.vn-back-to-top{align-items:center;backdrop-filter:blur(6px);background:linear-gradient(180deg,#005a5b,#004748);border:none;border-radius:999px;bottom:24px;box-shadow:0 10px 22px rgba(0,90,91,.25);color:#fff;cursor:pointer;display:flex;font-size:14px;font-weight:600;gap:12px;line-height:1;opacity:0;padding:10px 14px 10px 16px;position:fixed;right:max(24px,calc(50vw - 580px));transform:translateY(12px);transition:opacity .3s ease,transform .3s ease,box-shadow .3s ease;visibility:hidden;z-index:9999}.vn-back-to-top:hover{box-shadow:0 14px 28px rgba(0,90,91,.3);transform:translateY(-3px)}.vn-back-to-top.show{opacity:1;transform:translateY(0);visibility:visible}.vn-back-to-top-text{white-space:nowrap}.vn-back-to-top-icon-wrap{align-items:center;display:flex;flex:0 0 28px;height:28px;justify-content:center;position:relative;width:28px}.vn-progress-ring{inset:0;overflow:visible;position:absolute;transform:rotate(-90deg)}.vn-progress-ring-bg,.vn-progress-ring-fill{fill:none;stroke-width:2}.vn-progress-ring-bg{stroke:hsla(0,0%,100%,.2)}.vn-progress-ring-fill{stroke:hsla(0,0%,100%,.95);stroke-dasharray:69.12;stroke-dashoffset:69.12;stroke-linecap:round;transition:stroke-dashoffset .15s linear}.vn-arrow-icon{display:block;position:relative;z-index:2}@media (max-width:1200px){.vn-back-to-top{right:16px}}@media (max-width:768px){.vn-back-to-top{padding:10px 12px}.vn-back-to-top-text{display:none}}