body,ul,li,h2,h4{
    margin: 0;
    padding: 0;
    list-style: none;
}
a {
    margin: 0;
    padding: 0;
    text-decoration: none;
}

/* nav开始 */
.nav {
    width: 100%;
    height: 70px;
    position: relative; 
}
.nav-left {
    float: left;
    height: 50px;
    margin-top: 10px;
    margin-left: 2.6%;
   
}
.nav-left span {
    font-size: 12px;
    color: #999999;
    position: absolute;
    top: 0;
    left: 0;
}
.nav-left img {
    height: 100%;
}
.nav-list {
    width: 80%;
    height: 70px;
    float: right;
}
.nav-list li {
    float: right;
    display: block;
    font-size: 16px;
    line-height: 70px;
    position: relative;

}
.list-changping:hover .more-2{ 
    display: block;
}
.list-about:hover .more-1{ 
    display: block;
}

.nav-list li>a {
    color: #666;
    float: left;
    padding: 0 50px;
    box-sizing: border-box;
    height: 70px;
    line-height: 70px;
    overflow: hidden;
    font-weight: 550;
    z-index: 10;
}
.box {
    width: 100%;
    height: 0;
    position: absolute;
    top: 0;
    left: 0;
    background-color: blue;
    z-index: -1;
}
.more-1 {
    width: 750px;
    height: 70px;
    display: none;
    background-color: rgba(0, 0, 0,0.7);
    position: fixed;
    top: 70px;
    right: 0;
    transition: display 1s;
    z-index: 10;
}
.more-2 {
    width: 570px;
    height: 100px;
    display: none;
    background-color: rgba(0, 0, 0,0.7);
    position: fixed;
    top: 70px;
    right: 0;
    z-index: 10;
}
.more-1 a {
    display: block;
    float: left;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    margin-top: 10px;
    line-height: 30px;
    margin-right: 5%;
    padding: 5px 0;
}
.more-2 a {
    display: block;
    float: left;
    font-weight: 500;
    font-size: 14px;
    color: #fff;
    margin-top: 10px;
    line-height: 30px;
    margin-right: 5%;
    padding: 5px 0;
}
/* nav结束 */

/* banner开始 */
.banner {
    width: 100%;
    height: 674px;
    position: relative;
    overflow: hidden;
}
.banner-box {
    width: 400%;
    height: 100%;
}
.banner-box a {
    float: left;
    width: 25%;
    height: 100%;
    position: relative;
}
.banner-box a>img{
    width: 100%;
    height: 674px;
}
.smbanner-1 {
    position: absolute;
    left: 5%;
    top:35%;
    width: 68% ;
    height: 200px;
}
.smbanner-2 {
    position: absolute;
    left: 16%;
    top:16%;
    width: 68% ;
    height: 200px;
}
.smbanner-1,.smbanner-2 img {
    width: 100%;
}
.banner-btns {
    width: 180px;
    height: 10px;
    position: absolute;
    bottom: 30px;
    left: 0;
    right: 0;
    margin: auto;
    text-align: center;
}
.banner-btns li {
    background-color: #fff;
    opacity: 1;
    width: 40px;
    height: 6px;
    border-radius: 3px;
    margin: 0 10px;
    text-align: center;
    float: left;
    cursor: pointer;
}
.banner-btns li:nth-child(1){
    background-color: blue;
}
/* banner结束 */
/* date开始 */
.date {
    width: 100%;
    height: 264px;
}
.gundong {
    width: 85%;
    margin: 0 auto;
    overflow: hidden;
    padding: 85px 0px;
    box-sizing: border-box;
}
.gundong-top {
    overflow: hidden;
    text-align: center;
}
.gundong-list li {
    width: 25%;
    height: 94.8px;
    float: left;
}
.gundong-top .big-number {
    font-size: 44px;
    color: #0054a8;
    font-weight: bold;
    display: inline-block;
}
.gundong-top .small {
    font-size: 12px;
    color: #0054a8;
    margin-top: 15px;
    display: inline-block;
    position: absolute;
}
.gundong-bottom {
    overflow: hidden;
    font-size: 18px;
    color: #666666;
    /* margin-top: px; */
    text-align: center;
}
/* date结束 */
/* about开始 */
.about {
    width: 100%;
    height: 412px;
    overflow: hidden;
    background-color: #0054a8;
}
.about-left {
    width: 50%;
    float: left;
    padding-top: 40px;
    overflow: hidden;
}
.about-right {
    width: 50%;
    float: right;
}
.about-fw {
    width: 90%;
    overflow: hidden;
}
.about-bt {
    width: 100%;
    overflow: hidden;
    padding-left: 35%;
    box-sizing: border-box;
    margin-bottom: 25px;
}
.bt-china {
    width: 100%;
    overflow: hidden;
    margin-bottom: 5px;
}
.china-icon {
    width: 22px;
    float: left;
    margin-right: 20px;
    margin-top: 5px;
}
.china-icon img {
    width: 100%;
}
.china-zi {
    font-size: 24px;
    color: #fff;
    font-weight: bold;
    float: left;
}
.bt-eng {
    width: 100%;
    font-size: 14px;
    color: #fff;
    text-transform: uppercase;
    padding-left: 7%;
}
.line {
    width: 42%;
    height: 1px;
    background-color: #7aa6d2;
    position: relative;
    margin-bottom: 40px;
}
.about-p {
    width: 100%;
    overflow: hidden;
    font-size: 14px;
    color: #fff;
    line-height: 24px;
    padding-left: 39.5%;
    box-sizing: border-box;
    margin-bottom: 30px;
}
.about-more {
    width: 100%;
    padding-left: 39.5%;
    height: 60px;
    box-sizing: border-box;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}
.more-dw {
    position: absolute;
    width: 100%;
    overflow: hidden;
    top: 0px;
    left: 0px;
    z-index: 10;
    padding-left: 39.5%;
    box-sizing: border-box;
}
.more-zi {
    float: left;
    font-size: 16px;
    color: #ffffff;
    line-height: 60px;
    text-transform: uppercase;
}
.more-icon {
    width: 16px;
    float: right;
    margin-right: 5%;
    margin-top: 15px;
}
.more-icon img {
    width: 100%;
}
.about-box {
    width: 0;
    height: 100%;
    background-color: blue;
    opacity: 0.3;
    position: absolute;
    left: 0;
    top: 0;
}
/* about结束 */
/* product开始 */
.product {
    width: 100%;
    overflow: hidden;
    background-color: #f2f2f2;
    padding: 100px 0px;
    box-sizing: border-box;
}
.product-bt {
    overflow: hidden;
    width: 39%;
  
}
.product-text {
    padding-left: 40.4%;
    box-sizing: border-box;
    width: 100%;
    overflow: hidden;
    margin-bottom: 25px;
}
.product-zi {
        font-size: 24px;
        color: #000;
        font-weight: bold;
        float: left;
}
.product-eng {
        width: 100%;
        font-size: 14px;
        color: #999;
        text-transform: uppercase;
        padding-left: 7%;
        font-weight: bold;

}
.line2 {
    background-color: #d9d9d9;
    position: relative;
    width: 48%;
    margin-bottom: 25px
}
.product-swiper {
    width: 74.9%;
    height: 218px;
    overflow: hidden;
    margin: 0 auto;
    position: relative;
}
.swiper-left {
    width: 52px;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    cursor: pointer;
    line-height: 200px;
    font-size: 50px;
    color: blue;
}
.swiper-right {
    width: 52px;
    height: 100%;
    position: absolute;
    top: 0;
    right: 0;
    cursor: pointer;
    line-height: 200px;
    font-size: 50px;
    color: blue;
}
.swiper-list {
    width: 90%;
    height: 100%;
    margin: 0 auto;
    overflow: hidden;
}
.swiper-list ul {
    height: 100%;

}
.swiper-list ul li {
    width: 328px;
    margin-right: 15px;
    float: left;
}
.pro-one {
    border-radius: 15px;
    overflow: hidden;
    position: relative;
}
.pro-one img {
    width: 100%;
    border-radius: 20px;
    overflow: hidden;
}
/* product结束 */
/* news开始 */
.news {
    width: 100%;
    overflow: hidden;
    background-color: #f2f2f2;
    position: relative;
}
.news-dw {
    width: 62%;
    overflow: hidden;
    background-color: #fff;
    position: absolute;
    right: 0px;
    top: 0px;
    height: 140px;
    padding-right: 15.6%;
    padding-top: 3.5%;
    box-sizing: border-box;
    text-align: left;
    padding-left: 4%;
    box-sizing: border-box;
}
.news-dw li {
    font-size: 16px;
    line-height: 35px;
    color: #333333;
    padding: 0px 30px;
    box-sizing: border-box;
    display: inline-block;
    background-color: #f1f1f1;
    border-radius: 5px;
    margin-left: 5%;
    cursor: pointer;
    /* background-color: #0054a8;
    color: #fff; */
}
.news-nr {
    width: 100%;
    background-color: #fff;
    padding: 80px 0px;
    box-sizing: border-box;
    display: none;
}
.news-fw {
    width: 69%;
    margin: 0 auto;
    overflow: hidden;
}
.news-left {
    width: 32.5%;
    float: left;
    overflow: hidden;
}
.news-pic {
    width: 100%;
    overflow: hidden;
    margin-bottom: 25px;
}
.news-pic img {
    width: 100%;
}
.news-xq {
    width: 100%;
    overflow: hidden;
    border-bottom: 1px solid #3385ff;
    padding-bottom: 25px;
    box-sizing: border-box;
}
.xq-left {
    float: left;
    width: 17%;
    overflow: hidden;
}
.news-date {
    width: 100%;
    text-align: center;
    font-size: 36px;
    color: #0054a8;
    font-weight: bold;
}
.news-year {
        width: 100%;
        text-align: center;
        font-size: 14px;
        color: #666666;
}
.xq-right {
    width: 72%;
    float: right;
    overflow: hidden;
}
.xq-right h2 {
    font-size: 18px;
    color: #333;
    font-weight: bold;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 25px;
}
.news-p {
    width: 100%;
    font-size: 14px;
    line-height: 24px;
    color: #666666;
}   
.news-right {
    width: 60%;
    float: right;
    overflow: hidden;
}
.news-list {
    width: 100%;
    overflow: hidden;
}
.news-list li {
    width: 100%;
    overflow: hidden;
    border-bottom: 1px solid #e6e6e6;
    padding-bottom: 20px;
    margin-bottom: 20px;
    box-sizing: border-box;
}
/* news结束 */
/* 底部开始 */
.bottom {
    width: 100%;
    overflow: hidden;
    background-color: #242424;
}
.bottom-fw {
    width: 87%;
    overflow: hidden;
    margin: 0 auto;
    padding: 10px 4% 5px 0px;
    box-sizing: border-box;
}
.bottom-list {
    width: 100%;
    overflow: hidden;
}
.bottom-list li {
    overflow: hidden;
    float: left;
    width: 33.3%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.bottom-icon {
    width: 40px;
    overflow: hidden;
    float: left;
    margin-right: 14px;
}
.bottom-icon img {
    width: 100%;
}
.bottom-list li h4 {
    font-size: 13px;
    line-height: 34px;
    color: #999999;
    float: left;
}
.zhichi {
    width: 100%;
    text-align: left;
    font-size: 14px;
    line-height: 30px;
    color: #5c5c5c;
    background-color: #242424;
    padding: 0px 15px;
    box-sizing: border-box;
}
.zhi-fw {
    width: 73%;
    overflow: hidden;
    margin: 0 auto;
}
/* 底部结束 */