修正带背景图一些文字无法显示的问题

src/app/play/page.tsx

@@ -4670,7 +4670,7 @@ function PlayPageClient() {
         </div>
       )}
 
-      <div className='flex flex-col gap-3 py-4 px-5 lg:px-[3rem] 2xl:px-20'>
+      <div className='relative z-10 flex flex-col gap-3 py-4 px-5 lg:px-[3rem] 2xl:px-20'>
         {/* 第一行：影片标题 */}
         <div className='py-1'>
           <h1 className='text-xl font-semibold text-gray-900 dark:text-gray-100 flex items-center gap-2 flex-wrap'>
@@ -5114,7 +5114,7 @@ function PlayPageClient() {
 
             {/* 选集和换源 - 在移动端始终显示，在 lg 及以上可折叠 */}
             <div
-              className={`h-[300px] lg:h-full md:overflow-hidden transition-all duration-300 ease-in-out ${
+              className={`relative z-10 h-[300px] lg:h-full md:overflow-hidden transition-all duration-300 ease-in-out ${
                 isEpisodeSelectorCollapsed
                   ? 'md:col-span-1 lg:hidden lg:opacity-0 lg:scale-95'
                   : 'md:col-span-1 lg:opacity-100 lg:scale-100'