feat(admin): 数据总览按客迹视觉V1重做（周期卡/趋势双线/渠道条形/最近访问）

Co-Authored-By: Claude Code <noreply@anthropic.com>

admin/src/api/tracker/dashboard.ts

@@ -1,59 +1,59 @@
 import request from '@/utils/http'
 
 /**
- * 总览 API（server/tracker/api/dashboard.py）
+ * 总览 API（server/tracker/api/dashboard.py，客迹视觉 V1 形状）
  *
- * 今日四指标与 refresh_daily 共享口径（daily_counts：排除爬虫，上海自然日）；
- * site 参数传 site_id，不传 = 聚合全部站点（站点不存在返回 404 site_not_found）。
+ * 周期口径全排除爬虫；site 参数传 site_id，不传 = 聚合全部站点
+ * （站点不存在返回 404 site_not_found）；range 非法值后端回落 7d。
  */
 
-/** 今日四指标 + 当前在线（5 分钟内有行为的非爬虫访客数） */
-export interface TodayCounts {
-  pv: number
-  uv: number
-  sessions: number
-  new_visitors: number
+/** 周期枚举：today=上海自然日；7d/30d=近 N 天窗口 */
+export type OverviewRange = 'today' | '7d' | '30d'
+
+/** 页头在线信息（active_now 是 online 的兼容别名，二者恒相等） */
+export interface OverviewHeader {
+  online: number
   active_now: number
 }
 
-/** 近 30 天趋势点（缺日补零，今天一位用实时值覆盖；每日含全部四指标） */
+/** 周期卡指标；delta_pct = 与上一个等长周期比较的百分比（today 比昨天），
+ *  上期值为 0 时为 null（前端显示 —） */
+export interface CardMetric {
+  value: number
+  delta_pct: number | null
+}
+
+/** 四张周期卡：访客数 / 访问次数 / 平均有效停留(ms) / 回访访客 */
+export interface OverviewCards {
+  visitors: CardMetric
+  visits: CardMetric
+  avg_stay_ms: CardMetric
+  returning: CardMetric
+}
+
+/** 趋势点（日粒度：历史位为 DailyStat 聚合、缺日补零，今天一位为实时值） */
 export interface TrendPoint {
   date: string
-  pv: number
   uv: number
   sessions: number
-  new_visitors: number
 }
 
-/** 今日来源 TOP8（referrer_domain 为空归并为"直接访问"） */
-export interface SourceItem {
-  source: string
-  sessions: number
-}
-
-/** 今日渠道构成 TOP8（session_entry 分类聚合，sessions 去重计数；
- *  channel 为 CHANNELS 枚举，无分类行不计入——未重算的历史会话不在此口径内） */
+/** 渠道聚合行：channel 为 CHANNELS 枚举（含 direct/unknown）；
+ *  pct = 占已分类会话比（4 位小数，列表内总和 ≈ 1；无分类行的历史会话不计入） */
 export interface ChannelItem {
   channel: string
   sessions: number
-}
-
-/** 今日热门页面 TOP8（page_view 按 path 聚合） */
-export interface PageItem {
-  path: string
-  pv: number
+  pct: number
 }
 
 /** 总览响应 */
 export interface OverviewResp {
-  today: TodayCounts
+  header: OverviewHeader
+  cards: OverviewCards
   trend: TrendPoint[]
-  sources: SourceItem[]
-  /** 来源渠道聚合（sources 的归因升级版，原始域名口径保留在 sources） */
   channels: ChannelItem[]
-  top_pages: PageItem[]
 }
 
-/** 总览数据（site 可选，传 site_id） */
-export const getOverview = (site?: string) =>
-  request.get<OverviewResp>({ url: '/admin/dashboard/overview', params: site ? { site } : {} })
+/** 总览数据（site 传 site_id 可选；range 默认 7d） */
+export const getOverview = (params: { site?: string; range?: OverviewRange } = {}) =>
+  request.get<OverviewResp>({ url: '/admin/dashboard/overview', params })

admin/src/api/tracker/visitors.ts

@@ -34,6 +34,8 @@ export interface VisitorRow {
   last_source: string
   /** 首次访问落地页（空串=未采集，如直达首页；列表 tooltip / 详情识别卡用） */
   first_landing_path: string
+  /** 最近一条事件的 path（总览「浏览页面」列；无事件访客为空串） */
+  last_path: string
   /** 首触来源归因（first_touch 分类；无分类行/未重算的历史访客为 ''，前端回落 first_source 展示） */
   channel: string
   platform: string

admin/src/utils/tracker/index.ts

@@ -80,6 +80,29 @@ export function channelBadge(row: ChannelBadgeRow): string {
 export const formatDateTime = (iso?: string | null): string =>
   iso ? iso.replace('T', ' ').slice(0, 16) : '—'
 
+/** 上海自然日今天（YYYY-MM-DD；后端 ISO 串同为上海时间，日期部分可直接比对） */
+const shanghaiDate = (): string =>
+  new Intl.DateTimeFormat('en-CA', { timeZone: 'Asia/Shanghai' }).format(new Date())
+
+/** YYYY-MM-DD 平移 n 天（按 UTC 毫秒运算，不受本地时区夏令时干扰） */
+const shiftDate = (date: string, days: number): string => {
+  const d = new Date(`${date}T00:00:00Z`)
+  d.setUTCDate(d.getUTCDate() + days)
+  return d.toISOString().slice(0, 10)
+}
+
+/** ISO 时间 → 智能短时间：今天 HH:mm / 昨天 HH:mm / 更早 MM-DD HH:mm（空值 —）
+ *  后端已是上海时间，日期部分与 shanghaiDate 同口径比对，不做时区换算 */
+export const formatSmartTime = (iso?: string | null): string => {
+  if (!iso) return '—'
+  const date = iso.slice(0, 10)
+  const time = iso.slice(11, 16)
+  const today = shanghaiDate()
+  if (date === today) return `今天 ${time}`
+  if (date === shiftDate(today, -1)) return `昨天 ${time}`
+  return `${date.slice(5)} ${time}`
+}
+
 /** 毫秒 → x天x小时x分x秒（智能省略：为 0 的单位不显示；全 0 / 不足 1 秒显示 0秒） */
 export const formatStay = (ms?: number | null): string => {
   const totalSec = Math.max(0, Math.floor((ms ?? 0) / 1000))

admin/src/views/tracker/dashboard/index.vue

@@ -1,19 +1,23 @@
-<!-- 访客统计 · 数据总览 -->
+<!-- 访客统计 · 数据总览（客迹视觉 V1：周期四卡 + 趋势双线 + 渠道条形 + 最近访问） -->
 <template>
-  <div class="tracker-dashboard-page">
-    <!-- 筛选栏：站点切换 + 刷新 -->
-    <div class="art-card mb-4 flex-c flex-wrap gap-3 px-5 py-4">
-      <ArtSvgIcon icon="ri:bar-chart-box-line" class="text-lg text-theme" />
-      <h2 class="m-0 text-base font-semibold">数据总览</h2>
-      <span class="text-xs text-g-500">今日指标为上海自然日口径，已排除爬虫</span>
-      <div class="ml-auto flex-c gap-2">
-        <span class="text-sm text-g-600">站点</span>
+  <div class="tracker-dashboard-page p-5">
+    <!-- 页头：标题/副标题 + 在线胶囊 + 站点/周期筛选 -->
+    <div class="db-header">
+      <div class="db-header-main">
+        <h2 class="db-title">数据概览</h2>
+        <p class="db-subtitle">了解每一次访问，连接每一个触点</p>
+      </div>
+      <div class="db-header-tools">
+        <span class="db-online" :class="{ 'is-online': onlineCount > 0 }">
+          <i class="db-online-dot" />
+          在线 {{ onlineCount }}
+        </span>
         <!-- 宽度用内联 style：EP 未分层 width 规则会压过 Tailwind utilities 层的 w-* 类 -->
         <ElSelect
           v-model="selectedSiteId"
-          style="width: 256px"
+          style="width: 220px"
           :loading="sitesLoading"
-          @change="loadOverview"
+          @change="onSiteChange"
         >
           <ElOption label="全部站点" value="ALL_SITES" />
           <ElOption
@@ -23,120 +27,153 @@
             :value="site.site_id"
           />
         </ElSelect>
-        <ElTooltip content="刷新数据" placement="top">
-          <ElButton circle :icon="RefreshIcon" :loading="overviewLoading" @click="refreshAll" />
-        </ElTooltip>
+        <ElSelect v-model="range" style="width: 132px" @change="loadOverview">
+          <ElOption label="今天" value="today" />
+          <ElOption label="近 7 天" value="7d" />
+          <ElOption label="近 30 天" value="30d" />
+        </ElSelect>
       </div>
     </div>
 
-    <!-- 今日五指标 -->
-    <div
-      v-loading="overviewLoading"
-      class="grid grid-cols-2 gap-4 mb-4 md:grid-cols-3 xl:grid-cols-5"
+    <!-- 4 周期统计卡 -->
+    <div v-loading="overviewLoading" class="db-stats">
+      <div v-for="card in statCards" :key="card.label" class="vd-card db-stat-card">
+        <div class="db-stat-top">
+          <div class="db-stat-icon">
+            <ElIcon :size="20">
+              <component :is="card.icon" />
+            </ElIcon>
+          </div>
+          <span class="db-stat-label">{{ card.label }}</span>
+        </div>
+        <span class="db-stat-value">{{ card.value }}</span>
+        <div class="db-stat-trend">
+          <span v-if="card.delta === null" class="db-delta is-none">—</span>
+          <span
+            v-else
+            class="db-delta"
+            :class="card.delta >= 0 ? 'is-up' : 'is-down'"
           >
-      <div
-        v-for="card in statCards"
-        :key="card.label"
-        class="art-card relative h-30 flex flex-col justify-center px-5"
+            {{ card.delta >= 0 ? '↑' : '↓' }}{{ Math.abs(card.delta) }}%
+          </span>
+          <span class="db-delta-caption">较上一周期</span>
+        </div>
+      </div>
+    </div>
+
+    <!-- 双栏图表行：访问趋势（2/3） + 来源分布（1/3） -->
+    <div class="db-charts">
+      <div class="vd-card db-chart-card">
+        <div class="db-card-head">
+          <div class="db-card-title">
+            <ElIcon :size="16"><TrendChartsIcon /></ElIcon>
+            <span>访问趋势</span>
+          </div>
+          <span class="db-card-hint">{{ RANGE_HINTS[range] }}，今日为实时值</span>
+        </div>
+        <div ref="trendRef" class="db-chart-body" />
+      </div>
+
+      <div class="vd-card db-chart-card">
+        <div class="db-card-head">
+          <div class="db-card-title">
+            <ElIcon :size="16"><HistogramIcon /></ElIcon>
+            <span>来源分布</span>
+          </div>
+          <span class="db-card-hint">按会话入口归因</span>
+        </div>
+        <div ref="channelRef" class="db-chart-body" />
+      </div>
+    </div>
+
+    <!-- 最近访问表 -->
+    <div class="vd-card db-table-card">
+      <div class="db-card-head">
+        <div class="db-card-title">
+          <ElIcon :size="16"><ClockIcon /></ElIcon>
+          <span>最近访问</span>
+        </div>
+        <ElButton link type="primary" @click="goVisitorList">查看更多 →</ElButton>
+      </div>
+      <ElTable
+        :data="recentVisitors"
+        v-loading="visitorsLoading"
+        empty-text="暂无访客数据"
+        row-class-name="db-clickable-row"
+        @row-click="openVisitor"
       >
-        <span class="text-sm text-g-600">{{ card.label }}</span>
-        <ArtCountTo class="mt-1.5 text-[26px] font-medium" :target="card.value" :duration="1300" />
-        <div class="absolute top-0 bottom-0 right-5 m-auto size-11 rounded-lg flex-cc bg-theme/10">
-          <ArtSvgIcon :icon="card.icon" class="text-lg text-theme" />
-        </div>
-      </div>
-    </div>
-
-    <!-- 近 30 天趋势 -->
-    <div class="art-card mb-4 px-5 py-4">
-      <div class="flex-c flex-wrap gap-2 mb-2">
-        <h3 class="m-0 text-sm font-semibold">近 30 天趋势</h3>
-        <span class="text-xs text-g-500">今日为实时值，历史为每日聚合</span>
-      </div>
-      <ArtLineChart
-        :data="trendSeries"
-        :x-axis-data="trendDates"
-        :colors="lineColors"
-        :loading="overviewLoading"
-        height="22rem"
-        show-legend
-        legend-position="top"
-      />
-    </div>
-
-    <!-- 来源构成 + 热门页面 -->
-    <div class="grid grid-cols-1 gap-4 xl:grid-cols-2">
-      <div class="art-card px-5 py-4">
-        <div class="flex-c flex-wrap gap-2 mb-2">
-          <h3 class="m-0 text-sm font-semibold">渠道构成（今日 TOP8）</h3>
-          <span class="text-xs text-g-500">按归因规则聚合会话数，未重算的历史会话不计入</span>
-        </div>
-        <ArtRingChart
-          :data="channelData"
-          :colors="channelColors"
-          :loading="overviewLoading"
-          height="15rem"
-          show-legend
-          legend-position="right"
-        />
-        <!-- 平台明细：原始 referrer 域名口径（与渠道归因互补，域名级下钻） -->
-        <div class="mt-4" v-loading="overviewLoading">
-          <div class="flex-c flex-wrap gap-2 mb-2">
-            <h4 class="m-0 text-xs font-semibold text-g-600">平台明细（今日 TOP8）</h4>
-            <span class="text-xs text-g-500">无 referrer 归为"直接访问"</span>
-          </div>
-          <ElTable :data="platformSources" size="small" max-height="240">
-            <ElTableColumn prop="source" label="来源域名" min-width="160" show-overflow-tooltip>
+        <ElTableColumn label="访客" min-width="210">
           <template #default="{ row }">
-                <span class="text-xs">{{ row.source }}</span>
+            <div class="db-visitor-cell">
+              <code class="db-visitor-code">{{ row.visitor_id.slice(0, 8) }}</code>
+              <span
+                v-if="row.channel"
+                class="db-badge"
+                :style="badgeStyle(row)"
+              >{{ channelBadge(row) }}</span>
+            </div>
           </template>
         </ElTableColumn>
-            <ElTableColumn prop="sessions" label="会话数" width="90" align="right" />
-          </ElTable>
-        </div>
-      </div>
-
-      <div class="art-card px-5 py-4" v-loading="overviewLoading">
-        <div class="flex-c flex-wrap gap-2 mb-2">
-          <h3 class="m-0 text-sm font-semibold">热门页面（今日 TOP8）</h3>
-          <span class="text-xs text-g-500">按 PV 统计</span>
-        </div>
-        <ElTable :data="topPages" height="20rem">
-          <ElTableColumn type="index" label="#" width="50" />
-          <ElTableColumn prop="path" label="页面路径" show-overflow-tooltip min-width="200">
+        <ElTableColumn label="本次来源" min-width="150" show-overflow-tooltip>
           <template #default="{ row }">
-              <span class="font-mono text-xs">{{ row.path }}</span>
+            <span class="db-source-text">{{ row.last_source || '—' }}</span>
           </template>
         </ElTableColumn>
-          <ElTableColumn prop="pv" label="PV" width="80" align="right" sortable />
+        <ElTableColumn label="浏览页面" min-width="200" show-overflow-tooltip>
+          <template #default="{ row }">
+            <span class="db-path-text">{{ row.last_path || '—' }}</span>
+          </template>
+        </ElTableColumn>
+        <ElTableColumn label="有效停留" width="130" align="right">
+          <template #default="{ row }">{{ formatStay(row.total_stay_ms) }}</template>
+        </ElTableColumn>
+        <ElTableColumn label="最近访问" width="130">
+          <template #default="{ row }">{{ formatSmartTime(row.last_seen_at) }}</template>
+        </ElTableColumn>
       </ElTable>
     </div>
   </div>
-  </div>
 </template>
 
 <script setup lang="ts">
-  import { Refresh as RefreshIcon } from '@element-plus/icons-vue'
-  import { useChartOps } from '@/hooks/core/useChart'
+  import { markRaw } from 'vue'
+  import {
+    Clock as ClockIcon,
+    Histogram as HistogramIcon,
+    Timer as TimerIcon,
+    TrendCharts as TrendChartsIcon,
+    User as UserIcon,
+    UserFilled as UserFilledIcon,
+    VideoPlay as VideoPlayIcon
+  } from '@element-plus/icons-vue'
+  import { graphic } from '@/plugins/echarts'
+  import { useChart } from '@/hooks/core/useChart'
   import { getSites, type SiteRow } from '@/api/tracker/sites'
-  import { getOverview, type OverviewResp } from '@/api/tracker/dashboard'
-  import { CHANNEL_LABELS } from '@/utils/tracker'
+  import {
+    getOverview,
+    type OverviewRange,
+    type OverviewResp
+  } from '@/api/tracker/dashboard'
+  import { getVisitors, type VisitorRow } from '@/api/tracker/visitors'
+  import { CHANNEL_LABELS, channelBadge, formatSmartTime, formatStay } from '@/utils/tracker'
 
   defineOptions({ name: 'TrackerDashboard' })
 
-  /** 图表色板：模板主题色为主，剔除过浅色与重复色（useChartOps 默认第 3 位 #EDF2FF 在浅色底不可见） */
-  const themeColor = useChartOps().themeColor
-  const lineColors = [themeColor, '#4ABEFF', '#14DEBA', '#FFAF20']
+  // 客迹视觉 V1 图表用色（双线：主蓝 + 青；与详情页色板同源）
+  const TREND_COLORS = { uv: '#2563EB', sessions: '#06B6D4' }
+  const RANGE_HINTS: Record<OverviewRange, string> = {
+    today: '今天',
+    '7d': '近 7 天',
+    '30d': '近 30 天'
+  }
 
-  // 站点筛选（哨兵值 ALL_SITES = 全部站点；空串会被 ElSelect 当空值显示 placeholder）
+  // ---------- 站点 / 周期筛选 ----------
+  // 哨兵值 ALL_SITES = 全部站点（空串会被 ElSelect 当空值显示 placeholder）
   const ALL_SITES = 'ALL_SITES'
   const sites = ref<SiteRow[]>([])
   const sitesLoading = ref(false)
   const selectedSiteId = ref(ALL_SITES)
-
-  // 总览数据
-  const overview = ref<OverviewResp | null>(null)
-  const overviewLoading = ref(false)
+  const range = ref<OverviewRange>('7d')
 
   const loadSites = async () => {
     sitesLoading.value = true
@@ -149,74 +186,528 @@
     }
   }
 
-  // 请求令牌：快速切换站点时丢弃过期响应，避免旧数据覆盖新数据/旧 finally 提前清 loading
+  // ---------- 总览（周期卡 + 趋势 + 渠道） ----------
+  const overview = ref<OverviewResp | null>(null)
+  const overviewLoading = ref(false)
+
+  // 请求令牌：快速切周期/站点时丢弃过期响应，避免旧数据覆盖新数据/旧 finally 提前清 loading
   let reqSeq = 0
   const loadOverview = async () => {
     const id = ++reqSeq
     overviewLoading.value = true
     try {
-      const resp = await getOverview(
-        selectedSiteId.value === ALL_SITES ? undefined : selectedSiteId.value
-      )
+      const resp = await getOverview({
+        site: selectedSiteId.value === ALL_SITES ? undefined : selectedSiteId.value,
+        range: range.value
+      })
       if (id === reqSeq) overview.value = resp
     } catch {
-      // 失败已由请求层统一 ElMessage 提示；overview 置空让图表/表格走空态
+      // 失败已由请求层统一 ElMessage 提示；overview 置空走空态
       if (id === reqSeq) overview.value = null
     } finally {
       if (id === reqSeq) overviewLoading.value = false
     }
   }
 
-  const refreshAll = () => {
-    loadSites()
+  // 站点切换：总览与最近访问都按站点过滤，需同时重拉
+  const onSiteChange = () => {
     loadOverview()
+    loadRecentVisitors()
   }
 
-  onMounted(() => {
-    loadSites()
-    loadOverview()
-  })
+  const onlineCount = computed(() => overview.value?.header.online ?? 0)
 
-  // 今日五指标卡
-  const statCards = computed(() => [
-    { label: '今日 PV', value: overview.value?.today.pv ?? 0, icon: 'ri:eye-line' },
-    { label: '今日 UV', value: overview.value?.today.uv ?? 0, icon: 'ri:user-line' },
-    { label: '今日会话', value: overview.value?.today.sessions ?? 0, icon: 'ri:door-open-line' },
+  /** 千分位（访客数/访问次数/回访访客） */
+  const fmtInt = (n: number) => n.toLocaleString('en-US')
+
+  // 四张周期卡：值 + 环比（delta 为 null 显示灰 —，负值红 ↓）
+  const statCards = computed<{ label: string; icon: Component; value: string; delta: number | null }[]>(() => [
     {
-      label: '今日新访客',
-      value: overview.value?.today.new_visitors ?? 0,
-      icon: 'ri:user-add-line'
+      label: '访客数',
+      icon: markRaw(UserIcon),
+      value: fmtInt(overview.value?.cards.visitors.value ?? 0),
+      delta: overview.value?.cards.visitors.delta_pct ?? null
     },
-    { label: '在线访客', value: overview.value?.today.active_now ?? 0, icon: 'ri:pulse-line' }
+    {
+      label: '访问次数',
+      icon: markRaw(VideoPlayIcon),
+      value: fmtInt(overview.value?.cards.visits.value ?? 0),
+      delta: overview.value?.cards.visits.delta_pct ?? null
+    },
+    {
+      label: '平均有效停留',
+      icon: markRaw(TimerIcon),
+      value: formatStay(overview.value?.cards.avg_stay_ms.value ?? 0),
+      delta: overview.value?.cards.avg_stay_ms.delta_pct ?? null
+    },
+    {
+      label: '回访访客',
+      icon: markRaw(UserFilledIcon),
+      value: fmtInt(overview.value?.cards.returning.value ?? 0),
+      delta: overview.value?.cards.returning.delta_pct ?? null
+    }
   ])
 
-  // 趋势折线：x 轴日期取 MM-DD
-  const trendDates = computed(() => (overview.value?.trend ?? []).map((p) => p.date.slice(5)))
-  const trendSeries = computed(() => {
-    const trend = overview.value?.trend ?? []
-    return [
-      { name: '浏览量', data: trend.map((p) => p.pv) },
-      { name: '访客数', data: trend.map((p) => p.uv) },
-      { name: '会话数', data: trend.map((p) => p.sessions) },
-      { name: '新访客', data: trend.map((p) => p.new_visitors) }
+  // ---------- 访问趋势双线图（主蓝=访客数 / 青=访问次数） ----------
+  const trend = useChart()
+  const trendRef = trend.chartRef
+  const { isDark } = trend
+
+  const areaGradient = (hex: string, topAlpha: number) =>
+    new graphic.LinearGradient(0, 0, 0, 1, [
+      { offset: 0, color: `rgba(${hex}, ${topAlpha})` },
+      { offset: 1, color: `rgba(${hex}, 0.01)` }
+    ])
+
+  const renderTrendChart = () => {
+    const points = overview.value?.trend ?? []
+    // 全零窗口显示空态（与模板折线图组件同款判定）
+    const empty = !points.length || points.every((p) => p.uv === 0 && p.sessions === 0)
+    if (empty) {
+      trend.initChart({}, true)
+      return
+    }
+    trend.updateChart({
+      grid: { top: 44, right: 16, bottom: 8, left: 0, containLabel: true },
+      tooltip: { ...trend.getTooltipStyle('axis') },
+      legend: {
+        right: 0,
+        top: 0,
+        icon: 'roundRect',
+        itemWidth: 14,
+        itemHeight: 4,
+        itemGap: 16,
+        textStyle: { color: isDark.value ? '#fff' : '#4E5969', fontSize: 12 }
+      },
+      xAxis: {
+        type: 'category',
+        boundaryGap: false,
+        data: points.map((p) => p.date.slice(5).replace('-', '/')),   // MM/DD
+        axisTick: trend.getAxisTickStyle(),
+        axisLine: trend.getAxisLineStyle(),
+        axisLabel: trend.getAxisLabelStyle()
+      },
+      yAxis: {
+        type: 'value',
+        min: 0,
+        minInterval: 1,
+        axisLabel: trend.getAxisLabelStyle(),
+        axisLine: trend.getAxisLineStyle(false),
+        splitLine: trend.getSplitLineStyle()
+      },
+      series: [
+        {
+          name: '访客数',
+          type: 'line',
+          z: 3,   // 双线数值相等（uv==sessions）时主蓝线画在青线之上，保持"访客数为主"的视觉层级
+          smooth: true,
+          symbol: 'circle',
+          symbolSize: 5,
+          showSymbol: false,
+          data: points.map((p) => p.uv),
+          color: TREND_COLORS.uv,
+          lineStyle: { width: 2.5 },
+          areaStyle: { color: areaGradient('37, 99, 235', 0.18) }
+        },
+        {
+          name: '访问次数',
+          type: 'line',
+          z: 2,
+          smooth: true,
+          symbol: 'circle',
+          symbolSize: 5,
+          showSymbol: false,
+          data: points.map((p) => p.sessions),
+          color: TREND_COLORS.sessions,
+          lineStyle: { width: 2.5 },
+          areaStyle: { color: areaGradient('6, 182, 212', 0.16) }
+        }
       ]
     })
+  }
 
-  // 渠道构成饼图（归因口径）：标签/颜色都按渠道绑定取自 CHANNEL_LABELS——
-  // 颜色随 data 同序映射，渠道缺席时也不会错位到别的渠道色
-  const channelData = computed(() =>
-    (overview.value?.channels ?? []).map((c) => ({
-      name: CHANNEL_LABELS[c.channel]?.label ?? c.channel,
-      value: c.sessions
-    }))
-  )
-  const channelColors = computed(() =>
-    (overview.value?.channels ?? []).map((c) => CHANNEL_LABELS[c.channel]?.color ?? '#C0C4CC')
+  // ---------- 来源分布横向条形图（条长严格按 pct，x 轴定死 0-100） ----------
+  const channelChart = useChart()
+  const channelRef = channelChart.chartRef
+
+  const renderChannelChart = () => {
+    const channels = overview.value?.channels ?? []
+    if (!channels.length) {
+      channelChart.initChart({}, true)
+      return
+    }
+    const sessionsOf = new Map(
+      channels.map((c) => [channelLabel(c.channel), c.sessions])
     )
+    channelChart.updateChart({
+      grid: { top: 8, right: 52, bottom: 8, left: 8, containLabel: true },
+      tooltip: {
+        ...channelChart.getTooltipStyle('item'),
+        formatter: (p: { name: string }) =>
+          `${p.name}：${sessionsOf.get(p.name) ?? 0} 次会话`
+      },
+      xAxis: { type: 'value', min: 0, max: 100, show: false },
+      yAxis: {
+        type: 'category',
+        inverse: true,   // 最大的渠道在最上
+        data: channels.map((c) => channelLabel(c.channel)),
+        axisTick: { show: false },
+        axisLine: { show: false },
+        axisLabel: { color: isDark.value ? '#fff' : '#4E5969', fontSize: 12 }
+      },
+      series: [
+        {
+          type: 'bar',
+          barWidth: 14,
+          data: channels.map((c) => ({
+            value: Number((c.pct * 100).toFixed(2)),
+            itemStyle: {
+              color: CHANNEL_LABELS[c.channel]?.color ?? '#C0C4CC',
+              borderRadius: [0, 7, 7, 0]
+            }
+          })),
+          label: {
+            show: true,
+            position: 'right',
+            color: isDark.value ? '#fff' : '#4E5969',
+            fontSize: 12,
+            fontWeight: 600,
+            formatter: (p: { value: unknown }) => `${Math.round(Number(p.value))}%`
+          }
+        }
+      ]
+    })
+  }
 
-  // 平台明细（原始 referrer 域名口径，与渠道归因互补）
-  const platformSources = computed(() => overview.value?.sources ?? [])
+  /** 渠道显示名（CHANNEL_LABELS 已把 direct 标为「直接或未知」；未枚举值原样） */
+  const channelLabel = (channel: string): string =>
+    CHANNEL_LABELS[channel]?.label ?? channel
 
-  // 热门页面
-  const topPages = computed(() => overview.value?.top_pages ?? [])
+  // 数据到位后重绘两张图（nextTick 等容器就绪；卸载销毁由 useChart 的 onUnmounted 负责）
+  watch(overview, () => {
+    nextTick(() => {
+      renderTrendChart()
+      renderChannelChart()
+    })
+  })
+
+  // ---------- 最近访问（前 5 行，既有访客列表接口） ----------
+  const recentVisitors = ref<VisitorRow[]>([])
+  const visitorsLoading = ref(false)
+  let visitorsSeq = 0
+
+  const loadRecentVisitors = async () => {
+    const seq = ++visitorsSeq
+    visitorsLoading.value = true
+    try {
+      const resp = await getVisitors({
+        page: 1,
+        site: selectedSiteId.value === ALL_SITES ? undefined : selectedSiteId.value
+      })
+      if (seq === visitorsSeq) recentVisitors.value = (resp.list ?? []).slice(0, 5)
+    } catch {
+      if (seq === visitorsSeq) recentVisitors.value = []
+    } finally {
+      if (seq === visitorsSeq) visitorsLoading.value = false
+    }
+  }
+
+  /** 渠道徽章配色：渠道色 → 文字/浅底/描边（与列表/详情同款） */
+  const badgeStyle = (row: VisitorRow): Record<string, string> => {
+    const color = CHANNEL_LABELS[row.channel]?.color ?? CHANNEL_LABELS.unknown.color
+    return { color, background: `${color}1A`, borderColor: `${color}59` }
+  }
+
+  const router = useRouter()
+  const openVisitor = (row: VisitorRow) => {
+    router.push({ path: '/tracker/visitor/detail', query: { visitor_id: row.visitor_id } })
+  }
+  const goVisitorList = () => router.push('/tracker/visitor')
+
+  // ---------- 生命周期（keepAlive：首次挂载拉取，再次激活刷新数据） ----------
+  let booted = false
+  let firstActivation = true
+  const boot = () => {
+    if (booted) return
+    booted = true
+    loadSites()
+    loadOverview()
+    loadRecentVisitors()
+  }
+
+  onMounted(boot)
+  onActivated(() => {
+    if (firstActivation) {
+      firstActivation = false   // 首次激活紧随 onMounted，boot 已拉取
+      return
+    }
+    loadOverview()
+    loadRecentVisitors()
+  })
 </script>
+
+<style lang="scss" scoped>
+  // 客迹视觉 V1 色板 token（与访客详情页同款）
+  $vd-primary: #2563eb;
+  $vd-primary-bg: #e8f1fe;
+  $vd-text: #1d2129;
+  $vd-text-2: #4e5969;
+  $vd-text-3: #86909c;
+  $vd-border: #e9eaf0;
+
+  .vd-card {
+    background: var(--default-box-color, #fff);
+    border: 1px solid $vd-border;
+    border-radius: 12px;
+    box-shadow: 0 1px 3px rgba(29, 33, 41, 0.04);
+  }
+
+  // 页头
+  .db-header {
+    display: flex;
+    align-items: flex-end;
+    justify-content: space-between;
+    flex-wrap: wrap;
+    gap: 12px 20px;
+    margin-bottom: 16px;
+  }
+
+  .db-title {
+    margin: 0;
+    font-size: 24px;
+    font-weight: 700;
+    color: $vd-text;
+    line-height: 1.3;
+  }
+
+  .db-subtitle {
+    margin: 6px 0 0;
+    font-size: 14px;
+    color: $vd-text-3;
+  }
+
+  .db-header-tools {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 10px;
+  }
+
+  // 在线胶囊：灰点离线 / 绿点在线
+  .db-online {
+    display: inline-flex;
+    align-items: center;
+    padding: 5px 12px;
+    font-size: 13px;
+    color: $vd-text-2;
+    background: var(--default-box-color, #fff);
+    border: 1px solid $vd-border;
+    border-radius: 999px;
+    gap: 6px;
+
+    .db-online-dot {
+      width: 7px;
+      height: 7px;
+      background: var(--el-text-color-disabled);
+      border-radius: 50%;
+    }
+
+    &.is-online {
+      color: var(--el-color-success);
+
+      .db-online-dot {
+        background: var(--el-color-success);
+      }
+    }
+  }
+
+  // 4 周期统计卡
+  .db-stats {
+    display: grid;
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+    gap: 16px;
+    margin-bottom: 16px;
+    min-height: 118px;
+  }
+
+  .db-stat-card {
+    display: flex;
+    flex-direction: column;
+    padding: 18px 20px 14px;
+  }
+
+  .db-stat-top {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+  }
+
+  .db-stat-icon {
+    display: flex;
+    width: 44px;
+    height: 44px;
+    flex: none;
+    align-items: center;
+    justify-content: center;
+    color: $vd-primary;
+    background: $vd-primary-bg;
+    border-radius: 12px;
+  }
+
+  .db-stat-label {
+    font-size: 13px;
+    color: $vd-text-3;
+  }
+
+  .db-stat-value {
+    margin-top: 10px;
+    overflow: hidden;
+    font-size: 26px;
+    font-weight: 700;
+    color: $vd-text;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  // 趋势行（卡右下角）：涨绿跌红 / null 灰 —
+  .db-stat-trend {
+    display: flex;
+    align-items: baseline;
+    justify-content: flex-end;
+    margin-top: auto;
+    padding-top: 8px;
+    gap: 6px;
+  }
+
+  .db-delta {
+    font-size: 13px;
+    font-weight: 700;
+
+    &.is-up {
+      color: var(--el-color-success);
+    }
+
+    &.is-down {
+      color: var(--el-color-danger);
+    }
+
+    &.is-none {
+      font-weight: 400;
+      color: $vd-text-3;
+    }
+  }
+
+  .db-delta-caption {
+    font-size: 12px;
+    color: $vd-text-3;
+  }
+
+  // 双栏图表行：趋势 2/3 + 来源分布 1/3
+  .db-charts {
+    display: grid;
+    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
+    gap: 20px;
+    margin-bottom: 16px;
+  }
+
+  .db-chart-card {
+    display: flex;
+    flex-direction: column;
+  }
+
+  .db-card-head {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    flex-wrap: wrap;
+    padding: 16px 20px 12px;
+    gap: 8px 12px;
+    border-bottom: 1px solid $vd-border;
+  }
+
+  .db-card-title {
+    display: flex;
+    align-items: center;
+    font-size: 15px;
+    font-weight: 600;
+    color: $vd-text;
+    gap: 8px;
+
+    .el-icon {
+      color: $vd-primary;
+    }
+  }
+
+  .db-card-hint {
+    font-size: 12px;
+    color: $vd-text-3;
+  }
+
+  .db-chart-body {
+    height: 300px;
+    padding: 12px 16px;
+  }
+
+  // 最近访问表卡
+  .db-table-card {
+    padding-bottom: 12px;
+  }
+
+  .db-visitor-cell {
+    display: flex;
+    flex-direction: column;
+    align-items: flex-start;
+    padding: 6px 0;
+    gap: 4px;
+  }
+
+  .db-visitor-code {
+    padding: 2px 8px;
+    font-size: 12px;
+    background: var(--el-fill-color-light);
+    border-radius: 4px;
+    color: var(--el-text-color-regular);
+  }
+
+  // 渠道徽章胶囊（复用 channelBadge 文案 + 渠道配色）
+  .db-badge {
+    display: inline-block;
+    max-width: 100%;
+    padding: 2px 10px;
+    overflow: hidden;
+    font-size: 12px;
+    line-height: 18px;
+    border: 1px solid transparent;
+    border-radius: 999px;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  .db-source-text {
+    font-size: 13px;
+    color: $vd-text-2;
+  }
+
+  .db-path-text {
+    font-family: var(--el-font-family-mono, monospace);
+    font-size: 12px;
+    color: $vd-text-2;
+  }
+
+  :deep(.db-clickable-row) {
+    cursor: pointer;
+  }
+
+  // 响应式：中屏图表下沉单栏，小屏统计卡两列
+  @media (max-width: 1200px) {
+    .db-charts {
+      grid-template-columns: minmax(0, 1fr);
+    }
+  }
+
+  @media (max-width: 900px) {
+    .db-stats {
+      grid-template-columns: repeat(2, minmax(0, 1fr));
+    }
+  }
+</style>

server/tracker/api/dashboard.py

@@ -1,19 +1,61 @@
+"""数据总览接口（客迹视觉 V1：周期卡 + 趋势双线 + 渠道分布）。
+
+?range=today|7d|30d（默认 7d，非法值回落默认）+ ?site=（可选，缺省聚合全部站点）。
+- 周期卡四指标全口径排除爬虫，与上一个等长周期比较出 delta_pct（today 比昨天）；
+  上期值为 0 时 delta 为 null（前端显示 —）。
+- 趋势为日粒度：历史位读 DailyStat 聚合（缺日补零），今天一位用 daily_counts 实时值
+  （聚合作业未跑也不缺当日）——与 refresh_daily 共享口径（Task8 审查结论）。
+- channels 按窗口内会话入口分类聚合，pct = 占已分类会话比（列表含 direct/unknown，
+  总和 ≈ 1；未重算出分类行的历史会话不计入）。
+- 最近访问不在本接口做：前端调既有 /api/admin/visitors?page=1 取前 5 行。
+"""
 from datetime import datetime, time, timedelta
+
 from django.db.models import Count, Sum
 from django.utils import timezone
-from rest_framework.views import APIView
 from rest_framework.response import Response
+from rest_framework.views import APIView
+
 from tracker.api.envelope import EnvelopeMixin, ok
 from tracker.models import DailyStat, Event, Site, SourceClassification, VisitSession, Visitor
 from tracker.services.stats import daily_counts
 
-METRICS = ("pv", "uv", "sessions", "new_visitors")
+RANGE_DAYS = {"today": 1, "7d": 7, "30d": 30}
+CARD_KEYS = ("visitors", "visits", "avg_stay_ms", "returning")
 
 
-def _day_bounds(date):
-    """上海自然日窗口，与 daily_counts 同款 make_aware。"""
-    start = timezone.make_aware(datetime.combine(date, time.min))
-    return start, start + timedelta(days=1)
+def _window_stats(site, start, end):
+    """窗口四指标（site=None 聚合全部站点；全口径排除爬虫）。
+
+    visitors 按 Event distinct visitor（与 daily_counts 的 uv 同源，跨日不重复计）；
+    visits 按会话 started_at 落窗；avg_stay_ms = Sum(stay_ms)/会话数（0 保护）；
+    returning = visitors - 窗口内新访客（first_seen_at 落窗；异常数据下限 0）。
+    """
+    ev = Event.objects.filter(is_bot=False,
+                              occurred_at__gte=start, occurred_at__lt=end)
+    vs = VisitSession.objects.filter(visitor__is_bot=False,
+                                     started_at__gte=start, started_at__lt=end)
+    vis = Visitor.objects.filter(is_bot=False,
+                                 first_seen_at__gte=start, first_seen_at__lt=end)
+    if site is not None:
+        ev = ev.filter(site=site)
+        vs = vs.filter(site=site)
+        vis = vis.filter(site=site)
+    agg = vs.aggregate(n=Count("id"), stay=Sum("stay_ms"))
+    sessions = agg["n"]
+    visitors = ev.values("visitor").distinct().count()
+    new_visitors = vis.count()
+    return {"visitors": visitors,
+            "visits": sessions,
+            "avg_stay_ms": round((agg["stay"] or 0) / sessions) if sessions else 0,
+            "returning": max(visitors - new_visitors, 0)}
+
+
+def _delta(cur, prev):
+    """环比百分比（保留 1 位小数）；上期值为 0 无意义 → None。"""
+    if prev == 0:
+        return None
+    return round((cur - prev) / prev * 100, 1)
 
 
 class OverviewView(EnvelopeMixin, APIView):
@@ -25,14 +67,25 @@ class OverviewView(EnvelopeMixin, APIView):
             if not site:
                 return Response({"code": 404, "data": None,
                                  "message": "site_not_found"}, status=404)
+        days = RANGE_DAYS.get(request.query_params.get("range", "7d"), 7)
         today = timezone.localdate()
-        counts = daily_counts(site, today)          # 与 refresh_daily 共享口径（Task8 审查结论）
-        counts["active_now"] = self._active_now(site)
-        return ok({"today": counts,
-                   "trend": self._trend(site, today, counts),
-                   "sources": self._today_sources(site, today),
-                   "channels": self._today_channels(site, today),
-                   "top_pages": self._today_pages(site, today)})
+        # 当前窗口与上期等长窗口（上海自然日对齐：[T-N+1, T+1) 与 [T-2N+1, T-N+1)）
+        cur_start = timezone.make_aware(
+            datetime.combine(today - timedelta(days=days - 1), time.min))
+        cur_end = timezone.make_aware(
+            datetime.combine(today + timedelta(days=1), time.min))
+        prev_start = cur_start - timedelta(days=days)
+
+        cur = _window_stats(site, cur_start, cur_end)
+        prev = _window_stats(site, prev_start, cur_start)
+        online = self._active_now(site)
+        return ok({
+            "header": {"online": online, "active_now": online},   # active_now 兼容保留
+            "cards": {k: {"value": cur[k], "delta_pct": _delta(cur[k], prev[k])}
+                      for k in CARD_KEYS},
+            "trend": self._trend(site, today, days),
+            "channels": self._channels(site, cur_start, cur_end),
+        })
 
     @staticmethod
     def _active_now(site):
@@ -43,62 +96,43 @@ class OverviewView(EnvelopeMixin, APIView):
             q = q.filter(site=site)
         return q.count()
 
-    def _trend(self, site, today, today_counts):
-        """DailyStat 近 30 天（缺日补零；今天一位用 daily_counts 实时值覆盖——聚合作业未跑也不缺当日）。"""
-        days = 30
+    def _trend(self, site, today, days):
+        """窗口每日 [{date, uv, sessions}]：历史位读 DailyStat（缺日补零），
+        今天一位用 daily_counts 实时值覆盖——聚合作业未跑也不缺当日。"""
         start = today - timedelta(days=days - 1)
         qs = DailyStat.objects.filter(date__gte=start, date__lte=today)
         if site is not None:
             qs = qs.filter(site=site)
         rows = {r["date"]: r for r in qs.values("date").annotate(
-            pv=Sum("pv"), uv=Sum("uv"), sessions=Sum("sessions"),
-            new_visitors=Sum("new_visitors"))}
+            uv=Sum("uv"), sessions=Sum("sessions"))}
         out = []
         for i in range(days):
             date = start + timedelta(days=i)
             if date == today:
+                counts = daily_counts(site, today)
                 out.append({"date": date.isoformat(),
-                            **{k: today_counts[k] for k in METRICS}})
+                            "uv": counts["uv"], "sessions": counts["sessions"]})
             else:
                 r = rows.get(date, {})
                 out.append({"date": date.isoformat(),
-                            **{k: r.get(k, 0) for k in METRICS}})
+                            "uv": r.get("uv") or 0, "sessions": r.get("sessions") or 0})
         return out
 
-    def _today_sources(self, site, today):
-        start, end = _day_bounds(today)
-        q = VisitSession.objects.filter(visitor__is_bot=False,
-                                        started_at__gte=start, started_at__lt=end)
-        if site is not None:
-            q = q.filter(site=site)
-        return [{"source": r["referrer_domain"] or "直接访问", "sessions": r["n"]}
-                for r in q.values("referrer_domain")
-                         .annotate(n=Count("id"))
-                         .order_by("-n", "referrer_domain")[:8]]   # 平局时次序跨请求稳定
-
-    def _today_channels(self, site, today):
-        """当天会话按来源渠道聚合（session_entry 分类；sources 的升级版，原始口径保留）。
+    def _channels(self, site, start, end):
+        """窗口内会话按 session_entry 分类聚合（session.started_at 落窗）。
         从分类表正向聚合 + Count(distinct session)：无唯一约束下分类表偶发同键重复行
-        也不会把同一会话计两次。无分类行的会话（未重算的历史数据）不计入。"""
-        start, end = _day_bounds(today)
+        也不会把同一会话计两次。pct = 占已分类会话比（含 direct/unknown，总和 ≈ 1；
+        无分类行的会话——未重算的历史数据——不计入）。"""
         q = SourceClassification.objects.filter(
             scope="session_entry",
             session__visitor__is_bot=False,
             session__started_at__gte=start, session__started_at__lt=end)
         if site is not None:
             q = q.filter(site=site)
-        return [{"channel": r["channel"] or "unknown", "sessions": r["n"]}
-                for r in q.values("channel")
+        rows = list(q.values("channel")
                     .annotate(n=Count("session", distinct=True))
-                         .order_by("-n", "channel")[:8]]   # 平局时次序跨请求稳定
-
-    def _today_pages(self, site, today):
-        start, end = _day_bounds(today)
-        q = Event.objects.filter(is_bot=False, event_name="page_view",
-                                 occurred_at__gte=start, occurred_at__lt=end)
-        if site is not None:
-            q = q.filter(site=site)
-        return [{"path": r["path"], "pv": r["n"]}
-                for r in q.values("path")
-                         .annotate(n=Count("id"))
-                         .order_by("-n", "path")[:8]]   # 平局时次序跨请求稳定
+                    .order_by("-n", "channel"))   # 平局时次序跨请求稳定
+        total = sum(r["n"] for r in rows)
+        return [{"channel": r["channel"] or "unknown", "sessions": r["n"],
+                 "pct": round(r["n"] / total, 4) if total else 0.0}
+                for r in rows]

server/tracker/api/visitors.py

@@ -37,7 +37,8 @@ def _iso(dt):
 
 def _row(visitor, last_session, online_cutoff, ft=None):
     """列表/详情共用行字段。last_source 依赖最近会话（由调用方批量取好传入，防 N+1）。
-    channel 等归因五字段来自该访客 first_touch 分类（无分类行 → 空串，前端回落 first_source 展示）。"""
+    channel 等归因五字段来自该访客 first_touch 分类（无分类行 → 空串，前端回落 first_source 展示）。
+    last_path 是最近一条事件的 path（_annotate 的 Subquery 注解，同样无 N+1）。"""
     return {
         "visitor_id": visitor.visitor_id,
         # 站点归属：visitor.site 需随行 select_related("site")，否则逐行多一条查询
@@ -55,6 +56,7 @@ def _row(visitor, last_session, online_cutoff, ft=None):
         "last_source": _source(last_session.referrer_domain, last_session.utm)
                        if last_session else "直接访问",   # 无会话访客（仅采集异常场景）
         "first_landing_path": visitor.first_landing_path,   # 列表首触来源 tooltip 用（详情本就输出）
+        "last_path": visitor.last_event_path or "",   # 最近一条事件 path（总览"浏览页面"列）
         "channel": ft.channel if ft else "",
         "platform": ft.platform if ft else "",
         "variant": ft.variant if ft else "",
@@ -87,18 +89,23 @@ def _session_summary(s):
 
 
 def _annotate(qs):
-    """会话数/有效停留/最近会话标记一次注解到位。
+    """会话数/有效停留/最近会话/最近事件路径一次注解到位。
 
     last_source 不逐行 sessions.order_by("-started_at").first()（页大小 20 即 N+1）：
     先用相关子查询把每个访客最近会话的 pk 标到行上（走 (visitor,-started_at) 索引），
     分页后一次 IN 查询取回整页会话——全程只多 2 条 SQL。
+    last_path 同理用相关子查询取最近一条事件的 path（走 (site,visitor,-occurred_at) 索引），
+    -pk 平局次序跨请求稳定；无事件访客注解为 NULL，_row 收敛为空串。
     """
     latest = (VisitSession.objects.filter(visitor=OuterRef("pk"))
               .order_by("-started_at", "-pk"))   # -pk 平局次序跨请求稳定
+    last_event = (Event.objects.filter(visitor=OuterRef("pk"))
+                  .order_by("-occurred_at", "-pk"))
     return qs.annotate(
         session_count=Count("sessions"),
         total_stay_ms=Sum("sessions__stay_ms"),       # 有效停留口径（非 duration_ms）
         latest_session_pk=Subquery(latest.values("pk")[:1]),
+        last_event_path=Subquery(last_event.values("path")[:1]),
     )
 
 

server/tracker/tests/test_dashboard.py

@@ -14,6 +14,8 @@ User = get_user_model()
 NOW = timezone.localtime(timezone.now())
 TODAY = NOW.date()
 YESTERDAY = TODAY - timedelta(days=1)
+AT_3D = NOW - timedelta(days=3)    # 7d 当前窗口内（近 3 天）
+AT_10D = NOW - timedelta(days=10)  # 7d 上期窗口内（前 7 天）
 
 
 @pytest.fixture
@@ -32,16 +34,23 @@ def _auth(client, user):
     client.credentials(HTTP_AUTHORIZATION=f"Bearer {token.access_token}")
 
 
-def _visitor(site, vid, last_seen=None):
+def _visitor(site, vid, last_seen=None, first_seen=None):
     v = Visitor.objects.create(site=site, visitor_id=vid)
-    if last_seen is not None:   # last_seen_at 是 auto_now_add，只能 queryset.update 绕开
-        Visitor.objects.filter(pk=v.pk).update(last_seen_at=last_seen)
+    # first/last_seen_at 是 auto_now_add，只能 queryset.update 绕开
+    fields = {}
+    if last_seen is not None:
+        fields["last_seen_at"] = last_seen
+    if first_seen is not None:
+        fields["first_seen_at"] = first_seen
+    if fields:
+        Visitor.objects.filter(pk=v.pk).update(**fields)
     return v
 
 
-def _session(site, visitor, sid, referrer="", at=NOW):
+def _session(site, visitor, sid, referrer="", at=NOW, stay_ms=0):
     return VisitSession.objects.create(site=site, visitor=visitor, session_id=sid,
-        started_at=at, ended_at=at + timedelta(minutes=5), referrer_domain=referrer)
+        started_at=at, ended_at=at + timedelta(minutes=5), referrer_domain=referrer,
+        stay_ms=stay_ms)
 
 
 def _events(site, visitor, session, n, path, at=NOW, prefix="e"):
@@ -55,106 +64,174 @@ def test_overview_requires_auth(client):
     assert client.get("/api/admin/dashboard/overview").status_code == 401
 
 
-def test_overview_shape_and_numbers(client, member_user):
+def test_overview_7d_cards_and_deltas(client, member_user):
+    """7d 四卡指标 + delta 正负 + 上期零（returning）为 null；爬虫全口径排除。"""
     _auth(client, member_user)
     site = Site.objects.create(name="s", domains=["a.com"])
-    v1 = _visitor(site, "v1", last_seen=timezone.now())                    # 活跃（5 分钟内）
-    v2 = _visitor(site, "v2", last_seen=timezone.now() - timedelta(hours=1))  # 不活跃
-    s1 = _session(site, v1, "s1", referrer="google.com")
-    s2 = _session(site, v2, "s2", referrer="google.com")
-    s3 = _session(site, v1, "s3", referrer="")                              # 空来源 → 直接访问
-    _events(site, v1, s1, 6, "/pricing", prefix="p")                       # /pricing x6
-    _events(site, v1, s3, 2, "/", prefix="r")                              # / x2
-    _events(site, v2, s2, 2, "/docs", prefix="d")                          # /docs x2
+    # 本期（近 7 天）：v1/v2 今天首访（新访客），v3 是 10 天前的老访客 3 天前回访
+    v1 = _visitor(site, "v1", last_seen=timezone.now())
+    v2 = _visitor(site, "v2", last_seen=timezone.now())
+    v3 = _visitor(site, "v3", last_seen=timezone.now(), first_seen=AT_10D)
+    s1 = _session(site, v1, "s1", stay_ms=60000)
+    s2 = _session(site, v2, "s2", stay_ms=30000)
+    s3 = _session(site, v3, "s3", at=AT_3D)                       # stay 0
+    _events(site, v1, s1, 2, "/a", prefix="a")
+    _events(site, v2, s2, 1, "/b", prefix="b")
+    _events(site, v3, s3, 1, "/c", at=AT_3D, prefix="c")
+    # 上期（前 7 天）：v3 首访 + v4 三次会话——上期 visitors=2 / visits=4 / avg=20000
+    sp3 = _session(site, v3, "sp3", at=AT_10D, stay_ms=10000)
+    _events(site, v3, sp3, 1, "/old3", at=AT_10D, prefix="o3")
+    v4 = _visitor(site, "v4", last_seen=AT_10D, first_seen=AT_10D)
+    for i, stay in enumerate((20000, 30000, 20000)):
+        sp = _session(site, v4, f"sp4-{i}", at=AT_10D, stay_ms=stay)
+        _events(site, v4, sp, 1, "/old4", at=AT_10D, prefix=f"o4{i}")
+    # 爬虫：今天有大额停留与事件，任何口径都不得计入（事件行同步标记 is_bot，与 ingest 同口径）
+    bot = _visitor(site, "bot-v", last_seen=timezone.now())
+    Visitor.objects.filter(pk=bot.pk).update(is_bot=True)
+    sb = _session(site, bot, "sb", stay_ms=999000)
+    _events(site, bot, sb, 5, "/bot", prefix="bt")
+    Event.objects.filter(visitor=bot).update(is_bot=True)
 
-    r = client.get("/api/admin/dashboard/overview")
+    r = client.get("/api/admin/dashboard/overview")            # 缺省 range=7d
     assert r.status_code == 200
     d = r.json()["data"]
-    assert d["today"] == {"pv": 10, "uv": 2, "sessions": 3,
-                          "new_visitors": 2, "active_now": 1}
+    # 本期：visitors=3（v1/v2/v3）、visits=3、avg=(60k+30k+0)/3=30k、returning=3-2 新=1
+    # 上期：visitors=2（v3/v4）、visits=4、avg=80k/4=20k、returning=2-2 新=0 → delta null
+    assert d["cards"]["visitors"] == {"value": 3, "delta_pct": 50.0}       # 正
+    assert d["cards"]["visits"] == {"value": 3, "delta_pct": -25.0}        # 负
+    assert d["cards"]["avg_stay_ms"] == {"value": 30000, "delta_pct": 50.0}
+    assert d["cards"]["returning"] == {"value": 1, "delta_pct": None}      # 上期 0 → null
+    # 在线：v1/v2/v3 活跃（bot 排除、v4 十天前不在线）
+    assert d["header"] == {"online": 3, "active_now": 3}   # active_now 兼容保留
+    # 趋势：7 点日粒度，历史无 DailyStat 补零，今天一位用实时值（uv=2、sessions=2，bot 排除）
     trend = d["trend"]
-    assert len(trend) == 30
-    assert trend[-1]["date"] == TODAY.isoformat()
-    assert trend[-1]["pv"] == 10            # 今天位用实时值
-    assert trend[-2]["pv"] == 0             # 昨天无 DailyStat → 补零
-    assert d["sources"][0] == {"source": "google.com", "sessions": 2}
-    assert d["sources"][-1] == {"source": "直接访问", "sessions": 1}
-    assert d["top_pages"][0] == {"path": "/pricing", "pv": 6}
+    assert len(trend) == 7
+    assert trend[0]["date"] == (TODAY - timedelta(days=6)).isoformat()
+    assert trend[-1] == {"date": TODAY.isoformat(), "uv": 2, "sessions": 2}
+    assert trend[-2] == {"date": YESTERDAY.isoformat(), "uv": 0, "sessions": 0}
+    assert d["channels"] == []                               # 无分类行 → 空列表
+
+
+def test_overview_prev_zero_delta_null(client, member_user):
+    """上期完全无数据：四卡 delta_pct 全为 null，卡值正常。"""
+    _auth(client, member_user)
+    site = Site.objects.create(name="s", domains=["a.com"])
+    v1 = _visitor(site, "v1", last_seen=timezone.now())
+    s1 = _session(site, v1, "s1", stay_ms=50000)
+    _events(site, v1, s1, 2, "/a", prefix="a")
+
+    d = client.get("/api/admin/dashboard/overview").json()["data"]
+    assert d["cards"] == {
+        "visitors": {"value": 1, "delta_pct": None},
+        "visits": {"value": 1, "delta_pct": None},
+        "avg_stay_ms": {"value": 50000, "delta_pct": None},
+        "returning": {"value": 0, "delta_pct": None},   # 新访客 → 回访 0，同样上期零
+    }
+
+
+def test_overview_channels_pct(client, member_user):
+    """channels：窗口内 session_entry 分类聚合，pct 占已分类会话比、总和 ≈ 1。"""
+    _auth(client, member_user)
+    site = Site.objects.create(name="s", domains=["a.com"])
+    v1 = _visitor(site, "v1", last_seen=timezone.now())
+    v2 = _visitor(site, "v2", last_seen=timezone.now())
+    s1 = _session(site, v1, "s1", referrer="www.bing.com")
+    s2 = _session(site, v1, "s2", referrer="www.bing.com", at=AT_3D)
+    s3 = _session(site, v2, "s3", referrer="chatgpt.com")
+    s4 = _session(site, v2, "s4")                                 # 直接访问
+    s5 = _session(site, v2, "s5", referrer="t.co", at=AT_10D)     # 上期：不计入
+    s6 = _session(site, v2, "s6", referrer="example.com")         # 无分类行：不计入
+    for s, ch, pf in ((s1, "natural_search", "Bing"), (s2, "natural_search", "Bing"),
+                      (s3, "ai_referral", "ChatGPT"), (s4, "direct", "")):
+        SourceClassification.objects.create(site=site, visitor=s.visitor, session=s,
+            scope="session_entry", channel=ch, platform=pf)
+    SourceClassification.objects.create(site=site, visitor=v2, session=s5,
+        scope="session_entry", channel="social", platform="Twitter")
+    _events(site, v1, s1, 1, "/", prefix="x")
+
+    d = client.get("/api/admin/dashboard/overview").json()["data"]
+    assert d["channels"] == [
+        {"channel": "natural_search", "sessions": 2, "pct": pytest.approx(0.5)},
+        {"channel": "ai_referral", "sessions": 1, "pct": pytest.approx(0.25)},
+        {"channel": "direct", "sessions": 1, "pct": pytest.approx(0.25)},  # 平局按名稳定
+    ]
+    assert sum(c["pct"] for c in d["channels"]) == pytest.approx(1.0)
+
+
+def test_overview_range_today(client, member_user):
+    """range=today：卡按今天口径、delta 比昨天；趋势单点；非法 range 回落 7d。"""
+    _auth(client, member_user)
+    site = Site.objects.create(name="s", domains=["a.com"])
+    vy = _visitor(site, "vy", last_seen=timezone.now(), first_seen=NOW - timedelta(days=1))
+    sy = _session(site, vy, "sy", at=NOW - timedelta(days=1), stay_ms=60000)
+    _events(site, vy, sy, 2, "/y", at=NOW - timedelta(days=1), prefix="y")
+    vt = _visitor(site, "vt", last_seen=timezone.now())
+    st = _session(site, vt, "st", stay_ms=30000)
+    _events(site, vt, st, 1, "/t", prefix="t")
+
+    d = client.get("/api/admin/dashboard/overview", {"range": "today"}).json()["data"]
+    assert d["trend"] == [{"date": TODAY.isoformat(), "uv": 1, "sessions": 1}]
+    assert d["cards"]["visitors"] == {"value": 1, "delta_pct": 0.0}     # 昨天也是 1
+    assert d["cards"]["visits"] == {"value": 1, "delta_pct": 0.0}
+    assert d["cards"]["avg_stay_ms"] == {"value": 30000, "delta_pct": -50.0}
+    assert d["cards"]["returning"]["delta_pct"] is None                 # 两天都是全新访客
+
+    assert len(client.get("/api/admin/dashboard/overview").json()["data"]["trend"]) == 7
+    d = client.get("/api/admin/dashboard/overview", {"range": "abc"}).json()["data"]
+    assert len(d["trend"]) == 7                                          # 非法值回落 7d
+    d = client.get("/api/admin/dashboard/overview", {"range": "30d"}).json()["data"]
+    assert len(d["trend"]) == 30
 
 
 def test_overview_trend_uses_dailystat_history(client, member_user):
+    """7d 趋势历史位读 DailyStat 聚合（跨站求和），今天位用实时值。"""
     _auth(client, member_user)
     site_a = Site.objects.create(name="a", domains=["a.com"])
     site_b = Site.objects.create(name="b", domains=["b.com"])
     yn = NOW - timedelta(days=1)   # 昨天同一本地时刻，必落上海昨日窗口
-    # a 站昨天 3 事件走真实 refresh_daily 落 DailyStat
     va = Visitor.objects.create(site=site_a, visitor_id="va")
     sa = _session(site_a, va, "sa", at=yn)
     _events(site_a, va, sa, 3, "/", at=yn, prefix="ya")
     refresh_daily(site_a, YESTERDAY)
-    # b 站昨天 4 事件同样走 refresh_daily——两站各落一行，验证 site=None 的跨站 Sum
     vb = Visitor.objects.create(site=site_b, visitor_id="vb")
     sb = _session(site_b, vb, "sb", at=yn)
     _events(site_b, vb, sb, 4, "/", at=yn, prefix="yb")
     refresh_daily(site_b, YESTERDAY)
 
     d = client.get("/api/admin/dashboard/overview").json()["data"]
-    assert d["trend"][-2] == {"date": YESTERDAY.isoformat(), "pv": 7, "uv": 2,
-                              "sessions": 2, "new_visitors": 0}   # 3+4 跨站点求和
-    assert d["trend"][-1]["pv"] == 0   # 今天无事件，实时覆盖为 0
-
-
-def test_overview_channels_aggregation(client, member_user):
-    """channels：当天会话按 session_entry 分类的 channel 聚合（与 sources 并存，互不影响）。"""
-    _auth(client, member_user)
-    site = Site.objects.create(name="s", domains=["a.com"])
-    v1 = _visitor(site, "v1", last_seen=timezone.now())
-    v2 = _visitor(site, "v2", last_seen=timezone.now())
-    s1 = _session(site, v1, "s1", referrer="www.bing.com")
-    s2 = _session(site, v1, "s2", referrer="www.bing.com")
-    s3 = _session(site, v2, "s3", referrer="chatgpt.com")
-    s4 = _session(site, v2, "s4", referrer="")                      # 直接访问
-    SourceClassification.objects.create(site=site, visitor=v1, session=s1,
-        scope="session_entry", channel="natural_search", platform="Bing")
-    SourceClassification.objects.create(site=site, visitor=v1, session=s2,
-        scope="session_entry", channel="natural_search", platform="Bing")
-    SourceClassification.objects.create(site=site, visitor=v2, session=s3,
-        scope="session_entry", channel="ai_referral", platform="ChatGPT")
-    SourceClassification.objects.create(site=site, visitor=v2, session=s4,
-        scope="session_entry", channel="direct", resolution="unknown")
-    _events(site, v1, s1, 2, "/", prefix="a")
-
-    d = client.get("/api/admin/dashboard/overview").json()["data"]
-    assert d["channels"] == [{"channel": "natural_search", "sessions": 2},
-                             {"channel": "ai_referral", "sessions": 1},
-                             {"channel": "direct", "sessions": 1}]   # 倒序 top8，平局按名稳定
-    assert d["sources"][0] == {"source": "www.bing.com", "sessions": 2}  # 原口径保留
+    trend = d["trend"]
+    assert len(trend) == 7
+    assert trend[-2] == {"date": YESTERDAY.isoformat(), "uv": 2, "sessions": 2}  # 跨站求和
+    assert trend[-1] == {"date": TODAY.isoformat(), "uv": 0, "sessions": 0}      # 今天无事件
 
 
 def test_overview_site_filter_and_404(client, member_user):
     _auth(client, member_user)
     site_a = Site.objects.create(name="a", domains=["a.com"])
     site_b = Site.objects.create(name="b", domains=["b.com"])
-    va = _visitor(site_a, "va")
-    vb = _visitor(site_b, "vb")
+    va = _visitor(site_a, "va", last_seen=timezone.now())
+    vb = _visitor(site_b, "vb", last_seen=timezone.now())
     sa = _session(site_a, va, "sa", referrer="google.com")
-    sb = _session(site_b, vb, "sb", referrer="")
+    sb = _session(site_b, vb, "sb")
     _events(site_a, va, sa, 2, "/", prefix="a")
     _events(site_b, vb, sb, 5, "/b", prefix="b")
+    SourceClassification.objects.create(site=site_b, visitor=vb, session=sb,
+        scope="session_entry", channel="direct", resolution="unknown")
     # a 站昨天有 DailyStat 行——过滤 site_b 时不得混入
     yn = NOW - timedelta(days=1)
     _events(site_a, va, sa, 3, "/", at=yn, prefix="ay")
     refresh_daily(site_a, YESTERDAY)
 
     d = client.get("/api/admin/dashboard/overview").json()["data"]
-    assert d["today"]["pv"] == 7           # 缺省聚合全部站点
+    assert d["cards"]["visitors"]["value"] == 2          # 缺省聚合全部站点
+    assert d["header"]["online"] == 2
     d = client.get("/api/admin/dashboard/overview", {"site": site_b.site_id}).json()["data"]
-    assert d["today"]["pv"] == 5 and d["today"]["uv"] == 1
-    assert d["today"]["active_now"] == 1     # 两访客 last_seen 均为 now，但只计本站
-    assert d["sources"] == [{"source": "直接访问", "sessions": 1}]
-    assert d["top_pages"][0] == {"path": "/b", "pv": 5}
-    assert d["trend"][-2]["pv"] == 0       # a 站昨日行被站点过滤排除
-    assert d["trend"][-1]["pv"] == 5       # 今天位仍是本站实时值
+    assert d["cards"]["visitors"]["value"] == 1 and d["cards"]["visits"]["value"] == 1
+    assert d["header"]["online"] == 1                      # 只计本站
+    assert d["channels"] == [{"channel": "direct", "sessions": 1,
+                              "pct": pytest.approx(1.0)}]
+    assert d["trend"][-2] == {"date": YESTERDAY.isoformat(), "uv": 0, "sessions": 0}
+    assert d["trend"][-1] == {"date": TODAY.isoformat(), "uv": 1, "sessions": 1}
 
     r = client.get("/api/admin/dashboard/overview", {"site": "site_nope"})
     assert r.status_code == 404

server/tracker/tests/test_visitors.py

@@ -78,8 +78,8 @@ def test_list_fields_and_default_bot_excluded(client, member_user):
                         "device_type", "os", "browser", "language", "first_seen_at",
                         "last_seen_at", "visit_count", "active_days", "session_count",
                         "total_stay_ms", "first_source", "last_source", "first_landing_path",
-                        "online", "channel", "platform", "variant", "search_term", "resolution",
-                        "device_model"}
+                        "last_path", "online", "channel", "platform", "variant", "search_term",
+                        "resolution", "device_model"}
     assert row["country"] == "中国" and row["os"] == "Windows" and row["browser"] == "Chrome"
     assert row["session_count"] == 2
     assert row["total_stay_ms"] == 150000            # 120000+30000，有效停留口径
@@ -146,6 +146,26 @@ def test_list_site_fields_and_site_filter(client, member_user):
     assert d["total"] == 1 and [x["visitor_id"] for x in d["list"]] == ["vb"]  # 只剩本站访客
 
 
+def test_list_last_path(client, member_user):
+    """列表行 last_path：该访客最近一条事件的 path（Subquery 注解，无 N+1）；
+    无事件访客为空串。"""
+    _auth(client, member_user)
+    site = Site.objects.create(name="s", domains=["a.com"])
+    v1 = _visitor(site, "v1", last_seen=timezone.now())
+    v2 = _visitor(site, "v2", last_seen=timezone.now() - timedelta(hours=1))
+    s1 = _session(site, v1, "s1", at=NOW - timedelta(hours=2))
+    _event(site, v1, s1, "e1", "page_view", NOW - timedelta(hours=2), path="/old")
+    _event(site, v1, s1, "e2", "page_view", NOW - timedelta(minutes=90), path="/stay")
+    _event(site, v1, s1, "e3", "page_stay", NOW - timedelta(minutes=30), path="/stay",
+           active_ms=1000)   # occurred_at 早于 e2 → 不改判"最近"
+    _event(site, v1, s1, "e4", "page_view", NOW, path="/newest")
+
+    d = client.get("/api/admin/visitors").json()["data"]
+    by_id = {x["visitor_id"]: x for x in d["list"]}
+    assert by_id["v1"]["last_path"] == "/newest"   # 最近一条事件的 path
+    assert by_id["v2"]["last_path"] == ""          # 无事件 → 空串（前端显示 —）
+
+
 def test_list_site_not_found(client, member_user):
     _auth(client, member_user)
     site = Site.objects.create(name="s", domains=["a.com"])
@@ -198,6 +218,7 @@ def test_detail_shape(client, member_user):
     assert d["session_count"] == 2 and d["total_stay_ms"] == 90000
     assert d["first_source"] == "google.com"
     assert d["last_source"] == "wechat"            # 最近会话 s-new：referrer 空 → utm 兜底
+    assert d["last_path"] == "/b"                  # 最近一条事件 e3 的 path
     assert [s["session_id"] for s in d["sessions"]] == ["s-new", "s-old"]   # 最近在前
     srow = d["sessions"][0]
     assert set(srow) == {"session_id", "started_at", "ended_at", "referrer_domain", "utm",