.photo_gallery {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

/* =========================
   メイン画像
========================= */
.photo_gallery__main_wrap {
  position: relative;
  margin-bottom: 18px;
}

.photo_gallery__main {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #f3f3f3;
}

.photo_gallery__main .swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.photo_gallery__main img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* =========================
   矢印
========================= */
.photo_gallery__arrow {
  position: absolute;
  top: 50%;
  z-index: 10;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: transparent;
  transform: translateY(-50%);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.photo_gallery__arrow--prev {
  left: 12px;
}

.photo_gallery__arrow--next {
  right: 12px;
}
.photo_gallery__arrow img {
    display: block;
    width: 40px;
    height: auto;
    opacity: 0.7;
}

/* =========================
   サムネイル
========================= */
.photo_gallery__thumb_wrap {
  margin-bottom: 16px;
}

.photo_gallery__thumbs {
  width: 100%;
  overflow: hidden;
}

.photo_gallery__thumbs .swiper-wrapper {
  display: flex !important;
  flex-wrap: nowrap !important;
  align-items: stretch;
}

.photo_gallery__thumbs .swiper-slide {
  flex-shrink: 0 !important;
  width: 150px !important;
  height: auto;
  cursor: pointer;
  overflow: hidden;
  opacity: 0.35;
  transition: opacity 0.3s ease;
  box-sizing: border-box;
}

.photo_gallery__thumbs .swiper-slide img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.photo_gallery__thumbs .swiper-slide.is-active {
  opacity: 1;
}

.photo_gallery__thumbs .swiper-slide:hover {
  opacity: 1;
}

/* =========================
   枚数表示
========================= */
.photo_gallery__count {
  text-align: center;
  font-size: 24px;
  line-height: 1;
  font-weight: 500;
  color: #009844;
}

/* =========================
   SP
========================= */
@media screen and (max-width: 768px) {

  .photo_gallery__arrow {
    width: 34px;
    height: 34px;
  }

  .photo_gallery__arrow--prev {
    left: 8px;
  }

  .photo_gallery__arrow--next {
    right: 8px;
  }

  .photo_gallery__arrow img {
    width: 25px;
  }

  .photo_gallery__thumbs .swiper-slide {
    width: 90px !important;
  }

  .photo_gallery__count {
    font-size: 20px;
  }
}