微信服务�ent).ready(function(){ /* ----- 侧边悬浮 ---- */ $(document).on("mouseenter", ".suspension .a", function(){ var _this = $(this); var s = $(".suspension"); var isService = _this.hasClass("a-service"); var isServicePhone = _this.hasClass("a-service-phone"); var isQrcode = _this.hasClass("a-qrcode"); if(isService){ s.find(".d-service").show().siblings(".d").hide();} if(isServicePhone){ s.find(".d-service-phone").show().siblings(".d").hide();} if(isQrcode){ s.find(".d-qrcode").show().siblings(".d").hide();} }); $(document).on("mouseleave", ".suspension, .suspension .a-top", function(){ $(".suspension").find(".d").hide(); }); $(document).on("mouseenter", ".suspension .a-top", function(){ $(".suspension").find(".d").hide(); }); $(document).on("click", ".suspension .a-top", function(){ $("html,body").animate({scrollTop: 0}); }); $(window).scroll(function(){ var st = $(document).scrollTop(); var $top = $(".suspension .a-top"); if(st > 300){ $top.css({display: 'block'}); }else{ if ($top.is(":visible")) { $top.hide(); }); }else{ if ($top.is(":visible")) { $top.hide(); } } }); });