html, body{
    font-size: 0.83vw;
}

/*  中间内容 */
.product_next_level{
    width: 100%;
}
/* banner */
.product_next_level .banner{
    position: relative;
    text-align: center;
}
.product_next_level .banner img{
    display: block;
}
.banner_text{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    font-size: 5rem;
    color: #FFF;
    font-weight: bold;
    /*text-shadow:0px 0px 15px #333333;*/
    text-align: center;
    line-height: 1.2;
    background: rgba(0,0,0,0.18);
}
.banner_text_second{
    margin-top: 1rem;
    font-size: 2.25rem;
    font-family:  PingFang SC,PingFangSC-Regular, "Microsoft YaHei",Helvetica,"微软雅黑Light", serif;
    font-weight: bold;
    color: #FFFFFF;
}
/* 标题 */
.subtitle{
    width: 100%;
    height: 4.06rem;
    font-size: 2.88rem;
    font-family:  PingFang SC,PingFangSC-Regular, "Microsoft YaHei",Helvetica,"微软雅黑Light", serif;
    font-weight: bold;
    color: #000000;
    opacity: 1;
    text-align: center;
    margin: 6.25rem 0 6.06rem;
    position: relative;
}
.subtitle::after{
    content: "";
    width: 10.38rem;
    height: 0.25rem;
    background: #76B72B;
    opacity: 1;
    position: absolute;
    left: 0;
    right:0;
    margin: 0 auto;
    bottom: -1rem;
}

/* 产品列表 */
.product_list{
    width: 100%;

}

/* 单个产品 */
.product_list_item{
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.94rem;
}
/* 产品图片 */
.product_img{
    width: 39.27%;
    height: 65rem;
    flex-shrink: 0;
    /*background: #EEEEEE;*/
    background-image: url("/images/product/1.png");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}
/* 产品文字主体 */
.product_right_main{
    width: 100%;
    height: 65rem;
    /*background: red;    */
    box-sizing: border-box;
    padding: 4.75rem 7.44rem 4rem 5.4rem;
    border-top: 1px solid #707070;
    border-bottom: 1px solid #707070;
    /*display: flex;*/
    /*flex-direction: column;*/
    /*justify-content: space-between;*/
}
/* 产品标题 */
.product_title{
    width: 100%;
    height: 4.06rem;
    font-size: 2.88rem;
    font-family:  PingFang SC,PingFangSC-Regular, "Microsoft YaHei",Helvetica,"微软雅黑Light", serif;
    font-weight: bold;
    line-height: 1.4;
    color: #76B72B;
    margin-bottom: 1.94rem;
}
/* 产品特性 */
.product_advantage{
    width: 100%;
    height: 12.69rem;
    font-size:1.75rem;
    font-family:  PingFang SC,PingFangSC-Regular, "Microsoft YaHei",Helvetica,"微软雅黑Light", serif;
    /*font-weight: 500;*/
    line-height: 2.5rem;
    color: #666666;
    margin-bottom: 1.69rem;
}
/* 产品特性标题 */
.product_advantage_title{
    width: 100%;
    color: #000000;
    font-weight: bold;
}
/* 产品特特性内容 */
.product_advantage_item{
    width: 100%;
    box-sizing: border-box;
    padding-left: 1em;
    position: relative;
}
/* 产品icon */
.product_advantage_item::after{
    content: "";
    width: 0.63rem;
    height: 0.63rem;
    background: #76B72B;
    border-radius: 50%;
    position: absolute;
    left: 0.19rem;
    top: 0.94rem;
}
/* 应用行业 */
.product_industry{
    width: 100%;
    font-size:1.75rem;
    font-family:  PingFang SC,PingFangSC-Regular, "Microsoft YaHei",Helvetica,"微软雅黑Light", serif;
    /*font-weight: 500;*/
    line-height: 2.5rem;
    margin-bottom: 4.63rem;
}
/* 应用行业标题 */
.product_industry_title{
    width: 100%;
    color: #000000;
    font-weight: bold;
}
/* 应用行业描述 */
.product_industry_desc{
    width: 100%;
    /*min-height: 84px;*/
    height: 5rem;

    color: #666666;
    margin-bottom: 1.375rem;
}
/* 应用行业描述列表 */
.product_industry_list{
    width: 100%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;

}
/* 应用行业描述列表中内容 */
.product_industry_list_item{
    width: 31.25%;
    /*margin-bottom: 30px;*/
}
.product_industry_list_item:nth-child(3n-1){
    margin: 0 3.12%;
}
.product_industry_list_item:last-child{
    margin-right: auto;
}
.product_industry_list_item:nth-child(3n){
    margin-right: 0;
}
/* 应用行业描述列表中内容图片 */
.product_industry_list_item_img{
    width: 100%;
    height: 13.125rem;
    box-sizing: border-box;
    background-color: #FFFFFF;
    border: 1px solid #76B72B;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    /*background-repeat: no-repeat;*/
    /*background-position: center;*/
    /*background-size: contain;*/
}
.product_industry_list_item_img >img{
    width: 100%;
    /*height: 100%;*/
}
/* 应用行业描述列表中内容标题 */
.product_industry_list_item_title{
    width: 100%;
    height: 3.125rem;
    background: #76B72B;
    color: #FFFFFF;
    text-align: center;
    line-height: 3.13rem;
    font-size: 1.63rem;
    font-family:  PingFang SC,PingFangSC-Regular, "Microsoft YaHei",Helvetica,"微软雅黑Light", serif;
    font-weight: bold;
}
/* 证书类型 */
.product_certificate{
    width: 100%;
    display: flex;
    align-items: flex-end;
    flex-wrap: wrap;

}
/* 单个证书 */
.product_certificate > img{
    height: 6.5rem;
    width: auto;
    margin-right: 3rem;
}
.product_certificate > img:last-child{
    margin-right: 0 !important;
}
.product_certificate > img.efsa{
    height:5.69rem;
    margin-bottom: 1rem;
}
.product_certificate > img.fda{
    height: 4.25rem;
    margin-bottom: 1rem;
}
.product_certificate > img.pcr{
    height: 6rem;
    margin-top: 0.69rem;
}
.product_certificate > img.filter{
    height: 4.74rem;
    margin-bottom: 0.75rem;
}
.product_certificate > img.recycling{
    height: 5.31rem;
    margin-bottom: 0.31rem;
}

@media screen and (max-width: 650px){
    .banner_text{
        font-size: 2.8rem;
    }
    .banner_text_second{
        font-size: 1rem;
    }
    .subtitle{
        font-size: 2.4rem;
        margin: 2.25rem 0 2.31rem;
    }
    .subtitle::after{
        bottom: -0.5rem;
    }
    .product_list_item{
        flex-direction: column;
    }
    .product_img{
        width: 100%;
        height: 100vw;
    }
    .product_right_main{
        height: auto;
        padding: 1.5rem;
    }
    .product_title{
        margin-bottom: 0.5rem;
    }
    .product_industry_list_item_img{
        height: 9.13rem;
    }
    .product_advantage,.product_industry_desc{
        height: auto;
    }
    .product_industry{
        margin-bottom: 1.69rem;
    }
}
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