/* 忖度なし子：共通「← 戻る」ボタン（小さめ・目立ちすぎない・PC/スマホ対応） */
.sn-backbar{
  text-align:left;
  margin:14px 0 10px;
  padding:0;
  line-height:1;
}
.sn-back{
  display:inline-flex;align-items:center;gap:5px;
  font-family:"Zen Maru Gothic",sans-serif;font-weight:900;font-size:13px;line-height:1;
  color:#171215;background:#fff;
  border:2px solid #171215;border-radius:999px;
  padding:8px 15px;text-decoration:none;white-space:nowrap;
  box-shadow:2px 2px 0 rgba(23,18,21,.12);
  transition:transform .08s ease,box-shadow .08s ease,background .15s ease;
  cursor:pointer;
}
.sn-back:hover{background:#FFE9F0}
.sn-back:active{transform:translate(1px,1px);box-shadow:1px 1px 0 rgba(23,18,21,.12)}
.sn-back:focus-visible{outline:3px solid #FF3D74;outline-offset:2px}
.sn-back-arrow{font-size:14px;font-weight:900}

/* スマホ：タップしやすい高さを確保しつつ小さめの見た目を維持 */
@media(max-width:600px){
  .sn-backbar{margin:10px 0 8px}
  .sn-back{font-size:13px;padding:10px 16px}
}