.container {
  position: relative;
}

.section_1 {
  position: relative;
  padding: 1.75rem 0 0 0;
}

.p_desc {
  color: rgba(141, 141, 141, 1);
}

.section_1 .top {
  text-align: center;
}

.section_1 .top .desc {
  color: rgba(102, 102, 102, 1);
  line-height: 1.6;
  font-weight: 400;
  /*font-family: 'H_Regular';*/
  font-family: 'Microsoft YaHei';
  width: 10rem;
  margin: .5rem auto;
}

.section_1 .img_box {
  width: 16.4rem;
  height: 6.64rem;
  border-radius: .3rem;
  overflow: hidden;
  margin: 0 auto;
  max-width: 100%;
  max-height: 8.1767rem;
}

.section_1 .img_box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section_2 {
  position: relative;
  padding: 1.35rem 1.4rem 1rem 1.4rem;
}

.section_2 .top {
  text-align: center;
}

.section_2 .content {
  display: flex;
  flex-direction: column;
  gap: .8rem;
  position: relative;
}

.section_2 .content .mask {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4.65rem;
  z-index: -1;
  transform: scaleX(1.18) translateY(1rem);
}

.section_2 .content .item:nth-child(odd) {
  flex-direction: row-reverse;
}

.section_2 .content .item {
  display: flex;
  gap: .9rem;
  align-items: center;
}

.section_2 .content .item .img_box {
  width: 8rem;
  height: 6.63rem;
  border-radius: .12rem;
  flex-shrink: 0;
  overflow: hidden;
}

.section_2 .content .item .img_box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section_2 .content .item .info .title {
  font-weight: 600;
  font-family: 'Microsoft YaHei';
  color: rgba(36, 145, 202, 1);
  line-height: 1.3;
  margin-bottom: .15rem;
}

.section_2 .content .item .info .title span:last-child {
  font-weight: 300;
  color: rgba(102, 102, 102, 1);

}

.section_2 .content .item .info .desc {
  font-weight: 400;
  font-family: 'Microsoft YaHei';
  color: rgba(51, 51, 51, 1);
  line-height: 1.66;
  margin-bottom: .2rem;
}

.section_2 .content .item .info .list {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  height: 3rem;
}

.section_2 .content .item .info .list .list_item {
  background: #FAFAFA;
  padding: .2rem .3rem;
  border-radius: .08rem;
}

.section_2 .content .item .info .list .list_item .list_item_label {
  display: flex;
  justify-content: space-between;

  font-weight: 600;
  font-family: 'Microsoft YaHei';
  color: rgba(51, 51, 51, 1);
  line-height: 1.44;
}

.section_2 .content .item .info .list .list_item .list_item_label .icon {
  width: .3rem;
  height: .3rem;
  border-radius: 50%;
  background: rgba(237, 237, 237, 1);
  opacity: 1;
  transition: all .5s;

  display: flex;
  align-items: center;
  justify-content: center;
}

.section_2 .content .item .info .list .list_item .list_item_label .icon img {
  width: .07rem;
  height: auto;
  object-fit: cover;
  transform: rotate(90deg);
}

.section_2 .content .item .info .list .list_item.on .list_item_label .icon {
  opacity: 0;
}

.section_2 .content .item .info .list .list_item .list_item_desc {
  font-weight: 350;
  font-family: 'Microsoft YaHei';
  color: rgba(102, 102, 102, 1);
  line-height: 1.87;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  transition: all .5s;
}

.section_2 .content .item .info .list .list_item.on .list_item_desc {
  max-height: 3rem;
  margin: .15rem 0 0 0;
}

.section_2 .content .item .page {
  font-weight: 400;
  font-family: 'M_Regular';
  color: rgba(51, 51, 51, 1);
  margin: .68rem 0 0 0;
}

.section_2 .content .item .page strong {
  color: rgba(36, 145, 202, 1);
}

.section_3 {
  position: relative;
  padding: 1.15rem 1.4rem 1rem 1.4rem;
}

.section_3 .bg {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1;
}

.section_3 .bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section_3 .top {
  text-align: center;
}

.section_3 .content {
  position: relative;
  height: 5.98rem;
  margin: 1.53rem 0 0 0;
}

.section_3 .content .item {
  display: flex;
  gap: .6rem;
  align-items: center;
  position: absolute;
  left: 0;
  top: 0;
  width: 16rem;
  background: #fff;
  border-radius: .2rem;
  transition: all .5s;
}
.section_3 .content .item:nth-child(2) {
  transform: translate(.35rem, -.35rem);
  opacity: .8;
}

.section_3 .content .item:nth-child(3) {
  transform: translate(.7rem, -.7rem);
  opacity: .6;
}

.section_3 .content .item.on {
  z-index: 1;
  opacity: 1;
}

.section_3 .content .item .img_box {
  width: 7.95rem;
  height: 5.98rem;
  border-radius: .2rem 0 0 .2rem;
  flex-shrink: 0;
  overflow: hidden;
}

.section_3 .content .item .img_box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.section_3 .content .item .info {
  padding-right: .69rem;
}
.section_3 .content .item .info .title {
  font-weight: 600;
  font-family: 'Microsoft YaHei';
  color: rgba(51, 51, 51, 1);
  line-height: 1.3;
  margin-bottom: .27rem;
}

.section_3 .content .item .info .sub_title {
  font-weight: 400;
  font-family: 'Microsoft YaHei';
  color: rgba(51, 51, 51, 1);
  line-height: 1.7;
margin-bottom: .3rem;
}

.section_3 .content .item .info .desc {
  font-weight: 350;
  font-family: 'Microsoft YaHei';
  color: rgba(102, 102, 102, 1);
  line-height: 1.7;
  height: 3.3rem;
  overflow-y: auto;
}

.section_3 .bottom {
  display: flex;
  justify-content: space-between;
  margin: .48rem 0 0 0;
}

.section_3 .bottom .page {
  font-weight: 400;
  font-family: 'M_Regular';
  color: #fff;
}

.section_3 .bottom .page strong {
  color: rgba(36, 145, 202, 1);
}

.section_3 .bottom .p_controls .btn {
 background: #fff;
 border-style: none;
}
.section_3 .bottom .p_controls .btn:hover {
  background: rgba(36, 145, 202, 1);
}



@media (max-width: 767px) {
    .section_1 {
        padding: 60px 20px 0 20px;
    }
    .section_1 .top .desc {
        width: 100%;
        font-size: 14px;
    }
    .section_1 .img_box {
        width: 100%;
        height: 40vw;
    }
    .section_2 {
        padding: 60px 20px;
        overflow: hidden;
    }
    
    .section_2 .content {
        margin: 20px 0 0 0;
    }
    .section_2 .content .item {
        flex-direction: column;
        gap: 20px;
    }
    .section_2 .content .item:nth-child(odd) {
        flex-direction: column;
    }
    .section_2 .content .item .img_box {
        width: 100%;
        height: 73vw;
    }
    .section_2 .content .item .info .title {
        font-size: 18px;
    }
    .section_2 .content .item .info .desc {
        font-size: 14px;
    }
    .section_2 .content .item .info .list {
        height: auto;
    }
    .section_2 .content .item .info .list .list_item .list_item_label {
        font-size: 14px;
    }
    .section_2 .content .item .info .list .list_item .list_item_desc {
        font-size: 12px;
    }
    
    .section_3 {
        padding: 60px 20px;
    }
    .section_3 .content {
        height: 148vw;
        margin: 60px 0 0 0;
    }
    .section_3 .content .item {
        width: 100%;
        flex-direction: column;
    }
    .section_3 .content .item .img_box {
        width: 100%;
        height: 66vw;
        border-radius: 10px;
    }
    .section_3 .content .item .info {
        padding: 0 20px 20px 20px;
    }
    .section_3 .content .item .info .title {
        font-size: 18px;
    }
    .section_3 .content .item .info .sub_title {
        font-size: 14px;
    }
    .section_3 .content .item .info .desc {
        font-size: 12px;
        height: 2.3rem;
    }
    .section_3 .content .item:nth-child(2) {
        transform: translate(0, -.35rem);
    }
    .section_3 .content .item:nth-child(3) {
        transform: translate(0, -.7rem);
    }
    
    
}