diff --git a/backend/internal/service/delivery.go b/backend/internal/service/delivery.go
index 8c47ff4..5227e51 100644
--- a/backend/internal/service/delivery.go
+++ b/backend/internal/service/delivery.go
@@ -48,7 +48,10 @@ func deliverySubmittedUpstream(order *model.FulfillmentOrder) bool {
 		return true
 	}
 	m := resultDataMap(order.ResultData)
-	if _, ok := m["upstream_order"]; ok {
+	if _, ok := m["delivery"]; ok {
+		return true
+	}
+	if _, ok := m["upstream_order"]; ok { // 兼容历史数据
 		return true
 	}
 	return resultDataString(order.ResultData, "provider_order_stage") == deliveryStageSubmitted
@@ -144,7 +147,7 @@ type DeliverySubmitResult struct {
 	Message         string                 `json:"message"`
 	ProviderOrderNo string                 `json:"provider_order_no,omitempty"`
 	GameAccount     map[string]interface{} `json:"game_account,omitempty"`
-	UpstreamOrder   interface{}            `json:"upstream_order,omitempty"`
+	UpstreamOrder   interface{}            `json:"delivery,omitempty"`
 }
 
 type DeliveryLinkAuth struct {
@@ -348,7 +351,7 @@ func (s *DeliveryService) submit(orderNo, gameAccount, bindUUID string, apiClien
 		"game_uid":             gameAccount,
 		"role_name":            stringFromMap(boundAccount, "game_account_role_name"),
 		"game_channel":         gameChannelText(boundAccount),
-		"upstream_order":       upstreamOrder,
+		"delivery":              upstreamOrder,
 	})
 	nextStatus := model.OrderStatusDelivering
 	message := "已提交发货，等待发货结果回传"
diff --git a/frontend/src/openapi/endpoints.ts b/frontend/src/openapi/endpoints.ts
index bff860f..cae30ff 100644
--- a/frontend/src/openapi/endpoints.ts
+++ b/frontend/src/openapi/endpoints.ts
@@ -67,7 +67,7 @@ const orderResponseExample = `{
     "amount": 105,
     "currency": "POINT",
     "buyer_reference": "buyer-001",
-    "data": { "server": "ios-wechat", "uid": "player-id" },
+    "data": { "game_account": "4808146277", "game_channel": "ios-wechat" },
     "provider_order_no": "",
     "failure_reason": "",
     "created_at": "2026-07-30T10:00:00+08:00",
@@ -133,7 +133,7 @@ const deliverySubmitResponseExample = `{
       "game_account": "4808146277",
       "game_account_role_name": "巫师哈丁12"
     },
-    "upstream_order": {
+    "delivery": {
       "order_no": "provider-1"
     }
   }
@@ -142,6 +142,7 @@ const deliverySubmitResponseExample = `{
 export const endpoints: EndpointSpec[] = [
   {
     key: 'list-products',
+    group: 'basic',
     method: 'GET',
     path: '/api/client/v1/products',
     title: '商品列表',
@@ -187,6 +188,7 @@ export const endpoints: EndpointSpec[] = [
   },
   {
     key: 'create-order',
+    group: 'basic',
     method: 'POST',
     path: '/api/client/v1/orders',
     title: '创建订单',
@@ -225,7 +227,7 @@ export const endpoints: EndpointSpec[] = [
       "amount": 105,
       "currency": "POINT",
       "buyer_reference": "buyer-001",
-      "data": { "server": "ios-wechat", "uid": "player-id" },
+      "data": { "game_account": "4808146277", "game_channel": "ios-wechat" },
       "provider_order_no": "",
       "failure_reason": "",
       "created_at": "2026-07-30T10:00:00+08:00",
@@ -239,6 +241,7 @@ export const endpoints: EndpointSpec[] = [
       { name: 'order', type: 'object', desc: '订单完整对象，字段见下方「订单字段说明」' },
     ],
     notes: [
+      '成功创建返回 HTTP 201；命中幂等（client_order_no 已存在）返回 HTTP 200 且 idempotent=true。',
       'client_order_no 是唯一幂等单号，请保证同一商户下不重复；重复请求不会重复扣款，返回 idempotent=true 及既有订单。',
       '当前无真实支付流程，下单成功即扣款并进入 order_status=paid，余额不足返回 400。',
       '下单成功后请保存 order_no，后续查询/发货/回调均以 order_no 为准；client_order_no 仅用于幂等。',
@@ -247,6 +250,7 @@ export const endpoints: EndpointSpec[] = [
   },
   {
     key: 'query-order',
+    group: 'basic',
     method: 'GET',
     path: '/api/client/v1/orders/{order_no}',
     title: '查询订单',
@@ -258,6 +262,7 @@ export const endpoints: EndpointSpec[] = [
   },
   {
     key: 'cancel-order',
+    group: 'basic',
     method: 'POST',
     path: '/api/client/v1/orders/{order_no}/cancel',
     title: '取消订单',
@@ -275,6 +280,7 @@ export const endpoints: EndpointSpec[] = [
   },
   {
     key: 'delivery-link',
+    group: 'delivery-link',
     method: 'GET',
     path: '/api/client/v1/orders/{order_no}/delivery-link',
     title: '获取发货链接',
@@ -296,6 +302,7 @@ export const endpoints: EndpointSpec[] = [
   },
   {
     key: 'delivery-order',
+    group: 'delivery-self',
     method: 'GET',
     path: '/api/client/v1/orders/{order_no}/delivery',
     title: '查询发货数据',
@@ -328,6 +335,7 @@ export const endpoints: EndpointSpec[] = [
   },
   {
     key: 'delivery-bind',
+    group: 'delivery-self',
     method: 'POST',
     path: '/api/client/v1/orders/{order_no}/delivery/bind',
     title: '发起绑定',
@@ -353,6 +361,7 @@ export const endpoints: EndpointSpec[] = [
   },
   {
     key: 'delivery-submit',
+    group: 'delivery-self',
     method: 'POST',
     path: '/api/client/v1/orders/{order_no}/delivery/submit',
     title: '提交发货',
@@ -374,7 +383,7 @@ export const endpoints: EndpointSpec[] = [
       { name: 'message', type: 'string', desc: '处理结果说明' },
       { name: 'provider_order_no', type: 'string', desc: '平台发货单号' },
       { name: 'game_account', type: 'object', desc: '账号绑定结果' },
-      { name: 'upstream_order', type: 'object', desc: '发货提交结果' },
+      { name: 'delivery', type: 'object', desc: '发货提交结果' },
     ],
     notes: [
       '同一订单重复提交应直接返回已有结果，不应重复发起发货。',
@@ -383,6 +392,7 @@ export const endpoints: EndpointSpec[] = [
   },
   {
     key: 'get-wallet',
+    group: 'basic',
     method: 'GET',
     path: '/api/client/v1/wallet',
     title: '余额查询',
diff --git a/frontend/src/openapi/types.ts b/frontend/src/openapi/types.ts
index 655658a..637e237 100644
--- a/frontend/src/openapi/types.ts
+++ b/frontend/src/openapi/types.ts
@@ -16,6 +16,8 @@ export const endpointSections = [
 export interface EndpointSpec {
   /** 唯一 key，用于折叠面板与锚点 */
   key: string
+  /** 接口分组：basic 基础 / delivery-link 发货链接模式 / delivery-self 自建发货页模式 */
+  group: 'basic' | 'delivery-link' | 'delivery-self'
   /** HTTP 方法 */
   method: HttpMethod
   /** 接口路径，路径参数用 {name} 表示 */
diff --git a/frontend/src/pages/OpenApiDocs.tsx b/frontend/src/pages/OpenApiDocs.tsx
index d3b7735..31c3a90 100644
--- a/frontend/src/pages/OpenApiDocs.tsx
+++ b/frontend/src/pages/OpenApiDocs.tsx
@@ -19,15 +19,18 @@ const baseUrl =
 
 const deliveryModes = [
   {
-    mode: 'Web 发货页',
-    scene: '商户想要“只返回一个链接”，让用户直接打开平台页面填写 UID',
+    mode: '发货链接模式',
+    scene: '实现最简：下单后拿一个签名链接，直接跳转平台发货页，由买家在页面上绑定账号并提交',
     interfaces: '/api/client/v1/orders/{order_no}/delivery-link',
+    steps: '下单 → 获取发货链接 → 链接给买家 → 平台页完成发货',
+    recommend: '商户无自建发货页、想最快上线时使用',
   },
   {
-    mode: '自建发货页',
-    scene: '商户自己有前端页面，想在自己的系统里完成发货流程',
-    interfaces:
-      '/api/client/v1/orders/{order_no}/delivery\n/api/client/v1/orders/{order_no}/delivery/bind\n/api/client/v1/orders/{order_no}/delivery/submit',
+    mode: '自建发货页模式',
+    scene: '商户自己有前端页面，把发货流程嵌在自己的系统里（可预填下单时透传的账号/区服）',
+    interfaces: '/api/client/v1/orders/{order_no}/delivery\n/api/client/v1/orders/{order_no}/delivery/bind\n/api/client/v1/orders/{order_no}/delivery/submit',
+    steps: '下单 → 查询发货数据 → 发起绑定 → 提交发货',
+    recommend: '商户需要自定义发货交互（展示区服、预填账号）时使用',
   },
 ]
 
@@ -48,6 +51,16 @@ interface TocGroup {
 }
 
 function buildToc(): TocGroup[] {
+  const tocItems = (eps: typeof endpoints) =>
+    eps.map((ep) => ({
+      id: `ep-${ep.key}`,
+      label: ep.title,
+      children: endpointSections.map((s) => ({
+        id: `ep-${ep.key}-${s.id}`,
+        label: s.label,
+        level: 3 as const,
+      })),
+    }))
   return [
     {
       title: '开始',
@@ -57,16 +70,16 @@ function buildToc(): TocGroup[] {
       ],
     },
     {
-      title: '接口',
-      items: endpoints.map((ep) => ({
-        id: `ep-${ep.key}`,
-        label: ep.title,
-        children: endpointSections.map((s) => ({
-          id: `ep-${ep.key}-${s.id}`,
-          label: s.label,
-          level: 3 as const,
-        })),
-      })),
+      title: '基础接口',
+      items: tocItems(endpoints.filter((ep) => ep.group === 'basic')),
+    },
+    {
+      title: '发货链接模式',
+      items: tocItems(endpoints.filter((ep) => ep.group === 'delivery-link')),
+    },
+    {
+      title: '自建发货页模式',
+      items: tocItems(endpoints.filter((ep) => ep.group === 'delivery-self')),
     },
     {
       title: '回调',
@@ -321,12 +334,12 @@ function OverviewSection() {
             <li>在「开放 API / API 密钥」创建凭证，获得 <Text code>AppKey</Text> 与 <Text code>AppSecret</Text>。</li>
             <li>每次请求携带 <Text code>X-App-Key / X-Timestamp / X-Nonce / X-Sign</Text> 四个鉴权头。</li>
             <li>调用「商品列表」拿到可售 <Text code>sku</Text>，调用「下单」创建订单并扣款。</li>
-            <li>拿到 <Text code>order_no</Text> 后，可选择返回发货链接，或者用结构化发货接口完成自建页面流程。</li>
+            <li>拿到 <Text code>order_no</Text> 后，按「发货对接方式」二选一：发货链接模式（返回链接即可）或自建发货页模式（结构化接口）。</li>
             <li>在「回调」页配置回调地址并订阅事件，订单状态变化会实时推送，见「回调通知」。</li>
           </ol>
         }
       />
-      <Card className="api-docs__card" size="small" title="发货链路概览">
+      <Card className="api-docs__card" size="small" title="发货对接方式（二选一，先选好再看对应接口）">
         <Table
           className="api-docs__table"
           size="small"
@@ -334,13 +347,20 @@ function OverviewSection() {
           rowKey="mode"
           dataSource={deliveryModes}
           columns={[
-            { title: '模式', dataIndex: 'mode', width: 140 },
+            { title: '方式', dataIndex: 'mode', width: 130 },
             { title: '适用场景', dataIndex: 'scene' },
+            {
+              title: '接口顺序',
+              dataIndex: 'steps',
+              width: 250,
+              render: (v: string) => <pre className="api-docs__pre">{v}</pre>,
+            },
             {
               title: '相关接口',
               dataIndex: 'interfaces',
               render: (v: string) => <pre className="api-docs__pre">{v}</pre>,
             },
+            { title: '建议', dataIndex: 'recommend', width: 170 },
           ]}
         />
       </Card>