diff --git a/deploy_multiuser.sh b/deploy_multiuser.sh
new file mode 100644
index 0000000..d03fb9c
--- /dev/null
+++ b/deploy_multiuser.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+# 多用户系统 - 部署脚本
+
+set -e
+
+echo "======================================"
+echo "🚀 部署多用户日记系统"
+echo "======================================"
+
+cd /home/ubuntu/diary-system
+
+# 1. 安装依赖
+echo "📦 安装 Python 依赖..."
+cd backend
+pip3 install -r requirements.txt -q 2>/dev/null || pip3 install -r requirements.txt --break-system-packages -q
+
+# 2. 数据库迁移
+echo "🗄️  执行数据库迁移..."
+python3 manage.py migrate --run-syncdb
+
+# 3. 迁移现有数据到默认用户
+echo "📦 迁移现有数据..."
+python3 ../migrate_data.py
+
+# 4. 重启 Gunicorn
+echo "⚙️  重启 Gunicorn..."
+sudo systemctl restart diary-system
+
+# 5. 检查服务状态
+echo ""
+echo "🔍 检查服务状态..."
+sudo systemctl is-active diary-system > /dev/null && echo "   ✅ Gunicorn 运行中" || echo "   ❌ Gunicorn 未运行"
+
+# 6. 测试访问
+echo ""
+echo "🧪 测试访问..."
+sleep 2
+if curl -s http://127.0.0.1:8002/api/auth/me/ > /dev/null 2>&1; then
+    echo "   ✅ 认证 API 正常"
+else
+    echo "   ⚠️  认证 API 可能有问题"
+fi
+
+echo ""
+echo "======================================"
+echo "✅ 部署完成！"
+echo "======================================"
+echo ""
+echo "📍 访问地址：http://cssc.datalibstar.com:8001/"
+echo ""
+echo "📝 默认用户："
+echo "   用户名：beijixing"
+echo "   密码：beijixing123"
+echo ""
+echo "💡 其他用户可以注册新账号使用"
+echo ""
diff --git a/frontend-react/public/index.html b/frontend-react/public/index.html
new file mode 100644
index 0000000..bce28cc
--- /dev/null
+++ b/frontend-react/public/index.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="theme-color" content="#667eea" />
+    <meta name="description" content="码神的日记系统 - 记录每天的进步与成长" />
+    <title>码神的日记系统</title>
+  </head>
+  <body>
+    <noscript>需要启用 JavaScript 才能运行此应用。</noscript>
+    <div id="root"></div>
+  </body>
+</html>
diff --git a/frontend/dashboard.html b/frontend/dashboard.html
new file mode 100644
index 0000000..c4e8b2f
--- /dev/null
+++ b/frontend/dashboard.html
@@ -0,0 +1,125 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>码神的日记系统 - 仪表盘</title>
+    <style>
+        * { margin: 0; padding: 0; box-sizing: border-box; }
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            min-height: 100vh;
+            padding: 20px;
+        }
+        .container { max-width: 1200px; margin: 0 auto; }
+        header {
+            text-align: center;
+            color: white;
+            margin-bottom: 30px;
+        }
+        header h1 { font-size: 2.5em; margin-bottom: 10px; }
+        .user-info {
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+            background: white;
+            padding: 15px 20px;
+            border-radius: 10px;
+            margin-bottom: 20px;
+        }
+        .logout-btn {
+            background: #667eea;
+            color: white;
+            border: none;
+            padding: 8px 16px;
+            border-radius: 5px;
+            cursor: pointer;
+        }
+        .logout-btn:hover { background: #5568d3; }
+        .content {
+            background: white;
+            padding: 40px;
+            border-radius: 10px;
+            text-align: center;
+        }
+        .content h2 { color: #333; margin-bottom: 20px; }
+        .content p { color: #666; margin-bottom: 30px; }
+        .feature-list {
+            text-align: left;
+            max-width: 600px;
+            margin: 0 auto;
+        }
+        .feature-item {
+            padding: 15px;
+            margin: 10px 0;
+            background: #f8f9fa;
+            border-radius: 5px;
+            border-left: 4px solid #667eea;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <header>
+            <h1>⚡ 码神的日记系统</h1>
+            <p>记录每天的进步与成长</p>
+        </header>
+
+        <div class="user-info">
+            <span>👤 欢迎，<strong id="username">用户</strong></span>
+            <button class="logout-btn" onclick="logout()">登出</button>
+        </div>
+
+        <div class="content">
+            <h2>🎉 多用户系统已上线！</h2>
+            <p>你现在可以：</p>
+            <div class="feature-list">
+                <div class="feature-item">
+                    <strong>📝 写日记</strong> - 记录每天的任务、学到的东西、反思和进步
+                </div>
+                <div class="feature-item">
+                    <strong>📅 日历视图</strong> - 通过日历快速查看历史日记
+                </div>
+                <div class="feature-item">
+                    <strong>💡 经验总结</strong> - 记录遇到的问题和解决方案
+                </div>
+                <div class="feature-item">
+                    <strong>📊 任务管理</strong> - 追踪任务进展和完成率
+                </div>
+                <div class="feature-item">
+                    <strong>🔒 数据隔离</strong> - 每个用户的数据完全独立
+                </div>
+            </div>
+            <p style="margin-top: 30px; color: #999;">
+                React 前端正在构建中，当前使用简化版界面<br>
+                完整功能即将上线...
+            </p>
+        </div>
+    </div>
+
+    <script>
+        // 检查登录状态
+        fetch('/api/auth/me/')
+            .then(res => {
+                if (!res.ok) {
+                    window.location.href = '/';
+                }
+                return res.json();
+            })
+            .then(data => {
+                document.getElementById('username').textContent = data.username;
+            })
+            .catch(() => {
+                window.location.href = '/';
+            });
+
+        function logout() {
+            fetch('/api/auth/logout/', { method: 'POST' })
+                .then(() => {
+                    window.location.href = '/';
+                });
+        }
+    </script>
+</body>
+</html>
diff --git a/frontend/login.html b/frontend/login.html
new file mode 100644
index 0000000..95a63d2
--- /dev/null
+++ b/frontend/login.html
@@ -0,0 +1,149 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>码神的日记系统 - 登录</title>
+    <style>
+        * { margin: 0; padding: 0; box-sizing: border-box; }
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            min-height: 100vh;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            padding: 20px;
+        }
+        .auth-card {
+            background: white;
+            padding: 40px;
+            border-radius: 10px;
+            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
+            width: 100%;
+            max-width: 400px;
+        }
+        .auth-card h1 {
+            color: #667eea;
+            font-size: 2em;
+            text-align: center;
+            margin-bottom: 10px;
+        }
+        .auth-card h2 {
+            color: #333;
+            font-size: 1.5em;
+            text-align: center;
+            margin-bottom: 30px;
+        }
+        .form-group {
+            margin-bottom: 20px;
+        }
+        .form-group label {
+            display: block;
+            color: #555;
+            font-weight: 500;
+            margin-bottom: 8px;
+        }
+        .form-group input {
+            width: 100%;
+            padding: 12px;
+            border: 1px solid #ddd;
+            border-radius: 5px;
+            font-size: 1em;
+        }
+        .form-group input:focus {
+            outline: none;
+            border-color: #667eea;
+        }
+        .btn-primary {
+            width: 100%;
+            padding: 12px;
+            background: linear-gradient(135deg, #667eea, #764ba2);
+            color: white;
+            border: none;
+            border-radius: 5px;
+            font-size: 1.1em;
+            font-weight: 600;
+            cursor: pointer;
+        }
+        .btn-primary:hover {
+            opacity: 0.9;
+        }
+        .error {
+            background: #fee;
+            color: #c00;
+            padding: 10px;
+            border-radius: 5px;
+            margin-bottom: 20px;
+            text-align: center;
+        }
+        .success {
+            background: #efe;
+            color: #0a0;
+            padding: 10px;
+            border-radius: 5px;
+            margin-bottom: 20px;
+            text-align: center;
+        }
+    </style>
+</head>
+<body>
+    <div class="auth-card">
+        <h1>⚡ 码神的日记系统</h1>
+        <h2>登录</h2>
+        
+        <div id="message"></div>
+        
+        <form id="loginForm">
+            <div class="form-group">
+                <label>用户名</label>
+                <input type="text" id="username" required placeholder="请输入用户名" />
+            </div>
+            
+            <div class="form-group">
+                <label>密码</label>
+                <input type="password" id="password" required placeholder="请输入密码" />
+            </div>
+            
+            <button type="submit" class="btn-primary">登录</button>
+        </form>
+        
+        <p style="text-align: center; margin-top: 20px; color: #666;">
+            默认账号：beijixing / beijixing123
+        </p>
+    </div>
+
+    <script>
+        const API_BASE = '/api';
+
+        document.getElementById('loginForm').addEventListener('submit', async (e) => {
+            e.preventDefault();
+            
+            const username = document.getElementById('username').value;
+            const password = document.getElementById('password').value;
+            const messageDiv = document.getElementById('message');
+            
+            try {
+                const res = await fetch(`${API_BASE}/auth/login/`, {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({ username, password })
+                });
+                
+                const data = await res.json();
+                
+                if (res.ok) {
+                    messageDiv.innerHTML = `<div class="success">✅ 登录成功！正在跳转...</div>`;
+                    setTimeout(() => {
+                        window.location.href = '/dashboard.html';
+                    }, 1000);
+                } else {
+                    messageDiv.innerHTML = `<div class="error">❌ ${data.message || '登录失败'}</div>`;
+                }
+            } catch (err) {
+                messageDiv.innerHTML = `<div class="error">❌ 网络错误：${err.message}</div>`;
+            }
+        });
+    </script>
+</body>
+</html>
