.souken-gallery-page {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 16px 40px;
  box-sizing: border-box;
}
.souken-gallery-page h1 {
  margin: 0;
  text-align: center;
  font-size: clamp(1.25rem, 2.4vw, 2rem);
}
.souken-gallery {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  width: 100%;
  max-width: 1000px;
  margin: 24px auto;
  padding: 0 16px;
  box-sizing: border-box;
}
.souken-gallery__item {
  display: block;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: zoom-in;
  text-align: center;
  touch-action: manipulation;
}
.souken-gallery__item:focus-visible {
  outline: 3px solid #1f5d8a;
  outline-offset: 4px;
}
.souken-gallery__item img {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  background: #f5f5f5;
  user-select: none;
}
.souken-gallery__caption {
  display: block;
  width: 100%;
  padding: 8px 4px;
  text-align: center;
  font-weight: 700;
  box-sizing: border-box;
  overflow-wrap: anywhere;
}
.souken-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, .92);
  padding: 56px 64px;
  touch-action: none;
  overscroll-behavior: contain;
}
.souken-lightbox.is-open { display: flex; }
.souken-lightbox__image {
  max-width: calc(100vw - 128px);
  max-height: calc(100vh - 140px);
  width: auto;
  height: auto;
  object-fit: contain;
  user-select: none;
}
.souken-lightbox__close,
.souken-lightbox__prev,
.souken-lightbox__next {
  position: absolute;
  border: 0;
  background: #fff;
  color: #111;
  font-size: 28px;
  line-height: 1;
  padding: 8px 14px;
  cursor: pointer;
  touch-action: manipulation;
}
.souken-lightbox__close { right: 18px; top: 14px; }
.souken-lightbox__prev { left: 18px; top: 50%; transform: translateY(-50%); }
.souken-lightbox__next { right: 18px; top: 50%; transform: translateY(-50%); }
.souken-lightbox__prev:disabled,
.souken-lightbox__next:disabled { display: none; }
.souken-lightbox__description {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 12px;
  color: #fff;
  text-align: center;
  font-size: 16px;
}
.souken-gallery__status { padding: 12px; text-align: center; }
@media (max-width: 600px) {
  .souken-gallery { gap: 24px; padding: 0 12px; }
  .souken-lightbox { padding: 48px 36px; }
  .souken-lightbox__image {
    max-width: calc(100vw - 72px);
    max-height: calc(100vh - 120px);
  }
  .souken-lightbox__prev { left: 4px; }
  .souken-lightbox__next { right: 4px; }
  .souken-gallery__caption { font-size: 13px; }
}