.back-home{position:fixed;top:24px;left:24px;z-index:999999;display:inline-flex;align-items:center;gap:6px;padding:8px 14px;font-size:13px;color:#fff;background:rgba(0,0,0,0.5);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:100px;text-decoration:none;border:1px solid rgba(255,255,255,0.15);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC',sans-serif;-webkit-tap-highlight-color:transparent;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity 0.4s ease,visibility 0.4s ease,transform 0.4s ease,background 0.25s ease}.back-home.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.back-home:hover{background:rgba(0,0,0,0.75)}@media (max-width:768px){.back-home{top:calc(16px + env(safe-area-inset-top));left:calc(16px + env(safe-area-inset-left));width:40px;height:40px;padding:0;justify-content:center;border-radius:50%}.back-home span{display:none}.back-home:active{transform:scale(0.92);background:rgba(0,0,0,0.8)}}