.banner{
    width: 100%;
    min-width: 1200px;
    position: relative;
    margin:0 auto;
    overflow: hidden;

}
.lbt{

    width: 1200px;
    height: 418px;
    margin: 0 auto;
    position: relative;
    /* background: turquoise; */
}
.lbt-w1920{
    width: 1920px;
    position: absolute;
    left: 50%;
    margin-left: -960px;
    height: 418px;
    overflow: hidden;
}
.lbt .lbt-text{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    /* z-index: ; */
    background-image: url(../imger/lbt-text.png);
}
.lbt .lbt-text>div{
    width: 1200px;
    height: 60px;
    margin: 0 auto;
}

.lbt .lbt-text .lbt-bt{
    margin-top: 21px;
}
.lbt .lbt-text .lbt-bt i{
    display: block;
    width: 20px;
    height: 20px;
    background: url(../imger/lbt-bt.png) no-repeat center;
}
.lbt .lbt-text .lbt-bt .on{
    background: url(../imger/lbt-bt-hover.png) no-repeat center;
}
.lbt .blt-ul>li{
   position: relative;
}
.blt-ul .lbt-h2{
    width: 1000px;
    line-height: 60px;
    color: #ffffff;
    font-size: 24px;
    font-weight: bold;
    position: absolute;
    bottom: 0;
    left: 360px;
    z-index: 1;
    animation: lbtText 1s;
}
.lbt-inside{
    width: 1000px;
    line-height: 60px;
    color: #ffffff;
    font-size: 24px;
    font-weight: bold;
}
.logo-text{
    color: #161f2f;
    font-size: 56px;
    position: absolute;
    left: 460px;
    top: 96px;
    font-weight: bold;
    width: 1000px;
}