.sec1{
  padding: 7% 0 10.4%;
}
.sec1 .inner{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-direction: row;
  width: 91.875em;
}
.sec1 .left-part{
  position: sticky;
  top: 12vh;
  width: 15.37%;
}
.sec1 .left-part .search-box{
  border: 1px solid #f4f4f4;
  border-radius: 0.3125em;
  margin-bottom: 1.375em;
  padding: 0.3125em;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  flex-direction: row;
}
.sec1 .left-part .search-box input[type="text"]{
  font-size: 0.9375em;
  flex-grow: 1;
  padding: 0 0.67em;
  width: 11em;
}
.sec1 .left-part .search-box .search{
  width: 2.25em;
  height: 2.25em;
  display: block;
  background-color: var(--theme-red);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 0.3125em;
  position: relative;
}
.sec1 .left-part .search-box input[type="submit"]{
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}
.sec1 .left-part .search-box .search::before{
  content: "\f002";
}
.sec1 .left-part .cata-list a{
  color: #333;
  margin-bottom: 0.5em;
  background-color: #f5f5f5;
  border-radius: 0.3125em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-direction: row;
  padding: 0 1.875em;
  height: 3.625em;
  transition: color 0.3s,background-color 0.3s;
  overflow: hidden;
  position: relative;
  z-index: 1;
}
.sec1 .left-part .cata-list a:last-child{
  margin-bottom: 0;
}
.sec1 .left-part .cata-list a.active{
  color: #fff;
  background-color: var(--theme-red);
}
.sec1 .left-part .cata-list a span{
  font-size: 1.125em;
  vertical-align: middle;
}
.sec1 .left-part .fa-chevron-right::before{
  content: "\f054";
}
.sec1 .left-part .icon{
  font-family: 'caseicon';
}
.sec1 .left-part .icon::before{
  font-size: 1.5em;
  margin-right: 0.5em;
  color: var(--theme-red);
  transition: color 0.5s;
  vertical-align: middle;
}
.sec1 .left-part .cata-list a.active .icon::before{
  color: #fff;
}
.sec1 .left-part .icon.case_icon_cata2::before{
  -webkit-text-stroke-color: #f5f5f5;
}
.sec1 .left-part .cata-list a.active .icon.case_icon_cata2::before{
  -webkit-text-stroke-color: var(--theme-red);
}
.sec1 .right-part{
  width: 80.6%;
}
.sec1 .right-part .list-box{
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  flex-direction: row;
  flex-wrap: wrap;
}
.sec1 .right-part .list-box::after{
  width: 31.48%;
  content: "";
  display: block;
}
.sec1 .right-part .list-box a{
  color: #333;
  width: 31.48%;
  margin-bottom: 3em;
}
.sec1 .right-part .list-box .img-box{
  overflow: hidden;
}
.sec1 .right-part .list-box .img-box img{
  transition: transform 0.5s;
}
.sec1 .right-part .list-box .text-box{
  border: 1px solid #eee;
  border-top: 0 none;
  position: relative;
  padding: 3em 2.5em;
}
.sec1 .right-part .list-box .icon-box{
  position: absolute;
  right: 11.8%;
  top: -2.28125em;
  width: 4.5625em;
  height: 4.5625em;
  border-radius: 0.3125em;
  background-color: #fff;
}
.sec1 .right-part .list-box .icon{
  font-family: 'caseicon';
  border-radius: 0.3125em;
  background-color: var(--theme-red);
  width: 85%;
  height: 85%;
  margin-left: 7.5%;
  margin-top: 7.5%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.sec1 .right-part .list-box .icon::before{
  font-size: 2.25em;
}
.sec1 .right-part .list-box .icon.case_icon_cata2::before{
  -webkit-text-stroke-color: var(--theme-red);
}
.sec1 .right-part .list-box .tag-box{
  margin-bottom: 1.375em;
  padding-left: 2em;
  line-height: 1.5;
}
.sec1 .right-part .list-box .tag-box img{
  width: 1em;
  vertical-align: middle;
  margin-right: 1em;
  margin-left: -2em;
}
.sec1 .right-part .list-box .tag-box span{
  display: inline-block;
  vertical-align: middle;
  font-size: 0.875em;
}
.sec1 .right-part .list-box .tag-box span::after{
  content: "/";
  margin: 0 0.5em;
}
.sec1 .right-part .list-box .tag-box span:last-child::after{
  display: none;
}
.sec1 .right-part .list-box h5{
  font-size: 1.25em;
  font-weight: bold;
  max-height: 1em;
  margin-bottom: 0.75em;
  transition: color 0.5s;
}
.sec1 .right-part .list-box p{
  line-height: 1.75;
  max-height: 3.5em;
  margin-bottom: 1.5em;
}
.sec1 .right-part .list-box .more{
  font-size: 0.9375em;
  transition: color 0.5s;
}
.sec1 .right-part .list-box .more::after{
  font-family: "Font Awesome 5 Pro";
  content: "\f176";
  display: inline-block;
  vertical-align: baseline;
  transform: rotate(90deg);
  margin-left: 0.8em;
}
@media only screen and (min-width:1024px){
  .sec1 .left-part .cata-list a:hover{
    color: #fff;
    background-color: var(--theme-red);
  }
  .sec1 .left-part .cata-list a:hover .icon::before{
    color: #fff;
  }
  .sec1 .left-part .cata-list a:hover .icon.case_icon_cata2::before{
    -webkit-text-stroke-color: var(--theme-red);
  }
  .sec1 .right-part .list-box a:hover .img-box img{
    transform: scale(1.1);
  }
  .sec1 .right-part .list-box a:hover h5{
    color: var(--theme-red);
  }
  .sec1 .right-part .list-box a:hover .more{
    color: var(--theme-red);
  }
}

@media only screen and (max-width:1024px){
  .sec1{
    padding: 15% 0 10%;
    font-size: 0.75em;
  }
  .sec1 .inner{
    display: block;
  }
  .sec1 .left-part{
    position: static;
    width: 100%;
    margin-bottom: 10%;
  }
  .sec1 .left-part .cata-list .scroll-box{
    overflow-x: auto;
    overflow-y: hidden;
    margin-left: -4vw;
    margin-right: -4vw;
    padding: 0 4vw;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-direction: row;
    flex-wrap: nowrap;
  }
  .sec1 .left-part .cata-list a{
    flex-shrink: 0;
    margin-right: 1em;
    margin-bottom: 0;
    display: block;
    padding: 1em 1.5em;
    height: auto;
  }
  .sec1 .left-part .cata-list a:last-child{
    margin-right: 0;
  }
  .sec1 .left-part .fas{
    display: none;
  }
  .sec1 .right-part{
    width: 100%;
  }
  .sec1 .right-part .list-box::after{
    display: none;
  }
  .sec1 .right-part .list-box a{
    width: 100%;
    margin-bottom: 10%;
  }
  .sec1 .right-part .list-box .text-box{
    padding: 25% 10% 15%;
  }
}