/* ===== Vimeo facade (style.css の末尾に追記) ===== */
.youtube .vplay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  padding: 0;
  background: #000;
  cursor: pointer;
  overflow: hidden;
}
/* 再生ボタン（Vimeo風） */
.youtube .vplay::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 72px;
  height: 44px;
  transform: translate(-50%, -50%);
  background: rgba(23, 35, 34, .75);
  border-radius: 8px;
  transition: background .15s;
}
.youtube .vplay::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-40%, -50%);
  border-style: solid;
  border-width: 11px 0 11px 19px;
  border-color: transparent transparent transparent #fff;
  z-index: 1;
}
.youtube .vplay:hover::after,
.youtube .vplay:focus-visible::after {
  background: rgba(0, 173, 239, .95); /* Vimeoブルー */
}