@charset "utf-8";
html {
  font-size: 62.5%;
  width: 100%;
}
body {
  color: #333;
  font-family: "BokutohRera 5", "Yu Gothic medium", "SimSun", "Noto Serif TC", "Hiragino Sans", "Meiryo", 'SimSun', "sans-serif";
  font-weight: 500;
  font-size: 1.6em;
  line-height: 2.4rem;
  text-align: center;
  box-sizing: border-box;
}
#wrapper{
    width:100%;
    height: 100vh;
    background-image: linear-gradient(165deg, #140F90, #8624BF, #ace0f9, #fff1eb);
    background-size: 120% 120%;
    animation: BGAnimation 10s ease infinite;
}
  @keyframes BGAnimation{
  0% {background-position: 0% 50%;}
  50% {background-position: 100% 50%;}
  100% {background-position: 0% 50%;}
}
canvas{/*waveエリア*/
    position: absolute;
    bottom: 0;
    left:0;
    width: 100%;
}
a:hover {
  opacity: 0.5;
}
.none {
  display: none
}
*, *:before, *:after {
  box-sizing: border-box;
}
.header {
  height: 40px;
  width: 100%;
  background-color: #FFFFFF;
  position: fixed;
  z-index: 1000;
}
.header-content-wrapper {
  display: flex;
  position: relative;
  justify-content: space-between;
}
.logo img {
  height: 40px;
  width: auto;
  position: absolute;
  left: 40px;
}

.nav-wrapper {
  display: flex;
  width: 90%;
  margin: 10px 50px;
  justify-content: flex-end;
}
.open-button {
  display: block;
  position: absolute;
  top: 10px;
  right: 20px;
  width: 25px;
  height: 3px;
  cursor: pointer;
}
.open-button span, .open-button span::before, .open-button span::after {
  height: 3px;
  width: 30px;
  background-image: linear-gradient(to right, #ace0f9 50%, #fff1eb 100%);
  display: block;
  content: "";
  position: absolute;
}
.open-button span::before {
  bottom: -8px;
}
.open-button span::after {
  bottom: -16px;
}
.language {
  font-size: 2.0rem;
  margin-right: 0px;
  display: flex;
  text-align: center;
}
.jp {
  background-image: url("../img/index/JP.png");
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  padding: 1px 7px;
  color: #333;
}
.en {
  background-image: url("../img/index/EN.png");
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  padding: 1px 7px;
  color: #333;
}
.cn {
  background-image: url("../img/index/CN.png");
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  padding: 1px 7px;
}
.close-button {
  display: block;
  position: absolute;
  top: 0;
  right: 0;
  color: #000;
  font-size: 3rem;
  padding: 10px;
}
@media(max-width: 1160px){
.navigation {
  display: none;
  z-index: 100;
  position: fixed;
  top: 0;
  right: 0;
  background-color: rgba(255,255,255,0.80);
  width: 40%;
  height: 50%;
  padding: 80px 40px;
  box-shadow: 10px 10px 25px rgba(0, 0, 0, 0.5);
}
  .nav-wrapper{
    max-width: 200px;
  }
.navigation ul li a {
  margin: 60px auto;
  font-size: 1.8rem;
  line-height: 60px;
  vertical-align: middle;
  border-bottom: solid 1px rgba(255, 255, 255, 0.5)
}
.copyright{
  width: 300px;
  text-align: center;
  margin: 40px auto 0px;
  font-size: 0.6rem;
}}
@media(min-width: 1160px) {
  .header {
    height: 60px;
    position: fixed;
    z-index: 1000; 
  }
  .header-content-wrapper {
    width: 1160px;
    margin: auto;
    display: flex;
    justify-content: space-between;
  }
  .logo img {
    height: 60px;
    width: auto;
    left: 0px;
  }
  .nav-wrapper {
    max-width: 1000px;
  }
  .open-button, .close-button {
    display: none;
  }
  .navigation {
    display: flex;
    z-index: 100;
  }
  .navigation ul {
    display: flex;
    margin-top: auto 20px;
    height: 60px;
  }
  .navigation ul li {
    margin: 20px 10px;
    font-size: 2.6rem;
  }
  .language {
    font-size: 2.4rem;
    color: #666;
    margin: auto 20px;
    display: flex;
    text-align: center;
    padding: 10px;
  }
  .copyright{
  text-align: center;
  margin: 10px auto 0px;
  width: 1000px;
  font-size: 1.0rem;
}
}
a {
  text-decoration: none;
  color: #000;
}