:root{--background:#f3f8ff;--foreground:#17243a;--font-sans:ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono:"SFMono-Regular", Consolas, "Liberation Mono", monospace}html{min-height:100%}html,body{max-width:100vw;overflow-x:hidden}body{min-height:100%;color:var(--foreground);background:var(--background);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;margin:0;padding:0}button,textarea{touch-action:manipulation}a{color:inherit;text-decoration:none}:focus-visible{outline-offset:2px;outline:3px solid #257eff61}