.banner {
  position: relative;
}
.banner img {
  width: 100%;
}
.banner .text {
  position: absolute;
  width: 100%;
  top: 46%;
  color: #fff;
}
.banner .text h2 {
  text-align: center;
  font-size: 2.3rem;
  font-weight: bold;
  letter-spacing: 1px;
}
.banner .text p {
  text-align: center;
  font-size: 1.2rem;
  letter-spacing: 1px;
  margin-top: 0.6rem;
}
.sub-nav {
  height: 4rem;
  border-bottom: 1px solid #ddd;
  overflow: hidden;
  position: relative;
  top: 0;
  background: #fff;
  width: 100%;
  border-top: 1px solid #ddd;
  z-index: 100;
}
.sub-nav .content .left {
  float: left;
}
.sub-nav .content .left h6 {
  line-height: 4rem;
  font-size: 1.3rem;
  font-weight: bold;
}
.sub-nav .content .left h6 span {
  font-size: 1rem;
  color: #9f223d;
  margin-left: 1rem;
  position: relative;
  top: -0.1rem;
}
.sub-nav .content .right {
  float: right;
}
.sub-nav .content .right > ul li {
  float: left;
  width: 4.6rem;
  height: 4rem;
  text-align: center;
  position: relative;
}
.sub-nav .content .right > ul li a {
  line-height: 4rem;
  font-size: 0.8rem;
  display: block;
}
.sub-nav .content .right > ul li:not(:last-child) {
  margin-right: 2rem;
}
.sub-nav .content .right > ul li:before {
  content: '';
  width: 0;
  height: 3px;
  background: #9f223d;
  position: absolute;
  bottom: 0;
  left: 0;
}
.sub-nav .content .right > ul li.active:before {
  width: 100%;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.sub-nav .content .right > ul li.active a {
  color: #9f223d;
}
.sub-nav .content .right > ul li:hover:before {
  width: 100%;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.sub-nav .content .right > ul li:hover a {
  color: #9f223d;
}
.star-product {
  background: url(../img/product/product_bg.png) no-repeat right top;
}
.star-product .con {
  padding: 4rem 0;
}
.star-product .con h3 {
  font-size: 1.2rem;
  letter-spacing: 1px;
}
.star-product .con h2 {
  font-size: 2.3rem;
  font-weight: bold;
  letter-spacing: 1px;
}
.star-product .con h2 span {
  color: #9f223d;
}
.star-product .con p {
  font-size: 1.2rem;
  margin-top: 3rem;
  position: relative;
  letter-spacing: 1px;
}
.star-product .con p:before {
  content: '';
  width: 27px;
  height: 2px;
  background: #9f223d;
  position: absolute;
  top: -0.4rem;
  left: 0;
}
.about-video {
  padding: 7rem 0;
  background: url(../img/about/brief/video_bg.jpg) no-repeat;
  background-size: cover;
}
.about-video .con {
  color: #fff;
}
.about-video .con .text p {
  width: 100%;
  font-family: "宋体";
}
.about-video .con .text p span{
  font-family: "宋体";
}
.about-video .con .text p strong {
  font-size: 1rem;
  font-weight: bold;
  font-family: "宋体";
}
.about-video .con .text p {
  font-size: 0.8rem;
  width: 70%;
  text-align: justify;
  line-height: 1.8;
}
.about-video .con .text p:not(:first-child) {
  margin-top: 1.5rem;
}
.about-video .con .text p:nth-child(2) {
  margin-bottom: 2.5rem;
  margin-top: 0.4rem;
}
.about-video .con .btn {
  margin-top: 3rem;
}
.about-video .con .btn .play {
  width: 3.3rem;
  height: 3.3rem;
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  text-align: center;
  float: left;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.about-video .con .btn .play span {
  color: #9f223d;
  font-size: 0.8rem;
  line-height: 3.3rem;
  position: relative;
  left: 2px;
}
.about-video .con .btn .play:hover {
  background: none;
  border: 1px solid #fff;
}
.about-video .con .btn .play:hover span {
  color: #fff;
}
.about-video .con .btn .title {
  float: left;
  line-height: 3.3rem;
  margin-left: 1rem;
  font-size: 0.9rem;
  font-family: "宋体";
}
.about-advantage .con {
  border-left: 1px solid #eee;
}
.about-advantage .con .left {
  float: left;
  width: 20%;
  height: 100%;
  padding: 4rem 0;
}
.about-advantage .con .left h3 {
  font-size: 1.4rem;
}
.about-advantage .con .left h2 {
  font-size: 2.3rem;
  font-weight: bold;
}
.about-advantage .con .right {
  float: left;
  width: 80%;
  border-left: 1px solid #eee;
}
.about-advantage .con .right > ul li {
  float: left;
  width: 25%;
  padding: 4rem 1.2rem;
  position: relative;
}
.about-advantage .con .right > ul li h2 {
  font-size: 3rem;
  color: #9f223d;
  font-weight: bold;
  display:inline-block;
}
.about-advantage .con .right > ul li p {
  font-size: 0.7rem;
  -webkit-line-clamp: 3;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  text-overflow: ellipsis;
  overflow: hidden;
  line-height: 1.5;
  height: 4.5em;
}
.about-advantage .con .right > ul li:nth-child(odd) {
  opacity: 0;
}
.about-advantage .con .right > ul li:nth-child(even) {
  border-left: 1px solid #eee;
  border-right: 1px solid #eee;
}
.about-advantage .con .right > ul li:nth-child(even):before {
  content: '';
  width: 2px;
  height: 3.5rem;
  background: #9f223d;
  position: absolute;
  top: 39%;
  left: 0;
}
.about-advantage .con .right > ul li.add h2 {
  position: relative;
  display: inline-block;
}
.about-advantage .con .right > ul li.add h2:before {
  content: '+';
  position: absolute;
  font-size: 2rem;
  color: #9f223d;
  top: -0.4rem;
  right: -1.4rem;
   display: none;
}
.about-advantage .con .right > ul li:last-child.add h2:nth-child(1):before {
  content: '';
  font-size: 3rem;
   display: none;
}
.about-advantage .con .right > ul li:last-child.add h2:nth-child(2):before {
  content: '°';
  font-size: 3rem;
  display: none;
}
.history-con .con {
  padding-top: 4rem;
}
.history-con .con > ul {
  height: auto;
  display: flex;
  overflow: hidden;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.history-con .con > ul > li {
  float: left;
  width: 18%;
  float: none;
  width: 100%;
}
.history-con .con > ul > li .top {
  text-align: center;
  border-bottom: 1px solid #eee;
  position: relative;
}
.history-con .con > ul > li .top h2 {
  font-size: 1.2rem;
  color: #9f223d;
}
.history-con .con > ul > li .top .year {
  width: 14rem;
  height: 3rem;
  border-radius: 150px;
  border: 1px solid #999;
  font-size: 1rem;
  color: #000;
  line-height: 3rem;
  margin: 1rem auto;
  background: #fff;
}
.history-con .con > ul > li .bottom {
  display: none;
}
.history-con .con > ul > li .text p {
  font-size: 0.7rem;
  color: #333;
  margin-top: 1.5rem;
}
.history-con .con > ul > li:not(:last-child) {
  margin-right: 2.5%;
}
.history-con .con > ul > li:not(:last-child) .top .year:before {
  content: '';
  width: 100%;
  height: 1px;
  border-bottom: 1px dotted #999;
  position: absolute;
  top: 66%;
  left: 50%;
  z-index: -1;
}
.history-con .con .open-more {
  width: 7.9rem;
  height: 2.5rem;
  border-radius: 26px;
  background: #9f223d;
  font-size: 0.8rem;
  color: #fff;
  text-align: center;
  line-height: 2.5rem;
  cursor: pointer;
  margin: 3rem auto;
}
#videoPopup {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  z-index: 1000;
  background-color: rgba(0, 0, 0, 0.4);
  display: none;
}
#videoPopup .video-box {
  width: 61%;
  position: absolute;
  left: 19.5%;
  top: 18%;
}
#videoPopup .video-box .left {
  float: left;
  width: 75%;
  position: relative;
}
#videoPopup .video-box video {
  width: 100%;

}
#videoPopup .video-box .left video {
  width: 100%;
  height: 25rem;
}
#videoPopup .video-box .right {
  float: left;
  width: 25%;
  height: 25rem;
  background: #fff;
  padding: 0 1rem;
}
#videoPopup .video-box .right h2 {
  height: 4rem;
  line-height: 4rem;
  font-size: 1.3rem;
  font-weight: bold;
  color: #9f223d;
}
#videoPopup .video-box .right ul {
  height: 21rem;
  overflow: auto;
}
#videoPopup .video-box .right ul li {
  width: 93%;
  overflow: auto;
  position: relative;
}
#videoPopup .video-box .right ul li .top {
  height: 0;
  padding-bottom: 57%;
  overflow: hidden;
  position: relative;
}
#videoPopup .video-box .right ul li .top img {
  width: 100%;
}
#videoPopup .video-box .right ul li .top .mask {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: rgba(0, 0, 0, 0.5);
}
#videoPopup .video-box .right ul li p {
  font-size: 0.8rem;
  font-weight: bold;
  margin: 0.5rem 0 0.8rem;
}
#videoPopup .video-box .right ul li .play {
  position: absolute;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: #9f223d;
  cursor: pointer;
  text-align: center;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
}
#videoPopup .video-box .right ul li .play span {
  color: #fff;
  font-size: 0.8rem;
  line-height: 2rem;
  position: relative;
  left: 2px;
}
#videoPopup .video-box .right ul li .play:hover {
  background: #fff;
}
#videoPopup .video-box .right ul li .play:hover span {
  color: #9f223d;
}
#videoPopup .video-box .close {
  position: absolute;
  right: 0.3rem;
  top: 0.6rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: none;
  cursor: pointer;
  text-align: center;
}
#videoPopup .video-box .close span {
  font-size: 0.8rem;
  line-height: 2rem;
  color: #999;
}
html,
body {
  scrollbar-highlight-color: #f1f1f1;
  scrollbar-face-color: #fff;
  scrollbar-darkshadow-color: #fff;
  scrollbar-shadow-color: #fff;
  scrollbar-arrow-color: #f1f1f1;
}
#scroll-1::-webkit-scrollbar {
  width: 4px;
}
#scroll-1::-webkit-scrollbar-track-piece {
  background: #f1f1f1;
}
#scroll-1::-webkit-scrollbar-thumb {
  background: #9f223d;
  border-radius: 4px;
}
@media screen and (max-width: 1024px) {
  .banner {
    margin-top: 5.5rem;
  }
  .banner .text {
    top: 38%;
  }
  .history-con .con > ul > li > ul li p {
    width: 69%;
  }
  .history-con .con > ul > li > ul li h3 {
    width: 31%;
  }
  #videoPopup .video-box {
    width: 70%;
    left: 15%;
  }
}
@media screen and (max-width: 768px) {
  .banner .text {
    top: 30%;
  }
  .banner .text h2 {
    font-size: 18px;
  }
  .banner .text p {
    font-size: 13px;
    margin-top: 0.2rem;
  }
  .sub-nav .content .left {
    display: none;
  }
  .sub-nav .content .right {
    width: 100%;
  }
  .sub-nav .content .right > ul li {
    width: 20%;
  }
  .sub-nav .content .right > ul li a {
    font-size: 12px;
  }
  .sub-nav .content .right > ul li:not(:last-child) {
    margin-right: 0;
  }
  .star-product {
    background: url(../img/product/product_bg.png) no-repeat 26px -11px;
  }
  .star-product .con {
    padding: 3.5rem 10px;
  }
  .star-product .con h2 {
    font-size: 20px;
  }
  .star-product .con p {
    font-size: 14px;
    width: 72%;
  }
  .about-video {
    padding: 5rem 0;
  }
  .about-video .con .text p strong {
    font-size: 14px;
  }
  .about-video .con .text p {
    font-size: 13px;
    width: 100%;
  }
  .about-video .con .btn .title {
    font-size: 12px;
  }
  .about-advantage {
    padding-bottom: 3rem;
  }
  .about-advantage .con .left {
    width: 100%;
    padding: 2rem 0 1.5rem;
  }
  .about-advantage .con .left h3 {
    font-size: 12px;
  }
  .about-advantage .con .left h2 {
    font-size: 20px;
  }
  .about-advantage .con .right {
    width: 100%;
  }
  .about-advantage .con .right > ul li {
    width: 50%;
    padding: 1rem 1.2rem;
  }
  .about-advantage .con .right > ul li h2 {
    font-size: 22px;
  }
  .about-advantage .con .right > ul li p {
    font-size: 13px;
  }
  .about-advantage .con .right > ul li:nth-child(odd) {
    display: none;
  }
  .history_area {
    height: 38rem;
  }
  .history_area .timeline {
    transform: scale(0.56);
    -webkit-transform: scale(0.56);
    -moz-transform: scale(0.56);
    -ms-transform: scale(0.56);
    margin-top: -13.5rem;
  }
  #step2 .step2_title span {
    font-size: 26px;
  }
  #step2 .detail_box .details .year {
    font-size: 20px;
    padding: 0 28px;
    height: 36px;
    line-height: 36px;
  }
  #step2 .detail_box .details .title {
    font-size: 28px;
  }
  #step2 .detail_box .details .subtitle {
    font-size: 20px;
    line-height: 1.5;
  }
  .history-con .con {
    padding: 0;
  }
  .history-con .con > ul {
    height: auto;
    display: block;
  }
  .history-con .con > ul > li {
    width: 100%;
    position: relative;
  }
  .history-con .con > ul > li:not(:last-child) {
    margin-right: 0;
  }
  .history-con .con > ul > li:not(:last-child) .top .year:before {
    display: none;
  }
  .history-con .con > ul > li .top {
    text-align: left;
    padding: 2rem;
  }
  .history-con .con > ul > li .top h2 {
    font-size: 18px;
  }
  .history-con .con > ul > li .top .year {
    margin: 0;
    border: none;
    width: auto;
    font-size: 16px;
  }
  .history-con .con > ul > li .bottom {
    display: block;
    position: absolute;
    top: 2.5rem;
    right: 2rem;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid #d8d8d8;
    text-align: center;
    transition: all 0.5s;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    -ms-transition: all 0.5s;
  }
  .history-con .con > ul > li .bottom span {
    font-size: 20px;
    color: #d8d8d8;
    line-height: 32px;
  }
  .history-con .con > ul > li .bottom.active {
    transform: rotate(180deg);
    -webkit-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
  }
  .history-con .con > ul > li .bottom.active span {
    color: #9f223d;
  }
  .history-con .con > ul > li .text {
    padding: 0 2rem 2rem;
    border-bottom: 1px solid #eee;
    background: #fbfbfb;
    display: none;
  }
  .history-con .con > ul > li .text p {
    font-size: 13px;
  }
  .history-con .con > ul > li > ul {
    padding: 0 2rem 2rem;
    border-bottom: 1px solid #eee;
    background: #fbfbfb;
    display: none;
  }
  .history-con .con > ul > li > ul > li h3 {
    width: 28%;
    font-size: 12px;
    font-weight: bold;
    position: relative;
    top: 1px;
  }
  .history-con .con > ul > li > ul > li h3:before {
    content: '';
    width: 1px;
    height: 80%;
    background: #ccc;
    position: absolute;
    right: 12px;
    top: 10%;
  }
  .history-con .con > ul > li > ul > li p {
    width: 72%;
    font-size: 13px;
  }
  .history-con .con .open-more {
    display: none;
  }
  #videoPopup .video-box {
    top: 14%;
  }
  #videoPopup .video-box .left {
    width: 100%;
  }
  #videoPopup .video-box .left video {
    height: auto;
  }
  #videoPopup .video-box .right {
    width: 100%;
    height: 18rem;
  }
  #videoPopup .video-box .right h2 {
    font-size: 14px;
  }
  #videoPopup .video-box .right ul {
    height: 13rem;
  }
  #videoPopup .video-box .right ul li .play {
    width: 40px;
    height: 40px;
  }
  #videoPopup .video-box .right ul li .play span {
    line-height: 40px;
  }
  #videoPopup .video-box .right ul li p {
    font-size: 13px;
  }
  #videoPopup .video-box .close {
    position: fixed;
    width: 30px;
    height: 30px;
    background: rgba(0, 0, 0, 0.6);
    top: 1rem;
    right: 1rem;
  }
  #videoPopup .video-box .close span {
    font-size: 14px;
    color: #fff;
    line-height: 30px;
  }
}
/*# sourceMappingURL=about_brief.css.map */