diff --git a/web/public/app.js b/web/public/app.js
index 7a15f75..2b28a5c 100644
--- a/web/public/app.js
+++ b/web/public/app.js
@@ -9,7 +9,16 @@ function today() {
   const day = String(now.getDate()).padStart(2, '0');
   return `${year}-${month}-${day}`;
 }
-function formatDate(value) { return value ? new Intl.DateTimeFormat('zh-CN', { year: 'numeric', month: 'long', day: 'numeric', weekday: 'short' }).format(new Date(`${value}T00:00:00`)) : '—'; }
+function formatDate(value) {
+  if (!value) return '—';
+  const match = String(value).match(/^(\d{4})-(\d{2})-(\d{2})/);
+  if (!match) return String(value);
+  const [, year, month, day] = match;
+  const date = new Date(Number(year), Number(month) - 1, Number(day));
+  return new Intl.DateTimeFormat('zh-CN', {
+    year: 'numeric', month: 'long', day: 'numeric', weekday: 'short',
+  }).format(date);
+}
 function formatTime(value) { return value ? new Intl.DateTimeFormat('zh-CN', { month: 'short', day: 'numeric' }).format(new Date(value)) : '近期'; }
 
 async function loadHealth() {
diff --git a/web/server.js b/web/server.js
index faf4129..388804c 100644
--- a/web/server.js
+++ b/web/server.js
@@ -215,7 +215,7 @@ async function listReports(query) {
   const total = countResult.rows[0].count;
   params.push(pageSize, (page - 1) * pageSize);
   const result = await pool.query(`
-    SELECT r.id, r.report_date, r.title, r.introduction, r.item_count,
+    SELECT r.id, r.report_date::text AS report_date, r.title, r.introduction, r.item_count,
            r.status, r.email_status, r.created_at,
            COALESCE(json_agg(json_build_object(
              'id', a.id, 'title', a.title, 'translated_title', a.translated_title,