diff --git a/src-tauri/src/commands/lightweight.rs b/src-tauri/src/commands/lightweight.rs
new file mode 100644
index 000000000..2380b35e5
--- /dev/null
+++ b/src-tauri/src/commands/lightweight.rs
@@ -0,0 +1,14 @@
+#[tauri::command]
+pub fn enter_lightweight_mode(app: tauri::AppHandle) -> Result<(), String> {
+    crate::lightweight::enter_lightweight_mode(&app)
+}
+
+#[tauri::command]
+pub fn exit_lightweight_mode(app: tauri::AppHandle) -> Result<(), String> {
+    crate::lightweight::exit_lightweight_mode(&app)
+}
+
+#[tauri::command]
+pub fn is_lightweight_mode() -> bool {
+    crate::lightweight::is_lightweight_mode()
+}
diff --git a/src-tauri/src/commands/mod.rs b/src-tauri/src/commands/mod.rs
index 9eb7c659b..09bb312b3 100644
--- a/src-tauri/src/commands/mod.rs
+++ b/src-tauri/src/commands/mod.rs
@@ -25,6 +25,7 @@ mod sync_support;
 mod usage;
 mod webdav_sync;
 mod workspace;
+mod lightweight;
 
 pub use auth::*;
 pub use config::*;
@@ -50,3 +51,4 @@ pub use stream_check::*;
 pub use usage::*;
 pub use webdav_sync::*;
 pub use workspace::*;
+pub use lightweight::*;
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index ef464d687..05463cee5 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -12,6 +12,7 @@ mod error;
 mod gemini_config;
 mod gemini_mcp;
 mod init_status;
+mod lightweight;
 mod mcp;
 mod openclaw_config;
 mod opencode_config;
@@ -204,6 +205,12 @@ pub fn run() {
                 log::debug!("  arg[{i}]: {}", redact_url_for_log(arg));
             }
 
+            if crate::lightweight::is_lightweight_mode() {
+                if let Err(e) = crate::lightweight::exit_lightweight_mode(app) {
+                    log::error!("退出轻量模式重建窗口失败: {e}");
+                }
+            }
+
             // Check for deep link URL in args (mainly for Windows/Linux command line)
             let mut found_deeplink = false;
             for arg in &args {
@@ -615,6 +622,12 @@ pub fn run() {
                     let urls = event.urls();
                     log::info!("Received {} URL(s)", urls.len());
 
+                    if crate::lightweight::is_lightweight_mode() {
+                        if let Err(e) = crate::lightweight::exit_lightweight_mode(&app_handle) {
+                            log::error!("退出轻量模式重建窗口失败: {e}");
+                        }
+                    }
+
                     for (i, url) in urls.iter().enumerate() {
                         let url_str = url.as_str();
                         log::debug!("  URL[{i}]: {}", redact_url_for_log(url_str));
@@ -1085,6 +1098,10 @@ pub fn run() {
             commands::delete_daily_memory_file,
             commands::search_daily_memory_files,
             commands::open_workspace_directory,
+            // lightweight mode (for testing or low-resource environments)
+            commands::enter_lightweight_mode,
+            commands::exit_lightweight_mode,
+            commands::is_lightweight_mode,
         ]);
 
     let app = builder
@@ -1135,6 +1152,10 @@ pub fn run() {
                         let _ = window.show();
                         let _ = window.set_focus();
                         tray::apply_tray_policy(app_handle, true);
+                    } else if crate::lightweight::is_lightweight_mode() {
+                        if let Err(e) = crate::lightweight::exit_lightweight_mode(app_handle) {
+                            log::error!("退出轻量模式重建窗口失败: {e}");
+                        }
                     }
                 }
                 // 处理通过自定义 URL 协议触发的打开事件（例如 ccswitch://...）
@@ -1144,6 +1165,13 @@ pub fn run() {
                         log::info!("RunEvent::Opened with URL: {url_str}");
 
                         if url_str.starts_with("ccswitch://") {
+                            if crate::lightweight::is_lightweight_mode() {
+                                if let Err(e) = crate::lightweight::exit_lightweight_mode(app_handle)
+                                {
+                                    log::error!("退出轻量模式重建窗口失败: {e}");
+                                }
+                            }
+
                             // 解析并广播深链接事件，复用与 single_instance 相同的逻辑
                             match crate::deeplink::parse_deeplink_url(&url_str) {
                                 Ok(request) => {
diff --git a/src-tauri/src/lightweight.rs b/src-tauri/src/lightweight.rs
new file mode 100644
index 000000000..cd0875710
--- /dev/null
+++ b/src-tauri/src/lightweight.rs
@@ -0,0 +1,90 @@
+use std::sync::atomic::{AtomicBool, Ordering};
+
+use tauri::Manager;
+
+static LIGHTWEIGHT_MODE: AtomicBool = AtomicBool::new(false);
+
+pub fn enter_lightweight_mode(app: &tauri::AppHandle) -> Result<(), String> {
+    #[cfg(target_os = "windows")]
+    {
+        if let Some(window) = app.get_webview_window("main") {
+            let _ = window.set_skip_taskbar(true);
+        }
+    }
+    #[cfg(target_os = "macos")]
+    {
+        crate::tray::apply_tray_policy(app, false);
+    }
+
+    if let Some(window) = app.get_webview_window("main") {
+        window
+            .destroy()
+            .map_err(|e| format!("销毁主窗口失败: {e}"))?;
+    }
+    // else: already in lightweight mode or window not found, just set the flag
+
+    LIGHTWEIGHT_MODE.store(true, Ordering::Release);
+    crate::tray::refresh_tray_menu(app);
+    log::info!("进入轻量模式");
+    Ok(())
+}
+
+pub fn exit_lightweight_mode(app: &tauri::AppHandle) -> Result<(), String> {
+    use tauri::WebviewWindowBuilder;
+
+    if let Some(window) = app.get_webview_window("main") {
+        let _ = window.unminimize();
+        let _ = window.show();
+        let _ = window.set_focus();
+        #[cfg(target_os = "windows")]
+        {
+            let _ = window.set_skip_taskbar(false);
+        }
+        #[cfg(target_os = "macos")]
+        {
+            crate::tray::apply_tray_policy(app, true);
+        }
+        LIGHTWEIGHT_MODE.store(false, Ordering::Release);
+        crate::tray::refresh_tray_menu(app);
+        log::info!("退出轻量模式");
+        return Ok(());
+    }
+
+    let window_config = app
+        .config()
+        .app
+        .windows
+        .iter()
+        .find(|w| w.label == "main")
+        .ok_or("主窗口配置未找到")?;
+
+    WebviewWindowBuilder::from_config(app, window_config)
+        .map_err(|e| format!("加载主窗口配置失败: {e}"))?
+        .visible(true)
+        .build()
+        .map_err(|e| format!("创建主窗口失败: {e}"))?;
+
+    if let Some(window) = app.get_webview_window("main") {
+        let _ = window.set_focus();
+    }
+
+    #[cfg(target_os = "windows")]
+    {
+        if let Some(window) = app.get_webview_window("main") {
+            let _ = window.set_skip_taskbar(false);
+        }
+    }
+    #[cfg(target_os = "macos")]
+    {
+        crate::tray::apply_tray_policy(app, true);
+    }
+
+    LIGHTWEIGHT_MODE.store(false, Ordering::Release);
+    crate::tray::refresh_tray_menu(app);
+    log::info!("退出轻量模式");
+    Ok(())
+}
+
+pub fn is_lightweight_mode() -> bool {
+    LIGHTWEIGHT_MODE.load(Ordering::Acquire)
+}
\ No newline at end of file
diff --git a/src-tauri/src/tray.rs b/src-tauri/src/tray.rs
index e7b991324..f5b068157 100644
--- a/src-tauri/src/tray.rs
+++ b/src-tauri/src/tray.rs
@@ -14,6 +14,7 @@ use crate::store::AppState;
 pub struct TrayTexts {
     pub show_main: &'static str,
     pub no_provider_hint: &'static str,
+    pub lightweight_mode: &'static str,
     pub quit: &'static str,
     pub _auto_label: &'static str,
 }
@@ -24,6 +25,7 @@ impl TrayTexts {
             "en" => Self {
                 show_main: "Open main window",
                 no_provider_hint: "  (No providers yet, please add them from the main window)",
+                lightweight_mode: "Lightweight Mode",
                 quit: "Quit",
                 _auto_label: "Auto (Failover)",
             },
@@ -31,12 +33,14 @@ impl TrayTexts {
                 show_main: "メインウィンドウを開く",
                 no_provider_hint:
                     "  (プロバイダーがまだありません。メイン画面から追加してください)",
+                lightweight_mode: "軽量モード",
                 quit: "終了",
                 _auto_label: "自動 (フェイルオーバー)",
             },
             _ => Self {
                 show_main: "打开主界面",
                 no_provider_hint: "  (无供应商，请在主界面添加)",
+                lightweight_mode: "轻量模式",
                 quit: "退出",
                 _auto_label: "自动 (故障转移)",
             },
@@ -382,6 +386,19 @@ pub fn create_tray_menu(
         menu_builder = menu_builder.separator();
     }
 
+    let lightweight_item = CheckMenuItem::with_id(
+        app,
+        "lightweight_mode",
+        tray_texts.lightweight_mode,
+        true,
+        crate::lightweight::is_lightweight_mode(),
+        None::<&str>,
+    ).map_err(|e| AppError::Message(format!("创建轻量模式菜单失败: {e}")))?;
+
+    menu_builder = menu_builder
+        .item(&lightweight_item)
+        .separator();
+
     // 退出菜单（分隔符已在上面的 section 循环中添加）
     let quit_item = MenuItem::with_id(app, "quit", tray_texts.quit, true, None::<&str>)
         .map_err(|e| AppError::Message(format!("创建退出菜单失败: {e}")))?;
@@ -393,6 +410,20 @@ pub fn create_tray_menu(
         .map_err(|e| AppError::Message(format!("构建菜单失败: {e}")))
 }
 
+pub fn refresh_tray_menu(app: &tauri::AppHandle) {
+    use crate::store::AppState;
+
+    if let Some(state) = app.try_state::<AppState>() {
+        if let Ok(new_menu) = create_tray_menu(app, state.inner()) {
+            if let Some(tray) = app.tray_by_id("main") {
+                if let Err(e) = tray.set_menu(Some(new_menu)) {
+                    log::error!("刷新托盘菜单失败: {e}");
+                }
+            }
+        }
+    }
+}
+
 #[cfg(target_os = "macos")]
 pub fn apply_tray_policy(app: &tauri::AppHandle, dock_visible: bool) {
     use tauri::ActivationPolicy;
@@ -430,6 +461,21 @@ pub fn handle_tray_menu_event(app: &tauri::AppHandle, event_id: &str) {
                 {
                     apply_tray_policy(app, true);
                 }
+            } else if crate::lightweight::is_lightweight_mode() {
+                if let Err(e) = crate::lightweight::exit_lightweight_mode(app) {
+                    log::error!("退出轻量模式重建窗口失败: {e}");
+                }
+            }
+        }
+        "lightweight_mode" => {
+            if crate::lightweight::is_lightweight_mode() {
+                if let Err(e) = crate::lightweight::exit_lightweight_mode(app) {
+                    log::error!("退出轻量模式失败: {e}");
+                }
+            } else {
+                if let Err(e) = crate::lightweight::enter_lightweight_mode(app) {
+                    log::error!("进入轻量模式失败: {e}");
+                }
             }
         }
         "quit" => {