diff --git a/app/api/chat/route.ts b/app/api/chat/route.ts
index 6f1a1aa..0de7d7a 100644
--- a/app/api/chat/route.ts
+++ b/app/api/chat/route.ts
@@ -4,6 +4,21 @@ import { streamText, convertToModelMessages, type UIMessage } from "ai";
 const doubao = createOpenAI({
   baseURL: "https://ark.cn-beijing.volces.com/api/v3",
   apiKey: process.env.DOUBAO_API_KEY || "",
+  fetch: async (url, options) => {
+    // 拦截请求，将 developer 角色转换为 system 角色
+    // 这个 sdk 会自动把 system 等角色转换成 developer...
+    if (options?.body) {
+      const body = JSON.parse(options.body as string);
+      if (body.messages) {
+        body.messages = body.messages.map((msg: any) => ({
+          ...msg,
+          role: msg.role === "developer" ? "system" : msg.role,
+        }));
+      }
+      options.body = JSON.stringify(body);
+    }
+    return fetch(url, options);
+  },
 }).chat;
 
 export async function POST(req: Request) {
@@ -11,6 +26,7 @@ export async function POST(req: Request) {
 
   const result = streamText({
     model: doubao("doubao-seed-1-6-flash-250828"),
+    system: "你是源语奇思（AtomInfinite）开发的人工智能助手 WisModel。",
     messages: convertToModelMessages(messages),
   });
 
diff --git a/app/assistant.tsx b/app/assistant.tsx
index 4274894..c8e6b1c 100644
--- a/app/assistant.tsx
+++ b/app/assistant.tsx
@@ -59,6 +59,11 @@ export const Assistant = () => {
             <div className="flex-1 overflow-hidden">
               <Thread />
             </div>
+            <div className="flex w-full justify-center">
+              <a href="https://beian.miit.gov.cn/" target="_blank">
+                沪ICP备2025110110号-2
+              </a>
+            </div>
           </SidebarInset>
         </div>
       </SidebarProvider>
diff --git a/components/assistant-ui/thread.tsx b/components/assistant-ui/thread.tsx
index da17f61..b771c02 100644
--- a/components/assistant-ui/thread.tsx
+++ b/components/assistant-ui/thread.tsx
@@ -173,7 +173,7 @@ const ThreadSuggestions: FC = () => {
 
 const Composer: FC = () => {
   return (
-    <div className="aui-composer-wrapper sticky bottom-0 mx-auto flex w-full max-w-[var(--thread-max-width)] flex-col gap-4 overflow-visible rounded-t-3xl bg-background pb-4 md:pb-6">
+    <div className="aui-composer-wrapper sticky bottom-0 mx-auto flex w-full max-w-[var(--thread-max-width)] flex-col gap-4 overflow-visible rounded-t-3xl bg-background md:pb-2">
       <ThreadScrollToBottom />
       <ComposerPrimitive.Root className="aui-composer-root relative flex w-full flex-col">
         <ComposerPrimitive.AttachmentDropzone className="aui-composer-attachment-dropzone group/input-group flex w-full flex-col rounded-3xl border border-input bg-background px-1 pt-2 shadow-xs transition-[color,box-shadow] outline-none has-[textarea:focus-visible]:border-ring has-[textarea:focus-visible]:ring-[3px] has-[textarea:focus-visible]:ring-ring/50 data-[dragging=true]:border-dashed data-[dragging=true]:border-ring data-[dragging=true]:bg-accent/50 dark:bg-background">
diff --git a/components/assistant-ui/threadlist-sidebar.tsx b/components/assistant-ui/threadlist-sidebar.tsx
index 911b320..669ce17 100644
--- a/components/assistant-ui/threadlist-sidebar.tsx
+++ b/components/assistant-ui/threadlist-sidebar.tsx
@@ -1,10 +1,9 @@
 import * as React from "react";
-import { Github, MessagesSquare } from "lucide-react";
+import { MessagesSquare } from "lucide-react";
 import Link from "next/link";
 import {
   Sidebar,
   SidebarContent,
-  SidebarFooter,
   SidebarHeader,
   SidebarMenu,
   SidebarMenuButton,