/* 去除常见标签默认的 margin 和 padding */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 设置网页统一的字体大小、行高、字体系列相关属性 */
body {
  /* min-width: 1200px; */
  font: 16px 'Helvetica Neue', Helvetica, Arial, 'Microsoft Yahei',
    'Hiragino Sans GB', 'Heiti SC', 'WenQuanYi Micro Hei', sans-serif;
  /* color: #333; */
  /* background-color: #f7f7f7; */
  /* height: 3000px; */
  /* margin-bottom: 100px; */
  overflow-x: hidden;
}
/* html {
  min-width: 1200px;
} */

/* @media screen and (max-width: 1200px) {
  html {
    min-width: 1920px;
  }
} */

/* 版心 */
.w {
  width: 1200px;
  margin: 0 auto;
}

.w_800 {
  width: 800px;
  margin: 0 auto;
}

.w_1300 {
  width: 1300px;
  margin: 0 auto;
}

/* 去除列表默认样式 */
li {
  list-style: none;
}

/* 去除默认的倾斜效果 */
em,
i {
  font-style: normal;
}

/* 去除a标签默认下划线，并设置默认文字颜色 */
a {
  text-decoration: none;
  color: #333;
}

ol,
ul {
  list-style: none;
}
/* 设置img的垂直对齐方式为居中对齐，去除img默认下间隙 */
img {
  vertical-align: middle;
}

.m_t_30 {
  margin-top: 30px;
}

.m_t_40 {
  margin-top: 40px;
}

.m_t_50 {
  margin-top: 50px;
}

.m_b_100 {
  margin-bottom: 100px;
}

/* 主题色 */
.theme_color {
  color: #02458f;
}

/* 标题 */
.tilte_base {
  color: #2379d6;
}

/* 单行溢出 */
.o_t_w {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 导航下拉框 */
.dropdown_secondary:hover .secondary_ul {
  opacity: 1;
  height: 90px;
}
.secondary_box {
  position: fixed;
  left: 0;
  top: 60px;
  width: 100%;
  /* height: 200px; */
  background: #f5f5f5;
  text-align: center;
  box-shadow: 0px 1px 10px rgba(0, 0, 0, 0.08);
  z-index: 9999;
}
.secondary_box .container_box {
  width: 1140px;
  margin: 0 auto;
}
.secondary_ul {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 0px;
  padding-top: 0px;
  margin-top: 0px;
  padding-bottom: 0px;
  margin-bottom: 0px;
  transition: all 0.5s ease;
  opacity: 0;
  overflow: hidden;
}
.secondary_ul li {
  width: 20%;
  font-size: 18px;
  line-height: 18px;
  padding-top: 20px;
}

.secondary_ul .cont_box {
  width: 100%;
  height: 100%;
  display: flex;
  position: relative;
  align-items: center;
  justify-content: flex-start;
}
.secondary_ul .icon_img {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 50px;
  height: 50px;
  margin: 0 0 20px;
  background-color: #195bfb;
  border-radius: 5px;
}
.secondary_ul .icon_img img {
  width: 36px;
  height: 36px;
}

.secondary_ul .cont_box_t {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  text-indent: 14px;
  white-space: nowrap;
  margin-bottom: 20px;
  flex-direction: column;
}

.secondary_ul .cont_box_t1 {
  font-size: 16px;
  color: #333;
}

.secondary_ul .cont_box_t2 {
  font-size: 12px;
  margin-top: 9px;
  color: #999;
}

@media (max-width: 1199px) {
  .navbar-inverse .navbar-nav > .active > a,
  .navbar-inverse .navbar-nav > .active > a:focus {
    color: #1e7efb;
  }
  .logo::before {
    top: -4px;
    left: 8px;
    width: 37px;
    height: 29px;
    background: url(../img/logo_svg_b.png) no-repeat center center;
    background-size: contain;
    z-index: 1;
  }
  .logo::after {
    font-size: 16px;
    color: #1458fb;
  }
  .secondary_box {
    position: relative;
    top: 0;
  }
  .secondary_box .container_box {
    width: 100%;
  }
  .secondary_ul {
    display: block;
  }
  .secondary_ul .cont_box_t {
    margin-bottom: 10px;
  }
  .secondary_ul .icon_img {
    display: none;
  }
  .secondary_ul .cont_box_t .active {
    color: #1e7efb;
  }
  .secondary_ul .cont_box_t2 {
    display: none;
  }
  .dropdown_secondary:hover .secondary_ul {
    height: 150px;
  }
}

@media (max-width: 992px) {
  body {
    overflow-x: hidden;
  }
  /* 底部 */
  .footer-nav ul li,
  .footer-cw {
    font-size: 13px;
  }
  .title h2 {
    font-size: 24px;
  }
}