/* 关于我们 */
.about {
    height: 1980px;
    /* height: 3300px; */
    background-color: #f1ebeb;
}
.about-c {
    width: 1400PX;
    margin: 0 auto;

}
.about-c .nav2 {
    display: flex;
    width: 1400px;
    justify-content: space-evenly;
    margin-top: -50px;
}
.about-c .nav2 li {
    width: 33%;
    background-color: #222222;
    text-align: center;
    height: 100px;
    line-height: 100px;
}
.about-c .nav2 .show{
    background-color: #e37518;
}
.about-c .nav2 li a{
    display: block;
    color: white;
    width: 100%;
    font-size: 26px;
}
.about-c .nav2 li:nth-of-type(1) a{
    background: url(../images/nav21show.png) no-repeat;
    background-position: 133px 37px;
}

.about-c .nav2 li:nth-of-type(2) a{
    background: url(../images/nav22show.png) no-repeat;
    background-position: 133px 37px;
}
.about-c .nav2 li:nth-of-type(3) a{
    background: url(../images/nav23show.png) no-repeat;
    background-position: 133px 37px;
}

/* 找到第一个li 当他的类名为show时 */
.about-c .nav2 li:nth-of-type(1).show a{
    background: url(../images/nav21.png) no-repeat;
    background-position: 133px 37px;
}

.about-c .nav2 li:nth-of-type(2).show a{
    background: url(../images/nav22.png) no-repeat;
    background-position: 133px 37px;
}
.about-c .nav2 li:nth-of-type(3).show a{
    background: url(../images/nav23.png) no-repeat;
    background-position: 133px 37px;
}



.about .about-c-w {
    text-align: center;
    margin-top: 120px;
}
.about .about-c-w h2 {
    color: #222222;
    font-size: 40px;
}
.about .about-c-w .fff {
    color: #fff;
    font-size: 38px;
    font-weight: bold;
    padding-bottom: 50px;
}
.about .about-c-w .cc {
    display: flex;
    flex-wrap: wrap;
    text-align: left;
}
.about .about-c-w .cc .wl{
    width: 50%;
}
.about .about-c-w .cc .wl img{
    margin-left: 30px;
}
.about .about-c-w .cc .wr{
    width: 50%;
    padding-top: 80px;
}
.about .about-c-w .cc .wr .w{
    font-size: 20px;
    color: #e37518;
    font-weight: bold;  
}
.about .about-c-w .cc .wr .c{
    font-size: 20px;
    color: #222222;
    font-weight: bold;  
    margin-top: 35px;
    margin-bottom: 30px;
}
.about .about-c-w .cc .wr .Bar {
    width: 32px;
    height: 6px;
    background-color: #222222;
    margin-bottom: 55px;
}
.about .about-c-w .cc .wr .s {
    color: #666666;
    line-height: 32px;
}
.about .about-c-w .cc .sl{
    width: 50%;
    height: 175px;
    background-color: #dee2ea; /* 不支持线性的时候显示 */
    background-image: linear-gradient(to right, #dee2ea , #fdfefe);
    padding: 35px;
    box-sizing: border-box;
}
.about .about-c-w .cc .sl h4{
    font-size: 20px;
    color: #222222;
}
.about .about-c-w .cc .sl p{
    color: #666666;
    line-height: 25px;
    margin-top: 15px;
}


/* 海莎概况 */
.about .overview {
    text-align: center;
    margin-top: 120px;
}
.about .overview h2 {
    color: #222222;
    font-size: 40px;
}
.about .overview .fff {
    color: #fff;
    font-size: 38px;
    font-weight: bold;
    padding-bottom: 50px;
}
.about .overview .cc {
    display: flex;
}
.about .overview .cc .imgdiv{
    width: 50%;
}
.about .overview .cc .imgdiv img{
    width: 100%;
}
.about .overview .cc .r {
    height: 420px;
    width: 55%;
    background-color: #fff;
    margin-left: -80px;
    margin-top: 60px;
    padding: 47px;
    box-sizing: border-box;
}
.about .overview .cc .r .w {
    font-weight: bold;
    color: #222222;
    font-size: 17px;
    margin-bottom: 20px;
}
.about .overview .cc .r p {
    text-align: left;
    color: #666666;
    line-height: 30px;
}






/* 适应1200-1400的屏幕 */
@media screen and (min-width:1200px) and (max-width:1400px) {
    .about-c {
        width: 1200PX;
    }
    .about-c .nav2 {
        display: flex;
        width: 1200px;
        justify-content: space-evenly;
    }
    .about-c .nav2 li:nth-of-type(1) a{
        background: url(../images/nav21show.png) no-repeat;
        background-position: 106px 38px;
    }
    
    .about-c .nav2 li:nth-of-type(2) a{
        background: url(../images/nav22show.png) no-repeat;
        background-position: 106px 38px;
    }
    .about-c .nav2 li:nth-of-type(3) a{
        background: url(../images/nav23show.png) no-repeat;
        background-position: 106px 38px;
    }
    .about-c .nav2 li:nth-of-type(1).show a{
        background: url(../images/nav21.png) no-repeat;
        background-position: 106px 38px;
    }
    
    .about-c .nav2 li:nth-of-type(2).show a{
        background: url(../images/nav22.png) no-repeat;
        background-position: 106px 38px;
    }
    .about-c .nav2 li:nth-of-type(3).show a{
        background: url(../images/nav23.png) no-repeat;
        background-position: 106px 38px;
    }
    .about .about-c-w .cc .wl img{
        margin-left: 0px;
    }
    .about .overview .cc .r {
        padding: 22px;
        height: 367px;
        margin-top: 45px;
    }
    .about .overview .cc .r .w {
        font-size: 16px;
    }
    .about .overview .cc .r p {
        font-size: 15px;
        line-height: 27px;
    }
}



/* 手机端 */
@media screen and (max-width: 550px) {
    .about-c {
        width: 100%;
        margin: 0 auto;
    }
    .about-c .nav2 {
        width: 100%;
        position: relative;
        z-index: 30;
        margin-top: -31px;
    }
    .about-c .nav2 li:nth-of-type(1).show a {
        background: url(../images/nav21.png) no-repeat;
        background-position: 233px 37px;
    }
    .about-c .nav2 li:nth-of-type(1) a {
        background: url(../images/nav21show.png) no-repeat;
        background-position: 233px 37px;
    }
    .about-c .nav2 li:nth-of-type(2).show a {
        background: url(../images/nav21.png) no-repeat;
        background-position: 233px 37px;
    }
    .about-c .nav2 li:nth-of-type(2) a {
        background: url(../images/nav21show.png) no-repeat;
        background-position: 233px 37px;
    }
    .about-c .nav2 li:nth-of-type(3).show a {
        background: url(../images/nav21.png) no-repeat;
        background-position: 233px 37px;
    }
    .about-c .nav2 li:nth-of-type(3) a {
        background: url(../images/nav21show.png) no-repeat;
        background-position: 233px 37px;
    }
    .about-c .nav2 li a {
        font-size: 20px;
    }
    .about-c .nav2 li {
        height: 60px;
        line-height: 60px;
        width: 31%;
    }
    .about .about-c-w {
        text-align: center;
        margin-top: 60px;
    }
    .about .about-c-w h2 {
        font-size: 30px;
    }
    .about .about-c-w .fff {
        font-size: 28px;
    }
    .about .about-c-w .cc {
        display: flex;
        flex-wrap: wrap;
        text-align: left;
        padding: 0 10px;
        box-sizing: border-box;
    }
    .about .about-c-w .cc .wl {
        width: 100%;
        /* padding: 0 10px;
        box-sizing: border-box; */
    }
    .about .about-c-w .cc .wl img {
        margin-left: 0px;
        width: 100%;
    }
    .about .about-c-w .cc .wr {
        width: 100%;
        padding-top: 80px;
        /* padding: 0 10px;
        box-sizing: border-box; */
    }
    .about .about-c-w .cc .sl {
        width: 100%;
        margin: 13px 0;
        padding: 10px;
    }
    .about .overview h2 {
        font-size: 30px;
    }
    .about .overview .fff {
        font-size: 28px;
    }
    .about .overview .cc {
        display: flex;
        flex-wrap: wrap;
        padding: 0 5px;
    }
    .about .overview .cc .imgdiv {
        width: 100%;
    }
    .about .overview .cc .r {
        width: 100%;
        margin-left: 0px;
        margin-top: 0px;
        padding: 47px;
        height: auto;
    }
    .about .overview {
        margin-top: 65px;
    }
}