diff --git a/src/components/studio/sidebar.tsx b/src/components/studio/sidebar.tsx
index c136ae5d..db6762d2 100644
--- a/src/components/studio/sidebar.tsx
+++ b/src/components/studio/sidebar.tsx
@@ -29,6 +29,7 @@ import { translate as t } from '@/lib/i18n/messages/timeline'
 import { translate as announceT } from '@/lib/i18n/messages/announce'
 import { useAnnouncer } from '@/lib/a11y/announcer'
 import { ShortcutsTrigger } from './shortcuts-dialog'
+import { COMMAND_PALETTE_SHORTCUT_LABEL } from '@/lib/studio/platform'
 
 interface NavItem {
   id: ViewId
@@ -213,7 +214,7 @@ export const Sidebar = () => {
           <Search className="h-3.5 w-3.5" />
           <span className="flex-1">Search…</span>
           <kbd className="rounded border border-border bg-muted px-1.5 py-0.5 font-mono text-caption text-ink-faint">
-            ⌘K
+            {COMMAND_PALETTE_SHORTCUT_LABEL}
           </kbd>
         </button>
       </div>      {/* Nav groups */}
diff --git a/src/components/studio/topbar.tsx b/src/components/studio/topbar.tsx
index 746b9def..5f2787c9 100644
--- a/src/components/studio/topbar.tsx
+++ b/src/components/studio/topbar.tsx
@@ -5,6 +5,7 @@ import type { ViewId } from '@/lib/studio/types'
 import { translate as timelineT } from '@/lib/i18n/messages/timeline'
 import { Menu, Plus, Search, X } from 'lucide-react'
 import type { KeyboardEvent } from 'react'
+import { COMMAND_PALETTE_SHORTCUT_LABEL } from '@/lib/studio/platform'
 
 /** View title metadata keyed by ViewId (bounded Map retrieval — no dynamic indexing). */
 const VIEW_TITLES: ReadonlyMap<ViewId, { title: string; subtitle: string }> = new Map([
@@ -124,7 +125,7 @@ export const Topbar = () => {
           aria-label="Open command palette"
           className="absolute right-1.5 top-1/2 flex min-h-[44px] min-w-[44px] items-center justify-center -translate-y-1/2 rounded border border-border bg-muted px-1.5 font-mono text-caption text-ink-faint transition-colors hover:bg-muted/70 hover:text-ink-soft focus-ring overflow-hidden"
         >
-          ⌘K
+          {COMMAND_PALETTE_SHORTCUT_LABEL}
         </button>
       </div>
 
diff --git a/src/lib/studio/platform.ts b/src/lib/studio/platform.ts
new file mode 100644
index 00000000..924c8114
--- /dev/null
+++ b/src/lib/studio/platform.ts
@@ -0,0 +1,4 @@
+export const IS_MAC =
+  typeof navigator !== 'undefined' && /mac/i.test(navigator.platform)
+
+export const COMMAND_PALETTE_SHORTCUT_LABEL = IS_MAC ? '⌘K' : 'Ctrl+K'