diff --git a/404.html b/404.html
index 68da5c3..492c6bf 100644
--- a/404.html
+++ b/404.html
@@ -28,7 +28,7 @@
     
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     
     <style>
         .error-container {
@@ -244,7 +244,7 @@
     </div>
     
     <script src="js/i18n.js"></script>
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script>
         // 검색 기능
         document.getElementById('errorSearch').addEventListener('keypress', function(e) {
diff --git a/about.html b/about.html
index 0b8a9ba..aac0135 100644
--- a/about.html
+++ b/about.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/about.css">
 
     
@@ -411,6 +411,6 @@
 
     <!-- JavaScript -->
     <script src="js/i18n.js"></script>
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/backgrounds.html b/backgrounds.html
index 877737c..f856da8 100644
--- a/backgrounds.html
+++ b/backgrounds.html
@@ -34,7 +34,7 @@
 
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/backgrounds.css">
 
     
@@ -243,7 +243,7 @@
     </footer>
 
     <!-- JavaScript -->
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script src="js/backgrounds.js"></script>
 
 
diff --git a/contact.html b/contact.html
index 3ebb12b..ec7bfd4 100644
--- a/contact.html
+++ b/contact.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/contact.css">
 
     
@@ -516,7 +516,7 @@
 
     <!-- JavaScript -->
     <script src="js/i18n.js"></script>
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script src="js/contact.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/css/common.css b/css/common.css
index 631c70c..1de7370 100644
--- a/css/common.css
+++ b/css/common.css
@@ -959,7 +959,7 @@ body {
 @media (max-width: 768px) {
     .nav-menu {
         position: fixed;
-        left: -100%;
+        left: 0;
         top: var(--navbar-height);
         flex-direction: column;
         background: rgba(255, 255, 255, 0.98);
@@ -967,15 +967,23 @@ body {
         -webkit-backdrop-filter: blur(20px);
         width: 100%;
         text-align: center;
-        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
         box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
-        padding: var(--spacing-lg) 0;
+        padding: 0;
         z-index: 999;
-        gap: 0.25rem;
+        gap: 0;
+        max-height: 0;
+        overflow: hidden;
+        opacity: 0;
+        transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
+                    opacity 0.25s ease,
+                    padding 0.35s cubic-bezier(0.4, 0, 0.2, 1);
     }
 
     .nav-menu.active {
-        left: 0;
+        max-height: 500px;
+        opacity: 1;
+        padding: var(--spacing-md) 0;
+        gap: 0.25rem;
     }
 
     .nav-link {
diff --git a/en/404.html b/en/404.html
index 99ece0e..2d914c5 100644
--- a/en/404.html
+++ b/en/404.html
@@ -28,7 +28,7 @@
     
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     
     <style>
         .error-container {
@@ -247,7 +247,7 @@
     </div>
     
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script>
         // 검색 기능
         document.getElementById('errorSearch').addEventListener('keypress', function(e) {
diff --git a/en/about.html b/en/about.html
index 198cc32..cd3fc95 100644
--- a/en/about.html
+++ b/en/about.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/about.css">
 
     
@@ -416,6 +416,6 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/en/backgrounds.html b/en/backgrounds.html
index 66f864f..0b2b5a4 100644
--- a/en/backgrounds.html
+++ b/en/backgrounds.html
@@ -34,7 +34,7 @@
 
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/backgrounds.css">
 
     
@@ -248,7 +248,7 @@
     </footer>
 
     <!-- JavaScript -->
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/backgrounds.js"></script>
 
 
diff --git a/en/contact.html b/en/contact.html
index 35d78cd..0ada49b 100644
--- a/en/contact.html
+++ b/en/contact.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/contact.css">
 
     
@@ -520,7 +520,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/contact.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/en/gallery.html b/en/gallery.html
index eb624e7..2382cfd 100644
--- a/en/gallery.html
+++ b/en/gallery.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/gallery.css">
 
     
@@ -322,7 +322,7 @@
     </footer>
 
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/gallery.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/en/index.html b/en/index.html
index d4e8045..93d435e 100644
--- a/en/index.html
+++ b/en/index.html
@@ -38,7 +38,7 @@
     <link rel="dns-prefetch" href="//www.youtube.com">
     
     <!-- Preload 중요 리소스 -->
-    <link rel="preload" href="/css/common.css" as="style">
+    <link rel="preload" href="/css/common.css?v=20260313" as="style">
     <link rel="preload" href="/css/main.css" as="style">
     
     <!-- Security Headers (기본 설정) -->
@@ -176,7 +176,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/main.css">
     <link rel="stylesheet" href="/css/contact.css">
     <link rel="stylesheet" href="/css/popup.css?v=2">
@@ -1088,7 +1088,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/contact.js"></script>
     <script src="/js/main.js"></script>
     <script src="/js/popup.js"></script>
diff --git a/en/portfolio.html b/en/portfolio.html
index 2741cad..ba460bd 100644
--- a/en/portfolio.html
+++ b/en/portfolio.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/portfolio.css">
 
     <!-- SOOP VOD 구조화 데이터 -->
@@ -727,7 +727,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/portfolio.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/en/props.html b/en/props.html
index f7ebae8..81a85e5 100644
--- a/en/props.html
+++ b/en/props.html
@@ -34,7 +34,7 @@
 
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/props.css">
 
     
@@ -243,7 +243,7 @@
     </footer>
 
     <!-- JavaScript -->
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/props.js"></script>
 
 
diff --git a/en/qna.html b/en/qna.html
index 13767fd..cac01ad 100644
--- a/en/qna.html
+++ b/en/qna.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/qna.css">
 
     
@@ -526,7 +526,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/qna.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/en/services.html b/en/services.html
index 33d7860..dfe5804 100644
--- a/en/services.html
+++ b/en/services.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/services.css">
 
     
@@ -1130,7 +1130,7 @@ as a follow-up service (separate consultation)</p>
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/services.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/gallery.html b/gallery.html
index 5b2990b..3f83cae 100644
--- a/gallery.html
+++ b/gallery.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/gallery.css">
 
     
@@ -317,7 +317,7 @@
     </footer>
 
     <script src="js/i18n.js"></script>
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script src="js/gallery.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/index.html b/index.html
index 24b514c..a51d53b 100644
--- a/index.html
+++ b/index.html
@@ -38,7 +38,7 @@
     <link rel="dns-prefetch" href="//www.youtube.com">
     
     <!-- Preload 중요 리소스 -->
-    <link rel="preload" href="css/common.css" as="style">
+    <link rel="preload" href="css/common.css?v=20260313" as="style">
     <link rel="preload" href="css/main.css" as="style">
     
     <!-- Security Headers (기본 설정) -->
@@ -176,7 +176,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/main.css">
     <link rel="stylesheet" href="css/popup.css?v=2">
     <link rel="stylesheet" href="css/contact.css">
@@ -1097,7 +1097,7 @@
 
     <!-- JavaScript -->
     <script src="js/i18n.js"></script>
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script src="js/contact.js"></script>
     <script src="js/main.js"></script>
     <script src="js/popup.js"></script>
diff --git a/ja/404.html b/ja/404.html
index e5d9b1f..5e9ff0a 100644
--- a/ja/404.html
+++ b/ja/404.html
@@ -28,7 +28,7 @@
     
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     
     <style>
         .error-container {
@@ -247,7 +247,7 @@
     </div>
     
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script>
         // 검색 기능
         document.getElementById('errorSearch').addEventListener('keypress', function(e) {
diff --git a/ja/about.html b/ja/about.html
index ce7712a..fad5b70 100644
--- a/ja/about.html
+++ b/ja/about.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/about.css">
 
     
@@ -416,6 +416,6 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/ja/backgrounds.html b/ja/backgrounds.html
index cf8f6d9..8623b4a 100644
--- a/ja/backgrounds.html
+++ b/ja/backgrounds.html
@@ -34,7 +34,7 @@
 
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/backgrounds.css">
 
     
@@ -248,7 +248,7 @@
     </footer>
 
     <!-- JavaScript -->
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/backgrounds.js"></script>
 
 
diff --git a/ja/contact.html b/ja/contact.html
index 058ee8b..ca3865c 100644
--- a/ja/contact.html
+++ b/ja/contact.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/contact.css">
 
     
@@ -520,7 +520,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/contact.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/ja/gallery.html b/ja/gallery.html
index fe06ef8..1543db5 100644
--- a/ja/gallery.html
+++ b/ja/gallery.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/gallery.css">
 
     
@@ -322,7 +322,7 @@
     </footer>
 
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/gallery.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/ja/index.html b/ja/index.html
index de23d6d..c1ad4be 100644
--- a/ja/index.html
+++ b/ja/index.html
@@ -38,7 +38,7 @@
     <link rel="dns-prefetch" href="//www.youtube.com">
     
     <!-- Preload 중요 리소스 -->
-    <link rel="preload" href="/css/common.css" as="style">
+    <link rel="preload" href="/css/common.css?v=20260313" as="style">
     <link rel="preload" href="/css/main.css" as="style">
     
     <!-- Security Headers (기본 설정) -->
@@ -176,7 +176,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/main.css">
     <link rel="stylesheet" href="/css/contact.css">
     <link rel="stylesheet" href="/css/popup.css?v=2">
@@ -1088,7 +1088,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/contact.js"></script>
     <script src="/js/main.js"></script>
     <script src="/js/popup.js"></script>
diff --git a/ja/portfolio.html b/ja/portfolio.html
index 39652af..8904de2 100644
--- a/ja/portfolio.html
+++ b/ja/portfolio.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/portfolio.css">
 
     <!-- SOOP VOD 구조화 데이터 -->
@@ -727,7 +727,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/portfolio.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/ja/props.html b/ja/props.html
index 5a9bec4..55a507a 100644
--- a/ja/props.html
+++ b/ja/props.html
@@ -34,7 +34,7 @@
 
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/props.css">
 
     
@@ -243,7 +243,7 @@
     </footer>
 
     <!-- JavaScript -->
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/props.js"></script>
 
 
diff --git a/ja/qna.html b/ja/qna.html
index 5904625..d7ce8d3 100644
--- a/ja/qna.html
+++ b/ja/qna.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/qna.css">
 
     
@@ -526,7 +526,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/qna.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/ja/services.html b/ja/services.html
index 5a23007..cc1e1a3 100644
--- a/ja/services.html
+++ b/ja/services.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/services.css">
 
     
@@ -1130,7 +1130,7 @@ Mingle Studioまたは依頼者帰属を選択可能です</p>
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/services.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/js/common.js b/js/common.js
index 27a85b8..9fdc833 100644
--- a/js/common.js
+++ b/js/common.js
@@ -89,8 +89,12 @@ async function loadComponents() {
 function initializeNavigation() {
     const hamburger = document.querySelector('.hamburger');
     const navMenu = document.querySelector('.nav-menu');
-    
+
     if (hamburger && navMenu) {
+        // 중복 바인딩 방지
+        if (hamburger._navInitialized) return;
+        hamburger._navInitialized = true;
+
         hamburger.addEventListener('click', function() {
             const isActive = hamburger.classList.toggle('active');
             navMenu.classList.toggle('active');
diff --git a/portfolio.html b/portfolio.html
index 63302f9..46c7bb2 100644
--- a/portfolio.html
+++ b/portfolio.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     <!-- CSS -->
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/portfolio.css">
 
     <!-- SOOP VOD 구조화 데이터 -->
@@ -724,7 +724,7 @@
 
     <!-- JavaScript -->
     <script src="js/i18n.js"></script>
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script src="js/portfolio.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/props.html b/props.html
index 97450f5..8defb6c 100644
--- a/props.html
+++ b/props.html
@@ -34,7 +34,7 @@
 
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/props.css">
 
     
@@ -238,7 +238,7 @@
     </footer>
 
     <!-- JavaScript -->
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script src="js/props.js"></script>
 
 
diff --git a/qna.html b/qna.html
index e258f0a..71992a8 100644
--- a/qna.html
+++ b/qna.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/qna.css">
 
     
@@ -559,7 +559,7 @@
 
     <!-- JavaScript -->
     <script src="js/i18n.js"></script>
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script src="js/qna.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/services.html b/services.html
index 7fd6dbc..83cd79b 100644
--- a/services.html
+++ b/services.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     <!-- CSS -->
-    <link rel="stylesheet" href="css/common.css">
+    <link rel="stylesheet" href="css/common.css?v=20260313">
     <link rel="stylesheet" href="css/services.css">
 
     
@@ -1124,7 +1124,7 @@
 
     <!-- JavaScript -->
     <script src="js/i18n.js"></script>
-    <script src="js/common.js"></script>
+    <script src="js/common.js?v=20260313"></script>
     <script src="js/services.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/zh/404.html b/zh/404.html
index c663cca..b232741 100644
--- a/zh/404.html
+++ b/zh/404.html
@@ -28,7 +28,7 @@
     
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     
     <style>
         .error-container {
@@ -247,7 +247,7 @@
     </div>
     
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script>
         // 검색 기능
         document.getElementById('errorSearch').addEventListener('keypress', function(e) {
diff --git a/zh/about.html b/zh/about.html
index 5aaf57e..6a64cac 100644
--- a/zh/about.html
+++ b/zh/about.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/about.css">
 
     
@@ -416,6 +416,6 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/zh/backgrounds.html b/zh/backgrounds.html
index 26e31be..6b2473f 100644
--- a/zh/backgrounds.html
+++ b/zh/backgrounds.html
@@ -34,7 +34,7 @@
 
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/backgrounds.css">
 
     
@@ -248,7 +248,7 @@
     </footer>
 
     <!-- JavaScript -->
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/backgrounds.js"></script>
 
 
diff --git a/zh/contact.html b/zh/contact.html
index 9f2f5cc..5f0549f 100644
--- a/zh/contact.html
+++ b/zh/contact.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/contact.css">
 
     
@@ -520,7 +520,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/contact.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/zh/gallery.html b/zh/gallery.html
index 3569368..552bacc 100644
--- a/zh/gallery.html
+++ b/zh/gallery.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/gallery.css">
 
     
@@ -322,7 +322,7 @@
     </footer>
 
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/gallery.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/zh/index.html b/zh/index.html
index ea62a32..f86a66a 100644
--- a/zh/index.html
+++ b/zh/index.html
@@ -38,7 +38,7 @@
     <link rel="dns-prefetch" href="//www.youtube.com">
     
     <!-- Preload 중요 리소스 -->
-    <link rel="preload" href="/css/common.css" as="style">
+    <link rel="preload" href="/css/common.css?v=20260313" as="style">
     <link rel="preload" href="/css/main.css" as="style">
     
     <!-- Security Headers (기본 설정) -->
@@ -176,7 +176,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/main.css">
     <link rel="stylesheet" href="/css/contact.css">
     <link rel="stylesheet" href="/css/popup.css?v=2">
@@ -1088,7 +1088,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/contact.js"></script>
     <script src="/js/main.js"></script>
     <script src="/js/popup.js"></script>
diff --git a/zh/portfolio.html b/zh/portfolio.html
index eb324ef..93fb82b 100644
--- a/zh/portfolio.html
+++ b/zh/portfolio.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/portfolio.css">
 
     <!-- SOOP VOD 구조화 데이터 -->
@@ -727,7 +727,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/portfolio.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/zh/props.html b/zh/props.html
index 764108e..3379d12 100644
--- a/zh/props.html
+++ b/zh/props.html
@@ -34,7 +34,7 @@
 
     <!-- CSS -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" integrity="sha512-Avb2QiuDEEvB4bZJYdft2mNjVShBftLGPg8YJ04IY4YZ7C7BC9XkjsTBdQ1B8TAVxT2BOxqIRkVvNs/FNRs0w==" crossorigin="anonymous" referrerpolicy="no-referrer">
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/props.css">
 
     
@@ -243,7 +243,7 @@
     </footer>
 
     <!-- JavaScript -->
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/props.js"></script>
 
 
diff --git a/zh/qna.html b/zh/qna.html
index 5fb2082..519e8ef 100644
--- a/zh/qna.html
+++ b/zh/qna.html
@@ -60,7 +60,7 @@
     <!-- Icons -->
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/qna.css">
 
     
@@ -526,7 +526,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/qna.js"></script>
 
 </body></html>
\ No newline at end of file
diff --git a/zh/services.html b/zh/services.html
index 21c3d14..2a0b402 100644
--- a/zh/services.html
+++ b/zh/services.html
@@ -61,7 +61,7 @@
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css" rel="stylesheet">
     
     <!-- CSS -->
-    <link rel="stylesheet" href="/css/common.css">
+    <link rel="stylesheet" href="/css/common.css?v=20260313">
     <link rel="stylesheet" href="/css/services.css">
 
     
@@ -1130,7 +1130,7 @@
 
     <!-- JavaScript -->
     <script src="/js/i18n.js"></script>
-    <script src="/js/common.js"></script>
+    <script src="/js/common.js?v=20260313"></script>
     <script src="/js/services.js"></script>
 
 </body></html>
\ No newline at end of file