优化楼层切换滑动组件

src/components/navigation/GuideMapShell.vue

@@ -894,6 +894,8 @@ defineExpose({
   box-sizing: border-box;
   overflow-y: auto;
   overscroll-behavior: contain;
+  -webkit-overflow-scrolling: touch;
+  touch-action: pan-y;
   scrollbar-width: none;
   background: rgba(255, 255, 255, 0.84);
   border: 1px solid #dde5df;
@@ -915,7 +917,9 @@ defineExpose({
 }
 
 .floor-header {
-  position: relative;
+  position: sticky;
+  top: 0;
+  z-index: 1;
   min-height: 50px;
   padding: 7px 4px 6px;
   display: flex;