article section {
    padding: 100px 0;
}

article .product-box2 {
    text-align: center;
    margin: 0 auto;
    width: 90%;
}

article .pro-flex {
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

article .main1-width {
    width: 58%;
    padding: 0 5%;
}

article h1,
article h4 {
    font-size: 40px;
}

article h1,
article h4,
article span,
.casebg h4,
.casebg span {
    color: #bc1717;
    text-align: center;
    text-transform: uppercase;
}

article h1+span,
article h4+span {
    font-weight: 200;
    display: block;
}

article h1+span,
.casebg span {
    font-size: 24px;
    margin-top: 10px;
}

article h4+span {
    font-size: 16px;
    margin-top: 27px;
    margin-bottom: 42px;
}

article p {
    font-size: 22px;
    font-weight: 200;
    color: #4c4b4b;
    line-height: 37px;
    letter-spacing: 3px;
    text-align: center;
}

article .main1-width>p {
    text-indent: 2.3em;
    margin: 10% auto;
    text-align:left;
}

article .ico-flex {
    display: flex;
    justify-content: space-evenly;
    margin-top:50px;
}

article .title_xian {
    width: 80px;
    height: 2px;
    background: #bc1717;
    margin: 0 auto 46px;
}

article .iframe {
    width: 80%;
    height: 60vh;
    border: none;
    overflow: hidden;
    display: block;
    margin: 0 auto;
}

.part-color *{color:white;}
.part-color .title_xian{background:white;}

/* 产品专题页案例轮播 */
.casebg {
    background: #fff;
}
.sg-center {
        padding: 0 15%;
}
.banner2 {
    width: 100%;
    height: 40vw;
    position: relative;
    /* border: 1px solid red; */
    margin: 50px auto 0;
}

.banner2 .wrap {
    width: 100%;
}

.banner2 .wrap .item {
    width: 100%;
}

.item img {
    width: 100%;
    height: 100%;
    vertical-align: top;
    position: absolute;
}

.div1 {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translatey(-50%);
    cursor: pointer;
    width: 41px;
    height: 69px;
    font-size: 30px;
    line-height: 70px;
    text-align: center;
    color: #D6D8D4;
    background-color: rgba(0, 0, 0, 0.3);
}

.div2 {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translatey(-50%);
    cursor: pointer;
    width: 41px;
    height: 69px;
    font-size: 30px;
    line-height: 70px;
    text-align: center;
    color: #D6D8D4;
    background-color: rgba(0, 0, 0, 0.3);
}

.pagenation {
    position: absolute;
    /* border: 1px solid red; */
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    bottom: 40px;
}

.pagenation>div {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: white;
    margin-right: 10px;
    cursor: pointer;
}

.pagenation>div:last-child {
    margin-right: 0;
}
/* 案例轮播结束 */

@media (max-width: 800px) {
    .wap img {width: 100%;}

    .huaselunbo {
        height: 400px;
        overflow: hidden;
    }

     article .iframe {
        height: 100vw;
        width: 100vw;
    }
    article section{padding:50px 0;}
    article h4{font-size:25px;}
    .casebg {background: #f8f8f8;}
    .banner2 {
        width: 100%;
        position: relative;
        margin: 30px auto 0;
    }
}

@media (min-width: 1500px) {
    .pro-flex,.product-box2 {width: 80%;}
    article .main1-width {padding: 0 10%;}
}