diff --git a/apps/ai-game-creator-shell/src/styles.css b/apps/ai-game-creator-shell/src/styles.css
index c276be1d6..6157dc1f6 100644
--- a/apps/ai-game-creator-shell/src/styles.css
+++ b/apps/ai-game-creator-shell/src/styles.css
@@ -144,8 +144,9 @@ textarea {
 }
 
 .launcher-shell {
+  --launcher-sidebar-width: 64px;
   display: grid;
-  grid-template-columns: 80px minmax(0, 1fr);
+  grid-template-columns: var(--launcher-sidebar-width) minmax(0, 1fr);
   min-height: 100vh;
   background: #fff;
   color: #171717;
@@ -1478,10 +1479,6 @@ textarea {
 }
 
 @media (max-width: 760px) {
-  .launcher-shell {
-    grid-template-columns: 48px minmax(0, 1fr);
-  }
-
   .launcher-main {
     grid-template-rows: auto auto auto;
     overflow: visible;
diff --git a/apps/ai-game-creator-shell/src/view/layout.tsx b/apps/ai-game-creator-shell/src/view/layout.tsx
index 4f3006f57..a780b1fea 100644
--- a/apps/ai-game-creator-shell/src/view/layout.tsx
+++ b/apps/ai-game-creator-shell/src/view/layout.tsx
@@ -258,7 +258,7 @@ export function Sidebar({
   }
 
   return (
-    <aside className="w-16 sticky top-0 z-40 flex h-screen flex-col items-center gap-4 overflow-visible border-r border-(--platform-surface-border) bg-(--platform-nav-fill) px-0 pb-4.5 pt-4">
+    <aside className="sticky top-0 z-40 flex h-screen w-full flex-col items-center gap-4 overflow-visible border-r border-(--platform-surface-border) bg-(--platform-nav-fill) px-0 pb-4.5 pt-4">
       <div className="grid place-items-center" aria-label="陶泥儿">
         <span className="grid size-12 place-items-center rounded-full bg-(--platform-button-primary-fill) text-[10px] font-bold tracking-normal text-(--platform-button-primary-text) shadow-(--platform-profile-action-shadow)">
           <img src={BRAND_ICON} alt="brand logo" />