diff --git a/apps/player/src/components/desktop/DesktopShell.vue b/apps/player/src/components/desktop/DesktopShell.vue
index d1308a4..2dae93c 100644
--- a/apps/player/src/components/desktop/DesktopShell.vue
+++ b/apps/player/src/components/desktop/DesktopShell.vue
@@ -50,6 +50,9 @@ const showBetSlipRail = computed(() => {
   const p = route.path;
   if (p === '/bets' || p.startsWith('/bets/')) return false;
   if (p.startsWith('/wallet') || p.startsWith('/profile')) return false;
+  if (route.params.id && (p.startsWith('/announcements/') || p.startsWith('/messages/'))) {
+    return false;
+  }
   return true;
 });
 
diff --git a/apps/player/src/views/MobileAnnouncementDetailView.vue b/apps/player/src/views/MobileAnnouncementDetailView.vue
index 906c92e..1992542 100644
--- a/apps/player/src/views/MobileAnnouncementDetailView.vue
+++ b/apps/player/src/views/MobileAnnouncementDetailView.vue
@@ -114,9 +114,6 @@ watch(announcementId, () => {
     </header>
 
     <header v-else class="page-header page-header--hub">
-      <button type="button" class="back-btn" :aria-label="t('announcements.back')" @click="goList">
-        ‹ {{ t('announcements.view_all') }}
-      </button>
       <h1>{{ t('announcements.detail_title') }}</h1>
     </header>
 
diff --git a/apps/player/src/views/MobileAnnouncementListView.vue b/apps/player/src/views/MobileAnnouncementListView.vue
index af5df62..46e3517 100644
--- a/apps/player/src/views/MobileAnnouncementListView.vue
+++ b/apps/player/src/views/MobileAnnouncementListView.vue
@@ -62,7 +62,14 @@ onActivated(() => {
 <template>
   <div class="announce-page" :class="{ 'is-embedded': embedded }">
     <header class="page-header">
-      <button type="button" class="back-btn" :aria-label="t('announcements.back')" @click="onBack">‹</button>
+      <button
+        type="button"
+        class="back-btn"
+        :aria-label="t('announcements.back')"
+        @click="onBack"
+      >
+        ‹
+      </button>
       <h1>{{ t('announcements.title') }}</h1>
     </header>