fix: 解决有多个导航烂的问题

src/views/EventDetail/index.js

@@ -65,7 +65,8 @@ import EventHeader from './components/EventHeader';
 import RelatedConcepts from './components/RelatedConcepts';
 import HistoricalEvents from './components/HistoricalEvents';
 import RelatedStocks from './components/RelatedStocks';
-import HomeNavbar from '../../components/Navbars/HomeNavbar';
+// Navigation bar now provided by MainLayout
+// import HomeNavbar from '../../components/Navbars/HomeNavbar';
 import SubscriptionUpgradeModal from '../../components/SubscriptionUpgradeModal';
 import { useAuth } from '../../contexts/AuthContext';
 import { useSubscription } from '../../hooks/useSubscription';
@@ -563,7 +564,7 @@ const EventDetail = () => {
     // 主要内容
     return (
         <Box bg={bgColor} minH="100vh" w="100%">
-            <HomeNavbar />
+            {/* Navigation bar provided by MainLayout */}
             <Container maxW="7xl" py={8}>
                 <VStack spacing={6} align="stretch">
                     {/* 事件基本信息 */}