OpenDCAI · asd765973346 · Mar 27, 2026 · Feb 24, 2026 · Feb 27, 2026 · Mar 6, 2026
diff --git a/README.md b/README.md
@@ -7,10 +7,15 @@
 [![Python](https://img.shields.io/badge/Python-3.10+-3776AB?style=flat-square&logo=python&logoColor=white)](https://www.python.org/)
 [![Node](https://img.shields.io/badge/Node-18+-339933?style=flat-square&logo=node.js&logoColor=white)](https://nodejs.org/)
 [![License](https://img.shields.io/badge/License-Apache_2.0-2F80ED?style=flat-square&logo=apache&logoColor=white)](LICENSE)
+[![GitHub Stars](https://img.shields.io/github/stars/OpenDCAI/Open-NotebookLM?style=flat-square&logo=github)](https://github.com/OpenDCAI/Open-NotebookLM)
 
 English | [中文](README_ZH.md)
 
-**Open-source NotebookLM alternative** — Upload documents, chat with sources, generate PPTs / mind maps / podcasts / DrawIO diagrams / flashcards / quizzes / deep research reports in one click
+### Open-source NotebookLM Alternative
+
+Transform your documents into interactive knowledge bases with AI-powered chat, note-taking, and one-click content generation
+
+[Get Started](#-quick-start) · [Features](#-core-features) · [Documentation](#-project-structure) · [Community](#-community)
 
 </div>
 
@@ -28,32 +33,32 @@ English | [中文](README_ZH.md)
 ## 📸 Screenshots
 
 <div align="center">
-<img src="static/readme/dashboard.png" alt="Dashboard" width="90%"/>
+<img src="static/readme/dashboard_en.png" alt="Dashboard" width="90%"/>
 <p><em>Dashboard — Notebook management</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/notebook_view.png" alt="Notebook workspace" width="90%"/>
+<img src="static/readme/notebook_view_en.png" alt="Notebook workspace" width="90%"/>
 <p><em>Notebook workspace — Knowledge base + Smart QA + One-click generation</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/notebook_view_2.png" alt="Generation panel" width="90%"/>
+<img src="static/readme/notebook_view_2_en.png" alt="Generation panel" width="90%"/>
 <p><em>Generation panel — Multiple output formats</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/notebook_view_3.png" alt="Chat and knowledge base" width="90%"/>
+<img src="static/readme/notebook_view_3_en.png" alt="Chat and knowledge base" width="90%"/>
 <p><em>Chat and knowledge base details</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/ppt.png" alt="PPT generation" width="90%"/>
+<img src="static/readme/PPT_en.png" alt="PPT generation" width="90%"/>
 <p><em>PPT generation</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/mindmap.png" alt="Mind map" width="90%"/>
+<img src="static/readme/mindmap_en.png" alt="Mind map" width="90%"/>
 <p><em>Mind map</em></p>
 </div>
 
@@ -63,48 +68,95 @@ English | [中文](README_ZH.md)
 </div>
 
 <div align="center">
-<img src="static/readme/podcast.png" alt="Knowledge podcast" width="90%"/>
+<img src="static/readme/podcast_en.png" alt="Knowledge podcast" width="90%"/>
 <p><em>Knowledge podcast</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/flashcard.png" alt="Flashcards" width="90%"/>
+<img src="static/readme/flashcards_en.png" alt="Flashcards" width="90%"/>
 <p><em>Flashcard study</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/quiz.png" alt="Quiz" width="90%"/>
+<img src="static/readme/quiz_en.png" alt="Quiz" width="90%"/>
 <p><em>Quiz</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/search.png" alt="Web search" width="90%"/>
+<img src="static/readme/search_en.png" alt="Web search" width="90%"/>
 <p><em>Web search to import sources</em></p>
 </div>
 
 <div align="center">
-<img src="static/readme/deep_research.png" alt="Deep research report" width="90%"/>
+<img src="static/readme/deepresearch_en.png" alt="Deep research report" width="90%"/>
 <p><em>Deep research report generation</em></p>
 </div>
 
+<div align="center">
+<img src="static/readme/note_basic_en.png" alt="Note editor" width="90%"/>
+<p><em>Note editor — Notion-style block editor</em></p>
+</div>
+
+<div align="center">
+<img src="static/readme/note_basic_ai_en.png" alt="AI-assisted writing" width="90%"/>
+<p><em>AI-assisted writing — Polish, rewrite, explain</em></p>
+</div>
+
+<div align="center">
+<img src="static/readme/note_polish_en.png" alt="AI polish" width="90%"/>
+<p><em>AI polish — Enhance your writing</em></p>
+</div>
+
+<div align="center">
+<img src="static/readme/note_understanding_en.png" alt="AI explain" width="90%"/>
+<p><em>AI explain — Understand complex content</em></p>
+</div>
+
 ---
 
 ## ✨ Core Features
 
-| Feature | Description |
-|---------|-------------|
-| 📚 **Knowledge Base** | Upload PDFs, paste URLs/text, import from web search — aggregate multiple sources into a notebook |
-| 🔐 **User Management** | Supabase email + OTP authentication, multi-user data isolation; works without login when unconfigured |
-| 💬 **Smart QA** | RAG-based Q&A grounded in selected documents, with persistent chat history |
-| 🎨 **PPT Generation** | One-click editable slide decks from knowledge base content |
-| 🧠 **Mind Maps** | Generate Mermaid mind maps with preview and export |
-| 🎙️ **Knowledge Podcast** | Turn knowledge base content into podcast scripts and narration assets |
-| 🧩 **DrawIO Diagrams** | Generate editable DrawIO diagrams from text or images, with inline editor |
-| 🃏 **Flashcards** | Auto-generate study flashcards from knowledge base content |
-| 📝 **Quizzes** | Auto-generate multiple-choice questions with scoring |
-| 🔍 **Web Search** | Supports Serper / SerpAPI / Google CSE / Brave / Bocha search providers |
-| 📊 **Deep Research Reports** | Web search + LLM synthesis to produce structured research reports |
-| 🔗 **Semantic Search** | Local embedding-based vector retrieval with configurable Top-K and models |
+<table>
+<tr>
+<td width="50%">
+
+### 📚 Knowledge Management
+- **Multi-source Import**: PDFs, URLs, plain text, web search
+- **Semantic Search**: Local embedding-based vector retrieval
+- **Smart Organization**: Aggregate multiple sources into notebooks
+
+### 💬 AI-Powered Interaction
+- **RAG Q&A**: Context-aware answers grounded in your documents
+- **Chat History**: Persistent conversation threads
+- **Source Attribution**: Transparent reference tracking
+
+### ✍️ Intelligent Note-Taking
+- **Notion-Style Editor**: Block-based editing with Markdown support
+- **AI Writing Assistant**: Polish, rewrite, explain, and generate
+- **Rich Formatting**: Headings (1-6), lists, code blocks, quotes
+
+</td>
+<td width="50%">
+
+### 🎨 Content Generation
+- **Presentations**: Editable PPT slides from knowledge base
+- **Mind Maps**: Mermaid diagrams with preview and export
+- **Diagrams**: DrawIO charts with inline editor
+- **Podcasts**: Script generation with TTS narration
+
+### 📊 Learning Tools
+- **Flashcards**: Auto-generated study cards
+- **Quizzes**: Multiple-choice questions with scoring
+- **Deep Research**: Web search + LLM synthesis reports
+
+### 🔐 User Management
+- **Authentication**: Supabase email + OTP verification
+- **Multi-user Support**: Data isolation per user
+- **Trial Mode**: Full functionality without login
+
+</td>
+</tr>
+</table>
 
 ---
 

diff --git a/README_ZH.md b/README_ZH.md
@@ -7,10 +7,15 @@
 [![Python](https://img.shields.io/badge/Python-3.10+-3776AB?style=flat-square&logo=python&logoColor=white)](https://www.python.org/)
 [![Node](https://img.shields.io/badge/Node-18+-339933?style=flat-square&logo=node.js&logoColor=white)](https://nodejs.org/)
 [![License](https://img.shields.io/badge/License-Apache_2.0-2F80ED?style=flat-square&logo=apache&logoColor=white)](LICENSE)
+[![GitHub Stars](https://img.shields.io/github/stars/OpenDCAI/Open-NotebookLM?style=flat-square&logo=github)](https://github.com/OpenDCAI/Open-NotebookLM)
 
 中文 | [English](README.md)
 
-**开源的 NotebookLM 替代方案** — 上传文档，智能问答，一键生成 PPT / 思维导图 / 播客 / DrawIO 图表 / 闪卡 / 测试题 / 深度研究报告
+### 开源的 NotebookLM 替代方案
+
+将文档转化为交互式知识库，支持 AI 智能问答、笔记编辑和一键内容生成
+
+[快速开始](#-快速开始) · [核心功能](#-核心功能) · [项目文档](#-项目结构) · [交流社区](#-交流群)
 
 </div>
 
@@ -87,24 +92,71 @@
 <p><em>深度研究报告生成</em></p>
 </div>
 
+<div align="center">
+<img src="static/readme/note_basic.png" alt="笔记编辑器" width="90%"/>
+<p><em>笔记编辑器 — Notion 风格块编辑器</em></p>
+</div>
+
+<div align="center">
+<img src="static/readme/note_basic_ai.png" alt="AI 辅助写作" width="90%"/>
+<p><em>AI 辅助写作 — 润色、改写、解释</em></p>
+</div>
+
+<div align="center">
+<img src="static/readme/note_polish.png" alt="AI 润色" width="90%"/>
+<p><em>AI 润色 — 提升写作质量</em></p>
+</div>
+
+<div align="center">
+<img src="static/readme/note_understanding.png" alt="AI 解释" width="90%"/>
+<p><em>AI 解释 — 理解复杂内容</em></p>
+</div>
+
 ---
 
 ## ✨ 核心功能
 
-| 功能 | 说明 |
-|------|------|
-| 📚 **知识库管理** | 上传 PDF 等文档、粘贴网址/文本、联网搜索引入，多源聚合到笔记本 |
-| 🔐 **用户管理** | 基于 Supabase 的邮箱注册/登录 + OTP 验证，多用户数据隔离；不配置时可无登录体验全部功能 |
-| 💬 **智能问答** | 基于选中文档的 RAG 问答，对话历史持久化 |
-| 🎨 **PPT 生成** | 从知识库内容一键生成可编辑演示文稿 |
-| 🧠 **思维导图** | 生成 Mermaid 思维导图，支持预览与导出 |
-| 🎙️ **知识播客** | 将知识库内容转为播客脚本与讲解素材 |
-| 🧩 **DrawIO 图表** | 从文本或图片生成可编辑 DrawIO 图表，内嵌编辑器 |
-| 🃏 **闪卡** | 基于知识库内容自动生成学习闪卡 |
-| 📝 **测试题** | 自动生成选择题，支持作答与评分 |
-| 🔍 **联网搜索** | 支持 Serper / SerpAPI / Google CSE / Brave / 博查等多种搜索引擎 |
-| 📊 **深度研究报告** | 联网搜索 + LLM 综合分析，生成结构化研究报告 |
-| 🔗 **语义检索** | 本地 Embedding 向量检索，支持 Top-K 与多模型 |
+<table>
+<tr>
+<td width="50%">
+
+### 📚 知识管理
+- **多源导入**：PDF、网址、纯文本、联网搜索
+- **语义检索**：本地 Embedding 向量检索
+- **智能组织**：多源聚合到笔记本
+
+### 💬 AI 智能交互
+- **RAG 问答**：基于文档的上下文感知回答
+- **对话历史**：持久化会话记录
+- **来源追溯**：透明的引用追踪
+
+### ✍️ 智能笔记
+- **Notion 风格编辑器**：块编辑，支持 Markdown
+- **AI 写作助手**：润色、改写、解释、生成
+- **丰富格式**：标题（1-6 级）、列表、代码块、引用
+
+</td>
+<td width="50%">
+
+### 🎨 内容生成
+- **演示文稿**：从知识库生成可编辑 PPT
+- **思维导图**：Mermaid 图表，支持预览导出
+- **流程图表**：DrawIO 图表，内嵌编辑器
+- **知识播客**：脚本生成与 TTS 语音合成
+
+### 📊 学习工具
+- **闪卡**：自动生成学习卡片
+- **测试题**：选择题生成与评分
+- **深度研究**：联网搜索 + LLM 综合报告
+
+### 🔐 用户管理
+- **身份认证**：Supabase 邮箱 + OTP 验证
+- **多用户支持**：按用户隔离数据
+- **体验模式**：无需登录即可使用全部功能
+
+</td>
+</tr>
+</table>
 
 ---
 

diff --git a/fastapi_app/deep_research/react_agent.py b/fastapi_app/deep_research/react_agent.py
@@ -88,7 +88,6 @@ def call_server(self, msgs, planning_port, max_tries=3):
                     stop=["\n<tool_response>", "<tool_response>"],
                     temperature=self.llm_generate_cfg.get('temperature', 0.6),
                     top_p=self.llm_generate_cfg.get('top_p', 0.95),
-                    logprobs=True,
                     max_tokens=10000,
                     presence_penalty=self.llm_generate_cfg.get('presence_penalty', 1.1)
                 )

diff --git a/frontend_en/src/components/notes/AIPanel.tsx b/frontend_en/src/components/notes/AIPanel.tsx
@@ -131,7 +131,7 @@ export const AIPanel: React.FC<AIPanelProps> = ({
     <div className="mt-1 border border-accent-200 bg-accent-50/40 rounded-xl p-3 shadow-sm">
       {/* Source file selection - horizontal, small text */}
       {files.length > 0 && (
-        <BadgeGroup className="mb-2.5">
+        <BadgeGroup className="mb-2.5 max-h-24 overflow-y-auto">
           <span className="text-xs text-neutral-500 shrink-0 font-medium">Sources:</span>
           {files.map(f => (
             <button

diff --git a/frontend_en/src/components/notes/BlockEditor.tsx b/frontend_en/src/components/notes/BlockEditor.tsx
@@ -38,7 +38,7 @@ export const BlockEditor: React.FC<BlockEditorProps> = ({
   onToggleTodo,
   numberedIndex,
 }) => {
-  const inputRef = useRef<HTMLTextAreaElement | HTMLInputElement>(null);
+  const inputRef = useRef<HTMLTextAreaElement | HTMLInputElement | HTMLDivElement>(null);
   const fileInputRef = useRef<HTMLInputElement>(null);
   const [scale, setScale] = useState(block.scale || 100);
   const [showMenu, setShowMenu] = useState(false);
@@ -105,6 +105,18 @@ export const BlockEditor: React.FC<BlockEditorProps> = ({
         onTypeChange(block.id, 'todo', '');
         return;
       }
+      if (content.startsWith('###### ')) {
+        onTypeChange(block.id, 'heading6', content.slice(7));
+        return;
+      }
+      if (content.startsWith('##### ')) {
+        onTypeChange(block.id, 'heading5', content.slice(6));
+        return;
+      }
+      if (content.startsWith('#### ')) {
+        onTypeChange(block.id, 'heading4', content.slice(5));
+        return;
+      }
       if (content.startsWith('### ')) {
         onTypeChange(block.id, 'heading3', content.slice(4));
         return;
@@ -193,6 +205,39 @@ export const BlockEditor: React.FC<BlockEditorProps> = ({
             className="w-full outline-none bg-transparent text-xl font-semibold"
           />
         );
+      case 'heading4':
+        return (
+          <input
+            ref={inputRef as React.Ref<HTMLInputElement>}
+            value={block.content}
+            onChange={handleInput}
+            onKeyDown={handleKeyDown}
+            placeholder={placeholder}
+            className="w-full outline-none bg-transparent text-lg font-semibold"
+          />
+        );
+      case 'heading5':
+        return (
+          <input
+            ref={inputRef as React.Ref<HTMLInputElement>}
+            value={block.content}
+            onChange={handleInput}
+            onKeyDown={handleKeyDown}
+            placeholder={placeholder}
+            className="w-full outline-none bg-transparent text-base font-semibold"
+          />
+        );
+      case 'heading6':
+        return (
+          <input
+            ref={inputRef as React.Ref<HTMLInputElement>}
+            value={block.content}
+            onChange={handleInput}
+            onKeyDown={handleKeyDown}
+            placeholder={placeholder}
+            className="w-full outline-none bg-transparent text-sm font-semibold"
+          />
+        );
       case 'code':
         return (
           <textarea
@@ -245,7 +290,7 @@ export const BlockEditor: React.FC<BlockEditorProps> = ({
         return (
           <div className="flex items-start gap-2">
             <span className="mt-1 shrink-0 text-gray-500 min-w-[1.5rem] text-right">
-              {numberedIndex !== undefined ? `${numberedIndex}.` : '1.'}
+              {block.number !== undefined ? `${block.number}.` : numberedIndex !== undefined ? `${numberedIndex}.` : '1.'}
             </span>
             <textarea
               {...baseTextareaProps}