.sys {
  width: 100%;
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 2.1rem;
  box-sizing: border-box;
}

.sys .sys-con {
  font-size: .22rem;
  text-indent: .44rem;
  font-family: Noto Sans S Chinese Regular, Noto Sans S Chinese Regular-Regular;
  font-weight: 400;
  text-align: left;
  color: #444444;
  line-height: 2;
  margin-bottom: .6rem;
}

.sys .sys-con p {
  margin: 0;
}

.sys .sys-thumb-son {
  margin-bottom: .8rem;
  width: 100%;
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
}

.sys .sys-thumb-son .swiper-bto {
  position: absolute;
  height: .5rem;
  width: .3rem;
  background: #369e6d;
}

.sys .sys-thumb-son .swiper-bto::after {
  display: none;
}

.sys .sys-thumb-son .swiper-bto img {
  height: .17rem;
}

.sys .sys-thumb-son .swiper-button-prev {
  left: 0;
}

.sys .sys-thumb-son .swiper-button-next {
  right: 0;
}

.sys .sys-thumb-son .swiper-slide {
  position: relative;
}

.sys .sys-thumb-son .swiper-slide::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  transition: .3s;
}

.sys .sys-thumb-son .swiper-slide-thumb-active::after {
  background: transparent;
}

.sys .sys-thumb {
  width: 100%;
  overflow: hidden;
  margin-bottom: 10px;
}

.sys .swiper-slide {
  width: 100%;
}

.sys .swiper-slide img {
  width: 100%;
  display: block;
}