.avantage-card { position: relative; }
.avantage-card__index {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-line);
  margin-bottom: var(--space-1);
}
.avantage-card h3 { font-size: 1.05rem; margin-bottom: 0.4em; }