diff --git a/ui/src/conversation-panel/components/content/items/question.vue b/ui/src/conversation-panel/components/content/items/question.vue
index 274a6e87cdb..d20c617ba09 100644
--- a/ui/src/conversation-panel/components/content/items/question.vue
+++ b/ui/src/conversation-panel/components/content/items/question.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed } from 'vue'
+import { computed, inject } from 'vue'
 import MkAudio from '@/components/global/mk-media-preview/MkAudio.vue'
 import MkVideo from '@/components/global/mk-media-preview/MkVideo.vue'
 import FileUploadCard from '@/components/mk-drag-upload/FileUploadCard.vue'
@@ -9,8 +9,16 @@ import { formatFileSize } from '@/utils/number'
 import { downloadByURL } from '@/utils/common'
 import { copyText } from '@/utils/clipboard'
 
+import { MESSAGE_LIST_KEY } from '../../message-list/index'
+import { CONVERSATION_LIST_KEY } from '../../../left-sidebar/conversation-list/index'
+
 defineOptions({ name: 'ConversationQuestionContent' })
 
+// 复用对话的分享选择入口，回答生成中禁用。
+const conversationList = inject(CONVERSATION_LIST_KEY, null)
+const messageList = inject(MESSAGE_LIST_KEY, null)
+const canShare = computed(() => Boolean(messageList?.messages.value.length && !messageList.streamLoading.value))
+
 interface QuestionAttachment {
   file_id?: string
   name: string
@@ -93,11 +101,17 @@ function getAttachmentDescription(file: QuestionAttachment) {
     </div>
     <div v-if="content.content" class="mk-gray-card-lg ml-auto w-fit max-w-full py-3! whitespace-pre-wrap wrap-anywhere">{{ content.content }}</div>
     <!-- TODO 用户的操作 -->
-    <div class="h-8 -mt-3 flex items-center justify-end invisible group-hover/question:visible">
+    <div class="h-8 -mt-3 flex items-center justify-end gap-1 invisible group-hover/question:visible">
       <!-- 复制提问 -->
       <el-button text @click="copyText(content.content)">
         <MkIcon name="icon_copy_outlined" />
       </el-button>
+      <!-- 进入分享模式 -->
+      <MkTooltip content="分享">
+        <el-button text :disabled="!canShare" @click="conversationList?.switchShared(true)">
+          <MkIcon name="icon_share_outlined" />
+        </el-button>
+      </MkTooltip>
     </div>
   </div>
 </template>
diff --git a/ui/src/conversation-panel/components/message-footer/index.vue b/ui/src/conversation-panel/components/message-footer/index.vue
index 06cb185ef0f..9668ea9dcb9 100644
--- a/ui/src/conversation-panel/components/message-footer/index.vue
+++ b/ui/src/conversation-panel/components/message-footer/index.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed } from 'vue'
+import { computed, inject } from 'vue'
 // import Feedback from './feedback/index.vue'
 import type { ChatContent } from '@/api/types'
 import { copyText } from '@/utils/clipboard'
@@ -7,8 +7,16 @@ import { datetimeFormat } from '@/utils/time'
 import type { ChatMessage, ChatRecordMeta } from '../../core/types'
 import { useExecutionDetailStore } from '../../right-sidebar/execution-detail/index'
 
+import { MESSAGE_LIST_KEY } from '../message-list/index'
+import { CONVERSATION_LIST_KEY } from '../../left-sidebar/conversation-list/index'
+
 const props = defineProps<{ message: ChatMessage }>()
 
+// 复用对话的分享选择入口，回答生成中禁用。
+const conversationList = inject(CONVERSATION_LIST_KEY, null)
+const messageList = inject(MESSAGE_LIST_KEY, null)
+const canShare = computed(() => Boolean(messageList?.messages.value.length && !messageList.streamLoading.value))
+
 const detail = useExecutionDetailStore()
 
 const EMPTY: ChatRecordMeta = {
@@ -68,8 +76,17 @@ const openExecutionDetail = () => {
           <MkIcon name="icon_copy_outlined" />
         </el-button>
       </MkTooltip>
+      <!-- 进入分享模式 -->
+      <span>
+        <MkTooltip content="分享">
+          <el-button text :disabled="!canShare" @click="conversationList?.switchShared(true)">
+            <MkIcon name="icon_share_outlined" />
+          </el-button>
+        </MkTooltip>
+      </span>
+
       <!-- <Feedback :message="message" /> -->
-      <span v-if="meta.createTime" class="text-N600">{{ datetimeFormat(meta.createTime) }}</span>
+      <span v-if="meta.createTime" class="text-N600 ml-2">{{ datetimeFormat(meta.createTime) }}</span>
     </div>
   </div>
 </template>
diff --git a/ui/src/conversation-panel/left-sidebar/conversation-list/index.ts b/ui/src/conversation-panel/left-sidebar/conversation-list/index.ts
index 82640f81d39..577515b0ff3 100644
--- a/ui/src/conversation-panel/left-sidebar/conversation-list/index.ts
+++ b/ui/src/conversation-panel/left-sidebar/conversation-list/index.ts
@@ -1,5 +1,6 @@
 import { computed, inject, ref, type InjectionKey, type Ref } from 'vue'
 import { v7 as uuidv7 } from 'uuid'
+import type { SidePanelMode } from '../../core/layout/types'
 import type { Conversation, ConversationAccount, ConversationAppInfo } from '../../core/types'
 
 // 由 Chat / Debug 入口注入本组件需要的会话接口。
@@ -27,9 +28,13 @@ export function createConversationListStore(deps: ConversationListDeps) {
   const pageSize = 50
   const currentPage = ref(1)
   const hasMore = ref(true)
+  // 布局模式由 View 创建后绑定，分享入口统一在抽屉模式下收起左栏。
+  let leftSideMode: Readonly<Ref<SidePanelMode>> | undefined
+  const bindLeftSideMode = (mode: Readonly<Ref<SidePanelMode>>) => (leftSideMode = mode)
   const isShared = ref<boolean>(false)
-  const switchShared=(share:boolean)=>{
-    isShared.value=share
+  const switchShared = (share: boolean) => {
+    isShared.value = share
+    if (share && leftSideMode?.value === 'drawer') leftSideOpen.value = false
   }
   const loadConversations = async (page = 1) => {
     try {
@@ -103,6 +108,7 @@ export function createConversationListStore(deps: ConversationListDeps) {
   return {
     isShared,
     switchShared,
+    bindLeftSideMode,
     conversations,
     currentChatId,
     currentConversation,
diff --git a/ui/src/conversation-panel/left-sidebar/conversation-list/index.vue b/ui/src/conversation-panel/left-sidebar/conversation-list/index.vue
index 5484ea6d46e..d0bf15ae579 100644
--- a/ui/src/conversation-panel/left-sidebar/conversation-list/index.vue
+++ b/ui/src/conversation-panel/left-sidebar/conversation-list/index.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref } from 'vue'
+import { computed, ref } from 'vue'
 import { MsgConfirm } from '@/utils/message'
 import RenameConversation from '../../components/rename/index.vue'
 import { relativeTimeFormat } from '@/utils/time'
@@ -7,9 +7,16 @@ import type { Conversation } from '../../core/types'
 import { useConversationListStore } from './index'
 import AccountMenu from '../account-menu/index.vue'
 
+import { useMessageListStore } from '../../components/message-list/index'
+import { useViewType, VIEW_TYPE } from '../../view/index'
+
 defineOptions({ name: 'ConversationList' })
 
-const { appInfo, conversations, currentChatId, selectConversation, newConversation, deleteChat, toggleLeftSide, hasMore, loadMore } =
+const viewType = useViewType()
+const msgs = useMessageListStore()
+const canShare = computed(() => msgs.messages.value.length > 0 && !msgs.streamLoading.value)
+
+const { appInfo, conversations, currentChatId, switchShared, selectConversation, newConversation, deleteChat, toggleLeftSide, hasMore, loadMore } =
   useConversationListStore()
 
 // 历史时间优先使用更新时间，缺少时间的记录不显示占位文案。
@@ -99,10 +106,20 @@ function handleClearConversations() {
                 <el-button text><MkIcon name="icon_more_outlined" /></el-button>
                 <template #dropdown>
                   <MkDropdownMenu>
+                    <!-- 分享当前激活对话 -->
+                    <MkDropdownItem
+                      v-if="viewType === VIEW_TYPE.CHAT && currentChatId === conversation.id"
+                      :disabled="!canShare"
+                      @click="switchShared(true)"
+                    >
+                      <template #icon><MkIcon name="icon_share_outlined" /></template>
+                      <span>分享</span>
+                    </MkDropdownItem>
                     <!-- 重命名 -->
                     <RenameConversation :conversation="conversation" />
+
                     <!-- 删除历史对话 -->
-                    <MkDropdownItem divided @click="handleDeleteConversation(conversation)">
+                    <MkDropdownItem @click="handleDeleteConversation(conversation)">
                       <template #icon><MkIcon name="icon_delete-trash_outlined" /></template>
                       <span>删除</span>
                     </MkDropdownItem>
diff --git a/ui/src/conversation-panel/left-sidebar/portal-conversation-list/HistoryConversationDrawer.vue b/ui/src/conversation-panel/left-sidebar/portal-conversation-list/HistoryConversationDrawer.vue
index e4dd97b49a4..368182f26f8 100644
--- a/ui/src/conversation-panel/left-sidebar/portal-conversation-list/HistoryConversationDrawer.vue
+++ b/ui/src/conversation-panel/left-sidebar/portal-conversation-list/HistoryConversationDrawer.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref } from 'vue'
+import { computed, ref } from 'vue'
 import ConversationApi from '@/api/chat/conversation'
 import type { PortalConversationSummary } from '@/api/types'
 import { relativeTimeFormat } from '@/utils/time'
@@ -7,11 +7,22 @@ import { useConversationListStore } from '../conversation-list/index'
 import { usePortalConversationListStore } from './index'
 import RenameConversation from '../../components/rename/index.vue'
 
+import { useMessageListStore } from '../../components/message-list/index'
+
 defineOptions({ name: 'HistoryConversationDrawer' })
 const props = defineProps<{ applicationId: string }>()
 const visible = defineModel<boolean>({ required: true })
 const portalList = usePortalConversationListStore()
 const conversationList = useConversationListStore()
+const msgs = useMessageListStore()
+const canShare = computed(() => msgs.messages.value.length > 0 && !msgs.streamLoading.value)
+
+// 开启当前对话的分享选择，并关闭历史抽屉。
+const handleShareConversation = () => {
+  if (!canShare.value) return
+  conversationList.switchShared(true)
+  visible.value = false
+}
 const selectedApplicationId = ref(props.applicationId)
 const keyword = ref('')
 const conversations = ref<PortalConversationSummary[]>([])
@@ -89,14 +100,20 @@ const handleDeleteConversation = (conversation: PortalConversationSummary) => {
               <el-button text><MkIcon name="icon_more_outlined" /></el-button>
               <template #dropdown>
                 <MkDropdownMenu>
+                  <!-- 分享当前激活对话 -->
+                  <MkDropdownItem v-if="isActiveConversation(conversation)" :disabled="!canShare" @click="handleShareConversation">
+                    <template #icon><MkIcon name="icon_share_outlined" /></template>
+                    <span>分享</span>
+                  </MkDropdownItem>
                   <!-- 重命名 -->
                   <RenameConversation
                     :conversation="conversation"
                     :application-id="selectedApplicationId"
                     @renamed="conversation.abstract = $event"
                   />
+
                   <!-- 删除历史对话 -->
-                  <MkDropdownItem divided @click="handleDeleteConversation(conversation)">
+                  <MkDropdownItem @click="handleDeleteConversation(conversation)">
                     <template #icon><MkIcon name="icon_delete-trash_outlined" /></template>
                     <span>删除</span>
                   </MkDropdownItem>
diff --git a/ui/src/conversation-panel/view/chat/index.vue b/ui/src/conversation-panel/view/chat/index.vue
index d1814c2547b..6e455a1b48d 100644
--- a/ui/src/conversation-panel/view/chat/index.vue
+++ b/ui/src/conversation-panel/view/chat/index.vue
@@ -41,7 +41,7 @@ provide(SHARE_PANEL_CONTENT_KEY, {
   ...bundle.msgs,
   title: computed(() => bundle.list.currentConversation.value?.abstract || '新建对话'),
 })
-provide(VIEW_KEY,VIEW_TYPE.CHAT)
+provide(VIEW_KEY, VIEW_TYPE.CHAT)
 // HTML 内容 iframe 内 chatUserProfile() 取当前对话用户
 provide(CHAT_USER_PROFILE_KEY, createChatUserProfileGetter())
 
@@ -50,6 +50,7 @@ const BREAKPOINT = 768
 const isMobile = ref(window.innerWidth < BREAKPOINT)
 const onResize = () => (isMobile.value = window.innerWidth < BREAKPOINT)
 const leftMode = computed(() => (isMobile.value ? 'drawer' : 'push'))
+bundle.list.bindLeftSideMode(leftMode)
 const rightMode = computed(() => (isMobile.value ? 'drawer' : 'push'))
 // 左栏为抽屉即手机端
 provide(DEVICE_KEY, createDeviceType(leftMode))
diff --git a/ui/src/conversation-panel/view/portal/index.ts b/ui/src/conversation-panel/view/portal/index.ts
index cf17dcc1fbe..b794ab83a2b 100644
--- a/ui/src/conversation-panel/view/portal/index.ts
+++ b/ui/src/conversation-panel/view/portal/index.ts
@@ -3,10 +3,9 @@ import { useRoute, useRouter } from 'vue-router'
 import ConversationApi from '@/api/chat/conversation'
 import PortalApi from '@/api/chat/portal'
 import { createPortalConversationListStore, type PortalConversationListStore } from '../../left-sidebar/portal-conversation-list/index'
-import { createChatConversation, type ChatConversationRouting } from '../chat/index'
-import type { ConversationBundle } from '../types'
+import { createChatConversation, type ChatConversationBundle, type ChatConversationRouting } from '../chat/index'
 
-export interface PortalConversationBundle extends ConversationBundle {
+export interface PortalConversationBundle extends ChatConversationBundle {
   portalList: PortalConversationListStore
 }
 
diff --git a/ui/src/conversation-panel/view/portal/index.vue b/ui/src/conversation-panel/view/portal/index.vue
index 55c366881a2..888912045a8 100644
--- a/ui/src/conversation-panel/view/portal/index.vue
+++ b/ui/src/conversation-panel/view/portal/index.vue
@@ -14,6 +14,7 @@ import { MESSAGE_LIST_KEY } from '../../components/message-list/index'
 import { MESSAGE_INPUT_KEY } from '../../components/message-input/index'
 import { EXECUTION_DETAIL_KEY } from '../../right-sidebar/execution-detail/index'
 import { PORTAL_CONVERSATION_LIST_KEY } from '../../left-sidebar/portal-conversation-list/index'
+import { SHARE_PANEL_KEY } from '../../main/share-panel/index'
 import { createPortalConversation } from './index'
 import { createChatUserProfileGetter } from '../chat/index'
 import { VIEW_KEY, VIEW_TYPE, DEVICE_KEY, CHAT_USER_PROFILE_KEY, createDeviceType } from '../index.ts'
@@ -40,8 +41,9 @@ provide(CONVERSATION_LIST_KEY, bundle.list)
 provide(MESSAGE_LIST_KEY, bundle.msgs)
 provide(MESSAGE_INPUT_KEY, bundle.input)
 provide(EXECUTION_DETAIL_KEY, bundle.detail)
+provide(SHARE_PANEL_KEY, bundle.share)
 provide(PORTAL_CONVERSATION_LIST_KEY, bundle.portalList)
-provide(VIEW_KEY,VIEW_TYPE.PORTAL)
+provide(VIEW_KEY, VIEW_TYPE.PORTAL)
 // HTML 内容 iframe 内 chatUserProfile() 取当前对话用户
 provide(CHAT_USER_PROFILE_KEY, createChatUserProfileGetter())
 // 响应式:窄屏 drawer,宽屏 push
@@ -49,6 +51,7 @@ const BREAKPOINT = 768
 const isMobile = ref(window.innerWidth < BREAKPOINT)
 const onResize = () => (isMobile.value = window.innerWidth < BREAKPOINT)
 const leftMode = computed(() => (isMobile.value ? 'drawer' : 'push'))
+bundle.list.bindLeftSideMode(leftMode)
 const rightMode = computed(() => (isMobile.value ? 'drawer' : 'push'))
 // 左栏为抽屉即手机端
 provide(DEVICE_KEY, createDeviceType(leftMode))
diff --git a/ui/src/views/VIEW_README.md b/ui/src/views/VIEW_README.md
index 791c54508ee..a9fe49f1905 100644
--- a/ui/src/views/VIEW_README.md
+++ b/ui/src/views/VIEW_README.md
@@ -177,6 +177,7 @@ MCP 配置入口使用独立权限。导出 Skills 权限已定义，知识库
 `WebKnowledgeDrawer`、`LarkKnowledgeDialog`、`WorkflowKnowledgeDialog`。
 `KnowledgeBaseForm` 负责名称、描述及 Embedding 选择，内部按范围查询模型；`mode` 默认为 `create`，
 未选择时默认首个可用模型，刷新不覆盖用户选择；基础设置传入 `mode="setting"`，不自动选择模型，保留详情空值。
+基础设置在详情回填后单独校验向量模型，未配置时立即显示必填提示。
 创建浮层接收完整 Knowledge API，工作流创建使用其 `postKnowledgeWorkflow`。
 导入创建成功后先刷新基础资料权限与列表，再提示设置向量模型并向量化文档；确认后按知识库类型进入当前范围的基础设置页，关闭提示保留在当前页。
 “导出知识库”先弹窗确认是否同时导出源文件，默认不勾选；确认后通过当前范围 API 导出，成功关闭、失败保留选项，关闭后清理选择。文档 Excel、ZIP 仍直接导出。
@@ -501,6 +502,9 @@ View 负责路由、资源与模式、图加载、保存／发布／调试编排
   全部智能体与选择抽屉复用卡片，抽屉每次打开重新查询，搜索状态独立。
   门户历史侧栏仅展示有历史的智能体及最近 5 条会话，剩余数量取分组总数；“查看更多”打开历史对话抽屉，
   支持切换智能体、摘要搜索、滚动分页及打开／删除会话，删除后同步刷新侧栏。
+  单应用历史列表与门户历史抽屉仅在当前激活会话的菜单显示分享入口；无消息或回答生成中不可分享。
+  门户复用 Chat 分享 Store，抽屉点击分享后关闭并进入消息选择模式。
+  Chat／Portal 视图将左栏布局模式绑定到会话列表 Store；开启分享时，抽屉模式自动收起左栏。
 
 ### 对话消息反馈
 
diff --git a/ui/src/views/chat/share/index.vue b/ui/src/views/chat/share/index.vue
index 88ad677b49a..b05033c1029 100644
--- a/ui/src/views/chat/share/index.vue
+++ b/ui/src/views/chat/share/index.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed, onBeforeUnmount, provide, ref, watch } from 'vue'
+import { computed, onMounted, provide, ref, watch } from 'vue'
 import { useRoute } from 'vue-router'
 import ConversationApi from '@/api/chat/conversation'
 import type { ChatShareDetail } from '@/api/types'
@@ -13,7 +13,6 @@ const route = useRoute()
 const shareId = computed(() => String(route.params.shareId || ''))
 const detail = ref<ChatShareDetail | null>(null)
 const loading = ref(false)
-const failed = ref(false)
 
 // 公开接口按时间正序返回全部记录，不请求原会话或加载更多历史。
 const messages = computed<ChatMessage[]>(() =>
@@ -40,24 +39,12 @@ provide(SHARE_PANEL_CONTENT_KEY, {
   loadMore: async () => false,
 })
 
-// 请求序号隔离切换链接及卸载后的响应，防止旧记录覆盖当前页面。
-let requestVersion = 0
 const loadShare = async () => {
-  const version = ++requestVersion
   detail.value = null
   loading.value = true
-  failed.value = false
-  try {
-    const response = await ConversationApi.getShareConversation(shareId.value)
-    if (version === requestVersion) detail.value = response
-  } catch {
-    if (version === requestVersion) failed.value = true
-  } finally {
-    if (version === requestVersion) loading.value = false
-  }
+  await ConversationApi.getShareConversation(shareId.value)
 }
-watch(shareId, loadShare, { immediate: true })
-onBeforeUnmount(() => requestVersion++)
+onMounted(loadShare)
 </script>
 
 <template>
diff --git a/ui/src/views/knowledge-detail/setting/base/index.vue b/ui/src/views/knowledge-detail/setting/base/index.vue
index ab602c0e347..69648dd9766 100644
--- a/ui/src/views/knowledge-detail/setting/base/index.vue
+++ b/ui/src/views/knowledge-detail/setting/base/index.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">
 import { perm } from '@/permission'
 import type { ResourceDetailPageProps } from '@/layout/ResourceDetailLayout.vue'
-import { computed, reactive, ref, useTemplateRef, watch } from 'vue'
+import { computed, nextTick, reactive, ref, useTemplateRef, watch } from 'vue'
 import type { FormInstance, FormRules } from 'element-plus'
 import { cloneDeep } from 'lodash'
 import { KNOWLEDGE_TYPE } from '@/api/enums'
@@ -10,7 +10,7 @@ import { KNOWLEDGE_TYPE_LABELS, KNOWLEDGE_TYPE_MAP } from '@/constants/knowledge
 import { MsgConfirm, MsgSuccess } from '@/utils/message'
 import KnowledgeBaseForm from '@/views/knowledge/create-knowledge/components/KnowledgeBaseForm.vue'
 import { useKnowledgeDetailContext } from '../../context'
-import {isWorkspaceSharedResource, isSystemResource, isSystemSharedResource } from '@/utils/resource-context'
+import { isWorkspaceSharedResource, isSystemResource, isSystemSharedResource } from '@/utils/resource-context'
 /**
  * 知识库「设置」权限判断
  */
@@ -61,7 +61,7 @@ const knowledgeTypeDescriptions = {
 // 等待异步详情与基本信息表单挂载完成后回填，不直接修改详情中的配置。
 watch(
   [knowledge, baseFormRef],
-  ([detail, baseForm]) => {
+  async ([detail, baseForm]) => {
     if (!detail || !baseForm) return
     Object.assign(baseForm.form, {
       name: detail.name,
@@ -80,6 +80,9 @@ watch(
       file_size_limit: detail.file_size_limit ?? 100,
     })
     settingFormRef.value?.clearValidate()
+    // 回填后校验向量模型，进入设置时即提示尚未配置的模型。
+    await nextTick()
+    await baseForm.validateEmbeddingModel()
   },
   { immediate: true, flush: 'post' },
 )
diff --git a/ui/src/views/knowledge/create-knowledge/components/KnowledgeBaseForm.vue b/ui/src/views/knowledge/create-knowledge/components/KnowledgeBaseForm.vue
index 7ae82860255..1ec54497337 100644
--- a/ui/src/views/knowledge/create-knowledge/components/KnowledgeBaseForm.vue
+++ b/ui/src/views/knowledge/create-knowledge/components/KnowledgeBaseForm.vue
@@ -30,6 +30,10 @@ function validate() {
   return formRef.value?.validate().catch(() => false) ?? Promise.resolve(false)
 }
 
+function validateEmbeddingModel() {
+  return formRef.value?.validateField('embedding_model_id').catch(() => false) ?? Promise.resolve(false)
+}
+
 function reset() {
   Object.assign(form, {
     name: '',
@@ -65,7 +69,7 @@ function loadModelOptions() {
 }
 
 onMounted(() => loadModelOptions())
-defineExpose({ form, validate, reset })
+defineExpose({ form, validate, validateEmbeddingModel, reset })
 </script>
 
 <template>