diff --git a/frontend/src/app/workspace/chats/[thread_id]/page.tsx b/frontend/src/app/workspace/chats/[thread_id]/page.tsx
index 39fea196..4f3804bb 100644
--- a/frontend/src/app/workspace/chats/[thread_id]/page.tsx
+++ b/frontend/src/app/workspace/chats/[thread_id]/page.tsx
@@ -27,7 +27,6 @@ import { DevTodoList } from "@/components/workspace/dev-todo-list";
 import { IframeTestPanel } from "@/components/workspace/iframe-test-panel";
 import { InputBox } from "@/components/workspace/input-box";
 import { MessageList } from "@/components/workspace/messages";
-import { MessageListSkeleton } from "@/components/workspace/messages/skeleton";
 import { ThreadContext } from "@/components/workspace/messages/context";
 import { ThreadTitle } from "@/components/workspace/thread-title";
 import { TodoList } from "@/components/workspace/todo-list";
@@ -165,10 +164,6 @@ export default function ChatPage() {
 
   const [hasSubmitted, setHasSubmitted] = useState(false);
   const suppressExistingThreadPrefetchUi = reuseExistingThread && !hasSubmitted;
-  const suppressNewThreadSubmitUi =
-    isNewThread && createNewSession && hasSubmitted;
-  const suppressConversationUi =
-    suppressExistingThreadPrefetchUi || suppressNewThreadSubmitUi;
 
   useEffect(() => {
     const pageTitle = isNewThread
@@ -176,7 +171,7 @@ export default function ChatPage() {
       : thread.values?.title && thread.values.title !== "Untitled"
         ? thread.values.title
         : t.pages.untitled;
-    if (thread.isThreadLoading && !suppressConversationUi) {
+    if (thread.isThreadLoading && !suppressExistingThreadPrefetchUi) {
       document.title = `Loading... - ${t.pages.appName}`;
     } else {
       document.title = `${pageTitle} - ${t.pages.appName}`;
@@ -188,21 +183,19 @@ export default function ChatPage() {
     t.pages.appName,
     thread.values.title,
     thread.isThreadLoading,
-    suppressConversationUi,
+    suppressExistingThreadPrefetchUi,
   ]);
 
   const [autoSelectFirstArtifact, setAutoSelectFirstArtifact] = useState(true);
   useEffect(() => {
-    if (!suppressConversationUi) {
-      setArtifacts(thread.values.artifacts);
-      if (
-        env.NEXT_PUBLIC_STATIC_WEBSITE_ONLY === "true" &&
-        autoSelectFirstArtifact
-      ) {
-        if (thread?.values?.artifacts?.length > 0) {
-          setAutoSelectFirstArtifact(false);
-          selectArtifact(thread.values.artifacts[0]!);
-        }
+    setArtifacts(thread.values.artifacts);
+    if (
+      env.NEXT_PUBLIC_STATIC_WEBSITE_ONLY === "true" &&
+      autoSelectFirstArtifact
+    ) {
+      if (thread?.values?.artifacts?.length > 0) {
+        setAutoSelectFirstArtifact(false);
+        selectArtifact(thread.values.artifacts[0]!);
       }
     }
   }, [
@@ -262,7 +255,7 @@ export default function ChatPage() {
       <div
         className={cn(
           "m-auto flex h-screen min-h-svh overflow-hidden rounded-t-[20px] transition-[width] duration-300 ease-in-out",
-          artifactsOpen ? "w-full" : "w-[50%]",
+          artifactsOpen ? "w-full" : "w-[70%]",
         )}
       >
         <div className="relative flex size-full min-h-0 justify-between rounded-t-[20px]">
@@ -354,7 +347,7 @@ export default function ChatPage() {
                   <MessageList
                     className={cn(
                       "size-full",
-                      (!isNewThread || hasSubmitted) && "pt-10",
+                      (!isNewThread || hasSubmitted) && "pt-[20px]",
                     )}
                     threadId={threadId}
                     thread={thread}
diff --git a/frontend/src/components/ai-elements/artifact.tsx b/frontend/src/components/ai-elements/artifact.tsx
index c02eb5ee..633b4470 100644
--- a/frontend/src/components/ai-elements/artifact.tsx
+++ b/frontend/src/components/ai-elements/artifact.tsx
@@ -141,6 +141,6 @@ export const ArtifactContent = ({
   ...props
 }: ArtifactContentProps) => (
   <div className="min-h-0 flex-1 overflow-auto">
-    <div className={cn("mb-[208px] p-4", className)} {...props} />
+    <div className={cn("mb-[150px] p-4", className)} {...props} />
   </div>
 );
diff --git a/frontend/src/components/ai-elements/conversation.tsx b/frontend/src/components/ai-elements/conversation.tsx
index 7afa8be0..28ed3d70 100644
--- a/frontend/src/components/ai-elements/conversation.tsx
+++ b/frontend/src/components/ai-elements/conversation.tsx
@@ -11,7 +11,7 @@ export type ConversationProps = ComponentProps<typeof StickToBottom>;
 
 export const Conversation = ({ className, ...props }: ConversationProps) => (
   <StickToBottom
-    className={cn("relative flex-1 overflow-y-hidden", className)}
+    className={cn("relative flex-1 overflow-y-hidden mt-[60px]", className)}
     initial="smooth"
     resize="smooth"
     role="log"
diff --git a/frontend/src/components/ai-elements/message.tsx b/frontend/src/components/ai-elements/message.tsx
index 8f235da3..6857ab31 100644
--- a/frontend/src/components/ai-elements/message.tsx
+++ b/frontend/src/components/ai-elements/message.tsx
@@ -29,7 +29,7 @@ export const Message = ({ className, from, ...props }: MessageProps) => (
     className={cn(
       "group flex w-full flex-col gap-2 rounded-[10px] p-[20px]",
       from === "user"
-        ? "is-user ml-auto justify-end"
+        ? "is-user px-0 ml-auto justify-end"
         : "is-assistant bg-[#ffffff]",
       className,
     )}
diff --git a/frontend/src/components/ui/aurora-text.tsx b/frontend/src/components/ui/aurora-text.tsx
index f8e475a5..eb32cce2 100644
--- a/frontend/src/components/ui/aurora-text.tsx
+++ b/frontend/src/components/ui/aurora-text.tsx
@@ -7,6 +7,7 @@ interface AuroraTextProps {
   className?: string;
   colors?: string[];
   speed?: number;
+  style?: React.CSSProperties;
 }
 
 export const AuroraText = memo(
@@ -15,6 +16,7 @@ export const AuroraText = memo(
     className = "",
     colors = ["#FF0080", "#7928CA", "#0070F3", "#38bdf8"],
     speed = 1,
+    style,
   }: AuroraTextProps) => {
     const gradientStyle = {
       backgroundImage: `linear-gradient(135deg, ${colors.join(", ")}, ${
@@ -26,7 +28,7 @@ export const AuroraText = memo(
     };
 
     return (
-      <span className={`relative inline-block ${className}`}>
+      <span className={`relative inline-block ${className}`} style={style}>
         <span className="sr-only">{children}</span>
         <span
           className="animate-aurora relative bg-size-[200%_auto] bg-clip-text text-transparent"
diff --git a/frontend/src/components/ui/input-group.tsx b/frontend/src/components/ui/input-group.tsx
index 86505606..392738be 100644
--- a/frontend/src/components/ui/input-group.tsx
+++ b/frontend/src/components/ui/input-group.tsx
@@ -14,7 +14,7 @@ function InputGroup({ className, ...props }: React.ComponentProps<"div">) {
       data-slot="input-group"
       role="group"
       className={cn(
-        "group/input-group dark:bg-background/80 relative flex w-full max-w-[720px] items-center overflow-hidden rounded-md bg-[#FBFAFC] shadow-[0_0_20px_0_rgba(0,0,0,0.10)] transition-[color,box-shadow] outline-none",
+        "group/input-group dark:bg-background/80 relative flex w-full max-w-[720px] items-center overflow-hidden rounded-md bg-[#FBFAFC] transition-[color,box-shadow] outline-none",
         "h-9 min-w-0 has-[>textarea]:h-auto",
 
         // Variants based on alignment.
diff --git a/frontend/src/components/workspace/input-box.tsx b/frontend/src/components/workspace/input-box.tsx
index 8255cfe6..9309cde7 100644
--- a/frontend/src/components/workspace/input-box.tsx
+++ b/frontend/src/components/workspace/input-box.tsx
@@ -305,7 +305,7 @@ export function InputBox({
         )}
         inputGroupClassName={cn(
           "border-0 rounded-[20px] backdrop-blur-sm",
-          "transition-[height] duration-300 ease-out",
+          "transition-[height] duration-300 ease-out shadow-none ",
           !isNewThread && "h-[200px] shadow-[0_0_20px_0_rgba(0,0,0,0.10)]",
           effectiveIsFocused ? "h-[200px]" : "h-[80px]",
         )}
diff --git a/frontend/src/components/workspace/messages/message-list.tsx b/frontend/src/components/workspace/messages/message-list.tsx
index aa7947f2..c83194e2 100644
--- a/frontend/src/components/workspace/messages/message-list.tsx
+++ b/frontend/src/components/workspace/messages/message-list.tsx
@@ -57,7 +57,7 @@ export function MessageList({
     <Conversation
       className={cn("flex size-full flex-col justify-center", className)}
     >
-      <ConversationContent className="w-full gap-8 px-[20px] pt-12">
+      <ConversationContent className="w-full gap-8 px-[20px]">
         {groupMessages(messages, (group) => {
           if (group.type === "human" || group.type === "assistant") {
             return (
diff --git a/frontend/src/components/workspace/welcome.tsx b/frontend/src/components/workspace/welcome.tsx
index b43da1b6..7fee4956 100644
--- a/frontend/src/components/workspace/welcome.tsx
+++ b/frontend/src/components/workspace/welcome.tsx
@@ -41,7 +41,14 @@ export function Welcome({
           `✨ ${t.welcome.createYourOwnSkill} ✨`
         ) : (
           <div className="flex items-center gap-2">
-            <AuroraText className="text-[18px] text-[#150033]" colors={colors}>
+            <AuroraText
+              className="text-center font-normal text-[18px] leading-normal"
+              style={{
+                color: "var(--color-150033, #150033)",
+                fontFamily: '"Microsoft YaHei"',
+              }}
+              colors={colors}
+            >
               {t.welcome.greeting}
             </AuroraText>
           </div>
diff --git a/frontend/src/core/i18n/locales/zh-CN.ts b/frontend/src/core/i18n/locales/zh-CN.ts
index 32551209..538466d2 100644
--- a/frontend/src/core/i18n/locales/zh-CN.ts
+++ b/frontend/src/core/i18n/locales/zh-CN.ts
@@ -49,7 +49,7 @@ export const zhCN: Translations = {
 
   // Welcome
   welcome: {
-    greeting: "使用Skill",
+    greeting: "使用 Skill",
     description:
       "欢迎使用 🦌 DeerFlow，一个完全开源的超级智能体。通过内置和自定义的 Skills，\nDeerFlow 可以帮你搜索网络、分析数据，还能为你生成幻灯片、\n图片、视频、播客及网页等，几乎可以做任何事情。",
 
diff --git a/frontend/src/core/threads/hooks.ts b/frontend/src/core/threads/hooks.ts
index 1df09deb..d612e199 100644
--- a/frontend/src/core/threads/hooks.ts
+++ b/frontend/src/core/threads/hooks.ts
@@ -18,29 +18,6 @@ import type {
   AgentThreadState,
 } from "./types";
 
-const sleep = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms));
-
-async function waitForThreadStateToBeReadable(
-  apiClient: ReturnType<typeof getAPIClient>,
-  threadId: string,
-  timeoutMs = 3000,
-) {
-  const deadline = Date.now() + timeoutMs;
-
-  while (Date.now() < deadline) {
-    try {
-      const state = await apiClient.threads.getState<AgentThreadState>(threadId);
-      if ((state.values.messages?.length ?? 0) > 0) {
-        return;
-      }
-    } catch {
-      // Ignore transient 404 / not-ready errors while the new thread is being persisted.
-    }
-
-    await sleep(100);
-  }
-}
-
 export function useThreadStream({
   threadId,
   isNewThread,
@@ -212,10 +189,6 @@ export function useSubmitThread({
         },
       );
 
-      if (createNewSession && isNewThread && threadId) {
-        await waitForThreadStateToBeReadable(apiClient, threadId);
-      }
-
       void queryClient.invalidateQueries({ queryKey: ["threads", "search"] });
       afterSubmit?.();
     },