body { padding-bottom: 88px; }
.site-back-float {
  position: fixed;
  left: max(16px, env(safe-area-inset-left));
  bottom: max(18px, env(safe-area-inset-bottom));
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  min-width: 118px;
  padding: 12px 20px;
  border: 2px solid #fff9dd;
  border-radius: 28px;
  background: #f6ce49;
  color: #073b43;
  font: 700 17px/1.2 Arial, "Helvetica Neue", sans-serif;
  text-decoration: none;
  box-shadow: 0 4px 18px #001b2166, 0 0 0 3px #073b4320;
  cursor: pointer;
  touch-action: manipulation;
}
.site-back-float > span { font-size: 25px; line-height: 1; }
.site-back-float:hover { background: #ffdf6e; }
.site-back-float:focus-visible { outline: 3px solid #007f92; outline-offset: 4px; }
.site-back-float:disabled { opacity: 1; color: #073b43; cursor: default; }
@media (display-mode: standalone) {
  body { padding-bottom: calc(110px + env(safe-area-inset-bottom)); }
  .site-back-float { bottom: calc(28px + env(safe-area-inset-bottom)); }
}
@media print { .site-back-float { display: none; } }