@media screen and (min-width: 1024px) {
  .three-nav {
    width: 100%;
    min-width: 1200px;
    background-image: url(../img/group-three-bg.jpg);
    background-size: 100% 100%;
  }
  .three-nav .three-box {
    width: 1200px;
    margin: 0 auto;
    height: 184px;
    padding: 1px 30px;
    overflow: hidden;
  }
  .three-nav .three-box div {
    float: left;
  }
  .three-nav .three-box div .word1 {
    font-size: 33px;
    color: #fff;
    margin-top: 60px;
    margin-bottom: 14px;
  }
  .three-nav .three-box div .word2 {
    font-size: 15px;
    color: #fff;
  }
  .three-nav .three-box img {
    height: 184px;
    float: right;
  }
  .four-nav {
    width: 100%;
    min-width: 1200px;
    margin-bottom: 16px;
  }
  .four-nav .four-box {
    width: 1200px;
    margin: 0 auto;
    height: 73px;
    border-bottom: 1px solid #dedede;
  }
  .four-nav .four-box .left-four {
    float: left;
  }
  .four-nav .four-box .left-four img {
    float: left;
    margin-top: 29px;
    margin-right: 15px;
  }
  .four-nav .four-box .left-four p {
    font-size: 16px;
    color: #8a8a8a;
    float: left;
    line-height: 72px;
  }
  .four-nav .four-box .left-four span {
    font-size: 16px;
    color: #8a8a8a;
    float: left;
    margin: 0 6px;
    line-height: 72px;
  }
  .four-nav .four-box .right-four {
    float: right;
  }
  .four-nav .four-box .right-four a {
    line-height: 71px;
    font-size: 16px;
    color: #444;
    display: block;
    width: 94px;
    float: left;
    border-bottom: 2px solid transparent;
    text-align: center;
  }
  .four-nav .four-box .right-four a:hover {
    color: #0D306C;
    border-color: #0D306C;
  }
  .four-nav .four-box .right-four .act {
    color: #0D306C;
    border-bottom: 2px solid #0D306C;
  }
  .nav-tit {
    height: 38px;
    background-color: #f6f6f6;
    padding-left: 10px;
    margin-bottom: 20px;
  }
  .nav-tit span {
    display: block;
    float: left;
    height: 18px;
    margin-top: 10px;
    width: 2px;
    background-color: #0F306C;
  }
  .nav-tit p {
    padding-left: 10px;
    color: #0F306C;
    font-size: 18px;
    line-height: 38px;
    float: left;
  }
  .five-nav {
    width: 100%;
    min-width: 1200px;
    margin-bottom: 30px;
  }
  .five-nav .five-box {
    width: 1200px;
    margin: 0 auto;
  }
  .five-nav .five-box .five-word {
    padding: 0 20px;
    font-size: 16px;
    color: #535353;
    text-indent: 32px;
    line-height: 32px;
    margin-bottom: 40px;
  }
  .five-nav .five-box .five-body {
    position: relative;
    margin-bottom: 30px;
  }
  .five-nav .five-box .five-body .word-box {
    width: 800px;
    margin: 0 auto;
  }
  .five-nav .five-box .five-body .word-box p {
    font-size: 20px;
    color: #333;
    width: 340px;
    line-height: 60px;
    float: left;
  }
  .five-nav .five-box .five-body .word-box p img {
    float: left;
    margin-top: 20px;
    margin-right: 5px;
  }
  .five-nav .five-box .five-body .word-box p:nth-child(even) {
    float: right;
  }
  .five-nav .five-box .five-body .img-box .img1 {
    float: left;
  }
  .five-nav .five-box .five-body .img-box .img2 {
    float: right;
  }
  .five-nav .five-box2 {
    width: 1200px;
    margin: 0 auto;
  }
  .five-nav .five-box2 img {
    width: 100%;
    margin-bottom: 26px;
  }
  .five-nav .five-box2 .five-word {
    padding: 0 20px;
    font-size: 16px;
    color: #535353;
    text-indent: 32px;
    line-height: 32px;
  }
  .six-nav {
    width: 100%;
    min-width: 1200px;
    margin-bottom: 30px;
  }
  .six-nav .six-box {
    width: 1200px;
    margin: 0 auto;
  }
  .six-nav .six-box .video-box {
    position: relative;
  }
  .six-nav .six-box .video-box video {
    width: 1200px;
    height: 420px;
  }
  .six-nav .six-box .video-box .play-btn {
    position: absolute;
    width: 50px;
    height: 50px;
    top: 180px;
    left: 575px;
    cursor: pointer;
  }
  .seven-nav {
    width: 100%;
    min-width: 1200px;
    margin-bottom: 30px;
  }
  .seven-nav .seven-box {
    width: 1200px;
    margin: 0 auto;
  }
  .seven-nav .seven-box .word1 {
    padding: 0 20px;
    font-size: 18px;
    color: #0D306C;
    font-weight: bold;
    margin-bottom: 20px;
  }
  .seven-nav .seven-box .word2 {
    padding: 0 20px;
    font-size: 16px;
    color: #535353;
    text-indent: 32px;
    line-height: 32px;
    margin-bottom: 40px;
  }
  .seven-nav .seven-box .seven-body {
    margin-bottom: 50px;
  }
  .seven-nav .seven-box .seven-body div {
    width: 290px;
    float: left;
    margin-right: 10px;
    border: 1px solid #dedede;
  }
  .seven-nav .seven-box .seven-body div img {
    width: 100%;
  }
  .seven-nav .seven-box .seven-body2 {
    margin-bottom: 30px;
  }
  .seven-nav .seven-box .seven-body2 img {
    display: block;
    margin: 0 auto;
    margin-bottom: 20px;
  }
  .seven-nav .seven-box .seven-body2 .img3,
  .seven-nav .seven-box .seven-body2 .img4 {
    display: none;
  }
  .seven-nav .seven-box .seven-body2 div p {
    width: 290px;
    height: 38px;
    border: 1px solid #dedede;
    text-align: center;
    line-height: 36px;
    font-size: 16px;
    color: #555;
    float: left;
    margin-right: 10px;
    margin-bottom: 10px;
  }
  .seven-nav .seven-box .seven-body3 {
    margin-bottom: 50px;
  }
  .seven-nav .seven-box .seven-body3 img {
    display: block;
    margin: 0 auto;
    margin-bottom: 20px;
  }
  .seven-nav .seven-box .seven-body3 .img1,
  .seven-nav .seven-box .seven-body3 .img2,
  .seven-nav .seven-box .seven-body3 .img3 {
    display: none;
  }
  .seven-nav .seven-box .seven-body3 div p {
    width: 390px;
    height: 38px;
    border: 1px solid #dedede;
    text-align: center;
    line-height: 36px;
    font-size: 16px;
    color: #555;
    float: left;
    margin-right: 10px;
    margin-bottom: 10px;
  }
}
@media screen and (max-width: 1023px) {
  .three-nav {
    width: 100%;
    background-image: url(../img/group-three-bg.jpg);
    background-size: 100% 100%;
  }
  .three-nav .three-box {
    height: 1.9rem;
    padding: 1px .2rem;
    overflow: hidden;
  }
  .three-nav .three-box div {
    float: left;
  }
  .three-nav .three-box div .word1 {
    font-size: .38rem;
    color: #fff;
    margin-top: .5rem;
    margin-bottom: .1rem;
  }
  .three-nav .three-box div .word2 {
    font-size: .24rem;
    color: #fff;
  }
  .three-nav .three-box img {
    height: 1.9rem;
    float: right;
  }
  .four-nav {
    width: 100%;
    margin-bottom: .24rem;
  }
  .four-nav .four-box {
    width: 100%;
  }
  .four-nav .four-box .left-four {
    height: .56rem;
    background-color: #eee;
  }
  .four-nav .four-box .left-four img {
    float: left;
    height: .24rem;
    margin-top: .16rem;
    margin-left: .1rem;
    margin-right: .1rem;
  }
  .four-nav .four-box .left-four p {
    font-size: .24rem;
    color: #8a8a8a;
    float: left;
    line-height: .56rem;
  }
  .four-nav .four-box .left-four span {
    font-size: .24rem;
    color: #8a8a8a;
    float: left;
    margin: 0 .1rem;
    line-height: .56rem;
  }
  .four-nav .four-box .right-four {
    height: .69rem;
  }
  .four-nav .four-box .right-four a {
    line-height: .67rem;
    font-size: .24rem;
    color: #444;
    display: block;
    width: 25%;
    float: left;
    border-bottom: 2px solid #dedede;
    text-align: center;
  }
  .four-nav .four-box .right-four a:hover {
    color: #0D306C;
    border-color: #0D306C;
  }
  .four-nav .four-box .right-four .act {
    color: #0D306C;
    border-bottom: 2px solid #0D306C;
  }
  .nav-tit {
    height: .5rem;
    background-color: #f6f6f6;
    padding-left: .1rem;
    margin-bottom: .2rem;
  }
  .nav-tit span {
    display: block;
    float: left;
    height: .34rem;
    margin-top: .07rem;
    width: 2px;
    background-color: #0F306C;
  }
  .nav-tit p {
    padding-left: .1rem;
    color: #0F306C;
    font-size: .26rem;
    line-height: .5rem;
    float: left;
  }
  .five-nav {
    width: 100%;
    padding: 0 .15rem;
  }
  .five-nav .five-box {
    background-image: url(../img/one-group2.jpg);
    background-position: bottom center;
    background-repeat: no-repeat;
  }
  .five-nav .five-box .five-word {
    font-size: .24rem;
    color: #535353;
    text-indent: .32rem;
    line-height: .4rem;
    margin-bottom: .2rem;
  }
  .five-nav .five-box .five-body {
    width: 100%;
    margin: 0 auto;
    position: relative;
  }
  .five-nav .five-box .five-body .word-box p {
    font-size: .26rem;
    color: #333;
    line-height: .6rem;
  }
  .five-nav .five-box .five-body .word-box p img {
    float: left;
    height: .24rem;
    margin-right: .06rem;
    margin-top: .2rem;
  }
  .five-nav .five-box .five-body .img-box .img1 {
    width: 100%;
    margin-bottom: .2rem;
  }
  .five-nav .five-box .five-body .img-box .img2 {
    width: 100%;
    margin-bottom: .2rem;
  }
  .five-nav .five-box2 {
    margin-top: .2rem;
  }
  .five-nav .five-box2 img {
    width: 100%;
    margin-bottom: .2rem;
  }
  .five-nav .five-box2 .five-word {
    font-size: .24rem;
    color: #535353;
    text-indent: .32rem;
    line-height: .4rem;
    margin-bottom: .2rem;
  }
  .six-nav {
    width: 100%;
    padding: 0 .15rem;
    margin-bottom: .2rem;
  }
  .six-nav .six-box video {
    width: 100%;
    min-height:3.5rem;
  }
  .seven-nav {
    width: 100%;
    padding: 0 .15rem;
    margin-bottom: .2rem;
  }
  .seven-nav .seven-box .word1 {
    padding: 0 .2rem;
    font-size: .26rem;
    color: #0D306C;
    font-weight: bold;
    margin-bottom: .2rem;
  }
  .seven-nav .seven-box .word2 {
    padding: 0 .2rem;
    font-size: .24rem;
    color: #535353;
    text-indent: .32rem;
    line-height: .4rem;
    margin-bottom: .3rem;
  }
  .seven-nav .seven-box .seven-body {
    margin-bottom: .3rem;
  }
  .seven-nav .seven-box .seven-body div {
    width: 49%;
    float: left;
    border: 1px solid #dedede;
    margin-bottom: .1rem;
  }
  .seven-nav .seven-box .seven-body div img {
    width: 100%;
  }
  .seven-nav .seven-box .seven-body div:nth-child(even) {
    float: right;
  }
  .seven-nav .seven-box .seven-body2 {
    margin-bottom: .2rem;
  }
  .seven-nav .seven-box .seven-body2 img {
    display: block;
    margin: 0 auto;
    margin-bottom: 20px;
    width: 100%;
  }
  .seven-nav .seven-box .seven-body2 .img1 {
    display: none;
  }
  .seven-nav .seven-box .seven-body2 .img2 {
    display: none;
  }
  .seven-nav .seven-box .seven-body2 .img3 {
    width: 5.3rem;
  }
  .seven-nav .seven-box .seven-body2 .img4 {
    width: 100%;
  }
  .seven-nav .seven-box .seven-body2 div p {
    height: .44rem;
    border: 1px solid #dedede;
    text-align: center;
    line-height: .42rem;
    font-size: .26rem;
    color: #555;
    margin-bottom: .1rem;
  }
  .seven-nav .seven-box .seven-body3 {
    margin-bottom: .3rem;
  }
  .seven-nav .seven-box .seven-body3 img {
    display: block;
    margin: 0 auto;
    margin-bottom: 20px;
    width: 100%;
  }
  .seven-nav .seven-box .seven-body3 .img1,
  .seven-nav .seven-box .seven-body3 .img2 {
    display: none;
  }
  .seven-nav .seven-box .seven-body3 .img3 {
    width: 7.2rem;
  }
  .seven-nav .seven-box .seven-body3 .img4 {
    width: 6.8rem;
  }
  .seven-nav .seven-box .seven-body3 .img5 {
    width: 4.4rem;
  }
  .seven-nav .seven-box .seven-body3 div p {
    width: 100%;
    height: .44rem;
    border: 1px solid #dedede;
    text-align: center;
    line-height: .42rem;
    font-size: .26rem;
    color: #555;
    float: left;
    margin-bottom: .1rem;
  }
}