.hb_top_twonav{
}
.leftbu{
    position: absolute;
    width: 50%;
    height: 50px;
    left: 0;
    background-color: #005bac;
}
.hb_top_twonav .subtitle{
    width: 1400px;
    margin: auto;
    height: 100%;
    background-color: #005bac;
    position: relative;
}
.hb_top_twonav .subtitle:after{
content: '';
  position: absolute;
  top:0;
  right:0;
  width:0;
  height:0;
  border-top:50px solid transparent;
  border-bottom:50px solid transparent;
  border-right:50px solid #fff;
}
.necessities{
    line-height: 1;
}
.xuezaibh{
    position: relative;
    padding-top: 28px;
    margin-bottom: 215px;
}
.xuezaibh_l{
    width: 49.572%;
    height: 537px;
    background:url(/image/necessities/pic1.png) no-repeat;
    background-size: 100% auto;
    padding: 6% 0 0 14%;
    margin-left: -5.7%;
}
.necetext{}
.necetext h4{
    font-size: 72px;
    color: #ffffff;
    font-weight: 550;
    margin-bottom: 10%;
}
.necetext ul li{
    font-size: 30px;
    line-height: 60px;
    color: #ffffff;
    white-space: nowrap;
    width: 50%;
}
.xingzaibh_l ul li{
    width: 100%;
}
.xuezaibh .xuezaibh_r{
    right: -1.8%;
    top: 205px;
    width: 70%;
    z-index: 2;
}
.necessimg{
    position: absolute;
}
.necessimg img{
    width: 100%;
}


.shizaibh{
    position: relative;
    margin-bottom: 70px;
}
.shizaibh_l{
    background:url(/image/necessities/pic5.png) no-repeat;
    background-size: 100% auto;
    width: 50.1%;
    height: 678px;
    padding:9% 0 0 6%;
    margin-left: 12%;
    position: relative;
    z-index: 1;
}
.shizaibh_l h4{
    margin-bottom: 5%;
    white-space: nowrap;
}
.shizaibh_r{
    right: 8.1%;
    top: 20%;
    width: 48%;
}
.zhuzaibh{
    position: relative;
    margin-bottom: 138px;
    z-index: 1;
}
.zhuzaibh_l{
    background:url(/image/necessities/pic6.png) no-repeat;
    background-size: 100% auto;
    width: 38.36%;
    height: 539px;
    padding: 11% 0 0 3%;
    position: relative;
    z-index: 1;
    margin-right: -5.3%;
}
.zhuzaibh_l h4{
    margin-bottom: 30px;
}
.zhuzaibh_l ul{
    padding-left: 42px;
}
.zhuzaibh_r{
    top: -30%;
    left: -3%;
    width: 77.5%;
}
.xingzaibh{
    position: relative;
}
.xingzaibh_l{
    width: 25.08%;
	height: 443px;
    background-color: #4f71aa;
    padding: 59px 0 0 41px;
    margin-left: 12%;
}
.xingzaibh_l h4{
    margin-bottom: 28px;
}
.xingzaibh_r{
    width: 55%;
    margin-right: 7.92%;
}
.xingzaibh_r img{
    width: 100%;
}
@media screen and (max-width: 1400px) {
    .stucontinner,.hb_top_twonav .subtitle{
        width: 80%;
    }
    .necetext h4{
        font-size: 50px;
        margin-bottom: 35px;
    }
    .necetext ul li{
        font-size: 24px;
        line-height: 45px;
        
    }
    
}
@media screen and (max-width: 1280px){
.necetext h4{
    font-size: 40px;
    margin-bottom: 20px;
}
.xuezaibh_l{
    padding-left: 10%;
}
.necetext ul li{
    font-size: 20px;
}
.necessimg img{
    width: 85%;
}
.xuezaibh .xuezaibh_r {
    right: -1.8%;
    top: 16px;
    width: 70%;
    z-index: 2;
}
.xuezaibh,.zhuzaibh{
    margin-bottom: 30px;
}
.xuezaibh_l,.shizaibh_l,.zhuzaibh_l,.xingzaibh_l{
        height: auto;
    }
.shizaibh_l{
    margin-left: 0;
}
.zhuzaibh_r{
    width: 60%;
    top: 0;
}
.zhuzaibh_l{
    margin-right: 10%;
    padding: 40px 0 0 15px;
}
.zhuzaibh_l ul{
    padding-left: 0;
}
.zhuzaibh{
    margin-bottom: 100px;
}
.xingzaibh_l{
    margin-left: 0;
    width: 35%;
    padding: 40px 0 20px 30px;
}

}
@media screen and (max-width: 1023px){
    .Secondary_mainbg2{
        background: none;
    }
    .xuezaibh,.shizaibh,.zhuzaibh,.xingzaibh{
        padding-top: 0;
        margin-bottom: 0rem;
        height: 4rem;
        overflow: hidden;
    }
    .xuezaibh_l{
        height: 100%;
        margin-left: 0rem;
        padding: .7rem 0 0 6%;
        background: none;
        background-color: #295dab;
    }
    .necetext h4{
        font-size: .4rem;
        margin-bottom: .2rem;
    }
    .necetext ul li{
        font-size: .26rem;
        line-height: 1.8;
        width: 100%;
    }
    .necessimg img,.xingzaibh_r img{
        height: 100%;
        width: 100%;
        object-fit:cover;
        
    }
    .xuezaibh .xuezaibh_r{
        width: 56%;
        top: 0;
        height: 100%;
    }
    .shizaibh_l,.xingzaibh_l{
        height: auto;
    }
    .shizaibh_l{
        height: 100%;
        background: none;
        background-color: #c69f16;
        margin-left: 0;
        width: 60%;
    }
    .shizaibh_r,.zhuzaibh_r{
        top: 0;
        right: 0;
        height: 100%;
    }

    .zhuzaibh_l{
        height: 100%;
        background: none;
        background-color: #2b6c00;
        width: 50%;
        padding-left: 6%;
        margin-right: 0;
    }
    .zhuzaibh_l ul{
        padding-left: 0;
    }
    .xingzaibh_l{
        margin-left: 0;
        width: 50%;
        height: 100%;
        padding: .7rem 0 0 6%;
    }
    .xingzaibh_r{
        width: 50%;
        margin-right: 0;
        height: 100%;
    }
}<!--ºÄʱ1763855422.6292Ãë-->