@media screen and (min-width: 769px) {
  .container {
    margin: 0 auto;
    width: 1440px;
  }
  .box {
    width: 100%;
    min-width: 1440px;
  }
  .box .Navbox {
    background: url(../img/step2-back-dongtai.png) no-repeat center bottom;
    background-size: cover;
  }
  .box .Navbox .topnav-middle-content {
    width: 100%;
    height: 413px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .box .Navbox .topnav-middle-content .midbox {
    color: #fff;
    display: flex;
    align-items: flex-end;
    width: 1500px;
  }
  .box .Navbox .topnav-middle-content .midbox .cn {
    font-size: 36px;
    font-weight: 700;
  }
  .box .Navbox .topnav-middle-content .midbox .en {
    font-size: 12px;
    margin-left: 10px;
    margin-bottom: 10px;
  }
  .box .Top-guide {
    width: 100%;
    background-color: #f5f5f5;
  }
  .box .Top-guide .topbox {
    font-size: 14px;
    display: flex;
    padding: 10px 0;
    align-items: center;
    align-content: center;
  }
  .box .Top-guide .item {
    color: #717272;
  }
  .box .Top-guide .arrow {
    margin: 0 7px;
    color: #717272;
  }
  .box .Middle {
    display: flex;
    padding: 50px 0 50px 0;
    justify-content: space-between;
  }
  .box .Middle .leftbox {
    width: 1070px;
  }
  .box .Middle .leftbox .title {
    font-size: 32px;
    font-weight: 800;
  }
  .box .Middle .leftbox h1 {
    font-size: 32px;
    font-weight: 800;
    text-align: center;
  }
  .box .Middle .leftbox .tips {
    width: 100%;
    padding: 15px 0;
    font-size: 14px;
    color: #717272;
  }
  .box .Middle .leftbox .info-text {
    padding: 10px 0;
    font-size: 16px;
    line-height: 1.8em;
  }
  .box .Middle .leftbox video,
  .box .Middle .leftbox img {
    width: 50% !important;
    margin: 15px auto;
    object-fit: cover;
    display: block;
  }
  .box .Middle .rightbox {
    width: 340px;
    display: flex;
    flex-direction: column;
  }
  .box .Middle .rightbox .topitems {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 100%;
  }
  .box .Middle .rightbox .topitems .item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 98px;
    background-color: #f5f5f5;
    gap: 20px;
  }
  .box .Middle .rightbox .topitems .item .tt {
    font-size: 20px;
    font-weight: 700;
    color: #94211e;
  }
  .box .Middle .rightbox .tjbox {
    margin-top: 30px;
  }
  .box .Middle .rightbox .tjbox .titlebox {
    margin-bottom: 30px;
    display: flex;
    align-items: center;
  }
  .box .Middle .rightbox .tjbox .titlebox .fang {
    width: 10px;
    height: 10px;
    background-color: #94211e;
    margin-right: 7px;
  }
  .box .Middle .rightbox .tjbox .titlebox .tt {
    font-size: 22px;
    color: #94211e;
  }
  .box .Middle .rightbox .layui-carousel {
    width: 339px !important;
    height: 191px !important;
  }
  .box .Middle .rightbox .layui-carousel .item {
    position: relative;
  }
  .box .Middle .rightbox .layui-carousel .item .pic {
    width: 339px;
    height: 191px;
    object-fit: cover;
  }
  .box .Middle .rightbox .layui-carousel .item .botback {
    position: absolute;
    background-color: rgba(0, 0, 0, 0.7);
    left: 0;
    bottom: 0;
    width: 100%;
    height: 38px;
  }
  .box .Middle .rightbox .layui-carousel .item .tt {
    position: absolute;
    color: #fff;
    font-size: 16;
    width: 196px;
    height: 38px;
    line-height: 38px;
    padding: 0 10px;
    left: 0;
    bottom: 0;
  }
  .box .Middle .rightbox .layui-carousel .layui-carousel-ind ul {
    padding: 12px;
    position: absolute;
    right: 0;
    bottom: -35px;
  }
  .box .Middle .rightbox .botitems {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
  }
  .box .Middle .rightbox .botitems .item {
    width: 100%;
    height: 134px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 15px;
    background-color: #f5f5f4;
    padding: 20px;
  }
  .box .Middle .rightbox .botitems .item .title {
    font-size: 18px;
    font-weight: 700;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }
  .box .Middle .rightbox .botitems .item .time {
    font-size: 14px;
    color: #7b7c7b;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .box .bottom-copyright {
    width: 100%;
    min-width: 1440px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 14px;
    color: #fff;
    background-color: #262932;
    height: 95px;
  }
}
@media screen and (max-width: 769px) {
  .box {
    width: 100%;
  }
  .box .Navbox {
    background: url(../img/step2-back-dongtai.png) no-repeat center bottom;
    background-size: cover;
  }
  .box .Navbox .topnav-middle-content {
    width: 100%;
    min-height: 213px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .box .Navbox .topnav-middle-content .midbox {
    color: #fff;
    display: flex;
    align-items: flex-end;
    width: 100%;
    padding: 0 20px;
  }
  .box .Navbox .topnav-middle-content .midbox .cn {
    font-size: 36px;
    font-weight: 700;
  }
  .box .Navbox .topnav-middle-content .midbox .en {
    font-size: 12px;
    margin-left: 10px;
    margin-bottom: 10px;
  }
  .box .Top-guide {
    width: 100%;
    background-color: #f5f5f5;
    padding: 0 20px;
  }
  .box .Top-guide .topbox {
    font-size: 14px;
    display: flex;
    padding: 10px 0;
    align-items: center;
    align-content: center;
    flex-wrap: wrap;
  }
  .box .Top-guide .item {
    color: #717272;
  }
  .box .Top-guide .arrow {
    margin: 0 7px;
    color: #717272;
  }
  .box .Middle {
    display: flex;
    padding: 50px 0 50px 0;
    flex-direction: column;
  }
  .box .Middle .leftbox {
    padding: 0 20px;
    width: 100%;
  }
  .box .Middle .leftbox .title {
    font-size: 32px;
    font-weight: 800;
  }
  .box .Middle .leftbox h1 {
    font-size: 32px;
    font-weight: 800;
    text-align: center;
  }
  .box .Middle .leftbox .tips {
    width: 100%;
    padding: 15px 0;
    font-size: 14px;
    color: #717272;
  }
  .box .Middle .leftbox .info-text {
    padding: 10px 0;
    font-size: 16px;
    line-height: 1.8em;
  }
  .box .Middle .leftbox .info-video {
    width: 100%;
    margin: 15px 0;
    object-fit: cover;
  }
  .box .Middle .leftbox .info-img {
    width: 100%;
    margin: 15px 0;
    object-fit: cover;
  }
  .box .Middle .leftbox video {
    width: 80%;
    margin: 15px auto;
    object-fit: cover;
  }
  .box .Middle .leftbox img {
    width: 80%;
    margin: 15px auto;
    object-fit: cover;
  }
  .box .Middle .rightbox {
    width: 100%;
    display: flex;
    flex-direction: column;
  }
  .box .Middle .rightbox .topitems {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 100%;
  }
  .box .Middle .rightbox .topitems .item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 98px;
    background-color: #f5f5f5;
    gap: 20px;
  }
  .box .Middle .rightbox .topitems .item .icon {
    width: 30px;
  }
  .box .Middle .rightbox .topitems .item .tt {
    font-size: 20px;
    font-weight: 700;
    color: #94211e;
    white-space: nowrap;
  }
  .box .Middle .rightbox .tjbox {
    margin-top: 30px;
  }
  .box .Middle .rightbox .tjbox .titlebox {
    margin-bottom: 30px;
    display: flex;
    align-items: center;
  }
  .box .Middle .rightbox .tjbox .titlebox .fang {
    width: 10px;
    height: 10px;
    background-color: #94211e;
    margin-right: 7px;
  }
  .box .Middle .rightbox .tjbox .titlebox .tt {
    font-size: 22px;
    color: #94211e;
  }
  .box .Middle .rightbox .layui-carousel {
    width: 100% !important;
    height: auto !important;
  }
  .box .Middle .rightbox .layui-carousel .item {
    position: relative;
  }
  .box .Middle .rightbox .layui-carousel .item .pic {
    width: 100%;
    object-fit: cover;
  }
  .box .Middle .rightbox .layui-carousel .item .botback {
    position: absolute;
    background-color: rgba(0, 0, 0, 0.85);
    left: 0;
    bottom: 0;
    width: 100%;
    height: 38px;
  }
  .box .Middle .rightbox .layui-carousel .item .tt {
    position: absolute;
    color: #fff;
    font-size: 16;
    width: 196px;
    height: 38px;
    line-height: 38px;
    padding: 0 10px;
    left: 0;
    bottom: 0;
  }
  .box .Middle .rightbox .layui-carousel .layui-carousel-ind ul {
    padding: 12px;
    position: absolute;
    right: 0;
    bottom: -35px;
  }
  .box .Middle .rightbox .botitems {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 20px;
  }
  .box .Middle .rightbox .botitems .item {
    width: 100%;
    height: 134px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 15px;
    background-color: #f5f5f4;
    padding: 20px;
  }
  .box .Middle .rightbox .botitems .item .title {
    font-size: 18px;
    font-weight: 700;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }
  .box .Middle .rightbox .botitems .item .time {
    font-size: 14px;
    color: #7b7c7b;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .box .bottom-copyright {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 14px;
    color: #fff;
    background-color: #262932;
    height: 95px;
    padding: 0 20px;
  }
}