html,
body {
  height: 100%;
}

body {
  background-color: #FFD800;
  font-family: "Monoton", cursive !important;
}

main h1 {
  font-family: "Monoton", cursive !important;
  font-size: 24px;
  font-size: 1.756954612vw;
  font-weight: normal;
  line-height: 1;
  letter-spacing: 0.05em;
  text-align: left;
  color: #fff;
  position: absolute;
  left: 1.5em;
  top: 1.5em;
}
@media screen and (max-width: 768px) {
  main h1 {
    font-size: 5.8666666667vw;
    left: 1.2em;
    top: 1.2em;
  }
}
main .mes {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  text-align: center;
  line-height: 1;
  color: #ff6c02;
  height: 100vh;
}
main .mes p:nth-of-type(1) {
  font-size: 129px;
  font-size: 9.4436310395vw;
  margin-top: 4vw;
  margin-top: 0;
}
@media screen and (max-width: 768px) {
  main .mes p:nth-of-type(1) {
    font-size: 11.7333333333vw;
  }
}
main .mes p:nth-of-type(1) strong {
  display: block;
  font-size: 331px;
  font-size: 24.2313323572vw;
  font-weight: normal;
  padding-top: 0.1em;
}
@media screen and (max-width: 768px) {
  main .mes p:nth-of-type(1) strong {
    font-size: 30.4vw;
  }
}
main .mes p.ja {
  font-family: "Noto Sans JP", sans-serif !important;
  font-weight: 400;
  font-size: 3.6603221083vw;
  letter-spacing: 0.1em;
  font-weight: 100;
}
@media screen and (max-width: 768px) {
  main .mes p.ja {
    font-size: 5.8666666667vw;
  }
}

.nokori {
  display: none;
  position: absolute;
  right: 1em;
  bottom: 1em;
  color: #fff;
  z-index: 1;
  line-height: 1;
}
@media screen and (max-width: 768px) {
  .nokori {
    font-size: 12px;
  }
}
.nokori strong {
  font-size: 1.5em;
  font-weight: normal;
  padding-right: 0.2em;
}

.mask {
  width: 100%;
  height: 100%;
  position: fixed;
  right: 0;
  top: 0;
  transition: 0.5s cubic-bezier(0.74, 0, 0.59, 1);
}
.mask .mask-block {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  right: 0;
  top: 0;
  background-color: #ff6c02;
  transform-origin: right bottom;
  transition: 0.5s cubic-bezier(0.74, 0, 0.59, 1);
}