.clearfix {
  zoom: 1;
}
.clearfix:after {
  content: '';
  display: block;
  height: 0;
  clear: both;
}
.tc {
  text-align: center;
}
.h-tip {
  color: black;
  text-align: center;
  position: relative;
}
.h-tip h4 {
  font-weight: bold;
  font-size: 32px;
  padding-top: 19px;
  padding-bottom: 6px;
  line-height: 37px;
}
.h-tip p {
  font-size: 16px;
  color: #8b8b8b;
}
.h-tip .line {
  top: 0;
  left: 50%;
  -webkit-transform: translate3d(-50%, 0, 0);
  transform: translate3d(-50%, 0, 0);
  width: 68px;
  height: 5px;
  background: black;
  position: absolute;
}
.banner {
  height: 664px;
  overflow:hidden;
  position:relative;
}
.banner img { 
  width: 100%;
  vertical-align: top;
}
.banner .vtc {
  width: 408px;
  height: 141px;
  background-image: url(../img/k.png);
  background-size: contain;
  overflow: hidden;
  color: white;
  text-align: center;
  top:370px;
}
.banner .vtc h4 {
  padding-top: 29px;
  font-size: 40px;
  padding-bottom: 15px;
}
.banner .vtc p {
  font-size: 28px;
}
.characteristic {
  padding-top: 90px;
  padding-bottom: 100px;
  zoom: 1;
}
.characteristic .h-tip {
  padding-bottom: 68px;
  height: 84px;
}
.characteristic .item {
  padding-bottom: 64px;
  text-align: center;
  width: 240px;
  height: 226px;
  float: left;
}
.characteristic .item img {
  transition: all 0.5s;
  vertical-align: top;
}
.characteristic .item h3 {
  padding-top: 37px;
  padding-bottom: 13px;
  font-size: 21px;
}
.characteristic .item p {
  color: #4d4d4d;
  font-size: 15px;
}
.characteristic .item:hover img {
  transform: scale(1.1);
}
.characteristic:after {
  content: '';
  display: block;
  height: 0;
  clear: both;
}
.ourcase {
  padding-top: 70px;
  background: #f6f6f6;
  padding-bottom: 82px;
}
.ourcase .warp {
  position: relative;
}
.ourcase .h-tip {
  padding-bottom: 46px;
  height: 84px;
}
.ourcase .case-list {
  padding-bottom: 37px;
  zoom: 1;
}
.ourcase .case-list .item {
  float: left;
  width: 294px;
  height: 314px;
  position: relative;
  overflow: hidden;
  padding-bottom: 34px;
  cursor: pointer;
}
.ourcase .case-list .item > img {
  width: 100%;
  vertical-align: top;
  -webkit-transition: all 0.2s ease-in-out;
  -moz-transition: all 0.2s ease-in-out;
  -o-transition: all 0.2s ease-in-out;
  -ms-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
}
.ourcase .case-list .item p {
  background: #f6f6f6;
  overflow: hidden;
  position: relative;
  z-index: 99;
  font-size: 16px;
  padding-top: 14px;
  line-height: 38px;
}
.ourcase .case-list .item span {
  color: #878787;
  font-size: 14px;
}
.ourcase .case-list .item .mask {
  transition: all 0.5s;
  transform: rotateZ(270deg);
  transform-origin: left top;
  background: #3a48ba;
  opacity: 0.9;
  position: absolute;
  top: 0;
  left: 0;
  width: 294px;
  height: 248px;
}
.ourcase .case-list .item .mask .vtc {
  width: 132px;
  height: 37px;
  color: white;
  border: 1px solid white;
  text-align: center;
  line-height: 33px;
  font-size: 16px;
}
.ourcase .case-list .item .mask .vtc a {
  color: white;
  cursor: pointer;
  display: inline-block;
  vertical-align: middle;
}
.ourcase .case-list .item .mask .vtc img {
  vertical-align: middle;
}
.ourcase .case-list .item .mask .vtc:after {
  content: '';
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 20px;
  height: 14px;
  background: #3a48ba;
}
.ourcase .case-list .item:hover img {
  -webkit-transform: scale(1.2);
  -moz-transform: scale(1.2);
  -o-transform: scale(1.2);
  -ms-transform: scale(1.2);
  transform: scale(1.2);
}
.ourcase .case-list .item:nth-of-type(2) {
  margin: 0 8px;
}
.ourcase .case-list .item:nth-of-type(3) {
  margin-right: 8px;
}
.ourcase .case-list .item:nth-of-type(6) {
  margin: 0 8px;
}
.ourcase .case-list .item:nth-of-type(7) {
  margin-right: 8px;
}
.ourcase .case-list:after {
  content: '';
  display: block;
  height: 0;
  clear: both;
}
.ourcase .btn {
  position: absolute;
  width: 291px;
  height: 62px;
  line-height: 62px;
  font-size: 25px;
  background-image: url(../img/build/k-2.png);
  background-size: cover;
  left: 50%;
  transform: translateX(-50%);
  bottom: -30px;
  text-align: center;
}
.ourcase .btn img {
  vertical-align: middle;
  transition: all 0.2s;
}
.ourcase .btn a {
  color: #3643bb;
}
.ourcase .btn:hover img,
.ourcase .btn a {
  transform: scale(1.2);
}
.our-line {
  background: url(../img/H5/bg-2.png) no-repeat center bottom;
 
  padding-top: 73px;
}
.our-line .warp {
  position: relative;
  height: 531px;
}
.our-line .h-tip {
  color: white;
}
.our-line .h-tip .line {
  background: white;
}
.our-line .h-tip p {
  color: white;
}
.our-line .item {
  position: absolute;
  line-height: 18px;
  color: white;
  font-size:15px;
}
.our-line .item img {
  vertical-align: middle;
  margin-left: 4px;
}
.our-line .item:nth-of-type(1) {
  bottom: 164px;
  left: 95px;
}
.our-line .item:nth-of-type(2) {
  top: 136px;
  left: 300px;
}
.our-line .item:nth-of-type(3) {
  bottom: 200px;
  left: 517px;
}
.our-line .item:nth-of-type(4) {
  bottom: 266px;
  right: 422px;
}
.our-line .item:nth-of-type(5) {
  bottom: 192px;
  right: 178px;
}
.our-line .item:nth-of-type(6) {
  bottom: 100px;
  right: 7px;
}
.core {
  padding-top: 95px;
  position: relative;
  padding-bottom: 175px;
}
.core .advantage-main {
  padding-bottom: 58px;
  padding-top: 65px;
  zoom: 1;
}
.core .advantage-main .item {
  float: left;
  box-sizing: border-box;
  width: 240px;
  height: 150px;
  border-right: 1px solid #e1e1e1;
  text-align: center;
  padding-top: 7px;
}
.core .advantage-main .item b {
  font-size: 60px;
  color: #565656;
}
.core .advantage-main .item p {
  padding: 15px 0 12px 0;
  font-size: 30px;
  color: #565656;
}
.core .advantage-main .item span {
  font-size: 16px;
  color: #7f7f7f;
}
.core .advantage-main .item:last-child {
  border: none;
}
.core .advantage-main:after {
  content: '';
  display: block;
  height: 0;
  clear: both;
}
.core .btn {
  position: absolute;
  width: 347px;
  height: 58px;
  line-height: 58px;
  border: 2px solid #3643bb;
  text-align: center;
  font-size: 26px;
  color: #3643bb;
  left: 50%;
  transform: translateX(-50%);
  bottom: 90px;
}
.core .btn a {
  color: #3643bb;
  transition: all 0.2s;
}
.core .btn img {
  transition: all 0.2s;
  vertical-align: middle;
}
.core .btn:after {
  content: '';
  position: absolute;
  right: -3px;
  bottom: -3px;
  width: 20px;
  height: 14px;
  background: white;
}
.core .btn:hover img,
.core .btn a {
  transform: scale(1.2);
}