a {
    color: #303030;
    text-decoration: none;
}
.clear {
    clear: both;
    visibility: hidden;
    height: 0;
    line-height: 0;
    font-size: 0;
}

.clearfix:after {
    clear: both;
    content: ".";
    height: 0;
    display: block;
    visibility: hidden;
}

.clearfix {
    *zoom:1;}

.bd_con4 {
    /* background: #E7E2DF; */
    /* height: 1000px; */
    width: 905px;
    /* border: 1px solid #CCC; */
    position: relative;
    /* margin: 0px auto; */
    display: flex;
    flex-direction: column;
}

.bd_t3 {
    font: 18px/45px "Microsoft YaHei";
    color: #FFF;
    padding: 0px 14px 14px;
    height: 45px;
    position: absolute;
    left: -1px;
    top: -1px;
    background: url(../images/bd_bg1.jpg) no-repeat;
    width: 610px;
    z-index: 100;
}

.bd_c4l {
    /* background: #F9F1E6; */
    /* float: left; */
    /* height: 344px; */
    width: 210px;
    /* padding-top: 64px; */
    /* padding-left: 25px; */
    position: absolute;
    right: -200px;
}
.bd_c4l ul{
    margin-top:30px;
    margin-left: 0;
    padding: 0;
    column-count: 2;
    height: 480px;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
}
.bd_c4l ul li {
    font: 18px/18px "Microsoft YaHei","微软雅黑";
    color: #615f5f;
    /* text-align: center; */
    height: 36px;
    width: 100px;
    cursor: pointer;
    /* background: #e4e1e1; */
    margin: 0px 3px 3px 0px;
    float: left;
    list-style-type: none;
}

.bd_c4l ul .bd_cutLi {
    /* background: #7e7e7e; */
    color: #232323;
    /* border: 2px solid #ccc; */
    font-weight: 700;
}

.bd_c4r {
    /* float: right; */
    /* width: 336px; */
}

.bd_c4top {
    /* height: 333px; */
}

.bd_lbtn {
    padding: 0px 0px 0px 5px;
    float: left;
    width: 45px;
    /* background: url(../images/l.png) no-repeat; */
    background-size:50px 50px;
    display: block;
    height: 550px;
    margin-top: 145px;
    cursor: url(../images/l.png) 60 50,pointer;
    /* background-position: left center; */
    line-height: 650px;
    text-align: center;
}

.bd_rbtn {
    float: right;
    width: 40px;
    padding-top: 0px;
    padding-right: 9px;
    display: block;
    height: 550px;
    margin-top: 145px;
    /* background: url(../images/bd_rbtn.jpg) no-repeat; */
    position: relative;
    right: 25px;
    background-position: left center;
    cursor: url(../images/r.png) 60 50,pointer;
    line-height: 650px;
    text-align: center;
}
}

.bd_lbtn:hover {
    /*background: url(../images/l.png) no-repeat;*/
    background-position: left center;
    background-size:50px 50px;
}

.bd_rbtn:hover {
    /*background: url(../images/r.png) no-repeat;*/
    background-position: left center;
    background-size:50px 50px;
}

.bd_chgBox {
    float: left;
    height: 890px;
    width: 780px;
    overflow: hidden;
    position: relative
}

.bd_long {
    width: 3216px;
    position: absolute;
    left: 0px;
    top: 0px;
    height: 333px;
}
.bd_long ul{
    margin:0;
    padding:0;
}
.bd_long ul li {
    height: 957px;
    width: 780px;
    float: left;
    font-family: "Microsoft YaHei","微软雅黑";
    list-style-type: none;
}
div.tabtop > div.tabtl > div.smicon{
    font-size: 50px;
    font-weight:lighter;
    color: #787878;
    position: relative;
    top: -26px;
    height: 77px;
}
div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > div > div > ul > li > div > div.tabtop{
    display:flex;
}
div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > div > div > ul > li > div > div.tabtop>.tabtl{
    flex-basis: 285px;
}
div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > div > div > ul > li > div > div.tabtop>.tabtr{
    flex-basis: 585px;
    flex-grow:2;
    position: relative;
}
.tab .tabtr .photo{
    width:375px;
    height:445px;
    float:right;
    overflow: hidden;
    position: relative;
}
.tab .tabtr .photo img{
    position: absolute;
    object-fit: cover;
    transform: translate(-50%, -50%);
    left: 50%;
    top: 50%;
    width: 100%;
    height: 100%;
    max-height: 445px;
}
/*div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > div > div > ul > li > div > div.tabtop>.tabtr img{
    width:375px;
    height:445px;
    float:right;
}*/
.cover{
    height:100%;
    position: absolute;
    width: 100%;
    top: 0;
    /*background:linear-gradient(to right, rgba(255,0,0,0) 70%, rgb(228 255 0 / 62%));*/
    /*background:linear-gradient(to right, rgba(255,0,0,0) 90%, rgb(228 255 0)),linear-gradient(to left, rgba(255,0,0,0) 90%, rgb(228 255 0));*/
    transition: 1s;
}
.bc_chgTitle {
    height: 54px;
    text-align: center;
    width: 268px;
    padding-top: 9px;
    font: bold 16px/54px "Microsoft YaHei";
}

.bd_lbtn img,.bd_rbtn img {
    cursor: pointer
}

.bd_long ul li p {
    font-size: 16px;
    line-height: 28px;
    /* padding-top: 12px; */
    font-weight: lighter;
    /* text-indent: 2em; */
    margin: 0;
}

.tab{
    padding: 35px;
    border: 1px solid #ccc;
    height: 810px;
}

.listright  div.tchtitle{
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 3px;
    color: #787878;
    padding-bottom: 136px;
    padding-top: 150px;
    width: 220px;
    height: 61px;
}

div.listright  div.jysenname{
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
div.listright  div.jsname{
    font-size: 18px;
    letter-spacing: 1px;
}

div.tab > div.tabdetail{
    /* padding-left: 35px; */
    text-align: justify;
    font-size: 16px;
    padding-top: 30px;
    line-height: 28px;
}

.lanmu .maincontent .lmleft {
    float: left;
    width: 370px;
    color: #9d9e9e;
    padding-top: 52px;
    flex-basis: 281px;
    /* text-align: center; */
    padding-left: 20px;
}

body > main > div > section > div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > a.bd_rbtn .fa,
body > main > div > section > div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > a.bd_lbtn .fa{
    font-size:20px;
}

@media (max-width: 768px) {
    .bd_chgBox {
        float: left;
        height: auto;
        width: 100%;
        overflow: hidden;
        position: relative;
        clear: both;
    }
    .bd_long {
        position: relative;
    }
    .bd_long ul li {
        height: auto;
        width: 100vw;
    }
    .bd_con4 {
        width: 100%;
    }
    .tab{
        padding: 0px;
        height:auto;
        margin: 0 auto;
        border: 1px solid #cccccc00;
    }
    div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > div > div > ul > li > div > div.tabtop{
        flex-direction:column;
    }
    div.tabtop > div.tabtl > div.smicon{
        display:none;
    }
    .listright  div.tchtitle{
        padding-bottom: 10px;
        padding-top: 10px;
    }
    div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > div > div > ul > li > div > div.tabtop>.tabtl{
        flex-basis: auto;
    }
    div.listright > div.tchppt > div.bd_con4 > div.bd_c4r > div > div > div > ul > li > div > div.tabtop>.tabtr{
        flex-basis: auto;
    }
    .tab .tabtr .photo{
        width:100vw;
        height:119vw;
        float:right;
        overflow: hidden;
        position: relative;
    }
    .bd_lbtn,.bd_rbtn {
        display:none;
    }
    .bd_c4l {
        float: left;
        width: 100vw;
        position:static;
    }
    .tab .tabtr .photo img{
         max-height: fit-content; 
    }
}