#mb {
    background-color: #EEEFF1;
}

.serveIT_mb_section1 {
    width: 100%;
    height: 37.33vw;
    background: url(https://files.yidatec.com/img/mob/serveIT/bg.png) no-repeat;
    background-size: 100% 100%;
    box-sizing: border-box;
    margin-top: 15.7vw;
    padding: 6.4vw;
}

.serveIT_mb_section1 p:nth-child(1) {
    width: 100%;
    text-align: center;
    font-size: 4vw;
    font-weight: 400;
    color: #FFFFFF;
}

.serveIT_mb_section1 .serveIT_mb_section1_line {
    width: 13vw;
    height: 0.5vw;
    background: #FFFFFF;
    margin: 4vw auto;
}

.serveIT_mb_section2 {
    width: 100%;
    height: auto;
    box-sizing: border-box;
    padding: 6.9vw 6.5vw;
    background: url(https://files.yidatec.com/img/mob/serveEpiboly/bg.png) no-repeat;
    background-size: 61.3vw 44.26vw;
    background-position-x: right;
    background-position-y: top;
    position: relative;
}

.serveIT_mb_section2_card {
    height: auto;
    background-color: #FFFFFF;
    margin-top: -20vw;
    border-radius: 0.8vw;
    box-sizing: border-box;
    padding: 5.3vw 4.8vw;
}

.serveIT_mb_section2_card p:nth-child(3) {
    font-size: 2.93vw;
    font-weight: 400;
    color: #040404;
    line-height: 5vw;
    margin-bottom: 5.6vw;
}

.serveIT_mb_section2_card_list {
    width: 100%;
    /* height: 24vw; */
    background: #F6F8FE;
    border-radius: 0.8vw;
    box-sizing: border-box;
    padding: 3.4vw 4.2vw;
    margin-bottom: 2.6vw;
}

.serveIT_mb_section2_card_list_top {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 2.2vw;
}

.serveIT_mb_section2_card_list_top img {
    width: 3.46vw;
    height: 3.46vw;
    margin-right: 1.86vw;
}

.serveIT_mb_section2_card_list_top p {
    font-size: 3.46vw;
    font-weight: 400;
    color: #000000;
}

.serveIT_mb_section2_card_list_type {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
}

.serveIT_mb_section2_card_list_type div {
    font-size: 2.4vw;
    margin-right: 2vw;
    font-weight: 400;
    color: #393939;
    line-height: 5.3vw;
}

.serveIT_mb_section3 {
    width: 100%;
    height: auto;
    box-sizing: border-box;
    padding: 0 6.5vw 6.9vw 6.5vw;
}

.serveIT_mb_section4 {
    width: 100%;
    height: auto;
    box-sizing: border-box;
    padding: 0 6.5vw 6.9vw 6.5vw;
}

.serveIT_mb_section4_list1 {
    width: 100%;
    height: 17.86vw;
    background: url(https://files.yidatec.com/img/mob/serveIT/bg1.png) no-repeat;
    background-size: 100% 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    padding: 0 5.8vw;
    margin-bottom: 2.93vw;
}
.serveIT_mb_section4_list2 {
    width: 100%;
    height: 17.86vw;
    background: url(https://files.yidatec.com/img/mob/serveIT/bg2.png) no-repeat;
    background-size: 100% 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    padding: 0 5.8vw;
    margin-bottom: 2.93vw;
}
.serveIT_mb_section4_list3 {
    width: 100%;
    height: 17.86vw;
    background: url(https://files.yidatec.com/img/mob/serveIT/bg3.png) no-repeat;
    background-size: 100% 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    padding: 0 5.8vw;
    margin-bottom: 2.93vw;
}

.serveIT_mb_section4_box {
    display: flex;
    justify-content: flex-start;
}

.serveIT_mb_section4_box img {
    width: 5.6vw;
    height: 5.6vw;
    margin-right: 3.4vw;
}

.serveIT_mb_section4_box p {
    font-size: 4vw;
    font-weight: 400;
    color: #FFFFFF;
}

.serveIT_mb_section4_detail {
    width: 100%;
    box-sizing: border-box;
    padding: 5.8vw 2.9vw;
    background: #FFFFFF;
    font-size: 2.93vw;
    font-weight: 400;
    color: #000000;
    line-height: 5.06vw;
    display: none;
}