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 > 400) {
$top["css"]({ display: 'block' });
} else {
if ($top["is"](":visible")) {
$top["hide"]();
}
}
});
});