.about-introduction__motion {
  position: relative;
  isolation: isolate;
  grid-column: 4 / span 3;
  grid-row: 1;
}

.about-portrait-motion__canvas {
  position: absolute;
  z-index: 0;
  pointer-events: none;
}

.about-introduction__motion > .about-introduction__photo {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  max-width: none;
}

@media (min-width: 621px) {
  /* Let the copy set the height; fit the complete mesh inside the other half. */
  .about-introduction__motion {
    container-type: size;
    align-self: stretch;
    justify-self: stretch;
  }

  .about-introduction__motion > .about-introduction__photo,
  .about-portrait-motion__canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    height: auto;
    aspect-ratio: 1;
  }

  .about-portrait-motion__canvas { width: min(100cqw, 100cqh); }
  .about-introduction__motion > .about-introduction__photo { width: min(66.6667cqw, 66.6667cqh); }
}

@media (max-width: 620px) {
  .about-introduction__motion {
    grid-column: 1;
    justify-self: center;
    width: 65%;
    max-width: 240px;
    aspect-ratio: 1;
    margin-block: min(16.25%, 60px);
  }

  .about-portrait-motion__canvas {
    inset: -25%;
    width: 150%;
    height: 150%;
  }
}