v3.1.3 — 财务弹窗UI优化：分区卡片布局+月网格+圆角+更大尺寸

backend/flask_app.py

@@ -319,11 +319,11 @@ def attach_common(conn, resource, items):
 def monthly_finance(conn, tenant="科普·无界"):
     from datetime import date
     today = date.today()
-    # 12 months: 9 before + current + 2 after
+    # 6 months: 3 before + current + 2 after
     from dateutil.relativedelta import relativedelta
-    start = today + relativedelta(months=-9)
+    start = today + relativedelta(months=-3)
     months = []
-    for i in range(12):
+    for i in range(6):
         m = start + relativedelta(months=i)
         months.append(m.strftime("%Y-%m"))
     data = []