Hi Luo,
Your second sreenshot shows the SAP CORBU theme.
In order to get this running in SAP NetWeaver Business Client for HTML do the following:
Go to transaction SICF and Navigate to service "NWBC". Open it. Go to tab “Error”. There is a button called “Configuration” on the bottom of the page
In section logon layout and procedure you can then choose a different theme.In your case SAP Corbu.
Furthermore you need to add/maintain an entry in table NWBC_CFG.
Please try values
IDX = IDX
NAME = THEME_NAME
VALUE = sap_corbu
and leave other fields blank
Best of luck,
René