diff --git a/.gitignore b/.gitignore
index 042cb69..c7591ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,6 @@ start-error.log
 # 临时文件
 *.tmp
 *.log.*
+
+# WebView2 用户数据（仓库根下的缓存目录）
+EBWebView/
diff --git a/app/dsh-app.exe b/app/dsh-app.exe
index f611ab8..35c42c8 100644
Binary files a/app/dsh-app.exe and b/app/dsh-app.exe differ
diff --git a/app/src/dsh-app.cs b/app/src/dsh-app.cs
index a0af1b6..8f4b4b0 100644
--- a/app/src/dsh-app.cs
+++ b/app/src/dsh-app.cs
@@ -21,8 +21,9 @@ static class Program
     private const string RunKeyPath = @"Software\Microsoft\Windows\CurrentVersion\Run";
     private const string RunValueName = "DeepSeekHarnessService";
 
-    private const string NodeExe = @"C:\Program Files\nodejs\node.exe";
-    private const string NpmCli = @"C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js";
+    // 标准安装路径（联网安装的 Node 默认位置）；离线包使用应用旁的 runtime 目录
+    private const string StdNodeExe = @"C:\Program Files\nodejs\node.exe";
+    private const string StdNpmCli = @"C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js";
 
     private static Process serviceProcess;   // 本应用拉起的 dsh 服务进程
     private static bool startedByUs;         // 服务是否由本应用启动
@@ -175,6 +176,9 @@ static class Program
         // 后台检查 DSH 版本更新（有新版才提示，不阻塞启动）
         CheckUpdateAsync();
 
+        // 刷新开机自启启动器（路径随当前环境，跨设备可用）
+        try { WriteServiceVbs(Path.Combine(AppDir(), "start-dsh-service.vbs")); } catch { }
+
         Application.Run(mainForm);
     }
 
@@ -183,6 +187,62 @@ static class Program
         return Path.GetDirectoryName(Application.ExecutablePath);
     }
 
+    // 应用根目录（AppDir 的上一级，离线包布局 <root>/app、<root>/runtime）
+    static string AppRoot()
+    {
+        string d = AppDir();
+        return d != null ? Path.GetDirectoryName(d) : null;
+    }
+
+    // ---- 运行时查找（标准安装 或 离线包 runtime 目录）----
+
+    static string FindNodeExe()
+    {
+        if (File.Exists(StdNodeExe)) return StdNodeExe;
+        string root = AppRoot();
+        if (root != null)
+        {
+            string local = Path.Combine(root, "runtime", "node", "node.exe");
+            if (File.Exists(local)) return local;
+        }
+        return null;
+    }
+
+    static string GetNodeDir()
+    {
+        string exe = FindNodeExe();
+        return exe != null ? Path.GetDirectoryName(exe) : null;
+    }
+
+    static string FindNpmCli()
+    {
+        string nodeDir = GetNodeDir();
+        if (nodeDir != null)
+        {
+            string cli = Path.Combine(nodeDir, "node_modules", "npm", "bin", "npm-cli.js");
+            if (File.Exists(cli)) return cli;
+        }
+        if (File.Exists(StdNpmCli)) return StdNpmCli;
+        return null;
+    }
+
+    static string FindDshBinJs()
+    {
+        // 1) npm 全局（联网安装 / 离线复制到 APPDATA 的情况）
+        string npmDir = Path.Combine(
+            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "npm");
+        string p1 = Path.Combine(npmDir, "node_modules", "@deepseek-ai", "dsh", "lib", "bin.js");
+        if (File.Exists(p1)) return p1;
+        // 2) 离线包布局 <root>/runtime/dsh/node_modules
+        string root = AppRoot();
+        if (root != null)
+        {
+            string p2 = Path.Combine(root, "runtime", "dsh", "node_modules", "@deepseek-ai", "dsh", "lib", "bin.js");
+            if (File.Exists(p2)) return p2;
+        }
+        return null;
+    }
+
     static bool IsPortOpen(int port)
     {
         try
@@ -201,14 +261,18 @@ static class Program
     {
         string appDir = AppDir();
         string logFile = Path.Combine(appDir, "web.log");
-        string npmDir = Path.Combine(
-            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "npm");
-        string binJs = Path.Combine(npmDir, "node_modules", "@deepseek-ai", "dsh", "lib", "bin.js");
+        string nodeExe = FindNodeExe();
+        string binJs = FindDshBinJs();
         try
         {
-            if (!File.Exists(NodeExe) || !File.Exists(binJs)) return;
+            if (nodeExe == null || binJs == null)
+            {
+                try { File.WriteAllText(Path.Combine(AppDir(), "start-error.log"),
+                    "Node 或 dsh 未找到。nodeExe=" + (nodeExe ?? "null") + " binJs=" + (binJs ?? "null")); } catch { }
+                return;
+            }
 
-            var psi = new ProcessStartInfo(NodeExe)
+            var psi = new ProcessStartInfo(nodeExe)
             {
                 UseShellExecute = false,
                 CreateNoWindow = true,
@@ -220,10 +284,10 @@ static class Program
 
             // 确保 node 与 npm 命令可用（dsh 插件可能用到）
             string path = psi.EnvironmentVariables["PATH"] ?? "";
-            if (path.IndexOf("nodejs", StringComparison.OrdinalIgnoreCase) < 0)
-                path = @"C:\Program Files\nodejs;" + path;
-            if (path.IndexOf("npm", StringComparison.OrdinalIgnoreCase) < 0)
-                path = npmDir + ";" + path;
+            string nodeDir = Path.GetDirectoryName(nodeExe);
+            if (nodeDir != null && path.IndexOf("nodejs", StringComparison.OrdinalIgnoreCase) < 0
+                && path.IndexOf(nodeDir, StringComparison.OrdinalIgnoreCase) < 0)
+                path = nodeDir + ";" + path;
             psi.EnvironmentVariables["PATH"] = path;
 
             // 禁用 dsh 启动遥测（可能小幅加速冷启动）
@@ -310,6 +374,7 @@ static class Program
                 if (enable)
                 {
                     string vbs = Path.Combine(AppDir(), "start-dsh-service.vbs");
+                    WriteServiceVbs(vbs);
                     key.SetValue(RunValueName, "wscript.exe \"" + vbs + "\"");
                 }
                 else
@@ -321,6 +386,25 @@ static class Program
         catch { }
     }
 
+    // 按当前环境动态生成隐藏启动器 vbs（路径随用户/安装位置变化）
+    static void WriteServiceVbs(string path)
+    {
+        try
+        {
+            string nodeExe = FindNodeExe();
+            string binJs = FindDshBinJs();
+            if (nodeExe == null || binJs == null) return;
+            string logFile = Path.Combine(AppDir(), "web.log");
+            // cmd /c ""node" "bin.js" web > "log" 2>&1"  （CreateProcess 剥一层引号后 cmd 仍收到带引号命令）
+            string inner = "cmd /c \"\"" + nodeExe + "\" \"" + binJs + "\" web > \"" + logFile + "\" 2>&1\"";
+            string vbs = "' Start dsh service (hidden, auto-generated)\r\n" +
+                         "Set ws = CreateObject(\"WScript.Shell\")\r\n" +
+                         "ws.Run \"" + inner.Replace("\"", "\"\"") + "\", 0, False\r\n";
+            File.WriteAllText(path, vbs);
+        }
+        catch { }
+    }
+
     // ---- DSH 版本检查与升级引导（应用内完成，无需浏览器/终端）----
 
     static void CheckUpdateAsync()
@@ -369,14 +453,18 @@ static class Program
     {
         try
         {
-            string pkg = Path.Combine(
-                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
-                "npm", "node_modules", "@deepseek-ai", "dsh", "package.json");
-            if (File.Exists(pkg))
+            string binJs = FindDshBinJs();
+            if (binJs != null)
             {
-                var doc = new System.Text.RegularExpressions.Regex("\"version\"\\s*:\\s*\"([^\"]+)\"");
-                var m = doc.Match(File.ReadAllText(pkg));
-                if (m.Success) return m.Groups[1].Value;
+                string pkg = Path.Combine(
+                    Path.GetDirectoryName(Path.GetDirectoryName(Path.GetDirectoryName(binJs))),
+                    "package.json");
+                if (File.Exists(pkg))
+                {
+                    var doc = new System.Text.RegularExpressions.Regex("\"version\"\\s*:\\s*\"([^\"]+)\"");
+                    var m = doc.Match(File.ReadAllText(pkg));
+                    if (m.Success) return m.Groups[1].Value;
+                }
             }
         }
         catch { }
@@ -387,14 +475,17 @@ static class Program
     {
         try
         {
+            string nodeExe = FindNodeExe();
+            string cli = FindNpmCli();
+            if (nodeExe == null || cli == null) return "";
             string stdout = "";
-            var psi = new ProcessStartInfo(NodeExe)
+            var psi = new ProcessStartInfo(nodeExe)
             {
                 UseShellExecute = false,
                 CreateNoWindow = true,
                 RedirectStandardOutput = true,
                 RedirectStandardError = true,
-                Arguments = "\"" + NpmCli + "\" view @deepseek-ai/dsh version",
+                Arguments = "\"" + cli + "\" view @deepseek-ai/dsh version",
             };
             using (var p = Process.Start(psi))
             {
@@ -413,14 +504,17 @@ static class Program
         string logFile = Path.Combine(AppDir(), "upgrade.log");
         try
         {
-            var psi = new ProcessStartInfo(NodeExe)
+            string nodeExe = FindNodeExe();
+            string cli = FindNpmCli();
+            if (nodeExe == null || cli == null) return false;
+            var psi = new ProcessStartInfo(nodeExe)
             {
                 UseShellExecute = false,
                 CreateNoWindow = true,
                 WindowStyle = ProcessWindowStyle.Hidden,
                 RedirectStandardOutput = true,
                 RedirectStandardError = true,
-                Arguments = "\"" + NpmCli + "\" install -g @deepseek-ai/dsh@latest",
+                Arguments = "\"" + cli + "\" install -g @deepseek-ai/dsh@latest",
             };
             using (var p = Process.Start(psi))
             {
diff --git a/app/start-dsh-service.vbs b/app/start-dsh-service.vbs
index d765672..db8847b 100644
--- a/app/start-dsh-service.vbs
+++ b/app/start-dsh-service.vbs
@@ -1,4 +1,3 @@
-' Start dsh (DeepSeek Harness) service in background, no window.
-' Used by "autostart" tray option (registry Run entry via wscript).
+' Start dsh service (hidden, auto-generated)
 Set ws = CreateObject("WScript.Shell")
 ws.Run "cmd /c """"C:\Program Files\nodejs\node.exe"" ""C:\Users\VanuSystems-Mu\AppData\Roaming\npm\node_modules\@deepseek-ai\dsh\lib\bin.js"" web > ""C:\Users\VanuSystems-Mu\AppData\Local\DeepSeekHarness\app\web.log"" 2>&1""", 0, False