.whole{
    background: #F5F5F5;
}
/*banner start*/
/*.banner {*/
/*    width: 100%;*/
/*    !*height: 300px;*!*/
/*    margin-top: 80px;*/
/*    position: relative;*/
/*}*/

/*.title {*/
/*    width: 100%;*/
/*    text-align: center;*/
/*    position: absolute;*/
/*    top: 77px;*/
/*    z-index: 99;*/
/*    margin-bottom: 0;*/
/*}*/

.title-center {
    color: #FFFFFF;
}

.banner-img-box {
    position: relative;
    overflow: hidden;
    height: 100%;
}

.banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.problem-box {
    width: 100%;
    margin: 0 0 120px;
    position: relative;
    z-index: 99;
}

.problem {
    width: 1200px;
    margin: 0 auto;
    padding: 0;
}

.problem-ul {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
}

.problem-li {
    width: 100%;
    padding: 30px;
    margin-bottom: 20px;
    background: #FFFFFF;
}
.problem-li:last-child{
    margin-bottom: 0;
}
.problem-li-row{
    display: flex;
    align-items: flex-end;
}
.problem-li-icon {
    width: 60px;
    height: 60px;
}

.problem-li-title {
    font-weight: 600;
    font-size: 20px;
    color: #FF702B;
    line-height: 28px;
    text-align: left;
    margin-left: 20px;
    width: 100%;
    padding-bottom: 16px;
    border-bottom: 1px solid #FF702B;
}

.problem-li-text {
    font-weight: 400;
    font-size: 14px;
    color: #333333;
    line-height: 20px;
    margin-left: 80px;
    margin-top: 23px;
    text-align: left;
}
.problem-text-box{
    margin-left: 100px;
    margin-top: 10px;
 }
.problem-li-tit{
    font-weight: 400;
    font-size: 14px;
    color: #333333;
    line-height: 20px;
    /*margin-left: 100px;*/
    margin-top: 23px;
    text-align: left;
}
.problem-row-title{
    font-weight: 600;
    font-size: 16px;
    color: #333333;
    line-height: 32px;
    text-align: left;
}
.problem-li-txt {
    display: flex;
    align-items: flex-start;
    margin-bottom: 5px;
}

.problem-li-round {
    width: 6px;
    height: 6px;
    border-radius: 25px;
    background: #FF702B;
    margin-top: 10px;
}

.problem-row-text {
    font-weight: 400;
    font-size: 14px;
    color: #666666;
    line-height: 24px;
    margin-left: 16px;
    text-align: left;
    width: 100%;
}
.text2{
    font-weight: 600;
    font-size: 16px;
    color: #333333;
    line-height: 24px;
    margin-left: 0;
    text-align: left;
}

@media screen and (min-width: 768px) and (max-width: 1280px){
    .problem-box{
        /*margin: 0 0 80px;*/
    }
    .problem {
        width: 100%;
        padding: 0 48px;
        margin: 0;
    }
    .problem-li-title {
        margin-left: 24px;
    }
    .problem-li-text {
        line-height: 24px;
        margin-left: 84px;
        margin-top: 20px;
    }
    .problem-li-round {
        margin-top: 8px;
    }
}
/*手机端*/
@media screen and (min-width: 375px) and (max-width: 768px){
    .banner {
        margin-top: 44px;
        /*height: 150px;*/
    }
    .title{
        /*top: 47px;*/
    }
    .problem-box{
        margin: 0 0 60px;
    }
    .problem {
        width: 100%;
        padding: 0 20px;
        margin: 0;
    }
    .problem-li{
        padding: 20px;
    }
    .problem-li-row{
        flex-direction: column;
        align-items: flex-start;
    }
    .problem-text-box{
        margin-left: 0px;
    }
    /*.problem-text-box2{*/
    /*    margin-left: 20px;*/
    /*}*/
    .problem-li-title {
        margin-left: 0;
        padding: 12px 0;
        font-size: 18px;
        line-height: 26px;
    }
    .problem-li-icon{
        width: 40px;
        height: 40px;
    }
    .problem-li-text {
        line-height: 24px;
        margin-left: 0;
        margin-top: 16px;
    }
    .problem-li-round{
        margin-top: 9px;
    }
}