/* タイポグラフィに関するスタイル */

html {
  font-size: 62.5%;
}
.t-header {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 1.6rem;
  letter-spacing: 0.1em;
  line-height: 1.5;
  color: #222;
}
.t-headline2 {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 2.4rem;
  letter-spacing: 0.05em;
  line-height: 1;
  color: #222;
}
.t-headline3 {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 2rem;
  letter-spacing: 0;
  line-height: 1.2;
  color: #112453;
}
.t-headline4 {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: normal;
  font-size: 1.6rem;
  letter-spacing: 0;
  line-height: 1.5;
  color: #222;
}
.t-description {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: normal;
  font-size: 1.6rem;
  letter-spacing: 0;
  line-height: 1.75;
  color: #222;
}
.t-btn {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
  line-height: 1.1875;
  color: #112453;
}
.t-nav{
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 1.4rem;
  letter-spacing: 0.1em;
  line-height: 1.2;
  color: #222;
}
.t-guide {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 2rem;
  letter-spacing: 0;
  line-height: 1.4;
  color: #112453;
}
.t-scrollNav {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 1.6rem;
  letter-spacing: 0.1em;
  line-height: 2;
  color: #fff;
}
.t-form {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 1.6rem;
  letter-spacing: 0.05em;
  line-height: 1.5;
  color: #222;
}
.t-footer {
  font-family: fot-tsukubrdgothic-std, sans-serif;
  font-weight: bold;
  font-size: 1rem;
  letter-spacing: 0;
  line-height: 1.5;
  color: #222;
}

@media screen and (min-width: 960px) {
  .t-headline2 {
    font-size: 3.2rem;
    line-height: 0.75;
  }
  .t-headline4 {
    font-size: 1.8rem;
  }
  .t-footer {
    font-size: 1.6rem;
  }
  .t-copyright {
    font-family: fot-tsukubrdgothic-std, sans-serif;
    font-weight: bold;
    font-size: 1.8rem;
    letter-spacing: 0;
    line-height: 1.333;
    color: #fff;
    animation: infinity-rotate 5s infinite linear -1s both;
  }
  @keyframes infinity-rotate {
    0% {
      transform: rotate(0);
    }
    25% {
      transform: rotate(-2deg);
    }
    50% {
      transform: rotate(0);
    }
    75%{
      transform: rotate(2deg);
    }
    100%{
      transform: rotate(0);
    }
  }
}