html,
body {
  min-height: 100%;
}
body {
  overflow: -Scroll;
  overflow-x: hidden;
}
.body_bg {
  background-color: white;
}
.navbar-fixed-top {
  position: absolute !important;
}
.navbar-inverse {
  background-color: transparent !important;
  border-color: transparent !important;
}
.navbar-header span {
  line-height: 50px;
  margin-right: 50px;
  color: #2e7ddf;
  font-size: 14px;
}
.dropdown-menu {
  background-color: rgba(0, 0, 0, 0.4) !important;
}
.dropdown-menu > li > a {
  color: white !important;
}
.navbar-brand img {
  height: 100%;
}

.navbar-inverse .navbar-nav > .active > a {
  background-color: transparent !important;
  color: #2e7ddf !important;
}
.navbar-inverse .navbar-nav > li > a {
  color: white !important;
}
.nav > .dropdown > ul > li:hover a {
  color: #2e7ddf !important;
}
.dropdown-menu {
  min-width: 120px !important;
}
/*内容*/
.neirong {
  /* height: calc(100% - 500px - 170px); */
  min-height: calc(100vh - 500px - 153px);
  padding-bottom: 20px;
}
.container_header {
  padding: 30px 0;
  text-align: center;
  font-size: 30px;
}
.row {
  box-sizing: border-box;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.col-md-4 {
  text-align: center !important;
  padding: 0 10px !important;
  margin-bottom: 20px;
}
.item {
  height: 100%;
  position: relative;
  padding: 40px 0;
  border: 1px solid #f0f0f0;
}
.img {
  width: 260px;
  height: 220px;
}
.pro_title {
  font-size: 15px;
  color: #666666;
  margin-top: 20px;
}
.desc {
  margin-top: 10px;
  color: #666666;
  text-align: left;
}

/*底部*/
.footer {
  background-color: rgb(62, 67, 80);
  padding: 20px 0;
  color: whitesmoke;
}

.footer .container ul {
  margin: 0 auto;
  width: 800px;
  list-style: none;
  text-align: center;
  margin-bottom: 20px;
}
.footer .container ul li {
  color: #707070;
  float: left;
  background-color: #fff;
  border-radius: 15px;
  margin-right: 30px;
}
.footer .container ul li p {
  font-size: 14px;
  padding: 6px;
  margin-bottom: 0 !important;
}
.footer .container hr {
  clear: both;
  position: relative;
  top: 15px;
}

.hardware_img {
  height: 250px !important;
}