fix support issue 3

src/pages/support/components/AdminSupportMessages.vue

@@ -911,7 +911,6 @@ AdminSupport .admin-bubble__image-wrap {
 .admin-day-group {
   display: block;
   position: relative;
-  isolation: isolate;
 }
 
 .admin-day-sticky {
@@ -921,11 +920,8 @@ AdminSupport .admin-bubble__image-wrap {
   display: flex;
   justify-content: center;
   pointer-events: none;
-  /* نوار تمام‌عرض مات تا تاریخ بلند زیر «امروز/دیروز» از کنار دیده نشود */
-  width: 100%;
-  padding: 8px 0;
-  margin: 0 0 4px;
-  background: var(--admin-bg-subtle, #fafafa);
+  padding: 4px 0 8px;
+  margin-bottom: 4px;
 }
 
 .admin-day-chip {
@@ -1884,8 +1880,7 @@ html.is-dark .admin-messages::-webkit-scrollbar-thumb {
 }
 
 html.is-dark .admin-messages-loading,
-html.is-dark .admin-jump-bottom,
-html.is-dark .admin-day-sticky {
+html.is-dark .admin-jump-bottom {
   background: var(--admin-bg-subtle, #18181b);
 }