.banner{
    width: 100%;
    height: 400px;
    position: relative;
    overflow: hidden;
}
.banner-img {
    width: 110%;
    height: 450px;
    margin-left: -5%;
    margin-top: -25px;
}
.out {
    text-align: center;
    position: absolute;
    left: 50%;
    top: 50%;
    color: #F9F9FD;
    font-size: 32px;
    width: 520px;
    height: 50px;
    line-height: 50px;
    margin-left: -260px;
    margin-top: -25px;
}
.add_transform{
    transform:scale(0.91,0.89);
    -ms-transform:scale(0.91,0.89);
    -moz-transform:scale(0.91,0.89);
    -webkit-transform:scale(0.91,0.89);
    -o-transform:scale(0.91,0.89);
    transition:all 1.5s ease-in-out;
    -moz-transition:all 1.5s ease-in-out;
    -webkit-transition:all 1.5s ease-in-out;
    -o-transition:all 1.5s ease-in-out;
}
.product-introduce {
    width: 100%;
    height: 520px;
    font-size: 16px;
    color: #333333;
}
.product-introduce-inner {
    width: 1200px;
    height: 520px;
    margin:auto;
    display: flex;
    align-items: center;
}
.dec{
    text-indent:2em;
    line-height: 1.8;
}
.product-introduce-left,.product-introduce-part-right {
    width: 600px;
    float: left;
}
.product-introduce-right,.product-introduce-part-left{
    width: 520px;
    float: left;
}
.product-introduce-left,.product-introduce-part-left {
    margin-right: 80px;
}
.product-introduce-part-right{
    text-align: right;
}
.product-introduce-part1 {
    background: url("../image/img-xibg.png") no-repeat;
    background-size: 100% 100%;
}
.product-introduce-part-left {
    text-align: right;
}
.dec-title {
    width: 100%;
    text-align: center;
    color:#5E75E6 ;
    font-size: 24px;
    margin-bottom: 30px;
}
.dec-text{
    text-align: left;
    
    line-height: 1.8;
}
.product-introduce-part3 {
    background: url("../image/0A-BG.png") no-repeat;
    background-size: 100% 100%;
}
.product-introduce-part5 {
    background: url("../image/iphone-bg.png") no-repeat;
    background-size: 100% 100%;
}