.topNav {
  height: 72px;
  background-color: #fff;
}
.news_image {
  display: block;
  margin: auto;
  width: 100%;
  margin-bottom: 105px;
}
.news_title {
  width: 666px;
  margin: 0 auto;
  background: url(../img/news/title.png) no-repeat center center;
  text-align: center;
  font-size: 30px;
}
.news_attach {
  font-size: 15px;
  line-height: 65px;
  text-align: center;
  color: #656060;
  margin-bottom: 80px;
}

.swiper-container {
  width: 1400px;
  margin: 0 auto 100px;
  height: 304px;
}
.news_pictures {
  display: flex;
  justify-content: space-between;
  margin-bottom: 48px;
}
.news_pictures div {
  width: 318px;
  padding: 13px 12px 5px 12px;
  background: url(../img/news/frame.png) no-repeat;
  background-size: 100% 100%;
  box-sizing: border-box;
  text-align: center;
  height: 254px;
}
.news_pictures p {
  font-size: 18px;
  line-height: 55px;
  color: #656060;
  text-align: center;
}
.news_nav {
  width: 520px;
  display: flex;
  justify-content: space-between;
  margin: 0 auto 45px;
}
.news_nav p {
  font-size: 19px;
  line-height: 55px;
  width: 160px;
  text-align: center;
  border: 2px solid #3a5ef8;
}
.nav_content,.nav_content_box {
  display: none;
}

.nav_content > div {
  width: 1404px;
  box-sizing: border-box;
  min-height: 212px;
  border: 2px solid #f7f7f7;
  margin: 0 auto 25px;
  padding-left: 332px;
  padding-right: 13px;
}
.nav_content > div:hover {
  border: 2px solid #3a5ef8;
}
.nav_content > div > h5 {
  font-size: 18px;
  line-height: 57px;
  font-weight: normal;
}
.nav_content > div > h6 {
  font-size: 15px;
  font-weight: normal;
  line-height: 24px;
  margin-bottom: 20px;
  color: #757575;
}
.nav_content > div > div {
  height: 41px;
  padding-bottom: 6px;
}
.nav_content > div > div > p:first-child {
  font-size: 14px;
  line-height: 33px;
  float: left;
  color: #757575;
}
.nav_content > div > div > p:last-child {
  font-size: 12px;
  line-height: 33px;
  border: 1px solid #3a5ef8;
  background: url(../img/news/detail.png) no-repeat;
  float: right;
  width: 105px;
  box-sizing: border-box;
  letter-spacing: 1px;
  background-position: 74px center;
  padding-left: 15px;
}
.nav_on {
  color: white;
  background-color: #3a5ef8;
}
.content_on ,.content_on_box {
  display: block;
}