diff --git a/routes/admin/vercel.py b/routes/admin/vercel.py
index 91b03d3..cb365b5 100644
--- a/routes/admin/vercel.py
+++ b/routes/admin/vercel.py
@@ -2,8 +2,10 @@
 """Admin Vercel 模块 - Vercel 同步和部署"""
 import asyncio
 import base64
+import hashlib
 import json
 import os
+import time as _time
 
 import httpx
 from fastapi import APIRouter, HTTPException, Request, Depends
@@ -23,6 +25,19 @@ VERCEL_PROJECT_ID = os.getenv("VERCEL_PROJECT_ID", "")
 VERCEL_TEAM_ID = os.getenv("VERCEL_TEAM_ID", "")
 
 
+def _compute_config_hash() -> str:
+    """计算可同步配置的指纹哈希（仅包含 keys 和 accounts）"""
+    syncable = {
+        "keys": CONFIG.get("keys", []),
+        "accounts": [
+            {k: v for k, v in acc.items() if k != "token"}
+            for acc in CONFIG.get("accounts", [])
+        ],
+    }
+    raw = json.dumps(syncable, sort_keys=True, ensure_ascii=False, separators=(",", ":"))
+    return hashlib.md5(raw.encode("utf-8")).hexdigest()
+
+
 # ----------------------------------------------------------------------
 # API 测试（通过本地 API）
 # ----------------------------------------------------------------------
@@ -228,6 +243,10 @@ async def sync_to_vercel(request: Request, _: bool = Depends(verify_admin)):
                     
                     if deploy_resp.status_code in [200, 201]:
                         deploy_data = deploy_resp.json()
+                        # 记录同步哈希和时间
+                        CONFIG["_vercel_sync_hash"] = _compute_config_hash()
+                        CONFIG["_vercel_sync_time"] = int(_time.time())
+                        save_config(CONFIG)
                         result = {
                             "success": True,
                             "message": "配置已同步，正在重新部署...",
@@ -240,6 +259,10 @@ async def sync_to_vercel(request: Request, _: bool = Depends(verify_admin)):
                             result["saved_credentials"] = saved_credentials
                         return JSONResponse(content=result)
             
+            # 环境变量已更新，但无法自动触发重新部署
+            CONFIG["_vercel_sync_hash"] = _compute_config_hash()
+            CONFIG["_vercel_sync_time"] = int(_time.time())
+            save_config(CONFIG)
             result = {
                 "success": True,
                 "message": "配置已同步到 Vercel，请手动触发重新部署",
@@ -259,6 +282,25 @@ async def sync_to_vercel(request: Request, _: bool = Depends(verify_admin)):
         raise HTTPException(status_code=500, detail=str(e))
 
 
+# ----------------------------------------------------------------------
+# 同步状态查询
+# ----------------------------------------------------------------------
+@router.get("/vercel/status")
+async def get_vercel_sync_status(_: bool = Depends(verify_admin)):
+    """检查当前配置与上次同步到 Vercel 的配置是否一致"""
+    last_hash = CONFIG.get("_vercel_sync_hash", "")
+    last_time = CONFIG.get("_vercel_sync_time", 0)
+    current_hash = _compute_config_hash()
+
+    synced = bool(last_hash and last_hash == current_hash)
+
+    return JSONResponse(content={
+        "synced": synced,
+        "last_sync_time": last_time if last_time else None,
+        "has_synced_before": bool(last_hash),
+    })
+
+
 # ----------------------------------------------------------------------
 # 导出配置
 # ----------------------------------------------------------------------
diff --git a/static/admin/.gitkeep b/static/admin/.gitkeep
deleted file mode 100644
index 8b13789..0000000
--- a/static/admin/.gitkeep
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/webui/src/components/ApiTester.jsx b/webui/src/components/ApiTester.jsx
index 87fc7d9..017e7f6 100644
--- a/webui/src/components/ApiTester.jsx
+++ b/webui/src/components/ApiTester.jsx
@@ -154,6 +154,10 @@ export default function ApiTester({ config, onMessage, authFetch }) {
     }
 
     const sendTest = async () => {
+        // 清除上次的流式/思考内容，防止残留
+        setStreamingContent('')
+        setStreamingThinking('')
+
         if (selectedAccount) {
             setLoading(true)
             setResponse(null)
@@ -209,12 +213,12 @@ export default function ApiTester({ config, onMessage, authFetch }) {
                         onClick={() => setConfigExpanded(!configExpanded)}
                         className="lg:hidden flex items-center justify-between p-4 w-full bg-muted/20 hover:bg-muted/30 transition-colors"
                     >
-                            <div className="flex items-center gap-2.5 font-medium text-sm text-foreground">
-                                <div className="p-1.5 rounded-md bg-transparent text-foreground">
-                                    <Terminal className="w-4 h-4" />
-                                </div>
-                                <span>{t('apiTester.config')}</span>
+                        <div className="flex items-center gap-2.5 font-medium text-sm text-foreground">
+                            <div className="p-1.5 rounded-md bg-transparent text-foreground">
+                                <Terminal className="w-4 h-4" />
                             </div>
+                            <span>{t('apiTester.config')}</span>
+                        </div>
                         <div className={clsx("transition-transform duration-300 text-muted-foreground", configExpanded ? "rotate-180" : "")}>
                             <ChevronDown className="w-4 h-4" />
                         </div>
@@ -365,9 +369,9 @@ export default function ApiTester({ config, onMessage, authFetch }) {
                 {/* Input Area */}
                 <div className="p-4 lg:p-6 border-t border-border bg-card">
                     <div className="max-w-4xl mx-auto relative group">
-                            <textarea
-                                className="w-full bg-[#09090b] border border-border rounded-xl pl-4 pr-12 py-3 text-sm focus:ring-2 focus:ring-primary/20 focus:border-primary transition-all resize-none custom-scrollbar placeholder:text-muted-foreground/50 text-foreground shadow-inner"
-                                placeholder={t('apiTester.enterMessage')}
+                        <textarea
+                            className="w-full bg-[#09090b] border border-border rounded-xl pl-4 pr-12 py-3 text-sm focus:ring-2 focus:ring-primary/20 focus:border-primary transition-all resize-none custom-scrollbar placeholder:text-muted-foreground/50 text-foreground shadow-inner"
+                            placeholder={t('apiTester.enterMessage')}
                             rows={1}
                             style={{ minHeight: '52px' }}
                             value={message}
diff --git a/webui/src/components/VercelSync.jsx b/webui/src/components/VercelSync.jsx
index 6afad4f..2f8a548 100644
--- a/webui/src/components/VercelSync.jsx
+++ b/webui/src/components/VercelSync.jsx
@@ -1,5 +1,6 @@
-import { useState, useEffect } from 'react'
-import { Cloud, ArrowRight, ExternalLink, Info, CheckCircle2, XCircle } from 'lucide-react'
+import { useState, useEffect, useCallback } from 'react'
+import { Cloud, ArrowRight, ExternalLink, Info, CheckCircle2, XCircle, RefreshCw } from 'lucide-react'
+import clsx from 'clsx'
 import { useI18n } from '../i18n'
 
 export default function VercelSync({ onMessage, authFetch }) {
@@ -10,9 +11,22 @@ export default function VercelSync({ onMessage, authFetch }) {
     const [loading, setLoading] = useState(false)
     const [result, setResult] = useState(null)
     const [preconfig, setPreconfig] = useState(null)
+    const [syncStatus, setSyncStatus] = useState(null)
 
     const apiFetch = authFetch || fetch
 
+    const fetchSyncStatus = useCallback(async () => {
+        try {
+            const res = await apiFetch('/admin/vercel/status')
+            if (res.ok) {
+                const data = await res.json()
+                setSyncStatus(data)
+            }
+        } catch (e) {
+            console.error('Failed to fetch sync status:', e)
+        }
+    }, [apiFetch])
+
     useEffect(() => {
         const loadPreconfig = async () => {
             try {
@@ -28,7 +42,11 @@ export default function VercelSync({ onMessage, authFetch }) {
             }
         }
         loadPreconfig()
-    }, [])
+        fetchSyncStatus()
+        // Poll every 15s to detect config changes
+        const interval = setInterval(fetchSyncStatus, 15000)
+        return () => clearInterval(interval)
+    }, [fetchSyncStatus])
 
     const handleSync = async () => {
         const tokenToUse = preconfig?.has_token && !vercelToken ? '__USE_PRECONFIG__' : vercelToken
@@ -58,6 +76,7 @@ export default function VercelSync({ onMessage, authFetch }) {
             if (res.ok) {
                 setResult({ ...data, success: true })
                 onMessage('success', data.message)
+                fetchSyncStatus()
             } else {
                 setResult({ ...data, success: false })
                 onMessage('error', data.detail || t('vercel.syncFailed'))
@@ -74,13 +93,41 @@ export default function VercelSync({ onMessage, authFetch }) {
             {/* Configuration Form */}
             <div className="bg-card border border-border rounded-xl shadow-sm p-6 space-y-6">
                 <div className="border-b border-border pb-6">
-                    <h2 className="text-xl font-semibold flex items-center gap-2">
-                        <Cloud className="w-6 h-6 text-primary" />
-                        {t('vercel.title')}
-                    </h2>
+                    <div className="flex items-center justify-between">
+                        <h2 className="text-xl font-semibold flex items-center gap-2">
+                            <Cloud className="w-6 h-6 text-primary" />
+                            {t('vercel.title')}
+                        </h2>
+                        {syncStatus && (
+                            <div className={clsx(
+                                "flex items-center gap-1.5 text-xs font-semibold px-2.5 py-1 rounded-full border transition-colors",
+                                syncStatus.synced
+                                    ? "text-emerald-500 bg-emerald-500/10 border-emerald-500/20"
+                                    : syncStatus.has_synced_before
+                                        ? "text-amber-500 bg-amber-500/10 border-amber-500/20"
+                                        : "text-muted-foreground bg-muted/50 border-border"
+                            )}>
+                                <span className={clsx(
+                                    "w-1.5 h-1.5 rounded-full",
+                                    syncStatus.synced ? "bg-emerald-500" : syncStatus.has_synced_before ? "bg-amber-500 animate-pulse" : "bg-muted-foreground"
+                                )} />
+                                {syncStatus.synced
+                                    ? t('vercel.statusSynced')
+                                    : syncStatus.has_synced_before
+                                        ? t('vercel.statusNotSynced')
+                                        : t('vercel.statusNeverSynced')}
+                            </div>
+                        )}
+                    </div>
                     <p className="text-muted-foreground text-sm mt-1">
                         {t('vercel.description')}
                     </p>
+                    {syncStatus?.last_sync_time && (
+                        <p className="text-xs text-muted-foreground/60 mt-1.5 flex items-center gap-1">
+                            <RefreshCw className="w-3 h-3" />
+                            {t('vercel.lastSyncTime', { time: new Date(syncStatus.last_sync_time * 1000).toLocaleString() })}
+                        </p>
+                    )}
                 </div>
 
                 <div className="space-y-4">
diff --git a/webui/src/locales/en.json b/webui/src/locales/en.json
index 2490dea..1ca00e8 100644
--- a/webui/src/locales/en.json
+++ b/webui/src/locales/en.json
@@ -221,6 +221,10 @@
         "syncSucceeded": "Sync succeeded",
         "syncFailedLabel": "Sync failed",
         "openDeployment": "Open deployment",
+        "statusSynced": "Synced",
+        "statusNotSynced": "Not synced",
+        "statusNeverSynced": "Never synced",
+        "lastSyncTime": "Last sync: {time}",
         "howItWorks": "How it works",
         "steps": {
             "one": "The current configuration (keys and accounts) is exported as JSON.",
@@ -229,4 +233,4 @@
             "four": "Trigger a redeploy to apply the updated environment variables."
         }
     }
-}
+}
\ No newline at end of file
diff --git a/webui/src/locales/zh.json b/webui/src/locales/zh.json
index 7e2c5a2..172a39f 100644
--- a/webui/src/locales/zh.json
+++ b/webui/src/locales/zh.json
@@ -221,6 +221,10 @@
         "syncSucceeded": "同步成功",
         "syncFailedLabel": "同步失败",
         "openDeployment": "访问部署地址",
+        "statusSynced": "已同步",
+        "statusNotSynced": "未同步",
+        "statusNeverSynced": "从未同步",
+        "lastSyncTime": "上次同步: {time}",
         "howItWorks": "工作原理",
         "steps": {
             "one": "当前配置 (密钥和账号) 被导出为 JSON 字符串。",
@@ -229,4 +233,4 @@
             "four": "触发重新部署以应用新的环境变量。"
         }
     }
-}
+}
\ No newline at end of file