.title-tw {
  display: block;
  letter-spacing: 10px;
  padding: 0 60px;
}

.title-en {
  font-size: 0.5em;
  display: block;
  line-height: 1.5;
  margin: 10px 0 60px;
  padding: 0 60px;
  color: #666;
}
.title-en:before {
  content: "";
  width: 3px;
  height: 15px;
  background: #333;
  display: inline-block;
  vertical-align: middle;
  margin-right: 10px;
}

.text {
  font-size: 0.875rem;
  margin: 20px 0;
}
.text:last-child {
  margin-bottom: 0;
}

.text-en {
  font-size: 0.75rem;
  margin-top: 10px;
  color: #777;
}

.large-img {
  overflow: hidden;
  opacity: 0;
  -moz-transition: opacity 0.6s;
  -o-transition: opacity 0.6s;
  -webkit-transition: opacity 0.6s;
  transition: opacity 0.6s;
}
.large-img.show {
  opacity: 1;
}
.large-img img {
  width: 100%;
}

.feature-flex {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: justify;
  -webkit-justify-content: space-between;
  justify-content: space-between;
}
.feature-wrap {
  padding-top: 10%;
}
.feature-col {
  width: 50%;
  opacity: 0;
  -moz-transition: opacity 0.3s;
  -o-transition: opacity 0.3s;
  -webkit-transition: opacity 0.3s;
  transition: opacity 0.3s;
}
.feature-col.show {
  opacity: 1;
}
.feature-img1 {
  position: relative;
  background-size: cover;
  width: 75%;
  padding-bottom: 101.25%;
}
.feature-img2 {
  position: relative;
  float: right;
  margin: 30% 12.5% 15%;
  width: 50%;
  padding-bottom: 37.5%;
  background-size: cover;
}
.feature-content {
  background: #000;
  padding: 60px;
}
.feature-item {
  opacity: 0;
  -moz-transform: translateY(20px);
  -ms-transform: translateY(20px);
  -webkit-transform: translateY(20px);
  transform: translateY(20px);
  -moz-transition: opacity 0.3s, -moz-transform 0.3s;
  -o-transition: opacity 0.3s, -o-transform 0.3s;
  -webkit-transition: opacity 0.3s, -webkit-transform 0.3s;
  transition: opacity 0.3s, transform 0.3s;
}
.feature-item.show {
  opacity: 1;
  -moz-transform: translateY(0px);
  -ms-transform: translateY(0px);
  -webkit-transform: translateY(0px);
  transform: translateY(0px);
}
.feature-title {
  position: relative;
  padding-left: 15px;
}
.feature-title:before, .feature-title:after {
  content: "";
  width: 4px;
  height: 8px;
  background: #666;
  position: absolute;
  left: 0;
  -moz-transition: -moz-transform 0.3s;
  -o-transition: -o-transform 0.3s;
  -webkit-transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
}
.feature-title:before {
  bottom: 50%;
  -moz-transform-origin: right bottom;
  -ms-transform-origin: right bottom;
  -webkit-transform-origin: right bottom;
  transform-origin: right bottom;
}
.feature-title:after {
  top: 50%;
  -moz-transform-origin: right top;
  -ms-transform-origin: right top;
  -webkit-transform-origin: right top;
  transform-origin: right top;
}
.feature-text {
  margin-left: 15px;
}

.num {
  width: 20px;
  color: #FFF;
  margin-bottom: 10px;
}
.num:after {
  content: "";
  display: block;
  height: 3px;
  background: #666;
}

.diy-img1, .diy-img2 {
  position: relative;
  background-size: cover;
  width: 30%;
  padding-bottom: 40.5%;
}
.diy-img1 {
  margin-top: -30%;
  margin-bottom: 200px;
}
.diy-img2 {
  margin-top: -30%;
  margin-left: 70%;
}

.method {
  position: relative;
  background: #000;
  padding: 60px;
  margin-left: 40%;
}
.method-slogan {
  position: absolute;
  left: calc(-66.6666% + 60px);
  width: calc(66.6666% - 30px);
  font-size: 2em;
  color: #333;
  line-height: 1.5;
  opacity: 0;
  -moz-transition: opacity 0.3s;
  -o-transition: opacity 0.3s;
  -webkit-transition: opacity 0.3s;
  transition: opacity 0.3s;
}
.show .method-slogan {
  opacity: 1;
}
.method-slogan:after {
  content: "";
  height: 3px;
  display: block;
  background: #333;
}
.method-item {
  margin: 40px 0;
  opacity: 0;
  -moz-transform: translateY(20px);
  -ms-transform: translateY(20px);
  -webkit-transform: translateY(20px);
  transform: translateY(20px);
  -moz-transition: opacity 0.3s, -moz-transform 0.3s;
  -o-transition: opacity 0.3s, -o-transform 0.3s;
  -webkit-transition: opacity 0.3s, -webkit-transform 0.3s;
  transition: opacity 0.3s, transform 0.3s;
}
.method-item.show {
  opacity: 1;
  -moz-transform: translateY(0px);
  -ms-transform: translateY(0px);
  -webkit-transform: translateY(0px);
  transform: translateY(0px);
}
.method-item:last-child {
  margin-bottom: 0;
}
.method-title {
  color: #FFF;
  margin-bottom: 10px;
}

.attention {
  position: relative;
  background: #000;
  padding: 60px;
  margin-right: 40%;
}
.attention-slogan {
  position: absolute;
  right: calc(-66.6666% + 60px);
  width: calc(66.6666% - 30px);
  font-size: 2em;
  color: #333;
  line-height: 1.5;
  text-align: right;
  opacity: 0;
  -moz-transition: opacity 0.3s;
  -o-transition: opacity 0.3s;
  -webkit-transition: opacity 0.3s;
  transition: opacity 0.3s;
}
.show .attention-slogan {
  opacity: 1;
}
.attention-slogan:after {
  content: "";
  height: 3px;
  display: block;
  background: #333;
}
.attention-item {
  margin: 40px 0;
  opacity: 0;
  -moz-transform: translateY(20px);
  -ms-transform: translateY(20px);
  -webkit-transform: translateY(20px);
  transform: translateY(20px);
  -moz-transition: opacity 0.3s, -moz-transform 0.3s;
  -o-transition: opacity 0.3s, -o-transform 0.3s;
  -webkit-transition: opacity 0.3s, -webkit-transform 0.3s;
  transition: opacity 0.3s, transform 0.3s;
}
.attention-item.show {
  opacity: 1;
  -moz-transform: translateY(0px);
  -ms-transform: translateY(0px);
  -webkit-transform: translateY(0px);
  transform: translateY(0px);
}
.attention-item:last-child {
  margin-bottom: 0;
}

.img {
  overflow: hidden;
}
.img:after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: #111;
  z-index: 1;
  -moz-transition: width 0.3s 0s;
  -o-transition: width 0.3s 0s;
  -webkit-transition: width 0.3s;
  -webkit-transition-delay: 0s;
  transition: width 0.3s 0s;
}
.show .img:after {
  width: 0;
  -moz-transition-delay: 0.6s;
  -o-transition-delay: 0.6s;
  -webkit-transition-delay: 0.6s;
  transition-delay: 0.6s;
}
.img.show:after {
  width: 0;
  -moz-transition-delay: 0.6s;
  -o-transition-delay: 0.6s;
  -webkit-transition-delay: 0.6s;
  transition-delay: 0.6s;
}
.img:before {
  content: "";
  position: absolute;
  top: 0;
  width: 8px;
  height: 0;
  z-index: 2;
  background: #333;
}
.show .img:before {
  -moz-animation: showimage 1s;
  -webkit-animation: showimage 1s;
  animation: showimage 1s;
}
.img.show:before {
  -moz-animation: showimage 1s;
  -webkit-animation: showimage 1s;
  animation: showimage 1s;
}

@-moz-keyframes showimage {
  0% {
    width: 8px;
    height: 0;
    left: 0;
  }
  30% {
    width: 8px;
    height: 100%;
    left: 0;
  }
  59.9% {
    width: 100%;
    height: 100%;
    left: 0;
  }
  60% {
    width: 100%;
    height: 100%;
    right: 0;
    left: auto;
  }
  99.9% {
    width: 0;
    height: 100%;
    right: 0;
    left: auto;
  }
  100% {
    width: 8px;
    height: 0;
    left: 0;
  }
}
@-webkit-keyframes showimage {
  0% {
    width: 8px;
    height: 0;
    left: 0;
  }
  30% {
    width: 8px;
    height: 100%;
    left: 0;
  }
  59.9% {
    width: 100%;
    height: 100%;
    left: 0;
  }
  60% {
    width: 100%;
    height: 100%;
    right: 0;
    left: auto;
  }
  99.9% {
    width: 0;
    height: 100%;
    right: 0;
    left: auto;
  }
  100% {
    width: 8px;
    height: 0;
    left: 0;
  }
}
@keyframes showimage {
  0% {
    width: 8px;
    height: 0;
    left: 0;
  }
  30% {
    width: 8px;
    height: 100%;
    left: 0;
  }
  59.9% {
    width: 100%;
    height: 100%;
    left: 0;
  }
  60% {
    width: 100%;
    height: 100%;
    right: 0;
    left: auto;
  }
  99.9% {
    width: 0;
    height: 100%;
    right: 0;
    left: auto;
  }
  100% {
    width: 8px;
    height: 0;
    left: 0;
  }
}
@media screen and (max-width: 1000px) {
  .title-tw, .title-en {
    padding: 0;
  }

  .feature-content, .method, .attention {
    background: transparent;
    padding: 0;
  }

  .feature-flex {
    display: block;
  }
  .feature-col {
    width: auto;
  }
  .feature-wrap {
    padding-top: 50px;
  }
  .feature-img {
    display: flex;
    display: -ms-flexbox;
    -ms-flex-pack: justify;
    -webkit-justify-content: space-between;
    justify-content: space-between;
  }
  .feature-img1 {
    width: calc(35% - 5px);
    padding-bottom: 50%;
  }
  .feature-img2 {
    width: calc(65% - 5px);
    padding-bottom: 50%;
    margin: 0;
  }

  .diy-img1, .diy-img2 {
    display: none;
  }

  .method {
    padding-bottom: 50px;
    margin: 0 0 50px 0;
    border-bottom: #333 solid 1px;
  }
  .method-slogan {
    display: none;
  }

  .attention {
    margin: 0;
  }
  .attention-slogan {
    display: none;
  }
}