diff --git a/module/game/cloud.py b/module/game/cloud.py
index 39368bf7b..d74625460 100644
--- a/module/game/cloud.py
+++ b/module/game/cloud.py
@@ -43,6 +43,24 @@ class CloudGameController(GameControllerBase):
     BROWSER_TAG = "--march-7th-assistant-sr-cloud-game"  # 自定义浏览器参数作为标识，用于识别哪些浏览器进程属于三月七小助手
     BROWSER_INSTALL_PATH = os.path.join(os.getcwd(), "3rdparty", "WebBrowser")  # 浏览器安装路径
     INTEGRATED_BROWSER_VERSION = "140.0.7339.207"      # 浏览器版本
+    DISABLE_POINTER_LOCK_SCRIPT = """
+        (() => {
+            const blocked = function () {
+                return Promise.reject(new DOMException(
+                    'Pointer Lock is disabled in background mode.',
+                    'NotAllowedError'
+                ));
+            };
+            Object.defineProperty(Element.prototype, 'requestPointerLock', {
+                configurable: true,
+                writable: true,
+                value: blocked,
+            });
+            if (document.pointerLockElement && document.exitPointerLock) {
+                document.exitPointerLock();
+            }
+        })();
+    """
 
     @staticmethod
     def _get_platform_dir() -> str:
@@ -165,6 +183,20 @@ def _confirm_viewport_resolution(self) -> None:
             "mobile": False
         })
 
+    def _configure_pointer_lock(self, headless: bool) -> None:
+        """无窗口运行时禁止网页锁定系统鼠标指针。"""
+        if not headless or not self.driver:
+            return
+
+        try:
+            self.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
+                "source": self.DISABLE_POINTER_LOCK_SCRIPT,
+                "runImmediately": True,
+            })
+            self.log_debug("无窗口模式已禁用 Pointer Lock")
+        except Exception as e:
+            self.log_warning(f"无窗口模式禁用 Pointer Lock 失败: {e}")
+
     def _prepare_browser_and_driver(self, browser_type: str, integrated: bool) -> tuple[str, str]:
         self.user_profile_path = os.path.join(self.BROWSER_INSTALL_PATH, "UserProfile", self.cfg.browser_type.capitalize())
         # 判断环境变量 MARCH7TH_BROWSER_PATH 和 MARCH7TH_DRIVER_PATH，同时存在时优先使用
@@ -340,6 +372,7 @@ def _connect_or_create_browser(self, headless=False) -> None:
             try:
                 options.debugger_address = f"127.0.0.1:{reconnect_port}"
                 self.driver = webdriver_type(service=service, options=options)
+                self._configure_pointer_lock(headless)
                 self.log_info("已连接到现有浏览器")
                 return
             except Exception:
@@ -402,6 +435,7 @@ def _connect_or_create_browser(self, headless=False) -> None:
             self.log_error(f"浏览器启动失败: {e}")
             raise RuntimeError("浏览器启动失败")
 
+        self._configure_pointer_lock(headless)
         if not self.cfg.cloud_game_fullscreen_enable:
             self.driver.set_window_size(1920, 1120)
         if first_run or not self.cfg.browser_persistent_enable:
diff --git a/tests/test_module/test_cloud_game.py b/tests/test_module/test_cloud_game.py
new file mode 100644
index 000000000..bb50bfe57
--- /dev/null
+++ b/tests/test_module/test_cloud_game.py
@@ -0,0 +1,51 @@
+import unittest
+
+from module.game.cloud import CloudGameController
+
+
+class FakeDriver:
+    def __init__(self):
+        self.commands = []
+
+    def execute_cdp_cmd(self, command, params):
+        self.commands.append((command, params))
+
+
+class FakeLogger:
+    def __init__(self):
+        self.warnings = []
+
+    def debug(self, _message):
+        pass
+
+    def warning(self, message):
+        self.warnings.append(message)
+
+
+class TestCloudGamePointerLock(unittest.TestCase):
+    def create_controller(self):
+        controller = object.__new__(CloudGameController)
+        controller.driver = FakeDriver()
+        controller.logger = FakeLogger()
+        return controller
+
+    def test_pointer_lock_is_denied_in_headless_mode(self):
+        controller = self.create_controller()
+
+        controller._configure_pointer_lock(headless=True)
+
+        self.assertEqual(
+            controller.driver.commands[0][0],
+            "Page.addScriptToEvaluateOnNewDocument",
+        )
+        params = controller.driver.commands[0][1]
+        self.assertTrue(params["runImmediately"])
+        self.assertIn("requestPointerLock", params["source"])
+        self.assertIn("document.exitPointerLock", params["source"])
+
+    def test_pointer_lock_is_unchanged_in_visible_mode(self):
+        controller = self.create_controller()
+
+        controller._configure_pointer_lock(headless=False)
+
+        self.assertEqual(controller.driver.commands, [])