diff --git a/index.html b/index.html
index c3c38f8..d5a9dcf 100644
--- a/index.html
+++ b/index.html
@@ -68,17 +68,32 @@ fetch('data.json?t='+Date.now()).then(r=>r.json()).then(({meta, daily})=>{
const totalInstall = valid.reduce((s,d)=>s+d.install,0);
const totalSpend = valid.reduce((s,d)=>s+d.payable_spend,0);
const totalEnroll = valid.reduce((s,d)=>s+d.enroll_session,0);
- const avgRate = (totalEnroll/totalInstall*100).toFixed(1);
+ const avgRate = totalInstall ? (totalEnroll/totalInstall*100).toFixed(1) : '0.0';
+
+ // 预算字段名会随月份变化（aug_budget / sep_budget ...），动态查找，避免写死导致渲染崩溃
+ const budgetKey = Object.keys(meta).find(k=>k.endsWith('_budget'));
+ const budget = budgetKey!=null ? meta[budgetKey] : null;
+ const fmt = v => (v==null ? '-' : Number(v).toLocaleString());
+
+ // 根据数据里的月份动态更新标题
+ if (valid.length){
+ const monthNames=['January','February','March','April','May','June','July','August','September','October','November','December'];
+ const [y,m] = valid[valid.length-1].date.split('-');
+ const title = `${monthNames[parseInt(m,10)-1]} ${y}`;
+ document.title = 'EG Nagwa Daily Report - ' + title;
+ const sub = document.querySelector('.subtitle');
+ if (sub) sub.innerHTML = 'Egypt · ' + title + ' · Install / Enroll Session / Revenue';
+ }
document.getElementById('summary').innerHTML = `
Total Install (MTD)
${totalInstall.toLocaleString()}
Total Enroll Session
${totalEnroll.toLocaleString()}
Avg Enroll Rate
${avgRate}%
Total Spend
$${totalSpend.toFixed(2)}
Budget
$${meta.aug_budget.toLocaleString()}
Budget Left
$${meta.left.toLocaleString()}
Budget Used
${meta.spend_pct}
Rec. Daily Install
${meta.rec_daily_install.toLocaleString()}
Budget Left
$${fmt(meta.left)}
Budget Used
${meta.spend_pct||'-'}
Rec. Daily Install
${fmt(meta.rec_daily_install)}