html {
  scroll-behavior: smooth;
}
body {
  animation: fade-in 0.5s;
  max-width: 390px;
  margin: 0 auto;
  background: #000000;
  font-family: sans-serif;
  font-size: 1.2rem;
  color: #CCCCCC;
}
a {
  color: inherit;
  text-decoration: none;
}
.star {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
h2 {
  position: absolute;
  top: 60px;
  left: 0;
  right: 0;
  text-align: center;
  color: #ffffff;
}
.s-PRB {
  position: absolute;
  top: 150px;
  left: 0;
  right: 0;
  text-align: center;
}
.s-PRB2 {
  width: 80px;
  animation: fade-in 2s;
}
.please {
  box-sizing: border-box;
  position: absolute;
  width: 390px;
  height: 30px;
  top: 680px;
  left: 0;
  right: 0;
  margin: 0px auto;
  text-align: center;
  font-family: serif;
  z-index: 100;
  animation: blinking 3s ease-in-out 2s infinite backwards;
}
.flex1 {
  position: absolute;
  width: 390px;
  top: 290px;
  left: 0;
  right: 0;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  align-items: flex-end;
  gap: 10px 0;
}
.t-size {
  width: auto;
  height: 144px;
  animation: slide-in 1s ease-out 0s 1 normal both;
}
.q-size {
  width: auto;
  height: 147px;
  animation: slide-in 1s ease-out 0.2s 1 normal both;
}
.y-size {
  width: auto;
  height: 200px;
  animation: slide-in 1s ease-out 0.4s 1 normal both;
}
.u-size {
  width: auto;
  height: 160px;
  animation: slide-in 1s ease-out 0.6s 1 normal both;
}
.g-size {
  width: auto;
  height: 170px;
  animation: slide-in 1s ease-out 0.8s 1 normal both;
}
.nakami {
  box-sizing: border-box;
  position: absolute;
  width: 390px;
  top: 740px;
  left: 0;
  right: 0;
  margin: 0px auto;
  font-family: serif;
}
.hline {
  margin: 20px 0;
  border: 1px solid #666666;
}
.flex2 {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}
.sns {
  box-sizing: border-box;
  position: absolute;
  max-width: 390px;
  height: 40px;
  top: 70px;
  left: 0;
  right: 0;
  margin: 0 auto;
  padding-right: 6px;
  display: flex;
  justify-content: flex-end;
  gap: 0 20px;
}
.topmenu {
  box-sizing: border-box;
  position: fixed;
  width: 390px;
  height: 60px;
  top: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  font-family: serif;
  font-size: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  padding: 0 45px;
  gap: 0 30px;
  background-color: rgb(0 0 0 / 70%);
}
.foot {
  margin: 30px 0;
  text-align: center;
  font-family: serif;
  font-size: 0.8rem;
}
@keyframes fade-in {
  0% {opacity: 0;}
  100% {opacity: 1;}
}
@keyframes blinking {
  0%   { opacity: 0; }
  50%  { opacity: 1; }
  100% { opacity: 0; }
}
@keyframes slide-in {
  0% { transform: translateY(400px); opacity: 0;}
  100% { transform: translateY(0); opacity: 1;}
}