.roi-banner-mobile {
  background-color: #f2f2f2;
  padding: 1.5rem;
  border-radius: 10px;
  margin: 1rem;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.roi-header {
  text-align: center;
  margin-bottom: 1rem;
}

.roi-header h1 {
  font-size: 1.5rem;
  color: #0b5ed7;
}

.roi-header p {
  font-style: italic;
  color: #555;
}

.roi-photo img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 1rem;
  box-shadow: 0 0 5px rgba(0,0,0,0.2);
}

.roi-description {
  font-size: 0.95rem;
  color: #333;
  line-height: 1.5;
}

/* Cacher sur écrans plus grands */
@media (min-width: 768px) {
  .roi-banner-mobile {
    display: none;
  }
}