.section {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
}

@media screen and (min-width: 768px) {
    .section {
        padding-left: 5rem;
        padding-right: 5rem;
    }
}

@media screen and (min-width: 1024px) {
    .section {
        padding-left: 10rem;
        padding-right: 10rem;
    }

}
.pp2{font-size: 0.8rem;}
.bxo-sidle_item {
    color: var(--sub-color);
    width: 50px;
    text-align: center;
    line-height: normal;
}

.bxo-sidle_item span:before {
    content: "";
    display: block;
    background-color: var(--sub-color);
    height: 5px;
    width: 100%;
    margin-bottom: 1.5rem;
}
@media screen and (min-width: 500px) {
    .pp2{font-size: 1rem;}
}
/*section-alloy2-----------------------
-------------------------------------*/
.box-alloy2__bg {
    position: absolute;
    z-index: 2;
    bottom: -3px;
    left: 0;
    width: 100%;
    display: block;
}

.col-alloy2__R {
    position: relative;
    z-index: 3;
    padding-right: 2.5rem;
    padding-left: 2.5rem;
}

.col-alloy2__L {
    position: relative;
    z-index: 1;
    padding-left: 2.5rem;
    padding-right: 2.5rem;
}
.box-alloy2r-bg{
    background-color: var(--sub-color);
    width: 100%;
    height: 200px;
    position: absolute;
    z-index: 0;
    left:30px;
    bottom: -30px;
    display: none;
}
.box-alloy2r-youtu{
    position: relative;
    z-index: 1;
}
.box-alloy2--in__p img{
    width: 100%;
    height: auto;
}
.box-alloy2--in__w img{
    width: 80%;
}
@media screen and (min-width: 768px) {
    .col-alloy2__R {
        padding-right: 5rem;
        padding-left: 5rem;
    }

    .col-alloy2__L {
        padding-left: 5rem;
        padding-right: 5rem;
    }
}

@media screen and (min-width: 1024px) {
    .col-alloy2__R {
        padding-right: 10rem;
    }

    .col-alloy2__L {
        padding-left: 10rem;
    }
}
@media screen and (min-width: 1440px) {
    .col-alloy2__R {
        padding-left: 0rem;
    }

    .col-alloy2__L {
        padding-right: 0rem;
    }
    .box-alloy2__bg {
        display: block;
    }
}
/*section-alloy3-------------------------
-----------------------------------------*/
.section-alloy3{    
    background-color:#FDF5F1 ;
    padding-right: 2.5rem;
}
.box-alloy3l_p{
       z-index: 1;
}
.col-alloy3__R{
    padding-left: 2.5rem;
}
.box-alloy3l_bg{
    position: absolute;
    z-index: 0;
    background-color: var(--sub-color);
    width: 100%;
    height:150px;
    display: block;
    left: 20px;
    top: -20px;
}
.col-alloy3__L{
    flex:0 0 auto;
    width: 200px;
}
@media screen and (min-width: 768px) {
.section-alloy3{    
    padding-right:5rem;
}

}
@media screen and (min-width: 1024px) {
    .section-alloy3{    
        padding-right:10rem;
    }
    .col-alloy3__R{
        padding-left: 0rem;
    }
    .box-alloy3l_bg{
        height:150px;
         left: 30px;
        top: -30px;
    }
    }
/*section-alloy4--------------------------
----------------------------------------*/
.section-alloy4{
background-color: #FDF5F1;
background-image: url(../img/alloy/bg2.svg);
background-size:100% auto ;
background-position: left bottom;
background-repeat: no-repeat;
}


/*section-alloy5---------------------------
----------------------------------------------*/
.section-alloy5{background-color: #DEEFF2;
}

.box-pic{
    position: relative;
}
.box-pic img{ position: relative; z-index: 1;}
.box-pic::before,.box-pic::after{
    position: absolute;
    z-index: 0;
    content: "";
   height: 50px;
   display: block;
   background-color: var(--sub-color);
}
.box-pic::before{width:70px;
left: -20px;
top: -20px;}
.box-pic::after{width: 100px;
   right: -20px;
   bottom: -20px;}
 .box-page-t{
    color: #000;
 
   }
.box-page-tnum{
    background-color: var(--sub-color);
    border-radius: 50%;
    color: #ffffff;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    display: inline-block;
    margin-right:10px;
}
.article-chart{
    margin-top: var( --sectionpd);
}
.text-chart{
    color:#3d90c6
}
.list{margin-top: 2rem;;
    margin-bottom: 4rem;
}
.list li{ color:#3d90c6;
margin-bottom: 0.5rem;}
.col-list__t{
    flex:0 0 auto;
    width: 225px;
    background-color: #1e303a;
    color: #ffffff;
    border-radius: 3px;
    padding: 0.3rem;
}