.nans_history {
  padding: 80px 0;
}

.nans_history h2 {
  font-size: 36px;
}

.nans_history .list {
  position: relative;
  margin-top: 40px;
  height: 240px;
}

.nans_history .list::after {
  content: '';
  position: absolute;
  left: 0;
  top: 119px;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
}

.nans_history .swiper-slide {
  height: 240px;
  box-sizing: border-box
}

.nans_history .swiper-slide .inner {
  opacity: 1;
  width: 240px;
  height: 240px;
  border: 1px solid transparent;
  margin: 0 auto;
  cursor: pointer;
  border-radius: 50%;
  overflow: hidden;
  box-sizing: border-box;
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-align-items: center;
  align-items: center
}

.nans_history .swiper-slide .inner em {
  display: block;
  width: 113px;
  height: 113px;
  font-size: 24px;
  color: #fff;
  line-height: 113px;
  text-align: center;
  border-radius: 50%;
  overflow: hidden;
  background-color: color-mix(in srgb, var(--color-primary) 70%, white 30%);
  transition: all .3s ease 0s;
}

.nans_history .swiper-slide p {
  display: none;
  margin: 40px 0 0;
  text-align: center;
}

.nans_history .swiper-slide-active .inner {
  border: 1px solid var(--color-primary);
  border-radius: 50%
}

.nans_history .swiper-slide-active .inner em {
  width: 184px;
  height: 184px;
  line-height: 184px;
  font-weight: 700;
  font-size: 48px;
  background-color: var(--color-primary);
}

.nans_history .text {
  margin: 45px auto 0;
  max-width: 700px;
  text-align: center;
}
.nans_history .text ul,
.nans_history .text ol {
  list-style-position: inside;
}





@media(max-width:991px){

.nans_history .swiper-slide .inner {width: 200px; height: 200px;}
.nans_history .swiper-slide-active .inner em {width: 150px;height: 150px;line-height: 150px;font-size: 34px;}
.nans_history .swiper-slide {height: 201px;}
.nans_history .list::after {top: 100px;}

}

@media(max-width:768px){


.nans_history .swiper-slide .inner {width: 160px; height: 160px;}
.nans_history .swiper-slide {height: 165px;}
.nans_history .list::after {top: 80px;}
.nans_history .swiper-slide .inner em {width: 70px;height: 70px;font-size: 16px;line-height: 70px;}
.nans_history .swiper-slide-active .inner em {width: 100px;height: 100px;line-height: 100px;font-size: 27px;}
}






@media screen and (max-width: 1281px) {
    .nans_history h2 {font-size: 34px;}
}

@media screen and (max-width: 1171px) {
    .nans_history h2 { font-size: 30px;}
}

@media screen and (max-width: 992px) {
    .nans_history h2 {font-size: 26px; }
}

@media screen and (max-width: 768px) {
    .nans_history h2 {font-size: 24px;}
}

@media screen and (max-width: 480px) {
    .nans_history h2 {font-size: 22px;}
}