#byz-1 {
    height: 850px;
    background: url(../images/byzbb/byz_01.png) center no-repeat;
    position: relative;
}

#byz-1 .btns {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 100px;
    text-align: center;
}

#byz-1 .btns a {
    display: inline-block;
    width: 220px;
    height: 50px;
    margin: 0 20px;
    line-height: 50px;
    font-size: 24px;
    background: #c41131;
    color: #fff;
}

#byz-2 {
    height: 730px;
    background: url(../images/byzbb/byz_02.png) center no-repeat;
    position: relative;
}

#byz-2 h3 {
    line-height: 180px;
}

#byz-2 ul {
    margin-bottom: 60px;
    display: flex;
    text-align: center;
    padding: 0 60px;
}

#byz-2 ul li {
    flex-basis: 33.33%;
    padding: 0 60px;
}

#byz-2 ul li h4 {
    display: inline-block;
    padding: 0 40px;
    font-size: 33px;
    line-height: 1.5;
    background: #c41131;
    color: #fff;
    border-radius: 30px;
    letter-spacing: 3px;
}

#byz-2 ul li h4 span {
    font-size: 37px;
}

#byz-2 ul li img {
    display: block;
    margin: 30px auto;
}

#byz-2 ul li p {
    font-size: 20px;
}

#byz-2 .btns {
    text-align: center;
}

#byz-2 .btns a {
    display: inline-block;
    width: 220px;
    height: 50px;
    margin: 0 20px;
    line-height: 50px;
    font-size: 24px;
    background: #c41131;
    color: #fff;
}


    #byz_3{
      background: url(../images/byzbb/by_04.jpg) center no-repeat;
      position: relative;
      height:750px;
      padding-top:50px;      
    }
    
    .bj{ 
      background: url(../images/byzbb/by_05.png) top no-repeat; 
      height:610px;
      padding: 50px 240px;
      
    }
    .bj h3{ color:#F00; font-size:40px; }
    .bj p{ font-size:16px; line-height:180%; color:#333;}
    .bj strong{font-size:20px; font-weight:bold;}
    .bj span{font-family:'华文中宋'; font-size:30px; font-weight:bold; color:#F00; text-align:center;    display: block; line-height: 150%;}
    .bj_top{ border-bottom:3px solid #F00; text-align:center; margin-bottom:30px }   

#byz_3 .btns {
    text-align: center;
}

#byz_3 .btns a {
    display: inline-block;
    width: 220px;
    height: 50px;
    margin: 0 20px;
    line-height: 50px;
    font-size: 24px;
    background: #c41131;
    color: #fff;
}