#main{
  background: url(../images/main_bg.webp);
  background-size: cover;
  background-position: center top;
  /* padding-top: 250px; */
  padding-bottom: 76px;
}

#ttl{
  text-align: center;
}
#ttl h2{
  font-size: 40px;
  line-height: 1;
  letter-spacing: 0.3em;
  position: relative;
  top: 0;
  left: 49.9%;
  transform: translateX(-50%);
  padding-top: 6em;
}
#ttl h3{
  font-size: 21px;
  line-height: 1;
  margin-top: 1em;
}

#slide{
  width: 1000px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 72px;
}

/* スライダーの矢印スタイル */
#main-slider .splide__arrow{
  background: none;
  width: 40px;
  height: 40px;
  opacity: 1;
  transition: .3s;
}
#main-slider .splide__arrow:hover{
  opacity: .8;
  transition: .3s;
}
#main-slider .splide__arrow svg{
  display: none;
}
#main-slider .splide__arrow--prev{
  background: url(../images/slide_prev.svg);
  background-size: 100% 100%;
  left: 20px;
}
#main-slider .splide__arrow--next{
  background: url(../images/slide_next.svg);
  background-size: 100% 100%;
  right: 20px;
}

.splide__slide{
  position: relative;
}
.splide__slide .caption{
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: .6s;
}
.splide__slide.is-active .caption{
  opacity: 1;
  transition: .6s;
  transition-delay: .6s;
}
.splide__slide .caption._01{
  width: 218px;
}
.splide__slide .caption._02{
  width: 218px;
}
.splide__slide .caption._03{
  width: 124px;
}
.splide__slide .caption._04{
  width: 138px;
}
.splide__slide .caption._05{
  width: 200px;
}
.splide__slide .caption._06{
  width: 119px;
}
.splide__slide .caption._07{
  width: 150px;
}
.splide__slide .caption._08{
  width: 665px;
  transform: translateX(-55%);
}

.thumb_slide_content{
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-top: 34px;
}
.thumb_slide_content_item{
  position: relative;
  width: 12%;
  cursor: pointer;
}
.thumb_slide_content_item::before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(13, 46, 59, .6);
}
.thumb_slide_content_item .txt{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: #fff;
}
.thumb_slide_content_item.is-active::before,
.thumb_slide_content_item.is-active .txt{
  opacity: 0;
}


@media(max-width:1280px){
  #main{
    /* padding-top: 19.53vw; */
    padding-bottom: 5.93vw;
    background: url(../images/main_bg_sp.webp);
    background-size: cover;
    background-position: center top;
  }
  
  #ttl h2{
    font-size: 3.12vw;
  }
  #ttl h3{
    font-size: 1.64vw;
  }
  
  #slide{
    width: 78.12vw;
    margin-top: 5.62vw;
  }
  
  /* スライダーの矢印スタイル */
  #main-slider .splide__arrow{
    width: 3.12vw;
    height: 3.12vw;
  }
  #main-slider .splide__arrow--prev{
    left: 1.56vw;
  }
  #main-slider .splide__arrow--next{
    right: 1.56vw;
  }

  .splide__slide .caption{
    bottom: 1.56vw;
  }
  .splide__slide .caption._01{
    width: 17.03vw;
  }
  .splide__slide .caption._02{
    width: 17.03vw;
  }
  .splide__slide .caption._03{
    width: 9.68vw;
  }
  .splide__slide .caption._04{
    width: 10.78vw;
  }
  .splide__slide .caption._05{
    width: 15.62vw;
  }
  .splide__slide .caption._06{
    width: 9.29vw;
  }
  .splide__slide .caption._07{
    width: 11.71vw;
  }
  .splide__slide .caption._08{
    width: 51.95vw;
  }
  
  .thumb_slide_content{
    margin-top: 2.65vw;
  }
  .thumb_slide_content_item .txt{
    font-size: 1.01vw;
  }
  
}

@media(max-width:750px){
  #main{
    /* padding-top: 32.9vw; */
    padding-bottom: 6.66vw;
  }
  #ttl h2{
    font-size: 5.85vw;
    padding-top: 5em;
  }
  #ttl h3{
    font-size: 3.56vw;
  }

  #slide{
    width: 91.6vw;
    margin-top: 6.61vw;
  }
  
  /* スライダーの矢印スタイル */
  #main-slider .splide__arrow{
    width: 4.32vw;
    height: 4.32vw;
  }
  #main-slider .splide__arrow--prev{
    background: url(../images/slide_prev.svg);
    background-size: 100% 100%;
    left: 2vw;
  }
  #main-slider .splide__arrow--next{
    background: url(../images/slide_next.svg);
    background-size: 100% 100%;
    right: 2vw;
  }

  .splide__slide .caption{
    bottom: 3.05vw;
  }
  .splide__slide .caption._01{
    width: 30.27vw;
  }
  .splide__slide .caption._02{
    width: 30.27vw;
  }
  .splide__slide .caption._03{
    width: 17.30vw;
  }
  .splide__slide .caption._04{
    width: 19.08vw;
  }
  .splide__slide .caption._05{
    width: 27.73vw;
  }
  .splide__slide .caption._06{
    width: 16.53vw;
  }
  .splide__slide .caption._07{
    width: 20.86vw;
  }
  .splide__slide .caption._08{
    width: 67.93vw;
  }
  
  .thumb_slide_content{
    width: 68.7vw;
    margin-left: auto;
    margin-right: auto;
    flex-wrap: wrap;
    margin-top: 34px;
  }
  .thumb_slide_content_item{
    width: 48%;
  }
  .thumb_slide_content_item:nth-child(n+3){
    margin-top: 4%;
  }
  .thumb_slide_content_item .txt{
    font-size: 3.56vw;
  }
}