.login-surface{background-color:var(--color-bg);position:relative;isolation:isolate}.login-surface:before{content:"";position:absolute;inset:0;z-index:-1;background-image:url(/assets/rice_otp_svg_assets/01_login_background.svg);background-size:cover}.login-surface:before,.sack-frame{background-position:50%;background-repeat:no-repeat}.sack-frame{background-image:url(/assets/rice_otp_svg_assets/02_sack_login_frame.svg);background-size:100% 100%}