.main-key-visual-wrapper {
  position: relative;
}

.main-key-visual-mask-outer {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.main-key-visual-mask-inner {
  color: #ffffff;
  font-size: 2.0rem;
  letter-spacing: 1.5rem;
  text-align: center;
}

.main-key-visual-mask-inner h2 {
  margin-bottom: -20px;
}

@media (max-width: 1023px) {
  .main-key-visual-mask-inner {
    font-size: 1.5rem;
    letter-spacing: 0.5rem;
  }
}

@media (max-width: 767px) {
  .main-key-visual-mask-inner {
    font-size: 1.0rem;
    letter-spacing: 0.15rem;
  }
}

.main-results {
  max-width: 1212px;
  margin: 0 auto;
}

.main-results-title {
  letter-spacing: 1.0rem;
  text-align: center;
  margin: 40px 0;
}

@media (max-width: 1023px) {
  .main-results {
    margin: 0 16px;
  }

  .main-results-title {
    font-size: 1.25rem;
    letter-spacing: 0.5rem;
    margin: 20px 0;
  }
}

@media (max-width: 767px) {
  .main-results {
    margin: 0 16px;
  }

  .main-results-title {
    font-size: 1.0rem;
    letter-spacing: 0.1rem;
    margin: 20px 0;
  }
}

.filter-list {
  display: flex;
  justify-content: space-between;
}

.filter-item {
  width: 25%;
  border: 1px solid;
  text-align: center;
  font-weight: bold;
  letter-spacing: 0.5rem;
  margin: 6px;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-item:hover{
  background: #fff;
  border: 1px solid #fff;
}

@media (max-width: 1023px) {
  .filter-list {
    flex-wrap: wrap;
  }

  .filter-item {
    width: calc(50% - 12px);
    border: 2px solid #999999;
    letter-spacing: 0.25rem;
    margin: 8px 6px;
    padding: 8px 0;
  }
}

@media (max-width: 767px) {
  .filter-item {
    letter-spacing: 0;
    font-size: 0.9rem;
    margin: 8px 6px;
    padding: 0;
  }
}

.contents {
  position: relative;
  width: 100%;
  margin: 0 auto;
  padding: 0;
  display: flex;
}

@media (max-width: 767px) {
  .contents {
  }
}

.contents-item {
  position: absolute;
  width: 25%; /* test */
  z-index: 1;
  cursor: pointer;
  padding: 6px; /* test */
  border: 1px transparent;
}

@media (max-width: 1023px) {
  .contents-item {
    width: 50%;
    padding: 6px;
    margin: 0;
  }
}

@media (max-width: 767px) {
  .contents-item {
    width: 50%;
    padding: 6px;
    margin: 0;
  }
}

.photo {
  position: relative;
  overflow: hidden;
}

.photo img {
  width: 100%;
  transition: transform 0.6s ease; /* ゆっくり変化させる */
}

.photo:hover img {
  transform: scale(1.1); /* マウスカーソルを重ねた時に拡大 */
}

.photo-caption {
  background: linear-gradient(to right, rgba(0, 0, 0, 0) 13%, rgba(0, 0, 0, 1) 50%, rgba(0, 0, 0, 0) 87%);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  color: #FFFFFF;
  text-align: center;
  font-size: 1.2rem;
}

@media (max-width: 767px) {
  .photo-caption {
    font-size: 0.8rem;
  }
}


/* スクロールして画面内に入ったらフェードイン */
.fade-in {
  opacity: 0;
  transition-duration: 1000ms;
  transition-property: opacity, transform;
}

.scroll-in {
  opacity: 1;
}