.w1100{width:1200px;margin:0 auto;height:100%}
.solution-container {

    padding: 70px 0
}

.solution-container .solutions-expo {
    display: -ms-flexbox;
    display: flex
}

.solution-container .solutions-expo .solution-item {
    background: #3c2f5a;
    width: 210px;
    height: 480px;
    -webkit-transition: all .3s ease;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative
}

.solution-container .solutions-expo .solution-item .first-page {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 100%;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: center;
    justify-content: center
}

.solution-container .solutions-expo .solution-item .first-page .first-page-content {
    font-family: PingFangSC-Regular;
    font-size: 18px;
    color: #fff;
    letter-spacing: 0;
    text-align: center;
    position: absolute;
    top: 336px;
    z-index: 2
}

.solution-container .solutions-expo .solution-item .first-page .first-page-content p {
    margin-top: 20px
}

.solution-container .solutions-expo .solution-item .second-page {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
    width: 100%;
    height: 100%;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: center;
    justify-content: center
}

.solution-container .solutions-expo .solution-item .second-page .solution-card {
    width: 300px;
    height: 240px;
    background: #0a3a97;
    position: absolute;
    bottom: 20px;
    padding: 20px;
    color: #fff
}

.solution-container .solutions-expo .solution-item .second-page .solution-card a {
    font-family: PingFangSC-Regular;
    font-size: 12px;
    color: #fff;
    letter-spacing: 0;
    position: absolute;
    right: 20px;
    height: 30px
}

.solution-container .solutions-expo .solution-item .mask {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, .3);
    z-index: 1
}

.solution-container .solutions-expo .solution-item.active {
    width: 340px
}

.solution-container .solutions-expo .solution-item.active .first-page {
    opacity: 0
}

.solution-container .solutions-expo .solution-item.active .second-page {
    opacity: 1
}

.solution-container .solutions-expo .solution-item.active .mask {
    display: none
}

.solution-container .word-index {
    z-index: 2;
    position: relative
}

.solution-container .background-index {
    position: absolute;
    right: 0;
    bottom: 0;
    z-index: 1
}

.m-regular-font{font-family:PingFangSC-Regular}