diff --git a/.env.example b/.env.example
index a227b2d..5186d59 100644
--- a/.env.example
+++ b/.env.example
@@ -1,13 +1,8 @@
-VITE_AUTH_API_BASE_URL=http://127.0.0.1:9000/api
-VITE_OVERSEAS_API_BASE_URL=http://127.0.0.1:9300/api
+VITE_API_BASE_URL=http://127.0.0.1:9000/api
 # H5 同源前缀，由 Vite 代理转发；App 构建使用上面的绝对域名直连。
-VITE_H5_AUTH_API_BASE_URL=/api
-VITE_H5_OVERSEAS_API_BASE_URL=/overseas-api
+VITE_H5_API_BASE_URL=/api
 # H5 开发代理上游；正式 App 构建请在本机环境文件中改为可访问的绝对 API 根地址。
 API_PROXY_TARGET=http://127.0.0.1:9000
-OVERSEAS_API_PROXY_TARGET=http://127.0.0.1:9300
-# 上游本身以 /overseas-api 对外代理时设为 true；直连 gateway-overseas 时保持 false。
-OVERSEAS_API_PROXY_PRESERVE_PREFIX=false
 # 海外 PDA 独立更新清单地址；不得与国内 PDA 发布记录混用。
 VITE_PDA_UPDATE_URL=https://updates.example.com/pda/overseas/latest
 # 仅开发服务器自动预填；请在不提交的 .env.local 中填写真实开发账号。
diff --git a/AGENTS.md b/AGENTS.md
index 328dc2e..7b7fffe 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -3,8 +3,8 @@
 ## 快速读取顺序
 
 1. 先用“页面与能力快速索引”定位 `src/pages.json`、工作台或最小页面；页面业务配置从 `src/data/overseas-workbench.js` 进入，不扫描 `src/uni_modules/`。
-2. 登录、Token 或双区域请求先读 `src/api/auth.js`、`src/stores/session.js`、`src/config/runtime.js` 和 `../../docs/跨区域认证与服务通信契约.md`。
-3. 沿实际 API 定位：入仓/库存契约读 `../../baiyue-firstleg/lastleg-service/AGENTS.md`；资源契约读 `../../baiyue-firstleg/warehouse-overseas-service/AGENTS.md`；网关路径或鉴权问题才读 `../../baiyue-firstleg/gateway-overseas/AGENTS.md`。跨模块流程或入口不明才读 `../../docs/海外仓业务/README.md`；纯页面改动不自动读取后端指引。
+2. 登录、Token 或统一入口请求先读 `src/api/auth.js`、`src/stores/session.js`、`src/config/runtime.js` 和 `../../docs/统一认证与服务通信契约.md`。
+3. 沿实际 API 定位：入仓/库存契约读 `../../baiyue-firstleg/lastleg-service/AGENTS.md`；资源契约读 `../../baiyue-firstleg/warehouse-overseas-service/AGENTS.md`；网关路径或鉴权问题才读 `../../baiyue-firstleg/gateway/AGENTS.md`。跨模块流程或入口不明才读 `../../docs/海外仓业务/README.md`；纯页面改动不自动读取后端指引。
 
 最小读取集按任务保持在本文件、目标页面/API 和一个直接服务指引；只有跨服务状态或鉴权无法判断时才增加第二个服务指引。累计超过约 250 行时优先读取命中段，不全文加载海外仓 README。
 
@@ -16,9 +16,9 @@
 
 ## 服务与发布边界
 
-- 国内 Auth 是唯一账号和 Token 签发方；海外业务请求统一经 `gateway-overseas`。
-- 登录、刷新和本地会话必须同时校验国内/海外 Token 的平台主体、成员、冻结海外仓一致；`OVERSEAS_WAREHOUSE_PDA_OPERATOR` 与 `lastleg:pda:operate` 只从 Auth 登录/刷新响应的顶层权限快照读取并持久化，不得解析 JWT 权限。权限快照缺失、无效、过期、跨主体或撤权响应必须 fail-closed 清理会话，不得只依赖页面入口隐藏。
-- 并发海外 401 只允许一次国内 refresh；双 Token 完整校验后原子替换，每个原请求或照片上传最多重放一次。刷新失败清理本地会话，业务错误和网络错误保留 code、requestId、traceId 或 network 诊断。
+- Auth 是唯一账号和 Token 签发方；认证和业务请求共用统一 Gateway，App 根地址只读 VITE_API_BASE_URL，H5 使用 VITE_H5_API_BASE_URL。
+- 登录、刷新和本地会话必须校验统一 Token 的平台主体、成员、有效期和冻结海外仓；`OVERSEAS_WAREHOUSE_PDA_OPERATOR` 与 `lastleg:pda:operate` 只从 Auth 登录/刷新响应的顶层权限快照读取并持久化，不得解析 JWT 权限。权限快照缺失、无效、过期、跨主体或撤权响应必须 fail-closed 清理会话，不得只依赖页面入口隐藏。
+- 并发 401 只允许一次 refresh；统一 Token 和权限快照完整校验后原子替换，主体或绑定仓改变时清理会话并重新登录，每个原请求或照片上传最多重放一次。刷新失败清理本地会话，业务错误和网络错误保留 code、requestId、traceId 或 network 诊断。
 - 国内与海外 AppID、Android 包名、签名、版本号、构建产物和在线更新通道必须独立。
 - `src/manifest.json` 中的 AppID 在正式打包前由海外版所属 DCloud 账号创建；不得伪造或复用国内 AppID。
 - 环境地址只通过 `.env.local` 等未提交环境文件配置，不写入源码。
diff --git a/src/api/overseas.js b/src/api/overseas.js
index 3282d7e..363e0bc 100644
--- a/src/api/overseas.js
+++ b/src/api/overseas.js
@@ -45,12 +45,12 @@ function overseasUrl(path) {
 	const nativeRuntime = typeof plus !== 'undefined'
 		|| (typeof location !== 'undefined' && location.protocol === 'file:')
 	if (nativeRuntime && !/^https?:\/\//i.test(base)) {
-		const error = new Error('海外服务地址未配置：App 必须设置绝对 HTTP(S) 地址 VITE_OVERSEAS_API_BASE_URL')
-		error.code = 'PDA_OVERSEAS_API_BASE_REQUIRED'
+		const error = new Error('海外服务地址未配置：App 必须设置绝对 HTTP(S) 地址 VITE_API_BASE_URL')
+		error.code = 'PDA_API_BASE_REQUIRED'
 		throw error
 	}
 	const value = `/${String(path || '').replace(/^\/+/, '')}`
-	const normalized = /\/(?:api|overseas-api)$/.test(base)
+	const normalized = /\/api$/.test(base)
 		? value.replace(/^\/api(?=\/)/, '')
 		: value
 	return `${base}${normalized}`
diff --git a/src/config/runtime.js b/src/config/runtime.js
index 6ab17d4..05aa5e3 100644
--- a/src/config/runtime.js
+++ b/src/config/runtime.js
@@ -1,31 +1,14 @@
 const runtimeEnvironment = import.meta.env || {}
-const configuredAuthApiRoot = runtimeEnvironment.VITE_AUTH_API_BASE_URL || ''
-const configuredOverseasApiRoot = runtimeEnvironment.VITE_OVERSEAS_API_BASE_URL || ''
+const configuredApiRoot = runtimeEnvironment.VITE_API_BASE_URL || ''
 const development = Boolean(runtimeEnvironment.DEV)
-
-let selectedAuthApiRoot = configuredAuthApiRoot || '/api'
-let selectedOverseasApiRoot = configuredOverseasApiRoot || '/overseas-api'
+let selectedApiRoot = configuredApiRoot || '/api'
+// #ifdef H5
+selectedApiRoot = runtimeEnvironment.VITE_H5_API_BASE_URL || '/api'
+// #endif
 const nativeRuntime = typeof plus !== 'undefined'
   || (typeof location !== 'undefined' && location.protocol === 'file:')
-
-// H5 must stay same-origin and use Vite's CORS-safe proxy; App builds keep the absolute API roots above.
-// #ifdef H5
-selectedAuthApiRoot = runtimeEnvironment.VITE_H5_AUTH_API_BASE_URL || '/api'
-selectedOverseasApiRoot = runtimeEnvironment.VITE_H5_OVERSEAS_API_BASE_URL || '/overseas-api'
-// #endif
-
-// HBuilderX/App 基座 can expose a file:// location; never allow a relative API
-// root there, even if a stale H5 bundle or compiler flag was reused.
-if (nativeRuntime) {
-	selectedAuthApiRoot = configuredAuthApiRoot || selectedAuthApiRoot
-	// Native file:// builds cannot use the H5-only /overseas-api Vite proxy.
-	// Keep the missing value explicit so the request layer can report a useful
-	// configuration error instead of surfacing an opaque uploadFile:fail.
-	selectedOverseasApiRoot = configuredOverseasApiRoot || ''
-}
-
-export const API_ROOT = String(selectedAuthApiRoot).replace(/\/$/, '')
-export const OVERSEAS_API_ROOT = String(selectedOverseasApiRoot).replace(/\/$/, '')
+if (nativeRuntime) selectedApiRoot = configuredApiRoot || ''
+export const API_ROOT = String(selectedApiRoot).replace(/\/$/, '')
 export const DEV_LOGIN = Object.freeze({
 	username: development ? String(runtimeEnvironment.VITE_PDA_DEV_USERNAME || '') : '',
 	password: development ? String(runtimeEnvironment.VITE_PDA_DEV_PASSWORD || '') : ''
diff --git a/src/stores/session.js b/src/stores/session.js
index b82e2d0..e75cbba 100644
--- a/src/stores/session.js
+++ b/src/stores/session.js
@@ -1,5 +1,5 @@
 import { reactive } from 'vue'
-import { OVERSEAS_API_ROOT } from '../config/runtime.js'
+import { API_ROOT } from '../config/runtime.js'
 import { resetReceivingSession } from './receiving.js'
 import { resetFulfillmentSession } from './fulfillment.js'
 import { resetWarehouseWork } from './warehouse-work.js'
@@ -9,7 +9,7 @@ export const PDA_ROLE = 'OVERSEAS_WAREHOUSE_PDA_OPERATOR'
 export const PDA_AUTHORITY = 'lastleg:pda:operate'
 
 export const session = reactive({
-	currentUser: null, token: '', domesticToken: '', refreshToken: '', tenantId: '', apiBase: OVERSEAS_API_ROOT,
+	currentUser: null, token: '', refreshToken: '', tenantId: '', apiBase: API_ROOT,
 	authorization: { roles: [], authorities: [] }
 })
 
@@ -47,7 +47,7 @@ function includesClaim(values, expected) {
 }
 
 function requireActiveClaims(claims, label) {
-	if (claims.exp && Number(claims.exp) * 1000 <= Date.now()) throw new Error(`${label}已过期`)
+	if (!Number.isFinite(Number(claims.exp)) || Number(claims.exp) * 1000 <= Date.now()) throw new Error(`${label}已过期`)
 	if (claims.app_code !== 'PLATFORM' || claimId(claims, 'tenant_id') !== '0') {
 		throw new Error('当前账号不属于平台仓库作业端')
 	}
@@ -67,25 +67,20 @@ function requireAuthorizationSnapshot(authorization) {
 	return { roles, authorities }
 }
 
-export function validatePdaTokenPair(accessToken, overseasAccessToken, authorization) {
-	const domestic = decodeAccessToken(accessToken)
-	const overseas = decodeAccessToken(overseasAccessToken)
-	requireActiveClaims(domestic, '登录状态')
-	requireActiveClaims(overseas, '海外作业令牌')
-	for (const claim of ['user_id', 'membership_id', 'tenant_id', 'app_code', 'overseas_warehouse_id']) {
-		if (claimId(domestic, claim) !== claimId(overseas, claim)) throw new Error('国内与海外令牌作业主体不一致')
-	}
-	const warehouseId = claimId(overseas, 'overseas_warehouse_id')
+export function validatePdaToken(accessToken, authorization) {
+	const claims = decodeAccessToken(accessToken)
+	requireActiveClaims(claims, '登录状态')
+	const warehouseId = claimId(claims, 'overseas_warehouse_id')
 	if (!/^\d+$/.test(warehouseId) || warehouseId === '0') throw new Error('海外PDA账号未绑定有效作业仓库')
-	return { domestic, overseas, warehouseId, authorization: requireAuthorizationSnapshot(authorization) }
+	return { claims, warehouseId, authorization: requireAuthorizationSnapshot(authorization) }
 }
 
 function userFromClaims(pair, saved = {}) {
 	const savedWarehouseId = String(saved?.warehouseId || '')
 	const sameWarehouse = savedWarehouseId === pair.warehouseId
 	return {
-		id: claimId(pair.domestic, 'user_id'),
-		name: pair.domestic.username || '仓库作业员',
+		id: claimId(pair.claims, 'user_id'),
+		name: pair.claims.username || '仓库作业员',
 		role: PDA_ROLE,
 		roles: [...pair.authorization.roles],
 		warehouse: sameWarehouse && saved.warehouseName ? saved.warehouseName : '',
@@ -102,9 +97,9 @@ function storageAvailable() {
 function persistSession() {
 	if (!storageAvailable()) return
 	uni.setStorageSync(SESSION_KEY, {
+		version: 2,
 		currentUser: session.currentUser,
 		token: session.token,
-		domesticToken: session.domesticToken,
 		refreshToken: session.refreshToken,
 		tenantId: session.tenantId,
 		apiBase: session.apiBase,
@@ -116,10 +111,9 @@ export function signIn(account, warehouse, options = {}) {
 	session.currentUser = { id: String(account.id), name: account.name, role: account.role, roles: account.roles || [], warehouse,
 		warehouseId: account.warehouseId || null, warehouseCode: account.warehouseCode || '', warehouseName: account.warehouseName || '' }
 	session.token = options.token || account.token || ''
-	session.domesticToken = options.domesticToken || account.domesticToken || ''
 	session.refreshToken = options.refreshToken || account.refreshToken || ''
 	session.tenantId = options.tenantId || account.tenantId || ''
-	session.apiBase = options.apiBase || account.apiBase || OVERSEAS_API_ROOT
+	session.apiBase = options.apiBase || account.apiBase || API_ROOT
 	session.authorization = {
 		roles: [...(options.authorization?.roles || [])],
 		authorities: [...(options.authorization?.authorities || [])]
@@ -130,28 +124,26 @@ export function signIn(account, warehouse, options = {}) {
 
 export function signInWithTokens(tokens) {
 	if (!tokens?.accessToken) throw new Error('登录响应缺少 accessToken')
-	if (!tokens?.overseasAccessToken) throw new Error('登录响应缺少 overseasAccessToken')
-	const pair = validatePdaTokenPair(tokens.accessToken, tokens.overseasAccessToken, tokens)
+	const pair = validatePdaToken(tokens.accessToken, tokens)
 	const user = userFromClaims(pair)
 	return signIn(user, user.warehouse, {
-		token: tokens.overseasAccessToken,
-		domesticToken: tokens.accessToken,
+		token: tokens.accessToken,
 		refreshToken: tokens.refreshToken || '',
-		tenantId: claimId(pair.domestic, 'tenant_id'),
+		tenantId: claimId(pair.claims, 'tenant_id'),
 		authorization: pair.authorization
 	})
 }
 
 export function replaceTokens(tokens) {
-	if (!tokens?.accessToken || !tokens?.overseasAccessToken) throw new Error('刷新响应缺少双区域访问令牌')
-	const pair = validatePdaTokenPair(tokens.accessToken, tokens.overseasAccessToken, tokens)
+	if (!tokens?.accessToken) throw new Error('刷新响应缺少访问令牌')
+	const pair = validatePdaToken(tokens.accessToken, tokens)
+	if (session.currentUser && (String(session.currentUser.id) !== claimId(pair.claims, 'user_id') || String(session.currentUser.warehouseId) !== pair.warehouseId)) throw new Error('作业主体或绑定仓库已变更，请重新登录')
 	const user = userFromClaims(pair, session.currentUser)
 	const nextRefreshToken = tokens.refreshToken || session.refreshToken
 	// Validate the complete replacement before mutating reactive or persisted session state.
-	session.domesticToken = tokens.accessToken
-	session.token = tokens.overseasAccessToken
+	session.token = tokens.accessToken
 	session.refreshToken = nextRefreshToken
-	session.tenantId = claimId(pair.domestic, 'tenant_id')
+	session.tenantId = claimId(pair.claims, 'tenant_id')
 	session.currentUser = user
 	session.authorization = pair.authorization
 	persistSession()
@@ -174,15 +166,16 @@ export function applyWarehouseProfile(profile) {
 export function restoreSession() {
 	if (!storageAvailable()) return false
 	const saved = uni.getStorageSync(SESSION_KEY)
-	if (!saved?.token || !saved?.domesticToken || !saved?.refreshToken || !saved?.currentUser) {
+	if (!saved?.token || !saved?.refreshToken || !saved?.currentUser || saved.version !== 2) {
 		signOut()
 		return false
 	}
 	try {
-		const pair = validatePdaTokenPair(saved.domesticToken, saved.token, saved.authorization)
+		const pair = validatePdaToken(saved.token, saved.authorization)
+		if (String(saved.currentUser.id) !== claimId(pair.claims, 'user_id') || String(saved.currentUser.warehouseId) !== pair.warehouseId) throw new Error('缓存作业主体不一致')
 		Object.assign(session, saved, {
-			currentUser: userFromClaims(pair, saved.currentUser), tenantId: claimId(pair.domestic, 'tenant_id'),
-			apiBase: OVERSEAS_API_ROOT, authorization: pair.authorization
+			currentUser: userFromClaims(pair, saved.currentUser), tenantId: claimId(pair.claims, 'tenant_id'),
+			apiBase: API_ROOT, authorization: pair.authorization
 		})
 		return true
 	} catch (_) {
@@ -194,10 +187,9 @@ export function restoreSession() {
 export function signOut() {
 	session.currentUser = null
 	session.token = ''
-	session.domesticToken = ''
 	session.refreshToken = ''
 	session.tenantId = ''
-	session.apiBase = OVERSEAS_API_ROOT
+	session.apiBase = API_ROOT
 	session.authorization = { roles: [], authorities: [] }
 	if (typeof uni !== 'undefined' && typeof uni.removeStorageSync === 'function') uni.removeStorageSync(SESSION_KEY)
 	resetReceivingSession()
diff --git a/tests/fulfillment-workflows.test.mjs b/tests/fulfillment-workflows.test.mjs
index 068f965..0a42e65 100644
--- a/tests/fulfillment-workflows.test.mjs
+++ b/tests/fulfillment-workflows.test.mjs
@@ -55,7 +55,7 @@ test('fulfillment API uses dedicated PDA routes and never sends customer or ware
 
 test('fulfillment API calls the frozen list detail pick complete and depart routes with exact payloads', async () => {
 	const calls = []
-	session.apiBase = '/overseas-api'; session.token = 'overseas-token'
+	session.apiBase = '/api'; session.token = 'overseas-token'
 	globalThis.uni = {
 		request(options) {
 			calls.push({ method: options.method, url: options.url, data: options.data, authorization: options.header.Authorization })
diff --git a/tests/overseas-request.test.mjs b/tests/overseas-request.test.mjs
index 24c2010..683e452 100644
--- a/tests/overseas-request.test.mjs
+++ b/tests/overseas-request.test.mjs
@@ -15,7 +15,6 @@ function tokens(version = 'old') {
 	const base = { user_id: 42, membership_id: 84, tenant_id: 0, app_code: 'PLATFORM', overseas_warehouse_id: 900, exp: future(), version }
 	return {
 		accessToken: jwt({ ...base, username: 'picker-42' }),
-		overseasAccessToken: jwt(base),
 		refreshToken: `refresh-${version}`,
 		roles: [PDA_ROLE], authorities: [PDA_AUTHORITY]
 	}
@@ -43,7 +42,7 @@ test('H5 proxy and App API roots normalize request upload and download paths to
 	globalThis.uni.uploadFile = (options) => { uploads.push(options.url); options.success({ statusCode: 200, data: JSON.stringify({ code: '200', data: { fileId: '1' } }), header: {} }) }
 	globalThis.uni.downloadFile = (options) => { downloads.push(options.url); options.success({ statusCode: 200, tempFilePath: '/tmp/photo.jpg', header: {} }) }
 
-	session.apiBase = '/overseas-api'
+	session.apiBase = '/api'
 	await resolvePallet('PLT-1')
 	await overseasUpload('/api/pda/v1/last-leg/photos/files', '/tmp/photo.jpg')
 	await overseasDownload('/api/pda/v1/last-leg/photos/files/1/download')
@@ -54,15 +53,15 @@ test('H5 proxy and App API roots normalize request upload and download paths to
 	await overseasDownload('/api/pda/v1/last-leg/photos/files/1/download')
 
 	assert.deepEqual(requests, [
-		'/overseas-api/pda/v1/last-leg/pallet-operations/pallets/resolve',
+		'/api/pda/v1/last-leg/pallet-operations/pallets/resolve',
 		'https://overseas.example.com/api/pda/v1/last-leg/pallet-operations/pallets/resolve'
 	])
 	assert.deepEqual(uploads, [
-		'/overseas-api/pda/v1/last-leg/photos/files',
+		'/api/pda/v1/last-leg/photos/files',
 		'https://overseas.example.com/api/pda/v1/last-leg/photos/files'
 	])
 	assert.deepEqual(downloads, [
-		'/overseas-api/pda/v1/last-leg/photos/files/1/download',
+		'/api/pda/v1/last-leg/photos/files/1/download',
 		'https://overseas.example.com/api/pda/v1/last-leg/photos/files/1/download'
 	])
 	for (const url of [...requests, ...uploads, ...downloads]) assert.doesNotMatch(url, /\/api\/api\//)
@@ -76,11 +75,11 @@ test('concurrent old-token 401 responses share one refresh and each replay once
 			refreshCount += 1
 			return setTimeout(() => options.success(ok(next)), 10)
 		}
-		if (options.header.Authorization === `Bearer ${old.overseasAccessToken}`) {
+		if (options.header.Authorization === `Bearer ${old.accessToken}`) {
 			oldCalls += 1
 			return setTimeout(() => options.success(denied()), oldCalls === 1 ? 0 : 30)
 		}
-		assert.equal(options.header.Authorization, `Bearer ${next.overseasAccessToken}`)
+		assert.equal(options.header.Authorization, `Bearer ${next.accessToken}`)
 		newCalls += 1
 		setTimeout(() => options.success(ok({ call: newCalls })), 0)
 	}
@@ -92,8 +91,7 @@ test('concurrent old-token 401 responses share one refresh and each replay once
 	assert.equal(refreshCount, 1)
 	assert.equal(oldCalls, 2)
 	assert.equal(newCalls, 2)
-	assert.equal(session.token, next.overseasAccessToken)
-	assert.equal(session.domesticToken, next.accessToken)
+	assert.equal(session.token, next.accessToken)
 })
 
 test('request retries only once and preserves the final request and trace identifiers', async () => {
@@ -134,7 +132,6 @@ test('refresh rejection clears every local token and returns the auth trace', as
 	})
 	assert.equal(session.currentUser, null)
 	assert.equal(session.token, '')
-	assert.equal(session.domesticToken, '')
 	assert.equal(session.refreshToken, '')
 })
 
@@ -148,7 +145,7 @@ test('photo upload refreshes and replays once while retaining the file payload',
 	}
 	globalThis.uni.uploadFile = (options) => {
 		uploads.push({ filePath: options.filePath, name: options.name, authorization: options.header.Authorization })
-		if (options.header.Authorization === `Bearer ${old.overseasAccessToken}`) {
+		if (options.header.Authorization === `Bearer ${old.accessToken}`) {
 			return options.success({ statusCode: 401, data: JSON.stringify({ code: 'A0401', requestId: 'upload-old', traceId: 'upload-old-trace' }), header: {} })
 		}
 		options.success({ statusCode: 200, data: JSON.stringify({ code: '200', data: { fileId: '99' } }), header: {} })
@@ -178,11 +175,11 @@ test('H5 blob photo uses authenticated multipart fetch instead of uni.uploadFile
 		return new Response(JSON.stringify({ code: '200', data: { fileId: 'h5-1' } }), { status: 200 })
 	}
 	try {
-		session.apiBase = '/overseas-api'
+		session.apiBase = '/api'
 		assert.deepEqual(await overseasUpload('/api/pda/v1/last-leg/photos/files', 'blob:http://localhost/photo'), { fileId: 'h5-1' })
 		assert.equal(uploadFileCalls, 0)
-		assert.equal(uploaded.url, '/overseas-api/pda/v1/last-leg/photos/files')
-		assert.equal(uploaded.options.headers.Authorization, `Bearer ${value.overseasAccessToken}`)
+		assert.equal(uploaded.url, '/api/pda/v1/last-leg/photos/files')
+		assert.equal(uploaded.options.headers.Authorization, `Bearer ${value.accessToken}`)
 		assert.ok(uploaded.options.body instanceof FormData)
 	} finally {
 		globalThis.fetch = originalFetch
@@ -203,14 +200,14 @@ test('H5 File photo is appended directly without rereading a temporary blob URL'
 	let calls = 0
 	globalThis.uni.uploadFile = (options) => {
 		calls += 1
-		assert.equal(options.url, '/overseas-api/pda/photo')
-		assert.equal(options.header.Authorization, `Bearer ${value.overseasAccessToken}`)
+		assert.equal(options.url, '/api/pda/photo')
+		assert.equal(options.header.Authorization, `Bearer ${value.accessToken}`)
 		assert.equal(options.files[0].file, selected)
 		assert.equal(options.files[0].name, 'file')
 		options.success({ statusCode: 200, data: JSON.stringify({ code: '200', data: { fileId: 'direct-file' } }), header: {} })
 	}
 	try {
-		session.apiBase = '/overseas-api'
+		session.apiBase = '/api'
 		assert.deepEqual(await overseasUpload('/pda/photo', selected), { fileId: 'direct-file' })
 		assert.equal(calls, 1)
 	} finally {
@@ -225,13 +222,13 @@ test('native file runtime rejects an H5-relative overseas root before upload wit
 	prepareSession()
 	const originalLocation = globalThis.location
 	globalThis.location = { protocol: 'file:' }
-	session.apiBase = '/overseas-api'
+	session.apiBase = '/api'
 	let uploadCalls = 0
 	globalThis.uni.uploadFile = () => { uploadCalls += 1 }
 	try {
 		await assert.rejects(overseasUpload('/pda/photo', '_doc/photo.jpg'), (error) => {
-			assert.equal(error.code, 'PDA_OVERSEAS_API_BASE_REQUIRED')
-			assert.match(error.message, /VITE_OVERSEAS_API_BASE_URL/)
+			assert.equal(error.code, 'PDA_API_BASE_REQUIRED')
+			assert.match(error.message, /VITE_API_BASE_URL/)
 			assert.match(error.message, /HTTP\(S\)/)
 			return true
 		})
@@ -270,8 +267,8 @@ test('authenticated photo download maps the public api path through the H5 overs
 	}
 	assert.equal(await overseasDownload('/api/pda/v1/last-leg/receiving-containers/current/unload-photos/files/99/download'), '/tmp/restored.jpg')
 	assert.equal(calls.length, 1)
-	assert.equal(calls[0].url, '/overseas-api/pda/v1/last-leg/receiving-containers/current/unload-photos/files/99/download')
-	assert.equal(calls[0].header.Authorization, `Bearer ${value.overseasAccessToken}`)
+	assert.equal(calls[0].url, '/api/pda/v1/last-leg/receiving-containers/current/unload-photos/files/99/download')
+	assert.equal(calls[0].header.Authorization, `Bearer ${value.accessToken}`)
 })
 
 test('native image download accepts a valid temp file when App-Plus omits response headers', async () => {
diff --git a/tests/project-contract.test.mjs b/tests/project-contract.test.mjs
index 74a6c91..4b1d40b 100644
--- a/tests/project-contract.test.mjs
+++ b/tests/project-contract.test.mjs
@@ -14,9 +14,8 @@ test('overseas PDA is an independent Vue 3 app with separate packaging identity'
 	assert.doesNotMatch(pages, /pages\/picking|pages\/tasks/)
 	assert.match(pkg, /"build:app"\s*:\s*"uni build -p app"/)
 	assert.match(vite, /API_PROXY_TARGET/)
-	assert.match(vite, /OVERSEAS_API_PROXY_TARGET/)
-	assert.match(vite, /\/overseas-api/)
-	assert.match(vite, /replace\(\/\^\\\/overseas-api\//)
+	assert.doesNotMatch(vite, /OVERSEAS_API_PROXY_TARGET|gateway-overseas/)
+	assert.match(vite, /\/api/)
 	assert.match(vite, /removeHeader\('origin'\)/)
 	assert.match(vite, /removeHeader\('referer'\)/)
 	assert.match(vite, /__VUE_I18N_FULL_INSTALL__:\s*true/)
@@ -35,7 +34,7 @@ test('overseas workbench contains confirmed warehouse and phase-five outbound do
 	for (const label of ['入仓作业', '拆柜收货', '退货入库', '退货合箱', '出库履约', '排车拣货', '出库作业', '库内作业', '换标作业', '现场查询']) assert.match(data, new RegExp(label))
 	for (const excluded of ['集装箱拣货', '装柜取证', '海外派送', '派送单', '客户回访']) assert.doesNotMatch(data, new RegExp(excluded))
 	assert.match(session, /overseas-pda-auth-session/)
-	assert.match(runtime, /VITE_OVERSEAS_API_BASE_URL/)
+	assert.match(runtime, /VITE_API_BASE_URL/)
 })
 
 test('login has no committed demo credentials and inbound operation implements the locked container flow', async () => {
@@ -49,9 +48,9 @@ test('login has no committed demo credentials and inbound operation implements t
 	assert.match(auth, /authRequest\('\/auth\/login', \{ loginId, password \}\)/)
 	assert.doesNotMatch(auth, /authRequest\('\/auth\/login', \{ username, password \}\)/)
 	assert.match(runtime, /runtimeEnvironment\.DEV|VITE_PDA_DEV_USERNAME|VITE_PDA_DEV_PASSWORD/)
-	assert.match(runtime, /'\/overseas-api'/)
-	assert.match(runtime, /#ifdef H5[\s\S]*?VITE_H5_AUTH_API_BASE_URL/)
-	assert.match(runtime, /#ifdef H5[\s\S]*?VITE_H5_OVERSEAS_API_BASE_URL/)
+	assert.match(runtime, /'\/api'/)
+	assert.match(runtime, /#ifdef H5[\s\S]*?VITE_H5_API_BASE_URL/)
+	assert.match(runtime, /#ifdef H5[\s\S]*?VITE_H5_API_BASE_URL/)
 	assert.match(operation, /startScanBroadcast/)
 	assert.match(operation, /palletWorkflowActive = Boolean\(this\.activeInbound \|\| this\.resolvedPallet\)/)
 	assert.match(operation, /queuedTarget: scan\.target/)
diff --git a/tests/return-packing-api.test.mjs b/tests/return-packing-api.test.mjs
index 0de4e23..412ff9f 100644
--- a/tests/return-packing-api.test.mjs
+++ b/tests/return-packing-api.test.mjs
@@ -13,16 +13,16 @@ test('packing preview keeps customer scope internal and exposes stable order ref
 
 test('return packing API uses exact PDA inventory routes without submitting customer or warehouse scope', async () => {
 	const calls = []
-	session.apiBase = '/overseas-api'; session.token = 'packing-token'
+	session.apiBase = '/api'; session.token = 'packing-token'
 	globalThis.uni = { request(options) { calls.push({ method: options.method, url: options.url, data: options.data, authorization: options.header.Authorization }); let data = {}; if (options.url.includes('/packing/orders')) data = { customerId: '100', orders: [], skus: [] }; else if (options.url.endsWith('/cartons/merge')) data = { cartonMark: 'RC-1', skuCode: 'SKU-1', totalQuantity: 2, label: { cartonMark: 'RC-1', items: [] } }; else data = { cartonMark: 'RC/1', totalQuantity: 2, items: [] }; options.success({ statusCode: 200, data: { code: '200', data }, header: {} }) } }
 	await findPackingOrders('RT/1')
 	const request = { returnNos: ['RT/1'], items: [{ skuCode: 'SKU-1', quantity: 2 }], length: 10, width: 20, height: 30, weight: 4, idempotencyKey: 'merge-key' }
 	await mergeReturnCartons(request)
 	await getReturnCartonLabel('RC/1')
 	assert.deepEqual(calls.map((item) => item.url), [
-		'/overseas-api/pda/v1/last-leg/return-inventory/packing/orders?returnNo=RT%2F1',
-		'/overseas-api/pda/v1/last-leg/return-inventory/cartons/merge',
-		'/overseas-api/pda/v1/last-leg/return-inventory/cartons/RC%2F1/label'
+		'/api/pda/v1/last-leg/return-inventory/packing/orders?returnNo=RT%2F1',
+		'/api/pda/v1/last-leg/return-inventory/cartons/merge',
+		'/api/pda/v1/last-leg/return-inventory/cartons/RC%2F1/label'
 	])
 	assert.deepEqual(calls[1].data, request)
 	assert.ok(calls.every((item) => item.authorization === 'Bearer packing-token'))
@@ -30,13 +30,13 @@ test('return packing API uses exact PDA inventory routes without submitting cust
 })
 
 test('return packing lookup treats not found as an empty preview', async () => {
-	session.apiBase = '/overseas-api'; session.token = 'packing-token'
+	session.apiBase = '/api'; session.token = 'packing-token'
 	globalThis.uni = { request(options) { options.success({ statusCode: 404, data: { code: 'A0404', message: '没有匹配的可合箱库存' }, header: {} }) } }
 	assert.deepEqual(await findPackingOrders('MISSING-RETURN'), { customerKey: '', orders: [], skus: [] })
 })
 
 test('return packing lookup still rejects real service errors', async () => {
-	session.apiBase = '/overseas-api'; session.token = 'packing-token'
+	session.apiBase = '/api'; session.token = 'packing-token'
 	globalThis.uni = { request(options) { options.success({ statusCode: 500, data: { code: 'B0500', message: '服务暂不可用' }, header: {} }) } }
 	await assert.rejects(() => findPackingOrders('RT-1'), (error) => error.code === 'B0500')
 })
diff --git a/tests/return-receipt-api.test.mjs b/tests/return-receipt-api.test.mjs
index 008b52d..432450e 100644
--- a/tests/return-receipt-api.test.mjs
+++ b/tests/return-receipt-api.test.mjs
@@ -24,7 +24,7 @@ test('confirmed receipt normalization preserves generated carton and batch refer
 
 test('return receipt API calls only the dedicated PDA routes and preserves the receipt payload', async () => {
 	const calls = []
-	session.apiBase = '/overseas-api'; session.token = 'return-token'
+	session.apiBase = '/api'; session.token = 'return-token'
 	globalThis.uni = {
 		request(options) {
 			calls.push({ method: options.method, url: options.url, data: options.data, authorization: options.header.Authorization })
@@ -40,9 +40,9 @@ test('return receipt API calls only the dedicated PDA routes and preserves the r
 	const confirm = { returnNo: 'RT-001', trackingNo: 'TRACK-1', startedBy: 'SKU', palletCode: 'PLT-1', items: [{ skuCode: 'SKU-1', receivedQuantity: 2 }], idempotencyKey: 'return-key' }
 	await confirmReturnReceipt(confirm)
 	assert.deepEqual(calls.map((item) => item.url), [
-		'/overseas-api/pda/v1/last-leg/return-receipts/start',
-		'/overseas-api/pda/v1/last-leg/return-receipts/sku-candidates',
-		'/overseas-api/pda/v1/last-leg/return-receipts/confirm'
+		'/api/pda/v1/last-leg/return-receipts/start',
+		'/api/pda/v1/last-leg/return-receipts/sku-candidates',
+		'/api/pda/v1/last-leg/return-receipts/confirm'
 	])
 	assert.deepEqual(calls[0].data, { returnNo: 'RT-001' })
 	assert.deepEqual(calls[1].data, { skuCode: 'SKU-1' })
@@ -52,7 +52,7 @@ test('return receipt API calls only the dedicated PDA routes and preserves the r
 })
 
 test('return receipt lookup treats A0404 and HTTP 404 as empty results', async () => {
-	session.apiBase = '/overseas-api'; session.token = 'return-token'
+	session.apiBase = '/api'; session.token = 'return-token'
 	let requestCount = 0
 	globalThis.uni = {
 		request(options) {
@@ -66,7 +66,7 @@ test('return receipt lookup treats A0404 and HTTP 404 as empty results', async (
 })
 
 test('return receipt lookup still rejects real service errors', async () => {
-	session.apiBase = '/overseas-api'; session.token = 'return-token'
+	session.apiBase = '/api'; session.token = 'return-token'
 	globalThis.uni = {
 		request(options) {
 			options.success({ statusCode: 500, data: { code: 'B0500', message: '服务暂不可用' }, header: {} })
diff --git a/tests/session-auth.test.mjs b/tests/session-auth.test.mjs
index 07431c6..5013829 100644
--- a/tests/session-auth.test.mjs
+++ b/tests/session-auth.test.mjs
@@ -3,7 +3,7 @@ import assert from 'node:assert/strict'
 
 import {
 	PDA_AUTHORITY, PDA_ROLE, applyWarehouseProfile, replaceTokens, restoreSession, session,
-	decodeAccessToken, signInWithTokens, signOut, validatePdaTokenPair
+	decodeAccessToken, signInWithTokens, signOut, validatePdaToken
 } from '../src/stores/session.js'
 import { receiving } from '../src/stores/receiving.js'
 import { fulfillment, restoreFulfillmentDraft, updateFulfillmentDraft } from '../src/stores/fulfillment.js'
@@ -24,9 +24,9 @@ function tokenPair(overrides = {}) {
 		overseas_warehouse_id: 900, exp: future()
 	}
 	const domestic = { ...base, username: 'picker-42', ...(overrides.domestic || {}) }
-	const overseas = { ...base, ...(overrides.overseas || {}) }
+
 	return {
-		accessToken: jwt(domestic), overseasAccessToken: jwt(overseas),
+		accessToken: jwt(domestic),
 		refreshToken: overrides.refreshToken ?? 'refresh-42',
 		roles: Object.hasOwn(overrides, 'roles') ? overrides.roles : [PDA_ROLE],
 		authorities: Object.hasOwn(overrides, 'authorities') ? overrides.authorities : [PDA_AUTHORITY]
@@ -46,17 +46,17 @@ function storage() {
 test('valid platform warehouse picker tokens freeze the same operator and warehouse', () => {
 	storage(); signOut()
 	const tokens = tokenPair()
-	const pair = validatePdaTokenPair(tokens.accessToken, tokens.overseasAccessToken, tokens)
+	const pair = validatePdaToken(tokens.accessToken, tokens)
 	assert.equal(pair.warehouseId, '900')
 	const user = signInWithTokens(tokens)
 	assert.deepEqual(user.roles, [PDA_ROLE])
 	assert.equal(user.warehouseId, '900')
 	assert.equal(user.warehouse, '')
 	assert.equal(session.tenantId, '0')
-	assert.equal(session.token, tokens.overseasAccessToken)
+	assert.equal(session.token, tokens.accessToken)
 	assert.deepEqual(session.authorization, { roles: [PDA_ROLE], authorities: [PDA_AUTHORITY] })
-	assert.equal(decodeAccessToken(tokens.overseasAccessToken).roles, undefined)
-	assert.equal(decodeAccessToken(tokens.overseasAccessToken).authorities, undefined)
+	assert.equal(decodeAccessToken(tokens.accessToken).roles, undefined)
+	assert.equal(decodeAccessToken(tokens.accessToken).authorities, undefined)
 })
 
 test('JWT decoding preserves unquoted snowflake subjects and warehouse IDs exactly', () => {
@@ -81,11 +81,11 @@ test('login fails closed for wrong role, authority, warehouse, application, or t
 		tokenPair({ authorities: [] }),
 		tokenPair({ roles: null }),
 		tokenPair({ authorities: null }),
-		tokenPair({ overseas: { overseas_warehouse_id: null } }),
+		tokenPair({ domestic: { overseas_warehouse_id: null } }),
 		tokenPair({ domestic: { app_code: 'MERCHANT', tenant_id: 100 } }),
-		tokenPair({ overseas: { user_id: 99 } }),
-		tokenPair({ overseas: { membership_id: 99 } }),
-		tokenPair({ overseas: { overseas_warehouse_id: 901 } })
+		tokenPair({ domestic: { user_id: null } }),
+		tokenPair({ domestic: { membership_id: null } }),
+		tokenPair({ domestic: { exp: null } })
 	]
 	for (const tokens of invalidPairs) {
 		assert.throws(() => signInWithTokens(tokens))
@@ -93,22 +93,40 @@ test('login fails closed for wrong role, authority, warehouse, application, or t
 	}
 })
 
-test('refresh replacement validates both tokens before atomically changing session', () => {
+test('refresh replacement validates the unified token before atomically changing session', () => {
 	storage(); signOut()
 	const original = tokenPair()
 	signInWithTokens(original)
-	const before = { domestic: session.domesticToken, overseas: session.token, refresh: session.refreshToken }
+	const before = { access: session.token, refresh: session.refreshToken }
 	const invalid = tokenPair({ authorities: [], refreshToken: 'invalid-refresh' })
 	assert.throws(() => replaceTokens(invalid), /lastleg:pda:operate/)
-	assert.deepEqual({ domestic: session.domesticToken, overseas: session.token, refresh: session.refreshToken }, before)
+	assert.deepEqual({ access: session.token, refresh: session.refreshToken }, before)
 
 	const replacement = tokenPair({ refreshToken: 'refresh-43' })
 	replaceTokens(replacement)
-	assert.equal(session.domesticToken, replacement.accessToken)
-	assert.equal(session.token, replacement.overseasAccessToken)
+	assert.equal(session.token, replacement.accessToken)
 	assert.equal(session.refreshToken, 'refresh-43')
 })
 
+test('refresh cannot carry an old operation into another user or warehouse', () => {
+	storage(); signOut(); signInWithTokens(tokenPair())
+	const original = session.token
+	for (const domestic of [{ user_id: 99 }, { overseas_warehouse_id: 901 }]) {
+		assert.throws(() => replaceTokens(tokenPair({ domestic })), /主体或绑定仓库已变更/)
+		assert.equal(session.token, original)
+		assert.equal(session.currentUser.warehouseId, '900')
+	}
+})
+
+test('legacy dual-token storage requires a fresh login', () => {
+	const values = storage(); signOut(); signInWithTokens(tokenPair())
+	const saved = structuredClone([...values.values()][0])
+	delete saved.version
+	signOut(); values.set('overseas-pda-auth-session', saved)
+	assert.equal(restoreSession(), false)
+	assert.equal(session.currentUser, null)
+})
+
 test('restore rebuilds identity from claims and removes expired or tampered storage', () => {
 	const values = storage(); signOut()
 	signInWithTokens(tokenPair())
@@ -123,14 +141,14 @@ test('restore rebuilds identity from claims and removes expired or tampered stor
 	assert.equal(restoreSession(), false)
 	assert.equal(values.has('overseas-pda-auth-session'), false)
 
-	const tampered = { ...saved, token: tokenPair({ overseas: { overseas_warehouse_id: 901 } }).overseasAccessToken }
+	const tampered = { ...saved, token: tokenPair({ domestic: { overseas_warehouse_id: 901 } }).accessToken }
 	signOut(); values.set('overseas-pda-auth-session', tampered)
 	assert.equal(restoreSession(), false)
 	assert.equal(session.currentUser, null)
 	assert.equal(values.has('overseas-pda-auth-session'), false)
 
-	const expired = tokenPair({ domestic: { exp: 1 }, overseas: { exp: 1 } })
-	values.set('overseas-pda-auth-session', { ...saved, domesticToken: expired.accessToken, token: expired.overseasAccessToken })
+	const expired = tokenPair({ domestic: { exp: 1 } })
+	values.set('overseas-pda-auth-session', { ...saved, token: expired.accessToken })
 	assert.equal(restoreSession(), false)
 	assert.equal(values.has('overseas-pda-auth-session'), false)
 })
@@ -152,7 +170,6 @@ test('sign out clears tokens, frozen warehouse identity, and every receiving or
 	signOut()
 	assert.equal(session.currentUser, null)
 	assert.equal(session.token, '')
-	assert.equal(session.domesticToken, '')
 	assert.equal(session.refreshToken, '')
 	assert.deepEqual(session.authorization, { roles: [], authorities: [] })
 	assert.equal(values.has('overseas-pda-auth-session'), false)
diff --git a/tests/warehouse-workflows.test.mjs b/tests/warehouse-workflows.test.mjs
index 79f620a..e02984d 100644
--- a/tests/warehouse-workflows.test.mjs
+++ b/tests/warehouse-workflows.test.mjs
@@ -20,7 +20,7 @@ const read = (path) => readFile(new URL(path, import.meta.url), 'utf8')
 
 function requestMock() {
 	const calls = []
-	session.apiBase = '/overseas-api'; session.token = 'warehouse-token'
+	session.apiBase = '/api'; session.token = 'warehouse-token'
 	globalThis.uni = {
 		request(options) {
 			calls.push({ method: options.method, url: options.url, data: options.data, authorization: options.header.Authorization })
diff --git a/vite.config.js b/vite.config.js
index d6a0949..51f2fe2 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -25,9 +25,7 @@ function loggedProxy(name, options) {
 
 export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd(), '')
-  const domesticTarget = env.API_PROXY_TARGET || 'http://127.0.0.1:9000'
-  const overseasTarget = env.OVERSEAS_API_PROXY_TARGET || 'http://127.0.0.1:9300'
-  const preserveOverseasPrefix = env.OVERSEAS_API_PROXY_PRESERVE_PREFIX === 'true'
+  const apiTarget = env.API_PROXY_TARGET || 'http://127.0.0.1:9000'
   return {
   plugins: [uni()],
   define: {
@@ -38,12 +36,7 @@ export default defineConfig(({ mode }) => {
   },
   server: {
     proxy: {
-      '/api': loggedProxy('auth', { target: domesticTarget, changeOrigin: true }),
-      '/overseas-api': loggedProxy('overseas', {
-        target: overseasTarget,
-        changeOrigin: true,
-        rewrite: (path) => preserveOverseasPrefix ? path : path.replace(/^\/overseas-api/, '/api')
-      })
+      '/api': loggedProxy('api', { target: apiTarget, changeOrigin: true })
     }
   },
   css: {