@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/contact_us/contact_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 .address {
    font-size: 1rem;
    width: 89.33%;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 7.4em 0 11.7em 0;
    position: relative;
  }
  
  main .address #container {
    width: 79.31%;
    height: 46.9em;
  }
  
  main .address section {
    position: absolute;
    top: 0;
    left: 0;
    width: 39.62%;
    z-index: 20;
  }
  
  main .address section .addr_txt {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #4271ee;
    padding-bottom: 2.9em;
    margin-top: 14.55em;
  }
  
  main .address section .addr_txt p {
    width: 70.08%;
    font-size: 1.6em;
    font-family: Source Han Sans CN, Source Han Sans CN-Bold;
    font-weight: 700;
    text-align: left;
    color: #ffffff;
    margin-top: 3.75rem;
  }
  
  main .address section .addr_txt ul {
    width: 70.08%;
    margin-top: 1.22em;
    padding-top: 1.57em;
    border-top: 1px solid #ffffff;
    border-bottom: 1px solid #ffffff;
  }
  
  main .address section .addr_txt ul li {
    width: 100%;
    margin-bottom: 1em;
    display: flex;
    align-items: flex-start;
  }
  
  main .address section .addr_txt ul li .add_tb {
    width: 14.17%;
  }
  
  main .address section .addr_txt ul li .add_tb img {
    min-width: 53.44%;
    max-width: 64.05%;
    margin-top: .3em;
  }
  
  main .address section .addr_txt ul li .add_inn {
    width: 81.58%;
    display: flex;
    flex-direction: column;
  }
  
  main .address section .addr_txt ul li .add_inn span {
    font-size: 1em;
    font-family: Source Han Sans SC, Source Han Sans SC-Normal;
    font-weight: normal;
    text-align: left;
    color: #ffffff;
    line-height: 1.5em;
  }
  
  main .address section .addr_txt .add_btn {
    width: 70.08%;
    margin-top: 1.12em;
  }
  
  main .address section .addr_txt .add_btn a {
    width: 49.16%;
    height: 3.6em;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #38be86;
  }
  
  main .address section .addr_txt .add_btn a div {
    width: 1.8em;
    height: 2.05em;
    background-image: url(../images/tb_logo01.png);
    background-size: 100%;
    background-position: center;
    background-repeat: no-repeat;
    margin-right: 1.07em;
  }
  
  main .address section .addr_txt .add_btn a span {
    font-size: 1.3em;
    font-family: Source Han Sans CN, Source Han Sans CN-Normal;
    font-weight: normal;
    text-align: left;
    color: #ffffff;
    line-height: 1.6em;
  }