diff --git a/.env b/.env
index 2902ede..ba2f103 100644
--- a/.env
+++ b/.env
@@ -1,6 +1,6 @@
 # API 基础地址，不设置时默认 https://api.xtrader.vip
 # 连接测试服务器 192.168.3.21:8888 时复制本文件为 .env 或 .env.local 并取消下一行注释：
-# VITE_API_BASE_URL=http://10.117.63.212:8888
+VITE_API_BASE_URL=http://localhost:8888
 
 # SSH 部署（npm run deploy），可选覆盖
 # DEPLOY_HOST=38.246.250.238
diff --git a/sdk/approve.ts b/sdk/approve.ts
index 27c1592..7fce199 100644
--- a/sdk/approve.ts
+++ b/sdk/approve.ts
@@ -158,7 +158,7 @@ function encodeFunctionCall(abiFragment: string, args: any[]): string {
     data += addr.padStart(64, '0');
     
     // 数量参数（补零到32字节）
-    let amount = BigInt(args[1]).toString(16);
+    const amount = BigInt(args[1]).toString(16);
     data += amount.padStart(64, '0');
     
     return data;
diff --git a/src/api/wallet.ts b/src/api/wallet.ts
new file mode 100644
index 0000000..4053b25
--- /dev/null
+++ b/src/api/wallet.ts
@@ -0,0 +1,51 @@
+import { get } from './request'
+
+export interface DepositAddressData {
+  address?: string
+  depositAddress?: string
+  tokenAddress?: string
+  walletAddress?: string
+  [key: string]: unknown
+}
+
+export interface DepositAddressResponse {
+  code: number
+  data?: DepositAddressData
+  msg?: string
+}
+
+export interface GetDepositAddressParams {
+  chain: string
+  tokenSymbol?: string
+}
+
+function pickAddress(d: DepositAddressData | undefined): string | undefined {
+  if (!d) return undefined
+  return (
+    (d.walletAddress as string | undefined) ??
+    (d.externalWalletAddress as string | undefined) ??
+    (d.depositAddress as string | undefined) ??
+    (d.tokenAddress as string | undefined) ??
+    (d.address as string | undefined)
+  )
+}
+
+export async function getDepositAddress(
+  params: GetDepositAddressParams,
+  config?: { headers?: Record<string, string> },
+): Promise<{ ok: boolean; address?: string; raw?: DepositAddressResponse }> {
+  const paths = ['/pmset/getDepositAddress', '/wallet/getDepositAddress', '/pmset/getDepositAddressClient']
+  for (const p of paths) {
+    try {
+      const res = await get<DepositAddressResponse>(p, params as any, config)
+      const codeOk = res.code === 0 || res.code === 200
+      const addr = pickAddress(res.data)
+      if (codeOk && addr && typeof addr === 'string' && addr.length > 0) {
+        return { ok: true, address: addr, raw: res }
+      }
+    } catch {
+    }
+  }
+  return { ok: false }
+}
+
diff --git a/src/components/DepositDialog.vue b/src/components/DepositDialog.vue
index b96c31b..582860d 100644
--- a/src/components/DepositDialog.vue
+++ b/src/components/DepositDialog.vue
@@ -147,6 +147,8 @@
 <script setup lang="ts">
 import { ref, computed, watch } from 'vue'
 import { useI18n } from 'vue-i18n'
+import { getDepositAddress } from '@/api/wallet'
+import { useUserStore } from '@/stores/user'
 
 const { t } = useI18n()
 const props = withDefaults(
@@ -158,7 +160,10 @@ const props = withDefaults(
 )
 const emit = defineEmits<{ 'update:modelValue': [value: boolean] }>()
 
-const DEPOSIT_ADDRESS = '0x742d35Cc6634C0532925a3b844Bc454e4438f44e'
+const userStore = useUserStore()
+const depositAddress = ref('')
+const loading = ref(false)
+const loadError = ref('')
 
 const step = ref<'method' | 'crypto' | 'exchange'>('method')
 const selectedNetwork = ref('ethereum')
@@ -174,12 +179,12 @@ const networks = [
 ]
 
 const depositAddressShort = computed(() => {
-  const a = DEPOSIT_ADDRESS
+  const a = depositAddress.value
   return a ? `${a.slice(0, 6)}...${a.slice(-4)}` : ''
 })
 
 const qrCodeUrl = computed(() => {
-  return `https://api.qrserver.com/v1/create-qr-code/?size=120x120&data=${encodeURIComponent(DEPOSIT_ADDRESS)}`
+  return `https://api.qrserver.com/v1/create-qr-code/?size=120x120&data=${encodeURIComponent(depositAddress.value)}`
 })
 
 function close() {
@@ -189,11 +194,13 @@ function close() {
 function selectMethod(m: 'crypto' | 'exchange') {
   step.value = m
   if (m === 'exchange') exchangeConnected.value = false
+  if (m === 'crypto') fetchAddress()
 }
 
 async function copyAddress() {
   try {
-    await navigator.clipboard.writeText(DEPOSIT_ADDRESS)
+    if (!depositAddress.value) return
+    await navigator.clipboard.writeText(depositAddress.value)
     copied.value = true
     setTimeout(() => {
       copied.value = false
@@ -219,15 +226,57 @@ async function connectMetaMask() {
   }
 }
 
+async function fetchAddress() {
+  loading.value = true
+  loadError.value = ''
+  try {
+    if (!userStore.user) {
+      await userStore.fetchUserInfo?.()
+    }
+    const u = userStore.user as Record<string, unknown> | null
+    const userAddr =
+      (u?.walletAddress as string | undefined) ||
+      (u?.externalWalletAddress as string | undefined)
+    if (userAddr && typeof userAddr === 'string' && userAddr.length > 0) {
+      depositAddress.value = userAddr
+      return
+    }
+    const headers = userStore.getAuthHeaders?.()
+    const resApi = await getDepositAddress(
+      { chain: selectedNetwork.value, tokenSymbol: 'USDC' },
+      headers ? { headers } : undefined,
+    )
+    if (resApi.ok && resApi.address) {
+      depositAddress.value = resApi.address
+      return
+    }
+    depositAddress.value = ''
+    loadError.value = 'failed'
+  } catch {
+    loadError.value = 'failed'
+  } finally {
+    loading.value = false
+  }
+}
+
 watch(
   () => props.modelValue,
   (open) => {
     if (!open) {
       step.value = 'method'
       exchangeConnected.value = false
+      depositAddress.value = ''
+      loadError.value = ''
+      loading.value = false
+    } else {
+      if (step.value === 'crypto') fetchAddress()
     }
   },
 )
+
+watch(selectedNetwork, () => {
+  if (step.value === 'crypto') fetchAddress()
+})
 </script>
 
 <style scoped>