.banner{overflow:hidden; }.banner .slider{padding-top:124px;min-height:950px;padding-bottom:40px;position:relative;z-index:2}.banner .slider:after{content:"";position:absolute;top:124px;left:0;bottom:0;width:100%;background-size:cover;z-index:-1}.banner .slider.slider-1{background-size:cover}.banner .slider.slider-2{background-size:cover}.banner .slider.slider-3{background-size:cover}.banner .slider .banner-txt{padding:180px 0}.banner .slider .banner-txt h1{font-size:40px;line-height:70px;font-weight:700;color:#fff;margin-top:-7px;margin-bottom:15px}.banner .slider .banner-txt h1 span{color:#f45905}.banner .slider .banner-txt p{font-size:16px;line-height:38px;font-weight:500;color:#fff;margin-bottom:36px}.banner .owl-dots{position:relative; text-align: center;width:1200px;padding:0 15px;margin:-122px auto 98px;z-index:3}.banner .owl-dots .owl-dot{width:12px;height:12px;background:#d30000;border-radius:50%;margin-right:15px}.banner .owl-dots .owl-dot:last-child{margin-right:0}.banner .owl-dots .owl-dot.active{background:#fff}.banner-2{background-size:cover;position:relative;z-index:2}.banner-2:after{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-size:cover;z-index:-1}.banner-2 .banner-txt{padding:240px 0}.banner-2 .banner-txt h1{font-size:60px;line-height:70px;font-weight:700;color:#fff;margin-top:-8px;margin-bottom:15px}.banner-2 .banner-txt h1 span{color:#f45905}.banner-2 .banner-txt p{font-size:20px;line-height:38px;font-weight:500;color:#fff;margin-bottom:31px}
.banner-txt a {
    display: inline-block;
    text-decoration: none;
    color: #FFF;
    font-size: 18px;
    font-weight: 500;
    background: #e81b05;
    padding: 14px 28px;
    border-radius: 3px;
    position: relative;
    z-index: 1;
    overflow: hidden;
    transition: .5s;
}

.banner-txt a:hover{
    color: #e81b05;
}

.banner-txt a::before{
    position: absolute;
    content: "";
    transition-duration: 800ms;
    position: absolute;
    width: 200%;
    height: 200%;
    background: #fff;
    content: "";
    top: 110%;
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
    border-radius: 50%;
    z-index: -1;
}

.banner-txt a:hover::before{
    top: -40%;
}