/* 焦距fouces 部分  开始 */
/* 背景视频不会随着缩放变化 开始*/
.fouces {
    position: relative;
    top: -90px;
    left: 0;
    right: 0;
    height: calc(100vh - 1px);
    overflow: hidden;
    transition: all 1s;
}

.fouces>video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 1s;
    visibility: hidden;
    z-index: -99;
    transition: all .3s;
}

.fouces .active {
    visibility: visible !important;
    z-index: -1 !important;

}

/* 背景视频不会随着缩放变化 结束*/
.fouces .cover {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -568px;
    width: 1136px;
    height: 320px;
    text-align: center;
    transition: all 1s;
}

.fouces .cover h4 {
    color: #fff;
    transition: all .3s;
}

.fouces .cover .cartype {
    display: block;
    width: 145px;
    height: 45px;
    margin: 20px auto 32px;
    font-size: 36px;
    line-height: 45px;
    color: #fff;
    transition: all .3s;
}

/* 探索详情模块 开始 */
.fouces .cover a {
    position: relative;
    font-size: 12px;
    color: #fff;
    z-index: 1000;
}

/* 探索详情后面的图标 */
.fouces .cover a img {
    width: 38px;
    height: 38px;
}

/* 探索详情模块 结束 */
/* 加载圈与点点模块 开始 */
.fouces .cover ul {
    position: absolute;
    left: 50%;
    bottom: 0;
    margin-left: -100px;
    width: 200px;
    height: 30px;
    display: flex;
    justify-content: center;
}

.fouces .cover ul li {
    float: left;
    display: block;
    width: 6px;
    height: 6px;
    margin-left: 12px;
    margin-top: 5px;
    border-radius: 50%;
    background-color: #fff;
    transition: all .3s;
}

/* 选中加载圈 开始 */
.loading {
    display: block;
    width: 12px !important;
    height: 12px !important;
    background: transparent !important;
    margin-top: 2px !important;
    aspect-ratio: 1;
    border: 3px solid #ddd;
    border-radius: 50%;
    position: relative;
    transform: rotate(45deg);
    transition: all .3s;
}

.loading::before {
    content: "";
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 3px solid #cc2532;
    animation: l18 10s infinite linear;
}

@keyframes l18 {
    0% {
        clip-path: polygon(50% 50%, 0 0, 0 0, 0 0, 0 0, 0 0)
    }

    25% {
        clip-path: polygon(50% 50%, 0 0, 100% 0, 100% 0, 100% 0, 100% 0)
    }

    50% {
        clip-path: polygon(50% 50%, 0 0, 100% 0, 100% 100%, 100% 100%, 100% 100%)
    }

    75% {
        clip-path: polygon(50% 50%, 0 0, 100% 0, 100% 100%, 0 100%, 0 100%)
    }

    100% {
        clip-path: polygon(50% 50%, 0 0, 100% 0, 100% 100%, 0 100%, 0 0)
    }
}

/* 选中加载圈 结束 */
/* 加载圈与点点模块 开始 */
/* 下箭头到下滑提示 开始 */

.downward_1 {
    position: absolute;
    bottom: 80px;
    left: 50%;
    margin-left: -20px;
    width: 40px;
    height: auto;
}

.container {
    position: relative;
    width: 24px;
    height: 24px;
}

.chevron {
    position: absolute;
    width: 28px;
    height: 8px;
    opacity: 0;
    transform: scale3d(0.5, 0.5, 0.5);
    animation: move 3s ease-out infinite;
}

.chevron:first-child {
    animation: move 3s ease-out 1s infinite;
}

.chevron:nth-child(2) {
    animation: move 3s ease-out 2s infinite;
}

.chevron:before,
.chevron:after {
    content: ' ';
    position: absolute;
    top: 0;
    height: 100%;
    width: 51%;
    background: #fff;
}

.chevron:before {
    left: 0;
    transform: skew(0deg, 30deg);
}

.chevron:after {
    right: 0;
    width: 50%;
    transform: skew(0deg, -30deg);
}

@keyframes move {
    25% {
        opacity: 1;
    }

    33% {
        opacity: 1;
        transform: translateY(30px);
    }

    67% {
        opacity: 1;
        transform: translateY(40px);
    }

    100% {
        opacity: 0;
        transform: translateY(55px) scale3d(0.5, 0.5, 0.5);
    }
}

.container_text {
    display: block;
    margin-top: 75px;
    margin-left: -30px;
    font-family: "Helvetica Neue", "Helvetica", Arial, sans-serif;
    font-size: 12px;
    color: #fff;
    text-transform: uppercase;
    white-space: nowrap;
    opacity: .25;
    animation: pulse 2s linear alternate infinite;
}

@keyframes pulse {
    to {
        opacity: 1;
    }
}

/* 左右箭头部分 可同下面使用 */
.fouces_btn {
    position: relative;
    top: 25%;
    z-index: 999;
    height: 70%;
    opacity: 0;
}

.prev,
.next {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 35%;
    margin-top: 33px;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, .4);
    cursor: pointer;
    transition: all .5s;
}

.prev img {
    width: 48px;
    height: 48px;
    margin-left: -10px;
}

.next img {
    width: 48px;
    height: 48px;
}

.prev {
    left: 4.5%;
}

.next {
    right: 4.5%;
}

/* 下箭头到下滑提示 结束 */
/* 焦距fouces 部分 结束 */

/* 介绍 introduce部分 开始 */
.introduce {
    position: relative;
    left: 0;
    right: 0;
    top: -50px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin: 0 auto;
}

.introduce_prev,
.introduce_next {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 50%;
    margin-top: -30px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    z-index: 999;
    cursor: pointer;
}

.introduce_prev img {
    width: 28px;
    height: 28px;
    margin-left: -10px;
}

.introduce_next img {
    width: 28px;
    height: 28px;
}

.introduce_prev {
    left: 180px;
}

.introduce_next {
    right: 250px;
}

.introduce_left {
    width: 538x;
}

.introduce_left h3 {
    margin: 120px 0 40px;
    font-size: 28px;
    transition: all .3s;
}

.introduce_left ul li {
    width: 538px;
    height: 150px;
    font-size: 14px;
    margin: 24px 0 48px;
}

.introduce_left ul li span {
    /* 空格就是换行 */
    white-space: break-spaces;
    transition: all .3s;
}

.introduce_left ul li a img {
    width: 38px;
    height: 38px;

}

.introduce_left ul li a {
    font-size: 12px;
}

.introduce_right img {
    width: 90%;
    height: 100%;
    transition: all .3s;
}

.introduce_right {
    transform: translate(0, 0);
    width: 40%;
    height: 100%;
    margin-left: 5%;
    margin-bottom: 75px;
    object-fit: cover;
}

.introduce_bottom {
    position: absolute;
    left: 50%;
    bottom: 0;
    margin-left: -150px;
    width: 300px;
    height: 30px;
}

.introduce_bottom ul li {
    float: left;
    display: block;
    width: 6px;
    height: 6px;
    margin-left: 12px;
    margin-top: 5px;
    border-radius: 50%;
    background-color: #000;
    transition: all .3s;
}

/* .introduce_bottom ul li:nth-last-child(2){
    margin: -5;
} */

.introduce_bottom ul .horizontally {
    background-color: transparent;
    margin: -5px 0 0 0;
}

.introduce_bottom ul li:nth-last-child(1) {
    width: 100px;
    margin-left: 80px;
}

.introduce_bottom ul li strong {
    color: #ccc;
    padding: 10px;
}

.introduce_bottom ul li a i {
    font-size: 12px;
}

/* 介绍部分1 .introduce1模块开始 */
.introduce1 {
    position: relative;
    left: 0;
    right: 0;
    /* top: -50px; */
    display: flex;
    height: 120px;
    /* justify-content: center; */
    /* align-items: center; */
    width: 100%;
    margin: 10px auto 100px;
    /* background-color: #cc2532; */
    /* background-image: url(../images/lujingbg.png); */
}

.introduce1_left {
    width: 255px;
    text-align: center;
    height: 110px;
    line-height: 110px;
  
    /* width: 538x; */
    /* height: 900px; */
    /* margin-top: 450px; */
    margin-left: 120px;
    font-size: 36px;
    font-weight: bold;
    color: #fff;
    border: 1px solid #37acf0;
    background-color: #3eaff0;
    border-radius: 18px;
}

/* .introduce1_left span {
    position: relative;
    top: 30px;
} */

.introduce1_right {
    position: relative;
    top: -30px;
    font-size: 20px;
    width: 100%;
    height: 100%;
    height: 0;
    margin-left: 5%;
    margin-right: -10%;
    object-fit: cover;
    text-indent: 2em;
}

.introduce_img {
    /* background-image: url(../images/introduce1_ces.png); */
    /* background-image: url(../upload/inn/首页-研发&创新-插图.png); */
    width: 100%;
    height: 700px;
    overflow: hidden;
}

.class {
    position: relative;
    width: 100%;
    /* height: 90vh; */
    padding-top: 77px;
    padding-bottom: 90px
}

.class .bg {
    position: absolute;
    width: 100%;
    height: 45%;
    left: 0;
    top: 0;
    overflow: hidden;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    background-image: url(../images/beijingtu_product.jpg);
}

/* 分类导航class模块  开始 */
.class {
    position: relative;
    width: 100%;
    padding-top: 77px;
    padding-bottom: 90px;
    height: 60vh;

}

.class .bg {
    position: absolute;
    width: 100%;
    height: 115%;
    left: 0;
    top: 0;
    overflow: hidden;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    background-image: url(../images/beijingtu_product.jpg);
}


.class .product_content {
    max-width: 1716px;
    position: relative;
    margin: 0 auto;
    width: 100%;
    padding: 0 80px;
}

.class .product_content h2 {
    font-size: 48px;
    color: #333;
    text-align: center;
    line-height: 1.478;
}

.class .product_content h2 span {
    display: inline-block;
    border-bottom: 2px solid red;
}

.banner {
    width: 100%;
    height: 350px;
    /* background-color: rgba(35, 67, 92, 0.5); */
    margin: 10px 0 0;
    padding: 17px 0;
    border-radius: 15px;
}

.banner ul {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

/* 
.banner ul li {
    height: 66px;
    border-radius: 15px;
    background-color: rgba(35, 67, 92, 0.2);
    text-align: center;
    transition: all 0.2s;
    font-size: 28px;
    line-height: 66px;
    color: #fff;
    cursor: pointer;
} */

.banner ul li {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    float: left;
    width: 370px;
    height: 150px;
    margin: 5px 5px;
    border-radius: 2px;
    background-color: #ffffff80;
    text-align: center;
    transition: all 0.2s;
    color: #199de7;
    font-size: 28px;
}

.banner ul li a {
    color: #199de7;
    display: block;
    width: 100%;
    height: 100%;
    line-height: 150px;
}


.banner ul li img {
    width: 66px;
    margin-right: 20px;

}

.banner ul .active {
    background-color: rgba(35, 67, 92, 0.2);
}

.banner ul li:hover {
    background-color: rgba(35, 67, 92, 0.2);
    cursor: pointer;
}

/* 分类导航class模块 结束 */

/* 分类导航class_nav模块 开始 */
.class_nav {
    width: 100%;
}

.class_nav .title {
    display: block;
    font-size: 48px;
    color: black;
    margin-bottom: 80px;
    margin-left: calc(50% - 150px)
}

.class_nav .title img {
    width: 48px;
}

.class_nav ul {
    width: calc(100% - 6px);
    margin-left: 3px;
}

.class_nav ul li {
    float: left;
    width: calc(50% - 500px);
    margin: 50px 10px 10px 10px;
}

.class_nav ul li a {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    overflow: hidden;

}

/* 鼠标放置图片变大 */
.class_nav ul li a img {
    width: 100%;
    object-fit: cover;
    transition: all 1s;
}

.class_nav ul li a img:hover {
    transform: scale(1.1);
}

.class_nav ul li a h4,
.class_nav ul li a i,
.class_nav ul li a span {
    display: flex;
    justify-content: center;
    position: absolute;
    left: 50%;
    margin-left: -300px;
    width: 600px;
    color: #fff;
}

/* .class_nav ul li a h4 {
    top: 64%;
    height: 24px;
    line-height: 24px;
    font-weight: 400;
} */

.class_nav ul li a i {
    top: 60%;
    height: 45px;
    font-size: 36px;
    line-height: 45px;
}

.class_nav ul li a span {
    display: flex;
    align-items: center;
    top: 78%;
    height: 16px;
    line-height: 16px;
    font-size: 12px;
}

.class_nav ul li a span img {
    width: 38px;
    height: 38px;
}

/* 分类导航class_nav模块 结束 */
/* 介绍 introduce部分 结束 */

/* 公司信息  information模块 开始 */
.information {
    /* background-color: #f1f1f1; */
    /* display: flex; */
    /* justify-content: center; */
    text-align: center;
}

.information .information_left {
    /* margin-left: 100px; */
    width: 100%;
    overflow: hidden;
}

.information .information_left .img1 {
    width: 100%;
    /* height: 400px; */
    /* height: 650px; */
    object-fit: cover;
    transition: all 1s;
}

.information .information_right .img2 {
    /* height: 400px; */
    width: 77%;
    margin-top: 50px;
}

.information .information_right {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    /* justify-content: center; */
    align-items: center;
    width: 50%;
}

.information .information_right h3 {
    font-size: 36px;
    font-weight: normal;
    margin-bottom: 100px;
}

.information .information_right p {
    width: 650px;
    text-indent: 2em;
    font-size: 20px;
    /* margin: 10px 0; */
    margin-top: 50px;
    line-height: 40px;
}

.information .information_right a {
    font-size: 14px;
}

.information .information_right a img {
    width: 36px;
    height: 36px;
}

/* 公司信息  information模块 结束 */
/* 新公司介绍部分 inf_botton 开始 */
.information h2{
    margin: 30px auto;
     font-size: 48px;
    color: #333;
    text-align: center;
    line-height: 1.478;
}
.information h2 span {
    display: inline-block;
    border-bottom: 2px solid red;
}
.inf_botton{
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-around;
    /* margin-top: 20px; */
    margin: 40px 20px 0 20px;
}
.inf_botton .botton1{
    display: flex;
    flex-direction: column;
    width: 25%;
    /* background-color: #199de7; */
}
.inf_botton .botton1 .botton1_img1{
    margin: 0 auto;
    width: 120px;
    height: 120px;
    border: 2px solid #0868a0;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background-color: #0868a0;
}
.inf_botton .botton1 .botton1_img1 img{
    width: 80px;
    margin: 15px    auto;
    
}
.inf_botton .botton1 .botton1_title{
    font-size: 28px;
    margin: 20px auto;
}
.inf_botton .botton1 i {
    width: 60%;
    color: #575353;
    margin: 0 auto;
    font-size: 18px;
}
/* 新公司介绍部分 inf_botton 结束 */

/* 合作伙伴pns_bg模块 开始 */
.pns{
    margin-top: 60px;
}
.pns h2{
 margin: 30px auto;
     font-size: 48px;
    color: #333;
    text-align: center;
    line-height: 1.478;
}

.pns_bg {
    position: relative;
    width: 90%;
    height: 610px;
    overflow: hidden;
    margin: 0 auto;
}

.pns_bg img {
    display: block;
    margin: 0 auto;
    width: 45%;
    /* margin-top: -350px; */
}


.pns1 {
    display: flex;

    margin: 50px 30px;
}
.pns_logo {
    width: 20%;
        height: 145px;
}
.pns1 .pns_logo img{
    width: 45%;
    transition: all .3s;
}
.pns1 .pns_logo img:hover{
    width: 47%;
}
/* 合作伙伴pns_bg模块 结束 */
/* 标题 title模块 开始 */
.title {
    position: relative;
    max-width: 1920px;
    width: 100%;
    margin: 0 auto;
    padding: 90px 80px 0 80px;
}



.pns h2 span {
    display: inline-block;
    border-bottom: 2px solid red;
}

/* 标题 title模块 结束 */