body {
    background-color: #1b1b1b
}

/*====================导航*********/
.header {
    width: calc(100% - 160px);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    height: 100px;
    padding: 0 80px;
    background: rgba(0, 0, 0, 0.1);
}

/*左侧logo*/
.header .left {
    width: 30%;
    display: flex;
    align-items: center;
    height: 100%;
}

.header .left a img {
    height: 64px;
    /* margin-top: 18px; */
}

.header .left .img2 {
    display: none;
}
.on .designation{
    color: #414141;
}
.designation{
    color: #fff;
    padding-left: 10px;
    font-size: 35px;
    font-weight: 700;
}


/*右侧*/
.header .nav {
    -webkit-transition: 0.5s;
    -moz-transition: 0.5s;
    -o-transition: 0.5s;
    transition: 0.5s;
    height: 100%;
    line-height: 100px;
    font-size: 16px;
    display: block;
    position: relative;
}

.header .navbar_nav li {
    float: left;
    position: relative;
    display: block;
}

.header .navbar_nav li:after {
    content: "";
    width: 0;
    height: 2px;
    background: #fff;
    position: absolute;
    bottom: 0;
    left: 0;
    transition: all 0.5s ease 0s;
}

.header .navbar_nav li:hover:after {
    width: 100%;
}

.header .navbar_nav li a {
    text-decoration: none;
    height: 100%;
    padding: 0 25px;
    display: block;
    -webkit-transition: 0.5s;
    -moz-transition: 0.5s;
    -o-transition: 0.5s;
    transition: 0.5s;
    color: #fff;
    font-size: 16px;
}

.header .navbar_nav li:hover a {
    color: #fff;
}

.head_menu {
    margin: 12px auto 0;
    display: block;
    width: 2rem;
    display: none;
}

@media screen and (max-width:750px) {
    .header {
        width: calc(100% - 40px);
        padding: 0 20px;
        height: 60px;

    }

    .header .left a img {
        margin-top: 4px;
        height: 50px;
    }

    .header .nav {
        width: 6rem;
        /* background: #000000; */
    }

    .header .container {
        height: 100%;
    }

    .header .nav .navbar_nav {
        position: absolute;
        left: 0;
        bottom: 0;
        width: 100%;
        transform: translateY(99%);
        line-height: 2.5rem;
        background: #474747;
        display: none;
    }

    .header .nav .navbar_nav.is_head_menu {
        display: block;
    }


    .header .nav .navbar_nav::after {
        content: "";
        position: absolute;
        top: 0;
        left: 50%;
        border: 15px solid transparent;
        border-bottom: 15px solid #474747;
        transform: translate(-50%, -96%);
        /* background: #474747; */
    }

    .header .navbar_nav li:after {
        width: 100%;
        height: 1px;
    }

    .header .navbar_nav li:last-child:after {
        width: 0;
    }
    .designation{
        font-size: 28px;
    }

    .header .navbar_nav li {
        text-align: center;
        float: none;
    }

    .header .navbar_nav li a {
        padding: 0 5px;
    }

    body .header.on .navbar_nav li a {
        color: #fff;
    }

    body .header.on #menu .active a {
        color: brown;
    }

    body .header.on .navbar_nav li:hover a {
        color: brown;
    }

    body .header.on .navbar_nav li:after {

        height: 1px;
        background: brown;
    }

    body .index_main .section1 .index_banner .item1 .inner {
        width: 100%;
        left: initial;
        right: initial;
        top: 5%;
    }

    body .index_main .section1 .index_banner .item1 .inner .block_txt .bannerText .date {
        margin: 8px auto;
        max-width: 90%;

    }

    body .index_main .section1 .index_banner .item1 .inner .block_txt .bannerImg,
    body .index_main .section1 .index_banner .item1 .inner .block_txt .bannerText {
        margin-top: 0;
        margin: 5px 10px;
        float: none;
    }



    body .index_main .section2 .main,
    body .index_main .section3 .main,
    body .index_main .section4 .main,
    body .index_main .section5 .main,
    body .index_main .section6 .main {
        width: 100%;
    }

    body .index_main .section1 .index_banner .item1 .inner .block_txt .bannerText h2 {
        font-size: 30px;
    }

    body .index_main .section1 .index_banner .item1 .inner .block_txt .bannerText h1 {
        width: 100%;
    }

    body .index_main .section1 .index_banner .item1 .inner .block_txt .bannerText h1 span {
        font-size: 30px;
    }

    body .index_main .section2 .scenes ul {
        padding: 0 10px;
        box-sizing: border-box;
    }

    body .index_main .section2 .scenes ul li {
        margin: 0 auto;
        padding: 0 10px;
        width: 50%;
        box-sizing: border-box;
    }

    body .index_main .section2 .scenes ul li .scenesImg {
        width: 90px;
        height: 90px;
    }

    body .index_main .section2 .scenes ul li .scenesImg2 {
        width: 80px;
        height: 80px;
        margin: 2.5px;
    }

    body .index_main .section2 .scenes ul li .scenesTitle {
        height: 25px;
        line-height: 25px;
        margin-top: 80px;
        font-size: 16px;
    }

    body .index_main .section2 .scenes ul li .scenesTitle2 {
        height: 80px;
        line-height: 80px;
        width: 80px;
    }

    body .index_main .section3 h3 {
        margin-top: 80px;
        font-size: 30px;
    }

    body .index_main .section3 .main ul li {
        width: 46%;
        height: 385px !important;
        box-sizing: border-box;
        margin-top: 0;
        margin: 0 0 0 2.6% !important;

        background-size: 100% 385px !important;
    }

    body .index_main .section3 .main ul li:nth-child(2n+1) {
        margin-left: 0;
    }

    .bannerImg img {
        width: 100%;
    }

    body .head_menu {
        display: block;
    }

    body .index_main .section2 h3 {
        font-size: 30px;
        margin-top: 20px;

    }

    body .index_main .section6 .main .contactText .contactRight {
        width: 90%;
        margin: 0 auto;
        padding-right: 50px;
        box-sizing: border-box;
    }

    body .index_main .section6 .copyRight {
        padding: 0 10px;
        box-sizing: border-box;
    }

    body .index_main .section6 .main .contactText .text {
        font-size: 18px;
    }

    body .index_main .section4 .serviceCenter {
        display: none;
    }

    body .index_main .section4 .serviceLeft ul li,
    body .index_main .section4 .serviceRight ul li {
        margin-top: 20px !important;
        width: 50%;
        position: relative;
        padding-top: 80px;

    }

    .serviceIcon {
        position: absolute;
        top: 10px;
        left: 50%;
        transform: translateX(-50%);

    }

    .contactLogo .fr {
        width: 90%;
    }

    .contactLogo .fr img {
        display: block;
        /* margin: 0 auto; */
    }

    body .index_main .section4 .serviceLeft ul li .serviceText,
    body .index_main .section4 .serviceRight ul li .serviceText {
        text-align: center;
        width: 90%;
        margin: 0 auto;


    }

    /* body .index_main .section4 .serviceLeft ul li .serviceIcon{
        float: left;
    } */
    body .index_main .section4 .serviceLeft,
    body .index_main .section4 .serviceRight {
        width: 100%;
        padding: 0 10px;
        box-sizing: border-box;
        margin: 0 auto;
    }

    /* body .index_main .section4 .serviceRight ul li .serviceText{
        width: 50%;
        margin: 0;
    } */

    .index_main .section6 .main .contactText .contactLeft{
        float: none;
        margin-left: 42px;
    }
    body .header .left{
        width: 50%;
    }
    body .index_main .section2 .scenes ul li .scenesText p{
        font-size: 13px;
    }
}
body .index_main .section4 .serviceCenter h3{
    font-size: 40px;
}



#menu .active a {
    color: #fff;
    font-weight: bold;
}

/*白色背景的头部*/
.header.on {
    background: #fff;
}

.header.on .left .img1 {
    display: none;
}

.header.on .left .img2 {
    display: block;
}

.header.on .navbar_nav li a {
    color: #333;
}

.header.on .navbar_nav li:hover a {
    color: #1a4bbe;
}

.header.on .navbar_nav li:after {
    content: "";
    width: 0;
    height: 2px;
    background: #1a4bbe;
    position: absolute;
    bottom: 0;
    left: 0;
    transition: all 0.5s ease 0s;
}

.header.on .navbar_nav li:hover:after {
    width: 100%;
}

.header.on #menu .active a {
    color: #1a4bbe;
    font-weight: bold;
}

#navToggle {
    display: none;
}