diff --git a/frontend/src/components/analytics/RankBarList.vue b/frontend/src/components/analytics/RankBarList.vue
new file mode 100644
index 0000000..b15b4e4
--- /dev/null
+++ b/frontend/src/components/analytics/RankBarList.vue
@@ -0,0 +1,114 @@
+<script setup>
+import { computed } from 'vue'
+
+const props = defineProps({
+  items: { type: Array, required: true },
+  labelKey: { type: String, default: 'label' },
+  valueKey: { type: String, default: 'count' },
+  color: { type: String, default: '#126854' },
+  emptyText: { type: String, default: '暂无数据' },
+})
+
+const max = computed(() => {
+  let m = 0
+  for (const it of props.items) {
+    const v = Number(it[props.valueKey] || 0)
+    if (v > m) m = v
+  }
+  return Math.max(m, 1)
+})
+</script>
+
+<template>
+  <div class="rank-list">
+    <div v-if="!items.length" class="rank-empty">{{ emptyText }}</div>
+    <div v-else class="rank-rows">
+      <div v-for="(it, idx) in items" :key="idx" class="rank-row">
+        <div class="rank-index" :class="{ top3: idx < 3 }">{{ idx + 1 }}</div>
+        <div class="rank-body">
+          <div class="rank-label" :title="it[labelKey]">{{ it[labelKey] }}</div>
+          <div class="rank-bar-track">
+            <div
+              class="rank-bar-fill"
+              :style="{
+                width: ((Number(it[valueKey] || 0) / max) * 100).toFixed(1) + '%',
+                background: color,
+              }"
+            ></div>
+          </div>
+        </div>
+        <div class="rank-value">{{ it[valueKey] }}</div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.rank-list {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+.rank-empty {
+  padding: 40px 0;
+  text-align: center;
+  color: var(--muted);
+  font-size: 13px;
+}
+.rank-rows {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+.rank-row {
+  display: grid;
+  grid-template-columns: 28px 1fr 60px;
+  align-items: center;
+  gap: 10px;
+}
+.rank-index {
+  display: grid;
+  place-items: center;
+  height: 24px;
+  border-radius: 6px;
+  background: #eef2f0;
+  color: var(--muted);
+  font-size: 12px;
+  font-weight: 700;
+}
+.rank-index.top3 {
+  background: var(--brand-soft);
+  color: var(--brand);
+}
+.rank-body {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  min-width: 0;
+}
+.rank-label {
+  font-size: 13px;
+  color: var(--ink);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.rank-bar-track {
+  position: relative;
+  height: 6px;
+  border-radius: 999px;
+  background: #eef2f0;
+  overflow: hidden;
+}
+.rank-bar-fill {
+  height: 100%;
+  border-radius: 999px;
+  transition: width 0.3s ease;
+}
+.rank-value {
+  text-align: right;
+  font-weight: 700;
+  color: var(--ink);
+  font-size: 14px;
+}
+</style>
diff --git a/frontend/src/components/analytics/StatCard.vue b/frontend/src/components/analytics/StatCard.vue
new file mode 100644
index 0000000..6faf493
--- /dev/null
+++ b/frontend/src/components/analytics/StatCard.vue
@@ -0,0 +1,129 @@
+<script setup>
+defineProps({
+  label: { type: String, required: true },
+  value: { type: [String, Number], required: true },
+  unit: { type: String, default: '' },
+  hint: { type: String, default: '' },
+  trend: { type: Number, default: null },
+  subs: { type: Array, default: () => [] },
+})
+
+function trendClass(v) {
+  if (v == null) return 'trend flat'
+  if (v > 0) return 'trend up'
+  if (v < 0) return 'trend down'
+  return 'trend flat'
+}
+
+function trendArrow(v) {
+  if (v == null) return '—'
+  if (v > 0) return '↑'
+  if (v < 0) return '↓'
+  return '→'
+}
+</script>
+
+<template>
+  <div class="stat-card">
+    <div class="stat-label">
+      <span>{{ label }}</span>
+      <span v-if="hint" class="hint" :title="hint">?</span>
+    </div>
+    <div class="stat-value-row">
+      <div class="stat-value">
+        {{ value }}
+        <span v-if="unit" class="unit">{{ unit }}</span>
+      </div>
+      <div v-if="trend != null" :class="trendClass(trend)">
+        <span class="arrow">{{ trendArrow(trend) }}</span>
+        <span>环比 {{ Math.abs(trend).toFixed(1) }}%</span>
+      </div>
+    </div>
+    <div v-if="subs.length" class="stat-subs">
+      <div v-for="s in subs" :key="s.label" class="stat-sub">
+        <span class="sub-label">{{ s.label }}</span>
+        <span class="sub-value">{{ s.value }}<span v-if="s.unit" class="sub-unit">{{ s.unit }}</span></span>
+      </div>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.stat-card {
+  padding: 18px 20px;
+  background: #fff;
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  box-shadow: 0 4px 16px rgba(20, 33, 29, 0.04);
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+  min-height: 140px;
+}
+.stat-label {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  color: var(--muted);
+  font-size: 13px;
+}
+.hint {
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  border: 1px solid var(--line);
+  color: var(--muted);
+  font-size: 10px;
+  display: grid;
+  place-items: center;
+  cursor: help;
+}
+.stat-value-row {
+  display: flex;
+  align-items: baseline;
+  justify-content: space-between;
+  gap: 10px;
+}
+.stat-value {
+  font-size: 30px;
+  font-weight: 700;
+  color: var(--ink);
+  line-height: 1.1;
+}
+.stat-value .unit {
+  margin-left: 4px;
+  font-size: 14px;
+  font-weight: 500;
+  color: var(--muted);
+}
+.trend {
+  display: inline-flex;
+  align-items: center;
+  gap: 3px;
+  padding: 2px 8px;
+  border-radius: 999px;
+  font-size: 12px;
+  background: #f4f6f5;
+  color: var(--muted);
+}
+.trend.up   { color: #b64a45; background: rgba(182, 74, 69, 0.08); }
+.trend.down { color: #126854; background: rgba(18, 104, 84, 0.08); }
+.trend .arrow { font-weight: 800; }
+.stat-subs {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 6px 18px;
+  margin-top: auto;
+  padding-top: 4px;
+  border-top: 1px dashed var(--line);
+}
+.stat-sub {
+  display: inline-flex;
+  align-items: baseline;
+  gap: 6px;
+  font-size: 12px;
+}
+.sub-label { color: var(--muted); }
+.sub-value { color: var(--ink); font-weight: 600; }
+.sub-unit { margin-left: 2px; color: var(--muted); font-weight: 400; }
+</style>
diff --git a/frontend/src/components/analytics/TrendChart.vue b/frontend/src/components/analytics/TrendChart.vue
new file mode 100644
index 0000000..04f3ce8
--- /dev/null
+++ b/frontend/src/components/analytics/TrendChart.vue
@@ -0,0 +1,281 @@
+<script setup>
+import { computed, ref } from 'vue'
+
+const props = defineProps({
+  buckets: { type: Array, required: true },
+  series: {
+    type: Array,
+    required: true,
+  },
+  height: { type: Number, default: 260 },
+  yTicks: { type: Number, default: 4 },
+})
+
+const width = 900
+const marginTop = 12
+const marginRight = 12
+const marginBottom = 28
+const marginLeft = 40
+
+const plotHeight = computed(() => props.height - marginTop - marginBottom)
+const plotWidth = width - marginLeft - marginRight
+
+const maxValue = computed(() => {
+  let m = 0
+  for (const s of props.series) {
+    for (const label of s.field ? [s.field] : []) {
+      for (const b of props.buckets) {
+        const v = Number(b[label] || 0)
+        if (v > m) m = v
+      }
+    }
+  }
+  return Math.max(m, 1)
+})
+
+const niceMax = computed(() => {
+  const m = maxValue.value
+  if (m <= 1) return 1
+  const pow = Math.pow(10, Math.floor(Math.log10(m)))
+  const scaled = m / pow
+  const nice = scaled <= 1 ? 1 : scaled <= 2 ? 2 : scaled <= 5 ? 5 : 10
+  return nice * pow
+})
+
+const yAxisTicks = computed(() => {
+  const step = niceMax.value / props.yTicks
+  return Array.from({ length: props.yTicks + 1 }, (_, i) => {
+    const value = i * step
+    const y = marginTop + plotHeight.value - (value / niceMax.value) * plotHeight.value
+    return { value, y, label: formatShort(value) }
+  })
+})
+
+function formatShort(n) {
+  if (n >= 10000) return (n / 10000).toFixed(1).replace(/\.0$/, '') + 'w'
+  if (n >= 1000) return (n / 1000).toFixed(1).replace(/\.0$/, '') + 'k'
+  return String(Math.round(n))
+}
+
+const xPositions = computed(() => {
+  const n = props.buckets.length
+  if (n === 0) return []
+  if (n === 1) return [marginLeft + plotWidth / 2]
+  const step = plotWidth / (n - 1)
+  return props.buckets.map((_, i) => marginLeft + step * i)
+})
+
+const xTickLabels = computed(() => {
+  const n = props.buckets.length
+  if (n === 0) return []
+  const targetTicks = Math.min(n, 12)
+  const stride = Math.max(1, Math.ceil(n / targetTicks))
+  return props.buckets.map((b, i) => ({
+    x: xPositions.value[i],
+    label: b.bucket,
+    show: i % stride === 0 || i === n - 1,
+  }))
+})
+
+function buildPath(field) {
+  const parts = []
+  props.buckets.forEach((b, i) => {
+    const v = Number(b[field] || 0)
+    const x = xPositions.value[i]
+    const y = marginTop + plotHeight.value - (v / niceMax.value) * plotHeight.value
+    parts.push(`${i === 0 ? 'M' : 'L'}${x.toFixed(1)},${y.toFixed(1)}`)
+  })
+  return parts.join(' ')
+}
+
+function pointsForSeries(field) {
+  return props.buckets.map((b, i) => {
+    const v = Number(b[field] || 0)
+    const x = xPositions.value[i]
+    const y = marginTop + plotHeight.value - (v / niceMax.value) * plotHeight.value
+    return { x, y, value: v, label: b.bucket, i }
+  })
+}
+
+const hoverIndex = ref(-1)
+
+function onMove(evt) {
+  const svg = evt.currentTarget
+  const rect = svg.getBoundingClientRect()
+  const relX = ((evt.clientX - rect.left) / rect.width) * width
+  if (xPositions.value.length === 0) {
+    hoverIndex.value = -1
+    return
+  }
+  let best = 0
+  let bestDist = Infinity
+  xPositions.value.forEach((x, i) => {
+    const d = Math.abs(x - relX)
+    if (d < bestDist) { bestDist = d; best = i }
+  })
+  hoverIndex.value = best
+}
+
+function onLeave() {
+  hoverIndex.value = -1
+}
+
+const tooltip = computed(() => {
+  if (hoverIndex.value < 0 || hoverIndex.value >= props.buckets.length) return null
+  const b = props.buckets[hoverIndex.value]
+  const x = xPositions.value[hoverIndex.value]
+  return {
+    x,
+    label: b.bucket,
+    items: props.series.map((s) => ({ name: s.name, color: s.color, value: b[s.field] || 0 })),
+  }
+})
+</script>
+
+<template>
+  <div class="trend-chart">
+    <svg
+      :viewBox="`0 0 ${width} ${height}`"
+      preserveAspectRatio="none"
+      class="chart-svg"
+      @mousemove="onMove"
+      @mouseleave="onLeave"
+    >
+      <g class="grid">
+        <line
+          v-for="t in yAxisTicks"
+          :key="'g' + t.value"
+          :x1="marginLeft"
+          :x2="width - marginRight"
+          :y1="t.y"
+          :y2="t.y"
+          stroke="#e6ebe9"
+          stroke-dasharray="3 3"
+        />
+      </g>
+      <g class="y-axis" fill="#8a9691" font-size="11">
+        <text
+          v-for="t in yAxisTicks"
+          :key="'y' + t.value"
+          :x="marginLeft - 6"
+          :y="t.y + 3"
+          text-anchor="end"
+        >{{ t.label }}</text>
+      </g>
+      <g class="x-axis" fill="#8a9691" font-size="11">
+        <text
+          v-for="t in xTickLabels"
+          :key="'x' + t.x"
+          :x="t.x"
+          :y="height - 8"
+          text-anchor="middle"
+          v-show="t.show"
+        >{{ t.label }}</text>
+      </g>
+
+      <g v-for="s in series" :key="s.field">
+        <path :d="buildPath(s.field)" :stroke="s.color" fill="none" stroke-width="1.8" />
+        <g v-if="buckets.length <= 30">
+          <circle
+            v-for="p in pointsForSeries(s.field)"
+            :key="s.field + p.i"
+            :cx="p.x"
+            :cy="p.y"
+            r="2.5"
+            :fill="s.color"
+            :opacity="p.value > 0 ? 1 : 0.35"
+          />
+        </g>
+      </g>
+
+      <g v-if="tooltip">
+        <line
+          :x1="tooltip.x"
+          :x2="tooltip.x"
+          :y1="marginTop"
+          :y2="height - marginBottom"
+          stroke="#c9d4d0"
+          stroke-dasharray="2 3"
+        />
+      </g>
+    </svg>
+
+    <div v-if="tooltip" class="chart-tooltip" :style="{ left: `${(tooltip.x / width) * 100}%` }">
+      <div class="tt-title">{{ tooltip.label }}</div>
+      <div v-for="it in tooltip.items" :key="it.name" class="tt-item">
+        <span class="tt-dot" :style="{ background: it.color }"></span>
+        <span class="tt-name">{{ it.name }}</span>
+        <span class="tt-value">{{ it.value }}</span>
+      </div>
+    </div>
+
+    <div class="chart-legend">
+      <span v-for="s in series" :key="s.field" class="legend-item">
+        <span class="dot" :style="{ background: s.color }"></span>
+        <span>{{ s.name }}</span>
+      </span>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.trend-chart {
+  position: relative;
+  width: 100%;
+}
+.chart-svg {
+  display: block;
+  width: 100%;
+  height: v-bind(height + 'px');
+}
+.chart-legend {
+  display: flex;
+  gap: 20px;
+  justify-content: center;
+  padding-top: 6px;
+  color: var(--muted);
+  font-size: 12px;
+}
+.legend-item {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+.legend-item .dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  display: inline-block;
+}
+.chart-tooltip {
+  position: absolute;
+  top: 10px;
+  transform: translateX(-50%);
+  background: rgba(20, 33, 29, 0.9);
+  color: #fff;
+  padding: 8px 10px;
+  border-radius: 6px;
+  font-size: 12px;
+  pointer-events: none;
+  min-width: 120px;
+  box-shadow: 0 6px 16px rgba(20, 33, 29, 0.18);
+}
+.tt-title {
+  font-weight: 700;
+  margin-bottom: 4px;
+}
+.tt-item {
+  display: grid;
+  grid-template-columns: auto 1fr auto;
+  align-items: center;
+  gap: 6px;
+  padding: 1px 0;
+}
+.tt-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+}
+.tt-name { color: rgba(255,255,255,0.75); }
+.tt-value { font-weight: 700; }
+</style>
diff --git a/frontend/src/composables/useAnalytics.js b/frontend/src/composables/useAnalytics.js
new file mode 100644
index 0000000..e2dd894
--- /dev/null
+++ b/frontend/src/composables/useAnalytics.js
@@ -0,0 +1,74 @@
+import { ref } from 'vue'
+import { request } from '@/api/client'
+
+export const RANGE_OPTIONS = [
+  { code: '1h', label: '近1小时' },
+  { code: '12h', label: '近12小时' },
+  { code: '24h', label: '近24小时' },
+  { code: '7d', label: '近7天' },
+]
+
+function emptyBusiness() {
+  return {
+    range: null,
+    kpis: {
+      question_count: 0,
+      active_user_count: 0,
+      prev_active_user_count: 0,
+      user_delta_pct: null,
+      avg_questions_per_user: 0,
+      avg_latency_ms: 0,
+      success_count: 0,
+      success_ratio: 0,
+      fail_count: 0,
+      fail_ratio: 0,
+    },
+    trend: [],
+    top_questions: [],
+  }
+}
+
+function emptyResources() {
+  return {
+    range: null,
+    kpis: {
+      document_count: 0,
+      total_tokens: 0,
+      total_pu: 0,
+      api_call_count: 0,
+      api_success_ratio: 0,
+      avg_api_latency_ms: 0,
+    },
+    token_trend: [],
+    top_documents: [],
+  }
+}
+
+export function useAnalytics() {
+  const business = ref(emptyBusiness())
+  const resources = ref(emptyResources())
+  const loading = ref(false)
+  const error = ref('')
+
+  async function loadBusiness(rangeCode) {
+    business.value = await request(`/api/stats/dashboard/business?range=${encodeURIComponent(rangeCode)}`)
+  }
+
+  async function loadResources(rangeCode) {
+    resources.value = await request(`/api/stats/dashboard/resources?range=${encodeURIComponent(rangeCode)}`)
+  }
+
+  async function loadAll(rangeCode) {
+    loading.value = true
+    error.value = ''
+    try {
+      await Promise.all([loadBusiness(rangeCode), loadResources(rangeCode)])
+    } catch (err) {
+      error.value = err?.message || String(err)
+    } finally {
+      loading.value = false
+    }
+  }
+
+  return { business, resources, loading, error, loadAll, loadBusiness, loadResources }
+}
diff --git a/frontend/src/router/index.js b/frontend/src/router/index.js
index a1982c1..574b446 100644
--- a/frontend/src/router/index.js
+++ b/frontend/src/router/index.js
@@ -42,7 +42,7 @@ const routes = [
   {
     path: '/analytics',
     name: 'analytics',
-    component: () => import('@/views/PlaceholderView.vue'),
+    component: () => import('@/views/AnalyticsView.vue'),
     meta: {
       title: '数据分析',
       subtitle: '使用量、热门问题、命中率等数据看板。',
diff --git a/frontend/src/views/AnalyticsView.vue b/frontend/src/views/AnalyticsView.vue
new file mode 100644
index 0000000..bd0842e
--- /dev/null
+++ b/frontend/src/views/AnalyticsView.vue
@@ -0,0 +1,403 @@
+<script setup>
+import { computed, onMounted, ref, watch } from 'vue'
+import { useAppStore } from '@/stores/app'
+import { RANGE_OPTIONS, useAnalytics } from '@/composables/useAnalytics'
+import StatCard from '@/components/analytics/StatCard.vue'
+import TrendChart from '@/components/analytics/TrendChart.vue'
+import RankBarList from '@/components/analytics/RankBarList.vue'
+
+const store = useAppStore()
+const { business, resources, loading, error, loadAll } = useAnalytics()
+
+const activeTab = ref('business')
+const activeRange = ref('24h')
+
+const businessSeries = [
+  { field: 'asked', name: '问答次数', color: '#126854' },
+  { field: 'success', name: '成功次数', color: '#4c9f8a' },
+  { field: 'failed', name: '失败次数', color: '#b64a45' },
+]
+
+const tokenSeries = [
+  { field: 'tokens', name: 'Tokens 消耗', color: '#1c7f9e' },
+  { field: 'pu', name: 'PU 消耗', color: '#b56a1a' },
+]
+
+async function reload() {
+  try {
+    await loadAll(activeRange.value)
+  } catch (err) {
+    store.toast(err.message, 'error')
+  }
+}
+
+function pickRange(code) {
+  if (activeRange.value === code) return
+  activeRange.value = code
+  reload()
+}
+
+const businessKpis = computed(() => business.value.kpis)
+const resourceKpis = computed(() => resources.value.kpis)
+const rangeLabel = computed(() =>
+  RANGE_OPTIONS.find((r) => r.code === activeRange.value)?.label || activeRange.value,
+)
+
+const trendKpis = computed(() => ({
+  asked: businessKpis.value.question_count,
+  success: businessKpis.value.success_count,
+  successPct: businessKpis.value.success_ratio,
+  failed: businessKpis.value.fail_count,
+  failedPct: businessKpis.value.fail_ratio,
+}))
+
+onMounted(() => {
+  if (store.token) reload()
+})
+
+watch(() => store.token, (val) => {
+  if (val) reload()
+})
+</script>
+
+<template>
+  <section class="view is-visible analytics-view">
+    <div class="analytics-header">
+      <div>
+        <h2>数据报表</h2>
+        <p>基于问答日志和 ADP 调用留痕的实时业务与资源指标。</p>
+      </div>
+      <div class="tabs">
+        <button
+          type="button"
+          class="tab"
+          :class="{ active: activeTab === 'business' }"
+          @click="activeTab = 'business'"
+        >业务看板</button>
+        <button
+          type="button"
+          class="tab"
+          :class="{ active: activeTab === 'resources' }"
+          @click="activeTab = 'resources'"
+        >资源看板</button>
+      </div>
+    </div>
+
+    <div class="toolbar">
+      <div class="range-group">
+        <button
+          v-for="opt in RANGE_OPTIONS"
+          :key="opt.code"
+          type="button"
+          class="range-btn"
+          :class="{ active: activeRange === opt.code }"
+          @click="pickRange(opt.code)"
+        >{{ opt.label }}</button>
+      </div>
+      <div class="toolbar-right">
+        <span v-if="loading" class="loading-tag">加载中…</span>
+        <span v-else-if="error" class="error-tag" :title="error">加载失败</span>
+        <button type="button" class="icon-btn" title="刷新" @click="reload">↻</button>
+      </div>
+    </div>
+
+    <div class="analytics-body">
+      <template v-if="activeTab === 'business'">
+        <div class="kpi-row">
+          <StatCard
+            label="问答总次数"
+            :value="businessKpis.question_count"
+            hint="当前时间窗口内的用户提问总数"
+            :subs="[
+              { label: '成功', value: businessKpis.success_count },
+              { label: '失败', value: businessKpis.fail_count },
+            ]"
+          />
+          <StatCard
+            label="活跃用户数"
+            :value="businessKpis.active_user_count"
+            :trend="businessKpis.user_delta_pct"
+            hint="至少提出过一次问答的独立用户数"
+            :subs="[
+              { label: '人均问答次数', value: businessKpis.avg_questions_per_user },
+              { label: '上一时段', value: businessKpis.prev_active_user_count },
+            ]"
+          />
+          <StatCard
+            label="平均响应时长"
+            :value="businessKpis.avg_latency_ms"
+            unit="ms"
+            hint="流式回答从建立连接到收尾入库的总耗时均值"
+            :subs="[
+              { label: '成功率', value: businessKpis.success_ratio, unit: '%' },
+              { label: '失败率', value: businessKpis.fail_ratio, unit: '%' },
+            ]"
+          />
+        </div>
+
+        <div class="panel">
+          <div class="panel-head">
+            <h3>问答趋势</h3>
+            <div class="panel-subkpis">
+              <div><span>问答次数</span><strong>{{ trendKpis.asked }}</strong></div>
+              <div><span>成功次数/占比</span><strong>{{ trendKpis.success }}<em>/{{ trendKpis.successPct }}%</em></strong></div>
+              <div><span>失败次数/占比</span><strong>{{ trendKpis.failed }}<em>/{{ trendKpis.failedPct }}%</em></strong></div>
+            </div>
+          </div>
+          <TrendChart
+            :buckets="business.trend"
+            :series="businessSeries"
+            :height="280"
+          />
+        </div>
+
+        <div class="panel">
+          <div class="panel-head">
+            <h3>高频提问 Top10</h3>
+            <span class="panel-sub">{{ rangeLabel }} · 按问题原文聚合</span>
+          </div>
+          <RankBarList
+            :items="business.top_questions"
+            label-key="question"
+            value-key="count"
+            color="#126854"
+            empty-text="当前时段暂无问答记录"
+          />
+        </div>
+      </template>
+
+      <template v-else>
+        <div class="kpi-row kpi-row--four">
+          <StatCard
+            label="知识文档总数"
+            :value="resourceKpis.document_count"
+            hint="未删除的制度/手册/FAQ 文档"
+          />
+          <StatCard
+            label="累计 Tokens"
+            :value="resourceKpis.total_tokens"
+            hint="当前时间窗口内消耗的 tokens 总量"
+          />
+          <StatCard
+            label="累计 PU"
+            :value="resourceKpis.total_pu"
+            hint="当前时间窗口内消耗的 PU (Processing Unit)"
+          />
+          <StatCard
+            label="API 调用次数"
+            :value="resourceKpis.api_call_count"
+            hint="Tencent ADP 等外部接口调用总次数"
+            :subs="[
+              { label: '成功率', value: resourceKpis.api_success_ratio, unit: '%' },
+              { label: '平均耗时', value: resourceKpis.avg_api_latency_ms, unit: 'ms' },
+            ]"
+          />
+        </div>
+
+        <div class="panel">
+          <div class="panel-head">
+            <h3>Tokens / PU 消耗趋势</h3>
+            <span class="panel-sub">{{ rangeLabel }}</span>
+          </div>
+          <TrendChart
+            :buckets="resources.token_trend"
+            :series="tokenSeries"
+            :height="260"
+          />
+        </div>
+
+        <div class="panel">
+          <div class="panel-head">
+            <h3>热门引用文档 Top10</h3>
+            <span class="panel-sub">按被引用次数排序</span>
+          </div>
+          <RankBarList
+            :items="resources.top_documents"
+            label-key="title"
+            value-key="count"
+            color="#1c7f9e"
+            empty-text="当前时段暂无引用记录"
+          />
+        </div>
+      </template>
+    </div>
+  </section>
+</template>
+
+<style scoped>
+.analytics-view {
+  display: block;
+  overflow-y: auto;
+  padding: 20px 24px;
+}
+.analytics-header {
+  display: flex;
+  align-items: flex-end;
+  justify-content: space-between;
+  gap: 16px;
+  margin-bottom: 16px;
+}
+.analytics-header h2 {
+  margin: 0 0 4px;
+  font-size: 20px;
+}
+.analytics-header p {
+  margin: 0;
+  color: var(--muted);
+  font-size: 12px;
+}
+.tabs {
+  display: inline-flex;
+  border: 1px solid var(--line);
+  border-radius: 8px;
+  overflow: hidden;
+  background: #fff;
+}
+.tab {
+  padding: 8px 16px;
+  border: 0;
+  background: transparent;
+  color: var(--muted);
+  font-size: 13px;
+  font-weight: 600;
+}
+.tab.active {
+  background: var(--brand);
+  color: #fff;
+}
+.tab + .tab {
+  border-left: 1px solid var(--line);
+}
+.tab.active + .tab,
+.tab:has(+ .tab.active) {
+  border-color: var(--brand);
+}
+.toolbar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+  padding: 12px 14px;
+  background: #fff;
+  border: 1px solid var(--line);
+  border-radius: 10px;
+  margin-bottom: 16px;
+}
+.range-group {
+  display: inline-flex;
+  gap: 6px;
+}
+.range-btn {
+  padding: 6px 12px;
+  background: #fff;
+  border: 1px solid var(--line);
+  border-radius: 6px;
+  color: var(--muted);
+  font-size: 12px;
+  font-weight: 600;
+}
+.range-btn.active {
+  color: var(--brand);
+  border-color: var(--brand);
+  background: var(--brand-soft);
+}
+.toolbar-right {
+  display: inline-flex;
+  align-items: center;
+  gap: 10px;
+}
+.loading-tag,
+.error-tag {
+  font-size: 12px;
+  color: var(--muted);
+}
+.error-tag { color: var(--danger); }
+.icon-btn {
+  width: 30px;
+  height: 30px;
+  padding: 0;
+  border-radius: 6px;
+  border: 1px solid var(--line);
+  background: #fff;
+  color: var(--muted);
+  font-size: 15px;
+  cursor: pointer;
+  display: grid;
+  place-items: center;
+}
+.icon-btn:hover { color: var(--brand); border-color: var(--brand); }
+
+.analytics-body {
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+}
+.kpi-row {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 16px;
+}
+.kpi-row--four {
+  grid-template-columns: repeat(4, minmax(0, 1fr));
+}
+@media (max-width: 1200px) {
+  .kpi-row,
+  .kpi-row--four {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+}
+@media (max-width: 720px) {
+  .kpi-row,
+  .kpi-row--four {
+    grid-template-columns: 1fr;
+  }
+}
+.panel {
+  background: #fff;
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  padding: 18px 20px;
+  box-shadow: 0 4px 16px rgba(20, 33, 29, 0.04);
+}
+.panel-head {
+  display: flex;
+  align-items: flex-end;
+  justify-content: space-between;
+  gap: 20px;
+  margin-bottom: 14px;
+}
+.panel-head h3 {
+  margin: 0;
+  font-size: 15px;
+  color: var(--ink);
+}
+.panel-sub {
+  font-size: 12px;
+  color: var(--muted);
+}
+.panel-subkpis {
+  display: inline-flex;
+  gap: 24px;
+}
+.panel-subkpis > div {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-end;
+  gap: 2px;
+}
+.panel-subkpis span {
+  font-size: 11px;
+  color: var(--muted);
+}
+.panel-subkpis strong {
+  font-size: 18px;
+  color: var(--ink);
+}
+.panel-subkpis em {
+  margin-left: 2px;
+  color: var(--muted);
+  font-style: normal;
+  font-size: 13px;
+  font-weight: 500;
+}
+</style>