This website is designed in accordance with the principles of 'Accessibility Web Development Guidelines', and provides web guide tiles (:::), site navigation (Site Navigator), keyboard shortcuts (Access Key) and other design methods in accordance with the standards of accessible website design.

The following is a description of how to use keyboard shortcuts (Access Key) for this website:

Alt+U: The upper functional block, this block has links to various items on this website.

Alt+C: Central content block, this block presents the main content of each webpage.

Alt+B: Lower functional block.

Alt+S: website search.