.case_main {
    width: 1200px;
    box-sizing: border-box;
    padding: 114px 0 73px 0;
    margin: 0 auto;
    /* border: 1px solid red; */
}
/* 标题 */
.case_main_title {
    position: relative;
    font-size: 28px;
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: 500;
    color: #262626;
    text-align: center;
    margin-bottom:50px;
}
.case_main_title_bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-90%);
    z-index: -1;
    font-size: 60px;
    font-family: Source Han Sans CN, Source Han Sans CN;
    font-weight: bold;
    color: #E9E9E9;
}
.case_main_list {
    display: flex;
    flex-wrap: wrap;
}

.case_main_list>a {
    display: block;
    width: 375px;
    height: 450px;
    font-size: 16px;
    color: #707070;
    margin:0 12px 60px;
    box-sizing: border-box;
    /* border: 1px solid red; */
}
.case_main_list>a:hover {
    cursor: pointer;
    box-shadow: 0px 3px 10px 1px rgba(0,0,0,0.16);

}
.case_main_list>a img {
    width: 100%;
    height: 298px;
}
.case_main_list>a>div {
    padding: 25px 25px 10px 25px ;
    text-align: center;
}
.case_main_list>a div div {
    font-size: 20px;
    font-weight: 500;
    color: #262626;
    margin-bottom: 16px;
}
.case_main_list>a div p {
    width: 100%;
    height: 55px;

    text-overflow: -o-ellipsis-lastline;
    overflow: hidden;			
    text-overflow: ellipsis;	
    display: -webkit-box;		
    -webkit-line-clamp: 3;		
    line-clamp: 3;					
    -webkit-box-orient: vertical;

}

/* 鼠标经过选中效果 */
.case_main_list_active {
    box-shadow: 0px 3px 10px 1px rgba(0,0,0,0.16);
}



/* 分页 */
.casepage {
    display: flex;
    justify-content: center;
    align-items: center;
    color: #999999;
    font-size: 14px;
    margin: 130px 0 0 0;
}
.casepage>div:nth-child(2){
    display: flex;
}
.casepage>div:nth-child(2) span{
    width: 32px;
    height: 32px;
    background-color: #F7F7F7;
    text-align: center;
    line-height: 32px;
    margin: 0 4px;
    border-radius: 2px;

}

.casepage>div:hover {
    cursor: pointer;
}

/* 上一页 */
.casepage>div:nth-child(1){
    width: 32px;
    height: 32px;
    background-color: #F7F7F7;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 5px;
    border-radius: 2px;

}
.casepage>div:nth-child(1) span{
    width:10px;
    height: 10px;
    border-left: 3px solid rgb(202, 198, 198);
    border-bottom: 3px solid rgb(202, 198, 198);
    transform: rotate(46deg);

}
/* 下一页 */
.casepage>div:nth-child(3){
    width: 32px;
    height: 32px;
    background-color: #F7F7F7;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: 5px;
    border-radius: 2px;


}
.casepage>div:nth-child(3) span{
    width:10px;
    height: 10px;
    border-left: 3px solid rgb(202, 198, 198);
    border-bottom: 3px solid rgb(202, 198, 198);
    transform: rotate(225deg);
}

/* 上一页或下一页选中效果 */
.casepreActive {
    border-left: 3px solid rgb(165, 165, 165) !important;
    border-bottom: 3px solid rgb(165, 165, 165) !important;
}
/* 选中效果 */
.casepageActive {
    background: #E9BB41 !important;
    color: #fff;
}


/* 案例详情 */
.case_detail {
    /* width: 1008px; */
    width: 100%;
    padding: 110px 0;
    box-sizing: border-box;
}
.case_detail_main {
    width: 60%;
    margin: 0 auto;

}




@media screen and (max-width:1200px){
    ._swiper_img {
        height: 450px;
    }
    
    .case_main {
        width: 100%;

    }

    .case_main_list>a {
        width: 340px;
        height: 450px;
        font-size: 16px;
        color: #707070;
        margin: 0 12px 60px;
        box-sizing: border-box;
        /* border: 1px solid red; */
    }
    .case_main_list {
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        width: 80%;
        margin: 0 auto;
    }



}


@media screen and (max-width:900px){
    ._swiper_img {
        height: 300px;
    }

    .case_main_list>a {
        width: 340px;
        height: 450px;
        font-size: 16px;
        color: #707070;
        margin: 0 12px 60px;
        box-sizing: border-box;
        /* border: 1px solid red; */
    }
    .case_main_list {
        justify-content: center;

    }
    
    .case_main_title_bg {
        font-size: 40px;
    }

}


@media screen and (max-width:668px){
    .case_detail {
        border-top: 1px solid #707070;
    }
    .case_main_title_bg {
        font-size: 22px;
        transform: translate(-50%,-120%);
    }
}