﻿.introduction_box{
  width: 100%;
  margin: 0 auto;
  background-color: #191818;
  padding-top: 44px;
  display: block !important
}
.introlduction_middle{
  width: 1200px;
  margin: 0 auto;
  color: #888;
  font-size: 12px;
}
.introlduction_title{
  font-size: 15px;
  color: #8a8a8a;
  margin-bottom: 10px;
}
.introlduction_content{
  line-height: 16px;
  border-bottom: 1px solid #868686;
  padding-bottom: 10px;
}
.f_tab_title{
  padding-top: 24px;
}
.footer_box{
  height: 145px;
}