@charset "utf-8";

header{
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, .6);
  backdrop-filter: blur(10px);
  padding-bottom: 1em;
}
@media screen and (max-width: 520px){
  header.active{
    background-color: transparent;
    backdrop-filter: blur(0);
    padding-bottom: 1em;
  }
}

/*--------------------------------------------------------------------*/

nav.breadcrumbs{
  color: #a1a1a1;
  font-weight: 500;
  max-width: 100%;
  overflow: auto;
}
nav.breadcrumbs li{
  background-image: url("../img");
  background-repeat: no-repeat;
  background-position: left center;
  background-size: auto;
  position: relative;
  white-space: nowrap;
}
nav.breadcrumbs li + li{
  margin-left: 1em;
  padding-left: 1.75em;
}
nav.breadcrumbs li + li::before{
  content: "";
  display: block;
  width: .5em;
  height: .5em;
  border-top: 1px solid #a1a1a1;
  border-right: 1px solid #a1a1a1;
  position: absolute;
  left: 0;
  top: 50%;
  transform: rotate(45deg) translate(0, -50%);
}

/*--------------------------------------------------------------------*/

#header{
  padding: 10em 5vw 4em 5vw;
}
#header .title{
  margin-bottom: 3em;
  font-weight: 600;
}
#header .title .en{
  font-size: 437.5%;
}
#header .description{
  font-size: 112.5%;
  font-weight: 500;
}
#header .description .annotation{
  font-size: clamp(1.1rem, 66.66%, 1.4rem);
  margin-top: 1em;
}
#header .description .annotation sup{
  color: var(--c_red);
  margin-right: .25em;
  transform: translateY(15%);
  display: inline-block;
}
@media screen and (max-width: 520px){
  #header{
    padding: 10vw 5vw 3em 5vw;
  }
  #header .title{
    margin-bottom: 3em;
    font-weight: 600;
  }
  #header .title .en{
    font-size: 260%;
  }
  #header .description{
    font-size: 1.6rem;
    font-weight: 500;
    text-align: left;
  }
  #header .description br{
    display: none;
  }
  #header .description .annotation{
    font-size: clamp(1.1rem, 66.66%, 1.4rem);
    margin-top: 1em;
  }
  #header .description .annotation sup{
    color: var(--c_red);
    margin-right: .25em;
    transform: translateY(15%);
    display: inline-block;
  }
}