@media screen and (max-width: 1920px) {
    html, body {
      font-size: 20px;
    }
  }
  
  @media screen and (max-width: 1872px) {
    html, body {
      font-size: 19.5px;
    }
  }
  
  @media screen and (max-width: 1824px) {
    html, body {
      font-size: 19px;
    }
  }
  
  @media screen and (max-width: 1776px) {
    html, body {
      font-size: 18.5px;
    }
  }
  
  @media screen and (max-width: 1728px) {
    html, body {
      font-size: 18px;
    }
  }
  
  @media screen and (max-width: 1680px) {
    html, body {
      font-size: 17.5px;
    }
  }
  
  @media screen and (max-width: 1632px) {
    html, body {
      font-size: 17px;
    }
  }
  
  @media screen and (max-width: 1584px) {
    html, body {
      font-size: 16.5px;
    }
  }
  
  @media screen and (max-width: 1536px) {
    html, body {
      font-size: 16px;
    }
  }
  
  @media screen and (max-width: 1488px) {
    html, body {
      font-size: 15.5px;
    }
  }
  
  @media screen and (max-width: 1440px) {
    html, body {
      font-size: 15px;
    }
  }
  
  @media screen and (max-width: 1395px) {
    html, body {
      font-size: 14.5px;
    }
  }
  
  @media screen and (max-width: 1344px) {
    html, body {
      font-size: 14px;
    }
  }
  
  @media screen and (max-width: 1296px) {
    html, body {
      font-size: 13.5px;
    }
  }
  
  @media screen and (max-width: 1248px) {
    html, body {
      font-size: 13px;
    }
  }
  
  main .banners {
    margin-top: -1px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    background-image: url(../images/case/case_banner_img01.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    font-size: 1.2rem;
  }
  
  main .banners p {
    width: 89.635%;
    font-size: 2.5em;
    font-family: Source Han Sans CN, Source Han Sans CN-Bold;
    font-weight: 700;
    text-align: left;
    color: #ffffff;
    margin: 14.35rem 0 18.4rem 0;
  }
  
  main .case_tit {
    display: flex;
    align-items: center;
    font-size: 1rem;
    width: 89.33%;
    margin: 5.15em auto 9.15em auto;
    background: #ffffff;
    box-shadow: 0px 3px 6px 0px rgba(0, 0, 0, 0.16);
  }
  
  main .case_tit .case_phpne {
    width: 12.6%;
    height: 6.85em;
    background: #38be86;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  
  main .case_tit .case_phpne p {
    font-size: 1.8em;
    font-family: DINCondensedC, DINCondensedC-Regular;
    font-weight: 400;
    text-align: left;
    color: #ffffff;
    margin-bottom: .175em;
  }
  
  main .case_tit .case_phpne span {
    font-size: 1em;
    font-family: Source Han Sans SC, Source Han Sans SC-Bold;
    font-weight: 700;
    text-align: left;
    color: #ffffff;
  }
  
  main .case_tit .case_header {
    width: 87.4%;
  }
  
  main .case_tit .case_header ul {
    width: 100%;
    display: flex;
    align-items: center;
    position: relative;
  }
  
  main .case_tit .case_header ul div {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 2em;
    right: 0;
    margin: auto;
    width: 6.85em;
    height: 6.85em;
  }
  
  main .case_tit .case_header ul div img {
    width: 100%;
  }
  
  main .case_tit .case_header ul li {
    width: 9.77%;
    margin-left: 4.42em;
    padding-bottom: .35em;
    border-bottom: 1px solid rgba(56, 190, 134, 0);
  }
  
  main .case_tit .case_header ul li:nth-child(1) {
    margin-left: 3.7em;
  }
  
  main .case_tit .case_header ul li:hover {
    cursor: pointer;
    border-bottom: 1px solid #38be86;
  }
  
  main .case_tit .case_header ul li:hover a {
    opacity: 1;
  }
  
  main .case_tit .case_header ul li a {
    width: 100%;
    opacity: 0.51;
    font-size: 1em;
    font-family: Source Han Sans SC, Source Han Sans SC-Bold;
    font-weight: 700;
    text-align: left;
    color: #000000;
  }
  
  main .case_tit .case_header ul li.active {
    border-bottom: 1px solid #38be86;
  }
  
  main .case_tit .case_header ul li.active a {
    opacity: 1;
  }
  
  main .case_box {
    font-size: 1rem;
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: center;
    animation: caseflex 1s 1 ease;
  }
  
  main .case_box .case_list {
    width: 89.33%;
    margin-bottom: 5.9em;
  }
  
  main .case_box .case_list:nth-child(even) a {
    flex-direction: row-reverse;
  }
  
  main .case_box .case_list:nth-child(even) a .case_inner p {
    margin-left: 50.19%;
  }
  
  main .case_box .case_list:nth-child(even) a .case_inner .gdt {
    margin-left: 50.19%;
  }
  
  main .case_box .case_list:nth-child(even) a .case_inner span {
    margin-left: 50.19%;
  }
  
  main .case_box .case_list:nth-child(even) a .case_inner .movese {
    margin-left: 50.19%;
  }
  
  main .case_box .case_list:nth-child(even) a .imgs {
    right: auto;
    left: 0;
  }
  
  main .case_box .case_list:hover a .imgs img {
    transform: scale(1.06);
  }
  
  main .case_box .case_list a {
    width: 100%;
    position: relative;
    display: flex;
    align-items: flex-start;
  }
  
  main .case_box .case_list a .case_inner {
    width: 60%;
    margin-bottom: 4.05em;
    padding: 5.97em 0 4.44em 0;
    background: #f6f8fb;
  }
  
  main .case_box .case_list a .case_inner p {
    width: 44.57%;
    font-size: 1.4em;
    font-family: Source Han Sans CN, Source Han Sans CN-Bold;
    font-weight: 700;
    text-align: left;
    color: #000000;
    margin-left: 5.6%;
    display: inline-block;
    margin-bottom: 1.47rem;
  }
  
  main .case_box .case_list a .case_inner .gdt {
    width: 6.09%;
    height: .3em;
    background-color: #38be86;
    margin-left: 5.6%;
    position: relative;
    margin-bottom: 2.12em;
  }
  
  main .case_box .case_list a .case_inner span {
    width: 44.57%;
    display: inline-block;
    margin-left: 5.6%;
    opacity: 0.78;
    font-size: 1em;
    font-family: Source Han Sans SC, Source Han Sans SC-Normal;
    font-weight: normal;
    text-align: left;
    color: #000000;
    line-height: 1.5em;
    margin-bottom: 4.3rem;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
  }
  
  main .case_box .case_list a .case_inner .movese {
    margin-left: 5.6%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 17.61%;
    height: 2.65em;
    background: linear-gradient(135deg, #6e95f9, #365bc9);
    box-shadow: 0px 3px 10px 0px rgba(56, 93, 190, 0.4);
    font-size: 1em;
    font-family: Source Han Sans SC, Source Han Sans SC-Normal;
    font-weight: normal;
    text-align: left;
    color: #ffffff;
    line-height: 1.4em;
  }
  
  main .case_box .case_list a .case_inner .movese div {
    width: 1.3em;
    height: 1.3em;
    position: relative;
    margin-left: 16.48%;
    background-image: url(../images/index/move_img01.png);
    background-size: 100%;
    background-position: center;
    background-repeat: no-repeat;
  }
  
  main .case_box .case_list a .imgs {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 64.93%;
    overflow: hidden;
  }
  
  main .case_box .case_list a .imgs img {
    width: 100%;
    display: block;
    transition-duration: 1s;
  }
  
  @keyframes caseflex {
    0% {
      transform: translateY(35px);
    }
    100% {
      transform: translateY(0);
    }
  }