@charset "UTF-8";

/* 共通 */

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

.ancient_wrap::before {
  content: "";
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  width: 100%;
  height: 100vh;
  background-repeat: no-repeat;
  background-position: top center;
  background-size: cover;
}

.webp .ancient_wrap::before {
  background-image: url(../img/bg.webp);
}

.no-webp .ancient_wrap::before {
  background-image: url(../img/bg.jpg);
}

.ancient_content {
  width: 90%;
  max-width: 750px;
  margin: 7rem auto 3rem;
  box-shadow: 0 0 16px rgba(0, 0, 0, 0.3);
}

.ancient_inner {
  width: 100%;
  line-height: 0;
}

.ancient_inner img {
  vertical-align: bottom;
}

.ancient_comic {
  padding: 0 0 1rem;
  background-color: #e4dec4;
  overflow: hidden;
}

.ancient_comic_slider {
  padding-bottom: 2rem;
  overflow: visible;
}

.ancient_comic_slider .swiper-slide {
  line-height: 0;
}

.ancient_comic_slider .swiper-slide img {
  display: block;
  height: auto;
}

.ancient_comic_slider .swiper-button-prev,
.ancient_comic_slider .swiper-button-next {
  width: 0;
  height: 0;
  margin-top: -2.5rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: transparent;
}

.ancient_comic_slider .swiper-button-next {
  right: auto;
  left: 5%;
}

.ancient_comic_slider .swiper-button-prev {
  right: 5%;
  left: auto;
}

.ancient_comic_slider .swiper-button-prev::after,
.ancient_comic_slider .swiper-button-next::after {
  content: "";
  width: 0;
  height: 0;
  border-top: 18px solid transparent;
  border-bottom: 18px solid transparent;
}

.ancient_comic_slider .swiper-button-next::after {
  border-right: 26px solid #a31f2c;
}

.ancient_comic_slider .swiper-button-prev::after {
  border-left: 26px solid #a31f2c;
}

.ancient_comic_slider .swiper-button-disabled {
  opacity: 0.35;
}

.ancient_comic_slider .swiper-pagination {
  bottom: 0;
  direction: rtl;
}

.ancient_comic_slider .swiper-pagination-bullet {
  background: #999;
  border-radius: 0;
  opacity: 1;
}

.ancient_comic_slider .swiper-pagination-bullet-active {
  background: #a31f2c;
}

/* スマホ：ナビを一回り小さくし、三角1個分下げる */
@media screen and (max-width: 750px) {
  .ancient_comic_slider .swiper-button-prev,
  .ancient_comic_slider .swiper-button-next {
    transform: translateY(28px);
  }

  .ancient_comic_slider .swiper-button-prev::after,
  .ancient_comic_slider .swiper-button-next::after {
    border-top-width: 14px;
    border-bottom-width: 14px;
  }

  .ancient_comic_slider .swiper-button-next::after {
    border-right-width: 20px;
  }

  .ancient_comic_slider .swiper-button-prev::after {
    border-left-width: 20px;
  }

  .ancient_comic_slider {
    padding-bottom: 1.8rem;
  }
}

/* PC：ナビを三角2個分下げる */
@media screen and (min-width: 751px) {
  .ancient_comic_slider .swiper-button-prev,
  .ancient_comic_slider .swiper-button-next {
    transform: translateY(72px);
  }
}

.ancient_movie {
  padding: 3rem;
  background-image:
    url(../img/c-1.png), url(../img/c-2.png), url(../img/c-3.png),
    url(../img/c-4.png);
  background-repeat: no-repeat;
  background-position:
    top left -10%,
    top right -15%,
    bottom left -5%,
    bottom right -10%;
  background-size:
    30% auto,
    30% auto,
    30% auto,
    30% auto;
  background-color: #000;
}

.ancient_movie_text {
  width: 80%;
  margin: 0 auto;
}

.ancient_movie_btn {
  width: 50%;
  margin: 2rem auto 0;
}

@media screen and (min-width: 1px) and (max-width: 750px) {
  body .lity {
    z-index: 100001;
  }

  .ancient_content {
    width: 100%;
    margin: 3.3rem auto 0;
  }

  .ancient_inner {
    width: 100%;
  }

  .ancient_movie {
    padding: 1.5rem;
  }

  .ancient_movie_text {
    width: 100%;
  }

  .ancient_movie_btn {
    width: 70%;
    margin: 1.5rem auto 0;
  }
}

@media screen and (min-width: 751px) and (max-width: 1024px) {
  .ancient_content {
    width: 80%;
    margin: 6rem auto;
  }
}

@media screen and (min-width: 1025px) {
  .sp_display {
    display: none;
  }

  .alpha a {
    -webkit-transition: all 0.2s ease;
    -o-transition: all 0.2s ease;
    transition: all 0.2s ease;
  }

  .alpha a:hover {
    opacity: 0.7;
    filter: alpha(opacity=70);
    -ms-filter: "alpha(opacity=70)";
  }

  a.btn_hover img {
    -webkit-transition: -weblit-transform 0.3s;
    -o-transition: -o-transform 0.3s;
    -webkit-transition: -webkit-transform 0.3s;
    transition: -webkit-transform 0.3s;
    -o-transition: transform 0.3s;
    transition: transform 0.3s;
    transition:
      transform 0.3s,
      -webkit-transform 0.3s;
  }

  a.btn_hover img:hover {
    -webkit-transform: scale(1.03);
    -ms-transform: scale(1.03);
    transform: scale(1.03);
  }
}