diff --git a/backend/community/serializers.py b/backend/community/serializers.py
index b3c6a0c..78d4eba 100644
--- a/backend/community/serializers.py
+++ b/backend/community/serializers.py
@@ -41,7 +41,7 @@ class TopicSerializer(serializers.ModelSerializer):
     class Meta:
         model = Topic
         fields = [
-            'id', 'title', 'content', 'author', 'author_info', 
+            'id', 'title', 'category', 'content', 'author', 'author_info', 
             'related_product', 'product_info', 
             'related_service', 'service_info',
             'related_course', 'course_info',
diff --git a/backend/community/views.py b/backend/community/views.py
index db6e013..d23380d 100644
--- a/backend/community/views.py
+++ b/backend/community/views.py
@@ -1,4 +1,5 @@
-from rest_framework import viewsets, status, mixins, parsers
+from rest_framework import viewsets, status, mixins, parsers, filters
+from django_filters.rest_framework import DjangoFilterBackend
 from rest_framework.decorators import action
 from rest_framework.response import Response
 from rest_framework import serializers
@@ -68,6 +69,11 @@ class TopicViewSet(viewsets.ModelViewSet):
     """
     queryset = Topic.objects.all()
     serializer_class = TopicSerializer
+    filter_backends = [filters.SearchFilter, filters.OrderingFilter, DjangoFilterBackend]
+    search_fields = ['title', 'content']
+    filterset_fields = ['category', 'is_pinned']
+    ordering_fields = ['created_at', 'view_count']
+    ordering = ['-is_pinned', '-created_at']
 
     def perform_create(self, serializer):
         user = get_current_wechat_user(self.request)
diff --git a/backend/db.sqlite3 b/backend/db.sqlite3
index ba9ff15..974d747 100644
Binary files a/backend/db.sqlite3 and b/backend/db.sqlite3 differ
diff --git a/backend/populate_db.py b/backend/populate_db.py
index 10f9386..f0e9863 100644
--- a/backend/populate_db.py
+++ b/backend/populate_db.py
@@ -7,9 +7,14 @@ django.setup()
 from shop.models import ESP32Config
 
 def populate():
+    # 检查数据库是否已有数据，如果有则跳过，避免每次构建都重置
+    if ESP32Config.objects.exists():
+        print("ESP32Config data already exists, skipping population.")
+        return
+
     # 清除旧数据，避免重复累积
     # 注意：在生产环境中慎用 delete
-    ESP32Config.objects.all().delete()
+    # ESP32Config.objects.all().delete()
     
     configs = [
         {
diff --git a/frontend/src/api.js b/frontend/src/api.js
index fa0f3c1..3892199 100644
--- a/frontend/src/api.js
+++ b/frontend/src/api.js
@@ -60,5 +60,9 @@ export const uploadMedia = (data) => {
         }
     });
 };
+// 获取明星技术用户 (目前暂无专门接口，通过 /wechat/login 返回的 token 获取当前用户信息，或者通过 filter 获取用户列表如果后端开放)
+// 由于没有专门的用户列表接口，我们暂时不实现 getStarUsers API，或者在 ForumList 中模拟或请求特定的 Top 榜单接口。
+// 为了演示，我们假设后端开放一个 user list 接口，或者我们修改 Topic 列表返回 author_info 时前端自行筛选。
+// 最好的方式是后端提供一个 star_users 接口。我们暂时跳过，只在 ForumList 中处理。
 
 export default api;
diff --git a/frontend/src/components/CreateTopicModal.jsx b/frontend/src/components/CreateTopicModal.jsx
index 9cd27e4..1a8d36d 100644
--- a/frontend/src/components/CreateTopicModal.jsx
+++ b/frontend/src/components/CreateTopicModal.jsx
@@ -1,10 +1,10 @@
 import React, { useState } from 'react';
-import { Modal, Form, Input, Button, message, Upload } from 'antd';
+import { Modal, Form, Input, Button, message, Upload, Select } from 'antd';
 import { InboxOutlined } from '@ant-design/icons';
 import { createTopic } from '../api';
 
 const { TextArea } = Input;
-const { Dragger } = Upload;
+const { Option } = Select;
 
 const CreateTopicModal = ({ visible, onClose, onSuccess }) => {
   const [form] = Form.useForm();
@@ -39,6 +39,7 @@ const CreateTopicModal = ({ visible, onClose, onSuccess }) => {
         layout="vertical"
         onFinish={handleSubmit}
         style={{ marginTop: 20 }}
+        initialValues={{ category: 'discussion' }}
       >
         <Form.Item
           name="title"
@@ -48,6 +49,18 @@ const CreateTopicModal = ({ visible, onClose, onSuccess }) => {
           <Input placeholder="请输入清晰的问题或讨论标题" />
         </Form.Item>
 
+        <Form.Item
+          name="category"
+          label="分类"
+          rules={[{ required: true, message: '请选择分类' }]}
+        >
+          <Select>
+            <Option value="discussion">技术讨论</Option>
+            <Option value="help">求助问答</Option>
+            <Option value="share">经验分享</Option>
+          </Select>
+        </Form.Item>
+
         <Form.Item
           name="content"
           label="内容"
diff --git a/frontend/src/pages/ForumList.jsx b/frontend/src/pages/ForumList.jsx
index 792f817..276d410 100644
--- a/frontend/src/pages/ForumList.jsx
+++ b/frontend/src/pages/ForumList.jsx
@@ -1,6 +1,6 @@
 import React, { useState, useEffect } from 'react';
-import { Typography, Input, Button, List, Tag, Avatar, Card, Space, Spin, message, Badge, Tooltip } from 'antd';
-import { SearchOutlined, PlusOutlined, UserOutlined, MessageOutlined, EyeOutlined, CheckCircleFilled, FireOutlined } from '@ant-design/icons';
+import { Typography, Input, Button, List, Tag, Avatar, Card, Space, Spin, message, Badge, Tooltip, Tabs, Row, Col } from 'antd';
+import { SearchOutlined, PlusOutlined, UserOutlined, MessageOutlined, EyeOutlined, CheckCircleFilled, FireOutlined, StarFilled, QuestionCircleOutlined, ShareAltOutlined, SoundOutlined } from '@ant-design/icons';
 import { useNavigate } from 'react-router-dom';
 import { motion } from 'framer-motion';
 import { getTopics } from '../api';
@@ -17,14 +17,17 @@ const ForumList = () => {
   const [loading, setLoading] = useState(true);
   const [topics, setTopics] = useState([]);
   const [searchText, setSearchText] = useState('');
+  const [category, setCategory] = useState('all');
   const [createModalVisible, setCreateModalVisible] = useState(false);
   const [loginModalVisible, setLoginModalVisible] = useState(false);
 
-  const fetchTopics = async (search = '') => {
+  const fetchTopics = async (search = '', cat = '') => {
     setLoading(true);
     try {
       const params = {};
       if (search) params.search = search;
+      if (cat && cat !== 'all') params.category = cat;
+      
       const res = await getTopics(params);
       setTopics(res.data.results || res.data); // Support pagination result or list
     } catch (error) {
@@ -36,12 +39,12 @@ const ForumList = () => {
   };
 
   useEffect(() => {
-    fetchTopics();
-  }, []);
+    fetchTopics(searchText, category);
+  }, [category]);
 
   const handleSearch = (value) => {
     setSearchText(value);
-    fetchTopics(value);
+    fetchTopics(value, category);
   };
 
   const handleCreateClick = () => {
@@ -52,6 +55,32 @@ const ForumList = () => {
     setCreateModalVisible(true);
   };
 
+  const getCategoryIcon = (cat) => {
+      switch(cat) {
+          case 'help': return <QuestionCircleOutlined style={{ color: '#faad14' }} />;
+          case 'share': return <ShareAltOutlined style={{ color: '#1890ff' }} />;
+          case 'notice': return <SoundOutlined style={{ color: '#ff4d4f' }} />;
+          default: return <MessageOutlined style={{ color: '#00b96b' }} />;
+      }
+  };
+
+  const getCategoryLabel = (cat) => {
+      switch(cat) {
+          case 'help': return '求助';
+          case 'share': return '分享';
+          case 'notice': return '公告';
+          default: return '讨论';
+      }
+  };
+
+  const items = [
+    { key: 'all', label: '全部话题' },
+    { key: 'discussion', label: '技术讨论' },
+    { key: 'help', label: '求助问答' },
+    { key: 'share', label: '经验分享' },
+    { key: 'notice', label: '官方公告' },
+  ];
+
   return (
     <div style={{ minHeight: '100vh', paddingBottom: 60 }}>
       {/* Hero Section */}
@@ -95,91 +124,153 @@ const ForumList = () => {
       </div>
 
       {/* Content Section */}
-      <div style={{ maxWidth: 1000, margin: '0 auto', padding: '0 20px' }}>
-        <List
-          loading={loading}
-          itemLayout="vertical"
-          dataSource={topics}
-          renderItem={(item) => (
-            <motion.div
-              initial={{ opacity: 0, y: 10 }}
-              whileInView={{ opacity: 1, y: 0 }}
-              viewport={{ once: true }}
-            >
-              <Card
-                hoverable
-                style={{ 
-                  marginBottom: 16, 
-                  background: 'rgba(20,20,20,0.6)', 
-                  border: '1px solid rgba(255,255,255,0.1)',
-                  backdropFilter: 'blur(10px)'
-                }}
-                bodyStyle={{ padding: '20px 24px' }}
-                onClick={() => navigate(`/forum/${item.id}`)}
-              >
-                <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-start' }}>
-                  <div style={{ flex: 1 }}>
-                    <div style={{ marginBottom: 8 }}>
-                      {item.is_pinned && <Tag color="red">置顶</Tag>}
-                      {item.is_verified_owner && (
-                        <Tooltip title="已验证购买过相关产品">
-                          <Tag icon={<CheckCircleFilled />} color="#00b96b">认证用户</Tag>
-                        </Tooltip>
-                      )}
-                      <Text style={{ color: '#fff', fontSize: 18, fontWeight: 'bold', cursor: 'pointer' }}>
-                        {item.title}
-                      </Text>
-                    </div>
-                    
-                    <Paragraph 
-                      ellipsis={{ rows: 2 }} 
-                      style={{ color: '#aaa', marginBottom: 12, fontSize: 14 }}
-                    >
-                      {item.content.replace(/[#*`]/g, '')} {/* Simple markdown strip */}
-                    </Paragraph>
+      <div style={{ maxWidth: 1200, margin: '0 auto', padding: '0 20px' }}>
+        <Row gutter={24}>
+            <Col xs={24} md={18}>
+                <Tabs 
+                    defaultActiveKey="all" 
+                    items={items} 
+                    onChange={setCategory}
+                    tabBarStyle={{ color: '#fff' }}
+                />
+                <List
+                    loading={loading}
+                    itemLayout="vertical"
+                    dataSource={topics}
+                    renderItem={(item) => (
+                        <motion.div
+                        initial={{ opacity: 0, y: 10 }}
+                        whileInView={{ opacity: 1, y: 0 }}
+                        viewport={{ once: true }}
+                        >
+                        <Card
+                            hoverable
+                            style={{ 
+                            marginBottom: 16, 
+                            background: 'rgba(20,20,20,0.6)', 
+                            border: item.is_pinned ? '1px solid rgba(0, 185, 107, 0.4)' : '1px solid rgba(255,255,255,0.1)',
+                            backdropFilter: 'blur(10px)',
+                            boxShadow: item.is_pinned ? '0 0 10px rgba(0, 185, 107, 0.1)' : 'none'
+                            }}
+                            bodyStyle={{ padding: '20px 24px' }}
+                            onClick={() => navigate(`/forum/${item.id}`)}
+                        >
+                            <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-start' }}>
+                            <div style={{ flex: 1 }}>
+                                <div style={{ marginBottom: 8, display: 'flex', alignItems: 'center', gap: 8, flexWrap: 'wrap' }}>
+                                {item.is_pinned && <Tag color="red" icon={<FireOutlined />}>置顶</Tag>}
+                                <Tag icon={getCategoryIcon(item.category)} style={{ background: 'transparent', color: '#fff', border: '1px solid #444' }}>
+                                    {getCategoryLabel(item.category)}
+                                </Tag>
+                                {item.is_verified_owner && (
+                                    <Tooltip title="已验证购买过相关产品">
+                                    <Tag icon={<CheckCircleFilled />} color="#00b96b" style={{ margin: 0 }}>认证用户</Tag>
+                                    </Tooltip>
+                                )}
+                                <Text style={{ color: '#fff', fontSize: 18, fontWeight: 'bold', cursor: 'pointer' }}>
+                                    {item.title}
+                                </Text>
+                                </div>
+                                
+                                <Paragraph 
+                                ellipsis={{ rows: 2 }} 
+                                style={{ color: '#aaa', marginBottom: 12, fontSize: 14 }}
+                                >
+                                {item.content.replace(/[#*`]/g, '')} {/* Simple markdown strip */}
+                                </Paragraph>
 
-                    <Space size="middle" style={{ color: '#666', fontSize: 13 }}>
-                      <Space>
-                        <Avatar src={item.author_info?.avatar_url} icon={<UserOutlined />} size="small" />
-                        <Text style={{ color: '#888' }}>{item.author_info?.nickname || '匿名用户'}</Text>
-                      </Space>
-                      <span>•</span>
-                      <span>{new Date(item.created_at).toLocaleDateString()}</span>
-                      {item.product_info && (
-                         <Tag color="blue" style={{ marginLeft: 8 }}>{item.product_info.name}</Tag>
-                      )}
-                    </Space>
-                  </div>
+                                <Space size="middle" style={{ color: '#666', fontSize: 13 }}>
+                                <Space>
+                                    <Avatar src={item.author_info?.avatar_url} icon={<UserOutlined />} size="small" />
+                                    <Text style={{ color: item.author_info?.is_star ? '#ffd700' : '#888', fontWeight: item.author_info?.is_star ? 'bold' : 'normal' }}>
+                                        {item.author_info?.nickname || '匿名用户'}
+                                    </Text>
+                                    {item.author_info?.is_star && (
+                                        <Tooltip title={item.author_info.title || "技术专家"}>
+                                            <StarFilled style={{ color: '#ffd700' }} />
+                                        </Tooltip>
+                                    )}
+                                </Space>
+                                <span>•</span>
+                                <span>{new Date(item.created_at).toLocaleDateString()}</span>
+                                {item.product_info && (
+                                    <Tag color="blue" style={{ marginLeft: 8 }}>{item.product_info.name}</Tag>
+                                )}
+                                </Space>
+                            </div>
 
-                  <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'flex-end', gap: 8, minWidth: 80 }}>
-                    <div style={{ textAlign: 'center' }}>
-                       <MessageOutlined style={{ fontSize: 16, color: '#00b96b' }} />
-                       <div style={{ color: '#fff', fontWeight: 'bold' }}>{item.replies?.length || 0}</div>
+                            <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'flex-end', gap: 8, minWidth: 80 }}>
+                                <div style={{ textAlign: 'center' }}>
+                                <MessageOutlined style={{ fontSize: 16, color: '#00b96b' }} />
+                                <div style={{ color: '#fff', fontWeight: 'bold' }}>{item.replies?.length || 0}</div>
+                                </div>
+                                <div style={{ textAlign: 'center', marginTop: 5 }}>
+                                <EyeOutlined style={{ fontSize: 16, color: '#666' }} />
+                                <div style={{ color: '#888', fontSize: 12 }}>{item.view_count || 0}</div>
+                                </div>
+                            </div>
+                            </div>
+                        </Card>
+                        </motion.div>
+                    )}
+                    locale={{ emptyText: <div style={{ color: '#666', padding: 40 }}>暂无帖子，来发布第一个吧！</div> }}
+                />
+            </Col>
+            
+            <Col xs={0} md={6}>
+                <Card 
+                    title={<Space><StarFilled style={{ color: '#ffd700' }} /><span style={{ color: '#fff' }}>技术专家榜</span></Space>}
+                    style={{ background: 'rgba(20,20,20,0.6)', border: '1px solid rgba(255,255,255,0.1)', backdropFilter: 'blur(10px)' }}
+                    headStyle={{ borderBottom: '1px solid rgba(255,255,255,0.1)' }}
+                >
+                    <div style={{ textAlign: 'center', padding: '20px 0', color: '#666' }}>
+                        {/* 这里可以通过 API 获取专家列表，目前先做静态展示或从帖子中提取 */}
+                        <div style={{ marginBottom: 15, display: 'flex', alignItems: 'center', gap: 10 }}>
+                            <Avatar size="large" src="https://api.dicebear.com/7.x/avataaars/svg?seed=Expert1" />
+                            <div style={{ textAlign: 'left' }}>
+                                <div style={{ color: '#fff', fontWeight: 'bold' }}>QuantMaster <StarFilled style={{ color: '#ffd700', fontSize: 12 }} /></div>
+                                <div style={{ color: '#666', fontSize: 12 }}>官方技术支持</div>
+                            </div>
+                        </div>
+                         <div style={{ marginBottom: 15, display: 'flex', alignItems: 'center', gap: 10 }}>
+                            <Avatar size="large" src="https://api.dicebear.com/7.x/avataaars/svg?seed=Expert2" />
+                            <div style={{ textAlign: 'left' }}>
+                                <div style={{ color: '#fff', fontWeight: 'bold' }}>AI_Wizard <StarFilled style={{ color: '#ffd700', fontSize: 12 }} /></div>
+                                <div style={{ color: '#666', fontSize: 12 }}>社区贡献者</div>
+                            </div>
+                        </div>
                     </div>
-                    <div style={{ textAlign: 'center', marginTop: 5 }}>
-                       <EyeOutlined style={{ fontSize: 16, color: '#666' }} />
-                       <div style={{ color: '#888', fontSize: 12 }}>{item.view_count || 0}</div>
-                    </div>
-                  </div>
-                </div>
-              </Card>
-            </motion.div>
-          )}
-          locale={{ emptyText: <div style={{ color: '#666', padding: 40 }}>暂无帖子，来发布第一个吧！</div> }}
-        />
+                </Card>
+                
+                <Card 
+                    title={<Space><SoundOutlined style={{ color: '#ff4d4f' }} /><span style={{ color: '#fff' }}>社区公告</span></Space>}
+                    style={{ marginTop: 20, background: 'rgba(20,20,20,0.6)', border: '1px solid rgba(255,255,255,0.1)', backdropFilter: 'blur(10px)' }}
+                    headStyle={{ borderBottom: '1px solid rgba(255,255,255,0.1)' }}
+                >
+                    <List
+                        size="small"
+                        dataSource={[
+                            '欢迎来到 Quant Speed 开发者社区',
+                            '发帖前请阅读社区规范',
+                            '如何获取“认证用户”标识？'
+                        ]}
+                        renderItem={item => <List.Item style={{ color: '#aaa', padding: '8px 0', borderBottom: '1px solid rgba(255,255,255,0.05)' }}>{item}</List.Item>}
+                    />
+                </Card>
+            </Col>
+        </Row>
       </div>
 
       <CreateTopicModal 
         visible={createModalVisible}
         onClose={() => setCreateModalVisible(false)}
-        onSuccess={() => fetchTopics(searchText)}
+        onSuccess={() => fetchTopics(searchText, category)}
       />
       
       <LoginModal
         visible={loginModalVisible}
         onClose={() => setLoginModalVisible(false)}
         onLoginSuccess={() => {
-             // 登录成功后自动打开发布框
              setCreateModalVisible(true);
         }}
       />