.history_top_img{height: 5.79rem;background-image: url(//insight-officialwebsite.oss.cdn.gdinsight.com/portal_images/mobile/history/history_top_img.jpg);overflow: hidden;}
.history_top_img{background-repeat: no-repeat;background-size: cover;background-position: center;}

.div_page{font-size: .23rem;padding-top: 1.6rem;padding-bottom: 1.6rem;position: relative;}
.history_page_top_title{font-size: .34rem;margin-bottom: .55rem;}
.history_page_word{line-height: 1.8;}
.history_page_title{font-size: .26rem;margin: .5rem 0;}

.history_video{margin-top: .66rem;position: relative;width: 100%;}