@media only screen and (min-width:769px) {

  .xg_content .swiper-button-next{width: 63px;height: 63px;background: url(https://rc0.zihu.com/g4/M00/86/01/CgAG0mRUvkyAUMoHAAAcQaqEYmc223.png) no-repeat 0 -130px;}
  .xg_content .swiper-button-prev{width: 63px;height: 63px;background: url(https://rc0.zihu.com/g4/M00/86/01/CgAG0mRUvkyAUMoHAAAcQaqEYmc223.png) no-repeat 0 0;}

  .xg_content .swiper-button-next:hover{width: 63px;height: 63px;background: url(https://rc0.zihu.com/g4/M00/86/01/CgAG0mRUvkyAUMoHAAAcQaqEYmc223.png) no-repeat 0 -195px;}
  .xg_content .swiper-button-prev:hover{width: 63px;height: 63px;background: url(https://rc0.zihu.com/g4/M00/86/01/CgAG0mRUvkyAUMoHAAAcQaqEYmc223.png) no-repeat 0 -65px;}

}

@media only screen and (max-width:768px) {

  .xg_content .swiper-button-next{width: 40px;height: 40px;background: url(https://rc0.zihu.com/g4/M00/86/01/CgAG0mRUvkyAUMoHAAAcQaqEYmc223.png) no-repeat 0 -82px;background-size:cover}
  .xg_content .swiper-button-prev{width: 40px;height: 40px;background: url(https://rc0.zihu.com/g4/M00/86/01/CgAG0mRUvkyAUMoHAAAcQaqEYmc223.png) no-repeat 0 0;background-size:cover}

  .xg_content .swiper-button-next:hover{width: 40px;height: 40px;background: url(https://rc0.zihu.com/g4/M00/86/01/CgAG0mRUvkyAUMoHAAAcQaqEYmc223.png) no-repeat 0 -124px;background-size:cover}
  .xg_content .swiper-button-prev:hover{width: 40px;height: 40px;background: url(https://rc0.zihu.com/g4/M00/86/01/CgAG0mRUvkyAUMoHAAAcQaqEYmc223.png) no-repeat 0 -41px;background-size:cover}
  
}