.landing>section{overflow:hidden;position:relative;max-width:2560px;margin:0 auto;background:#f5f5f5}.landing>section>.cont_img{position:relative}.landing>section>.cont_img img{position:absolute;top:0;left:50%;width:2560px;margin-left:-1280px}.landing>section>.cont_img>.img1 img{width:1280px}.landing .section01 .cont_img{height:590px}.landing .section02 .cont_img{height:280px}.landing .section03 .cont_img{height:870px}.landing .section04 .cont_img{height:870px}.landing .section05 .cont_img{height:870px}.landing .section06 .cont_img{height:870px}.landing .section07 .cont_img{height:1180px}.landing .section08 .cont_img{height:870px}.landing .section09 .cont_img{height:1599px}.landing .section10 .cont_img{height:960px}.landing .section11 .cont_img{height:870px}.landing .section12 .cont_img{height:870px}.landing .section13 .cont_img{height:960px}.landing .section14 .cont_img{height:960px}.box_nav_m{display:none}.box_nav{position:fixed;top:200px;right:96px;opacity:1;z-index:10}.box_nav>a{width:120px;height:32px;border:1px solid #dfe1e6;border-radius:4px;font-size:12px;line-height:32px;color:#dfe1e6;text-align:center;margin-bottom:8px;transition:.5s}.box_nav>a:hover{color:#fb793f;border-color:#fb793f}.box_nav>a.on{color:#fb793f;border-color:#fb793f}.container .box_nav_m{display:block;position:fixed;left:24px;right:24px;bottom:0;padding-top:48px;border:1px solid #333;border-radius:4px;background-color:#333;z-index:10}.container .box_nav_m .btn{overflow:hidden;position:absolute;left:0;top:0;right:0;font-size:14px;line-height:48px;height:48px;padding:0 24px;transition:.5s;color:#fff;text-decoration:none}.container .box_nav_m .btn i{float:right;line-height:48px;transition:.5s}.container .box_nav_m .list{display:none;padding:24px;box-sizing:Border-box}.container .box_nav_m .list a{font-size:12px;line-height:30px;color:#adafb3}.container .box_nav_m.open .btn:after{position:absolute;left:24px;right:24px;bottom:0;height:1px;background-color:#fff;content:''}.container .box_nav_m.open .btn i{transform:rotateZ(180deg)}