重新设计弹出组件的层次布局，非常驻窗口将置于顶部；新增变量控制水流图层的显示；完善历史数据面板的设计

src/app/OlMap/Controls/Zoom.tsx

@@ -30,7 +30,7 @@ const Zoom: React.FC = () => {
   };
 
   return (
-    <div className="absolute right-4 bottom-8 z-10">
+    <div className="absolute right-4 bottom-8 z-1300">
       <div className="w-8 h-26 flex flex-col gap-2 items-center">
         <div className="w-8 h-8 bg-gray-50 flex items-center justify-center rounded-xl drop-shadow-xl shadow-black">
           <button