.webinstante-banner {
  min-height: 380px;
  background-size: cover;
  background-position: center right;
  display: flex;
  align-items: center;      /* centro vertical */
  justify-content: center;  /* centro horizontal */
  text-align: center;
}
.banner {
  background: rgba(0, 0, 0, 0.45);   /* color translúcido */
  backdrop-filter: blur(6px);        /* efecto cristal (opcional) */
  -webkit-backdrop-filter: blur(6px);
  padding: 32px 36px;
  border-radius: 10px;
  max-width: 560px;
  color: #fff;
}