.site-back-to-top{position:fixed;right:calc(24px + env(safe-area-inset-right,0px));bottom:calc(24px + env(safe-area-inset-bottom,0px));z-index:1000;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;width:56px;height:56px;padding:0;border:1px solid #ffffffb3;border-radius:50%;background:#167a82;color:#fff;box-shadow:0 5px 20px #145e6830;cursor:pointer;transition:background .2s,transform .2s;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.site-back-to-top svg{width:23px;height:23px}.site-back-to-top span{font:600 9px/1.2 sans-serif;letter-spacing:.12em}
@media(hover:hover){.site-back-to-top:hover{background:#0e646e;transform:translateY(-3px)}}
.site-back-to-top:focus-visible{outline:3px solid #d1af50;outline-offset:4px}
@media(max-width:800px){.site-back-to-top{width:48px;height:48px;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px))}.site-back-to-top svg{width:21px;height:21px}.site-back-to-top span{font-size:8px}}
@media(prefers-reduced-motion:reduce){.site-back-to-top{transition:none}}