#app {
  min-width: 1400px;
  margin: 0 auto;
  box-sizing: border-box;
  font-size: 14px;
  color: #000;
}
#top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  z-index: 999;
  background: #fff;
}
#top-nav .wrap {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#top-nav .wrap ul {
  display: flex;
  align-items: center;
  height: 100%;
}
#top-nav .wrap ul li {
  position: relative;
  margin-left: 32px;
}
#top-nav .wrap ul li a {
  font-weight: 500;
  font-size: 24px;
  color: #000;
}
#top-nav .wrap ul li::after {
  position: absolute;
  left: 50%;
  bottom: -5px;
  width: 0;
  border-bottom: 2px solid #000;
  content: '';
  transform: translateX(-50%);
  transition: width 0.2s;
}
#top-nav .wrap ul li:hover::after {
  width: 100%;
}
#banner {
  height: 600px;
  background: url(../images/banner.png) no-repeat center;
}
.block-wrap {
  padding: 55px 0 70px;
  background: #f9f9f9;
}
.block-wrap.block-blue {
  background: #ecf3f9;
}
.block-wrap .block-title {
  height: 157px;
  padding-top: 21px;
  margin-bottom: 60px;
  background: url(../images/title_bg.png) no-repeat 314px 0;
  text-align: center;
}
.block-wrap .block-title b {
  font-size: 48px;
  line-height: 1;
}
.block-wrap .block-title p {
  font-size: 24px;
  line-height: 1;
  margin-top: 16px;
}
.tab1 {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 55px;
}
.tab1 li {
  position: relative;
  width: 292px;
  height: 50px;
  border: 1px solid #ccc;
  margin: 0 18px;
  font-size: 22px;
  color: #999;
  text-align: center;
  line-height: 50px;
  cursor: pointer;
}
.tab1 li.active {
  background: #0086ff;
  border: 1px solid #0086ff;
  color: #fff;
}
.tab1 li.active::after {
  position: absolute;
  left: 50%;
  bottom: -24px;
  width: 0;
  height: 0;
  border: 12px solid transparent;
  border-top: 12px solid #0086ff;
  content: '';
  transform: translateX(-50%);
}
.tab-content1 {
  position: relative;
  min-height: 230px;
}
.tab-content1 li {
  display: none;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
}
.tab-content1 li.avtive {
  display: block;
}
.tab-content1 li .flex-wrap {
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.tab-content1 li .flex-wrap > div {
  width: 790px;
}
.tab-content1 li .flex-wrap > div p {
  margin-top: 3px;
  color: #666;
  line-height: 1.5em;
}
.tab-content1 li .flex-wrap > div p:first-child {
  margin-top: 0;
  font-size: 18px;
  color: #000;
  font-weight: bold;
}
.tab-content1 li .flex-wrap > div p i {
  font-size: 18px;
  font-weight: bold;
}
.chanpin {
  display: flex;
  justify-content: space-between;
}
.chanpin .chanpin-item {
  width: 589px;
  height: 541px;
  padding: 14px 12px 0;
  background: #fff;
  box-shadow: rgba(0, 0, 0, 0.1) 0px 1px 3px 0px, rgba(0, 0, 0, 0.06) 0px 1px 2px 0px;
}
.chanpin .chanpin-item > h3 {
  font-size: 22px;
  text-align: center;
}
.chanpin .chanpin-item > p {
  font-size: 16px;
  color: #666;
  text-align: center;
}
.chanpin .chanpin-item .text {
  margin-top: 12px;
}
.chanpin .chanpin-item .text p {
  color: #555;
  line-height: 1.5em;
  margin-bottom: 4px;
}
.chanpin .chanpin-box {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
}
.chanpin .chanpin-box .chanpin-sub-item {
  position: relative;
  width: 269px;
}
.chanpin .chanpin-box .chanpin-sub-item:last-child:after {
  position: absolute;
  left: -14px;
  top: 0;
  width: 0;
  height: 100%;
  border-left: 1px solid #ddd;
  content: '';
}
.chanpin .chanpin-box .chanpin-photo p {
  width: 100%;
  height: 33px;
  font-size: 18px;
  color: #fff;
  text-align: center;
  line-height: 33px;
  background: linear-gradient(to right, #0086ff, #003ffe);
}
.video {
  width: 979px;
  margin: 0 auto;
}
.video .video-box {
  position: relative;
  height: 550px;
  margin-bottom: 10px;
}
.video .video-box video {
  width: 979px;
  height: 550px;
}
.video .video-box .play-box {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2;
}
.video .video-box .play-box i {
  display: block;
  width: 231px;
  height: 60px;
  cursor: pointer;
  background: url(../images/play.png) no-repeat center;
}
.video .tab {
  display: flex;
  justify-content: space-between;
}
.video .tab li {
  position: relative;
  width: 132px;
  height: 74px;
  overflow: hidden;
  cursor: pointer;
}
.video .tab li img {
  width: 105%;
}
.video .tab li::after {
  box-sizing: border-box;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  border: 2px solid;
  border-image: linear-gradient(to right, transparent, transparent) 1;
  content: '';
  z-index: 2;
}
.video .tab li.active::after {
  border-image: linear-gradient(to right, #0086ff, #0e49fe) 1;
}
.doc {
  display: flex;
  justify-content: space-around;
}
.doc .doc-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.doc .doc-item > div {
  width: 345px;
  margin-left: 16px;
}
.doc .doc-item > div h3 {
  font-size: 18px;
  margin-bottom: 5px;
}
.doc .doc-item > div p {
  color: #555;
  line-height: 1.4em;
}
.doc .doc-item > div a {
  display: block;
  width: 112px;
  height: 22px;
  background: url(../images/btn.png) no-repeat center;
  margin-top: 20px;
}
#about {
  padding: 70px 0;
  color: #fff;
  background: #001860;
}
#about h3 {
  position: relative;
  font-size: 30px;
  text-align: center;
  margin-bottom: 55px;
}
#about h3::after {
  position: absolute;
  left: 50%;
  bottom: -20px;
  transform: translateX(-50%);
  width: 55px;
  height: 3px;
  background: #fff;
  content: '';
}
#about .about-content {
  display: flex;
  justify-content: space-between;
}
#about .about-content .about-text {
  width: 995px;
}
#about .about-content .about-text p {
  font-size: 16px;
  color: #fff;
  line-height: 1.5em;
  margin-bottom: 6px;
}
#about .about-content .about-text p:last-child {
  margin-bottom: 0;
}
#about .about-content .about-text a {
  color: #fff;
}
#about .about-content .about-text a:hover {
  text-decoration: underline;
}
#about .about-content .qr img {
  width: 138px;
}
#about .about-content .qr p {
  font-size: 16px;
  text-align: center;
  margin-top: 5px;
}