.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: 1680px;
  margin: 0 auto;
  padding-bottom: 90px;
  border-bottom: 1px solid #E9E9E9;
}
.section_1 .warp .main {
  display: flex;
}
.section_1 .warp .main .right {
  margin-left: 67px;
  flex: 1;
}
.section_1 .warp .main .right .title {
  margin-bottom: 50px;
}
.section_1 .warp .main .right .title h3 {
  color: #111;
  font-size: 50px;
}
.section_1 .warp .main .right .list .item {
  margin-bottom: 30px;
}
.section_1 .warp .main .right .list .item .key {
  margin-bottom: 20px;
}
.section_1 .warp .main .right .list .item .key h4 {
  color: #101214;
  font-size: 30px;
}
.section_1 .warp .main .right .list .item .value p {
  color: #666;
  font-size: 20px;
  line-height: 36px;
}
.section_1 .warp .main .right .list .item:nth-child(1) {
  transition-delay: 0.3s;
}
.section_1 .warp .main .right .list .item:nth-child(2) {
  transition-delay: 0.6s;
}
.section_1 .warp .main .right .list .item:nth-child(3) {
  transition-delay: 0.9s;
}
.section_1 .warp .main .right .list .item:nth-child(4) {
  transition-delay: 1.2s;
}
.section_2 .warp {
  width: 1680px;
  margin: 0 auto;
  padding-top: 60px;
}
.section_2 .warp .title {
  margin-bottom: 30px;
}
.section_2 .warp .title h3 {
  color: #111;
  font-size: 30px;
}
.section_2 .warp .main p {
  color: #666;
  font-size: 20px;
  line-height: 36px;
}
.section_2 .warp .main p:not(:last-child) {
  margin-bottom: 60px;
}
.section_2 .warp .main.prodetail_page img {
  margin: 10px auto;
  display: block;
  width: 60%;
}
.section_3 .warp {
  padding-top: 97px;
  width: 1680px;
  margin: 0 auto;
  padding-bottom: 97px;
}
.section_3 .warp .title {
  margin-bottom: 50px;
}
.section_3 .warp .title h3 {
  color: #111;
  font-size: 50px;
}
.section_3 .warp .main {
  display: flex;
  justify-content: space-between;
}
.section_3 .warp .main.aos-animate {
  transition-delay: 0.3s;
}
.section_3 .warp .main .trem {
  width: 800px;
}
.section_3 .warp .main .trem .img {
  margin-bottom: 27px;
}
.section_3 .warp .main .trem .img img {
  width: 100%;
}
.section_3 .warp .main .trem .text h4 {
  font-size: 30px;
  margin-bottom: 30px;
}
.section_3 .warp .main .trem .text p {
  color: #666;
  font-size: 20px;
  line-height: 36px;
}
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: 1856px){
	.section_1 .warp{
    width: 90%;
  }
  .return{
    transform: rotate(-135deg);
  }
  .return:hover{
    transform: rotate(-180deg);
  }
  .section_1 .warp .main .left{
    width: 50%;
  }
  .section_2 .warp{
    width: 90%;
  }
  .section_3 .warp{
    width: 90%;
  }
  .section_3 .warp .main .trem{
    width: 48%;
  }
}
@media screen and (max-width: 1680px){
  .section_1 .warp .main .right .title h3 {
    font-size: 42px;
  }
  .section_1 .warp .main .right .list .item .key h4 {
    font-size: 28px;
  }
  .section_1 .warp .main .right .list .item .value p {
    font-size: 18px;
    line-height: 32px;
  }
  .section_1 .warp .main .right .title {
    margin-bottom: 30px;
  }
  .section_1 .warp .main .right .list .item .key {
    margin-bottom: 10px;
  }
  .section_1 .warp .main .right .list .item {
    margin-bottom: 20px;
  }
  .section_2 .warp .title h3 {
    font-size: 28px;
  }
  .section_2 .warp .main p {
    font-size: 18px;
    line-height: 32px;
  }
  .section_3 .warp .title h3 {
    font-size:42px;
  }
  .section_3 .warp .main .trem .text h4 {
    font-size: 28px;
  }
  .section_3 .warp .main .trem .text p {
    font-size: 18px;
    line-height: 32px;
  }
}
@media screen and (max-width: 1440px){
  .section_1 .warp .main .right .title h3 {
    font-size: 36px;
  }
  .section_1 .warp .main .right .list .item .key h4 {
    font-size: 24px;
  }
  .section_1 .warp .main .right .list .item .value p {
    font-size: 16px;
    line-height: 28px;
  }
  .section_1 .warp .main .right {
    margin-left: 40px;
  }
  .section_3 .warp .main .trem .text h4 {
    font-size: 24px;
    margin-bottom: 20px;
  }
  .section_3 .warp .title h3 {
    font-size: 36px;
  }
  .section_3 .warp .main .trem .text p {
    font-size: 16px;
    line-height: 28px;
  }
}
@media screen and (max-width: 1024px){
  .return {
    margin-top: 140px;
  }
  .section_1 .warp .main{
    flex-direction: column;
  }
  .section_1 .warp .main .left {
    width: 100%;
  }
  .section_1 .warp .main .left img{
    width: 100%;
  }
  .section_1 .warp .main .right{
    margin-left: 0;
    margin-top: 30px;
  }
  .section_1 .warp .main .right .title h3 {
    font-size: 32px;
  }
  .return img{
    width: 16px;
  }
  .return {
    width: 40px;
    height: 40px;
  }
  .section_1 .warp .main .right .list .item .value p {
    font-size: 14px;
    line-height: 24px;
  }
  .section_1 .warp{
    padding-bottom:30px;
  }
  .section_1 .warp .main .right .list .item:last-child{
    margin-bottom: 0;
  }
  .section_2 .warp{
    padding-top: 30px;
  }
  .section_2 .warp .title h3 {
    font-size: 24px;
  }
  .section_2 .warp .main p {
    font-size: 14px;
    line-height: 24px;
  }
  .section_2 .warp .main p:not(:last-child) {
    margin-bottom: 30px;
  }
  .section_3 .warp{
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .section_3 .warp .main .trem .text h4 {
    font-size: 20px;
  }
  .section_3 .warp .main .trem .text p {
    font-size: 14px;
    line-height: 24px;
  }
  .section_3 .warp .title {
    margin-bottom: 20px;
  }
  .section_3 .warp .title h3 {
    font-size: 32px;
  }
  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;
  }
}

@media screen and (max-width: 540px){
  .return {
    margin-top: 120px;
  } 
  .section_1 .warp .main .right .title h3 {
    font-size: 28px;
  }
  .section_1 .warp .main .right .list .item .key h4 {
    font-size: 20px;
  }
  .section_3 .warp .title h3 {
    font-size: 28px;
  }
  .section_3 .warp .main .trem{
    width: 100%;
    margin-bottom: 20px;
  }
  .section_3 .warp .main{
    flex-direction: column;
  }
  .section_3 .warp .main .trem .text h4 {
    margin-bottom: 10px;
  }
  .section_3 .warp .main .trem .img {
    margin-bottom: 15px;
  }
}