fix：解决移动端 Dialog 滚动问题

app/hooks/useBodyScrollLock.js

@@ -0,0 +1,18 @@
+import { useEffect } from "react";
+
+export function useBodyScrollLock(open) {
+  useEffect(() => {
+    if (!open) return;
+
+    const scrollY = window.scrollY;
+
+    document.body.style.position = "fixed";
+    document.body.style.top = `-${scrollY}px`;
+
+    return () => {
+      document.body.style.position = "";
+      document.body.style.top = "";
+      window.scrollTo(0, scrollY);
+    };
+  }, [open]);
+}