.banner {
    height: 438px;
    background-size: cover;
    background-position: center;
}

.txt {
    position: relative;
    max-width: 1480px;
	padding-left:15px;
	padding-right:15px;
    top: 50%;
    margin: 0 auto;
    color: white;
    font-weight: bold;
    transform: translateY(-50%);
}

.txt p {
    max-width: 555px;
    margin-left: 0;
    margin-bottom: 15px;
	font-weight:bold;
}

.txt p.b {
    font-size: 30px;
}

.txt p.s {
    font-size: 25px;
}

.product-main {
    max-width: 1480px;
    margin: 0 auto;
    padding: 120px 0 200px;
	padding-left:15px;
	padding-right:15px;
}

.product-main .nav {
    margin-bottom: 40px;
    font-size: 0;
}

.product-main .nav li {
    display: inline-block;
    width: 160px;
    height: 55px;
	margin-bottom:5px;
    margin-right: 5px;
    border: 2px solid #ededed;
    vertical-align: middle;
    transition: all .3s;
    box-sizing: border-box;
}

.product-main .nav li a {
    display: block;
    height: 51px;
    line-height: 51px;
    color: #404040;
    font-size: 16px;
    text-align: center;
}

.product-main .nav li:hover,
.product-main .nav li.active {
	 background:#fbfbfb;
	 border: 2px solid #fbfbfb;
}

.product-main .list {
    display: flex;
    flex-wrap: wrap;
}

.product-main .list li:not(:nth-child(4n)) {
    margin-right: 15px;
}

.product-main .list li {
    position: relative;
    width: calc((100% - 45px)/4);
    height: 452px;
    margin-bottom: 20px;
    border: 2px solid #ededed;
    box-sizing: border-box;

}

.product-main .list li .putImg {
    transition: all .3s;
    overflow: hidden;
}

.product-main .list li .putImg img {
    display: block;
    max-width: 100%;
}

.product-main .list li:hover .putImg {
    transform: scale(1.2);
}

.product-main .list li a {
    display: block;
}

.product-main .list li .putImg {
    display: block;
    padding: 48px 33px 0;
}

.product-main .list li a .name {
    margin-top: 30px;
    font-size: 20px;
    text-align: center;
}

.product-view > .product-main {
    padding-bottom: 170px;
}

.product-view > .product-main > .title {
    margin-bottom: 45px;
    font-size: 30px;
    color: #282828;
}

.product-view .mid-title {
	font-weight:bold;
    margin-bottom: 55px;
    text-align: center;
    font-size: 30px;
    color: #2c2d32;
}

.product-view .topDetail {
    padding-top: 50px;
}

.product-view .topDetail > img {
    display: block;
    max-width: 100%;
    margin: 0 auto;
}

@media (max-width:1024px){
.product-main .list li{
	padding-bottom:5%;
	height:auto;
    width: 31.33%;
    margin: 1% 1% !important;
	}
.product-main{ padding-top:10%; padding-bottom:15% !important;}
.product-main .list li a .name{ font-size:16px;}
.product-view .mid-title{ font-size:40px;}
}

@media (max-width:768px){
.product-view .mid-title{ font-size:34px; margin-bottom:10%;}
.product-view > .product-main > .title{ font-size:20px; margin-bottom:5%;}
}


@media (max-width:480px){
.product-main .list li{ width: 48%;}
.product-main .nav li,.product-main .nav li a{ height:45px; line-height:45px; font-size:14px;}
.txt p.b{ font-size:18px;}
.txt p.s{ font-size:15px;}
.banner{ height:250px;}
.product-main .list li a .name{ font-size:14px;}
.product-view .mid-title{ font-size:24px;}

}