.header-btn {
  width: 186px;
  height: 60px;
  border-radius: 12px;
  background-image: linear-gradient(to right, #7262F9, #23B8F6);
  line-height: 60px;
  text-align: center;
  cursor: pointer;
  position: absolute;
  bottom: 15%;
  left: 19%;
}
.header-btn a, .header-btn a:hover, .header-btn a:focus, .header-btn a:active {
  color: #fff;
  font-size: 26px;
}
.zsb h2 {
  text-align: center;
  color: #242424;
  font-size: 53px;
  font-weight: bold;
}
.zsb h2 span {
  color: #1166DD;
}
.zsb_first_wrap {
  position: relative;
  margin-bottom: 140px;
  margin-top: 25px;
}
.zsb_first_wrap .zsb_first_left {
  position: absolute;
  color: #242424;
  font-size: 28px;
  font-weight: bold;
  top: 125px;
  left: 125px;
  width: 400px;
}
.zsb_first_wrap .zsb_first_left p {
  position: relative;
}
.zsb_first_wrap .zsb_first_left p::before {
  content: '"';
  display: block;
  color: #9D9D9D;
  width: 31px;
  height: 20px;
  font-size: 54px;
  position: absolute;
  left: -15px;
  top: -40px;
}
.zsb_first_wrap .zsb_first_left p::after {
  content: '"';
  display: block;
  color: #9D9D9D;
  width: 31px;
  height: 20px;
  font-size: 54px;
  position: absolute;
  right: -5px;
  bottom: -15px;
}
.zsb_first_wrap .zsb_first_right {
  position: absolute;
  color: #242424;
  font-size: 20px;
  top: 137px;
  width: 395px;
  right: 40px;
  font-weight: 300;
  line-height: 28px;
}
.zsb_first_wrap .zsb_first_right p {
  margin-top: -22px;
}
.zsb_first_wrap .zsb_first_right::before {
  content: '';
  display: block;
  width: 15px;
  height: 15px;
  background: #0868FF;
  border-radius: 8px;
  margin-left: -35px;
}
.zsb_first_wrap .zsb_first_img {
  position: absolute;
  left: 49%;
  transform: translateX(-50%);
  bottom: -50px;
  width: 214px;
}
.zsb_first_animation:hover .zsb_first_img {
  animation-name: myAnimation;
  animation-duration: .6s;
  animation-timing-function: ease-in-out;
  animation-iteration-count: 2;
  animation-direction: alternate;
  animation-fill-mode: forwards;
}
@keyframes myAnimation {
  from { bottom: -50px; }
  to { bottom: -65px; }
}
.zsb_second_wrap {
  background-image: url(../image/zsb/gnbg.png);
  background-repeat: no-repeat;
  background-position: 0 0;
  background-size: 100% 100%;
}
.zsb_second_wrap .zsb_second {
  margin-top: 90px;
  padding-bottom: 130px;
  display: flex;
  position: relative;
  align-items: center;
}
.zsb_second_wrap .zsb_second .zsb_second_left {
  width: 500px;
}
.zsb_second_wrap .zsb_second .zsb_second_left img {
  width: 240px;
  position: relative;
  top: 0;
  transition: top 0.3s ease;
}
.zsb_second_wrap .zsb_second .zsb_second_left img:hover {
  top: -10px;
}
.zsb_second_wrap .zsb_second .zsb_second_left img:nth-child(3), .zsb_second_wrap .zsb_second .zsb_second_left img:nth-child(4) {
  margin-top: 10px;
}
.zsb_second_wrap .zsb_second .zsb_second_center {
  width: 82px;
  position: absolute;
  left: 50%;
  transform: translateX(-82px);
  z-index: 9;
}
.zsb_second_wrap .zsb_second .zsb_second_center img:last-child {
  margin-top: 106px;
}
.zsb_second_wrap .zsb_second .zsb_second_right {
  flex: 1;
}
.zsb_second_wrap .zsb_second .zsb_second_right img {
  position: relative;
  top: 0;
  transition: top 0.3s ease;
}
.zsb_second_wrap .zsb_second .zsb_second_right img:hover {
  top: -10px;
}

.zsb_five {
  margin-bottom: 90px;
}

.zsb_six {
  margin-top: 90px;
}

.zsb_third_wrap {
  background-image: url(../image/zsb/cjbg.png);
  background-repeat: no-repeat;
  background-position: 0 0;
  background-size: 100% 100%;
  padding-bottom: 110px;
}
.zsb_third_wrap .zsb_third {
  display: flex;
}
.zsb_third_wrap .zsb_third .zsb_third_item {
  position: relative;
  flex: 1;
  width: 268px;
}
.zsb_third_wrap .zsb_third .zsb_third_item img {
  width: 100%;
  height: auto;
}
.zsb_third_wrap .zsb_third .zsb_third_item h4 {
  font-weight: 600;
  font-size: 26px;
  color: #1166DD;
  line-height: 38px;
  position: absolute;
  top: 60px;
  left: 60px;
}
.zsb_third_wrap .zsb_third .zsb_third_item p {
  position: absolute;
  font-weight: 400;
  font-size: 18px;
  color: #4F5D78;
  top: 125px;
  left: 60px;
  width: 308px;
  line-height: 38px;
  margin-top: 0;
}

.zsb_fourth_wrap {

}
.zsb_fourth_wrap .group-photo {
  zoom: 1;
  margin-top: 80px;
  margin-bottom: 60px;
}
.zsb_fourth_wrap .group-photo .ecology-item {
  float: left;
  width: 20.83%;
  position: relative;
  transition: all .3s ease-out;
  -webkit-transition: all .3s ease-out;
  font-size: 16px;
  color: #fff;
  overflow: hidden;
  height: 506px;
  position: relative;
  margin: 0 5px;
  border-radius: 10px;
}
.zsb_fourth_wrap .group-photo .ecology-item.active {
  width: 33.19% !important;
}
.zsb_fourth_wrap .group-photo .ecology-item img {
  width: 100%;
  height: 100%;
  transition: all .3s ease-out;
  -webkit-transition: all .3s ease-out;
  object-fit: none;
}
.zsb_fourth_wrap .group-photo .ecology-item .ecology-mask {
  position: absolute;
  top: 80px;
  left: 30px;
  right: 30px;
}
.zsb_fourth_wrap .group-photo .ecology-item .ecology-mask h4 {
  font-size: 28px;
  color: #313131;
  font-weight: bold;
}
.zsb_fourth_wrap .group-photo .ecology-item .ecology-mask p {
  font-size: 18px;
  color: #4F5D78;
  line-height: 34px;
}
.zsb_fourth_wrap .flex {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
}