.sec1{
  background-repeat: no-repeat;
  background-image: url(../images/about_sec1_bg.jpg);
  background-size: 100% auto;
  background-position: center bottom;
  color: #333;
  padding: 10.4% 0 8.7%;
}
.sec1 .section-title{
  margin-bottom: 1em;
}
.sec1 .video-box{
  position: relative;
  margin: 8.4375% 0;
}
.sec1 .flex-box{
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-direction: row;
}
.sec1 h3{
  font-size: 3.125em;
  font-weight: bold;
  line-height: 1.5;
  width: 43%;
}
.sec1 p{
  line-height: 2.125em;
  margin-bottom: 0.75em;
}
.sec1 p:last-child{
  margin-bottom: 0;
}
.sec1 .flex-box p{
  margin-top: 0.5em;
  width: 53%;
}


.sec2{
  padding: 7.3% 0 6.25%;
  background-repeat: no-repeat;
  background-image: url(../images/about_sec2_bg1.png),url(../images/about_sec2_bg2.jpg);
  background-size: 47.24% auto,auto 100%;
  background-position: 1.5em 4.25em,right bottom;
  background-color: #ffeeef;
  color: #333;
}
.sec2 h3{
  font-size: 3em;
  font-weight: bold;
  margin: 0.625em 0 1.25em;
}
.sec2 ul{
  padding-left: 2.25em;
}
.sec2 li{
  background-color: #fff;
  padding: 1.75em 4.5em;
  width: 30em;
  margin-bottom: 2.25em;
  position: relative;
}
.sec2 li:last-child{
  margin-bottom: 0;
}
.sec2 .icon-box{
  width: 3.5em;
  height: 3.5em;
  background-color: var(--theme-red);
  border-radius: 0.3125em;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  left: -1.75em;
  top: 50%;
  margin-top: -1.75em;
}
.sec2 .icon-box::before{
  content: "";
  width: 114.286%;
  height: 114.286%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  background-color: inherit;
  border-radius: 0.3125em;
  opacity: 0.2;
}
.sec2 .icon-box img{
  width: 46.4%;
}
.sec2 h5{
  font-size: 1.375em;
  font-weight: 600;
  margin-bottom: 0.81em;
}
.sec2 p{
  font-size: 1em;
}



.sec3{
  padding: 10.4% 0 5.2%;
  color: #333;
}
.sec3 h3{
  font-size: 3em;
  font-weight: bold;
  margin: 0.7em 0 1em;
}
.sec3 li{
  padding: 2.25em;
  border-bottom: 1px solid #e4e4e4;
  display: flex;
  align-items: flex-start;
  flex-direction: row;
  position: relative;
  overflow: hidden;
}
.sec3 li.slidedown{
  color: #fff;
  background-color: var(--theme-red);
}
.sec3 li .cross-box{
  width: 1.875em;
  height: 1.875em;
  border-radius: 0.1875em;
  background-color: var(--theme-red);
  position: absolute;
  right: 2.25em;
  top: 2.25em;
  transition: background-color 0.5s;
}
.sec3 li.slidedown .cross-box{
  background-color: rgba(255,255,255,0.7);
}
.sec3 li .cross-box::before,.sec3 li .cross-box::after{
  background-color: #fff;
  position: absolute;
  left: 50%;
  top: 50%;
  content: "";
  display: block;
}
.sec3 li.slidedown .cross-box::before,.sec3 li.slidedown .cross-box::after{
  background-color: var(--theme-red);
}
.sec3 li .cross-box::before{
  width: 0.8125em;
  height: 0.1875em;
  margin-left: -0.40625em;
  margin-top: -0.09375em;
}
.sec3 li .cross-box::after{
  width: 0.1875em;
  height: 0.8125em;
  margin-left: -0.09375em;
  margin-top: -0.40625em;
  transition: opacity 0.5s;
}
.sec3 li.slidedown .cross-box::after{
  opacity: 0;
}
.sec3 h5{
  font-size: 1.875em;
  font-weight: 500;
  color: var(--theme-red);
  transition: color 0.5s;
}
.sec3 li.slidedown h5{
  color: #fff;
}
.sec3 .slide-box{
  margin-left: 3em;
  max-height: 2.25em;
  overflow: hidden;
  transition: max-height 0.5s;
}
.sec3 li.slidedown .slide-box{
  max-height: 100vh;
}
.sec3 p{
  font-size: 1em;
  line-height: 1.875;
  margin-bottom: 1.2em;
  transition: padding 0.5s;
  width: 49em;
  max-width: 100%;
}
.sec3 li.slidedown p{
  padding-left: 0.8em;
}
.sec3 p:last-child{
  margin-bottom: 0;
}
.sec3 p::before{
  content: "·";
  vertical-align: middle;
  display: inline-block;
  width: 0;
  font-weight: 500;
  transition: width 0.5s,margin-left 0.5s;
  overflow: hidden;
  margin-top: -0.375em;
}
.sec3 li.slidedown p::before{
  margin-left: -0.8em;
  width: 0.8em;
}




.sec4{
  padding: 5.2% 0 10.4%;
}
.sec4 .section-title{
  margin-bottom: 1em;
}
.sec4 h3{
  font-size: 3.125em;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 1em;
}
.sec4 .tabcontent .content{
  border-bottom: 1px solid rgba(127,127,127,0.05);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-direction: row;
  flex-wrap: nowrap;
  padding: 1.09375em 0;
}
.sec4 .tabcontent .content:last-child{
  border-bottom: 0 none;
}
.sec4 .tabcontrol{
    font-size: 1.125em;
    color: #444;
    width: 11em;
    flex-shrink: 0;
}
.sec4 .tabcontent .content .marquee{
  position: relative;
}
.sec4 .tabcontent .content .marquee:before,.sec4 .tabcontent .content .marquee:after{
    content: "";
    position: absolute;
    top: 0;
    height: 100%;
    width: 20%;
    z-index: 1;
}
.sec4 .tabcontent .content .marquee:before{
    left: 0;
    background: linear-gradient(to right,  rgba(255,255,255,1),rgba(255,255,255,0));
}
.sec4 .tabcontent .content .marquee:after{
    right: 0;
    background: linear-gradient(to left,  rgba(255,255,255,1),rgba(255,255,255,0));
}
.sec4 .marqueeleft,.sec4 .marqueeright{
    overflow: hidden;
}
.sec4 .js-marquee{
    display: flex;
    align-items: stretch;
    justify-content: flex-start;
    flex-direction: row;
    flex-wrap: nowrap;
}
.sec4 .slide{
    margin-right: 6.25em;
}
.sec4 .slide img{
    height: 4.0625em;
}






.sec5{
  padding: 10.4% 0;
}
.sec5 .tab-control{
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex-direction: row;
  margin-bottom: 10.625em;
}
.sec5 .tab-control a{
  font-size: 1.125em;
  background-color: #f5f5f5;
  color: #333;
  display: block;
  width: 10.88em;
  height: 3.22em;
  line-height: 3.22;
  margin-right: 0.66em;
  border-radius: 0.278em;
  text-align: center;
  transition: color 0.5s,background-color 0.5s;
}
.sec5 .tab-control a:last-child{
  margin-right: 0;
}
.sec5 .tab-control a.active{
  color: #fff;
  background-color: var(--theme-red);
}
.sec5 .list-box{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-direction: row;
  flex-wrap: wrap;
  margin-bottom: 2em;
}
.sec5 .list-box::after{
  content: "";
  width: 28.90625%;
  display: block;
}
.sec5 .list-box li{
  width: 28.90625%;
  margin-bottom: 6.8%;
}
.sec5 .list-box .img-box{
  margin-bottom: 1.625em;  
}
.sec5 .list-box p{
  font-size: 1.125em;
  color: #333;
  text-align: center;
}

@media only screen and (min-width:1024px){ 
  .sec5 .tab-control a:hover{
    color: #fff;
    background-color: var(--theme-red);
  }
}

@media only screen and (max-width:1024px){
  .sec1{
    background-size: 200% auto;
    padding: 15% 0;
  }
  .sec1 .video-box{
    margin: 5% 0;
  }
  .sec1 .flex-box{
      display: block;
  }
  .sec1 h3{
    font-size: 1.5625em;
    width: 100%;
  }
  .sec1 p{
    font-size: 0.75em;
  }
  .sec1 .flex-box p{
    width: 100%;
  }


  .sec2{
    padding: 15% 0 60%;
    background-size: 90% auto,100% auto;
    background-position: 5% 2em,right bottom;
  }
  .sec2 h3{
    font-size: 1.5em;
  }
  .sec2 ul{
    font-size: 0.75em;
  }
  .sec2 li{
    padding: 1.75em 3.5em;
    width: 100%;
  }




  .sec3{
    padding: 15% 0 7.5%;
  }
  .sec3 h3{
    font-size: 1.5em;
    margin: 0.7em 0 1em;
  }
  .sec3 li{
    font-size: 0.75em;
    padding-left: 1em;
    padding-right: 3.5em;
  }
  .sec3 li .cross-box{
    right: 1em;
  }
  .sec3 .slide-box{
    margin-left: 1.5em;
  }


  .sec4{
    padding: 7.5% 0 15%;
  }
  .sec4 h3{
    font-size: 1.5625em;
    margin-bottom: 10%;
  }
  .sec4 .tabcontrol{
    font-size: 0.75em;
    width: 8em;
  }
  .sec4 .tabcontent .content{
    padding: 0.5em 0;
  }
  .sec4 .slide{
      margin-right: 2.5em;
  }
  .sec4 .slide img{
      height: 3em;
  }


  .sec5{
    padding: 15% 0;
  }
  .sec5 .tab-control{
    margin-bottom: 10%;
    font-size: 0.75em;
  }
  .sec5 .list-box{
    font-size: 0.75em;
    display: block;
    margin-bottom: 15%;
  }
  .sec5 .list-box::after{
    display: none;
  }
  .sec5 .list-box li{
    width: 100%;
    margin-bottom: 10%;
  }
  .sec5 .list-box .img-box{
    margin-bottom: 5%;  
  }
}