fix: 调整面包屑导航的显示逻辑

- 在移动端隐藏面包屑导航

app/pages/support/contact-us.vue

@@ -87,4 +87,10 @@
   :deep(.markdown-body ul) {
     list-style-type: none;
   }
+
+  @media (max-width: 768px) {
+    .breadcrumb {
+      display: none;
+    }
+  }
 </style>

app/pages/support/documents.vue

@@ -226,6 +226,12 @@
     margin-top: 2rem;
   }
 
+  @media (max-width: 768px) {
+    .breadcrumb {
+      display: none;
+    }
+  }
+
   :deep(.el-pagination) {
     .btn-prev,
     .btn-next {

app/pages/support/faq.vue

@@ -223,6 +223,12 @@
     margin-top: 2rem;
   }
 
+  @media (max-width: 768px) {
+    .breadcrumb {
+      display: none;
+    }
+  }
+
   :deep(.el-pagination) {
     .btn-prev,
     .btn-next {

app/pages/support/index.vue

@@ -137,5 +137,9 @@
       grid-template-columns: 1fr;
       gap: 20px;
     }
+
+    .breadcrumb {
+      display: none;
+    }
   }
 </style>