.pt-card-visual{
  display:flex;align-items:center;justify-content:center;width:100%;min-width:0;
  padding:8px;border:1px solid #D6E4EF;border-radius:11px;
  background:linear-gradient(145deg,#F8FBFF 0%,#EDF5FA 100%);overflow:hidden
}
.pt-card-board-wrap{
  display:block;width:146px;max-width:100%;aspect-ratio:1;border:1px solid #C7D8E6;
  border-radius:8px;overflow:hidden;background:#fff;box-shadow:0 8px 18px -13px rgba(30,63,103,.7)
}
.pt-card-board{display:block;width:100%;height:100%}
.pt-card-piece.is-white{filter:drop-shadow(0 .3px .25px rgba(0,0,0,.34))}
.pt-card-piece.is-black{filter:drop-shadow(0 .25px .2px rgba(255,255,255,.3))}
@media(max-width:1080px){.pt-card-board-wrap{width:132px}}
@media(max-width:620px){
  body.practice-tool-page :is(.pc-trainers,.eg-trainers,.si-trainers,.calc-trainers,.pj-trainers,.pt-related-grid),
  .co-links{grid-template-columns:minmax(0,1fr)}
  .pt-card-board-wrap{width:158px}
}