diff --git a/pages/case/components/archive-detail/follow-up-manage-tab.vue b/pages/case/components/archive-detail/follow-up-manage-tab.vue
index 50ceea6..80f22ae 100644
--- a/pages/case/components/archive-detail/follow-up-manage-tab.vue
+++ b/pages/case/components/archive-detail/follow-up-manage-tab.vue
@@ -91,13 +91,11 @@
               </view>
             </view>
             <button
-              v-if="fromChat && isExecutor(i)"
+              v-if="canShowSendButton(i)"
               class="action-btn send-btn"
-              :class="{ loading: sendingFollowUp }"
-              :disabled="sendingFollowUp"
-              @click.stop="sendFollowUp(i)"
+              @click.stop="goChatAndSend(i)"
             >
-              {{ sendingFollowUp ? "发送中..." : "发送" }}
+              发送
             </button>
           </view>
           <view v-if="i.status === 'treated'" class="result"
@@ -304,7 +302,6 @@ const pages = ref(1);
 const loading = ref(false);
 
 const userNameMap = ref({});
-const sendingFollowUp = ref(false);
 
 const moreStatus = computed(() => {
   if (loading.value) return "loading";
@@ -383,11 +380,43 @@ function resolveUserName(userId) {
 }
 
 function refreshChatRoom() {
-  if (!props.fromChat) return;
-  const pending = uni.getStorageSync(PENDING_FOLLOWUP_SEND_STORAGE_KEY);
-  if (pending && typeof pending === "object") {
-    chatGroupId.value = String(pending.chatGroupId || pending.groupId || "");
+  // 兼容：优先用档案详情数据里已有的 chatGroupId
+  const fromArchive =
+    props?.data && typeof props.data === "object" ? props.data : {};
+  const direct = String(fromArchive?.chatGroupId || fromArchive?.groupId || "");
+  if (direct) {
+    chatGroupId.value = direct;
+    return;
   }
+
+  // 如果没有，走接口探测可用会话
+  refreshChatRoomByApi();
+}
+
+function getConversationIdForChat(groupId) {
+  const gid = normalizeGroupId(groupId || "");
+  return gid ? `GROUP${gid}` : "";
+}
+
+function hasSendContent(todo) {
+  return (
+    Boolean(todo?.sendContent) ||
+    (Array.isArray(todo?.fileList) && todo.fileList.length > 0)
+  );
+}
+
+function isExecutorMe(todo) {
+  const me = String(getUserId() || "");
+  const executor = String(todo?.executorUserId || "");
+  if (!me || !executor) return false;
+  return me === executor;
+}
+
+function canShowSendButton(todo) {
+  if (!hasSendContent(todo)) return false;
+  if (!isExecutorMe(todo)) return false;
+  // 当前患者无会话则不展示
+  return Boolean(currentChatGroupId.value);
 }
 
 function formatTodo(todo) {
@@ -558,90 +587,153 @@ function toDetail(todo) {
   });
 }
 
-async function sendFollowUp(todo) {
-  if (sendingFollowUp.value) {
-    toast("正在发送中，请稍候...");
-    return;
+function buildFollowUpMessages(todo) {
+  const messages = [];
+  if (todo?.sendContent) {
+    messages.push({ type: "text", content: String(todo.sendContent) });
   }
 
-  if (!todo.sendContent && (!todo.fileList || todo.fileList.length === 0)) {
-    toast("没有发送内容");
-    return;
-  }
+  if (Array.isArray(todo?.fileList)) {
+    for (const file of todo.fileList) {
+      const outerType = String(file?.type || "");
 
-  sendingFollowUp.value = true;
-  try {
-    const messages = [];
-
-    // 1. 发送文字内容
-    if (todo.sendContent) {
-      messages.push({
-        type: "text",
-        content: todo.sendContent,
-      });
-    }
-    console.log("==============>fileList", todo.fileList);
-
-    // 2. 处理文件列表（图片、宣教文章、问卷）
-    if (Array.isArray(todo.fileList)) {
-      for (const file of todo.fileList) {
-        if (file.type === "image" && file.URL) {
-          // 发送图片
-          messages.push({
-            type: "image",
-            content: file.URL,
-            name: file.file?.name || file.name || "图片",
-          });
-        } else if (file.file.type === "article" && file.file?.url) {
-          // 发送宣教文章 - 从 URL 中解析 id
-          const articleId = extractIdFromUrl(file.file.url);
-          messages.push({
-            type: "article",
-            content: {
-              _id: articleId,
-              title: file.file?.name || "宣教文章",
-              url: file.file?.url || file.URL,
-              subtitle: file.file?.subtitle || "",
-              cover: file.file?.cover || "",
-              articleId: articleId,
-            },
-          });
-        } else if (
-          file.file.type === "questionnaire" &&
-          (file.file?.url || file.URL)
-        ) {
-          // 发送问卷 - 从 URL 中解析 surveryId
-          const surveryUrl = file.file?.url || file.URL;
-          const surveryId = extractSurveryIdFromUrl(surveryUrl);
-          messages.push({
-            type: "questionnaire",
-            content: {
-              _id: surveryId,
-              name: file.file?.name || file.name || "问卷",
-              surveryId: surveryId,
-              url: surveryUrl,
-            },
-          });
+      let innerFile = file?.file;
+      if (typeof innerFile === "string") {
+        try {
+          innerFile = JSON.parse(innerFile);
+        } catch {
+          // ignore
         }
       }
-    }
+      innerFile = innerFile && typeof innerFile === "object" ? innerFile : null;
 
-    // 调用统一的消息发送处理函数
-    const success = await handleFollowUpMessages(messages, {
+      const innerType = String(innerFile?.type || "");
+      const outerUrl = String(file?.URL || file?.url || "");
+      const innerUrl = String(innerFile?.url || "");
+
+      let fileType = "";
+      if (outerType === "image" || innerType.includes("image")) fileType = "image";
+      else if (innerType === "article") fileType = "article";
+      else if (innerType === "questionnaire") fileType = "questionnaire";
+      else fileType = outerType;
+
+      const url =
+        fileType === "article" || fileType === "questionnaire"
+          ? innerUrl || outerUrl
+          : outerUrl || innerUrl;
+
+      if (fileType === "image" && url) {
+        messages.push({
+          type: "image",
+          content: url,
+          name: innerFile?.name || file?.name || "图片",
+        });
+        continue;
+      }
+
+      if (fileType === "article") {
+        const fallbackArticleId =
+          String(
+            innerFile?._id ||
+              file?._id ||
+              innerFile?.articleId ||
+              file?.articleId ||
+              ""
+          ) || "";
+        const extractedId = extractIdFromUrl(url);
+        const articleId = String(extractedId || fallbackArticleId || "");
+
+        let articleUrl = String(url || "");
+        if (!articleUrl && articleId) {
+          const corpId = getCorpId();
+          articleUrl = `${__VITE_ENV__?.MP_PATIENT_PAGE_BASE_URL || ""}pages/article/index?id=${encodeURIComponent(
+            articleId
+          )}&corpId=${encodeURIComponent(corpId || "")}`;
+        }
+
+        if (!articleId && !articleUrl) continue;
+
+        messages.push({
+          type: "article",
+          content: {
+            _id: articleId,
+            title: innerFile?.name || file?.name || "宣教文章",
+            url: articleUrl,
+            subtitle: innerFile?.subtitle || "",
+            cover: innerFile?.cover || file?.URL || "",
+            articleId: articleId,
+          },
+        });
+        continue;
+      }
+
+      if (fileType === "questionnaire") {
+        const surveryId = innerFile?.surveryId || file?.surveryId;
+        if (!surveryId) continue;
+        const surveyId =
+          String(innerFile?._id || file?._id || surveryId || "") || "";
+        messages.push({
+          type: "questionnaire",
+          content: {
+            _id: surveyId,
+            name: innerFile?.name || file?.name || "问卷",
+            surveryId,
+            url: String(url || ""),
+            createBy: innerFile?.createBy,
+          },
+        });
+      }
+    }
+  }
+
+  return messages;
+}
+
+async function goChatAndSend(todo) {
+  if (!canShowSendButton(todo)) return;
+  if (!props.archiveId) return;
+
+  let gid = normalizeGroupId(currentChatGroupId.value || "");
+  if (!gid) {
+    await refreshChatRoomByApi();
+    gid = normalizeGroupId(currentChatGroupId.value || "");
+  }
+  if (!gid) {
+    toast("暂无可进入的会话");
+    return;
+  }
+
+  const messages = buildFollowUpMessages(todo);
+  if (!messages.length) {
+    console.warn("[followup] buildFollowUpMessages empty:", {
+      sendContent: todo?.sendContent,
+      fileList: todo?.fileList,
+    });
+    toast("发送内容解析失败");
+    return;
+  }
+
+  const conversationID = `GROUP${gid}`;
+
+  uni.setStorageSync(PENDING_FOLLOWUP_SEND_STORAGE_KEY, {
+    createdAt: Date.now(),
+    groupId: gid,
+    conversationID,
+    messages,
+    context: {
       userId: getUserId(),
       customerId: props.archiveId,
       customerName: props.data?.name || "",
       corpId: getCorpId(),
       env: __VITE_ENV__,
-    });
+    },
+  });
 
-    if (success) {
-      toast("消息已发送");
-      uni.navigateBack();
-    }
-  } finally {
-    sendingFollowUp.value = false;
-  }
+  uni.navigateTo({
+    url: `/pages/message/index?conversationID=${encodeURIComponent(
+      conversationID
+    )}&groupID=${encodeURIComponent(gid)}&fromCase=true&pendingFollowUpSend=1`,
+  });
 }
 
 /**
@@ -686,6 +778,83 @@ function extractSurveryIdFromUrl(url) {
   }
 }
 
+const isRefreshingChatRoom = ref(false);
+let lastRefreshChatRoomAt = 0;
+
+function parseAnyTimeMs(v) {
+  if (v === null || v === undefined) return 0;
+  if (typeof v === "number") return v;
+  const s = String(v).trim();
+  if (!s) return 0;
+  if (/^\d{10,13}$/.test(s)) return Number(s.length === 10 ? `${s}000` : s);
+  const d = dayjs(s);
+  return d.isValid() ? d.valueOf() : 0;
+}
+
+async function refreshChatRoomByApi() {
+  const customerId = String(props.archiveId || "");
+  if (!customerId) return;
+  if (isRefreshingChatRoom.value) return;
+  const now = Date.now();
+  if (now - lastRefreshChatRoomAt < 5000) return;
+  lastRefreshChatRoomAt = now;
+
+  isRefreshingChatRoom.value = true;
+  try {
+    await ensureDoctor();
+    const corpId = getCorpId();
+    const teamId = getCurrentTeamId();
+
+    const baseQuery = {
+      corpId,
+      customerId,
+      page: 1,
+      pageSize: 50,
+    };
+
+    const queryWithTeam = teamId ? { ...baseQuery, teamId } : baseQuery;
+    let detailRes = await api("getGroupList", queryWithTeam, false);
+    let details = Array.isArray(detailRes?.data?.list) ? detailRes.data.list : [];
+    if (!details.length && teamId) {
+      detailRes = await api("getGroupList", baseQuery, false);
+      details = Array.isArray(detailRes?.data?.list) ? detailRes.data.list : [];
+    }
+
+    if (!detailRes?.success || !details.length) {
+      chatGroupId.value = "";
+      return;
+    }
+
+    const currentTeamId = getCurrentTeamId();
+    const detailsForCurrentTeam = currentTeamId
+      ? details.filter(
+          (g) =>
+            String(g?.teamId || g?.team?._id || g?.team?.teamId || "") ===
+            currentTeamId
+        )
+      : [];
+    const candidates = detailsForCurrentTeam.length ? detailsForCurrentTeam : details;
+
+    const statusRank = (s) => (s === "processing" ? 3 : s === "pending" ? 2 : 1);
+    candidates.sort((a, b) => {
+      const ra = statusRank(String(a?.orderStatus || ""));
+      const rb = statusRank(String(b?.orderStatus || ""));
+      if (rb !== ra) return rb - ra;
+      const ta = parseAnyTimeMs(a?.updatedAt) || parseAnyTimeMs(a?.createdAt);
+      const tb = parseAnyTimeMs(b?.updatedAt) || parseAnyTimeMs(b?.createdAt);
+      return tb - ta;
+    });
+
+    const best = candidates[0] || {};
+    const gid = normalizeGroupId(best.groupId || best.groupID || best.group_id || "");
+    chatGroupId.value = gid ? String(gid) : "";
+  } catch (e) {
+    // ignore
+  } finally {
+    isRefreshingChatRoom.value = false;
+  }
+}
+
 // ---- filter popup ----
 const filterPopupRef = ref(null);
 const state = ref(null);