@media screen and (min-width: 786px) {
  .banner {
    width: 100%;
    height: 650px;
    margin-top: 50px;
    background: url(../img/banner.jpg) no-repeat center
      center;
    background-size: 100% 100%;
    position: relative;
    opacity: 1;
  }

  .banner .apply_btn {
    position: absolute;
    z-index: 2;
    display: block;
    bottom: 23%;
    margin: 0 auto;
    width: 280px;
    height: 60px;
    line-height: 60px;
    border-radius: 10px;
    font-weight: 700;
    margin-left: -140px;
    left: 50%;
    color: #fff;
    background: #ee5030;
    font-size: 26px;
    text-align: center;
    z-index: 9;
  }

  .info {
    width: 1140px;
    margin: 140px auto 50px;
    display: flex;

  }

  .about-content {
    width: 58.33333333%;
    padding-right: 50px;
  }

  .about-content h2 {
    font-weight: bold;
    font-size: 32px;
    letter-spacing: 0.03em;
    margin: 0;
  }

  .about-content p.highlight {
    font-size: 20px;
    font-style: italic;
    color: #ff6725;
    font-weight: 600;
    margin-top: 20px;
    margin-bottom: 20px;
  }

  .about-content p {
    font-size: 16px;
    line-height: 27px;
	text-align: justify;
  }

  .video {
    width: 41.66666667%;
  }

  video {
    width: 100%;
  }

  .index-title {
    text-align: center;
    padding: 43px 0 57px 0;
  }

  .index-title h2::after {
    border-bottom: 3px solid #1a1a1a;
    bottom: 0;
    content: "";
    height: 3px;
    left: 0;
    margin: 0 auto;
    position: absolute;
    right: 0;
    width: 30px;
  }

  .index-title h2 {
    font-size: 35px;
    line-height: 35px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 20px;
    color: #1a1a1a;
    position: relative;
  }

  .index-title .english-title {
    font-size: 14px;
    line-height: 24px;
    font-weight: 400;
    color: #666666;
    max-width: 640px;
    margin: 0 auto;
  }

  .index-part1 {
    position: relative;
    width: 1200px;
    margin: 0 auto 80px;
  }

  .index-part1 .send-word {
    position: relative;
    width: 1000px;
    margin: 0 auto;
    padding: 0 100px 51px 100px;
  }

  .index-part1 .send-word .title {
    font-size: 28px;
    color: #1a1a1a;
    text-align: center;
    line-height: 67px;
    padding-bottom: 20px;
  }

  .index-part1 .send-word .content {
    font-size: 16px;
    color: #000;
    text-align: center;
  }

  .icon-list {
    text-align: center;
    padding: 0px 0 80px 0;
  }

  .icon-list .item.icon1 {
    background: url(https://yes-go-1252041857.cos.ap-guangzhou.myqcloud.com/%E5%AE%98%E7%BD%91/img/index/icon1.png)
      no-repeat 10px 15px;
    background-size: 50px;
  }

  .icon-list .item.icon2 {
    background: url(https://yes-go-1252041857.cos.ap-guangzhou.myqcloud.com/%E5%AE%98%E7%BD%91/img/index/icon4.png)
      no-repeat 20px 15px;
    background-size: 50px;
  }

  .icon-list .item.icon4 {
    background: url(https://yes-go-1252041857.cos.ap-guangzhou.myqcloud.com/%E5%AE%98%E7%BD%91/img/index/icon2.png)
      no-repeat 20px 15px;
    background-size: 40px;
  }

  .icon-list .item.icon3 {
    background: url(https://yes-go-1252041857.cos.ap-guangzhou.myqcloud.com/%E5%AE%98%E7%BD%91/img/index/icon3.png)
      no-repeat 20px 15px;
    background-size: 40px;
  }

  /* .icon-list .item {
    display: inline-block;
    width: 160px;
    height: 100px;
    line-height: 100px;
    font-size: 24px;
    color: #1a1a1a;
    font-weight: 700;
  } */

  .icon-list .item {
    display: inline-block;
    width: 80px;
    height: 70px;
    margin: 0 10px;
    line-height: 100px;
    font-size: 18px;
    color: #1a1a1a;
    font-weight: 700;
    text-align: right;
  }

  .index-part1 .about-list {
    display: flex;
  }

  .index-part1 .about-list .item {
    float: left;
    position: relative;
    margin-right: 40px;
    width: 270px;
    height: 400px;
    background: #000;
    color: #fff;
  }

  .index-part1 .about-list .item .title {
    text-align: center;
    height: 101px;
    line-height: 101px;
    font-size: 30px;
    color: #d9d8d8;
  }

  .index-part1 .about-list .item .content {
    font-size: 22px;
    color: #b5b5b5;
    line-height: 25px;
    width: 230px;
    margin: 0 auto;
	text-align: justify;
  }

  .index-part1 .about-list .item img {
    position: absolute;
    bottom: 0;
    width: 100%;
  }

  .index-part2 {
    width: 100%;
    margin-top: 10px;
    overflow: hidden;
  }

  .index-part2 .item {
    width: 1200px;
    /*height: 300px;*/
    margin: 0 auto 50px;
    overflow: hidden;
  }

  .index-part2 .item .item-intro {
    float: left;
    width: 50%;
  }

  .index-part2 .item .item-cover {
    float: left;
    width: 50%;
  }

  .index-part2 .item .intro-box {
    width: 80%;
    margin: 0px auto;
    color: #1a1a1a;
  }

  .index-part2 .item .intro-box .title-english {
    font-family: Futura-Medium;
    font-size: 18px;
  }

  .index-part2 .item .intro-box .title {
    font-size: 24px;
    color: #1a1a1a;
    font-weight: 700;
  }

  .index-part2 .item .intro-box .content {
    font-size: 18px;
	text-align: justify;
	line-height: 30px;
  }

  .more {
    display: block;
    width: 130px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    color: #fff;
    font-size: 18px;
    background: orange;
    text-decoration: none;
    margin-top: 15px;
  }

  .index-part2 .item .item-cover img {
    width: 100%;
  }

  .index-part3 {
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    display: flex;
    justify-content: flex-start;

  }

  .index-part3 .list {
    width: 48%;
    margin-right: 4%;
  }

  .index-part3 .list .item1 {
    position: relative;
    width: 100%;
    height: 280px;
    background: url(../img/llm2.png)
      no-repeat center center;
    background-size: 100%;
    margin-top: -10px;
  }

  .index-part3 .list .item1 .item-box {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
  }

  .index-part3 .list .item1 .title,
  .index-part3 .list .item2 .title,
  .index-part3 .list .item3 .title,
  .index-part3 .list .item4 .title,
  .index-part3 .list .item5 .title{
    font-size: 28px;
  }

  .index-part3 .list .item1 .intro {
    font-size: 18px;
    padding: 40px 0 40px 0;
  }

  .index-part3 .list .item2 {
    position: relative;
    margin-top: 37px;
    padding-left: 350px;
    height: 350px;
    background: url(../img/iptv.jpg) no-repeat;
    background-size: 100%;
  }

  .index-part3 .list .item2 .item-box {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
    margin-bottom: 20px;
  }

  .index-part3 .list .item2 .intro {
    font-size: 18px;
    padding-top: 20px;
  }

  .index-part3 .list .item3 {
    position: relative;
    width: 100%;
    height: 350px;
    background: url(../img/whj.jpg)
      no-repeat;
    background-size: 100%;
    text-align: right;
  }
  .index-part3 .list .item3 .item-box {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
  }
  .index-part3 .list .item3 .intro {
    font-size: 18px;
    padding: 40px 0 40px 0;
    text-align: left;
  }
.index-part3 .list .item4 {
    position: relative;
    width: 100%;
    height: 320px;
    margin-top: 37px;
    background: url(../img/gh.jpg) no-repeat;
    background-size: 100%;
    text-align: right;
  }
  .index-part3 .list .item4 .item-box {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
  }

  .index-part3 .list .item4 .intro {
    font-size: 18px;
    padding: 40px 0 40px 0;
    text-align: left;
  }
  .index-part3 .list .item5 {
      position: relative;
      width: 100%;
      height: 400px;
      margin-top: 37px;
      background: url(../img/jyj.jpg)
        no-repeat;
      background-size: 100%;
      text-align: right;
    }
    .index-part3 .list .item5 .item-box {
      position: absolute;
      bottom: 0;
      left: 0;
      width: 90%;
      margin: 0 5%;
      color: #fff;
      z-index: 9;
    }
    .index-part3 .list .item5 .intro {
      font-size: 18px;
      padding: 40px 0 40px 0;
      text-align: left;
    }
}

@media screen and (min-width: 1900px) {
  .banner {
    width: 100%;
    height: 718px;
    background: url(../img/banner.jpg) no-repeat center center;
    background-size: cover;
  }
  
  .banner a {
      display: block;
      width: 100%;
      height: 100%;
  }
}

@media screen and (max-width: 786px) {
  main {
    padding-bottom: 50px;
  }

  .banner {
    width: 100%;
    height: 250px;
    background: url(../img/banner.jpg) no-repeat center
      center;
    background-size: 100% 100%;
    position: relative;
    opacity: 1;
  }
  
 .banner .apply_btn {
    position: absolute;
    z-index: 2;
    display: block;
    bottom: 40%;
    margin: 0 auto;
    width: 150px;
    height: 40px;
    line-height: 40px;
    border-radius: 10px;
    font-weight: 700;
    margin-left: -75px;
    left: 50%;
    color: #fff;
    background: #ee5030;
    font-size: 16px;
    text-align: center;
    z-index: 9;
  }

  .info {
    width: 100%;
    flex-wrap: wrap;
    margin: 30px auto;
  }

  .about-content,
  .video {
    width: 100%;
  }

  video {
    width: 100%;
  }

  .about-content h2,
  .about-content p {
    padding: 0 20px;
  }

  .about-content h2 {
    font-weight: bold;
    font-size: 32px;
    letter-spacing: 0.03em;
    margin: 0;
  }

  .about-content p.highlight {
    font-size: 20px;
    font-style: italic;
    color: #ff6725;
    font-weight: 600;
    margin-top: 20px;
    margin-bottom: 20px;
  }

  .about-content p {
    font-size: 14px;
    line-height: 25px;
    text-align: justify;
  }

  .about-content .more {
    margin-left: 20px;
  }

  .video {
    margin-top: 50px;
  }

  .index-title {
    text-align: center;
    padding: 25px 0 30px 0;
  }

  .index-title .english-title {
    font-size: 14px;
    line-height: 24px;
    font-weight: 400;
    color: #666666;
    padding: 0 25px;
    margin: 0 auto;
  }

  .index-title h2::after {
    border-bottom: 3px solid #1a1a1a;
    bottom: 0;
    content: "";
    height: 3px;
    left: 0;
    margin: 0 auto;
    position: absolute;
    right: 0;
    width: 10%;
  }

  .index-title h2 {
    font-size: 35px;
    line-height: 35px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 20px;
    color: #1a1a1a;
    position: relative;
  }

  .index-part1 {
    position: relative;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }

  .index-part1 .send-word {
    position: relative;
    width: 1000px;
    margin: 0 auto;
    padding: 0 100px 51px 100px;
  }

  .index-part1 .send-word .title {
    font-size: 28px;
    color: #1a1a1a;
    text-align: center;
    line-height: 67px;
    padding-bottom: 20px;
  }

  .index-part1 .send-word .content {
    font-size: 16px;
    color: #000;
    text-align: center;
  }

  .index-part1 .icon-list {
    text-align: center;
    padding: 30px 0 50px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }

  .index-part1 .icon-list .item.icon1 {
    background: url(https://yes-go-1252041857.cos.ap-guangzhou.myqcloud.com/%E5%AE%98%E7%BD%91/img/index/icon1.png)
      no-repeat 15px 15px;
    background-size: 50px;
  }

  .index-part1 .icon-list .item.icon2 {
    background: url(https://yes-go-1252041857.cos.ap-guangzhou.myqcloud.com/%E5%AE%98%E7%BD%91/img/index/icon4.png)
      no-repeat 18px 15px;
    background-size: 50px;
  }

  .index-part1 .icon-list .item.icon4 {
    background: url(https://yes-go-1252041857.cos.ap-guangzhou.myqcloud.com/%E5%AE%98%E7%BD%91/img/index/icon2.png)
      no-repeat 25px 15px;
    background-size: 40px;
  }

  .index-part1 .icon-list .item.icon3 {
    background: url(https://yes-go-1252041857.cos.ap-guangzhou.myqcloud.com/%E5%AE%98%E7%BD%91/img/index/icon3.png)
      no-repeat 24px 15px;
    background-size: 40px;
  }

  .index-part1 .icon-list .item {
    display: inline-block;
    width: 80px;
    height: 70px;
    line-height: 100px;
    font-size: 16px;
    color: #1a1a1a;
    font-weight: 700;
    text-align: right;
  }

  .index-part1 .about-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }

  .index-part1 .about-list .item {
    position: relative;
    margin-bottom: 30px;
    width: 300px;
    height: 300px;
    background: #000;
    color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: -1px 1px 14px 0 rgb(151 122 103 / 18%);
    border-color: #eee;
  }

  .index-part1 .about-list .item .title {
    line-height: 50px;
    font-size: 20px;
    color: #d9d8d8;
    position: absolute;
    top: 200px;
    padding-left: 20px;
  }

  .index-part1 .about-list .item .content {
    font-size: 14px;
    color: #b5b5b5;
    margin: 0 auto;
    position: absolute;
    bottom: 10px;
    padding: 0 20px;
  }

  .index-part1 .about-list .item img {
    position: absolute;
    top: 0;
    width: 100%;
  }

  .index-part2 {
    width: 100%;
    margin-top: 10px;
    overflow: hidden;
  }

  .index-part2 .item {
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 50px;
  }

  .index-part2 .item:nth-child(2) {
    flex-direction: column-reverse;
  }
  .index-part2 .item:nth-child(4) {
    flex-direction: column-reverse;
  }

  .index-part2 .item .item-intro {
    width: 100%;
  }

  .index-part2 .item .item-cover {
    width: 100%;
  }

  .index-part2 .item .intro-box {
    width: 100%;
    margin: 20px auto;
    color: #1a1a1a;
  }

  .index-part2 .item .intro-box .title-english {
    font-size: 18px;
    padding: 0 20px;
  }

  .index-part2 .item .intro-box .title {
    padding: 0 20px;
    font-size: 24px;
    color: #1a1a1a;
    margin: 20px 0 0;
    font-weight: 700;
  }

  .index-part2 .item .intro-box .content {
    padding: 15px 20px 0;
    font-size: 14px;
	text-align: justify;
	line-height: 25px;
  }

  .more {
    display: block;
    width: 130px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    color: #fff;
    font-size: 18px;
    background: orange;
    text-decoration: none;
    margin-top: 30px;
    margin-left: 20px;
  }

  .index-part2 .item .item-cover img {
    width: 100%;
  }

  .index-part3 {
    margin: 0 auto;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
  }

  .index-part3 .list {
    width: 100%;
  }

  .item1,
  .item2,
  .item3,
  .item4 {
    margin-bottom: 20px;
  }

  .index-part3 .list .item1 {
    position: relative;
    width: 100%;
    height: 380px;
    background: url(../img/llm2.png)
      no-repeat center center;
    background-size: 100%;
    margin-top: -10px;
  }

  .index-part3 .list .item1 .item-box {
    position: absolute;
    bottom: 40px;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
  }

  .index-part3 .list .item1 .title,
  .index-part3 .list .item2 .title,
  .index-part3 .list .item3 .title,
  .index-part3 .list .item4 .title {
    font-size: 20px;
    font-weight: 600;
  }

  .index-part3 .list .item1 .subhead {
    font-size: 14px;
  }

  .index-part3 .list .item1 .intro {
    font-size: 14px;
    margin: 20px 0;
  }

  .index-part3 .list .item2 {
    position: relative;
    height: 280px;
    background: url(../img/jyj.jpg) no-repeat;
    background-size: 100%;
  }

  .index-part3 .list .item2 .item-box {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
    margin-bottom: 20px;
  }

  .index-part3 .list .item2 .intro {
    font-size: 14px;
    padding: 20px 0;
  }

  .index-part3 .list .item3 {
    position: relative;
    width: 100%;
    height: 250px;
    background: url(../img/whj.jpg)
      no-repeat;
    background-size: 100%;
    text-align: left;
  }

  .index-part3 .list .item4 {
    position: relative;
    width: 100%;
    height: 300px;
    background: url(../img/gh.jpg)
      no-repeat;
    background-size: 100%;
    text-align: left;
  }
.index-part3 .list .item5 {
    position: relative;
    width: 100%;
    height: 300px;
    background: url(../img/jyj.jpg)
      no-repeat;
    background-size: 100%;
    text-align: left;
  }
  .index-part3 .list .item3 .item-box {
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
  }
  .index-part3 .list .item3 .subhead {
    font-size: 14px;
  }
  .index-part3 .list .item3 .intro {
    font-size: 14px;
    padding: 20px 0;
    text-align: left;
  }

  .index-part3 .list .item4 .item-box {
    position: absolute;
    bottom: 0px;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
  }
.index-part3 .list .item5 .item-box {
    position: absolute;
    bottom: 0px;
    left: 0;
    width: 90%;
    margin: 0 5%;
    color: #fff;
    z-index: 9;
  }
  .index-part3 .list .item4 .subhead {
    font-size: 14px;
  }

  .index-part3 .list .item4 .intro {
    font-size: 14px;
    padding: 20px 0;
    text-align: left;
  }
  .index-part3 .list .item5 .intro {
    font-size: 14px;
    padding: 20px 0;
    text-align: left;
  }
}