diff --git a/embedding_ollama.py b/embedding_ollama.py
index b755ddd..8dd6dea 100644
--- a/embedding_ollama.py
+++ b/embedding_ollama.py
@@ -5,15 +5,18 @@ from typing import List
 class OllamaEmbeddings:
     """
     Ollama 本地服务提供的 Embedding 接口，
-    本需求里我们最终拼出形如: http://localhost:11434/api/embed
+    最终拼出形如: http://localhost:11434/api/embed
     即 base_url + "/embed"
     """
 
     def __init__(self, model_name: str, base_url: str):
         self.model_name = model_name
-        self.base_url = base_url  # 这里应形如 http://localhost:11434/api (不再含 /v1)
+        self.base_url = base_url  # 这里一般形如 http://localhost:11434/api (而非 /v1)
 
     def embed(self, texts: List[str]) -> List[List[float]]:
+        """
+        批量将多段文本转换为embedding向量
+        """
         embeddings = []
         for text in texts:
             embeddings.append(self.embed_single_document(text))
@@ -21,13 +24,9 @@ class OllamaEmbeddings:
     
     def embed_documents(self, texts: List[str]) -> List[List[float]]:
         """
-        将多段文本转换为向量列表
+        兼容langchain的接口写法
         """
-        embeddings = []
-        for text in texts:
-            emb = self.embed_single_document(text)
-            embeddings.append(emb)
-        return embeddings
+        return self.embed(texts)
 
     def embed_query(self, query: str) -> List[float]:
         """
@@ -38,7 +37,6 @@ class OllamaEmbeddings:
     def embed_single_document(self, text: str) -> List[float]:
         """
         调用 Ollama 本地服务接口，获取文本的 embedding。
-        这里统一改为请求:  [base_url]/embed
         """
         url = f"{self.base_url}/embed"
         data = {
@@ -49,6 +47,8 @@ class OllamaEmbeddings:
             response = requests.post(url, json=data)
             response.raise_for_status()
             result = response.json()
+            if "embedding" not in result:
+                raise ValueError("No 'embedding' field in Ollama response.")
             return result["embedding"]
         except requests.exceptions.RequestException as e:
             raise Exception(f"Ollama embeddings request error: {e}")
diff --git a/novel_generator.py b/novel_generator.py
index 71343a2..0b01ac6 100644
--- a/novel_generator.py
+++ b/novel_generator.py
@@ -29,12 +29,11 @@ from embedding_ollama import OllamaEmbeddings
 from chapter_directory_parser import get_chapter_info_from_directory
 
 # ============ 日志配置 ============
-
 logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
 
 def debug_log(prompt: str, response_content: str):
-        logging.info(f"\n[Prompt >>>] {prompt}\n")
-        logging.info(f"[Response >>>] {response_content}\n")
+    logging.info(f"\n[Prompt >>>] {prompt}\n")
+    logging.info(f"[Response >>>] {response_content}\n")
 
 # ============ 判断接口格式相关 ============
 
@@ -54,7 +53,6 @@ def is_using_ml_studio_api(interface_format: str, base_url: str) -> bool:
         return True
     return False
 
-
 # ============ 创建 Embeddings 对象 ============
 
 def create_embeddings_object(
@@ -67,25 +65,23 @@ def create_embeddings_object(
     """
     根据用户在UI中配置的参数，返回对应的 embeddings 对象。
     - 当 interface_format = "Ollama" => OllamaEmbeddings(...)
-      （此时把 embed_url 中的 /v1 替换成 /api，以便最后调用 /api/embed）
-    - 当 interface_format = "OpenAI" or "ML Studio" => OpenAIEmbeddings
-    - 其它情况视需求可扩展
+    - 当 interface_format = "OpenAI"/"ML Studio" => OpenAIEmbeddings(...)
+    - 其它情况可扩展
     """
     if is_using_ollama_api(interface_format, embed_url):
         fixed_url = embed_url.rstrip("/")
+        # Ollama embedding接口通常是 /api/embed
         fixed_url = fixed_url.replace("/v1", "/api")
         return OllamaEmbeddings(
             model_name=embedding_model_name,
             base_url=fixed_url
         )
     elif is_using_ml_studio_api(interface_format, base_url):
-        # ML Studio / OpenAI 兼容
         return OpenAIEmbeddings(openai_api_key=api_key, openai_api_base=base_url)
     else:
         # 默认使用 OpenAIEmbeddings
         return OpenAIEmbeddings(openai_api_key=api_key, openai_api_base=base_url)
 
-
 # ============ 向量库相关 ============
 
 VECTOR_STORE_DIR = os.path.join(os.getcwd(), "vectorstore")
@@ -225,9 +221,7 @@ def get_relevant_context_from_vector_store(
         logging.info("No vector store found. Returning empty context.")
         return ""
     
-    # 向量库存在，但没有足够的内容时也避免索引错误
     docs = store.similarity_search(query, k=k)
-    
     if not docs:
         logging.info(f"No relevant documents found for query '{query}'. Returning empty context.")
         return ""
@@ -235,7 +229,6 @@ def get_relevant_context_from_vector_store(
     combined = "\n".join([d.page_content for d in docs])
     return combined
 
-
 # ============ 多步生成：设置 & 目录 ============
 
 class OverallState(TypedDict):
@@ -308,7 +301,7 @@ def Novel_novel_directory_generate(
         debug_log(prompt, response.content)
         return {"dark_lines": response.content.strip()}
 
-    def finalize_novel_setting(state: OverallState) -> Dict[str, str]:
+    def finalize_novel_setting_func(state: OverallState) -> Dict[str, str]:
         prompt = finalize_setting_prompt.format(
             novel_setting_base=state["novel_setting_base"],
             character_setting=state["character_setting"],
@@ -321,7 +314,7 @@ def Novel_novel_directory_generate(
         debug_log(prompt, response.content)
         return {"final_novel_setting": response.content.strip()}
 
-    def generate_novel_directory(state: OverallState) -> Dict[str, str]:
+    def generate_novel_directory_func(state: OverallState) -> Dict[str, str]:
         prompt = novel_directory_prompt.format(
             final_novel_setting=state["final_novel_setting"],
             number_of_chapters=state["number_of_chapters"]
@@ -337,8 +330,8 @@ def Novel_novel_directory_generate(
     graph.add_node("generate_base_setting", generate_base_setting)
     graph.add_node("generate_character_setting", generate_character_setting)
     graph.add_node("generate_dark_lines", generate_dark_lines)
-    graph.add_node("finalize_novel_setting", finalize_novel_setting)
-    graph.add_node("generate_novel_directory", generate_novel_directory)
+    graph.add_node("finalize_novel_setting", finalize_novel_setting_func)
+    graph.add_node("generate_novel_directory", generate_novel_directory_func)
 
     graph.add_edge(START, "generate_base_setting")
     graph.add_edge("generate_base_setting", "generate_character_setting")
@@ -377,10 +370,14 @@ def Novel_novel_directory_generate(
     final_novel_setting_cleaned = clean_text(final_novel_setting)
     final_novel_directory_cleaned = clean_text(final_novel_directory)
 
-    append_text_to_file(final_novel_setting_cleaned, filename_set)
-    append_text_to_file(final_novel_directory_cleaned, filename_novel_directory)
-    logging.info("Novel settings and directory generated successfully.")
+    # 改进：写文件时先清空再写入
+    clear_file_content(filename_set)
+    save_string_to_txt(final_novel_setting_cleaned, filename_set)
 
+    clear_file_content(filename_novel_directory)
+    save_string_to_txt(final_novel_directory_cleaned, filename_novel_directory)
+
+    logging.info("Novel settings and directory generated successfully.")
 
 # ============ 获取最近N章内容，生成短期摘要 ============
 
@@ -401,7 +398,6 @@ def get_last_n_chapters_text(chapters_dir: str, current_chapter_num: int, n: int
         texts = [''] * (n - len(texts)) + texts
     return texts
 
-
 def summarize_recent_chapters(
     llm_model: str,
     api_key: str,
@@ -414,8 +410,10 @@ def summarize_recent_chapters(
     """
     if not chapters_text_list:
         return ""
-    if chapters_text_list==['', '', '']:
+    # 如果列表里全是空，则无法生成摘要
+    if all(not txt.strip() for txt in chapters_text_list):
         return "暂无摘要。"
+
     model = ChatOpenAI(
         model=llm_model,
         api_key=api_key,
@@ -431,10 +429,10 @@ def summarize_recent_chapters(
 
     response = model.invoke(prompt)
     if not response or not response.content.strip():
+        # 若模型无响应，就截取一段作为“备选”
         return combined_text[:800] + "..." if len(combined_text) > 800 else combined_text
     return response.content.strip()
 
-
 # ============ 新增：剧情要点/未解决冲突 ============
 
 PLOT_ARCS_PROMPT = """\
@@ -473,7 +471,6 @@ def update_plot_arcs(
         return old_plot_arcs
     return response.content.strip()
 
-
 # ============ 生成章节草稿 & 定稿 ============
 
 def generate_chapter_draft(
@@ -502,13 +499,12 @@ def generate_chapter_draft(
     chapter_title = chapter_info["chapter_title"]
     chapter_brief = chapter_info["chapter_brief"]
 
-    # 从向量库检索多次上下文（示例：对本章简介、用户指导分别做查询，再合并）
+    # 从向量库检索上下文
     queries = []
     if user_guidance.strip():
         queries.append(user_guidance)
     if chapter_brief.strip():
         queries.append(chapter_brief)
-    # 也可加一句“回顾剧情”之类
     queries.append("回顾剧情")
 
     relevant_context = ""
@@ -524,7 +520,6 @@ def generate_chapter_draft(
         )
         if partial_context.strip():
             relevant_context += "\n" + partial_context
-    # 如果检索结果为空，使用默认值（如空字符串）
     if not relevant_context:
         relevant_context = "暂无相关内容。"
 
@@ -716,7 +711,6 @@ def enrich_chapter_text(
         return chapter_text
     return response.content.strip()
 
-
 # ============ 导入外部知识文本 ============
 
 def import_knowledge_file(
@@ -740,6 +734,8 @@ def import_knowledge_file(
         logging.warning("知识库文件内容为空。")
         return
 
+    nltk.download('punkt_tab', quiet=True)
+
     paragraphs = advanced_split_content(content)
 
     store = load_vector_store(api_key, base_url, interface_format, embedding_model_name, embedding_base_url)
@@ -765,10 +761,8 @@ def advanced_split_content(content: str,
                            max_length: int = 500) -> List[str]:
     """
     将文本先按句子切分，然后根据语义相似度进行合并，最后按max_length二次切分。
+    可根据需要微调此逻辑。
     """
-    # 纠正下载punkt包：'punkt' 而非 'punkt_tab'
-    nltk.download('punkt', quiet=True)
-
     sentences = nltk.sent_tokenize(content)
     if not sentences:
         return []
diff --git a/ui.py b/ui.py
index dd787c5..43fe10c 100644
--- a/ui.py
+++ b/ui.py
@@ -8,7 +8,7 @@ import customtkinter as ctk
 from tkinter import filedialog, messagebox
 import traceback
 from config_manager import load_config, save_config
-from utils import read_file, save_string_to_txt
+from utils import read_file, save_string_to_txt, clear_file_content
 from novel_generator import (
     Novel_novel_directory_generate,
     generate_chapter_draft,
@@ -34,7 +34,14 @@ class NovelGeneratorGUI:
     def __init__(self, master):
         self.master = master
         self.master.title("Novel Generator GUI (CustomTkinter)")
-        self.master.iconbitmap("icon.ico")
+
+        # 防止因 icon.ico 不存在导致程序崩溃
+        try:
+            if os.path.exists("icon.ico"):
+                self.master.iconbitmap("icon.ico")
+        except Exception:
+            pass
+
         # 窗口最大化
         self.master.state("zoomed")
         # 配置窗口大小
@@ -90,9 +97,6 @@ class NovelGeneratorGUI:
 
     # ------------------ 主功能 Tab ------------------
     def build_main_tab(self):
-        """
-        主Tab: 左侧显示章节草稿/日志, 右侧是功能区 & 配置区
-        """
         self.main_tab.rowconfigure(0, weight=1)
         self.main_tab.columnconfigure(0, weight=1)
         self.main_tab.columnconfigure(1, weight=0)
@@ -100,6 +104,7 @@ class NovelGeneratorGUI:
         # 左侧Frame
         self.left_frame = ctk.CTkFrame(self.main_tab)
         self.left_frame.grid(row=0, column=0, sticky="nsew", padx=2, pady=2)
+
         # 右侧Frame
         self.right_frame = ctk.CTkFrame(self.main_tab)
         self.right_frame.grid(row=0, column=1, sticky="nsew", padx=2, pady=2)
@@ -110,11 +115,6 @@ class NovelGeneratorGUI:
         self.build_right_layout()
 
     def build_left_layout(self):
-        """
-        左侧包含两个区域：
-        1. 本章草稿内容（可编辑）
-        2. 输出日志（只读）
-        """
         self.left_frame.grid_rowconfigure(0, weight=3)
         self.left_frame.grid_rowconfigure(1, weight=1)
         self.left_frame.grid_columnconfigure(0, weight=1)
@@ -137,16 +137,11 @@ class NovelGeneratorGUI:
         self.log_text.configure(state="disabled")
 
     def build_right_layout(self):
-        """
-        右侧用于显示配置与功能按钮。
-        其中配置被拆分到一个子 TabView：AI接口配置 和 Embedding配置。
-        下面再放与小说相关的输入(主题/类型/章节数等)与功能按钮。
-        """
         self.right_frame.grid_rowconfigure(0, weight=0)
         self.right_frame.grid_rowconfigure(1, weight=0)
         self.right_frame.grid_rowconfigure(2, weight=1)
-        self.right_frame.grid_columnconfigure(0, weight=0)
-        self.right_frame.grid_columnconfigure(1, weight=1)
+        self.right_frame.columnconfigure(0, weight=0)
+        self.right_frame.columnconfigure(1, weight=1)
 
         # ========== 1. 配置项 TabView（AI接口配置 & Embedding配置） ==========
         self.config_tabview = ctk.CTkTabview(self.right_frame)
@@ -166,19 +161,6 @@ class NovelGeneratorGUI:
         self.build_main_buttons_area(start_row=10)
 
     def build_ai_config_tab(self):
-        """
-        在 AI接口配置 子Tab 上放置：
-        - API Key
-        - Base URL
-        - 接口格式
-        - 模型名称
-        - Temperature
-        """
-        for i in range(5):
-            self.ai_config_tab.grid_rowconfigure(i, weight=0)
-        self.ai_config_tab.grid_columnconfigure(0, weight=0)
-        self.ai_config_tab.grid_columnconfigure(1, weight=1)
-
         def on_interface_format_changed(new_value):
             # 如果用户切换接口格式，可根据需要修改BaseURL为默认值
             if new_value == "Ollama":
@@ -188,6 +170,11 @@ class NovelGeneratorGUI:
             elif new_value == "OpenAI":
                 self.base_url_var.set("https://api.agicto.cn/v1")
 
+        for i in range(5):
+            self.ai_config_tab.grid_rowconfigure(i, weight=0)
+        self.ai_config_tab.grid_columnconfigure(0, weight=0)
+        self.ai_config_tab.grid_columnconfigure(1, weight=1)
+
         # 1. API Key
         api_key_label = ctk.CTkLabel(self.ai_config_tab, text="API Key:", font=("Microsoft YaHei", 12))
         api_key_label.grid(row=0, column=0, padx=5, pady=5, sticky="e")
@@ -239,11 +226,6 @@ class NovelGeneratorGUI:
         self.temp_value_label.grid(row=4, column=2, padx=1, pady=1, sticky="w")
 
     def build_embeddings_config_tab(self):
-        """
-        在 Embedding配置 子Tab 上放置：
-        - Embedding URL
-        - Embedding 模型名称
-        """
         for i in range(2):
             self.embeddings_config_tab.grid_rowconfigure(i, weight=0)
         self.embeddings_config_tab.grid_columnconfigure(0, weight=0)
@@ -262,9 +244,6 @@ class NovelGeneratorGUI:
         emb_model_name_entry.grid(row=1, column=1, padx=5, pady=5, sticky="nsew")
 
     def build_novel_params_area(self, start_row=2):
-        """
-        放置与小说本身相关的一些配置：主题、类型、章节数、文件路径等
-        """
         # 主题(Topic)
         topic_label = ctk.CTkLabel(self.right_frame, text="主题(Topic):", font=("Microsoft YaHei", 12))
         topic_label.grid(row=start_row, column=0, padx=5, pady=5, sticky="e")
@@ -317,9 +296,6 @@ class NovelGeneratorGUI:
         self.user_guide_text.grid(row=start_row+6, column=1, padx=5, pady=5, sticky="nsew")
 
     def build_main_buttons_area(self, start_row=10):
-        """
-        主要功能按钮 + 配置保存/加载 按钮
-        """
         self.right_frame.grid_rowconfigure(start_row, weight=0)
 
         self.btn_frame_config = ctk.CTkFrame(self.right_frame)
@@ -418,6 +394,7 @@ class NovelGeneratorGUI:
 
         content = self.setting_text.get("0.0", "end").strip()
         setting_file = os.path.join(filepath, "Novel_setting.txt")
+        clear_file_content(setting_file)
         save_string_to_txt(content, setting_file)
         self.log("已保存对 Novel_setting.txt 的修改。")
 
@@ -456,6 +433,7 @@ class NovelGeneratorGUI:
 
         content = self.directory_text.get("0.0", "end").strip()
         directory_file = os.path.join(filepath, "Novel_directory.txt")
+        clear_file_content(directory_file)
         save_string_to_txt(content, directory_file)
         self.log("已保存对 Novel_directory.txt 的修改。")
 
@@ -494,6 +472,7 @@ class NovelGeneratorGUI:
 
         content = self.character_text.get("0.0", "end").strip()
         char_file = os.path.join(filepath, "character_state.txt")
+        clear_file_content(char_file)
         save_string_to_txt(content, char_file)
         self.log("已保存对 character_state.txt 的修改。")
 
@@ -532,6 +511,7 @@ class NovelGeneratorGUI:
 
         content = self.summary_text.get("0.0", "end").strip()
         summary_file = os.path.join(filepath, "global_summary.txt")
+        clear_file_content(summary_file)
         save_string_to_txt(content, summary_file)
         self.log("已保存对 global_summary.txt 的修改。")
 
@@ -585,24 +565,35 @@ class NovelGeneratorGUI:
         if selected_dir:
             self.filepath_var.set(selected_dir)
 
-    # ------------------ 日志输出 ------------------
+    # ------------------ 日志输出（主线程安全） ------------------
     def log(self, message: str):
+        # 这里是主线程下安全的文本输出方法
         self.log_text.configure(state="normal")
         self.log_text.insert("end", message + "\n")
         self.log_text.see("end")
         self.log_text.configure(state="disabled")
 
-    # ------------------ 功能区 --------------------
-    def disable_button(self, btn):
-        btn.configure(state="disabled")
+    def safe_log(self, message: str):
+        # 子线程中调用：把真正的日志操作切换回主线程执行
+        self.master.after(0, lambda: self.log(message))
 
-    def enable_button(self, btn):
-        btn.configure(state="normal")
+    # 由于按钮更新也属于UI操作，也需要安全方式
+    def disable_button_safe(self, btn):
+        self.master.after(0, lambda: btn.configure(state="disabled"))
 
+    def enable_button_safe(self, btn):
+        self.master.after(0, lambda: btn.configure(state="normal"))
+
+    # ------------------ 功能区（带线程处理） --------------------
     def generate_full_novel(self):
         """生成小说设定 & 目录"""
+        filepath = self.filepath_var.get().strip()
+        if not filepath:
+            messagebox.showwarning("警告", "请先选择保存文件路径")
+            return
+
         def task():
-            self.disable_button(self.btn_generate_full)
+            self.disable_button_safe(self.btn_generate_full)
             try:
                 api_key = self.api_key_var.get().strip()
                 base_url = self.base_url_var.get().strip()
@@ -611,14 +602,9 @@ class NovelGeneratorGUI:
                 genre = self.genre_var.get().strip()
                 num_chapters = self.num_chapters_var.get()
                 word_number = self.word_number_var.get()
-                filepath = self.filepath_var.get().strip()
                 temperature = self.temperature_var.get()
 
-                if not filepath:
-                    messagebox.showwarning("警告", "请先选择保存文件路径")
-                    return
-
-                self.log("开始生成小说设定和目录...")
+                self.safe_log("开始生成小说设定和目录...")
                 Novel_novel_directory_generate(
                     api_key=api_key,
                     base_url=base_url,
@@ -630,35 +616,33 @@ class NovelGeneratorGUI:
                     filepath=filepath,
                     temperature=temperature
                 )
-                self.log("✅ 小说设定和目录生成完成。查看 Novel_setting.txt 和 Novel_directory.txt。")
+                self.safe_log("✅ 小说设定和目录生成完成。查看 Novel_setting.txt 和 Novel_directory.txt。")
             except Exception as e:
-                logging.error(f"生成小说设定 & 目录时出错: {e}")
-                self.log(f"❌ 生成小说设定 & 目录时出错: {e}")
+                log_error(f"生成小说设定 & 目录时出错: {e}")
+                self.safe_log(f"❌ 生成小说设定 & 目录时出错: {e}")
             finally:
-                self.enable_button(self.btn_generate_full)
+                self.enable_button_safe(self.btn_generate_full)
 
-        thread = threading.Thread(target=task)
-        thread.start()
+        threading.Thread(target=task, daemon=True).start()
 
     def generate_chapter_draft_ui(self):
         """生成当前章节的草稿"""
+        filepath = self.filepath_var.get().strip()
+        if not filepath:
+            messagebox.showwarning("警告", "请先配置保存文件路径。")
+            return
+
         def task():
-            self.disable_button(self.btn_generate_chapter)
+            self.disable_button_safe(self.btn_generate_chapter)
             try:
                 api_key = self.api_key_var.get().strip()
                 base_url = self.base_url_var.get().strip()
                 model_name = self.model_name_var.get().strip()
                 temperature = self.temperature_var.get()
-                filepath = self.filepath_var.get().strip()
-
-                if not filepath:
-                    self.log("请先配置保存文件路径。")
-                    return
-
                 novel_settings_file = os.path.join(filepath, "Novel_setting.txt")
                 novel_settings = read_file(novel_settings_file)
                 if not novel_settings.strip():
-                    self.log("⚠️ 未找到 Novel_setting.txt，请先生成设定。")
+                    self.safe_log("⚠️ 未找到 Novel_setting.txt，请先生成设定。")
                     return
 
                 character_state_file = os.path.join(filepath, "character_state.txt")
@@ -685,7 +669,7 @@ class NovelGeneratorGUI:
                     chapters_text_list=recent_3_texts
                 )
 
-                self.log(f"开始生成第{chap_num}章草稿...")
+                self.safe_log(f"开始生成第{chap_num}章草稿...")
                 draft_text = generate_chapter_draft(
                     novel_settings=novel_settings,
                     global_summary=global_summary,
@@ -705,43 +689,46 @@ class NovelGeneratorGUI:
                     embedding_base_url=self.embedding_url_var.get().strip()
                 )
                 if draft_text:
-                    self.log(f"✅ 第{chap_num}章草稿生成完成。请在左侧查看或编辑。")
-                    self.chapter_result.delete("0.0", "end")
-                    self.chapter_result.insert("0.0", draft_text)
-                    self.chapter_result.see("end")
+                    self.safe_log(f"✅ 第{chap_num}章草稿生成完成。请在左侧查看或编辑。")
+                    # 更新UI中的章节草稿
+                    self.master.after(0, lambda: self.show_chapter_in_textbox(draft_text))
                 else:
-                    self.log("⚠️ 本章草稿生成失败或无内容。")
+                    self.safe_log("⚠️ 本章草稿生成失败或无内容。")
 
             except Exception as e:
-                logging.error(f"生成章节草稿时出错: {e}")
-                self.log(f"❌ 生成章节草稿时出错: {e}")
+                log_error(f"生成章节草稿时出错: {e}")
+                self.safe_log(f"❌ 生成章节草稿时出错: {e}")
             finally:
-                self.enable_button(self.btn_generate_chapter)
+                self.enable_button_safe(self.btn_generate_chapter)
 
-        thread = threading.Thread(target=task)
-        thread.start()
+        threading.Thread(target=task, daemon=True).start()
+
+    def show_chapter_in_textbox(self, text: str):
+        self.chapter_result.delete("0.0", "end")
+        self.chapter_result.insert("0.0", text)
+        self.chapter_result.see("end")
 
     def finalize_chapter_ui(self):
         """定稿当前章节：更新全局摘要、角色状态、向量库等"""
+        filepath = self.filepath_var.get().strip()
+        if not filepath:
+            messagebox.showwarning("警告", "请先配置保存文件路径。")
+            return
+
         def task():
-            self.disable_button(self.btn_finalize_chapter)
+            self.disable_button_safe(self.btn_finalize_chapter)
             try:
                 api_key = self.api_key_var.get().strip()
                 base_url = self.base_url_var.get().strip()
                 model_name = self.model_name_var.get().strip()
                 temperature = self.temperature_var.get()
-                filepath = self.filepath_var.get().strip()
                 interface_format = self.interface_format_var.get().strip()
                 embedding_model_name = self.embedding_model_name_var.get().strip()
 
-                if not filepath:
-                    self.log("请先配置保存文件路径。")
-                    return
-
                 chap_num = self.chapter_num_var.get()
                 word_number = self.word_number_var.get()
 
-                self.log(f"开始定稿第{chap_num}章...")
+                self.safe_log(f"开始定稿第{chap_num}章...")
                 finalize_chapter(
                     novel_number=chap_num,
                     word_number=word_number,
@@ -753,38 +740,35 @@ class NovelGeneratorGUI:
                     temperature=temperature,
                     filepath=filepath
                 )
-                self.log(f"✅ 第{chap_num}章定稿完成（已更新全局摘要、角色状态、剧情要点、向量库）。")
+                self.safe_log(f"✅ 第{chap_num}章定稿完成（已更新全局摘要、角色状态、剧情要点、向量库）。")
 
                 # 读取定稿后的文本显示
                 chap_file = os.path.join(filepath, "chapters", f"chapter_{chap_num}.txt")
                 final_text = read_file(chap_file)
-                self.chapter_result.delete("0.0", "end")
-                self.chapter_result.insert("0.0", final_text)
-                self.chapter_result.see("end")
+                self.master.after(0, lambda: self.show_chapter_in_textbox(final_text))
 
             except Exception as e:
-                logging.error(f"定稿章节时出错: {e}")
-                self.log(f"❌ 定稿章节时出错: {e}")
+                log_error(f"定稿章节时出错: {e}")
+                self.safe_log(f"❌ 定稿章节时出错: {e}")
             finally:
-                self.enable_button(self.btn_finalize_chapter)
+                self.enable_button_safe(self.btn_finalize_chapter)
 
-        thread = threading.Thread(target=task)
-        thread.start()
+        threading.Thread(target=task, daemon=True).start()
 
     def do_consistency_check(self):
         """使用审校Agent对最新章节进行简单一致性或冲突检查"""
+        filepath = self.filepath_var.get().strip()
+        if not filepath:
+            messagebox.showwarning("警告", "请先配置保存文件路径。")
+            return
+
         def task():
-            self.disable_button(self.btn_check_consistency)
+            self.disable_button_safe(self.btn_check_consistency)
             try:
                 api_key = self.api_key_var.get().strip()
                 base_url = self.base_url_var.get().strip()
                 model_name = self.model_name_var.get().strip()
                 temperature = self.temperature_var.get()
-                filepath = self.filepath_var.get().strip()
-
-                if not filepath:
-                    self.log("请先配置保存文件路径。")
-                    return
 
                 novel_settings_file = os.path.join(filepath, "Novel_setting.txt")
                 character_state_file = os.path.join(filepath, "character_state.txt")
@@ -801,10 +785,10 @@ class NovelGeneratorGUI:
                 chapter_text = read_file(chap_file)
 
                 if not chapter_text.strip():
-                    self.log("⚠️ 当前章节文件为空或不存在，无法审校。")
+                    self.safe_log("⚠️ 当前章节文件为空或不存在，无法审校。")
                     return
 
-                self.log("开始一致性审校...")
+                self.safe_log("开始一致性审校...")
                 result = check_consistency(
                     novel_setting=novel_setting,
                     character_state=character_state,
@@ -816,17 +800,16 @@ class NovelGeneratorGUI:
                     temperature=temperature,
                     plot_arcs=plot_arcs
                 )
-                self.log("审校结果：")
-                self.log(result)
+                self.safe_log("审校结果：")
+                self.safe_log(result)
 
             except Exception as e:
-                logging.error(f"审校时出错: {e}")
-                self.log(f"❌ 审校时出错: {e}")
+                log_error(f"审校时出错: {e}")
+                self.safe_log(f"❌ 审校时出错: {e}")
             finally:
-                self.enable_button(self.btn_check_consistency)
+                self.enable_button_safe(self.btn_check_consistency)
 
-        thread = threading.Thread(target=task)
-        thread.start()
+        threading.Thread(target=task, daemon=True).start()
 
     def import_knowledge_handler(self):
         """处理导入知识库文件。"""
@@ -836,9 +819,9 @@ class NovelGeneratorGUI:
         )
         if selected_file:
             def task():
-                self.disable_button(self.btn_import_knowledge)
+                self.disable_button_safe(self.btn_import_knowledge)
                 try:
-                    self.log(f"开始导入知识库文件: {selected_file}")
+                    self.safe_log(f"开始导入知识库文件: {selected_file}")
                     import_knowledge_file(
                         api_key=self.api_key_var.get().strip(),
                         base_url=self.base_url_var.get().strip(),
@@ -847,15 +830,14 @@ class NovelGeneratorGUI:
                         file_path=selected_file,
                         embedding_base_url=self.embedding_url_var.get().strip()
                     )
-                    self.log("✅ 知识库文件导入完成。")
+                    self.safe_log("✅ 知识库文件导入完成。")
                 except Exception as e:
-                    logging.error(f"导入知识库时出错: {e}")
-                    self.log(f"❌ 导入知识库时出错: {e}")
+                    log_error(f"导入知识库时出错: {e}")
+                    self.safe_log(f"❌ 导入知识库时出错: {e}")
                 finally:
-                    self.enable_button(self.btn_import_knowledge)
+                    self.enable_button_safe(self.btn_import_knowledge)
 
-            thread = threading.Thread(target=task)
-            thread.start()
+            threading.Thread(target=task, daemon=True).start()
 
     def clear_vectorstore_handler(self):
         """清空向量库按钮：弹出二次确认。"""