diff --git a/bot.py b/bot.py
index 45acc3a03..542c6f912 100644
--- a/bot.py
+++ b/bot.py
@@ -2,24 +2,21 @@ import asyncio
 import hashlib
 import os
 import sys
-from pathlib import Path
 import time
 import platform
 import traceback
+from pathlib import Path
 from dotenv import load_dotenv
-
-# 最早期初始化日志系统，确保所有后续模块都使用正确的日志格式
-from src.common.logger import initialize_logging
-
-initialize_logging()
-
-from src.common.logger import get_logger
-from src.common.crash_logger import install_crash_handler
-from src.main import MainSystem
 from rich.traceback import install
 
+# 最早期初始化日志系统，确保所有后续模块都使用正确的日志格式
+from src.common.logger import initialize_logging, get_logger
+from src.common.crash_logger import install_crash_handler
+from src.main import MainSystem
 from src.manager.async_task_manager import async_task_manager
 
+initialize_logging()
+
 logger = get_logger("main")
 
 # 直接加载生产环境变量配置
diff --git a/reload_config_now.py b/reload_config_now.py
index 2510bb7ff..8ce272608 100644
--- a/reload_config_now.py
+++ b/reload_config_now.py
@@ -10,7 +10,7 @@ from pathlib import Path
 src_path = Path(__file__).parent / "src"
 sys.path.insert(0, str(src_path))
 
-from common.logger import reload_log_config
+from common.logger import reload_log_config  # noqa: E402
 
 print("🔄 重新加载日志配置...")
 reload_log_config()
diff --git a/scripts/log_viewer.py b/scripts/log_viewer.py
index b37caafe5..68f7fa02c 100644
--- a/scripts/log_viewer.py
+++ b/scripts/log_viewer.py
@@ -674,7 +674,7 @@ class LogViewer:
             frame = ttk.Frame(inner_frame)
             frame.pack(fill=tk.X, padx=5, pady=2)
             ttk.Label(frame, text=level).pack(side=tk.LEFT)
-            color_btn = ttk.Button(frame, text="选择颜色", command=lambda l=level: self.choose_color(l))
+            color_btn = ttk.Button(frame, text="选择颜色", command=lambda level_name=level: self.choose_color(level_name))
             color_btn.pack(side=tk.RIGHT)
             # 显示当前颜色
             color_label = ttk.Label(frame, text="■", foreground=self.formatter.level_colors[level])