.case_tit{
    font-weight: bold;
    font-size: 36px;
}
.case_text{
    color: #666666;
    margin: 20px 0 30px;
}
.case_boxes{
    display: flex;
    flex-wrap: wrap;

}
.case_box{
    width: 23.5%;
    margin-right: 2%;
    margin-bottom: 20px;

}
.case_box:nth-child(4n){
    margin-right: 0;
}
.case_box_tit{
    font-weight: bold;
    margin: 20px 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}
.case_box_button{
    border: 1px solid #3c7cc4;
    color: #3c7cc4;
    width: 200px;
    padding: 10px 0;
    text-align: center;
    -webkit-transition: all 0.5s;
    transition: all 0.5s;
}
.case_box_button:hover{
    background-color: #3c7cc4;
    color: #FFF;
    font-weight: bold;
}

.case_title{
    font-weight: bold;
    font-size: 36px;
    margin-bottom: 20px;
}
.case_description{
    color: #666;
    margin-bottom: 50px;
}
.case_top{
    display: flex;
    justify-content: space-between;
}
.case_json{
    padding: 15px;
    border-bottom: 1px solid #ebebeb;
    margin-bottom: 10px;
}
.case_img{
    width: 600px;
}
.case_top_right{
    width: 580px;
}
.case_json{
    display: flex;
}
.case_json span{
    font-weight: bold;
}
.case_details_title{
    font-size: 24px;
    font-weight: bold;
    padding-bottom: 10px;
    border-bottom: 2px solid #cccccc;
    margin-bottom: 35px;
}
.case_index{
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}
.case_index .case_index_box{
    width: 285px;
    border: 1px solid #e3e3e3;
    padding: 10px 0 20px;
    -webkit-transition: all 0.5s;
    transition: all 0.5s;
}
.case_index .case_index_box .case_index_img{
    width: 263px;
    margin: 0 auto;
}
.case_index .case_index_box .case_index_tit{
    width: 263px;
    margin: 15px auto 0;
    font-weight: bold;
    -webkit-transition: all 0.5s;
    transition: all 0.5s;
}
.case_index .case_index_box .case_index_line{
    width: 263px;
    height: 1px;
    background-color: #e1e1e1;
    margin: 15px auto;
    -webkit-transition: all 0.5s;
    transition: all 0.5s;
}
.case_index .case_index_box .case_index_text{
    width: 263px;
    margin: 0 auto;
    color: #666666;
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    height: 35px;
    -webkit-transition: all 0.5s;
    transition: all 0.5s;
}
.case_index .case_index_box:hover{
    background-color: #3c7cc4;
}
.case_index .case_index_box:hover .case_index_tit{
    color: #FFFFFF;
}
.case_index .case_index_box:hover .case_index_line{
    background-color: #FFFFFF;
}
.case_index .case_index_box:hover .case_index_text{
    color: #FFFFFF;
}
.case_buttons{
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}
.case_button{
    width: 200px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #3c7cc4;
    color: #FFF;
}
.case_button img{
    width: 30px;
    height: 30px;
    margin-right: 10px;
}
.case_button.right{
    width: 350px;
    background-color: initial;
    color: #3c7cc4;
    border: 1px solid #3c7cc4;
}
.case_box_img{
    height: 170px;
}