diff --git a/proxy/index.go b/proxy/index.go
new file mode 100644
index 0000000..675bd19
--- /dev/null
+++ b/proxy/index.go
@@ -0,0 +1,263 @@
+// proxy/index.go
+package proxy
+
+import (
+    "net/http"
+)
+
+func ServeIndexPage(w http.ResponseWriter, r *http.Request) {
+    html := `<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Secure Site Proxy</title>
+    <style>
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+        }
+        
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            min-height: 100vh;
+            display: flex;
+            flex-direction: column;
+            align-items: center;
+            justify-content: center;
+            padding: 20px;
+        }
+        
+        .container {
+            background: white;
+            padding: 40px;
+            border-radius: 15px;
+            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
+            width: 100%;
+            max-width: 700px;
+        }
+        
+        .header {
+            text-align: center;
+            margin-bottom: 30px;
+        }
+        
+        .header h1 {
+            font-size: 32px;
+            color: #333;
+            margin-bottom: 10px;
+        }
+        
+        .header p {
+            color: #666;
+            font-size: 14px;
+        }
+        
+        .form-group {
+            margin-bottom: 20px;
+        }
+        
+        label {
+            display: block;
+            margin-bottom: 8px;
+            color: #555;
+            font-weight: 500;
+            font-size: 14px;
+        }
+        
+        .input-wrapper {
+            position: relative;
+            display: flex;
+            gap: 10px;
+        }
+        
+        input[type="url"] {
+            flex: 1;
+            padding: 14px 16px;
+            border: 2px solid #e0e0e0;
+            border-radius: 8px;
+            font-size: 15px;
+            transition: all 0.3s;
+        }
+        
+        input[type="url"]:focus {
+            outline: none;
+            border-color: #667eea;
+            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
+        }
+        
+        button {
+            padding: 14px 30px;
+            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
+            color: white;
+            border: none;
+            border-radius: 8px;
+            font-size: 15px;
+            font-weight: 600;
+            cursor: pointer;
+            transition: all 0.3s;
+            white-space: nowrap;
+        }
+        
+        button:hover {
+            transform: translateY(-2px);
+            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
+        }
+        
+        button:active {
+            transform: translateY(0);
+        }
+        
+        .info-box {
+            background: #f8f9fa;
+            border-left: 4px solid #667eea;
+            padding: 15px;
+            border-radius: 5px;
+            margin-top: 20px;
+        }
+        
+        .info-box h3 {
+            font-size: 14px;
+            color: #333;
+            margin-bottom: 8px;
+        }
+        
+        .info-box ul {
+            list-style: none;
+            padding-left: 0;
+        }
+        
+        .info-box li {
+            font-size: 13px;
+            color: #666;
+            margin-bottom: 5px;
+            padding-left: 20px;
+            position: relative;
+        }
+        
+        .info-box li:before {
+            content: "✓";
+            position: absolute;
+            left: 0;
+            color: #667eea;
+            font-weight: bold;
+        }
+        
+        .footer {
+            margin-top: 20px;
+            text-align: center;
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+        }
+        
+        .footer a {
+            color: #667eea;
+            text-decoration: none;
+            font-size: 14px;
+            transition: color 0.3s;
+        }
+        
+        .footer a:hover {
+            color: #764ba2;
+        }
+        
+        .stats {
+            font-size: 12px;
+            color: #999;
+        }
+        
+        @media (max-width: 600px) {
+            .container {
+                padding: 25px;
+            }
+            
+            .header h1 {
+                font-size: 24px;
+            }
+            
+            .input-wrapper {
+                flex-direction: column;
+            }
+            
+            button {
+                width: 100%;
+            }
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <h1>🔒 Secure Site Proxy</h1>
+            <p>Access websites securely through encrypted proxy</p>
+        </div>
+        
+        <form id="proxyForm">
+            <div class="form-group">
+                <label for="targetUrl">Enter URL to access:</label>
+                <div class="input-wrapper">
+                    <input 
+                        type="url" 
+                        id="targetUrl" 
+                        name="url"
+                        placeholder="https://example.com" 
+                        required 
+                        autofocus
+                        pattern="https?://.+"
+                    >
+                    <button type="submit">Access</button>
+                </div>
+            </div>
+        </form>
+        
+        <div class="info-box">
+            <h3>Security Features:</h3>
+            <ul>
+                <li>End-to-end encrypted connection</li>
+                <li>No logging of accessed URLs</li>
+                <li>Automatic content rewriting</li>
+                <li>Protection against private network access</li>
+            </ul>
+        </div>
+        
+        <div class="footer">
+            <a href="/logout">Logout</a>
+            <span class="stats" id="stats"></span>
+        </div>
+    </div>
+    
+    <script>
+        document.getElementById('proxyForm').addEventListener('submit', function(e) {
+            e.preventDefault();
+            
+            const url = document.getElementById('targetUrl').value;
+            
+            // 基本验证
+            if (!url.startsWith('http://') && !url.startsWith('https://')) {
+                alert('URL must start with http:// or https://');
+                return;
+            }
+            
+            // 跳转到代理页面
+            window.location.href = '/proxy?url=' + encodeURIComponent(url);
+        });
+        
+        // 加载统计信息（可选）
+        fetch('/stats')
+            .then(r => r.json())
+            .then(data => {
+                document.getElementById('stats').textContent = 
+                    'Cache: ' + data.entries + ' entries, ' + 
+                    (data.size / 1024 / 1024).toFixed(2) + ' MB';
+            })
+            .catch(() => {});
+    </script>
+</body>
+</html>`
+    
+    w.Header().Set("Content-Type", "text/html; charset=utf-8")
+    w.Write([]byte(html))
+}
