@charset "UTF-8";

* { box-sizing: border-box; }
body{ background-color: #000; }

.contents_top {
  position: fixed;
  z-index: 5;
}

#aboutus a,#aboutus a:link,#aboutus a:visited {
  color: lightseagreen; font-weight: 700;
}

#aboutus a:hover,#aboutus a:active { color: #bbb; }

#aboutus{
  margin: 8.05vmax 0 0 0;
  color: #e2e2e2;
}

.aboutus_wrap{
  position: relative;
  margin-top: 8.05vmax;
  height: calc(100vh - 8.05vmax);
  height: calc(100svh - 8.05vmax);
}

.inner{
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  clip-path: inset(0);
}

.bg{
  position: fixed;
  top: 8.05vmax;
  left: 0;
  width: 100vw;
  height: calc(100vh - 8.05vmax);
  height: calc(100svh - 8.05vmax);
  background-image: url("../img/aboutus/aboutus.png") ;
  background-size: 100vw auto;
  background-position: top;
  background-repeat: no-repeat;
  z-index: -1;
}

.aboutus_top {
  font-family: 'Noto Serif JP', "Source Han Serif JP", "Noto Serif CJK JP", "游明朝体", "Yu Mincho", YuMincho, serif;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  padding: 8em 4em 4em;
}

.aboutus_title {
  margin: 0 0 2em 0;
  font-size: clamp(22px, 2.5vw, 40px);
  letter-spacing: 0.1em;
}

.aboutus_top_1 > p {
  line-height: 240%;
  font-size: clamp(14px, 1vw, 1.5em);
  font-weight: 700;
}

.aboutus_top_2 img {
  width: 40vw;
  height: auto;
}

.aboutus_art_start {
  width: 100%;
  text-align: center;
}

.aboutus_art_start img {
  width: 5vw;
}

.artwork {
  width: 100%;
  margin-top: 4em;
  padding: 6em 0 0;
  top: 0;
  overflow: hidden;
  background-color: #000;
}

.aboutus_art_dragon, .aboutus_art_knight {
  width: 100%;
}
.aboutus_art_dragon {
  margin-bottom: 6em;
}

.ab_title {
  width: 100%;
  min-width: 1000px;
}

.aboutus_art {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content:space-between;
  gap: 14px;
  margin-top: 1em;
  width: 100%;
}

.aboutus_art > * {
  flex: 1 1 calc(50% - 14px);
}

.aboutus_art img {
  width: 100%;
  height: 100%;
}

.artwork_bottom {
  width: 100%;
  height: 90px;
  background-color: rgba(0,0,0,.6);
}

#footer {
  position: static;
}

@media screen and (max-width: 1080px) {
  .sns {
    background-color: rgba(0,0,0,1);
  }

  #aboutus{
    margin: 65px 0 0 0;
    font-weight: normal;
  }
  
  .aboutus_wrap{
    margin-top: 65px;
    height: calc(100vh - (65px + 25px));
    height: calc(100svh - (65px + 25px));
  }

  .bg{
    top: 65px;
    width: 100%;
    height: 110%;
    height: 110svh;
    background-size: cover;
    background-position: left top;
    background: ;
    transform: translate3d(0, 0, -1px);
  }

  .aboutus_top {
    display: block;
    width: 100%;
    padding: 4em; 
  }

  .aboutus_top_1, .aboutus_top_2 {
    width: 50vw;
    min-width: 500px;
    margin: auto;
    padding: 1em 0;
  }

  .aboutus_top_2 {
    text-align: center;
  }

  .aboutus_top_2 img {
    width: 50vw;
  }

  .aboutus_art_start img {
    width: 3.5em;
  }
  
  .artwork {
    width: 100%;
    margin-top: 2em;
    padding: 3em 0 0;
    top: 0;
    overflow: hidden;
    background-color: #000;
  }
  
  .aboutus_art_dragon, .aboutus_art_knight {
    width: 100%;
  }
  .aboutus_art_dragon {
    margin-bottom: 3em;
  }
}

@media screen and (max-width: 600px) {
  .aboutus_top {
    width: 100%;
    padding: 4em 2em 5em;
  }

  .bg{
    width: 100%;
    background-position: -100px top;
  }

  .aboutus_top_1, .aboutus_top_2 {
    width: 100%;
    min-width: auto;
    padding-left: 0;
  }

  .aboutus_top_1 {
    margin-bottom: 2em;
  }

  .aboutus_title {
    margin: 0 0 1em 0;
    font-size: clamp(22px, 2.5vw, 40px);
    letter-spacing: 0.1em;
  }
  
  .aboutus_top_1 > p {
    line-height: 160%;
    font-size: clamp(14px, 1vw, 1em);
    font-weight: normal;
    text-align: justify;
  }

  .aboutus_top_2 img {
    width: 100%;
  }

  .aboutus_art_start img {
    width: 50px;
  }

  .ab_title {
    position: relative;
    left: -20px;
  }
  .aboutus_art {
    display: block;
    margin-top: 0;
  }

  .aboutus_art > div {
    margin: 15px 0 0;
  }
  
}