diff --git a/components/ai-cad/ai-cad-workbench.tsx b/components/ai-cad/ai-cad-workbench.tsx
index eea3e705f..e9dae3d22 100644
--- a/components/ai-cad/ai-cad-workbench.tsx
+++ b/components/ai-cad/ai-cad-workbench.tsx
@@ -3779,7 +3779,7 @@ export function AiCadWorkbench() {
                 {workspaces.map((workspace) => (
                   <button
                     className={cn(
-                      "min-w-[228px] rounded-[8px] border px-3.5 py-3 text-left transition-all duration-150 ease-out",
+                      "min-w-[220px] rounded-[8px] border px-3 py-2.5 text-left transition-all duration-150 ease-out",
                       workspace.id === activeWorkspaceId
                         ? "border-white/20 bg-[#242424]"
                         : "border-white/10 bg-[#1d1d1d] hover:border-white/15 hover:bg-[#222]",
@@ -3814,7 +3814,7 @@ export function AiCadWorkbench() {
                       </Badge>
                     </div>
 
-                    <div className="mt-3 flex items-center gap-3 text-white/60 text-xs">
+                    <div className="mt-2 flex items-center gap-3 text-white/60 text-xs">
                       <span>
                         {getProviderLabel(workspace.generationProvider)}
                       </span>
@@ -3838,9 +3838,8 @@ export function AiCadWorkbench() {
                       )}
                     </div>
 
-                    <p className="mt-2.5 line-clamp-2 min-h-10 text-[13px] text-white/62 leading-5">
-                      {workspace.latestPrompt ||
-                        "这个工作台还没有开始描述设计意图。"}
+                    <p className="mt-2 line-clamp-1 text-[12px] text-white/52 leading-5">
+                      {workspace.latestPrompt || "还没有开始描述设计意图"}
                     </p>
                   </button>
                 ))}
@@ -4150,10 +4149,10 @@ export function AiCadWorkbench() {
               </div>
             </div>
 
-            <div className="min-h-0 flex-1 p-3">
+            <div className="min-h-0 flex-1 overflow-y-auto p-3">
               <PanelGroup
                 autoSaveId={`ai-cad-panel-layout:${panelDirection}`}
-                className="flex h-full min-h-0"
+                className="flex h-full min-h-[780px]"
                 direction={panelDirection}
               >
                 <Panel