update style

src/layout/MainLayout/Header/index.js

@@ -870,7 +870,7 @@ function Header(props) {
                 <Stack direction="row" justifyContent="space-between" alignItems="center" width="100%">
                   <MobileLogo />
                   <Stack justifyContent="flex-start" alignItems="flex-start" width="100%" ml={2}>
-                    <span style={{ color: checkSysEnv() !== "" ? "red" : "#1976d2" }} id="mobileTitle">
+                    <span style={{ color: checkSysEnv() !== "" ? "red" : "#000" }} id="mobileTitle">
                       <FormattedMessage id="PNSPS" />
                     </span>
                   </Stack>