diff --git a/offer_backend/apps/accounts/serializers.py b/offer_backend/apps/accounts/serializers.py
index d672208..f6202e9 100644
--- a/offer_backend/apps/accounts/serializers.py
+++ b/offer_backend/apps/accounts/serializers.py
@@ -45,12 +45,17 @@ class UserSerializer(serializers.ModelSerializer):
 
 class AdminUserSerializer(serializers.ModelSerializer):
     """超管用于创建/管理公司管理员账号"""
-    password = serializers.CharField(write_only=True, min_length=6)
+    password = serializers.CharField(write_only=True, min_length=6, required=False)
 
     class Meta:
         model = User
         fields = ['id', 'username', 'email', 'phone', 'role', 'organization', 'password', 'is_active']
 
+    def validate(self, attrs):
+        if not self.instance and not attrs.get('password'):
+            raise serializers.ValidationError({'password': '创建用户时密码为必填项'})
+        return attrs
+
     def create(self, validated_data):
         password = validated_data.pop('password')
         user = User(**validated_data)
@@ -58,6 +63,15 @@ class AdminUserSerializer(serializers.ModelSerializer):
         user.save()
         return user
 
+    def update(self, instance, validated_data):
+        password = validated_data.pop('password', None)
+        for attr, value in validated_data.items():
+            setattr(instance, attr, value)
+        if password:
+            instance.set_password(password)
+        instance.save()
+        return instance
+
 
 class SendCodeSerializer(serializers.Serializer):
     """发送验证码 serializer"""
diff --git a/offer_backend/apps/jobs/serializers.py b/offer_backend/apps/jobs/serializers.py
index 596cad3..a91aedf 100644
--- a/offer_backend/apps/jobs/serializers.py
+++ b/offer_backend/apps/jobs/serializers.py
@@ -18,7 +18,8 @@ class JobDetailSerializer(serializers.ModelSerializer):
     organization_id = serializers.PrimaryKeyRelatedField(
         source='organization',
         queryset=Organization.objects.all(),
-        write_only=True
+        write_only=True,
+        required=False
     )
 
     class Meta:
diff --git a/offer_frontend/src/layouts/AdminLayout.vue b/offer_frontend/src/layouts/AdminLayout.vue
index 807a1bd..9e6b520 100644
--- a/offer_frontend/src/layouts/AdminLayout.vue
+++ b/offer_frontend/src/layouts/AdminLayout.vue
@@ -1,9 +1,9 @@
 <template>
-  <el-container style="height:100vh;overflow:hidden;flex-direction:column;">
-    <el-header style="background:#001529;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #333;flex-shrink:0;">
-      <div style="color:#fff;font-weight:bold;font-size:16px;">管理后台</div>
+  <div class="admin-layout">
+    <header class="admin-header">
+      <div class="header-title">管理后台</div>
       <el-dropdown>
-        <div style="color:#fff;cursor:pointer;display:flex;align-items:center;gap:8px;">
+        <div class="header-user">
           <span>{{ auth.user?.email }}</span>
           <el-icon><ArrowDown /></el-icon>
         </div>
@@ -13,10 +13,9 @@
           </el-dropdown-menu>
         </template>
       </el-dropdown>
-    </el-header>
-    <el-container style="flex:1;overflow:hidden;">
-      <el-aside width="200px" style="background:#001529;overflow-y:auto;height:100%;">
-        <div style="padding:20px;color:#fff;font-weight:bold;font-size:16px;">菜单</div>
+    </header>
+    <div class="admin-body">
+      <aside class="admin-aside">
         <el-menu router :default-active="$route.path" background-color="#001529" text-color="#fff" active-text-color="#409eff">
           <el-menu-item index="/admin/jobs">职位管理</el-menu-item>
           <el-menu-item index="/admin/applications">投递管理</el-menu-item>
@@ -24,11 +23,14 @@
             <el-menu-item index="/admin/organizations">组织架构</el-menu-item>
             <el-menu-item index="/admin/users">用户管理</el-menu-item>
           </template>
+          <el-menu-item index="/home">返回首页</el-menu-item>
         </el-menu>
-      </el-aside>
-      <el-main style="overflow-y:auto;height:100%;"><router-view /></el-main>
-    </el-container>
-  </el-container>
+      </aside>
+      <main class="admin-main">
+        <router-view />
+      </main>
+    </div>
+  </div>
 </template>
 <script setup>
 import { useRouter } from 'vue-router'
@@ -45,3 +47,54 @@ function logout() {
   router.push({ name: 'Login' })
 }
 </script>
+<style scoped>
+.admin-layout {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+}
+.admin-header {
+  height: 56px;
+  flex-shrink: 0;
+  background: #001529;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 20px;
+  border-bottom: 1px solid #333;
+}
+.header-title {
+  color: #fff;
+  font-weight: bold;
+  font-size: 16px;
+}
+.header-user {
+  color: #fff;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+.admin-body {
+  flex: 1;
+  display: flex;
+  overflow: hidden;
+}
+.admin-aside {
+  width: 200px;
+  flex-shrink: 0;
+  background: #001529;
+  overflow-y: auto;
+}
+.admin-main {
+  flex: 1;
+  overflow-y: auto;
+  padding: 20px;
+  background: #f5f6fa;
+}
+</style>
diff --git a/offer_frontend/src/views/SplashView.vue b/offer_frontend/src/views/SplashView.vue
index b7497e9..f815b2b 100644
--- a/offer_frontend/src/views/SplashView.vue
+++ b/offer_frontend/src/views/SplashView.vue
@@ -45,8 +45,8 @@
         <h1 class="hero-slogan">人才创造美好未来</h1>
         <p class="hero-sub">与优秀的人一起，做有价值的事</p>
         <div class="hero-btns">
-          <button class="btn-primary-lg" @click="router.push('/jobs')">
-            浏览职位
+          <button class="btn-primary-lg" @click="router.push('/companies')">
+            一键进入
             <span class="btn-arrow">→</span>
           </button>
           <button class="btn-secondary-lg" @click="router.push('/register')">
diff --git a/offer_frontend/src/views/admin/JobManageView.vue b/offer_frontend/src/views/admin/JobManageView.vue
index a7411e9..21ba59d 100644
--- a/offer_frontend/src/views/admin/JobManageView.vue
+++ b/offer_frontend/src/views/admin/JobManageView.vue
@@ -15,6 +15,11 @@
       <el-table-column prop="organization_name" label="所属公司" />
       <el-table-column prop="location" label="地点" />
       <el-table-column prop="salary" label="薪资" />
+      <el-table-column label="发布时间" width="160">
+        <template #default="{ row }">
+          {{ row.created_at ? new Date(row.created_at).toLocaleDateString('zh-CN', { year: 'numeric', month: '2-digit', day: '2-digit' }) : '-' }}
+        </template>
+      </el-table-column>
       <el-table-column prop="status" label="状态">
         <template #default="{ row }">
           <el-tag :type="row.status === 'published' ? 'success' : row.status === 'draft' ? 'info' : 'danger'">
@@ -148,7 +153,9 @@ async function handleSave() {
   saving.value = true
   try {
     const payload = { ...form }
-    if (!auth.isSuperAdmin) delete payload.organization_id
+    if (!auth.isSuperAdmin) {
+      payload.organization_id = auth.user?.organization ?? undefined
+    }
     if (editingJob.value) await updateJob(editingJob.value.id, payload)
     else await createJob(payload)
     ElMessage.success('保存成功')
diff --git a/offer_frontend/src/views/portal/CompanyListView.vue b/offer_frontend/src/views/portal/CompanyListView.vue
index df9041a..725ae9f 100644
--- a/offer_frontend/src/views/portal/CompanyListView.vue
+++ b/offer_frontend/src/views/portal/CompanyListView.vue
@@ -89,7 +89,7 @@
             v-for="child in group.children"
             :key="child.id"
             class="member-card"
-            @click="$router.push(`/companies/${child.id}`)"
+            @click="$router.push({ path: '/home', query: { org: child.id } })"
           >
             <div class="member-header">
               <div class="member-logo">
@@ -108,7 +108,7 @@
               <span class="member-email" v-if="child.email">
                 <el-icon><Message /></el-icon> {{ child.email }}
               </span>
-              <el-button type="primary" link size="small">查看详情 →</el-button>
+              <el-button type="primary" link size="small">查看职位 →</el-button>
             </div>
           </div>
         </div>
diff --git a/offer_frontend/src/views/portal/HomeView.vue b/offer_frontend/src/views/portal/HomeView.vue
index ea6a229..c152f73 100644
--- a/offer_frontend/src/views/portal/HomeView.vue
+++ b/offer_frontend/src/views/portal/HomeView.vue
@@ -102,13 +102,14 @@
 
 <script setup>
 import { ref, computed, onMounted } from 'vue'
-import { useRouter } from 'vue-router'
+import { useRouter, useRoute } from 'vue-router'
 import { useAuthStore } from '@/stores/auth'
 import { ElMessage } from 'element-plus'
 import { getOrganizations } from '@/api/organizations'
 import { getJobs } from '@/api/jobs'
 
 const router = useRouter()
+const route = useRoute()
 const auth = useAuthStore()
 
 const orgs = ref([])
@@ -155,7 +156,17 @@ onMounted(async () => {
   try {
     const { data } = await getOrganizations()
     orgs.value = data.results
-    if (orgs.value.length > 0) selectOrg(orgs.value[0])
+    const targetOrgId = route.query.org ? Number(route.query.org) : null
+    let targetOrg = null
+    if (targetOrgId) {
+      for (const org of orgs.value) {
+        if (org.id === targetOrgId) { targetOrg = org; break }
+        const child = org.children?.find(c => c.id === targetOrgId)
+        if (child) { targetOrg = child; break }
+      }
+    }
+    if (targetOrg) selectOrg(targetOrg)
+    else if (orgs.value.length > 0) selectOrg(orgs.value[0])
   } catch { orgsError.value = true }
   finally { orgsLoading.value = false }
 })