@charset "UTF-8";

*, *::before, *::after {
  margin: 0;
  padding: 0;
  transition: .3s;
}
body {
  font-family: YuGothic, "Yu Gothic Medium", "Yu Gothic", Meiryo, sans-serif;
  font-size: clamp(13px, 3vw, 16px);
  opacity: 0;
  transition: opacity 1s;
}
body.visible {
  opacity: 1;
}
img {
  vertical-align: bottom;
  max-width: 100%;
}

header {
  padding: 18px 20px;
}
header p {
  display: inline-block;
  margin-right: 30px;
}
header p a img {
  height: 40px;
}
@media screen and (max-width: 768px) {
  header p {
    margin-right: 1em;
  }
  header p a img {
    max-height: 2em;
  }
}

figure img {
  display: block;
  width: min(100%, 2400px);
  margin: 0 auto;
}

main {
  width: min(90%, 1000px);
  margin: min(calc((196 / 1920) * 100vw), 196px) auto;
}
main h1 {
  margin-bottom: 1.5em;
  line-height: 1.8;
  font-size: 2.2em;
}
main h1 span {
  display: inline-block;
}
main p {
  margin-top: 1em;
  line-height: 2;
  text-align: justify;
  font-size: calc((20 / 16) * 1em);
  letter-spacing: -.02em;
}
@media screen and (max-width: 768px) {
  main h1 {
    margin-bottom: 1em;
    font-size: 1.8em;
  }
  main p {
    font-size: calc((18 / 16) * 1em);
  }
}

footer {
  padding: 20px 40px;
  background-color: #e5e5e5;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
}
footer p {
  line-height: calc(22 / 15);
  font-size: calc((15 / 16) * 1em);
  letter-spacing: .1em;
}
footer p:not(:last-child) {
  margin-right: 50px;
}
footer p:first-child span {
  display: block;
  font-weight: bold;
  letter-spacing: .25em;
}
footer p:last-child {
  margin-top: 1em;
  margin-left: auto;
}
footer p:last-child small {
  font-size: calc((12/ 15) * 1em);
}
@media screen and (max-width: 768px) {
  footer {
    padding: 5%;
    display: block;
  }
  footer p:first-child {
    margin-bottom: 1em;
  }
  footer p:first-child span {
    display: inline-block;
    margin-right: 1.5em;
  }
}