.message-center{display:flex;position:fixed;top:50%;left:50%;flex-direction:column;align-items:center;gap:8px;transform:translate(-50%,-50%);z-index:10000}.message-item{animation:fadeIn .3s ease;cursor:pointer;border-radius:6px;background-color:#000c;padding:10px 24px;min-width:145px;max-width:300px;color:#fff;font-size:14px;text-align:center}@keyframes fadeIn{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}