diff --git a/assets/javascripts/app.js b/assets/javascripts/app.js
index db9de37..9d6815e 100644
--- a/assets/javascripts/app.js
+++ b/assets/javascripts/app.js
@@ -1216,6 +1216,47 @@ $(function() {
         fixAccessibilityAll();
     }, 800);
 });
+// 修正漢堡選單按鈕無障礙
+$(function() {
+  function fixNavbarToggleA11y() {
+    var isEn = $('html').attr('lang') === 'en';
+    var label = isEn ? '開啟或關閉導覽選單' : '開啟或關閉導覽選單';
+
+    $('.navbar-toggle').each(function() {
+      var $btn = $(this);
+
+      // 修正 title
+      $btn.attr('title', label);
+
+      // 修正 sr-only 文字（原本是 "Toggle navigation"）
+      var $sr = $btn.find('.sr-only');
+      if ($sr.length) {
+        $sr.text(label);
+      } else {
+        $btn.prepend('<span class="sr-only">' + label + '</span>');
+      }
+
+      // 補上 aria-label
+      $btn.attr('aria-label', label);
+
+      // 補上 aria-expanded（依據目前是否展開）
+      if (!$btn.attr('aria-expanded')) {
+        var isExpanded = !$btn.hasClass('collapsed');
+        $btn.attr('aria-expanded', isExpanded ? 'true' : 'false');
+      }
+
+      // 點擊時同步更新 aria-expanded
+      $btn.off('click.navA11y').on('click.navA11y', function() {
+        setTimeout(function() {
+          var isExpanded = !$('.navbar-toggle').hasClass('collapsed');
+          $('.navbar-toggle').attr('aria-expanded', isExpanded ? 'true' : 'false');
+        }, 50);
+      });
+    });
+  }
+
+  setTimeout(fixNavbarToggleA11y, 500);
+});
 
  
 $(function() {
diff --git a/assets/stylesheets/template/modules/announcement.scss b/assets/stylesheets/template/modules/announcement.scss
index 253b9d5..86e1cf0 100644
--- a/assets/stylesheets/template/modules/announcement.scss
+++ b/assets/stylesheets/template/modules/announcement.scss
@@ -9,7 +9,14 @@
 // Announcement widget
 // ## Gerneral styles for widgets
 td.i-annc__postdate {
-    min-width: 7em;
+    min-width: 8em;
+}
+.i-annc__table{
+  @media (max-width: 480px){
+    td,th{
+      width: auto!important;
+    }
+  }
 }
 strong.carousel__description{
   color: #333!important;