.pk-backtop{position:fixed;right:max(20px,env(safe-area-inset-right));bottom:calc(22px + env(safe-area-inset-bottom));z-index:90;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;min-width:48px;padding:11px 16px;border:1px solid #253f7c;border-radius:14px;background:#fff;color:#253f7c;box-shadow:0 4px 20px #172b4d26;font:600 14px/1.4 'Segoe UI',Arial,sans-serif;cursor:pointer;touch-action:manipulation}
.pk-backtop[hidden]{display:none!important}
.pk-backtop span:first-child{font-size:22px;line-height:1}
.pk-backtop:hover{background:#f0f3fa}
.pk-backtop:focus-visible{outline:3px solid #a68338;outline-offset:3px}
@media(max-width:600px){.pk-backtop{right:16px;bottom:calc(18px + env(safe-area-inset-bottom));padding:10px 13px}}