/*adobeフォントロード
------------------------------*/
html {
    visibility: hidden;
}
html.wf-active,
html.loading-delay {
    visibility: visible;
}

/*ページトップ画像
------------------------*/
.page_top_wrap {
  padding-top: 65px;
}
.page_top {
  position: relative;
  background-image: url(../../img/art/img_1.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  position: relative;
}
.page_top::before {
  content: '';
  display: block;
  padding-top: 36.9%;
}

/*コンテンツ
------------------------*/
body{
  line-height: 1.9285;
}
h2{
  font-size: 18px;
  letter-spacing: 3.6px;
}
.line{
  width: 100%;
  height: 1px;
  display: inline-block;
  background-color: #707070;
}
.kaigyo{
  display: inline-block;
}

.art {
  padding-top: 120px;
}
.intro {
  padding-bottom: 120px;
}
.instraction h1{
  font-size: 18px;
  letter-spacing: 3.6px;
  line-height: 2.167;
}
.divider {
  height: 1px;
  background-color: #333;
}

.image_wrap {
  position: relative;
  width: 100%;
} 
.image_wrap::before {
  content: '';
  display: block;
  padding-top: 100%;
}
.image_wrap .art_img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}


/*art_pro_container*/
.art_pro_container{
  margin-top: 145px;
  margin-bottom: 240px;
}
.art_pro_container ul{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.art_pro_container ul li{
  width: calc((100% - 60px) / 3);
}
.art_nam{
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 25px;
  height: 50px;
}
.art_nam h2{
  line-height: 1;
  letter-spacing: 1.92px;
}
.art_nam p{
  line-height: 1.64;
}
.art_pro_container ul li:nth-child(2) .art_pro .image_wrap{
  border: 1px solid #ddd;
}
.art_pro .image_wrap::before{
  padding-top: 126.3%;
}
.art_text{
  margin-top: 30px;
}
.art_text h3{
  text-align: center;
  font-size: 16px;
  letter-spacing: 3px;
  line-height: 1.875;
  margin-bottom: 20px;
}
.art_text p{
  margin-bottom: 55px;
}


@media screen and (max-width: 1000px){
  .art_pro_container{
    margin-bottom: 145px;
  }
  .art_pro_container ul li{
  width: calc((100% - 30px) / 2);
  }
  .art_pro_container ul li:first-child .art_text p{
    margin-bottom: 78px;
  }
  .art_pro_container ul li:nth-child(2) .art_text p{
    margin-bottom: 78px;
  }
}

@media screen and (max-width: 768px){
  .page_top{
    background-position: left 50% bottom 0;
  }
  .page_top::before {
    padding-top: 70%;
  }
  .art{
    padding-top: 80px;
  }
  .sec_title{
    margin-bottom: 36px;
  }
  .intro{
    padding-bottom: 70px;
  }
  .art_pro_container{
    margin-top: 75px;
  }
  .art_pro_container ul li{
    width: 100%;
  }
  .art_nam h2{
    line-height: 1;
    font-size: 16px;
    letter-spacing: 1.92px;
  }
  .art_nam p{
    text-align: right;
  }
  .art_text{
    margin-top: 20px;
  }
  .art_text h3{
    margin-bottom: 10px;
  }
  .art_text p{
    margin-bottom: 45px;
  }
  .art_pro_container ul li:first-child .art_text p{
    margin-bottom: 45px;
  }
  .art_pro_container ul li:nth-child(2) .art_text p{
    margin-bottom: 68px;
  }
  .art_pro_container ul li:nth-child(3) .art_text p{
    margin-bottom: 68px;
  }
}