*{box-sizing:border-box}html,body{height:100%}body{color:var(--color-text);background:var(--color-app-bg);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans JP,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}img,video,canvas{max-width:100%}