.all {
  background: -webkit-gradient(linear, left top, left bottom, from(#E4EDFA), color-stop(20%, rgba(239, 243, 249, 0))), #FFFFFF;
  background: linear-gradient(180deg, #E4EDFA 0%, rgba(239, 243, 249, 0) 20%), #FFFFFF;
}
iframe{
    width: 100%;
}
video{
    width: 100% !important;
    display: block;
}
.all .l{
    display: flex;
    flex-direction: column;
    align-items: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
.l_flx{
    display: flex;
    align-items: center;
}
.all .l .title{
    text-align: center;
}
.all .r {
  line-height: 1.875;
  color: #737373;
}
.all .r img{
    max-width: 100% !important;
}
.all .r table{
    width: 100% !important;
}
.all .title {
  line-height: 1.6;
}
.all .share {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  margin-left: 30px;
}
.all .share svg path {
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.all .share a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  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: #eeeeee;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
  margin-right: 10px;
  position: relative;
}
.all .share a:hover {
  background: #f06330;
}
.all .share a:hover svg path {
  fill: #fff;
}
.all .share a:last-child{
    margin-right: 0;
}
.all .share .share_img {
  position: absolute;
  left: 50%;
  -webkit-transform: translateX(-50%);
      -ms-transform: translateX(-50%);
          transform: translateX(-50%);
  top: 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;
}
.all .share .share_img img {
  width: 100px;
}
.all .previous_next {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}
.all .previous_next a {
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}
.all .previous_next a:hover {
  color: #f06330;
}
.all .previous_next_flx {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}
.all .previous_next_flx > div {
  width: 48%;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}
.all .previous_next_name {
  color: rgba(0, 0, 0, 0.3);
}
.all .download{
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.all .download a{
    display: flex;
    align-items: center;
    line-height: 1.875;
    transition: all 0.5s;
}
.all .download a:nth-child(n+2){
    margin-top: 14px;
}
.all .download a:hover{
    color: #f06330;
}
.all .download img{
    margin-right:10px;
}
.all .download span{
    overflow: hidden;
text-overflow: ellipsis;
display: -webkit-box;
-webkit-line-clamp: 1;
-webkit-box-orient: vertical;
}
.w1000{
    width: 1000px;
    margin: auto;
}
@media screen and (max-width: 1200px){
   .w1000{
    width: 90%;
} 
}