/**
 * banner styles
 **/
.swiper-pagination-bullet{
    width: 60px;
    height: 4px;
    background-color: #FFFFFF;
    border-radius: 0;
    opacity: 1;
}
.swiper-pagination-bullet-active{
    background-color: #E60012;
}


/**
 * hot products styles
 **/
.hot-products{
    width: 70%;
    margin: 80px auto 60px;
}
.hot-products .hot-products-list{
    width: 100%;
    margin-top: 60px;
}
.hot-products .hot-products-list .hot-products-item{
    width: 23.5%;
    margin-right: 2%;
    margin-bottom: 20px;
    float: left;
    box-shadow: 0px 0px 10px 1px rgba(0,0,0,0.16);
    position: relative;
    overflow: hidden;
}
.hot-products .hot-products-list .hot-products-item:nth-child(4n){
    margin-right: 0;
}
.hot-products .hot-products-list .hot-products-item .hot-products-item-img{
    width: 100%;
    aspect-ratio: 1 / 1; /* 1:1 的宽高比，即高度等于宽度 */
}
.hot-products .hot-products-list .hot-products-item .hot-products-item-img img{
    width: 100%;
    height: 100%;
}
.hot-products .hot-products-list .hot-products-item .hot-products-item-title{
    width: 90%;
    height: 64px;
    margin: 0 auto;
    padding: 10px 0;
    font-family: Arial, Arial;
    font-weight: bold;
    font-size: 16px;
    color: #262626;
    line-height: 27px;
    border-bottom: 1px solid #E6E6E6;
    display: -webkit-box;          /* 将元素设置为弹性盒子 */
    -webkit-box-orient: vertical;  /* 设置内容垂直排列 */
    -webkit-line-clamp: 2;         /* 限制显示的行数 */
    overflow: hidden;              /* 隐藏超出部分 */
    text-overflow: ellipsis;       /* 超出部分显示省略号 */
}
.hot-products .hot-products-list .hot-products-item .hot-products-item-more{
    width: 90%;
    margin: 0 auto;
    padding: 10px 0;
    font-family: Arial, Arial;
    font-size: 14px;
    color: #999999;
}
.hot-products .hot-products-list .hot-products-item .hot-products-item-more img{
    margin-left: 10px;
}
.hot-products .hot-products-list .hot-products-item .product_list_item_layer{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(255,255,255,0);
    padding: 30px 5%;
    transition: all 0.5s ease-in-out; /* 添加过渡效果 */
}
.hot-products .hot-products-list .hot-products-item:hover .product_list_item_layer{
    top: 0;
    background: rgba(255,255,255,0.9);
}
.hot-products .hot-products-list .hot-products-item .product_list_item_layer .hot-products-item-layer-title{
    height: 54px;
    font-family: Arial, Arial;
    font-weight: bold;
    font-size: 16px;
    color: #333333;
    line-height: 24px;
}
.hot-products .hot-products-list .hot-products-item .product_list_item_layer .hot-products-item-layer-apply{
    font-family: Arial, Arial;
    font-size: 14px;
    color: #333333;
    line-height: 20px;
    /*margin-top: 20px;*/
}
.hot-products .hot-products-list .hot-products-item .product_list_item_layer .product_list_item_btn_submit {
    position: absolute;
    left: 5%;
    bottom: 60px;
    width: 45%;
    height: 36px;
    background: #E60012;
    font-family: Arial, Arial;
    font-size: 12px;
    color: #FFFFFF;
    line-height: 36px;
    text-align: center;
    cursor: pointer;
}
.hot-products .hot-products-list .hot-products-item .product_list_item_layer .product_list_item_btn_download {
    position: absolute;
    left: 50%;
    bottom: 60px;
    width: 45%;
    height: 36px;
    border: 1px solid #F39800;
    font-family: Arial, Arial;
    font-size: 12px;
    color: #F39800;
    line-height: 36px;
    text-align: center;
    cursor: pointer;
}


/**
 * about styles
 **/
.about{
    width: 70%;
    margin: 80px auto 60px;
}
.about .about-content{
    width: 100%;
    margin-top: 60px;
}
.about .about-content .about-content-left{
    width: 56%;
    float: left;
    display: grid;
}
.about .about-content .about-content-left .about-content-left-title{
    font-family: Arial, Arial;
    font-weight: bold;
    font-size: 30px;
    color: #E60012;
    line-height: 30px;
}
.about .about-content .about-content-left .about-content-left-text{
    font-family: Arial, Arial;
    font-size: 16px;
    color: #333333;
    line-height: 30px;
    margin-top: 20px;
}
.about .about-content .about-content-left .about-content-left-more{
    width: 181px;
    height: 46px;
    font-family: Arial, Arial;
    font-size: 14px;
    color: #999999;
    line-height: 46px;
    text-align: center;
    border: 1px solid #E6E6E6;
    margin-top: 30px;
    cursor: pointer;
}
.about .about-content .about-content-left .about-content-left-more:hover{
    background: #E60012;
    color: #FFFFFF;
    border-color: #E60012;
}
.about .about-content .about-content-left .about-content-left-more .about-content-left-more-active-img{
    display: none;
}
.about .about-content .about-content-left .about-content-left-more:hover .about-content-left-more-active-img{
    display: inline-block;
}
.about .about-content .about-content-left .about-content-left-more:hover .about-content-left-more-default-img{
    display: none;
}
.about .about-content .about-content-right{
    width: 40%;
    float: right;
}
.about .about-content .about-content-right img{
    width: 100%;
}

.about .about-engineering{
    width: 100%;
    height: 120px;
    margin-top: 60px;
    border-top: 1px solid #E6E6E6;
    border-bottom: 1px solid #E6E6E6;
}
.about .about-engineering .about-engineering-item{
    width: 25%;
    margin: 25px 0;
    padding-left: 20px;
    padding-right: 20px;
    float: left;
    font-size: 16px;
    color: #333333;
    border-right: 1px solid #E6E6E6;
    position: relative;
}
.about .about-engineering .about-engineering-item .about-engineering-item-num{
    font-family: Arial, Arial;
    font-weight: bold;
    font-size: 30px;
    color: #262626;
    line-height: 30px;
}
.about .about-engineering .about-engineering-item .about-engineering-item-title{
    font-family: Arial, Arial;
    font-size: 14px;
    color: #333333;
    line-height: 30px;
    margin-top: 10px;
}
.about .about-engineering .about-engineering-item:last-child{
    border-right: none;
}
.about .about-engineering .about-engineering-item img{
    position: absolute;
    right: 10px;
    top: 5px;
}


/**
 * service styles
 **/
.service{
    width: 70%;
    margin: 80px auto 60px;
}
.service .service-list{
    width: 100%;
    height: 345px;
    background: #FFFFFF;
    box-shadow: 0 0 10px 1px rgba(0,0,0,0.16);
    margin-top: 60px;
}
.service .service-list .service-item{
    width: 20%;
    height: 100%;
    float: left;
    text-align: center;
    border-right: 1px solid #E6E6E6;
    padding: 60px 1%;
}
.service .service-list .service-item:last-child{
    border-right: none;
}
.service .service-list .service-item .service-item-img{
    width: 120px;
    height: 120px;
    margin: 40px auto 0;
}
.service .service-list .service-item .service-item-title{
    font-family: Arial, Arial;
    font-weight: bold;
    font-size: 16px;
    color: #333333;
    line-height: 30px;
    margin-top: 20px;
    height: 60px;
}
/* todo 动画效果 */


@media only screen and (min-width: 1050px) and (max-width: 1440px) {
    .hot-products,.about,.service{
        width: 80%;
    }
    .about .about-engineering .about-engineering-item .about-engineering-item-num{
        font-size: 24px;
    }
    .about .about-engineering .about-engineering-item .about-engineering-item-title{
        font-size: 12px;
    }
    .about .about-engineering .about-engineering-item img{
        width: 40px;
    }
    .about .about-content .about-content-left .about-content-left-text{
        font-size: 14px;
        line-height: 20px;
    }
    .hot-products .hot-products-list .hot-products-item .hot-products-item-title{
        font-size: 14px;
    }
}
@media only screen and (max-width: 1050px) {
    .hot-products,.about,.service{
        width: 85%;
    }
    .about .about-engineering .about-engineering-item .about-engineering-item-num{
        font-size: 20px;
    }
    .about .about-engineering .about-engineering-item .about-engineering-item-title{
        font-size: 10px;
    }
    .about .about-engineering .about-engineering-item img{
        width: 30px;
    }
    .about .about-content .about-content-left .about-content-left-text{
        font-size: 12px;
        line-height: 18px;
    }
    .hot-products .hot-products-list .hot-products-item .hot-products-item-title{
        font-size: 12px;
    }

    .service .service-list{
        height: auto;
    }
    .service .service-list .service-item{
        padding: 30px 1%;
    }
    .service .service-list .service-item .service-item-img{
        width: 80px;
        height: 80px;
    }
    .service .service-list .service-item .service-item-img img{
        width: 100%;
        height: 100%;
    }
}