.bd-back-top{position:fixed;right:25px;bottom:25px;width:48px;height:48px;border:1px solid rgba(255,255,255,.2);border-radius:14px;background:#b28735;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:99999;opacity:0;visibility:hidden;transform:translateY(15px);transition:all .3s ease;box-shadow:0 8px 25px rgba(0,0,0,.18)}.bd-back-top.show{opacity:1;visibility:visible;transform:translateY(0)}.bd-back-top:hover{background:#222;transform:translateY(-4px)}.bd-back-top svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}@media (max-width:767px){.bd-back-top{right:16px;bottom:20px;width:44px;height:44px}}@media (prefers-reduced-motion:reduce){.bd-back-top{transition:none}}