条遮挡 */
left: 50%;
transform: translateX(-50%);
background: rgba(0, 0, 0, 0.85);
color: #fff;
padding: 8px 20px;
border-radius: 40px;
font-size: 14px;
z-index: 10000;
white-space: nowrap;
pointer-events: none;
animation: fadeOut 2s forwards;
}
@keyframes fadeOut {
0% { opacity: 1; }
70% { opacity: 1; }
100% { opacity: 0; visibility: hidden; }
}
}