diff --git a/src/features/payment/hooks/useThirdPartyPaymentPage.js b/src/features/payment/hooks/useThirdPartyPaymentPage.js
index 77e0265..e8f6997 100644
--- a/src/features/payment/hooks/useThirdPartyPaymentPage.js
+++ b/src/features/payment/hooks/useThirdPartyPaymentPage.js
@@ -153,7 +153,7 @@ export function useThirdPartyPaymentPage() {
 
     const submitSyncRates = async (event) => {
         event?.preventDefault();
-        // 上浮比例只表达运营策略，不在前端计算最终汇率；服务端会拉实时源、套用比例并按 1 位小数向上取整，避免旧页面数据参与写库。
+        // 上浮比例只表达运营策略，不在前端计算最终汇率；服务端会拉实时源、套用比例并按高汇率整数规则向上取整，避免旧页面数据参与写库。
         if (!abilities.canUpdateThirdParty) {
             return;
         }