body { padding-bottom: calc(76px + env(safe-area-inset-bottom, 0px)); }
#yitu-home {
  position: fixed;
  right: calc(12px + env(safe-area-inset-right, 0px));
  bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 46px;
  padding: 10px 14px;
  border: 1px solid #d4ddd2;
  border-radius: 24px;
  background: #183a37;
  color: #fffef8;
  box-shadow: 0 3px 12px #183a3730;
  font: 600 14px/1.4 -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  text-decoration: none;
  white-space: nowrap;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}
#yitu-home:hover { background: #236558; }
#yitu-home:focus-visible { outline: 3px solid #a87920; outline-offset: 3px; }
#yitu-home[data-dragging="true"] { cursor: grabbing; box-shadow: 0 5px 18px #183a3750; }
#yitu-home svg { width: 18px; height: 18px; flex: none; }
#yitu-home-hint { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
@media print { #yitu-home, #yitu-home-hint { display: none; } body { padding-bottom: 0; } }