.all {
  height: 100vh;
  background-size: cover;
  background-image: url(../img/banner.jpg);
  padding-top: 134px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
}
.all .wrap {
  position: relative;
  z-index: 2;
}
.all .bg {
  position: absolute;
  width: 100%;
  left: 0;
  bottom: 0;
}
.all .welcome {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  overflow: hidden;
  border-radius: 0 30px 0 30px;
}
.all .l {
  width: 27.7%;
  background-size: cover;
  background-image: url(../img/index3_bg2.jpg);
  color: #fff;
  padding: 75px 55px 0;
}
.all .r {
  width: 72.3%;
  background: rgba(240, 246, 254, 0.96);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  padding: 75px;
}
.all .r a {
  background: #fff;
  width: 265px;
  border-radius: 0 30px 0 30px;
  padding: 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.all .r a::after {
  content: "";
  display: block;
  width: 100%;
  height: 3px;
  left: 0;
  bottom: 0;
  background: #f06330;
  position: absolute;
  opacity: 0;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.all .r a:hover {
  -webkit-box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
          box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.all .r a:hover::after {
  opacity: 1;
}
.all .l_line {
  height: 1px;
  background: rgba(255, 255, 255, 0.2);
  margin: 20px 0;
}
.all .l_des {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.875;
}
.all .icon {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin-bottom: 35px;
}
.all .tit {
  text-align: center;
  line-height: 1;
}
.all .r_line {
  height: 1px;
  width: 40px;
  background: #cdd1dd;
  margin: 15px auto;
}
.all .des {
  line-height: 1.875;
  color: #737373;
}

.footer3 {
  position: absolute;
  z-index: 2;
  left: 50%;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  bottom: 40px;
}
.footer3 .footer_btm {
  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;
  color: rgba(0, 0, 0, 0.5);
}
.footer3 .footer_btm a {
  color: rgba(0, 0, 0, 0.5);
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.footer3 .footer_btm a:hover {
  color: #f06330;
}
.footer3 .footer_media {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}
.footer3 .footer_media a {
  width: 40px;
  height: 40px;
  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;
  background: #cccccc;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  margin-right: 10px;
  position: relative;
  border-top-right-radius: 10px;
  border-bottom-left-radius: 10px;
}
.footer3 .footer_media a .share_img {
  position: absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  bottom: 70px;
  padding: 10px;
  border-radius: 5px;
  -webkit-box-shadow: 0 0 18px 0 rgba(0, 0, 0, 0.2);
          box-shadow: 0 0 18px 0 rgba(0, 0, 0, 0.2);
  background: #fff;
  display: none;
}
.footer3 .footer_media a .share_img img {
  width: 82px;
}
.footer3 .footer_media a:hover {
  background: #999999;
}
.footer3 .footer_media a:last-child {
  margin-right: 0;
}
@media screen and (max-width: 1700px){
    .all .l{
        padding: 50px 40px;
    }
    .all .r{
        padding: 50px;
    }
    .all .r a{
        width: calc((100% - 40px)/3);
        padding: 30px;
    }
    .all .icon{
        height: 60px;
        margin-bottom: 15px;
    }
    .all .icon img{
        max-height: 100%;
    }
    .footer3{
        bottom: 20px;
    }
    .all .welcome{
        border-radius: 0 20px 0 20px;
    }
    .all .r a{
        border-radius: 0 20px 0 20px;
    }
}
@media screen and (max-width: 1200px){
    .all .l{
        padding: 30px;
    }
    .all .r{
        padding: 20px;
    }
    .all{
        height: calc(100vh - 104px);
        padding-top: 104px;
    }
    .all .icon{
        height: 40px;
    }
    .all .r a{
                width: calc((100% - 30px) / 3);
                padding: 20px;
    }
    .all .tit{
        font-size: 18px;
    }
}
@media screen and (max-width: 768px){
    .all{
        margin-top: 104px;
        height: auto;
        padding: 40px 0;
    }
    .all .welcome{
        display: block;
                border-radius: 0 15px 0 15px;
    }
    .all .l{
        width: 100%;
    }
    .all .r{
        width: 100%;
    }
    .footer3{
        padding: 40px 0;
        position: relative;
        bottom: 0;
        left: 0;
        transform: inherit;
    }
    .footer3 .footer_btm{
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .footer3 .footer_media{
        margin-top: 20px;
    }
    .all .r{
        flex-direction: column;
        padding: 40px 20px;
    }
    .all .r a{
        width: 100%;
        border-radius: 0 15px 0 15px;
    }
    .all .r a:nth-child(n+2){
        margin-top: 20px;
    }
    .footer3 .footer_btm p{
        text-align: center;
    }
}