diff --git a/web/pages/Assistants.tsx b/web/pages/Assistants.tsx
index 10cbb44..ca7b07c 100644
--- a/web/pages/Assistants.tsx
+++ b/web/pages/Assistants.tsx
@@ -1700,7 +1700,7 @@ export const DebugDrawer: React.FC<{
               {mode === 'text' ? (
                 textSessionStarted ? (
                   <div className="flex-1 flex flex-col min-h-0 animate-in fade-in">
-                    <div className="h-[52vh] min-h-[260px] max-h-[52vh]">
+                    <div className="h-[52vh] min-h-[260px] max-h-[52vh] flex min-h-0">
                       <TranscriptionLog />
                     </div>
                   </div>
@@ -1804,10 +1804,16 @@ export const DebugDrawer: React.FC<{
             </div>
 
             <div className="shrink-0 space-y-2">
-              <div className="flex items-center gap-2 min-w-0">
+              <div className="w-full flex items-center gap-2 min-w-0">
                 {mode === 'text' && textSessionStarted && (
-                  <Button variant="destructive" size="sm" className="h-9 font-bold shrink-0" onClick={closeWs}>
-                    <PhoneOff className="mr-2 h-4 w-4" /> 结束测试
+                  <Button
+                    variant="destructive"
+                    size="sm"
+                    className="h-9 px-3 font-bold shrink-0 whitespace-nowrap"
+                    onClick={closeWs}
+                  >
+                    <PhoneOff className="h-4 w-4" />
+                    <span className="ml-1.5">结束测试</span>
                   </Button>
                 )}
                 <Input
@@ -1818,7 +1824,14 @@ export const DebugDrawer: React.FC<{
                   disabled={isLoading || (mode === 'text' ? !textSessionStarted : callStatus !== 'active')}
                   className="flex-1 min-w-0"
                 />
-                <Button size="icon" className="shrink-0" onClick={handleSend} disabled={isLoading || (mode === 'text' ? !textSessionStarted : callStatus !== 'active')}><Send className="h-4 w-4" /></Button>
+                <Button
+                  size="icon"
+                  className="h-9 w-9 shrink-0"
+                  onClick={handleSend}
+                  disabled={isLoading || (mode === 'text' ? !textSessionStarted : callStatus !== 'active')}
+                >
+                  <Send className="h-4 w-4" />
+                </Button>
               </div>
             </div>
         </div>