.transition-slice-top{position:relative;width:100%;height:100px;clip-path:polygon(0 0,100% 70%,100% 100%,0 100%)}.transition-slice-bottom{position:relative;width:100%;height:100px;margin-top:-1px;clip-path:polygon(0 0,100% 0,100% 30%,0 100%)}.scroll-top-btn{background:#ffffff40;color:#000;width:56px;height:56px;border-radius:20px;font-size:1.4rem;font-weight:700;display:flex;align-items:center;justify-content:center;cursor:pointer;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.4);box-shadow:0 8px 25px #00000026,inset 0 2px 8px #ffffffce,inset 0 -2px 6px #0000000d;transition:all .35s ease;transform:translateY(20px);opacity:0;pointer-events:none}.scroll-top-visible{opacity:1;pointer-events:auto;transform:translateY(0)}.scroll-top-btn:hover{transform:translateY(-6px) scale(1.06);box-shadow:0 14px 35px #00000040,inset 0 2px 10px #ffffff73,inset 0 -2px 8px #00000014}.scroll-top-btn:after{content:"↑";font-size:1.4rem;font-weight:900;color:#111}