diff --git a/admin/src/views/tracker/visitor/detail.vue b/admin/src/views/tracker/visitor/detail.vue
index 581a1fe..c863946 100644
--- a/admin/src/views/tracker/visitor/detail.vue
+++ b/admin/src/views/tracker/visitor/detail.vue
@@ -1,4 +1,4 @@
-<!-- 访客统计 · 访客详情（客迹视觉 V1：头部卡 + 4 统计卡 + 双栏时间线/来源证据 + 会话与原始数据） -->
+<!-- 访客统计 · 访客详情（客迹视觉 V1：头部卡 + 三栏=时间线/会话/原始数据 Tab + 统计卡/来源证据 + 访问环境） -->
 <!-- keepAlive=true 且路由 path 固定：访客切换复用同一实例，刷新依赖 onActivated + query watch -->
 <template>
   <div class="visitor-detail-page p-5">
@@ -59,113 +59,211 @@
         <ElEmpty v-else-if="!profileLoading" description="访客数据加载失败或不存在" />
       </div>
 
-      <!-- 4 统计卡：图标块 + 小标签 + 大数字 -->
-      <div class="vd-stats">
-        <div v-for="tile in statTiles" :key="tile.label" class="vd-card vd-stat-card">
-          <div class="vd-stat-icon">
-            <ElIcon :size="20">
-              <component :is="tile.icon" />
-            </ElIcon>
-          </div>
-          <div class="vd-stat-body">
-            <span class="vd-stat-label">{{ tile.label }}</span>
-            <span class="vd-stat-value">{{ tile.value }}</span>
-          </div>
-        </div>
-      </div>
-
-      <!-- 主体双栏：时间线（左） + 来源证据/访问环境（右） -->
+      <!-- 主体三栏：左=时间线/会话/原始数据三 Tab，中=统计卡+来源证据，右=访问环境 -->
       <div class="vd-main">
-        <!-- 访问时间线 -->
-        <div class="vd-card vd-timeline-card">
-          <div class="vd-card-head">
-            <div class="vd-card-title">
-              <ElIcon :size="16"><ClockIcon /></ElIcon>
-              <span>访问时间线</span>
-            </div>
-            <div class="vd-card-tools">
-              <span class="vd-tool-label">时间范围</span>
-              <ElRadioGroup v-model="days" size="small" @change="loadTimeline()">
-                <ElRadioButton :value="7">近 7 天</ElRadioButton>
-                <ElRadioButton :value="30">近 30 天</ElRadioButton>
-                <ElRadioButton :value="90">近 90 天</ElRadioButton>
-              </ElRadioGroup>
-              <!-- 正序/倒序真实切换：倒序=日期组与组内事件都最新在前；正序=都最早在前 -->
-              <div class="vd-order-toggle" role="group" aria-label="时间线排序">
-                <button
-                  type="button"
-                  class="vd-order-btn"
-                  :class="{ 'is-active': order === 'desc' }"
-                  @click="order = 'desc'"
-                >
-                  倒序
-                </button>
-                <button
-                  type="button"
-                  class="vd-order-btn"
-                  :class="{ 'is-active': order === 'asc' }"
-                  @click="order = 'asc'"
-                >
-                  正序
-                </button>
-              </div>
-            </div>
-          </div>
-
-          <ElAlert
-            v-if="timeline?.truncated"
-            type="warning"
-            show-icon
-            :closable="false"
-            class="mb-3"
-            title="事件较多，仅显示最近 1000 条"
-          />
-
-          <div v-loading="timelineLoading" class="tl-body">
-            <template v-if="orderedDays.length">
-              <div v-for="day in orderedDays" :key="day.date" class="tl-day">
-                <!-- 日期组头：蓝点 + 09月16日 + 今天 tag -->
-                <div class="tl-day-header">
-                  <i class="tl-dot" />
-                  <span class="tl-date">{{ formatDayLabel(day.date) }}</span>
-                  <span v-if="isToday(day.date)" class="tl-today-tag">今天</span>
-                  <span class="tl-day-meta">{{ day.sessions.length }} 次会话</span>
+        <!-- 左栏：三 Tab（访问时间线 / 会话 / 原始数据） -->
+        <div class="vd-card vd-tabs-card">
+          <ElTabs v-model="activeTab" class="detail-tabs">
+            <!-- Tab 1：访问时间线 -->
+            <ElTabPane label="访问时间线" name="timeline">
+              <!-- 工具行：原卡头工具迁入（标题职能由 tab label 承担） -->
+              <div class="vd-tl-tools">
+                <span class="vd-tool-label">时间范围</span>
+                <ElRadioGroup v-model="days" size="small" @change="loadTimeline()">
+                  <ElRadioButton :value="7">近 7 天</ElRadioButton>
+                  <ElRadioButton :value="30">近 30 天</ElRadioButton>
+                  <ElRadioButton :value="90">近 90 天</ElRadioButton>
+                </ElRadioGroup>
+                <!-- 正序/倒序真实切换：倒序=日期组与组内事件都最新在前；正序=都最早在前 -->
+                <div class="vd-order-toggle" role="group" aria-label="时间线排序">
+                  <button
+                    type="button"
+                    class="vd-order-btn"
+                    :class="{ 'is-active': order === 'desc' }"
+                    @click="order = 'desc'"
+                  >
+                    倒序
+                  </button>
+                  <button
+                    type="button"
+                    class="vd-order-btn"
+                    :class="{ 'is-active': order === 'asc' }"
+                    @click="order = 'asc'"
+                  >
+                    正序
+                  </button>
                 </div>
+              </div>
 
-                <!-- 会话块：会话头（时间·来源·停留）+ 事件序列 -->
-                <div
-                  v-for="(session, si) in day.sessions"
-                  :key="session.session_id ?? `orphan-${si}`"
-                  class="tl-session"
-                >
-                  <div class="tl-session-header">
-                    <span class="tl-session-time">
-                      {{ session.started_at ? formatTime(session.started_at) : '未知会话' }}
-                    </span>
-                    <span class="tl-session-meta">{{ timelineSessionSource(session) }}</span>
-                    <span class="tl-session-meta">停留 {{ formatStay(sessionStayMs(session)) }}</span>
+              <ElAlert
+                v-if="timeline?.truncated"
+                type="warning"
+                show-icon
+                :closable="false"
+                class="mb-3"
+                title="事件较多，仅显示最近 1000 条"
+              />
+
+              <div v-loading="timelineLoading" class="tl-body">
+                <template v-if="orderedDays.length">
+                  <div v-for="day in orderedDays" :key="day.date" class="tl-day">
+                    <!-- 日期组头：蓝点 + 09月16日 + 今天 tag -->
+                    <div class="tl-day-header">
+                      <i class="tl-dot" />
+                      <span class="tl-date">{{ formatDayLabel(day.date) }}</span>
+                      <span v-if="isToday(day.date)" class="tl-today-tag">今天</span>
+                      <span class="tl-day-meta">{{ day.sessions.length }} 次会话</span>
+                    </div>
+
+                    <!-- 会话块：会话头（时间·来源·停留）+ 事件序列 -->
+                    <div
+                      v-for="(session, si) in day.sessions"
+                      :key="session.session_id ?? `orphan-${si}`"
+                      class="tl-session"
+                    >
+                      <div class="tl-session-header">
+                        <span class="tl-session-time">
+                          {{ session.started_at ? formatTime(session.started_at) : '未知会话' }}
+                        </span>
+                        <span class="tl-session-meta">{{ timelineSessionSource(session) }}</span>
+                        <span class="tl-session-meta">
+                          停留 {{ formatStay(sessionStayMs(session)) }}
+                        </span>
+                      </div>
+                      <EventTimeline :events="session.events" />
+                    </div>
                   </div>
-                  <EventTimeline :events="session.events" />
-                </div>
+                </template>
+                <!-- 失败：请求已结束但无数据对象（首屏加载中不显示，避免闪现） -->
+                <ElEmpty
+                  v-else-if="timeline === null && !timelineLoading"
+                  description="时间线加载失败"
+                  :image-size="80"
+                />
+                <!-- 成功但窗口内无事件 -->
+                <ElEmpty
+                  v-else-if="!timelineLoading"
+                  description="该时间范围内暂无访问轨迹"
+                  :image-size="80"
+                />
               </div>
-            </template>
-            <!-- 失败：请求已结束但无数据对象（首屏加载中不显示，避免闪现） -->
-            <ElEmpty
-              v-else-if="timeline === null && !timelineLoading"
-              description="时间线加载失败"
-              :image-size="80"
-            />
-            <!-- 成功但窗口内无事件 -->
-            <ElEmpty
-              v-else-if="!timelineLoading"
-              description="该时间范围内暂无访问轨迹"
-              :image-size="80"
-            />
-          </div>
+            </ElTabPane>
+
+            <!-- Tab 2：会话列表 -->
+            <ElTabPane :label="`会话（${detail?.sessions.length ?? 0}）`" name="sessions">
+              <div class="flex-c gap-2 mb-3">
+                <h3 class="m-0 text-sm font-semibold">会话列表</h3>
+                <span class="text-xs text-g-500">点击行查看会话事件序列</span>
+              </div>
+              <ElTable
+                :data="detail?.sessions ?? []"
+                v-loading="profileLoading"
+                empty-text="暂无会话数据"
+                row-class-name="session-row"
+                @row-click="openSession"
+              >
+                <ElTableColumn label="会话 ID" min-width="130">
+                  <template #default="{ row }">
+                    <code class="session-id-code">{{ row.session_id.slice(0, 8) }}</code>
+                  </template>
+                </ElTableColumn>
+                <ElTableColumn label="开始时间" width="150">
+                  <template #default="{ row }">{{ formatDateTime(row.started_at) }}</template>
+                </ElTableColumn>
+                <ElTableColumn label="结束时间" width="150">
+                  <template #default="{ row }">{{ formatDateTime(row.ended_at) }}</template>
+                </ElTableColumn>
+                <ElTableColumn label="来源" min-width="120">
+                  <template #default="{ row }">
+                    <span class="whitespace-nowrap">{{ sessionSourceText(row) }}</span>
+                  </template>
+                </ElTableColumn>
+                <ElTableColumn label="落地页" min-width="200" show-overflow-tooltip>
+                  <template #default="{ row }">
+                    <span class="mono-path">{{ row.landing_path || '—' }}</span>
+                  </template>
+                </ElTableColumn>
+                <ElTableColumn prop="event_count" label="事件数" width="80" align="right" />
+                <ElTableColumn label="停留" width="130">
+                  <template #default="{ row }">{{ formatStay(row.stay_ms) }}</template>
+                </ElTableColumn>
+              </ElTable>
+            </ElTabPane>
+
+            <!-- Tab 3：原始上报批次（raw_batch，排查"上报了为何没进报表"） -->
+            <ElTabPane label="原始数据" name="raw">
+              <div class="flex-c flex-wrap gap-2 mb-3">
+                <h3 class="m-0 text-sm font-semibold">原始上报批次</h3>
+                <span class="text-xs text-g-500">
+                  每次接收的原样存档（保留 30 天）；敏感字段已脱敏为 [FILTERED]，被拒批次超 4KB 截断
+                </span>
+              </div>
+              <ElTable
+                :data="rawBatches?.list ?? []"
+                v-loading="rawLoading"
+                empty-text="暂无原始上报数据"
+                row-class-name="session-row"
+                @row-click="openRawDrawer"
+              >
+                <ElTableColumn label="接收时间" width="170">
+                  <template #default="{ row }">{{ formatDateTime(row.received_at) }}</template>
+                </ElTableColumn>
+                <ElTableColumn label="批次 ID" min-width="150">
+                  <template #default="{ row }">
+                    <div v-if="row.batch_id" class="flex-c gap-1">
+                      <code class="session-id-code">{{ row.batch_id.slice(0, 8) }}</code>
+                      <ElButton
+                        link
+                        type="primary"
+                        size="small"
+                        @click.stop="copyBatchId(row.batch_id)"
+                      >
+                        复制
+                      </ElButton>
+                    </div>
+                    <span v-else>—</span>
+                  </template>
+                </ElTableColumn>
+                <ElTableColumn label="状态" width="100">
+                  <template #default="{ row }">
+                    <ElTag :type="rawStatus(row.status).type" size="small">
+                      {{ rawStatus(row.status).label }}
+                    </ElTag>
+                  </template>
+                </ElTableColumn>
+                <ElTableColumn prop="event_count" label="入库数" width="80" align="right" />
+                <ElTableColumn prop="rejected_count" label="拒绝数" width="80" align="right" />
+              </ElTable>
+              <div class="flex-c justify-end mt-3">
+                <ElPagination
+                  :total="rawBatches?.total ?? 0"
+                  :page-size="RAW_PAGE_SIZE"
+                  :current-page="rawPage"
+                  layout="total, prev, pager, next"
+                  @current-change="onRawPageChange"
+                />
+              </div>
+            </ElTabPane>
+          </ElTabs>
         </div>
 
-        <!-- 右列：来源证据 + 访问环境 -->
+        <!-- 中栏：4 统计卡（2×2）+ 来源证据 -->
         <div class="vd-side">
+          <!-- 4 统计卡：图标块 + 小标签 + 大数字 -->
+          <div class="vd-stats">
+            <div v-for="tile in statTiles" :key="tile.label" class="vd-card vd-stat-card">
+              <div class="vd-stat-icon">
+                <ElIcon :size="20">
+                  <component :is="tile.icon" />
+                </ElIcon>
+              </div>
+              <div class="vd-stat-body">
+                <span class="vd-stat-label">{{ tile.label }}</span>
+                <span class="vd-stat-value">{{ tile.value }}</span>
+              </div>
+            </div>
+          </div>
+
           <!-- 来源证据：三口径渠道徽章 + 证据详情子面板 -->
           <div class="vd-card vd-evidence-card">
             <div class="vd-card-head">
@@ -201,7 +299,10 @@
               </div>
             </div>
           </div>
+        </div>
 
+        <!-- 右栏：访问环境 -->
+        <div class="vd-side">
           <!-- 访问环境：档案字段行式展示 -->
           <div class="vd-card vd-env-card">
             <div class="vd-card-head">
@@ -227,106 +328,6 @@
         </div>
       </div>
 
-      <!-- 会话与原始数据（设计图外保留的既有能力，界面按新色板统一） -->
-      <div class="vd-card vd-bottom-card">
-        <ElTabs v-model="activeTab" class="detail-tabs">
-          <!-- Tab 1：会话列表 -->
-          <ElTabPane :label="`会话（${detail?.sessions.length ?? 0}）`" name="sessions">
-            <div class="flex-c gap-2 mb-3">
-              <h3 class="m-0 text-sm font-semibold">会话列表</h3>
-              <span class="text-xs text-g-500">点击行查看会话事件序列</span>
-            </div>
-            <ElTable
-              :data="detail?.sessions ?? []"
-              v-loading="profileLoading"
-              empty-text="暂无会话数据"
-              row-class-name="session-row"
-              @row-click="openSession"
-            >
-              <ElTableColumn label="会话 ID" min-width="130">
-                <template #default="{ row }">
-                  <code class="session-id-code">{{ row.session_id.slice(0, 8) }}</code>
-                </template>
-              </ElTableColumn>
-              <ElTableColumn label="开始时间" width="150">
-                <template #default="{ row }">{{ formatDateTime(row.started_at) }}</template>
-              </ElTableColumn>
-              <ElTableColumn label="结束时间" width="150">
-                <template #default="{ row }">{{ formatDateTime(row.ended_at) }}</template>
-              </ElTableColumn>
-              <ElTableColumn label="来源" min-width="120">
-                <template #default="{ row }">
-                  <span class="whitespace-nowrap">{{ sessionSourceText(row) }}</span>
-                </template>
-              </ElTableColumn>
-              <ElTableColumn label="落地页" min-width="200" show-overflow-tooltip>
-                <template #default="{ row }">
-                  <span class="mono-path">{{ row.landing_path || '—' }}</span>
-                </template>
-              </ElTableColumn>
-              <ElTableColumn prop="event_count" label="事件数" width="80" align="right" />
-              <ElTableColumn label="停留" width="130">
-                <template #default="{ row }">{{ formatStay(row.stay_ms) }}</template>
-              </ElTableColumn>
-            </ElTable>
-          </ElTabPane>
-
-          <!-- Tab 2：原始上报批次（raw_batch，排查"上报了为何没进报表"） -->
-          <ElTabPane label="原始数据" name="raw">
-            <div class="flex-c flex-wrap gap-2 mb-3">
-              <h3 class="m-0 text-sm font-semibold">原始上报批次</h3>
-              <span class="text-xs text-g-500">
-                每次接收的原样存档（保留 30 天）；敏感字段已脱敏为 [FILTERED]，被拒批次超 4KB 截断
-              </span>
-            </div>
-            <ElTable
-              :data="rawBatches?.list ?? []"
-              v-loading="rawLoading"
-              empty-text="暂无原始上报数据"
-              row-class-name="session-row"
-              @row-click="openRawDrawer"
-            >
-              <ElTableColumn label="接收时间" width="170">
-                <template #default="{ row }">{{ formatDateTime(row.received_at) }}</template>
-              </ElTableColumn>
-              <ElTableColumn label="批次 ID" min-width="150">
-                <template #default="{ row }">
-                  <div v-if="row.batch_id" class="flex-c gap-1">
-                    <code class="session-id-code">{{ row.batch_id.slice(0, 8) }}</code>
-                    <ElButton
-                      link
-                      type="primary"
-                      size="small"
-                      @click.stop="copyBatchId(row.batch_id)"
-                    >
-                      复制
-                    </ElButton>
-                  </div>
-                  <span v-else>—</span>
-                </template>
-              </ElTableColumn>
-              <ElTableColumn label="状态" width="100">
-                <template #default="{ row }">
-                  <ElTag :type="rawStatus(row.status).type" size="small">
-                    {{ rawStatus(row.status).label }}
-                  </ElTag>
-                </template>
-              </ElTableColumn>
-              <ElTableColumn prop="event_count" label="入库数" width="80" align="right" />
-              <ElTableColumn prop="rejected_count" label="拒绝数" width="80" align="right" />
-            </ElTable>
-            <div class="flex-c justify-end mt-3">
-              <ElPagination
-                :total="rawBatches?.total ?? 0"
-                :page-size="RAW_PAGE_SIZE"
-                :current-page="rawPage"
-                layout="total, prev, pager, next"
-                @current-change="onRawPageChange"
-              />
-            </div>
-          </ElTabPane>
-        </ElTabs>
-      </div>
     </template>
 
     <!-- 原始批次详情抽屉：body 是服务端脱敏后的 JSON 文本，<pre> 文本插值渲染（禁 v-html） -->
@@ -692,7 +693,7 @@
   })
 
   // ---------- 跨天时间线 ----------
-  const activeTab = ref<'sessions' | 'raw'>('sessions')
+  const activeTab = ref<'timeline' | 'sessions' | 'raw'>('timeline')
   const days = ref(30)
   /** 排序：desc=日期组最新在前+组内事件最新在前；asc=都最早在前 */
   const order = ref<'desc' | 'asc'>('desc')