diff --git a/src/assets/images/linkPrediction/icon/triangle-piont.png b/src/assets/images/linkPrediction/icon/triangle-piont.png
new file mode 100644
index 0000000..3dc7966
Binary files /dev/null and b/src/assets/images/linkPrediction/icon/triangle-piont.png differ
diff --git a/src/service/api/linkPrediction.js b/src/service/api/linkPrediction.js
index 5d918cf..d950d77 100644
--- a/src/service/api/linkPrediction.js
+++ b/src/service/api/linkPrediction.js
@@ -14,7 +14,7 @@ export function getInteractionCommunityNodes() {
 export function getInteractionCommunityDetailNodes(ids, relationId, time = "2024-05-16 16:56:04") {
   if (relationId != -1) {
     return http.get(
-      `/linkPrediction/interaction/community_detail?groupIds=${ids}&relationId=${relationId}&dateTime=${time}`
+      `/linkPrediction/interaction/community_detail?groupIds=${ids}&dateTime=${time}&relationId=${relationId}`
     )
   } else {
     return http.get(`/linkPrediction/interaction/community_detail?groupIds=${ids}&dateTime=${time}`)
diff --git a/src/store/llinkPrediction/index.js b/src/store/llinkPrediction/index.js
index 5df1832..58b46eb 100644
--- a/src/store/llinkPrediction/index.js
+++ b/src/store/llinkPrediction/index.js
@@ -11,8 +11,7 @@ import {
   getSocialCommunityList,
   getSocialCommunityStatistics,
   getSocialCommunityDetailNodes,
-  getSocialPostListByRelationId,
-  getInteractionCommunityDetailFromUserGroup
+  getSocialPostListByRelationId
 } from "@/service/api/linkPrediction"
 
 import defaultAvatar from "@/assets/images/avatar/default.png"
@@ -33,6 +32,7 @@ export const useCharacterInteractionStore = defineStore("characterInteraction",
     communityDetailNodeList: [], //节点用户列表
     timeList: [],
     predictionUserIds: [], //包含从用户组选择的用户id或者是点击某个社团或者连边后，所需要高亮的所有用户的id
+    curRelationId: "",
     anlysisList: [
       {
         id: 1,
@@ -175,13 +175,24 @@ export const useCharacterInteractionStore = defineStore("characterInteraction",
       if (res.code != 200) return
       this.communityNodeList = res.data
     },
-    async initGraphCommunityDetailNode(ids, relationId = -1, time = "2024-05-16 16:56:04") {
+    async initGraphCommunityDetailNode(ids, time = "2024-05-16 16:56:04", relationId = -1) {
       this.curSelecedGroupIds = ids
       const res = await getInteractionCommunityDetailNodes(ids, relationId, time)
       if (res.code != 200) return
+      const customStatisticsObj = Object.assign({}, res.data.communityStatistics)
+      //计算两个用户是否同属与同一个社团
+
+      if (
+        customStatisticsObj.groupCount == null &&
+        customStatisticsObj.hiddenInteractionCount == null
+      ) {
+        customStatisticsObj.hiddenInteractionCount = 1
+        customStatisticsObj.groupCount = ids[0] === ids[1] ? 1 : 2
+      }
+
       this.statisticsDetailList = this.statisticsDetailList.map((item) => ({
         ...item,
-        count: res.data.communityStatistics[item.key]
+        count: customStatisticsObj[item.key]
       }))
       this.communityDetailNodeRelation = res.data.userRelation
       this.communityDetailNodeList = res.data.userList
diff --git a/src/views/LinkPrediction/characterInteraction/index.vue b/src/views/LinkPrediction/characterInteraction/index.vue
index 4aff974..72b946e 100644
--- a/src/views/LinkPrediction/characterInteraction/index.vue
+++ b/src/views/LinkPrediction/characterInteraction/index.vue
@@ -54,11 +54,12 @@ const handleSelectedUserGroup = (group) => {
   interactionStore.curComponent = "detailNode"
   interactionStore.timeList = group.timeList //保存从用户列表选择的用户组，为了显示这两个用户交互的时间切片
   interactionStore.userIds = group.list.map((user) => user.userId) //保存选中的用户组的所有用户id，为了高亮二级关系图的用户
+  interactionStore.curRelationId = group.relationId //保存当前点击的relationid，为了区分到底是从哪点进二级界面的
   interactionStore.initInteractionPostList(group.relationId)
   interactionStore.initGraphCommunityDetailNode(
     group.list.map((item) => item.groupId),
-    group.relationId,
-    "2024-05-16 16:56:04"
+    "2024-05-16 16:56:04",
+    group.relationId
   )
 }
 
diff --git a/src/views/LinkPrediction/components/detailNode.vue b/src/views/LinkPrediction/components/detailNode.vue
index d9795b3..d5f3812 100644
--- a/src/views/LinkPrediction/components/detailNode.vue
+++ b/src/views/LinkPrediction/components/detailNode.vue
@@ -16,21 +16,36 @@
     <div class="time-axis">
       <div class="time">{{ TansTimestamp(startTime, "YYYY.MM.DD HH:mm:ss") }}</div>
       <div class="axis" ref="axisRef" @pointerdown="handlePointerDown">
-        <div
-          class="time-section"
+        <el-tooltip
           v-for="time in timeList"
           :key="time"
-          :style="{ left: getTimeSectionLeft(time) + 5 + 'px' }"
-        ></div>
+          :content="TansTimestamp(time, 'YYYY.MM.DD HH:mm:ss')"
+          placement="bottom"
+          effect="light"
+        >
+          <div class="time-section" :style="{ left: getTimeSectionLeft(time) + 5 + 'px' }"></div>
+        </el-tooltip>
+
         <div class="progress-bar" :style="trackStyle"></div>
-        <div class="active-sign" :style="{ left: `${currentPosition}px` }">
-          <div class="active-needle"></div>
+        <div class="active-sign">
+          <el-tooltip
+            :content="TansTimestamp(timeList[timeList.length - 1], 'YYYY.MM.DD HH:mm:ss')"
+            placement="bottom"
+            effect="light"
+          >
+            <div class="active-needle" :style="showHidden"></div>
+          </el-tooltip>
+
           <el-tooltip
             :content="TansTimestamp(currentTime, 'YYYY.MM.DD HH:mm:ss')"
             placement="bottom"
             effect="light"
           >
-            <div class="timeLine-point" @pointerdown.stop="handlePointPointerDown"></div>
+            <div
+              class="timeLine-point"
+              @pointerdown.stop="handlePointPointerDown"
+              :style="{ left: `${currentPosition}px` }"
+            ></div>
           </el-tooltip>
         </div>
       </div>
@@ -100,6 +115,16 @@ const getTimeSectionLeft = computed(() => {
   }
 })
 
+// 让 active-needle 标定在 timeList 最后一个时间点
+const showHidden = computed(() => {
+  if (!timeList.value || timeList.value.length === 0) return {}
+  // 取最后一个时间点
+  const lastTime = timeList.value[timeList.value.length - 1]
+  // 计算 left 位置
+  const left = getTimeSectionLeft.value(lastTime) + 5 // +5px 保持和 time-section 对齐
+  return { left: `${left}px` }
+})
+
 // 根据位置计算时间
 const getTimeFromPosition = (position) => {
   const ratio = Math.max(0, Math.min(1, position / axisWidth))
@@ -119,7 +144,15 @@ const handlePointerDown = (e) => {
 
   // 点击后输出当前时间
   const currentTimes = TansTimestamp(currentTime.value, "YYYY-MM-DD HH:mm:ss")
-  interactionStore.initGraphCommunityDetailNode(interactionStore.curSelecedGroupIds, currentTimes)
+  if (interactionStore.curRelationId == "") {
+    interactionStore.initGraphCommunityDetailNode(interactionStore.curSelecedGroupIds, currentTimes)
+  } else {
+    interactionStore.initGraphCommunityDetailNode(
+      interactionStore.curSelecedGroupIds,
+      currentTimes,
+      interactionStore.curRelationId
+    )
+  }
 }
 
 // 时间点指针按下事件
@@ -144,7 +177,18 @@ const handlePointPointerDown = (e) => {
     isDragging.value = false
     // 拖动结束时输出当前时间
     const currentTimes = TansTimestamp(currentTime.value, "YYYY-MM-DD HH:mm:ss")
-    interactionStore.initGraphCommunityDetailNode(interactionStore.curSelecedGroupIds, currentTimes)
+    if (interactionStore.curRelationId == "") {
+      interactionStore.initGraphCommunityDetailNode(
+        interactionStore.curSelecedGroupIds,
+        currentTimes
+      )
+    } else {
+      interactionStore.initGraphCommunityDetailNode(
+        interactionStore.curSelecedGroupIds,
+        currentTimes,
+        interactionStore.curRelationId
+      )
+    }
 
     document.removeEventListener("pointermove", handlePointerMove)
     document.removeEventListener("pointerup", handlePointerUp)
@@ -518,7 +562,7 @@ onMounted(() => {
           height: 34px;
           background-image: url("@/assets/images/point.png");
           background-size: cover;
-          bottom: 1px;
+          bottom: -8px;
           left: -11px;
           position: absolute;
         }
diff --git a/src/views/LinkPrediction/components/graph.vue b/src/views/LinkPrediction/components/graph.vue
index a19b1de..c81380e 100644
--- a/src/views/LinkPrediction/components/graph.vue
+++ b/src/views/LinkPrediction/components/graph.vue
@@ -27,11 +27,13 @@ const props = defineProps({
 //点击社团节点
 const handleClickNode = async (nodeInfo) => {
   interactionStore.curComponent = "detailNode"
+  interactionStore.curRelationId = ""
   interactionStore.initGraphCommunityDetailNode([nodeInfo.id])
 }
 //点击社团边
 const handleClickEdge = (edgeInfo) => {
   interactionStore.curComponent = "detailNode"
+  interactionStore.curRelationId = ""
   interactionStore.initGraphCommunityDetailNode([edgeInfo.source, edgeInfo.target])
 }
 
diff --git a/src/views/LinkPrediction/components/userPanel.vue b/src/views/LinkPrediction/components/userPanel.vue
index 73f7e36..76959a4 100644
--- a/src/views/LinkPrediction/components/userPanel.vue
+++ b/src/views/LinkPrediction/components/userPanel.vue
@@ -13,7 +13,7 @@
             <div class="group-type-content">TOP{{ group.rank }}</div>
           </div>
           <div class="user-list-item" v-for="child in group.list" :key="child.id">
-            <img :src="getAvatarUrl(child.avatarData)" alt="" class="avatar" />
+            <img :src="getAvatarUrl(child.avatarData) ?? defaultAvatar" class="avatar" />
             <div class="user-info">
               <div class="username">{{ child.userName }}</div>
               <div class="userState">
@@ -36,6 +36,7 @@
 
 <script setup>
 import { defineProps, defineEmits, ref } from "vue"
+import defaultAvatar from "@/assets/images/avatar/default.png"
 import { getAvatarUrl } from "@/utils/transform"
 const curUserGroupIndex = ref(0)
 const emit = defineEmits(["click:selectedGroup"])