/* 画像ギャラリー（後付け） */
#dl-gallery { margin: 18px 0 8px; }
#dl-gallery h3 { margin: 0 0 10px; font-size: 14px; opacity: .7; }
#dl-gallery .grid {
  display: grid; gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
}
#dl-gallery .item {
  position: relative; border: 1px solid #eee; border-radius: 10px;
  background: #fff; overflow: hidden; box-shadow: 0 4px 14px rgba(0,0,0,.04);
}
#dl-gallery .item img { width: 100%; height: 100px; object-fit: cover; display: block; }
#dl-gallery .item .name {
  display:block; padding: 6px 8px; font-size: 12px; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; color:#222;
}
#dl-gallery .empty { opacity:.6; font-size:13px; padding:8px 0; }

/* Flipで開くバッジ（PDFリンク用） */
a.dl-flip { 
  display:inline-block; margin-left:.5em; font-size:12px; padding:3px 7px;
  border:1px solid #ddd; border-radius:8px; background:#fff; color:#222; text-decoration:none;
}
a.dl-flip:hover { background:#f6f6f6 }

/* 埋め込みPDFの右上ボタン */
.flip-open {
  position:absolute; top:8px; right:8px; z-index:5;
  background:#fff; border:1px solid #ddd; border-radius:10px;
  padding:6px 10px; font-size:13px; color:#222; text-decoration:none;
  box-shadow:0 4px 14px rgba(0,0,0,.08);
}
.flip-open:hover { background:#f6f6f6 }
.flip-wrap { position:relative; }