body,h1,h2,h3,p,ul,ol,dl,figure{margin:0;padding:0}
*{box-sizing:border-box}
body{font-family:-apple-system,"Segoe UI",Roboto,sans-serif;color:#252a33;
     background:white}
@media (max-width:640px){
  .b-qa-wrap{padding:30px 18px!important}
  .b-qa-lead{font-size:24px!important}
  .b-qa-foot{flex-direction:column!important;gap:12px!important;align-items:flex-start!important}
}