@charset "UTF-8";
@import url("https://fonts.googleapis.com/css?family=Raleway");
@-webkit-keyframes loading {
  0% {
    left: -30px;
  }
  70% {
    left: 100%;
  }
  100% {
    left: 100%;
  }
}
@-moz-keyframes loading {
  0% {
    left: -30px;
  }
  70% {
    left: 100%;
  }
  100% {
    left: 100%;
  }
}
@-o-keyframes loading {
  0% {
    left: -30px;
  }
  70% {
    left: 100%;
  }
  100% {
    left: 100%;
  }
}
@keyframes loading {
  0% {
    left: -30px;
  }
  70% {
    left: 100%;
  }
  100% {
    left: 100%;
  }
}
.lo {
  display: block;
  height: 2px;
}

.svg-ref {
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
}

.intro {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #222;
  z-index: 8;
  cursor: pointer;
}
.intro-wrap {
  position: absolute;
  width: 150px;
  height: 150px;
  top: 50%;
  left: 50%;
  margin-left: -75px;
  margin-top: -75px;
}
.intro-logo {
  width: 150px;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  z-index: 1;
}
.intro-logo img {
  width: 100%;
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  margin-top: -30px;
}
.intro-tw1 {
  animation: tw 1.6s 1s forwards;
}
.intro-tw2 {
  animation: tw 1.6s 1.6s forwards;
}
.intro-en1 {
  -webkit-animation: letter 1s 2.8s forwards;
  animation: letter 1s 2.8s forwards;
}
.intro-en2 {
  -webkit-animation: letter 1s 3.4s forwards;
  animation: letter 1s 3.4s forwards;
}

@-webkit-keyframes tw {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-moz-keyframes tw {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-o-keyframes tw {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes tw {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@-webkit-keyframes letter {
  0% {
    opacity: 0;
    -webkit-transform: translateX(15px);
    -ms-transform: translateX(15px);
    transform: translateX(15px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0px);
    -ms-transform: translateX(0px);
    transform: translateX(0px);
  }
}
@-moz-keyframes letter {
  0% {
    opacity: 0;
    -webkit-transform: translateX(15px);
    -ms-transform: translateX(15px);
    transform: translateX(15px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0px);
    -ms-transform: translateX(0px);
    transform: translateX(0px);
  }
}
@-o-keyframes letter {
  0% {
    opacity: 0;
    -webkit-transform: translateX(15px);
    -ms-transform: translateX(15px);
    transform: translateX(15px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0px);
    -ms-transform: translateX(0px);
    transform: translateX(0px);
  }
}
@keyframes letter {
  0% {
    opacity: 0;
    -webkit-transform: translateX(15px);
    -ms-transform: translateX(15px);
    transform: translateX(15px);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateX(0px);
    -ms-transform: translateX(0px);
    transform: translateX(0px);
  }
}
@-webkit-keyframes smallEn {
  0% {
    opacity: 0;
    -webkit-transform: rotate(-60deg);
    -ms-transform: rotate(-60deg);
    transform: rotate(-60deg);
  }
  100% {
    opacity: 1;
    -webkit-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}
@-moz-keyframes smallEn {
  0% {
    opacity: 0;
    -webkit-transform: rotate(-60deg);
    -ms-transform: rotate(-60deg);
    transform: rotate(-60deg);
  }
  100% {
    opacity: 1;
    -webkit-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}
@-o-keyframes smallEn {
  0% {
    opacity: 0;
    -webkit-transform: rotate(-60deg);
    -ms-transform: rotate(-60deg);
    transform: rotate(-60deg);
  }
  100% {
    opacity: 1;
    -webkit-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}
@keyframes smallEn {
  0% {
    opacity: 0;
    -webkit-transform: rotate(-60deg);
    -ms-transform: rotate(-60deg);
    transform: rotate(-60deg);
  }
  100% {
    opacity: 1;
    -webkit-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}
.logo-tw1,
.logo-tw2,
.letter {
  opacity: 0;
}

.logo-tw1 {
  animation: tw 2s 1s forwards;
}

.logo-tw2 {
  animation: tw 1.6s 2s forwards;
}

.tw-s1 {
  -webkit-animation: letter 1s 3.6s forwards;
  animation: letter 1s 3.6s forwards;
}

.tw-s2 {
  -webkit-animation: letter 1s 3.4s forwards;
  animation: letter 1s 3.4s forwards;
}

.tw-s3 {
  -webkit-animation: letter 1s 3.6s forwards;
  animation: letter 1s 3.6s forwards;
}

.tw-s4 {
  -webkit-animation: letter 1s 3.8s forwards;
  animation: letter 1s 3.8s forwards;
}

.enK {
  -webkit-animation: letter 1.5s 3.4s forwards;
  animation: letter 1.5s 3.4s forwards;
}

.enU {
  -webkit-animation: letter 1.5s 3.6s forwards;
  animation: letter 1.5s 3.6s forwards;
}

.enA {
  -webkit-animation: letter 1.5s 3.8s forwards;
  animation: letter 1.5s 3.8s forwards;
}

.enN {
  -webkit-animation: letter 1.5s 3.4s forwards;
  animation: letter 1.5s 3.4s forwards;
}

.enY {
  -webkit-animation: letter 1.5s 3.6s forwards;
  animation: letter 1.5s 3.6s forwards;
}

.enE {
  -webkit-animation: letter 1.5s 3.8s forwards;
  animation: letter 1.5s 3.8s forwards;
}

.enN2 {
  -webkit-animation: letter 1.5s 3.4s forwards;
  animation: letter 1.5s 3.4s forwards;
}

.smallEn {
  -webkit-animation: smallEn 2s 4.5s forwards;
  animation: smallEn 2s 4.5s forwards;
  -webkit-transform-origin: 50% 50%;
  -ms-transform-origin: 50% 50%;
  transform-origin: 50% 50%;
}

.open {
  position: fixed;
  width: 75vw;
  height: 75vh;
  top: 50%;
  left: 50%;
  margin-left: -37.5vw;
  margin-top: -37.5vh;
  top: 55%;
}
.open li {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: no-repeat center center;
  background-size: contain;
  opacity: 0;
  -webkit-transition: opacity 2s linear;
  -o-transition: opacity 2s linear;
  transition: opacity 2s linear;
}
.open li:nth-child(1) {
  background-image: url("../images/index/1.jpg");
}
.open li:nth-child(2) {
  background-image: url("../images/index/3.jpg");
}
.open li:nth-child(3) {
  background-image: url("../images/index/4.jpg");
}
.open li:nth-child(4) {
  background-image: url("../images/index/5.jpg");
}

/*------------------------------------------
 *             tablet 、 Mobile
 *------------------------------------------*/
@media only screen and (max-width: 900px) {
  .open {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 50%;
    left: 50%;
    margin-left: -50vw;
    margin-top: -50vh;
  }
}
@media only screen and (max-width: 640px) {
  .intro-logo {
    width: 125px;
  }

  .open li:nth-child(1) {
    background-image: url("../images/index/s1.jpg");
  }
  .open li:nth-child(2) {
    background-image: url("../images/index/s3.jpg");
  }
  .open li:nth-child(3) {
    background-image: url("../images/index/s4.jpg");
  }
  .open li:nth-child(4) {
    background-image: url("../images/index/s5.jpg");
  }
}