.banner {
    width: 100%;
    height: 400px;
    background: url("../img/problem_one_banner_02.jpg") no-repeat top center;
    overflow: hidden;
    position: relative;
}

.banner_div {
    width: 1200px;
    height: 100%;
    overflow: hidden;
    margin: 0 auto;
}

.banner_div_h4 {
    font-size: 30px;
    color: #fff;
    margin: 10% 0 2% 0;
    font-weight: normal;
}

.banner_div_p {
    font-size: 18px;
    color: #fff;
    padding-right: 100px;
}

.section {
    width: 100%;
    height: 656px;
    background: url("../img/problem_one_one_02.jpg") no-repeat top center;
    overflow: hidden;
    position: relative;
    line-height: 36px;

}

.section_div {
    width: 1200px;
    overflow: hidden;
    position: relative;
    margin: 0 auto;
}

.section_img_one {
    display: block;
    float: left;
}

.section_div_right {
    margin-top: 250px;
    width: 488px;
    float: right;
    text-align: left;
    color: #333333;
    font-size: 18px;
    line-height: 36px;
}

.section_div_left {
    margin-top: 250px;
    width: 488px;
    float: left;
    text-align: left;
    color: #333333;
    font-size: 18px;

}

.section_div_right_p {
    font-size: 40px;
    color: #2094e6;
    margin-bottom: 40px;
}

.section_div_right_p2 {
    font-size: 40px;
    color: #2094e6;
    margin-bottom: 40px;
    padding-right: 80px;
    line-height: 56px;
}
.section_div_right_p3{
    font-size: 40px;
    color: #2094e6;
    margin-bottom: 40px;
    padding-right: 120px;
    line-height: 56px;
}
.section_div_right_p4{
    font-size: 40px;
    color: #2094e6;
    margin-bottom: 40px;
    padding-right: 80px;
    line-height: 56px;
}
.section_div_right_two{
    width: 478px;
}

.section2 {
    background: url("../img/problem_one_two_03.jpg") no-repeat top center;
}

.section3 {
    background: url("../img/problem_one_three_04.png") no-repeat top center;
}
.section4{
    background: url("../img/problem_one_four_05.png") no-repeat top center;
}
.section5{
    background: url("../img/problem_one_fixe_06.jpg") no-repeat top center;
}
.section6{
    background: url("../img/problem_one_six_07.jpg") no-repeat top center;
}
.section7{
    background: url("../img/problem_one_seven_08.jpg") no-repeat top center;
}