.banner {
    position: relative;
    width: 100%;
    height: 430px;
    overflow: hidden;
}
.banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.banner .mask{
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
}
.banner .mask .w {
    height: 100%;
    display: flex;
    flex-direction: center;
    justify-content: center;
    align-items: center;
}
.banner .mask h2{
    font-size: 40px;
    line-height: 50px;
    color: #fff;
    text-align: center;
    font-weight: bold;
}

/* 历史 */
.historynav {
    padding: 20px 0;
    height: auto;
    border-bottom: 1px solid #F1F2F4;   
}
.historynav .w {
    height: 100%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}
.historynav a {
    font-size: 16px;
    color: #666666;
    line-height: 30px;
}
.historynav  span {
    margin: 0 5px;  
}
.historynav a span {
    font-size: 18px;
}
.historynav a:hover {
    color: #C20A0A;
}

.secion {
    padding-top: 30px;
    padding-bottom: 70px;
}
.secion .pic {
    position: relative;
    height: 410px;
    overflow: hidden;
}
.secion .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.secion .pic .mask {
    position: absolute;
    right: 50px;
    top: 80px;
    bottom: 0px;
    width: 640px;
    background-color: #fff;
    overflow: hidden;
    padding: 30px;
}
.secion .pic .mask p {
    font-size: 24px;
    line-height: 44px;
    color: #1A1A1A;
}

.fwnrsection {
    background-image: url(../images/fwnrbg.png);
    background-size: cover;
    background-repeat: no-repeat;
    padding: 75px 0;
}
.fwnrsection h2 {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    font-weight: bold;
    color: #000000;
}
.fwnrsection h2::after {
    content: '';
    width: 64px;
    height: 4px;
    background-color: #C20A0A;
    margin-top: 30px;
}

.fwnr {
    margin-top: 60px;
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 创建4列，每列宽度相等 */  
    gap: 26px; /* 网格项之间的间隙，根据需要调整 */  
}
.fwnr .item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 268px;
    background-color: #fff;
}
.fwnr .item .pic {
    width: 90px;
    height: 80px;
    overflow: hidden;
}
.fwnr .item .pic img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.fwnr .item h4 {
    margin-top: 30px;
    text-align: center;
    font-size: 26px;
}

.fatssection {
    padding-top: 80px;
    padding-bottom: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.fatssection .pic {
    width: 532px;
    height: 547px;
}
.fatssection .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.fatssection .cont {
    flex: 1;
    margin-left: 90px;
}
.fatssection .cont h2 {
    display: flex;
    flex-direction: column;
    font-weight: bold;
    font-size: 40px;
    color: #000000;
}
.fatssection .cont h2::after{
    content: '';
    width: 64px;
    height: 4px;
    background-color: #C20A0A;
    margin-top: 30px;
}
.fatssection .cont .tsgrid {
    margin-top: 75px;
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 创建2列，每列宽度相等 */  
    gap: 22px;
}
.fatssection .cont .tsgrid .item {
    box-shadow: 0px 1px 27px 0px rgba(100,96,95,0.18);
    display: flex;
    align-items: center;
    padding: 0 20px;
    height: 124px;
}
.fatssection .cont .tsgrid .item .pic{
   width: 48px;
   height: 48px;
   overflow: hidden;
   margin-right: 20px;
}
.fatssection .cont .tsgrid .item .pic img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.fatssection .cont .tsgrid .item h4 {
    flex: 1;
    font-size: 26px;
    color: #1A1A1A;
}
.dxlxsecion {
    padding-top: 70px;
    padding-bottom: 90px;
    background-image: url(../images/dxlxsecionbg.png);
    background-size: cover;
    background-position: center;
}
.dxlxsecion h2 {
    font-size: 40px;
    font-weight: bold;
    text-align: center;
    color: #000000;
}
.dxlxsecion .pic {
    position: relative;
    margin-top: 90px;
    width: 100%;
    height: auto;
}
.dxlxsecion .pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}



@media only screen and (max-width: 768px) {

    .banner {height: 250px;}
    .banner .mask h2 {font-size: 20px;line-height: 30px;}
    .historynav {padding: 15px 0;}


    .secion {padding-top: 15px;padding-bottom: 35px;}
    .secion .pic {height: 205px;}
    .secion .pic .mask {right: 15px;width: calc(100% - 30px);padding: 15px;top: 40px;}
    .secion .pic .mask p {font-size: 12px;line-height: 24px;}

    .fwnrsection {padding: 30px 0;}
    .fwnrsection h2 {font-size: 20px;}
    .fwnrsection h2::after {width: 32px;height: 2px;margin-top: 15px;}
    .fwnr  {
        margin-top: 30px;
        grid-template-columns: repeat(2, 1fr); /* 创建4列，每列宽度相等 */  
        gap: 10px; /* 网格项之间的间隙，根据需要调整 */  
    }
    .fwnr .item {height: 134px;}
    .fwnr .item .pic {width: 45px;height: 40px;}
    .fwnr .item h4 {font-size: 14px;margin-top: 15px;}

    .fatssection {flex-direction: column;padding-top: 40px;padding-bottom: 35px;}
    .fatssection .pic {width: 100%;height: 270px;}
    .fatssection .cont {margin-top: 30px; margin-left: 0;width: 100%;}
    .fatssection .cont h2 {font-size: 20px;}
    .fatssection .cont h2::after {width: 32px;height: 2px;margin-top: 15px;}
    .fatssection .cont .tsgrid {margin-top: 30px;gap: 10px;}
    .fatssection .cont .tsgrid .item {padding: 0 10px; height: 60px;}
    .fatssection .cont .tsgrid .item .pic {height: 24px;width: 24px;margin-right: 10px;}
    .fatssection .cont .tsgrid .item h4 {font-size: 14px;}

    .dxlxsecion {padding-top: 35px;padding-bottom: 45px;}
    .dxlxsecion h2 {font-size: 20px;}
    .dxlxsecion .pic {height: 250px;margin-top: 45px;}


}