/* 小屏幕（手机、平板）  大于768 */
@media (max-width:768px) {

    /* 网页顶部 */
    .header {
        height: 70px;
    }

    .header .logo {
        width: 160px;
    }

    .header .max .u1 {
        position: absolute;
        left: 0;
        top: 70px;
        background-color: #fff;
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: center;
        padding-bottom: 30px;
    }

    .header .two {
        width: 100%;
        display: none;
    }

    .header .min {
        display: block;
    }

    .header .max>ul>span {
        display: none;
    }

    .header .max .u1 {
        flex-direction: column;
    }

    .header .max .u1>li {
        position: relative;
        width: 150px;
    }

    .header .max .u1>li>a {
        margin: 0 auto;
        text-align: center;
        display: flex;
        font-size: 15px;
        font-weight: bold;
        height: 50px;
        align-items: center;
    }

    .header .max .u3 {
        display: none;
        flex-direction: column;
        margin-left: 15px;
    }

    .header .max .u2>li>a {
        display: flex;
        align-items: center;
        color: #000;
    }

    .header .max .u2>li>a::before {
        display: block;
        content: '';
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background-color: #6b6b6b;
        margin-right: 10px;
    }

    .header .max .u2>li>a .iconfont {
        display: none;
    }

    .header .u2>li>a {
        font-size: 15px;
        padding: 10px 0;
        display: block;
        width: 150px;
    }

    .header .u3>li>a {
        display: block;
        font-size: 14px;
        padding: 10px 0;
        width: 150px;
    }

    .header .active-u3>a {
        color: #d43418;
    }

    /* 搜索遮罩层 */
    .ser-mask {
        top: 70px;
    }

    .header .in {
        top: 70px;
    }

    /* 网页底部 */
    .footer .max {
        max-width: 100%;
    }

    .footer .max .center {
        align-items: center;
    }

    .footer .flogo {
        width: 150px;
    }

    .footer .info .link {
        font-size: 14px;
    }

    .footer .info .address {
        font-size: 13px;
    }

    .footer .info .tel {
        font-size: 17px;
    }

    .footer .gzh img {
        width: 100px;
        height: 100px;
    }

    .footer .about dt {
        font-size: 14px;
    }

    .footer .about dl {
        flex-direction: column;
    }

    .footer .about dl>dd {
        font-size: 13px;
    }

}

/* 中等屏幕  大于768 */
@media (min-width:769px) {

    /* 网页顶部 */
    .header {
        height: 80px;
        /* background-color: #e1b7e2; */
    }

    .header .logo {
        width: 180px;
    }

    .header .min {
        display: none;
    }

    .header .max>ul>span {
        line-height: 80px;
    }

    .header .max .u1>li>.active-u1 {
        border-bottom: 3px solid #d43418;
    }

    .header .max .u1 {
        display: flex !important;
    }

    .header .two .hd-img {
        right: 100px;
        top: 30px;
    }

    .header .max .u2,
    .u3 {
        width: 220px;
        padding: 40px 0;
    }

    .header .u3 {
        left: 220px;
    }

    /* 搜索遮罩层 */
    .ser-mask {
        top: 80px;
    }

    .header .in {
        top: 80px;
    }

    /* 网页底部 */
    .footer .max {
        max-width: 1280px;
    }

    .footer .flogo {
        width: 180px;
    }

    .footer .info .link {
        font-size: 15px;
    }

    .footer .info .address {
        font-size: 12px;
    }

    .footer .info .tel {
        font-size: 20px;
    }

    .footer .gzh img {
        width: 120px;
        height: 120px;
    }

    .footer .about dt {
        font-size: 17px;
    }

    .footer .about dl>dd {
        font-size: 15px;
    }

    /* 二级菜单 */
    .header .max .two {
        display: none;
        position: absolute;
        top: 100%;
        background-color: #fff;
        left: 0;
        width: 100%;
        z-index: 20;
    }

    .header .max .u2 {
        background-color: #e6eaee94;
    }

    .header .max .u3 {
        background-color: #e6eaee;
    }

    .header .max .u2,
    .u3 {
        height: 100%;
        min-height: 300px;
    }

    .header .max .u2>li,
    .header .max .u3>li {
        width: 100%;
        box-sizing: content-box;
    }

    .header .max .u1>li>a {
        margin: 20px;
        padding-bottom: 5px;
    }

    .header .u2>li>a,
    .header .u3>li>a {
        position: relative;
        background-color: #e6eaee94;
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
        padding: 10px 30px 10px;
    }

    .header .u2>li>a>span:last-child {
        font-size: 12px;
    }

    .header .two {
        position: relative;
        font-size: 16px;
    }

    .header .two .hd-img {
        position: absolute;
        width: 350px;
        height: 250px;
    }

    .header .two .hd-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    /* 三级菜单 */
    .header .u3 {
        position: absolute;
        top: 0;
        display: none;
        flex-direction: column;
    }

    .header .u3>li>a>span:last-child {
        font-size: 12px;
    }

    .header .u2 .active-u2>a>span,
    .header .u3 .active-u3>a>span {
        display: flex;
        align-items: center;
    }

    .header .u2 .active-u2>a>span:first-child::before {
        display: block;
        content: '';
        width: 10px;
        height: 10px;
        background-color: #d43418;
        margin-right: 10px;
    }

    .header .u2 .active-u2>a {
        background-color: #e6eaee;
        font-weight: bold;
    }

    .header .u3.active {
        display: flex;
    }

    .header .u3 .active-u3>a {
        background-color: #e0e0e0;
        color: #d43418;
    }
}

@media (max-width:920px) {
    .header .two .hd-img {
        display: none;
    }
}

/* 大屏幕 大于1200 */
@media (min-width:1200px) {

    /* 网页顶部 */
    .header {
        height: 90px;
        /* background-color: #efc7bf; */
    }

    .header .logo {
        width: 200px;
    }

    .header .max>ul>span {
        margin: 0 35px;
        line-height: 90px;
    }

    .header .two .hd-img {
        top: 30px;
        right: 150px;
    }

    .header .max .u2,
    .u3 {
        width: 250px;
        padding: 50px 0;
    }

    .header .u3 {
        left: 250px;
    }


    /* 搜索遮罩层 */
    .ser-mask {
        top: 90px;
    }

    .header .in {
        top: 90px;
    }

    /* 网页底部 */
    .footer .info .link {
        font-size: 18px;
    }

    .footer .info .address {
        font-size: 15px;
    }

    .footer .info .tel {
        font-size: 25px;
    }

}


/*  头部  */
.header {
    position: relative;
    padding: 0 20px;
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 17px;
}

.header .max>ul {
    display: flex;
    align-items: center;
}

.header .max .u1>li>a {
    color: #333;
    padding-bottom: 5px;
}

.header .max .u1>li>.active-u1 {
    color: #d43418;
    border-radius: 2px;
}

.header .max .u1>li>a:hover {
    color: #d43418;
}

.header .max>ul>span {
    color: #999;
}

.header .right {
    display: flex;
    align-items: center;
}

.header .search>span {
    font-size: 25px;
    color: #d43418;
    margin: 0 20px;
}

.header .in {
    display: none;
    z-index: 20;
    height: 40px;
    width: 250px;
    position: absolute;
    right: 0;
    background-color: #fff;
    margin-right: 20px;
}

.header .in input {
    float: left;
    width: 200px;
    height: 30px;
    margin-top: 5px;
}

.header .in .icon-sousuo1 {
    float: left;
    line-height: 40px;
    width: 50px;
    height: 40px;
    text-align: center;
    height: 100%;
    font-size: 25px;
    color: #fff;
    background-color: #d43418;
}

.header .right .min1,
.min2 {
    width: 50px;
    height: 50px;
    background-color: #d434181a;
    border-radius: 10px;
    text-align: center;
    line-height: 32px;
    padding: 8px;
}

.header .right .min2 {
    display: none;
}

.header .right .min1 .icon-gengduo1,
.icon-quxiao {
    color: #d43418;
    font-size: 20px;
    font-weight: bold;
}


.header,
.right {
    z-index: 30;
}


.ser-mask {
    display: none;
    position: fixed;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10;
    background-color: transparent;
}


/* 尾部 */
.footer {
    margin-top: 100px;
    background-color: #ebebeb;
}

.footer .max {
    display: flex;
    flex-direction: column;
    margin: 0 auto;
    padding: 50px 20px;
}

.footer .max-w {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
}

.footer .max-w>div {
    margin-bottom: 40px;
}

.footer .end .line {
    width: 100%;
    height: 1px;
    background-color: #cecdcd;
}

.footer .end .ban {
    text-align: center;
    font-size: 14px;
    color: #5c5b5b;
    margin-top: 20px;
}

.footer .info {
    flex-grow: 1;
    display: flex;
    justify-content: center;
}

.footer .info .center {
    display: flex;
    flex-direction: column;
}

.footer .center>div {
    margin-bottom: 20px;
}

.footer .info .link {
    color: #000;
    font-weight: bold;
    margin-left: 20px;
}

.footer .info .address {
    margin-left: 20px;
    color: #474747;
}

.footer .info .tel {
    color: #d43418;
    margin-left: 20px;
    font-weight: bold;
}

.footer .gzh {
    display: flex;
    flex-direction: column;
    margin: 0 20px 50px;
    align-items: center;
    flex-grow: 1;
}

.footer .gzh span {
    margin-top: 10px;
    font-size: 14px;
}


.footer .about {
    display: flex;
    flex-wrap: wrap;
    flex-grow: 2;
    justify-content: space-evenly;
}

.footer .about dl {
    padding: 0;
    margin: 0 10px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer .about dt {
    color: #333;
    font-weight: bold;
}

.footer .about dl>dd {
    padding: 0;
    margin: 10px 0;
    color: #333;
}

.footer .end {
    height: 20px;
}
