.section2 .arrow-down span{
  color: #9c9c9c;
}
.banner {
  width: 100%;
  height: 100%;
  min-height: 100vh;
  background-position:center;
  background-size: cover;
  background-repeat: no-repeat;
  position: relative;
}
.banner .ctx a{
   cursor: pointer;
   color: #ffffff;
}
.m-slide{
  position: relative; 
  width:100%; 
  height: 100vh; 
  background: #fff;
  width: 100%;
  overflow: hidden;
  display:flex;
}
.m-slide .img { 
  float: left; 
  position: relative; 
  width: 45%;
  height: 100vh;
}
.m-slide .img li{
  display: none; 
  position: relative; 
  left: 0; 
  top: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.m-slide .img li, .m-slide .img a, .m-slide .img img { 
  display: block; 
  width:  100%; 
  height: 100vh;
}

.m-slide .img li .c-text{
  position: absolute;
  z-index: 99;
  top: 55%;
  /* padding-top: 6.8rem; */
  padding-left: 1.1rem;
  padding-right: 0.6rem;
}
.m-slide .img li .c-tit{
  width: 100%;
  overflow: hidden;
}
.m-slide .img li .c-tit .name{
  font-size: 50px;
  color: #ffffff;
  font-weight: 600;
}
.m-slide .img li .c-tit .btitle{
  font-size: 24px;
  color: #ffffff;
  margin-left: 0.1rem;
}
.m-slide .img li .c-txt{
  font-size: 18px;
  color: #ffffff;
  margin-top: 0.1rem;
  margin-bottom: 0.4rem;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}
.m-slide .img li .c-more a{
  font-size: 18px;
  color: #ffffff;
  opacity: 0.5;
}

.m-slide .c-right{
  flex: 1;
  float: right;
  width: 55%;
  height: 100vh;
  box-sizing: border-box;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  padding: 0 0.9rem;
}
.m-slide .mechanism {
  margin-bottom: 0.5rem;
  width: 100%;
  overflow: hidden;
  margin-top: 1.5rem;
}
.m-slide .mechanism h4{
  font-size: 24px;
  color: #323232;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.m-slide .mechanism-s{
  width: 5.5rem;
  padding-bottom: 0.2rem;
  border-bottom: 2px solid #323232;
  height: 20px;
  line-height: 20px;
}
.m-slide .mechanism-s .region{
  float: left;
  width: 1.3rem;
  border: none;
  font-size: 16px;
  color: #323232;
  padding-right: 0.2rem;
  height: 20px;
  line-height: 20px;
  appearance:none;
  -moz-appearance:none;
  -webkit-appearance:none;
  background: url(../img/cooperation001.png) no-repeat right center;
}
.m-slide .mechanism-s select::-ms-expand { display: none; }
.m-slide .mechanism-s .region option{
  font-size: 16px;
  color: #323232;
  background: none;
}
.m-slide .mechanism-s .search-form{
  float: left;
  width: 3.4rem;
  height: 20px;
  line-height: 20px;
  padding-left: 0.3rem;
  margin-left: 0.3rem;
  border-left: 1px solid #caccca;
}
.m-slide .mechanism-s .search-form .left{
  float: left;
  width: 70%;
  background: none;
  font-size: 16px;
  color: #323232;
}
.m-slide .mechanism-s .search-form .right{
  float: left;
  width: 30%;
  background: url(../img/mechanism_02.png) no-repeat right center;
  background-size: auto;
  height: 20px;
}
.m-slide .mechanism-tab{
  height: 65vh;
  overflow-y: scroll;
  scrollbar-width: none; 
  -ms-overflow-style: none;
}
.m-slide .mechanism-tab::-webkit-scrollbar {
  display: none;
  }

.m-slide .tab{ 
  width: 100%;
  overflow: hidden;
  padding-top: 0.3rem;
}
.m-slide .tab li{
  width: 31.33%;
  float: left;
  margin: 0 1% 0.3rem;
  background-color: #ffffff;
  border-radius: 0.3rem;
  box-shadow: 0px 2px 20px #ebebeb;
  text-align: center;
  transition: transform 0.5s;
  height: 4rem;
  overflow: hidden;
  cursor: pointer;
}
.m-slide .tab li.on .name{
  color: #fdbb4e;
}
.m-slide .tab li:hover {
  transform: translateY(-15px);
}
.m-slide .tab li img{
  width: 100%;
  padding-bottom: 0.4rem;
  padding-top: 0.5rem;
  max-height: 1.16rem;
}
.m-slide .tab li .name{
  font-size: 24px;
  color: #323232;
  font-weight: 600;
  padding: 0 0.3rem;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
   overflow: hidden;
}
.m-slide .tab li .text{
  font-size: 16px;
  color: #323232;
  padding: 0 0.3rem;
  margin-top: 0.2rem;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
   overflow: hidden;
}
.m-slide .mechanism-tab::-webkit-scrollbar {
  /*滚动条整体样式*/
  width : 10px;  /*高宽分别对应横竖滚动条的尺寸*/
  height: 1px;
  }
.m-slide .mechanism-tab::-webkit-scrollbar-thumb {
  /*滚动条里面小方块*/
  border-radius: 10px;
  box-shadow   : inset 0 0 5px rgba(0, 0, 0, 0.2);
  background   : #fdbb4e;
  }
.m-slide .mechanism-tab::-webkit-scrollbar-track {
  /*滚动条里面轨道*/
  box-shadow   : inset 0 0 5px rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  background   : #eeeeee;
  }
.m-slide .tab li a{
  display: none;
}
.m-slide .tab li.on a{
  display: block;
  margin-top: 0.2rem;
  font-size: 16px; 
  color: #fdbb4e;
}

@media only screen and (max-width: 1440px) {
  .m-slide .img li .c-tit .name{
    font-size: 42px;
  }
  .m-slide .tab li img{
    padding: 0.4rem 0;
  }
  .m-slide .tab li .name{
    font-size: 20px;
  }
  .m-slide .mechanism{
    margin-bottom: 0.6rem;
  }
}
@media only screen and (max-width: 1280px) {
  .m-slide .img li .c-tit .name{
    font-size: 36px;
  }
  .m-slide .img li .c-tit .btitle{
    font-size: 20px;
  }
  .m-slide .tab li .name{
    font-size: 18px;
  }
  .m-slide .tab li img{
    padding: 0.2rem 0;
  }
  .m-slide .mechanism{
    margin-bottom: 0.4rem;
  }
}
@media only screen and (max-width: 1024px) {
  .m-slide .img li .c-tit .name{
    font-size: 32px;
  }
  .m-slide .img li .c-tit .btitle{
    font-size: 18px;
  }
  .m-slide .tab li .name{
    font-size: 18px;
  }
}
@media only screen and (max-width: 767px) {
  .m-slide .img li .c-tit .name{
    font-size: 28px;
  }
  .m-slide .img li .c-tit .btitle{
    font-size: 16px;
  }
  .m-slide .tab li .name{
    font-size: 16px;
  }
  .m-slide{
    height: auto;
    display: block;
  }
  .m-slide .img{
    width: 100%;
    float: none;
    overflow: hidden;
  }
  .m-slide .c-right{
    width: 100%;
    float: none;
  }
}

@media only screen and (max-width: 640px) {
  .m-slide{
    height: 100vh;
    overflow-y:visible;
    position:relative;
  }
  .m-slide .img{
     height: 4rem;
     z-index: 9;
  }
  .m-slide .img li .c-tit .name{
    font-size: 18px;
  }
  .m-slide .img li .c-text{
    top:1.5rem;
    padding:0 0.3rem;
  }
  .m-slide .img li .c-txt{
    font-size: 14px;
    margin-bottom: 0.2rem;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
  }
  .m-slide .img li .c-more a{
    font-size: 16px;
    height:auto;
    opacity: 1;
  }
  .m-slide .tab li .name{
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
  }
  .m-slide .tab li .text{
    font-size: 14px;
  }
  .m-slide .c-right{
    height: 60vh;
    position: absolute;
    z-index: 999;
    bottom:0;
    left: 0;
    padding: 0 15px;
  }
  .m-slide .mechanism{
    margin:15px 0;
  }
  .m-slide .mechanism h4{
    font-size: 20px;
  }
  .m-slide .tab li{
    width: 46%;
  }
  .m-slide .mechanism-s{
    width: 100%;
  }
  .m-slide .mechanism-s .region{
    font-size: 14px;
    width: 27%;
    padding-right: 3%;
  }
  .m-slide .mechanism-s .region option{
    font-size: 14px;
  }
  .m-slide .mechanism-s .search-form .left{
    font-size: 14px;
  }
  .m-slide .mechanism-tab{
    height: 40vh;
  }
  .m-slide .mechanism-s .search-form{
    width: 60%;
    padding-left: 5%;
    margin-left: 5%;
  }
}