html,body{
    margin: 0;
    padding: 0;
    height: 100%;
}
.warp{
    width: 100%;
    overflow: hidden;
    /* height: 100% !important; */
    background: linear-gradient(rgb(22,138,252),rgb(11, 80, 172));
}
.top{ 
    width: 100%;
    height: 500px;
    background:no-repeat center url("../images/01.png");
    overflow: hidden;
    min-width: 1000px;
}
.baitiao{
    width: 100%;
    height: 40px;
    display: block;
    min-width: 1000px;
    filter: drop-shadow(0px 3px 3px rgb(217,223,255));
}
#imgbtn{
    width: 570px;
    filter: drop-shadow(2px 2px 5px rgb(246,122,33));
}
.box{
    width: 1000px;
    height: 100%;
    position: relative;
    margin: 50px auto 0;
}
.img1{
    width: 1000px;
    /* height: 100%; */
    display: block;
    margin: 50px auto 0;
}
.footer{
    width: 100%;
    height: 120px;
    line-height: 75px;
    text-align: center;
}
#img2{
    width: 300px;
}
.banner{
    width: 100%;
    height: 100%;
}
.banner img{
    width: 1000px;
    height: 100%;
    display: block;
    margin: 55px auto;
    filter:drop-shadow(8px 8px 10px rgb(0,77,160));
}
.banner img:nth-child(1){
    margin: 55px auto -15px;
}
.banner img:nth-child(6){
    filter:drop-shadow(8px 8px 10px rgb(5, 58, 116));
}
.banner img:nth-child(7){
    filter:drop-shadow(8px 8px 10px rgb(3, 42, 85));
}
.foot{
    width: 230px;
    position: fixed;
    top: 250px;
    right: 80px;
}
.i_m{
    width: 100%;
    height: 100%;
    object-fit: cover; 
    filter:drop-shadow(rgb(255, 255, 255) 0px 0px 3px);
}
#btn{
    display: none;
}
.free{
    width: 170px;
    height: 170px;
    display: block;
}
.wx_box{
    width: 170px;
    height: 230px;
    position: absolute;
    top: 177px;
    right: 48px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.imgzb{
    width: 160px;
    height: 30px;
    display: block;
}
.free2{
    width: 200px;
    height: 200px;
}
.wx_box2{
    width: 200px;
    height: 200px;
    position: absolute;
    top: 60px;
    left: 15px;
}
.btn {
    animation: scaleDrew 2s ease-in-out infinite;
}
.free_btn{
    height: 2.3rem;
}
@keyframes scaleDrew {
/* 定义关键帧、scaleDrew是需要绑定到选择器的关键帧名称 */
    0% {
        transform: scale(1);
    }

    25% {
        transform: scale(1.02);
    }

    50% {
        transform: scale(1);
    }

    75% {
        transform: scale(1.02);
    }
}