.sub-nav {
  margin-top: 46px;
}
.child2 ul li{
  list-style-type: disc;
}
.ctn1 {
  background-size: cover;
  background-image: url(/static/cn/img/sove/tu1.jpg);
  padding: 76px 0 80px;
}
.ctn1 .ctn-list {
  margin-top: 40px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}
.ctn1 .ctn-list li {
  width: 31.5%;
  padding: 2.08vw 2.7vw;
  background: white;
  border-radius: 4px;
  -webkit-box-shadow: 0 0 20px 0 #eaedf4;
          box-shadow: 0 0 20px 0 #eaedf4;
  position: relative;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  top: 0;
}
.ctn1 .ctn-list li:hover {
  top: -10px;
}
.ctn1 .ctn-list li:nth-child(n+4) {
  margin-top: 2.75%;
}
.ctn1 .ctn-list li:nth-child(3n-1) {
  margin-left: 2.75%;
  margin-right: 2.75%;
}
.ctn1 .ctn-list .icon {
  height: 50px;
}
.ctn1 .ctn-list .icon img{
    max-height: 100%;
}
.ctn1 .ctn-list .tit {
  font-weight: bold;
  margin-bottom: 12px;
  margin-top: 24px;
}
.ctn1 .ctn-list .des {
  color: #999999;
  text-align: justify;
}

.ctn2 {
  background-size: cover;
  background-image: url(/static/cn/img/sove/tu2.jpg);
  padding: 76px 0 80px;
}
.ctn2 .ctn2_sum{
    margin-top: 56px;
}
.ctn2 .ctn-list {
  margin-top: 40px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;

}
.ctn2 .ctn-list > div {
  width: 31.5%;
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
}
.ctn2 .ctn-list > div:nth-child(n+4) {
  margin-top: 2.75%;
}
.ctn2 .ctn-list > div:nth-child(3n-1) {
  margin-left: 2.75%;
  margin-right: 2.75%;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.ctn2 .ctn-list > div:nth-child(3n-1) .child2::before {
  left: 50%;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
}
.ctn2 .ctn-list > div:nth-child(3n) {
  -webkit-box-align: end;
      -ms-flex-align: end;
          align-items: end;
}
.ctn2 .ctn-list > div:nth-child(3n) .child2::before {
  right: calc(15.75% - 20px);
}
.ctn2 .ctn-list > div:nth-child(3n+1) .child2::before {
  left: calc(15.75% - 20px);
}
.ctn2 .ctn-list > div:first-child .child2 {
  display: block;
}
.ctn2 .ctn-list .child1 {
  height: 285px;
  padding: 8%;
  background: white;
  border-radius: 4px;
  -webkit-box-shadow: 0 0 20px 0 #eaedf4;
          box-shadow: 0 0 20px 0 #eaedf4;
  cursor: pointer;
}
.ctn2 .ctn-list .child1_act .tit{
    color: #cc2a33;
}
.ctn2 .ctn-list .child2 {
  display: none;
  width: 1440px;
  margin-top: 46px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.3);
  position: relative;
  padding: 2.86vw 3.125vw;
}
.ctn2 .ctn-list .child2 img{
    max-width: 100% !important;
    height: auto !important;
}
.ctn2 .ctn-list .child2::before {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-bottom: 20px solid rgba(255, 255, 255, 0.3);
  top: -20px;
  position: absolute;
}
.ctn2 .ctn-list .child2_one::before{
    display: none;
}
.ctn2 .ctn-list .tit {
  font-weight: bold;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.ctn2 .ctn-list .tit:hover {
  color: #cc2a33;
}
.ctn2 .ctn-list .des {
  color: #999999;
  text-align: justify;
  margin-top: 12px;
  height: 10.5em;
}

.ctn2 .ctn-list .des .mCSB_scrollTools {
  border-radius: 50px;
  background: #f6f6f6;
  padding: 10px 0;
  width: 2px;
}
.ctn2 .ctn-list .des .mCSB_scrollTools .mCSB_draggerContainer {
  border-radius: 50px;
  background: rgba(0,0,0,0.1);
  height: 100%;
  top: 5px;
}
.ctn2 .ctn-list .des .mCSB_scrollTools .mCSB_dragger .mCSB_dragger_bar {
  background-color: rgba(0,0,0,0.8);
}
.ctn2 .ctn-list .des .mCSB_scrollTools .mCSB_dragger.mCSB_dragger_onDrag .mCSB_dragger_bar, .ctn2 .ctn-list .des .mCSB_scrollTools .mCSB_dragger:active .mCSB_dragger_bar {
  background-color: rgba(0,0,0,0.8);
}
.ctn2 .ctn-list .des .mCSB_scrollTools .mCSB_draggerRail {
  display: none;
}
.ctn2 .ctn-list .des .mCSB_inside > .mCSB_container {
  margin-right: 30px;
}

.ctn2 .ctn-list .child2_tit {
  font-weight: bold;
  text-align: center;
}
.ctn2 .ctn-list .child2_des {
  color: #666666;
  margin-top: 18px;
}
.ctn2 .ctn-list .child2_img {
  margin-top: 2.34vw;
  text-align: center;
}
.ctn2 .ctn-list .child2_img img {
  max-width: 100%;
}
.ctn2 .ctn-list .child2_ul {
  margin-top: 2.34vw;
}
.ctn2 .ctn-list .child2_ul li {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: baseline;
      -ms-flex-align: baseline;
          align-items: baseline;
}
.ctn2 .ctn-list .child2_ul li:nth-child(n+2) {
  margin-top: 20px;
}
.ctn2 .ctn-list .ul_l {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  font-weight: bold;
  color: #c9151e;
  white-space: nowrap;
}
.ctn2 .ctn-list .ul_l img {
  margin-right: 16px;
}
.ctn2 .ctn-list .ul_r {
  color: #666666;
  text-align: justify;
}

.ctn4 {
  padding: 4vw 0 4.5vw;
  overflow: hidden;
  background: #f6f6f6;
}
.ctn4 .ctn-list {
  position: relative;
  margin-top: 2.5vw;
}
.ctn4 .ctn-list .swiper-slide {
  background: rgba(246, 234, 234, 0.5);
  background-size: 100% 100%;
  background-position: center;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}
.ctn4 .ctn-list .swiper-slide:before {
  content: "";
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background-size: 100% 100%;
  opacity: 0;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.ctn4 .ctn-list .swiper-slide a {
  display: block;
  padding: 2.5vw;
  position: relative;
  z-index: 2;
  color: #333;
}
.ctn4 .ctn-list .swiper-slide a h2 {
  font-weight: 700;
  color: #333;
  letter-spacing: 1px;
  position: relative;
  padding-bottom: 1.2vw;
}
.ctn4 .ctn-list .swiper-slide a h2:after {
  content: "";
  width: 40px;
  height: 3px;
  background: #c9151e;
  position: absolute;
  left: 0;
  bottom: 0;
}
.ctn4 .ctn-list .swiper-slide a .logo {
  margin-top: 3vw;
  height: 30px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding-left: 14px;
  position: relative;
  font-weight: bold;
}
.ctn4 .ctn-list .swiper-slide a .logo:before {
  content: "";
  width: 10px;
  height: 10px;
  background: #c9151e;
  position: absolute;
  left: 0;
  top: 50%;
  -webkit-transform: translateY(-50%);
      -ms-transform: translateY(-50%);
          transform: translateY(-50%);
}
.ctn4 .ctn-list .swiper-slide a .logo img {
  max-height: 100%;
}
.ctn4 .ctn-list .swiper-slide a p {
  letter-spacing: 1px;
  color: #815858;
  margin-top: 6px;
}
.ctn4 .ctn-list .swiper-slide:nth-child(3n+1) {
  background-image: url(/static/cn/img/p5.png);
}
.ctn4 .ctn-list .swiper-slide:nth-child(3n+1):before {
  background-image: url(/static/cn/img/p5.jpg);
}
.ctn4 .ctn-list .swiper-slide:nth-child(3n-1) {
  background-image: url(/static/cn/img/p3.png);
}
.ctn4 .ctn-list .swiper-slide:nth-child(3n-1):before {
  background-image: url(/static/cn/img/p3.jpg);
}
.ctn4 .ctn-list .swiper-slide:nth-child(3n) {
  background-image: url(/static/cn/img/p4.png);
}
.ctn4 .ctn-list .swiper-slide:nth-child(3n):before {
  background-image: url(/static/cn/img/p4.jpg);
}
.ctn4 .ctn-list .swiper-slide:hover:before {
  opacity: 1;
}
.ctn4 .ctn-list .n-prev {
  left: -42px;
}
.ctn4 .ctn-list .n-next {
  right: -42px;
}

.ctn3 {
  padding: 68px 0 82px;
}
.ctn3 .ctn-list {
  margin-top: 30px;
}
.ctn3 .ctn-list li {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding: 42px;
  background: #f8f9fb;
  border: 3px solid #eeeeee;
}
.ctn3 .ctn-list li:nth-child(n+2) {
  margin-top: 26px;
}
.ctn3 .ctn_logo {
  width: 160px;
  height: 224px;
  background: white;
  border-radius: 4px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.ctn3 .ctn_logo img{
    max-width: 90%;
    max-height: 90%;
}
.ctn3 .ctn_logo:hover {
  -webkit-box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.06);
          box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.06);
}
.ctn3 .ctn_info {
  width: 82%;
}
.ctn3 .tit {
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  font-weight: bold;
  color: #000000;
}
.ctn3 .tit:hover {
  color: #c9151e;
}
.ctn3 .line {
  height: 1px;
  background: #dcdcdc;
  margin-top: 20px;
  position: relative;
}
.ctn3 .line::before {
  position: absolute;
  width: 4.89vw;
  height: 3px;
  background: #c9151e;
  content: "";
  display: block;
  left: 0;
  bottom: 0;
}
.ctn3 .ctn_des {
  margin-top: 30px;
  line-height: 2;
  text-align: justify;
}
.ctn3 .tog {
  color: #777777;
  line-height: 1.875;
  display: none;
  text-align: left;
}
.ctn3 .ctn_btn {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: end;
  color: #c9151e;
}
.ctn3 .ctn_btn div{
    display: flex;
    align-items: center;
    cursor: pointer;
}
.ctn3 .ctn_btn svg {
  content: "";
  transition: all 0.5s;
  margin-left: 10px;
}
.ctn3 .ctn_btn span:nth-child(2) {
  display: none;
}
.ctn3 .ctn_btn span {
  cursor: pointer;
}
.ctn3 .btn_act svg {
  -webkit-transform: rotate(180deg);
      -ms-transform: rotate(180deg);
          transform: rotate(180deg);
}
.ctn3 .btn_act span:first-child {
  display: none;
}
.ctn3 .btn_act span:nth-child(2) {
  display: block;
}
.mores{
    text-align: center;
    margin-top: 30px;
}
.mores a{
    color: #c9151e;
}
@media screen and (max-width: 1600px) {
  .ctn1 .ctn-list .tit {
    margin-bottom: 8px;
    margin-top: 15px;
  }
  .ctn2 .ctn2_sum{
            margin-top: 2.9vw;
}
  .ctn2 .ctn-list .child1 {
    height: 250px;
  }
  .ctn2 .ctn-list .child2 {
    width: 80vw;
    margin-top: 30px;
  }
  .ctn3 .ctn_info {
    width: 80%;
  }
  .ctn3 .ctn-list li {
    padding: 30px;
  }
  .ctn1 {
    padding: 3.95% 0 4.16%;
  }
  .ctn2 {
    padding: 3.95% 0 4.16%;
  }
  .ctn3 {
    padding: 3.54% 0 4.27%;
  }
  .ctn4 .ctn-list .swiper-slide a .logo {
    height: 26px;
  }
  .sub-nav {
    margin-top: 35px;
  }
}
@media screen and (max-width: 1200px) {
  .ctn2 .ctn-list .child2 {
    width: 90vw;
  }
  .ctn3 .ctn_info {
    width: calc(100% - 200px);
  }
  .ctn2 .ctn-list .child1 {
    height: 250px;
  }
  .ctn4 .ctn-list .swiper-slide a .logo {
    height: 20px;
  }
  .ctn4 .ctn-list .swiper-slide a .logo:before {
    width: 8px;
    height: 8px;
  }
}
@media screen and (max-width: 768px) {
  .ctn1 {
    padding: 40px 0;
  }
  .ctn2 {
    padding: 40px 0;
  }
    .ctn2 .ctn2_sum{
            margin-top: 2.9vw;
}
  .ctn3 {
    padding: 40px 0;
  }
  .ctn2 .ctn-list > div {
    width: 100%;
    margin: 0 0 20px !important;
  }
  .ctn2 .ctn-list > div:last-child {
    margin-bottom: 0 !important;
  }
  .ctn2 .ctn-list .child1 {
    height: auto;
    padding: 20px;
  }
  .ctn2 .ctn-list .child2::before {
    left: 50% !important;
    right: inherit !important;
    -webkit-transform: translateX(-50%) !important;
        -ms-transform: translateX(-50%) !important;
            transform: translateX(-50%) !important;
  }
  .ctn1 .ctn-list {
    margin-top: 25px;
  }
  .ctn1 .ctn-list li {
    width: 100%;
    padding: 20px;
    margin: 0 0 20px !important;
  }
  .ctn1 .ctn-list li:last-child {
    margin-bottom: 0 !important;
  }
  .ctn2 .ctn-list {
    margin-top: 25px;
  }
  .ctn4 {
    padding: 40px 0;
  }
  .ctn3 .ctn-list {
    margin-top: 25px;
  }
  .ctn3 .ctn-list li {
    display: block;
    padding: 20px;
  }
  .ctn3 .ctn_logo {
    width: 100%;
    height: 140px;
  }
  .ctn3 .ctn_info {
    width: 100%;
    margin-top: 20px;
  }
  .ctn3 .ctn_info {
    text-align: center;
  }
  .ctn3 .line {
    margin-top: 15px;
  }
  .ctn3 .line::before {
    left: 50%;
    -webkit-transform: translateX(-50%);
        -ms-transform: translateX(-50%);
            transform: translateX(-50%);
    width: 50px;
  }
  .ctn3 .ctn_des {
    text-align: left;
    margin-top: 15px;
  }
  .ctn4 .ctn-list .n-prev {
    left: -10px;
  }
  .ctn4 .ctn-list .n-next {
    right: -10px;
  }
  .ctn4 .ctn-list {
    padding: 0 10px;
    margin-top: 25px;
  }
  .ctn4 .ctn-list .swiper-slide a {
    padding: 20px;
  }
  .ctn4 .ctn-list .swiper-slide a .logo {
    margin-top: 30px;
  }
  .ctn4 .ctn-list .swiper-slide a h2 {
    padding-bottom: 14px;
    letter-spacing: 0;
  }
  .ctn4 .ctn-list .swiper-slide a p {
    letter-spacing: 0;
    margin-top: 10px;
  }
  .ctn2 .ctn-list .child2 {
    padding: 20px;
  }
  .ctn2 .ctn-list .child2_ul li:nth-child(n+2) {
    margin-top: 10px;
  }
  .sub-nav {
    margin-top: 30px;
  }
  .ctn3 .ctn_des{
      font-size: 12px;
  }
}