.sis-galeria { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2.2rem; }
.sis-captura { margin: 0; display: grid; gap: .8rem; min-width: 0; }
.sis-captura img {
  display: block; width: 100%; height: auto; border-radius: var(--radio-g);
  border: 1px solid var(--linea); box-shadow: var(--sombra); background: var(--nieve);
}
.sis-captura figcaption { display: grid; gap: .2rem; }
.sis-captura figcaption b { font-size: 1.05rem; color: var(--tinta); line-height: 1.3; }
.sis-captura figcaption span { font-size: .95rem; line-height: 1.5; color: var(--tinta-media); }
@media (min-width: 900px) {
  .sis-galeria { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.6rem 2rem; }
}