.main {
  padding: 0;
}

.section {
  padding: 0;
  position: relative;
}

.project-top {
  position: fixed;
  width: 100%;
  padding: 15px 0;
  bottom: 0;
  background: #FFF;
  z-index: 5;
}
.project-name {
  text-align: center;
  color: #000;
  letter-spacing: 0.2rem;
}
.project-link {
  position: fixed;
  top: 13px;
  right: 13px;
  z-index: 10;
}
.project-back {
  padding: 3px 9px;
  border-radius: 50%;
  background: #f6f6f6;
  font-size: 16px;
  color: #999;
  -moz-transition: color 0.6s ease;
  -o-transition: color 0.6s ease;
  -webkit-transition: color 0.6s ease;
  transition: color 0.6s ease;
}
.project-back:hover {
  color: #666;
}
.project-back .fas {
  font-weight: 300;
}
.project-scroll {
  position: fixed;
  bottom: 15px;
  right: 15px;
  width: 35px;
  height: 65px;
  border-radius: 100px;
  background: #f6f6f6;
  cursor: pointer;
  z-index: 10;
}
.project-scroll:hover .project-arrow:before {
  background: #666;
}
.project-scroll:hover .project-arrow:after {
  border-bottom: 1px solid #666;
  border-right: 1px solid #666;
}
.project-arrow {
  position: relative;
}
.project-arrow:before {
  content: "";
  width: 1px;
  height: 30px;
  background: #999;
  position: absolute;
  top: 17px;
  left: 50%;
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  -moz-transition: background 0.6s;
  -o-transition: background 0.6s;
  -webkit-transition: background 0.6s;
  transition: background 0.6s;
}
.project-arrow:after {
  content: "";
  width: 6px;
  height: 6px;
  border-bottom: 1px solid #999;
  border-right: 1px solid #999;
  position: absolute;
  top: 17px;
  left: 50%;
  -moz-transform: translateX(-50%) rotate(225deg);
  -ms-transform: translateX(-50%) rotate(225deg);
  -webkit-transform: translateX(-50%) rotate(225deg);
  transform: translateX(-50%) rotate(225deg);
  -moz-transition: border-bottom 0.6s, border-right 0.6s;
  -o-transition: border-bottom 0.6s, border-right 0.6s;
  -webkit-transition: border-bottom 0.6s, border-right 0.6s;
  transition: border-bottom 0.6s, border-right 0.6s;
}
.project-img {
  position: relative;
  max-width: 1350px;
  margin: 0 auto 54px;
}
.project-img img {
  width: 100%;
  margin-bottom: 20px;
}
.project-img-wrap {
  display: -ms-flexbox;
  display: flex;
  -webkit-justify-content: space-between;
  justify-content: space-between;
}
.project-img-wrap img {
  width: 50%;
}
.project-img1 {
  margin: 0 auto -20px;
}
.project-inner {
  padding: 50px 3.5rem;
  max-width: 1350px;
  margin: 0 auto;
}
.project-list {
  padding: 40px 0;
  border-bottom: 1px dashed #ddd;
}
.project-list:nth-child(1) {
  border-top: 1px dashed #ddd;
}
.project-title {
  color: #000;
  padding-bottom: 30px;
  opacity: 0;
  -moz-transition: opacity 0.8s ease;
  -o-transition: opacity 0.8s ease;
  -webkit-transition: opacity 0.8s ease;
  transition: opacity 0.8s ease;
}
.project-title.show {
  opacity: 1;
}
.project-title .en {
  font-family: "Oswald", Arial, Helvetica;
}
.project-title .tw {
  font-size: 0.75rem;
}
.project-item {
  font-size: 0.875rem;
  padding-bottom: 3px;
}
.project-subtitle {
  color: #999;
  letter-spacing: 1rem;
}

@media screen and (max-width: 1450px) {
  .project-img {
    padding: 0 60px;
  }
}
@media screen and (max-width: 1100px) {
  .project-img {
    margin: 0 auto 50px;
    max-width: unset;
  }
  .project-img1 {
    margin: 0 auto -20px;
  }
  .project-scroll {
    bottom: 65px;
  }
}
@media screen and (max-width: 640px) {
  .project-name {
    font-size: 0.8rem;
  }
  .project-scroll {
    right: 15px;
  }
  .project-img {
    padding: unset;
  }
  .project-inner {
    padding: 30px 1.5rem;
  }
  .project-list {
    padding: 30px 0;
  }
  .project-title {
    padding-bottom: 25px;
  }
}
@media screen and (max-width: 420px) {
  .project-name {
    font-size: 0.75rem;
  }
}