$(document).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");
		var iswb = _this.hasclass("a-wb");
		var iswm = _this.hasclass("a-wm");
		var isws = _this.hasclass("a-ws");
		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();}
		if(iswb){ s.find(".d-wb").show().siblings(".d").hide();}
		if(iswm){ s.find(".d-wm").show().siblings(".d").hide();}
		if(isws){ s.find(".d-ws").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 > 400){
			$top.css({display: 'block'});
		}else{
			if ($top.is(":visible")) {
				$top.hide();
			}
		}
	});
	
});