chore: bump styles cache version

egbim/index.html

@@ -5,7 +5,7 @@
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <meta name="description" content="EG-BIM Q&A 문의 게시판">
   <title>EG-BIM Q&A | 바론컨설턴트</title>
-  <link rel="stylesheet" href="../assets/styles.css?v=20260929-2">
+  <link rel="stylesheet" href="../assets/styles.css?v=20260929-3">
 </head>
 <body>
   <main class="qa-list-page">