/**/

@media screen and (min-width: 1441px) and (max-width: 1600px) {
  html {
    font-size: 90px;
  }
}
@media screen and (min-width: 1201px) and (max-width: 1440px) {
  html {
    font-size: 80px;
  }
}
@media screen and (min-width: 981px) and (max-width: 1200px) {
  html {
    font-size: 70px;
  }
}
@media screen and (min-width: 769px) and (max-width: 980px) {
  .header .nav {
    display: none;
  }
  .container {
    width: 100%;
    padding: 0 15px;
    max-width: 100%;
  }

  .hidden-xs {
    display: none;
  }
  .visible-xs {
    display: block;
  }
}

/**/
@media (max-width: 768px) {
  .m_nav {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translate(0, -50%);
    width: 25px;
    z-index: 99;
  }
  .m_nav i {
    display: block;
    height: 2px;
    background: #d71440;
  }
  .m_nav i + i {
    margin-top: 0.06rem;
  }
  .cross i:nth-of-type(1) {
    -webkit-transform: translateY(8px) rotate(-45deg);
    -ms-transform: translateY(8px) rotate(-45deg);
    transform: translateY(8px) rotate(-45deg);
  }
  .cross i:nth-of-type(2) {
    opacity: 0;
  }
  .cross i:nth-of-type(3) {
    -webkit-transform: translateY(-8px) rotate(45deg);
    -ms-transform: translateY(-8px) rotate(45deg);
    transform: translateY(-8px) rotate(45deg);
  }
  .container {
    width: 100%;
    padding: 0 15px;
    max-width: 100%;
  }
  .header {
    background: #fff;
    z-index: 999;
    position: sticky;
    padding: 0.15rem;
    box-shadow: 0 0 0.1rem rgba(0, 0, 0, 0.1);
    top: 0;
  }
  .header .logo img {
    width: 0.8rem;
  }
  .hidden-xs,
  .header .nav {
    display: none;
  }
  .visible-xs {
    display: block;
  }
  .homepage .one .bd ul li,
  .homepage .two .bd ul li,
  .homepage .three .bd ul li {
    width: 100%;
    padding: 0.05rem;
  }
  .homepage .one .bd ul,
  .homepage .two .bd ul,
  .homepage .three .bd ul {
    margin: -0.05rem;
  }
  .homepage .banner .bd h3 {
    font-size: 0.18rem;
  }
  .homepage .banner .bd {
    font-size: 0.14rem;
  }
  .header .btn {
    margin-right: 0.4rem;
  }
  .homepage .two {
    padding: 0;
  }
  .homepage .one,
  .homepage .three {
    padding: 0.3rem 0;
  }
  .homepage .four {
    padding: 0 0 0.4rem;
  }
  .homepage .one .bd ul a {
    height: auto;
    padding: 0.2rem;
  }
  .homepage .one .bd ul .pic {
    width: 1.5rem;
    height: 1.5rem;
  }
  .homepage,
  .homepage .four .bd,
  .homepage .four .ft {
    font-size: 0.14rem;
  }
  .homepage .one .ft {
    margin-top: 0.2rem;
    display: block;
  }
  .homepage .one .ft .flex_item a {
    width: 100%;
    margin-top: 0.1rem;
  }
  .title_common {
    font-size: 0.24rem;
  }
  .homepage .two .bd,
  .homepage .four .bd {
    margin-top: 0.2rem;
  }
  .homepage .two .bd a {
    padding: 0.15rem;
  }
  .homepage .two .bd dt b {
    font-size: 0.18rem;
  }
  .homepage .three .bd {
    margin-top: 0.2rem;
  }
  .homepage .four .bd ul {
    flex-wrap: wrap;
  }
  .homepage .four .bd ul li {
    width: 50%;
    padding-bottom: 0.2rem;
    text-align: center;
  }
  .homepage .four .bd h4 {
    font-size: 0.24rem;
  }
  .homepage .four .ft {
    margin-top: 0.2rem;
  }
  .homepage .three .bd ul li dd {
    height: auto;
    padding-bottom: 0.2rem;
  }
  .footer ul {
    flex-wrap: wrap;
    line-height: 2;
  }
  .footer ul li {
    margin: 0 0.15rem 0 0;
  }
}