@charset "utf-8";
/* CSS Document */
@media screen and (max-width: 1900px) {
  .nav a {
    font-size: 18px;
  }
  .topPhone {
    font-size: 18px;
    margin: -42px 2% 0;
  }
}
@media screen and (max-width: 1680px) {
  .nav a {
    font-size: 16px;
  }
  .topPhone {
    font-size: 16px;
  }
}
@media only screen and (max-width: 1440px) {
  .content {
    width: 1200px;
  }
  .wrap_box {
    font-size: 14px;
  }
  .topPhone {
    width: 11%;
  }
  .notice_list {
    width: 1041px;
  }
  .notice_list .slides {
    font-size: 16px;
  }
  .features_list_pic_box {
    width: 728px;
    height: 498px;
  }
  .features_list_pic_box .features_list_pic {
    width: 728px;
    height: 498px;
  }
  .features_list_con {
    width: 472px;
    height: 498px;
  }
  .features_list_con li {
    width: 235px;
    height: 248px ;
  }
  .features_list_con li h3 {
    font-size: 20px;
  }
  .features_list_con li p {
    font-size: 14px;
  }
  .pro_type li h3 {
    font-size: 20px;
  }
  .history {
    width: 1200px;
  }
  .history .swiper-container {
    width: 1024px;
  }
  .business_text2 h2 {
    font-size: 60px;
  }
  .business_text2 h4 {
    font-size: 40px;
  }
  .business_con h3 {
    font-size: 28px;
  }
  .business_con p {
    font-size: 18px ;
  }
}