.floor3{margin-top:40px; overflow:hidden;}
.floor3 ul .item{width:25%; height:390px; position:relative; font-size:0;text-align:center; cursor:pointer;}
.floor3 .item .item_bg{width:100%;height:100%;}
.floor3 .item .mask{position:absolute; top:0; left:0;right:0;bottom:0;}
.floor3 .item .mask .bg{position:absolute; top:0; left:0;right:0;bottom:0; background-color:#161A1D; opacity:0.6;filter: alpha(opacity=60);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(60));}
.floor3 .item .mask .other_bg{opacity: 0.82; filter: alpha(opacity=82); -ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(82));}
.floor3 .item .mask .content{  position:absolute; left: 0; right: 0;top: 100px;bottom: 0; -webkit-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); -moz-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); -o-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);}
.floor3 .item .mask .content .item_img_panel{position: relative;width: 25%; height: 68px; display: inline-block;}
.floor3 .item .mask .item_img,.floor3 .item .mask .item_img_hover{  position: absolute;left: 0;right: 0;top: 0;width: 100%;display: inline-block;opacity: 1;filter: alpha(opacity=100);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(100));-webkit-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);-moz-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);-o-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);}
.floor3 .item .mask .item_img_hover{opacity:0;  filter: alpha(opacity=0);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(0));}
.floor3 .item .mask .line_panel{padding: 0;margin: 0;font-size: 0;line-height: 0;margin-top: 20px;-webkit-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); -moz-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);-o-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);}
.floor3 .item .mask .line_panel .line{width: 20px;height: 2px;background: #fff;display: inline-block;opacity: 1;filter: alpha(opacity=100);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(100));-webkit-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);-moz-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); -o-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);}
.floor3 .item .mask .item_tit{color: #fff; font-size: 22px; line-height: 24px; margin: 0; padding: 0; margin-top: 24px; font-weight: bold;}
.floor3 .item .mask .item_desc{font-size: 14px;color: #fff;text-align: center; margin-top: 30px; padding: 0px 23px; line-height: 24px; height: 72px;   -webkit-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);-moz-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);-o-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);}
.floor3 .item .mask .item_desc{opacity:0; filter: alpha(opacity=0);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(0));}
.floor3 .item .mask .item_link{display: inline-block; border: 1px solid #fff; width: 120px; height: 36px; line-height: 36px; font-size: 14px; color: #fff; text-decoration: none; margin-top: 62px;   -webkit-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);-moz-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);-o-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);}
.floor3 .item .mask .item_link{opacity:0;  filter: alpha(opacity=0);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(0));}
.floor3 .item a:hover .mask .bg{background-color:#e11221; opacity:0.6;filter: alpha(opacity=60);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(60));}
.floor3 .item a:hover .mask .item_img{opacity:0; filter: alpha(opacity=0);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(0));}
.floor3 .item a:hover .mask .item_img_hover,.floor3 .item a:hover .item_desc,.floor3 .item a:hover .item_link{opacity:1;filter: alpha(opacity=100);-ms-filter: progid:DXImageTransform.Microsoft.Alpha(opacity=(100));}
.floor3 .item a:hover .content{top:50px;}
.floor3 .item a:hover .mask .item_tit{margin-top:5px;}
.floor3 .item a:hover .item_desc,.floor3 .item a:hover .item_link{margin-top:50px;}
.floor3 .item a:hover .line_panel{margin-top:0;}
.floor3 .item a:hover .line_panel .line{display:none;}
.l {float:left;}
.banner .slick-dots{bottom:40px}
.banner .slick-dots li button{width:50px;height:5px;border-radius:0;background-color:#fff}
.banner .slick-dots li.slick-active button{background-color:#03448f;}
@media (max-width:767px){
.banner .slick-dots{opacity:0}
}