.big {
  width: 6.54rem;
  margin: auto;
  margin-bottom: 1rem;
}
.big .news_til_box {
  height: .48rem;
  position: relative;
  margin-top: .47rem;
}
.big .news_til_box .news_til {
  width: 1.6rem;
  height: .44rem;
  background: #585858;
  transform: skewX(-20deg);
  position: relative;
  margin-left: .08rem;
}
.big .news_til_box .news_til h3 {
  transform: skewX(20deg);
  letter-spacing: 2px;
  font-size: .23rem;
  color: #ffffff;
  font-weight: normal;
  line-height: .44rem;
  text-align: center;
}
.big .news_til_box .news_til .news_line {
  width: 6.45rem;
  height: .04rem;
  background: #2ad9fe;
}
.big .news_til_box .news_til_mask {
  position: absolute;
  width: 1.5rem;
  height: .41rem;
  background: #2AD9FE;
  top: -0.15rem;
  left: .93rem;
  z-index: -2;
  transform: skewX(-20deg);
}
.big .news_til_box .choose_year {
  position: absolute;
  right: .1rem;
  top: -0.15rem;
  text-align: center;
  background: #fff;
  font-size: .17rem;
  font-weight: 400;
  color: #aaaaaa;
  z-index: 10;
}
.big .news_til_box .choose_year .sy {
  height: .44rem;
  border: 1px solid #dddddd;
  line-height: .44rem;
  transform: skewX(15deg);
  margin-left: -0.06rem;
  width: 1.24rem;
  box-sizing: border-box;
}
.big .news_til_box .choose_year .sy span {
  display: block;
  transform: skewX(-15deg);
  background: url('../../../images/xx.png') 0.9rem no-repeat;
  background-size: .14rem .14rem ;
  text-align: left;
  padding-left: .3rem;
}
.big .news_til_box .choose_year .ey {
  display: none;
  width: 1.24rem;
  height: .44rem;
  border: 1px solid #dddddd;
  border-top: 0;
  line-height: .44rem;
  box-sizing: border-box;
}
.big .news_til_box .choose_year .ny {
  display: none;
  width: 1.24rem;
  height: .44rem;
  border: 1px solid #dddddd;
  border-top: 0;
  line-height: .44rem;
  box-sizing: border-box;
}
.big .big_list_box {
  margin-top: .66rem;
  width: 6.55rem;
}
.big .big_list_box .s1_box {
  overflow: hidden;
}
.big .big_list_box .s1_box .s1_til {
  width: .88rem;
  height: .37rem;
  background: #2ad9fe;
  border-radius: 3px;
  font-size: .18rem;
  font-weight: 400;
  color: #ffffff;
  line-height: .37rem;
  text-align: center;
  border: 1px solid transparent;
  box-sizing: border-box;
}
.big .big_list_box .s1_box .s1_content {
  width: 5.5rem;
  border: 1px solid #e2e2e2;
  padding: .42rem .22rem 0 .36rem;
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
  transition: height 1s;
}
.big .big_list_box .s1_box .s1_content .s1_more {
  position: absolute;
  width: 1.05rem;
  height: .39rem;
  background: #2AD9FE;
  transform: skewX(-25deg);
  left: .45rem;
  bottom: .23rem;
}
.big .big_list_box .s1_box .s1_content .s1_more img {
  display: block;
  transform: skewX(25deg);
  width: .36rem;
  height: .18rem;
  margin: auto;
  margin-top: .12rem;
}
.big .big_list_box .s1_box .s1_content .s1_list {
  overflow: hidden;
  margin-bottom: .3rem;
}
.big .big_list_box .s1_box .s1_content .s1_list .s1_time {
  width: 1.3rem;
  background: url('../../../images/date.png') no-repeat;
  background-size: .2rem .2rem;
  padding-left: .28rem;
  font-size: .16rem;
  font-weight: 400;
  color: #787878;
  box-sizing: border-box;
}
.big .big_list_box .s1_box .s1_content .s1_list .s1_text {
  width: 3.55rem;
  background: #e7e7e7;
  border-radius: 3px;
  padding: .13rem .15rem .13rem .15rem;
  box-sizing: border-box;
  font-size: .16rem;
  font-weight: 400;
  color: #323232;
  line-height: .26rem;
}
