.about_us .l,
.about_us .r {
  width: 45%;
}

.about_us_box {
  padding: 1rem 0;
  box-sizing: border-box;
}

.about_us .r img {
  display: block;
  width: 100%;
}

.bk_tit {
  position: relative;
  margin: 0 0 .25rem 0;
}

.bk_tit h4 {
  position: absolute;
  left: 0;
  top: 0;
}

.bk_tit h5 {
  font-family: YouSheBiaoTiHei, YouSheBiaoTiHei;
  font-weight: 400;
  color: #E0E0E0;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.about_us .l span,
.about_us .l a {
  line-height: .45rem;
}

.about_us .l a {
  display: block;
  padding: .1875rem 0;
  width: 30%;
  box-sizing: border-box;
  border: 2px solid #333333;
  text-align: center;
}

.about_us .l a:hover {
  transform: scale(0.9);
  transition: all 0.6s;
}

.about_us .l {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.rail_box a {
  padding: .75rem 10%;
  box-sizing: border-box;
  background-color: #333333;
  color: #fff !important;
}

.rail_box a .l h4 {
  margin: 0 0 .25rem 0;
}

.rail_box a .r i {
  font-size: 1rem;
}

.ad_box {
  padding: 1rem 0;
  box-sizing: border-box;
  background-color: #333333;
  background-image: url(../image/首页/产品优势bg.png);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.ad_box .bk_tit h4 {
  color: #fff;
}

.ad_box .bk_tit h5 {
  color: #666667;
}

.ad_box .bk_tit {
  margin: 0 0 .75rem 0;
}

.content_item .l {
  position: absolute;
  left: 0;
  top: 0;
  padding: .625rem;
  box-sizing: border-box;
  background-color: rgba(255, 255, 255, 0.8);
  width: 25%;
  height: 100%;
}

.content_box {
  line-height: .45rem;
}

.content_item .r {
  width: 100%;
}

.content_item .r img {
  display: block;
  width: 100%;
}

.content_item {
  position: relative;
}

.ad ul li {
  padding: .375rem 0;
  box-sizing: border-box;
  width: 25%;
  text-align: center;
  background-color: #fff;
  cursor: pointer;
}

.content_item {
  display: none;
}

.item_act {
  display: block;
}

.ad ul .four_act {
  color: #fff;
  background-color: #5c5c5c;
}

.ad ul li:hover {
  color: #fff;
  background-color: #5c5c5c;
  transition: all 0.6s;
}

.inapp_tit .bk_tit {
  margin: .75rem 0;
}

.inapp {
  position: relative;
}

.inapp .l {
  position: absolute;
  left: 0;
  top: 0;
  padding: 1.25rem 0;
  box-sizing: border-box;
  width: 25%;
  background-color: rgba(255, 255, 255, 0.8);
  height: 100%;
  z-index: 1;
}

.hyyy_bg {
  display: block;
  width: 100%;
}

.inapp .r {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 1.25rem 0;
  box-sizing: border-box;
  height: 100%;
}

/* .inapp {
  background-image: url(../image/首页/行业应用bg.png);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: 100% 100%;
} */

.inapp .l ul li {
  padding: .375rem 0;
  box-sizing: border-box;
  text-align: center;
  cursor: pointer;
}

.inapp .l ul li:hover {
  background-color: #575858;
  color: #fff;
  transition: all 0.6s;
}

.inapp .l ul .tf_act {
  background-color: #575858;
  color: #fff;
}

.inapp .l a {
  display: block;
  padding: .1875rem 0;
  box-sizing: border-box;
  margin: 1.25rem auto 0 auto;
  border: 2px solid #333333;
  width: 50%;
  text-align: center;
}

.inapp .l a:hover {
  transform: scale(0.9);
  transition: all 0.6s;
}

.inapp .r .inapp_content {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.inapp .r .inapp_content .inapp_item {
  position: relative;
  /* padding: .75rem 1rem;
  box-sizing: border-box; */
  /* width: 60%; */
  height: 100%;
  background-color: rgba(255, 255, 255, 0.8);
}

.hyyy_text {
  position: absolute;
  top: 50%;
  left: 60%;
  transform: translate(-50%, -50%);
  padding: .75rem 1rem;
  box-sizing: border-box;
  width: 50%;
  height: 80%;
  background-color: rgba(255, 255, 255, 0.8);
}

.inapp {
  height: 100%;
}

.inapp .r h4 {
  margin: 0 0 .5rem 0;
}

.inapp_box {
  line-height: .45rem;
}

.inapp_item {
  display: none;
}

.item_act {
  display: block;
}

.news_box {
  padding: 1rem 0;
  box-sizing: border-box;
}

.news .bk_tit {
  margin: 0 0 .75rem 0;
}

.line_box .l,
.line_box .r {
  width: 50%;
}

.line_box .l img {
  display: block;
  width: 100%;
}

.line_box .l .text_box {
  padding: .375rem .4375rem;
  box-sizing: border-box;
  background-color: #fff;
  line-height: .45rem;
}

.line_box .l .text_box .tit {
  margin: 0 0 .1875rem 0;
}

.news_box {
  background-color: #f7f7f7;
}

.line_box .r {
  line-height: .45rem;
  background-color: #fff;
}

.line_box .r ul li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .3125rem 0;
  box-sizing: border-box;
}

.line_box .r ul {
  padding: 0 .625rem !important;
  box-sizing: border-box;
}

.line_box .r ul li a .time_box {
  width: 20%;
  text-align: center;
}

.line_box .r ul li a .text_box {
  width: 75%;
}

.line_box .r ul li {
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.line_box .r ul li:last-child {
  border: none;
}

.more {
  display: block;
  padding: .1875rem 0;
  box-sizing: border-box;
  margin: 1rem auto 0 auto;
  background: #333333;
  border-radius: 5px 5px 5px 5px;
  color: #fff !important;
  width: 15%;
  text-align: center;
}

.more:hover {
  transform: scale(0.9);
  transition: all 0.6s;
}

@media screen and (max-width: 1680px) {}

@media screen and (max-width: 1600px) {}

@media screen and (max-width: 1440px) {}

@media screen and (max-width: 1366px) {}

@media screen and (max-width: 1280px) {}

@media screen and (max-width: 1024px) {}

@media screen and (max-width: 980px) {

  .about_us .l,
  .about_us .r {
    width: 100%;
  }

  .about_us {
    flex-wrap: wrap;
  }

  .about_us .l span,
  .about_us .l a {
    line-height: 1.5;
  }

  .about_us .r {
    margin: 15px 0 0 0;
  }

  .about_us .l span {
    margin: 15px 0;
  }

  .rail_box a .l h4 {
    margin: 0 0 15px 0;
  }

  .rail_box a {
    line-height: 1.5;
  }

  .content_item .l {
    position: relative;
    width: 100%;
    height: auto;
  }

  .content_item .r {
    display: none;
  }

  .content_item {
    flex-wrap: wrap;
  }

  .content_box {
    line-height: 1.5;
  }

  .ad ul li {
    width: 50%;
  }

  .ad ul {
    flex-wrap: wrap;
  }

  .inapp_box {
    line-height: 1.5;
  }

  .inapp .l a {
    width: 95%;
  }

  .inapp .r .inapp_content .inapp_item {
    width: 70%;
  }

  .line_box .l,
  .line_box .r {
    width: 100%;
  }

  .line_box {
    flex-wrap: wrap;
  }

  .line_box .l .text_box,
  .line_box .r ul li a {
    line-height: 1.5;
  }

  .more {
    padding: 15px 0;
    width: 35%;
  }

  .line_box .l .text_box .tit h4,
  .line_box .l .text_box .tit p {
    width: 100%;
  }

  .line_box .l .text_box .tit {
    flex-wrap: wrap;
  }

  .line_box .r ul li a .time_box {
    width: 35%;
  }

  .line_box .r ul li a .text_box {
    width: 65%;
  }

  .bk_tit h4 {
    position: relative;
    margin: 0 0 10px 0;
  }

  .inapp .l {
    position: relative;
    width: 100%;
    height: auto;
  }

  .hyyy_text {
    position: absolute;
    top: 0%;
    left: 0%;
    transform: translate(0%, 0%);
  }

  .inapp {
    flex-wrap: wrap;
  }

  .inapp .r .inapp_content .inapp_item {
    width: 100%;
  }

  .hyyy_text {
    width: 100%;
    height: 100%;
  }
}

@media screen and (max-width: 768px) {}

@media screen and (max-width: 640px) {}

@media screen and (max-width: 375px) {}