.ctn1 {
  padding: 160px 0;
  background: url(../img/product/bg1.jpg) no-repeat;
  background-size: cover;
  overflow: hidden;
}
.ctn1 .ctn-list ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.ctn1 .ctn-list ul li {
  flex: 1;
  background: #fff;
  height: 320px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .ctn-list ul li .box {
  width: 70%;
}
.ctn1 .ctn-list ul li .box h2 {
  text-align: center;
  font-weight: 700;
  color: #5b626c;
}
.ctn1 .ctn-list ul li .box p {
  color: #414b5b;
  opacity: 0.9;
  -webkit-line-clamp: 3;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  line-height: 1.5;
  height: 4.5em;
  line-height: 1.8;
  height: 5.4em;
  margin-top: 10px;
}
.ctn1 .ctn-list ul li .mask {
  position: absolute;
  width: 100%;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  background: #fff;
  opacity: 0;
}
.ctn1 .ctn-list ul li .mask h2 {
  height: 154px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: url(../img/product/bg2.jpg) no-repeat;
  background-size: cover;
  color: #fff;
  font-weight: 700;
}
.ctn1 .ctn-list ul li .mask p {
  color: #414b5b;
  opacity: 0.8;
  padding: 30px 30px 60px;
  line-height: 1.8;
}
.ctn1 .ctn-list ul li:nth-child(2) {
  height: 360px;
}
.ctn1 .ctn-list ul li:nth-child(3) {
  height: 400px;
}
.ctn1 .ctn-list ul li:nth-child(4) {
  height: 400px;
}
.ctn1 .ctn-list ul li:nth-child(5) {
  height: 360px;
}
.ctn1 .ctn-list ul li:nth-child(6) {
  height: 320px;
}
.ctn1 .ctn-list ul li:not(:nth-child(6n)) {
  margin-right: 20px;
}
.ctn1 .ctn-list ul li:hover {
  flex: 1.5;
  background: none;
}
.ctn1 .ctn-list ul li:hover .box {
  opacity: 0;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .ctn-list ul li:hover .mask {
  opacity: 1;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn2 {
  padding: 120px 0;
  overflow: hidden;
}
.ctn2 .ctn-wrapper {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
.ctn2 .ctn-wrapper .swiper-slide {
  text-align: center;
  padding-bottom: 24px;
  cursor: pointer;
  position: relative;
}
.ctn2 .ctn-wrapper .swiper-slide:after {
  content: '';
  width: 0;
  height: 2px;
  background: var(--blue);
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn2 .ctn-wrapper .swiper-slide .icons {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ctn2 .ctn-wrapper .swiper-slide .icons img {
  max-height: 100%;
}
.ctn2 .ctn-wrapper .swiper-slide h2 {
  margin-top: 14px;
  font-weight: bold;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn2 .ctn-wrapper .swiper-slide:hover .icons img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
}
.ctn2 .ctn-wrapper .swiper-slide:hover h2 {
  color: var(--blue);
}
.ctn2 .ctn-wrapper .swiper-slide.active:after {
  width: 58%;
}
.ctn2 .ctn-wrapper .swiper-slide.active .icons img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
}
.ctn2 .ctn-wrapper .swiper-slide.active h2 {
  color: var(--blue);
}
.ctn2 .ctn-list {
  margin-top: 100px;
}
.ctn2 .ctn-list ul li {
  margin-top: 70px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  background: #f7f9fb;
}
.ctn2 .ctn-list ul li.hide{
    display: none;
}
.ctn2 .ctn-list ul li .tu {
  width: 50%;
  overflow: hidden;
   cursor: pointer;
}
.ctn2 .ctn-list ul li .tu img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ctn2 .ctn-list ul li .tu:hover img {
  transform: scale(1.05);
  -webkit-transform: scale(1.05);
  -moz-transform: scale(1.05);
  -ms-transform: scale(1.05);
}
.ctn2 .ctn-list ul li .text {
  width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px;
}
.ctn2 .ctn-list ul li .text h2 {
  font-weight: 700;
}
.ctn2 .ctn-list ul li .text p {
  line-height: 2;
  margin-top: 10px;
}
.ctn2 .ctn-list ul li .text dl {
  display: flex;
  flex-wrap: wrap;
}
.ctn2 .ctn-list ul li .text dl dd {
  margin-top: 20px;
  margin-right: 10px;
  padding: 6px 18px;
  bordeR: 1px solid var(--blue);
  background: #eff4f8;
  font-weight: 700;
  color: var(--blue);
}
@media screen and (max-width: 1600px) {
  .ctn1 {
    padding: 8vw 0;
  }
  .ctn1 .ctn-list ul li {
    height: 300px;
  }
  .ctn1 .ctn-list ul li .mask h2 {
    height: 130px;
  }
  .ctn1 .ctn-list ul li .mask p {
    padding: 1.5vw 1.5vw 3vw;
  }
  .ctn1 .ctn-list ul li:nth-child(2) {
    height: 340px;
  }
  .ctn1 .ctn-list ul li:nth-child(3) {
    height: 380px;
  }
  .ctn1 .ctn-list ul li:nth-child(4) {
    height: 380px;
  }
  .ctn1 .ctn-list ul li:nth-child(5) {
    height: 340px;
  }
  .ctn1 .ctn-list ul li:nth-child(6) {
    height: 300px;
  }
  .ctn2 {
    padding: 6vw 0;
  }
  .ctn2 .ctn-list {
    margin-top: 5vw;
  }
  .ctn2 .ctn-list ul li {
    margin-top: 3.5vw;
  }
  .ctn2 .ctn-list ul li .text {
    padding: 4vw;
  }
}
@media screen and (max-width: 1440px) {
  .ctn2 .ctn-wrapper .swiper-slide .icons {
    height: 52px;
  }
}
@media screen and (max-width: 1200px) {
  .ctn1 .ctn-list ul li .mask h2 {
    height: 100px;
  }
  .ctn2 .ctn-list ul li .text dl dd {
    margin-top: 10px;
  }
}
@media screen and (max-width: 768px) {
  .ctn1 {
    padding: 26px 0 40px;
  }
  .ctn1 .ctn-list ul {
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
  }
  .ctn1 .ctn-list ul li {
    width: 48.5%;
    flex: none!important;
    margin-right: 0!important;
    height: auto!important;
    margin-top: 14px;
    background: #fff;
  }
  .ctn1 .ctn-list ul li .box {
    display: none;
  }
  .ctn1 .ctn-list ul li .mask {
    position: relative;
    top: 0;
    transform: translateY(0%);
    -webkit-transform: translateY(0%);
    -moz-transform: translateY(0%);
    -ms-transform: translateY(0%);
    opacity: 1;
    padding-bottom: 14px;
  }
  .ctn1 .ctn-list ul li .mask h2 {
    height: 60px;
  }
  .ctn1 .ctn-list ul li .mask p {
    padding: 14px 14px 0;
    height: 160px;
    overflow-y: scroll;
  }
  .ctn1 .ctn-list ul li:not(:nth-child(even)) {
    margin-right: 3%;
  }
  .ctn2 {
    padding: 40px 0;
  }
  .ctn2 .ctn-wrapper .swiper-slide {
    padding-bottom: 14px;
  }
  .ctn2 .ctn-wrapper .swiper-slide .icons {
    height: 38px;
  }
  .ctn2 .ctn-wrapper .swiper-slide h2 {
    margin-top: 10px;
    font-size: 14px;
  }
  .ctn2 .ctn-list ul li {
    margin-top: 20px;
  }
  .ctn2 .ctn-list ul li .tu {
    width: 100%;
  }
  .ctn2 .ctn-list ul li .text {
    width: 100%;
    padding: 20px;
  }
  .ctn2 .ctn-list ul li .text p {
    line-height: 1.6;
  }
  .ctn2 .ctn-list ul li .text dl dd {
    padding: 4px 10px;
  }
}