body{
    background-color: #F8F8F8;
}

.main{
    margin: 20px auto;
    display: flex;
    gap: 20px;
}
.s_left{
    background: #FFFFFF;
    width: 260px;
    flex-shrink: 0;
    padding: 0 12px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}
.s_right{
    flex: 1;
    overflow: auto;
    padding: 0 10px;
}

.s_nav{
    background: #FFFFFF;
    box-shadow: 0px 0px 10px 0px rgba(0,0,0,0.15);
    margin-top: 0;
    padding: 20px 16px;
    margin-bottom: 20px;
}

.s_nav .font_lx, .case_list .font_lx{
    text-align: left;
    width: 100%;
    margin-bottom: 14px;
    font-weight: bold;
    font-size: 16px;
    color: #333333;
    position: relative;
}
.s_nav .font_lx::before, .case_list .font_lx::before{
    content: '';
    width: 4px;
    height: 20px;
    background: #183F99;
    border-radius: 2px 2px 2px 2px;
    position: absolute;
    left: -16px;
}
.s_nav a{
    display: inline-block !important;
    margin: 0 20px 12px 0;
    color: #333333;
}
.s_nav .font_xz{
    font-weight: bold;
    color: #245BDB;
}
.main_nav a{
    display: block !important;
    padding: 10px 0;
    margin: 0;
}
.case_list{
    background: #FFFFFF;
    box-shadow: 0px 0px 10px 0px rgba(0,0,0,0.15);
    border-radius: 0px 0px 0px 0px;
    position: relative;
    padding: 20px 16px;
}
.case_item{
    padding: 16px 0 12px;
    margin: 0 37px;
    width: auto;
    position: relative;
}
.case_btn{
    bottom: 16px;
    color: #FF6C6C;
    border-radius: 6px 6px 6px 6px;
    border: 1px solid #EC3B3B;
    line-height: 28px;
    font-size: 14px;
    padding: 0 12px;
}
.case_item img{
    width: 16px;
    margin-right: 12px;
}
.case_item .xf_time{
    padding-left: 0;
    padding-top: 12px;
    font-size: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.case_item .f_titbox{
    overflow: hidden;
}
/* 更小 */
@media screen and (max-width: 1359px) {
    .main {
      width: 1000px;
    }
  }
  
  /* 720p */
  @media screen and (min-width: 1360px) and (max-width: 1919px) {
    .main {
      width: 85vw;
    }
  }
  
  /* 1080p屏幕 */
  @media screen and (min-width: 1920px) and (max-width: 2559px) {
    .main {
        width: 85vw;
    }
  }
  
  /* 2K屏幕 */
  @media screen and (min-width: 2560px) {
    .main {
      width: 2000px;
    }
  }