update pay function

src/views/Community/components/InvestmentCalendar.js

@@ -840,7 +840,7 @@ const InvestmentCalendar = () => {
                 )}
             </Modal>
 
-            {/* K线图弹窗 */}
+            {/* K线图弹窗 - 需要更高的 z-index，因为投资日历本身就是 Modal */}
             {selectedStock && (
                 <KLineChartModal
                     isOpen={klineModalVisible}
@@ -851,6 +851,8 @@ const InvestmentCalendar = () => {
                     }}
                     stock={selectedStock}
                     eventTime={selectedEventTime}
+                    size="5xl"
+                    zIndex={2000}
                 />
             )}