feat: 大屏幕的页面

static/js/app.js

@@ -300,6 +300,15 @@ WeatherApp.updateSummaryPanel = function(historyData, forecastData){
         const futureSum = [r1,r2,r3].reduce((s,v)=> s + (v!=null?Number(v):0), 0);
         if (elFuture) elFuture.textContent = `未来1~3小时降雨 ${fmt(futureSum)} 毫米`;
 
+        // 超过阈值(>0.4mm)触发 Summary 面板橙色预警样式
+        try {
+            const panel = document.getElementById('summaryPanel');
+            if (panel) {
+                if (futureSum > 0.4) panel.classList.add('alert-on');
+                else panel.classList.remove('alert-on');
+            }
+        } catch {}
+
         // --- 过去预报准确率（按小时分档 [0,5), [5,10), [10,∞)）---
         const bucketOf = (mm)=>{
             if (mm==null || isNaN(Number(mm))) return null;