.banner {
    width: 100%;
    height: 848px;
    margin-top: 85px;
    /* background: url('https://school-resource-file.oss-cn-beijing.aliyuncs.com/web/img/scheme/banner.jpg') no-repeat center; */
}

.second_box {
    background: url('https://school-resource-file.oss-cn-beijing.aliyuncs.com/web/img/scheme/second-bg.png') no-repeat center;
}

.second_box .line {
    display: block;
    margin: 0 auto;
}

.second_content {
    width: 1348px;
    display: flex;
    margin: 100px 0;
    position: relative;
    left: 50%;
    transform: translatex(-50%)
}

.second_content_right_box i {
    margin-right: 10px;
}

.second_content .title {
    font-family: 'SourceHanSansCN-Bold', sans-serif;
    color: #000000;
    font-size: 40px;
    display: inline-block;
    vertical-align: top;
    line-height: 54px;
    font-weight: bold;

}

.second_content .title2 {
    font-family: 'SourceHanSansCN-Mediu', sans-serif;
    color: #0066D4;
    font-size: 24px;
    font-weight: 500;
}

.second_content p {
    font-family: 'SourceHanSansCN-Regul', sans-serif;
    color: #000000;
    font-size: 22px;
    line-height: 40px;
    font-weight: 400;
}

.second_content_right_box {
    margin-left: 100px;
}

.second_content_right_box2 {
    margin-right: 100px;
}

.second_content_right_box2 i {
    margin-right: 10px;
}

.second_content .title {}

.second_content .title2 {
    display: inline-block;
    margin: 20px 0 30px 0;
    line-height: 30px;
}

/* 居中 */
.line_box {
    display: block;
    margin: 0 auto;
    width: 1348px;
}

.line_box img {
    width: 1348px;
    margin-bottom: 100px;
}

.three_box .center {
    display: block;
    margin: 0 auto;
    width: 1348px;
}

.three_box .padding100 {
    padding: 100px 0;
}

.three_box .paddingBottom {
    padding-bottom: 100px;
}