0; i < 1000; i++) {
+        const li = document.createElement('li');
+        li.textContent = `Item ${i}`;
+        fromEl.appendChild(li);
+      }
+
+      const toEl = document.createElement('ul');
+      for (let i = 0; i < 1000; i++) {
+        const li = document.createElement('li');
+        li.textContent = `Updated Item ${i}`;
+        toEl.appendChild(li);
+      }
+
+      container.appendChild(fromEl);
+
+      const startTime = performance.now();
+      morphNode(fromEl, toEl);
+      const endTime = performance.now();
+
+      expect(endTime - startTime).toBeLessThan(100); // 应该在 100ms 内完成
+      expect(fromEl.children.length).toBe(1000);
+      expect(fromEl.children[0].textContent).toBe('Updated Item 0');
+    });
+  });
+
+  describe('边界情况', () => {
+    test('应该处理空节点', () => {
+      const fromEl = document.createElement('div');
+      const toEl = document.createElement('div');
+      container.appendChild(fromEl);
+
+      expect(() => morphNode(fromEl, toEl)).not.toThrow();
+    });
+
+    test('应该处理只有文本的节点', () => {
+      const fromEl = document.createElement('div');
+      fromEl.textContent = 'Hello';
+      const toEl = document.createElement('div');
+      toEl.textContent = 'World';
+      container.appendChild(fromEl);
+
+      morphNode(fromEl, toEl);
+
+      expect(fromEl.textContent).toBe('World');
+    });
+
+    test('应该处理嵌套的复杂结构', () => {
+      const fromEl = document.createElement('div');
+      fromEl.innerHTML = `
+        <div class="outer">
+          <div class="inner">
+            <span>Text</span>
+          </div>
+        </div>
+      `;
+
+      const toEl = document.createElement('div');
+      toEl.innerHTML = `
+        <div class="outer modified">
+          <div class="inner">
+            <span>Updated Text</span>
+            <strong>New</strong>
+          </div>
+        </div>
+      `;
+
+      container.appendChild(fromEl);
+
+      morphNode(fromEl, toEl);
+
+      expect(fromEl.querySelector('.outer')?.classList.contains('modified')).toBe(true);
+      expect(fromEl.querySelector('span')?.textContent).toBe('Updated Text');
+      expect(fromEl.querySelector('strong')?.textContent).toBe('New');
+    });
+  });
+});
+
--- a/frontend/src/common/utils/domDiff.ts
+++ b/frontend/src/common/utils/domDiff.ts
@@ -0,0 +1,180 @@
+/**
+ * 轻量级 DOM Diff 算法实现
+ * 基于 morphdom 思路，只更新变化的节点，保持未变化的节点不动
+ */
+
+/**
+ * 比较并更新两个 DOM 节点
+ * @param fromNode 原节点
+ * @param toNode 目标节点
+ */
+export function morphNode(fromNode: Node, toNode: Node): void {
+  // 节点类型不同，直接替换
+  if (fromNode.nodeType !== toNode.nodeType || fromNode.nodeName !== toNode.nodeName) {
+    fromNode.parentNode?.replaceChild(toNode.cloneNode(true), fromNode);
+    return;
+  }
+
+  // 文本节点：比较内容
+  if (fromNode.nodeType === Node.TEXT_NODE) {
+    if (fromNode.nodeValue !== toNode.nodeValue) {
+      fromNode.nodeValue = toNode.nodeValue;
+    }
+    return;
+  }
+
+  // 元素节点：更新属性和子节点
+  if (fromNode.nodeType === Node.ELEMENT_NODE) {
+    const fromEl = fromNode as Element;
+    const toEl = toNode as Element;
+
+    // 更新属性
+    morphAttributes(fromEl, toEl);
+
+    // 更新子节点
+    morphChildren(fromEl, toEl);
+  }
+}
+
+/**
+ * 更新元素属性
+ */
+function morphAttributes(fromEl: Element, toEl: Element): void {
+  // 移除旧属性
+  const fromAttrs = fromEl.attributes;
+  for (let i = fromAttrs.length - 1; i >= 0; i--) {
+    const attr = fromAttrs[i];
+    if (!toEl.hasAttribute(attr.name)) {
+      fromEl.removeAttribute(attr.name);
+    }
+  }
+
+  // 添加/更新新属性
+  const toAttrs = toEl.attributes;
+  for (let i = 0; i < toAttrs.length; i++) {
+    const attr = toAttrs[i];
+    const fromValue = fromEl.getAttribute(attr.name);
+    if (fromValue !== attr.value) {
+      fromEl.setAttribute(attr.name, attr.value);
+    }
+  }
+}
+
+/**
+ * 更新子节点（核心 diff 算法）
+ */
+function morphChildren(fromEl: Element, toEl: Element): void {
+  const fromChildren = Array.from(fromEl.childNodes);
+  const toChildren = Array.from(toEl.childNodes);
+
+  const fromLen = fromChildren.length;
+  const toLen = toChildren.length;
+  const minLen = Math.min(fromLen, toLen);
+
+  // 1. 更新公共部分
+  for (let i = 0; i < minLen; i++) {
+    morphNode(fromChildren[i], toChildren[i]);
+  }
+
+  // 2. 移除多余的旧节点
+  if (fromLen > toLen) {
+    for (let i = fromLen - 1; i >= toLen; i--) {
+      fromEl.removeChild(fromChildren[i]);
+    }
+  }
+
+  // 3. 添加新节点
+  if (toLen > fromLen) {
+    for (let i = fromLen; i < toLen; i++) {
+      fromEl.appendChild(toChildren[i].cloneNode(true));
+    }
+  }
+}
+
+/**
+ * 优化版：使用 key 进行更智能的 diff（可选）
+ * 适用于有 data-key 属性的元素
+ */
+export function morphWithKeys(fromEl: Element, toEl: Element): void {
+  const toChildren = Array.from(toEl.children) as Element[];
+
+  // 构建 from 的 key 映射
+  const fromKeyMap = new Map<string, Element>();
+  Array.from(fromEl.children).forEach((child) => {
+    const key = child.getAttribute('data-key');
+    if (key) {
+      fromKeyMap.set(key, child);
+    }
+  });
+
+  const processedKeys = new Set<string>();
+
+  // 按照 toChildren 的顺序处理
+  toChildren.forEach((toChild, toIndex) => {
+    const key = toChild.getAttribute('data-key');
+    if (!key) return;
+
+    processedKeys.add(key);
+    const fromChild = fromKeyMap.get(key);
+
+    if (fromChild) {
+      // 找到对应节点，更新内容
+      morphNode(fromChild, toChild);
+
+      // 确保节点在正确的位置
+      const currentNode = fromEl.children[toIndex];
+      if (currentNode !== fromChild) {
+        // 将 fromChild 移动到正确位置
+        fromEl.insertBefore(fromChild, currentNode);
+      }
+    } else {
+      // 新节点，插入到正确位置
+      const currentNode = fromEl.children[toIndex];
+      fromEl.insertBefore(toChild.cloneNode(true), currentNode || null);
+    }
+  });
+
+  // 删除不再存在的节点（从后往前删除，避免索引问题）
+  const childrenToRemove: Element[] = [];
+  fromKeyMap.forEach((child, key) => {
+    if (!processedKeys.has(key)) {
+      childrenToRemove.push(child);
+    }
+  });
+  childrenToRemove.forEach(child => {
+    fromEl.removeChild(child);
+  });
+}
+
+/**
+ * 高级 API：直接从 HTML 字符串更新元素
+ */
+export function morphHTML(element: Element, htmlString: string): void {
+  const tempContainer = document.createElement('div');
+  tempContainer.innerHTML = htmlString;
+
+  // 更新元素的子节点列表
+  morphChildren(element, tempContainer);
+}
+
+/**
+ * 批量更新（使用 DocumentFragment）
+ */
+export function batchMorph(element: Element, htmlString: string): void {
+  const tempContainer = document.createElement('div');
+  tempContainer.innerHTML = htmlString;
+
+  const fragment = document.createDocumentFragment();
+  Array.from(tempContainer.childNodes).forEach(node => {
+    fragment.appendChild(node);
+  });
+
+  // 清空原内容
+  while (element.firstChild) {
+    element.removeChild(element.firstChild);
+  }
+
+  // 批量插入
+  element.appendChild(fragment);
+}
+
--- a/frontend/src/components/loading/LoadingScreen.vue
+++ b/frontend/src/components/loading/LoadingScreen.vue
@@ -80,7 +80,7 @@ function animationLoop() {
      // 等待一段时间后重置动画
      resetTimeoutId = window.setTimeout(() => {
        reset();
-      }, 750);
+      }, 500);
    }
  }
  
@@ -136,7 +136,8 @@ onBeforeUnmount(() => {
  left: 0;
  right: 0;
  bottom: 0;
-  background: var(--voidraft-bg-gradient, radial-gradient(#222922, #000500));
+  //background: var(--voidraft-bg-gradient, rgba(0, 5, 0, 0.15));
+  //backdrop-filter: blur(2px);
  z-index: 1000;
  display: flex;
  align-items: center;
--- a/frontend/src/components/toolbar/Toolbar.vue
+++ b/frontend/src/components/toolbar/Toolbar.vue
@@ -13,16 +13,20 @@ import {getActiveNoteBlock} from '@/views/editor/extensions/codeblock/state';
 import {getLanguage} from '@/views/editor/extensions/codeblock/lang-parser/languages';
 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';

 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 {t} = useI18n();
 const router = useRouter();

 const canFormatCurrentBlock = ref(false);
+const canPreviewMarkdown = ref(false);
 const isLoaded = shallowRef(false);

 const { documentStats } = toRefs(editorStore);
@@ -33,6 +37,11 @@ const isCurrentWindowOnTop = computed(() => {
  return config.value.general.alwaysOnTop || systemStore.isWindowOnTop;
 });

+// 当前文档的预览是否打开
+const isCurrentBlockPreviewing = computed(() => {
+  return panelStore.markdownPreview.isOpen && !panelStore.markdownPreview.isClosing;
+});
+
 // 切换窗口置顶状态
 const toggleAlwaysOnTop = async () => {
  const currentlyOnTop = isCurrentWindowOnTop.value;
@@ -60,11 +69,22 @@ const formatCurrentBlock = () => {
  formatBlockContent(editorStore.editorView);
 };

-// 格式化按钮状态更新 - 使用更高效的检查逻辑
-const updateFormatButtonState = () => {
-  const view = editorStore.editorView;
+// 切换 Markdown 预览
+const { debouncedFn: debouncedTogglePreview } = createDebounce(() => {
+  if (!canPreviewMarkdown.value || !editorStore.editorView) return;
+  toggleMarkdownPreview(editorStore.editorView as any);
+}, { delay: 200 });
+
+const togglePreview = () => {
+  debouncedTogglePreview();
+};
+
+// 统一更新按钮状态
+const updateButtonStates = () => {
+  const view: any = editorStore.editorView;
  if (!view) {
    canFormatCurrentBlock.value = false;
+    canPreviewMarkdown.value = false;
    return;
  }

@@ -75,20 +95,25 @@ const updateFormatButtonState = () => {
    // 提前返回，减少不必要的计算
    if (!activeBlock) {
      canFormatCurrentBlock.value = false;
+      canPreviewMarkdown.value = false;
      return;
    }

-    const language = getLanguage(activeBlock.language.name as any);
+    const languageName = activeBlock.language.name;
+    const language = getLanguage(languageName as any);
+
    canFormatCurrentBlock.value = Boolean(language?.prettier);
+    canPreviewMarkdown.value = languageName.toLowerCase() === 'md';
  } catch (error) {
-    console.warn('Error checking format capability:', error);
+    console.warn('Error checking block capabilities:', error);
    canFormatCurrentBlock.value = false;
+    canPreviewMarkdown.value = false;
  }
 };

 // 创建带1s防抖的更新函数
-const { debouncedFn: debouncedUpdateFormat, cancel: cancelDebounce } = createDebounce(
-  updateFormatButtonState,
+const { debouncedFn: debouncedUpdateButtonStates, cancel: cancelDebounce } = createDebounce(
+  updateButtonStates,
  { delay: 1000 }
 );

@@ -102,9 +127,9 @@ const setupEditorListeners = (view: any) => {

  // 使用对象缓存事件处理器，避免重复创建
  const eventHandlers = {
-    click: updateFormatButtonState,
-    keyup: debouncedUpdateFormat,
-    focus: updateFormatButtonState
+    click: updateButtonStates,
+    keyup: debouncedUpdateButtonStates,
+    focus: updateButtonStates
  } as const;

  const events = Object.entries(eventHandlers).map(([type, handler]) => ({
@@ -131,11 +156,12 @@ watch(

        if (newView) {
          // 初始更新状态
-          updateFormatButtonState();
+          updateButtonStates();
          // 设置新监听器
          cleanupListeners = setupEditorListeners(newView);
        } else {
          canFormatCurrentBlock.value = false;
+          canPreviewMarkdown.value = false;
        }
      });
    },
@@ -145,8 +171,8 @@ watch(
 // 组件生命周期
 onMounted(async () => {
  isLoaded.value = true;
-  // 首次更新格式化状态
-  updateFormatButtonState();
+  // 首次更新按钮状态
+  updateButtonStates();
  await systemStore.setWindowOnTop(isCurrentWindowOnTop.value);
 });

@@ -229,6 +255,21 @@ const statsData = computed(() => ({
      <!-- 块语言选择器 -->
      <BlockLanguageSelector/>

+      <!-- Markdown预览按钮 -->
+      <div
+          v-if="canPreviewMarkdown"
+          class="preview-button"
+          :class="{ 'active': isCurrentBlockPreviewing }"
+          :title="isCurrentBlockPreviewing ? t('toolbar.closePreview') : t('toolbar.previewMarkdown')"
+          @click="togglePreview"
+      >
+        <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none"
+             stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+          <path d="M2 12s3-7 10-7 10 7 10 7-3 7-10 7-10-7-10-7Z"/>
+          <circle cx="12" cy="12" r="3"/>
+        </svg>
+      </div>
+
      <!-- 格式化按钮 - 支持点击操作 -->
      <div
          v-if="canFormatCurrentBlock"
@@ -512,6 +553,42 @@ const statsData = computed(() => ({
      }
    }

+    .preview-button {
+      cursor: pointer;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      width: 20px;
+      height: 20px;
+      padding: 2px;
+      border-radius: 3px;
+      transition: all 0.2s ease;
+
+      &:hover {
+        background-color: var(--border-color);
+        opacity: 0.8;
+      }
+
+      &.active {
+        background-color: rgba(100, 149, 237, 0.2);
+
+        svg {
+          stroke: #6495ed;
+        }
+      }
+
+      svg {
+        width: 14px;
+        height: 14px;
+        stroke: var(--text-muted);
+        transition: stroke 0.2s ease;
+      }
+
+      &:hover svg {
+        stroke: var(--text-secondary);
+      }
+    }
+
    .settings-btn {
      background: none;
      border: none;
--- a/frontend/src/i18n/locales/en-US.ts
+++ b/frontend/src/i18n/locales/en-US.ts
@@ -19,6 +19,8 @@ export default {
    searchLanguage: 'Search language...',
    noLanguageFound: 'No language found',
    formatHint: 'Click Format Block (Ctrl+Shift+F)',
+    previewMarkdown: 'Preview Markdown',
+    closePreview: 'Close Preview',
    // Document selector
    selectDocument: 'Select Document',
    searchOrCreateDocument: 'Search or enter new document name...',
--- a/frontend/src/i18n/locales/zh-CN.ts
+++ b/frontend/src/i18n/locales/zh-CN.ts
@@ -19,6 +19,8 @@ export default {
    searchLanguage: '搜索语言...',
    noLanguageFound: '未找到匹配的语言',
    formatHint: '点击格式化区块（Ctrl+Shift+F）',
+    previewMarkdown: '预览 Markdown',
+    closePreview: '关闭预览',
    // 文档选择器
    selectDocument: '选择文档',
    searchOrCreateDocument: '搜索或输入新文档名...',
--- a/frontend/src/stores/backupStore.ts
+++ b/frontend/src/stores/backupStore.ts
@@ -1,175 +1,49 @@
 import { defineStore } from 'pinia';
-import { computed, readonly, ref, shallowRef, watchEffect, onScopeDispose } from 'vue';
-import type { GitBackupConfig } from '@/../bindings/voidraft/internal/models';
+import { ref, onScopeDispose } from 'vue';
 import { BackupService } from '@/../bindings/voidraft/internal/services';
 import { useConfigStore } from '@/stores/configStore';
 import { createTimerManager } from '@/common/utils/timerUtils';

-// 备份状态枚举
-export enum BackupStatus {
-  IDLE = 'idle',
-  PUSHING = 'pushing',
-  SUCCESS = 'success',
-  ERROR = 'error'
-}
-
-// 备份操作结果类型
-export interface BackupResult {
-  status: BackupStatus;
-  message?: string;
-  timestamp?: number;
-}
-
-// 类型守卫函数
-const isBackupError = (error: unknown): error is Error => {
-  return error instanceof Error;
-};
-
-// 工具类型：提取错误消息
-type ErrorMessage<T> = T extends Error ? string : string;
-
-
 export const useBackupStore = defineStore('backup', () => {
-  // === 核心状态 ===
-  const config = shallowRef<GitBackupConfig | null>(null);
+  const isPushing = ref(false);
+  const message = ref<string | null>(null);
+  const isError = ref(false);
  
-  // 统一的备份结果状态
-  const backupResult = ref<BackupResult>({
-    status: BackupStatus.IDLE
-  });
-
-  // === 定时器管理 ===
-  const statusTimer = createTimerManager();
-  
-  // 组件卸载时清理定时器
-  onScopeDispose(() => {
-    statusTimer.clear();
-  });
-
-  // === 外部依赖 ===
+  const timer = createTimerManager();
  const configStore = useConfigStore();

-  // === 计算属性 ===
-  const isEnabled = computed(() => configStore.config.backup.enabled);
-  const isConfigured = computed(() => Boolean(configStore.config.backup.repo_url?.trim()));
+  onScopeDispose(() => timer.clear());

-  // 派生状态计算属性
-  const isPushing = computed(() => backupResult.value.status === BackupStatus.PUSHING);
-  const isSuccess = computed(() => backupResult.value.status === BackupStatus.SUCCESS);
-  const isError = computed(() => backupResult.value.status === BackupStatus.ERROR);
-  const errorMessage = computed(() => 
-    backupResult.value.status === BackupStatus.ERROR ? backupResult.value.message : null
-  );
+  const pushToRemote = async () => {
+    const isConfigured = Boolean(configStore.config.backup.repo_url?.trim());
    
-  // === 状态管理方法 ===
-  
-  /**
-   * 设置备份状态
-   * @param status 备份状态
-   * @param message 可选消息
-   * @param autoHide 是否自动隐藏（毫秒）
-   */
-  const setBackupStatus = <T extends BackupStatus>(
-    status: T,
-    message?: T extends BackupStatus.ERROR ? string : string,
-    autoHide?: number
-  ): void => {
-    statusTimer.clear();
-    
-    backupResult.value = {
-      status,
-      message,
-      timestamp: Date.now()
-    };
-
-    // 自动隐藏逻辑
-    if (autoHide && (status === BackupStatus.SUCCESS || status === BackupStatus.ERROR)) {
-      statusTimer.set(() => {
-        if (backupResult.value.status === status) {
-          backupResult.value = { status: BackupStatus.IDLE };
-        }
-      }, autoHide);
-    }
-  };
-
-  /**
-   * 清除当前状态
-   */
-  const clearStatus = (): void => {
-    statusTimer.clear();
-    backupResult.value = { status: BackupStatus.IDLE };
-  };
-
-  /**
-   * 处理错误的通用方法
-   */
-  const handleError = (error: unknown): void => {
-    const message: ErrorMessage<typeof error> = isBackupError(error) 
-      ? error.message 
-      : 'Backup operation failed';
-    
-    setBackupStatus(BackupStatus.ERROR, message, 5000);
-  };
-
-  // === 业务逻辑方法 ===
-  
-  /**
-   * 推送到远程仓库
-   * 使用现代 async/await 和错误处理
-   */
-  const pushToRemote = async (): Promise<void> => {
-    // 前置条件检查
-    if (isPushing.value || !isConfigured.value) {
+    if (isPushing.value || !isConfigured) {
      return;
    }

    try {
-      setBackupStatus(BackupStatus.PUSHING);
+      isPushing.value = true;
+      message.value = null;
+      timer.clear();
      
      await BackupService.PushToRemote();
      
-      setBackupStatus(BackupStatus.SUCCESS, 'Backup completed successfully', 3000);
+      isError.value = false;
+      message.value = 'push successful';
+      timer.set(() => { message.value = null; }, 3000);
    } catch (error) {
-      handleError(error);
+      isError.value = true;
+      message.value = error instanceof Error ? error.message : 'backup operation failed';
+      timer.set(() => { message.value = null; }, 5000);
+    } finally {
+      isPushing.value = false;
    }
  };

-  /**
-   * 重试备份操作
-   */
-  const retryBackup = async (): Promise<void> => {
-    if (isError.value) {
-      await pushToRemote();
-    }
-  };
-
-  // === 响应式副作用 ===
-  
-  // 监听配置变化，自动清除错误状态
-  watchEffect(() => {
-    if (isEnabled.value && isConfigured.value && isError.value) {
-      // 配置修复后清除错误状态
-      clearStatus();
-    }
-  });
-
-  // === 返回的 API ===
  return {
-    // 只读状态
-    config: readonly(config),
-    backupResult: readonly(backupResult),
-
-    // 计算属性
-    isEnabled,
-    isConfigured,
    isPushing,
-    isSuccess,
+    message,
    isError,
-    errorMessage,
-
-    // 方法
-    pushToRemote,
-    retryBackup,
-    clearStatus
-  } as const;
+    pushToRemote
+  };
 });
--- a/frontend/src/stores/documentStore.ts
+++ b/frontend/src/stores/documentStore.ts
@@ -4,6 +4,7 @@ import {DocumentService} from '@/../bindings/voidraft/internal/services';
 import {OpenDocumentWindow} from '@/../bindings/voidraft/internal/services/windowservice';
 import {Document} from '@/../bindings/voidraft/internal/models/models';
 import {useTabStore} from "@/stores/tabStore";
+import type {EditorViewState} from '@/stores/editorStore';

 export const useDocumentStore = defineStore('document', () => {
    const DEFAULT_DOCUMENT_ID = ref<number>(1); // 默认草稿文档ID
@@ -13,6 +14,10 @@ export const useDocumentStore = defineStore('document', () => {
    const currentDocumentId = ref<number | null>(null);
    const currentDocument = ref<Document | null>(null);

+    // === 编辑器状态持久化 ===
+    // 修复：使用统一的 EditorViewState 类型定义
+    const documentStates = ref<Record<number, EditorViewState>>({});
+
    // === UI状态 ===
    const showDocumentSelector = ref(false);
    const selectorError = ref<{ docId: number; message: string } | null>(null);
@@ -218,6 +223,7 @@ export const useDocumentStore = defineStore('document', () => {
        documentList,
        currentDocumentId,
        currentDocument,
+        documentStates,
        showDocumentSelector,
        selectorError,
        isLoading,
@@ -240,6 +246,6 @@ export const useDocumentStore = defineStore('document', () => {
    persist: {
        key: 'voidraft-document',
        storage: localStorage,
-        pick: ['currentDocumentId', 'documents']
+        pick: ['currentDocumentId', 'documents', 'documentStates']
    }
 });
--- a/frontend/src/stores/editorStore.ts
+++ b/frontend/src/stores/editorStore.ts
@@ -4,8 +4,8 @@ import {EditorView} from '@codemirror/view';
 import {EditorState, Extension} from '@codemirror/state';
 import {useConfigStore} from './configStore';
 import {useDocumentStore} from './documentStore';
-import {useThemeStore} from './themeStore';
-import {ExtensionID, SystemThemeType} from '@/../bindings/voidraft/internal/models/models';
+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";
 import {createBasicSetup} from '@/views/editor/basic/basicSetup';
@@ -15,15 +15,22 @@ import {createFontExtensionFromBackend, updateFontConfig} from '@/views/editor/b
 import {createStatsUpdateExtension} from '@/views/editor/basic/statsExtension';
 import {createContentChangePlugin} from '@/views/editor/basic/contentChangeExtension';
 import {createDynamicKeymapExtension, updateKeymapExtension} from '@/views/editor/keymap';
-import {createDynamicExtensions, getExtensionManager, setExtensionManagerView, removeExtensionManagerView} from '@/views/editor/manager';
+import {
+    createDynamicExtensions,
+    getExtensionManager,
+    removeExtensionManagerView,
+    setExtensionManagerView
+} from '@/views/editor/manager';
 import {useExtensionStore} from './extensionStore';
-import createCodeBlockExtension from "@/views/editor/extensions/codeblock";
+import createCodeBlockExtension, {blockState} from "@/views/editor/extensions/codeblock";
 import {LruCache} from '@/common/utils/lruCache';
 import {AsyncManager} from '@/common/utils/asyncManager';
 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} from "@/views/editor/extensions/markdownPreview";
+import {createDebounce} from '@/common/utils/debounce';

 export interface DocumentStats {
    lines: number;
@@ -31,6 +38,11 @@ export interface DocumentStats {
    selectedCharacters: number;
 }

+// 修复：只保存光标位置，恢复时自动滚动到光标处（更简单可靠）
+export interface EditorViewState {
+    cursorPos: number;
+}
+
 interface EditorInstance {
    view: EditorView;
    documentId: number;
@@ -43,13 +55,14 @@ interface EditorInstance {
        lastContentHash: string;
        lastParsed: Date;
    } | null;
+    // 修复：使用统一的类型，可选但不是 undefined | {...}
+    editorState?: EditorViewState;
 }

 export const useEditorStore = defineStore('editor', () => {
    // === 依赖store ===
    const configStore = useConfigStore();
    const documentStore = useDocumentStore();
-    const themeStore = useThemeStore();
    const extensionStore = useExtensionStore();

    // === 核心状态 ===
@@ -65,6 +78,8 @@ export const useEditorStore = defineStore('editor', () => {
    
    // 编辑器加载状态
    const isLoading = ref(false);
+    // 修复：使用操作计数器精确管理加载状态
+    const loadingOperations = ref(0);

    // 异步操作管理器
    const operationManager = new AsyncManager<number>();
@@ -72,8 +87,92 @@ export const useEditorStore = defineStore('editor', () => {
    // 自动保存设置 - 从配置动态获取
    const getAutoSaveDelay = () => configStore.config.editing.autoSaveDelay;

+    // 创建防抖的语法树缓存清理函数
+    const debouncedClearSyntaxCache = createDebounce((instance) => {
+        if (instance) {
+            instance.syntaxTreeCache = null;
+        }
+    }, { delay: 500 }); // 500ms 内的多次输入只清理一次
+
    // === 私有方法 ===

+    /**
+     * 检查位置是否在代码块分隔符区域内
+     */
+    const isPositionInDelimiter = (view: EditorView, pos: number): boolean => {
+        try {
+            const blocks = view.state.field(blockState, false);
+            if (!blocks) return false;
+            
+            for (const block of blocks) {
+                if (pos >= block.delimiter.from && pos < block.delimiter.to) {
+                    return true;
+                }
+            }
+            return false;
+        } catch {
+            return false;
+        }
+    };
+
+    /**
+     * 调整光标位置到有效的内容区域
+     * 如果位置在分隔符内，移动到该块的内容开始位置
+     */
+    const adjustCursorPosition = (view: EditorView, pos: number): number => {
+        try {
+            const blocks = view.state.field(blockState, false);
+            if (!blocks || blocks.length === 0) return pos;
+
+            // 如果位置在分隔符内，移动到该块的内容开始位置
+            for (const block of blocks) {
+                if (pos >= block.delimiter.from && pos < block.delimiter.to) {
+                    return block.content.from;
+                }
+            }
+            
+            return pos;
+        } catch {
+            return pos;
+        }
+    };
+
+    /**
+     * 恢复编辑器的光标位置（自动滚动到光标处）
+     */
+    const restoreEditorState = (instance: EditorInstance, documentId: number): void => {
+        const savedState = instance.editorState;
+        
+        if (savedState) {
+            // 有保存的状态，恢复光标位置
+            let pos = Math.min(savedState.cursorPos, instance.view.state.doc.length);
+            
+            // 确保位置不在分隔符上
+            if (isPositionInDelimiter(instance.view, pos)) {
+                pos = adjustCursorPosition(instance.view, pos);
+            }
+            
+            // 修复：设置光标位置并居中滚动（更好的用户体验）
+            instance.view.dispatch({
+                selection: {anchor: pos, head: pos},
+                effects: EditorView.scrollIntoView(pos, {
+                    y: "center",  // 垂直居中显示
+                    yMargin: 100   // 上下留一些边距
+                })
+            });
+        } else {
+            // 首次打开或没有记录，光标在文档末尾
+            const docLength = instance.view.state.doc.length;
+            instance.view.dispatch({
+                selection: {anchor: docLength, head: docLength},
+                effects: EditorView.scrollIntoView(docLength, {
+                    y: "center",
+                    yMargin: 100
+                })
+            });
+        }
+    };
+
    // 缓存化的语法树确保方法
    const ensureSyntaxTreeCached = (view: EditorView, documentId: number): void => {
        const instance = editorCache.get(documentId);
@@ -157,6 +256,9 @@ export const useEditorStore = defineStore('editor', () => {

        const httpExtension = createHttpClientExtension();

+        // Markdown预览扩展
+        const previewExtension = markdownPreviewExtension();
+
        // 再次检查操作有效性
        if (!operationManager.isOperationValid(operationId, documentId)) {
            throw new Error('Operation cancelled');
@@ -189,7 +291,8 @@ export const useEditorStore = defineStore('editor', () => {
            contentChangeExtension,
            codeBlockExtension,
            ...dynamicExtensions,
-            ...httpExtension
+            ...httpExtension,
+            previewExtension
        ];

        // 创建编辑器状态
@@ -198,19 +301,9 @@ export const useEditorStore = defineStore('editor', () => {
            extensions
        });

-        // 创建编辑器视图
-        const view = new EditorView({
+        return new EditorView({
            state
        });
-
-        // 将光标定位到文档末尾并滚动到该位置
-        const docLength = view.state.doc.length;
-        view.dispatch({
-            selection: {anchor: docLength, head: docLength},
-            scrollIntoView: true
-        });
-
-        return view;
    };

    // 添加编辑器到缓存
@@ -222,7 +315,9 @@ export const useEditorStore = defineStore('editor', () => {
            isDirty: false,
            lastModified: new Date(),
            autoSaveTimer: createTimerManager(),
-            syntaxTreeCache: null
+            syntaxTreeCache: null,
+            // 修复：创建实例时从 documentStore 读取持久化的编辑器状态
+            editorState: documentStore.documentStates[documentId]
        };

        // 使用LRU缓存的onEvict回调处理被驱逐的实例
@@ -260,10 +355,19 @@ export const useEditorStore = defineStore('editor', () => {
        // 创建新的编辑器实例
        const view = await createEditorInstance(content, operationId, documentId);
        
-        // 最终检查操作有效性
+        // 完善取消操作时的清理逻辑
        if (!operationManager.isOperationValid(operationId, documentId)) {
-            // 如果操作已取消，清理创建的实例
+            // 如果操作已取消，彻底清理创建的实例
+            try {
+                // 移除 DOM 元素（如果已添加到文档）
+                if (view.dom && view.dom.parentElement) {
+                    view.dom.remove();
+                }
+                // 销毁编辑器视图
                view.destroy();
+            } catch (error) {
+                console.error('Error cleaning up cancelled editor:', error);
+            }
            throw new Error('Operation cancelled');
        }

@@ -283,9 +387,6 @@ export const useEditorStore = defineStore('editor', () => {
                currentEditor.value.dom.remove();
            }

-            // 确保容器为空
-            containerElement.value.innerHTML = '';
-
            // 将目标编辑器DOM添加到容器
            containerElement.value.appendChild(instance.view.dom);
            currentEditor.value = instance.view;
@@ -293,21 +394,19 @@ export const useEditorStore = defineStore('editor', () => {
            // 设置扩展管理器视图
            setExtensionManagerView(instance.view, documentId);

-            // 重新测量和聚焦编辑器
+            //使用 nextTick + requestAnimationFrame 确保 DOM 完全渲染
            nextTick(() => {
-                // 将光标定位到文档末尾并滚动到该位置
-                const docLength = instance.view.state.doc.length;
-                instance.view.dispatch({
-                    selection: {anchor: docLength, head: docLength},
-                    scrollIntoView: true
-                });
+                requestAnimationFrame(() => {
+                    // 恢复编辑器状态（光标位置和滚动位置）
+                    restoreEditorState(instance, documentId);
                    
-                // 滚动到文档底部（将光标位置滚动到可见区域）
+                    // 聚焦编辑器
                    instance.view.focus();
                    
                    // 使用缓存的语法树确保方法
                    ensureSyntaxTreeCached(instance.view, documentId);
                });
+            });
        } catch (error) {
            console.error('Error showing editor:', error);
        }
@@ -340,17 +439,20 @@ export const useEditorStore = defineStore('editor', () => {
    };

    // 内容变化处理
-    const onContentChange = (documentId: number) => {
+    const onContentChange = () => {
+        const documentId = documentStore.currentDocumentId;
+        if (!documentId) return;
        const instance = editorCache.get(documentId);
        if (!instance) return;

+        // 立即设置脏标记和修改时间（切换文档时需要判断）
        instance.isDirty = true;
        instance.lastModified = new Date();
        
-        // 清理语法树缓存，下次访问时重新构建
-        instance.syntaxTreeCache = null;
+        // 优使用防抖清理语法树缓存
+        debouncedClearSyntaxCache.debouncedFn(instance);

-        // 设置自动保存定时器
+        // 设置自动保存定时器（已经是防抖效果：每次重置定时器）
        instance.autoSaveTimer.set(() => {
            saveEditorContent(documentId);
        }, getAutoSaveDelay());
@@ -370,7 +472,8 @@ export const useEditorStore = defineStore('editor', () => {

    // 加载编辑器
    const loadEditor = async (documentId: number, content: string) => {
-        // 设置加载状态
+        // 修复：使用计数器精确管理加载状态
+        loadingOperations.value++;
        isLoading.value = true;
        
        // 开始新的操作
@@ -419,6 +522,9 @@ export const useEditorStore = defineStore('editor', () => {
                    instance.isDirty = false;
                    // 清理语法树缓存，因为内容已更新
                    instance.syntaxTreeCache = null;
+                    // 修复：内容变了，清空光标位置，避免越界
+                    instance.editorState = undefined;
+                    delete documentStore.documentStates[documentId];
                }
            }

@@ -440,15 +546,20 @@ export const useEditorStore = defineStore('editor', () => {
            // 完成操作
            operationManager.completeOperation(operationId);
            
-            // 延迟一段时间后再取消加载状态
+            // 修复：使用计数器精确管理加载状态，避免快速切换时状态不准确
+            loadingOperations.value--;
+            // 延迟一段时间后再取消加载状态，但要确保所有操作都完成了
            setTimeout(() => {
+                if (loadingOperations.value <= 0) {
+                    loadingOperations.value = 0;
                    isLoading.value = false;
+                }
            }, EDITOR_CONFIG.LOADING_DELAY);
        }
    };

    // 移除编辑器
-    const removeEditor = (documentId: number) => {
+    const removeEditor = async (documentId: number) => {
        const instance = editorCache.get(documentId);
        if (instance) {
            try {
@@ -457,6 +568,20 @@ export const useEditorStore = defineStore('editor', () => {
                    operationManager.cancelAllOperations();
                }

+                // 修复：移除前先保存内容（如果有未保存的修改）
+                if (instance.isDirty) {
+                    await saveEditorContent(documentId);
+                }
+
+                // 保存光标位置
+                if (instance.view && instance.view.state) {
+                    const currentState: EditorViewState = {
+                        cursorPos: instance.view.state.selection.main.head
+                    };
+                    // 保存到 documentStore 用于持久化
+                    documentStore.documentStates[documentId] = currentState;
+                }
+
                // 清除自动保存定时器
                instance.autoSaveTimer.clear();

@@ -538,6 +663,16 @@ export const useEditorStore = defineStore('editor', () => {
        operationManager.cancelAllOperations();
        
        editorCache.clear((_documentId, instance) => {
+            // 修复：清空前只保存光标位置
+            if (instance.view) {
+                const currentState: EditorViewState = {
+                    cursorPos: instance.view.state.selection.main.head
+                };
+                // 同时保存到实例和 documentStore
+                instance.editorState = currentState;
+                documentStore.documentStates[instance.documentId] = currentState;
+            }
+            
            // 清除自动保存定时器
            instance.autoSaveTimer.clear();
            
@@ -552,6 +687,10 @@ 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;
    };

@@ -579,12 +718,24 @@ export const useEditorStore = defineStore('editor', () => {
    };

    // 监听文档切换
-    watch(() => documentStore.currentDocument, async (newDoc) => {
+    watch(() => documentStore.currentDocument, async (newDoc, oldDoc) => {
        if (newDoc && containerElement.value) {
-            // 使用 nextTick 确保DOM更新完成后再加载编辑器
-            await nextTick(() => {
+            // 修复：在切换到新文档前，只保存旧文档的光标位置
+            if (oldDoc && oldDoc.id !== newDoc.id && currentEditor.value) {
+                const oldInstance = editorCache.get(oldDoc.id);
+                if (oldInstance) {
+                    const currentState: EditorViewState = {
+                        cursorPos: currentEditor.value.state.selection.main.head
+                    };
+                    // 同时保存到实例和 documentStore
+                    oldInstance.editorState = currentState;
+                    documentStore.documentStates[oldDoc.id] = currentState;
+                }
+            }
+            
+            // 等待 DOM 更新完成，再加载新文档的编辑器
+            await nextTick();
            loadEditor(newDoc.id, newDoc.content);
-            });
        }
    });

--- a/frontend/src/stores/panelStore.ts
+++ b/frontend/src/stores/panelStore.ts
@@ -0,0 +1,170 @@
+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
+  };
+});
+
--- a/frontend/src/stores/updateStore.ts
+++ b/frontend/src/stores/updateStore.ts
@@ -1,5 +1,5 @@
 import { defineStore } from 'pinia';
-import { computed, readonly, ref, shallowRef, onScopeDispose } from 'vue';
+import { computed, readonly, ref, onScopeDispose } from 'vue';
 import { CheckForUpdates, ApplyUpdate, RestartApplication } from '@/../bindings/voidraft/internal/services/selfupdateservice';
 import { SelfUpdateResult } from '@/../bindings/voidraft/internal/services/models';
 import { useConfigStore } from './configStore';
--- a/frontend/src/views/editor/Editor.vue
+++ b/frontend/src/views/editor/Editor.vue
@@ -55,9 +55,11 @@ onBeforeUnmount(() => {

 <template>
  <div class="editor-container">
-    <LoadingScreen v-if="editorStore.isLoading && enableLoadingAnimation" text="VOIDRAFT"/>
    <div ref="editorElement" class="editor"></div>
    <Toolbar/>
+    <transition name="loading-fade">
+      <LoadingScreen v-if="editorStore.isLoading && enableLoadingAnimation" text="VOIDRAFT"/>
+    </transition>
  </div>
 </template>

@@ -85,4 +87,15 @@ onBeforeUnmount(() => {
 :deep(.cm-scroller) {
  overflow: auto;
 }
+
+// 加载动画过渡效果
+.loading-fade-enter-active,
+.loading-fade-leave-active {
+  transition: opacity 0.3s ease;
+}
+
+.loading-fade-enter-from,
+.loading-fade-leave-to {
+  opacity: 0;
+}
 </style>
--- a/frontend/src/views/editor/basic/contentChangeExtension.ts
+++ b/frontend/src/views/editor/basic/contentChangeExtension.ts
@@ -1,5 +1,4 @@
 import { EditorView, ViewPlugin, ViewUpdate } from '@codemirror/view';
-import { useDocumentStore } from '@/stores/documentStore';
 import { useEditorStore } from '@/stores/editorStore';

 /**
@@ -8,7 +7,6 @@ import { useEditorStore } from '@/stores/editorStore';
 export function createContentChangePlugin() {
  return ViewPlugin.fromClass(
    class ContentChangePlugin {
-      private documentStore = useDocumentStore();
      private editorStore = useEditorStore();
      private lastContent = '';

@@ -24,11 +22,8 @@ export function createContentChangePlugin() {

        this.lastContent = newContent;
        
-        // 通知编辑器管理器内容已变化
-        const currentDocId = this.documentStore.currentDocumentId;
-        if (currentDocId) {
-          this.editorStore.onContentChange(currentDocId);
-        }
+        this.editorStore.onContentChange();
+        
      }

      destroy() {
--- a/frontend/src/views/editor/extensions/codeblock/cursorProtection.ts
+++ b/frontend/src/views/editor/extensions/codeblock/cursorProtection.ts
@@ -0,0 +1,151 @@
+/**
+ * 光标保护扩展
+ * 防止光标通过方向键移动到分隔符区域
+ */
+
+import { EditorView } from '@codemirror/view';
+import { EditorSelection } from '@codemirror/state';
+import { blockState } from './state';
+import { Block } from './types';
+
+/**
+ * 二分查找：找到包含指定位置的块
+ * blocks 数组按位置排序，使用二分查找 O(log n)
+ */
+function findBlockAtPos(blocks: Block[], pos: number): Block | null {
+    let left = 0;
+    let right = blocks.length - 1;
+
+    while (left <= right) {
+        const mid = Math.floor((left + right) / 2);
+        const block = blocks[mid];
+
+        if (pos < block.range.from) {
+            // 位置在当前块之前
+            right = mid - 1;
+        } else if (pos > block.range.to) {
+            // 位置在当前块之后
+            left = mid + 1;
+        } else {
+            // 位置在当前块范围内
+            return block;
+        }
+    }
+
+    return null;
+}
+
+/**
+ * 检查位置是否在分隔符区域内
+ */
+function isInDelimiter(view: EditorView, pos: number): boolean {
+    try {
+        const blocks = view.state.field(blockState, false);
+        if (!blocks || blocks.length === 0) return false;
+
+        const block = findBlockAtPos(blocks, pos);
+        if (!block) return false;
+
+        // 检查是否在该块的分隔符区域内
+        return pos >= block.delimiter.from && pos < block.delimiter.to;
+    } catch {
+        return false;
+    }
+}
+
+/**
+ * 调整光标位置，跳过分隔符区域
+ */
+function adjustPosition(view: EditorView, pos: number, forward: boolean): number {
+    try {
+        const blocks = view.state.field(blockState, false);
+        if (!blocks || blocks.length === 0) return pos;
+
+        const block = findBlockAtPos(blocks, pos);
+        if (!block) return pos;
+
+        // 如果位置在分隔符内
+        if (pos >= block.delimiter.from && pos < block.delimiter.to) {
+            // 向前移动：跳到该块内容的开始
+            // 向后移动：跳到前一个块的内容末尾
+            if (forward) {
+                return block.content.from;
+            } else {
+                // 找到前一个块的索引
+                const blockIndex = blocks.indexOf(block);
+                if (blockIndex > 0) {
+                    const prevBlock = blocks[blockIndex - 1];
+                    return prevBlock.content.to;
+                }
+                return block.delimiter.from;
+            }
+        }
+
+        return pos;
+    } catch {
+        return pos;
+    }
+}
+
+/**
+ * 光标保护扩展
+ * 拦截方向键移动，防止光标进入分隔符区域
+ */
+export function createCursorProtection() {
+    return EditorView.domEventHandlers({
+        keydown(event, view) {
+            // 只处理方向键
+            if (!['ArrowLeft', 'ArrowRight', 'ArrowUp', 'ArrowDown'].includes(event.key)) {
+                return false;
+            }
+
+            // 获取当前光标位置
+            const selection = view.state.selection.main;
+            const currentPos = selection.head;
+
+            // 计算目标位置
+            let targetPos = currentPos;
+            
+            if (event.key === 'ArrowLeft') {
+                targetPos = Math.max(0, currentPos - 1);
+            } else if (event.key === 'ArrowRight') {
+                targetPos = Math.min(view.state.doc.length, currentPos + 1);
+            } else if (event.key === 'ArrowUp') {
+                const line = view.state.doc.lineAt(currentPos);
+                if (line.number > 1) {
+                    const prevLine = view.state.doc.line(line.number - 1);
+                    const col = currentPos - line.from;
+                    targetPos = Math.min(prevLine.from + col, prevLine.to);
+                }
+            } else if (event.key === 'ArrowDown') {
+                const line = view.state.doc.lineAt(currentPos);
+                if (line.number < view.state.doc.lines) {
+                    const nextLine = view.state.doc.line(line.number + 1);
+                    const col = currentPos - line.from;
+                    targetPos = Math.min(nextLine.from + col, nextLine.to);
+                }
+            }
+
+            // 检查目标位置是否在分隔符内
+            if (isInDelimiter(view, targetPos)) {
+                // 调整位置
+                const forward = event.key === 'ArrowRight' || event.key === 'ArrowDown';
+                const adjustedPos = adjustPosition(view, targetPos, forward);
+
+                // 移动光标到调整后的位置
+                view.dispatch({
+                    selection: EditorSelection.cursor(adjustedPos),
+                    scrollIntoView: true,
+                    userEvent: 'select'
+                });
+
+                // 阻止默认行为
+                event.preventDefault();
+                return true;
+            }
+
+            return false;
+        }
+    });
+}
+
--- a/frontend/src/views/editor/extensions/codeblock/index.ts
+++ b/frontend/src/views/editor/extensions/codeblock/index.ts
@@ -25,6 +25,7 @@ import {getCodeBlockLanguageExtension} from './lang-parser';
 import {createLanguageDetection} from './lang-detect';
 import {SupportedLanguage} from './types';
 import {getMathBlockExtensions} from './mathBlock';
+import {createCursorProtection} from './cursorProtection';

 /**
 * 代码块扩展配置选项
@@ -108,6 +109,9 @@ export function createCodeBlockExtension(options: CodeBlockOptions = {}): Extens
            showBackground
        }),

+        // 光标保护（防止方向键移动到分隔符上）
+        createCursorProtection(),
+
        // 块选择功能
        ...getBlockSelectExtensions(),

@@ -129,6 +133,12 @@ export {
    type CreateBlockOptions,
 } from './types';

+// 导出解析器函数
+export {
+    getActiveBlock,
+    getBlockFromPos
+} from './parser';
+
 // 状态管理
 export {
    blockState,
@@ -207,6 +217,11 @@ export {
    getMathBlockExtensions
 } from './mathBlock';

+// 光标保护功能
+export {
+    createCursorProtection
+} from './cursorProtection';
+
 /**
 * 默认导出
 */
--- a/frontend/src/views/editor/extensions/codeblock/lang-parser/codeblock.grammar
+++ b/frontend/src/views/editor/extensions/codeblock/lang-parser/codeblock.grammar
@@ -18,7 +18,7 @@ BlockLanguage {
  "go" | "clj" | "ex" | "erl" | "js" | "ts" | "swift" | "kt" | "groovy" | 
  "ps1" | "dart" | "scala" | "math" | "dockerfile" | "lua" | "vue" | "lezer" |
  "liquid" | "wast" | "sass" | "less" | "angular" | "svelte" |
-  "http"
+  "http" | "mermaid"
 }

@tokens {
--- a/frontend/src/views/editor/extensions/codeblock/lang-parser/languages.ts
+++ b/frontend/src/views/editor/extensions/codeblock/lang-parser/languages.ts
@@ -24,7 +24,7 @@ import {lessLanguage} from "@codemirror/lang-less";
 import {angularLanguage} from "@codemirror/lang-angular";
 import { svelteLanguage } from "@replit/codemirror-lang-svelte";
 import { httpLanguage } from "@/views/editor/extensions/httpclient/language/http-language";
-
+import { mermaidLanguage } from '@/views/editor/language/mermaid';
 import {StreamLanguage} from "@codemirror/language";
 import {ruby} from "@codemirror/legacy-modes/mode/ruby";
 import {shell} from "@codemirror/legacy-modes/mode/shell";
@@ -226,6 +226,7 @@ export const LANGUAGES: LanguageInfo[] = [
        }
    }),
    new LanguageInfo("http", "Http", httpLanguage.parser, ["http"]),
+    new LanguageInfo("mermaid", "Mermaid", mermaidLanguage.parser, ["mermaid"]),

 ];

--- a/frontend/src/views/editor/extensions/codeblock/lang-parser/parser.ts
+++ b/frontend/src/views/editor/extensions/codeblock/lang-parser/parser.ts
@@ -3,14 +3,14 @@ import {LRParser} from "@lezer/lr"
 import {blockContent} from "./external-tokens.js"
 export const parser = LRParser.deserialize({
  version: 14,
-  states: "!jQQOQOOOVOQO'#C`O#xOPO'#C_OOOO'#Cc'#CcQQOQOOOOOO'#Ca'#CaO#}OSO,58zOOOO,58y,58yOOOO-E6a-E6aOOOP1G.f1G.fO$VOSO1G.fOOOP7+$Q7+$Q",
-  stateData: "$[~OXPO~OYTOZTO[TO]TO^TO_TO`TOaTObTOcTOdTOeTOfTOgTOhTOiTOjTOkTOlTOmTOnTOoTOpTOqTOrTOsTOtTOuTOvTOwTOxTOyTOzTO{TO|TO}TO!OTO!PTO!QTO!RTO!STO~OPVO~OUYO!TXO~O!TZO~O",
+  states: "!jQQOQOOOVOQO'#C`O#{OPO'#C_OOOO'#Cc'#CcQQOQOOOOOO'#Ca'#CaO$QOSO,58zOOOO,58y,58yOOOO-E6a-E6aOOOP1G.f1G.fO$YOSO1G.fOOOP7+$Q7+$Q",
+  stateData: "$_~OXPO~OYTOZTO[TO]TO^TO_TO`TOaTObTOcTOdTOeTOfTOgTOhTOiTOjTOkTOlTOmTOnTOoTOpTOqTOrTOsTOtTOuTOvTOwTOxTOyTOzTO{TO|TO}TO!OTO!PTO!QTO!RTO!STO!TTO~OPVO~OUYO!UXO~O!UZO~O",
  goto: "jWPPPX]aPdTROSTQOSRUPQSORWS",
  nodeNames: "⚠ BlockContent Document Block BlockDelimiter BlockLanguage Auto",
-  maxTerm: 51,
+  maxTerm: 52,
  skippedNodes: [0],
  repeatNodeCount: 1,
-  tokenData: "3u~RdYZ!a}!O!z#T#U#V#V#W$Q#W#X%R#X#Y&t#Z#['_#[#]([#^#_)R#_#`*Q#`#a*]#a#b,Y#d#e,y#f#g-r#g#h.V#h#i0|#j#k2R#k#l2d#l#m2{#m#n3^R!fP!TQ%&x%&y!iP!lP%&x%&y!oP!rP%&x%&y!uP!zOXP~!}P#T#U#Q~#VOU~~#YP#b#c#]~#`P#Z#[#c~#fP#i#j#i~#lP#`#a#o~#rP#T#U#u~#xP#f#g#{~$QO!Q~~$TR#`#a$^#d#e$i#g#h$t~$aP#^#_$d~$iOl~~$lP#d#e$o~$tOd~~$yPf~#g#h$|~%ROb~~%UQ#T#U%[#c#d%m~%_P#f#g%b~%eP#h#i%h~%mOu~~%pP#V#W%s~%vP#_#`%y~%|P#X#Y&P~&SP#f#g&V~&YP#Y#Z&]~&`P#]#^&c~&fP#`#a&i~&lP#X#Y&o~&tOx~~&wQ#f#g&}#l#m'Y~'QP#`#a'T~'YOn~~'_Om~~'bQ#c#d'h#f#g'm~'mOk~~'pP#c#d's~'vP#c#d'y~'|P#j#k(P~(SP#m#n(V~([Os~~(_P#h#i(b~(eQ#a#b(k#h#i(v~(nP#`#a(q~(vO]~~(yP#d#e(|~)RO!S~~)UQ#T#U)[#g#h)m~)_P#j#k)b~)eP#T#U)h~)mO`~~)rPo~#c#d)u~)xP#b#c){~*QOZ~~*TP#h#i*W~*]Or~~*`R#X#Y*i#]#^+`#i#j+}~*lQ#g#h*r#n#o*}~*uP#g#h*x~*}O!P~~+QP#X#Y+T~+WP#f#g+Z~+`O{~~+cP#e#f+f~+iP#i#j+l~+oP#]#^+r~+uP#W#X+x~+}O|~~,QP#T#U,T~,YOy~~,]Q#T#U,c#W#X,t~,fP#h#i,i~,lP#[#],o~,tOw~~,yO_~~,|R#[#]-V#g#h-b#m#n-m~-YP#d#e-]~-bOa~~-eP!R!S-h~-mOt~~-rO[~~-uQ#U#V-{#g#h.Q~.QOg~~.VOe~~.YU#T#U.l#V#W.}#[#]/f#e#f/k#j#k/v#k#l0e~.oP#g#h.r~.uP#g#h.x~.}O!O~~/QP#T#U/T~/WP#`#a/Z~/^P#T#U/a~/fOv~~/kOh~~/nP#`#a/q~/vO^~~/yP#X#Y/|~0PP#`#a0S~0VP#h#i0Y~0]P#X#Y0`~0eO!R~~0hP#]#^0k~0nP#Y#Z0q~0tP#h#i0w~0|Oq~~1PR#X#Y1Y#c#d1k#g#h1|~1]P#l#m1`~1cP#h#i1f~1kOY~~1nP#a#b1q~1tP#`#a1w~1|Oj~~2ROp~~2UP#i#j2X~2[P#X#Y2_~2dOz~~2gP#T#U2j~2mP#g#h2p~2sP#h#i2v~2{O}~~3OP#a#b3R~3UP#`#a3X~3^Oc~~3aP#T#U3d~3gP#a#b3j~3mP#`#a3p~3uOi~",
+  tokenData: "4m~RdYZ!a}!O!z#T#U#V#V#W$Q#W#X%R#X#Y&t#Z#['_#[#]([#^#_)R#_#`*Q#`#a*]#a#b,Y#d#e-q#f#g.j#g#h.}#h#i1t#j#k2y#k#l3[#l#m3s#m#n4UR!fP!UQ%&x%&y!iP!lP%&x%&y!oP!rP%&x%&y!uP!zOXP~!}P#T#U#Q~#VOU~~#YP#b#c#]~#`P#Z#[#c~#fP#i#j#i~#lP#`#a#o~#rP#T#U#u~#xP#f#g#{~$QO!Q~~$TR#`#a$^#d#e$i#g#h$t~$aP#^#_$d~$iOl~~$lP#d#e$o~$tOd~~$yPf~#g#h$|~%ROb~~%UQ#T#U%[#c#d%m~%_P#f#g%b~%eP#h#i%h~%mOu~~%pP#V#W%s~%vP#_#`%y~%|P#X#Y&P~&SP#f#g&V~&YP#Y#Z&]~&`P#]#^&c~&fP#`#a&i~&lP#X#Y&o~&tOx~~&wQ#f#g&}#l#m'Y~'QP#`#a'T~'YOn~~'_Om~~'bQ#c#d'h#f#g'm~'mOk~~'pP#c#d's~'vP#c#d'y~'|P#j#k(P~(SP#m#n(V~([Os~~(_P#h#i(b~(eQ#a#b(k#h#i(v~(nP#`#a(q~(vO]~~(yP#d#e(|~)RO!S~~)UQ#T#U)[#g#h)m~)_P#j#k)b~)eP#T#U)h~)mO`~~)rPo~#c#d)u~)xP#b#c){~*QOZ~~*TP#h#i*W~*]Or~~*`R#X#Y*i#]#^+`#i#j+}~*lQ#g#h*r#n#o*}~*uP#g#h*x~*}O!P~~+QP#X#Y+T~+WP#f#g+Z~+`O{~~+cP#e#f+f~+iP#i#j+l~+oP#]#^+r~+uP#W#X+x~+}O|~~,QP#T#U,T~,YOy~~,]R#T#U,f#W#X,w#X#Y,|~,iP#h#i,l~,oP#[#],r~,wOw~~,|O_~~-PP#f#g-S~-VP#a#b-Y~-]P#T#U-`~-cP#]#^-f~-iP#W#X-l~-qO!T~~-tR#[#]-}#g#h.Y#m#n.e~.QP#d#e.T~.YOa~~.]P!R!S.`~.eOt~~.jO[~~.mQ#U#V.s#g#h.x~.xOg~~.}Oe~~/QU#T#U/d#V#W/u#[#]0^#e#f0c#j#k0n#k#l1]~/gP#g#h/j~/mP#g#h/p~/uO!O~~/xP#T#U/{~0OP#`#a0R~0UP#T#U0X~0^Ov~~0cOh~~0fP#`#a0i~0nO^~~0qP#X#Y0t~0wP#`#a0z~0}P#h#i1Q~1TP#X#Y1W~1]O!R~~1`P#]#^1c~1fP#Y#Z1i~1lP#h#i1o~1tOq~~1wR#X#Y2Q#c#d2c#g#h2t~2TP#l#m2W~2ZP#h#i2^~2cOY~~2fP#a#b2i~2lP#`#a2o~2tOj~~2yOp~~2|P#i#j3P~3SP#X#Y3V~3[Oz~~3_P#T#U3b~3eP#g#h3h~3kP#h#i3n~3sO}~~3vP#a#b3y~3|P#`#a4P~4UOc~~4XP#T#U4[~4_P#a#b4b~4eP#`#a4h~4mOi~",
  tokenizers: [blockContent, 0, 1],
  topRules: {"Document":[0,2]},
  tokenPrec: 0
--- a/frontend/src/views/editor/extensions/codeblock/parser.ts
+++ b/frontend/src/views/editor/extensions/codeblock/parser.ts
@@ -4,7 +4,7 @@

 import { EditorState } from '@codemirror/state';
 import { syntaxTree, syntaxTreeAvailable } from '@codemirror/language';
-import { Block as BlockNode, BlockDelimiter, BlockContent, BlockLanguage, Document } from './lang-parser/parser.terms.js';
+import { Block as BlockNode, BlockDelimiter, BlockContent, BlockLanguage } from './lang-parser/parser.terms.js';
 import {
    SupportedLanguage,
    DELIMITER_REGEX,
--- a/frontend/src/views/editor/extensions/codeblock/types.ts
+++ b/frontend/src/views/editor/extensions/codeblock/types.ts
@@ -66,6 +66,7 @@ export type SupportedLanguage =
    | 'angular'
    | 'svelte'
    | 'http'        // HTTP Client
+    | 'mermaid'

 /**
 * 创建块的选项
@@ -85,7 +86,6 @@ export interface EditorOptions {
 }


-
 // 分隔符格式常量
 export const DELIMITER_REGEX = /^\n∞∞∞([a-zA-Z0-9_-]+)(-a)?\n/gm;
 export const DELIMITER_PREFIX = '\n∞∞∞';
--- a/frontend/src/views/editor/extensions/httpclient/widgets/run-gutter.ts
+++ b/frontend/src/views/editor/extensions/httpclient/widgets/run-gutter.ts
@@ -26,11 +26,24 @@ interface CachedHttpRequest {
  request: HttpRequest;      // 完整的解析结果
 }

+/**
+ * 快速检查节点是否包含错误
+ * 使用游标直接遍历子节点，避免创建迭代器的开销
+ */
+function hasErrorNode(node: any): boolean {
+  let child = node.firstChild;
+  while (child) {
+    if (child.name === '⚠') return true;
+    // 递归检查子节点
+    if (child.firstChild && hasErrorNode(child)) return true;
+    child = child.nextSibling;
+  }
+  return false;
+}
+
 /**
 * 预解析所有 HTTP 块中的请求
 * 只在文档改变时调用，结果缓存在 StateField 中
- * 
- * 优化：一次遍历完成验证和解析，避免重复工作
 */
 function parseHttpRequests(state: any): Map<number, CachedHttpRequest> {
  const requestsMap = new Map<number, CachedHttpRequest>();
@@ -38,28 +51,22 @@ function parseHttpRequests(state: any): Map<number, CachedHttpRequest> {
  
  if (!blocks) return requestsMap;
  
+  // 提前过滤出所有 HTTP 块
+  const httpBlocks = blocks.filter((block: any) => block.language.name === 'http');
+  if (httpBlocks.length === 0) return requestsMap;
+  
  const tree = syntaxTree(state);
  
  // 只遍历 HTTP 块
-  for (const block of blocks) {
-    if (block.language.name !== 'http') continue;
-    
+  for (const block of httpBlocks) {
    // 在块范围内查找所有 RequestStatement
    tree.iterate({
      from: block.content.from,
      to: block.content.to,
      enter: (node) => {
        if (node.name === NODE_TYPES.REQUEST_STATEMENT) {
-          // 检查是否包含错误节点
-          let hasError = false;
-          node.node.cursor().iterate((nodeRef) => {
-            if (nodeRef.name === '⚠') {
-              hasError = true;
-              return false;
-            }
-          });
-          
-          if (hasError) return;
+          // 使用快速错误检查
+          if (hasErrorNode(node.node)) return;
          
          // 直接解析请求
          const request = parseHttpRequest(state, node.from,{from: block.content.from, to: block.content.to});
--- a/frontend/src/views/editor/extensions/markdownPreview/index.ts
+++ b/frontend/src/views/editor/extensions/markdownPreview/index.ts
@@ -0,0 +1,62 @@
+/**
+ * Markdown 预览扩展主入口
+ */
+import { EditorView } from "@codemirror/view";
+import { useThemeStore } from "@/stores/themeStore";
+import { usePanelStore } from "@/stores/panelStore";
+import { useDocumentStore } from "@/stores/documentStore";
+import { getActiveNoteBlock } from "../codeblock/state";
+import { createMarkdownPreviewTheme } from "./styles";
+import { previewPanelState, previewPanelPlugin, togglePreview, closePreviewWithAnimation } from "./state";
+
+/**
+ * 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
+  if (!activeBlock || activeBlock.language.name.toLowerCase() !== 'md') {
+    return false;
+  }
+  
+  // 获取当前文档ID
+  const currentDocumentId = documentStore.currentDocumentId;
+  if (currentDocumentId === null) {
+    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);
+  } 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
+  }
+
+  return true;
+}
+
+/**
+ * 导出 Markdown 预览扩展
+ */
+export function markdownPreviewExtension() {
+  const themeStore = useThemeStore();
+  const colors = themeStore.currentColors;
+  
+  const theme = colors ? createMarkdownPreviewTheme(colors) : EditorView.baseTheme({});
+  
+  return [previewPanelState, previewPanelPlugin, theme];
+}
--- a/frontend/src/views/editor/extensions/markdownPreview/markdownRenderer.ts
+++ b/frontend/src/views/editor/extensions/markdownPreview/markdownRenderer.ts
@@ -0,0 +1,117 @@
+/**
+ * Markdown 渲染器配置和自定义插件
+ */
+import MarkdownIt from 'markdown-it';
+import {tasklist} from "@mdit/plugin-tasklist";
+import {katex} from "@mdit/plugin-katex";
+import markPlugin from "@/common/markdown-it/plugins/markdown-it-mark";
+import hljs from 'highlight.js';
+import 'highlight.js/styles/default.css';
+import {full as emoji} from '@/common/markdown-it/plugins/markdown-it-emojis/'
+import footnote_plugin from "@/common/markdown-it/plugins/markdown-it-footnote"
+import sup_plugin from "@/common/markdown-it/plugins/markdown-it-sup"
+import ins_plugin from "@/common/markdown-it/plugins/markdown-it-ins"
+import deflist_plugin from "@/common/markdown-it/plugins/markdown-it-deflist"
+import abbr_plugin from "@/common/markdown-it/plugins/markdown-it-abbr"
+import sub_plugin from "@/common/markdown-it/plugins/markdown-it-sub"
+import {MermaidIt} from "@/common/markdown-it/plugins/markdown-it-mermaid"
+import {useThemeStore} from '@/stores/themeStore'
+
+/**
+ * 自定义链接插件：使用 data-href 替代 href，配合事件委托实现自定义跳转
+ */
+export function customLinkPlugin(md: MarkdownIt) {
+    // 保存默认的 link_open 渲染器
+    const defaultRender = md.renderer.rules.link_open || function (tokens, idx, options, env, self) {
+        return self.renderToken(tokens, idx, options);
+    };
+
+    // 重写 link_open 渲染器
+    md.renderer.rules.link_open = function (tokens, idx, options, env, self) {
+        const token = tokens[idx];
+
+        // 获取 href 属性
+        const hrefIndex = token.attrIndex('href');
+        if (hrefIndex >= 0) {
+            const href = token.attrs![hrefIndex][1];
+
+            // 添加 data-href 属性保存原始链接
+            token.attrPush(['data-href', href]);
+
+            // 添加 class 用于样式
+            const classIndex = token.attrIndex('class');
+            if (classIndex < 0) {
+                token.attrPush(['class', 'markdown-link']);
+            } else {
+                token.attrs![classIndex][1] += ' markdown-link';
+            }
+
+            // 移除 href 属性，防止默认跳转
+            token.attrs!.splice(hrefIndex, 1);
+        }
+
+        return defaultRender(tokens, idx, options, env, self);
+    };
+}
+
+/**
+ * 创建 Markdown-It 实例
+ */
+export function createMarkdownRenderer(): MarkdownIt {
+    const themeStore = useThemeStore();
+    const mermaidTheme = themeStore.isDarkMode ? "dark" : "default";
+    
+    return new MarkdownIt({
+        html: true,
+        linkify: true,
+        typographer: true,
+        breaks: true,
+        langPrefix: "language-",
+        highlight: (code, lang) => {
+            // 对于大代码块（>1000行），跳过高亮以提升性能
+            if (code.length > 50000) {
+                return `<pre><code>${code}</code></pre>`;
+            }
+            
+            if (lang && hljs.getLanguage(lang)) {
+                try {
+                    return hljs.highlight(code, {language: lang, ignoreIllegals: true}).value;
+                } catch (error) {
+                    console.warn(`Failed to highlight code block with language: ${lang}`, error);
+                    return code;
+                }
+            }
+            
+            // 对于中等大小的代码块（>5000字符），跳过自动检测
+            if (code.length > 5000) {
+                return code;
+            }
+            
+            // 小代码块才使用自动检测
+            try {
+                return hljs.highlightAuto(code).value;
+            } catch (error) {
+                console.warn('Failed to auto-highlight code block', error);
+                return code;
+            }
+        }
+    })
+        .use(tasklist, {
+            disabled: false,
+        })
+        .use(customLinkPlugin)
+        .use(markPlugin)
+        .use(emoji)
+        .use(footnote_plugin)
+        .use(sup_plugin)
+        .use(ins_plugin)
+        .use(deflist_plugin)
+        .use(abbr_plugin)
+        .use(sub_plugin)
+        .use(katex)
+        .use(MermaidIt, {
+            theme: mermaidTheme
+        });
+}
+
+
--- a/frontend/src/views/editor/extensions/markdownPreview/panel.ts
+++ b/frontend/src/views/editor/extensions/markdownPreview/panel.ts
@@ -0,0 +1,367 @@
+/**
+ * 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 themeUnwatch?: () => 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.themeUnwatch = watch(() => themeStore.isDarkMode, (isDark) => {
+      const newTheme = isDark ? "dark" : "default";
+      updateMermaidTheme(newTheme);
+      this.lastRenderedContent = ""; // 清空缓存，强制重新渲染
+    });
+
+    // 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>';
+        }
+      }
+    });
+  }
+
+  /**
+   * 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 = "";
+  }
+
+  /**
+   * 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();
+}
+
--- a/frontend/src/views/editor/extensions/markdownPreview/state.ts
+++ b/frontend/src/views/editor/extensions/markdownPreview/state.ts
@@ -0,0 +1,142 @@
+/**
+ * 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);
+  }
+});
+
--- a/frontend/src/views/editor/extensions/markdownPreview/styles.ts
+++ b/frontend/src/views/editor/extensions/markdownPreview/styles.ts
@@ -0,0 +1,356 @@
+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
+      }
+    },
+
+    // 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 ${isDark ? "rgba(110, 118, 129, 0.4)" : "rgba(175, 184, 193, 0.2)"}`,
+        borderRadius: "6px",
+        boxShadow: "inset 0 -1px 0 rgba(175, 184, 193, 0.2)"
+      },
+
+      // 首个子元素去除上边距
+      "& > *:first-child": {
+        marginTop: "0 !important"
+      },
+
+      // 最后一个子元素去除下边距
+      "& > *:last-child": {
+        marginBottom: "0 !important"
+      }
+    }
+  }, { dark: colors.dark });
+}
+
--- a/frontend/src/views/editor/extensions/markdownPreview/types.ts
+++ b/frontend/src/views/editor/extensions/markdownPreview/types.ts
@@ -0,0 +1,12 @@
+/**
+ * Markdown 预览面板相关类型定义
+ */
+
+// 预览面板状态
+export interface PreviewState {
+  documentId: number; // 预览所属的文档ID
+  blockFrom: number;
+  blockTo: number;
+  closing?: boolean; // 标记面板正在关闭
+}
+
--- a/frontend/src/views/editor/language/mermaid/build-parsers.js
+++ b/frontend/src/views/editor/language/mermaid/build-parsers.js
@@ -0,0 +1,57 @@
+import { buildParserFile } from '@lezer/generator';
+import { fileURLToPath } from 'url';
+import { dirname, join } from 'path';
+import { readFileSync, writeFileSync } from 'fs';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const parsersDir = join(__dirname, 'parsers');
+
+const parserTypes = [
+  'mermaid',
+  'mindmap',
+  'pie',
+  'flowchart',
+  'sequence',
+  'journey',
+  'requirement',
+  'gantt'
+];
+
+console.log('开始构建 Mermaid 语法解析器...\n');
+
+for (const type of parserTypes) {
+  try {
+    const grammarPath = join(parsersDir, type, `${type}.grammar`);
+    const outputPath = join(parsersDir, type, `${type}.parser.grammar.ts`);
+    
+    console.log(`正在处理: ${type}`);
+    console.log(`  读取: ${grammarPath}`);
+    
+    const grammar = readFileSync(grammarPath, 'utf-8');
+    const result = buildParserFile(grammar, {
+      fileName: `${type}.grammar`,
+      typeScript: true,
+      warn: (message) => console.warn(`  警告: ${message}`)
+    });
+    
+    writeFileSync(outputPath, result.parser);
+    console.log(`  ✓ 生成: ${outputPath}`);
+    
+    // 生成 terms 文件
+    if (result.terms) {
+      const termsPath = join(parsersDir, type, `${type}.grammar.terms.ts`);
+      writeFileSync(termsPath, result.terms);
+      console.log(`  ✓ 生成: ${termsPath}`);
+    }
+    
+    console.log('');
+  } catch (error) {
+    console.error(`  ✗ 错误: ${type} - ${error.message}\n`);
+    process.exit(1);
+  }
+}
+
+console.log('✓ 所有解析器构建完成！');
+
--- a/frontend/src/views/editor/language/mermaid/extensions/index.ts
+++ b/frontend/src/views/editor/language/mermaid/extensions/index.ts
@@ -0,0 +1,62 @@
+import { foldService } from '@codemirror/language';
+
+const countLeadingSpaces = (str: string) => {
+  let count = 0;
+
+  for (let i = 0; i < str.length; i++) {
+    if (str[i] === ' ') {
+      count++;
+    } else if (str[i] === '\t') {
+      count += 4;
+    } else {
+      break;
+    }
+  }
+
+  return count;
+};
+
+const isEmptyLine = (text: string) => {
+  return /^[ \t]*$/.test(text);
+};
+
+export const foldByIndent = () => {
+  return foldService.of((state, lineStart, lineEnd) => {
+    const line = state.doc.lineAt(lineStart);
+    const lineCount = state.doc.lines;
+
+    let indents = countLeadingSpaces(line.text);
+    let foldStart = lineStart;
+    let foldEnd = lineEnd;
+    let nextLine = line;
+
+    while (nextLine.number < lineCount) {
+      nextLine = state.doc.line(nextLine.number + 1);
+
+      if (nextLine.text === '' || isEmptyLine(nextLine.text)) continue;
+
+      let nextIndents = countLeadingSpaces(nextLine.text);
+
+      if (nextIndents > indents && !isEmptyLine(nextLine.text)) {
+        foldEnd = nextLine.to;
+      } else {
+        break;
+      }
+    }
+
+    if (
+      state.doc.lineAt(foldStart).number === state.doc.lineAt(foldEnd).number
+    ) {
+      return null;
+    }
+
+    foldStart = line.to;
+    const lineAtFoldStart = state.doc.lineAt(foldStart);
+
+    if (lineAtFoldStart.text === '' || isEmptyLine(lineAtFoldStart.text)) {
+      return null;
+    }
+
+    return { from: foldStart, to: foldEnd };
+  });
+};
--- a/frontend/src/views/editor/language/mermaid/index.ts
+++ b/frontend/src/views/editor/language/mermaid/index.ts
@@ -0,0 +1,45 @@
+export {
+  mermaidLanguage,
+  mindmapLanguage,
+  pieLanguage,
+  flowchartLanguage,
+  sequenceLanguage,
+  journeyLanguage,
+  requirementLanguage,
+  ganttLanguage,
+} from './language-definitions';
+
+export {
+  mermaidLanguageDescription,
+  mindmapLanguageDescription,
+  pieLanguageDescription,
+  flowchartLanguageDescription,
+  sequenceLanguageDescription,
+  journeyLanguageDescription,
+  requirementLanguageDescription,
+  ganttLanguageDescription,
+} from './language-descriptions';
+
+export {
+  mermaid,
+  mindmap,
+  pie,
+  flowchart,
+  sequence,
+  journey,
+  requirement,
+  gantt,
+} from './language-support';
+
+export {
+  mermaidTags,
+  mindmapTags,
+  pieTags,
+  flowchartTags,
+  sequenceTags,
+  journeyTags,
+  requirementTags,
+  ganttTags,
+} from './tags';
+
+export { foldByIndent } from './extensions';
--- a/frontend/src/views/editor/language/mermaid/language-definitions/index.ts
+++ b/frontend/src/views/editor/language/mermaid/language-definitions/index.ts
@@ -0,0 +1,74 @@
+import { LRLanguage } from '@codemirror/language';
+import { parseMixed } from '@lezer/common';
+import {
+  mermaidParser,
+  mindmapParser,
+  pieParser,
+  flowchartParser,
+  sequenceParser,
+  journeyParser,
+  requirementParser,
+  ganttParser,
+} from '../parsers';
+import { DiagramType, MermaidLanguageType } from '../types';
+
+export const mermaidLanguage = LRLanguage.define({
+  name: MermaidLanguageType.Mermaid,
+  parser: mermaidParser.configure({
+    wrap: parseMixed((node) => {
+      switch (node.name) {
+        case DiagramType.Mindmap:
+          return { parser: mindmapParser };
+        case DiagramType.Pie:
+          return { parser: pieParser };
+        case DiagramType.Flowchart:
+          return { parser: flowchartParser };
+        case DiagramType.Sequence:
+          return { parser: sequenceParser };
+        case DiagramType.Journey:
+          return { parser: journeyParser };
+        case DiagramType.Requirement:
+          return { parser: requirementParser };
+        case DiagramType.Gantt:
+          return { parser: ganttParser };
+        default:
+          return null;
+      }
+    }),
+  }),
+});
+
+export const mindmapLanguage = LRLanguage.define({
+  name: MermaidLanguageType.Mindmap,
+  parser: mindmapParser,
+});
+
+export const pieLanguage = LRLanguage.define({
+  name: MermaidLanguageType.Pie,
+  parser: pieParser,
+});
+
+export const flowchartLanguage = LRLanguage.define({
+  name: MermaidLanguageType.Flowchart,
+  parser: flowchartParser,
+});
+
+export const sequenceLanguage = LRLanguage.define({
+  name: MermaidLanguageType.Sequence,
+  parser: sequenceParser,
+});
+
+export const journeyLanguage = LRLanguage.define({
+  name: MermaidLanguageType.Journey,
+  parser: journeyParser,
+});
+
+export const requirementLanguage = LRLanguage.define({
+  name: MermaidLanguageType.Requirement,
+  parser: requirementParser,
+});
+
+export const ganttLanguage = LRLanguage.define({
+  name: MermaidLanguageType.Gantt,
+  parser: ganttParser,
+});
--- a/frontend/src/views/editor/language/mermaid/language-descriptions/index.ts
+++ b/frontend/src/views/editor/language/mermaid/language-descriptions/index.ts
@@ -0,0 +1,71 @@
+import { LanguageDescription } from '@codemirror/language';
+import {
+  mermaid,
+  mindmap,
+  pie,
+  flowchart,
+  sequence,
+  journey,
+  requirement,
+  gantt,
+} from '../language-support';
+import { MermaidDescriptionName, MermaidAlias } from '../types';
+
+export const mermaidLanguageDescription = LanguageDescription.of({
+  name: MermaidDescriptionName.Mermaid,
+  load: async () => {
+    return mermaid();
+  },
+});
+
+export const mindmapLanguageDescription = LanguageDescription.of({
+  name: MermaidDescriptionName.Mindmap,
+  load: async () => {
+    return mindmap();
+  },
+});
+
+export const pieLanguageDescription = LanguageDescription.of({
+  name: MermaidDescriptionName.Pie,
+  load: async () => {
+    return pie();
+  },
+});
+
+export const flowchartLanguageDescription = LanguageDescription.of({
+  name: MermaidDescriptionName.Flowchart,
+  alias: [MermaidAlias.Graph],
+  load: async () => {
+    return flowchart();
+  },
+});
+
+export const sequenceLanguageDescription = LanguageDescription.of({
+  name: MermaidDescriptionName.Sequence,
+  alias: [MermaidAlias.Sequence],
+  load: async () => {
+    return sequence();
+  },
+});
+
+export const journeyLanguageDescription = LanguageDescription.of({
+  name: MermaidDescriptionName.Journey,
+  load: async () => {
+    return journey();
+  },
+});
+
+export const requirementLanguageDescription = LanguageDescription.of({
+  name: MermaidDescriptionName.Requirement,
+  alias: [MermaidAlias.Requirement],
+  load: async () => {
+    return requirement();
+  },
+});
+
+export const ganttLanguageDescription = LanguageDescription.of({
+  name: MermaidDescriptionName.Gantt,
+  load: async () => {
+    return gantt();
+  },
+});
--- a/frontend/src/views/editor/language/mermaid/language-support/index.ts
+++ b/frontend/src/views/editor/language/mermaid/language-support/index.ts
@@ -0,0 +1,43 @@
+import { LanguageSupport } from '@codemirror/language';
+import {
+  mermaidLanguage,
+  mindmapLanguage,
+  pieLanguage,
+  flowchartLanguage,
+  sequenceLanguage,
+  journeyLanguage,
+  requirementLanguage,
+  ganttLanguage,
+} from '../language-definitions';
+
+export function mermaid() {
+  return new LanguageSupport(mermaidLanguage);
+}
+
+export function mindmap() {
+  return new LanguageSupport(mindmapLanguage);
+}
+
+export function pie() {
+  return new LanguageSupport(pieLanguage);
+}
+
+export function flowchart() {
+  return new LanguageSupport(flowchartLanguage);
+}
+
+export function sequence() {
+  return new LanguageSupport(sequenceLanguage);
+}
+
+export function journey() {
+  return new LanguageSupport(journeyLanguage);
+}
+
+export function requirement() {
+  return new LanguageSupport(requirementLanguage);
+}
+
+export function gantt() {
+  return new LanguageSupport(ganttLanguage);
+}
--- a/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.grammar
+++ b/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.grammar
@@ -0,0 +1,170 @@
+@top FlowchartDiagram { document+ }
+
+@skip { spaces | LineComment }
+
+@skip {} {
+  String {
+    singleQuote (stringContentSingle)* (singleQuote) |
+    doubleQuote (stringContentDouble)* (doubleQuote) |
+    backTick (stringContentBackTick)* (backTick)
+  }
+}
+
+document {
+  (
+    DiagramName |
+    DiagramName Orientation |
+    DiagramName Orientation newlines* subDocument (newlines* subDocument semicolon?)*
+  ) newlines*
+}
+
+
+subDocument {
+  NodeId |
+  Node |
+  Link |
+  NodeEdge |
+  ampersand |
+  Keyword |
+  emptyParentheses |
+  colon |
+  tripleColon |
+  String |
+  StyleKeyword NodeId StyleText
+}
+
+NodeId {
+  identifier | Orientation
+}
+
+text {
+  NodeText | String
+}
+
+edgeText {
+  NodeEdgeText | String
+}
+
+emptyParentheses { "()" }
+
+Node {
+  "(" text ")" |
+  "[" text "]" |
+  "|" text "|" |
+  "([" text "])" |
+  "[(" text "])" |
+  "[[" text "]]" |
+  "[(" text ")]" |
+  "((" text "))" |
+  ">" text "]" |
+  "{" text "}" |
+  "{{" text "}}" |
+  "(((" text ")))"
+}
+
+NodeEdge {
+  (DoubleHyphen | DoubleEqual) edgeText Link
+}
+
+Link {
+  linkType1 |
+  linkType2 |
+  linkType3 |
+  linkType4 |
+  linkType5 |
+  linkType6
+}
+
+DiagramName {
+  kw<"flowchart"> |
+  kw<"graph">
+}
+
+Orientation { 
+  kw<"TB"> |
+  kw<"TD"> |
+  kw<"BT"> |
+  kw<"RL"> |
+  kw<"LR">
+}
+
+StyleKeyword {
+  kw<"style"> |
+  kw<"linkStyle"> |
+  kw<"class"> |
+  kw<"classDef">
+}
+
+Keyword {
+  kw<"subgraph"> |
+  kw<"end"> |
+  kw<"direction"> |
+  kw<"click"> |
+  kw<"call"> |
+  kw<"href"> |
+  kw<"_self"> |
+  kw<"_blank"> |
+  kw<"_parent"> |
+  kw<"_to">
+}
+
+kw<term> { @specialize<identifier, term> }
+
+@external tokens nodeEdgeText from "./tokens" { NodeEdgeText }
+@external tokens nodeText from "./tokens" { NodeText }
+@external tokens styleText from "./tokens" { StyleText }
+
+/*
+Single character tokens will need to go inside the @tokens rule to specify precedence over "char".
+Longer tokens always beat shorter tokens, which is why "flowchart" takes priority over multiple "char" tokens.
+The @specialize rule also helps makes "DiagramName" have higher priority for "flowchart" even though it overlaps with "char" and "identifier" tokens
+*/
+@tokens {
+  char { @asciiLetter | @digit | $[!"\#$%&'*+\.`?\\_\/\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005\u3006\u3031-\u3035\u303B\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6E5\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC] }
+  identifier { char+ }
+  newlines { $[\n]+ }
+  spaces { @whitespace+ }
+  stringContentSingle { ![']+ }
+  stringContentDouble { !["]+ }
+  stringContentBackTick { ![`]+ }
+  LineComment { "%%" ![\n]* }
+  DoubleHyphen { "--" }
+  DoubleEqual { "==" }
+  linkType1 { ("<-" | "x-" | "o-") ("->" | "-x" | "-o")}
+  linkType2 { ("<=" | "x=" | "o=") ("=>" | "=x" | "=o")}
+  linkType3 { ("<-" | "x-" | "o-")? "-"+ ("->" | "-x" | "-o")?}
+  linkType4 { ("<=" | "x=" | "o=")? "="+ ("=>" | "=x" | "=o")?}
+  linkType5 { ("<-" | "x-" | "o-" | "-")? "."+ ("->" | "-x" | "-o" | "-")?}
+  linkType6 { "~~~" | "---" | "===" }
+  ampersand { "&" }
+  semicolon { ";" }
+  singleQuote { "'" }
+  doubleQuote { '"' }
+  backTick { "`" }
+  tripleColon[@name=":::"] { ":::" }
+  colon[@name=":"] { ":" }
+
+  @precedence {
+    newlines,
+    spaces,
+    LineComment,
+    linkType1,
+    linkType2,
+    linkType3,
+    linkType4,
+    linkType5,
+    linkType6,
+    DoubleHyphen,
+    DoubleEqual,
+    ampersand,
+    semicolon,
+    singleQuote,
+    doubleQuote,
+    backTick,
+    tripleColon,
+    colon,
+    identifier
+  }
+}
+
+@external propSource flowchartHighlighting from "./highlight"
--- a/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.grammar.terms.d.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.grammar.terms.d.ts
@@ -0,0 +1,3 @@
+export declare const NodeText: number;
+export declare const NodeEdgeText: number;
+export declare const StyleText: number;
--- a/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.grammar.terms.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.grammar.terms.ts
@@ -0,0 +1,20 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+export const
+  NodeEdgeText = 1,
+  NodeText = 2,
+  StyleText = 3,
+  LineComment = 4,
+  FlowchartDiagram = 5,
+  DiagramName = 6,
+  Orientation = 7,
+  NodeId = 8,
+  Node = 9,
+  String = 10,
+  Link = 11,
+  NodeEdge = 12,
+  DoubleHyphen = 13,
+  DoubleEqual = 14,
+  Keyword = 15,
+  colon = 16,
+  tripleColon = 17,
+  StyleKeyword = 18
--- a/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.grammar.test.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.grammar.test.ts
@@ -0,0 +1,217 @@
+import { describe, it, expect } from 'vitest';
+import { parser } from './flowchart.parser.grammar';
+
+/**
+ * Flowchart Grammar 测试
+ * 
+ * 测试目标：验证标准的 Mermaid Flowchart 语法是否能正确解析，不应该出现错误节点（⚠）
+ */
+describe('Flowchart Grammar 解析测试', () => {
+  
+  /**
+   * 辅助函数：解析代码并返回语法树
+   */
+  function parseCode(code: string) {
+    const tree = parser.parse(code);
+    return tree;
+  }
+
+  /**
+   * 辅助函数：检查语法树中是否有错误节点
+   */
+  function hasErrorNodes(tree: any): { hasError: boolean; errors: Array<{ name: string; from: number; to: number; text: string }> } {
+    const errors: Array<{ name: string; from: number; to: number; text: string }> = [];
+    
+    tree.iterate({
+      enter: (node: any) => {
+        if (node.name === '⚠') {
+          errors.push({
+            name: node.name,
+            from: node.from,
+            to: node.to,
+            text: tree.toString().substring(node.from, node.to)
+          });
+        }
+      }
+    });
+    
+    return {
+      hasError: errors.length > 0,
+      errors
+    };
+  }
+
+  /**
+   * 辅助函数：打印语法树结构（用于调试）
+   */
+  function printTree(tree: any, code: string, maxDepth = 5) {
+    const lines: string[] = [];
+    
+    tree.iterate({
+      enter: (node: any) => {
+        const depth = getNodeDepth(tree, node);
+        if (depth > maxDepth) return false; // 限制深度
+        
+        const indent = '  '.repeat(depth);
+        const text = code.substring(node.from, Math.min(node.to, node.from + 30));
+        const displayText = text.length === 30 ? text + '...' : text;
+        
+        lines.push(`${indent}${node.name} [${node.from}-${node.to}]: "${displayText.replace(/\n/g, '\\n')}"`);
+      }
+    });
+    
+    return lines.join('\n');
+  }
+
+  /**
+   * 获取节点深度
+   */
+  function getNodeDepth(tree: any, targetNode: any): number {
+    let depth = 0;
+    let current = targetNode;
+    while (current.parent) {
+      depth++;
+      current = current.parent;
+    }
+    return depth;
+  }
+
+  it('应该正确解析基础的 flowchart 声明（TB 方向）', () => {
+    const code = `flowchart TB
+    A
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析基础的 graph 声明（LR 方向）', () => {
+    const code = `graph LR
+    A
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带方框节点的流程图', () => {
+    const code = `flowchart TD
+    A[Christmas]
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带箭头连接的节点', () => {
+    const code = `flowchart TD
+    A --> B
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带标签的连接线', () => {
+    const code = `flowchart TD
+    A -- text --> B
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析不同形状的节点（圆形）', () => {
+    const code = `flowchart TD
+    A((Circle))
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析不同形状的节点（菱形）', () => {
+    const code = `flowchart TD
+    A{Diamond}
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析完整的流程图示例', () => {
+    const code = `flowchart TD
+    A[Start] --> B{Is it?}
+    B -->|Yes| C[OK]
+    B -->|No| D[End]
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+});
+
--- a/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.parser.grammar.d.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.parser.grammar.d.ts
@@ -0,0 +1,3 @@
+import { LRParser } from '@lezer/lr';
+
+export declare const parser: LRParser;
--- a/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.parser.grammar.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/flowchart/flowchart.parser.grammar.ts
--- a/frontend/src/views/editor/language/mermaid/parsers/flowchart/highlight.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/flowchart/highlight.ts
@@ -0,0 +1,22 @@
+import { styleTags, tags as t } from '@lezer/highlight';
+import { flowchartTags } from '../../tags';
+
+export const flowchartHighlighting = styleTags({
+  '( )': t.paren,
+  '[ ]': t.squareBracket,
+  '{ }': t.brace,
+  '<': t.angleBracket,
+  DiagramName: flowchartTags.diagramName,
+  DoubleEqual: flowchartTags.link,
+  DoubleHyphen: flowchartTags.link,
+  Keyword: flowchartTags.keyword,
+  LineComment: flowchartTags.lineComment,
+  Link: flowchartTags.link,
+  NodeEdge: flowchartTags.nodeEdge,
+  NodeEdgeText: flowchartTags.nodeEdgeText,
+  NodeId: flowchartTags.nodeId,
+  NodeText: flowchartTags.nodeText,
+  Number: flowchartTags.number,
+  Orientation: flowchartTags.orientation,
+  String: flowchartTags.string,
+});
--- a/frontend/src/views/editor/language/mermaid/parsers/flowchart/tokens.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/flowchart/tokens.ts
@@ -0,0 +1,55 @@
+import { ExternalTokenizer } from '@lezer/lr';
+import { NodeText, NodeEdgeText, StyleText } from  './flowchart.grammar.terms';
+
+const skipCodePoints = [-1, 9, 13, 32, 34, 39, 96];
+const startBracketCodePoints = [40, 62, 91, 123, 124];
+const endBracketCodePoints = [41, 93, 124, 125];
+const hyphen = 45;
+const equal = 61;
+const dot = 46;
+
+export const nodeText = new ExternalTokenizer((input) => {
+  if (
+    skipCodePoints.includes(input.next) ||
+    startBracketCodePoints.includes(input.next)
+  )
+    return;
+
+  while (!endBracketCodePoints.includes(input.next) && input.next !== -1) {
+    input.advance();
+  }
+
+  input.acceptToken(NodeText);
+});
+
+export const nodeEdgeText = new ExternalTokenizer((input) => {
+  if (
+    skipCodePoints.includes(input.next) ||
+    startBracketCodePoints.includes(input.next) ||
+    input.next === hyphen ||
+    input.next === equal ||
+    input.next === dot
+  )
+    return;
+
+  while (
+    input.next !== hyphen &&
+    input.next !== equal &&
+    input.next !== dot &&
+    input.next !== -1
+  ) {
+    input.advance();
+  }
+
+  input.acceptToken(NodeEdgeText);
+});
+
+export const styleText = new ExternalTokenizer((input) => {
+  if (input.next === 10 || input.next === -1) return;
+
+  while (input.next !== 10 && input.next !== -1) {
+    input.advance();
+  }
+
+  input.acceptToken(StyleText);
+});
--- a/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.grammar
+++ b/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.grammar
@@ -0,0 +1,60 @@
+@top GanttDiagram {
+  document
+}
+
+@skip { spaces }
+
+document {
+  DiagramName newlines? |
+  DiagramName newlines (subDocument newlines?)+
+}
+
+subDocument {
+  Title ImportantText |
+  Section ImportantText |
+  DateFormat Text |
+  AxisFormat Text |
+  Excludes Text |
+  TickInterval Text |
+  TodayMarker Text |
+  Weekday Text |
+  Text |
+  InclusiveEndDates |
+  LineComment
+}
+
+ImportantText {
+  text
+}
+
+Text {
+  text
+}
+
+DiagramName { kw<"gantt"> }
+
+kw<term> { @specialize<identifier, term> }
+
+@external tokens textToken from "./tokens" {
+  AxisFormat[group=Keyword],
+  DateFormat[group=Keyword],
+  Excludes[group=Keyword],
+  InclusiveEndDates[group=Keyword],
+  TickInterval[group=Keyword],
+  Title[group=Keyword],
+  TodayMarker[group=Keyword],
+  Weekday[group=Keyword],
+  Section,
+  text
+}
+
+@tokens {
+  identifier { @asciiLetter+ }
+  spaces { @whitespace+ }
+  newlines { $[\n]+ }
+  LineComment { "%%" ![\n]* }
+
+  @precedence { newlines, spaces }
+}
+
+@external propSource ganttHighlighting from "./highlight"
--- a/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.grammar.terms.d.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.grammar.terms.d.ts
@@ -0,0 +1,10 @@
+export declare const AxisFormat: number;
+export declare const DateFormat: number;
+export declare const Excludes: number;
+export declare const InclusiveEndDates: number;
+export declare const Section: number;
+export declare const TickInterval: number;
+export declare const Title: number;
+export declare const TodayMarker: number;
+export declare const Weekday: number;
+export declare const text: number;
--- a/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.grammar.terms.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.grammar.terms.ts
@@ -0,0 +1,17 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+export const
+  AxisFormat = 1,
+  DateFormat = 2,
+  Excludes = 3,
+  InclusiveEndDates = 4,
+  TickInterval = 5,
+  Title = 6,
+  TodayMarker = 7,
+  Weekday = 8,
+  Section = 9,
+  text = 17,
+  GanttDiagram = 10,
+  DiagramName = 11,
+  ImportantText = 12,
+  Text = 13,
+  LineComment = 14
--- a/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.grammar.test.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.grammar.test.ts
@@ -0,0 +1,273 @@
+import { describe, it, expect } from 'vitest';
+import { parser } from './gantt.parser.grammar';
+
+/**
+ * Gantt Diagram Grammar 测试
+ * 
+ * 测试目标：验证标准的 Mermaid Gantt Diagram 语法是否能正确解析，不应该出现错误节点（⚠）
+ */
+describe('Gantt Diagram Grammar 解析测试', () => {
+  
+  /**
+   * 辅助函数：解析代码并返回语法树
+   */
+  function parseCode(code: string) {
+    const tree = parser.parse(code);
+    return tree;
+  }
+
+  /**
+   * 辅助函数：检查语法树中是否有错误节点
+   */
+  function hasErrorNodes(tree: any): { hasError: boolean; errors: Array<{ name: string; from: number; to: number; text: string }> } {
+    const errors: Array<{ name: string; from: number; to: number; text: string }> = [];
+    
+    tree.iterate({
+      enter: (node: any) => {
+        if (node.name === '⚠') {
+          errors.push({
+            name: node.name,
+            from: node.from,
+            to: node.to,
+            text: tree.toString().substring(node.from, node.to)
+          });
+        }
+      }
+    });
+    
+    return {
+      hasError: errors.length > 0,
+      errors
+    };
+  }
+
+  /**
+   * 辅助函数：打印语法树结构（用于调试）
+   */
+  function printTree(tree: any, code: string, maxDepth = 5) {
+    const lines: string[] = [];
+    
+    tree.iterate({
+      enter: (node: any) => {
+        const depth = getNodeDepth(tree, node);
+        if (depth > maxDepth) return false; // 限制深度
+        
+        const indent = '  '.repeat(depth);
+        const text = code.substring(node.from, Math.min(node.to, node.from + 30));
+        const displayText = text.length === 30 ? text + '...' : text;
+        
+        lines.push(`${indent}${node.name} [${node.from}-${node.to}]: "${displayText.replace(/\n/g, '\\n')}"`);
+      }
+    });
+    
+    return lines.join('\n');
+  }
+
+  /**
+   * 获取节点深度
+   */
+  function getNodeDepth(tree: any, targetNode: any): number {
+    let depth = 0;
+    let current = targetNode;
+    while (current.parent) {
+      depth++;
+      current = current.parent;
+    }
+    return depth;
+  }
+
+  it('应该正确解析基础的 gantt 声明', () => {
+    const code = `gantt
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带标题的 gantt 图', () => {
+    const code = `gantt
+    title A Gantt Diagram
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带日期格式的 gantt 图', () => {
+    const code = `gantt
+    dateFormat YYYY-MM-DD
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带章节的 gantt 图', () => {
+    const code = `gantt
+    dateFormat YYYY-MM-DD
+    section Section
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带任务的 gantt 图', () => {
+    const code = `gantt
+    dateFormat YYYY-MM-DD
+    title Adding GANTT diagram functionality to mermaid
+    section A section
+    Completed task            :done,    des1, 2014-01-06,2014-01-08
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带活动任务的 gantt 图', () => {
+    const code = `gantt
+    dateFormat YYYY-MM-DD
+    section A section
+    Active task               :active,  des2, 2014-01-09, 3d
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带 axisFormat 的 gantt 图', () => {
+    const code = `gantt
+    dateFormat YYYY-MM-DD
+    axisFormat %m-%d
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带 excludes 的 gantt 图', () => {
+    const code = `gantt
+    dateFormat YYYY-MM-DD
+    excludes weekends
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带 todayMarker 的 gantt 图', () => {
+    const code = `gantt
+    dateFormat YYYY-MM-DD
+    todayMarker off
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析完整的 gantt 图示例', () => {
+    const code = `gantt
+    dateFormat  YYYY-MM-DD
+    title       Adding GANTT diagram functionality to mermaid
+    excludes    weekends
+    
+    section A section
+    Completed task            :done,    des1, 2014-01-06,2014-01-08
+    Active task               :active,  des2, 2014-01-09, 3d
+    Future task               :         des3, after des2, 5d
+    Future task2              :         des4, after des3, 5d
+
+    section Critical tasks
+    Completed task in the critical line :crit, done, 2014-01-06,24h
+    Implement parser and jison          :crit, done, after des1, 2d
+    Create tests for parser             :crit, active, 3d
+    Future task in critical line        :crit, 5d
+    Create tests for renderer           :2d
+    Add to mermaid                      :1d
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+});
+
--- a/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.parser.grammar.d.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.parser.grammar.d.ts
@@ -0,0 +1,3 @@
+import { LRParser } from '@lezer/lr';
+
+export declare const parser: LRParser;
--- a/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.parser.grammar.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/gantt/gantt.parser.grammar.ts
@@ -0,0 +1,24 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+import {LRParser} from "@lezer/lr"
+import {textToken} from "./tokens"
+import {ganttHighlighting} from "./highlight"
+const spec_identifier = {__proto__:null,gantt:44}
+export const parser = LRParser.deserialize({
+  version: 14,
+  states: "!|OVQQOOO[QQO'#CpQOQQOOOOQO'#Cg'#CgO!XQRO,59[OOQP'#Ci'#CiO!`QRO'#CtO!SQRO'#CtOOQP'#Ct'#CtO!eQRO'#CkO#`QRO1G.vOOQP'#Ch'#ChOOQP,59`,59`OOQP,59V,59VOOQP-E6i-E6i",
+  stateData: "#j~OcOS~OfRO~OgSO`dX~OPVOQVORVOSWOTVOUUOVVOWVOXUO^WOaTO~O`da~PdOaZO~Og]OP_XQ_XR_XS_XT_XU_XV_XW_XX_X^_X`_Xa_X~O`di~PdOgc~",
+  goto: "!UiPPPPPPPPPPPjmpPwPPPP}PPP!QRPOR[USWSYR[VQYSR^YRQOTXSY",
+  nodeNames: "⚠ AxisFormat DateFormat Excludes InclusiveEndDates TickInterval Title TodayMarker Weekday Section GanttDiagram DiagramName ImportantText Text LineComment",
+  maxTerm: 24,
+  nodeProps: [
+    ["group", -8,1,2,3,4,5,6,7,8,"Keyword"]
+  ],
+  propSources: [ganttHighlighting],
+  skippedNodes: [0],
+  repeatNodeCount: 1,
+  tokenData: "$l~R_XY!QYZ!uZ^!Qpq!Quv#r!c!}$a#T#o$a#y#z!Q$f$g!Q#BY#BZ!Q$IS$I_!Q$I|$JO!Q$JT$JU!Q$KV$KW!Q&FU&FV!Q~!VYc~X^!Qpq!Q#y#z!Q$f$g!Q#BY#BZ!Q$IS$I_!Q$I|$JO!Q$JT$JU!Q$KV$KW!Q&FU&FV!Q~!|[g~c~XY!QYZ!uZ^!Qpq!Q#y#z!Q$f$g!Q#BY#BZ!Q$IS$I_!Q$I|$JO!Q$JT$JU!Q$KV$KW!Q&FU&FV!Q~#uPuv#x~#}S^~OY#xZ;'S#x;'S;=`$Z<%lO#x~$^P;=`<%l#x~$fQe~!c!}$a#T#o$a",
+  tokenizers: [textToken, 0],
+  topRules: {"GanttDiagram":[0,10]},
+  specialized: [{term: 21, get: (value: keyof typeof spec_identifier) => spec_identifier[value] || -1}],
+  tokenPrec: 115
+})
--- a/frontend/src/views/editor/language/mermaid/parsers/gantt/highlight.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/gantt/highlight.ts
@@ -0,0 +1,9 @@
+import { styleTags } from '@lezer/highlight';
+import { ganttTags } from '../../tags';
+
+export const ganttHighlighting = styleTags({
+  'DiagramName Section': ganttTags.diagramName,
+  Keyword: ganttTags.keyword,
+  ImportantText: ganttTags.string,
+  LineComment: ganttTags.lineComment,
+});
--- a/frontend/src/views/editor/language/mermaid/parsers/gantt/tokens.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/gantt/tokens.ts
@@ -0,0 +1,59 @@
+import { ExternalTokenizer } from '@lezer/lr';
+import {
+  AxisFormat,
+  DateFormat,
+  Excludes,
+  InclusiveEndDates,
+  Section,
+  TickInterval,
+  Title,
+  TodayMarker,
+  Weekday,
+  text,
+} from './gantt.grammar.terms';
+
+const keywordMap: { [key: string]: number } = {
+  axisFormat: AxisFormat,
+  dateFormat: DateFormat,
+  excludes: Excludes,
+  inclusiveEndDates: InclusiveEndDates,
+  section: Section,
+  tickInterval: TickInterval,
+  title: Title,
+  todayMarker: TodayMarker,
+  weekday: Weekday,
+};
+
+const keywords = Object.keys(keywordMap);
+
+export const textToken = new ExternalTokenizer((input) => {
+  if (input.next === 32 || input.next === 10 || input.next === -1) return;
+
+  if (input.next === 37 && input.peek(1) === 37) {
+    return;
+  }
+
+  let tokens = '';
+
+  while (input.next !== 10 && input.next !== -1) {
+    tokens += String.fromCodePoint(input.next);
+    input.advance();
+  }
+
+  const activeKeyword = keywords.filter((keyword) => {
+    if (keyword === tokens) {
+      return tokens.startsWith(keyword);
+    }
+    return tokens.startsWith(keyword + ' ');
+  });
+
+  if (activeKeyword.length > 0) {
+    input.acceptToken(
+      keywordMap[activeKeyword[0]],
+      activeKeyword[0].length - tokens.length
+    );
+    return;
+  }
+
+  input.acceptToken(text);
+});
--- a/frontend/src/views/editor/language/mermaid/parsers/index.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/index.ts
@@ -0,0 +1,8 @@
+export { parser as mermaidParser } from './mermaid/mermaid.parser.grammar';
+export { parser as mindmapParser } from './mindmap/mindmap.parser.grammar';
+export { parser as pieParser } from './pie/pie.parser.grammar';
+export { parser as flowchartParser } from './flowchart/flowchart.parser.grammar';
+export { parser as sequenceParser } from './sequence/sequence.parser.grammar';
+export { parser as journeyParser } from './journey/journey.parser.grammar';
+export { parser as requirementParser } from './requirement/requirement.parser.grammar';
+export { parser as ganttParser } from './gantt/gantt.parser.grammar';
--- a/frontend/src/views/editor/language/mermaid/parsers/journey/highlight.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/journey/highlight.ts
@@ -0,0 +1,11 @@
+import { styleTags } from '@lezer/highlight';
+import { journeyTags } from '../../tags';
+
+export const journeyHighlighting = styleTags({
+  DiagramName: journeyTags.diagramName,
+  'Text TaskName': journeyTags.text,
+  Actor: journeyTags.actor,
+  Keyword: journeyTags.keyword,
+  LineComment: journeyTags.lineComment,
+  Score: journeyTags.score,
+});
--- a/frontend/src/views/editor/language/mermaid/parsers/journey/journey.grammar
+++ b/frontend/src/views/editor/language/mermaid/parsers/journey/journey.grammar
@@ -0,0 +1,59 @@
+@top JourneyDiagram {
+  document
+}
+
+@skip { spaces }
+
+document {
+  DiagramName newlines* (
+    () |
+    subDocument newlines* |
+    subDocument (newlines+ subDocument)+ newlines*
+  )
+}
+
+subDocument {
+  LineComment |
+  Keyword Text |
+  Task
+}
+
+Task {
+  TaskName ":" Score (":" Actor ("," Actor)*)?
+}
+
+Text {
+  text1
+}
+
+TaskName {
+  text2
+}
+
+Score {
+  text2
+}
+
+Actor {
+  text3
+}
+
+DiagramName { kw<"journey"> }
+
+kw<term> { @specialize<identifier, term> }
+
+@external tokens keywordTokens from "./tokens" { Keyword }
+@external tokens textTokens1 from "./tokens" { text1 }
+@external tokens textTokens2 from "./tokens" { text2 }
+@external tokens textTokens3 from "./tokens" { text3 }
+
+@tokens {
+  spaces { @whitespace+ }
+  newlines { $[\n]+ }
+  LineComment { "%%" ![\n]* }
+  identifier { @asciiLetter+ }
+
+  @precedence { newlines, spaces }
+}
+
+@external propSource journeyHighlighting from "./highlight"
--- a/frontend/src/views/editor/language/mermaid/parsers/journey/journey.grammar.terms.d.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/journey/journey.grammar.terms.d.ts
@@ -0,0 +1,5 @@
+export declare const Keyword: number;
+export declare const text1: number;
+export declare const text2: number;
+export declare const text3: number;
+
--- a/frontend/src/views/editor/language/mermaid/parsers/journey/journey.grammar.terms.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/journey/journey.grammar.terms.ts
@@ -0,0 +1,14 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+export const
+  Keyword = 1,
+  text1 = 14,
+  text2 = 15,
+  text3 = 16,
+  JourneyDiagram = 2,
+  DiagramName = 3,
+  LineComment = 4,
+  Text = 5,
+  Task = 6,
+  TaskName = 7,
+  Score = 8,
+  Actor = 9
--- a/frontend/src/views/editor/language/mermaid/parsers/journey/journey.grammar.test.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/journey/journey.grammar.test.ts
@@ -0,0 +1,234 @@
+import { describe, it, expect } from 'vitest';
+import { parser } from './journey.parser.grammar';
+
+/**
+ * Journey Diagram Grammar 测试
+ * 
+ * 测试目标：验证标准的 Mermaid Journey Diagram 语法是否能正确解析，不应该出现错误节点（⚠）
+ */
+describe('Journey Diagram Grammar 解析测试', () => {
+  
+  /**
+   * 辅助函数：解析代码并返回语法树
+   */
+  function parseCode(code: string) {
+    const tree = parser.parse(code);
+    return tree;
+  }
+
+  /**
+   * 辅助函数：检查语法树中是否有错误节点
+   */
+  function hasErrorNodes(tree: any): { hasError: boolean; errors: Array<{ name: string; from: number; to: number; text: string }> } {
+    const errors: Array<{ name: string; from: number; to: number; text: string }> = [];
+    
+    tree.iterate({
+      enter: (node: any) => {
+        if (node.name === '⚠') {
+          errors.push({
+            name: node.name,
+            from: node.from,
+            to: node.to,
+            text: tree.toString().substring(node.from, node.to)
+          });
+        }
+      }
+    });
+    
+    return {
+      hasError: errors.length > 0,
+      errors
+    };
+  }
+
+  /**
+   * 辅助函数：打印语法树结构（用于调试）
+   */
+  function printTree(tree: any, code: string, maxDepth = 5) {
+    const lines: string[] = [];
+    
+    tree.iterate({
+      enter: (node: any) => {
+        const depth = getNodeDepth(tree, node);
+        if (depth > maxDepth) return false; // 限制深度
+        
+        const indent = '  '.repeat(depth);
+        const text = code.substring(node.from, Math.min(node.to, node.from + 30));
+        const displayText = text.length === 30 ? text + '...' : text;
+        
+        lines.push(`${indent}${node.name} [${node.from}-${node.to}]: "${displayText.replace(/\n/g, '\\n')}"`);
+      }
+    });
+    
+    return lines.join('\n');
+  }
+
+  /**
+   * 获取节点深度
+   */
+  function getNodeDepth(tree: any, targetNode: any): number {
+    let depth = 0;
+    let current = targetNode;
+    while (current.parent) {
+      depth++;
+      current = current.parent;
+    }
+    return depth;
+  }
+
+  it('应该正确解析基础的 journey 声明', () => {
+    const code = `journey
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带标题的 journey 图', () => {
+    const code = `journey
+    title My working day
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带章节的 journey 图', () => {
+    const code = `journey
+    title My working day
+    section Go to work
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带任务和分数的 journey 图', () => {
+    const code = `journey
+    title My working day
+    section Go to work
+      Make tea: 5
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带任务、分数和参与者的 journey 图', () => {
+    const code = `journey
+    title My working day
+    section Go to work
+      Make tea: 5: Me
+      Go upstairs: 3: Me
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带多个参与者的任务', () => {
+    const code = `journey
+    title My working day
+    section Go to work
+      Make tea: 5: Me, Cat
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析多个章节的 journey 图', () => {
+    const code = `journey
+    title My working day
+    section Go to work
+      Make tea: 5: Me
+      Go upstairs: 3: Me
+    section Work
+      Do work: 1: Me, Cat
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析完整的 journey 图示例', () => {
+    const code = `journey
+    title My working day
+    section Go to work
+      Make tea: 5: Me
+      Go upstairs: 3: Me
+      Do work: 1: Me, Cat
+    section Go home
+      Go downstairs: 5: Me
+      Sit down: 5: Me
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+});
+
--- a/frontend/src/views/editor/language/mermaid/parsers/journey/journey.parser.grammar.d.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/journey/journey.parser.grammar.d.ts
@@ -0,0 +1,3 @@
+import { LRParser } from '@lezer/lr';
+
+export declare const parser: LRParser;
--- a/frontend/src/views/editor/language/mermaid/parsers/journey/journey.parser.grammar.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/journey/journey.parser.grammar.ts
@@ -0,0 +1,21 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+import {LRParser} from "@lezer/lr"
+import {keywordTokens, textTokens1, textTokens2, textTokens3} from "./tokens"
+import {journeyHighlighting} from "./highlight"
+const spec_identifier = {__proto__:null,journey:42}
+export const parser = LRParser.deserialize({
+  version: 14,
+  states: "%^OVQ`OOO[QeO'#CoQOQ`OOOOQT'#C_'#C_OOQT'#Cf'#CfOmQeO,59ZOOQO'#Cc'#CcO!OQ`O'#CbOOQO'#Cs'#CsO!TQbO'#CsOvQ`O,59ZOOQT-E6d-E6dO!YQ`O1G.uO!bQdO,58|OOQO'#Ca'#CaOOQO,59_,59_O!gQeO1G.uO!YQ`O1G.uO!xQeO7+$aO#RQ`O7+$aOOQO'#Cd'#CdO#ZQ`O1G.hOOQO,59S,59SOOQO-E6f-E6fO#fQeO<<G{O#wQhO7+$SP#|QeO'#CfOOQO'#Ce'#CeO$[Q`O<<GnO#wQhO'#CgO$gQ`OAN=YOOQO,59R,59ROOQO-E6e-E6e",
+  stateData: "$u~ObOS~OeRO~OPXOSWO_UOfSO]cX~OPXOSWO_UOfSO]ca~Oh]O~O^^O~OfSO]ci~O_dO~OPXOSWO_UOfSO]ci~OPXOSWO_UOfSO]cq~OhiO]UifUi~OPXOSWO_UOfSO]cy~O`kO~OPXOSWO_UOfSO~OimO]UyfUy~OimO]U!RfU!R~Ofb~",
+  goto: "#_hPPPiPlow!P!S!Y!n!tPPPPPP#OPPP#RRPOR_X]WPT`bhj]VPT`bhjRe]QliRomQTPYZT`bhjQ`YSb[aRhcQnlRpnQaYQc[TgacRQOQYPQ[TXf`bhj",
+  nodeNames: "⚠ Keyword JourneyDiagram DiagramName LineComment Text Task TaskName Score Actor",
+  maxTerm: 25,
+  propSources: [journeyHighlighting],
+  skippedNodes: [0],
+  repeatNodeCount: 3,
+  tokenData: "$|~RaXY!WYZ!{Z^!Wpq!Wuv#x|}$g![!]$l!c!}$q#T#o$q#y#z!W$f$g!W#BY#BZ!W$IS$I_!W$I|$JO!W$JT$JU!W$KV$KW!W&FU&FV!W~!]Yb~X^!Wpq!W#y#z!W$f$g!W#BY#BZ!W$IS$I_!W$I|$JO!W$JT$JU!W$KV$KW!W&FU&FV!W~#S[f~b~XY!WYZ!{Z^!Wpq!W#y#z!W$f$g!W#BY#BZ!W$IS$I_!W$I|$JO!W$JT$JU!W$KV$KW!W&FU&FV!W~#{Puv$O~$TSS~OY$OZ;'S$O;'S;=`$a<%lO$O~$dP;=`<%l$O~$lOi~~$qOh~~$vQd~!c!}$q#T#o$q",
+  tokenizers: [keywordTokens, textTokens1, textTokens2, textTokens3, 0],
+  topRules: {"JourneyDiagram":[0,2]},
+  specialized: [{term: 20, get: (value: keyof typeof spec_identifier) => spec_identifier[value] || -1}],
+  tokenPrec: 172
+})
--- a/frontend/src/views/editor/language/mermaid/parsers/journey/tokens.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/journey/tokens.ts
@@ -0,0 +1,69 @@
+import { ExternalTokenizer } from '@lezer/lr';
+import { Keyword, text1, text2, text3 } from './journey.grammar.terms';
+
+import type { InputStream } from '@lezer/lr';
+
+const skipCodePoints = [-1, 9, 10, 13, 32];
+
+const keywords = ['title', 'section'];
+
+const isComment = (input: InputStream) => {
+  return input.peek(0) === 37 && input.peek(1) === 37;
+};
+
+const shouldSkip = (input: InputStream) => {
+  return skipCodePoints.includes(input.next) || isComment(input);
+};
+
+export const keywordTokens = new ExternalTokenizer((input) => {
+  if (shouldSkip(input)) return;
+
+  let tokens = '';
+
+  while (!skipCodePoints.includes(input.next)) {
+    tokens += String.fromCodePoint(input.next);
+    input.advance();
+  }
+
+  const activeKeyword = keywords.filter((keyword) => {
+    if (keyword === tokens) {
+      return tokens.toLowerCase().startsWith(keyword);
+    }
+    return tokens.toLowerCase().startsWith(keyword + ' '); // ensure the keyword isn't used as a token unless there's a space at the end e.g. titleStuff
+  });
+
+  if (activeKeyword.length > 0) {
+    input.acceptToken(Keyword, activeKeyword[0].length - tokens.length);
+    return;
+  }
+});
+
+export const textTokens1 = new ExternalTokenizer((input) => {
+  if (shouldSkip(input)) return;
+
+  while (input.next !== 10 && input.next !== -1) {
+    input.advance();
+  }
+
+  input.acceptToken(text1);
+});
+
+export const textTokens2 = new ExternalTokenizer((input) => {
+  if (shouldSkip(input)) return;
+
+  while (input.next !== 58 && input.next !== 10 && input.next !== -1) {
+    input.advance();
+  }
+
+  input.acceptToken(text2);
+});
+
+export const textTokens3 = new ExternalTokenizer((input) => {
+  if (shouldSkip(input)) return;
+
+  while (input.next !== 44 && input.next !== 10 && input.next !== -1) {
+    input.advance();
+  }
+
+  input.acceptToken(text3);
+});
--- a/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.grammar
+++ b/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.grammar
@@ -0,0 +1,29 @@
+// See this link for entire Pie chart syntax in Mermaid: https://mermaid.js.org/syntax/pie.html#syntax
+@top MermaidDiagram {
+  preDiagramLine* (
+    PieDiagram |
+    MindmapDiagram |
+    FlowchartDiagram |
+    SequenceDiagram |
+    JourneyDiagram |
+    RequirementDiagram |
+    GanttDiagram
+  )
+}
+
+@skip { space }
+
+@tokens {
+  space { $[ \t\r]+ }
+}
+
+@external tokens diagramText from "./tokens" {
+  preDiagramLine,
+  PieDiagram,
+  MindmapDiagram,
+  FlowchartDiagram,
+  SequenceDiagram,
+  JourneyDiagram,
+  RequirementDiagram,
+  GanttDiagram
+}
--- a/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.grammar.terms.d.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.grammar.terms.d.ts
@@ -0,0 +1,8 @@
+export declare const preDiagramLine: number;
+export declare const MindmapDiagram: number;
+export declare const PieDiagram: number;
+export declare const FlowchartDiagram: number;
+export declare const SequenceDiagram: number;
+export declare const JourneyDiagram: number;
+export declare const RequirementDiagram: number;
+export declare const GanttDiagram: number;
--- a/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.grammar.terms.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.grammar.terms.ts
@@ -0,0 +1,11 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+export const
+  preDiagramLine = 11,
+  PieDiagram = 1,
+  MindmapDiagram = 2,
+  FlowchartDiagram = 3,
+  SequenceDiagram = 4,
+  JourneyDiagram = 5,
+  RequirementDiagram = 6,
+  GanttDiagram = 7,
+  MermaidDiagram = 8
--- a/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.grammar.test.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.grammar.test.ts
@@ -0,0 +1,283 @@
+import { describe, it, expect } from 'vitest';
+import { parser } from './mermaid.parser.grammar';
+
+/**
+ * Mermaid Grammar 测试
+ * 
+ * 测试目标：验证标准的 Mermaid 综合语法是否能正确解析，不应该出现错误节点（⚠）
+ * 这个测试涵盖所有类型的 Mermaid 图表
+ */
+describe('Mermaid Grammar 解析测试', () => {
+  
+  /**
+   * 辅助函数：解析代码并返回语法树
+   */
+  function parseCode(code: string) {
+    const tree = parser.parse(code);
+    return tree;
+  }
+
+  /**
+   * 辅助函数：检查语法树中是否有错误节点
+   */
+  function hasErrorNodes(tree: any): { hasError: boolean; errors: Array<{ name: string; from: number; to: number; text: string }> } {
+    const errors: Array<{ name: string; from: number; to: number; text: string }> = [];
+    
+    tree.iterate({
+      enter: (node: any) => {
+        if (node.name === '⚠') {
+          errors.push({
+            name: node.name,
+            from: node.from,
+            to: node.to,
+            text: tree.toString().substring(node.from, node.to)
+          });
+        }
+      }
+    });
+    
+    return {
+      hasError: errors.length > 0,
+      errors
+    };
+  }
+
+  /**
+   * 辅助函数：打印语法树结构（用于调试）
+   */
+  function printTree(tree: any, code: string, maxDepth = 5) {
+    const lines: string[] = [];
+    
+    tree.iterate({
+      enter: (node: any) => {
+        const depth = getNodeDepth(tree, node);
+        if (depth > maxDepth) return false; // 限制深度
+        
+        const indent = '  '.repeat(depth);
+        const text = code.substring(node.from, Math.min(node.to, node.from + 30));
+        const displayText = text.length === 30 ? text + '...' : text;
+        
+        lines.push(`${indent}${node.name} [${node.from}-${node.to}]: "${displayText.replace(/\n/g, '\\n')}"`);
+      }
+    });
+    
+    return lines.join('\n');
+  }
+
+  /**
+   * 获取节点深度
+   */
+  function getNodeDepth(tree: any, targetNode: any): number {
+    let depth = 0;
+    let current = targetNode;
+    while (current.parent) {
+      depth++;
+      current = current.parent;
+    }
+    return depth;
+  }
+
+  it('应该正确解析 Pie 图', () => {
+    const code = `pie title Pets
+    "Dogs" : 386
+    "Cats" : 85
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析 Mindmap 图', () => {
+    const code = `mindmap
+  root((mindmap))
+    Origins
+      Long history
+    Research
+      On effectiveness
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析 Flowchart 图', () => {
+    const code = `flowchart TD
+    A[Start] --> B{Is it?}
+    B -->|Yes| C[OK]
+    B -->|No| D[End]
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析 Sequence 图', () => {
+    const code = `sequenceDiagram
+    Alice->>John: Hello John
+    John-->>Alice: Great!
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析 Journey 图', () => {
+    const code = `journey
+    title My working day
+    section Go to work
+      Make tea: 5: Me
+      Go upstairs: 3: Me
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析 Requirement 图', () => {
+    const code = `requirementDiagram
+
+    requirement test_req {
+        id: 1
+        text: the test text
+        risk: high
+    }
+
+    element test_entity {
+        type: simulation
+    }
+
+    test_entity - satisfies -> test_req
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析 Gantt 图', () => {
+    const code = `gantt
+    dateFormat YYYY-MM-DD
+    title Adding GANTT diagram
+    section A section
+    Completed task :done, des1, 2014-01-06,2014-01-08
+    Active task    :active, des2, 2014-01-09, 3d
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带注释的 flowchart 图', () => {
+    const code = `%% This is a comment
+flowchart TD
+    A[Start] --> B[End]
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析带空行的 sequence 图', () => {
+    const code = `
+sequenceDiagram
+    participant Alice
+    
+    Alice->>John: Hello
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+
+  it('应该正确解析 graph 类型的流程图', () => {
+    const code = `graph LR
+    A[Square Rect] -- Link text --> B((Circle))
+    A --> C(Round Rect)
+    B --> D{Rhombus}
+    C --> D
+`;
+    
+    const tree = parseCode(code);
+    const result = hasErrorNodes(tree);
+    
+    if (result.hasError) {
+      console.log('语法树：');
+      console.log(printTree(tree, code));
+      console.log('错误节点：', result.errors);
+    }
+    
+    expect(result.hasError).toBe(false);
+  });
+});
+
--- a/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.parser.grammar.d.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.parser.grammar.d.ts
@@ -0,0 +1,3 @@
+import { LRParser } from '@lezer/lr';
+
+export declare const parser: LRParser;
--- a/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.parser.grammar.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/mermaid/mermaid.parser.grammar.ts
@@ -0,0 +1,17 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+import {LRParser} from "@lezer/lr"
+import {diagramText} from "./tokens"
+export const parser = LRParser.deserialize({
+  version: 14,
+  states: "nOVQROOOOQQ'#Ce'#CeOVQROOQOQPOOOOQQ-E6c-E6c",
+  stateData: "q~O]OS~OPROQRORROSROTROUROVROZPO~O",
+  goto: "aYPPPPPPPPPZQQORSQ",
+  nodeNames: "⚠ PieDiagram MindmapDiagram FlowchartDiagram SequenceDiagram JourneyDiagram RequirementDiagram GanttDiagram MermaidDiagram",
+  maxTerm: 13,
+  skippedNodes: [0],
+  repeatNodeCount: 1,
+  tokenData: "j~RRXY[]^[pq[~aR]~XY[]^[pq[",
+  tokenizers: [0, diagramText],
+  topRules: {"MermaidDiagram":[0,8]},
+  tokenPrec: 0
+})
--- a/frontend/src/views/editor/language/mermaid/parsers/mermaid/tokens.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/mermaid/tokens.ts
@@ -0,0 +1,52 @@
+import { ExternalTokenizer } from '@lezer/lr';
+import {
+  preDiagramLine,
+  MindmapDiagram,
+  PieDiagram,
+  FlowchartDiagram,
+  SequenceDiagram,
+  JourneyDiagram,
+  RequirementDiagram,
+  GanttDiagram,
+} from './mermaid.grammar.terms';
+
+const skipCodePoints = [-1, 9, 13, 32];
+
+const diagramMap: Record<string, number> = {
+  mindmap: MindmapDiagram,
+  pie: PieDiagram,
+  flowchart: FlowchartDiagram,
+  graph: FlowchartDiagram,
+  sequenceDiagram: SequenceDiagram,
+  journey: JourneyDiagram,
+  requirementDiagram: RequirementDiagram,
+  gantt: GanttDiagram,
+};
+
+const diagrams = Object.keys(diagramMap);
+
+export const diagramText = new ExternalTokenizer((input) => {
+  if (skipCodePoints.includes(input.next)) return;
+
+  let tokens = '';
+
+  while (input.next != 10 && input.next !== -1) {
+    tokens += String.fromCodePoint(input.next);
+    input.advance();
+  }
+
+  input.advance();
+
+  const activeDiagram = diagrams.filter((diagram) => {
+    return tokens.startsWith(diagram);
+  });
+
+  if (activeDiagram.length > 0) {
+    while (input.next !== -1) {
+      input.advance();
+    }
+    input.acceptToken(diagramMap[activeDiagram[0]]);
+  } else {
+    input.acceptToken(preDiagramLine);
+  }
+});
--- a/frontend/src/views/editor/language/mermaid/parsers/mindmap/highlight.ts
+++ b/frontend/src/views/editor/language/mermaid/parsers/mindmap/highlight.ts
@@ -0,0 +1,11 @@
+import { styleTags } from '@lezer/highlight';
+import { mindmapTags } from '../../tags';
+
+export const mindmapHighlighting = styleTags({
+  DiagramName: mindmapTags.diagramName,
+  LineText1: mindmapTags.lineText1,
+  LineText2: mindmapTags.lineText2,
+  LineText3: mindmapTags.lineText3,
+  LineText4: mindmapTags.lineText4,
+  LineText5: mindmapTags.lineText5,
+});
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
landaiqing	afda3d5301	Merge remote-tracking branch 'github/dependabot/npm_and_yarn/frontend/js-yaml-4.1.1'	2025-11-16 15:44:58 +08:00
landaiqing	5d4ba757aa	⚡ Optimize HTTP client	2025-11-16 15:41:16 +08:00
landaiqing	d12d58b15a	🐛 Fixed markdown preview issue	2025-11-16 15:22:49 +08:00
landaiqing	627c3dc71f	🐛 Fixed markdown preview issue	2025-11-16 15:16:49 +08:00
landaiqing	26c7a3241c	🐛 Fixed module path issues	2025-11-16 02:42:59 +08:00
landaiqing	46c5e3dd1a	✨ Added markdown and mermaid preview	2025-11-16 02:42:01 +08:00
dependabot[bot]	92a6c6bfdb	⬆️ Bump js-yaml from 4.1.0 to 4.1.1 in /frontend Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 4.1.0 to 4.1.1. - [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md) - [Commits](https://github.com/nodeca/js-yaml/compare/4.1.0...4.1.1) --- updated-dependencies: - dependency-name: js-yaml dependency-version: 4.1.1 dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com>	2025-11-15 18:38:56 +00:00
landaiqing	031aa49f9f	✨ Added markdown and mermaid preview	2025-11-16 02:37:30 +08:00
landaiqing	1d7aee4cea	🐛 Fixed data migration issues	2025-11-14 20:16:16 +08:00
landaiqing	dec3ef5ef4	✨ Added cursor protection extension	2025-11-13 21:00:35 +08:00
landaiqing	d42f913250	✨ Added editor cursor state persistence	2025-11-13 20:44:47 +08:00
landaiqing	bae4e663fb	⬆️ Upgrade dependencies	2025-11-13 20:02:22 +08:00
landaiqing	a17e060d16	⬆️ Upgrade dependencies	2025-11-13 19:36:11 +08:00
landaiqing	71946965eb	🐛 Fixed database constraint issues	2025-11-08 17:35:29 +08:00
landaiqing	d4cd22d234	🚀 Update build and release workflows	2025-11-08 17:17:07 +08:00
landaiqing	05f2f7d46d	🚀 Update build and release workflows	2025-11-08 17:05:31 +08:00
landaiqing	9deb2744a9	🚀 Update build and release workflows	2025-11-08 16:24:22 +08:00
landaiqing	6fac7c42d6	🚀 Update build and release workflows	2025-11-08 16:03:26 +08:00
landaiqing	3393bc84e3	🚀 Add build and release workflows	2025-11-08 15:50:30 +08:00
landaiqing	286b0159d7	🎨 Optimize update services Some checks failed Deploy VitePress site to Pages / build (push) Has been cancelled Details Deploy VitePress site to Pages / Deploy (push) Has been cancelled Details	2025-11-08 00:00:08 +08:00
landaiqing	cc98e556c6	♻️ Optimize code Some checks failed Deploy VitePress site to Pages / build (push) Has been cancelled Details Deploy VitePress site to Pages / Deploy (push) Has been cancelled Details	2025-11-07 22:34:12 +08:00
landaiqing	5902f482d9	♻️ Refactor configuration change notification service	2025-11-07 00:35:11 +08:00
landaiqing	551e7e2cfd	⚡ Optimize hotkey service	2025-11-06 22:42:44 +08:00
landaiqing	e0179b5838	🎨 Optimize hotkey service	2025-11-06 00:08:26 +08:00
landaiqing	df79267e16	⚡ Optimize multi-window services	2025-11-05 22:07:43 +08:00
landaiqing	1f0254822f	🎨 Optimize multi-window services	2025-11-05 00:10:26 +08:00
landaiqing	e9b6fef3cd	✨ Added mermaid language support	2025-11-04 22:58:36 +08:00