*{
    margin: 0;
    padding: 0;
    list-style: none;
}
/*背景*/
.txt-header{
    width: 100%;
    height: 550px;
    overflow: hidden;
    position: relative;
}
.txt-header>img{
    width: 100%;
    height: 100%;
}
.bg-transparent{
    margin: 0;
}
.header-box {
    width:100%;
    font-size: 60px;
    line-height: 190px;
    color: #fff;
    font-weight: bold;
    text-align: center;
    letter-spacing: 30px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-100%);
}
/*头部*/
.shuke{
    width: 100%;
    height: auto;
    padding: 30px 0;
    background: white;
}
.s-t{
    width: 30%;
    font-size: 18px;
    text-align: center;
    line-height: 50px;
    margin: auto;
    color: white;
    font-weight: 600;
    background-image: linear-gradient(to right,#EF1631,#F74730,#FE7530);
}
.s-c{
    width: 80%;
    margin: auto;
    font-size: 15px;
    line-height: 30px;
    padding: 20px 0;
}
.s-c>div{
    text-indent: 30px;
}
.s-c>.s-c-img{
    text-align: center;
    padding: 20px 0;
}
.s-c>.s-c-img>img{
    width: 30%;
    height: auto;
}
.bg-transparent{
    margin: 0;
}
@media screen and (max-width: 990px){
    .s-c>.s-c-img>img{
        width: 40%;
    }
    .txt-header{
        height: auto;
    }
    .header-box{
        font-size: 40px;
    }
}
@media screen and (max-width: 880px) {
    .s-t{
        width: 45%;
    }
    .s-c>.s-c-img>img{
        width: 50%;
    }
}
@media screen and (max-width: 768px) {
    .s-t{
        width: 55%;
    }
    .s-c>.s-c-img>img{
        width: 70%;
    }
    .header-box{
        font-size: 25px;
    }
}
@media screen and (max-width: 500px) {
    .s-t{
        width: 80%;
    }
    .s-c>.s-c-img>img{
        width: 90%;
    }
    .header-box{
        display: none;
    }
}