| This website design is focused on improving accessibility and user-friendlessness. Keyboard shortcuts are provided to allow users to jump to various sections of each page: |
| Alt+U：Upper block, containing the main menu, and buttons for Home, Site Map, Language, Font Size and Search. |
| Alt+M：Main block，containing main features of this website. |
| Alt+C：Central block, containing main contents at the center of the page. |