/* 自适应 */
@media screen and (max-width: 960px) {
  /* header */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body {
    max-width: 1920px;
    margin: 0 auto;
  }
  /* 头部 */
  header {
    max-width: 1920px;
    position: fixed;
    top: 0;
    z-index: 99;
    opacity: 0.8;
    width: 100%;
  }
  header #header-wrapper {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background-color: black;
    height: 100px;
    /* logo */
    /* 头部 - 中间导航*/
    /* 头部 - 右侧*/
    /* 手机端-搜索icon */
  }
  header #header-wrapper .icon-caidan {
    display: block !important;
    font-size: 2rem;
    cursor: pointer;
  }
  header #header-wrapper .logo {
    /* border: 1px solid red; */
    width: 60%;
    text-align: center;
  }
  header #header-wrapper .logo img {
    width: 80%;
  }
  header #header-wrapper .icon-sousuo {
    font-size: 2rem;
    cursor: pointer;
  }
  header #header-wrapper nav {
    /* border: 1px solid red; */
    position: absolute;
    right: 100%;
    z-index: 100;
    height: auto;
  }
  header #header-wrapper nav ul {
    /* border: 1px solid red; */
    list-style: none;
    line-height: 95px;
    position: relative;
    max-height: 95px;
    min-width: 597px;
    overflow: hidden;
  }
  header #header-wrapper nav ul li {
    /* border: 1px solid red; */
    display: inline-block;
    margin-left: 20px;
    margin-right: 20px;
  }
  header #header-wrapper nav ul li a {
    /* border: 1px solid yellow; */
    text-decoration: none;
    color: white;
    /* font-size: 1vw; */
    font-size: 1rem;
  }
  header #header-wrapper nav ul li:hover a {
    border-bottom: 3px solid #0095DC;
    padding-bottom: 20px;
  }
  header #header-wrapper .header-right {
    display: none;
    /* 搜索框 */
    /* 电话号码 */
  }
  header #header-wrapper .header-right .header-search {
    border-radius: 25px;
    background-color: #46485a;
    height: 35px;
    width: 50%;
  }
  header #header-wrapper .header-right .header-search input {
    background-color: transparent;
    border: 0;
    color: white;
    outline: none;
    height: 40px;
    padding: 10px;
    width: 80%;
  }
  header #header-wrapper .header-right .phoneNumber {
    display: none;
  }
  header #header-wrapper .small-search {
    display: block;
  }
  /* 手机端菜单 */
  #phone-menu {
    display: none;
    /* display: block; */
    position: fixed;
    top: 0;
    left: 0;
    width: 70%;
    height: 100%;
    z-index: 200;
  }
  #phone-menu ul {
    list-style-type: none;
    width: 100%;
    height: 100%;
    float: left;
    background-color: #323C3C;
  }
  #phone-menu ul li {
    /* border: 1px solid red; */
    width: 100%;
    height: 80px;
    text-align: center;
  }
  #phone-menu ul li a {
    /* border: 1px solid red; */
    display: block;
    opacity: 0;
    color: white;
    font-weight: bolder;
    text-decoration: none;
    width: 100%;
    height: 100%;
    line-height: 80px;
    transform: translateX(-50px);
    transition: all 1s;
  }
  /* 遮罩层 */
  #phone-menu-mask {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: black;
    opacity: 0;
    z-index: 199;
  }
  /* banner */
  #banner {
    margin: 0 auto;
    position: relative;
    width: 100%;
    height: 580px;
  }
  #banner #banner-content {
    width: 100%;
    height: 580px;
    position: relative;
    /* banner 2 */
    /* banner 3 */
    /* banner 4 */
    /* banner 5 */
    /* banner 6 */
    /* banner 7 */
  }
  #banner #banner-content .banner-content-wrapper {
    width: 100%;
    height: 580px;
    display: none;
    position: absolute;
    margin-left: 0;
  }
  #banner #banner-content .banner-content-wrapper .box {
    position: absolute;
    width: 100%;
    height: 580px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  }
  #banner #banner-content .banner-content-wrapper .box .banner-txt {
    color: white;
    text-align: center;
  }
  #banner #banner-content .banner-content-wrapper .box .banner-txt h1 {
    display: inline-block;
  }
  #banner #banner-content .banner-content-wrapper .box .banner-txt p {
    color: white;
  }
  #banner #banner-content .banner-content-wrapper .box .banner-imgs {
    position: relative;
  }
  #banner #banner-content .banner-content-wrapper .box .banner-imgs img {
    position: absolute;
  }
  #banner #banner-content .banner-content-wrapper .box .yuansu {
    position: absolute;
    display: none;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(1) {
    display: block;
    /* banner 1 */
  }
  #banner #banner-content .banner-content-wrapper:nth-child(1) .box {
    background-image: url('../img/banner/bg1.png');
  }
  #banner #banner-content .banner-content-wrapper:nth-child(1) .box .banner-txt {
    margin-top: 140px;
    left: 0;
    width: 100%;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(1) .box .banner-txt h1 {
    font-size: 58px;
    margin: 48px 0;
    left: -20px;
    font-size: calc(7vw);
  }
  #banner #banner-content .banner-content-wrapper:nth-child(1) .box .banner-txt p:nth-child(2) {
    font-size: calc(6vw);
    margin: 29px 0;
    margin-top: calc(3vw);
    text-align: center;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(1) .box .banner-txt p:nth-child(3) {
    font-size: 20px;
    margin: 20px 0;
    display: none;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(1) .box .banner-imgs {
    display: none;
    width: 100%;
    height: 90%;
    right: 0;
    bottom: 0;
    opacity: 0;
    animation: fadeIn 0.5s forwards;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(1) .box .banner-imgs img {
    height: 70%;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(2) .box {
    background-color: #0F2038;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(2) .box .banner-txt h1 {
    font-size: calc(7vw);
    border-bottom: 1px solid white;
    padding-bottom: 8px;
    margin-bottom: 0;
    margin-top: 160px;
    border: 0;
    left: -20px;
    width: 100%;
    text-align: center;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(2) .box .banner-txt p {
    font-size: 20px;
    margin: 20px 0;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(2) .box .banner-imgs {
    display: none;
    width: 100%;
    height: 60%;
    top: calc(34vw);
    bottom: 80px;
    min-width: 919px;
    min-height: 424px;
    transform: translateX(-60px);
  }
  #banner #banner-content .banner-content-wrapper:nth-child(2) .box .banner-imgs img:nth-child(1) {
    /* border: 1px solid yellow; */
    height: calc(52vw);
    width: 90%;
    left: 50%;
    bottom: calc(9vw);
  }
  #banner #banner-content .banner-content-wrapper:nth-child(2) .box .banner-imgs img:nth-child(2) {
    left: 45%;
    top: 45%;
    height: calc(23vw);
    transform: translate(380px, 180px);
    animation: banner2_people 1s ease-out;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(2) .box .banner-imgs img:nth-child(3) {
    left: 50%;
    top: 49%;
    height: calc(21vw);
    transform: translate(450px, 170px);
    animation: fadeIn 1s ease-out;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(2) .box .banner-imgs img:nth-child(4) {
    display: none;
    left: 55%;
    top: 56%;
    height: calc(18vw);
    transform: translate(515px, 225px);
    animation: fadeIn 1s ease-out;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box {
    background-image: url('../img/banner/bg3.png');
  }
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box .banner-txt {
    padding: 0 24px;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box .banner-txt h1 {
    width: 100%;
    left: -20px;
    margin-top: 130px;
    padding-bottom: 8px;
    font-size: calc(7vw);
    text-align: center;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box .banner-txt p {
    font-size: 20px;
    margin: 20px 0;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box .banner-imgs {
    display: none;
    width: 100%;
    height: 60%;
    top: calc(27vw);
    right: 35px;
    min-width: 626px;
    min-height: 397px;
    margin-bottom: 30px;
    transform: translateX(-70px);
  }
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box .banner-imgs img:nth-child(1) {
    width: 100%;
    height: 30%;
    left: 18%;
    top: 57%;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box .banner-imgs img:nth-child(2) {
    transform: translate(133px, 174px);
    animation: banner3_people 1s ease-in-out;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box .yuansu1,
  #banner #banner-content .banner-content-wrapper:nth-child(3) .box .yuansu2 {
    display: none;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(4) .box {
    background-image: url('../img/banner/bg2.png');
  }
  #banner #banner-content .banner-content-wrapper:nth-child(4) .box .banner-txt {
    z-index: 10;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(4) .box .banner-txt h1 {
    border: 0;
    left: -20px;
    margin-top: 140px;
    width: 100%;
    text-align: center;
    font-size: calc(7vw);
    padding-bottom: 8px;
    margin-bottom: 0;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(4) .box .banner-txt p {
    font-size: 20px;
    margin: 20px 0;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(4) .box .banner-imgs {
    display: none;
    top: calc(33vw);
    width: 100%;
    height: 50%;
    min-width: 0;
    min-height: 404px;
    transform: translateX(-15px);
  }
  #banner #banner-content .banner-content-wrapper:nth-child(4) .box .banner-imgs img:nth-child(1) {
    min-width: 0;
    min-height: 0;
    width: 55%;
    transform: translate(10px, 10px);
    animation: banner4_sphere 1s ease-in-out;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(4) .box .banner-imgs img:nth-child(2) {
    min-width: 0;
    min-height: 0;
    width: 45%;
    top: 40%;
    transform: translate(470px, 10px);
    animation: banner4_logo 1s ease-in-out;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box {
    background-image: url('../img/banner/bg3.png');
  }
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box .banner-txt {
    margin-bottom: 140px;
    padding: 0 24px;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box .banner-txt h1 {
    font-size: calc(7vw);
    border-bottom: 1px solid white;
    padding-bottom: 8px;
    margin-top: 140px;
    margin-bottom: 0;
    border: 0;
    left: -20px;
    width: 100%;
    text-align: center;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box .banner-txt p {
    font-size: 20px;
    margin: 20px 0;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box .banner-imgs {
    display: none;
    min-width: 737px;
    min-height: 385px;
    width: 100%;
    height: 80%;
    top: 20%;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box .banner-imgs img:nth-child(1) {
    /* border: 1px solid red; */
    width: 80%;
    height: calc(50vw);
    top: 23%;
    left: 52%;
    transform: translateX(-50%);
  }
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box .banner-imgs img:nth-child(2) {
    left: 41%;
    top: 45%;
    height: calc(24vw);
    transform: translate(320px, 180px);
    animation: banner5_people 1s ease-in-out;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box .yuansu1,
  #banner #banner-content .banner-content-wrapper:nth-child(5) .box .yuansu2 {
    display: none;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box {
    background-image: url('../img/banner/bg3.png');
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .banner-txt {
    margin-bottom: 110px;
    padding: 0 24px;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .banner-txt h1 {
    font-size: calc(7vw);
    border-bottom: 1px solid white;
    padding-bottom: 8px;
    margin-bottom: 0;
    border: 0;
    left: -20px;
    margin-top: 140px;
    width: 100%;
    text-align: center;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .banner-txt p {
    font-size: 20px;
    margin: 20px 0;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .banner-imgs {
    display: none;
    min-width: 714px;
    min-height: 493px;
    top: 30%;
    left: 0;
    width: 100%;
    height: 60%;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .banner-imgs img:nth-child(1) {
    /* border: 1px solid blue; */
    width: 90%;
    height: calc(69vw);
    left: 50%;
    transform: translateX(-50%);
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .banner-imgs img:nth-child(2) {
    transform: translate(140px, 160px);
    animation: banner6_people_man 1s ease-in-out;
    transition-delay: 2s;
    height: calc(27vw);
    left: 18%;
    top: 36%;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .banner-imgs img:nth-child(3) {
    height: calc(14vw);
    top: 45%;
    left: 86%;
    transform: translate(645px, 215px);
    animation: banner6_people_women 1s ease-in-out;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .yuansu1,
  #banner #banner-content .banner-content-wrapper:nth-child(6) .box .yuansu2 {
    display: none;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box {
    background-image: url('../img/banner/bg3.png');
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .banner-txt {
    margin-bottom: 105px;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .banner-txt h1 {
    font-size: calc(7vw);
    border-bottom: 1px solid white;
    padding-bottom: 8px;
    margin-bottom: 40px;
    border: 0;
    left: -20px;
    margin-top: 140px;
    width: 100%;
    text-align: center;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .banner-txt p {
    font-size: 20px;
    margin: 20px 0;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .banner-imgs {
    display: none;
    min-width: 480px;
    min-height: 418px;
    width: 100%;
    height: 100%;
    margin-top: 15%;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .banner-imgs img:nth-child(1) {
    /* border: 1px solid red; */
    width: 80%;
    height: calc(70vw);
    left: 50%;
    transform: translateX(-50%);
    top: 22%;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .banner-imgs img:nth-child(2) {
    width: 60%;
    margin-left: 3.5%;
    top: 42%;
    height: calc(44vw);
    opacity: 0;
    transform: translate(63px, 30px);
    animation: banner7_yellow 1s ease-in-out 0.2s forwards;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .banner-imgs img:nth-child(3) {
    width: 86%;
    top: 49%;
    left: 6%;
    height: calc(55vw);
    opacity: 0;
    transform: translate(-25px, 20px);
    animation: banner7_blue 1s ease-in-out forwards;
  }
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .yuansu1,
  #banner #banner-content .banner-content-wrapper:nth-child(7) .box .yuansu2 {
    display: none;
  }
  #banner #banner-dots {
    position: absolute;
    /* border: 1px solid red; */
    width: 100%;
    height: 20px;
    bottom: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 98;
  }
  #banner #banner-dots span {
    display: inline-block;
    background-color: #596B99;
    width: 6%;
    height: 3px;
    margin-left: 8px;
    margin-right: 8px;
    cursor: pointer;
  }
  #banner #banner-dots .dot-active {
    background-color: #FFFFFF;
  }
  /* 产品 */
  #product {
    /* border: 1px solid red; */
    height: 100%;
    min-height: 0;
    width: 100%;
    /* overflow: hidden; */
    padding-top: 30px;
    padding-bottom: 50px;
    font-family: 'SimHei';
    /* 标题 */
    /* 列表 */
  }
  #product h1 {
    width: 150px;
    border-bottom: 1px solid #55C9FF;
    text-align: center;
    padding-bottom: 20px;
    margin: 0 auto;
    font-weight: normal;
  }
  #product ul {
    /* border: 1px solid red; */
    width: 90%;
    max-width: 1213px;
    margin: 0 auto;
    font-size: 0;
    /*消除块之间的空格*/
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
  }
  #product ul li {
    /* border: 1px solid blue; */
    margin: 0 auto;
    margin-top: 46px;
    width: 370px;
    height: 200px;
    border: 0;
    border-top: 6px solid #FFA93A;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style-type: none;
    transition: 0.5s all ease;
    padding-left: 15px;
    padding-right: 15px;
    /* 图片 */
    /* 文字 */
    /* 按钮 */
  }
  #product ul li .product-img {
    /* border: 1px solid yellow; */
    width: auto;
    height: 192px;
    text-align: left;
    padding-top: 65px;
  }
  #product ul li .product-img :nth-child(2) {
    display: none;
  }
  #product ul li .product-txt {
    height: 0;
    width: 60%;
    text-align: center;
    font-family: SimHei;
  }
  #product ul li .product-txt h2 {
    font-size: 16px;
    padding-bottom: 27px;
    font-weight: normal;
    color: #333333;
  }
  #product ul li .product-txt p {
    display: none;
    font-size: 14px;
    color: #999999;
    padding-bottom: 10px;
  }
  #product ul li button {
    display: none;
  }
  #product ul li:hover {
    cursor: pointer;
    background-color: #5DCDFF;
    border-top: 5px solid transparent;
    /* border-top: 0; */
  }
  #product ul li:hover .product-txt {
    /* border: 1px solid red; */
    height: 180px;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
  }
  #product ul li:hover .product-txt > h2 {
    display: none;
    color: #fff;
  }
  #product ul li:hover .product-txt > p {
    display: block;
    color: #fff;
  }
  #product ul li:hover .product-img {
    display: none;
  }
  /* 优势 */
  #vantage {
    background-color: #070C41;
    height: 1150px;
    min-height: 796px;
    width: 100%;
    padding-top: 50px;
    font-family: 'SimHei';
    background-image: none;
    background-position: bottom;
    background-repeat: no-repeat;
    /* 标题 */
    /* 列表 */
  }
  #vantage h1 {
    width: 150px;
    border-bottom: 1px solid #55C9FF;
    text-align: center;
    padding-bottom: 20px;
    margin: 0 auto;
    font-weight: normal;
    color: #C9CAD5;
    margin-bottom: 20px;
  }
  #vantage ul {
    /* border: 1px solid red; */
    width: 90%;
    max-width: 1081px;
    margin: 0 auto;
    font-size: 0;
    /*消除块之间的空格*/
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    /* 项 */
  }
  #vantage ul li {
    /* border: 1px solid blue; */
    margin: 0 auto;
    margin-top: 10px;
    width: 400px;
    height: 180px;
    display: flex;
    justify-content: space-around;
    list-style-type: none;
    transition: 0.5s all ease;
    /* 图 */
    /* 文字 */
  }
  #vantage ul li .vantage-img {
    position: relative;
    /* border: 1px solid yellow; */
    width: 25%;
    height: 180px;
    text-align: center;
  }
  #vantage ul li .vantage-img img {
    /* border: 1px solid blue; */
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto;
    /* top: 50%; */
    /* left: 50%; */
    /* transform: translate(-50%, -50%); */
  }
  #vantage ul li .vantage-img img:nth-child(3) {
    display: none;
  }
  #vantage ul li .vantage-txt {
    text-align: center;
    font-family: SimHei;
    width: 70%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
  }
  #vantage ul li .vantage-txt h2 {
    font-size: 19px;
    padding-bottom: 10px;
    font-weight: normal;
    color: #fff;
    opacity: 0.8;
  }
  #vantage ul li .vantage-txt p {
    /* border: 1px solid red; */
    font-size: 14px;
    color: #fff;
    padding-bottom: 10px;
    line-height: 25px;
    padding-left: 34px;
    padding-right: 34px;
    opacity: 0.5;
    text-align: left;
  }
  #vantage ul li:nth-last-child(1) {
    height: 210px !important;
    transform: translateY(0px);
  }
  #vantage ul li:nth-last-child(1) .vantage-img {
    height: 210px !important;
  }
  #vantage ul li:hover {
    background-color: #0C135B;
    cursor: pointer;
  }
  #vantage ul li:hover .vantage-txt h2 {
    opacity: 1;
  }
  #vantage ul li:hover .vantage-txt p {
    opacity: 1;
  }
  /* 应用案例 */
  #case {
    /* border: 1px solid red; */
    margin-top: calc(5vw);
    height: calc(70vw);
    /* height: calc(40vh); */
    width: 100%;
    background-image: url(../img/case-bg.png);
    background-size: cover;
    background-repeat: no-repeat;
    padding-top: calc(8vw);
    font-family: 'SimHei';
  }
  #case #case-box {
    /* border: 1px solid blue; */
    position: relative;
    background-color: white;
    width: 82%;
    height: calc(55vw);
    margin: 0 auto;
    padding-top: calc(3vw);
    /* 列表（图片） */
    /* 箭头 */
  }
  #case #case-box h1 {
    width: 100px;
    font-size: calc(1.3vw);
    font-weight: 300;
    border-bottom: 1px solid #55C9FF;
    text-align: center;
    padding-top: calc(0.6vw);
    padding-bottom: calc(0.6vw);
    margin: 0 auto;
    margin-bottom: 20px;
    color: #000;
  }
  #case #case-box p {
    font-size: calc(2vw);
    line-height: calc(5vw);
    color: #858585;
    padding-left: calc(7vw);
  }
  #case #case-box p:nth-child(6) {
    margin-top: calc(1.7vw);
    margin-bottom: 10px;
  }
  #case #case-box ul {
    /* border: 1px solid red; */
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    padding-left: calc(7vw);
    padding-right: calc(7vw);
  }
  #case #case-box ul li {
    /* border: 1px solid blue; */
    list-style-type: none;
    /* min-height: 154px; */
    margin: 0 auto;
    margin-bottom: 10px;
    text-align: center;
    width: 25%;
    height: 25%;
  }
  #case #case-box ul li img {
    /* 176 117 */
    width: 100%;
    height: 100%;
  }
  #case #case-box #case-arrow-left {
    position: absolute;
    width: calc(1.7vw);
    height: calc(3vw);
    background-color: #E6F2FE;
    left: 35px;
    top: 50%;
    transform: translateY(-50%);
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    display: none;
  }
  #case #case-box #case-arrow-left span {
    width: calc(0.7vw);
    height: calc(0.7vw);
    border-top: 1px solid white;
    border-left: 1px solid white;
    transform: rotate(-45deg);
    margin-left: 10px;
  }
  #case #case-box #case-arrow-right {
    position: absolute;
    width: calc(1.7vw);
    height: calc(3vw);
    background-color: #E6F2FE;
    right: 35px;
    top: 50%;
    transform: translateY(-50%);
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    display: none;
  }
  #case #case-box #case-arrow-right span {
    width: calc(0.7vw);
    height: calc(0.7vw);
    border-top: 1px solid white;
    border-right: 1px solid white;
    transform: rotate(45deg);
    margin-right: 10px;
  }
  #case #case-box:hover #case-arrow-right {
    background-color: #A7E2FD;
    cursor: pointer;
  }
  #case #case-box:hover #case-arrow-left {
    background-color: #A7E2FD;
    cursor: pointer;
  }
  /* 合作伙伴 */
  #friends {
    /* border: 1px solid red; */
    min-height: 0;
    height: 100%;
    width: 100%;
    padding-top: 20px;
    /* overflow: hidden; */
    font-family: 'SimHei';
  }
  #friends h1 {
    width: 150px;
    border-bottom: 1px solid #55C9FF;
    text-align: center;
    padding-bottom: 20px;
    margin: 0 auto;
    margin-bottom: 20px;
    font-weight: normal;
    color: #000;
  }
  #friends p {
    text-align: center;
    color: #7F8294;
  }
  #friends ul {
    /* border: 1px solid red; */
    width: 82%;
    max-width: 1200px;
    list-style-type: none;
    margin: 0 auto;
    padding-top: 10px;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
  }
  #friends ul li {
    /* border: 1px solid blue; */
    width: 95px;
    height: 35px;
    margin-top: 40px;
    margin-bottom: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  #friends ul li img {
    width: 100%;
    height: 100%;
  }
  /* 项目合作流程 */
  #cooperation {
    max-height: 635px;
    width: 100%;
    background-color: #EFF7FE;
    margin-top: 0px;
    padding-top: 40px;
    padding-bottom: 40px;
    font-family: 'SimHei';
    overflow: hidden;
  }
  #cooperation h1 {
    width: 150px;
    border-bottom: 1px solid #DBDFFE;
    text-align: center;
    padding-bottom: 20px;
    margin: 0 auto;
    margin-bottom: 18px;
    font-weight: normal;
    color: #000;
  }
  #cooperation p {
    margin-bottom: 73px;
    text-align: center;
    color: #7D8194;
  }
  #cooperation #cooperation-imgs {
    /* border: 1px solid red; */
    width: 90%;
    max-width: 1182px;
    margin: 0 auto;
  }
  #cooperation #cooperation-imgs img {
    display: block;
    margin: 0 auto;
    width: 100%;
    height: auto;
  }
  /* 关于我们 */
  #about {
    min-height: 635px;
    width: 100%;
    background-image: linear-gradient(#143360, #0f1f3b);
    overflow: hidden;
    padding-top: 64px;
    padding-bottom: 64px;
    padding-left: 48px;
    padding-right: 48px;
    font-family: 'SimHei';
  }
  #about h1 {
    width: 150px;
    border-bottom: 1px solid #fff;
    text-align: center;
    padding-bottom: 20px;
    margin: 0 auto;
    margin-bottom: 50px;
    font-weight: normal;
    color: #fff;
  }
  #about > p {
    color: #fff;
    max-width: 480px;
    margin: 0 auto;
    margin-bottom: 24px;
  }
  #about ul {
    list-style-type: none;
    display: flex;
    flex-wrap: wrap;
  }
  #about ul li {
    width: 100%;
    min-height: 100px;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 12px 0;
  }
  #about ul li .title {
    margin-right: 48px;
    text-align: center;
    width: 70px;
  }
  #about ul li .title img {
    margin-bottom: 8px;
  }
  #about ul li .content {
    width: 370px;
  }
  /* footer */
  footer {
    width: 100%;
    min-height: 506px;
    /* min-height: 505px; */
    background-color: #000;
    padding-top: 30px;
    font-family: 'SimHei';
    overflow: hidden;
  }
  footer #footer-top {
    /* border: 1px solid red; */
    width: 100%;
    min-height: 390px;
    margin: 0 auto;
    border: 0;
    padding-bottom: 15px;
    border-bottom: 1px solid #191919;
  }
  footer #footer-top ul {
    /* border: 1px solid blue; */
    width: 100%;
    min-width: 0px;
    display: flex;
    justify-content: flex-start;
    flex-wrap: wrap;
    padding-bottom: 15px;
    align-items: center;
  }
  footer #footer-top ul li {
    /* border: 1px solid yellow; */
    list-style-type: none;
    width: 165px;
    height: 100px;
    padding-left: 10px;
    margin-left: 15px;
    margin-top: 5px;
    flex: 0 0 auto;
  }
  footer #footer-top ul li h3 {
    float: left;
    width: 20px;
    height: 100%;
    color: #fff;
    font-size: 14px;
    border: 0;
    border-right: 1px solid #191919;
    border-bottom: 1px solid #191919;
    font-weight: normal;
    padding-top: 10px;
    padding-right: 15px;
    padding-bottom: 0px;
  }
  footer #footer-top ul li p {
    color: #666666;
    font-size: 12px;
    line-height: 22px;
    padding-left: 30px;
  }
  footer #footer-top > p {
    color: #666666;
    line-height: 22px;
    font-size: 12px;
    float: left;
    width: 100%;
    text-align: center;
  }
  footer #footer-top > p:nth-child(5) {
    /* border: 1px solid green; */
    margin-top: 15px;
  }
  footer #footer-top > p:nth-child(5) > span {
    color: #003351;
  }
  footer #footer-bottom {
    /* border: 1px solid blue; */
    width: 100%;
    height: 139px;
    margin: 0 auto;
    padding-top: 0px;
  }
  footer #footer-bottom ul {
    padding-left: 10px;
    text-align: center;
    list-style-type: none;
  }
  footer #footer-bottom ul li {
    display: inline-block;
    color: #666666;
    font-size: 12px;
  }
  footer #footer-bottom ul li a {
    text-decoration: none;
    color: #666666;
  }
  footer #footer-bottom > p {
    padding-top: 30px;
    color: #003351;
    font-size: 12px;
    text-indent: 1em;
    text-align: center;
  }
  /* 回滚按钮 */
  #gotoTopBtn {
    opacity: 0;
    border-radius: 50%;
    position: fixed;
    right: calc(1vw);
    bottom: calc(1vw);
    width: 50px;
    height: 50px;
    cursor: pointer;
  }
  /* 用户留言 */
  .float-tool {
    display: none;
  }
  .float-tool-modal {
    display: none;
  }
  /* 统一的渐入 */
  @keyframes fadeIn {
    0% {
      opacity: 0;
    }
    100% {
      opacity: 1;
    }
  }
  /* banner2动画 */
  @keyframes banner2_people {
    0% {
      opacity: 0;
      transform: translate(420px, 180px);
    }
    100% {
      opacity: 1;
      transform: translate(380px, 180px);
    }
  }
  /* banner3动画 */
  @keyframes banner3_people {
    0% {
      opacity: 0;
      transform: translate(60px, 180px);
    }
    100% {
      opacity: 1;
      transform: translate(133px, 174px);
    }
  }
  /* banner4动画 */
  @keyframes banner4_sphere {
    0% {
      opacity: 0;
      transform: translate(-40px, 10px);
    }
    100% {
      opacity: 1;
      transform: translate(10px, 10px);
    }
  }
  @keyframes banner4_logo {
    0% {
      opacity: 0;
      transform: translate(520px, 10px);
    }
    100% {
      opacity: 1;
      transform: translate(470px, 10px);
    }
  }
  /* banner5动画 */
  @keyframes banner5_people {
    0% {
      opacity: 0;
      transform: translate(280px, 180px);
    }
    100% {
      opacity: 1;
      transform: translate(320px, 180px);
    }
  }
  /* banner6动画 */
  @keyframes banner6_people_man {
    0% {
      opacity: 0;
      transform: translate(90px, 160px);
    }
    100% {
      opacity: 1;
      transform: translate(140px, 160px);
    }
  }
  @keyframes banner6_people_women {
    0% {
      opacity: 0;
      transform: translate(645px, 170px);
    }
    100% {
      opacity: 1;
      transform: translate(645px, 215px);
    }
  }
  /* banner7动画 */
  @keyframes banner7_yellow {
    0% {
      opacity: 0;
      transform: translate(63px, 0);
    }
    100% {
      opacity: 1;
      transform: translate(63px, 30px);
    }
  }
  @keyframes banner7_blue {
    0% {
      opacity: 0;
      transform: translate(-25px, 60px);
    }
    100% {
      opacity: 1;
      transform: translate(-25px, 20px);
    }
  }
}