body {
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 15px;
    box-sizing: border-box;
}

header {
    margin: 25px 0;
    background: #f1f4f9;
    border-radius: 12px;
}

header .top {
    height: 100px;
    display: flex;
    justify-content: space-between;
    line-height: 100px;
    overflow: hidden
}

header .top .logo {
    height: 80px;
    margin-top: 10px;
    margin-left: 25px;
}

header .top .logo img {
    height: 100%;
}

header .top .daohang li {
    display: inline-block;
    margin-right: 40px;
}

header .top .daohang li a {
    color: #47566b;
    font-size: 18px;
    font-weight: bold;
}

header .top .daohang li a:hover {
    color: #000;
}

header .top .daohang li a.active {
    color: #000;
}

header .top .search {
    height: 60px;
    margin-top: 20px;
    margin-right: 15px;
    background: #fff;
    border-radius: 20px;
    background: #e7f4ed;
    display: flex;
    border: 2px solid #b8d1fa;
    justify-content: space-between;
}

header .top .search input {
    width: 240px;
    height: 60px;
    border: none;
    outline: none;
    background: none;
    padding-left: 15px;
    font-size: 18px;
    color: #47566b;
    font-weight: bold;
}

header .top .search button {
    width: 60px;
    height: 60px;
    border: none;
    outline: none;
    background: none;
    font-size: 18px;
    color: #47566b;
    font-weight: bold;
    cursor: pointer;
    margin-right: 15px;
}

header .top .search button i {
    font-size: 24px;
}

.sy_mk1 {
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.3);
}

footer {
    background: #465568;
    min-height: 500px;
    padding: 10% 10% 10% 20%;
    margin-top: 25px;
    box-sizing: border-box;
}

footer .d-lx .tit {
    color: #fefefe;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 28px;
}

footer .d-lx .con {
    color: #fefefe;
    line-height: 36px;
}

footer .ewm {
    width: 180px;
    margin-top: 50px;
}

.team {
    background: #f1f4f9;
    border-radius: 12px;
    padding: 5%;
    box-sizing: border-box;
}

.team .fl {
    width: 28%;
}

.team .fl img {
    border: 2px solid #b8d1fa;
    border-radius: 12px;
}

.team .fr {
    width: 66%;
    font-size: 18px;
    line-height: 32px;
}

.keyan {
    background: #f1f4f9;
    border-radius: 12px;
    padding: 3% 2%;
    box-sizing: border-box;
}

.keyan .mk1 .title span {
    display: inline-block;
    padding: 10px 12px;
    font-size: 22px;
    box-sizing: border-box;
}

.keyan .mk1 .title span.s1 {
    background: #0065f3;
    color: #fff;
}

.keyan .mk1 .title span.s2 {
    background-color: #fff;
}

.keyan .mk1 .con .list {
    margin-top: 50px;
}

.keyan .mk1 .con .list .tit {
    font-size: 22px;
}

.keyan .mk1 .con .list .tit span {
    display: inline-block;
    background-color: #fff;
    color: #0065f3;
    padding: 8px 10px;
    border-radius: 8px;
    box-sizing: border-box;
    margin-right: 10px;
}

.keyan .mk1 .con .list .videopic {
    margin-top: 20px;
    display: flex;
    padding: 0 5%;
    box-sizing: border-box;
    justify-content: space-between;
    align-items: center;
}

.keyan .mk1 .con .list .videopic video {
    display: block;
    border: 2px solid #b8d1fa;
    border-radius: 12px;
    height: 100%;
    width: 45%;
    box-shadow: -8px 10px 15px -3px rgba(0, 0, 0, 0.3);
}

.keyan .mk1 .con .list .videopic img {
    display: block;
    width: 45%;
    padding: 3%;
    box-sizing: border-box;
    background: #fff;
    border-radius: 12px;
}

.keyan .mk1 .con .list .d-wz {
    margin-top: 50px;
    font-size: 18px;
    line-height: 32px;
}

.keyan .mk1 .con .list .d-wz p {
    margin-bottom: 10px;
}


.keyan .mk1 .con .list .picstwo {
    margin-top: 20px;
    display: flex;
    box-sizing: border-box;
    justify-content: space-between;
    align-items: center;
}

.keyan .mk1 .con .list .picstwo img {
    display: block;
    width: 48%;
    border: 2px solid #b8d1fa;
    border-radius: 12px;

    padding: 3%;
    box-sizing: border-box;
    background: #fff;
}

.hezuo {
    margin: 25px 0;
    background: #84aed8;
    padding: 2%;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hezuo .left {
    width: 30%;
    display: flex;
    color: #fff;
    font-size: 32px;
    align-items: center;
    justify-content: center;
}

.hezuo .right {
    border-radius: 12px;
    width: 68%;
    padding: 2%;
    box-sizing: border-box;
    background: #eff6ff;
}

.hezuo .right .fl {
    width: 23.5%;
    text-align: center;
    margin-bottom: 5%;
    margin-right: 2%;
}

.hezuo .right .fl:nth-child(4n) {
    margin-right: 0;
}

.hezuo .right .fl img {
    height: 200px;
    width: 200px;
    object-fit: cover;
}

.dongtai {
    margin-top: 25px;
    background-color: #f1f4f9;
    border-radius: 12px;
    padding: 1.5%;
    line-height: 28px;
    box-sizing: border-box;
    min-height: 80vh;
}

.lunwen {
    margin-top: 25px;
}

.lunwen .con {
    background-color: #f5fafe;
    border-radius: 12px;
    padding: 1.5%;
    border: 2px solid #b8d1fa;
    line-height: 28px;
    box-sizing: border-box;
    min-height: 30vh;
    line-height: 28px;
}

.lunwen .title {
    text-align: center;
    margin: 15px 0;
    font-size: 56px;
    letter-spacing: 1px;
    color: #666666;
}

.lunwen .con2 {
    background-color: #f5fafe;
    border-radius: 12px;
    padding: 1.5%;
    border: 2px solid #b8d1fa;
    line-height: 28px;
    box-sizing: border-box;
    min-height: 60vh;
    line-height: 28px;
}

.hexin {
    padding: 2% 5%;
    box-sizing: border-box;
    margin: 50px 0 25px 0;
}

.hexin h1 {
    font-weight: bold;
    font-size: 42px;
    color: #1e293b;
    margin-bottom: 25px;
}

.hexin .pro .list {
    display: block;
    margin-right: 2%;
    width: 32%;
    background: #f1f4f9;
    padding: 2%;
    border-radius: 18px;
    box-sizing: border-box;
}

.hexin .pro .list:nth-child(3n) {
    margin-right: 0;
}

.hexin .pro .list:nth-child(2n-1) img {
    background: #eff6ff;
    border: 2px solid #61a5fa;
    border-radius: 18px;
}

.hexin .pro .list:nth-child(2n) img {
    background: #dfeded;
    border: 2px solid #91cbb5;
    border-radius: 18px;
}

.hexin .pro .list:nth-child(3n) img {
    background: #fbf5ff;
    border: 2px solid #c187f8;
    border-radius: 18px;
}

.hexin .pro .list .tit {
    font-weight: bold;
    font-size: 28px;
    color: #1e293b;
    margin: 25px 0;
}

.hexin .pro .list .con {
    color: #485568;
    min-height: 180px;
    line-height: 28px;
}

.promk1 .top {
    background: #84aed8;
    padding: 10% 2%;
    position: relative;
    box-sizing: border-box;
    border-radius: 12px;
}



.promk1 .top .tit {
    font-size: 32px;
    color: #fff;
    top: 8%;
    left: 5%;
    position: absolute;
}

.promk1 .top .swiper-pagination1 {
    bottom: 50px;
}
.swiper-pagination1 .swiper-pagination-bullet {
    width: 80px;
    height: 6px;
    display: inline-block;
    border-radius: 5px;
}

.swiper-pagination1 .swiper-pagination-bullet-active {
    background: #bdf2ba;
}



.promk1 .top .swiper-pagination2 {
    bottom: 50px;
}
.swiper-pagination2 .swiper-pagination-bullet {
    width: 80px;
    height: 6px;
    display: inline-block;
    border-radius: 5px;
}

.swiper-pagination2 .swiper-pagination-bullet-active {
    background: #bdf2ba;
}


.promk1 .top .swiper-pagination3 {
    bottom: 50px;
}
.swiper-pagination3 .swiper-pagination-bullet {
    width: 80px;
    height: 6px;
    display: inline-block;
    border-radius: 5px;
}

.swiper-pagination3 .swiper-pagination-bullet-active {
    background: #bdf2ba;
}

.promk1 .bottom {
    background: #f1f4f9;
    padding: 5% 2%;
    margin: 25px 0;
    position: relative;
    box-sizing: border-box;
    border-radius: 12px;
}

.promk1 .bottom .bom1 .tit {
    font-weight: bold;
    font-size: 32px;
    width: 80%;
    color: #1e293b;
    margin-bottom: 25px;
}
.promk1 .bottom .bom1 {
    position: relative;
    width: 90%;
    margin: 0 auto;
}
.promk1 .bottom .bom1 .con {
    color: #445567;
    width: 80%;
    line-height: 28px;
}
.promk1 .bottom .bom1  .ewm{
    position: absolute;
    width: 120px;
    right: 10px;
    top:10px;
}
.promk1 .bottom .bom2{
    display: flex;
    justify-content:space-between;
    align-items: center;
  
    width: 90%;
    margin: 0 auto;
      margin-top: 100px;
}
.promk1 .bottom .bom2  .left {
    width: 45%;
}

.promk1 .bottom .bom2 .right{
    width: 40%;
}
.promk1 .bottom .bom2 .right img{
    border-radius: 12px;
} 
.promk1 .bottom .bom2  .left .list{
    margin-bottom: 50px;
}
.promk1 .bottom .bom2  .left .list .fl{
    background: #fff;
    width: 70px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 70px;
    border-radius: 12px;
}
.promk1 .bottom .bom2  .left .list .fl img{
    width: 40px;
}
.promk1 .bottom .bom2  .left  .list .fr{
    width: calc(100% - 100px);
    margin-top: 25px;
}
.promk1 .bottom .bom2  .left  .list .fr .t{
    color: #1e2a3a;
    font-weight: bold;
    font-size: 23px;
}
.promk1 .bottom .bom2  .left  .list .fr .c{
        color: #465568;
        line-height: 28px;
        margin: 25px 0;
}
.promk1 .bottom .bom2  .left  .list .fr .a{
    color: #1f65fb;
    font-weight: bold;
}
    .goTop >img{
            width: 50px;
            height: 50px;
            cursor: pointer;
        }
        .goTop{
            position: fixed;
            right : 20px;
            bottom : 20px;
        }