@charset "utf-8";

body{
  background: url(../images/bg_body.svg) no-repeat 0% 0%;
}
@media screen and (min-width: 1366px){
  body{
    background-size: 100% auto;
  }
}

/*  post  */
#post{
  padding: 0 calc( (50vw - 50%) / 2 ) 5.3rem calc( (50vw - 50%) / 2 );
  margin: 6.2rem calc( (50% - 50vw) / 2 ) 0 calc( (50% - 50vw) / 2 );
  background-color: rgb(255, 255, 255);
}
@media screen and (min-width: 768px){
  #post{
    padding: 5.3rem;
    margin: 6.2rem auto 0 auto;
    max-width: 84.6rem;
    box-sizing: border-box;
  }
}
#post time{
  display: block;
  font-size: 1.3rem;
  line-height: 1;
  letter-spacing: calc(1.04 / 13 * 1em);
  color: rgb(188, 188, 188);
}
#post h3{
  padding-top: .4rem;
  padding-bottom: 2.8rem;
  margin: 0;
  font-size: 1.8rem;
  font-weight: bold;
  line-height: 1.8;
  letter-spacing: calc(0.72 / 18 * 1em);
  color: var(--theme-color);
  border-bottom: solid 1px rgb(239, 239, 239);
}
#post .content{
  padding-top: 2.0rem;
}
#post .content p{
  margin: 0;
  font-size: 1.3rem;
  line-height: 2.15;
  letter-spacing: calc(0.65 / 13 * 1em);
}
#post .content p:not(:last-of-type){
  padding-bottom: 2.15em;
}

/*  linearnav  */
#linearnav{
  padding: 10.0rem 0 17.0rem 0;
}
#linearnav ul{
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: justify;
  justify-content: space-between;
}
@media screen and (min-width: 768px){
  #linearnav ul{
    -webkit-box-pack: center;
    justify-content: center;
  }
}
#linearnav li:not(.index){
  min-width: 7.6rem;
}
@media screen and (min-width: 768px){
  #linearnav li:not(.index){
    min-width: 19.6rem;
  }
}
#linearnav .index{
  padding: 0 calc(96 / 1000 * 100%);
}
#linearnav .index a{
  position: relative;
  display: -webkit-box;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  flex-direction: column;
  -webkit-box-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  align-items: center;
  width: 8.0rem;
  height: 8.0rem;
  font-size: 1.0rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: calc(3.36 / 12 * 1em);
  color: rgb(255, 255, 255);
  border: solid 1px rgb(112, 112, 112);
  border-radius: 50%;
  background-color: rgb(0, 0, 0);
}
@media screen and (min-width: 768px){
  #linearnav .index a{
    width: 10.8rem;
    height: 10.8rem;
    font-size: 1.2rem;
  }
}
#linearnav .index a::before{
  content: '';
  display: block;
  margin-bottom: .9rem;
  width: 2.2rem;
  height: 2.2rem;
  background: url(../images/ico_index.svg) no-repeat 50% 50%/contain;
}
#linearnav .prev a,
#linearnav .next a{
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
  align-items: center;
  height: 100%;
  font-size: 1.3rem;
  font-weight: 900;
  line-height: 1.6;
  letter-spacing: calc(3.64 / 13 * 1em);
}
#linearnav .prev span,
#linearnav .next span{
  display: none;
}
@media screen and (min-width: 768px){
  #linearnav .prev span,
  #linearnav .next span{
    display: inline;
  }
}
#linearnav .prev a::before,
#linearnav .next a::after{
  content: '';
  display: inline-block;
  vertical-align: middle;
  width: 1.0rem;
  height: 1.58rem;
  background: url(../images/ico_arrow.svg) no-repeat 50% 50%/contain;
}
#linearnav .prev a::before{
  margin-right: 1.0rem;
  -webkit-transform: scaleX(-1);
  transform: scaleX(-1);
}
@media screen and (min-width: 768px){
  #linearnav .prev a::before{
    margin-right: 3.0rem;
  }
}
#linearnav .next a::after{
  margin-left: 1.0rem;
}
@media screen and (min-width: 768px){
  #linearnav .next a::after{
    margin-left: 3.0rem;
  }
}