.return {
  width: 50px;
  height: 50px;
  border: 1px solid #ccc;
  margin-top: 170px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transform: translateX(-80px) rotate(-135deg);
  transition: all 1s;
}
.return:hover {
  transform: translateX(-80px) rotate(-180deg);
  background-color: #2B33FF;
}
.return:hover img {
  filter: brightness(0) invert(1);
}
.return img {
  filter: brightness(0);
  transition: all 1s;
}
.section_1 .warp {
  width: 1400px;
  margin: 0 auto;
}
.section_1 .warp .title {
  padding-bottom: 40px;
  border-bottom: 1px solid #E9E9E9;
}
.section_1 .warp .title h3 {
  font-family: MR;
  font-size: 50px;
  color: #111;
}
.section_1 .warp .title .time {
  color: #999;
  font-size: 18px;
  line-height: 30px;
  margin-top: 12px;
  font-family: MR;
}
.section_1 .warp .main {
  padding-top: 40px;
  padding-bottom: 27px;
  border-bottom: 1px solid #ccc;
}
.section_1 .warp .main p {
  color: #666;
  font-size: 20px;
  font-family: MR;
  line-height: 36px;
}
/* .section_1 .warp .main p:not(:last-child) {
  margin-bottom: 40px;
} */
.section_1 .warp .tab {
  padding-top: 44px;
  padding-bottom: 86px;
}
.section_1 .warp .tab .prev {
  margin-bottom: 20px;
}
.section_1 .warp .tab .prev,
.section_1 .warp .tab .next {
  color: #111;
  font-size: 30px;
  font-family: MR;
  transition: color 1s;
}
.section_1 .warp .tab .prev a,
.section_1 .warp .tab .next a {
  color: #111;
  font-family: MR;
  transition: color 1s;
}
.section_1 .warp .tab .prev a:hover,
.section_1 .warp .tab .next a:hover {
  color: #2B33FF;
}
.section_2 .warp {
  width: 1680px;
  margin: 0 auto;
  padding-bottom: 100px;
}
.section_2 .warp .title {
  margin-bottom: 33px;
}
.section_2 .warp .title h3 {
  color: #111;
  font-size: 30px;
  font-family: MR;
}
.section_2 .warp .main {
  display: flex;
  justify-content: space-between;
  grid-gap: 0 60px;
}
.section_2 .warp .main .item{
  width: 49%;
}
.section_2 .warp .main.aos-animate {
  transition-delay: 0.3s;
}
.section_2 .warp .main .item .img {
  overflow: hidden;
}
.section_2 .warp .main .item .img img {
  transition: all 2s;
  width: 100%;
}
.section_2 .warp .main .item .text {
  padding-top: 40px;
}
.section_2 .warp .main .item .text .time {
  font-size: 16px;
  color: #999;
  font-size: 18px;
  font-family: MR;
}
.section_2 .warp .main .item .text .top {
  margin-top: 23px;
  margin-bottom: 30px;
}
.section_2 .warp .main .item .text .top h4 {
  color: #111;
  font-size: 30px;
  font-family: MR;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  transition: all 1s;
}
.section_2 .warp .main .item .text .bottom p {
  color: #666;
  font-size: 18px;
  font-family: MR;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}
.section_2 .warp .main .item:hover .img img {
  transform: scale(1.1);
}
.section_2 .warp .main .item:hover .text h4 {
  color: #2B33FF;
}
header {
  background-color: #fff;
}
header .header .right .us a .btn__content {
  color: #252627;
}
header .header .right .tab {
  background-color: #252627;
}
header .header .right .tab .line {
  color: #fff;
}
header .header .right .tab a {
  color: #fff;
}
header .header .right .tab a.active {
  color: #B29FFF;
}
header .btn__outline rect {
  stroke: rgba(0, 0, 0, 0.3);
}
header .btn__outline rect + rect {
  stroke: #666;
}
.more {
  background-color: #252627;
}
.more .head_click .show div {
  background: #fff;
}
.more .head_click .hide:after,
.more .head_click .hide:before {
  background-color: #fff;
}
@media screen and (max-width:1792px){
  .section_1 .warp {
    width: 80%;
  }
  .section_2 .warp{
    width: 90%;
  }
  .section_2 .warp .main {
    grid-gap: 0;
  }
  .section_2 .warp .main .item{
    width: 48%;
  }
}
@media screen and (max-width:1680px){
  .section_1 .warp .title h3 {
    font-size: 42px;
  }
  .section_1 .warp .title {
    padding-bottom: 20px;
  }
  .section_1 .warp .main p {
    font-size: 18px;
  }
  .section_1 .warp .tab .prev, .section_1 .warp .tab .next {
    font-size: 24px;
  }
  .section_2 .warp .main .item .text .top h4 {
    font-size: 28px;
  }
  .section_2 .warp .main .item .text .time,
  .section_2 .warp .main .item .text .bottom p {
    font-size: 16px;
  }
}
@media screen and (max-width:1440px){
  .section_1 .warp .title h3 {
    font-size: 36px;
  }
  .section_1 .warp .title .time {
    font-size: 16px;
  }
  .section_1 .warp .main p span{
      font-size: 16px !important;
      line-height: 32px;
  }
  .section_1 .warp .main p {
    font-size: 16px;
    line-height: 32px;
  }
  .section_1 .warp .tab .prev, .section_1 .warp .tab .next {
    font-size: 20px;
  }
  
}
@media screen and (max-width:1024px){
  .return{
    transform: rotate(-135deg);
    margin-bottom: 30px;
    width: 40px;
    height: 40px;
  }
  .return:hover {
    transform:rotate(-180deg);
    background-color: #2B33FF;
  }
  .section_1 .warp{
    width: 90%;
  }
  .section_1 .warp .title h3 {
    font-size: 32px;
  }
  .section_1 .warp .main {
    padding-top: 30px;
  }
  .section_1 .warp .main p span {
    font-size: 14px !important;
    line-height: 28px;
  }
  .section_1 .warp .main p {
    font-size: 14px;
    line-height: 28px;
  }
  .section_1 .warp .tab .prev, .section_1 .warp .tab .next {
    font-size: 18px;
  }
  .return img{
    width: 16px;
  }
  .section_1 .warp .tab {
    padding-top: 30px;
    padding-bottom: 60px;
  }
  .section_2 .warp{
    padding-bottom: 60px;
  }
  .section_2 .warp .main .item .text {
    padding-top: 20px;
  }
  .section_2 .warp .main .item .text .top {
    margin-top: 15px;
    margin-bottom: 15px;
  }
  .section_2 .warp .main .item .text .top h4 {
    font-size: 24px;
  }
  .section_2 .warp .title h3 {
    font-size: 24px;
  }

  header .header .right .tab{
    background-color: #F8F8E4;
  }
  header .header .right .tab a{
    color: #252627;
  }
  header .header .right .tab a.active{
    color: #451CEC;
  }
  .more{
    background-color: #F8F8E4;
  }
  .more .head_click .show div{
    background-color: #000;
  }
  .more .head_click .hide:after,
  .more .head_click .hide:before{
    background-color: #000;
  }
  .return {
      margin-top: 120px;
  }
}

@media screen and (max-width:540px){
  .section_1 .warp .title h3 {
    font-size: 28px;
  }
  .section_2 .warp .main .item .text .top h4 {
    font-size: 20px;
  }
  .section_2 .warp .main .item .text .top{
    margin-top: 10px;
    margin-bottom: 10px;
  }
  .section_2 .warp .main .item .text .time, .section_2 .warp .main .item .text .bottom p {
    font-size: 14px;
  }
  .section_2 .warp .main .item {
    width: 100%;
    margin-bottom: 30px;
  }
  .section_2 .warp .main{
    flex-direction: column;
  }
  .section_1 .warp .tab .prev, .section_1 .warp .tab .next {
    font-size: 16px;
  }
}