/* v230 current-page back-to-top floating button: mobile safe-area refinement */
  .floating-top-btn{
    appearance:none;
    -webkit-appearance:none;
    border:0;
    position:fixed;
    right:32px;
    bottom:32px;
    z-index:30;
    width:58px;
    height:58px;
    border-radius:50%;
    background:#111;
    color:#fff;
    display:grid;
    place-items:center;
    font:inherit;
    font-size:24px;
    line-height:1;
    box-shadow:0 14px 34px rgba(0,0,0,.2);
    cursor:pointer;
    touch-action:manipulation;
    -webkit-tap-highlight-color:transparent;
    transition:transform .25s ease, background .25s ease, box-shadow .25s ease;
  }
  .floating-top-btn:hover{
    transform:translateY(-5px) scale(1.04);
  }
  .floating-top-btn:focus-visible{
    outline:2px solid #111;
    outline-offset:3px;
  }
  @media(max-width:720px){
    .floating-top-btn{
      width:48px;
      height:48px;
      right:18px;
      bottom:18px;
      bottom:calc(18px + env(safe-area-inset-bottom, 0px));
      font-size:21px;
    }
  }