diff --git a/frontend/src/components/common/HelpTooltip.vue b/frontend/src/components/common/HelpTooltip.vue
new file mode 100644
index 00000000..7679ced4
--- /dev/null
+++ b/frontend/src/components/common/HelpTooltip.vue
@@ -0,0 +1,44 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+
+defineProps<{
+  content?: string
+}>()
+
+const show = ref(false)
+</script>
+
+<template>
+  <div
+    class="group relative ml-1 inline-flex items-center align-middle"
+    @mouseenter="show = true"
+    @mouseleave="show = false"
+  >
+    <!-- Trigger Icon -->
+    <slot name="trigger">
+      <svg
+        class="h-4 w-4 cursor-help text-gray-400 transition-colors hover:text-primary-600 dark:text-gray-500 dark:hover:text-primary-400"
+        fill="none"
+        viewBox="0 0 24 24"
+        stroke="currentColor"
+        stroke-width="2"
+      >
+        <path
+          stroke-linecap="round"
+          stroke-linejoin="round"
+          d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"
+        />
+      </svg>
+    </slot>
+
+    <!-- Popover Content -->
+    <div
+      v-show="show"
+      class="absolute bottom-full left-1/2 z-50 mb-2 w-64 -translate-x-1/2 rounded-lg bg-gray-900 p-3 text-xs leading-relaxed text-white shadow-xl ring-1 ring-white/10 opacity-0 transition-opacity duration-200 group-hover:opacity-100 dark:bg-gray-800"
+    >
+      <slot>{{ content }}</slot>
+      <div class="absolute -bottom-1 left-1/2 h-2 w-2 -translate-x-1/2 rotate-45 bg-gray-900 dark:bg-gray-800"></div>
+    </div>
+  </div>
+</template>
+
diff --git a/frontend/src/components/layout/AppSidebar.vue b/frontend/src/components/layout/AppSidebar.vue
index 791327a1..78217ec8 100644
--- a/frontend/src/components/layout/AppSidebar.vue
+++ b/frontend/src/components/layout/AppSidebar.vue
@@ -144,10 +144,10 @@
 </template>
 
 <script setup lang="ts">
-import { computed, h, ref } from 'vue'
+import { computed, h, onMounted, ref, watch } from 'vue'
 import { useRoute } from 'vue-router'
 import { useI18n } from 'vue-i18n'
-import { useAppStore, useAuthStore, useOnboardingStore } from '@/stores'
+import { useAdminSettingsStore, useAppStore, useAuthStore, useOnboardingStore } from '@/stores'
 import VersionBadge from '@/components/common/VersionBadge.vue'
 
 const { t } = useI18n()
@@ -156,6 +156,7 @@ const route = useRoute()
 const appStore = useAppStore()
 const authStore = useAuthStore()
 const onboardingStore = useOnboardingStore()
+const adminSettingsStore = useAdminSettingsStore()
 
 const sidebarCollapsed = computed(() => appStore.sidebarCollapsed)
 const mobileOpen = computed(() => appStore.mobileOpen)
@@ -442,6 +443,9 @@ const personalNavItems = computed(() => {
 const adminNavItems = computed(() => {
   const baseItems = [
     { path: '/admin/dashboard', label: t('nav.dashboard'), icon: DashboardIcon },
+    ...(adminSettingsStore.opsMonitoringEnabled
+      ? [{ path: '/admin/ops', label: t('nav.ops'), icon: ChartIcon }]
+      : []),
     { path: '/admin/users', label: t('nav.users'), icon: UsersIcon, hideInSimpleMode: true },
     { path: '/admin/groups', label: t('nav.groups'), icon: FolderIcon, hideInSimpleMode: true },
     { path: '/admin/subscriptions', label: t('nav.subscriptions'), icon: CreditCardIcon, hideInSimpleMode: true },
@@ -510,6 +514,23 @@ if (
   isDark.value = true
   document.documentElement.classList.add('dark')
 }
+
+// Fetch admin settings (for feature-gated nav items like Ops).
+watch(
+  isAdmin,
+  (v) => {
+    if (v) {
+      adminSettingsStore.fetch()
+    }
+  },
+  { immediate: true }
+)
+
+onMounted(() => {
+  if (isAdmin.value) {
+    adminSettingsStore.fetch()
+  }
+})
 </script>
 
 <style scoped>
diff --git a/frontend/src/views/admin/SettingsView.vue b/frontend/src/views/admin/SettingsView.vue
index 11a7c290..4375a6cc 100644
--- a/frontend/src/views/admin/SettingsView.vue
+++ b/frontend/src/views/admin/SettingsView.vue
@@ -665,6 +665,59 @@
           </div>
         </div>
 
+        <!-- Ops Monitoring -->
+        <div class="card">
+          <div class="border-b border-gray-100 px-6 py-4 dark:border-dark-700">
+            <h2 class="text-lg font-semibold text-gray-900 dark:text-white">
+              {{ t('admin.settings.opsMonitoring.title') }}
+            </h2>
+            <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
+              {{ t('admin.settings.opsMonitoring.description') }}
+            </p>
+          </div>
+          <div class="p-6">
+            <div class="flex items-center justify-between">
+              <div>
+                <label class="font-medium text-gray-900 dark:text-white">{{
+                  t('admin.settings.opsMonitoring.enabled')
+                }}</label>
+                <p class="text-sm text-gray-500 dark:text-gray-400">
+                  {{ t('admin.settings.opsMonitoring.enabledHint') }}
+                </p>
+              </div>
+              <Toggle v-model="form.ops_monitoring_enabled" />
+            </div>
+
+            <div v-if="form.ops_monitoring_enabled" class="mt-5 flex items-center justify-between">
+              <div>
+                <label class="font-medium text-gray-900 dark:text-white">{{
+                  t('admin.settings.opsMonitoring.realtimeEnabled')
+                }}</label>
+                <p class="text-sm text-gray-500 dark:text-gray-400">
+                  {{ t('admin.settings.opsMonitoring.realtimeEnabledHint') }}
+                </p>
+              </div>
+              <Toggle v-model="form.ops_realtime_monitoring_enabled" />
+            </div>
+
+            <div v-if="form.ops_monitoring_enabled" class="mt-5 flex items-center justify-between">
+              <div>
+                <label class="font-medium text-gray-900 dark:text-white">{{
+                  t('admin.settings.opsMonitoring.queryMode')
+                }}</label>
+                <p class="text-sm text-gray-500 dark:text-gray-400">
+                  {{ t('admin.settings.opsMonitoring.queryModeHint') }}
+                </p>
+              </div>
+              <Select
+                v-model="form.ops_query_mode_default"
+                :options="opsQueryModeOptions"
+                class="w-[220px]"
+              />
+            </div>
+          </div>
+        </div>
+
         <!-- Save Button -->
         <div class="flex justify-end">
           <button type="submit" :disabled="saving" class="btn btn-primary">
@@ -687,22 +740,34 @@
           </button>
         </div>
       </form>
+
+      <!-- Ops settings and management (only show when enabled) -->
+      <div v-if="showOpsSettings" class="space-y-6">
+        <OpsRuntimeSettingsCard />
+        <OpsEmailNotificationCard />
+        <OpsAlertRulesCard />
+      </div>
     </div>
   </AppLayout>
 </template>
 
 <script setup lang="ts">
-import { ref, reactive, onMounted } from 'vue'
+import { ref, reactive, onMounted, computed } from 'vue'
 import { useI18n } from 'vue-i18n'
 import { adminAPI } from '@/api'
 import type { SystemSettings, UpdateSettingsRequest } from '@/api/admin/settings'
 import AppLayout from '@/components/layout/AppLayout.vue'
 import Icon from '@/components/icons/Icon.vue'
 import Toggle from '@/components/common/Toggle.vue'
-import { useAppStore } from '@/stores'
+import Select from '@/components/common/Select.vue'
+import { useAdminSettingsStore, useAppStore } from '@/stores'
+import OpsAlertRulesCard from '@/views/admin/ops/components/OpsAlertRulesCard.vue'
+import OpsEmailNotificationCard from '@/views/admin/ops/components/OpsEmailNotificationCard.vue'
+import OpsRuntimeSettingsCard from '@/views/admin/ops/components/OpsRuntimeSettingsCard.vue'
 
 const { t } = useI18n()
 const appStore = useAppStore()
+const adminSettingsStore = useAdminSettingsStore()
 
 const loading = ref(true)
 const saving = ref(false)
@@ -747,11 +812,29 @@ const form = reactive<SettingsForm>({
   turnstile_site_key: '',
   turnstile_secret_key: '',
   turnstile_secret_key_configured: false,
+  // Model fallback
+  enable_model_fallback: false,
+  fallback_model_anthropic: 'claude-3-5-sonnet-20241022',
+  fallback_model_openai: 'gpt-4o',
+  fallback_model_gemini: 'gemini-2.5-pro',
+  fallback_model_antigravity: 'gemini-2.5-pro',
   // Identity patch (Claude -> Gemini)
   enable_identity_patch: true,
-  identity_patch_prompt: ''
+  identity_patch_prompt: '',
+  // Ops Monitoring (vNext)
+  ops_monitoring_enabled: true,
+  ops_realtime_monitoring_enabled: true,
+  ops_query_mode_default: 'auto'
 })
 
+const opsQueryModeOptions = computed(() => [
+  { value: 'auto', label: t('admin.settings.opsMonitoring.queryModeAuto') },
+  { value: 'raw', label: t('admin.settings.opsMonitoring.queryModeRaw') },
+  { value: 'preagg', label: t('admin.settings.opsMonitoring.queryModePreagg') }
+])
+
+const showOpsSettings = computed(() => !!form.ops_monitoring_enabled)
+
 function handleLogoUpload(event: Event) {
   const input = event.target as HTMLInputElement
   const file = input.files?.[0]
@@ -829,12 +912,25 @@ async function saveSettings() {
       smtp_use_tls: form.smtp_use_tls,
       turnstile_enabled: form.turnstile_enabled,
       turnstile_site_key: form.turnstile_site_key,
-      turnstile_secret_key: form.turnstile_secret_key || undefined
+      turnstile_secret_key: form.turnstile_secret_key || undefined,
+      enable_model_fallback: form.enable_model_fallback,
+      fallback_model_anthropic: form.fallback_model_anthropic,
+      fallback_model_openai: form.fallback_model_openai,
+      fallback_model_gemini: form.fallback_model_gemini,
+      fallback_model_antigravity: form.fallback_model_antigravity,
+      enable_identity_patch: form.enable_identity_patch,
+      identity_patch_prompt: form.identity_patch_prompt,
+      ops_monitoring_enabled: form.ops_monitoring_enabled,
+      ops_realtime_monitoring_enabled: form.ops_realtime_monitoring_enabled,
+      ops_query_mode_default: form.ops_query_mode_default
     }
     const updated = await adminAPI.settings.updateSettings(payload)
     Object.assign(form, updated)
     form.smtp_password = ''
     form.turnstile_secret_key = ''
+    adminSettingsStore.setOpsMonitoringEnabledLocal(!!updated.ops_monitoring_enabled)
+    adminSettingsStore.setOpsRealtimeMonitoringEnabledLocal(!!updated.ops_realtime_monitoring_enabled)
+    adminSettingsStore.setOpsQueryModeDefaultLocal(updated.ops_query_mode_default || 'auto')
     // Refresh cached public settings so sidebar/header update immediately
     await appStore.fetchPublicSettings(true)
     appStore.showSuccess(t('admin.settings.settingsSaved'))
diff --git a/frontend/src/views/admin/ops/OpsDashboard.vue b/frontend/src/views/admin/ops/OpsDashboard.vue
new file mode 100644
index 00000000..56add66f
--- /dev/null
+++ b/frontend/src/views/admin/ops/OpsDashboard.vue
@@ -0,0 +1,854 @@
+<template>
+  <AppLayout>
+    <div class="space-y-6 pb-12">
+      <div
+        v-if="errorMessage"
+        class="rounded-2xl bg-red-50 p-4 text-sm text-red-600 dark:bg-red-900/20 dark:text-red-400"
+      >
+        {{ errorMessage }}
+      </div>
+
+      <OpsDashboardSkeleton v-if="loading && !hasLoadedOnce" />
+
+      <OpsDashboardHeader
+        v-else-if="opsEnabled"
+        :overview="overview"
+        :ws-status="wsStatus"
+        :ws-reconnect-in-ms="wsReconnectInMs"
+        :ws-has-data="wsHasData"
+        :real-time-qps="realTimeQPS"
+        :real-time-tps="realTimeTPS"
+        :platform="platform"
+        :group-id="groupId"
+        :time-range="timeRange"
+        :query-mode="queryMode"
+        :loading="loading"
+        :last-updated="lastUpdated"
+        @update:time-range="onTimeRangeChange"
+        @update:platform="onPlatformChange"
+        @update:group="onGroupChange"
+        @update:query-mode="onQueryModeChange"
+        @refresh="fetchData"
+        @open-request-details="handleOpenRequestDetails"
+        @open-error-details="openErrorDetails"
+      />
+
+      <!-- Overview -->
+      <div
+        v-if="opsEnabled && !(loading && !hasLoadedOnce)"
+        class="overflow-hidden rounded-3xl bg-white shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700"
+      >
+        <div class="border-b border-gray-100 px-6 py-4 dark:border-dark-700">
+          <h3 class="text-base font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.systemHealth') }}</h3>
+        </div>
+        <div class="p-6">
+          <div v-if="loadingOverview" class="flex items-center justify-center py-10">
+            <div class="h-8 w-8 animate-spin rounded-full border-b-2 border-primary-600"></div>
+          </div>
+
+          <div v-else-if="!overview?.system_metrics" class="py-6 text-sm text-gray-500 dark:text-gray-400">
+            {{ t('admin.ops.noSystemMetrics') }}
+          </div>
+
+          <div v-else class="space-y-6">
+            <div class="text-xs text-gray-500 dark:text-gray-400">
+              {{ t('admin.ops.collectedAt') }} {{ formatDateTime(overview.system_metrics.created_at) }} ({{ t('admin.ops.window') }}
+              {{ overview.system_metrics.window_minutes }}m)
+            </div>
+
+            <div class="grid grid-cols-1 gap-4 md:grid-cols-5">
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.cpu') }}</div>
+                <div class="mt-1 text-xl font-semibold text-gray-900 dark:text-white">
+                  {{ formatPercent0to100(overview.system_metrics.cpu_usage_percent) }}
+                </div>
+              </div>
+
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.memory') }}</div>
+                <div class="mt-1 text-xl font-semibold text-gray-900 dark:text-white">
+                  {{ formatPercent0to100(overview.system_metrics.memory_usage_percent) }}
+                </div>
+                <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                  {{ formatMBPair(overview.system_metrics.memory_used_mb, overview.system_metrics.memory_total_mb) }}
+                </div>
+              </div>
+
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.db') }}</div>
+                <div class="mt-1 text-xl font-semibold" :class="boolOkClass(overview.system_metrics.db_ok)">
+                  {{ boolOkLabel(overview.system_metrics.db_ok) }}
+                </div>
+                <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                  {{ t('admin.ops.active') }}: {{ overview.system_metrics.db_conn_active ?? '-' }}, {{ t('admin.ops.idle') }}:
+                  {{ overview.system_metrics.db_conn_idle ?? '-' }}
+                </div>
+              </div>
+
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.redis') }}</div>
+                <div class="mt-1 text-xl font-semibold" :class="boolOkClass(overview.system_metrics.redis_ok)">
+                  {{ boolOkLabel(overview.system_metrics.redis_ok) }}
+                </div>
+              </div>
+
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.goroutines') }}</div>
+                <div class="mt-1 text-xl font-semibold text-gray-900 dark:text-white">
+                  {{ overview.system_metrics.goroutine_count ?? '-' }}
+                </div>
+              </div>
+            </div>
+
+            <div v-if="overview?.job_heartbeats?.length" class="rounded-xl border border-gray-100 dark:border-dark-700">
+              <div class="border-b border-gray-100 px-4 py-3 text-sm font-semibold text-gray-900 dark:border-dark-700 dark:text-white">
+                {{ t('admin.ops.jobs') }}
+              </div>
+              <div class="divide-y divide-gray-100 dark:divide-dark-700">
+                <div
+                  v-for="job in overview.job_heartbeats"
+                  :key="job.job_name"
+                  class="flex flex-col gap-1 px-4 py-3 md:flex-row md:items-center md:justify-between"
+                >
+                  <div class="text-sm font-medium text-gray-900 dark:text-white">
+                    {{ job.job_name }}
+                  </div>
+                  <div class="text-xs text-gray-500 dark:text-gray-400">
+                    {{ t('admin.ops.lastRun') }}: {{ job.last_run_at ? formatDateTime(job.last_run_at) : '-' }} · {{ t('admin.ops.lastSuccess') }}:
+                    {{ job.last_success_at ? formatDateTime(job.last_success_at) : '-' }} ·
+                    <span v-if="job.last_error" class="text-rose-600 dark:text-rose-400">
+                      {{ t('admin.ops.lastError') }}: {{ job.last_error }}
+                    </span>
+                    <span v-else class="text-emerald-600 dark:text-emerald-400">{{ t('admin.ops.ok') }}</span>
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <div v-if="opsEnabled && !(loading && !hasLoadedOnce)" class="card">
+        <div class="border-b border-gray-100 px-6 py-4 dark:border-dark-700">
+          <h3 class="text-base font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.overview') }}</h3>
+        </div>
+        <div class="p-6">
+          <div v-if="loadingOverview" class="flex items-center justify-center py-10">
+            <div class="h-8 w-8 animate-spin rounded-full border-b-2 border-primary-600"></div>
+          </div>
+
+          <div v-else-if="!overview" class="py-6 text-sm text-gray-500 dark:text-gray-400">
+            {{ t('admin.ops.noData') }}
+          </div>
+
+          <div v-else class="space-y-6">
+            <div class="grid grid-cols-1 gap-4 md:grid-cols-4">
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.requestsTotal') }}</div>
+                <div class="mt-1 text-xl font-semibold text-gray-900 dark:text-white">
+                  {{ formatInt(overview.request_count_total) }}
+                </div>
+                <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                  {{ t('admin.ops.slaScope') }} {{ formatInt(overview.request_count_sla) }}
+                </div>
+              </div>
+
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.tokens') }}</div>
+                <div class="mt-1 text-xl font-semibold text-gray-900 dark:text-white">
+                  {{ formatInt(overview.token_consumed) }}
+                </div>
+                <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                  {{ t('admin.ops.tps') }} {{ overview.tps.current }} ({{ t('admin.ops.peak') }} {{ overview.tps.peak }})
+                </div>
+              </div>
+
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.sla') }}</div>
+                <div class="mt-1 text-xl font-semibold text-gray-900 dark:text-white">
+                  {{ formatPercent(overview.sla) }}
+                </div>
+                <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                  {{ t('admin.ops.businessLimited') }}: {{ formatInt(overview.business_limited_count) }}
+                </div>
+              </div>
+
+              <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-800/50">
+                <div class="text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.errors') }}</div>
+                <div class="mt-1 text-xs text-gray-600 dark:text-gray-300">
+                  {{ t('admin.ops.errorRate') }}: <span class="font-semibold">{{ formatPercent(overview.error_rate) }}</span>
+                </div>
+                <div class="mt-1 text-xs text-gray-600 dark:text-gray-300">
+                  {{ t('admin.ops.upstreamRate') }}: <span class="font-semibold">{{ formatPercent(overview.upstream_error_rate) }}</span>
+                </div>
+                <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+                  429: {{ formatInt(overview.upstream_429_count) }} · 529:
+                  {{ formatInt(overview.upstream_529_count) }}
+                </div>
+              </div>
+            </div>
+
+            <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
+              <div class="rounded-xl border border-gray-200 bg-white p-4 dark:border-dark-700 dark:bg-dark-900">
+                <div class="text-sm font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.latencyDuration') }}</div>
+                <div class="mt-3 grid grid-cols-2 gap-2 text-xs text-gray-600 dark:text-gray-300 md:grid-cols-3">
+                  <div>{{ t('admin.ops.p50') }}: <span class="font-mono">{{ formatMs(overview.duration.p50_ms) }}</span></div>
+                  <div>{{ t('admin.ops.p90') }}: <span class="font-mono">{{ formatMs(overview.duration.p90_ms) }}</span></div>
+                  <div>{{ t('admin.ops.p95') }}: <span class="font-mono">{{ formatMs(overview.duration.p95_ms) }}</span></div>
+                  <div>{{ t('admin.ops.p99') }}: <span class="font-mono">{{ formatMs(overview.duration.p99_ms) }}</span></div>
+                  <div>{{ t('admin.ops.avg') }}: <span class="font-mono">{{ formatMs(overview.duration.avg_ms) }}</span></div>
+                  <div>{{ t('admin.ops.max') }}: <span class="font-mono">{{ formatMs(overview.duration.max_ms) }}</span></div>
+                </div>
+              </div>
+
+              <div class="rounded-xl border border-gray-200 bg-white p-4 dark:border-dark-700 dark:bg-dark-900">
+                <div class="text-sm font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.ttftLabel') }}</div>
+                <div class="mt-3 grid grid-cols-2 gap-2 text-xs text-gray-600 dark:text-gray-300 md:grid-cols-3">
+                  <div>{{ t('admin.ops.p50') }}: <span class="font-mono">{{ formatMs(overview.ttft.p50_ms) }}</span></div>
+                  <div>{{ t('admin.ops.p90') }}: <span class="font-mono">{{ formatMs(overview.ttft.p90_ms) }}</span></div>
+                  <div>{{ t('admin.ops.p95') }}: <span class="font-mono">{{ formatMs(overview.ttft.p95_ms) }}</span></div>
+                  <div>{{ t('admin.ops.p99') }}: <span class="font-mono">{{ formatMs(overview.ttft.p99_ms) }}</span></div>
+                  <div>{{ t('admin.ops.avg') }}: <span class="font-mono">{{ formatMs(overview.ttft.avg_ms) }}</span></div>
+                  <div>{{ t('admin.ops.max') }}: <span class="font-mono">{{ formatMs(overview.ttft.max_ms) }}</span></div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- Row: Concurrency + Throughput -->
+      <div v-if="opsEnabled && !(loading && !hasLoadedOnce)" class="grid grid-cols-1 gap-6 lg:grid-cols-3">
+        <div class="lg:col-span-1 min-h-[360px]">
+          <OpsConcurrencyCard :platform-filter="platform" :group-id-filter="groupId" />
+        </div>
+        <div class="lg:col-span-2 min-h-[360px]">
+          <OpsThroughputTrendChart
+            :points="throughputTrend?.points ?? []"
+            :by-platform="throughputTrend?.by_platform ?? []"
+            :top-groups="throughputTrend?.top_groups ?? []"
+            :loading="loadingTrend"
+            :time-range="timeRange"
+            @select-platform="handleThroughputSelectPlatform"
+            @select-group="handleThroughputSelectGroup"
+            @open-details="handleOpenRequestDetails"
+          />
+        </div>
+      </div>
+
+      <!-- Row: Visual Analysis (baseline 3-up grid) -->
+      <div v-if="opsEnabled && !(loading && !hasLoadedOnce)" class="grid grid-cols-1 gap-6 md:grid-cols-3">
+        <OpsLatencyChart :latency-data="latencyHistogram" :loading="loadingLatency" />
+        <OpsErrorDistributionChart
+          :data="errorDistribution"
+          :loading="loadingErrorDistribution"
+          @open-details="openErrorDetails('request')"
+        />
+        <OpsErrorTrendChart
+          :points="errorTrend?.points ?? []"
+          :loading="loadingErrorTrend"
+          :time-range="timeRange"
+          @open-request-errors="openErrorDetails('request')"
+          @open-upstream-errors="openErrorDetails('upstream')"
+        />
+      </div>
+
+      <!-- Alert Events -->
+      <OpsAlertEventsCard v-if="opsEnabled && !(loading && !hasLoadedOnce)" />
+
+      <OpsErrorDetailsModal
+        :show="showErrorDetails"
+        :time-range="timeRange"
+        :platform="platform"
+        :group-id="groupId"
+        :error-type="errorDetailsType"
+        @update:show="showErrorDetails = $event"
+        @openErrorDetail="openError"
+      />
+
+      <OpsErrorDetailModal v-model:show="showErrorModal" :error-id="selectedErrorId" />
+
+      <OpsRequestDetailsModal
+        v-model="showRequestDetails"
+        :time-range="timeRange"
+        :preset="requestDetailsPreset"
+        :platform="platform"
+        :group-id="groupId"
+        @openErrorDetail="openError"
+      />
+    </div>
+  </AppLayout>
+</template>
+
+<script setup lang="ts">
+import { computed, onMounted, onUnmounted, ref, watch } from 'vue'
+import { useDebounceFn } from '@vueuse/core'
+import { useI18n } from 'vue-i18n'
+import { useRoute, useRouter } from 'vue-router'
+import AppLayout from '@/components/layout/AppLayout.vue'
+import {
+  opsAPI,
+  OPS_WS_CLOSE_CODES,
+  type OpsWSStatus,
+  type OpsDashboardOverview,
+  type OpsErrorDistributionResponse,
+  type OpsErrorTrendResponse,
+  type OpsLatencyHistogramResponse,
+  type OpsThroughputTrendResponse
+} from '@/api/admin/ops'
+import { useAdminSettingsStore, useAppStore } from '@/stores'
+import OpsDashboardHeader from './components/OpsDashboardHeader.vue'
+import OpsDashboardSkeleton from './components/OpsDashboardSkeleton.vue'
+import OpsConcurrencyCard from './components/OpsConcurrencyCard.vue'
+import OpsErrorDetailModal from './components/OpsErrorDetailModal.vue'
+import OpsErrorDistributionChart from './components/OpsErrorDistributionChart.vue'
+import OpsErrorDetailsModal from './components/OpsErrorDetailsModal.vue'
+import OpsErrorTrendChart from './components/OpsErrorTrendChart.vue'
+import OpsLatencyChart from './components/OpsLatencyChart.vue'
+import OpsThroughputTrendChart from './components/OpsThroughputTrendChart.vue'
+import OpsAlertEventsCard from './components/OpsAlertEventsCard.vue'
+import OpsRequestDetailsModal, { type OpsRequestDetailsPreset } from './components/OpsRequestDetailsModal.vue'
+import { formatDateTime, formatNumberLocaleString } from '@/utils/format'
+
+const route = useRoute()
+const router = useRouter()
+const appStore = useAppStore()
+const adminSettingsStore = useAdminSettingsStore()
+const { t } = useI18n()
+
+const opsEnabled = computed(() => adminSettingsStore.opsMonitoringEnabled)
+
+type TimeRange = '5m' | '30m' | '1h' | '6h' | '24h'
+const allowedTimeRanges = new Set<TimeRange>(['5m', '30m', '1h', '6h', '24h'])
+
+type QueryMode = 'auto' | 'raw' | 'preagg'
+const allowedQueryModes = new Set<QueryMode>(['auto', 'raw', 'preagg'])
+
+const loading = ref(true)
+const hasLoadedOnce = ref(false)
+const errorMessage = ref('')
+const lastUpdated = ref<Date | null>(new Date())
+
+const timeRange = ref<TimeRange>('1h')
+const platform = ref<string>('')
+const groupId = ref<number | null>(null)
+const queryMode = ref<QueryMode>('auto')
+
+const QUERY_KEYS = {
+  timeRange: 'tr',
+  platform: 'platform',
+  groupId: 'group_id',
+  queryMode: 'mode'
+} as const
+
+const isApplyingRouteQuery = ref(false)
+const isSyncingRouteQuery = ref(false)
+
+// WebSocket for realtime QPS/TPS
+const realTimeQPS = ref(0)
+const realTimeTPS = ref(0)
+const wsStatus = ref<OpsWSStatus>('closed')
+const wsReconnectInMs = ref<number | null>(null)
+const wsHasData = ref(false)
+let unsubscribeQPS: (() => void) | null = null
+
+let dashboardFetchController: AbortController | null = null
+let dashboardFetchSeq = 0
+
+function isCanceledRequest(err: unknown): boolean {
+  return (
+    !!err &&
+    typeof err === 'object' &&
+    'code' in err &&
+    (err as Record<string, unknown>).code === 'ERR_CANCELED'
+  )
+}
+
+function abortDashboardFetch() {
+  if (dashboardFetchController) {
+    dashboardFetchController.abort()
+    dashboardFetchController = null
+  }
+}
+
+function stopQPSSubscription(options?: { resetMetrics?: boolean }) {
+  wsStatus.value = 'closed'
+  wsReconnectInMs.value = null
+  if (unsubscribeQPS) unsubscribeQPS()
+  unsubscribeQPS = null
+
+  if (options?.resetMetrics) {
+    realTimeQPS.value = 0
+    realTimeTPS.value = 0
+    wsHasData.value = false
+  }
+}
+
+function startQPSSubscription() {
+  stopQPSSubscription()
+  unsubscribeQPS = opsAPI.subscribeQPS(
+    (payload) => {
+      if (payload && typeof payload === 'object' && payload.type === 'qps_update' && payload.data) {
+        realTimeQPS.value = payload.data.qps || 0
+        realTimeTPS.value = payload.data.tps || 0
+        wsHasData.value = true
+      }
+    },
+    {
+      onStatusChange: (status) => {
+        wsStatus.value = status
+        if (status === 'connected') wsReconnectInMs.value = null
+      },
+      onReconnectScheduled: ({ delayMs }) => {
+        wsReconnectInMs.value = delayMs
+      },
+      onFatalClose: (event) => {
+        // Server-side feature flag says realtime is disabled; keep UI consistent and avoid reconnect loops.
+        if (event && event.code === OPS_WS_CLOSE_CODES.REALTIME_DISABLED) {
+          adminSettingsStore.setOpsRealtimeMonitoringEnabledLocal(false)
+          stopQPSSubscription({ resetMetrics: true })
+        }
+      },
+      // QPS updates may be sparse in idle periods; keep the timeout conservative.
+      staleTimeoutMs: 180_000
+    }
+  )
+}
+
+const readQueryString = (key: string): string => {
+  const value = route.query[key]
+  if (typeof value === 'string') return value
+  if (Array.isArray(value) && typeof value[0] === 'string') return value[0]
+  return ''
+}
+
+const readQueryNumber = (key: string): number | null => {
+  const raw = readQueryString(key)
+  if (!raw) return null
+  const n = Number.parseInt(raw, 10)
+  return Number.isFinite(n) ? n : null
+}
+
+const applyRouteQueryToState = () => {
+  const nextTimeRange = readQueryString(QUERY_KEYS.timeRange)
+  if (nextTimeRange && allowedTimeRanges.has(nextTimeRange as TimeRange)) {
+    timeRange.value = nextTimeRange as TimeRange
+  }
+
+  platform.value = readQueryString(QUERY_KEYS.platform) || ''
+
+  const groupIdRaw = readQueryNumber(QUERY_KEYS.groupId)
+  groupId.value = typeof groupIdRaw === 'number' && groupIdRaw > 0 ? groupIdRaw : null
+
+  const nextMode = readQueryString(QUERY_KEYS.queryMode)
+  if (nextMode && allowedQueryModes.has(nextMode as QueryMode)) {
+    queryMode.value = nextMode as QueryMode
+  } else {
+    const fallback = adminSettingsStore.opsQueryModeDefault || 'auto'
+    queryMode.value = allowedQueryModes.has(fallback as QueryMode) ? (fallback as QueryMode) : 'auto'
+  }
+}
+
+applyRouteQueryToState()
+
+const buildQueryFromState = () => {
+  const next: Record<string, any> = { ...route.query }
+
+  Object.values(QUERY_KEYS).forEach((k) => {
+    delete next[k]
+  })
+
+  if (timeRange.value !== '1h') next[QUERY_KEYS.timeRange] = timeRange.value
+  if (platform.value) next[QUERY_KEYS.platform] = platform.value
+  if (typeof groupId.value === 'number' && groupId.value > 0) next[QUERY_KEYS.groupId] = String(groupId.value)
+  if (queryMode.value !== 'auto') next[QUERY_KEYS.queryMode] = queryMode.value
+
+  return next
+}
+
+const syncQueryToRoute = useDebounceFn(async () => {
+  if (isApplyingRouteQuery.value) return
+  const nextQuery = buildQueryFromState()
+
+  const curr = route.query as Record<string, any>
+  const nextKeys = Object.keys(nextQuery)
+  const currKeys = Object.keys(curr)
+  const sameLength = nextKeys.length === currKeys.length
+  const sameValues = sameLength && nextKeys.every((k) => String(curr[k] ?? '') === String(nextQuery[k] ?? ''))
+  if (sameValues) return
+
+  try {
+    isSyncingRouteQuery.value = true
+    await router.replace({ query: nextQuery })
+  } finally {
+    isSyncingRouteQuery.value = false
+  }
+}, 250)
+
+const overview = ref<OpsDashboardOverview | null>(null)
+const loadingOverview = ref(false)
+
+const throughputTrend = ref<OpsThroughputTrendResponse | null>(null)
+const loadingTrend = ref(false)
+
+const latencyHistogram = ref<OpsLatencyHistogramResponse | null>(null)
+const loadingLatency = ref(false)
+
+const errorTrend = ref<OpsErrorTrendResponse | null>(null)
+const loadingErrorTrend = ref(false)
+
+const errorDistribution = ref<OpsErrorDistributionResponse | null>(null)
+const loadingErrorDistribution = ref(false)
+
+const selectedErrorId = ref<number | null>(null)
+const showErrorModal = ref(false)
+
+const showErrorDetails = ref(false)
+const errorDetailsType = ref<'request' | 'upstream'>('request')
+
+const showRequestDetails = ref(false)
+const requestDetailsPreset = ref<OpsRequestDetailsPreset>({
+  title: '',
+  kind: 'all',
+  sort: 'created_at_desc'
+})
+
+function handleThroughputSelectPlatform(nextPlatform: string) {
+  platform.value = nextPlatform || ''
+  groupId.value = null
+}
+
+function handleThroughputSelectGroup(nextGroupId: number) {
+  const id = Number.isFinite(nextGroupId) && nextGroupId > 0 ? nextGroupId : null
+  groupId.value = id
+}
+
+function handleOpenRequestDetails() {
+  requestDetailsPreset.value = {
+    title: t('admin.ops.requestDetails.title'),
+    kind: 'all',
+    sort: 'created_at_desc'
+  }
+  showRequestDetails.value = true
+}
+
+function openErrorDetails(kind: 'request' | 'upstream') {
+  errorDetailsType.value = kind
+  showErrorDetails.value = true
+}
+
+function onTimeRangeChange(v: string | number | boolean | null) {
+  if (typeof v !== 'string') return
+  if (!allowedTimeRanges.has(v as TimeRange)) return
+  timeRange.value = v as TimeRange
+}
+
+function onPlatformChange(v: string | number | boolean | null) {
+  platform.value = typeof v === 'string' ? v : ''
+}
+
+function onGroupChange(v: string | number | boolean | null) {
+  if (v === null) {
+    groupId.value = null
+    return
+  }
+  if (typeof v === 'number') {
+    groupId.value = v > 0 ? v : null
+    return
+  }
+  if (typeof v === 'string') {
+    const n = Number.parseInt(v, 10)
+    groupId.value = Number.isFinite(n) && n > 0 ? n : null
+  }
+}
+
+function onQueryModeChange(v: string | number | boolean | null) {
+  if (typeof v !== 'string') return
+  if (!allowedQueryModes.has(v as QueryMode)) return
+  queryMode.value = v as QueryMode
+}
+
+function openError(id: number) {
+  selectedErrorId.value = id
+  showErrorModal.value = true
+}
+
+function formatInt(v: number | null | undefined): string {
+  if (typeof v !== 'number') return '0'
+  return formatNumberLocaleString(v)
+}
+
+function formatPercent(v: number | null | undefined): string {
+  if (typeof v !== 'number') return '-'
+  return `${(v * 100).toFixed(2)}%`
+}
+
+function formatPercent0to100(v: number | null | undefined): string {
+  if (typeof v !== 'number') return '-'
+  return `${v.toFixed(1)}%`
+}
+
+function formatMBPair(used: number | null | undefined, total: number | null | undefined): string {
+  if (typeof used !== 'number' || typeof total !== 'number') return '-'
+  return `${formatNumberLocaleString(used)} / ${formatNumberLocaleString(total)} MB`
+}
+
+function boolOkLabel(v: boolean | null | undefined): string {
+  if (v === true) return 'OK'
+  if (v === false) return 'FAIL'
+  return '-'
+}
+
+function boolOkClass(v: boolean | null | undefined): string {
+  if (v === true) return 'text-emerald-600 dark:text-emerald-400'
+  if (v === false) return 'text-rose-600 dark:text-rose-400'
+  return 'text-gray-900 dark:text-white'
+}
+
+function formatMs(v: number | null | undefined): string {
+  if (v == null) return '-'
+  return `${v}ms`
+}
+
+async function refreshOverviewWithCancel(fetchSeq: number, signal: AbortSignal) {
+  if (!opsEnabled.value) return
+  loadingOverview.value = true
+  try {
+    const data = await opsAPI.getDashboardOverview(
+      {
+        time_range: timeRange.value,
+        platform: platform.value || undefined,
+        group_id: groupId.value ?? undefined,
+        mode: queryMode.value
+      },
+      { signal }
+    )
+    if (fetchSeq !== dashboardFetchSeq) return
+    overview.value = data
+  } catch (err: any) {
+    if (fetchSeq !== dashboardFetchSeq || isCanceledRequest(err)) return
+    overview.value = null
+    appStore.showError(err?.message || 'Failed to load overview')
+  } finally {
+    if (fetchSeq === dashboardFetchSeq) {
+      loadingOverview.value = false
+    }
+  }
+}
+
+async function refreshThroughputTrendWithCancel(fetchSeq: number, signal: AbortSignal) {
+  if (!opsEnabled.value) return
+  loadingTrend.value = true
+  try {
+    const data = await opsAPI.getThroughputTrend(
+      {
+        time_range: timeRange.value,
+        platform: platform.value || undefined,
+        group_id: groupId.value ?? undefined,
+        mode: queryMode.value
+      },
+      { signal }
+    )
+    if (fetchSeq !== dashboardFetchSeq) return
+    throughputTrend.value = data
+  } catch (err: any) {
+    if (fetchSeq !== dashboardFetchSeq || isCanceledRequest(err)) return
+    throughputTrend.value = null
+    appStore.showError(err?.message || 'Failed to load throughput trend')
+  } finally {
+    if (fetchSeq === dashboardFetchSeq) {
+      loadingTrend.value = false
+    }
+  }
+}
+
+async function refreshLatencyHistogramWithCancel(fetchSeq: number, signal: AbortSignal) {
+  if (!opsEnabled.value) return
+  loadingLatency.value = true
+  try {
+    const data = await opsAPI.getLatencyHistogram(
+      {
+        time_range: timeRange.value,
+        platform: platform.value || undefined,
+        group_id: groupId.value ?? undefined,
+        mode: queryMode.value
+      },
+      { signal }
+    )
+    if (fetchSeq !== dashboardFetchSeq) return
+    latencyHistogram.value = data
+  } catch (err: any) {
+    if (fetchSeq !== dashboardFetchSeq || isCanceledRequest(err)) return
+    latencyHistogram.value = null
+    appStore.showError(err?.message || 'Failed to load latency histogram')
+  } finally {
+    if (fetchSeq === dashboardFetchSeq) {
+      loadingLatency.value = false
+    }
+  }
+}
+
+async function refreshErrorTrendWithCancel(fetchSeq: number, signal: AbortSignal) {
+  if (!opsEnabled.value) return
+  loadingErrorTrend.value = true
+  try {
+    const data = await opsAPI.getErrorTrend(
+      {
+        time_range: timeRange.value,
+        platform: platform.value || undefined,
+        group_id: groupId.value ?? undefined,
+        mode: queryMode.value
+      },
+      { signal }
+    )
+    if (fetchSeq !== dashboardFetchSeq) return
+    errorTrend.value = data
+  } catch (err: any) {
+    if (fetchSeq !== dashboardFetchSeq || isCanceledRequest(err)) return
+    errorTrend.value = null
+    appStore.showError(err?.message || 'Failed to load error trend')
+  } finally {
+    if (fetchSeq === dashboardFetchSeq) {
+      loadingErrorTrend.value = false
+    }
+  }
+}
+
+async function refreshErrorDistributionWithCancel(fetchSeq: number, signal: AbortSignal) {
+  if (!opsEnabled.value) return
+  loadingErrorDistribution.value = true
+  try {
+    const data = await opsAPI.getErrorDistribution(
+      {
+        time_range: timeRange.value,
+        platform: platform.value || undefined,
+        group_id: groupId.value ?? undefined,
+        mode: queryMode.value
+      },
+      { signal }
+    )
+    if (fetchSeq !== dashboardFetchSeq) return
+    errorDistribution.value = data
+  } catch (err: any) {
+    if (fetchSeq !== dashboardFetchSeq || isCanceledRequest(err)) return
+    errorDistribution.value = null
+    appStore.showError(err?.message || 'Failed to load error distribution')
+  } finally {
+    if (fetchSeq === dashboardFetchSeq) {
+      loadingErrorDistribution.value = false
+    }
+  }
+}
+
+function isOpsDisabledError(err: unknown): boolean {
+  return (
+    !!err &&
+    typeof err === 'object' &&
+    'code' in err &&
+    typeof (err as Record<string, unknown>).code === 'string' &&
+    (err as Record<string, unknown>).code === 'OPS_DISABLED'
+  )
+}
+
+async function fetchData() {
+  if (!opsEnabled.value) return
+
+  abortDashboardFetch()
+  dashboardFetchSeq += 1
+  const fetchSeq = dashboardFetchSeq
+  dashboardFetchController = new AbortController()
+
+  loading.value = true
+  errorMessage.value = ''
+  try {
+    await Promise.all([
+      refreshOverviewWithCancel(fetchSeq, dashboardFetchController.signal),
+      refreshThroughputTrendWithCancel(fetchSeq, dashboardFetchController.signal),
+      refreshLatencyHistogramWithCancel(fetchSeq, dashboardFetchController.signal),
+      refreshErrorTrendWithCancel(fetchSeq, dashboardFetchController.signal),
+      refreshErrorDistributionWithCancel(fetchSeq, dashboardFetchController.signal)
+    ])
+    if (fetchSeq !== dashboardFetchSeq) return
+    lastUpdated.value = new Date()
+  } catch (err) {
+    if (!isOpsDisabledError(err)) {
+      console.error('[ops] failed to fetch dashboard data', err)
+      errorMessage.value = t('admin.ops.failedToLoadData')
+    }
+  } finally {
+    if (fetchSeq === dashboardFetchSeq) {
+      loading.value = false
+      hasLoadedOnce.value = true
+    }
+  }
+}
+
+watch(
+  () => [timeRange.value, platform.value, groupId.value, queryMode.value] as const,
+  () => {
+    if (isApplyingRouteQuery.value) return
+    if (opsEnabled.value) {
+      fetchData()
+    }
+    syncQueryToRoute()
+  }
+)
+
+watch(
+  () => route.query,
+  () => {
+    if (isSyncingRouteQuery.value) return
+
+    const prevTimeRange = timeRange.value
+    const prevPlatform = platform.value
+    const prevGroupId = groupId.value
+
+    isApplyingRouteQuery.value = true
+    applyRouteQueryToState()
+    isApplyingRouteQuery.value = false
+
+    const changed =
+      prevTimeRange !== timeRange.value || prevPlatform !== platform.value || prevGroupId !== groupId.value
+    if (changed) {
+      if (opsEnabled.value) {
+        fetchData()
+      }
+    }
+  }
+)
+
+onMounted(async () => {
+  await adminSettingsStore.fetch()
+  if (!adminSettingsStore.opsMonitoringEnabled) {
+    await router.replace('/admin/settings')
+    return
+  }
+
+  if (adminSettingsStore.opsRealtimeMonitoringEnabled) {
+    startQPSSubscription()
+  } else {
+    stopQPSSubscription({ resetMetrics: true })
+  }
+
+  if (opsEnabled.value) {
+    await fetchData()
+  }
+})
+
+onUnmounted(() => {
+  stopQPSSubscription()
+  abortDashboardFetch()
+})
+
+watch(
+  () => adminSettingsStore.opsRealtimeMonitoringEnabled,
+  (enabled) => {
+    if (!opsEnabled.value) return
+    if (enabled) {
+      startQPSSubscription()
+    } else {
+      stopQPSSubscription({ resetMetrics: true })
+    }
+  }
+)
+</script>
diff --git a/frontend/src/views/admin/ops/components/OpsAlertEventsCard.vue b/frontend/src/views/admin/ops/components/OpsAlertEventsCard.vue
new file mode 100644
index 00000000..23c49db8
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsAlertEventsCard.vue
@@ -0,0 +1,165 @@
+<script setup lang="ts">
+import { computed, onMounted, ref, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useAppStore } from '@/stores/app'
+import Select from '@/components/common/Select.vue'
+import { opsAPI } from '@/api/admin/ops'
+import type { AlertEvent } from '../types'
+import { formatDateTime } from '../utils/opsFormatters'
+
+const { t } = useI18n()
+const appStore = useAppStore()
+
+const loading = ref(false)
+const events = ref<AlertEvent[]>([])
+
+const limit = ref(100)
+const limitOptions = computed(() => [
+  { value: 50, label: '50' },
+  { value: 100, label: '100' },
+  { value: 200, label: '200' }
+])
+
+async function load() {
+  loading.value = true
+  try {
+    events.value = await opsAPI.listAlertEvents(limit.value)
+  } catch (err: any) {
+    console.error('[OpsAlertEventsCard] Failed to load alert events', err)
+    appStore.showError(err?.response?.data?.detail || t('admin.ops.alertEvents.loadFailed'))
+    events.value = []
+  } finally {
+    loading.value = false
+  }
+}
+
+onMounted(() => {
+  load()
+})
+
+watch(limit, () => {
+  load()
+})
+
+function severityBadgeClass(severity: string | undefined): string {
+  const s = String(severity || '').trim().toLowerCase()
+  if (s === 'p0' || s === 'critical') return 'bg-red-100 text-red-700 dark:bg-red-900/30 dark:text-red-300'
+  if (s === 'p1' || s === 'warning') return 'bg-amber-100 text-amber-700 dark:bg-amber-900/30 dark:text-amber-300'
+  if (s === 'p2' || s === 'info') return 'bg-blue-100 text-blue-700 dark:bg-blue-900/30 dark:text-blue-300'
+  if (s === 'p3') return 'bg-gray-100 text-gray-700 dark:bg-dark-700 dark:text-gray-300'
+  return 'bg-gray-100 text-gray-700 dark:bg-dark-700 dark:text-gray-300'
+}
+
+function statusBadgeClass(status: string | undefined): string {
+  const s = String(status || '').trim().toLowerCase()
+  if (s === 'firing') return 'bg-red-50 text-red-700 ring-red-600/20 dark:bg-red-900/30 dark:text-red-300 dark:ring-red-500/30'
+  if (s === 'resolved') return 'bg-green-50 text-green-700 ring-green-600/20 dark:bg-green-900/30 dark:text-green-300 dark:ring-green-500/30'
+  return 'bg-gray-50 text-gray-700 ring-gray-600/20 dark:bg-gray-900/30 dark:text-gray-300 dark:ring-gray-500/30'
+}
+
+const empty = computed(() => events.value.length === 0 && !loading.value)
+</script>
+
+<template>
+  <div class="rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <div class="mb-4 flex items-start justify-between gap-4">
+      <div>
+        <h3 class="text-sm font-bold text-gray-900 dark:text-white">{{ t('admin.ops.alertEvents.title') }}</h3>
+        <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.alertEvents.description') }}</p>
+      </div>
+
+      <div class="flex items-center gap-2">
+        <Select :model-value="limit" :options="limitOptions" class="w-[88px]" @change="limit = Number($event || 100)" />
+        <button
+          class="flex items-center gap-1.5 rounded-lg bg-gray-100 px-3 py-1.5 text-xs font-bold text-gray-700 transition-colors hover:bg-gray-200 disabled:cursor-not-allowed disabled:opacity-50 dark:bg-dark-700 dark:text-gray-300 dark:hover:bg-dark-600"
+          :disabled="loading"
+          @click="load"
+        >
+          <svg class="h-3.5 w-3.5" :class="{ 'animate-spin': loading }" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+          </svg>
+          {{ t('common.refresh') }}
+        </button>
+      </div>
+    </div>
+
+    <div v-if="loading" class="flex items-center gap-2 text-sm text-gray-500 dark:text-gray-400">
+      <svg class="h-4 w-4 animate-spin" fill="none" viewBox="0 0 24 24">
+        <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+        <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
+      </svg>
+      {{ t('admin.ops.alertEvents.loading') }}
+    </div>
+
+    <div v-else-if="empty" class="rounded-xl border border-dashed border-gray-200 p-8 text-center text-sm text-gray-500 dark:border-dark-700 dark:text-gray-400">
+      {{ t('admin.ops.alertEvents.empty') }}
+    </div>
+
+    <div v-else class="overflow-hidden rounded-xl border border-gray-200 dark:border-dark-700">
+      <div class="max-h-[600px] overflow-y-auto overflow-x-auto">
+        <table class="min-w-full divide-y divide-gray-200 dark:divide-dark-700">
+          <thead class="bg-gray-50 dark:bg-dark-900">
+            <tr>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertEvents.table.time') }}
+              </th>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertEvents.table.status') }}
+              </th>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertEvents.table.severity') }}
+              </th>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertEvents.table.title') }}
+              </th>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertEvents.table.metric') }}
+              </th>
+              <th class="px-4 py-3 text-right text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertEvents.table.email') }}
+              </th>
+            </tr>
+          </thead>
+          <tbody class="divide-y divide-gray-200 bg-white dark:divide-dark-700 dark:bg-dark-800">
+            <tr v-for="row in events" :key="row.id" class="hover:bg-gray-50 dark:hover:bg-dark-700/50">
+              <td class="whitespace-nowrap px-4 py-3 text-xs text-gray-600 dark:text-gray-300">
+                {{ formatDateTime(row.fired_at || row.created_at) }}
+              </td>
+              <td class="whitespace-nowrap px-4 py-3">
+                <span class="inline-flex items-center rounded-full px-2 py-1 text-[10px] font-bold ring-1 ring-inset" :class="statusBadgeClass(row.status)">
+                  {{ String(row.status || '-').toUpperCase() }}
+                </span>
+              </td>
+              <td class="whitespace-nowrap px-4 py-3">
+                <span class="rounded-full px-2 py-1 text-[10px] font-bold" :class="severityBadgeClass(String(row.severity || ''))">
+                  {{ row.severity || '-' }}
+                </span>
+              </td>
+              <td class="min-w-[280px] px-4 py-3 text-xs text-gray-700 dark:text-gray-200">
+                <div class="font-semibold">{{ row.title || '-' }}</div>
+                <div v-if="row.description" class="mt-0.5 line-clamp-2 text-[11px] text-gray-500 dark:text-gray-400">
+                  {{ row.description }}
+                </div>
+              </td>
+              <td class="whitespace-nowrap px-4 py-3 text-xs text-gray-600 dark:text-gray-300">
+                <span v-if="typeof row.metric_value === 'number' && typeof row.threshold_value === 'number'">
+                  {{ row.metric_value.toFixed(2) }} / {{ row.threshold_value.toFixed(2) }}
+                </span>
+                <span v-else>-</span>
+              </td>
+              <td class="whitespace-nowrap px-4 py-3 text-right text-xs">
+                <span
+                  class="inline-flex items-center rounded-full px-2 py-1 text-[10px] font-bold ring-1 ring-inset"
+                  :class="row.email_sent ? 'bg-green-50 text-green-700 ring-green-600/20 dark:bg-green-900/30 dark:text-green-300 dark:ring-green-500/30' : 'bg-gray-50 text-gray-700 ring-gray-600/20 dark:bg-gray-900/30 dark:text-gray-300 dark:ring-gray-500/30'"
+                >
+                  {{ row.email_sent ? t('common.enabled') : t('common.disabled') }}
+                </span>
+              </td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+    </div>
+  </div>
+</template>
+
diff --git a/frontend/src/views/admin/ops/components/OpsAlertRulesCard.vue b/frontend/src/views/admin/ops/components/OpsAlertRulesCard.vue
new file mode 100644
index 00000000..6bf1dcae
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsAlertRulesCard.vue
@@ -0,0 +1,357 @@
+<script setup lang="ts">
+import { computed, onMounted, ref } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useAppStore } from '@/stores/app'
+import BaseDialog from '@/components/common/BaseDialog.vue'
+import ConfirmDialog from '@/components/common/ConfirmDialog.vue'
+import Select from '@/components/common/Select.vue'
+import { opsAPI } from '@/api/admin/ops'
+import type { AlertRule, MetricType, Operator } from '../types'
+import type { OpsSeverity } from '@/api/admin/ops'
+import { formatDateTime } from '../utils/opsFormatters'
+
+const { t } = useI18n()
+const appStore = useAppStore()
+
+const loading = ref(false)
+const rules = ref<AlertRule[]>([])
+
+async function load() {
+  loading.value = true
+  try {
+    rules.value = await opsAPI.listAlertRules()
+  } catch (err: any) {
+    console.error('[OpsAlertRulesCard] Failed to load rules', err)
+    appStore.showError(err?.response?.data?.detail || t('admin.ops.alertRules.loadFailed'))
+    rules.value = []
+  } finally {
+    loading.value = false
+  }
+}
+
+onMounted(() => {
+  load()
+})
+
+const sortedRules = computed(() => {
+  return [...rules.value].sort((a, b) => (b.id || 0) - (a.id || 0))
+})
+
+const showEditor = ref(false)
+const saving = ref(false)
+const editingId = ref<number | null>(null)
+const draft = ref<AlertRule | null>(null)
+
+const metricOptions = computed(() => {
+  const items: Array<{ value: MetricType; label: string }> = [
+    { value: 'success_rate', label: t('admin.ops.alertRules.metrics.successRate') },
+    { value: 'error_rate', label: t('admin.ops.alertRules.metrics.errorRate') },
+    { value: 'p95_latency_ms', label: t('admin.ops.alertRules.metrics.p95') },
+    { value: 'p99_latency_ms', label: t('admin.ops.alertRules.metrics.p99') },
+    { value: 'cpu_usage_percent', label: t('admin.ops.alertRules.metrics.cpu') },
+    { value: 'memory_usage_percent', label: t('admin.ops.alertRules.metrics.memory') },
+    { value: 'concurrency_queue_depth', label: t('admin.ops.alertRules.metrics.queueDepth') }
+  ]
+  return items
+})
+
+const operatorOptions = computed(() => {
+  const ops: Operator[] = ['>', '>=', '<', '<=', '==', '!=']
+  return ops.map((o) => ({ value: o, label: o }))
+})
+
+const severityOptions = computed(() => {
+  const sev: OpsSeverity[] = ['P0', 'P1', 'P2', 'P3']
+  return sev.map((s) => ({ value: s, label: s }))
+})
+
+const windowOptions = computed(() => {
+  const windows = [1, 5, 60]
+  return windows.map((m) => ({ value: m, label: `${m}m` }))
+})
+
+function newRuleDraft(): AlertRule {
+  return {
+    name: '',
+    description: '',
+    enabled: true,
+    metric_type: 'error_rate',
+    operator: '>',
+    threshold: 1,
+    window_minutes: 1,
+    sustained_minutes: 2,
+    severity: 'P1',
+    cooldown_minutes: 10,
+    notify_email: true
+  }
+}
+
+function openCreate() {
+  editingId.value = null
+  draft.value = newRuleDraft()
+  showEditor.value = true
+}
+
+function openEdit(rule: AlertRule) {
+  editingId.value = rule.id ?? null
+  draft.value = JSON.parse(JSON.stringify(rule))
+  showEditor.value = true
+}
+
+const editorValidation = computed(() => {
+  const errors: string[] = []
+  const r = draft.value
+  if (!r) return { valid: true, errors }
+  if (!r.name || !r.name.trim()) errors.push(t('admin.ops.alertRules.validation.nameRequired'))
+  if (!r.metric_type) errors.push(t('admin.ops.alertRules.validation.metricRequired'))
+  if (!r.operator) errors.push(t('admin.ops.alertRules.validation.operatorRequired'))
+  if (!(typeof r.threshold === 'number' && Number.isFinite(r.threshold)))
+    errors.push(t('admin.ops.alertRules.validation.thresholdRequired'))
+  if (!(typeof r.window_minutes === 'number' && Number.isFinite(r.window_minutes) && [1, 5, 60].includes(r.window_minutes))) {
+    errors.push(t('admin.ops.alertRules.validation.windowRange'))
+  }
+  if (!(typeof r.sustained_minutes === 'number' && Number.isFinite(r.sustained_minutes) && r.sustained_minutes >= 1 && r.sustained_minutes <= 1440)) {
+    errors.push(t('admin.ops.alertRules.validation.sustainedRange'))
+  }
+  if (!(typeof r.cooldown_minutes === 'number' && Number.isFinite(r.cooldown_minutes) && r.cooldown_minutes >= 0 && r.cooldown_minutes <= 1440)) {
+    errors.push(t('admin.ops.alertRules.validation.cooldownRange'))
+  }
+  return { valid: errors.length === 0, errors }
+})
+
+async function save() {
+  if (!draft.value) return
+  if (!editorValidation.value.valid) {
+    appStore.showError(editorValidation.value.errors[0] || t('admin.ops.alertRules.validation.invalid'))
+    return
+  }
+  saving.value = true
+  try {
+    if (editingId.value) {
+      await opsAPI.updateAlertRule(editingId.value, draft.value)
+    } else {
+      await opsAPI.createAlertRule(draft.value)
+    }
+    showEditor.value = false
+    draft.value = null
+    editingId.value = null
+    await load()
+    appStore.showSuccess(t('common.success'))
+  } catch (err: any) {
+    console.error('[OpsAlertRulesCard] Failed to save rule', err)
+    appStore.showError(err?.response?.data?.detail || t('admin.ops.alertRules.saveFailed'))
+  } finally {
+    saving.value = false
+  }
+}
+
+const showDeleteConfirm = ref(false)
+const pendingDelete = ref<AlertRule | null>(null)
+
+function requestDelete(rule: AlertRule) {
+  pendingDelete.value = rule
+  showDeleteConfirm.value = true
+}
+
+async function confirmDelete() {
+  if (!pendingDelete.value?.id) return
+  try {
+    await opsAPI.deleteAlertRule(pendingDelete.value.id)
+    showDeleteConfirm.value = false
+    pendingDelete.value = null
+    await load()
+    appStore.showSuccess(t('common.success'))
+  } catch (err: any) {
+    console.error('[OpsAlertRulesCard] Failed to delete rule', err)
+    appStore.showError(err?.response?.data?.detail || t('admin.ops.alertRules.deleteFailed'))
+  }
+}
+
+function cancelDelete() {
+  showDeleteConfirm.value = false
+  pendingDelete.value = null
+}
+</script>
+
+<template>
+  <div class="rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <div class="mb-4 flex items-start justify-between gap-4">
+      <div>
+        <h3 class="text-sm font-bold text-gray-900 dark:text-white">{{ t('admin.ops.alertRules.title') }}</h3>
+        <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.alertRules.description') }}</p>
+      </div>
+
+      <div class="flex items-center gap-2">
+        <button class="btn btn-sm btn-primary" :disabled="loading" @click="openCreate">
+          {{ t('admin.ops.alertRules.create') }}
+        </button>
+        <button
+          class="flex items-center gap-1.5 rounded-lg bg-gray-100 px-3 py-1.5 text-xs font-bold text-gray-700 transition-colors hover:bg-gray-200 disabled:cursor-not-allowed disabled:opacity-50 dark:bg-dark-700 dark:text-gray-300 dark:hover:bg-dark-600"
+          :disabled="loading"
+          @click="load"
+        >
+          <svg class="h-3.5 w-3.5" :class="{ 'animate-spin': loading }" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+          </svg>
+          {{ t('common.refresh') }}
+        </button>
+      </div>
+    </div>
+
+    <div v-if="loading" class="py-10 text-center text-sm text-gray-500 dark:text-gray-400">
+      {{ t('admin.ops.alertRules.loading') }}
+    </div>
+
+    <div v-else-if="sortedRules.length === 0" class="rounded-xl border border-dashed border-gray-200 p-8 text-center text-sm text-gray-500 dark:border-dark-700 dark:text-gray-400">
+      {{ t('admin.ops.alertRules.empty') }}
+    </div>
+
+    <div v-else class="overflow-hidden rounded-xl border border-gray-200 dark:border-dark-700">
+      <div class="overflow-x-auto">
+        <table class="min-w-full divide-y divide-gray-200 dark:divide-dark-700">
+          <thead class="bg-gray-50 dark:bg-dark-900">
+            <tr>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertRules.table.name') }}
+              </th>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertRules.table.metric') }}
+              </th>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertRules.table.severity') }}
+              </th>
+              <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertRules.table.enabled') }}
+              </th>
+              <th class="px-4 py-3 text-right text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.alertRules.table.actions') }}
+              </th>
+            </tr>
+          </thead>
+          <tbody class="divide-y divide-gray-200 bg-white dark:divide-dark-700 dark:bg-dark-800">
+            <tr v-for="row in sortedRules" :key="row.id" class="hover:bg-gray-50 dark:hover:bg-dark-700/50">
+              <td class="px-4 py-3">
+                <div class="text-xs font-bold text-gray-900 dark:text-white">{{ row.name }}</div>
+                <div v-if="row.description" class="mt-0.5 line-clamp-2 text-[11px] text-gray-500 dark:text-gray-400">
+                  {{ row.description }}
+                </div>
+                <div v-if="row.updated_at" class="mt-1 text-[10px] text-gray-400">
+                  {{ formatDateTime(row.updated_at) }}
+                </div>
+              </td>
+              <td class="whitespace-nowrap px-4 py-3 text-xs text-gray-700 dark:text-gray-200">
+                <span class="font-mono">{{ row.metric_type }}</span>
+                <span class="mx-1 text-gray-400">{{ row.operator }}</span>
+                <span class="font-mono">{{ row.threshold }}</span>
+              </td>
+              <td class="whitespace-nowrap px-4 py-3 text-xs font-bold text-gray-700 dark:text-gray-200">
+                {{ row.severity }}
+              </td>
+              <td class="whitespace-nowrap px-4 py-3 text-xs text-gray-700 dark:text-gray-200">
+                {{ row.enabled ? t('common.enabled') : t('common.disabled') }}
+              </td>
+              <td class="whitespace-nowrap px-4 py-3 text-right text-xs">
+                <button class="btn btn-sm btn-secondary" @click="openEdit(row)">{{ t('common.edit') }}</button>
+                <button class="ml-2 btn btn-sm btn-danger" @click="requestDelete(row)">{{ t('common.delete') }}</button>
+              </td>
+            </tr>
+          </tbody>
+        </table>
+      </div>
+    </div>
+
+    <BaseDialog
+      :show="showEditor"
+      :title="editingId ? t('admin.ops.alertRules.editTitle') : t('admin.ops.alertRules.createTitle')"
+      width="wide"
+      @close="showEditor = false"
+    >
+      <div class="space-y-4">
+        <div v-if="!editorValidation.valid" class="rounded-xl bg-red-50 p-4 text-xs text-red-700 dark:bg-red-900/30 dark:text-red-300">
+          <div class="font-bold">{{ t('admin.ops.alertRules.validation.title') }}</div>
+          <ul class="mt-1 list-disc pl-5">
+            <li v-for="e in editorValidation.errors" :key="e">{{ e }}</li>
+          </ul>
+        </div>
+
+        <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
+          <div class="md:col-span-2">
+            <label class="input-label">{{ t('admin.ops.alertRules.form.name') }}</label>
+            <input v-model="draft!.name" class="input" type="text" />
+          </div>
+
+          <div class="md:col-span-2">
+            <label class="input-label">{{ t('admin.ops.alertRules.form.description') }}</label>
+            <input v-model="draft!.description" class="input" type="text" />
+          </div>
+
+          <div>
+            <label class="input-label">{{ t('admin.ops.alertRules.form.metric') }}</label>
+            <Select v-model="draft!.metric_type" :options="metricOptions" />
+          </div>
+
+          <div>
+            <label class="input-label">{{ t('admin.ops.alertRules.form.operator') }}</label>
+            <Select v-model="draft!.operator" :options="operatorOptions" />
+          </div>
+
+          <div>
+            <label class="input-label">{{ t('admin.ops.alertRules.form.threshold') }}</label>
+            <input v-model.number="draft!.threshold" class="input" type="number" />
+          </div>
+
+          <div>
+            <label class="input-label">{{ t('admin.ops.alertRules.form.severity') }}</label>
+            <Select v-model="draft!.severity" :options="severityOptions" />
+          </div>
+
+          <div>
+            <label class="input-label">{{ t('admin.ops.alertRules.form.window') }}</label>
+            <Select v-model="draft!.window_minutes" :options="windowOptions" />
+          </div>
+
+          <div>
+            <label class="input-label">{{ t('admin.ops.alertRules.form.sustained') }}</label>
+            <input v-model.number="draft!.sustained_minutes" class="input" type="number" min="1" max="1440" />
+          </div>
+
+          <div>
+            <label class="input-label">{{ t('admin.ops.alertRules.form.cooldown') }}</label>
+            <input v-model.number="draft!.cooldown_minutes" class="input" type="number" min="0" max="1440" />
+          </div>
+
+          <div class="flex items-center justify-between rounded-xl bg-gray-50 px-4 py-3 dark:bg-dark-800/50 md:col-span-2">
+            <span class="text-xs font-bold text-gray-700 dark:text-gray-200">{{ t('admin.ops.alertRules.form.enabled') }}</span>
+            <input v-model="draft!.enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300 text-primary-600 focus:ring-primary-500" />
+          </div>
+
+          <div class="flex items-center justify-between rounded-xl bg-gray-50 px-4 py-3 dark:bg-dark-800/50 md:col-span-2">
+            <span class="text-xs font-bold text-gray-700 dark:text-gray-200">{{ t('admin.ops.alertRules.form.notifyEmail') }}</span>
+            <input v-model="draft!.notify_email" type="checkbox" class="h-4 w-4 rounded border-gray-300 text-primary-600 focus:ring-primary-500" />
+          </div>
+        </div>
+      </div>
+
+      <template #footer>
+        <div class="flex items-center justify-end gap-2">
+          <button class="btn btn-secondary" :disabled="saving" @click="showEditor = false">
+            {{ t('common.cancel') }}
+          </button>
+          <button class="btn btn-primary" :disabled="saving" @click="save">
+            {{ saving ? t('common.saving') : t('common.save') }}
+          </button>
+        </div>
+      </template>
+    </BaseDialog>
+
+    <ConfirmDialog
+      :show="showDeleteConfirm"
+      :title="t('admin.ops.alertRules.deleteConfirmTitle')"
+      :message="t('admin.ops.alertRules.deleteConfirmMessage')"
+      :confirmText="t('common.delete')"
+      :cancelText="t('common.cancel')"
+      @confirm="confirmDelete"
+      @cancel="cancelDelete"
+    />
+  </div>
+</template>
diff --git a/frontend/src/views/admin/ops/components/OpsConcurrencyCard.vue b/frontend/src/views/admin/ops/components/OpsConcurrencyCard.vue
new file mode 100644
index 00000000..99e4f3ae
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsConcurrencyCard.vue
@@ -0,0 +1,525 @@
+<script setup lang="ts">
+import { computed, onMounted, onUnmounted, ref, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useIntervalFn } from '@vueuse/core'
+import { opsAPI, type OpsAccountAvailabilityStatsResponse, type OpsConcurrencyStatsResponse } from '@/api/admin/ops'
+
+interface Props {
+  platformFilter?: string
+  groupIdFilter?: number | null
+}
+
+const props = withDefaults(defineProps<Props>(), {
+  platformFilter: '',
+  groupIdFilter: null
+})
+
+const { t } = useI18n()
+
+const loading = ref(false)
+const errorMessage = ref('')
+const concurrency = ref<OpsConcurrencyStatsResponse | null>(null)
+const availability = ref<OpsAccountAvailabilityStatsResponse | null>(null)
+
+const realtimeEnabled = computed(() => {
+  return (concurrency.value?.enabled ?? true) && (availability.value?.enabled ?? true)
+})
+
+function safeNumber(n: unknown): number {
+  return typeof n === 'number' && Number.isFinite(n) ? n : 0
+}
+
+// 计算显示维度
+const displayDimension = computed<'platform' | 'group' | 'account'>(() => {
+  if (typeof props.groupIdFilter === 'number' && props.groupIdFilter > 0) {
+    return 'account'
+  }
+  if (props.platformFilter) {
+    return 'group'
+  }
+  return 'platform'
+})
+
+// 平台/分组汇总行数据
+interface SummaryRow {
+  key: string
+  name: string
+  platform?: string
+  // 账号统计
+  total_accounts: number
+  available_accounts: number
+  rate_limited_accounts: number
+  error_accounts: number
+  // 并发统计
+  total_concurrency: number
+  used_concurrency: number
+  waiting_in_queue: number
+  // 计算字段
+  availability_percentage: number
+  concurrency_percentage: number
+}
+
+// 账号详细行数据
+interface AccountRow {
+  key: string
+  name: string
+  platform: string
+  group_name: string
+  // 并发
+  current_in_use: number
+  max_capacity: number
+  waiting_in_queue: number
+  load_percentage: number
+  // 状态
+  is_available: boolean
+  is_rate_limited: boolean
+  rate_limit_remaining_sec?: number
+  is_overloaded: boolean
+  overload_remaining_sec?: number
+  has_error: boolean
+  error_message?: string
+}
+
+// 平台维度汇总
+const platformRows = computed((): SummaryRow[] => {
+  const concStats = concurrency.value?.platform || {}
+  const availStats = availability.value?.platform || {}
+
+  const platforms = new Set([...Object.keys(concStats), ...Object.keys(availStats)])
+
+  return Array.from(platforms).map(platform => {
+    const conc = concStats[platform] || {}
+    const avail = availStats[platform] || {}
+
+    const totalAccounts = safeNumber(avail.total_accounts)
+    const availableAccounts = safeNumber(avail.available_count)
+    const totalConcurrency = safeNumber(conc.max_capacity)
+    const usedConcurrency = safeNumber(conc.current_in_use)
+
+    return {
+      key: platform,
+      name: platform.toUpperCase(),
+      total_accounts: totalAccounts,
+      available_accounts: availableAccounts,
+      rate_limited_accounts: safeNumber(avail.rate_limit_count),
+      error_accounts: safeNumber(avail.error_count),
+      total_concurrency: totalConcurrency,
+      used_concurrency: usedConcurrency,
+      waiting_in_queue: safeNumber(conc.waiting_in_queue),
+      availability_percentage: totalAccounts > 0 ? Math.round((availableAccounts / totalAccounts) * 100) : 0,
+      concurrency_percentage: totalConcurrency > 0 ? Math.round((usedConcurrency / totalConcurrency) * 100) : 0
+    }
+  }).sort((a, b) => b.concurrency_percentage - a.concurrency_percentage)
+})
+
+// 分组维度汇总
+const groupRows = computed((): SummaryRow[] => {
+  const concStats = concurrency.value?.group || {}
+  const availStats = availability.value?.group || {}
+
+  const groupIds = new Set([...Object.keys(concStats), ...Object.keys(availStats)])
+
+  const rows = Array.from(groupIds)
+    .map(gid => {
+      const conc = concStats[gid] || {}
+      const avail = availStats[gid] || {}
+
+      // 只显示匹配的平台
+      if (props.platformFilter && conc.platform !== props.platformFilter && avail.platform !== props.platformFilter) {
+        return null
+      }
+
+      const totalAccounts = safeNumber(avail.total_accounts)
+      const availableAccounts = safeNumber(avail.available_count)
+      const totalConcurrency = safeNumber(conc.max_capacity)
+      const usedConcurrency = safeNumber(conc.current_in_use)
+
+      return {
+        key: gid,
+        name: String(conc.group_name || avail.group_name || `Group ${gid}`),
+        platform: String(conc.platform || avail.platform || ''),
+        total_accounts: totalAccounts,
+        available_accounts: availableAccounts,
+        rate_limited_accounts: safeNumber(avail.rate_limit_count),
+        error_accounts: safeNumber(avail.error_count),
+        total_concurrency: totalConcurrency,
+        used_concurrency: usedConcurrency,
+        waiting_in_queue: safeNumber(conc.waiting_in_queue),
+        availability_percentage: totalAccounts > 0 ? Math.round((availableAccounts / totalAccounts) * 100) : 0,
+        concurrency_percentage: totalConcurrency > 0 ? Math.round((usedConcurrency / totalConcurrency) * 100) : 0
+      }
+    })
+    .filter((row): row is NonNullable<typeof row> => row !== null)
+
+  return rows.sort((a, b) => b.concurrency_percentage - a.concurrency_percentage)
+})
+
+// 账号维度详细
+const accountRows = computed((): AccountRow[] => {
+  const concStats = concurrency.value?.account || {}
+  const availStats = availability.value?.account || {}
+
+  const accountIds = new Set([...Object.keys(concStats), ...Object.keys(availStats)])
+
+  const rows = Array.from(accountIds)
+    .map(aid => {
+      const conc = concStats[aid] || {}
+      const avail = availStats[aid] || {}
+
+      // 只显示匹配的分组
+      if (typeof props.groupIdFilter === 'number' && props.groupIdFilter > 0) {
+        if (conc.group_id !== props.groupIdFilter && avail.group_id !== props.groupIdFilter) {
+          return null
+        }
+      }
+
+      return {
+        key: aid,
+        name: String(conc.account_name || avail.account_name || `Account ${aid}`),
+        platform: String(conc.platform || avail.platform || ''),
+        group_name: String(conc.group_name || avail.group_name || ''),
+        current_in_use: safeNumber(conc.current_in_use),
+        max_capacity: safeNumber(conc.max_capacity),
+        waiting_in_queue: safeNumber(conc.waiting_in_queue),
+        load_percentage: safeNumber(conc.load_percentage),
+        is_available: avail.is_available || false,
+        is_rate_limited: avail.is_rate_limited || false,
+        rate_limit_remaining_sec: avail.rate_limit_remaining_sec,
+        is_overloaded: avail.is_overloaded || false,
+        overload_remaining_sec: avail.overload_remaining_sec,
+        has_error: avail.has_error || false,
+        error_message: avail.error_message || ''
+      }
+    })
+    .filter((row): row is NonNullable<typeof row> => row !== null)
+
+  return rows.sort((a, b) => {
+    // 优先显示异常账号
+    if (a.has_error !== b.has_error) return a.has_error ? -1 : 1
+    if (a.is_rate_limited !== b.is_rate_limited) return a.is_rate_limited ? -1 : 1
+    // 然后按负载排序
+    return b.load_percentage - a.load_percentage
+  })
+})
+
+// 根据维度选择数据
+const displayRows = computed(() => {
+  if (displayDimension.value === 'account') return accountRows.value
+  if (displayDimension.value === 'group') return groupRows.value
+  return platformRows.value
+})
+
+const displayTitle = computed(() => {
+  if (displayDimension.value === 'account') return t('admin.ops.concurrency.byAccount')
+  if (displayDimension.value === 'group') return t('admin.ops.concurrency.byGroup')
+  return t('admin.ops.concurrency.byPlatform')
+})
+
+async function loadData() {
+  loading.value = true
+  errorMessage.value = ''
+  try {
+    const [concData, availData] = await Promise.all([
+      opsAPI.getConcurrencyStats(props.platformFilter, props.groupIdFilter),
+      opsAPI.getAccountAvailabilityStats(props.platformFilter, props.groupIdFilter)
+    ])
+    concurrency.value = concData
+    availability.value = availData
+  } catch (err: any) {
+    console.error('[OpsConcurrencyCard] Failed to load data', err)
+    errorMessage.value = err?.response?.data?.detail || t('admin.ops.concurrency.loadFailed')
+  } finally {
+    loading.value = false
+  }
+}
+
+// 定期刷新（5秒）
+const { pause: pauseRefresh, resume: resumeRefresh } = useIntervalFn(
+  () => {
+    if (realtimeEnabled.value) {
+      loadData()
+    }
+  },
+  5000,
+  { immediate: false }
+)
+
+function getLoadBarClass(loadPct: number): string {
+  if (loadPct >= 90) return 'bg-red-500 dark:bg-red-600'
+  if (loadPct >= 70) return 'bg-orange-500 dark:bg-orange-600'
+  if (loadPct >= 50) return 'bg-yellow-500 dark:bg-yellow-600'
+  return 'bg-green-500 dark:bg-green-600'
+}
+
+function getLoadBarStyle(loadPct: number): string {
+  return `width: ${Math.min(100, Math.max(0, loadPct))}%`
+}
+
+function getLoadTextClass(loadPct: number): string {
+  if (loadPct >= 90) return 'text-red-600 dark:text-red-400'
+  if (loadPct >= 70) return 'text-orange-600 dark:text-orange-400'
+  if (loadPct >= 50) return 'text-yellow-600 dark:text-yellow-400'
+  return 'text-green-600 dark:text-green-400'
+}
+
+function formatDuration(seconds: number): string {
+  if (seconds <= 0) return '0s'
+  if (seconds < 60) return `${Math.round(seconds)}s`
+  const minutes = Math.floor(seconds / 60)
+  if (minutes < 60) return `${minutes}m`
+  const hours = Math.floor(minutes / 60)
+  return `${hours}h`
+}
+
+onMounted(() => {
+  loadData()
+  resumeRefresh()
+})
+
+onUnmounted(() => {
+  pauseRefresh()
+})
+
+watch(realtimeEnabled, async (enabled) => {
+  if (!enabled) {
+    pauseRefresh()
+  } else {
+    resumeRefresh()
+    await loadData()
+  }
+})
+</script>
+
+<template>
+  <div class="flex h-full flex-col rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <!-- 头部 -->
+    <div class="mb-4 flex shrink-0 items-center justify-between gap-3">
+      <h3 class="flex items-center gap-2 text-sm font-bold text-gray-900 dark:text-white">
+        <svg class="h-4 w-4 text-blue-500" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 10V3L4 14h7v7l9-11h-7z" />
+        </svg>
+        {{ t('admin.ops.concurrency.title') }}
+      </h3>
+      <button
+        class="flex items-center gap-1 rounded-lg bg-gray-100 px-2 py-1 text-[11px] font-semibold text-gray-700 transition-colors hover:bg-gray-200 disabled:cursor-not-allowed disabled:opacity-50 dark:bg-dark-700 dark:text-gray-300 dark:hover:bg-dark-600"
+        :disabled="loading"
+        :title="t('common.refresh')"
+        @click="loadData"
+      >
+        <svg class="h-3 w-3" :class="{ 'animate-spin': loading }" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+        </svg>
+      </button>
+    </div>
+
+    <!-- 错误提示 -->
+    <div v-if="errorMessage" class="mb-3 shrink-0 rounded-xl bg-red-50 p-2.5 text-xs text-red-600 dark:bg-red-900/20 dark:text-red-400">
+      {{ errorMessage }}
+    </div>
+
+    <!-- 禁用状态 -->
+    <div
+      v-if="!realtimeEnabled"
+      class="flex flex-1 items-center justify-center rounded-xl border border-dashed border-gray-200 text-sm text-gray-500 dark:border-dark-700 dark:text-gray-400"
+    >
+      {{ t('admin.ops.concurrency.disabledHint') }}
+    </div>
+
+    <!-- 数据展示区域 -->
+    <div v-else class="flex min-h-0 flex-1 flex-col overflow-hidden rounded-xl border border-gray-200 dark:border-dark-700">
+      <!-- 维度标题栏 -->
+      <div class="flex shrink-0 items-center justify-between border-b border-gray-200 bg-gray-50 px-3 py-2 dark:border-dark-700 dark:bg-dark-900">
+        <span class="text-[10px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+          {{ displayTitle }}
+        </span>
+        <span class="text-[10px] text-gray-500 dark:text-gray-400">
+          {{ t('admin.ops.concurrency.totalRows', { count: displayRows.length }) }}
+        </span>
+      </div>
+
+      <!-- 空状态 -->
+      <div v-if="displayRows.length === 0" class="flex flex-1 items-center justify-center text-sm text-gray-500 dark:text-gray-400">
+        {{ t('admin.ops.concurrency.empty') }}
+      </div>
+
+      <!-- 汇总视图（平台/分组） -->
+      <div v-else-if="displayDimension !== 'account'" class="custom-scrollbar flex-1 space-y-2 overflow-y-auto p-3">
+        <div v-for="row in (displayRows as SummaryRow[])" :key="row.key" class="rounded-lg bg-gray-50 p-3 dark:bg-dark-900">
+          <!-- 标题行 -->
+          <div class="mb-2 flex items-center justify-between gap-2">
+            <div class="flex items-center gap-2">
+              <div class="truncate text-[11px] font-bold text-gray-900 dark:text-white" :title="row.name">
+                {{ row.name }}
+              </div>
+              <span v-if="displayDimension === 'group' && row.platform" class="text-[10px] text-gray-400 dark:text-gray-500">
+                {{ row.platform.toUpperCase() }}
+              </span>
+            </div>
+            <div class="flex shrink-0 items-center gap-2 text-[10px]">
+              <span class="font-mono font-bold text-gray-900 dark:text-white"> {{ row.used_concurrency }}/{{ row.total_concurrency }} </span>
+              <span :class="['font-bold', getLoadTextClass(row.concurrency_percentage)]"> {{ row.concurrency_percentage }}% </span>
+            </div>
+          </div>
+
+          <!-- 进度条 -->
+          <div class="mb-2 h-1.5 w-full overflow-hidden rounded-full bg-gray-200 dark:bg-dark-700">
+            <div
+              class="h-full rounded-full transition-all duration-300"
+              :class="getLoadBarClass(row.concurrency_percentage)"
+              :style="getLoadBarStyle(row.concurrency_percentage)"
+            ></div>
+          </div>
+
+          <!-- 统计信息 -->
+          <div class="flex flex-wrap items-center gap-x-3 gap-y-1 text-[10px]">
+            <!-- 账号统计 -->
+            <div class="flex items-center gap-1">
+              <svg class="h-3 w-3 text-gray-400" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                <path
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                  stroke-width="2"
+                  d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z"
+                />
+              </svg>
+              <span class="text-gray-600 dark:text-gray-300">
+                <span class="font-bold text-green-600 dark:text-green-400">{{ row.available_accounts }}</span
+                >/{{ row.total_accounts }}
+              </span>
+              <span class="text-gray-400 dark:text-gray-500">{{ row.availability_percentage }}%</span>
+            </div>
+
+            <!-- 限流账号 -->
+            <span
+              v-if="row.rate_limited_accounts > 0"
+              class="rounded-full bg-amber-100 px-1.5 py-0.5 font-semibold text-amber-700 dark:bg-amber-900/30 dark:text-amber-400"
+            >
+              {{ t('admin.ops.concurrency.rateLimited', { count: row.rate_limited_accounts }) }}
+            </span>
+
+            <!-- 异常账号 -->
+            <span
+              v-if="row.error_accounts > 0"
+              class="rounded-full bg-red-100 px-1.5 py-0.5 font-semibold text-red-700 dark:bg-red-900/30 dark:text-red-400"
+            >
+              {{ t('admin.ops.concurrency.errorAccounts', { count: row.error_accounts }) }}
+            </span>
+
+            <!-- 等待队列 -->
+            <span
+              v-if="row.waiting_in_queue > 0"
+              class="rounded-full bg-purple-100 px-1.5 py-0.5 font-semibold text-purple-700 dark:bg-purple-900/30 dark:text-purple-400"
+            >
+              {{ t('admin.ops.concurrency.queued', { count: row.waiting_in_queue }) }}
+            </span>
+          </div>
+        </div>
+      </div>
+
+      <!-- 账号详细视图 -->
+      <div v-else class="custom-scrollbar flex-1 space-y-2 overflow-y-auto p-3">
+        <div v-for="row in (displayRows as AccountRow[])" :key="row.key" class="rounded-lg bg-gray-50 p-2.5 dark:bg-dark-900">
+          <!-- 账号名称和并发 -->
+          <div class="mb-1.5 flex items-center justify-between gap-2">
+            <div class="min-w-0 flex-1">
+              <div class="truncate text-[11px] font-bold text-gray-900 dark:text-white" :title="row.name">
+                {{ row.name }}
+              </div>
+              <div class="mt-0.5 text-[9px] text-gray-400 dark:text-gray-500">
+                {{ row.group_name }}
+              </div>
+            </div>
+            <div class="flex shrink-0 items-center gap-2">
+              <!-- 并发使用 -->
+              <span class="font-mono text-[11px] font-bold text-gray-900 dark:text-white"> {{ row.current_in_use }}/{{ row.max_capacity }} </span>
+              <!-- 状态徽章 -->
+              <span
+                v-if="row.is_available"
+                class="inline-flex items-center gap-1 rounded bg-green-100 px-1.5 py-0.5 text-[10px] font-medium text-green-700 dark:bg-green-900/30 dark:text-green-400"
+              >
+                <svg class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                  <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 13l4 4L19 7" />
+                </svg>
+                {{ t('admin.ops.accountAvailability.available') }}
+              </span>
+              <span
+                v-else-if="row.is_rate_limited"
+                class="inline-flex items-center gap-1 rounded bg-amber-100 px-1.5 py-0.5 text-[10px] font-medium text-amber-700 dark:bg-amber-900/30 dark:text-amber-400"
+              >
+                <svg class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                  <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z" />
+                </svg>
+                {{ formatDuration(row.rate_limit_remaining_sec || 0) }}
+              </span>
+              <span
+                v-else-if="row.is_overloaded"
+                class="inline-flex items-center gap-1 rounded bg-red-100 px-1.5 py-0.5 text-[10px] font-medium text-red-700 dark:bg-red-900/30 dark:text-red-400"
+              >
+                <svg class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                  <path
+                    stroke-linecap="round"
+                    stroke-linejoin="round"
+                    stroke-width="2"
+                    d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"
+                  />
+                </svg>
+                {{ formatDuration(row.overload_remaining_sec || 0) }}
+              </span>
+              <span
+                v-else-if="row.has_error"
+                class="inline-flex items-center gap-1 rounded bg-red-100 px-1.5 py-0.5 text-[10px] font-medium text-red-700 dark:bg-red-900/30 dark:text-red-400"
+              >
+                <svg class="h-3 w-3" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                  <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
+                </svg>
+                {{ t('admin.ops.accountAvailability.accountError') }}
+              </span>
+              <span
+                v-else
+                class="inline-flex items-center gap-1 rounded bg-gray-100 px-1.5 py-0.5 text-[10px] font-medium text-gray-700 dark:bg-gray-800 dark:text-gray-400"
+              >
+                {{ t('admin.ops.accountAvailability.unavailable') }}
+              </span>
+            </div>
+          </div>
+
+          <!-- 进度条 -->
+          <div class="h-1.5 w-full overflow-hidden rounded-full bg-gray-200 dark:bg-dark-700">
+            <div class="h-full rounded-full transition-all duration-300" :class="getLoadBarClass(row.load_percentage)" :style="getLoadBarStyle(row.load_percentage)"></div>
+          </div>
+
+          <!-- 等待队列 -->
+          <div v-if="row.waiting_in_queue > 0" class="mt-1.5 flex justify-end">
+            <span class="rounded-full bg-purple-100 px-1.5 py-0.5 text-[10px] font-semibold text-purple-700 dark:bg-purple-900/30 dark:text-purple-400">
+              {{ t('admin.ops.concurrency.queued', { count: row.waiting_in_queue }) }}
+            </span>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.custom-scrollbar {
+  scrollbar-width: thin;
+  scrollbar-color: rgba(156, 163, 175, 0.3) transparent;
+}
+
+.custom-scrollbar::-webkit-scrollbar {
+  width: 6px;
+}
+
+.custom-scrollbar::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+.custom-scrollbar::-webkit-scrollbar-thumb {
+  background-color: rgba(156, 163, 175, 0.3);
+  border-radius: 3px;
+}
+
+.custom-scrollbar::-webkit-scrollbar-thumb:hover {
+  background-color: rgba(156, 163, 175, 0.5);
+}
+</style>
diff --git a/frontend/src/views/admin/ops/components/OpsDashboardHeader.vue b/frontend/src/views/admin/ops/components/OpsDashboardHeader.vue
new file mode 100644
index 00000000..c2c6adb6
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsDashboardHeader.vue
@@ -0,0 +1,374 @@
+<script setup lang="ts">
+import { computed, onMounted, ref, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import Select from '@/components/common/Select.vue'
+import { adminAPI } from '@/api'
+import type { OpsDashboardOverview, OpsWSStatus } from '@/api/admin/ops'
+import { formatNumber } from '@/utils/format'
+
+interface Props {
+  overview?: OpsDashboardOverview | null
+  wsStatus: OpsWSStatus
+  wsReconnectInMs?: number | null
+  wsHasData?: boolean
+  realTimeQps: number
+  realTimeTps: number
+  platform: string
+  groupId: number | null
+  timeRange: string
+  queryMode: string
+  loading: boolean
+  lastUpdated: Date | null
+}
+
+interface Emits {
+  (e: 'update:platform', value: string): void
+  (e: 'update:group', value: number | null): void
+  (e: 'update:timeRange', value: string): void
+  (e: 'update:queryMode', value: string): void
+  (e: 'refresh'): void
+  (e: 'openRequestDetails'): void
+  (e: 'openErrorDetails', kind: 'request' | 'upstream'): void
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<Emits>()
+
+const { t } = useI18n()
+
+const groups = ref<Array<{ id: number; name: string; platform: string }>>([])
+
+const platformOptions = computed(() => [
+  { value: '', label: t('common.all') },
+  { value: 'openai', label: 'OpenAI' },
+  { value: 'anthropic', label: 'Anthropic' },
+  { value: 'gemini', label: 'Gemini' },
+  { value: 'antigravity', label: 'Antigravity' }
+])
+
+const timeRangeOptions = computed(() => [
+  { value: '5m', label: '5m' },
+  { value: '30m', label: '30m' },
+  { value: '1h', label: '1h' },
+  { value: '6h', label: '6h' },
+  { value: '24h', label: '24h' }
+])
+
+const queryModeOptions = computed(() => [
+  { value: 'auto', label: t('admin.ops.queryMode.auto') },
+  { value: 'raw', label: t('admin.ops.queryMode.raw') },
+  { value: 'preagg', label: t('admin.ops.queryMode.preagg') }
+])
+
+const groupOptions = computed(() => {
+  const filtered = props.platform ? groups.value.filter((g) => g.platform === props.platform) : groups.value
+  return [{ value: null, label: t('common.all') }, ...filtered.map((g) => ({ value: g.id, label: g.name }))]
+})
+
+watch(
+  () => props.platform,
+  (newPlatform) => {
+    if (!newPlatform) return
+    const currentGroup = groups.value.find((g) => g.id === props.groupId)
+    if (currentGroup && currentGroup.platform !== newPlatform) {
+      emit('update:group', null)
+    }
+  }
+)
+
+onMounted(async () => {
+  try {
+    const list = await adminAPI.groups.getAll()
+    groups.value = list.map((g) => ({ id: g.id, name: g.name, platform: g.platform }))
+  } catch (e) {
+    console.error('[OpsDashboardHeader] Failed to load groups', e)
+    groups.value = []
+  }
+})
+
+function handlePlatformChange(val: string | number | boolean | null) {
+  emit('update:platform', String(val || ''))
+}
+
+function handleGroupChange(val: string | number | boolean | null) {
+  if (val === null || val === '' || typeof val === 'boolean') {
+    emit('update:group', null)
+    return
+  }
+  const id = typeof val === 'number' ? val : Number.parseInt(String(val), 10)
+  emit('update:group', Number.isFinite(id) && id > 0 ? id : null)
+}
+
+function handleTimeRangeChange(val: string | number | boolean | null) {
+  emit('update:timeRange', String(val || '1h'))
+}
+
+function handleQueryModeChange(val: string | number | boolean | null) {
+  emit('update:queryMode', String(val || 'auto'))
+}
+
+const updatedAtLabel = computed(() => {
+  if (!props.lastUpdated) return t('common.unknown')
+  return props.lastUpdated.toLocaleTimeString()
+})
+
+const totalRequestsLabel = computed(() => {
+  const n = props.overview?.request_count_total ?? 0
+  return formatNumber(n)
+})
+
+const totalTokensLabel = computed(() => {
+  const n = props.overview?.token_consumed ?? 0
+  return formatNumber(n)
+})
+
+const qpsLabel = computed(() => {
+  const useRealtime = props.wsStatus === 'connected' && !!props.wsHasData
+  const n = useRealtime ? props.realTimeQps : props.overview?.qps?.current
+  if (typeof n !== 'number') return '-'
+  return n.toFixed(1)
+})
+
+const tpsLabel = computed(() => {
+  const useRealtime = props.wsStatus === 'connected' && !!props.wsHasData
+  const n = useRealtime ? props.realTimeTps : props.overview?.tps?.current
+  if (typeof n !== 'number') return '-'
+  return n.toFixed(1)
+})
+
+const qpsPeakLabel = computed(() => {
+  const n = props.overview?.qps?.peak
+  if (typeof n !== 'number') return '-'
+  return n.toFixed(1)
+})
+
+const tpsPeakLabel = computed(() => {
+  const n = props.overview?.tps?.peak
+  if (typeof n !== 'number') return '-'
+  return n.toFixed(1)
+})
+
+const slaLabel = computed(() => {
+  const v = props.overview?.sla
+  if (typeof v !== 'number') return '-'
+  return `${(v * 100).toFixed(3)}%`
+})
+
+const errorRateLabel = computed(() => {
+  const v = props.overview?.error_rate
+  if (typeof v !== 'number') return '-'
+  return `${(v * 100).toFixed(2)}%`
+})
+
+const upstreamErrorRateLabel = computed(() => {
+  const v = props.overview?.upstream_error_rate
+  if (typeof v !== 'number') return '-'
+  return `${(v * 100).toFixed(2)}%`
+})
+
+const wsStatusLabel = computed(() => {
+  switch (props.wsStatus) {
+    case 'connected':
+      return t('admin.ops.realtime.connected')
+    case 'connecting':
+      return t('admin.ops.realtime.connecting')
+    case 'reconnecting':
+      return t('admin.ops.realtime.reconnecting')
+    case 'offline':
+      return t('admin.ops.realtime.offline')
+    case 'closed':
+    default:
+      return t('admin.ops.realtime.closed')
+  }
+})
+
+const wsStatusDotClass = computed(() => {
+  switch (props.wsStatus) {
+    case 'connected':
+      return 'bg-green-500'
+    case 'reconnecting':
+    case 'connecting':
+      return 'bg-yellow-500'
+    case 'offline':
+      return 'bg-orange-500'
+    case 'closed':
+    default:
+      return 'bg-gray-400'
+  }
+})
+
+const wsReconnectHint = computed(() => {
+  if (props.wsStatus !== 'reconnecting') return ''
+  const delayMs = props.wsReconnectInMs ?? null
+  if (typeof delayMs !== 'number' || !Number.isFinite(delayMs) || delayMs <= 0) return ''
+  const sec = Math.max(1, Math.ceil(delayMs / 1000))
+  return t('admin.ops.realtime.reconnectIn', { seconds: sec })
+})
+</script>
+
+<template>
+  <div class="flex flex-col gap-4 rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <!-- Top Toolbar (style aligned with docs/sub2api baseline) -->
+    <div class="flex flex-wrap items-center justify-between gap-4 border-b border-gray-100 pb-4 dark:border-dark-700">
+      <div>
+        <h1 class="flex items-center gap-2 text-xl font-black text-gray-900 dark:text-white">
+          <svg class="h-6 w-6 text-blue-500" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              stroke-width="2"
+              d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zm0 0V9a2 2 0 012-2h2a2 2 0 012 2v10m-6 0a2 2 0 002 2h2a2 2 0 002-2m0 0V5a2 2 0 012-2h2a2 2 0 01-2 2h-2a2 2 0 01-2-2z"
+            />
+          </svg>
+          {{ t('admin.ops.title') }}
+        </h1>
+        <div class="mt-1 flex items-center gap-3 text-xs text-gray-500 dark:text-gray-400">
+          <span class="flex items-center gap-1.5" :title="props.loading ? t('admin.ops.loadingText') : t('admin.ops.ready')">
+            <span class="relative flex h-2 w-2">
+              <span
+                class="relative inline-flex h-2 w-2 rounded-full"
+                :class="props.loading ? 'bg-gray-400' : 'bg-green-500'"
+              ></span>
+            </span>
+            {{ props.loading ? t('admin.ops.loadingText') : t('admin.ops.ready') }}
+          </span>
+          <span>·</span>
+          <span>{{ t('common.refresh') }}: {{ updatedAtLabel }}</span>
+          <span>·</span>
+          <span class="flex items-center gap-1.5">
+            <span class="relative flex h-2 w-2">
+              <span class="relative inline-flex h-2 w-2 rounded-full" :class="wsStatusDotClass"></span>
+            </span>
+            <span>{{ wsStatusLabel }}</span>
+            <span v-if="wsReconnectHint" class="text-[11px] text-gray-400">({{ wsReconnectHint }})</span>
+          </span>
+        </div>
+      </div>
+
+      <div class="flex flex-wrap items-center gap-3">
+        <Select
+          :model-value="platform"
+          :options="platformOptions"
+          class="w-full sm:w-[140px]"
+          @update:model-value="handlePlatformChange"
+        />
+
+        <Select
+          :model-value="groupId"
+          :options="groupOptions"
+          class="w-full sm:w-[140px]"
+          @update:model-value="handleGroupChange"
+        />
+
+        <div class="mx-1 hidden h-4 w-[1px] bg-gray-200 dark:bg-dark-700 sm:block"></div>
+
+        <Select
+          :model-value="timeRange"
+          :options="timeRangeOptions"
+          class="relative w-full sm:w-[150px]"
+          @update:model-value="handleTimeRangeChange"
+        />
+
+        <Select
+          :model-value="queryMode"
+          :options="queryModeOptions"
+          class="relative w-full sm:w-[170px]"
+          @update:model-value="handleQueryModeChange"
+        />
+
+        <button
+          type="button"
+          class="flex h-8 w-8 items-center justify-center rounded-lg bg-gray-100 text-gray-500 transition-colors hover:bg-gray-200 dark:bg-dark-700 dark:text-gray-400 dark:hover:bg-dark-600"
+          :disabled="loading"
+          :title="t('common.refresh')"
+          @click="emit('refresh')"
+        >
+          <svg class="h-4 w-4" :class="{ 'animate-spin': loading }" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              stroke-width="2"
+              d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"
+            />
+          </svg>
+        </button>
+      </div>
+    </div>
+
+    <!-- Placeholder section to keep header height close to baseline.
+         Will be progressively filled as Milestone 6 modules land. -->
+    <div class="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-4">
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-900/30">
+        <div class="text-[10px] font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.requests') }}</div>
+        <div class="mt-2 text-xl font-black text-gray-900 dark:text-white">
+          {{ totalRequestsLabel }}
+        </div>
+        <div class="mt-1 text-xs font-medium text-gray-500 dark:text-gray-400">
+          {{ t('admin.ops.tokens') }}: {{ totalTokensLabel }}
+        </div>
+      </div>
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-900/30">
+        <div class="text-[10px] font-bold uppercase tracking-wider text-gray-400">QPS / TPS</div>
+        <div class="mt-2 flex items-end justify-between gap-3">
+          <div class="text-xl font-black text-gray-900 dark:text-white">
+            {{ qpsLabel }} <span class="text-xs font-semibold text-gray-400">/</span> {{ tpsLabel }}
+          </div>
+          <button
+            type="button"
+            class="inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 dark:border-dark-700 dark:bg-dark-800 dark:text-gray-300 dark:hover:bg-dark-700"
+            :disabled="props.loading"
+            :title="t('admin.ops.requestDetails.title')"
+            @click="emit('openRequestDetails')"
+          >
+            {{ t('admin.ops.requestDetails.details') }}
+          </button>
+        </div>
+        <div class="mt-1 text-xs font-medium text-gray-500 dark:text-gray-400">
+          {{ t('admin.ops.peak') }}: {{ qpsPeakLabel }} / {{ tpsPeakLabel }}
+        </div>
+      </div>
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-900/30">
+        <div class="text-[10px] font-bold uppercase tracking-wider text-gray-400">SLA</div>
+        <div class="mt-2 text-xl font-black text-gray-900 dark:text-white">
+          {{ slaLabel }}
+        </div>
+        <div class="mt-1 text-xs font-medium text-gray-500 dark:text-gray-400">
+          {{ t('admin.ops.businessLimited') }}: {{ formatNumber(props.overview?.business_limited_count ?? 0) }}
+        </div>
+      </div>
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-900/30">
+        <div class="text-[10px] font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errors') }}</div>
+        <div class="mt-2 flex items-center justify-between gap-3">
+          <div class="text-xs font-semibold text-gray-700 dark:text-gray-200">
+            {{ t('admin.ops.errorRate') }}: <span class="font-mono font-bold text-gray-900 dark:text-white">{{ errorRateLabel }}</span>
+          </div>
+          <div class="flex items-center gap-2">
+            <button
+              type="button"
+              class="inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 dark:border-dark-700 dark:bg-dark-800 dark:text-gray-300 dark:hover:bg-dark-700"
+              :disabled="props.loading"
+              @click="emit('openErrorDetails', 'request')"
+            >
+              {{ t('admin.ops.errorDetails.requestErrors') }}
+            </button>
+            <button
+              type="button"
+              class="inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 dark:border-dark-700 dark:bg-dark-800 dark:text-gray-300 dark:hover:bg-dark-700"
+              :disabled="props.loading"
+              @click="emit('openErrorDetails', 'upstream')"
+            >
+              {{ t('admin.ops.errorDetails.upstreamErrors') }}
+            </button>
+          </div>
+        </div>
+        <div class="mt-1 text-xs font-semibold text-gray-700 dark:text-gray-200">
+          {{ t('admin.ops.upstreamRate') }}: <span class="font-mono font-bold text-gray-900 dark:text-white">{{ upstreamErrorRateLabel }}</span>
+        </div>
+        <div class="mt-1 text-xs font-medium text-gray-500 dark:text-gray-400">
+          429: {{ formatNumber(props.overview?.upstream_429_count ?? 0) }} · 529:
+          {{ formatNumber(props.overview?.upstream_529_count ?? 0) }}
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/frontend/src/views/admin/ops/components/OpsDashboardSkeleton.vue b/frontend/src/views/admin/ops/components/OpsDashboardSkeleton.vue
new file mode 100644
index 00000000..5bbadd03
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsDashboardSkeleton.vue
@@ -0,0 +1,53 @@
+<template>
+  <div class="space-y-6">
+    <!-- Header -->
+    <div class="rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+      <div class="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
+        <div class="space-y-2">
+          <div class="h-5 w-48 animate-pulse rounded bg-gray-200 dark:bg-dark-700"></div>
+          <div class="h-4 w-72 animate-pulse rounded bg-gray-100 dark:bg-dark-700/70"></div>
+        </div>
+        <div class="flex items-center gap-3">
+          <div class="h-9 w-28 animate-pulse rounded-xl bg-gray-200 dark:bg-dark-700"></div>
+          <div class="h-9 w-28 animate-pulse rounded-xl bg-gray-200 dark:bg-dark-700"></div>
+        </div>
+      </div>
+
+      <div class="mt-6 grid grid-cols-2 gap-4 sm:grid-cols-4">
+        <div v-for="i in 4" :key="i" class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-900/30">
+          <div class="h-3 w-16 animate-pulse rounded bg-gray-200 dark:bg-dark-700"></div>
+          <div class="mt-3 h-6 w-24 animate-pulse rounded bg-gray-200 dark:bg-dark-700"></div>
+        </div>
+      </div>
+    </div>
+
+    <!-- Charts -->
+    <div class="grid grid-cols-1 gap-6 lg:grid-cols-2">
+      <div class="rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+        <div class="h-4 w-40 animate-pulse rounded bg-gray-200 dark:bg-dark-700"></div>
+        <div class="mt-6 h-64 animate-pulse rounded-2xl bg-gray-100 dark:bg-dark-700/70"></div>
+      </div>
+      <div class="rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+        <div class="h-4 w-40 animate-pulse rounded bg-gray-200 dark:bg-dark-700"></div>
+        <div class="mt-6 h-64 animate-pulse rounded-2xl bg-gray-100 dark:bg-dark-700/70"></div>
+      </div>
+    </div>
+
+    <!-- Cards -->
+    <div class="grid grid-cols-1 gap-6 lg:grid-cols-3">
+      <div
+        v-for="i in 3"
+        :key="i"
+        class="rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700"
+      >
+        <div class="h-4 w-36 animate-pulse rounded bg-gray-200 dark:bg-dark-700"></div>
+        <div class="mt-4 space-y-3">
+          <div class="h-3 w-2/3 animate-pulse rounded bg-gray-100 dark:bg-dark-700/70"></div>
+          <div class="h-3 w-1/2 animate-pulse rounded bg-gray-100 dark:bg-dark-700/70"></div>
+          <div class="h-3 w-3/5 animate-pulse rounded bg-gray-100 dark:bg-dark-700/70"></div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
diff --git a/frontend/src/views/admin/ops/components/OpsEmailNotificationCard.vue b/frontend/src/views/admin/ops/components/OpsEmailNotificationCard.vue
new file mode 100644
index 00000000..0204cbeb
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsEmailNotificationCard.vue
@@ -0,0 +1,441 @@
+<script setup lang="ts">
+import { ref, onMounted, computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useAppStore } from '@/stores/app'
+import { opsAPI } from '@/api/admin/ops'
+import type { EmailNotificationConfig, AlertSeverity } from '../types'
+import BaseDialog from '@/components/common/BaseDialog.vue'
+import Select from '@/components/common/Select.vue'
+
+const { t } = useI18n()
+const appStore = useAppStore()
+
+const loading = ref(false)
+const config = ref<EmailNotificationConfig | null>(null)
+
+const showEditor = ref(false)
+const saving = ref(false)
+const draft = ref<EmailNotificationConfig | null>(null)
+const alertRecipientInput = ref('')
+const reportRecipientInput = ref('')
+const alertRecipientError = ref('')
+const reportRecipientError = ref('')
+
+const severityOptions: Array<{ value: AlertSeverity | ''; label: string }> = [
+  { value: '', label: t('admin.ops.email.minSeverityAll') },
+  { value: 'critical', label: t('common.critical') },
+  { value: 'warning', label: t('common.warning') },
+  { value: 'info', label: t('common.info') }
+]
+
+async function loadConfig() {
+  loading.value = true
+  try {
+    const data = await opsAPI.getEmailNotificationConfig()
+    config.value = data
+  } catch (err: any) {
+    console.error('[OpsEmailNotificationCard] Failed to load config', err)
+    appStore.showError(err?.response?.data?.detail || t('admin.ops.email.loadFailed'))
+  } finally {
+    loading.value = false
+  }
+}
+
+async function saveConfig() {
+  if (!draft.value) return
+  if (!editorValidation.value.valid) {
+    appStore.showError(editorValidation.value.errors[0] || t('admin.ops.email.validation.invalid'))
+    return
+  }
+  saving.value = true
+  try {
+    config.value = await opsAPI.updateEmailNotificationConfig(draft.value)
+    showEditor.value = false
+    appStore.showSuccess(t('admin.ops.email.saveSuccess'))
+  } catch (err: any) {
+    console.error('[OpsEmailNotificationCard] Failed to save config', err)
+    appStore.showError(err?.response?.data?.detail || t('admin.ops.email.saveFailed'))
+  } finally {
+    saving.value = false
+  }
+}
+
+function openEditor() {
+  if (!config.value) return
+  draft.value = JSON.parse(JSON.stringify(config.value))
+  alertRecipientInput.value = ''
+  reportRecipientInput.value = ''
+  alertRecipientError.value = ''
+  reportRecipientError.value = ''
+  showEditor.value = true
+}
+
+function isValidEmailAddress(email: string): boolean {
+  return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)
+}
+
+function isNonNegativeNumber(value: unknown): boolean {
+  return typeof value === 'number' && Number.isFinite(value) && value >= 0
+}
+
+function validateCronField(enabled: boolean, cron: string): string | null {
+  if (!enabled) return null
+  if (!cron || !cron.trim()) return t('admin.ops.email.validation.cronRequired')
+  if (cron.trim().split(/\s+/).length < 5) return t('admin.ops.email.validation.cronFormat')
+  return null
+}
+
+const editorValidation = computed(() => {
+  const errors: string[] = []
+  if (!draft.value) return { valid: true, errors }
+
+  if (draft.value.alert.enabled && draft.value.alert.recipients.length === 0) {
+    errors.push(t('admin.ops.email.validation.alertRecipientsRequired'))
+  }
+  if (draft.value.report.enabled && draft.value.report.recipients.length === 0) {
+    errors.push(t('admin.ops.email.validation.reportRecipientsRequired'))
+  }
+
+  const invalidAlertRecipients = draft.value.alert.recipients.filter((e) => !isValidEmailAddress(e))
+  if (invalidAlertRecipients.length > 0) errors.push(t('admin.ops.email.validation.invalidRecipients'))
+
+  const invalidReportRecipients = draft.value.report.recipients.filter((e) => !isValidEmailAddress(e))
+  if (invalidReportRecipients.length > 0) errors.push(t('admin.ops.email.validation.invalidRecipients'))
+
+  if (!isNonNegativeNumber(draft.value.alert.rate_limit_per_hour)) {
+    errors.push(t('admin.ops.email.validation.rateLimitRange'))
+  }
+  if (
+    !isNonNegativeNumber(draft.value.alert.batching_window_seconds) ||
+    draft.value.alert.batching_window_seconds > 86400
+  ) {
+    errors.push(t('admin.ops.email.validation.batchWindowRange'))
+  }
+
+  const dailyErr = validateCronField(
+    draft.value.report.daily_summary_enabled,
+    draft.value.report.daily_summary_schedule
+  )
+  if (dailyErr) errors.push(dailyErr)
+  const weeklyErr = validateCronField(
+    draft.value.report.weekly_summary_enabled,
+    draft.value.report.weekly_summary_schedule
+  )
+  if (weeklyErr) errors.push(weeklyErr)
+  const digestErr = validateCronField(
+    draft.value.report.error_digest_enabled,
+    draft.value.report.error_digest_schedule
+  )
+  if (digestErr) errors.push(digestErr)
+  const accErr = validateCronField(
+    draft.value.report.account_health_enabled,
+    draft.value.report.account_health_schedule
+  )
+  if (accErr) errors.push(accErr)
+
+  if (!isNonNegativeNumber(draft.value.report.error_digest_min_count)) {
+    errors.push(t('admin.ops.email.validation.digestMinCountRange'))
+  }
+
+  const thr = draft.value.report.account_health_error_rate_threshold
+  if (!(typeof thr === 'number' && Number.isFinite(thr) && thr >= 0 && thr <= 100)) {
+    errors.push(t('admin.ops.email.validation.accountHealthThresholdRange'))
+  }
+
+  return { valid: errors.length === 0, errors }
+})
+
+function addRecipient(target: 'alert' | 'report') {
+  if (!draft.value) return
+  const raw = (target === 'alert' ? alertRecipientInput.value : reportRecipientInput.value).trim()
+  if (!raw) return
+
+  if (!isValidEmailAddress(raw)) {
+    const msg = t('common.invalidEmail')
+    if (target === 'alert') alertRecipientError.value = msg
+    else reportRecipientError.value = msg
+    return
+  }
+
+  const normalized = raw.toLowerCase()
+  const list = target === 'alert' ? draft.value.alert.recipients : draft.value.report.recipients
+  if (!list.includes(normalized)) {
+    list.push(normalized)
+  }
+  if (target === 'alert') alertRecipientInput.value = ''
+  else reportRecipientInput.value = ''
+  if (target === 'alert') alertRecipientError.value = ''
+  else reportRecipientError.value = ''
+}
+
+function removeRecipient(target: 'alert' | 'report', email: string) {
+  if (!draft.value) return
+  const list = target === 'alert' ? draft.value.alert.recipients : draft.value.report.recipients
+  const idx = list.indexOf(email)
+  if (idx >= 0) list.splice(idx, 1)
+}
+
+onMounted(() => {
+  loadConfig()
+})
+</script>
+
+<template>
+  <div class="rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <div class="mb-4 flex items-start justify-between gap-4">
+      <div>
+        <h3 class="text-sm font-bold text-gray-900 dark:text-white">{{ t('admin.ops.email.title') }}</h3>
+        <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.email.description') }}</p>
+      </div>
+      <div class="flex items-center gap-2">
+        <button
+          class="flex items-center gap-1.5 rounded-lg bg-gray-100 px-3 py-1.5 text-xs font-bold text-gray-700 transition-colors hover:bg-gray-200 disabled:cursor-not-allowed disabled:opacity-50 dark:bg-dark-700 dark:text-gray-300 dark:hover:bg-dark-600"
+          :disabled="loading"
+          @click="loadConfig"
+        >
+          <svg class="h-3.5 w-3.5" :class="{ 'animate-spin': loading }" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+          </svg>
+          {{ t('common.refresh') }}
+        </button>
+        <button class="btn btn-sm btn-secondary" :disabled="!config" @click="openEditor">{{ t('common.edit') }}</button>
+      </div>
+    </div>
+
+    <div v-if="!config" class="text-sm text-gray-500 dark:text-gray-400">
+      <span v-if="loading">{{ t('admin.ops.email.loading') }}</span>
+      <span v-else>{{ t('admin.ops.email.noData') }}</span>
+    </div>
+
+    <div v-else class="space-y-6">
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-700/50">
+        <h4 class="mb-2 text-sm font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.email.alertTitle') }}</h4>
+        <div class="grid grid-cols-1 gap-3 md:grid-cols-2">
+          <div class="text-xs text-gray-600 dark:text-gray-300">
+            {{ t('common.enabled') }}:
+            <span class="ml-1 font-medium text-gray-900 dark:text-white">
+              {{ config.alert.enabled ? t('common.enabled') : t('common.disabled') }}
+            </span>
+          </div>
+          <div class="text-xs text-gray-600 dark:text-gray-300">
+            {{ t('admin.ops.email.recipients') }}:
+            <span class="ml-1 font-medium text-gray-900 dark:text-white">{{ config.alert.recipients.length }}</span>
+          </div>
+          <div class="text-xs text-gray-600 dark:text-gray-300">
+            {{ t('admin.ops.email.minSeverity') }}:
+            <span class="ml-1 font-medium text-gray-900 dark:text-white">{{
+              config.alert.min_severity || t('admin.ops.email.minSeverityAll')
+            }}</span>
+          </div>
+          <div class="text-xs text-gray-600 dark:text-gray-300">
+            {{ t('admin.ops.email.rateLimitPerHour') }}:
+            <span class="ml-1 font-medium text-gray-900 dark:text-white">{{ config.alert.rate_limit_per_hour }}</span>
+          </div>
+        </div>
+      </div>
+
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-700/50">
+        <h4 class="mb-2 text-sm font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.email.reportTitle') }}</h4>
+        <div class="grid grid-cols-1 gap-3 md:grid-cols-2">
+          <div class="text-xs text-gray-600 dark:text-gray-300">
+            {{ t('common.enabled') }}:
+            <span class="ml-1 font-medium text-gray-900 dark:text-white">
+              {{ config.report.enabled ? t('common.enabled') : t('common.disabled') }}
+            </span>
+          </div>
+          <div class="text-xs text-gray-600 dark:text-gray-300">
+            {{ t('admin.ops.email.recipients') }}:
+            <span class="ml-1 font-medium text-gray-900 dark:text-white">{{ config.report.recipients.length }}</span>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <BaseDialog :show="showEditor" :title="t('admin.ops.email.title')" width="extra-wide" @close="showEditor = false">
+    <div v-if="draft" class="space-y-6">
+      <div
+        v-if="!editorValidation.valid"
+        class="rounded-lg border border-amber-200 bg-amber-50 p-3 text-xs text-amber-800 dark:border-amber-900/50 dark:bg-amber-900/20 dark:text-amber-200"
+      >
+        <div class="font-bold">{{ t('admin.ops.email.validation.title') }}</div>
+        <ul class="mt-1 list-disc space-y-1 pl-4">
+          <li v-for="msg in editorValidation.errors" :key="msg">{{ msg }}</li>
+        </ul>
+      </div>
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-700/50">
+        <h4 class="mb-3 text-sm font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.email.alertTitle') }}</h4>
+        <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('common.enabled') }}</div>
+            <label class="inline-flex items-center gap-2 text-sm text-gray-700 dark:text-gray-300">
+              <input v-model="draft.alert.enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+              <span>{{ draft.alert.enabled ? t('common.enabled') : t('common.disabled') }}</span>
+            </label>
+          </div>
+
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.minSeverity') }}</div>
+            <Select v-model="draft.alert.min_severity" :options="severityOptions" />
+          </div>
+
+          <div class="md:col-span-2">
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.recipients') }}</div>
+            <div class="flex gap-2">
+              <input
+                v-model="alertRecipientInput"
+                type="email"
+                class="input"
+                :placeholder="t('admin.ops.email.recipients')"
+                @keydown.enter.prevent="addRecipient('alert')"
+              />
+              <button class="btn btn-secondary whitespace-nowrap" type="button" @click="addRecipient('alert')">
+                {{ t('common.add') }}
+              </button>
+            </div>
+            <p v-if="alertRecipientError" class="mt-1 text-xs text-red-600 dark:text-red-400">{{ alertRecipientError }}</p>
+            <div class="mt-2 flex flex-wrap gap-2">
+              <span
+                v-for="email in draft.alert.recipients"
+                :key="email"
+                class="inline-flex items-center gap-2 rounded-full bg-blue-100 px-3 py-1 text-xs font-medium text-blue-700 dark:bg-blue-900/30 dark:text-blue-400"
+              >
+                {{ email }}
+                <button
+                  type="button"
+                  class="text-blue-700/80 hover:text-blue-900 dark:text-blue-300"
+                  @click="removeRecipient('alert', email)"
+                >
+                  ×
+                </button>
+              </span>
+            </div>
+            <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.email.recipientsHint') }}</div>
+          </div>
+
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.rateLimitPerHour') }}</div>
+            <input v-model.number="draft.alert.rate_limit_per_hour" type="number" min="0" max="100000" class="input" />
+          </div>
+
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.batchWindowSeconds') }}</div>
+            <input v-model.number="draft.alert.batching_window_seconds" type="number" min="0" max="86400" class="input" />
+          </div>
+
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.includeResolved') }}</div>
+            <label class="inline-flex items-center gap-2 text-sm text-gray-700 dark:text-gray-300">
+              <input v-model="draft.alert.include_resolved_alerts" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+              <span>{{ draft.alert.include_resolved_alerts ? t('common.enabled') : t('common.disabled') }}</span>
+            </label>
+          </div>
+        </div>
+      </div>
+
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-700/50">
+        <h4 class="mb-3 text-sm font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.email.reportTitle') }}</h4>
+        <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('common.enabled') }}</div>
+            <label class="inline-flex items-center gap-2 text-sm text-gray-700 dark:text-gray-300">
+              <input v-model="draft.report.enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+              <span>{{ draft.report.enabled ? t('common.enabled') : t('common.disabled') }}</span>
+            </label>
+          </div>
+
+          <div class="md:col-span-2">
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.recipients') }}</div>
+            <div class="flex gap-2">
+              <input
+                v-model="reportRecipientInput"
+                type="email"
+                class="input"
+                :placeholder="t('admin.ops.email.recipients')"
+                @keydown.enter.prevent="addRecipient('report')"
+              />
+              <button class="btn btn-secondary whitespace-nowrap" type="button" @click="addRecipient('report')">
+                {{ t('common.add') }}
+              </button>
+            </div>
+            <p v-if="reportRecipientError" class="mt-1 text-xs text-red-600 dark:text-red-400">{{ reportRecipientError }}</p>
+            <div class="mt-2 flex flex-wrap gap-2">
+              <span
+                v-for="email in draft.report.recipients"
+                :key="email"
+                class="inline-flex items-center gap-2 rounded-full bg-blue-100 px-3 py-1 text-xs font-medium text-blue-700 dark:bg-blue-900/30 dark:text-blue-400"
+              >
+                {{ email }}
+                <button
+                  type="button"
+                  class="text-blue-700/80 hover:text-blue-900 dark:text-blue-300"
+                  @click="removeRecipient('report', email)"
+                >
+                  ×
+                </button>
+              </span>
+            </div>
+          </div>
+
+          <div class="md:col-span-2">
+            <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
+              <div>
+                <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.dailySummary') }}</div>
+                <div class="flex items-center gap-2">
+                  <label class="inline-flex items-center gap-2 text-sm text-gray-700 dark:text-gray-300">
+                    <input v-model="draft.report.daily_summary_enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+                  </label>
+                  <input v-model="draft.report.daily_summary_schedule" type="text" class="input" :placeholder="t('admin.ops.email.cronPlaceholder')" />
+                </div>
+              </div>
+              <div>
+                <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.weeklySummary') }}</div>
+                <div class="flex items-center gap-2">
+                  <label class="inline-flex items-center gap-2 text-sm text-gray-700 dark:text-gray-300">
+                    <input v-model="draft.report.weekly_summary_enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+                  </label>
+                  <input v-model="draft.report.weekly_summary_schedule" type="text" class="input" :placeholder="t('admin.ops.email.cronPlaceholder')" />
+                </div>
+              </div>
+              <div>
+                <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.errorDigest') }}</div>
+                <div class="flex items-center gap-2">
+                  <label class="inline-flex items-center gap-2 text-sm text-gray-700 dark:text-gray-300">
+                    <input v-model="draft.report.error_digest_enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+                  </label>
+                  <input v-model="draft.report.error_digest_schedule" type="text" class="input" :placeholder="t('admin.ops.email.cronPlaceholder')" />
+                </div>
+              </div>
+              <div>
+                <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.errorDigestMinCount') }}</div>
+                <input v-model.number="draft.report.error_digest_min_count" type="number" min="0" max="1000000" class="input" />
+              </div>
+              <div>
+                <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.accountHealth') }}</div>
+                <div class="flex items-center gap-2">
+                  <label class="inline-flex items-center gap-2 text-sm text-gray-700 dark:text-gray-300">
+                    <input v-model="draft.report.account_health_enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+                  </label>
+                  <input v-model="draft.report.account_health_schedule" type="text" class="input" :placeholder="t('admin.ops.email.cronPlaceholder')" />
+                </div>
+              </div>
+              <div>
+                <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.email.accountHealthThreshold') }}</div>
+                <input v-model.number="draft.report.account_health_error_rate_threshold" type="number" min="0" max="100" step="0.1" class="input" />
+              </div>
+            </div>
+            <div class="mt-2 text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.email.reportHint') }}</div>
+          </div>
+        </div>
+      </div>
+    </div>
+    <template #footer>
+      <div class="flex justify-end gap-2">
+        <button class="btn btn-secondary" @click="showEditor = false">{{ t('common.cancel') }}</button>
+        <button class="btn btn-primary" :disabled="saving || !editorValidation.valid" @click="saveConfig">
+          {{ saving ? t('common.saving') : t('common.save') }}
+        </button>
+      </div>
+    </template>
+  </BaseDialog>
+</template>
diff --git a/frontend/src/views/admin/ops/components/OpsErrorDetailModal.vue b/frontend/src/views/admin/ops/components/OpsErrorDetailModal.vue
new file mode 100644
index 00000000..118a1f3a
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsErrorDetailModal.vue
@@ -0,0 +1,360 @@
+<template>
+  <BaseDialog :show="show" :title="title" width="full" :close-on-click-outside="true" @close="close">
+    <div v-if="loading" class="flex items-center justify-center py-16">
+      <div class="flex flex-col items-center gap-3">
+        <div class="h-8 w-8 animate-spin rounded-full border-b-2 border-primary-600"></div>
+        <div class="text-sm font-medium text-gray-500 dark:text-gray-400">{{ t('admin.ops.errorDetail.loading') }}</div>
+      </div>
+    </div>
+
+    <div v-else-if="!detail" class="py-10 text-center text-sm text-gray-500 dark:text-gray-400">
+      {{ emptyText }}
+    </div>
+
+    <div v-else class="space-y-6 p-6">
+      <!-- Top Summary -->
+      <div class="grid grid-cols-1 gap-4 sm:grid-cols-4">
+        <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
+          <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.requestId') }}</div>
+          <div class="mt-1 break-all font-mono text-sm font-medium text-gray-900 dark:text-white">
+            {{ detail.request_id || detail.client_request_id || '—' }}
+          </div>
+        </div>
+
+        <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
+          <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.time') }}</div>
+          <div class="mt-1 text-sm font-medium text-gray-900 dark:text-white">
+            {{ formatDateTime(detail.created_at) }}
+          </div>
+        </div>
+
+        <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
+          <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.phase') }}</div>
+          <div class="mt-1 text-sm font-bold uppercase text-gray-900 dark:text-white">
+            {{ detail.phase || '—' }}
+          </div>
+          <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+            {{ detail.type || '—' }}
+          </div>
+        </div>
+
+        <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
+          <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.status') }}</div>
+          <div class="mt-1 flex flex-wrap items-center gap-2">
+            <span :class="['inline-flex items-center rounded-lg px-2 py-1 text-xs font-black ring-1 ring-inset shadow-sm', statusClass]">
+              {{ detail.status_code }}
+            </span>
+            <span
+              v-if="detail.severity"
+              :class="['rounded-md px-2 py-0.5 text-[10px] font-black shadow-sm', severityClass]"
+            >
+              {{ detail.severity }}
+            </span>
+          </div>
+        </div>
+      </div>
+
+      <!-- Message -->
+      <div class="rounded-xl bg-gray-50 p-6 dark:bg-dark-900">
+        <h3 class="mb-4 text-sm font-black uppercase tracking-wider text-gray-900 dark:text-white">{{ t('admin.ops.errorDetail.message') }}</h3>
+        <div class="text-sm font-medium text-gray-800 dark:text-gray-200 break-words">
+          {{ detail.message || '—' }}
+        </div>
+      </div>
+
+      <!-- Basic Info -->
+      <div class="rounded-xl bg-gray-50 p-6 dark:bg-dark-900">
+        <h3 class="mb-4 text-sm font-black uppercase tracking-wider text-gray-900 dark:text-white">{{ t('admin.ops.errorDetail.basicInfo') }}</h3>
+        <div class="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-3">
+          <div>
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.platform') }}</div>
+            <div class="mt-1 text-sm font-medium text-gray-900 dark:text-white">{{ detail.platform || '—' }}</div>
+          </div>
+          <div>
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.model') }}</div>
+            <div class="mt-1 text-sm font-medium text-gray-900 dark:text-white">{{ detail.model || '—' }}</div>
+          </div>
+          <div>
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.latency') }}</div>
+            <div class="mt-1 font-mono text-sm font-bold text-gray-900 dark:text-white">
+              {{ detail.latency_ms != null ? `${detail.latency_ms}ms` : '—' }}
+            </div>
+          </div>
+          <div>
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.ttft') }}</div>
+            <div class="mt-1 font-mono text-sm font-bold text-gray-900 dark:text-white">
+              {{ detail.time_to_first_token_ms != null ? `${detail.time_to_first_token_ms}ms` : '—' }}
+            </div>
+          </div>
+          <div>
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.businessLimited') }}</div>
+            <div class="mt-1 text-sm font-medium text-gray-900 dark:text-white">
+              {{ detail.is_business_limited ? 'true' : 'false' }}
+            </div>
+          </div>
+          <div>
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.requestPath') }}</div>
+            <div class="mt-1 font-mono text-xs text-gray-700 dark:text-gray-200 break-all">
+              {{ detail.request_path || '—' }}
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- Timings (best-effort fields) -->
+      <div class="rounded-xl bg-gray-50 p-6 dark:bg-dark-900">
+        <h3 class="mb-4 text-sm font-black uppercase tracking-wider text-gray-900 dark:text-white">{{ t('admin.ops.errorDetail.timings') }}</h3>
+        <div class="grid grid-cols-1 gap-3 sm:grid-cols-2 lg:grid-cols-4">
+          <div class="rounded-lg bg-white p-4 shadow-sm dark:bg-dark-800">
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.auth') }}</div>
+            <div class="mt-1 font-mono text-sm font-bold text-gray-900 dark:text-white">
+              {{ detail.auth_latency_ms != null ? `${detail.auth_latency_ms}ms` : '—' }}
+            </div>
+          </div>
+          <div class="rounded-lg bg-white p-4 shadow-sm dark:bg-dark-800">
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.routing') }}</div>
+            <div class="mt-1 font-mono text-sm font-bold text-gray-900 dark:text-white">
+              {{ detail.routing_latency_ms != null ? `${detail.routing_latency_ms}ms` : '—' }}
+            </div>
+          </div>
+          <div class="rounded-lg bg-white p-4 shadow-sm dark:bg-dark-800">
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.upstream') }}</div>
+            <div class="mt-1 font-mono text-sm font-bold text-gray-900 dark:text-white">
+              {{ detail.upstream_latency_ms != null ? `${detail.upstream_latency_ms}ms` : '—' }}
+            </div>
+          </div>
+          <div class="rounded-lg bg-white p-4 shadow-sm dark:bg-dark-800">
+            <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.response') }}</div>
+            <div class="mt-1 font-mono text-sm font-bold text-gray-900 dark:text-white">
+              {{ detail.response_latency_ms != null ? `${detail.response_latency_ms}ms` : '—' }}
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- Retry -->
+      <div class="rounded-xl bg-gray-50 p-6 dark:bg-dark-900">
+        <div class="flex flex-col justify-between gap-4 md:flex-row md:items-start">
+          <div class="space-y-1">
+            <h3 class="text-sm font-black uppercase tracking-wider text-gray-900 dark:text-white">{{ t('admin.ops.errorDetail.retry') }}</h3>
+            <div class="text-xs text-gray-500 dark:text-gray-400">
+              {{ t('admin.ops.errorDetail.retryNote1') }}
+            </div>
+          </div>
+          <div class="flex flex-wrap gap-2">
+            <button type="button" class="btn btn-secondary btn-sm" :disabled="retrying" @click="openRetryConfirm('client')">
+              {{ t('admin.ops.errorDetail.retryClient') }}
+            </button>
+            <button
+              type="button"
+              class="btn btn-secondary btn-sm"
+              :disabled="retrying || !pinnedAccountId"
+              @click="openRetryConfirm('upstream')"
+              :title="pinnedAccountId ? '' : t('admin.ops.errorDetail.retryUpstreamHint')"
+            >
+              {{ t('admin.ops.errorDetail.retryUpstream') }}
+            </button>
+          </div>
+        </div>
+
+        <div class="mt-4 grid grid-cols-1 gap-4 md:grid-cols-3">
+          <div class="md:col-span-1">
+            <label class="mb-1 block text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.pinnedAccountId') }}</label>
+            <input v-model="pinnedAccountIdInput" type="text" class="input font-mono text-sm" :placeholder="t('admin.ops.errorDetail.pinnedAccountIdHint')" />
+            <div class="mt-1 text-xs text-gray-500 dark:text-gray-400">
+              {{ t('admin.ops.errorDetail.retryNote2') }}
+            </div>
+          </div>
+          <div class="md:col-span-2">
+            <div class="rounded-lg bg-white p-4 shadow-sm dark:bg-dark-800">
+              <div class="text-xs font-bold uppercase text-gray-400">{{ t('admin.ops.errorDetail.retryNotes') }}</div>
+              <ul class="mt-2 list-disc space-y-1 pl-5 text-xs text-gray-600 dark:text-gray-300">
+                <li>{{ t('admin.ops.errorDetail.retryNote3') }}</li>
+                <li>{{ t('admin.ops.errorDetail.retryNote4') }}</li>
+              </ul>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <!-- Request body -->
+      <div class="rounded-xl bg-gray-50 p-6 dark:bg-dark-900">
+        <div class="flex items-center justify-between">
+          <h3 class="text-sm font-black uppercase tracking-wider text-gray-900 dark:text-white">{{ t('admin.ops.errorDetail.requestBody') }}</h3>
+          <div
+            v-if="detail.request_body_truncated"
+            class="rounded-full bg-amber-100 px-2 py-0.5 text-xs font-medium text-amber-700 dark:bg-amber-900/30 dark:text-amber-300"
+          >
+            {{ t('admin.ops.errorDetail.trimmed') }}
+          </div>
+        </div>
+        <pre
+          class="mt-4 max-h-[420px] overflow-auto rounded-xl border border-gray-200 bg-white p-4 text-xs text-gray-800 dark:border-dark-700 dark:bg-dark-800 dark:text-gray-100"
+        ><code>{{ prettyJSON(detail.request_body) }}</code></pre>
+      </div>
+
+      <!-- Error body -->
+      <div class="rounded-xl bg-gray-50 p-6 dark:bg-dark-900">
+        <h3 class="text-sm font-black uppercase tracking-wider text-gray-900 dark:text-white">{{ t('admin.ops.errorDetail.errorBody') }}</h3>
+        <pre
+          class="mt-4 max-h-[420px] overflow-auto rounded-xl border border-gray-200 bg-white p-4 text-xs text-gray-800 dark:border-dark-700 dark:bg-dark-800 dark:text-gray-100"
+        ><code>{{ prettyJSON(detail.error_body) }}</code></pre>
+      </div>
+    </div>
+  </BaseDialog>
+
+  <ConfirmDialog
+    :show="showRetryConfirm"
+    :title="t('admin.ops.errorDetail.confirmRetry')"
+    :message="retryConfirmMessage"
+    @confirm="runConfirmedRetry"
+    @cancel="cancelRetry"
+  />
+</template>
+
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import BaseDialog from '@/components/common/BaseDialog.vue'
+import ConfirmDialog from '@/components/common/ConfirmDialog.vue'
+import { useAppStore } from '@/stores'
+import { opsAPI, type OpsErrorDetail, type OpsRetryMode } from '@/api/admin/ops'
+import { formatDateTime } from '@/utils/format'
+import { getSeverityClass } from '../utils/opsFormatters'
+
+interface Props {
+  show: boolean
+  errorId: number | null
+}
+
+interface Emits {
+  (e: 'update:show', value: boolean): void
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<Emits>()
+
+const { t } = useI18n()
+const appStore = useAppStore()
+
+const loading = ref(false)
+const detail = ref<OpsErrorDetail | null>(null)
+
+const retrying = ref(false)
+const showRetryConfirm = ref(false)
+const pendingRetryMode = ref<OpsRetryMode>('client')
+
+const pinnedAccountIdInput = ref('')
+const pinnedAccountId = computed<number | null>(() => {
+  const raw = String(pinnedAccountIdInput.value || '').trim()
+  if (!raw) return null
+  const n = Number.parseInt(raw, 10)
+  return Number.isFinite(n) && n > 0 ? n : null
+})
+
+const title = computed(() => {
+  if (!props.errorId) return 'Error Detail'
+  return `Error #${props.errorId}`
+})
+
+const emptyText = computed(() => 'No error selected.')
+
+function close() {
+  emit('update:show', false)
+}
+
+function prettyJSON(raw?: string): string {
+  if (!raw) return t('admin.ops.errorDetail.na')
+  try {
+    return JSON.stringify(JSON.parse(raw), null, 2)
+  } catch {
+    return raw
+  }
+}
+
+async function fetchDetail(id: number) {
+  loading.value = true
+  try {
+    const d = await opsAPI.getErrorLogDetail(id)
+    detail.value = d
+
+    // Default pinned account from error log if present.
+    if (d.account_id && d.account_id > 0) {
+      pinnedAccountIdInput.value = String(d.account_id)
+    } else {
+      pinnedAccountIdInput.value = ''
+    }
+  } catch (err: any) {
+    detail.value = null
+    appStore.showError(err?.message || 'Failed to load error detail')
+  } finally {
+    loading.value = false
+  }
+}
+
+watch(
+  () => [props.show, props.errorId] as const,
+  ([show, id]) => {
+    if (!show) {
+      detail.value = null
+      return
+    }
+    if (typeof id === 'number' && id > 0) {
+      fetchDetail(id)
+    }
+  },
+  { immediate: true }
+)
+
+function openRetryConfirm(mode: OpsRetryMode) {
+  pendingRetryMode.value = mode
+  showRetryConfirm.value = true
+}
+
+const retryConfirmMessage = computed(() => {
+  const mode = pendingRetryMode.value
+  if (mode === 'upstream') {
+    return t('admin.ops.errorDetail.confirmRetryMessage')
+  }
+  return t('admin.ops.errorDetail.confirmRetryHint')
+})
+
+const severityClass = computed(() => {
+  if (!detail.value?.severity) return 'bg-gray-100 text-gray-700 dark:bg-dark-700 dark:text-gray-300'
+  return getSeverityClass(detail.value.severity)
+})
+
+const statusClass = computed(() => {
+  const code = detail.value?.status_code ?? 0
+  if (code >= 500) return 'bg-red-50 text-red-700 ring-red-600/20 dark:bg-red-900/30 dark:text-red-400 dark:ring-red-500/30'
+  if (code === 429) return 'bg-purple-50 text-purple-700 ring-purple-600/20 dark:bg-purple-900/30 dark:text-purple-400 dark:ring-purple-500/30'
+  if (code >= 400) return 'bg-amber-50 text-amber-700 ring-amber-600/20 dark:bg-amber-900/30 dark:text-amber-400 dark:ring-amber-500/30'
+  return 'bg-gray-50 text-gray-700 ring-gray-600/20 dark:bg-gray-900/30 dark:text-gray-400 dark:ring-gray-500/30'
+})
+
+async function runConfirmedRetry() {
+  if (!props.errorId) return
+  const mode = pendingRetryMode.value
+  showRetryConfirm.value = false
+
+  retrying.value = true
+  try {
+    const req =
+      mode === 'upstream'
+        ? { mode, pinned_account_id: pinnedAccountId.value ?? undefined }
+        : { mode }
+
+    const res = await opsAPI.retryErrorRequest(props.errorId, req)
+    const summary = res.status === 'succeeded' ? t('admin.ops.errorDetail.retrySuccess') : t('admin.ops.errorDetail.retryFailed')
+    appStore.showSuccess(summary)
+  } catch (err: any) {
+    appStore.showError(err?.message || 'Retry failed')
+  } finally {
+    retrying.value = false
+  }
+}
+
+function cancelRetry() {
+  showRetryConfirm.value = false
+}
+</script>
diff --git a/frontend/src/views/admin/ops/components/OpsErrorDetailsModal.vue b/frontend/src/views/admin/ops/components/OpsErrorDetailsModal.vue
new file mode 100644
index 00000000..f4a522de
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsErrorDetailsModal.vue
@@ -0,0 +1,293 @@
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue'
+import { onKeyStroke } from '@vueuse/core'
+import { useI18n } from 'vue-i18n'
+import Select from '@/components/common/Select.vue'
+import OpsErrorLogTable from './OpsErrorLogTable.vue'
+import { opsAPI, type OpsErrorLog } from '@/api/admin/ops'
+
+interface Props {
+  show: boolean
+  timeRange: string
+  platform?: string
+  groupId?: number | null
+  errorType: 'request' | 'upstream'
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<{
+  (e: 'update:show', value: boolean): void
+  (e: 'openErrorDetail', errorId: number): void
+}>()
+
+const { t } = useI18n()
+
+const loading = ref(false)
+const rows = ref<OpsErrorLog[]>([])
+const total = ref(0)
+const page = ref(1)
+const pageSize = ref(50)
+
+const q = ref('')
+const statusCode = ref<number | null>(null)
+const phase = ref<string>('')
+const accountIdInput = ref<string>('')
+
+const accountId = computed<number | null>(() => {
+  const raw = String(accountIdInput.value || '').trim()
+  if (!raw) return null
+  const n = Number.parseInt(raw, 10)
+  return Number.isFinite(n) && n > 0 ? n : null
+})
+
+const modalTitle = computed(() => {
+  return props.errorType === 'upstream' ? t('admin.ops.errorDetails.upstreamErrors') : t('admin.ops.errorDetails.requestErrors')
+})
+
+const statusCodeSelectOptions = computed(() => {
+  const codes = [400, 401, 403, 404, 409, 422, 429, 500, 502, 503, 504, 529]
+  return [
+    { value: null, label: t('common.all') },
+    ...codes.map((c) => ({ value: c, label: String(c) }))
+  ]
+})
+
+const phaseSelectOptions = computed(() => {
+  const options = [
+    { value: '', label: t('common.all') },
+    { value: 'upstream', label: 'upstream' },
+    { value: 'network', label: 'network' },
+    { value: 'routing', label: 'routing' },
+    { value: 'auth', label: 'auth' },
+    { value: 'billing', label: 'billing' },
+    { value: 'concurrency', label: 'concurrency' },
+    { value: 'internal', label: 'internal' }
+  ]
+  return options
+})
+
+function close() {
+  emit('update:show', false)
+}
+
+onKeyStroke('Escape', () => {
+  if (props.show) close()
+})
+
+async function fetchErrorLogs() {
+  if (!props.show) return
+
+  loading.value = true
+  try {
+    const params: Record<string, any> = {
+      page: page.value,
+      page_size: pageSize.value,
+      time_range: props.timeRange
+    }
+
+    const platform = String(props.platform || '').trim()
+    if (platform) params.platform = platform
+    if (typeof props.groupId === 'number' && props.groupId > 0) params.group_id = props.groupId
+
+    if (q.value.trim()) params.q = q.value.trim()
+    if (typeof statusCode.value === 'number') params.status_codes = String(statusCode.value)
+    if (typeof accountId.value === 'number') params.account_id = accountId.value
+
+    const phaseVal = String(phase.value || '').trim()
+    if (phaseVal) params.phase = phaseVal
+
+    const res = await opsAPI.listErrorLogs(params)
+    rows.value = res.items || []
+    total.value = res.total || 0
+  } catch (err) {
+    console.error('[OpsErrorDetailsModal] Failed to fetch error logs', err)
+    rows.value = []
+    total.value = 0
+  } finally {
+    loading.value = false
+  }
+}
+
+function resetFilters() {
+  q.value = ''
+  statusCode.value = null
+  phase.value = props.errorType === 'upstream' ? 'upstream' : ''
+  accountIdInput.value = ''
+  page.value = 1
+  fetchErrorLogs()
+}
+
+watch(
+  () => props.show,
+  (open) => {
+    if (!open) return
+    page.value = 1
+    pageSize.value = 50
+    resetFilters()
+  }
+)
+
+watch(
+  () => [props.timeRange, props.platform, props.groupId] as const,
+  () => {
+    if (!props.show) return
+    page.value = 1
+    fetchErrorLogs()
+  }
+)
+
+watch(
+  () => [page.value, pageSize.value] as const,
+  () => {
+    if (!props.show) return
+    fetchErrorLogs()
+  }
+)
+
+let searchTimeout: number | null = null
+watch(
+  () => q.value,
+  () => {
+    if (!props.show) return
+    if (searchTimeout) window.clearTimeout(searchTimeout)
+    searchTimeout = window.setTimeout(() => {
+      page.value = 1
+      fetchErrorLogs()
+    }, 350)
+  }
+)
+
+watch(
+  () => [statusCode.value, phase.value] as const,
+  () => {
+    if (!props.show) return
+    page.value = 1
+    fetchErrorLogs()
+  }
+)
+
+watch(
+  () => accountId.value,
+  () => {
+    if (!props.show) return
+    page.value = 1
+    fetchErrorLogs()
+  }
+)
+</script>
+
+<template>
+  <Teleport to="body">
+    <Transition
+      enter-active-class="transition duration-300 ease-out"
+      enter-from-class="opacity-0"
+      enter-to-class="opacity-100"
+      leave-active-class="transition duration-200 ease-in"
+      leave-from-class="opacity-100"
+      leave-to-class="opacity-0"
+    >
+      <div v-if="show" class="fixed inset-0 z-50 flex items-center justify-center bg-black/50 backdrop-blur-sm px-4" @click.self="close">
+        <Transition
+          enter-active-class="transition duration-300 ease-out"
+          enter-from-class="opacity-0 scale-95"
+          enter-to-class="opacity-100 scale-100"
+          leave-active-class="transition duration-200 ease-in"
+          leave-from-class="opacity-100 scale-100"
+          leave-to-class="opacity-0 scale-95"
+        >
+          <div v-if="show" class="relative flex max-h-[90vh] w-full max-w-7xl flex-col overflow-hidden rounded-3xl bg-white shadow-2xl dark:bg-dark-800">
+            <!-- Header -->
+            <div class="flex items-center justify-between border-b border-gray-200 px-6 py-5 dark:border-dark-700">
+              <div class="flex items-center gap-3">
+                <div class="flex h-10 w-10 items-center justify-center rounded-2xl bg-orange-50 dark:bg-orange-900/20">
+                  <svg class="h-6 w-6 text-orange-500" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4m0 4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
+                  </svg>
+                </div>
+                <div>
+                  <h3 class="text-lg font-black text-gray-900 dark:text-white">{{ modalTitle }}</h3>
+                  <p class="text-xs font-medium text-gray-500 dark:text-gray-400">
+                    {{ t('admin.ops.errorDetails.total') }} {{ total }}
+                  </p>
+                </div>
+              </div>
+              <button
+                type="button"
+                class="flex h-8 w-8 items-center justify-center rounded-lg text-gray-400 hover:bg-gray-100 hover:text-gray-600 dark:hover:bg-dark-700"
+                @click="close"
+              >
+                <svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                  <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
+                </svg>
+              </button>
+            </div>
+
+            <!-- Filters -->
+            <div class="border-b border-gray-200 px-6 py-4 dark:border-dark-700">
+              <div class="grid grid-cols-1 gap-4 lg:grid-cols-12">
+                <div class="lg:col-span-5">
+                  <div class="relative group">
+                    <div class="pointer-events-none absolute inset-y-0 left-0 flex items-center pl-3.5">
+                      <svg
+                        class="h-4 w-4 text-gray-400 transition-colors group-focus-within:text-blue-500"
+                        fill="none"
+                        viewBox="0 0 24 24"
+                        stroke="currentColor"
+                      >
+                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2.5" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z" />
+                      </svg>
+                    </div>
+                    <input
+                      v-model="q"
+                      type="text"
+                      class="w-full rounded-2xl border-gray-200 bg-gray-50/50 py-2 pl-10 pr-4 text-sm font-medium text-gray-700 transition-all focus:border-blue-500 focus:bg-white focus:ring-4 focus:ring-blue-500/10 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300 dark:focus:bg-dark-800"
+                      :placeholder="t('admin.ops.errorDetails.searchPlaceholder')"
+                    />
+                  </div>
+                </div>
+
+                <div class="lg:col-span-2">
+                  <Select :model-value="statusCode" :options="statusCodeSelectOptions" class="w-full" @update:model-value="statusCode = $event as any" />
+                </div>
+
+                <div class="lg:col-span-2">
+                  <Select :model-value="phase" :options="phaseSelectOptions" class="w-full" @update:model-value="phase = String($event ?? '')" />
+                </div>
+
+                <div class="lg:col-span-2">
+                  <input
+                    v-model="accountIdInput"
+                    type="text"
+                    inputmode="numeric"
+                    class="input w-full text-sm"
+                    :placeholder="t('admin.ops.errorDetails.accountIdPlaceholder')"
+                  />
+                </div>
+
+                <div class="lg:col-span-1 flex items-center justify-end">
+                  <button type="button" class="btn btn-secondary btn-sm" @click="resetFilters">
+                    {{ t('common.reset') }}
+                  </button>
+                </div>
+              </div>
+            </div>
+
+            <!-- Body -->
+            <div class="min-h-0 flex-1 overflow-y-auto px-6 py-6">
+              <OpsErrorLogTable
+                :rows="rows"
+                :total="total"
+                :loading="loading"
+                :page="page"
+                :page-size="pageSize"
+                @openErrorDetail="emit('openErrorDetail', $event)"
+                @update:page="page = $event"
+                @update:pageSize="pageSize = $event"
+              />
+            </div>
+          </div>
+        </Transition>
+      </div>
+    </Transition>
+  </Teleport>
+</template>
diff --git a/frontend/src/views/admin/ops/components/OpsErrorDistributionChart.vue b/frontend/src/views/admin/ops/components/OpsErrorDistributionChart.vue
new file mode 100644
index 00000000..a52b5442
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsErrorDistributionChart.vue
@@ -0,0 +1,157 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { Chart as ChartJS, ArcElement, Legend, Tooltip } from 'chart.js'
+import { Doughnut } from 'vue-chartjs'
+import type { OpsErrorDistributionResponse } from '@/api/admin/ops'
+import type { ChartState } from '../types'
+import HelpTooltip from '@/components/common/HelpTooltip.vue'
+import EmptyState from '@/components/common/EmptyState.vue'
+
+ChartJS.register(ArcElement, Tooltip, Legend)
+
+interface Props {
+  data: OpsErrorDistributionResponse | null
+  loading: boolean
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<{
+  (e: 'openDetails'): void
+}>()
+const { t } = useI18n()
+
+const isDarkMode = computed(() => document.documentElement.classList.contains('dark'))
+const colors = computed(() => ({
+  blue: '#3b82f6',
+  red: '#ef4444',
+  orange: '#f59e0b',
+  gray: '#9ca3af',
+  text: isDarkMode.value ? '#9ca3af' : '#6b7280'
+}))
+
+const hasData = computed(() => (props.data?.total ?? 0) > 0)
+
+const state = computed<ChartState>(() => {
+  if (hasData.value) return 'ready'
+  if (props.loading) return 'loading'
+  return 'empty'
+})
+
+interface ErrorCategory {
+  label: string
+  count: number
+  color: string
+}
+
+const categories = computed<ErrorCategory[]>(() => {
+  if (!props.data) return []
+
+  let upstream = 0 // 502, 503, 504
+  let client = 0 // 4xx
+  let system = 0 // 500
+  let other = 0
+
+  for (const item of props.data.items || []) {
+    const code = Number(item.status_code || 0)
+    const count = Number(item.total || 0)
+    if (!Number.isFinite(code) || !Number.isFinite(count)) continue
+
+    if ([502, 503, 504].includes(code)) upstream += count
+    else if (code >= 400 && code < 500) client += count
+    else if (code === 500) system += count
+    else other += count
+  }
+
+  const out: ErrorCategory[] = []
+  if (upstream > 0) out.push({ label: t('admin.ops.upstream'), count: upstream, color: colors.value.orange })
+  if (client > 0) out.push({ label: t('admin.ops.client'), count: client, color: colors.value.blue })
+  if (system > 0) out.push({ label: t('admin.ops.system'), count: system, color: colors.value.red })
+  if (other > 0) out.push({ label: t('admin.ops.other'), count: other, color: colors.value.gray })
+  return out
+})
+
+const topReason = computed(() => {
+  if (categories.value.length === 0) return null
+  return categories.value.reduce((prev, cur) => (cur.count > prev.count ? cur : prev))
+})
+
+const chartData = computed(() => {
+  if (!hasData.value || categories.value.length === 0) return null
+  return {
+    labels: categories.value.map((c) => c.label),
+    datasets: [
+      {
+        data: categories.value.map((c) => c.count),
+        backgroundColor: categories.value.map((c) => c.color),
+        borderWidth: 0
+      }
+    ]
+  }
+})
+
+const options = computed(() => ({
+  responsive: true,
+  maintainAspectRatio: false,
+  plugins: {
+    legend: { display: false },
+    tooltip: {
+      backgroundColor: isDarkMode.value ? '#1f2937' : '#ffffff',
+      titleColor: isDarkMode.value ? '#f3f4f6' : '#111827',
+      bodyColor: isDarkMode.value ? '#d1d5db' : '#4b5563'
+    }
+  }
+}))
+</script>
+
+<template>
+  <div class="flex h-full flex-col rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <div class="mb-4 flex items-center justify-between">
+      <h3 class="flex items-center gap-2 text-sm font-bold text-gray-900 dark:text-white">
+        <svg class="h-4 w-4 text-red-500" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path
+            stroke-linecap="round"
+            stroke-linejoin="round"
+            stroke-width="2"
+            d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-3L13.732 4c-.77-1.333-2.694-1.333-3.464 0L3.34 16c-.77 1.333.192 3 1.732 3z"
+          />
+        </svg>
+        {{ t('admin.ops.errorDistribution') }}
+        <HelpTooltip :content="t('admin.ops.tooltips.errorDistribution')" />
+      </h3>
+      <button
+        type="button"
+        class="inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 disabled:opacity-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300 dark:hover:bg-dark-800"
+        :disabled="state !== 'ready'"
+        :title="t('admin.ops.errorTrend')"
+        @click="emit('openDetails')"
+      >
+        {{ t('admin.ops.requestDetails.details') }}
+      </button>
+    </div>
+
+    <div class="relative min-h-0 flex-1">
+      <div v-if="state === 'ready' && chartData" class="flex h-full flex-col">
+        <div class="flex-1">
+          <Doughnut :data="chartData" :options="{ ...options, cutout: '65%' }" />
+        </div>
+        <div class="mt-4 flex flex-col items-center gap-2">
+          <div v-if="topReason" class="text-xs font-bold text-gray-900 dark:text-white">
+            {{ t('admin.ops.top') }}: <span :style="{ color: topReason.color }">{{ topReason.label }}</span>
+          </div>
+          <div class="flex flex-wrap justify-center gap-3">
+            <div v-for="item in categories" :key="item.label" class="flex items-center gap-1.5 text-xs">
+              <span class="h-2 w-2 rounded-full" :style="{ backgroundColor: item.color }"></span>
+              <span class="text-gray-500 dark:text-gray-400">{{ item.count }}</span>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <div v-else class="flex h-full items-center justify-center">
+        <div v-if="state === 'loading'" class="animate-pulse text-sm text-gray-400">{{ t('common.loading') }}</div>
+        <EmptyState v-else :title="t('common.noData')" :description="t('admin.ops.charts.emptyError')" />
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/frontend/src/views/admin/ops/components/OpsErrorLogTable.vue b/frontend/src/views/admin/ops/components/OpsErrorLogTable.vue
new file mode 100644
index 00000000..6a4be1a7
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsErrorLogTable.vue
@@ -0,0 +1,238 @@
+<template>
+  <div>
+    <div v-if="loading" class="flex items-center justify-center py-10">
+      <div class="h-8 w-8 animate-spin rounded-full border-b-2 border-primary-600"></div>
+    </div>
+
+    <div v-else class="overflow-x-auto">
+      <table class="min-w-full divide-y divide-gray-200 dark:divide-dark-700">
+        <thead class="sticky top-0 z-10 bg-gray-50/50 dark:bg-dark-800/50">
+          <tr>
+            <th
+              scope="col"
+              class="whitespace-nowrap px-6 py-4 text-left text-xs font-bold uppercase tracking-wider text-gray-500 dark:text-dark-400"
+            >
+              {{ t('admin.ops.errorLog.timeId') }}
+            </th>
+            <th
+              scope="col"
+              class="whitespace-nowrap px-6 py-4 text-left text-xs font-bold uppercase tracking-wider text-gray-500 dark:text-dark-400"
+            >
+              {{ t('admin.ops.errorLog.context') }}
+            </th>
+            <th
+              scope="col"
+              class="whitespace-nowrap px-6 py-4 text-left text-xs font-bold uppercase tracking-wider text-gray-500 dark:text-dark-400"
+            >
+              {{ t('admin.ops.errorLog.status') }}
+            </th>
+            <th
+              scope="col"
+              class="px-6 py-4 text-left text-xs font-bold uppercase tracking-wider text-gray-500 dark:text-dark-400"
+            >
+              {{ t('admin.ops.errorLog.message') }}
+            </th>
+            <th
+              scope="col"
+              class="whitespace-nowrap px-6 py-4 text-right text-xs font-bold uppercase tracking-wider text-gray-500 dark:text-dark-400"
+            >
+              {{ t('admin.ops.errorLog.latency') }}
+            </th>
+            <th
+              scope="col"
+              class="whitespace-nowrap px-6 py-4 text-right text-xs font-bold uppercase tracking-wider text-gray-500 dark:text-dark-400"
+            >
+              {{ t('admin.ops.errorLog.action') }}
+            </th>
+          </tr>
+        </thead>
+        <tbody class="divide-y divide-gray-100 dark:divide-dark-700">
+          <tr v-if="rows.length === 0" class="bg-white dark:bg-dark-900">
+            <td colspan="6" class="py-16 text-center text-sm text-gray-400 dark:text-dark-500">
+              {{ t('admin.ops.errorLog.noErrors') }}
+            </td>
+          </tr>
+
+          <tr
+            v-for="log in rows"
+            :key="log.id"
+            class="group cursor-pointer transition-all duration-200 hover:bg-gray-50/80 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:ring-offset-2 dark:hover:bg-dark-800/50 dark:focus:ring-offset-dark-900"
+            tabindex="0"
+            role="button"
+            @click="emit('openErrorDetail', log.id)"
+            @keydown.enter.prevent="emit('openErrorDetail', log.id)"
+            @keydown.space.prevent="emit('openErrorDetail', log.id)"
+          >
+            <!-- Time & ID -->
+            <td class="px-6 py-4">
+              <div class="flex flex-col gap-0.5">
+                <span class="font-mono text-xs font-bold text-gray-900 dark:text-gray-200">
+                  {{ formatDateTime(log.created_at).split(' ')[1] }}
+                </span>
+                <span
+                  class="font-mono text-[10px] text-gray-400 transition-colors group-hover:text-primary-600 dark:group-hover:text-primary-400"
+                  :title="log.request_id || log.client_request_id"
+                >
+                  {{ (log.request_id || log.client_request_id || '').substring(0, 12) }}
+                </span>
+              </div>
+            </td>
+
+	            <!-- Context (Platform/Model) -->
+	            <td class="px-6 py-4">
+	              <div class="flex flex-col items-start gap-1.5">
+	                <span
+	                  class="inline-flex items-center rounded-md bg-gray-100 px-2 py-0.5 text-[10px] font-bold uppercase tracking-tight text-gray-600 dark:bg-dark-700 dark:text-gray-300"
+	                >
+	                  {{ log.platform || '-' }}
+	                </span>
+	                <span
+	                  v-if="log.model"
+	                  class="max-w-[160px] truncate font-mono text-[10px] text-gray-500 dark:text-dark-400"
+	                  :title="log.model"
+	                >
+	                  {{ log.model }}
+	                </span>
+	                <div
+	                  v-if="log.group_id || log.account_id"
+	                  class="flex flex-wrap items-center gap-2 font-mono text-[10px] font-semibold text-gray-400 dark:text-dark-500"
+	                >
+	                  <span v-if="log.group_id">{{ t('admin.ops.errorLog.grp') }} {{ log.group_id }}</span>
+	                  <span v-if="log.account_id">{{ t('admin.ops.errorLog.acc') }} {{ log.account_id }}</span>
+	                </div>
+	              </div>
+	            </td>
+
+            <!-- Status & Severity -->
+            <td class="px-6 py-4">
+              <div class="flex flex-wrap items-center gap-2">
+                <span
+                  :class="[
+                    'inline-flex items-center rounded-lg px-2 py-1 text-xs font-black ring-1 ring-inset shadow-sm',
+                    getStatusClass(log.status_code)
+                  ]"
+                >
+                  {{ log.status_code }}
+                </span>
+                <span
+                  v-if="log.severity"
+                  :class="['rounded-md px-2 py-0.5 text-[10px] font-black shadow-sm', getSeverityClass(log.severity)]"
+                >
+                  {{ log.severity }}
+                </span>
+              </div>
+            </td>
+
+            <!-- Message -->
+            <td class="px-6 py-4">
+              <div class="max-w-md lg:max-w-2xl">
+                <p class="truncate text-xs font-semibold text-gray-700 dark:text-gray-300" :title="log.message">
+                  {{ formatSmartMessage(log.message) || '-' }}
+                </p>
+                <div class="mt-1.5 flex flex-wrap gap-x-3 gap-y-1">
+                  <div v-if="log.phase" class="flex items-center gap-1">
+                    <span class="h-1 w-1 rounded-full bg-gray-300"></span>
+                    <span class="text-[9px] font-black uppercase tracking-tighter text-gray-400">{{ log.phase }}</span>
+                  </div>
+                  <div v-if="log.client_ip" class="flex items-center gap-1">
+                    <span class="h-1 w-1 rounded-full bg-gray-300"></span>
+                    <span class="text-[9px] font-mono font-bold text-gray-400">{{ log.client_ip }}</span>
+                  </div>
+                </div>
+              </div>
+            </td>
+
+            <!-- Latency -->
+            <td class="px-6 py-4 text-right">
+              <div class="flex flex-col items-end">
+                <span class="font-mono text-xs font-black" :class="getLatencyClass(log.latency_ms ?? null)">
+                  {{ log.latency_ms != null ? Math.round(log.latency_ms) + 'ms' : '--' }}
+                </span>
+              </div>
+            </td>
+
+            <!-- Actions -->
+            <td class="px-6 py-4 text-right" @click.stop>
+              <button type="button" class="btn btn-secondary btn-sm" @click="emit('openErrorDetail', log.id)">
+                {{ t('admin.ops.errorLog.details') }}
+              </button>
+            </td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+
+    <Pagination
+      v-if="total > 0"
+      :total="total"
+      :page="page"
+      :page-size="pageSize"
+      :page-size-options="[10, 20, 50, 100, 200, 500]"
+      @update:page="emit('update:page', $event)"
+      @update:pageSize="emit('update:pageSize', $event)"
+    />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { useI18n } from 'vue-i18n'
+import Pagination from '@/components/common/Pagination.vue'
+import type { OpsErrorLog } from '@/api/admin/ops'
+import { getSeverityClass, formatDateTime } from '../utils/opsFormatters'
+
+const { t } = useI18n()
+
+interface Props {
+  rows: OpsErrorLog[]
+  total: number
+  loading: boolean
+  page: number
+  pageSize: number
+}
+
+interface Emits {
+  (e: 'openErrorDetail', id: number): void
+  (e: 'update:page', value: number): void
+  (e: 'update:pageSize', value: number): void
+}
+
+defineProps<Props>()
+const emit = defineEmits<Emits>()
+
+function getStatusClass(code: number): string {
+  if (code >= 500) return 'bg-red-50 text-red-700 ring-red-600/20 dark:bg-red-900/30 dark:text-red-400 dark:ring-red-500/30'
+  if (code === 429) return 'bg-purple-50 text-purple-700 ring-purple-600/20 dark:bg-purple-900/30 dark:text-purple-400 dark:ring-purple-500/30'
+  if (code >= 400) return 'bg-amber-50 text-amber-700 ring-amber-600/20 dark:bg-amber-900/30 dark:text-amber-400 dark:ring-amber-500/30'
+  return 'bg-gray-50 text-gray-700 ring-gray-600/20 dark:bg-gray-900/30 dark:text-gray-400 dark:ring-gray-500/30'
+}
+
+function getLatencyClass(latency: number | null): string {
+  if (!latency) return 'text-gray-400'
+  if (latency > 10000) return 'text-red-600 font-black'
+  if (latency > 5000) return 'text-red-500 font-bold'
+  if (latency > 2000) return 'text-orange-500 font-medium'
+  return 'text-gray-600 dark:text-gray-400'
+}
+
+function formatSmartMessage(msg: string): string {
+  if (!msg) return ''
+
+  if (msg.startsWith('{') || msg.startsWith('[')) {
+    try {
+      const obj = JSON.parse(msg)
+      if (obj?.error?.message) return String(obj.error.message)
+      if (obj?.message) return String(obj.message)
+      if (obj?.detail) return String(obj.detail)
+      if (typeof obj === 'object') return JSON.stringify(obj).substring(0, 150)
+    } catch {
+      // ignore parse error
+    }
+  }
+
+  if (msg.includes('context deadline exceeded')) return 'context deadline exceeded'
+  if (msg.includes('connection refused')) return 'connection refused'
+  if (msg.toLowerCase().includes('rate limit')) return 'rate limit'
+
+  return msg.length > 200 ? msg.substring(0, 200) + '...' : msg
+}
+</script>
diff --git a/frontend/src/views/admin/ops/components/OpsErrorTrendChart.vue b/frontend/src/views/admin/ops/components/OpsErrorTrendChart.vue
new file mode 100644
index 00000000..032e1205
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsErrorTrendChart.vue
@@ -0,0 +1,185 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import {
+  Chart as ChartJS,
+  CategoryScale,
+  Filler,
+  Legend,
+  LineElement,
+  LinearScale,
+  PointElement,
+  Title,
+  Tooltip
+} from 'chart.js'
+import { Line } from 'vue-chartjs'
+import type { OpsErrorTrendPoint } from '@/api/admin/ops'
+import type { ChartState } from '../types'
+import { formatHistoryLabel, sumNumbers } from '../utils/opsFormatters'
+import HelpTooltip from '@/components/common/HelpTooltip.vue'
+import EmptyState from '@/components/common/EmptyState.vue'
+
+ChartJS.register(Title, Tooltip, Legend, LineElement, LinearScale, PointElement, CategoryScale, Filler)
+
+interface Props {
+  points: OpsErrorTrendPoint[]
+  loading: boolean
+  timeRange: string
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<{
+  (e: 'openRequestErrors'): void
+  (e: 'openUpstreamErrors'): void
+}>()
+const { t } = useI18n()
+
+const isDarkMode = computed(() => document.documentElement.classList.contains('dark'))
+const colors = computed(() => ({
+  red: '#ef4444',
+  redAlpha: '#ef444420',
+  purple: '#8b5cf6',
+  purpleAlpha: '#8b5cf620',
+  gray: '#9ca3af',
+  grid: isDarkMode.value ? '#374151' : '#f3f4f6',
+  text: isDarkMode.value ? '#9ca3af' : '#6b7280'
+}))
+
+const totalErrors = computed(() => sumNumbers(props.points.map((p) => p.error_count_sla ?? 0)))
+
+const chartData = computed(() => {
+  if (!props.points.length || totalErrors.value <= 0) return null
+  return {
+    labels: props.points.map((p) => formatHistoryLabel(p.bucket_start, props.timeRange)),
+    datasets: [
+      {
+        label: t('admin.ops.errorsSla'),
+        data: props.points.map((p) => p.error_count_sla ?? 0),
+        borderColor: colors.value.red,
+        backgroundColor: colors.value.redAlpha,
+        fill: true,
+        tension: 0.35,
+        pointRadius: 0,
+        pointHitRadius: 10
+      },
+      {
+        label: t('admin.ops.upstreamExcl429529'),
+        data: props.points.map((p) => p.upstream_error_count_excl_429_529 ?? 0),
+        borderColor: colors.value.purple,
+        backgroundColor: colors.value.purpleAlpha,
+        fill: true,
+        tension: 0.35,
+        pointRadius: 0,
+        pointHitRadius: 10
+      },
+      {
+        label: t('admin.ops.businessLimited'),
+        data: props.points.map((p) => p.business_limited_count ?? 0),
+        borderColor: colors.value.gray,
+        backgroundColor: 'transparent',
+        borderDash: [6, 6],
+        fill: false,
+        tension: 0.35,
+        pointRadius: 0,
+        pointHitRadius: 10
+      }
+    ]
+  }
+})
+
+const state = computed<ChartState>(() => {
+  if (chartData.value) return 'ready'
+  if (props.loading) return 'loading'
+  return 'empty'
+})
+
+const options = computed(() => {
+  const c = colors.value
+  return {
+    responsive: true,
+    maintainAspectRatio: false,
+    interaction: { intersect: false, mode: 'index' as const },
+    plugins: {
+      legend: {
+        position: 'top' as const,
+        align: 'end' as const,
+        labels: { color: c.text, usePointStyle: true, boxWidth: 6, font: { size: 10 } }
+      },
+      tooltip: {
+        backgroundColor: isDarkMode.value ? '#1f2937' : '#ffffff',
+        titleColor: isDarkMode.value ? '#f3f4f6' : '#111827',
+        bodyColor: isDarkMode.value ? '#d1d5db' : '#4b5563',
+        borderColor: c.grid,
+        borderWidth: 1,
+        padding: 10,
+        displayColors: true
+      }
+    },
+    scales: {
+      x: {
+        type: 'category' as const,
+        grid: { display: false },
+        ticks: {
+          color: c.text,
+          font: { size: 10 },
+          maxTicksLimit: 8,
+          autoSkip: true,
+          autoSkipPadding: 10
+        }
+      },
+      y: {
+        type: 'linear' as const,
+        display: true,
+        position: 'left' as const,
+        grid: { color: c.grid, borderDash: [4, 4] },
+        ticks: { color: c.text, font: { size: 10 }, precision: 0 }
+      }
+    }
+  }
+})
+</script>
+
+<template>
+  <div class="flex h-full flex-col rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <div class="mb-4 flex shrink-0 items-center justify-between">
+      <h3 class="flex items-center gap-2 text-sm font-bold text-gray-900 dark:text-white">
+        <svg class="h-4 w-4 text-rose-500" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path
+            stroke-linecap="round"
+            stroke-linejoin="round"
+            stroke-width="2"
+            d="M13 17h8m0 0V9m0 8l-8-8-4 4-6-6"
+          />
+        </svg>
+        {{ t('admin.ops.errorTrend') }}
+        <HelpTooltip :content="t('admin.ops.tooltips.errorTrend')" />
+      </h3>
+      <div class="flex items-center gap-2">
+        <button
+          type="button"
+          class="inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 disabled:opacity-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300 dark:hover:bg-dark-800"
+          :disabled="state !== 'ready'"
+          @click="emit('openRequestErrors')"
+        >
+          {{ t('admin.ops.errorDetails.requestErrors') }}
+        </button>
+        <button
+          type="button"
+          class="inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 disabled:opacity-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300 dark:hover:bg-dark-800"
+          :disabled="state !== 'ready'"
+          @click="emit('openUpstreamErrors')"
+        >
+          {{ t('admin.ops.errorDetails.upstreamErrors') }}
+        </button>
+      </div>
+    </div>
+
+    <div class="min-h-0 flex-1">
+      <Line v-if="state === 'ready' && chartData" :data="chartData" :options="options" />
+      <div v-else class="flex h-full items-center justify-center">
+        <div v-if="state === 'loading'" class="animate-pulse text-sm text-gray-400">{{ t('common.loading') }}</div>
+        <EmptyState v-else :title="t('common.noData')" :description="t('admin.ops.charts.emptyError')" />
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/frontend/src/views/admin/ops/components/OpsLatencyChart.vue b/frontend/src/views/admin/ops/components/OpsLatencyChart.vue
new file mode 100644
index 00000000..c62b3aa9
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsLatencyChart.vue
@@ -0,0 +1,101 @@
+<script setup lang="ts">
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { Chart as ChartJS, BarElement, CategoryScale, Legend, LinearScale, Tooltip } from 'chart.js'
+import { Bar } from 'vue-chartjs'
+import type { OpsLatencyHistogramResponse } from '@/api/admin/ops'
+import type { ChartState } from '../types'
+import HelpTooltip from '@/components/common/HelpTooltip.vue'
+import EmptyState from '@/components/common/EmptyState.vue'
+
+ChartJS.register(BarElement, CategoryScale, LinearScale, Tooltip, Legend)
+
+interface Props {
+  latencyData: OpsLatencyHistogramResponse | null
+  loading: boolean
+}
+
+const props = defineProps<Props>()
+const { t } = useI18n()
+
+const isDarkMode = computed(() => document.documentElement.classList.contains('dark'))
+const colors = computed(() => ({
+  blue: '#3b82f6',
+  grid: isDarkMode.value ? '#374151' : '#f3f4f6',
+  text: isDarkMode.value ? '#9ca3af' : '#6b7280'
+}))
+
+const hasData = computed(() => (props.latencyData?.total_requests ?? 0) > 0)
+
+const state = computed<ChartState>(() => {
+  if (hasData.value) return 'ready'
+  if (props.loading) return 'loading'
+  return 'empty'
+})
+
+const chartData = computed(() => {
+  if (!props.latencyData || !hasData.value) return null
+  const c = colors.value
+  return {
+    labels: props.latencyData.buckets.map((b) => b.range),
+    datasets: [
+      {
+        label: t('admin.ops.requests'),
+        data: props.latencyData.buckets.map((b) => b.count),
+        backgroundColor: c.blue,
+        borderRadius: 4,
+        barPercentage: 0.6
+      }
+    ]
+  }
+})
+
+const options = computed(() => {
+  const c = colors.value
+  return {
+    responsive: true,
+    maintainAspectRatio: false,
+    plugins: {
+      legend: { display: false }
+    },
+    scales: {
+      x: {
+        grid: { display: false },
+        ticks: { color: c.text, font: { size: 10 } }
+      },
+      y: {
+        beginAtZero: true,
+        grid: { color: c.grid, borderDash: [4, 4] },
+        ticks: { color: c.text, font: { size: 10 } }
+      }
+    }
+  }
+})
+</script>
+
+<template>
+  <div class="flex h-full flex-col rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <div class="mb-4 flex items-center justify-between">
+      <h3 class="flex items-center gap-2 text-sm font-bold text-gray-900 dark:text-white">
+        <svg class="h-4 w-4 text-purple-500" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path
+            stroke-linecap="round"
+            stroke-linejoin="round"
+            stroke-width="2"
+            d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"
+          />
+        </svg>
+        {{ t('admin.ops.latencyHistogram') }}
+        <HelpTooltip :content="t('admin.ops.tooltips.latencyHistogram')" />
+      </h3>
+    </div>
+
+    <div class="min-h-0 flex-1">
+      <Bar v-if="state === 'ready' && chartData" :data="chartData" :options="options" />
+      <div v-else class="flex h-full items-center justify-center">
+        <div v-if="state === 'loading'" class="animate-pulse text-sm text-gray-400">{{ t('common.loading') }}</div>
+        <EmptyState v-else :title="t('common.noData')" :description="t('admin.ops.charts.emptyRequest')" />
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/frontend/src/views/admin/ops/components/OpsRequestDetailsModal.vue b/frontend/src/views/admin/ops/components/OpsRequestDetailsModal.vue
new file mode 100644
index 00000000..541aa3ed
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsRequestDetailsModal.vue
@@ -0,0 +1,309 @@
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { onKeyStroke } from '@vueuse/core'
+import Pagination from '@/components/common/Pagination.vue'
+import { useClipboard } from '@/composables/useClipboard'
+import { useAppStore } from '@/stores'
+import { opsAPI, type OpsRequestDetailsParams, type OpsRequestDetail } from '@/api/admin/ops'
+import { parseTimeRangeMinutes, formatDateTime } from '../utils/opsFormatters'
+
+export interface OpsRequestDetailsPreset {
+  title: string
+  kind?: OpsRequestDetailsParams['kind']
+  sort?: OpsRequestDetailsParams['sort']
+  min_duration_ms?: number
+  max_duration_ms?: number
+}
+
+interface Props {
+  modelValue: boolean
+  timeRange: string
+  preset: OpsRequestDetailsPreset
+  platform?: string
+  groupId?: number | null
+}
+
+const props = defineProps<Props>()
+const emit = defineEmits<{
+  (e: 'update:modelValue', value: boolean): void
+  (e: 'openErrorDetail', errorId: number): void
+}>()
+
+const { t } = useI18n()
+const appStore = useAppStore()
+const { copyToClipboard } = useClipboard()
+
+const loading = ref(false)
+const items = ref<OpsRequestDetail[]>([])
+const total = ref(0)
+const page = ref(1)
+const pageSize = ref(50)
+
+const close = () => emit('update:modelValue', false)
+
+onKeyStroke('Escape', () => {
+  if (props.modelValue) close()
+})
+
+const handleOverlayClick = (e: MouseEvent) => {
+  if (e.target === e.currentTarget) close()
+}
+
+const rangeLabel = computed(() => {
+  const minutes = parseTimeRangeMinutes(props.timeRange)
+  if (minutes >= 60) return t('admin.ops.requestDetails.rangeHours', { n: Math.round(minutes / 60) })
+  return t('admin.ops.requestDetails.rangeMinutes', { n: minutes })
+})
+
+function buildTimeParams(): Pick<OpsRequestDetailsParams, 'start_time' | 'end_time'> {
+  const minutes = parseTimeRangeMinutes(props.timeRange)
+  const endTime = new Date()
+  const startTime = new Date(endTime.getTime() - minutes * 60 * 1000)
+  return {
+    start_time: startTime.toISOString(),
+    end_time: endTime.toISOString()
+  }
+}
+
+const fetchData = async () => {
+  if (!props.modelValue) return
+  loading.value = true
+  try {
+    const params: OpsRequestDetailsParams = {
+      ...buildTimeParams(),
+      page: page.value,
+      page_size: pageSize.value,
+      kind: props.preset.kind ?? 'all',
+      sort: props.preset.sort ?? 'created_at_desc'
+    }
+
+    const platform = (props.platform || '').trim()
+    if (platform) params.platform = platform
+    if (typeof props.groupId === 'number' && props.groupId > 0) params.group_id = props.groupId
+
+    if (typeof props.preset.min_duration_ms === 'number') params.min_duration_ms = props.preset.min_duration_ms
+    if (typeof props.preset.max_duration_ms === 'number') params.max_duration_ms = props.preset.max_duration_ms
+
+    const res = await opsAPI.listRequestDetails(params)
+    items.value = res.items || []
+    total.value = res.total || 0
+  } catch (e: any) {
+    console.error('[OpsRequestDetailsModal] Failed to fetch request details', e)
+    appStore.showError(e?.message || t('admin.ops.requestDetails.failedToLoad'))
+    items.value = []
+    total.value = 0
+  } finally {
+    loading.value = false
+  }
+}
+
+watch(
+  () => props.modelValue,
+  (open) => {
+    if (open) {
+      page.value = 1
+      fetchData()
+    }
+  }
+)
+
+watch(
+  () => [
+    props.timeRange,
+    props.platform,
+    props.groupId,
+    props.preset.kind,
+    props.preset.sort,
+    props.preset.min_duration_ms,
+    props.preset.max_duration_ms
+  ],
+  () => {
+    if (!props.modelValue) return
+    page.value = 1
+    fetchData()
+  }
+)
+
+function handlePageChange(next: number) {
+  page.value = next
+  fetchData()
+}
+
+function handlePageSizeChange(next: number) {
+  pageSize.value = next
+  page.value = 1
+  fetchData()
+}
+
+async function handleCopyRequestId(requestId: string) {
+  const ok = await copyToClipboard(requestId, t('admin.ops.requestDetails.requestIdCopied'))
+  if (ok) return
+  // `useClipboard` already shows toast on failure; this keeps UX consistent with older ops modal.
+  appStore.showWarning(t('admin.ops.requestDetails.copyFailed'))
+}
+
+function openErrorDetail(errorId: number | null | undefined) {
+  if (!errorId) return
+  close()
+  emit('openErrorDetail', errorId)
+}
+
+const kindBadgeClass = (kind: string) => {
+  if (kind === 'error') return 'bg-red-100 text-red-700 dark:bg-red-900/30 dark:text-red-300'
+  return 'bg-green-100 text-green-700 dark:bg-green-900/30 dark:text-green-300'
+}
+</script>
+
+<template>
+  <Teleport to="body">
+    <div v-if="modelValue" class="fixed inset-0 z-50 flex items-center justify-center bg-black/50 p-4" @click="handleOverlayClick">
+      <div class="relative max-h-[90vh] w-full max-w-5xl overflow-y-auto rounded-2xl bg-white shadow-2xl dark:bg-dark-800" @click.stop>
+        <!-- Header -->
+        <div class="sticky top-0 z-10 flex items-center justify-between border-b border-gray-200 bg-white px-6 py-4 dark:border-dark-700 dark:bg-dark-800">
+          <div>
+            <div class="text-sm font-bold text-gray-900 dark:text-white">
+              {{ props.preset.title || t('admin.ops.requestDetails.title') }}
+            </div>
+            <div class="mt-0.5 text-xs text-gray-500 dark:text-gray-400">
+              {{ t('admin.ops.requestDetails.rangeLabel', { range: rangeLabel }) }}
+            </div>
+          </div>
+          <div class="flex items-center gap-3">
+            <button
+              type="button"
+              class="rounded-lg border border-gray-200 bg-white px-3 py-1.5 text-xs font-bold text-gray-600 hover:bg-gray-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300 dark:hover:bg-dark-800"
+              @click="fetchData"
+            >
+              {{ t('common.refresh') }}
+            </button>
+            <button
+              type="button"
+              class="rounded-lg bg-gray-100 p-2 text-gray-600 hover:bg-gray-200 dark:bg-dark-700 dark:text-gray-200 dark:hover:bg-dark-600"
+              @click="close"
+              :title="t('common.close')"
+            >
+              <svg class="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="2">
+                <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
+              </svg>
+            </button>
+          </div>
+        </div>
+
+        <!-- Loading -->
+        <div v-if="loading" class="flex items-center justify-center py-16">
+          <div class="flex flex-col items-center gap-3">
+            <svg class="h-8 w-8 animate-spin text-blue-500" fill="none" viewBox="0 0 24 24">
+              <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+              <path
+                class="opacity-75"
+                fill="currentColor"
+                d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
+              ></path>
+            </svg>
+            <span class="text-sm font-medium text-gray-500 dark:text-gray-400">{{ t('common.loading') }}</span>
+          </div>
+        </div>
+
+        <!-- Table -->
+        <div v-else class="p-6">
+          <div v-if="items.length === 0" class="rounded-xl border border-dashed border-gray-200 p-10 text-center dark:border-dark-700">
+            <div class="text-sm font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.requestDetails.empty') }}</div>
+            <div class="mt-1 text-xs text-gray-400">{{ t('admin.ops.requestDetails.emptyHint') }}</div>
+          </div>
+
+          <div v-else class="overflow-hidden rounded-xl border border-gray-200 dark:border-dark-700">
+            <div class="overflow-x-auto">
+              <table class="min-w-full divide-y divide-gray-200 dark:divide-dark-700">
+                <thead class="bg-gray-50 dark:bg-dark-900">
+                  <tr>
+                    <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                      {{ t('admin.ops.requestDetails.table.time') }}
+                    </th>
+                    <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                      {{ t('admin.ops.requestDetails.table.kind') }}
+                    </th>
+                    <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                      {{ t('admin.ops.requestDetails.table.platform') }}
+                    </th>
+                    <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                      {{ t('admin.ops.requestDetails.table.model') }}
+                    </th>
+                    <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                      {{ t('admin.ops.requestDetails.table.duration') }}
+                    </th>
+                    <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                      {{ t('admin.ops.requestDetails.table.status') }}
+                    </th>
+                    <th class="px-4 py-3 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                      {{ t('admin.ops.requestDetails.table.requestId') }}
+                    </th>
+                    <th class="px-4 py-3 text-right text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:text-gray-400">
+                      {{ t('admin.ops.requestDetails.table.actions') }}
+                    </th>
+                  </tr>
+                </thead>
+                <tbody class="divide-y divide-gray-200 bg-white dark:divide-dark-700 dark:bg-dark-800">
+                  <tr v-for="(row, idx) in items" :key="idx" class="hover:bg-gray-50 dark:hover:bg-dark-700/50">
+                    <td class="whitespace-nowrap px-4 py-3 text-xs text-gray-600 dark:text-gray-300">
+                      {{ formatDateTime(row.created_at) }}
+                    </td>
+                    <td class="whitespace-nowrap px-4 py-3">
+                      <span class="rounded-full px-2 py-1 text-[10px] font-bold" :class="kindBadgeClass(row.kind)">
+                        {{ row.kind === 'error' ? t('admin.ops.requestDetails.kind.error') : t('admin.ops.requestDetails.kind.success') }}
+                      </span>
+                    </td>
+                    <td class="whitespace-nowrap px-4 py-3 text-xs font-medium text-gray-700 dark:text-gray-200">
+                      {{ (row.platform || 'unknown').toUpperCase() }}
+                    </td>
+                    <td class="max-w-[240px] truncate px-4 py-3 text-xs text-gray-600 dark:text-gray-300" :title="row.model || ''">
+                      {{ row.model || '-' }}
+                    </td>
+                    <td class="whitespace-nowrap px-4 py-3 text-xs text-gray-600 dark:text-gray-300">
+                      {{ typeof row.duration_ms === 'number' ? `${row.duration_ms} ms` : '-' }}
+                    </td>
+                    <td class="whitespace-nowrap px-4 py-3 text-xs text-gray-600 dark:text-gray-300">
+                      {{ row.status_code ?? '-' }}
+                    </td>
+                    <td class="px-4 py-3">
+                      <div v-if="row.request_id" class="flex items-center gap-2">
+                        <span class="max-w-[220px] truncate font-mono text-[11px] text-gray-700 dark:text-gray-200" :title="row.request_id">
+                          {{ row.request_id }}
+                        </span>
+                        <button
+                          class="rounded-md bg-gray-100 px-2 py-1 text-[10px] font-bold text-gray-600 hover:bg-gray-200 dark:bg-dark-700 dark:text-gray-300 dark:hover:bg-dark-600"
+                          @click="handleCopyRequestId(row.request_id)"
+                        >
+                          {{ t('admin.ops.requestDetails.copy') }}
+                        </button>
+                      </div>
+                      <span v-else class="text-xs text-gray-400">-</span>
+                    </td>
+                    <td class="whitespace-nowrap px-4 py-3 text-right">
+                      <button
+                        v-if="row.kind === 'error' && row.error_id"
+                        class="rounded-lg bg-red-50 px-3 py-1.5 text-xs font-bold text-red-600 hover:bg-red-100 dark:bg-red-900/20 dark:text-red-300 dark:hover:bg-red-900/30"
+                        @click="openErrorDetail(row.error_id)"
+                      >
+                        {{ t('admin.ops.requestDetails.viewError') }}
+                      </button>
+                      <span v-else class="text-xs text-gray-400">-</span>
+                    </td>
+                  </tr>
+                </tbody>
+              </table>
+            </div>
+
+            <Pagination
+              :total="total"
+              :page="page"
+              :page-size="pageSize"
+              @update:page="handlePageChange"
+              @update:pageSize="handlePageSizeChange"
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+  </Teleport>
+</template>
diff --git a/frontend/src/views/admin/ops/components/OpsRuntimeSettingsCard.vue b/frontend/src/views/admin/ops/components/OpsRuntimeSettingsCard.vue
new file mode 100644
index 00000000..e9df347d
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsRuntimeSettingsCard.vue
@@ -0,0 +1,439 @@
+<script setup lang="ts">
+import { computed, onMounted, ref } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useAppStore } from '@/stores/app'
+import { opsAPI } from '@/api/admin/ops'
+import type { OpsAlertRuntimeSettings } from '../types'
+import BaseDialog from '@/components/common/BaseDialog.vue'
+
+const { t } = useI18n()
+const appStore = useAppStore()
+
+const loading = ref(false)
+const saving = ref(false)
+
+const alertSettings = ref<OpsAlertRuntimeSettings | null>(null)
+
+const showAlertEditor = ref(false)
+const draftAlert = ref<OpsAlertRuntimeSettings | null>(null)
+
+type ValidationResult = { valid: boolean; errors: string[] }
+
+function normalizeSeverities(input: Array<string | null | undefined> | null | undefined): string[] {
+  if (!input || input.length === 0) return []
+  const allowed = new Set(['P0', 'P1', 'P2', 'P3'])
+  const out: string[] = []
+  const seen = new Set<string>()
+  for (const raw of input) {
+    const s = String(raw || '')
+      .trim()
+      .toUpperCase()
+    if (!s) continue
+    if (!allowed.has(s)) continue
+    if (seen.has(s)) continue
+    seen.add(s)
+    out.push(s)
+  }
+  return out
+}
+
+function validateRuntimeSettings(settings: OpsAlertRuntimeSettings): ValidationResult {
+  const errors: string[] = []
+
+  const evalSeconds = settings.evaluation_interval_seconds
+  if (!Number.isFinite(evalSeconds) || evalSeconds < 1 || evalSeconds > 86400) {
+    errors.push(t('admin.ops.runtime.validation.evalIntervalRange'))
+  }
+
+  const lock = settings.distributed_lock
+  if (lock?.enabled) {
+    if (!lock.key || lock.key.trim().length < 3) {
+      errors.push(t('admin.ops.runtime.validation.lockKeyRequired'))
+    } else if (!lock.key.startsWith('ops:')) {
+      errors.push(t('admin.ops.runtime.validation.lockKeyPrefix', { prefix: 'ops:' }))
+    }
+    if (!Number.isFinite(lock.ttl_seconds) || lock.ttl_seconds < 1 || lock.ttl_seconds > 86400) {
+      errors.push(t('admin.ops.runtime.validation.lockTtlRange'))
+    }
+  }
+
+  // Silencing validation (alert-only)
+  const silencing = settings.silencing
+  if (silencing?.enabled) {
+    const until = (silencing.global_until_rfc3339 || '').trim()
+    if (until) {
+      const parsed = Date.parse(until)
+      if (!Number.isFinite(parsed)) errors.push(t('admin.ops.runtime.silencing.validation.timeFormat'))
+    }
+
+    const entries = Array.isArray(silencing.entries) ? silencing.entries : []
+    for (let idx = 0; idx < entries.length; idx++) {
+      const entry = entries[idx]
+      const untilEntry = (entry?.until_rfc3339 || '').trim()
+      if (!untilEntry) {
+        errors.push(t('admin.ops.runtime.silencing.entries.validation.untilRequired'))
+        break
+      }
+      const parsedEntry = Date.parse(untilEntry)
+      if (!Number.isFinite(parsedEntry)) {
+        errors.push(t('admin.ops.runtime.silencing.entries.validation.untilFormat'))
+        break
+      }
+      const ruleId = (entry as any)?.rule_id
+      if (typeof ruleId === 'number' && (!Number.isFinite(ruleId) || ruleId <= 0)) {
+        errors.push(t('admin.ops.runtime.silencing.entries.validation.ruleIdPositive'))
+        break
+      }
+      if ((entry as any)?.severities) {
+        const raw = (entry as any).severities
+        const normalized = normalizeSeverities(Array.isArray(raw) ? raw : [raw])
+        if (Array.isArray(raw) && raw.length > 0 && normalized.length === 0) {
+          errors.push(t('admin.ops.runtime.silencing.entries.validation.severitiesFormat'))
+          break
+        }
+      }
+    }
+  }
+
+  return { valid: errors.length === 0, errors }
+}
+
+const alertValidation = computed(() => {
+  if (!draftAlert.value) return { valid: true, errors: [] as string[] }
+  return validateRuntimeSettings(draftAlert.value)
+})
+
+async function loadSettings() {
+  loading.value = true
+  try {
+    alertSettings.value = await opsAPI.getAlertRuntimeSettings()
+  } catch (err: any) {
+    console.error('[OpsRuntimeSettingsCard] Failed to load runtime settings', err)
+    appStore.showError(err?.response?.data?.detail || t('admin.ops.runtime.loadFailed'))
+  } finally {
+    loading.value = false
+  }
+}
+
+function openAlertEditor() {
+  if (!alertSettings.value) return
+  draftAlert.value = JSON.parse(JSON.stringify(alertSettings.value))
+
+  // Backwards-compat: ensure nested settings exist even if API payload is older.
+  if (draftAlert.value) {
+    if (!draftAlert.value.distributed_lock) {
+      draftAlert.value.distributed_lock = { enabled: true, key: 'ops:alert:evaluator:leader', ttl_seconds: 30 }
+    }
+    if (!draftAlert.value.silencing) {
+      draftAlert.value.silencing = { enabled: false, global_until_rfc3339: '', global_reason: '', entries: [] }
+    }
+    if (!Array.isArray(draftAlert.value.silencing.entries)) {
+      draftAlert.value.silencing.entries = []
+    }
+  }
+
+  showAlertEditor.value = true
+}
+
+function addSilenceEntry() {
+  if (!draftAlert.value) return
+  if (!draftAlert.value.silencing) {
+    draftAlert.value.silencing = { enabled: true, global_until_rfc3339: '', global_reason: '', entries: [] }
+  }
+  if (!Array.isArray(draftAlert.value.silencing.entries)) {
+    draftAlert.value.silencing.entries = []
+  }
+  draftAlert.value.silencing.entries.push({
+    rule_id: undefined,
+    severities: [],
+    until_rfc3339: '',
+    reason: ''
+  })
+}
+
+function removeSilenceEntry(index: number) {
+  if (!draftAlert.value?.silencing?.entries) return
+  draftAlert.value.silencing.entries.splice(index, 1)
+}
+
+function updateSilenceEntryRuleId(index: number, raw: string) {
+  const entries = draftAlert.value?.silencing?.entries
+  if (!entries || !entries[index]) return
+  const trimmed = raw.trim()
+  if (!trimmed) {
+    delete (entries[index] as any).rule_id
+    return
+  }
+  const n = Number.parseInt(trimmed, 10)
+  ;(entries[index] as any).rule_id = Number.isFinite(n) ? n : undefined
+}
+
+function updateSilenceEntrySeverities(index: number, raw: string) {
+  const entries = draftAlert.value?.silencing?.entries
+  if (!entries || !entries[index]) return
+  const parts = raw
+    .split(',')
+    .map((s) => s.trim())
+    .filter(Boolean)
+  ;(entries[index] as any).severities = normalizeSeverities(parts)
+}
+
+async function saveAlertSettings() {
+  if (!draftAlert.value) return
+  if (!alertValidation.value.valid) {
+    appStore.showError(alertValidation.value.errors[0] || t('admin.ops.runtime.validation.invalid'))
+    return
+  }
+
+  saving.value = true
+  try {
+    alertSettings.value = await opsAPI.updateAlertRuntimeSettings(draftAlert.value)
+    showAlertEditor.value = false
+    appStore.showSuccess(t('admin.ops.runtime.saveSuccess'))
+  } catch (err: any) {
+    console.error('[OpsRuntimeSettingsCard] Failed to save alert runtime settings', err)
+    appStore.showError(err?.response?.data?.detail || t('admin.ops.runtime.saveFailed'))
+  } finally {
+    saving.value = false
+  }
+}
+
+onMounted(() => {
+  loadSettings()
+})
+</script>
+
+<template>
+  <div class="rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <div class="mb-4 flex items-start justify-between gap-4">
+      <div>
+        <h3 class="text-sm font-bold text-gray-900 dark:text-white">{{ t('admin.ops.runtime.title') }}</h3>
+        <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.runtime.description') }}</p>
+      </div>
+      <button
+        class="flex items-center gap-1.5 rounded-lg bg-gray-100 px-3 py-1.5 text-xs font-bold text-gray-700 transition-colors hover:bg-gray-200 disabled:cursor-not-allowed disabled:opacity-50 dark:bg-dark-700 dark:text-gray-300 dark:hover:bg-dark-600"
+        :disabled="loading"
+        @click="loadSettings"
+      >
+        <svg class="h-3.5 w-3.5" :class="{ 'animate-spin': loading }" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15" />
+        </svg>
+        {{ t('common.refresh') }}
+      </button>
+    </div>
+
+    <div v-if="!alertSettings" class="text-sm text-gray-500 dark:text-gray-400">
+      <span v-if="loading">{{ t('admin.ops.runtime.loading') }}</span>
+      <span v-else>{{ t('admin.ops.runtime.noData') }}</span>
+    </div>
+
+    <div v-else class="space-y-6">
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-700/50">
+        <div class="mb-3 flex items-center justify-between">
+          <h4 class="text-sm font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.runtime.alertTitle') }}</h4>
+          <button class="btn btn-sm btn-secondary" @click="openAlertEditor">{{ t('common.edit') }}</button>
+        </div>
+        <div class="grid grid-cols-1 gap-3 md:grid-cols-2">
+          <div class="text-xs text-gray-600 dark:text-gray-300">
+            {{ t('admin.ops.runtime.evalIntervalSeconds') }}:
+            <span class="ml-1 font-medium text-gray-900 dark:text-white">{{ alertSettings.evaluation_interval_seconds }}s</span>
+          </div>
+          <div
+            v-if="alertSettings.silencing?.enabled && alertSettings.silencing.global_until_rfc3339"
+            class="text-xs text-gray-600 dark:text-gray-300 md:col-span-2"
+          >
+            {{ t('admin.ops.runtime.silencing.globalUntil') }}:
+            <span class="ml-1 font-mono text-gray-900 dark:text-white">{{ alertSettings.silencing.global_until_rfc3339 }}</span>
+          </div>
+
+          <details class="col-span-1 md:col-span-2">
+            <summary class="cursor-pointer text-xs font-medium text-blue-600 hover:text-blue-700 dark:text-blue-400">
+              {{ t('admin.ops.runtime.showAdvancedDeveloperSettings') }}
+            </summary>
+            <div class="mt-2 grid grid-cols-1 gap-3 rounded-lg bg-gray-100 p-3 dark:bg-dark-800 md:grid-cols-2">
+              <div class="text-xs text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.runtime.lockEnabled') }}:
+                <span class="ml-1 font-mono text-gray-700 dark:text-gray-300">{{ alertSettings.distributed_lock.enabled }}</span>
+              </div>
+              <div class="text-xs text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.runtime.lockKey') }}:
+                <span class="ml-1 font-mono text-gray-700 dark:text-gray-300">{{ alertSettings.distributed_lock.key }}</span>
+              </div>
+              <div class="text-xs text-gray-500 dark:text-gray-400">
+                {{ t('admin.ops.runtime.lockTTLSeconds') }}:
+                <span class="ml-1 font-mono text-gray-700 dark:text-gray-300">{{ alertSettings.distributed_lock.ttl_seconds }}s</span>
+              </div>
+            </div>
+          </details>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <BaseDialog :show="showAlertEditor" :title="t('admin.ops.runtime.alertTitle')" width="extra-wide" @close="showAlertEditor = false">
+    <div v-if="draftAlert" class="space-y-4">
+      <div
+        v-if="!alertValidation.valid"
+        class="rounded-lg border border-amber-200 bg-amber-50 p-3 text-xs text-amber-800 dark:border-amber-900/50 dark:bg-amber-900/20 dark:text-amber-200"
+      >
+        <div class="font-bold">{{ t('admin.ops.runtime.validation.title') }}</div>
+        <ul class="mt-1 list-disc space-y-1 pl-4">
+          <li v-for="msg in alertValidation.errors" :key="msg">{{ msg }}</li>
+        </ul>
+      </div>
+
+      <div>
+        <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.runtime.evalIntervalSeconds') }}</div>
+        <input
+          v-model.number="draftAlert.evaluation_interval_seconds"
+          type="number"
+          min="1"
+          max="86400"
+          class="input"
+          :aria-invalid="!alertValidation.valid"
+        />
+        <p class="mt-1 text-xs text-gray-500">{{ t('admin.ops.runtime.evalIntervalHint') }}</p>
+      </div>
+
+      <div class="rounded-2xl bg-gray-50 p-4 dark:bg-dark-700/50">
+        <div class="mb-2 text-sm font-semibold text-gray-900 dark:text-white">{{ t('admin.ops.runtime.silencing.title') }}</div>
+
+        <label class="inline-flex items-center gap-2 text-sm text-gray-700 dark:text-gray-300">
+          <input v-model="draftAlert.silencing.enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+          <span>{{ t('admin.ops.runtime.silencing.enabled') }}</span>
+        </label>
+
+        <div v-if="draftAlert.silencing.enabled" class="mt-4 space-y-4">
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.runtime.silencing.globalUntil') }}</div>
+            <input
+              v-model="draftAlert.silencing.global_until_rfc3339"
+              type="text"
+              class="input font-mono text-sm"
+              :placeholder="t('admin.ops.runtime.silencing.untilPlaceholder')"
+            />
+            <p class="mt-1 text-xs text-gray-500 dark:text-gray-400">{{ t('admin.ops.runtime.silencing.untilHint') }}</p>
+          </div>
+
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.runtime.silencing.reason') }}</div>
+            <input
+              v-model="draftAlert.silencing.global_reason"
+              type="text"
+              class="input"
+              :placeholder="t('admin.ops.runtime.silencing.reasonPlaceholder')"
+            />
+          </div>
+
+          <div class="rounded-xl border border-gray-200 bg-white p-4 dark:border-dark-700 dark:bg-dark-800">
+            <div class="flex items-start justify-between gap-4">
+              <div>
+                <div class="text-xs font-bold text-gray-900 dark:text-white">{{ t('admin.ops.runtime.silencing.entries.title') }}</div>
+                <p class="text-[11px] text-gray-500 dark:text-gray-400">{{ t('admin.ops.runtime.silencing.entries.hint') }}</p>
+              </div>
+              <button class="btn btn-sm btn-secondary" type="button" @click="addSilenceEntry">
+                {{ t('admin.ops.runtime.silencing.entries.add') }}
+              </button>
+            </div>
+
+            <div v-if="!draftAlert.silencing.entries?.length" class="mt-3 rounded-lg bg-gray-50 p-3 text-xs text-gray-500 dark:bg-dark-900 dark:text-gray-400">
+              {{ t('admin.ops.runtime.silencing.entries.empty') }}
+            </div>
+
+            <div v-else class="mt-4 space-y-4">
+              <div
+                v-for="(entry, idx) in draftAlert.silencing.entries"
+                :key="idx"
+                class="rounded-lg border border-gray-200 bg-gray-50 p-4 dark:border-dark-700 dark:bg-dark-900"
+              >
+                <div class="mb-3 flex items-center justify-between">
+                  <div class="text-xs font-bold text-gray-900 dark:text-white">
+                    {{ t('admin.ops.runtime.silencing.entries.entryTitle', { n: idx + 1 }) }}
+                  </div>
+                  <button class="btn btn-sm btn-danger" type="button" @click="removeSilenceEntry(idx)">{{ t('common.delete') }}</button>
+                </div>
+
+                <div class="grid grid-cols-1 gap-3 md:grid-cols-2">
+                  <div>
+                    <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.runtime.silencing.entries.ruleId') }}</div>
+                    <input
+                      :value="typeof (entry as any).rule_id === 'number' ? String((entry as any).rule_id) : ''"
+                      type="text"
+                      class="input font-mono text-sm"
+                      :placeholder="t('admin.ops.runtime.silencing.entries.ruleIdPlaceholder')"
+                      @input="updateSilenceEntryRuleId(idx, ($event.target as HTMLInputElement).value)"
+                    />
+                  </div>
+
+                  <div>
+                    <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.runtime.silencing.entries.severities') }}</div>
+                    <input
+                      :value="Array.isArray((entry as any).severities) ? (entry as any).severities.join(', ') : ''"
+                      type="text"
+                      class="input font-mono text-sm"
+                      :placeholder="t('admin.ops.runtime.silencing.entries.severitiesPlaceholder')"
+                      @input="updateSilenceEntrySeverities(idx, ($event.target as HTMLInputElement).value)"
+                    />
+                  </div>
+
+                  <div>
+                    <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.runtime.silencing.entries.until') }}</div>
+                    <input
+                      v-model="(entry as any).until_rfc3339"
+                      type="text"
+                      class="input font-mono text-sm"
+                      :placeholder="t('admin.ops.runtime.silencing.untilPlaceholder')"
+                    />
+                  </div>
+
+                  <div>
+                    <div class="mb-1 text-xs font-medium text-gray-600 dark:text-gray-300">{{ t('admin.ops.runtime.silencing.entries.reason') }}</div>
+                    <input
+                      v-model="(entry as any).reason"
+                      type="text"
+                      class="input"
+                      :placeholder="t('admin.ops.runtime.silencing.reasonPlaceholder')"
+                    />
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <details class="rounded-lg border border-gray-200 bg-gray-50 p-3 dark:border-dark-600 dark:bg-dark-800">
+        <summary class="cursor-pointer text-xs font-medium text-gray-600 dark:text-gray-400">{{ t('admin.ops.runtime.advancedSettingsSummary') }}</summary>
+        <div class="mt-3 grid grid-cols-1 gap-4 md:grid-cols-2">
+          <div>
+            <label class="inline-flex items-center gap-2 text-xs text-gray-700 dark:text-gray-300">
+              <input v-model="draftAlert.distributed_lock.enabled" type="checkbox" class="h-4 w-4 rounded border-gray-300" />
+              <span>{{ t('admin.ops.runtime.lockEnabled') }}</span>
+            </label>
+          </div>
+          <div class="md:col-span-2">
+            <div class="mb-1 text-xs font-medium text-gray-500">{{ t('admin.ops.runtime.lockKey') }}</div>
+            <input v-model="draftAlert.distributed_lock.key" type="text" class="input text-xs font-mono" />
+            <p v-if="draftAlert.distributed_lock.enabled" class="mt-1 text-[11px] text-gray-500 dark:text-gray-400">
+              {{ t('admin.ops.runtime.validation.lockKeyHint', { prefix: 'ops:' }) }}
+            </p>
+          </div>
+          <div>
+            <div class="mb-1 text-xs font-medium text-gray-500">{{ t('admin.ops.runtime.lockTTLSeconds') }}</div>
+            <input v-model.number="draftAlert.distributed_lock.ttl_seconds" type="number" min="1" max="86400" class="input text-xs font-mono" />
+          </div>
+        </div>
+      </details>
+    </div>
+
+    <template #footer>
+      <div class="flex justify-end gap-2">
+        <button class="btn btn-secondary" @click="showAlertEditor = false">{{ t('common.cancel') }}</button>
+        <button class="btn btn-primary" :disabled="saving || !alertValidation.valid" @click="saveAlertSettings">
+          {{ saving ? t('common.saving') : t('common.save') }}
+        </button>
+      </div>
+    </template>
+  </BaseDialog>
+</template>
+
diff --git a/frontend/src/views/admin/ops/components/OpsThroughputTrendChart.vue b/frontend/src/views/admin/ops/components/OpsThroughputTrendChart.vue
new file mode 100644
index 00000000..e3bd26c2
--- /dev/null
+++ b/frontend/src/views/admin/ops/components/OpsThroughputTrendChart.vue
@@ -0,0 +1,252 @@
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { Chart as ChartJS, CategoryScale, Filler, Legend, LineElement, LinearScale, PointElement, Title, Tooltip } from 'chart.js'
+import { Line } from 'vue-chartjs'
+import type { ChartComponentRef } from 'vue-chartjs'
+import type { OpsThroughputGroupBreakdownItem, OpsThroughputPlatformBreakdownItem, OpsThroughputTrendPoint } from '@/api/admin/ops'
+import type { ChartState } from '../types'
+import { formatHistoryLabel, sumNumbers } from '../utils/opsFormatters'
+import HelpTooltip from '@/components/common/HelpTooltip.vue'
+import EmptyState from '@/components/common/EmptyState.vue'
+import { formatNumber } from '@/utils/format'
+
+ChartJS.register(Title, Tooltip, Legend, LineElement, LinearScale, PointElement, CategoryScale, Filler)
+
+interface Props {
+  points: OpsThroughputTrendPoint[]
+  loading: boolean
+  timeRange: string
+  byPlatform?: OpsThroughputPlatformBreakdownItem[]
+  topGroups?: OpsThroughputGroupBreakdownItem[]
+}
+
+const props = defineProps<Props>()
+const { t } = useI18n()
+const emit = defineEmits<{
+  (e: 'selectPlatform', platform: string): void
+  (e: 'selectGroup', groupId: number): void
+  (e: 'openDetails'): void
+}>()
+
+const throughputChartRef = ref<ChartComponentRef | null>(null)
+watch(
+  () => props.timeRange,
+  () => {
+    setTimeout(() => {
+      const chart: any = throughputChartRef.value?.chart
+      if (chart && typeof chart.resetZoom === 'function') {
+        chart.resetZoom()
+      }
+    }, 100)
+  }
+)
+
+const isDarkMode = computed(() => document.documentElement.classList.contains('dark'))
+const colors = computed(() => ({
+  blue: '#3b82f6',
+  blueAlpha: '#3b82f620',
+  green: '#10b981',
+  greenAlpha: '#10b98120',
+  grid: isDarkMode.value ? '#374151' : '#f3f4f6',
+  text: isDarkMode.value ? '#9ca3af' : '#6b7280'
+}))
+
+const totalRequests = computed(() => sumNumbers(props.points.map((p) => p.request_count)))
+
+const chartData = computed(() => {
+  if (!props.points.length || totalRequests.value <= 0) return null
+  return {
+    labels: props.points.map((p) => formatHistoryLabel(p.bucket_start, props.timeRange)),
+    datasets: [
+      {
+        label: t('admin.ops.qps'),
+        data: props.points.map((p) => p.qps ?? 0),
+        borderColor: colors.value.blue,
+        backgroundColor: colors.value.blueAlpha,
+        fill: true,
+        tension: 0.4,
+        pointRadius: 0,
+        pointHitRadius: 10
+      },
+      {
+        label: t('admin.ops.tpsK'),
+        data: props.points.map((p) => (p.tps ?? 0) / 1000),
+        borderColor: colors.value.green,
+        backgroundColor: colors.value.greenAlpha,
+        fill: true,
+        tension: 0.4,
+        pointRadius: 0,
+        pointHitRadius: 10,
+        yAxisID: 'y1'
+      }
+    ]
+  }
+})
+
+const state = computed<ChartState>(() => {
+  if (chartData.value) return 'ready'
+  if (props.loading) return 'loading'
+  return 'empty'
+})
+
+const options = computed(() => {
+  const c = colors.value
+  return {
+    responsive: true,
+    maintainAspectRatio: false,
+    interaction: { intersect: false, mode: 'index' as const },
+    plugins: {
+      legend: {
+        position: 'top' as const,
+        align: 'end' as const,
+        labels: { color: c.text, usePointStyle: true, boxWidth: 6, font: { size: 10 } }
+      },
+      tooltip: {
+        backgroundColor: isDarkMode.value ? '#1f2937' : '#ffffff',
+        titleColor: isDarkMode.value ? '#f3f4f6' : '#111827',
+        bodyColor: isDarkMode.value ? '#d1d5db' : '#4b5563',
+        borderColor: c.grid,
+        borderWidth: 1,
+        padding: 10,
+        displayColors: true,
+        callbacks: {
+          label: (context: any) => {
+            let label = context.dataset.label || ''
+            if (label) label += ': '
+            if (context.raw !== null) label += context.parsed.y.toFixed(1)
+            return label
+          }
+        }
+      },
+      // Optional: if chartjs-plugin-zoom is installed, these options will enable zoom/pan.
+      zoom: {
+        pan: { enabled: true, mode: 'x' as const, modifierKey: 'ctrl' as const },
+        zoom: { wheel: { enabled: true }, pinch: { enabled: true }, mode: 'x' as const }
+      }
+    },
+    scales: {
+      x: {
+        type: 'category' as const,
+        grid: { display: false },
+        ticks: {
+          color: c.text,
+          font: { size: 10 },
+          maxTicksLimit: 8,
+          autoSkip: true,
+          autoSkipPadding: 10
+        }
+      },
+      y: {
+        type: 'linear' as const,
+        display: true,
+        position: 'left' as const,
+        grid: { color: c.grid, borderDash: [4, 4] },
+        ticks: { color: c.text, font: { size: 10 } }
+      },
+      y1: {
+        type: 'linear' as const,
+        display: true,
+        position: 'right' as const,
+        grid: { display: false },
+        ticks: { color: c.green, font: { size: 10 } }
+      }
+    }
+  }
+})
+
+function resetZoom() {
+  const chart: any = throughputChartRef.value?.chart
+  if (chart && typeof chart.resetZoom === 'function') chart.resetZoom()
+}
+
+function downloadChart() {
+  const chart: any = throughputChartRef.value?.chart
+  if (!chart || typeof chart.toBase64Image !== 'function') return
+  const url = chart.toBase64Image('image/png', 1)
+  const a = document.createElement('a')
+  a.href = url
+  a.download = `ops-throughput-${new Date().toISOString().slice(0, 19).replace(/[:T]/g, '-')}.png`
+  a.click()
+}
+</script>
+
+<template>
+  <div class="flex h-full flex-col rounded-3xl bg-white p-6 shadow-sm ring-1 ring-gray-900/5 dark:bg-dark-800 dark:ring-dark-700">
+    <div class="mb-4 flex shrink-0 items-center justify-between">
+      <h3 class="flex items-center gap-2 text-sm font-bold text-gray-900 dark:text-white">
+        <svg class="h-4 w-4 text-blue-500" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 7h8m0 0v8m0-8l-8 8-4-4-6 6" />
+        </svg>
+        {{ t('admin.ops.throughputTrend') }}
+        <HelpTooltip :content="t('admin.ops.tooltips.throughputTrend')" />
+      </h3>
+      <div class="flex items-center gap-2 text-xs text-gray-500 dark:text-gray-400">
+        <span class="flex items-center gap-1"><span class="h-2 w-2 rounded-full bg-blue-500"></span>{{ t('admin.ops.qps') }}</span>
+        <span class="flex items-center gap-1"><span class="h-2 w-2 rounded-full bg-green-500"></span>{{ t('admin.ops.tpsK') }}</span>
+        <button
+          type="button"
+          class="ml-2 inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 disabled:opacity-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300 dark:hover:bg-dark-800"
+          :disabled="state !== 'ready'"
+          :title="t('admin.ops.requestDetails.title')"
+          @click="emit('openDetails')"
+        >
+          {{ t('admin.ops.requestDetails.details') }}
+        </button>
+        <button
+          type="button"
+          class="ml-2 inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 disabled:opacity-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300 dark:hover:bg-dark-800"
+          :disabled="state !== 'ready'"
+          :title="t('admin.ops.charts.resetZoomHint')"
+          @click="resetZoom"
+        >
+          {{ t('admin.ops.charts.resetZoom') }}
+        </button>
+        <button
+          type="button"
+          class="inline-flex items-center rounded-lg border border-gray-200 bg-white px-2 py-1 text-[11px] font-semibold text-gray-600 hover:bg-gray-50 disabled:opacity-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-300 dark:hover:bg-dark-800"
+          :disabled="state !== 'ready'"
+          :title="t('admin.ops.charts.downloadChartHint')"
+          @click="downloadChart"
+        >
+          {{ t('admin.ops.charts.downloadChart') }}
+        </button>
+      </div>
+    </div>
+
+    <!-- Drilldown chips (baseline interaction: click to set global filter) -->
+    <div v-if="(props.topGroups?.length ?? 0) > 0" class="mb-3 flex flex-wrap gap-2">
+      <button
+        v-for="g in props.topGroups"
+        :key="g.group_id"
+        type="button"
+        class="inline-flex items-center gap-2 rounded-full border border-gray-200 bg-white px-3 py-1 text-[11px] font-semibold text-gray-700 hover:bg-gray-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-200 dark:hover:bg-dark-800"
+        @click="emit('selectGroup', g.group_id)"
+      >
+        <span class="max-w-[180px] truncate">{{ g.group_name || `#${g.group_id}` }}</span>
+        <span class="text-gray-400 dark:text-gray-500">{{ formatNumber(g.request_count) }}</span>
+      </button>
+    </div>
+
+    <div v-else-if="(props.byPlatform?.length ?? 0) > 0" class="mb-3 flex flex-wrap gap-2">
+      <button
+        v-for="p in props.byPlatform"
+        :key="p.platform"
+        type="button"
+        class="inline-flex items-center gap-2 rounded-full border border-gray-200 bg-white px-3 py-1 text-[11px] font-semibold text-gray-700 hover:bg-gray-50 dark:border-dark-700 dark:bg-dark-900 dark:text-gray-200 dark:hover:bg-dark-800"
+        @click="emit('selectPlatform', p.platform)"
+      >
+        <span class="uppercase">{{ p.platform }}</span>
+        <span class="text-gray-400 dark:text-gray-500">{{ formatNumber(p.request_count) }}</span>
+      </button>
+    </div>
+
+    <div class="min-h-0 flex-1">
+      <Line v-if="state === 'ready' && chartData" ref="throughputChartRef" :data="chartData" :options="options" />
+      <div v-else class="flex h-full items-center justify-center">
+        <div v-if="state === 'loading'" class="animate-pulse text-sm text-gray-400">{{ t('common.loading') }}</div>
+        <EmptyState v-else :title="t('common.noData')" :description="t('admin.ops.charts.emptyRequest')" />
+      </div>
+    </div>
+  </div>
+</template>
diff --git a/frontend/src/views/admin/ops/types.ts b/frontend/src/views/admin/ops/types.ts
new file mode 100644
index 00000000..08830542
--- /dev/null
+++ b/frontend/src/views/admin/ops/types.ts
@@ -0,0 +1,17 @@
+// Ops 前端视图层的共享类型（与后端 DTO 解耦）。
+
+export type ChartState = 'loading' | 'empty' | 'ready'
+
+// Re-export ops alert/settings types so view components can import from a single place
+// while keeping the API contract centralized in `@/api/admin/ops`.
+export type {
+  AlertRule,
+  AlertEvent,
+  AlertSeverity,
+  ThresholdMode,
+  MetricType,
+  Operator,
+  EmailNotificationConfig,
+  OpsDistributedLockSettings,
+  OpsAlertRuntimeSettings
+} from '@/api/admin/ops'
diff --git a/frontend/src/views/admin/ops/utils/opsFormatters.ts b/frontend/src/views/admin/ops/utils/opsFormatters.ts
new file mode 100644
index 00000000..d503b5a5
--- /dev/null
+++ b/frontend/src/views/admin/ops/utils/opsFormatters.ts
@@ -0,0 +1,75 @@
+/**
+ * Ops 页面共享的格式化/样式工具。
+ *
+ * 目标：尽量对齐 `docs/sub2api` 备份版本的视觉表现（需求一致部分保持一致），
+ * 同时避免引入额外 UI 依赖。
+ */
+
+import type { OpsSeverity } from '@/api/admin/ops'
+import { formatBytes } from '@/utils/format'
+
+export function getSeverityClass(severity: OpsSeverity): string {
+  const classes: Record<string, string> = {
+    P0: 'bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400',
+    P1: 'bg-orange-100 text-orange-800 dark:bg-orange-900/30 dark:text-orange-400',
+    P2: 'bg-yellow-100 text-yellow-800 dark:bg-yellow-900/30 dark:text-yellow-400',
+    P3: 'bg-blue-100 text-blue-800 dark:bg-blue-900/30 dark:text-blue-400'
+  }
+  return classes[String(severity || '')] || classes.P3
+}
+
+export function truncateMessage(msg: string, maxLength = 80): string {
+  if (!msg) return ''
+  return msg.length > maxLength ? msg.substring(0, maxLength) + '...' : msg
+}
+
+/**
+ * 格式化日期时间（短格式，和旧 Ops 页面一致）。
+ * 输出: `MM-DD HH:mm:ss`
+ */
+export function formatDateTime(dateStr: string): string {
+  const d = new Date(dateStr)
+  if (Number.isNaN(d.getTime())) return ''
+  return `${String(d.getMonth() + 1).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')} ${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}:${String(d.getSeconds()).padStart(2, '0')}`
+}
+
+export function sumNumbers(values: Array<number | null | undefined>): number {
+  return values.reduce<number>((acc, v) => {
+    const n = typeof v === 'number' && Number.isFinite(v) ? v : 0
+    return acc + n
+  }, 0)
+}
+
+/**
+ * 解析 time_range 为分钟数。
+ * 支持：`5m/30m/1h/6h/24h`
+ */
+export function parseTimeRangeMinutes(range: string): number {
+  const trimmed = (range || '').trim()
+  if (!trimmed) return 60
+  if (trimmed.endsWith('m')) {
+    const v = Number.parseInt(trimmed.slice(0, -1), 10)
+    return Number.isFinite(v) && v > 0 ? v : 60
+  }
+  if (trimmed.endsWith('h')) {
+    const v = Number.parseInt(trimmed.slice(0, -1), 10)
+    return Number.isFinite(v) && v > 0 ? v * 60 : 60
+  }
+  return 60
+}
+
+export function formatHistoryLabel(date: string | undefined, timeRange: string): string {
+  if (!date) return ''
+  const d = new Date(date)
+  if (Number.isNaN(d.getTime())) return ''
+  const minutes = parseTimeRangeMinutes(timeRange)
+  if (minutes >= 24 * 60) {
+    return `${String(d.getMonth() + 1).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')} ${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}`
+  }
+  return `${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}`
+}
+
+export function formatByteRate(bytes: number, windowMinutes: number): string {
+  const seconds = Math.max(1, (windowMinutes || 1) * 60)
+  return `${formatBytes(bytes / seconds, 1)}/s`
+}