#i1 {
  width:100%;
}
#i1 img, #i1 video {
  object-fit:contain;min-width:100%;width:100%;
}
@media screen and (max-width:640px) {
  #i1 img, #i1 video {
    object-fit:contain;height:100%;
  }
}
#i30 {
  text-align:center;
}
#i31 {
  background-image:url(../image/home/bg01.jpg);
  background-size:cover;background-position:center center;
}
#i32 {
  background-color:var(--wh50);
}
#i33 {
  background-image:url(../image/home/bg02.jpg);
  background-size:cover;background-position:right center;
}
#i39 {
  border-top:solid 4px var(--mc30);
  background-color:var(--bc);
}
#i257 {
  background-color:var(--sc);
}