diff --git a/backend/apps/generation/views.py b/backend/apps/generation/views.py
index baa1a22..57bcfc1 100644
--- a/backend/apps/generation/views.py
+++ b/backend/apps/generation/views.py
@@ -320,7 +320,10 @@ def _release_freeze(record):
     frozen = record.frozen_amount
     with transaction.atomic():
         locked_team = Team.objects.select_for_update().get(pk=team.pk)
-        locked_team.frozen_amount = F('frozen_amount') - frozen
+        # 防止 frozen_amount 变负
+        actual_release = min(frozen, locked_team.frozen_amount)
+        if actual_release > 0:
+            locked_team.frozen_amount = F('frozen_amount') - actual_release
         locked_team.total_seconds_used = F('total_seconds_used') - record.seconds_consumed
         locked_team.save(update_fields=['frozen_amount', 'total_seconds_used'])
     record.frozen_amount = 0
diff --git a/web/src/components/VideoDetailModal.tsx b/web/src/components/VideoDetailModal.tsx
index 48c5dfc..067d8f2 100644
--- a/web/src/components/VideoDetailModal.tsx
+++ b/web/src/components/VideoDetailModal.tsx
@@ -13,13 +13,14 @@ interface Props {
   onReEdit?: (id: string) => void;
   onRegenerate?: (id: string) => void;
   onDelete?: (id: string) => void;
+  hideReEdit?: boolean;
   onPrev?: () => void;
   onNext?: () => void;
   hasPrev?: boolean;
   hasNext?: boolean;
 }
 
-export function VideoDetailModal({ task, onClose, onReEdit, onRegenerate, onDelete, onPrev, onNext, hasPrev, hasNext }: Props) {
+export function VideoDetailModal({ task, onClose, onReEdit, onRegenerate, onDelete, onPrev, onNext, hasPrev, hasNext, hideReEdit }: Props) {
   const navigate = useNavigate();
   const videoRef = useRef<HTMLVideoElement>(null);
   const videoContainerRef = useRef<HTMLDivElement>(null);
@@ -230,7 +231,7 @@ export function VideoDetailModal({ task, onClose, onReEdit, onRegenerate, onDele
         }
       }
       onClose();
-      navigate('/');
+      navigate('/app');
     }
   };
 
@@ -497,7 +498,7 @@ export function VideoDetailModal({ task, onClose, onReEdit, onRegenerate, onDele
           </div>
 
           {/* Re-edit button above info bar */}
-          <div style={{ padding: '0 20px 12px', borderBottom: '1px solid rgba(255,255,255,0.08)' }}>
+          {!hideReEdit && <div style={{ padding: '0 20px 12px', borderBottom: '1px solid rgba(255,255,255,0.08)' }}>
               <button className={styles.cardBtn} onClick={handleReEdit} style={{ width: '100%', justifyContent: 'center' }}>
                 <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round">
                   <path d="M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7" />
@@ -505,7 +506,7 @@ export function VideoDetailModal({ task, onClose, onReEdit, onRegenerate, onDele
                 </svg>
                 重新编辑
               </button>
-            </div>
+            </div>}
 
           {/* Fixed bottom: info bar + actions card */}
           <div className={styles.infoPanelBottom}>
diff --git a/web/src/pages/AdminAssetsPage.tsx b/web/src/pages/AdminAssetsPage.tsx
index a6197ad..c17c511 100644
--- a/web/src/pages/AdminAssetsPage.tsx
+++ b/web/src/pages/AdminAssetsPage.tsx
@@ -229,6 +229,7 @@ export function AdminAssetsPage() {
       <VideoDetailModal
         task={detailTask}
         onClose={() => setDetailTask(null)}
+        hideReEdit
       />
     </div>
   );
diff --git a/web/src/store/generation.ts b/web/src/store/generation.ts
index 5918af4..6cf27e6 100644
--- a/web/src/store/generation.ts
+++ b/web/src/store/generation.ts
@@ -75,7 +75,7 @@ function backendToFrontend(bt: BackendTask): GenerationTask {
     duration: bt.duration as GenerationTask['duration'],
     references,
     status: mapStatus(bt.status),
-    progress: mapProgress(bt.status),
+    progress: bt.status === 'processing' ? Number(sessionStorage.getItem(`progress_${bt.task_id}`) || mapProgress(bt.status)) : mapProgress(bt.status),
     resultUrl: bt.result_url || undefined,
     errorMessage: mapErrorMessage(bt.error_message),
     createdAt: new Date(bt.created_at).getTime(),
@@ -105,7 +105,9 @@ function ensureSmoothProgress() {
         if (t.status !== 'generating') return t;
         // Decelerate: fast at start, slow near end
         const increment = t.progress < 30 ? 2 : t.progress < 60 ? 1 : 0.5;
-        return { ...t, progress: Math.min(t.progress + increment, 95) };
+        const newProgress = Math.min(t.progress + increment, 95);
+        if (t.taskId) sessionStorage.setItem(`progress_${t.taskId}`, String(newProgress));
+        return { ...t, progress: newProgress };
       }),
     }));
   }, 2000);
@@ -146,6 +148,7 @@ function startPolling(taskId: string, frontendId: string) {
 
         if (newStatus === 'completed' || newStatus === 'failed') {
           pollTimers.delete(frontendId);
+          sessionStorage.removeItem(`progress_${taskId}`);
           if (newStatus === 'completed') {
             useAuthStore.getState().fetchUserInfo();
           }