*,::after,::before{box-sizing:border-box}

.img-fluid{max-width:100%;height:auto}
.product{width:100%; float:left;margin:60px 0 30px; }
.product-content{width:1470px; margin: 0 auto}
.product-title{ width:100%; float:left; margin-bottom:70px;padding: 0 15px;text-align: center}
.product-title h2{ font-size:38px;letter-spacing: 0.1em;margin-bottom: 20px}
.product-title p{ font-size:17px;color: #444;line-height: 1.8em}
.productContainer{ width:100%; float: left; margin:0;font-size:0;}
.product-item{width:33.333333%;padding:0 15px;margin: 0 0 55px; display:inline-block; vertical-align:top;position:relative;}
.product-item{opacity: 0;-moz-transform: translateY(30px);-ms-transform: translateY(30px);-webkit-transform: translateY(30px);transform: translateY(30px);-moz-transition: opacity .8s, -moz-transform .8s;-o-transition: opacity .8s, -o-transform .8s;-webkit-transition: opacity .8s, -webkit-transform .8s;transition: opacity .8s, transform .8s;}
.product-item.show {opacity: 1;-moz-transform: translateY(0);-ms-transform: translateY(0);-webkit-transform: translateY(0);transform: translateY(0);}
.product-box {width: 100%; float: left; overflow: hidden;position: relative;margin: 0}
.product-box .product-box-img {width: 100%;float: left;margin-bottom: 15px}
.product-box .product-box-img img{max-width: 100%;height: auto;}
.product-box .product-boxinfo{width: 100%; box-sizing: border-box; display:block;text-align: center}
.product-box .product-boxinfo h2{position:relative;overflow:hidden;display:inline-block;margin:5px 0;font-size:18px; letter-spacing:0.05em;font-weight:500}
.product-box .product-boxinfo p{font-size: 14px; letter-spacing:0.05em;color: #555}
.product-box .product-boxinfo h2::after{content:" ";display:block; width: 0%;height: 2px;background-color: #000;transition: .3s .2s;}
.product-item:hover .product-boxinfo h2::after{width:100%;}
.banneritem{position:absolute; left:32px; top:15px;z-index:2;padding:3px 8px; border-radius:2px; color:#fff; font-size:12px;letter-spacing: 0.1em; text-align:center;width: auto;background-color: #1c4966}
.navFixed{z-index:10;position: fixed;top: 0;left: 0;margin-top: 0;min-width: 100%;opacity: 0.94;transition:opacity .5s ease-out; }

@media screen and (max-width: 1600px) {
.product{margin: 50px auto 0}
.product-content{width:90%}
.product-title{margin-bottom: 50px;}
}
@media screen and (max-width: 1200px) {
.product{margin:40px auto 10px; }
.product-content{width:93%}
.product-title h2{ font-size:34px;margin-bottom: 20px}
.product-item{padding:0 15px;margin: 0 0 45px}
}
@media only screen and (max-width: 980px) {
.product{margin:30px auto 10px; }
.product-item{width: 50%; padding:0 15px;margin-bottom:40px;}
.product-title{margin-bottom:30px; }
.product-title h2{ font-size:32px; margin-bottom:15px}
}
@media only screen and (max-width: 550px) {
.product{margin:25px auto 0}
.product-content{width:90%}
.product-title{margin-bottom: 20px; }
.product-title h2{ font-size:24px; margin-bottom:10px}
.product-item{width:100%;padding:0;margin-bottom: 35px;}
.product-box .product-box-img {margin-bottom: 10px}
}