This site complies with Web Content Accessibility Conformance A+. Form controls are properly grouped and labelled
Navigation links are grouped, with "invisible" links to skip to content provided.
Important navigation links have shortcut keys to enable quick access, shown below:
Alt+U：top of the function blocks, including Home, WebSite Map, mobile version selection,area-based site's main menu.
Alt+C：Navigation on the top block, area-based site's sub menu.
Alt+Z：Central content block, the main content area of this page.
Alt+S：Search box in every page for searching this site.