diff --git a/.gitea/workflows/build-windows-release.yml b/.gitea/workflows/build-windows-release.yml
index cf72549..25bd998 100644
--- a/.gitea/workflows/build-windows-release.yml
+++ b/.gitea/workflows/build-windows-release.yml
@@ -19,52 +19,84 @@ jobs:
 
     env:
       BUILD_TYPE: Release
-      QT_VERSION: '6.7.3'
-      QT_ARCH: win64_msvc2019_64
-      QT_DIR_NAME: msvc2019_64
-      DIST_DIR: dist-windows\chengnan
+      MSYS2_ROOT: C:\msys64
+      MSYSTEM: UCRT64
+      CHERE_INVOKING: 1
       PACKAGE_BASENAME: chengnan-windows-x64
+      PACKAGE_NAME: chengnan-windows-x64
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup MSVC developer command prompt
-        uses: ilammy/msvc-dev-cmd@v1
-        with:
-          arch: x64
-
-      - name: Setup Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.x'
-
-      - name: Install Qt
+      - name: Prepare source
         shell: powershell
         run: |
           $ErrorActionPreference = 'Stop'
-          python -m pip install --upgrade pip
-          python -m pip install aqtinstall
-          python -m aqt install-qt windows desktop $env:QT_VERSION $env:QT_ARCH --outputdir C:\Qt --modules qtimageformats
-          $qtPrefix = "C:\Qt\$env:QT_VERSION\$env:QT_DIR_NAME"
-          $windeployqt = Join-Path $qtPrefix 'bin\windeployqt.exe'
-          if (-not (Test-Path $windeployqt)) {
-            throw "Qt 安装不完整，找不到 windeployqt：$windeployqt"
-          }
-          "QT_PREFIX=$qtPrefix" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
+          $work = Join-Path $env:RUNNER_TEMP 'chengnan-src'
+          $zip = Join-Path $env:RUNNER_TEMP 'chengnan-src.zip'
+          if (Test-Path $work) { Remove-Item -Recurse -Force $work }
+          if (Test-Path $zip) { Remove-Item -Force $zip }
+          New-Item -ItemType Directory -Force -Path $work | Out-Null
 
-      - name: Build and deploy Qt runtime
+          $serverUrl = if ($env:GITHUB_SERVER_URL) { $env:GITHUB_SERVER_URL.TrimEnd('/') } else { 'https://git.luochen570.cn' }
+          $archiveUrl = "$serverUrl/$env:GITHUB_REPOSITORY/archive/$env:GITHUB_SHA.zip"
+          Write-Host "Downloading source archive from $archiveUrl"
+          Invoke-WebRequest -Uri $archiveUrl -OutFile $zip
+          Expand-Archive -Path $zip -DestinationPath $work -Force
+
+          $src = Get-ChildItem -Path $work -Directory | Select-Object -First 1
+          if (-not $src) { throw '源码压缩包解压后没有目录' }
+          "SOURCE_DIR=$($src.FullName)" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
+          Write-Host "Source dir: $($src.FullName)"
+
+      - name: Install MSYS2 and build dependencies
         shell: powershell
         run: |
           $ErrorActionPreference = 'Stop'
-          powershell -ExecutionPolicy Bypass -File .\build-windows.ps1 -QtPrefix "$env:QT_PREFIX" -Config $env:BUILD_TYPE
-          if (-not (Test-Path $env:DIST_DIR)) {
-            throw "发布目录不存在：$env:DIST_DIR"
-          }
-          if (-not (Test-Path "$env:DIST_DIR\chengnan.exe")) {
-            throw "构建产物不存在：$env:DIST_DIR\chengnan.exe"
+          $msysRoot = $env:MSYS2_ROOT
+          if (-not (Test-Path "$msysRoot\usr\bin\bash.exe")) {
+            $installer = Join-Path $env:RUNNER_TEMP 'msys2-installer.exe'
+            $installerUrl = 'https://github.com/msys2/msys2-installer/releases/latest/download/msys2-x86_64-latest.exe'
+            Write-Host "Downloading MSYS2 installer from $installerUrl"
+            Invoke-WebRequest -Uri $installerUrl -OutFile $installer
+            & $installer in --confirm-command --accept-messages --root $msysRoot
           }
 
+          $bash = "$msysRoot\usr\bin\bash.exe"
+          & $bash -lc "pacman --noconfirm -Syuu" || $true
+          & $bash -lc "pacman --noconfirm -Syuu"
+          & $bash -lc "pacman --noconfirm -S --needed git zip unzip p7zip mingw-w64-ucrt-x86_64-toolchain mingw-w64-ucrt-x86_64-cmake mingw-w64-ucrt-x86_64-ninja mingw-w64-ucrt-x86_64-qt6-base mingw-w64-ucrt-x86_64-qt6-imageformats"
+
+      - name: Configure and build
+        shell: powershell
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $bash = "$env:MSYS2_ROOT\usr\bin\bash.exe"
+          $src = $env:SOURCE_DIR -replace '\\','/'
+          $src = $src -replace '^([A-Za-z]):','/$1'
+          $src = $src.ToLower()
+          $script = @"
+          set -euo pipefail
+          cd '$src'
+          export PATH=/ucrt64/bin:/usr/bin:`$PATH
+          cmake -S . -B build-windows -G Ninja -DCMAKE_BUILD_TYPE=Release
+          cmake --build build-windows --parallel `$(nproc)
+          rm -rf dist-windows
+          mkdir -p dist-windows/chengnan
+          cp build-windows/chengnan.exe dist-windows/chengnan/
+          /ucrt64/bin/windeployqt6.exe --release --no-translations dist-windows/chengnan/chengnan.exe || /ucrt64/bin/windeployqt.exe --release --no-translations dist-windows/chengnan/chengnan.exe
+          cat > dist-windows/chengnan/README.txt <<'EOF'
+          chengnan Windows x64 发布包
+
+          运行方式：
+          1. 解压整个目录。
+          2. 双击 chengnan.exe 运行。
+
+          说明：
+          - 本目录由 Windows Runner 使用 MSYS2 UCRT64 + Qt 构建生成。
+          - 请不要只复制 chengnan.exe，需保留同目录 DLL 和 Qt 插件目录。
+          EOF
+          "@
+          & $bash -lc $script
+
       - name: Package
         shell: powershell
         run: |
@@ -72,53 +104,28 @@ jobs:
           $shortSha = $env:GITHUB_SHA.Substring(0, 10)
           $version = if ($env:GITHUB_REF_TYPE -eq 'tag') { $env:GITHUB_REF_NAME } else { "build-$shortSha" }
           $zipName = "$env:PACKAGE_BASENAME-$version.zip"
-
-          @"
-          chengnan Windows x64 发布包
-
-          运行方式：
-          1. 解压整个目录。
-          2. 双击 chengnan.exe 运行。
-
-          说明：
-          - 本目录由 Windows Runner 使用 MSVC + Qt 构建生成。
-          - 请不要只复制 chengnan.exe，需保留同目录 DLL 和 Qt 插件目录。
-          "@ | Out-File -FilePath "$env:DIST_DIR\README.txt" -Encoding utf8
-
-          if (Test-Path $zipName) {
-            Remove-Item -Force $zipName
-          }
-          Compress-Archive -Path "$env:DIST_DIR\*" -DestinationPath $zipName -Force
-          $hash = (Get-FileHash $zipName -Algorithm SHA256).Hash.ToLowerInvariant()
-          "$hash  $zipName" | Out-File -FilePath "$zipName.sha256" -Encoding ascii
-          "PACKAGE_ZIP=$zipName" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
+          $dist = Join-Path $env:SOURCE_DIR 'dist-windows\chengnan'
+          if (-not (Test-Path "$dist\chengnan.exe")) { throw "缺少构建产物：$dist\chengnan.exe" }
+          Push-Location (Split-Path $dist -Parent)
+          if (Test-Path (Join-Path $env:SOURCE_DIR $zipName)) { Remove-Item -Force (Join-Path $env:SOURCE_DIR $zipName) }
+          Compress-Archive -Path 'chengnan\*' -DestinationPath (Join-Path $env:SOURCE_DIR $zipName) -Force
+          Pop-Location
+          $zipPath = Join-Path $env:SOURCE_DIR $zipName
+          $hash = (Get-FileHash $zipPath -Algorithm SHA256).Hash.ToLowerInvariant()
+          "$hash  $zipName" | Out-File -FilePath "$zipPath.sha256" -Encoding ascii
+          "PACKAGE_ZIP=$zipPath" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
+          "PACKAGE_SHA256=$zipPath.sha256" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
           "RELEASE_TAG=$version" | Out-File -FilePath $env:GITHUB_ENV -Append -Encoding utf8
-          Write-Host "Package: $zipName"
+          Write-Host "Package: $zipPath"
           Write-Host "SHA256: $hash"
 
       - name: Verify package
         shell: powershell
         run: |
           $ErrorActionPreference = 'Stop'
-          if (-not (Test-Path $env:PACKAGE_ZIP)) {
-            throw "zip 不存在：$env:PACKAGE_ZIP"
-          }
-          if (-not (Test-Path "$env:PACKAGE_ZIP.sha256")) {
-            throw "sha256 不存在：$env:PACKAGE_ZIP.sha256"
-          }
-          $items = Get-ChildItem -Path $env:PACKAGE_ZIP | Select-Object -ExpandProperty FullName
-          if (-not $items) {
-            throw "zip 文件为空或不可读：$env:PACKAGE_ZIP"
-          }
-
-      - name: Upload build artifact
-        uses: actions/upload-artifact@v3
-        with:
-          name: chengnan-windows-x64
-          path: |
-            ${{ env.PACKAGE_ZIP }}
-            ${{ env.PACKAGE_ZIP }}.sha256
-          if-no-files-found: error
+          if (-not (Test-Path $env:PACKAGE_ZIP)) { throw "zip 不存在：$env:PACKAGE_ZIP" }
+          if (-not (Test-Path $env:PACKAGE_SHA256)) { throw "sha256 不存在：$env:PACKAGE_SHA256" }
+          if ((Get-Item $env:PACKAGE_ZIP).Length -le 0) { throw "zip 文件为空：$env:PACKAGE_ZIP" }
 
       - name: Upload package to repository release
         shell: powershell
@@ -127,12 +134,8 @@ jobs:
         run: |
           $ErrorActionPreference = 'Stop'
           $token = $env:RELEASE_TOKEN
-          if ([string]::IsNullOrWhiteSpace($token)) {
-            $token = $env:GITHUB_TOKEN
-          }
-          if ([string]::IsNullOrWhiteSpace($token)) {
-            throw '缺少发布 Token：请在仓库 Secrets 中配置 RELEASE_TOKEN，或确保 Gitea Actions 提供 GITHUB_TOKEN。'
-          }
+          if ([string]::IsNullOrWhiteSpace($token)) { $token = $env:GITHUB_TOKEN }
+          if ([string]::IsNullOrWhiteSpace($token)) { throw '缺少发布 Token：请在仓库 Secrets 中配置 RELEASE_TOKEN，或确保 Gitea Actions 提供 GITHUB_TOKEN。' }
 
           $serverUrl = if ($env:GITHUB_SERVER_URL) { $env:GITHUB_SERVER_URL.TrimEnd('/') } else { 'https://git.luochen570.cn' }
           $repo = $env:GITHUB_REPOSITORY
@@ -171,7 +174,8 @@ jobs:
             Remove-ExistingAsset $name
             $uploadUrl = "$apiBase/releases/$($release.id)/assets?name=$([uri]::EscapeDataString($name))"
             $responseFile = Join-Path $env:RUNNER_TEMP "gitea-upload-response.json"
-            $status = & curl.exe --silent --show-error --location `
+            $curl = Join-Path $env:SystemRoot 'System32\curl.exe'
+            $status = & $curl --silent --show-error --location `
               --header "Authorization: token $token" `
               --form "attachment=@$path;filename=$name" `
               --write-out '%{http_code}' `
@@ -186,5 +190,5 @@ jobs:
           }
 
           Upload-Asset $env:PACKAGE_ZIP
-          Upload-Asset "$env:PACKAGE_ZIP.sha256"
+          Upload-Asset $env:PACKAGE_SHA256
           Write-Host "Release assets uploaded to $serverUrl/$repo/releases/tag/$tagName"