diff --git a/src/views/im/home/pages/conversation/components/message/MessageItem.vue b/src/views/im/home/pages/conversation/components/message/MessageItem.vue
new file mode 100644
index 000000000..6320d9af7
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+++ b/src/views/im/home/pages/conversation/components/message/MessageItem.vue
@@ -0,0 +1,556 @@
+<template>
+  <!-- TODO @AI：自己发的消息，是不是头像在最右侧； -->
+  <!-- TODO @AI：消息内容的气泡，是不是指向自己。 -->
+  <!-- TODO @AI：@全部、人的消息高亮；在消息内容里 -->
+  <!-- TODO @AI：文件消息，展示的不如微信的好看。可能要优化下； -->
+  <!-- 时间分隔线（TIP_TIME=20）：居中灰色时间 -->
+  <div
+    v-if="isTipTime"
+    class="flex items-center justify-center px-4 pt-2.5 pb-0.5 text-12px text-[var(--el-text-color-disabled)]"
+  >
+    {{ formatTipTime(message.sendTime) }}
+  </div>
+
+  <!-- 系统提示文案（TIP_TEXT=21） -->
+  <div
+    v-else-if="isTipText"
+    class="flex items-center justify-center px-4 py-2 text-12px text-[var(--el-text-color-secondary)]"
+  >
+    {{ tipText }}
+  </div>
+
+  <!-- 撤回消息：整行展示灰色 tip 文案 -->
+  <div
+    v-else-if="isRecall"
+    class="flex items-center justify-center px-4 py-2 text-12px text-[var(--el-text-color-secondary)]"
+  >
+    {{ recallTip }}
+  </div>
+
+  <!-- 普通消息气泡 -->
+  <div
+    v-else
+    class="flex gap-2 items-start px-4 py-2"
+    :class="{ 'flex-row-reverse': message.selfSend }"
+    @contextmenu.prevent="handleContextMenu"
+  >
+    <!-- 对方消息：头像在左，点头像弹 UserInfoCard -->
+    <UserAvatar
+      v-if="!message.selfSend"
+      :id="message.senderId"
+      :name="message.senderNickName || String(message.senderId)"
+      :url="senderAvatar"
+      :size="36"
+    />
+
+    <div class="flex flex-col gap-0.5 max-w-[70%]" :class="{ 'items-end': message.selfSend }">
+      <!-- 群聊对方消息：气泡上方显示发送者昵称 -->
+      <div
+        v-if="showSenderName"
+        class="mb-0.5 text-12px text-[var(--el-text-color-secondary)] leading-tight"
+      >
+        {{ message.senderNickName || message.senderId }}
+      </div>
+      <div class="flex gap-1.5 items-center" :class="{ 'flex-row-reverse': message.selfSend }">
+        <!-- 消息内容：按 type 走 v-if 分支 -->
+        <!-- 文本消息 -->
+        <div
+          v-if="isText"
+          class="px-3.5 py-2.5 text-sm leading-normal break-words whitespace-pre-wrap rounded-lg"
+          :class="
+            message.selfSend
+              ? 'text-black bg-[#95ec69]'
+              : 'text-[var(--el-text-color-primary)] bg-[var(--el-fill-color-light)]'
+          "
+        >
+          {{ textContent }}
+        </div>
+        <!-- 图片消息：点击大图预览，由 <el-image> 自身承接 -->
+        <el-image
+          v-else-if="isImage && imagePayload"
+          class="max-w-[220px] rounded cursor-zoom-in"
+          :src="imagePayload.thumbnailUrl || imagePayload.url"
+          :preview-src-list="[imagePayload.url]"
+          :preview-teleported="true"
+          fit="contain"
+        />
+        <!-- 文件消息 -->
+        <div
+          v-else-if="isFile && filePayload"
+          class="flex gap-2.5 items-center min-w-[220px] max-w-[320px] px-3.5 py-2.5 border rounded cursor-pointer transition-colors"
+          :class="
+            message.selfSend
+              ? 'bg-[#95ec69] border-[var(--el-border-color-lighter)]'
+              : 'bg-[var(--el-bg-color)] border-[var(--el-border-color-light)] hover:border-[#409eff]'
+          "
+          @click="handleFileClick"
+        >
+          <el-icon class="message-bubble__file-icon flex-shrink-0 !text-[32px]">
+            <Document />
+          </el-icon>
+          <div class="flex-1 min-w-0">
+            <div
+              class="overflow-hidden text-sm font-medium truncate text-[var(--el-text-color-primary)]"
+            >
+              {{ filePayload.name }}
+            </div>
+            <div class="mt-0.5 text-12px text-[var(--el-text-color-secondary)]">
+              {{ formatFileSize(filePayload.size) }}
+            </div>
+          </div>
+        </div>
+        <!-- 语音消息 -->
+        <div
+          v-else-if="isVoice && voicePayload"
+          class="flex gap-2 items-center min-w-[120px] px-3.5 py-2.5 rounded-lg cursor-pointer"
+          :class="message.selfSend ? 'bg-[#95ec69]' : 'bg-[var(--el-fill-color-light)]'"
+          @click="handleVoiceClick"
+        >
+          <el-icon
+            class="message-bubble__voice-icon !text-[18px]"
+            :class="{ 'im-voice-playing': voicePlaying }"
+          >
+            <Microphone />
+          </el-icon>
+          <span class="text-13px text-[var(--el-text-color-primary)]">
+            {{ formatSeconds(voicePayload.duration) }}
+          </span>
+        </div>
+        <!-- 视频消息：直接用原生 <video controls> 内嵌播放，poster 取后端给的封面图；
+             不接入第三方播放器、不重写 UI，保持和图片 / 文件分支一样的轻量观感 -->
+        <video
+          v-else-if="isVideo && videoPayload?.url"
+          class="max-w-[280px] max-h-[320px] rounded bg-black"
+          :src="videoPayload.url"
+          :poster="videoPayload.coverUrl"
+          controls
+          preload="metadata"
+        ></video>
+        <!-- 视频消息但 payload 解析失败 / 没 url：降级展示，避免出现裸的 [视频消息] -->
+        <div
+          v-else-if="isVideo"
+          class="px-3.5 py-2.5 text-sm italic rounded-lg text-[var(--el-text-color-secondary)] bg-[var(--el-fill-color-light)]"
+        >
+          [视频消息]
+        </div>
+        <!-- 未知类型降级展示 -->
+        <div
+          v-else
+          class="px-3.5 py-2.5 text-sm italic rounded-lg text-[var(--el-text-color-secondary)] bg-[var(--el-fill-color-light)]"
+        >
+          [不支持的消息类型]
+        </div>
+
+        <!-- 状态区：自己消息展示发送状态 + 已读/群回执；对方消息 + @自己时展示 @徽标 -->
+        <div class="flex gap-1.5 items-center text-base">
+          <template v-if="message.selfSend">
+            <el-icon v-if="message.status === ImMessageStatus.SENDING" class="is-loading">
+              <Loading />
+            </el-icon>
+            <el-icon
+              v-else-if="message.status === ImMessageStatus.FAILED"
+              color="#f56c6c"
+              class="cursor-pointer"
+              title="发送失败，点击重试"
+              @click="handleResend"
+            >
+              <WarningFilled />
+            </el-icon>
+            <!-- 已读态（私聊） -->
+            <span
+              v-else-if="privateReadLabel"
+              class="text-12px whitespace-nowrap"
+              :class="
+                message.status === ImMessageStatus.READ
+                  ? 'text-[#409eff]'
+                  : 'text-[var(--el-text-color-secondary)]'
+              "
+            >
+              {{ privateReadLabel }}
+            </span>
+            <!-- 群回执：点击弹 popover 展示已读 / 未读成员列表 -->
+            <MessageReadStatus
+              v-else-if="showGroupReadStatus"
+              :message="message"
+              :group-id="conversationStore.activeConversation?.targetId || 0"
+              :group-members="groupMembersForReadStatus"
+              class="text-12px whitespace-nowrap text-[var(--el-text-color-secondary)]"
+            />
+          </template>
+          <!-- 群 @ 我提示 -->
+          <el-tag
+            v-if="!message.selfSend && isAtMe"
+            type="danger"
+            size="small"
+            effect="plain"
+            class="ml-1"
+          >
+            @我
+          </el-tag>
+        </div>
+      </div>
+    </div>
+
+    <!-- 自己消息：头像在右，点头像也能弹 UserInfoCard -->
+    <UserAvatar
+      v-if="message.selfSend"
+      :id="userStore.getUser?.id"
+      :name="userStore.getUser?.nickname"
+      :url="userStore.getUser?.avatar"
+      :size="36"
+    />
+  </div>
+</template>
+
+<script lang="ts" setup>
+import { computed, onBeforeUnmount, ref } from 'vue'
+import { Loading, WarningFilled, Document, Microphone } from '@element-plus/icons-vue'
+import { ElMessageBox } from 'element-plus'
+
+import {
+  ImMessageType,
+  ImMessageStatus,
+  ImGroupReceiptStatus,
+  ImConversationType
+} from '../../../../../utils/constants'
+import { CommonStatusEnum } from '@/utils/constants'
+import {
+  parseMessage,
+  buildRecallTip,
+  type TextMessage,
+  type ImageMessage,
+  type FileMessage,
+  type AudioMessage,
+  type VideoMessage
+} from '../../../../../utils/message'
+import { formatSeconds } from '@/utils/formatTime'
+import { formatFileSize } from '@/utils/file'
+import { useUserStore } from '@/store/modules/user'
+import { useConversationStore } from '../../../../store/conversationStore'
+import { useGroupStore } from '../../../../store/groupStore'
+import { useImUiStore } from '../../../../store/uiStore'
+import { useMessageSender } from '../../../../composables/useMessageSender'
+import type { Message } from '../../../../types'
+import MessageReadStatus from './MessageReadStatus.vue'
+import UserAvatar from '../../../../components/UserAvatar.vue'
+import type { GroupMemberLite } from '../ChatGroupMember.vue'
+
+defineOptions({ name: 'ImMessageItem' })
+
+const props = defineProps<{
+  message: Message
+}>()
+
+const userStore = useUserStore()
+const conversationStore = useConversationStore()
+const groupStore = useGroupStore()
+const uiStore = useImUiStore()
+const { recall, sendRaw } = useMessageSender()
+
+/** 是否已撤回：pull / WS 两路都会调 recallMessage 把原消息更新为 type=RECALL，渲染只需识别 type */
+const isRecall = computed(() => props.message.type === ImMessageType.RECALL)
+
+/** 时间分隔线 / 系统提示文案 */
+const isTipTime = computed(() => props.message.type === ImMessageType.TIP_TIME)
+const isTipText = computed(() => props.message.type === ImMessageType.TIP_TEXT)
+
+/** 是否文本消息 */
+const isText = computed(() => props.message.type === ImMessageType.TEXT)
+const isImage = computed(() => props.message.type === ImMessageType.IMAGE)
+const isFile = computed(() => props.message.type === ImMessageType.FILE)
+const isVoice = computed(() => props.message.type === ImMessageType.VOICE)
+const isVideo = computed(() => props.message.type === ImMessageType.VIDEO)
+
+/** 群聊 + 对方消息 时，在气泡上方显示发送者昵称 */
+const showSenderName = computed(() => {
+  if (props.message.selfSend) {
+    return false
+  }
+  return conversationStore.activeConversation?.type === ImConversationType.GROUP
+})
+
+// 私聊的 conversation.avatar 就是对方头像（openConversation 入参约定）
+const senderAvatar = computed(() => {
+  const conversation = conversationStore.activeConversation
+  if (!conversation || props.message.selfSend) {
+    return ''
+  }
+  if (conversation.type === ImConversationType.GROUP) {
+    const group = groupStore.getGroup(conversation.targetId)
+    return group?.members?.find((m) => m.userId === props.message.senderId)?.avatar || ''
+  }
+  return conversation.avatar || ''
+})
+
+/**
+ * 时间分隔线文案：
+ * - 今天：HH:mm
+ * - 昨天：昨天 HH:mm
+ * - 一周内：周X HH:mm
+ * - 超过一周：MM-dd HH:mm
+ */
+function formatTipTime(timestamp: number): string {
+  if (!timestamp) {
+    return ''
+  }
+  const d = new Date(timestamp)
+  const now = new Date()
+  const pad = (n: number) => n.toString().padStart(2, '0')
+  const hm = `${pad(d.getHours())}:${pad(d.getMinutes())}`
+  const sameDay = (a: Date, b: Date) =>
+    a.getFullYear() === b.getFullYear() &&
+    a.getMonth() === b.getMonth() &&
+    a.getDate() === b.getDate()
+  if (sameDay(d, now)) {
+    return hm
+  }
+  const yesterday = new Date(now)
+  yesterday.setDate(now.getDate() - 1)
+  if (sameDay(d, yesterday)) {
+    return `昨天 ${hm}`
+  }
+  if (now.getTime() - d.getTime() < 7 * 24 * 60 * 60 * 1000) {
+    const weeks = ['周日', '周一', '周二', '周三', '周四', '周五', '周六']
+    return `${weeks[d.getDay()]} ${hm}`
+  }
+  return `${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${hm}`
+}
+
+/** 文本内容 */
+const textContent = computed(() => parseMessage<TextMessage>(props.message.content)?.content ?? '')
+
+/**
+ * TIP_TEXT 文案：后端这里 content 通常是裸字符串（群解散 / 退群 / 踢人 等系统提示），
+ * 老接口可能包成 {"content": "..."}；解析得到 .content 就用，否则当裸文案展示，避免出现空行
+ */
+const tipText = computed(() => {
+  const raw = props.message.content || ''
+  if (!raw) {
+    return ''
+  }
+  const parsed = parseMessage<TextMessage>(raw)
+  if (parsed && typeof parsed.content === 'string') {
+    return parsed.content
+  }
+  return raw
+})
+const imagePayload = computed(() =>
+  isImage.value ? parseMessage<ImageMessage>(props.message.content) : null
+)
+const filePayload = computed(() =>
+  isFile.value ? parseMessage<FileMessage>(props.message.content) : null
+)
+const voicePayload = computed(() =>
+  isVoice.value ? parseMessage<AudioMessage>(props.message.content) : null
+)
+const videoPayload = computed(() =>
+  isVideo.value ? parseMessage<VideoMessage>(props.message.content) : null
+)
+
+/** 文件点击 → 新窗口下载 */
+function handleFileClick() {
+  if (!filePayload.value?.url) {
+    return
+  }
+  window.open(filePayload.value.url, '_blank')
+}
+
+/** 语音点击 → 当前只做简单 Audio() 播放；真实项目可接入全局 Player */
+const voicePlaying = ref(false)
+let currentAudio: HTMLAudioElement | null = null
+function handleVoiceClick() {
+  if (!voicePayload.value?.url) {
+    return
+  }
+  if (voicePlaying.value && currentAudio) {
+    currentAudio.pause()
+    voicePlaying.value = false
+    return
+  }
+  currentAudio = new Audio(voicePayload.value.url)
+  voicePlaying.value = true
+  currentAudio.addEventListener('ended', () => {
+    voicePlaying.value = false
+    currentAudio = null
+  })
+  currentAudio.play().catch(() => {
+    voicePlaying.value = false
+  })
+}
+
+onBeforeUnmount(() => {
+  if (currentAudio) {
+    currentAudio.pause()
+    currentAudio.src = ''
+    currentAudio = null
+  }
+  voicePlaying.value = false
+})
+
+// 撤回文案：统一用 buildRecallTip 生成，避免离线拉取时 content 还保留着原文而被当成提示语展示。
+// recallMessage 写入的 "你撤回了一条消息" 与这里的结果一致，所以实时路径也是相同文案。
+const recallTip = computed(() =>
+  buildRecallTip(props.message.senderNickName, props.message.selfSend)
+)
+
+/** 私聊「已读 / 未读」态（仅对自己发送的私聊消息展示） */
+const privateReadLabel = computed(() => {
+  if (!props.message.selfSend) {
+    return ''
+  }
+  if (conversationStore.activeConversation?.type !== ImConversationType.PRIVATE) {
+    return ''
+  }
+  if (props.message.status === ImMessageStatus.READ) {
+    return '已读'
+  }
+  if (props.message.status === ImMessageStatus.UNREAD) {
+    return '未读'
+  }
+  return ''
+})
+
+/**是否需要显示群回执 popover：自己发的群消息且后端开启了回执（NO_RECEIPT 表示发送时未要求回执，不渲染） */
+const showGroupReadStatus = computed(() => {
+  if (!props.message.selfSend) {
+    return false
+  }
+  if (conversationStore.activeConversation?.type !== ImConversationType.GROUP) {
+    return false
+  }
+  const status = props.message.receiptStatus
+  if (status === undefined || status === null) {
+    return false
+  }
+  return status !== ImGroupReceiptStatus.NO_RECEIPT
+})
+
+// 当前群成员（供 MessageReadStatus 计算未读列表用）
+const groupMembersForReadStatus = computed<GroupMemberLite[]>(() => {
+  const conversation = conversationStore.activeConversation
+  if (!conversation || conversation.type !== ImConversationType.GROUP) {
+    return []
+  }
+  // TODO @AI：group；注释；
+  const g = groupStore.getGroup(conversation.targetId)
+  return (g?.members || []).map((m) => ({
+    userId: m.userId,
+    showNickName: m.displayUserName || m.nickname,
+    showImage: m.avatar,
+    quit: m.status === CommonStatusEnum.DISABLE
+  }))
+})
+
+/** 是否 @我（群消息展示小徽标） */
+const isAtMe = computed(() => {
+  const myId = Number(userStore.getUser?.id) || 0
+  if (!myId) {
+    return false
+  }
+  return (props.message.atUserIds || []).includes(myId)
+})
+
+/**
+ * 右键菜单项：
+ * - 删除：从本地消息列表移除（不动后端）
+ * - 撤回：仅自己发送、已送达（有 id）的消息
+ *
+ * TIP_TIME / TIP_TEXT 态不弹菜单
+ */
+async function handleContextMenu(e: MouseEvent) {
+  if (isTipTime.value || isTipText.value) {
+    return
+  }
+
+  // TODO @AI：右键菜单；注释；
+  const items: Array<{ key: string; name: string; disabled?: boolean }> = [
+    { key: 'DELETE', name: '删除' }
+  ]
+  if (props.message.selfSend && !!props.message.id && !isRecall.value) {
+    items.push({ key: 'RECALL', name: '撤回' })
+  }
+  // TODO @AI：右键菜单；注释；
+  uiStore.openContextMenu({ x: e.clientX, y: e.clientY }, items, async (item) => {
+    if (item.key === 'RECALL') {
+      await handleRecall()
+    } else if (item.key === 'DELETE') {
+      handleDelete()
+    }
+  })
+}
+
+// TODO @AI：注释缺少；
+async function handleRecall() {
+  try {
+    await ElMessageBox.confirm('确定要撤回这条消息吗？', '撤回消息', { type: 'warning' })
+    await recall(props.message)
+  } catch {
+    // 用户取消
+  }
+}
+
+/**
+ * 失败消息点击重试：先把 FAILED 的本地占位消息从列表里去掉，再用同样的 type + content 走一遍 sendRaw，
+ * 后者会新建 clientMessageId 并重新跑乐观更新流程
+ *
+ * 不还原原 needReceipt：群回执是发送时的扩展选项、不会持久化到 message，强行猜测可能与原意不符；
+ * 默认按"无回执"重发，绝大多数场景符合预期，要回执就重新发一次更直观
+ */
+async function handleResend() {
+  if (props.message.status !== ImMessageStatus.FAILED) {
+    return
+  }
+  const conversation = conversationStore.activeConversation
+  if (!conversation) {
+    return
+  }
+  conversationStore.removeMessage(conversation.type, conversation.targetId, {
+    id: props.message.id,
+    clientMessageId: props.message.clientMessageId
+  })
+  await sendRaw(props.message.type, props.message.content, {
+    atUserIds: props.message.atUserIds
+  })
+}
+
+// TODO @AI：注释缺少；
+function handleDelete() {
+  const conversation = conversationStore.activeConversation
+  if (!conversation) {
+    return
+  }
+  conversationStore.removeMessage(conversation.type, conversation.targetId, {
+    id: props.message.id,
+    clientMessageId: props.message.clientMessageId
+  })
+}
+</script>
+
+<style scoped>
+/* el-icon 在暗色模式下全局 color 被 .el-icon{color:var(--color)} 干扰；
+   这里把 file / voice 图标的 fill 锁死，避免字体色跟随主题变白 */
+.message-bubble__file-icon :deep(svg) {
+  fill: #409eff !important;
+}
+.message-bubble__voice-icon :deep(svg) {
+  fill: #606266 !important;
+}
+.message-bubble__voice-icon.im-voice-playing :deep(svg) {
+  fill: #409eff !important;
+}
+
+/* 播放中的脉冲动画：keyframes 用 UnoCSS 不好写，保留 scoped */
+.im-voice-playing {
+  animation: im-voice-icon-pulse 0.8s infinite;
+}
+
+@keyframes im-voice-icon-pulse {
+  0%,
+  100% {
+    transform: scale(1);
+  }
+  50% {
+    transform: scale(1.15);
+  }
+}
+</style>