diff --git a/app.py b/app.py
index ff77163..c006dec 100644
--- a/app.py
+++ b/app.py
@@ -30,7 +30,6 @@ except OSError as e:
 # ================= 🔧 2. 核心模組導入 =================
 try:
     from flask import Flask, render_template, jsonify, request, send_file, redirect, url_for, send_from_directory, flash, session
-    from jinja2 import ChoiceLoader, FileSystemLoader
     from werkzeug.utils import secure_filename
     from pyngrok import ngrok, conf
     import schedule
@@ -128,7 +127,6 @@ else:
     sys_log.warning("[Security] ⚠️ NGROK_AUTH_TOKEN 未設定，已跳過 ngrok auth token 注入")
 
 TEMPLATE_DIR = os.path.join(BASE_DIR, 'templates')
-WEB_TEMPLATE_DIR = os.path.join(BASE_DIR, 'web/templates')
 STATIC_DIR = os.path.join(BASE_DIR, 'web/static')
 
 # 檢查關鍵模板是否存在
@@ -139,13 +137,6 @@ app = Flask(__name__,
             template_folder=TEMPLATE_DIR,
             static_folder=STATIC_DIR)
 
-if os.path.isdir(WEB_TEMPLATE_DIR):
-    # Keep newer module templates ahead of stale legacy copies that may exist on older hosts.
-    app.jinja_loader = ChoiceLoader([
-        FileSystemLoader(WEB_TEMPLATE_DIR),
-        app.jinja_loader,
-    ])
-
 # ==========================================
 # 🔒 Flask 安全配置
 # ==========================================
diff --git a/config.py b/config.py
index 67223d4..57820d2 100644
--- a/config.py
+++ b/config.py
@@ -320,7 +320,7 @@ YOUTUBE_API_KEY = os.getenv('YOUTUBE_API_KEY', '')
 # ==========================================
 # 系統版本與路徑
 # ==========================================
-SYSTEM_VERSION = "V10.144"
+SYSTEM_VERSION = "V10.145"
 LOG_FILE_PATH = os.path.join(BASE_DIR, 'logs/system.log')
 public_url = PUBLIC_URL  # 用於模板顯示
 
diff --git a/routes/vendor_routes.py b/routes/vendor_routes.py
index e51e0a9..0da4437 100644
--- a/routes/vendor_routes.py
+++ b/routes/vendor_routes.py
@@ -6,6 +6,7 @@
 """
 
 from flask import Blueprint, render_template, jsonify, request, send_file
+from jinja2 import ChoiceLoader, FileSystemLoader, PrefixLoader
 from werkzeug.utils import secure_filename
 from datetime import datetime, date
 from sqlalchemy import or_, func, desc
@@ -35,6 +36,20 @@ sys_log = SystemLogger("VendorRoutes").get_logger()
 _base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 _template_folder = os.path.join(_base_dir, 'web', 'templates')
 vendor_bp = Blueprint('vendor', __name__, url_prefix='/vendor-stockout', template_folder=_template_folder)
+_VENDOR_TEMPLATE_PREFIX = '__vendor_web__'
+
+
+@vendor_bp.record_once
+def _register_vendor_template_loader(setup_state):
+    app = setup_state.app
+    app.jinja_loader = ChoiceLoader([
+        PrefixLoader({_VENDOR_TEMPLATE_PREFIX: FileSystemLoader(_template_folder)}),
+        app.jinja_loader,
+    ])
+
+
+def _render_vendor_template(template_name, **context):
+    return render_template(f'{_VENDOR_TEMPLATE_PREFIX}/{template_name}', **context)
 
 # 初始化資料庫管理器
 vendor_db = VendorDatabaseManager()
@@ -49,7 +64,7 @@ def index():
     """廠商缺貨系統主頁"""
     sys_log.info("[VendorStockout] 進入廠商缺貨系統主頁")
     if request.args.get('ui') == 'legacy':
-        return render_template('vendor_stockout/index.html')
+        return _render_vendor_template('vendor_stockout/index.html')
     return render_template(
         'vendor_stockout_index_v2.html',
         active_page='vendor_stockout',
@@ -62,7 +77,7 @@ def import_page():
     """Excel 匯入頁面"""
     sys_log.info("[VendorStockout] 進入匯入頁面")
     if request.args.get('ui') == 'legacy':
-        return render_template('vendor_stockout/import.html')
+        return _render_vendor_template('vendor_stockout/import.html')
     return render_template(
         'vendor_stockout_import_v2.html',
         active_page='vendor_stockout'
@@ -74,7 +89,7 @@ def list_page():
     """缺貨清單頁面"""
     sys_log.info("[VendorStockout] 進入缺貨清單頁面")
     if request.args.get('ui') == 'legacy':
-        return render_template('vendor_stockout/list.html')
+        return _render_vendor_template('vendor_stockout/list.html')
     return render_template(
         'vendor_stockout_list_v2.html',
         active_page='vendor_stockout',
@@ -94,21 +109,21 @@ def list_page():
 def vendor_management_page():
     """廠商管理頁面"""
     sys_log.info("[VendorStockout] 進入廠商管理頁面")
-    return render_template('vendor_stockout/vendor_management.html')
+    return _render_vendor_template('vendor_stockout/vendor_management.html')
 
 
 @vendor_bp.route('/send-email')
 def send_email_page():
     """郵件發送頁面"""
     sys_log.info("[VendorStockout] 進入郵件發送頁面")
-    return render_template('vendor_stockout/send_email.html')
+    return _render_vendor_template('vendor_stockout/send_email.html')
 
 
 @vendor_bp.route('/history')
 def history_page():
     """發送歷史頁面"""
     sys_log.info("[VendorStockout] 進入發送歷史頁面")
-    return render_template('vendor_stockout/history.html')
+    return _render_vendor_template('vendor_stockout/history.html')
 
 
 # ==========================================