body,html{margin:0;padding:0}.header{width:100%;background:#fff;box-shadow:0 1px 3px 0 rgba(0,0,0,.1);z-index:10}.header .pic_box{position:relative;height:230px;min-width:1200px;overflow:hidden;background:url(header_empty.jpg) no-repeat center center;background-size:cover}.header .pic_box .img_box{width:1200px;margin:0 auto}.header .pic_box .img_box img{width:284.5px;height:67px;position:absolute;top:calc(50% - 33.5px)}.header .menu-list{position:absolute;height:60px;width:100%;background:#235399;box-sizing:border-box}.header .menu-list .menu-content{height:60px;width:1200px;margin:0 auto;line-height:60px;position:relative;vertical-align:middle}.header .menu-list .menu-content .left-part{float:left}.header .menu-list .menu-content .left-part ul{list-style:none;outline:0}.header .menu-list .menu-content .left-part ul li{width:158px;height:60px;float:left;cursor:pointer;text-align:center;position:relative}.header .menu-list .menu-content .left-part ul li:hover{background:#4787d7;z-index:4}.header .menu-list .menu-content .left-part ul li:hover .hover_box{display:block}.header .menu-list .menu-content .left-part ul .main_title_link{margin:0 24px;text-align:center;font-size:24px;font-family:PingFangSC-Medium,PingFang SC;font-weight:500;color:#fff}.header .menu-list .menu-content .left-part ul .hover_box{display:none;width:158px;background:#4787d7;margin-top:1px;position:absolute;top:60px;left:0;z-index:3}.header .menu-list .menu-content .left-part ul .hover_box .title .title_link{width:100%;height:60px;display:inline-block}.header .menu-list .menu-content .left-part ul .hover_box .title .title_link:hover{background:#1661af}.header .menu-list .menu-content .left-part ul .hover_box .title .title_link p{font-size:18px;font-family:PingFangSC-Regular,PingFang SC;font-weight:400;color:#fff}.header .menu-list .menu-content .right-part{position:absolute;right:0;top:12px;width:250px;line-height:37px;font-size:16px}.header .menu-list .menu-content .right-part input{width:200px;height:40px;padding-top:3px;margin-right:-6px;position:absolute;left:0;line-height:22px;outline:0;font-size:16px;text-indent:7px}.header .menu-list .menu-content .right-part button{width:50px;height:40px;border:0;position:absolute;right:0;outline:0;color:#fff;background:#d81f1d;font-size:16px;cursor:pointer}.header .menu-list .menu-content .right-part button img{width:23px;height:23px}