diff --git a/app_gui.py b/app_gui.py
index 3a0a961..090fad3 100644
--- a/app_gui.py
+++ b/app_gui.py
@@ -780,6 +780,8 @@ class App(tk.Tk):
         env = os.environ.copy()
         env["PYTHONIOENCODING"] = "utf-8"
         env["WECHAT_DECRYPT_APP_DIR"] = BASE_DIR
+        env["WECHAT_DECRYPT_GUI"] = "1"
+        env["WECHAT_DECRYPT_NONINTERACTIVE"] = "1"
 
         if self._selected_contacts:
             env["WECHAT_EXPORT_CONTACTS"] = ",".join(self._selected_contacts)
diff --git a/config.py b/config.py
index c738ee2..00cc3b0 100644
--- a/config.py
+++ b/config.py
@@ -54,7 +54,11 @@ def _choose_candidate(candidates):
     if len(candidates) == 1:
         return candidates[0]
     if len(candidates) > 1:
-        if not sys.stdin.isatty():
+        if (
+            os.environ.get("WECHAT_DECRYPT_NONINTERACTIVE") == "1"
+            or os.environ.get("WECHAT_DECRYPT_GUI") == "1"
+            or not sys.stdin.isatty()
+        ):
             return candidates[0]
         print("[!] 检测到多个微信数据目录（请选择当前正在运行的微信账号）:")
         for i, c in enumerate(candidates, 1):
diff --git a/find_wxwork_keys.py b/find_wxwork_keys.py
index 78d3a81..cc98cf1 100644
--- a/find_wxwork_keys.py
+++ b/find_wxwork_keys.py
@@ -140,6 +140,35 @@ def get_wxwork_pids():
 
 # ── WXWork 数据目录自动检测 ──────────────────────────────────────────
 
+def _wxwork_data_dir_mtime(data_dir):
+    """返回企业微信 Data 目录最近活跃时间，用于多账号自动选择。"""
+    latest = 0
+    for root, dirs, files in os.walk(data_dir):
+        dirs[:] = [d for d in dirs if d not in ("-journal",)]
+        for name in files:
+            if not name.endswith((".db", ".db-wal", ".db-shm")):
+                continue
+            path = os.path.join(root, name)
+            try:
+                latest = max(latest, os.path.getmtime(path))
+            except OSError:
+                pass
+    try:
+        latest = max(latest, os.path.getmtime(data_dir))
+    except OSError:
+        pass
+    return latest
+
+
+def _is_noninteractive_mode():
+    return (
+        os.environ.get("WECHAT_DECRYPT_NONINTERACTIVE") == "1"
+        or os.environ.get("WXWORK_AUTO_SELECT_DB") == "1"
+        or os.environ.get("WECHAT_DECRYPT_GUI") == "1"
+        or not sys.stdin.isatty()
+    )
+
+
 def auto_detect_wxwork_db_dir():
     """扫描 %USERPROFILE%\\Documents\\WXWork\\*\\Data 寻找包含加密DB的目录"""
     docs = os.path.join(os.environ.get("USERPROFILE", ""), "Documents", "WXWork")
@@ -168,11 +197,18 @@ def auto_detect_wxwork_db_dir():
 
     if not candidates:
         return None
+    candidates.sort(key=_wxwork_data_dir_mtime, reverse=True)
     if len(candidates) == 1:
         return candidates[0]
 
-    if not sys.stdin.isatty():
+    if _is_noninteractive_mode():
+        selected = candidates[0]
+        print("[!] 检测到多个企业微信数据目录，非交互模式下自动选择最近活跃目录:")
+        for i, c in enumerate(candidates, 1):
+            marker = " *" if c == selected else "  "
+            print(f"   {marker} {i}. {c}")
         return candidates[0]
+
     print("[!] 检测到多个企业微信数据目录:")
     for i, c in enumerate(candidates, 1):
         print(f"    {i}. {c}")