Merge branch 'codex/platform-creation-flow-polish'

# Conflicts:
#	docs/【玩法创作】平台入口与玩法链路-2026-05-15.md
#	src/components/rpg-entry/RpgEntryHomeView.tsx

src/index.css

@@ -40,11 +40,36 @@
 
 html,
 body,
-#root {
+#root,
+.platform-viewport-shell,
+.platform-tab-panel,
+.platform-page-stage,
+.unified-creation-page,
+.platform-work-detail__scroll {
   width: 100%;
-  height: 100%;
   min-width: 0;
   overflow-x: hidden;
+  -ms-overflow-style: none;
+  scrollbar-width: none;
+}
+
+html::-webkit-scrollbar,
+body::-webkit-scrollbar,
+#root::-webkit-scrollbar,
+.platform-viewport-shell::-webkit-scrollbar,
+.platform-tab-panel::-webkit-scrollbar,
+.platform-page-stage::-webkit-scrollbar,
+.unified-creation-page::-webkit-scrollbar,
+.platform-work-detail__scroll::-webkit-scrollbar {
+  display: none;
+  width: 0;
+  height: 0;
+}
+
+html,
+body,
+#root {
+  height: 100%;
 }
 
 body {