diff --git a/scripts/data_platform/bs_eod.py b/scripts/data_platform/bs_eod.py
index 26098fd..2af06bb 100644
--- a/scripts/data_platform/bs_eod.py
+++ b/scripts/data_platform/bs_eod.py
@@ -81,7 +81,10 @@ log = logging.getLogger(__name__)
 
 def login_once():
     try:
-        lg = bs.login()
+        # 2026-08-20 实锤: bs.login() 打印 "login success!" 后仍有后续往返, 服务端
+        # hiccup 时主线程可卡死在 login 内部 recv(08-20 19:26 挂死 50min+ 形态:
+        # logout✓ login success!打印后零输出) —— 与 fetch 同罩 _with_timeout。
+        lg = _with_timeout(bs.login, timeout=60)
         if lg.error_code == "0":
             return True
         log.error("login fail: %s %s", lg.error_code, lg.error_msg)
@@ -93,14 +96,14 @@ def login_once():
 
 def relogin():
     try:
-        bs.logout()
+        _with_timeout(bs.logout, timeout=30)
     except Exception:
         pass
     if login_once():
         return True
     time.sleep(2)
     try:
-        bs.logout()
+        _with_timeout(bs.logout, timeout=30)
     except Exception:
         pass
     return login_once()
diff --git a/scripts/data_platform/bs_fundamentals.py b/scripts/data_platform/bs_fundamentals.py
index c1d8654..7633024 100644
--- a/scripts/data_platform/bs_fundamentals.py
+++ b/scripts/data_platform/bs_fundamentals.py
@@ -269,8 +269,12 @@ def run_reports(stocks, today, force=False):
 # ======================== bs_eod 在跑守卫 ========================
 
 def _is_running_text(text):
-    """schtasks /query 输出判断 Running(schtasks 可能英/中输出, 两词都认)."""
-    return ("Running" in text) or ("运行中" in text)
+    """schtasks /query 输出判断 Running(schtasks 可能英/中输出, 各词都认).
+
+    2026-08-20 实锤: 中文系统输出是「正在运行」, 不含连续子串「运行中」——
+    原两词判定在中文 VPS 恒 False(守卫恒 fail-open), 三词都认才对。
+    """
+    return any(w in text for w in ("Running", "运行中", "正在运行"))
 
 
 def _bs_eod_running():
diff --git a/scripts/data_platform/check_task_running.py b/scripts/data_platform/check_task_running.py
new file mode 100644
index 0000000..5eb96fb
--- /dev/null
+++ b/scripts/data_platform/check_task_running.py
@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+"""check_task_running.py — schtask 是否在跑(exit 0=在跑, 1=已退出/查无)。
+运维探针(watcher/cron 轮询用)。中文输出「正在运行」不含子串「运行中」——三词都认
+(2026-08-20 假阳性实锤: 两词判定曾致 bs_eod 挂死被误判已退出)。"""
+import subprocess
+import sys
+
+task = sys.argv[1] if len(sys.argv) > 1 else 'sanguo-bs-daily'
+out = subprocess.run(['schtasks', '/query', '/tn', task, '/fo', 'LIST'],
+                     capture_output=True, timeout=30).stdout.decode('gbk', 'ignore')
+running = any(w in out for w in ('Running', '运行中', '正在运行'))
+print('%s: %s' % (task, 'RUNNING' if running else 'DONE/NOT-FOUND'))
+sys.exit(0 if running else 1)
diff --git a/tests/data_platform/test_bs_eod_resilience.py b/tests/data_platform/test_bs_eod_resilience.py
index e2514c9..f0efe5d 100644
--- a/tests/data_platform/test_bs_eod_resilience.py
+++ b/tests/data_platform/test_bs_eod_resilience.py
@@ -511,3 +511,41 @@ def test_main_exits_2_when_all_login_retries_fail(isolated_main_env, monkeypatch
     with pytest.raises(SystemExit) as ei:
         bs_eod.main()
     assert ei.value.code == 2
+
+
+# ---------- login/logout 超时保护伞 (2026-08-20 19:26 挂死实锤) ----------
+# 形态: 日志停在 "logout success!/login success!" 后零输出 50min+ —— bs.login()
+# 打印 success 后仍有后续往返, recv 不遵守 socket default timeout, 主线程卡死
+# 在 login 内部. fetch 早已套 _with_timeout, login/logout 当时是裸调.
+
+def test_login_once_timeout_returns_false(monkeypatch):
+    """bs.login 卡死(_with_timeout 抛 TimeoutError) → login_once 返 False 不挂死."""
+    monkeypatch.setattr(
+        bs_eod, "_with_timeout",
+        MagicMock(side_effect=TimeoutError("login 超过 60s")))
+    assert bs_eod.login_once() is False
+
+
+def test_relogin_survives_total_timeout(monkeypatch):
+    """logout+login 全部超时 → relogin 返 False 全程不 raise(上层跳过该股继续)."""
+    monkeypatch.setattr(
+        bs_eod, "_with_timeout",
+        MagicMock(side_effect=TimeoutError("socket 死")))
+    monkeypatch.setattr(bs_eod.time, "sleep", lambda s: None)
+    assert bs_eod.relogin() is False
+
+
+def test_login_logout_gone_through_timeout_umbrella(monkeypatch):
+    """契约: bs.login/bs.logout 必须经 _with_timeout 调用(裸调=挂死回归口)."""
+    ok_login = MagicMock()
+    ok_login.error_code = "0"
+    mock_bs = MagicMock()
+    mock_bs.login.return_value = ok_login
+    monkeypatch.setattr(bs_eod, "bs", mock_bs)
+    monkeypatch.setattr(
+        bs_eod, "_with_timeout",
+        MagicMock(side_effect=lambda fn, **kw: fn()))
+    assert bs_eod.relogin() is True
+    called = [c.args[0] for c in bs_eod._with_timeout.call_args_list]
+    assert mock_bs.logout in called
+    assert mock_bs.login in called
diff --git a/tests/data_platform/test_bs_fundamentals.py b/tests/data_platform/test_bs_fundamentals.py
index 6844310..2b5562a 100644
--- a/tests/data_platform/test_bs_fundamentals.py
+++ b/tests/data_platform/test_bs_fundamentals.py
@@ -221,6 +221,9 @@ def test_reports_skip_non_sunday_and_second_sunday(tmp_out, small_stocks,
 def test_is_running_text_variants():
     assert bf._is_running_text("Status: Running") is True
     assert bf._is_running_text("状态: 运行中") is True
+    # 2026-08-20 实锤回归钉: 中文系统实际输出「正在运行」, 不含连续子串「运行中」
+    # —— 两词判定恒 False 曾致守卫 fail-open(且当晚 check 探针误报任务已退出)
+    assert bf._is_running_text("状态: 正在运行") is True
     assert bf._is_running_text("Status: Ready") is False
     assert bf._is_running_text("模式: 就绪") is False