Merge remote-tracking branch 'origin/master' into feat/recommend-runtime-guest

# Conflicts:
#	docs/【玩法创作】平台入口与玩法链路-2026-05-15.md

src/components/custom-world-home/CustomWorldCreationHub.tsx

@@ -355,7 +355,7 @@ export function CustomWorldCreationHub({
   const showWorkShelf = mode !== 'start-only';
 
   return (
-    <div className="platform-page-stage platform-remap-surface space-y-4 px-3 pb-4 pt-3 sm:px-4 sm:pt-4 xl:px-5 xl:pb-5 xl:pt-5">
+    <div className="platform-remap-surface w-full space-y-4 px-3 pb-4 pt-3 sm:px-4 sm:pt-4 xl:px-5 xl:pb-5 xl:pt-5">
       <div className="space-y-4 xl:space-y-3">
         {showStartCard ? (
           <CustomWorldCreationStartCard