diff --git a/src/components/puzzle-clear-runtime/PuzzleClearRuntimeShell.test.tsx b/src/components/puzzle-clear-runtime/PuzzleClearRuntimeShell.test.tsx
index 3fbf02e1..66252d06 100644
--- a/src/components/puzzle-clear-runtime/PuzzleClearRuntimeShell.test.tsx
+++ b/src/components/puzzle-clear-runtime/PuzzleClearRuntimeShell.test.tsx
@@ -296,6 +296,25 @@ test('翻牌只在开局阶段出现，交换后的新卡不会重新翻转', as
   );
 });
 
+test('未拿到 active run 时显示本地等待层薄壳', () => {
+  render(
+    <PuzzleClearRuntimeShell
+      profile={createProfile()}
+      run={null}
+      onSwapCards={vi.fn()}
+      onRetryLevel={vi.fn()}
+      onNextLevel={vi.fn()}
+      onTimeUp={vi.fn()}
+    />,
+  );
+
+  const pendingOverlay = screen.getByTestId(
+    'puzzle-clear-runtime-pending-overlay',
+  );
+  expect(pendingOverlay.getAttribute('role')).toBe('status');
+  expect(pendingOverlay.textContent).toContain('等待开局');
+});
+
 test('指针拖拽到另一张卡片时提交后端交换动作', async () => {
   const onSwapCards = vi.fn().mockResolvedValue(undefined);
 
@@ -1148,6 +1167,7 @@ test('关卡结算弹层提供下一关和失败重试动作', () => {
     />,
   );
 
+  expect(screen.getByRole('dialog', { name: '本关完成' })).toBeTruthy();
   fireEvent.click(screen.getByRole('button', { name: /下一关/u }));
   expect(onNextLevel).toHaveBeenCalledTimes(1);
 
@@ -1162,6 +1182,7 @@ test('关卡结算弹层提供下一关和失败重试动作', () => {
     />,
   );
 
+  expect(screen.getByRole('dialog', { name: '本关失败' })).toBeTruthy();
   fireEvent.click(screen.getAllByRole('button', { name: '重试' }).at(-1)!);
   expect(onRetryLevel).toHaveBeenCalledTimes(1);
 });
diff --git a/src/components/puzzle-clear-runtime/PuzzleClearRuntimeShell.tsx b/src/components/puzzle-clear-runtime/PuzzleClearRuntimeShell.tsx
index 558a82a5..a6dab42d 100644
--- a/src/components/puzzle-clear-runtime/PuzzleClearRuntimeShell.tsx
+++ b/src/components/puzzle-clear-runtime/PuzzleClearRuntimeShell.tsx
@@ -1,6 +1,7 @@
 import { ArrowLeft, ChevronRight, RotateCcw } from 'lucide-react';
 import {
   type CSSProperties,
+  type ReactNode,
   type PointerEvent as ReactPointerEvent,
   useEffect,
   useMemo,
@@ -122,6 +123,28 @@ type PuzzleClearMergeHighlightState = {
 
 type PuzzleClearLockedGroupViewModel = PuzzleClearDragGroupState;
 
+type PuzzleClearRuntimeOverlayShellProps = {
+  backdropClassName: string;
+  panelClassName: string;
+  children: ReactNode;
+  panelRole?: 'dialog' | 'status';
+  panelLabelledBy?: string;
+  panelLiveMode?: 'polite' | 'assertive';
+  panelTestId?: string;
+};
+
+type PuzzleClearRuntimeSettlementStatus = Extract<
+  PuzzleClearRuntimeSnapshotResponse['status'],
+  'level_cleared' | 'finished' | 'level_failed'
+>;
+
+type PuzzleClearRuntimeSettlementDialogProps = {
+  status: PuzzleClearRuntimeSettlementStatus;
+  isBusy: boolean;
+  onRetryLevel: () => void;
+  onPrimaryAction?: () => void;
+};
+
 const PUZZLE_CLEAR_CLEAR_TRANSITION_MS = 1120;
 const PUZZLE_CLEAR_REFILL_DROP_DELAY_MS = 520;
 const PUZZLE_CLEAR_DROP_STAGGER_MAX_MS = 180;
@@ -240,6 +263,100 @@ function getCardImageStyle(card: PuzzleClearCardAsset | null) {
   } as CSSProperties;
 }
 
+function getPuzzleClearSettlementTitle(
+  status: PuzzleClearRuntimeSettlementStatus,
+) {
+  if (status === 'level_failed') {
+    return '本关失败';
+  }
+  if (status === 'finished') {
+    return '已完成';
+  }
+  return '本关完成';
+}
+
+// 运行态 overlay 先在玩法目录内做薄壳收口，保留拼消消自己的视觉和交互语义。
+function PuzzleClearRuntimeOverlayShell({
+  backdropClassName,
+  panelClassName,
+  children,
+  panelRole,
+  panelLabelledBy,
+  panelLiveMode,
+  panelTestId,
+}: PuzzleClearRuntimeOverlayShellProps) {
+  return (
+    <div className={backdropClassName}>
+      <div
+        role={panelRole}
+        aria-modal={panelRole === 'dialog' ? true : undefined}
+        aria-labelledby={panelLabelledBy}
+        aria-live={panelLiveMode}
+        data-testid={panelTestId}
+        className={panelClassName}
+      >
+        {children}
+      </div>
+    </div>
+  );
+}
+
+function PuzzleClearRuntimePendingOverlay() {
+  return (
+    <PuzzleClearRuntimeOverlayShell
+      backdropClassName="absolute inset-0 z-40 grid place-items-center bg-white/42 px-6 backdrop-blur-sm"
+      panelClassName="rounded-[1.25rem] border border-white/80 bg-white/90 px-5 py-4 text-sm font-black shadow-lg"
+      panelRole="status"
+      panelLiveMode="polite"
+      panelTestId="puzzle-clear-runtime-pending-overlay"
+    >
+      等待开局
+    </PuzzleClearRuntimeOverlayShell>
+  );
+}
+
+function PuzzleClearRuntimeSettlementDialog({
+  status,
+  isBusy,
+  onRetryLevel,
+  onPrimaryAction,
+}: PuzzleClearRuntimeSettlementDialogProps) {
+  const isExitAction = status === 'finished' || status === 'level_failed';
+  const title = getPuzzleClearSettlementTitle(status);
+
+  return (
+    <PuzzleClearRuntimeOverlayShell
+      backdropClassName="absolute inset-0 z-50 grid place-items-center bg-slate-950/28 px-6 backdrop-blur-[2px]"
+      panelClassName="w-full max-w-[19rem] rounded-[1.25rem] border border-white/70 bg-white/92 p-4 text-center shadow-[0_18px_50px_rgba(15,23,42,0.22)]"
+      panelRole="dialog"
+      panelLabelledBy="puzzle-clear-runtime-settlement-title"
+      panelTestId="puzzle-clear-runtime-settlement-dialog"
+    >
+      <div className="text-2xl font-black">
+        <span id="puzzle-clear-runtime-settlement-title">{title}</span>
+      </div>
+      <div className="mt-4 grid grid-cols-2 gap-2">
+        <PlatformActionButton
+          onClick={onRetryLevel}
+          disabled={isBusy}
+          tone="ghost"
+          className="min-h-11 justify-center bg-white px-3 py-2 text-sm"
+        >
+          重试
+        </PlatformActionButton>
+        <PlatformActionButton
+          onClick={onPrimaryAction}
+          disabled={isBusy}
+          className="min-h-11 justify-center gap-2 px-3 py-2 text-sm"
+        >
+          {isExitAction ? '返回' : '下一关'}
+          {!isExitAction ? <ChevronRight className="h-4 w-4" /> : null}
+        </PlatformActionButton>
+      </div>
+    </PuzzleClearRuntimeOverlayShell>
+  );
+}
+
 function readPointerClientPoint(event: ReactPointerEvent<HTMLButtonElement>) {
   return {
     x: Number.isFinite(event.clientX) ? event.clientX : 0,
@@ -568,6 +685,14 @@ export function PuzzleClearRuntimeShell({
   const hasWonLevel = activeRun?.status === 'level_cleared';
   const hasFinished = activeRun?.status === 'finished';
   const hasFailed = activeRun?.status === 'level_failed';
+  const settlementStatus: PuzzleClearRuntimeSettlementStatus | null =
+    hasFailed
+      ? 'level_failed'
+      : hasFinished
+        ? 'finished'
+        : hasWonLevel
+          ? 'level_cleared'
+          : null;
   const clearRatio = activeRun
     ? Math.min(1, activeRun.clearsDone / Math.max(1, activeRun.targetClears))
     : 0;
@@ -1467,42 +1592,17 @@ export function PuzzleClearRuntimeShell({
         ) : null}
       </main>
 
-      {!activeRun ? (
-        <div className="absolute inset-0 z-40 grid place-items-center bg-white/42 px-6 backdrop-blur-sm">
-          <div className="rounded-[1.25rem] border border-white/80 bg-white/90 px-5 py-4 text-sm font-black shadow-lg">
-            等待开局
-          </div>
-        </div>
-      ) : null}
+      {!activeRun ? <PuzzleClearRuntimePendingOverlay /> : null}
 
-      {hasWonLevel || hasFinished || hasFailed ? (
-        <div className="absolute inset-0 z-50 grid place-items-center bg-slate-950/28 px-6 backdrop-blur-[2px]">
-          <div className="w-full max-w-[19rem] rounded-[1.25rem] border border-white/70 bg-white/92 p-4 text-center shadow-[0_18px_50px_rgba(15,23,42,0.22)]">
-            <div className="text-2xl font-black">
-              {hasFailed ? '本关失败' : hasFinished ? '已完成' : '本关完成'}
-            </div>
-            <div className="mt-4 grid grid-cols-2 gap-2">
-              <PlatformActionButton
-                onClick={onRetryLevel}
-                disabled={isBusy}
-                tone="ghost"
-                className="min-h-11 justify-center bg-white px-3 py-2 text-sm"
-              >
-                重试
-              </PlatformActionButton>
-              <PlatformActionButton
-                onClick={hasFinished || hasFailed ? onBack : onNextLevel}
-                disabled={isBusy}
-                className="min-h-11 justify-center gap-2 px-3 py-2 text-sm"
-              >
-                {hasFinished || hasFailed ? '返回' : '下一关'}
-                {!hasFinished && !hasFailed ? (
-                  <ChevronRight className="h-4 w-4" />
-                ) : null}
-              </PlatformActionButton>
-            </div>
-          </div>
-        </div>
+      {settlementStatus ? (
+        <PuzzleClearRuntimeSettlementDialog
+          status={settlementStatus}
+          isBusy={isBusy}
+          onRetryLevel={onRetryLevel}
+          onPrimaryAction={
+            settlementStatus === 'level_cleared' ? onNextLevel : onBack
+          }
+        />
       ) : null}
     </div>
   );