* {
    margin: 0;
    padding: 0;
    outline: none;
    border: 0;
    font-family: sans-serif;
    /*overflow-x: hidden;*/
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
}

*:focus {
    outline: none;
}

a {
    text-decoration: none;
    color: #3e3e3e;
    display: block;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border: 0;
    pointer-events: none;
}

img[src=""],
img:not([src]) {
    opacity: 0;
}

button,
input,
optgroup,
select,
textarea {
    margin: 0;
    border: 0;
    font: inherit;
    color: inherit;
    outline: none;
    -webkit-appearance: none;
}





.all {
    width: 100%;
}

.w1200 {
    width: 1200px;
    margin: auto;
    overflow: hidden;
}

.left {
    float: left;
}

.right {
    float: right;
}

/* header */





main .w1200 {
    width: 1202px;
    background: #fff;
   margin-bottom: 35px;
}

#tabs_nav a.active{
    color:#1677ff;
    border-bottom: #3B89F6 2px solid;

}

/*清除浮动*/

.cf:after {
    display: block;
    content: '';
    height: 0;
    visibility: hidden;
    clear: both;
}

.cf {
    zoom: 1;
}



header {
    margin: 20px 0;
}

header nav {
    transform: translate(0, 50%);
}

/*菜单栏*/
nav ul li {
    float: left;
    font-weight: 600;
font-size: 16px;
text-align: center;
color: #3b89f6;
padding:0 42px;
height: 35px;
line-height: 35px;
}
nav ul li a{
    height: 30px;
    line-height: 30px;
    padding-bottom: 32px;
}

nav ul li a:hover{
    color:#3B89F6;
    border-bottom: #3B89F6 2px solid;
}
/*end 菜单栏*/

.img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner img {
    width: 100%;
    max-width: 1920px;
    height: 400px;
    margin: auto;
}
.banner{
    position: relative;
    width: 100%;
    margin:auto;
}
.banner .text{
    position: absolute;
    width: 1200px;
    top: 40%;
    left: 0;
    left: 50%;
    transform: translate(-50%, 0);
}
.banner .text p{
    font-weight: 300;
font-size: 40px;
text-align: left;
color: #fff;
font-weight:bold;
}
.banner .text span{
    font-weight: 300;
font-size: 20px;
text-align: left;
color: #fff;
display: block;
width:850px;
}

/*主体*/

/*产品列表*/
.cplb {
    margin-top: 40px;
}

.cplb ul li {
    float: left;
    width: 23.75%;
    margin-right: 1.66%;
    text-align: center;
}

.cplb ul li:last-child {
    margin-right: 0;
}

.cplb ul li .img {
    position: relative;
    width: 100%;
    object-fit: cover;
}

.cplb ul li .img img,
.cplb ul li a {
    width: 100%;
    height: 100%;
}
.cplb .name:hover{
    color:#16ff44ed;
}

.cplb ul li .name {
    background: url(bg-cplb.png) no-repeat left center;
    position: absolute;
    width: 100%;
    bottom: 0;
    font-family: "PingFangSC-Semibold ";
    font-weight: 400;
    font-size: 24px;
    text-align: center;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    height: 38px;
    line-height: 38px;
}

/*产品中心*/
.cpzx {
    margin-top: 20px;
}

.cp-box {
    height: 51px;
}

.cpzx .cp-box .title {
    font-family: ".PingFang SC";
    font-weight: 400;
    font-size: 26px;
    text-align: center;
    color: #333;
    padding-right: 45px;
}

.cpzx .cpzxbg {
    background: url(cpzxbg.png) no-repeat left center;
    height: 20px;

}

/*产品中心列表*/
.cpzx-list {
    margin: 25px 0;
}

.cpzx-list ul li {
    background: url(mbz77.png) no-repeat left center;
    float: left;
    width: 15%;
    margin-right: 1.99%;
    height: 111px;
    opacity: 0.8;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);

    text-align: center;
}

.cpzx-list ul li:last-child {
    margin-right: 0;
}

.cpzx-list li a {
    display: block;
    width: 100%;
    height: 100%;
    padding-top: 30px;
}

.cpzx-list .name {
    font-family: "PingFang HK Semibold";
    font-weight: 600;
    font-size: 22px;
    color: #333;
}

.cpzx-list .yw {
    font-family: ".PingFang SC Light";
    font-weight: 300;
    font-size: 12px;
    color: #333;
}
.cpzx-list .tb{

    /*display: none;*/
     width: 28px;
        height: 28px;
        margin:auto;

}
.cpzx-list li:hover div{
    color:#fff;
}
.cpzx-list li:hover{
    background: #1677ff;
    opacity: 0.8;
    color:#fff;
}