/* 超小屏幕（手机，小于 768px） */
/* 没有任何媒体查询相关的代码，因为这在 Bootstrap 中是默认的（还记得 Bootstrap 是移动设备优先的吗？） */
/* 小屏幕（平板，大于等于 768px） */
/* 中等屏幕（桌面显示器，大于等于 992px） */
@media (min-width: 992px) {
  .marginT1 {
    margin-top: 80px;
  }
  .marginT2 {
    margin-top: 30px;
  }
  .sec_title h1 {
    font-size: 34px;
  }
  .sec_title h2 {
    color: #eee;
    margin-bottom: -20px;
    font-weight: bold;
    font-size: 34px;
  }
  .pro_info ul {
    line-height: 30px;
    max-width: 600px;
  }
  .lx .container .lx_r {
    border-left: 1px solid #fff;
    line-height: 30px;
    min-height: 152px;
    padding-left: 50px;
  }
  .lx .container .lx_l {
    border-right: 1px solid #ccc;
    padding-left: 0;
  }
}
/* 大屏幕（大桌面显示器，大于等于 1200px） */
@media (min-width: 1200px) {
  .ny_litpic {
    max-width: 100%;
    margin-right: 20px;
    margin-bottom: 10px;
    width: 300px;
    border: 1px solid #eee;
  }
  .icon_list {
    padding-top: 80px;
  }
  .icon_list .icon_item {
    border-right: 1px solid #eee;
  }
  .icon_list .icon_item:first-child {
    border-left: 1px solid #eee;
  }
  header {
    background: #fff;
  }
  header .container nav {
    width: 750px;
    margin-top: 50px;
  }
  header .container nav ul {
    display: flex;
    justify-content: space-between;
  }
  header .container nav ul li a {
    font-size: 16px;
    font-weight: bold;
  }
  header .container nav ul li.active a {
    color: #004e99;
  }
  .container {
    width: 1200px;
    padding: 0;
  }
  .pro_info {
    position: relative;
    height: 326px;
  }
  .pro_info ul {
    font-size: 16px;
    line-height: 30px;
    position: absolute;
    left: 75px;
    top: 30%;
  }
  .more {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    font-size: 16px;
    padding: 0;
  }
  .about {
    padding: 50px 0;
  }
  .about .more2 {
    width: 170px;
    background: #fff;
    color: #004e99;
    position: absolute;
    left: 50%;
    bottom: -24px;
    transform: translateX(-50%);
    padding: 10px 40px;
    font-size: 16px;
    border: 4px solid #1771af;
    border-radius: 6px;
  }
  .about_wrap {
    position: relative;
    border: 4px solid rgba(255, 255, 255, 0.8);
    height: 600px;
  }
  .about_wrap:hover {
    border: 4px solid rgba(255, 255, 255, 0.2);
  }
  .about_wrap:hover .more2 {
    background: #004e99;
    color: #fff;
    border: 4px solid transparent;
  }
  .about_wrap .aboutL {
    height: 600px;
    overflow: hidden;
    width: 40%;
    float: left;
  }
  .about_wrap .aboutR {
    width: 60%;
    float: right;
  }
  .about_wrap .aboutR .about_text {
    padding-left: 60px;
    padding-right: 60px;
    padding-bottom: 0;
  }
  .about_wrap .aboutR .about_text h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 30px;
  }
  .about_wrap .aboutR .about_text .about_content {
    text-indent: 2em;
    line-height: 36px;
    font-size: 16px;
  }
  .about_wrap .aboutR .more2 {
    background: #004e99;
    color: #fff;
    display: block;
    margin: 0 auto;
    margin-top: 30px;
    width: 150px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    font-size: 16px;
  }
  .about_wrap .aboutR .more2:hover {
    background: #db261f;
    transition: all 0.5s ease;
  }
  .proL {
    width: 300px;
    float: left;
    background: #fff;
    line-height: 40px;
    box-shadow: 5px 5px 5px #ccc;
  }
  .proL ul.pro_nav li {
    background: url(../images/icon_l.png) 0 center no-repeat;
  }
  .proL ul.pro_nav li:hover {
    background: url(../images/icon_l2.png) 0 center no-repeat;
  }
  .proL ul.pro_nav li a {
    display: block;
    border-bottom: 1px dashed #cacaca;
    padding: 0 20px;
    width: 240px;
    margin: 0 auto;
  }
  .proL ul.pro_nav li:last-child a {
    border: none;
  }
  .proL .lx {
    background: #004e99 url(../images/prol_b.jpg) center no-repeat;
    background-size: cover;
    padding: 18px 10px;
    color: #fff;
  }
  .proL .lx .wrap {
    border: 1px solid #fff;
    padding: 10px;
  }
  .proL .lx h3 {
    text-align: center;
    margin-bottom: 20px;
  }
  .proL .lx .cname {
    font-size: 18px;
  }
  .proL .lx_info {
    line-height: 30px;
  }
  .proR {
    width: 850px;
    float: right;
  }
  .pro_center {
    background: url(../images/body_bg.jpg) left top no-repeat;
  }
}