@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@200..900&display=swap");
/*intro */
#intro {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 999;
}
#intro .mask {
  width: 100vw;
  height: 100vh;
}
#intro .mask:before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: #000;
  -moz-transform: scaleX(1);
  -ms-transform: scaleX(1);
  -webkit-transform: scaleX(1);
  transform: scaleX(1);
  -moz-transform-origin: left center;
  -ms-transform-origin: left center;
  -webkit-transform-origin: left center;
  transform-origin: left center;
  -moz-transition: -moz-transform 1s ease-in-out;
  -o-transition: -o-transform 1s ease-in-out;
  -webkit-transition: -webkit-transform 1s ease-in-out;
  transition: transform 1s ease-in-out;
  -moz-transition-delay: 2s;
  -o-transition-delay: 2s;
  -webkit-transition-delay: 2s;
  transition-delay: 2s;
  opacity: 0.5;
  z-index: 998;
}
#intro .mask:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: #434343;
  -moz-transform: scaleX(1);
  -ms-transform: scaleX(1);
  -webkit-transform: scaleX(1);
  transform: scaleX(1);
  -moz-transform-origin: left center;
  -ms-transform-origin: left center;
  -webkit-transform-origin: left center;
  transform-origin: left center;
  -moz-transition: -moz-transform 0.8s ease-in-out;
  -o-transition: -o-transform 0.8s ease-in-out;
  -webkit-transition: -webkit-transform 0.8s ease-in-out;
  transition: transform 0.8s ease-in-out;
  -moz-transition-delay: 2s;
  -o-transition-delay: 2s;
  -webkit-transition-delay: 2s;
  transition-delay: 2s;
  z-index: 999;
}
#intro.show .mask:before {
  -moz-transform: scaleX(0);
  -ms-transform: scaleX(0);
  -webkit-transform: scaleX(0);
  transform: scaleX(0);
}
#intro.show .mask:after {
  -moz-transform: scaleX(0);
  -ms-transform: scaleX(0);
  -webkit-transform: scaleX(0);
  transform: scaleX(0);
}

.intro {
  width: 60px;
  position: absolute;
  top: 50vh;
  left: 50vw;
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  margin-left: -10px;
  z-index: 1000;
}
.intro img {
  width: 100%;
}
.intro .intro1 {
  margin-left: -10px;
  margin-bottom: -3px;
  opacity: 0;
  -moz-transform: scale(1.5);
  -ms-transform: scale(1.5);
  -webkit-transform: scale(1.5);
  transform: scale(1.5);
  -moz-transition: opacity 0.6s, -moz-transform 0.6s ease-out;
  -o-transition: opacity 0.6s, -o-transform 0.6s ease-out;
  -webkit-transition: opacity 0.6s, -webkit-transform 0.6s ease-out;
  transition: opacity 0.6s, transform 0.6s ease-out;
  z-index: 2;
}
.intro .intro2 {
  margin-top: 5px;
  margin-left: 25px;
  opacity: 0;
  -moz-transform: scale(1.5);
  -ms-transform: scale(1.5);
  -webkit-transform: scale(1.5);
  transform: scale(1.5);
  -moz-transition: opacity 0.6s, -moz-transform 0.6s ease-out;
  -o-transition: opacity 0.6s, -o-transform 0.6s ease-out;
  -webkit-transition: opacity 0.6s, -webkit-transform 0.6s ease-out;
  transition: opacity 0.6s, transform 0.6s ease-out;
  -moz-transition-delay: 0.3s;
  -o-transition-delay: 0.3s;
  -webkit-transition-delay: 0.3s;
  transition-delay: 0.3s;
}
.intro .bl {
  display: block;
}
.intro .wh {
  display: none;
}
.intro .intro-box {
  position: relative;
  opacity: 0;
  -moz-transition: opacity 0.5s;
  -o-transition: opacity 0.5s;
  -webkit-transition: opacity 0.5s;
  transition: opacity 0.5s;
  -moz-transition-delay: 0.5s;
  -o-transition-delay: 0.5s;
  -webkit-transition-delay: 0.5s;
  transition-delay: 0.5s;
}
.intro .intro-box:before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 38px;
  height: 8px;
  background-color: #434343;
  -moz-transform: scaleX(1);
  -ms-transform: scaleX(1);
  -webkit-transform: scaleX(1);
  transform: scaleX(1);
  -moz-transform-origin: left 50%;
  -ms-transform-origin: left 50%;
  -webkit-transform-origin: left 50%;
  transform-origin: left 50%;
  -moz-transition: -moz-transform 0.3s;
  -o-transition: -o-transform 0.3s;
  -webkit-transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
  -moz-transition-delay: 1.2s;
  -o-transition-delay: 1.2s;
  -webkit-transition-delay: 1.2s;
  transition-delay: 1.2s;
}
.intro .intro-box:after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 8px;
  background-color: #434343;
  -moz-transform: scaleX(1);
  -ms-transform: scaleX(1);
  -webkit-transform: scaleX(1);
  transform: scaleX(1);
  -moz-transform-origin: right 50%;
  -ms-transform-origin: right 50%;
  -webkit-transform-origin: right 50%;
  transform-origin: right 50%;
  -moz-transition: -moz-transform 0.3s;
  -o-transition: -o-transform 0.3s;
  -webkit-transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
  -moz-transition-delay: 1s;
  -o-transition-delay: 1s;
  -webkit-transition-delay: 1s;
  transition-delay: 1s;
}
.intro.show .intro1 {
  opacity: 1;
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -webkit-transform: scale(1);
  transform: scale(1);
}
.intro.show .intro2 {
  opacity: 1;
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -webkit-transform: scale(1);
  transform: scale(1);
}
.intro.show .intro-box {
  opacity: 1;
}
.intro.show .intro-box:before {
  -moz-transform: scaleX(0);
  -ms-transform: scaleX(0);
  -webkit-transform: scaleX(0);
  transform: scaleX(0);
}
.intro.show .intro-box:after {
  -moz-transform: scaleX(0);
  -ms-transform: scaleX(0);
  -webkit-transform: scaleX(0);
  transform: scaleX(0);
}

/*index */
.main {
  margin-top: 100vh;
}

.big {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100%;
  z-index: -1;
}
.big-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  opacity: 0;
  z-index: 5;
  -moz-transition: opacity 0.8s;
  -o-transition: opacity 0.8s;
  -webkit-transition: opacity 0.8s;
  transition: opacity 0.8s;
}
.big-mask.show {
  opacity: 0.5;
}
.big-pic {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  -moz-transform: scale(1.1);
  -ms-transform: scale(1.1);
  -webkit-transform: scale(1.1);
  transform: scale(1.1);
  -moz-transition: -moz-transform 6s;
  -o-transition: -o-transform 6s;
  -webkit-transition: -webkit-transform 6s;
  transition: transform 6s;
}
.big-pic:nth-child(1) {
  background-position: 63%;
}
.big-pic:nth-child(2) {
  background-position: 30%;
}
.big-pic:nth-child(3) {
  background-position: 35%;
}
.big-pic.move-img {
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -webkit-transform: scale(1);
  transform: scale(1);
}
.big-text {
  position: absolute;
  right: 10%;
  bottom: 20%;
  line-height: 1.5;
  font-size: 1.25rem;
  z-index: 4;
}

.about {
  background-color: #fff;
  color: #000;
  padding-top: 5vw;
}
.about-inner {
  position: relative;
  width: 90%;
  max-width: 1200px;
  margin: auto;
}
.about .line-in {
  background-color: #ddd;
}
.about .title:before {
  background-color: #bbb;
}
.about-content {
  padding: 0 80px;
}
.about-wrap {
  margin-top: 5vw;
  display: flex;
  justify-content: space-between;
  -webkit-align-items: center;
  align-items: center;
  -webkit-flex-direction: row-reverse;
  flex-direction: row-reverse;
}
.about-img {
  width: 40%;
}
.about-img img {
  width: 100%;
}
.about-text {
  width: 450px;
}
.about-pm {
  -moz-transition: -moz-transform 0.1s;
  -o-transition: -o-transform 0.1s;
  -webkit-transition: -webkit-transform 0.1s;
  transition: transform 0.1s;
}
.about .aimg {
  width: 100%;
  -moz-transform: scale(1.15);
  -ms-transform: scale(1.15);
  -webkit-transform: scale(1.15);
  transform: scale(1.15);
}
.about-in {
  margin-bottom: 30px;
}
.about-name {
  display: inline-block;
  margin-right: 20px;
}
.about p {
  display: inline;
}
.about-en {
  margin-top: 30px;
}
.about .button {
  margin-top: 80px;
  margin-left: calc(50% - 88px);
}
.about .button-box {
  border: 1px solid #ddd;
  color: #000;
}

.project {
  padding-bottom: 5vw;
}
.project-middle {
  position: relative;
  width: 75%;
  height: 32vw;
  margin-top: -16vw;
  margin-bottom: 200px;
  overflow: hidden;
}
.project-pm {
  -moz-transition: -moz-transform 0.05s;
  -o-transition: -o-transform 0.05s;
  -webkit-transition: -webkit-transform 0.05s;
  transition: transform 0.05s;
}
.project-mpic {
  width: 100%;
  height: calc(75vw * 1080 / 1920);
  background-position: center;
  background-size: cover;
}
.project-inner {
  position: relative;
  width: 80%;
  max-width: 1200px;
  margin: auto;
}
.project .title {
  margin: 5vw 5%;
}
.project-list {
  position: relative;
  margin-bottom: 5vw;
  display: block;
  overflow: hidden;
}
.project-list:last-child {
  margin-bottom: 0;
}
.project-list:hover .project-pic:before {
  opacity: 0.5;
}
.project-list:hover .project-button:after {
  width: 80px;
}
.project-pic {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.project-pic:before {
  content: "";
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background-color: #000;
  opacity: 0.2;
  -moz-transition: opacity 0.5s;
  -o-transition: opacity 0.5s;
  -webkit-transition: opacity 0.5s;
  transition: opacity 0.5s;
  z-index: 1;
}
.project-ppm {
  -moz-transition: -moz-transform 0.05s;
  -o-transition: -o-transform 0.05s;
  -webkit-transition: -webkit-transform 0.05s;
  transition: transform 0.05s;
}
.project .pimg {
  width: 100%;
  height: 50vw;
  background-position: center;
  background-size: cover;
}
.project-in {
  position: absolute;
  top: 50%;
  right: 10%;
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
}
.project-name {
  font-size: 20px;
  letter-spacing: 0.2em;
  line-height: 1.5;
}
.project-name .tw {
  display: block;
}
.project-text {
  letter-spacing: 0.25em;
  font-size: 13px;
}
.project-button {
  margin-top: 20px;
  opacity: 0.5;
}
.project-button:after {
  content: "";
  width: 50px;
  height: 1px;
  background: #FFF;
  display: inline-block;
  vertical-align: middle;
  margin-left: 10px;
  -moz-transition: width 0.6s;
  -o-transition: width 0.6s;
  -webkit-transition: width 0.6s;
  transition: width 0.6s;
}

.service {
  padding: 5vw 0;
  color: #000;
  background-color: #fff;
}
.service-inner {
  position: relative;
  width: 90%;
  max-width: 1200px;
  margin: auto;
}
.service-content {
  margin-top: 20px;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-direction: row-reverse;
  flex-direction: row-reverse;
  -webkit-align-items: flex-end;
  align-items: flex-end;
}
.service-list {
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-justify-content: space-between;
  justify-content: space-between;
}
.service-item {
  width: 40%;
  margin: 40px 0 0 10%;
}
.service-step {
  font-size: 16px;
  margin-bottom: 5px;
}
.service-text {
  color: #666;
  border-left: #ccc solid 1px;
  padding-left: 10px;
}
.service .button-box {
  white-space: nowrap;
  letter-spacing: 5px;
  border: 1px solid #ddd;
  color: #000;
  padding: 8px 15px 8px 20px;
}

.about .n1 {
  opacity: 0;
  -moz-transform: scale(4) translateX(30px);
  -ms-transform: scale(4) translateX(30px);
  -webkit-transform: scale(4) translateX(30px);
  transform: scale(4) translateX(30px);
  -moz-transition: opacity 0.8s, -moz-transform 1.2s;
  -o-transition: opacity 0.8s, -o-transform 1.2s;
  -webkit-transition: opacity 0.8s, -webkit-transform 1.2s;
  transition: opacity 0.8s, transform 1.2s;
}
.about .n2 {
  opacity: 0;
  -moz-transform: scale(4) translateX(30px);
  -ms-transform: scale(4) translateX(30px);
  -webkit-transform: scale(4) translateX(30px);
  transform: scale(4) translateX(30px);
  -moz-transition: opacity 0.8s, -moz-transform 1.2s;
  -o-transition: opacity 0.8s, -o-transform 1.2s;
  -webkit-transition: opacity 0.8s, -webkit-transform 1.2s;
  transition: opacity 0.8s, transform 1.2s;
  -moz-transition-delay: 0.2s;
  -o-transition-delay: 0.2s;
  -webkit-transition-delay: 0.2s;
  transition-delay: 0.2s;
}
.about-in p {
  display: inline-block;
  opacity: 0;
  -moz-transform: translateY(30px);
  -ms-transform: translateY(30px);
  -webkit-transform: translateY(30px);
  transform: translateY(30px);
  -moz-transition: -moz-transform 1s, opacity 1s;
  -o-transition: -o-transform 1s, opacity 1s;
  -webkit-transition: -webkit-transform 1s, opacity 1s;
  transition: transform 1s, opacity 1s;
  -moz-transition-delay: 0.6s;
  -o-transition-delay: 0.6s;
  -webkit-transition-delay: 0.6s;
  transition-delay: 0.6s;
}
.about .end {
  display: inline-block;
  opacity: 0;
  -moz-transform: translateY(30px);
  -ms-transform: translateY(30px);
  -webkit-transform: translateY(30px);
  transform: translateY(30px);
  -moz-transition: -moz-transform 1s, opacity 1.2s;
  -o-transition: -o-transform 1s, opacity 1.2s;
  -webkit-transition: -webkit-transform 1s, opacity 1.2s;
  transition: transform 1s, opacity 1.2s;
  -moz-transition-delay: 1s;
  -o-transition-delay: 1s;
  -webkit-transition-delay: 1s;
  transition-delay: 1s;
}
.about-en p {
  display: inline-block;
  opacity: 0;
  -moz-transform: translateY(30px);
  -ms-transform: translateY(30px);
  -webkit-transform: translateY(30px);
  transform: translateY(30px);
  -moz-transition: -moz-transform 1s, opacity 1.2s;
  -o-transition: -o-transform 1s, opacity 1.2s;
  -webkit-transition: -webkit-transform 1s, opacity 1.2s;
  transition: transform 1s, opacity 1.2s;
  -moz-transition-delay: 1.2s;
  -o-transition-delay: 1.2s;
  -webkit-transition-delay: 1.2s;
  transition-delay: 1.2s;
}
.about-img {
  position: relative;
}
.about-img:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #fff;
  -moz-transition: width 0.6s;
  -o-transition: width 0.6s;
  -webkit-transition: width 0.6s;
  transition: width 0.6s;
}
.about .button {
  opacity: 0;
  -moz-transform: translateY(30px);
  -ms-transform: translateY(30px);
  -webkit-transform: translateY(30px);
  transform: translateY(30px);
  -moz-transition: -moz-transform 1s, opacity 1s;
  -o-transition: -o-transform 1s, opacity 1s;
  -webkit-transition: -webkit-transform 1s, opacity 1s;
  transition: transform 1s, opacity 1s;
  -moz-transition-delay: 1.5s;
  -o-transition-delay: 1.5s;
  -webkit-transition-delay: 1.5s;
  transition-delay: 1.5s;
}
.about.show .n1 {
  opacity: 1;
  -moz-transform: scale(1) translateX(0);
  -ms-transform: scale(1) translateX(0);
  -webkit-transform: scale(1) translateX(0);
  transform: scale(1) translateX(0);
}
.about.show .n2 {
  opacity: 1;
  -moz-transform: scale(1) translateX(0);
  -ms-transform: scale(1) translateX(0);
  -webkit-transform: scale(1) translateX(0);
  transform: scale(1) translateX(0);
}
.about.show .about-in p {
  opacity: 1;
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
.about.show .end {
  opacity: 1;
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
.about.show .about-en p {
  opacity: 1;
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
.about.show .about-img:after {
  width: 0;
}
.about.show .button {
  opacity: 1;
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
}

.project .project-pic {
  opacity: 0;
  -moz-transform: translateY(30px);
  -ms-transform: translateY(30px);
  -webkit-transform: translateY(30px);
  transform: translateY(30px);
  -moz-transition: -moz-transform 1s, opacity 1s;
  -o-transition: -o-transform 1s, opacity 1s;
  -webkit-transition: -webkit-transform 1s, opacity 1s;
  transition: transform 1s, opacity 1s;
}
.project .project-in {
  opacity: 0;
  -moz-transition: opacity 1s;
  -o-transition: opacity 1s;
  -webkit-transition: opacity 1s;
  transition: opacity 1s;
}
.project.show .project-pic {
  opacity: 1;
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
.project.show .project-in {
  opacity: 1;
}

.service-list {
  opacity: 0;
  -moz-transform: translateY(30px);
  -ms-transform: translateY(30px);
  -webkit-transform: translateY(30px);
  transform: translateY(30px);
  -moz-transition: -moz-transform 1s, opacity 1s;
  -o-transition: -o-transform 1s, opacity 1s;
  -webkit-transition: -webkit-transform 1s, opacity 1s;
  transition: transform 1s, opacity 1s;
}
.service .button {
  opacity: 0;
  -moz-transition: opacity 1s;
  -o-transition: opacity 1s;
  -webkit-transition: opacity 1s;
  transition: opacity 1s;
}
.service.show .service-list {
  opacity: 1;
  -moz-transform: translateY(0px);
  -ms-transform: translateY(0px);
  -webkit-transform: translateY(0px);
  transform: translateY(0px);
}
.service.show .button {
  opacity: 1;
}

@media screen and (max-width: 1100px) {
  #intro {
    background: #fff;
  }
  #intro .mask:before {
    background-color: #ddd;
  }
  #intro .mask:after {
    background-color: #fff;
  }
  #intro .intro-box:before {
    background-color: #fff;
  }
  #intro .intro-box:after {
    background-color: #fff;
  }

  .intro .bl {
    display: none;
  }
  .intro .wh {
    display: block;
  }

  .big-text {
    color: #FFF;
  }

  .about-content {
    padding: 0;
    display: block;
  }
  .about-img {
    width: 35%;
  }
  .about-in p {
    display: inline-block;
  }
  .about-in .bl {
    display: none;
  }
  .about-in .wh {
    display: inline-block;
  }
  .about .button {
    margin-left: 0;
    margin-top: 50px;
  }

  .project .title {
    margin-top: 0;
  }
  .project-list {
    display: block;
  }
  .project-list:hover .project-pic:before {
    opacity: 0.2;
  }
  .project-name {
    font-size: 16px;
  }
  .project-name .tw {
    display: inline;
    vertical-align: middle;
  }
  .project-name .tw:after {
    content: "/";
    margin: 0 5px 0 10px;
  }
  .project-pic:before {
    opacity: 0;
    background: #FFF;
  }
  .project-in {
    position: static;
    margin: 20px 5% 0;
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
  .project-button:after {
    background: #999;
  }

  .service {
    padding-bottom: 10vw;
  }
  .service-content {
    display: block;
  }
  .service-item {
    margin-left: 0;
    width: 45%;
  }
  .service .button {
    margin-top: 60px;
  }
}
@media screen and (max-width: 860px) {
  .about {
    padding-top: 8vh;
  }
  .about-img {
    display: none;
  }
  .about-text {
    width: 100%;
  }

  .project {
    padding-bottom: 4vh;
  }
  .project-name {
    font-size: 14px;
  }
  .project-button {
    font-size: 10px;
  }
  .project .pimg {
    height: 60vw;
  }

  .service {
    padding: 4vh 0 8vh;
  }
}
@media screen and (max-width: 640px) {
  .big-text {
    font-size: 16px;
    right: 30px;
    left: 30px;
    bottom: 15%;
  }

  .about-content {
    padding: 0;
  }
  .about-wrap {
    margin-top: 20px;
  }
  .about-name {
    width: 40px;
  }
  .about-text {
    margin-top: 30px;
  }

  .project .title {
    margin-bottom: 4vh;
  }
  .project-list {
    margin-bottom: 8vh;
  }

  .service-list {
    display: block;
  }
  .service-item {
    width: auto;
  }
  .service .button {
    margin-top: 40px;
  }
}
@media screen and (max-width: 460px) {
  .about-in p {
    display: block;
    margin-top: 10px;
  }
}