diff --git a/public/logo.png b/public/logo.png
new file mode 100644
index 0000000..efa1317
Binary files /dev/null and b/public/logo.png differ
diff --git a/src/pages/Admin.jsx b/src/pages/Admin.jsx
index f1c2ebc..134c91b 100644
--- a/src/pages/Admin.jsx
+++ b/src/pages/Admin.jsx
@@ -436,6 +436,7 @@ export default function Admin() {
             {fromScreen && (
               <button className="btn-return" onClick={handleReturnToScreen}>返回展播</button>
             )}
+            <button className="btn-return" onClick={() => navigate('/screen2')}>数据大屏</button>
             <button className="btn-logout" onClick={handleLogout}>退出</button>
           </div>
         </div>