diff --git a/distribution-admin/src/pages/Orders.tsx b/distribution-admin/src/pages/Orders.tsx
index 8cdddd3..04ec35d 100644
--- a/distribution-admin/src/pages/Orders.tsx
+++ b/distribution-admin/src/pages/Orders.tsx
@@ -19,10 +19,12 @@ import {
   listSites,
   fetchReceivedListings,
   updateReceivedListingStatus,
+  getMe,
   type DistributionOrder,
   type ReceivedListing,
   type Site,
 } from '../api'
+import { useMember } from '../MemberContext'
 
 const ORDER_STATUSES = [
   'pending_payment',
diff --git a/distribution-admin/src/pages/Payments.tsx b/distribution-admin/src/pages/Payments.tsx
index e93fd01..beec2a5 100644
--- a/distribution-admin/src/pages/Payments.tsx
+++ b/distribution-admin/src/pages/Payments.tsx
@@ -1,10 +1,12 @@
 import { useEffect, useState } from 'react'
 import { Card, Table, Typography, Space, Select, Tag, InputNumber, Button, message } from 'antd'
-import { bindPaymentChannel, listPaymentChannels, listSites, unbindPaymentChannel, type PaymentChannel, type Site } from '../api'
+import { bindPaymentChannel, listPaymentChannels, listSites, unbindPaymentChannel, getMe, type PaymentChannel, type Site } from '../api'
+import { useMember } from '../MemberContext'
 
 export default function Payments() {
+  const member = useMember()
   const [sites, setSites] = useState<Site[]>([])
-  const [siteID, setSiteID] = useState<number>()
+  const [siteID, setSiteID] = useState<number | undefined>(member?.site_id)
   const [channels, setChannels] = useState<PaymentChannel[]>([])
   const [configID, setConfigID] = useState<number | null>(null)
   const [priority, setPriority] = useState<number>(0)
@@ -22,16 +24,36 @@ export default function Payments() {
   }
 
   useEffect(() => {
-    listSites()
-      .then((items) => {
-        setSites(items)
-        if (items.length > 0) {
-          setSiteID(items[0].id)
-          void load(items[0].id)
+    async function init() {
+      let currentMember = member
+      if (!currentMember) {
+        try {
+          currentMember = await getMe()
+        } catch {
+          // ignore
         }
-      })
-      .catch(() => message.error('站点加载失败'))
-  }, [])
+      }
+      const activeSiteID = currentMember?.site_id
+      if (activeSiteID) {
+        setSiteID(activeSiteID)
+        void load(activeSiteID)
+      }
+
+      if (currentMember?.is_superadmin) {
+        try {
+          const rows = await listSites()
+          setSites(rows)
+          if (!activeSiteID && rows.length > 0) {
+            setSiteID(rows[0].id)
+            void load(rows[0].id)
+          }
+        } catch {
+          // ignore
+        }
+      }
+    }
+    void init()
+  }, [member])
 
   async function handleBind() {
     if (!siteID || !configID) {
@@ -63,16 +85,18 @@ export default function Payments() {
     <Space direction="vertical" className="page">
       <Typography.Title level={3}>支付通道</Typography.Title>
       <Space>
-        <Select
-          placeholder="分销网站"
-          style={{ width: 200 }}
-          value={siteID}
-          options={sites.map((site) => ({ label: site.site_name, value: site.id }))}
-          onChange={(value) => {
-            setSiteID(value)
-            void load(value)
-          }}
-        />
+        {member?.is_superadmin && sites.length > 1 && (
+          <Select
+            placeholder="分销网站"
+            style={{ width: 200 }}
+            value={siteID}
+            options={sites.map((site) => ({ label: site.site_name, value: site.id }))}
+            onChange={(value) => {
+              setSiteID(value)
+              void load(value)
+            }}
+          />
+        )}
         <InputNumber min={1} placeholder="商户配置 ID" value={configID ?? undefined} onChange={(v) => setConfigID(v ?? null)} />
         <InputNumber min={0} placeholder="优先级" value={priority} onChange={(v) => setPriority(v ?? 0)} />
         <Button type="primary" onClick={handleBind}>绑定</Button>
diff --git a/distribution-admin/src/pages/Rules.tsx b/distribution-admin/src/pages/Rules.tsx
index 920d0fb..f2131cd 100644
--- a/distribution-admin/src/pages/Rules.tsx
+++ b/distribution-admin/src/pages/Rules.tsx
@@ -1,6 +1,7 @@
 import { useEffect, useState } from 'react'
 import { Card, Table, Typography, Space, Select, Tag, message } from 'antd'
-import { listRules, listSites, updateRuleStatus, type Rule, type Site } from '../api'
+import { listRules, listSites, updateRuleStatus, getMe, type Rule, type Site } from '../api'
+import { useMember } from '../MemberContext'
 
 const MODE_LABELS: Record<string, string> = {
   two_party_distributor_receive: '两方-分销收号',
@@ -9,8 +10,9 @@ const MODE_LABELS: Record<string, string> = {
 }
 
 export default function Rules() {
+  const member = useMember()
   const [sites, setSites] = useState<Site[]>([])
-  const [siteID, setSiteID] = useState<number | undefined>(undefined)
+  const [siteID, setSiteID] = useState<number | undefined>(member?.site_id)
   const [rules, setRules] = useState<Rule[]>([])
   const [loading, setLoading] = useState(false)
 
@@ -26,18 +28,35 @@ export default function Rules() {
   }
 
   useEffect(() => {
-    listSites()
-      .then((rows) => {
-        setSites(rows)
-        if (rows.length === 1) {
-          setSiteID(rows[0].id)
-          void load(rows[0].id)
-        } else {
-          void load(undefined)
+    async function init() {
+      let currentMember = member
+      if (!currentMember) {
+        try {
+          currentMember = await getMe()
+        } catch {
+          // ignore
         }
-      })
-      .catch(() => message.error('站点加载失败'))
-  }, [])
+      }
+      const activeSiteID = currentMember?.site_id
+      if (activeSiteID) {
+        setSiteID(activeSiteID)
+        void load(activeSiteID)
+      }
+
+      if (currentMember?.is_superadmin) {
+        try {
+          const rows = await listSites()
+          setSites(rows)
+          if (!activeSiteID) {
+            void load(undefined)
+          }
+        } catch {
+          // ignore
+        }
+      }
+    }
+    void init()
+  }, [member])
 
   async function toggleStatus(rule: Rule) {
     const next = rule.status === 'active' ? 'disabled' : 'active'
@@ -54,17 +73,19 @@ export default function Rules() {
     <Space direction="vertical" className="page">
       <Typography.Title level={3}>比例与税费规则</Typography.Title>
       <Space>
-        <Select
-          allowClear
-          placeholder="分销网站"
-          style={{ width: 200 }}
-          value={siteID}
-          options={sites.map((site) => ({ label: site.site_name, value: site.id }))}
-          onChange={(value) => {
-            setSiteID(value)
-            void load(value)
-          }}
-        />
+        {member?.is_superadmin && sites.length > 1 && (
+          <Select
+            allowClear
+            placeholder="分销网站"
+            style={{ width: 200 }}
+            value={siteID}
+            options={sites.map((site) => ({ label: site.site_name, value: site.id }))}
+            onChange={(value) => {
+              setSiteID(value)
+              void load(value)
+            }}
+          />
+        )}
       </Space>
       <Card>
         <Table
diff --git a/distribution-admin/src/pages/SiteSettings.tsx b/distribution-admin/src/pages/SiteSettings.tsx
index 17bcb87..cc09b54 100644
--- a/distribution-admin/src/pages/SiteSettings.tsx
+++ b/distribution-admin/src/pages/SiteSettings.tsx
@@ -24,13 +24,16 @@ import {
 import {
   listSites,
   updateSiteBranding,
+  getMe,
   type Site,
   type SiteBrandingPayload,
 } from '../api'
+import { useMember } from '../MemberContext'
 
 export default function SiteSettings() {
+  const member = useMember()
   const [sites, setSites] = useState<Site[]>([])
-  const [siteID, setSiteID] = useState<number>()
+  const [siteID, setSiteID] = useState<number | undefined>(member?.site_id)
   const [loading, setLoading] = useState(false)
   const [saving, setSaving] = useState(false)
   const [currentSite, setCurrentSite] = useState<Site | null>(null)
@@ -61,16 +64,36 @@ export default function SiteSettings() {
   }, [form])
 
   useEffect(() => {
-    listSites()
-      .then((rows) => {
-        setSites(rows)
-        if (rows.length > 0) {
-          setSiteID(rows[0].id)
-          void loadSite(rows[0].id)
+    async function init() {
+      let currentMember = member
+      if (!currentMember) {
+        try {
+          currentMember = await getMe()
+        } catch {
+          // ignore
         }
-      })
-      .catch(() => message.error('站点加载失败'))
-  }, [loadSite])
+      }
+      const activeSiteID = currentMember?.site_id
+      if (activeSiteID) {
+        setSiteID(activeSiteID)
+        void loadSite(activeSiteID)
+      }
+
+      if (currentMember?.is_superadmin) {
+        try {
+          const rows = await listSites()
+          setSites(rows)
+          if (!activeSiteID && rows.length > 0) {
+            setSiteID(rows[0].id)
+            void loadSite(rows[0].id)
+          }
+        } catch {
+          // ignore
+        }
+      }
+    }
+    void init()
+  }, [member, loadSite])
 
   async function handleSave(values: SiteBrandingPayload) {
     if (!siteID) return
@@ -127,16 +150,18 @@ export default function SiteSettings() {
           </Typography.Text>
         </div>
         <Space>
-          <Select
-            placeholder="分销网站"
-            style={{ width: 220 }}
-            value={siteID}
-            options={sites.map((site) => ({ label: `${site.site_name} (${site.site_code})`, value: site.id }))}
-            onChange={(value) => {
-              setSiteID(value)
-              void loadSite(value)
-            }}
-          />
+          {member?.is_superadmin && sites.length > 1 && (
+            <Select
+              placeholder="分销网站"
+              style={{ width: 220 }}
+              value={siteID}
+              options={sites.map((site) => ({ label: `${site.site_name} (${site.site_code})`, value: site.id }))}
+              onChange={(value) => {
+                setSiteID(value)
+                void loadSite(value)
+              }}
+            />
+          )}
           {currentSite?.site_code && (
             <Button
               icon={<EyeOutlined />}