.details .article h2 {
  font-size: 24px;
  font-weight: 400;
  letter-spacing: 0px;
  line-height: 26px;
  color: #222222;
  text-align: center;
  padding-bottom: 34px;
}
.details .article h4 {
  font-size: 21px;
  font-weight: 400;
  letter-spacing: 0px;
  line-height: 26px;
  color: #222222;
  text-align: center;
  padding-bottom: 34px;
}
.details .article .option {
  box-sizing: border-box;
  padding-top: 18px;
  padding-bottom: 18px;
  font-size: 14px;
  line-height: 25px;
  color: #999999;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  border-top: 1px solid #dddddd;
  border-bottom: 1px solid #dddddd;
}
@media (max-width: 1000px) {
  .details .article .option {
    flex-direction: column;
  }
}
.details .article .option .option_right {
  display: flex;
}
@media (max-width: 1000px) {
  .details .article .option .option_right {
    flex-direction: column;
  }
  .details .article .option .option_right .dw {
    padding: 25px 0;
  }
}
.details .article .option .info {
  flex: 1;
}
.details .article .option h4 {
  display: none;
}
.details .article .info {
  display: flex;
  align-items: center;
  line-height: 25px;
  color: #999999;
}
.details .article .info .time {
  margin-right: 50px;
}
.details .article .info > span {
  margin-left: 8px;
}
.details .article .option .dw {
  line-height: 25px;
  color: #999999;
  margin: 12px auto;
}
.details .article .option .dw span {
  margin-right: 54px;
}
.details .article .option.fixed {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 9;
  width: 100%;
  border-top: none;
  margin: 0;
  padding: 20px 10px;
  background-color: #fff;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}
.details .article .option.fixed h4 {
  display: block;
  position: absolute;
  top: 50%;
  left: 20%;
  right: 20%;
  width: 60%;
  height: 30px;
  margin-top: -15px;
  line-height: 30px;
  text-align: center;
  font-size: 18px;
  font-weight: bold;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.details .article .option.fixed .info {
  display: none;
}
.details .article .option.fixed .jfontsize {
  float: none;
  padding: 0;
}
.details .jfontsize {
  /* margin-right: 54px; */
}
.details .jfontsize a {
  float: left;
  box-sizing: content-box;
  display: block;
  width: 24px;
  height: 24px;
  border: 1px solid #ddd;
  margin: 12px 5px;
  background-color: #fff;
  -webkit-border-radius: 3px;
  border-radius: 3px;
}
.details .jfontsize a i {
  display: block;
  width: 24px;
  height: 24px;
  line-height: 24px;
  background-image: url(../image/d_fonts.png);
  background-repeat: no-repeat;
}
.details #jfontsize-p2 i {
  background-position: 0 0;
}
.details #jfontsize-m2 i {
  background-position: -24px 0;
}
.details #jfontsize-d2 i {
  background-position: -48px 0;
}
.details #jfontsize-p2:hover i {
  background-position: 0 -24px;
}
.details #jfontsize-m2:hover i {
  background-position: -24px -24px;
}
.details #jfontsize-d2:hover i {
  background-position: -48px -24px;
}
.details .icon-clock {
  display: inline-block;
  width: 22px;
  height: 22px;
  background: url(../image/d_icon.png) no-repeat;
  background-position: -129px 0;
}
.details .icon-eye {
  display: inline-block;
  width: 24px;
  height: 22px;
  background: url(../image/d_icon.png) no-repeat;
  background-position: -94px 0;
}
.banner {
  position: relative;
}
.banner .banner_img img {
  width: 100%;
  max-height: 550px;
}
.banner .banner_title {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  -o-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  text-align: center;
}
.banner .banner_title .en {
  font-size: 60px;
  font-weight: 500;
  color: #ffffff;
  margin-bottom: 10px;
}
@media (max-width: 600px) {
  .banner .banner_title .en {
    font-size: 20px;
  }
}
.banner .banner_title .cn {
  font-size: 26px;
  font-weight: 500;
  color: #ffffff;
}
@media (max-width: 600px) {
  .banner .banner_title .cn {
    font-size: 20px;
  }
}
.content {
  background-color: #f7f7f7;
}
.content .details {
  background-color: #fff;
}
.article_body {
  border-bottom: 1px solid #dddddd;
  font-size: 16px;
  font-weight: normal;
  letter-spacing: 0px;
  line-height: 26px;
  color: #666666;
  padding: 30px 15px;
}
.article_body p {
  font-size: 18px;
  /* text-indent: 2em; */ 
  line-height: 34px;
  margin-bottom: 20px;
}
.article_body .img_box {
  text-align: center;
  margin-top: 30px;
  margin-bottom: 30px;
}
.article_body img {
  max-width: 100%;
  display: block;
  margin: 0 auto;
}
.page {
  display: flex;
  justify-content: space-between;
  align-items: center;
  line-height: 18px;
}
.page .d_prev {
  padding-left: 30px;
}
.page .d_prev::before {
  left: 0;
  top: 0;
}
.page .d_next {
  padding-right: 30px;
}
.page .d_next::before {
  right: 0;
  top: 0;
  transform: rotate(180deg);
}
.page .d_prev,
.page .d_next {
  color: #999999;
  font-size: 16px;
  position: relative;
}
.page .d_prev::before,
.page .d_next::before {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: url(../image/d_left.png) no-repeat center #f3f3f3;
}
.page .d_back {
  font-size: 16px;
  color: #007970;
  padding-left: 28px;
  position: relative;
}
.page .d_back::before {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 18px;
  background: url(../image/d_back.png) no-repeat center;
}
.article-option {
  display: flex;
}
.article-option span {
  display: inline-block;
  margin: 12px 10px;
}
.article-option .share a {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 100px;
  background-image: url(../image/share_i.png);
  transition: background-position .3s;
}

.article-option .share a.bds_weixin {
  background-position: 0 0;
}

.article-option .share a.bds_tsina {
  background-position: -40px 0;
}

.article-option .share a.bds_sqq {
  background-position: -80px 0;
}

.article-option .share a.bds_qzone {
  background-position: -120px 0;
}

.article-option .share a.bds_weixin:hover {
  background-position: 0 -40px;
}

.article-option .share a.bds_tsina:hover {
  background-position: -40px -40px;
}

.article-option .share a.bds_sqq:hover {
  background-position: -80px -40px;
}

.article-option .share a.bds_qzone:hover {
  background-position: -120px -40px;
}