diff --git a/.DS_Store b/.DS_Store
index e9df439..c7e173b 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/dist.zip b/dist.zip
index e6fa54c..abee3cf 100644
Binary files a/dist.zip and b/dist.zip differ
diff --git a/src/components/admin/UserManagement.css b/src/components/admin/UserManagement.css
index 5aa8f13..f25393e 100644
--- a/src/components/admin/UserManagement.css
+++ b/src/components/admin/UserManagement.css
@@ -1,9 +1,16 @@
-/* UserManagement.css */
 .user-management .toolbar {
   display: flex;
   justify-content: space-between;
   align-items: center;
-  margin-bottom: 1.5rem;
+  margin-bottom: 2rem;
+}
+
+.user-management .toolbar h2 {
+  margin: 0;
+  flex-shrink: 0;
+  font-size: 1.5rem;
+  font-weight: 600;
+  color: #1e293b;
 }
 
 .users-table {
diff --git a/src/components/admin/UserManagement.jsx b/src/components/admin/UserManagement.jsx
index f634b2c..f29773c 100644
--- a/src/components/admin/UserManagement.jsx
+++ b/src/components/admin/UserManagement.jsx
@@ -18,9 +18,11 @@ const UserManagement = () => {
   const [processingUser, setProcessingUser] = useState(null);
   const [newUser, setNewUser] = useState({ username: '', caption: '', email: '', role_id: 2 });
   const [editingUser, setEditingUser] = useState(null);
+  const [roles, setRoles] = useState([]);
 
   useEffect(() => {
     fetchUsers();
+    fetchRoles();
   }, [page, pageSize]);
 
   const fetchUsers = async () => {
@@ -36,6 +38,20 @@ const UserManagement = () => {
     }
   };
 
+  const fetchRoles = async () => {
+    try {
+      const response = await apiClient.get(buildApiUrl(API_ENDPOINTS.USERS.ROLES));
+      setRoles(response.data);
+    } catch (err) {
+      console.error('Error fetching roles:', err);
+      // 如果无法获取角色列表，使用默认值
+      setRoles([
+        { role_id: 1, role_name: '平台管理员' },
+        { role_id: 2, role_name: '普通用户' }
+      ]);
+    }
+  };
+
   const handleAddUser = async (e) => {
     e.preventDefault();
     try {
@@ -141,7 +157,7 @@ const UserManagement = () => {
                   <td>{user.username}</td>
                   <td>{user.caption}</td>
                   <td>{user.email}</td>
-                  <td>{user.role_id === 1 ? '管理员' : '普通用户'}</td>
+                  <td>{user.role_name}</td>
                   <td>{new Date(user.created_at).toLocaleString()}</td>
                   <td className="action-cell">
                     <button className="action-btn" onClick={() => openEditModal(user)} title="修改"><Edit size={16} />修改</button>
@@ -184,8 +200,9 @@ const UserManagement = () => {
               <div className="form-group">
                 <label>角色</label>
                 <select className="form-input" value={newUser.role_id} onChange={(e) => setNewUser({...newUser, role_id: parseInt(e.target.value)})}>
-                  <option value={2}>普通用户</option>
-                  <option value={1}>管理员</option>
+                  {roles.map(role => (
+                    <option key={role.role_id} value={role.role_id}>{role.role_name}</option>
+                  ))}
                 </select>
               </div>
               <div className="info-note">
@@ -221,8 +238,9 @@ const UserManagement = () => {
               <div className="form-group">
                 <label>角色</label>
                 <select className="form-input" value={editingUser.role_id} onChange={(e) => setEditingUser({...editingUser, role_id: parseInt(e.target.value)})}>
-                  <option value={2}>普通用户</option>
-                  <option value={1}>管理员</option>
+                  {roles.map(role => (
+                    <option key={role.role_id} value={role.role_id}>{role.role_name}</option>
+                  ))}
                 </select>
               </div>
               <div className="modal-actions">
diff --git a/src/config/api.js b/src/config/api.js
index 69d0c3b..88d25fb 100644
--- a/src/config/api.js
+++ b/src/config/api.js
@@ -16,7 +16,8 @@ const API_CONFIG = {
       DELETE: (userId) => `/api/users/${userId}`,
       RESET_PASSWORD: (userId) => `/api/users/${userId}/reset-password`,
       DETAIL: (userId) => `/api/users/${userId}`,
-      UPDATE_PASSWORD: (userId) => `/api/users/${userId}/password`
+      UPDATE_PASSWORD: (userId) => `/api/users/${userId}/password`,
+      ROLES: '/api/roles'
     },
     MEETINGS: {
       LIST: '/api/meetings',
diff --git a/src/pages/AdminManagement.css b/src/pages/AdminManagement.css
index a11ce56..cf4d98b 100644
--- a/src/pages/AdminManagement.css
+++ b/src/pages/AdminManagement.css
@@ -78,6 +78,7 @@
   transition: all 0.3s ease;
   font-weight: 500;
   outline: none;
+  border-radius: 0px;
 }
 
 .tab-btn:hover {
diff --git a/src/pages/CreateMeeting.jsx b/src/pages/CreateMeeting.jsx
index 7c94092..d1dbf03 100644
--- a/src/pages/CreateMeeting.jsx
+++ b/src/pages/CreateMeeting.jsx
@@ -26,8 +26,9 @@ const CreateMeeting = ({ user }) => {
 
   const fetchUsers = async () => {
     try {
-      const response = await apiClient.get(buildApiUrl(API_ENDPOINTS.USERS.LIST));
-      setAvailableUsers(response.data.filter(u => u.user_id !== user.user_id));
+      // 获取所有用户，设置较大的size参数
+      const response = await apiClient.get(buildApiUrl(`${API_ENDPOINTS.USERS.LIST}?page=1&size=1000`));
+      setAvailableUsers(response.data.users.filter(u => u.user_id !== user.user_id));
     } catch (err) {
       console.error('Error fetching users:', err);
     }
diff --git a/src/pages/Dashboard.css b/src/pages/Dashboard.css
index aaa1266..e40de84 100644
--- a/src/pages/Dashboard.css
+++ b/src/pages/Dashboard.css
@@ -41,8 +41,9 @@
 }
 
 .welcome-text {
-  color: #64748b;
-  font-weight: 500;
+  color: #334155;
+  font-weight: 600;
+  font-size: 1rem;
 }
 
 .logout-btn {
@@ -313,6 +314,14 @@
   align-items: center;
   cursor: pointer;
   gap: 0.5rem;
+  padding: 0.5rem 1rem;
+  border-radius: 8px;
+  transition: all 0.3s ease;
+  background: transparent;
+}
+
+.user-menu-trigger:hover {
+  background: #f1f5f9;
 }
 
 .dropdown-menu {
diff --git a/src/pages/EditMeeting.css b/src/pages/EditMeeting.css
index 704c8cc..9c41801 100644
--- a/src/pages/EditMeeting.css
+++ b/src/pages/EditMeeting.css
@@ -681,5 +681,4 @@
 .modal-actions .btn-submit:disabled {
   opacity: 0.7;
   cursor: not-allowed;
-}
 }
\ No newline at end of file
diff --git a/src/pages/EditMeeting.jsx b/src/pages/EditMeeting.jsx
index 8d71cb6..b9604f3 100644
--- a/src/pages/EditMeeting.jsx
+++ b/src/pages/EditMeeting.jsx
@@ -68,8 +68,9 @@ const EditMeeting = ({ user }) => {
 
   const fetchUsers = async () => {
     try {
-      const response = await apiClient.get(buildApiUrl(API_ENDPOINTS.USERS.LIST));
-      setAvailableUsers(response.data.filter(u => u.user_id !== user.user_id));
+      // 获取所有用户，设置较大的size参数
+      const response = await apiClient.get(buildApiUrl(`${API_ENDPOINTS.USERS.LIST}?page=1&size=1000`));
+      setAvailableUsers(response.data.users.filter(u => u.user_id !== user.user_id));
     } catch (err) {
       console.error('Error fetching users:', err);
     }
diff --git a/src/pages/HomePage.jsx b/src/pages/HomePage.jsx
index 00f9f87..673d015 100644
--- a/src/pages/HomePage.jsx
+++ b/src/pages/HomePage.jsx
@@ -60,9 +60,9 @@ const HomePage = ({ onLogin }) => {
       {/* Hero Section */}
       <section className="hero">
         <div className="hero-content">
-          <h1 className="hero-title">智慧会议，让会议更高效</h1>
+          <h1 className="hero-title">“慧会议” 让会议更高效</h1>
           <p className="hero-subtitle">
-            通过AI技术，将会议音视频转化为结构化信息，提升团队协作效率
+            通过AI将会议音频进行人声分离并自动总结，提升团队协作效率。
           </p>
           <button 
             className="cta-button"