/* 額は画像の外側に置き、ゲーム画面と既存の配置を保つ。 */
.gallery-corner,
.gallery-expand,
.gallery-viewer:not([open]) { display: none; }

body.detail-polish .gallery-frame {
  position: relative;
  width: min(900px, 100%);
  margin: 18px auto 0;
  isolation: isolate;
}
body.detail-polish .gallery-frame::before {
  content: "";
  position: absolute;
  inset: -6px;
  border: 1px solid rgba(132, 208, 171, .48);
  border-radius: 22px;
  pointer-events: none;
  box-shadow: 0 0 20px rgba(74, 139, 108, .08);
}
body.detail-polish .gallery-frame .screenshot-slider {
  width: 100%;
  margin: 0;
  border-color: rgba(149, 215, 181, .65);
}
body.detail-polish .gallery-corner {
  display: block;
  position: absolute;
  z-index: 4;
  width: 24px;
  height: 24px;
  background: url("assets/ornament-leaf.svg") center / contain no-repeat;
  pointer-events: none;
  opacity: .87;
}
body.detail-polish .gallery-corner--tl { left: -28px; top: -14px; transform: rotate(90deg); }
body.detail-polish .gallery-corner--tr { right: -28px; top: -14px; transform: scaleX(-1) rotate(90deg); }
body.detail-polish .gallery-corner--bl { left: -28px; bottom: -14px; transform: scaleY(-1) rotate(90deg); }
body.detail-polish .gallery-corner--br { right: -28px; bottom: -14px; transform: scale(-1) rotate(90deg); }
body.detail-polish .gallery-expand {
  display: block;
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  border-radius: inherit;
  color: #c4e5d5;
  background: transparent;
  cursor: zoom-in;
}
body.detail-polish .gallery-expand::after {
  content: "";
  position: absolute;
  right: 10px;
  bottom: 6px;
  width: 12px;
  height: 12px;
  background:
    linear-gradient(currentColor, currentColor) top left / 5px 1px,
    linear-gradient(currentColor, currentColor) top left / 1px 5px,
    linear-gradient(currentColor, currentColor) bottom right / 5px 1px,
    linear-gradient(currentColor, currentColor) bottom right / 1px 5px;
  background-repeat: no-repeat;
  opacity: .7;
}
body.detail-polish .gallery-expand:focus-visible {
  outline: 2px solid #b4ecd1;
  outline-offset: -5px;
}
body.detail-polish .gallery-viewer[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 10px;
  width: min(1180px, calc(100vw - 24px));
  height: min(920px, calc(100dvh - 24px));
  max-width: none;
  max-height: calc(100dvh - 24px);
  margin: auto;
  padding: 12px;
  border: 1px solid rgba(149, 215, 181, .7);
  border-radius: 12px;
  background: #0c1d1b;
  color: #e4eee8;
  box-shadow: 0 16px 70px rgba(0, 0, 0, .65);
  overflow: hidden;
}
body.detail-polish .gallery-viewer::backdrop { background: rgba(2, 10, 10, .88); }
body.detail-polish .gallery-viewer__header,
body.detail-polish .gallery-viewer__controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}
body.detail-polish .gallery-viewer__title { margin: 0; font-size: 14px; letter-spacing: .03em; }
body.detail-polish .gallery-viewer__image {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
  background: #07110f;
}
body.detail-polish .gallery-viewer button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  min-height: 40px;
  margin: 0;
  padding: 7px 12px;
  border: 1px solid rgba(149, 215, 181, .4);
  border-radius: 6px;
  color: #e2f1e8;
  background: #182f28;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}
body.detail-polish .gallery-viewer button:hover { background: #254a3d; }
body.detail-polish .gallery-viewer button:focus-visible { outline: 2px solid #b4ecd1; outline-offset: 3px; }
body.detail-polish .gallery-viewer__count { font-size: 14px; font-variant-numeric: tabular-nums; }
@media (max-width: 620px) {
  body.detail-polish .gallery-frame::before { inset: -4px; border-radius: 21px; }
  body.detail-polish .gallery-corner { width: 18px; height: 18px; }
  body.detail-polish .gallery-corner--tl { left: -21px; top: -11px; }
  body.detail-polish .gallery-corner--tr { right: -21px; top: -11px; }
  body.detail-polish .gallery-corner--bl { left: -21px; bottom: -11px; }
  body.detail-polish .gallery-corner--br { right: -21px; bottom: -11px; }
  body.detail-polish .gallery-viewer[open] { padding: 8px; gap: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  body.detail-polish .gallery-frame .screenshot-slide { transition: none; transform: none; }
}