.ctn1 {
  position: relative;
}
.ctn1 .content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.ctn1 .content .left {
  width: 20.8%;
  position: sticky;
  left: 0;
  top: 100px;
}
.ctn1 .content .left .top ul li {
  position: relative;
  border-radius: 0px 10px 10px 0px;
  background: #fff;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .content .left .top ul li:before {
  content: '';
  width: 2px;
  height: 0;
  background: #000;
  position: absolute;
  left: 0;
  top: 0;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .content .left .top ul li a {
  display: flex;
  align-items: center;
  padding-left: 26px;
  height: 64px;
}
.ctn1 .content .left .top ul li a .icons {
  width: 12px;
  display: flex;
  align-items: center;
  margin-right: 14px;
}
.ctn1 .content .left .top ul li a .icons img {
  width: 100%;
}
.ctn1 .content .left .top ul li:hover {
  background: #F8F8F8;
}
.ctn1 .content .left .top ul li.active {
  background: #F8F8F8;
}
.ctn1 .content .left .top ul li.active:before {
  height: 100%;
}
.ctn1 .content .left .bottom {
  position: relative;
  padding: 24px;
  border-radius: 10px;
  overflow: hidden;
}
.ctn1 .content .left .bottom .center {
  position: relative;
  z-index: 2;
  color: #fff;
}
.ctn1 .content .left .bottom .center p {
  margin: 16px 0;
}
.ctn1 .content .left .bottom .bg {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  left: 0;
  top: 0;
  z-index: 1;
}
.ctn1 .content .left .bottom .bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ctn1 .content .right {
  width: 74.9%;
}
.ctn1 .content .right .top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
}
.ctn1 .content .right .ctn-list ul {
  border-top: 1px solid #dadada;
}
.ctn1 .content .right .ctn-list ul li {
  border-bottom: 1px solid #dadada;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px 0;
}
.ctn1 .content .right .ctn-list ul li .text .title {
  display: flex;
}
.ctn1 .content .right .ctn-list ul li .text .title h3 {
  width: 35px;
  height: 19px;
  flex-shrink: 0;
  margin-right: 12px;
  background: #E0E2EB;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #717784;
  font-size: 10px;
  position: relative;
  top: 6px;
}
.ctn1 .content .right .ctn-list ul li .text .title h2 a {
  color: #333;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .content .right .ctn-list ul li .text .title h2 a:hover {
  color: var(--color);
}
.ctn1 .content .right .ctn-list ul li .text .infos {
  display: flex;
  align-items: center;
  margin-top: 14px;
}
.ctn1 .content .right .ctn-list ul li .text .infos h4 {
  color: #999;
  margin-right: 20px;
}
.ctn1 .content .right .ctn-list ul li .text .infos p {
  color: #999;
}
.ctn1 .content .right .ctn-list ul li .s-mores {
  flex-shrink: 0;
  margin-left: 20px;
}
.ctn1 .content .right .ctn-list ul li .s-mores a:hover {
  background: #000 !important;
  color: #fff !important;
  border: 1px solid #000 !important;
}
.ctn2 {
  position: relative;
  overflow: hidden;
}
.ctn2 .tu {
  position: relative;
  overflow: hidden;
}
.ctn2 .tu:before {
  content: '';
  display: block;
  padding-top: calc(583 / 1920 * 100%);
}
.ctn2 .tu img {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
  left: 0;
  top: 0;
}
.ctn2 .text {
  position: absolute;
  width: 100%;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  color: #fff;
  text-align: center;
}
.ctn2 .text p {
  margin: 20px 0 30px;
}
.ctn2 .text .s-mores {
  display: flex;
  justify-content: center;
}
@media screen and (max-width: 1680px) {
  .ctn1 .content .left .top ul li a {
    padding-left: 22px;
    height: 54px;
  }
  .ctn1 .content .left .top ul li a .icons {
    margin-right: 12px;
  }
  .ctn1 .content .left .bottom {
    padding: 20px;
  }
  .ctn1 .content .left .bottom .center p {
    margin: 14px 0;
  }
  .ctn1 .content .right .ctn-list ul li {
    padding: 24px 0;
  }
  .ctn1 .content .right .ctn-list ul li .text .title h3 {
    top: 4px;
  }
  .ctn2 .text p {
    margin: 14px 0 20px;
  }
}
@media screen and (max-width: 1440px) {
  .ctn1 .content .right .ctn-list ul li {
    padding: 20px 0;
  }
}
@media screen and (max-width: 768px) {
  .ctn1 {
    overflow: hidden;
  }
  .ctn1 .content {
    display: block;
  }
  .ctn1 .content .left {
    position: relative;
    width: 100%;
    top: 0;
  }
  .ctn1 .content .right {
    width: 100%;
    margin-top: 30px;
  }
  .ctn1 .content .right .top {
    padding-bottom: 14px;
  }
  .ctn1 .content .right .ctn-list ul li {
    display: block;
  }
  .ctn1 .content .right .ctn-list ul li .text {
    width: 100%;
  }
  .ctn1 .content .right .ctn-list ul li .text .infos {
    margin-top: 6px;
  }
  .ctn1 .content .right .ctn-list ul li .s-mores {
    margin-left: 0;
    margin-top: 20px;
  }
  .ctn2 {
    padding-bottom: 9vw;
  }
  .ctn2 .tu {
    width: 90%;
    margin: 0 auto;
    border-radius: 10px;
  }
  .ctn2 .text {
    width: 90%;
    margin: 20px auto 0;
    position: relative;
    color: #333;
    top: 0;
    transform: translateY(0);
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    text-align: left;
  }
  .ctn2 .text .s-mores {
    display: block;
  }
  .ctn2 .text .s-mores a {
    border: 1px solid #333;
  }
}