diff --git a/apps/web-wasm/src/components/session/insights/GroupRelationshipInsights.vue b/apps/web-wasm/src/components/session/insights/GroupRelationshipInsights.vue
index fd771950..67d25136 100644
--- a/apps/web-wasm/src/components/session/insights/GroupRelationshipInsights.vue
+++ b/apps/web-wasm/src/components/session/insights/GroupRelationshipInsights.vue
@@ -3,7 +3,7 @@ import { computed, ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { SectionTabs } from '@/components/navigation'
 import ClusterView from '@/components/analysis/relationships/ClusterView.vue'
-import InteractionView from '@/components/analysis/relationships/InteractionView.vue'
+import GroupRelationshipGalaxyView from '@/components/analysis/relationships/GroupRelationshipGalaxyView.vue'
 import MentionRankingView from '@/components/analysis/relationships/MentionRankingView.vue'
 import type { TimeFilter } from '@openchatlab/shared-types'
 import { getProximityTimeFilter } from './group-relationship-filter'
@@ -14,13 +14,13 @@ const props = defineProps<{
 }>()
 
 const { t } = useI18n()
-const activeSubTab = ref('mention-graph')
+const activeSubTab = ref('relationship-galaxy')
 const proximityTimeFilter = computed(() => getProximityTimeFilter(props.timeFilter))
 const subTabs = computed(() => [
   {
-    id: 'mention-graph',
-    label: t('analysis.subTabs.groupRelationships.mentionGraph'),
-    icon: 'i-heroicons-arrows-right-left',
+    id: 'relationship-galaxy',
+    label: t('analysis.subTabs.groupRelationships.relationshipGalaxy'),
+    icon: 'i-lucide-orbit',
   },
   {
     id: 'mention-ranking',
@@ -41,8 +41,8 @@ const subTabs = computed(() => [
 
     <div class="min-h-0 flex-1 overflow-y-auto">
       <Transition name="fade" mode="out-in">
-        <InteractionView
-          v-if="activeSubTab === 'mention-graph'"
+        <GroupRelationshipGalaxyView
+          v-if="activeSubTab === 'relationship-galaxy'"
           :session-id="props.sessionId"
           :time-filter="props.timeFilter"
         />
diff --git a/src/components/analysis/relationships/GroupRelationshipGalaxyView.vue b/src/components/analysis/relationships/GroupRelationshipGalaxyView.vue
new file mode 100644
index 00000000..2ea242f7
--- /dev/null
+++ b/src/components/analysis/relationships/GroupRelationshipGalaxyView.vue
@@ -0,0 +1,337 @@
+<script setup lang="ts">
+import { computed, nextTick, onBeforeUnmount, onMounted, ref, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import type {
+  GroupRelationshipGalaxyData,
+  GroupRelationshipGalaxyMemberDetail,
+  RelationshipGalaxyRenderNode,
+  TimeFilter,
+} from '@openchatlab/shared-types'
+import { LoadingState } from '@/components/UI'
+import LazyAvatar from '@/components/common/avatar/LazyAvatar.vue'
+import RelationshipGalaxyThreeCanvas from '@/components/charts/relationship-galaxy/RelationshipGalaxyThreeCanvas.vue'
+import { useDataService } from '@/services'
+import { reportError } from '@/services/log-report'
+import { buildGroupRelationshipGalaxyConnections } from './group-relationship-galaxy-view'
+
+type GalaxyCanvasInstance = {
+  focusNode: (key: string) => boolean
+  fitView: () => void
+}
+
+const props = defineProps<{
+  sessionId: string
+  timeFilter?: TimeFilter
+}>()
+
+const { t, locale } = useI18n()
+const dataService = useDataService()
+const canvasRef = ref<GalaxyCanvasInstance | null>(null)
+const galaxyData = ref<GroupRelationshipGalaxyData | null>(null)
+const selectedKey = ref<string | null>(null)
+const isLoading = ref(false)
+const loadError = ref('')
+const webglUnavailable = ref(false)
+const isWideLayout = ref(false)
+let requestId = 0
+let detailMediaQuery: MediaQueryList | null = null
+
+const selectedMember = computed(() => {
+  if (!selectedKey.value) return null
+  return galaxyData.value?.members.find((member) => member.key === selectedKey.value) ?? null
+})
+const connections = computed(() => buildGroupRelationshipGalaxyConnections(galaxyData.value, selectedKey.value))
+const hasGraph = computed(() => (galaxyData.value?.graph.nodes.length ?? 0) > 0)
+const safeInsetRight = computed(() => (selectedMember.value && isWideLayout.value ? 392 : 0))
+const numberFormatter = computed(
+  () => new Intl.NumberFormat(locale.value, { maximumFractionDigits: 1, notation: 'compact' })
+)
+const dateFormatter = computed(
+  () => new Intl.DateTimeFormat(locale.value, { year: 'numeric', month: 'short', day: 'numeric' })
+)
+
+async function loadData() {
+  if (!props.sessionId) return
+  const currentRequestId = ++requestId
+  isLoading.value = true
+  loadError.value = ''
+  webglUnavailable.value = false
+  selectedKey.value = null
+
+  try {
+    const result = await dataService.getGroupRelationshipGalaxy(props.sessionId, props.timeFilter)
+    if (currentRequestId !== requestId) return
+    galaxyData.value = result
+  } catch (error) {
+    if (currentRequestId !== requestId) return
+    const message = error instanceof Error ? error.message : String(error)
+    loadError.value = message
+    galaxyData.value = null
+    reportError(`Group relationship galaxy load failed: ${message}`, error instanceof Error ? error.stack : undefined)
+  } finally {
+    if (currentRequestId === requestId) isLoading.value = false
+  }
+}
+
+async function selectNode(node: RelationshipGalaxyRenderNode) {
+  selectedKey.value = node.key
+  await nextTick()
+  canvasRef.value?.focusNode(node.key)
+}
+
+async function selectMember(member: GroupRelationshipGalaxyMemberDetail) {
+  selectedKey.value = member.key
+  await nextTick()
+  canvasRef.value?.focusNode(member.key)
+}
+
+function clearSelection() {
+  selectedKey.value = null
+}
+
+async function resetView() {
+  selectedKey.value = null
+  await nextTick()
+  canvasRef.value?.fitView()
+}
+
+function handleCanvasFallback() {
+  webglUnavailable.value = true
+  selectedKey.value = null
+}
+
+function syncDetailLayout() {
+  isWideLayout.value = detailMediaQuery?.matches ?? false
+}
+
+function avatarText(member: GroupRelationshipGalaxyMemberDetail): string {
+  return (member.displayName || member.platformId || '?').slice(0, 1)
+}
+
+function formatNumber(value: number): string {
+  return numberFormatter.value.format(value)
+}
+
+function formatScore(value: number): string {
+  return `${Math.round(value * 100)}`
+}
+
+function formatTime(value: number | null): string {
+  if (!value) return '—'
+  return dateFormatter.value.format(new Date(value * 1000))
+}
+
+watch(
+  () => [props.sessionId, props.timeFilter?.startTs, props.timeFilter?.endTs, props.timeFilter?.memberId],
+  () => void loadData(),
+  { immediate: true }
+)
+
+onMounted(() => {
+  if (typeof window === 'undefined') return
+  detailMediaQuery = window.matchMedia('(min-width: 768px)')
+  syncDetailLayout()
+  detailMediaQuery.addEventListener('change', syncDetailLayout)
+})
+
+onBeforeUnmount(() => {
+  requestId++
+  detailMediaQuery?.removeEventListener('change', syncDetailLayout)
+})
+</script>
+
+<template>
+  <div class="relative h-full min-h-[420px] w-full overflow-hidden bg-[#050302] text-white">
+    <LoadingState v-if="isLoading" variant="page" :text="t('views.groupRelationshipGalaxy.loading')" />
+
+    <div v-else-if="loadError" class="flex h-full items-center justify-center px-6 text-center">
+      <div class="max-w-sm">
+        <UIcon name="i-lucide-circle-alert" class="mx-auto h-10 w-10 text-rose-300" />
+        <h3 class="mt-3 text-base font-semibold">{{ t('views.groupRelationshipGalaxy.loadFailed') }}</h3>
+        <p class="mt-1 line-clamp-2 text-sm text-white/50">{{ loadError }}</p>
+        <UButton class="mt-4" color="neutral" variant="soft" icon="i-lucide-refresh-cw" @click="loadData">
+          {{ t('common.retry') }}
+        </UButton>
+      </div>
+    </div>
+
+    <div v-else-if="webglUnavailable" class="flex h-full items-center justify-center px-6 text-center">
+      <div class="max-w-sm">
+        <UIcon name="i-lucide-orbit" class="mx-auto h-11 w-11 text-amber-200/80" />
+        <h3 class="mt-3 text-base font-semibold">{{ t('views.groupRelationshipGalaxy.webglUnavailable') }}</h3>
+        <p class="mt-1 text-sm leading-6 text-white/50">
+          {{ t('views.groupRelationshipGalaxy.webglUnavailableDescription') }}
+        </p>
+      </div>
+    </div>
+
+    <div v-else-if="!hasGraph" class="flex h-full items-center justify-center px-6 text-center">
+      <div class="max-w-sm">
+        <UIcon name="i-lucide-sparkles" class="mx-auto h-11 w-11 text-sky-200/70" />
+        <h3 class="mt-3 text-base font-semibold">{{ t('views.groupRelationshipGalaxy.emptyTitle') }}</h3>
+        <p class="mt-1 text-sm leading-6 text-white/50">
+          {{ t('views.groupRelationshipGalaxy.emptyDescription') }}
+        </p>
+      </div>
+    </div>
+
+    <template v-else-if="galaxyData">
+      <RelationshipGalaxyThreeCanvas
+        ref="canvasRef"
+        :graph="galaxyData.graph"
+        :selected-key="selectedKey"
+        :safe-inset-right="safeInsetRight"
+        :label="t('views.groupRelationshipGalaxy.canvasLabel')"
+        @clear-selection="clearSelection"
+        @fallback="handleCanvasFallback"
+        @select-node="selectNode"
+      />
+
+      <UButton
+        icon="i-lucide-scan"
+        color="neutral"
+        variant="soft"
+        size="xs"
+        class="absolute left-4 top-4 z-20 border border-white/8 bg-black/25 text-white/75 backdrop-blur-md hover:bg-white/10 hover:text-white"
+        :aria-label="t('views.groupRelationshipGalaxy.resetView')"
+        @click="resetView"
+      >
+        {{ t('views.groupRelationshipGalaxy.resetView') }}
+      </UButton>
+
+      <aside
+        v-if="selectedMember"
+        class="dark absolute inset-x-3 bottom-3 z-20 flex max-h-[72vh] flex-col overflow-hidden rounded-2xl border border-white/8 bg-[#0b0c12]/88 text-white shadow-overlay backdrop-blur-xl md:inset-x-auto md:bottom-4 md:right-4 md:top-4 md:max-h-none md:w-[360px]"
+      >
+        <UButton
+          icon="i-lucide-x"
+          color="neutral"
+          variant="ghost"
+          size="xs"
+          class="absolute right-2.5 top-2.5 z-10 text-white/60 hover:bg-white/8 hover:text-white"
+          :aria-label="t('views.groupRelationshipGalaxy.closeDetail')"
+          @click="clearSelection"
+        />
+
+        <div class="flex min-h-0 flex-1 flex-col gap-4 px-4 pb-4 pt-5">
+          <header class="flex shrink-0 items-center gap-3 pr-8">
+            <LazyAvatar
+              :src="selectedMember.avatar"
+              :alt="selectedMember.displayName"
+              :text="avatarText(selectedMember)"
+              root-class="h-11 w-11 shrink-0 overflow-hidden rounded-xl border border-white/10"
+              image-class="h-11 w-11 rounded-xl object-cover"
+              fallback-class="flex h-11 w-11 items-center justify-center rounded-xl bg-sky-400/12 text-sm font-bold text-sky-200"
+            />
+            <div class="min-w-0 flex-1">
+              <div class="flex items-center gap-2">
+                <h3 class="truncate text-base font-semibold">{{ selectedMember.displayName }}</h3>
+                <span class="rounded-full bg-white/8 px-2 py-0.5 font-mono text-[10px] text-white/55">
+                  #{{ selectedMember.rank }}
+                </span>
+              </div>
+              <p class="mt-0.5 truncate text-xs text-white/40">{{ selectedMember.platformId }}</p>
+            </div>
+          </header>
+
+          <section class="grid shrink-0 grid-cols-3 gap-1.5">
+            <div class="rounded-xl border border-white/6 bg-white/3 px-2.5 py-2">
+              <p class="text-[9px] uppercase tracking-wider text-white/35">
+                {{ t('views.groupRelationshipGalaxy.messageCount') }}
+              </p>
+              <p class="mt-1 font-mono text-sm font-semibold">{{ formatNumber(selectedMember.messageCount) }}</p>
+            </div>
+            <div class="rounded-xl border border-white/6 bg-white/3 px-2.5 py-2">
+              <p class="text-[9px] uppercase tracking-wider text-white/35">
+                {{ t('views.groupRelationshipGalaxy.relationshipScore') }}
+              </p>
+              <p class="mt-1 font-mono text-sm font-semibold text-sky-200">
+                {{ formatScore(selectedMember.relationshipScore) }}
+              </p>
+            </div>
+            <div class="rounded-xl border border-white/6 bg-white/3 px-2.5 py-2">
+              <p class="text-[9px] uppercase tracking-wider text-white/35">
+                {{ t('views.groupRelationshipGalaxy.lastInteraction') }}
+              </p>
+              <p class="mt-1 truncate text-xs font-semibold">{{ formatTime(selectedMember.lastInteractionTs) }}</p>
+            </div>
+          </section>
+
+          <section class="shrink-0">
+            <h4 class="mb-2 text-[10px] font-semibold uppercase tracking-[0.16em] text-white/40">
+              {{ t('views.groupRelationshipGalaxy.signalComposition') }}
+            </h4>
+            <div class="grid grid-cols-3 gap-1.5">
+              <div class="rounded-xl bg-violet-400/8 px-2.5 py-2 text-violet-100">
+                <p class="text-[10px] text-violet-100/50">{{ t('views.groupRelationshipGalaxy.replies') }}</p>
+                <p class="mt-0.5 font-mono text-sm font-semibold">
+                  {{ formatNumber(selectedMember.replyInteractionCount) }}
+                </p>
+              </div>
+              <div class="rounded-xl bg-sky-400/8 px-2.5 py-2 text-sky-100">
+                <p class="text-[10px] text-sky-100/50">{{ t('views.groupRelationshipGalaxy.mentions') }}</p>
+                <p class="mt-0.5 font-mono text-sm font-semibold">
+                  {{ formatNumber(selectedMember.mentionInteractionCount) }}
+                </p>
+              </div>
+              <div class="rounded-xl bg-amber-300/8 px-2.5 py-2 text-amber-100">
+                <p class="text-[10px] text-amber-100/50">{{ t('views.groupRelationshipGalaxy.proximity') }}</p>
+                <p class="mt-0.5 font-mono text-sm font-semibold">
+                  {{ formatNumber(selectedMember.coOccurrenceCount) }}
+                </p>
+              </div>
+            </div>
+          </section>
+
+          <section class="flex min-h-0 flex-1 flex-col">
+            <div class="mb-2 flex items-center justify-between">
+              <h4 class="text-[10px] font-semibold uppercase tracking-[0.16em] text-white/40">
+                {{ t('views.groupRelationshipGalaxy.strongConnections') }}
+              </h4>
+              <span class="font-mono text-[10px] text-white/30">{{ connections.length }}</span>
+            </div>
+
+            <div v-if="connections.length" class="min-h-0 flex-1 space-y-1 overflow-y-auto pr-1 scrollbar-thin">
+              <button
+                v-for="connection in connections"
+                :key="connection.edge.id"
+                type="button"
+                class="group flex w-full items-center gap-2.5 rounded-xl border border-transparent px-2 py-2 text-left transition-colors hover:border-white/6 hover:bg-white/5"
+                @click="selectMember(connection.member)"
+              >
+                <LazyAvatar
+                  :src="connection.member.avatar"
+                  :alt="connection.member.displayName"
+                  :text="avatarText(connection.member)"
+                  root-class="h-7 w-7 shrink-0 overflow-hidden rounded-lg border border-white/8"
+                  image-class="h-7 w-7 rounded-lg object-cover"
+                  fallback-class="flex h-7 w-7 items-center justify-center rounded-lg bg-white/6 text-[10px] font-semibold text-white/65"
+                />
+                <div class="min-w-0 flex-1">
+                  <p class="truncate text-xs font-semibold text-white/85 group-hover:text-white">
+                    {{ connection.member.displayName }}
+                  </p>
+                  <p class="mt-0.5 truncate text-[10px] text-white/35">
+                    {{
+                      t('views.groupRelationshipGalaxy.connectionSignals', {
+                        replies: connection.edge.replyInteractionCount,
+                        mentions: connection.edge.mentionInteractionCount,
+                        proximity: connection.edge.coOccurrenceCount,
+                      })
+                    }}
+                  </p>
+                </div>
+                <span class="shrink-0 font-mono text-xs font-semibold text-sky-200/80">
+                  {{ formatNumber(connection.edge.weight) }}
+                </span>
+              </button>
+            </div>
+            <p v-else class="py-5 text-center text-xs text-white/35">
+              {{ t('views.groupRelationshipGalaxy.noConnections') }}
+            </p>
+          </section>
+        </div>
+      </aside>
+    </template>
+  </div>
+</template>
diff --git a/src/components/analysis/relationships/group-relationship-galaxy-view.test.ts b/src/components/analysis/relationships/group-relationship-galaxy-view.test.ts
new file mode 100644
index 00000000..0e8c1933
--- /dev/null
+++ b/src/components/analysis/relationships/group-relationship-galaxy-view.test.ts
@@ -0,0 +1,37 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+import type { GroupRelationshipGalaxyData } from '@openchatlab/shared-types'
+import { buildGroupRelationshipGalaxyConnections } from './group-relationship-galaxy-view'
+
+const data = {
+  members: [
+    { key: 'a', rank: 1 },
+    { key: 'b', rank: 2 },
+    { key: 'c', rank: 3 },
+  ],
+  edges: [
+    { id: 'a-c', sourceKey: 'a', targetKey: 'c', weight: 2, lastInteractionTs: 200 },
+    { id: 'a-b', sourceKey: 'b', targetKey: 'a', weight: 5, lastInteractionTs: 100 },
+    { id: 'b-c', sourceKey: 'b', targetKey: 'c', weight: 8, lastInteractionTs: 300 },
+  ],
+} as GroupRelationshipGalaxyData
+
+test('builds the selected member connection list from either edge direction', () => {
+  const connections = buildGroupRelationshipGalaxyConnections(data, 'a')
+
+  assert.deepEqual(
+    connections.map((item) => [item.member.key, item.edge.id]),
+    [
+      ['b', 'a-b'],
+      ['c', 'a-c'],
+    ]
+  )
+})
+
+test('limits the detail list without including unrelated strong edges', () => {
+  assert.deepEqual(
+    buildGroupRelationshipGalaxyConnections(data, 'a', 1).map((item) => item.member.key),
+    ['b']
+  )
+  assert.deepEqual(buildGroupRelationshipGalaxyConnections(data, null), [])
+})
diff --git a/src/components/analysis/relationships/group-relationship-galaxy-view.ts b/src/components/analysis/relationships/group-relationship-galaxy-view.ts
new file mode 100644
index 00000000..2352c581
--- /dev/null
+++ b/src/components/analysis/relationships/group-relationship-galaxy-view.ts
@@ -0,0 +1,34 @@
+import type {
+  GroupRelationshipGalaxyData,
+  GroupRelationshipGalaxyEdgeDetail,
+  GroupRelationshipGalaxyMemberDetail,
+} from '@openchatlab/shared-types'
+
+export interface GroupRelationshipGalaxyConnection {
+  member: GroupRelationshipGalaxyMemberDetail
+  edge: GroupRelationshipGalaxyEdgeDetail
+}
+
+export function buildGroupRelationshipGalaxyConnections(
+  data: GroupRelationshipGalaxyData | null,
+  selectedKey: string | null,
+  limit = 10
+): GroupRelationshipGalaxyConnection[] {
+  if (!data || !selectedKey) return []
+  const memberByKey = new Map(data.members.map((member) => [member.key, member]))
+  return data.edges
+    .flatMap((edge): GroupRelationshipGalaxyConnection[] => {
+      if (edge.sourceKey !== selectedKey && edge.targetKey !== selectedKey) return []
+      const otherKey = edge.sourceKey === selectedKey ? edge.targetKey : edge.sourceKey
+      const member = memberByKey.get(otherKey)
+      return member ? [{ member, edge }] : []
+    })
+    .sort(
+      (a, b) =>
+        b.edge.weight - a.edge.weight ||
+        (b.edge.lastInteractionTs ?? 0) - (a.edge.lastInteractionTs ?? 0) ||
+        a.member.rank - b.member.rank ||
+        a.member.key.localeCompare(b.member.key)
+    )
+    .slice(0, Math.max(0, limit))
+}
diff --git a/src/components/charts/relationship-galaxy/RelationshipGalaxyThreeCanvas.vue b/src/components/charts/relationship-galaxy/RelationshipGalaxyThreeCanvas.vue
index 18741d45..5d8d3fea 100644
--- a/src/components/charts/relationship-galaxy/RelationshipGalaxyThreeCanvas.vue
+++ b/src/components/charts/relationship-galaxy/RelationshipGalaxyThreeCanvas.vue
@@ -71,6 +71,7 @@ const props = withDefaults(
 
 const emit = defineEmits<{
   (event: 'select-node', node: RelationshipGalaxyRenderNode): void
+  (event: 'clear-selection'): void
   (event: 'fallback'): void
 }>()
 
@@ -491,7 +492,10 @@ function handlePointerLeave() {
 
 function handleClick() {
   const key = hoveredKey.value
-  if (!key) return
+  if (!key) {
+    emit('clear-selection')
+    return
+  }
   const object = nodeObjects.get(key)
   if (!object) return
   emit('select-node', object.sceneNode.node)
diff --git a/src/i18n/locales/en-US/analysis.json b/src/i18n/locales/en-US/analysis.json
index 74eb49ee..564734d2 100644
--- a/src/i18n/locales/en-US/analysis.json
+++ b/src/i18n/locales/en-US/analysis.json
@@ -81,7 +81,7 @@
       "catchphrase": "Catchphrases"
     },
     "groupRelationships": {
-      "mentionGraph": "Mention Graph",
+      "relationshipGalaxy": "Relationship Galaxy",
       "mentionRanking": "Mention Ranking",
       "proximity": "Proximity"
     },
diff --git a/src/i18n/locales/en-US/views.json b/src/i18n/locales/en-US/views.json
index 6425b630..ff5d1af4 100644
--- a/src/i18n/locales/en-US/views.json
+++ b/src/i18n/locales/en-US/views.json
@@ -118,6 +118,27 @@
     "graphHint": "{nodes} members, {links} interactions",
     "noInteraction": "No mention interaction data"
   },
+  "groupRelationshipGalaxy": {
+    "canvasLabel": "Group interaction relationship galaxy",
+    "loading": "Mapping group relationships...",
+    "loadFailed": "Failed to load the relationship galaxy",
+    "webglUnavailable": "The relationship galaxy is unavailable",
+    "webglUnavailableDescription": "Enable hardware acceleration or try an environment that supports WebGL.",
+    "emptyTitle": "Not enough interaction data",
+    "emptyDescription": "At least two members need replies, mentions, or nearby messages in this time range.",
+    "resetView": "Reset view",
+    "closeDetail": "Close member details",
+    "messageCount": "Group messages",
+    "relationshipScore": "Relationship strength",
+    "lastInteraction": "Last interaction",
+    "signalComposition": "Interaction signals",
+    "replies": "Replies",
+    "mentions": "Mentions",
+    "proximity": "Proximity",
+    "strongConnections": "Closest connections",
+    "connectionSignals": "{replies} replies · {mentions} mentions · {proximity} nearby",
+    "noConnections": "No direct connections to display"
+  },
   "relationship": {
     "empty": {
       "title": "No Relationship Data",
diff --git a/src/i18n/locales/ja-JP/analysis.json b/src/i18n/locales/ja-JP/analysis.json
index e5af05bc..16ed14fb 100644
--- a/src/i18n/locales/ja-JP/analysis.json
+++ b/src/i18n/locales/ja-JP/analysis.json
@@ -81,7 +81,7 @@
       "catchphrase": "口癖"
     },
     "groupRelationships": {
-      "mentionGraph": "{'@'} 関係図",
+      "relationshipGalaxy": "関係ギャラクシー",
       "mentionRanking": "{'@'} ランキング",
       "proximity": "発言の近接度"
     },
diff --git a/src/i18n/locales/ja-JP/views.json b/src/i18n/locales/ja-JP/views.json
index bfdcf074..3f54b87e 100644
--- a/src/i18n/locales/ja-JP/views.json
+++ b/src/i18n/locales/ja-JP/views.json
@@ -118,6 +118,27 @@
     "graphHint": "全 {nodes} 名のメンバー、{links} 件のインタラクション",
     "noInteraction": "メンションデータがありません"
   },
+  "groupRelationshipGalaxy": {
+    "canvasLabel": "グループの交流関係ギャラクシー",
+    "loading": "グループ内の関係を整理しています...",
+    "loadFailed": "関係ギャラクシーを読み込めませんでした",
+    "webglUnavailable": "この環境ではギャラクシーを表示できません",
+    "webglUnavailableDescription": "ハードウェアアクセラレーションを有効にするか、WebGL 対応環境で再試行してください。",
+    "emptyTitle": "交流データが不足しています",
+    "emptyDescription": "この期間には、2人以上の返信、メンション、または連続した発言が必要です。",
+    "resetView": "表示をリセット",
+    "closeDetail": "メンバー詳細を閉じる",
+    "messageCount": "グループ発言数",
+    "relationshipScore": "関係の強さ",
+    "lastInteraction": "最近の交流",
+    "signalComposition": "交流の内訳",
+    "replies": "返信",
+    "mentions": "メンション",
+    "proximity": "発言の近さ",
+    "strongConnections": "親しいつながり",
+    "connectionSignals": "返信 {replies} · メンション {mentions} · 近接 {proximity}",
+    "noConnections": "表示できる直接のつながりはありません"
+  },
   "relationship": {
     "empty": {
       "title": "関係データがありません",
diff --git a/src/i18n/locales/zh-CN/analysis.json b/src/i18n/locales/zh-CN/analysis.json
index f7b218e3..fd061066 100644
--- a/src/i18n/locales/zh-CN/analysis.json
+++ b/src/i18n/locales/zh-CN/analysis.json
@@ -82,7 +82,7 @@
       "catchphrase": "口头禅"
     },
     "groupRelationships": {
-      "mentionGraph": "{'@'} 关系图",
+      "relationshipGalaxy": "关系星空图",
       "mentionRanking": "{'@'} 排行",
       "proximity": "发言临近度"
     },
diff --git a/src/i18n/locales/zh-CN/views.json b/src/i18n/locales/zh-CN/views.json
index 0ca222e6..79e55eea 100644
--- a/src/i18n/locales/zh-CN/views.json
+++ b/src/i18n/locales/zh-CN/views.json
@@ -118,6 +118,27 @@
     "graphHint": "共 {nodes} 位成员，{links} 条互动关系",
     "noInteraction": "暂无艾特互动数据"
   },
+  "groupRelationshipGalaxy": {
+    "canvasLabel": "群聊互动关系星空图",
+    "loading": "正在整理群内关系...",
+    "loadFailed": "关系星空图加载失败",
+    "webglUnavailable": "当前环境无法显示星空图",
+    "webglUnavailableDescription": "请启用浏览器硬件加速，或更换支持 WebGL 的环境后重试。",
+    "emptyTitle": "暂无足够的互动关系",
+    "emptyDescription": "当前时间范围内至少需要两位成员产生回复、@ 或相邻发言。",
+    "resetView": "重置视角",
+    "closeDetail": "关闭成员详情",
+    "messageCount": "本群消息",
+    "relationshipScore": "关系强度",
+    "lastInteraction": "最近互动",
+    "signalComposition": "互动构成",
+    "replies": "回复",
+    "mentions": "@ 提及",
+    "proximity": "发言临近",
+    "strongConnections": "关系最密切",
+    "connectionSignals": "回复 {replies} · @ {mentions} · 临近 {proximity}",
+    "noConnections": "暂无可展示的直接关系"
+  },
   "relationship": {
     "empty": {
       "title": "暂无关系数据",
diff --git a/src/i18n/locales/zh-TW/analysis.json b/src/i18n/locales/zh-TW/analysis.json
index 4298d1bc..dbbbb21f 100644
--- a/src/i18n/locales/zh-TW/analysis.json
+++ b/src/i18n/locales/zh-TW/analysis.json
@@ -81,7 +81,7 @@
       "catchphrase": "口頭禪"
     },
     "groupRelationships": {
-      "mentionGraph": "{'@'} 關係圖",
+      "relationshipGalaxy": "關係星空圖",
       "mentionRanking": "{'@'} 排行",
       "proximity": "發言臨近度"
     },
diff --git a/src/i18n/locales/zh-TW/views.json b/src/i18n/locales/zh-TW/views.json
index 6e735ce4..fff2422a 100644
--- a/src/i18n/locales/zh-TW/views.json
+++ b/src/i18n/locales/zh-TW/views.json
@@ -118,6 +118,27 @@
     "graphHint": "共 {nodes} 位成員，{links} 條互動關係",
     "noInteraction": "暫無艾特互動資料"
   },
+  "groupRelationshipGalaxy": {
+    "canvasLabel": "群聊互動關係星空圖",
+    "loading": "正在整理群內關係...",
+    "loadFailed": "關係星空圖載入失敗",
+    "webglUnavailable": "目前環境無法顯示星空圖",
+    "webglUnavailableDescription": "請啟用瀏覽器硬體加速，或改用支援 WebGL 的環境後重試。",
+    "emptyTitle": "暫無足夠的互動關係",
+    "emptyDescription": "目前時間範圍內至少需要兩位成員產生回覆、@ 或相鄰發言。",
+    "resetView": "重設視角",
+    "closeDetail": "關閉成員詳情",
+    "messageCount": "本群訊息",
+    "relationshipScore": "關係強度",
+    "lastInteraction": "最近互動",
+    "signalComposition": "互動構成",
+    "replies": "回覆",
+    "mentions": "@ 提及",
+    "proximity": "發言臨近",
+    "strongConnections": "關係最密切",
+    "connectionSignals": "回覆 {replies} · @ {mentions} · 臨近 {proximity}",
+    "noConnections": "暫無可顯示的直接關係"
+  },
   "relationship": {
     "empty": {
       "title": "暫無關係資料",
diff --git a/src/pages/group-chat/components/insights/GroupRelationships.vue b/src/pages/group-chat/components/insights/GroupRelationships.vue
index 275e2da7..cd4edc05 100644
--- a/src/pages/group-chat/components/insights/GroupRelationships.vue
+++ b/src/pages/group-chat/components/insights/GroupRelationships.vue
@@ -1,12 +1,8 @@
 <script setup lang="ts">
-/**
- * 群关系 - 合并视图
- * 将 @ 关系图、@ 排行、发言临近度 三个分析整合到一个 Tab 中
- */
 import { ref, computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { SectionTabs } from '@/components/navigation'
-import InteractionView from '@/components/analysis/relationships/InteractionView.vue'
+import GroupRelationshipGalaxyView from '@/components/analysis/relationships/GroupRelationshipGalaxyView.vue'
 import MentionRankingView from '@/components/analysis/relationships/MentionRankingView.vue'
 import ClusterView from '@/components/analysis/relationships/ClusterView.vue'
 import type { TimeFilter } from '@openchatlab/shared-types'
@@ -18,13 +14,13 @@ const props = defineProps<{
   timeFilter?: TimeFilter
 }>()
 
-const activeSubTab = ref('mention-graph')
+const activeSubTab = ref('relationship-galaxy')
 
 const subTabs = computed(() => [
   {
-    id: 'mention-graph',
-    label: t('analysis.subTabs.groupRelationships.mentionGraph'),
-    icon: 'i-heroicons-arrows-right-left',
+    id: 'relationship-galaxy',
+    label: t('analysis.subTabs.groupRelationships.relationshipGalaxy'),
+    icon: 'i-lucide-orbit',
   },
   { id: 'mention-ranking', label: t('analysis.subTabs.groupRelationships.mentionRanking'), icon: 'i-heroicons-heart' },
   { id: 'proximity', label: t('analysis.subTabs.groupRelationships.proximity'), icon: 'i-heroicons-user-group' },
@@ -37,8 +33,8 @@ const subTabs = computed(() => [
 
     <div class="min-h-0 flex-1 overflow-y-auto">
       <Transition name="fade" mode="out-in">
-        <InteractionView
-          v-if="activeSubTab === 'mention-graph'"
+        <GroupRelationshipGalaxyView
+          v-if="activeSubTab === 'relationship-galaxy'"
           :session-id="props.sessionId"
           :time-filter="props.timeFilter"
         />