diff --git a/src/views/Layout/index.jsx b/src/views/Layout/index.jsx
index a90b6349696..fb6cf8656f8 100644
--- a/src/views/Layout/index.jsx
+++ b/src/views/Layout/index.jsx
@@ -1,3 +1,4 @@
+import React, { useEffect } from "react";
 import { ConfigProvider, FloatButton } from "antd";
 import { useParams, Navigate, Outlet } from "react-router-dom";
 import { NavBar, Footer } from "../../components";
@@ -17,7 +18,47 @@ const Content = () => {
 };
 
 const Layout = () => {
+  useEffect(() => {
+    // Polyfill for crypto.randomUUID (required for kapa.ai in non-secure contexts like HTTP localhost)
+    if (typeof window.crypto.randomUUID !== "function") {
+      window.crypto.randomUUID = function () {
+        return ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, (c) =>
+          (
+            c ^
+            (crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4)))
+          ).toString(16)
+        );
+      };
+    }
+
+    // Prevent duplicate script injection
+    if (document.getElementById("kapa-ai-widget")) {
+      return;
+    }
+
+    const script = document.createElement("script");
+    script.id = "kapa-ai-widget";
+    script.src = "https://widget.kapa.ai/kapa-widget.bundle.js";
+    script.setAttribute("data-website-id", "e3268e5d-c0f1-4e71-819c-c60ebb2215a7");
+    script.setAttribute("data-project-name", "Apache DolphinScheduler");
+    script.setAttribute("data-project-color", "#0097E0");
+    script.setAttribute("data-project-logo", "https://dolphinscheduler.apache.org/images/logo_400x400.jpg");
+    script.setAttribute("data-modal-disclaimer", "This is a custom LLM for Apache DolphinScheduler with access to all developer Documentation, Blog, GitHub issues and discussions.");
+    script.setAttribute("data-modal-example-questions", "Why we need DolphinScheduler?,How to deploy DolphinScheduler?,How to submit task?,How to contribute?");
+    script.async = true;
+
+    document.body.appendChild(script);
+
+    return () => {
+      const existingScript = document.getElementById("kapa-ai-widget");
+      if (existingScript) {
+        document.body.removeChild(existingScript);
+      }
+    };
+  }, []);
+
   const params = useParams();
+
   if (params.locale && ["en-us", "zh-cn"].includes(params.locale)) {
     const locales = JSON.parse(sessionStorage.getItem("locales")) || {};
 
@@ -43,7 +84,9 @@ const Layout = () => {
           <article className="ds-main" id="ds-scroll-content">
             <Content />
             <FloatButton.BackTop
-              target={() => document.getElementById("ds-scroll-content")}
+              target={() =>
+                document.getElementById("ds-scroll-content")
+              }
             />
             <Footer />
           </article>
@@ -56,4 +99,4 @@ const Layout = () => {
   return <Navigate to={`/${locale}`} />;
 };
 
-export default Layout;
+export default Layout;
\ No newline at end of file