#tag1{
    padding-top: 1.6rem;
}
.p1-tit{
    margin: .5rem 0;
    font-size: .6rem;
    font-weight: bold;
    color: #3e3a39;
}
.p1  .p1-list{
    padding-bottom: .5rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.p1  .p1-list .item{
    position: relative;
    margin-bottom: .1rem;
    width: 4.06rem;
    height: 2.8rem;
}
.p1  .p1-list .item:last-child{
    width: 8.24rem;
    height: 2.8rem;
}
.p1  .p1-list .item .txt{
    position: absolute;
    top: 0;
    left: 0;
    width: 2.1rem;
    height: .34rem;
    line-height: .34rem;
    font-size: .27rem;
    color: #fff;
   text-align: center;
   background: url(../img/knowledge/p1-txt-bg.png) center no-repeat;
   background-size: 100%;
}
.p1 .p1-intro{
    margin-bottom: 1.1rem;
    font-size: .26rem;
    line-height: .42rem;
    color: #595757;
}
.p2-list{
    margin-top: .7rem;
    margin-bottom: 1.4rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.p2-list .item{
    margin-bottom: .2rem;
    border:.05rem solid #231815;
    position: relative;
    width: 6.04rem;
    height: 3.73rem;

}
.p2-list .item .txt{
    position: absolute;
    top: 0;
    left: 0;
    width: 2.56rem;
    height: .47rem;
    background: url(../img/knowledge/p2-txt-bg.png) center no-repeat;
    background-size: 100%;
    font-size: .32rem;
    color: #fff;
    text-align: center;
    line-height: .47rem;
}
#tag2{
    padding-top: .7rem;
}
.p3-tit{
    margin-top: .55rem;
    margin-bottom: .45rem;
    font-size: .6rem;
    font-weight: bold;
    color: #3e3a39;
}
.p3-intro{
    margin-bottom: .45rem;
    font-size: .24rem;
    line-height: .4rem;
    text-align: justify;
    color: #595757;
}
.p3-list{
    position: relative;
    margin-top: -1.27rem;
}
.p3-list{
    display: flex;
    justify-content: space-between;
}
.p3-list .item{
    width: 45%;
    flex: 0  0 45%;
}
.p3-list .item-tit{
    margin: 0 auto .5rem auto;
    width: 2.54rem;
    height: 2.54rem;
    background: url(../img/knowledge/p3-txt-bg.png) center no-repeat;
    background-size: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: .6rem;
    line-height: 1.1em;
    color: #3e3a39;font-weight: bold;
}
.p3-list .item-desc{
    font-size: .24rem;
    line-height: .36rem;
    color: #595757;
    text-align: justify;
}
.p3 .data-origin{
    text-align: center;
    font-size: .2rem;
    color: #595757;
    margin: .65rem auto;
}
.p4{
    padding-top: .6rem;
}
.p4 .p4-cont{
    padding-bottom: .8rem;
    display: flex;
    justify-content: space-between;
}
.p4 .p4-cont .img-box{
    width: 6.15rem;
    height: 6.15rem;
    position: relative;
}
.p4 .p4-cont .img-box::before{
    content: '';
    position: absolute;
    width: 1rem;
    height: .85rem;
    background: #00da6b;
    left: -.1rem;
    top: -.1rem;
}
.p4 .p4-cont .img-box img{
    position: relative;
    z-index: 1;
}
.p4 .p4-cont .p4-left{
    width: 5.9rem;
}
.p4 .p4-cont .p4-left .p4-tit{
    margin-bottom: .4rem;
    font-size: .6rem;
    color: #3e3a39;
    font-weight: bold;
}
.p4 .p4-cont .p4-left .p4-intro p{
    font-size: .24rem;
    line-height: .36rem;
    color: #595757;
    text-align: justify;
    margin-bottom: .1rem;
}
.p4 .p4-other{
    margin-top: .25rem;
    padding-top: .25rem;
    border-top: 1px solid #595757;
    font-size: .19rem;
    color: #595757;
}
.p5{
    padding-top: .85rem;
    padding-bottom: 1.6rem;
    display: flex;
    justify-content: space-between;
}
.p5 .img-box{
    width: 5.09rem;
    height: 3.41rem;
    position: relative;
}
.p5 .img-box::before{
    content: "";
    position: absolute;
    width: 5.09rem;
    height: 3.41rem;
    background: #c2c2c2;
    right: -.1rem;
    bottom: -.1rem;
}
.p5 .img-box img{
     width: 5.09rem;
    height: 3.41rem;
    position: relative;
    z-index: 1;
}
.p5 .p5-cont{
    width: 6.9rem;
    flex: 0 0 6.9rem;
}
.p5 .p5-cont .p5-tit{
    margin-bottom: .45rem;
    font-size: .54rem;
    font-weight: bold;
    color: #3e3a39;
    letter-spacing: -2px;
}
.p5 .p5-cont .p5-tit span{
    color: #00da6b;
}
.p5 .p5-cont .p5-intro{
    font-size: .24rem;
    line-height: .36rem;
    color: #595757;
}