@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@200..900&display=swap");
.main {
  margin-top: 100vh;
  position: relative;
}

.big {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100vw;
  background-color: #282828;
  z-index: -1;
}
.big-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 70%;
  background-color: #000;
  opacity: 0.3;
  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: 0.7;
}
.big-pic {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 70%;
  background-position: center;
  background-size: cover;
}

.slogan-inner {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}
.slogan-content {
  text-align: center;
  max-width: 450px;
  margin: auto;
  line-height: 1.8em;
}
.slogan-content span {
  display: block;
}

.charge {
  padding: 5vw 0;
  background-color: #434343;
}
.charge-inner {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}
.charge-content {
  padding: 5vw 70px 0;
  display: -ms-flexbox;
  display: flex;
  justify-content: space-between;
}
.charge-info {
  text-align: center;
}
.charge-title {
  color: #bbb;
  font-size: 16px;
  font-weight: 600;
  margin: 30px 0;
}
.charge-icon {
  width: 80px;
  height: 80px;
  margin: 0px auto;
}
.charge-icon img {
  width: 100%;
  filter: brightness(7);
}
.charge-text {
  line-height: 1.8em;
}

.service {
  padding: 5vw 0;
  background: #FFF;
  color: #000;
}
.service-inner {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}
.service-list {
  padding: 5vw 70px 0;
}
.service-item {
  margin-bottom: 30px;
  padding-bottom: 30px;
  border-bottom: #ddd dotted 1px;
  display: -ms-flexbox;
  display: flex;
}
.service-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}
.service-icon {
  width: 60px;
  height: 60px;
}
.service-icon img {
  width: 100%;
  filter: brightness(7);
}
.service-content {
  margin-left: 30px;
  width: calc(100% - 90px);
}
.service-title {
  color: #bbb;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}
.service-text {
  line-height: 1.8em;
}
.service-text li {
  position: relative;
  padding-left: 20px;
}
.service-text li:before {
  content: "";
  position: absolute;
  left: 5px;
  top: 0.9em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #000;
  opacity: 0.2;
  margin-top: -2px;
}

.construction-charge {
  opacity: 0.5;
}

.big-title {
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
  -moz-transition: -moz-transform 0.8s 0.3s;
  -o-transition: -o-transform 0.8s 0.3s;
  -webkit-transition: -webkit-transform 0.8s;
  -webkit-transition-delay: 0.3s;
  transition: transform 0.8s 0.3s;
}
.big-title:after {
  -moz-transform: scale(0);
  -ms-transform: scale(0);
  -webkit-transform: scale(0);
  transform: scale(0);
  -moz-transform-origin: center top;
  -ms-transform-origin: center top;
  -webkit-transform-origin: center top;
  transform-origin: center top;
  -moz-transition: -moz-transform 0.8s;
  -o-transition: -o-transform 0.8s;
  -webkit-transition: -webkit-transform 0.8s;
  transition: transform 0.8s;
  -moz-transition-delay: 2.5s;
  -o-transition-delay: 2.5s;
  -webkit-transition-delay: 2.5s;
  transition-delay: 2.5s;
}
.big-title-s {
  overflow: hidden;
}
.big-title-s span {
  display: inline-block;
  opacity: 0;
  -moz-transform: translateY(20px);
  -ms-transform: translateY(20px);
  -webkit-transform: translateY(20px);
  transform: translateY(20px);
  -moz-transition: opacity 0.5s, -moz-transform 0.8s ease-in-out;
  -o-transition: opacity 0.5s, -o-transform 0.8s ease-in-out;
  -webkit-transition: opacity 0.5s, -webkit-transform 0.8s ease-in-out;
  transition: opacity 0.5s, transform 0.8s ease-in-out;
}
.big-title-s span:nth-child(1) {
  -moz-transition-delay: 0.2s;
  -o-transition-delay: 0.2s;
  -webkit-transition-delay: 0.2s;
  transition-delay: 0.2s;
}
.big-title-s span:nth-child(2) {
  -moz-transition-delay: 0.25s;
  -o-transition-delay: 0.25s;
  -webkit-transition-delay: 0.25s;
  transition-delay: 0.25s;
}
.big-title-s span:nth-child(3) {
  -moz-transition-delay: 0.3s;
  -o-transition-delay: 0.3s;
  -webkit-transition-delay: 0.3s;
  transition-delay: 0.3s;
}
.big-title-s span:nth-child(4) {
  -moz-transition-delay: 0.35s;
  -o-transition-delay: 0.35s;
  -webkit-transition-delay: 0.35s;
  transition-delay: 0.35s;
}
.big-title-b {
  overflow: hidden;
}
.big-title-b span {
  display: inline-block;
  opacity: 0;
  -moz-transform: translateY(30px);
  -ms-transform: translateY(30px);
  -webkit-transform: translateY(30px);
  transform: translateY(30px);
  -moz-transition: opacity 1s, -moz-transform 1s ease-in-out;
  -o-transition: opacity 1s, -o-transform 1s ease-in-out;
  -webkit-transition: opacity 1s, -webkit-transform 1s ease-in-out;
  transition: opacity 1s, transform 1s ease-in-out;
}
.big-title-b span:nth-child(1) {
  -moz-transition-delay: 1s;
  -o-transition-delay: 1s;
  -webkit-transition-delay: 1s;
  transition-delay: 1s;
}
.big-title-b span:nth-child(2) {
  -moz-transition-delay: 1.05s;
  -o-transition-delay: 1.05s;
  -webkit-transition-delay: 1.05s;
  transition-delay: 1.05s;
}
.big-title-b span:nth-child(3) {
  -moz-transition-delay: 1.1s;
  -o-transition-delay: 1.1s;
  -webkit-transition-delay: 1.1s;
  transition-delay: 1.1s;
}
.big-title-b span:nth-child(4) {
  -moz-transition-delay: 1.15s;
  -o-transition-delay: 1.15s;
  -webkit-transition-delay: 1.15s;
  transition-delay: 1.15s;
}
.big-title-b span:nth-child(5) {
  -moz-transition-delay: 1.2s;
  -o-transition-delay: 1.2s;
  -webkit-transition-delay: 1.2s;
  transition-delay: 1.2s;
}
.big-title-b span:nth-child(6) {
  -moz-transition-delay: 1.25s;
  -o-transition-delay: 1.25s;
  -webkit-transition-delay: 1.25s;
  transition-delay: 1.25s;
}
.big-title-b span:nth-child(7) {
  -moz-transition-delay: 1.3s;
  -o-transition-delay: 1.3s;
  -webkit-transition-delay: 1.3s;
  transition-delay: 1.3s;
}
.big-title-b span:nth-child(8) {
  -moz-transition-delay: 1.35s;
  -o-transition-delay: 1.35s;
  -webkit-transition-delay: 1.35s;
  transition-delay: 1.35s;
}
.big.show .big-title {
  -moz-transform: translateY(-80px);
  -ms-transform: translateY(-80px);
  -webkit-transform: translateY(-80px);
  transform: translateY(-80px);
  -moz-transition: -moz-transform 0.8s;
  -o-transition: -o-transform 0.8s;
  -webkit-transition: -webkit-transform 0.8s;
  transition: transform 0.8s;
}
.big.show .big-title:after {
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -webkit-transform: scale(1);
  transform: scale(1);
}
.big.open .big-title:after {
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -webkit-transform: scale(1);
  transform: scale(1);
}
.big.open .big-title-s span {
  opacity: 1;
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
}
.big.open .big-title-b span {
  opacity: 1;
  -moz-transform: translateY(0);
  -ms-transform: translateY(0);
  -webkit-transform: translateY(0);
  transform: translateY(0);
}

.slogan-content {
  opacity: 0;
  -moz-transform: translateY(50px);
  -ms-transform: translateY(50px);
  -webkit-transform: translateY(50px);
  transform: translateY(50px);
  -moz-transition: opacity 1.2s, -moz-transform 1s;
  -o-transition: opacity 1.2s, -o-transform 1s;
  -webkit-transition: opacity 1.2s, -webkit-transform 1s;
  transition: opacity 1.2s, transform 1s;
}
.slogan-content.show {
  opacity: 1;
  -moz-transform: translateY(0px);
  -ms-transform: translateY(0px);
  -webkit-transform: translateY(0px);
  transform: translateY(0px);
}

.charge-icon {
  opacity: 0;
  -moz-transform: scale(0);
  -ms-transform: scale(0);
  -webkit-transform: scale(0);
  transform: scale(0);
  -moz-transition: opacity 0.6s, -moz-transform 0.6s;
  -o-transition: opacity 0.6s, -o-transform 0.6s;
  -webkit-transition: opacity 0.6s, -webkit-transform 0.6s;
  transition: opacity 0.6s, transform 0.6s;
}
.show .charge-icon {
  opacity: 1;
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -webkit-transform: scale(1);
  transform: scale(1);
}
.charge-info {
  opacity: 0;
  -moz-transform: translateY(50px);
  -ms-transform: translateY(50px);
  -webkit-transform: translateY(50px);
  transform: translateY(50px);
  -moz-transition: opacity 1.2s, -moz-transform 1s;
  -o-transition: opacity 1.2s, -o-transform 1s;
  -webkit-transition: opacity 1.2s, -webkit-transform 1s;
  transition: opacity 1.2s, transform 1s;
}
.show .charge-info {
  opacity: 1;
  -moz-transform: translateY(0px);
  -ms-transform: translateY(0px);
  -webkit-transform: translateY(0px);
  transform: translateY(0px);
}

.service-icon {
  opacity: 0;
  -moz-transform: scale(0);
  -ms-transform: scale(0);
  -webkit-transform: scale(0);
  transform: scale(0);
  -moz-transition: opacity 1s, -moz-transform 1s;
  -o-transition: opacity 1s, -o-transform 1s;
  -webkit-transition: opacity 1s, -webkit-transform 1s;
  transition: opacity 1s, transform 1s;
}
.show .service-icon {
  opacity: 1;
  -moz-transform: scale(1);
  -ms-transform: scale(1);
  -webkit-transform: scale(1);
  transform: scale(1);
}
.service-content {
  opacity: 0;
  -moz-transform: translateY(50px);
  -ms-transform: translateY(50px);
  -webkit-transform: translateY(50px);
  transform: translateY(50px);
  -moz-transition: opacity 1.2s, -moz-transform 1s;
  -o-transition: opacity 1.2s, -o-transform 1s;
  -webkit-transition: opacity 1.2s, -webkit-transform 1s;
  transition: opacity 1.2s, transform 1s;
}
.show .service-content {
  opacity: 1;
  -moz-transform: translateY(0px);
  -ms-transform: translateY(0px);
  -webkit-transform: translateY(0px);
  transform: translateY(0px);
}

@media screen and (max-width: 1100px) {
  .big {
    background-color: #fff;
  }

  .big-title {
    left: 15%;
    color: #fff;
  }

  .scrolldown {
    background-color: #666;
  }

  .charge {
    background-color: #efefef;
  }
  .charge-content {
    display: block;
    padding: 50px 50px 0;
  }
  .charge-list {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: #ccc dotted 1px;
    display: -ms-flexbox;
    display: flex;
  }
  .charge-list:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
  }
  .charge-icon {
    width: 60px;
    height: 60px;
  }
  .charge-info {
    margin-left: 30px;
    width: calc(100% - 90px);
    text-align-last: left;
  }
  .charge-title {
    margin: 0 0 10px;
    color: #999;
  }

  .service-list {
    padding: 50px 50px 0;
  }
}
@media screen and (max-width: 860px) {
  .charge, .service {
    padding: 8vh 0;
  }
}
@media screen and (max-width: 640px) {
  .big-title-b {
    font-size: 26px;
  }

  .charge-content {
    padding: 50px 0 0;
  }
  .charge-icon {
    width: 40px;
    height: 40px;
  }
  .charge-info {
    margin-left: 15px;
    width: calc(100% - 55px);
  }

  .service-list {
    padding: 50px 0 0;
  }
  .service-icon {
    width: 40px;
    height: 40px;
  }
  .service-content {
    margin-left: 15px;
    width: calc(100% - 55px);
  }
}
@media screen and (max-width: 460px) {
  .big-title {
    left: 15%;
  }
  .big-title-b {
    font-size: 24px;
  }

  .charge-list {
    display: block;
  }
  .charge-info {
    width: auto;
    margin-left: 0;
  }
  .charge-icon {
    margin: 0 0 10px 0;
  }

  .service-item {
    display: block;
  }
  .service-content {
    width: auto;
    margin-left: 0;
  }
  .service-icon {
    margin: 0 0 10px 0;
  }
}