.paper_box {
  margin-top: 130px;
}
.paper_box .pb_nav {
  display: flex;
  width: 100%;
  height: 72px;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
  border-bottom: 1px solid #E0DFE5;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_nav {
    margin-left: 20px;
    margin-right: 20px;
    width: auto;
    height: 48px;
    justify-content: space-between;
  }
}
.paper_box .pb_nav .pbn_left {
  display: flex;
  font-family: Source Han Sans CN;
  font-size: 14px;
  font-style: normal;
  font-weight: 400;
  line-height: 18px;
  margin-right: 970px;
}
@media screen and (max-width: 1200px) {
  .paper_box .pb_nav .pbn_left {
    margin-right: 950px;
  }
}
@media screen and (max-width: 750px) {
  .paper_box .pb_nav .pbn_left {
    margin-right: 0;
  }
}
.paper_box .pb_nav .pbn_left svg {
  margin: 0 8px;
}
.paper_box .pb_nav .pbn_left .pbnl_thr {
  color: #794EFF;
}
.paper_box .pb_nav .pbn_right {
  color: #000;
  font-family: Source Han Sans CN;
  font-size: 14px;
  font-style: normal;
  font-weight: 400;
  line-height: 18px;
  display: flex;
  align-items: center;
}
.paper_box .pb_nav .pbn_right svg {
  margin-right: 8px;
}
.paper_box .pb_con {
  margin: 80px auto;
  width: 1000px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con {
    margin-top: 32px;
    margin-bottom: 32px;
    width: 90%;
    margin-left: 20px;
    margin-right: 20px;
  }
}
.paper_box .pb_con .pbc_tit {
  padding-bottom: 40px;
  border-bottom: 1px solid #EEE;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_tit {
    padding-bottom: 32px;
  }
}
.paper_box .pb_con .pbc_tit .pbct_top {
  color: #000;
  font-family: PingFang SC;
  font-size: 32px;
  font-style: normal;
  font-weight: 500;
  line-height: 48px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_tit .pbct_top {
    font-size: 18px;
    line-height: 24px;
  }
}
.paper_box .pb_con .pbc_tit .pbct_con {
  color: #666;
  font-family: PingFang SC;
  font-size: 14px;
  font-style: normal;
  font-weight: 400;
  line-height: 20px;
  display: flex;
  margin-top: 24px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_tit .pbct_con {
    margin-top: 16px;
    justify-content: space-between;
  }
}
.paper_box .pb_con .pbc_tit .pbct_con .pbctc_left {
  margin-right: 40px;
}
.paper_box .pb_con .pbc_zy {
  margin: 40px 0 24px;
  padding: 20px;
  box-sizing: border-box;
  background: #F6F3FF;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_zy {
    margin-top: 32px;
    padding: 16px 20px;
  }
}
.paper_box .pb_con .pbc_zy .pbcz_tit {
  color: #000;
  font-family: PingFang SC;
  font-size: 20px;
  font-style: normal;
  font-weight: 500;
  line-height: 24px;
  margin-bottom: 16px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_zy .pbcz_tit {
    font-size: 16px;
    line-height: 20px;
  }
}
.paper_box .pb_con .pbc_zy .pbcz_con {
  color: #000;
  font-family: PingFang SC;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 28px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_zy .pbcz_con {
    font-size: 12px;
    line-height: 20px;
  }
}
.paper_box .pb_con .pbc_con {
  color: #000;
  font-family: PingFang SC;
  font-size: 16px;
  font-style: normal;
  font-weight: 400;
  line-height: 28px;
  margin-bottom: 24px;
}
.paper_box .pb_con .pbc_con p {
  margin-bottom: 15px;
  margin-top: 15px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_con {
    font-size: 14px;
    line-height: 24px;
  }
  .paper_box .pb_con .pbc_con p {
    margin-bottom: 10px;
    margin-top: 10px;
  }
}
.paper_box .pb_con .pbc_img {
  padding-bottom: 40px;
  box-sizing: border-box;
  border-radius: 8px;
  border-bottom: 1px solid #EEE;
}
.paper_box .pb_con .pbc_img img {
  width: 1000px;
  height: 560px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_img img {
    width: 335px;
    height: 187px;
  }
}
.paper_box .pb_con .pbc_btn {
  margin-top: 40px;
  margin-bottom: 80px;
  display: flex;
  justify-content: space-between;
  color: var(--333333, #333);
  font-family: PingFang SC;
  font-size: 14px;
  font-style: normal;
  font-weight: 400;
  line-height: 18px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_con .pbc_btn {
    margin-bottom: 32px;
  }
}
.paper_box .pb_con .pbc_btn .pbcb_left svg {
  margin-right: 12px;
}
.paper_box .pb_con .pbc_btn .pbcb_right svg {
  margin-left: 12px;
}
.paper_box .pb_con .pbc_btn .pbcb_box {
  background: #F6F7F8;
  width: 92px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.paper_box .pb_bom {
  width: 100%;
  background: #F7F8F9;
  padding: 60px 0;
  box-sizing: border-box;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_bom {
    width: 100%;
    padding: 32px 20px;
  }
}
.paper_box .pb_bom .pbb_tit {
  width: 1000px;
  margin: 0 auto;
  color: #000;
  font-family: PingFang SC;
  font-size: 26px;
  font-style: normal;
  font-weight: 600;
  line-height: 30px;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_bom .pbb_tit {
    width: 375px;
    padding-left: 20px;
    box-sizing: border-box;
    font-size: 20px;
    line-height: 24px;
    margin: 0;
  }
}
.paper_box .pb_bom .pbb_list {
  width: 1000px;
  margin: 24px auto 0;
  display: flex;
  justify-content: space-between;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_bom .pbb_list {
    width: 100%;
    margin-top: 16px;
    /*padding-left: 20px;*/
    box-sizing: border-box;
    flex-wrap: wrap;
    gap: 16px;
  }
}
.paper_box .pb_bom .pbb_list .pbb_item {
  width: 227px;
  height: 132px;
  padding: 24px 16px;
  box-sizing: border-box;
  display: block;
  background: #FFF;
}
@media screen and (max-width: 750px) {
  .paper_box .pb_bom .pbb_list .pbb_item {
    width: 100%;
    height: 86px;
  }
}
.paper_box .pb_bom .pbb_list .pbb_item .ppbi_top {
  color: var(--333333, #333);
  font-family: PingFang SC;
  font-size: 17px;
  font-style: normal;
  font-weight: 500;
  line-height: 24px;
  margin-bottom: 16px;
  display: -webkit-box;
  /*将对象转为弹性盒模型展示*/
  -webkit-box-orient: vertical;
  /*设置弹性盒模型子元素的排列方式*/
  -webkit-line-clamp: 2;
  /*限制文本行数*/
  overflow: hidden;
  /*超出隐藏*/
}
@media screen and (max-width: 750px) {
  .paper_box .pb_bom .pbb_list .pbb_item .ppbi_top {
    font-size: 14px;
    line-height: 18px;
    -webkit-line-clamp: 1;
  }
}
.paper_box .pb_bom .pbb_list .pbb_item .ppbi_bom {
  display: flex;
  justify-content: space-between;
}
.paper_box .pb_bom .pbb_list .pbb_item .ppbi_bom .ppbib_left {
  color: #999;
  font-family: PingFang SC;
  font-size: 14px;
  font-style: normal;
  font-weight: 400;
  line-height: 20px;
}
.paper_box .pb_bom .pbb_list .pbb_item:hover .ppbi_top {
  color: #794EFF;
}