优化告警详情弹窗样式：加宽至720px、详情区域可滚动max-height 200px、pre-wrap换行、缩小标签宽度

frontend/src/views/alert/AlertPage.vue

@@ -88,19 +88,21 @@
     />
 
     <!-- 告警详情弹窗 -->
-    <el-dialog v-model="detailVisible" title="告警详情" width="600px" destroy-on-close>
-      <el-descriptions :column="1" border size="small">
-        <el-descriptions-item label="告警时间">{{ detailRow.createdAt }}</el-descriptions-item>
-        <el-descriptions-item label="告警类型">
+    <el-dialog v-model="detailVisible" title="告警详情" width="720px" destroy-on-close top="5vh">
+      <el-descriptions :column="1" border size="small" class="alert-detail-desc">
+        <el-descriptions-item label="告警时间" min-width="80">{{ detailRow.createdAt }}</el-descriptions-item>
+        <el-descriptions-item label="告警类型" min-width="80">
           <el-tag :type="alertTypeTag(detailRow.alertType)" size="small">{{ alertTypeLabel(detailRow.alertType) }}</el-tag>
         </el-descriptions-item>
-        <el-descriptions-item label="标题">{{ detailRow.title }}</el-descriptions-item>
-        <el-descriptions-item label="机床">{{ detailRow.machineName || '-' }}</el-descriptions-item>
-        <el-descriptions-item label="详情">{{ detailRow.detail }}</el-descriptions-item>
-        <el-descriptions-item label="处理状态">
+        <el-descriptions-item label="标题" min-width="80">{{ detailRow.title }}</el-descriptions-item>
+        <el-descriptions-item label="机床" min-width="80">{{ detailRow.machineName || '-' }}</el-descriptions-item>
+        <el-descriptions-item label="详情" min-width="80">
+          <div class="alert-detail-text">{{ detailRow.detail }}</div>
+        </el-descriptions-item>
+        <el-descriptions-item label="处理状态" min-width="80">
           <el-tag :type="detailRow.isResolved ? 'success' : 'danger'" size="small">{{ detailRow.isResolved ? '已处理' : '未处理' }}</el-tag>
         </el-descriptions-item>
-        <el-descriptions-item label="处理时间">{{ detailRow.resolvedAt || '-' }}</el-descriptions-item>
+        <el-descriptions-item label="处理时间" min-width="80">{{ detailRow.resolvedAt || '-' }}</el-descriptions-item>
       </el-descriptions>
       <template #footer><el-button @click="detailVisible = false">关闭</el-button></template>
     </el-dialog>
@@ -222,3 +224,19 @@ onMounted(() => {
   loadDrops()
 })
 </script>
+
+<style scoped>
+.alert-detail-text {
+  max-height: 200px;
+  overflow-y: auto;
+  white-space: pre-wrap;
+  word-break: break-all;
+  font-size: 13px;
+  line-height: 1.6;
+  color: #303133;
+  padding: 4px 0;
+}
+.alert-detail-desc :deep(.el-descriptions__label) {
+  width: 80px;
+}
+</style>