.image-album {
  border-radius: 12px;
  overflow: hidden;
  text-align: center;
  height: 400px;
  position: relative;
}

.image-album .image {
  width: 100%;
  height: 100%;
  overflow: hidden;
  cursor: pointer;
}

.image-album .image img {
  width: 100%;
  display: unset;
  z-index: 100;
  position: relative;
  height: 100%;
  object-fit: cover;
}

.image-album .show-album-icon {
  position: absolute;
  right: 12px;
  bottom: 12px;
  background: #0009;
  border-radius: 5px;
  z-index: 100;
  color: white;
  padding: 2px 8px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
}

.image-album .show-album-icon--action {
  border: 0;
  font-family: inherit;
  white-space: nowrap;
}

.image-album.only {
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-album.only .gaussian-blur {
  width: 100%;
  height: 100%;
  background: radial-gradient(900px 420px at 20% 10%, rgba(255, 255, 255, 0.14) 0%, rgba(0, 0, 0, 0.26) 55%, rgba(0, 0, 0, 0.36) 100%), linear-gradient(to bottom, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.28) 45%, rgba(0, 0, 0, 0.16) 100%);
  transform: scale(1.25);
  filter: blur(26px) saturate(1.75) contrast(1.45) brightness(0.85);
  opacity: 0.95;
  position: absolute;
  top: 0;
  z-index: 0;
}

.image-album.only .image {
  height: 95%;
  max-width: 60%;
  border-radius: 30px;
  overflow: hidden;
}

.image-album.image-album--complete.only .image {
  height: 100%;
  max-width: 100%;
  border-radius: 0;
}

/* 图片框高度由布局决定，图片居中铺满，海报文字需置于裁切安全区。 */
.image-album--complete > .image {
  position: relative;
  min-width: 0;
  min-height: 0;
  isolation: isolate;
}

.image-album {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
}

.image-album > .image {
  background: #f4f6f8;
  margin: 4px;
}

.image-album > .image:first-child {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
  margin: 4px;
}

@supports (gap: 8px) {
  .image-album {
    gap: 8px;
  }

  .image-album > .image {
    margin: 0;
  }

  .image-album > .image:first-child {
    margin: 0;
  }
}

.image-album.four-mode {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 4px;
  height: 100%;
}

.image-album.four-mode .image {
  margin: 0;
  background: #f4f6f8;
}

.image-album.four-mode .image:first-child {
  grid-column: unset;
  grid-row: unset;
}

.three-mode.image-album {
  grid-template-columns: 3fr 1fr;
  grid-template-rows: 1fr 1fr;
}

.three-mode.image-album .image:first-child {
  grid-row: 1 / 3;
}

@media (max-width: 768px) {
  .image-album,
  .three-mode.image-album,
  .four-mode.image-album {
    height: 240px !important;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
  }

  .image-album > .image,
  .three-mode.image-album > .image,
  .four-mode.image-album > .image {
    margin: 2px;
  }

  .image-album .image:first-child,
  .three-mode.image-album .image:first-child,
  .four-mode.image-album .image:first-child {
    grid-column: unset;
    grid-row: unset;
  }

  @supports (gap: 4px) {
    .image-album,
    .three-mode.image-album,
    .four-mode.image-album {
      gap: 4px;
    }

    .image-album > .image,
    .three-mode.image-album > .image,
    .four-mode.image-album > .image {
      margin: 0;
    }
  }

  .image:nth-child(n+5) {
    display: none;
  }

  .show-album-icon {
    font-size: 12px;
    padding: 2px 6px;
    right: 8px;
    bottom: 8px;
  }
}

.image-album.two-mode {
  grid-template-columns: 1fr 1fr !important;
  grid-template-rows: none;
}

.image-album.only {
  height: 240px !important;
}

.image-album.only .image {
  max-width: 100%;
  height: 100%;
  border-radius: 12px;
}

.image-album.only .gaussian-blur {
  display: none;
}