*{
    margin: 0;
    padding: 0;
}
.box{
    width: 65vw;
    height: 35vw;
    margin: 2.5vw auto;
    overflow: hidden;
    position: relative;
}
#informationwipper{
    width: 455vw;/*设置为图片的总宽度*/
    height: 35vw;
    position: absolute;
    left: 0;
}

#brandwipper{
    width: 455vw;/*设置为图片的总宽度*/
    height: 35vw;
    position: absolute;
    left: 0;
}
#copyrightwipper{
    width: 260vw;/*设置为图片的总宽度*/
    height: 35vw;
    position: absolute;
    left: 0;
}
.wipper div{
    width: 65vw;
    height: 35vw;
    float: left;
    text-align: center;
    font-size: 1.5vw;
    line-height: 15vw;
    color: #fff;
}

.wipper img{
    width: auto;
    height: 100%;

}
.pre,.next{
    width: 4vw;
    height: 4vw;
    line-height: 4vw;
    text-align: center;
    color: #b7c5ce;
    /*   background-color: rgba(0, 0, 0, 0.5);*/
    position: absolute;
    transform: translateY(-50%);
    cursor: pointer;
    display: none;
}
.box:hover .pre{
    display: block;
}
.box:hover .next{
    display: block;
}
.pre{
    left: 0;
    top: 50%;
}
.next{
    right: 0;
    top: 50%;
}
.lis{
    text-align: center;
    border-radius: 0.3vw;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}
.lis span{
    display: inline-block;
    width: 0.6vw;
    height: 0.6vw;
    border-radius: 50%;
    background-color: #ccc;
}
.lis span.current{
    background-color: #b7c5ce;

}
.font_icon{
    filter: drop-shadow(-0.1vw 0.1vw 0.1vw rgba(0, 0, 0, 0.8));
}

.introduce_word span{
    font-size: 16px;
    line-height: 32px;
    text-align: left;
    font-weight:500;
}

.introduce_word {
    width: 70%;
    color: #727272;
    display: inline-block;
    text-align: left
}
@media only screen and (max-width: 840px) {
    .introduce_word span {
        line-height: 20px;
        font-size: 12px;
    }
}
@media only screen and (max-width: 840px) {
    .introduce_word span {
        line-height: 20px;
        font-size: 12px;
    }
}
@media only screen and (max-width: 768px) {
    .introduce_word span {
        font-size: 9px;
    }
}