.sections{ width: 100%; position: relative;font-size: 0;background: #fff;}
.sections img{ display: block; max-width: 100%;line-height: 0;margin-top: -2px;}
.section{ width: 100%; position: relative;font-size: 0;}
.section{width: 100%;position: relative;}

.msections{ overflow: hidden;background: #fff;display: none;}
.msections {
    font-size: 0; /* 清除行内块元素间隙 */
}
.section {
    position: relative;
    margin: 0;
    padding: 0;
}
@media screen and (min-width:1921px) {
    .sections{width: 1920px;margin: 0 auto;overflow: hidden;}
}
@media screen and (max-width:800px) {
    .sections{display: none;}
    .msections {
        display: block;
        overflow: hidden;
        background: #fff;
    }
    .msections {
        font-size: 0; /* 清除行内块元素间隙 */
    }
    .msections img{
         width: 100%;
    }
    .section {
        position: relative;
        margin: 0;
        padding: 0;
        width: 100%;
    }
}