:root {
  --theme: #02509B;
  ---box-shadow: 0px 0px 60px 0px rgba(4, 23, 26, 0.08);
  --titlecolor: #02509B;
  --white: #fff;
  --bgcolor: #02509B;
  --changeBtn: #E49F20;
}
/* 产品中心系列 start*/
.auto_grid {
    margin: 0 10%;
}
/* 当屏幕宽度小于600px时使用 */
@media screen and (max-width: 600px) {
    .auto_grid {
        margin: 0;
    }
}
.main_service_item {
    padding: 30px 30px;
    text-align: center;
    transition: .5s;
    background-color: var(--white);
    margin-bottom: 15px;
    box-shadow: 0px 1px 30px 0px rgba(0, 0, 0, 0.1);
    margin-top: 100px;
}
.main_service_item:hover{
    background-color: var(--bgcolor);
    color: var(--white);
}
.single_service >i {
    background-color: var(--bgcolor);
    font-size: 45px;
    width: 120px;
    height: 120px;
    line-height: 120px;
    color: var(--white);
    display: inline-block;
    text-align: center;
    border-radius: 100%;
    transition: .5s;
    transform: translate(0, -75%);
    box-shadow: 0px 1px 30px 0px rgba(0, 0, 0, 0.1);
}
.main_service_item:hover .single_service >i{
    background-color: var(--white);
    color: var(--bgcolor);
}
.service_area {
    padding: 130px 0 180px;
    margin-top: 75px;
}
.inner_service {
    margin-bottom: 50px;
}
/* section title */
.section_title {
    text-align: center;
    position: relative;
    margin-bottom: 110px;
}
.section_title h4 {
    color: var(--theme);
    font-size: 16px;
    margin-bottom: 5px;
}
.section_title h2{
    font-size: 52px;
}
.dn_title h2{
    color: var(--theme);
}
.section_title h3{
    font-size: 52px;
    color: var(--theme);
}
.dn_title h3{
    color: var(--theme);
}
.single_service {
  min-height: 160px;
}
.single_service h3 {
  margin: -50px 0 10px;
  transition: .5s;
  font-size: 16px;
  font-weight: 600;
}
.main_service_item:hover .single_service h3 a{
    color: var(--white);
}
.single_service p {
    margin-bottom: 20px;
    transition: .5s;
    /* min-height: 50px; */
}
.main_service_item:hover .single_service p{
    color: var(--white);
}
.main_service_item:hover .service_btn a{
    color: var(--white);
}
.service_btn a{
    font-size: 25px;
    transition: .5s;
    color: var(--bgcolor);
}
/* 产品中心系列 end*/

/* 产品中心列表start */
.mt-30, .my-30 {
  margin-top: 30px;
}
.service-box1 {
  transition: all 0.4s;
  background-color: #F1F5FD;
  border-radius: 4px;
}
.service-box1 .image {
  height: 300px;
  overflow: hidden;
  border-radius: 5px 5px 0px 0px;
}
.service-box1 .image img {
  transition: all 0.4s;
  object-fit: cover;
  height: 100%;
  width: 100%;
}
.service-box1 .heading1 {
  padding: 0px 24px;
  height: 160px;
  padding-top: 10px;
  padding-bottom: 15px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.service-box1 .heading1 h4 a {
  transform: all 0.4s;
  font-size: 16px;
  font-weight: 600;
}
.service-box1 .heading1 .learn {
  font-size: 14px;
  font-weight: 600;
}
.service-box1 .heading1 h4 a:hover {
  transition: all 0.4s;
  color: var(--theme);
}
.service-box1 .heading1 .learn {
  display: inline-block;
  overflow: hidden;
}
.service-box1 .heading1 .learn span {
  display: inline-block;
  transform: rotate(-45deg) translateX(0px) translateY(1px);
  font-size: 17px;
  transition: all 0.4s;
}
.service-box1 .heading1 .learn .arrow2 {
  transform: translateY(-8px) rotate(-45deg) translateX(-52px);
  transition: all 0.4s;
  opacity: 0;
}
.service-box1 .heading1 .learn .arrow1 {
  transition: all 0.4s;
  opacity: 1;
}
.service-box1 .heading1 .learn:hover {
  color: var(--theme);
}
.service-box1 .heading1 .learn:hover .arrow2 {
  transform: translateY(-12px) rotate(-45deg) translateX(-18px);
  transition: all 0.4s;
  opacity: 1;
}
.service-box1 .heading1 .learn:hover .arrow1 {
  transition: all 0.4s;
  transform: translateY(-7px) rotate(-45deg) translateX(45px);
  opacity: 0;
}
.service-box1:hover {
  transition: all 0.4s;
  transform: translateY(-10px);
}
.service-box1:hover .image {
  position: relative;
}
.service-box1:hover .image img {
  transition: all 0.4s;
  transform: scale(1.1) rotate(2deg);
}
.service-box1:hover .heading1 .learn {
  color: var(--theme);
}
.service-box1:hover .heading1 .learn .arrow2 {
  transform: translateY(-12px) rotate(-45deg) translateX(-18px);
  transition: all 0.4s;
  opacity: 1;
}
.service-box1:hover .heading1 .learn .arrow1 {
  transition: all 0.4s;
  transform: translateY(-7px) rotate(-45deg) translateX(45px);
  opacity: 0;
}
/* 产品列表 end */