diff --git a/src/components/EpisodeSelector.tsx b/src/components/EpisodeSelector.tsx
index ec0e182..2c00f68 100644
--- a/src/components/EpisodeSelector.tsx
+++ b/src/components/EpisodeSelector.tsx
@@ -489,7 +489,7 @@ const EpisodeSelector: React.FC<EpisodeSelectorProps> = ({
                               </h3>
                               {/* 标题级别的 tooltip - 第一个元素不显示 */}
                               {index !== 0 && (
-                                <div className='absolute bottom-full left-1/2 transform -translate-x-1/2 mb-2 px-3 py-1 bg-gray-800 text-white text-xs rounded-md shadow-lg opacity-0 invisible group-hover/title:opacity-100 group-hover/title:visible transition-all duration-200 ease-out delay-100 whitespace-nowrap z-[9999] pointer-events-none'>
+                                <div className='absolute bottom-full left-1/2 transform -translate-x-1/2 mb-2 px-3 py-1 bg-gray-800 text-white text-xs rounded-md shadow-lg opacity-0 invisible group-hover/title:opacity-100 group-hover/title:visible transition-all duration-200 ease-out delay-100 whitespace-nowrap z-[500] pointer-events-none'>
                                   {source.title}
                                   <div className='absolute top-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-l-4 border-r-4 border-t-4 border-transparent border-t-gray-800'></div>
                                 </div>