diff --git a/app/iptv/page.tsx b/app/iptv/page.tsx
index 933a531..baceff5 100644
--- a/app/iptv/page.tsx
+++ b/app/iptv/page.tsx
@@ -10,7 +10,7 @@ import { IPTVSourceManager } from '@/components/iptv/IPTVSourceManager';
 import { IPTVChannelGrid } from '@/components/iptv/IPTVChannelGrid';
 import { IPTVPlayer } from '@/components/iptv/IPTVPlayer';
 import { Icons } from '@/components/ui/Icon';
-import { hasPermission } from '@/lib/store/auth-store';
+import { hasPermission, getSession } from '@/lib/store/auth-store';
 import Link from 'next/link';
 import type { M3UChannel } from '@/lib/utils/m3u-parser';
 
@@ -20,6 +20,21 @@ export default function IPTVPage() {
   const [showManager, setShowManager] = useState(false);
 
   const canManageSources = hasPermission('source_management');
+  const canAccessIPTV = hasPermission('iptv_access');
+
+  // If auth is configured and user doesn't have iptv_access, show access denied
+  if (!canAccessIPTV && getSession()) {
+    return (
+      <div className="min-h-screen flex items-center justify-center bg-[var(--bg-color)] bg-[image:var(--bg-image)]">
+        <div className="text-center p-8">
+          <Icons.TV size={48} className="mx-auto mb-4 text-[var(--text-color-secondary)] opacity-40" />
+          <p className="text-[var(--text-color)] font-medium mb-2">无权访问 IPTV</p>
+          <p className="text-sm text-[var(--text-color-secondary)] mb-4">请联系管理员开通权限</p>
+          <Link href="/" className="text-sm text-[var(--accent-color)] hover:underline">返回首页</Link>
+        </div>
+      </div>
+    );
+  }
 
   // Auto-refresh on first load if we have sources but no cached channels
   useEffect(() => {
diff --git a/components/iptv/IPTVPlayer.tsx b/components/iptv/IPTVPlayer.tsx
index 1157a0e..052b056 100644
--- a/components/iptv/IPTVPlayer.tsx
+++ b/components/iptv/IPTVPlayer.tsx
@@ -352,11 +352,14 @@ export function IPTVPlayer({ channel, onClose, channels, onChannelChange }: IPTV
     if (value > 0 && video.muted) video.muted = false;
   };
 
+  const progressRef = useRef<HTMLDivElement>(null);
+
   const handleSeek = (e: React.MouseEvent<HTMLDivElement>) => {
     if (isLive) return;
     const video = videoRef.current;
-    if (!video || !duration) return;
-    const rect = e.currentTarget.getBoundingClientRect();
+    const bar = progressRef.current;
+    if (!video || !duration || !bar) return;
+    const rect = bar.getBoundingClientRect();
     const ratio = Math.max(0, Math.min(1, (e.clientX - rect.left) / rect.width));
     video.currentTime = ratio * duration;
   };
@@ -370,6 +373,63 @@ export function IPTVPlayer({ channel, onClose, channels, onChannelChange }: IPTV
     }
   };
 
+  // Keyboard shortcuts (matching main video player)
+  useEffect(() => {
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.target instanceof HTMLInputElement || e.target instanceof HTMLTextAreaElement) return;
+
+      resetControlsTimeout();
+      const video = videoRef.current;
+      if (!video) return;
+
+      switch (e.key.toLowerCase()) {
+        case ' ':
+        case 'k':
+          e.preventDefault();
+          togglePlay();
+          break;
+        case 'f':
+          e.preventDefault();
+          toggleFullscreen();
+          break;
+        case 'm':
+          e.preventDefault();
+          toggleMute();
+          break;
+        case 'escape':
+          e.preventDefault();
+          onClose();
+          break;
+        case 'arrowright':
+        case 'l':
+          e.preventDefault();
+          if (!isLive && isFinite(video.duration)) {
+            video.currentTime = Math.min(video.duration, video.currentTime + 10);
+          }
+          break;
+        case 'arrowleft':
+        case 'j':
+          e.preventDefault();
+          if (!isLive && isFinite(video.duration)) {
+            video.currentTime = Math.max(0, video.currentTime - 10);
+          }
+          break;
+        case 'arrowup':
+          e.preventDefault();
+          video.volume = Math.min(1, video.volume + 0.1);
+          if (video.muted) video.muted = false;
+          break;
+        case 'arrowdown':
+          e.preventDefault();
+          video.volume = Math.max(0, video.volume - 0.1);
+          break;
+      }
+    };
+
+    window.addEventListener('keydown', handleKeyDown);
+    return () => window.removeEventListener('keydown', handleKeyDown);
+  });
+
   const VolumeIcon = isMuted || volume === 0 ? Icons.VolumeX : volume < 0.5 ? Icons.Volume1 : Icons.Volume2;
 
   const filteredSidebarChannels = useMemo(() => {
@@ -469,11 +529,12 @@ export function IPTVPlayer({ channel, onClose, channels, onChannelChange }: IPTV
           {!isLive && duration > 0 && (
             <div className="px-4 pt-2">
               <div
+                ref={progressRef}
                 className="group h-1 hover:h-2 bg-white/20 rounded-full cursor-pointer transition-all relative"
                 onClick={(e) => { e.stopPropagation(); handleSeek(e); }}
               >
                 <div
-                  className="h-full bg-[var(--accent-color)] rounded-full relative"
+                  className="h-full bg-[var(--accent-color)] rounded-full relative pointer-events-none"
                   style={{ width: `${(currentTime / duration) * 100}%` }}
                 >
                   <div className="absolute right-0 top-1/2 -translate-y-1/2 w-3 h-3 bg-white rounded-full opacity-0 group-hover:opacity-100 transition-opacity" />
diff --git a/components/layout/Navbar.tsx b/components/layout/Navbar.tsx
index 8729fc9..6a303d2 100644
--- a/components/layout/Navbar.tsx
+++ b/components/layout/Navbar.tsx
@@ -6,7 +6,7 @@ import Image from 'next/image';
 import { ThemeSwitcher } from '@/components/ThemeSwitcher';
 import { Icons } from '@/components/ui/Icon';
 import { siteConfig } from '@/lib/config/site-config';
-import { getSession, clearSession, type AuthSession } from '@/lib/store/auth-store';
+import { getSession, clearSession, hasPermission, type AuthSession } from '@/lib/store/auth-store';
 import { LogOut } from 'lucide-react';
 
 interface NavbarProps {
@@ -24,7 +24,8 @@ export function Navbar({ onReset, isPremiumMode = false }: NavbarProps) {
 
     const handleLogout = () => {
         clearSession();
-        window.location.reload();
+        // Navigate to root to clear search query params
+        window.location.href = '/';
     };
 
     return (
@@ -59,7 +60,8 @@ export function Navbar({ onReset, isPremiumMode = false }: NavbarProps) {
                         </Link>
 
                         <div className="flex items-center gap-2 sm:gap-3 flex-shrink-0">
-                            {/* IPTV Link */}
+                            {/* IPTV Link - only show if user has iptv_access or no auth configured */}
+                            {hasPermission('iptv_access') && (
                             <Link
                                 href="/iptv"
                                 className="w-8 h-8 sm:w-10 sm:h-10 flex items-center justify-center rounded-[var(--radius-full)] bg-[var(--glass-bg)] border border-[var(--glass-border)] text-[var(--text-color)] hover:bg-[color-mix(in_srgb,var(--accent-color)_10%,transparent)] transition-all duration-200 cursor-pointer"
@@ -69,6 +71,7 @@ export function Navbar({ onReset, isPremiumMode = false }: NavbarProps) {
                             >
                                 <Icons.TV size={16} className="sm:w-5 sm:h-5" />
                             </Link>
+                            )}
 
                             {/* User Info */}
                             {session && (
diff --git a/components/player/EpisodeList.tsx b/components/player/EpisodeList.tsx
index 7cd8ef8..cdefba5 100644
--- a/components/player/EpisodeList.tsx
+++ b/components/player/EpisodeList.tsx
@@ -74,12 +74,46 @@ export function EpisodeList({
   useEffect(() => {
     if (!sources) return;
     const initial: Record<string, number> = {};
+    let hasMissing = false;
     sources.forEach(s => {
       if (s.latency !== undefined) {
         initial[s.source] = s.latency;
+      } else {
+        hasMissing = true;
       }
     });
     setLatencies(initial);
+
+    // Auto-refresh latencies for sources that don't have them
+    if (hasMissing && sources.length > 1) {
+      const autoRefresh = async () => {
+        const missing = sources.filter(s => s.latency === undefined);
+        const results = await Promise.all(
+          missing.map(async (source) => {
+            try {
+              const response = await fetch('/api/ping', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ url: source.source }),
+              });
+              if (response.ok) {
+                const data = await response.json();
+                return { source: source.source, latency: data.latency as number | undefined };
+              }
+            } catch { /* ignore */ }
+            return { source: source.source, latency: undefined };
+          })
+        );
+        setLatencies(prev => {
+          const updated = { ...prev };
+          results.forEach(({ source, latency }) => {
+            if (latency !== undefined) updated[source] = latency;
+          });
+          return updated;
+        });
+      };
+      autoRefresh();
+    }
   }, [sources]);
 
   // Refresh latencies
diff --git a/components/search/SourceBadgeList.tsx b/components/search/SourceBadgeList.tsx
index e328e7c..5b507e4 100644
--- a/components/search/SourceBadgeList.tsx
+++ b/components/search/SourceBadgeList.tsx
@@ -11,6 +11,8 @@ import { Icons } from '@/components/ui/Icon';
 import { SourceBadgeItem } from './SourceBadgeItem';
 import { useKeyboardNavigation } from '@/lib/hooks/useKeyboardNavigation';
 
+const EXPAND_KEY = 'kvideo_source_badges_expanded';
+
 interface Source {
   id: string;
   name: string;
@@ -24,13 +26,25 @@ interface SourceBadgeListProps {
 }
 
 export function SourceBadgeList({ sources, selectedSources, onToggleSource }: SourceBadgeListProps) {
-  const [isExpanded, setIsExpanded] = useState(false);
+  const [isExpanded, setIsExpanded] = useState(() => {
+    if (typeof window === 'undefined') return true;
+    const saved = localStorage.getItem(EXPAND_KEY);
+    return saved !== 'false'; // default to expanded
+  });
   const [focusedIndex, setFocusedIndex] = useState(-1);
   const [hasOverflow, setHasOverflow] = useState(false);
   const containerRef = useRef<HTMLDivElement>(null);
   const badgeContainerRef = useRef<HTMLDivElement>(null);
   const badgeRefs = useRef<(HTMLButtonElement | null)[]>([]);
 
+  const toggleExpanded = useCallback(() => {
+    setIsExpanded(prev => {
+      const next = !prev;
+      localStorage.setItem(EXPAND_KEY, String(next));
+      return next;
+    });
+  }, []);
+
   // Keyboard navigation
   useKeyboardNavigation({
     enabled: true,
@@ -101,7 +115,7 @@ export function SourceBadgeList({ sources, selectedSources, onToggleSource }: So
 
         {hasOverflow && (
           <button
-            onClick={() => setIsExpanded(!isExpanded)}
+            onClick={toggleExpanded}
             className="mt-2 text-xs text-[var(--text-color-secondary)] hover:text-[var(--accent-color)]
                      flex items-center gap-1 transition-colors self-start cursor-pointer"
           >
diff --git a/lib/hooks/useTypeBadges.ts b/lib/hooks/useTypeBadges.ts
index 7b14dcf..8172aee 100644
--- a/lib/hooks/useTypeBadges.ts
+++ b/lib/hooks/useTypeBadges.ts
@@ -5,31 +5,50 @@ import type { TypeBadge } from '@/lib/types';
 
 /**
  * Custom hook to automatically collect and track type badges from video results
- * 
+ *
  * Features:
  * - Auto-collects unique type_name values
+ * - Normalizes similar type names (e.g., "动作片" and "动作" merge)
  * - Tracks count per type
  * - Updates dynamically as videos are added/removed
  * - Removes badges when count reaches 0
  * - Supports filtering by selected types
  */
+
+// Normalize type names to merge near-duplicates
+function normalizeTypeName(type: string): string {
+  let t = type.trim();
+  // Remove trailing 片/剧 suffix for grouping (e.g., "动作片" → "动作", "喜剧片" → "喜剧")
+  // But keep standalone names like "电影", "电视剧" etc.
+  if (t.length > 2 && t.endsWith('片')) {
+    t = t.slice(0, -1);
+  }
+  return t;
+}
+
 export function useTypeBadges<T extends { type_name?: string }>(videos: T[]) {
   const [selectedTypes, setSelectedTypes] = useState<Set<string>>(new Set());
 
   // Collect and count type badges from videos
   const typeBadges = useMemo<TypeBadge[]>(() => {
-    const typeMap = new Map<string, number>();
+    const typeMap = new Map<string, { display: string; count: number }>();
 
     videos.forEach(video => {
       if (video.type_name && video.type_name.trim()) {
-        const type = video.type_name.trim();
-        typeMap.set(type, (typeMap.get(type) || 0) + 1);
+        const raw = video.type_name.trim();
+        const normalized = normalizeTypeName(raw);
+        const existing = typeMap.get(normalized);
+        if (existing) {
+          existing.count++;
+        } else {
+          typeMap.set(normalized, { display: raw, count: 1 });
+        }
       }
     });
 
     // Convert to array and sort by count (descending)
     return Array.from(typeMap.entries())
-      .map(([type, count]) => ({ type, count }))
+      .map(([, val]) => ({ type: val.display, count: val.count }))
       .sort((a, b) => b.count - a.count);
   }, [videos]);
 
@@ -39,8 +58,13 @@ export function useTypeBadges<T extends { type_name?: string }>(videos: T[]) {
       return videos;
     }
 
+    // Build a set of normalized selected types
+    const normalizedSelected = new Set(
+      Array.from(selectedTypes).map(normalizeTypeName)
+    );
+
     return videos.filter(video =>
-      video.type_name && selectedTypes.has(video.type_name.trim())
+      video.type_name && normalizedSelected.has(normalizeTypeName(video.type_name.trim()))
     );
   }, [videos, selectedTypes]);
 
diff --git a/lib/store/auth-store.ts b/lib/store/auth-store.ts
index 5401e1f..5d141bb 100644
--- a/lib/store/auth-store.ts
+++ b/lib/store/auth-store.ts
@@ -12,11 +12,12 @@ export type Permission =
   | 'data_management'
   | 'player_settings'
   | 'danmaku_appearance'
-  | 'view_settings';
+  | 'view_settings'
+  | 'iptv_access';
 
 const ROLE_PERMISSIONS: Record<Role, Permission[]> = {
-  super_admin: ['source_management', 'account_management', 'danmaku_api', 'data_management', 'player_settings', 'danmaku_appearance', 'view_settings'],
-  admin: ['player_settings', 'danmaku_appearance', 'view_settings'],
+  super_admin: ['source_management', 'account_management', 'danmaku_api', 'data_management', 'player_settings', 'danmaku_appearance', 'view_settings', 'iptv_access'],
+  admin: ['player_settings', 'danmaku_appearance', 'view_settings', 'iptv_access'],
   viewer: ['view_settings'],
 };
 
@@ -59,6 +60,8 @@ export function clearSession(): void {
   if (typeof window === 'undefined') return;
   sessionStorage.removeItem(SESSION_KEY);
   localStorage.removeItem(SESSION_KEY);
+  // Clear search cache so new session gets fresh results
+  localStorage.removeItem('kvideo_search_cache');
   // Also clear old unlock keys for backward compat cleanup
   sessionStorage.removeItem('kvideo-unlocked');
   localStorage.removeItem('kvideo-unlocked');
diff --git a/package-lock.json b/package-lock.json
index 10ee852..587eb77 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "kvideo",
-  "version": "4.4.1",
+  "version": "4.4.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "kvideo",
-      "version": "4.4.1",
+      "version": "4.4.2",
       "dependencies": {
         "@dnd-kit/core": "^6.3.1",
         "@dnd-kit/sortable": "^10.0.0",
diff --git a/package.json b/package.json
index a8483ed..74c9555 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "kvideo",
-  "version": "4.4.1",
+  "version": "4.4.2",
   "private": true,
   "scripts": {
     "dev": "next dev",