.ser-banner{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:99999;background:#fff;border:1px solid #dc3545;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.15);padding:0;min-width:320px;max-width:92vw}
.ser-banner-inner{display:flex;gap:12px;align-items:center;padding:12px 16px}
.ser-banner-text{color:#000;font-size:15px}
.ser-banner-close{margin-left:auto;border:0;background:#dc3545;color:#fff;border-radius:8px;padding:6px 10px;cursor:pointer}
@media (prefers-reduced-motion:no-preference){
  .ser-banner{animation:serSlide .25s ease-out both}
  @keyframes serSlide{from{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%,0)}}
}