.banner_center{background-color:#fff}.banner_center .banner_center_ul{position:relative;width:100%;max-width:1920px;height:400px;margin:0 auto;overflow:hidden}@media screen and (min-width: 901px) and (max-width: 1024px){.banner_center .banner_center_ul{height:344px}}@media screen and (min-width: 751px) and (max-width: 900px){.banner_center .banner_center_ul{height:270px}}.banner_center .banner_center_ul .ban_ul_slide{position:relative;width:100%;height:100%;top:0;left:0;z-index:5}.banner_center .banner_center_ul .ban_ul_slide .loading_gif_point{position:absolute;width:100%;height:100%;top:0;left:0;z-index:5;opacity:0;overflow:hidden;display:flex;justify-content:center;align-items:center;transition:all 0.6s ease-in-out}.banner_center .banner_center_ul .ban_ul_slide .loading_gif_point a{display:block;height:100%;text-align:center}.banner_center .banner_center_ul .ban_ul_slide .loading_gif_point a img{width:auto;max-width:1920px;height:400px;margin:0 auto;display:block}@media screen and (min-width: 901px) and (max-width: 1024px){.banner_center .banner_center_ul .ban_ul_slide .loading_gif_point a img{height:344px}}@media screen and (min-width: 751px) and (max-width: 900px){.banner_center .banner_center_ul .ban_ul_slide .loading_gif_point a img{height:270px}}.banner_center .banner_center_ul .ban_ul_slide .active{opacity:1;z-index:10}.banner_center .banner_center_ul .banner_top_mask{position:absolute;width:100%;height:50px;left:0;top:0;z-index:5}.banner_center .banner_center_ul .banner_down_mask{position:absolute;width:100%;height:50px;left:0;bottom:0;z-index:5}.banner_center .banner_center_ul .banner_left_mask{position:absolute;width:150px;height:calc(100% - 100px);left:0;top:50px;z-index:5}.banner_center .banner_center_ul .banner_right_mask{position:absolute;width:150px;height:calc(100% - 100px);right:0;top:50px;z-index:5}.banner_center .banner_center_ul #ban_ul_indict{position:absolute;left:50%;bottom:10px;z-index:6;transform:translate(-50%, 0);display:flex;align-items:center;justify-content:center}.banner_center .banner_center_ul #ban_ul_indict li{width:30px;border:5px solid transparent;border-left:none;border-right:none;margin-right:8px;cursor:pointer;transition:all 0.4s ease-in-out}.banner_center .banner_center_ul #ban_ul_indict li::before{content:"";display:block;width:30px;height:2px;transition:all 0.4s ease-in-out;background-color:rgba(255,255,255,0.5)}.banner_center .banner_center_ul #ban_ul_indict .active{width:60px}.banner_center .banner_center_ul #ban_ul_indict .active::before{width:60px;background:#fff}