.big_logo {
  position: relative;
  height: 26.875rem;
  overflow: hidden;
}
.pic {
  position: absolute;
  width: 104%;
  height: 100%;
  margin-left: -2%;
  top: 0;
  left: 0;
}

.pic >:nth-child(1) {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 4;
  transition:  .5s linear 0s;
  opacity: 0;
}

/* .pic :nth-child(1):hover {
  display: block;
} */

.pic >:nth-child(2) {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 3;
  transition:  .5s linear .5s;
  opacity: 0;
}

.pic >:nth-child(3) {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 2;
  transition:  .5s linear 1s;
  opacity: 0;
}

.pic >:nth-child(4) {
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: 1;
  transition:  .5s linear 1.5s;
  opacity: 0;
}

.big_logo .text {
  position: absolute;
  top: 4.6875rem;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 10;
  font-size: .75rem;
  color: #EE4E74;
}

.big_logo .text > * {
  margin: .1875rem 0;
}

.big_logo .text h1 {
  font-size: 1.875rem;
  font-family: "Selphia";
  margin-bottom: .325rem;
}

.big_logo .text p {
  text-shadow: white 0.1em 0.1em 0.2em;
}

.big_logo .text .butterfly {
  position: absolute;
  top: -0.40625rem;
  left: 3.28125rem;
  width: 1.5rem;
}

.big_logo .button {
  position: absolute;
  top: 12.5rem;
  left: 51%;
  transform: translateX(-50%);
  z-index: 999;
  width: 7.0625rem;
  height: 1.875rem;
  font-size: 1.0625rem;
  text-align: center;
  line-height: 1.875rem;
  border-radius: .9375rem;
  border: none;
  background:rgba(241,241,241,1);
  font-family: Arial;
  font-weight: bold;
}

.big_logo .button a {
  color: #EE4E74;
}

.blue {
  height: 13.5625rem;
  background-color: #6A6ADC;
  text-align: center;
  overflow: hidden;
  border-bottom: .1875rem solid #EE4E74;
}

.blue h1 {
  color: #fff000;
  font-size: 2.8125rem;
  margin-top: 2.5rem;
  margin-bottom: .5rem;
  font-family: "Selphia";
}

.blue p {
  font-size: 1.875rem;
  color: #fff;
}

.main .about {
  height: 17.625rem;
  padding: 2rem 13.75rem 0 13.125rem;
  color:rgba(238,78,116,1);
}

.main .about h1 {
  font-size: 2.8125rem;
  font-family: "Selphia";
}

.main .about p {
  font-size: .8125rem;
  margin: .625rem 0;
}