.sy_activity_warp{background:#fff}.sy_activity_warp .img_block{display:block;max-width:100%}.sy_activity_warp .box_warp{min-width:1200px;max-width:1500px;margin:0 auto;padding:0 40px;font-size:14px}.sy_activity_warp .host_selling{margin:60px auto 70px}.sy_activity_warp .powerful_box{padding-bottom:40px}.sy_activity_warp .industrial_box{margin-top:60px;position:relative}.sy_activity_warp .industrial_box .box_bg{position:absolute;top:0;left:40px;right:40px;height:222px;background-image:linear-gradient(180deg,rgba(77,171,247,.3),hsla(0,0%,100%,0) 92%);border-radius:30px}.sy_activity_warp .industrial_box .content{display:flex;justify-content:center;padding:34px}.sy_activity_warp .industrial_box .lf_video{width:56%}.sy_activity_warp .industrial_box .belt_desc_line_video{width:100%;height:100%;background-color:#000}.sy_activity_warp .industrial_box .rt_desc{flex:1 1;padding-left:28px}.sy_activity_warp .industrial_box .title{width:347px;height:109px;margin-bottom:50px}.sy_activity_warp .industrial_box .text_bx{padding:0 34px}.sy_activity_warp .industrial_box .text{font-size:18px;color:#000;letter-spacing:.64px;line-height:30px;text-indent:2em}