.s_banner {
  height: 580px;
  background-image: url("../images/about/bg.png");
  background-repeat: no-repeat;
  background-size: cover;
  min-width: 1200px;
}
.s_banner2 {
  height: 1000px;
  background-image: url("../images/about/bg2.png");
  background-repeat: no-repeat;
  background-size: cover;
  min-width: 1200px;
}
.s_banner3 {
  height: 280px;
  background-image: url("../images/about/bg3.png");
  background-size: cover;
  min-width: 1200px;
  font-size: 42px;
  font-family: MicrosoftYaHei;
  font-weight: bold;
  color: #ffffff;
  line-height: 280px;
  text-align: center;
}
.about_menu {
  width: 786px;
  margin: 0 auto 60px;
}
.about_item {
  width: 200px;
  height: 53px;
  border-radius: 27px;
  border: solid 1px #363D45;
  margin: 0  30px;
  font-size: 16px;
  color: #363D45;
  text-align: center;
  line-height: 53px;
  cursor: pointer;
}
.about_item.on {
  background-color: #008DEC;
  color: #fff;
  border-color: #008DEC;
}
.about_box {
  width: 1200px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
.about_box .ab_des_item {
  display: none;
  position: relative;
  height: 383px;
}
.about_box .ab_thumb {
  display: block;
  width: 520px;
  height: 320px;
  position: absolute;
  border: solid 2px #fff;
  left: 0;
  top: 0;
  z-index: 2;
}
.about_box .ab_b {
  float: right;
  position: relative;
  width: 750px;
  height: 370px;
  padding: 25px 0 0 51px;
  background: url("../images/about/info_bg.png") no-repeat;
  box-sizing: border-box;
}
.about_box .ab_c {
  width: 680px;
  background-color: #fff;
  padding: 38px 39px 0 60px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  height: 320px;
  margin-top: 13px;
}
.about_box .ab_c .ab_title {
  font-size: 24px;
  font-family: MicrosoftYaHei;
  color: #000;
  line-height: 36px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
}
.about_box .ab_c .ab_r {
  width: 8px;
  height: 8px;
  border-radius: 8px;
  background: linear-gradient(225deg, #0095e3 0%, #5574f1 57%, #8543ff 100%);
  margin-right: 5px;
}
.about_box .ab_c .ab_desc {
  font-size: 18px;
  font-family: MicrosoftYaHei;
  color: #666;
  line-height: 36px;
}
.s_h3 {
  font-size: 34px;
  font-family: MicrosoftYaHei;
  color: #131313;
  line-height: 45px;
  margin-bottom: 33px;
  position: relative;
  text-align: center;
}
.s_sub3 {
  font-size: 18px;
  font-family: MicrosoftYaHei;
  color: #4A4A4A;
  line-height: 24px;
  text-align: center;
  margin-bottom: 60px;
}
.s_h3_line {
  width: 80px;
  height: 1px;
  margin: 0 auto 33px;
  background: -webkit-linear-gradient(left, #007bff, #00dbff);
  /* Safari 5.1 - 6.0 */
  background: -o-linear-gradient(right, #007bff, #00dbff);
  /* Opera 11.1 - 12.0 */
  background: -moz-linear-gradient(right, #007bff, #00dbff);
  /* Firefox 3.6 - 15 */
  background: linear-gradient(to right, #007bff, #00dbff);
  /* 标准的语法（必须放在最后） */
}
.ab_line {
  width: 160px;
  height: 1100px;
  background: url("../images/about/bg4.png") no-repeat;
  margin: 85px auto 0;
}
.ab_l_item {
  width: 160px;
  height: 170px;
  position: relative;
}
.ab_l_item .ab_l_t {
  position: absolute;
  top: 20px;
}
.ab_l_item .desc {
  width: 340px;
  font-size: 18px;
  font-family: MicrosoftYaHei;
  color: #131313;
  line-height: 30px;
}
.ab_l_item .time {
  font-size: 20px;
  font-family: MicrosoftYaHei;
  line-height: 26px;
  margin-bottom: 7px;
  width: 100px;
}
.ab_l_item .time2 {
  font-size: 14px;
  font-family: MicrosoftYaHei;
  color: #363D45;
  line-height: 19px;
}
.ab_l_item .time_color1 {
  color: #079BFF;
}
.ab_l_item .time_color2 {
  color: #F56600;
}
.ab_c_i01 {
  background: url("../images/about/icon_01.png") no-repeat;
  width: 160px;
  height: 160px;
  margin: 0 auto 24px;
  display: block;
}
.ab_c_i02 {
  background: url("../images/about/icon_02.png") no-repeat;
  width: 160px;
  height: 160px;
  margin: 0 auto 24px;
  display: block;
  font-size: 24px;
  font-family: MicrosoftYaHei-Bold, MicrosoftYaHei;
  font-weight: bold;
  color: #6cb2f8;
  text-align: center;
  line-height: 160px;
}
.ab_c_i03 {
  background: url("../images/about/icon_03.png") no-repeat;
  width: 160px;
  height: 160px;
  margin: 0 auto 24px;
  display: block;
  font-size: 24px;
  font-family: MicrosoftYaHei-Bold, MicrosoftYaHei;
  font-weight: bold;
  color: #f7aa68;
  text-align: center;
  line-height: 160px;
}
.ab_c_i04 {
  background: url("../images/about/icon_04.png") no-repeat;
  width: 160px;
  height: 160px;
  margin: 0 auto 24px;
  display: block;
}
.ab_c_t {
  font-size: 24px;
  font-family: MicrosoftYaHei;
  color: #131313;
  line-height: 31px;
  text-align: center;
  margin-bottom: 16px;
}
.ab_c_email {
  font-size: 18px;
  font-family: MicrosoftYaHei;
  color: #363D45;
  line-height: 24px;
  text-align: center;
  margin-bottom: 10px;
}