/*common start*/
body, div, ul, li, a, img, p, dl, dt, dd, h1, h2, h3, h4, span, strong, input {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    border: 0;
    list-style: none;
}

body {
    font-size: 12px;
    font-family: 'Microsoft YaHei';
    color: #333;
}

a {
    color: #666;
}

    a:hover {
        color: #f60;
        text-decoration: none;
    }

:hover {
    transition: all .3s ease;
}

p {
    line-height: 1.5em;
    padding: 5px 0;
    font-size: 16px;
}

.clear {
    margin: 0;
    padding: 0;
    font-size: 0;
    clear: both;
}

.wapper {
    width: 100%;
    max-width: 1366px;
    margin: 0 auto;
}

input, textarea, select {
    outline: none
}
/*common end*/

.head {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: #Fff;
    height: 70px;
    z-index: 999;
}

    .head .logo {
        width: 15%;
    }

    .head .wapper {
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        align-items: center;
    }

.logo img {
    max-width: 100%;
}

.menu {
    width: 68%;
}

    .menu ul {
        text-align: center;
    }

        .menu ul li {
            padding: 0 35px;
            line-height: 70px;
            float: none;
            display: inline-block;
            text-align: center;
        }

            .menu ul li.erj {
                background-image: url(../images/donw.png);
                background-position: center right 15px;
                background-repeat: no-repeat;
            }

                .menu ul li.erj:hover {
                    background-image: url(../images/up.png);
                    background-position: center right 15px;
                    background-repeat: no-repeat;
                }

            .menu ul li a {
                font-size: 16px;
                color: #202020;
            }

.login {
    width: 15%;
    display: flex;
    align-items: center;
}

    .login img {
        margin-right: 10px;
    }

.erjnr {
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #fff;
    padding-top: 10px;
    padding-bottom: 30px;
    z-index: 99;
    display: none;
}

.wapper1 {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.erjnr ul li {
    width: calc((100% - 70px)/3);
    margin: 10px;
    padding: 0;
}

    .erjnr ul li h1 {
        font-size: 14px;
        margin-bottom: 28px;
        color: #888;
        text-align: left;
        text-indent: 1rem;
        line-height: normal;
    }

    .erjnr ul li dl dd {
        text-align: left;
        line-height: 36px;
        text-indent: 1rem;
        margin-bottom: 12px;
    }

.menu ul li:hover .erjnr {
    display: block;
}

.erjnr ul li dl dd:hover {
    background-color: #f1f1f1;
}

.nv {
    height: 70px;
}

.bnneritem {
    width: 100%;
    padding-top: 60px;
}

.banner {
    width: 100%;
    background-color: #eef0fa;
    height: calc(100vh - 70px);
}

.bnnerbt {
    font-size: 40px;
    text-align: center;
    margin-bottom: 4px;
}

.bannernr {
    text-align: center;
    font-size: 24px;
}

    .bannernr p {
        padding: 0;
        line-height: normal;
    }

.btnlist {
    margin-top: 20px;
    margin: 0 auto;
    margin-top: 30px;
    /* width: 28%; */
    text-align: center;
}

    .btnlist a {
    }

.btnitem {
    width: 162px;
    height: 48px;
    display: inline-block;
    font-size: 16px;
    font-weight: 600;
    line-height: 45px;
    border: 1px solid;
    border-radius: 5px;
    margin: 0 7px;
}

.btn1 {
    background-color: #d20029;
    color: #fff;
}

.btn2 {
    background-color: #0a65cc;
    color: #fff;
}

.btn3 {
    background-color: #fff;
    color: #000;
}

.more {
    width: 100%;
    margin-top: 17px;
    text-align: center;
}

    .more a {
        font-size: 14px;
    }

.bannerpic {
    width: 100%;
    height: 58vh;
}

    .bannerpic img {
    }

.bnerbt h1 {
    line-height: 72px;
    font-size: 16px;
    cursor: pointer;
}

.nav {
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    position: sticky;
    bottom: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    background: hsla(220, 3%, 58%, .6);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

    .nav ul {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
    }

        .nav ul li {
            border-right: 1px solid hsla(0, 0%, 100%, .3);
            width: 168px;
            text-align: center;
            cursor: pointer;
            color: #fff;
            font-size: 14px;
            font-weight: 400;
            line-height: 50px;
        }

            .nav ul li a {
                color: #fff;
            }

            .nav ul li:hover {
                background-color: #c4c5c8;
            }

.foot {
    width: 100%;
    padding: 30px 0;
    background-color: #fff;
}

    .foot .wapper {
        display: flex;
        flex-wrap: wrap;
    }

.footlf {
    width: 60%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.add {
    width: 33%;
}

.buy {
    width: 33%;
}

    .buy h1 {
        font-size: 12px;
        margin-bottom: 5px;
    }

.buyitem {
    margin-bottom: 20px;
}

.other {
    width: 30%;
}

.btnitem {
    text-align: center;
}

.case1 {
    width: 100%;
    position: relative;
    padding: 55px 0;
}

    .case1 img {
        width: 100%;
        display: block;
        height: 100%;
    }

.wapper2 {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.casenr {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.caself {
    width: 48%;
}

    .caself h1 {
        font-size: 32px;
        margin-bottom: 18px;
        color: #fff;
    }

    .caself p {
        font-size: 18px;
        margin-bottom: 48px;
        color: #fff;
    }

.casert {
    width: 48%;
}

    .casert img {
        width: 100%;
        cursor: pointer;
        border: 1px solid #fff;
        border-radius: 10px;
        overflow: hidden;
    }

.tshow {
    position: fixed;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    top: 0;
    left: 0;
}

.videoplay {
    width: 70%;
    background-color: #fff;
    padding: 20px;
    position: relative;
}

.tclose {
    width: 30px;
    height: 30px;
    position: absolute;
    top: 20px;
    right: 20px;
    color: #fff;
    font-size: 16px;
    line-height: 30px;
    cursor: pointer;
    text-align: center;
    z-index: 99;
}

.video1 {
    display: none;
}

.case2 {
    width: 100%;
    padding: 70px 0;
}

    .case2 h1 {
        font-size: 24px;
        margin-bottom: 25px;
        text-align: center;
    }

    .case2 ul li {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        margin-bottom: 30px;
    }

.case2lf {
    width: calc(50% - 2px);
    position: relative;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 10px 0 0 10px;
}

.img1 {
    width: 50px;
    position: absolute;
    top: 50%;
    right: -25px;
    transform: translateY(-50%);
}

.pd2 {
    padding: 60px 48px 60px 48px;
}

.case2rt {
    width: 50%;
    width: calc(50% - 2px);
    background-color: #fff;
    padding: 20px 0;
    border: 1px solid #ddd;
    border-radius: 10px;
}

.pd1 {
    padding: 32px 48px;
}

.c2lftop {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.c2lfpic {
    width: 32px;
    display: block;
    margin-right: 10px;
}

.c2lftop h1 {
    font-size: 22px;
    margin: 0;
}

.c2rttop {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.c2rtpic {
    width: 63px;
    display: block;
    margin-right: 10px;
}

.c2rttop h1 {
    font-size: 24px;
    margin: 0;
}

.case2rt dl dd {
    display: flex;
    align-items: center;
    line-height: 28px;
    margin-bottom: 10px;
}

    .case2rt dl dd img {
        width: 28px;
        margin-right: 10px;
    }

    .case2rt dl dd span {
        font-size: 16px;
    }

.picBtnTop {
    width: 100%;
    height: 385px;
    border: 0;
    padding: 0;
    position: relative;
    overflow: hidden;
    zoom: 1;
    display: flex;
    justify-content: space-between;
}

    .picBtnTop .hd {
        width: 48%;
        height: 100%;
        position: relative;
        right: 5px;
        overflow: hidden;
    }

        .picBtnTop .hd ul li {
            width: 100%;
            text-align: center;
            margin-bottom: 20px;
            border-left: 1px solid #fff;
            padding-left: 20px;
        }

        .picBtnTop .hd ul {
            display: flex;
            flex-wrap: wrap;
            height: 100%;
            align-items: center;
        }


    .picBtnTop .bd {
        width: 48%;
        height: 100%;
        position: relative;
    }

        .picBtnTop .bd li {
            position: relative;
            zoom: 1;
            vertical-align: middle;
        }

            .picBtnTop .bd li .pic {
                position: relative;
                z-index: 0;
            }

                .picBtnTop .bd li .pic img {
                    width: 100%;
                    height: 100%;
                    vertical-align: bottom;
                }

            .picBtnTop .bd li .bg {
                width: 100%;
                height: 30px;
                position: absolute;
                left: 0;
                bottom: 0;
                z-index: 1;
                background: #000;
                filter: alpha(opacity=60);
                opacity: 0.6;
            }

            .picBtnTop .bd li .title {
                width: 400px;
                height: 30px;
                line-height: 30px;
                left: 0;
                bottom: 0;
                position: absolute;
                z-index: 2;
            }

                .picBtnTop .bd li .title a {
                    color: #fff;
                    padding-left: 15px;
                }

#demo1, #demo2 {
    margin-bottom: 20px;
}

.case3 .btt {
    font-size: 36px;
    text-align: center;
    margin-bottom: 30px;
}

.case3 {
    padding: 60px 0;
}

.c3top {
    display: flex;
    align-items: center;
}

.c3toppic {
    width: 28px;
    margin-right: 10px;
}

.c3nr {
    display: none;
}

    .c3nr p {
        font-size: 18px;
        text-align: left;
    }

.picBtnTop .hd ul li.on .c3nr {
    display: block;
}

.picBtnTop .hd ul li.on {
    border-left: 1px solid #000;
}

.case5 {
    padding: 60px 0;
}

    .case5 h1 {
        font-size: 36px;
        text-align: center;
        margin-bottom: 30px;
    }

    .case5 ul li {
        border-radius: 12px;
        border: 1px solid rgba(0, 0, 0, .12);
        margin-bottom: 20px;
        background: #fff;
        width: calc((100% - 60px)/3);
        text-align: center;
        margin-right: 24px;
        float: left;
    }

        .case5 ul li:nth-child(3) {
            margin-right: 0;
        }

.pd20 {
    padding: 24px 40px;
}

.c5top {
    display: flex;
    align-items: center;
    justify-content: center;
}

.c5pic {
    width: 24px;
    margin-right: 10px;
}

.c5top h2 {
    font-size: 22px;
}

.case5 ul li p {
    font-size: 16px;
}

.con {
    padding: 60px 0;
}