diff --git a/src/components/device/TrajectoryDialog.vue b/src/components/device/TrajectoryDialog.vue
index fe16e38..07be56d 100644
--- a/src/components/device/TrajectoryDialog.vue
+++ b/src/components/device/TrajectoryDialog.vue
@@ -84,12 +84,12 @@
         />
         <el-table v-else :data="trajectoryPoints" border size="mini" max-height="420" class="trajectory-table">
           <el-table-column label="#" type="index" width="60" align="center" />
-          <el-table-column :label="$t('device.trajectory.table.time')" min-width="180" align="center">
+          <el-table-column :label="$t('device.trajectory.table.time')" min-width="100" align="center">
             <template slot-scope="scope">
               {{ formatTrackTime(scope.row.locationTime || scope.row.reportedTime || scope.row.createTime) }}
             </template>
           </el-table-column>
-          <el-table-column :label="$t('device.trajectory.table.coordinates')" min-width="220" align="center">
+          <el-table-column :label="$t('device.trajectory.table.coordinates')" min-width="60" align="center">
             <template slot-scope="scope">
               {{ formatTrackCoordinates(scope.row.lat, scope.row.lng) }}
             </template>
@@ -116,19 +116,27 @@ import { loadAMap } from "@/utils/loadAMap";
 import { loadGoogleMaps } from "@/utils/loadGoogleMaps";
 import { loadLeaflet } from "@/utils/loadLeaflet";
 
+// 轨迹点未加载前，各地图默认中心点。
 const AMAP_DEFAULT_CENTER = [121.4737, 31.2304];
 const GOOGLE_DEFAULT_CENTER = { lat: 31.2304, lng: 121.4737 };
 const LEAFLET_DEFAULT_CENTER = [31.2304, 121.4737];
-const AMAP_FALLBACK_MAX_ZOOM = 20;
-const GOOGLE_DETAIL_ZOOM = 21;
-const LEAFLET_MAX_ZOOM = 22;
-const LEAFLET_GOOGLE_MAX_ZOOM = 20;
+
+// 各地图默认/详情缩放级别。
+const AMAP_FALLBACK_MAX_ZOOM = 17;
+const GOOGLE_DETAIL_ZOOM = 16;
+const LEAFLET_MAX_ZOOM = 16;
+const LEAFLET_GOOGLE_MAX_ZOOM = 17;
+
+// Leaflet + Google 瓦片地址与轨迹线样式。
 const LEAFLET_GOOGLE_TILE_URL = "https://mt1.google.com/vt/lyrs=m&x={x}&y={y}&z={z}";
 const LEAFLET_LINE_ARROW_MAX = 36;
 const LEAFLET_SHOW_LINE_ARROWS = false;
 const LEAFLET_TRAJECTORY_LINE_COLOR = "#1a73e8";
-const CONVERT_BATCH_SIZE = 40;
-const MAX_TRAJECTORY_POINTS = 100;
+
+// 坐标转换与渲染数量上限。
+const CONVERT_BATCH_SIZE = 500;
+
+// 轨迹压缩阈值（用于减少长时间停留产生的密集点）。
 
 export default {
   name: "DeviceTrajectoryDialog",
@@ -300,22 +308,17 @@ export default {
       try {
         const response = await getDeviceTrajectory(this.device.id, this.buildTrajectoryQuery());
         const data = Array.isArray(response.data) ? response.data : [];
-        const validPoints = data
-          .map((item) => {
-            const latNum = this.normalizeCoordinate(item.lat, "lat");
-            const lngNum = this.normalizeCoordinate(item.lng, "lng");
-            return {
-              ...item,
-              latNum,
-              lngNum,
-            };
-          })
-          .filter((item) => item.latNum !== null && item.lngNum !== null);
-        const sortedPoints = validPoints.slice().sort((left, right) => {
-          return this.getTrackTimestamp(left) - this.getTrackTimestamp(right);
+        const normalizedPoints = data.map((item) => {
+          const latNum = this.normalizeCoordinate(item.lat, "lat");
+          const lngNum = this.normalizeCoordinate(item.lng, "lng");
+          return {
+            ...item,
+            latNum,
+            lngNum,
+          };
         });
-        this.totalTrajectoryCount = sortedPoints.length;
-        this.trajectoryPoints = sortedPoints.slice(-MAX_TRAJECTORY_POINTS);
+        this.totalTrajectoryCount = normalizedPoints.length;
+        this.trajectoryPoints = normalizedPoints;
       } catch (error) {
         this.trajectoryPoints = [];
         this.totalTrajectoryCount = 0;
@@ -802,8 +805,13 @@ export default {
       this.map.add(this.polyline);
       this.map.add(this.markers);
 
-      const detailZoom = this.getAmapMaxZoom();
-      this.map.setZoomAndCenter(detailZoom, endPoint);
+      // 多点：自动适配全貌
+if (path.length > 1) {
+  this.map.setFitView([this.polyline].concat(this.markers), false, [60, 60, 60, 60]);
+} else {
+  // 单点：给一个适中的细节级别
+  this.map.setZoomAndCenter(16, startPoint);
+}
     },
     renderGoogleTrajectory() {
       if (!this.map || !this.mapsApi || !this.trajectoryPoints.length) {
@@ -1038,26 +1046,34 @@ export default {
       if (!Array.isArray(this.trajectoryPoints) || !this.trajectoryPoints.length) {
         return [];
       }
-      if (this.trajectoryPoints.length < 2) {
-        return this.trajectoryPoints.slice();
+      const mapPoints = this.trajectoryPoints.filter((item) => item.latNum !== null && item.lngNum !== null);
+      if (mapPoints.length < 2) {
+        return mapPoints;
       }
-      const firstTs = this.getTrackTimestamp(this.trajectoryPoints[0]);
-      const lastTs = this.getTrackTimestamp(this.trajectoryPoints[this.trajectoryPoints.length - 1]);
-      if (firstTs > 0 && lastTs > 0 && firstTs > lastTs) {
-        return this.trajectoryPoints.slice().reverse();
+      const firstTime = this.getTrackTimestamp(mapPoints[0]);
+      const lastTime = this.getTrackTimestamp(mapPoints[mapPoints.length - 1]);
+      if (firstTime > 0 && lastTime > 0 && firstTime > lastTime) {
+        return mapPoints.slice().reverse();
       }
-      return this.trajectoryPoints.slice();
+      return mapPoints;
     },
     getTrackTimestamp(point) {
       if (!point) {
         return 0;
       }
-      const value = point.locationTime || point.reportedTime || point.createTime;
-      if (!value) {
+      const rawValue = point.locationTime || point.reportedTime || point.createTime;
+      if (rawValue === undefined || rawValue === null || rawValue === "") {
+        return 0;
+      }
+      if (typeof rawValue === "number") {
+        return Number.isFinite(rawValue) ? rawValue : 0;
+      }
+      const text = String(rawValue).trim();
+      if (!text) {
         return 0;
       }
-      const timestamp = new Date(value).getTime();
-      return Number.isFinite(timestamp) ? timestamp : 0;
+      const parsed = new Date(text.replace(/-/g, "/")).getTime();
+      return Number.isFinite(parsed) ? parsed : 0;
     },
     escapeHtml(value) {
       return String(value)
diff --git a/src/views/system/user/index.vue b/src/views/system/user/index.vue
index 50898b4..cd83ed5 100644
--- a/src/views/system/user/index.vue
+++ b/src/views/system/user/index.vue
@@ -271,17 +271,12 @@
     </el-dialog>
 
     <el-dialog
-      :title="$t('systemUser.deviceDialog.title')"
+      :title="`${$t('systemUser.deviceDialog.title')} - ${$t('systemUser.deviceDialog.selectedUser')}: ${getUserDeviceOwnerLabel()}`"
       :visible.sync="userDeviceOpen"
       width="980px"
       append-to-body
       @close="resetUserDeviceDialog"
     >
-      <div class="page-footer-meta">
-        <strong>{{ $t("systemUser.deviceDialog.selectedUser") }}:</strong>
-        <span>{{ getUserDeviceOwnerLabel() }}</span>
-      </div>
-
       <el-form
         ref="userDeviceQueryForm"
         :model="userDeviceQueryParams"
@@ -356,7 +351,7 @@
       >
         <el-table-column type="selection" width="50" align="center" />
         <el-table-column :label="$t('systemUser.deviceDialog.table.id')" align="center" prop="id" width="90" />
-        <el-table-column :label="$t('systemUser.deviceDialog.table.sn')" align="center" prop="sn" :show-overflow-tooltip="true" />
+        <el-table-column :label="$t('systemUser.deviceDialog.table.sn')" align="center" prop="sn" min-width="240" :show-overflow-tooltip="true" />
         <el-table-column :label="$t('systemUser.deviceDialog.table.model')" align="center" prop="model" :show-overflow-tooltip="true" />
         <el-table-column :label="$t('systemUser.deviceDialog.table.orderCode')" align="center" prop="orderCode" :show-overflow-tooltip="true" />
         <el-table-column :label="$t('systemUser.deviceDialog.table.alias')" align="center" prop="alias" :show-overflow-tooltip="true" />