.sv_header {
    position: relative;
}
.sv_header img {
    width: 100%;
}
.sv_header span {
    color: #fff;
    position: absolute;
    left: 19%;
    top: 40%;
}
.sv_header span h1 {
    font-size: 61px;
}
.sv_header span h4 {
    font-size: 43px;
    font-weight: 500;
    margin-top: 45px;
}

/* 产品服务 */
.sv_tittle {
    text-align: center;
}
.sv_tittle h3 {
    font-size: 32px;
    margin-bottom: 4px;
    margin-top: 50px;
}
.sv_tittle div {
    display: inline-block;
    width: 64px;
    height: 4px;
    border-radius: 15px;
    background-color: #0FB5EC;
}
.ceng {
    display: flex;
    /* height: 520px; */
    margin: 42px 0;
}
.ceng .c_img {
    width: 52%;
}
.ceng .c_text {
    width: 43%;
    /* vertical-align: middle; */
    /* height: 218px; */
    margin: auto 33px;
}
.ceng  .c_text h2 {
    font-size: 48px;
    font-weight: 500;
    margin-bottom: 24px;
}
.ceng .c_text h4 {
    font-size: 20px;
    font-weight: 500;
    line-height: 1.5;
}
.ceng_color{
    background-color: #F2F7FF;
}


.footer {
     margin-top: 0px !important;
}