diff --git a/src-tauri/src/server.rs b/src-tauri/src/server.rs
index 5ecfad3..c4d8614 100644
--- a/src-tauri/src/server.rs
+++ b/src-tauri/src/server.rs
@@ -546,57 +546,84 @@ async fn sse_handler() -> Sse<impl Stream<Item = Result<Event, Infallible>>> {
 }
 
 // ===================== NPC 内网穿透客户端 =====================
+/// 多平台兼容：
+///   - Windows: 二进制名为 npc.exe
+///   - macOS/Linux: 二进制名为 npc
+///   每次启动检查持久化目录（与 data.json 同一目录下的 npc/）中是否存在，
+///   不存在则从嵌入式 npc.zip 解压。
 pub fn setup_npc() {
-    let zip_data = match Asset::get("npc.zip") {
-        Some(data) => data,
-        None => {
-            eprintln!("[dpm] 警告: npc.zip 未嵌入到程序中，跳过");
-            return;
-        }
-    };
-
-    let data_dir = dirs::home_dir()
+    let data_dir = dirs::data_dir()
         .unwrap_or_else(|| PathBuf::from("."))
-        .join(".dpm")
+        .join("dpm")
         .join("npc");
     if let Err(e) = fs::create_dir_all(&data_dir) {
         eprintln!("[dpm] 无法创建 npc 目录 ({}): {}", data_dir.display(), e);
         return;
     }
 
-    let exe_path = data_dir.join("npc.exe");
-
-    // 解压 npc.exe
-    let cursor = Cursor::new(zip_data.data);
-    let mut archive = match zip::ZipArchive::new(cursor) {
-        Ok(a) => a,
-        Err(e) => {
-            eprintln!("[dpm] npc.zip 解压失败: {}", e);
-            return;
-        }
+    // 根据平台确定二进制文件名
+    let exe_name = if cfg!(target_os = "windows") {
+        "npc.exe"
+    } else {
+        "npc"
     };
+    let exe_path = data_dir.join(exe_name);
 
-    let mut extracted = false;
-    for i in 0..archive.len() {
-        let mut file = match archive.by_index(i) {
-            Ok(f) => f,
-            Err(_) => continue,
-        };
-        if file.name() == "npc.exe" {
-            if let Err(e) = fs::File::create(&exe_path)
-                .and_then(|mut out| std::io::copy(&mut file, &mut out).map(|_| ()))
-            {
-                eprintln!("[dpm] npc.exe 写入失败: {}", e);
+    // 检查文件是否已存在，不存在则从嵌入式 zip 解压
+    if !exe_path.exists() {
+        let zip_data = match Asset::get("npc.zip") {
+            Some(data) => data,
+            None => {
+                eprintln!("[dpm] 警告: npc.zip 未嵌入到程序中，跳过");
                 return;
             }
-            extracted = true;
-            break;
-        }
-    }
+        };
 
-    if !extracted {
-        eprintln!("[dpm] npc.zip 中未找到 npc.exe");
-        return;
+        let cursor = Cursor::new(zip_data.data);
+        let mut archive = match zip::ZipArchive::new(cursor) {
+            Ok(a) => a,
+            Err(e) => {
+                eprintln!("[dpm] npc.zip 解压失败: {}", e);
+                return;
+            }
+        };
+
+        let mut extracted = false;
+        for i in 0..archive.len() {
+            let mut file = match archive.by_index(i) {
+                Ok(f) => f,
+                Err(_) => continue,
+            };
+            // 兼容 zip 中二进制名为 npc.exe 或 npc 的情况
+            let name = file.name().trim_end_matches('/');
+            let is_match = name == "npc.exe" || name == "npc" || name == exe_name;
+            if is_match {
+                if let Err(e) = fs::File::create(&exe_path)
+                    .and_then(|mut out| std::io::copy(&mut file, &mut out).map(|_| ()))
+                {
+                    eprintln!("[dpm] {} 写入失败: {}", exe_name, e);
+                    return;
+                }
+                extracted = true;
+                break;
+            }
+        }
+
+        if !extracted {
+            eprintln!("[dpm] npc.zip 中未找到 npc/npc.exe");
+            return;
+        }
+
+        // Unix 平台设置可执行权限
+        #[cfg(not(target_os = "windows"))]
+        {
+            use std::os::unix::fs::PermissionsExt;
+            if let Err(e) = fs::set_permissions(&exe_path, fs::Permissions::from_mode(0o755)) {
+                eprintln!("[dpm] 设置执行权限失败: {}", e);
+            }
+        }
+
+        println!("[dpm] npc 客户端已解压到 {}", exe_path.display());
     }
 
     println!("[dpm] 启动 npc 客户端...");