diff --git a/apps/frontend/src/styles/worker.css b/apps/frontend/src/styles/worker.css
index 54472d85..55d1207f 100644
--- a/apps/frontend/src/styles/worker.css
+++ b/apps/frontend/src/styles/worker.css
@@ -4310,6 +4310,12 @@ body {
   border-radius: 0 8px 8px 0;
 }
 
+/* 只有一个选项时（如苏尔南区服的「互通」）：first/last 两条规则同时命中，
+   last-child 在后会把它覆盖成"左方右圆"，这里统一四个角都是圆的 */
+.worker-consignment-chips .ant-radio-button-wrapper:only-child {
+  border-radius: 8px;
+}
+
 .worker-consignment-chips .ant-radio-button-wrapper-checked {
   background: #ff6a00;
   border-color: #ff6a00;