.dflexnow{display:flex;display:-webkit-flex;flex-wrap:wrap; justify-content:center;}
 .bannerBox{width:100%;height:900px;background:url(/static/images/sdwan/bg1.jpg) no-repeat center;background-size:cover;}
 .txtandpic{position:absolute;z-index:2;left:50%;top:0px;width:1500px;margin-left:-750px;height:100%; justify-content:space-between;align-content:center;}
 .txt1zone{width:50%;justify-content:left;padding-top:120px;}
 .txt1zone h1{font-size:60px;color:#fff;height:80px;line-height:80px;text-align:left;}
 .txt1zone h2{font-size:40px;color:#fff;height:60px;line-height:60px;margin-top:30px;text-align:left;}
.pic1zone{width:50%}
.pic1zone img{width:100%;}
.txt1zone    .firstround{width:100%;justify-content:flex-start;margin-top:30px; }
.txt1zone    .firstround .fronds{width:20%;text-align:left;}
.txt1zone    .firstround .fronds img{width:75px;height:75px;}
.txt1zone    .firstround .fronds  p{font-size:18px;color:#fff; padding-top:20px; font-weight:700;text-align:left;}
.btnnow{padding-top:20px;width:100px;}
.btnnow a{color:#fff;}
@media (max-width: 767px) {
.txt1zone    .firstround{padding-top:30px;justify-content: space-between;}
.txt1zone    .firstround .fronds  p{font-size:12px;padding-top:20px;padding-bottom:15px;text-align:center;}
.txt1zone    .firstround{justify-content:start;}
.btnnow{margin:0 auto;width:100px;}
 .bannerBox{height:700px;}
  .txtandpic{width:100%;margin-left:0;left:0px;display:block!important;}
 .txt1zone,.pic1zone{padding-top:40px;width:100%}
 .txt1zone    .firstround .fronds{width:25%;text-align:center;}
 .txt1zone    .firstround .fronds img{width:65px;height:65px;}
 .txt1zone h1{font-size:30px;height:50px;line-height:50px;text-align:center;}
 .txt1zone h2{font-size:20px;height:40px;line-height:40px;margin-top:10px;text-align:center;}
 .pic1zone img{width:350px !important;}
}
@media (min-width: 400px) and (max-width: 500px) {
 .bannerBox{height:800px;}
.pic1zone img{width:400px !important;}
}
@media (min-width: 500px) and (max-width: 600px) {
 .bannerBox{height:850px;}
.pic1zone img{width:500px !important;}
}
@media (min-width: 600px) and (max-width: 769px) {
 .bannerBox{height:900px;}
.pic1zone img{width:600px !important;}
}
@media (min-width: 768px) and (max-width: 991px) {
.txt1zone    .firstround{ }
.txt1zone    .firstround .fronds {width:23%;}
.txt1zone    .firstround .fronds img{width:60px;height:60px;}
.txt1zone    .firstround .fronds  p{font-size:14px;padding-top:20px;}
 .bannerBox{height:600px;}
  .txtandpic{width:700px;margin-left:-350px;}
 .txt1zone{padding-top:40px;}
 .txt1zone h1{font-size:30px;height:50px;line-height:50px;}
 .txt1zone h2{font-size:18px;height:40px;line-height:40px;margin-top:20px;}
}
@media (min-width: 992px) and (max-width: 1199px) {
.txt1zone    .firstround{ }
.txt1zone    .firstround .fronds img{width:60px;height:60px;}
.txt1zone    .firstround .fronds  p{font-size:16px;padding-top:20px;}
 .bannerBox{height:700px;}
  .txtandpic{width:960px;margin-left:-480px;}
 .txt1zone{padding-top:80px;}
 .txt1zone h1{font-size:40px;height:60px;line-height:60px;}
 .txt1zone h2{font-size:26px;height:46px;line-height:46px;margin-top:30px;}
}
@media (min-width: 1200px) and (max-width: 1499px) {
.txt1zone    .firstround{ }
.txt1zone    .firstround .fronds img{width:70px;height:70px;}
.txt1zone    .firstround .fronds  p{font-size:16px;padding-top:20px;}
 .bannerBox{height:800px;}
  .txtandpic{width:1200px;margin-left:-600px;}
 .txt1zone{padding-top:100px;}
 .txt1zone h1{font-size:50px;height:70px;line-height:70px;}
 .txt1zone h2{font-size:30px;height:50px;line-height:50px;margin-top:30px;}
}




.sdwanbox{width:100%;padding:100px 0;background-color:#fff;}
.sdwanbox2{background-color:#000}
.sdwanbox .topzone{width:800px;margin:0 auto; }
.sdwanbox .topzone h3{font-size:40px;text-align:center;color:#d7000f;line-height:60px;}
.sdwanbox .topzone h4{font-size:30px;text-align:center;color:#fff;line-height:40px;font-weight:700;margin-top:25px;}
.sdwanbox6 .topzone h4{color:#000;}
.sdwanbox5 .topzone h6{color:#272727 !important; }
.sdwanbox .topzone h6{font-size:18px;text-align:center;color:#fff;line-height:50px;font-weight:normal;}
.sdwanbox .topzone p{font-size:20px;line-height:40px; text-align:center;color:#272727; padding-top:25px;}
.sdwanbox2 .topzone p{color:#fff;}
.sdwanbox .cotentzone{ }
.sdwanbox .imgzone{ text-align:center;padding-top:50px;}
.sdwanbox .imgzone img{max-width:80%; }
.sdwanbox .sychangjing{font-size:20px;line-height:50px; height:50px;color:#fff;background-color:#000;margin:20px 80px;text-align:center; }
.sdwanbox .sycjing{margin:0 80px; justify-content:space-between; }
.sdwanbox .sycjing .sycone{width:calc(33% - 10px) }
.sdwanbox .sycjing .sycone img{width:100% }
.sdwanbox .sycjing .sycone h3{font-size:20px;line-height:50px; height:50px;color:#fff;background-color:#d7000f;margin:20px 0;text-align:center; }
.sdwanbox3 {background:#000 url(/static/images/sdwan/bg4.jpg) no-repeat bottom center;background-size:cover;}
.sdwanbox5{background-color:#ecfdff;}
@media  (max-width: 991px) {
.sdwanbox .topzone{width:90%;margin:0 auto; }
}
@media (max-width: 767px) {
.sdwanbox{padding:50px 0;}
.sdwanbox .topzone h3{font-size:28px;line-height:40px;}
.sdwanbox .topzone h4{font-size:16px;line-height:28px;margin-top:15px;}
.sdwanbox .sycjing .sycone h3,.sdwanbox .sychangjing { font-size: 16px; line-height: 40px; height: 40px; margin: 12px 0; }
.sdwanbox .sychangjing { margin: 15px 5px;height:auto;line-height:30px;text-align:left;padding:15px ; }
.sdwanbox .topzone p{font-size:16px;line-height:25px; padding-top:15px; text-align:left;}
.sdwanbox .imgzone img{max-width:90%; }
.sdwanbox .sycjing .sycone{width:100% }
.sdwanbox .sycjing{margin:5px;  }
}
@media (min-width: 768px) and (max-width: 991px) {
.sdwanbox{padding:60px 0;}
.sdwanbox .topzone h3{font-size:30px;line-height:46px;}
.sdwanbox .topzone h4{font-size:16px;line-height:28px;margin-top:15px;}
.sdwanbox .sycjing .sycone h3,.sdwanbox .sychangjing { font-size: 14px; line-height: 30px; height: 30px; margin: 15px 0; }
.sdwanbox .sychangjing { margin: 15px 50px; }
.sdwanbox .sycjing{margin:0 50px;  }
.sdwanbox .topzone p{font-size:16px;line-height:25px; padding-top:15px;}
}
@media (min-width: 992px) and (max-width: 1199px) {
.sdwanbox{padding:70px 0;}
.sdwanbox .topzone h3{font-size:32px;line-height:50px;}
.sdwanbox .topzone h4{font-size:20px;line-height:30px;margin-top:18px;}
.sdwanbox .sycjing .sycone h3,.sdwanbox .sychangjing { font-size: 16px; line-height: 40px; height: 40px; margin: 15px 0; }
.sdwanbox .sychangjing { margin: 15px 60px; }
.sdwanbox .sycjing{margin:0 60px;  }
.sdwanbox .topzone p{font-size:16px;line-height:25px; padding-top:15px;}
}
@media (min-width: 1200px) and (max-width: 1500px) {
.sdwanbox{padding:80px 0;}
.sdwanbox .topzone h3{font-size:36px;line-height:54px;}
.sdwanbox .topzone h4{font-size:24px;line-height:36px;margin-top:20px;}
.sdwanbox .sycjing .sycone h3 ,.sdwanbox .sychangjing{ font-size: 18px; line-height: 46px; height: 46px; margin: 15px 0; }
.sdwanbox .sychangjing { margin: 15px 70px; }
.sdwanbox .topzone p{font-size:18px;line-height:30px; padding-top:20px;}
.sdwanbox .sycjing{margin:0 70px;  }
}