*{ padding: 0; margin: 0;}
.home_top {
    background: #fff;
    padding: 15px 0;
}
.home_top dl {
    width: 1000px;
    margin: 0 auto;
    color: #0B0C0D;
    font-size: 20px;
    display: flex;
    justify-content: space-between;
}
.home_top dl dt img  {
    vertical-align: middle;
    padding: 0 20px 0 0;
}
.home_top dl dd {
    line-height: 70px;
}
.home_top dl dd a {
    text-decoration: none;
    color: #0B0C0D;
    font-size: 16px;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 5px;
}
.home_top dl dd a:hover {
    background: #F5F5F5;
}

.banner_img {
    height: 500px;
    background: #000000;
    overflow: hidden;
}
.banner_img span {
    display: block;
    margin: center;
    height: 100%;
    background: url('./banner_img.png') center center no-repeat #000000;
    width: 100%;
    background-size: cover;
}
.home_container {
    width: 1000px;
    margin: 0 auto;
}
.home_container h2 {
    text-align: center;
    margin: 100px auto 70px auto;
    color: #191A1B;
    font-size: 42px;
    font-weight: normal;
}
.home_container_p {
    color: #999;
    font-size: 26px;
    text-align: center;
    width: 930px;
    margin: 0 auto 70px auto;
}
.home_container_p span { color: #333;}
.test1, .test2 {
    font-weight: bold;
    font-size: 60px;
    color: #666;
}
.test2 {color: #191A1B;}
.home_container_box { display: flex; margin: 50px 0 20px 0; }
.home_container_box dl { margin: 0 30px 0 0;background: #fff; box-shadow: 0 2px 10px #dbdbdb; width: 45%; padding: 50px 40px; border-radius: 5px;}
.home_container_box dl dt h3  {
    font-size: 22px;
    color: #666;
}
.container_box_p {
    color: #5E3DBD;
    font-size: 40px;
    font-weight: bold;
    margin: 20px 0;
}
.box_p {
    color: #191A1B;
    font-size: 20px;
    line-height: 32px;
}
.action_p {
    font-size: 20px;
    color: #666;
}
.business_introduction {
    background: url('./bg_ref.png') repeat-x;
    min-height: 700px;
    margin: 100px 0;
    padding-bottom: 100px;
}
.business_container {
    width: 1000px;
    margin: 0 auto;
}
.business_container_h3 {
    text-align: center;
    font-size: 52px;
    color: #191A1B;
    padding: 120px 0;
}
.business_container_dl {
    display: block;
    width: 1000px;
    margin: 0 auto;
}
.business_container_dl dt {
    display: block;
    position: relative;
}
.business_container_dl dt h2 { 
    color: #0B2744;
    font-size: 50px;
}
.business_container_dl dt h2 p {
    line-height: 60px;
}
.business_container_dl dt h3 {
    position: absolute;
    right: 0;
    font-size: 16px;
    color: #666;
    bottom: 20px;
    font-weight: normal;
    text-align: right;
}
.business_container_dl dd {
    margin: 30px 0 50px 0;
    display: flex;
    justify-content: space-between;
}
.business_container_dl dd div {
}
.business_container_dl dd h3 {
    color: #3461B3;
    font-size: 40px;
    font-weight: normal;
    padding: 0 0 20px 0;
}
.business_container_dl dd p {
    color: #191A1B;
    font-size: 20px;
    line-height: 1.8;
    font-weight: normal;
}   

.about_box {
    width: 1000px;
    margin: 0 auto;
    position: relative;
    padding: 0 0 100px 520px;
    box-sizing: border-box;
}
.about_box_left {
    position: absolute;
    left: 0;
    top: 0;
    width: 520px;
    text-align: center;
}
.about_box_left h3 {
    color: #7B7B7B;
    font-size: 40px;
    text-align: left;
    text-indent: 120px;
}
.about_box_left p {
    color: #191A1B;
    font-size: 30px;
}
.about_box_right {
    line-height: 1.8;
    color: #666666;
    font-size: 18px;
}
.about_box_right p {
    margin: 0 0 20px 0;
}
.about_box_right span {
    color: #191A1B;
}
.contact_box {
    display: block;
    background: #F7F7F7;
    text-align: center;
    padding: 100px 0 50px 0;
}
.contact_box h3 {
    color: #191A1B;
    font-size: 50px;
    padding: 0 0 50px 0;
}
.contact_box p {
    line-height: 1.8;
    color: #333;
    font-size: 20px;
}
.contact_img {
    display: block;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 50px 0 0 0;
}
.footer {
    background: #fff;
    padding: 50px 0;
}
.footer_box {
    width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}