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0!==arguments[0]?arguments[0]:"default";return n.data[e]},setLocaleData:o,resetLocaleData:function(e,t){n.data={},n.pluralForms={},o(e,t)},subscribe:function(e){return s.add(e),function(){return s.delete(e)}},__:function(e,t){var n=l(t,void 0,e);return i?(n=i.applyFilters("i18n.gettext",n,e,t),i.applyFilters("i18n.gettext_"+d(t),n,e,t)):n},_x:c,_n:function(e,t,n,s){var r=l(s,void 0,e,t,n);return i?(r=i.applyFilters("i18n.ngettext",r,e,t,n,s),i.applyFilters("i18n.ngettext_"+d(s),r,e,t,n,s)):r},_nx:function(e,t,n,s,r){var a=l(r,s,e,t,n);return i?(a=i.applyFilters("i18n.ngettext_with_context",a,e,t,n,s,r),i.applyFilters("i18n.ngettext_with_context_"+d(r),a,e,t,n,s,r)):a},isRTL:function(){return"rtl"===c("ltr","text direction")},hasTranslation:function(e,t,s){var r,a,o=t?t+""+e:e,l=!(null===(r=n.data)||void 0===r||null===(a=r[null!=s?s:"default"])||void 0===a||!a[o]);return i&&(l=i.applyFilters("i18n.has_translation",l,e,t,s),l=i.applyFilters("i18n.has_translation_"+d(s),l,e,t,s)),l}}}(0,0,G));H.getLocaleData.bind(H);var q=H.setLocaleData.bind(H),$=(H.resetLocaleData.bind(H),H.subscribe.bind(H),H.__.bind(H));H._x.bind(H),H._n.bind(H),H._nx.bind(H),H.isRTL.bind(H),H.hasTranslation.bind(H);const V=Object.freeze({TAB:9,RETURN:13,ESC:27,SPACE:32,END:35,HOME:36,LEFT:37,UP:38,RIGHT:39,DOWN:40});function K(e){var t=['a[href]:not([aria-hidden="true"])',"area[href]","input:not([disabled])","select:not([disabled])","textarea:not([disabled])","button:not([disabled])","iframe","object","embed","[contenteditable]",'[tabindex]:not([tabindex^="-"])'].join(","),i=e.querySelectorAll(t);return Array.prototype.slice.call(i)}var W=function(){return c(function e(t){if(a(this,e),this.stringDescription="Popup",Object.assign(this,t),this.interactiveChildElements=K(this.target),this.interactiveChildElements.length>0){var i=r(this.interactiveChildElements,1)[0];this.firstItem=i,this.lastItem=this.interactiveChildElements[this.interactiveChildElements.length-1]}this.state={expanded:!1},this.setup=this.setup.bind(this),this.destroy=this.destroy.bind(this),this.manageExpandedState=this.manageExpandedState.bind(this),this.setExpandedState=this.setExpandedState.bind(this),this.controllerKeyDownHandler=this.controllerKeyDownHandler.bind(this),this.targetKeyDownHandler=this.targetKeyDownHandler.bind(this),this.closeOnTabOut=this.closeOnTabOut.bind(this),this.closeOnOutsideClick=this.closeOnOutsideClick.bind(this),this.setup()},[{key:"setExpandedState",value:function(e){this.controller.setAttribute("aria-expanded","".concat(e)),this.target.setAttribute("aria-hidden","".concat(!e)),this.state.expanded=e}},{key:Symbol.toStringTag,get:function(){return this.stringDescription}},{key:"setup",value:function(){var e=this.state.expanded;this.controller.popup=this,this.target.popup=this,this.controller.setAttribute("aria-haspopup","menu"),this.controller.setAttribute("aria-expanded","".concat(e)),this.controller.setAttribute("aria-controls",this.target.id),this.target!==this.controller.nextElementSibling&&this.controller.setAttribute("aria-owns",this.target.id),this.target.setAttribute("aria-hidden","".concat(!e)),this.controller.addEventListener("click",this.manageExpandedState),this.controller.addEventListener("keydown",this.controllerKeyDownHandler),this.target.addEventListener("keydown",this.targetKeyDownHandler),document.body.addEventListener("click",this.closeOnOutsideClick)}},{key:"destroy",value:function(){this.controller.popup=null,this.target.popup=null,this.controller.removeAttribute("aria-haspopup"),this.controller.removeAttribute("aria-expanded"),this.controller.removeAttribute("aria-controls"),this.target!==this.controller.nextElementSibling&&this.controller.removeAttribute("aria-owns"),this.target.removeAttribute("aria-hidden"),this.controller.removeEventListener("click",this.manageExpandedState),this.controller.removeEventListener("keydown",this.controllerKeyDownHandler),this.target.removeEventListener("keydown",this.targetKeyDownHandler),document.body.removeEventListener("click",this.closeOnOutsideClick),this.state={expanded:!1}}},{key:"controllerKeyDownHandler",value:function(e){if(this.state.expanded){var t=V.ESC,i=V.TAB,n=e.keyCode;t===n?(e.stopPropagation(),e.preventDefault(),this.setExpandedState(!1)):i===n&&(e.preventDefault(),this.firstItem.focus())}}},{key:"targetKeyDownHandler",value:function(e){var t=V.ESC,i=V.TAB,n=e.keyCode,s=this.state.expanded,r=document.activeElement;t===n&&s?(e.stopPropagation(),e.preventDefault(),this.setExpandedState(!1),this.controller.focus()):i===n&&(!e.shiftKey||this.firstItem!==r&&this.target!==r?this.lastChild===r&&this.setExpandedState(!1):(e.preventDefault(),this.controller.focus()))}},{key:"manageExpandedState",value:function(e){e.preventDefault(),this.state.expanded?this.setExpandedState(!1):this.setExpandedState(!0)}},{key:"closeOnTabOut",value:function(e){V.TAB===e.keyCode&&!e.shiftKey&&this.state.expanded&&this.setExpandedState(!1)}},{key:"closeOnOutsideClick",value:function(e){this.state.expanded&&e.target!==this.controller&&!this.target.contains(e.target)&&this.setExpandedState(!1)}}])}(),U=function(){function e(t){a(this,e),this.stringDescription="MenuItem",this.list=t,Object.assign(t,{menuItem:this}),this.listItems=Array.prototype.slice.call(t.children),this.handleListKeydown=this.handleListKeydown.bind(this),this.destroy=this.destroy.bind(this),this.init()}return c(e,[{key:Symbol.toStringTag,get:function(){return this.stringDescription}},{key:"init",value:function(){var t=this;this.menuItems=this.listItems.reduce(function(e,t){var i=t.firstElementChild;return null!==i&&"A"===i.nodeName?[].concat(m(e),[i]):e},[]),this.menuItemsLength=this.menuItems.length,this.menuItems.forEach(function(i){i.addEventListener("keydown",t.handleListKeydown);var n=t.constructor.nextElementIsUl(i);n&&(new e(n).previousSibling=i)});var i=r(this.menuItems,1);this.firstItem=i[0],this.lastItem=this.menuItems[this.menuItemsLength-1]}},{key:"handleListKeydown",value:function(e){var t=e.keyCode,i=V.UP,n=V.DOWN,s=V.LEFT,r=V.RIGHT,a=document.activeElement,o=this.list.contains(a)?a:this.menuItems[0],l=this.menuItems.length-1,d=this.menuItems.indexOf(o);if([i,n].includes(t)){e.stopPropagation(),e.preventDefault();var c=t===i?d-1:d+1;i===t&&c<0&&(c=l),n===t&&l<c&&(c=0),this.menuItems[c].focus()}else if(r===t){var u=this.constructor.nextElementIsUl(o);u&&Object.hasOwnProperty.call(u,"menuItem")&&(e.stopPropagation(),e.preventDefault(),u.menuItem.firstItem.focus())}else if(s===t&&void 0!==this.previousSibling){var p;if(e.stopPropagation(),e.preventDefault(),"[object Popup]"===(null===(p=this.previousSibling)||void 0===p||null===(p=p.popup)||void 0===p?void 0:p.toString())){e.stopPropagation(),e.preventDefault();var h=this.previousSibling.popup;h.state.expanded&&h.setExpandedState(!1)}this.previousSibling.focus()}}},{key:"destroy",value:function(){var e=this;void 0!==this.list.menuItem&&(this.list.menuItem=null,this.menuItems.forEach(function(t){var i;t.removeEventListener("keydown",e.handleListKeydown);var n=e.constructor.nextElementIsUl(t);n&&void 0!==n.menuItem&&"[object MenuItem]"===(null==n||null===(i=n.menuItem)||void 0===i?void 0:i.toString())&&n.menuItem.destroy()}))}}],[{key:"nextElementIsUl",value:function(e){var t=e.nextElementSibling;return null!==t&&"UL"===t.nodeName&&t}}])}(),Y=function(){return c(function e(t){a(this,e),this.stringDescription="Menu",this.menu=t,this.popups=[],q({"":{}},"sciencenews"),this.manageState=this.manageState.bind(this),this.handleMenuBarKeydown=this.handleMenuBarKeydown.bind(this),this.handleMenuBarClick=this.handleMenuBarClick.bind(this),this.destroy=this.destroy.bind(this),this.init()},[{key:Symbol.toStringTag,get:function(){return this.stringDescription}},{key:"manageState",value:function(e){this.state=Object.assign(this.state,e),Object.prototype.hasOwnProperty.call(e,"activeDescendant")&&this.state.activeDescendant.focus()}},{key:"init",value:function(){var e=this;this.menu.menu=this,this.menuItemsCollection=this.menu.children,this.menuItemsArray=Array.prototype.slice.call(this.menuItemsCollection),this.menuBarItems=this.menuItemsArray.reduce(function(e,t){var i=t.firstElementChild;return null!==i&&"A"===i.nodeName?[].concat(m(e),[i]):e},[]),this.menuLength=this.menuBarItems.length,this.menuBarItems.forEach(function(t){t.addEventListener("keydown",e.handleMenuBarKeydown),t.addEventListener("click",e.handleMenuBarClick)}),this.lastIndex=this.menuLength-1;var t=r(this.menuBarItems,1);this.firstItem=t[0],this.lastItem=this.menuBarItems[this.lastIndex],this.state={activeDescendant:this.firstItem},this.popups=this.menuBarItems.reduce(function(t,i){var n=i.nextElementSibling;if(null!==n&&"UL"===n.nodeName){var s=new W({controller:i,target:n});return n.addEventListener("keydown",e.handleListKeydown),new U(n).previousSibling=i,[].concat(m(t),[s])}return t},[])}},{key:"handleMenuBarKeydown",value:function(e){var t=V.LEFT,i=V.RIGHT,n=V.DOWN,s=e.keyCode,r=this.state.activeDescendant,a=this.menuBarItems.indexOf(r);if([t,i].includes(s)){e.stopPropagation(),e.preventDefault();var o=s===t?a-1:a+1;t===s&&o<0&&(o=this.lastIndex),i===s&&this.lastIndex<o&&(o=0),this.manageState({activeDescendant:this.menuBarItems[o]})}else if(n===s){var l;if("[object Popup]"===(null==r||null===(l=r.popup)||void 0===l?void 0:l.toString())){e.stopPropagation(),e.preventDefault();var d=r.popup;d.state.expanded||d.setExpandedState(!0),d.firstItem.focus()}}}},{key:"handleMenuBarClick",value:function(e){this.manageState({activeDescendant:e.target})}},{key:"destroy",value:function(){var e=this;this.menuItemsCollection=this.menu.children,this.menuItemsArray=Array.prototype.slice.call(this.menuItemsCollection),this.menuBarItems.forEach(function(t){t.removeEventListener("keydown",e.handleMenuBarKeydown),t.removeEventListener("click",e.handleMenuBarClick)}),this.popups.length>0&&this.popups.forEach(function(e){var t;void 0!==e.target.menuItem&&"[object MenuItem]"===(null==e||null===(t=e.target)||void 0===t||null===(t=t.menuItem)||void 0===t?void 0:t.toString())&&e.target.menuItem.destroy(),e.destroy()})}}])}(),X=function(){return c(function e(t,i,n){var s=arguments.length>3&&void 0!==arguments[3]?arguments[3]:250;a(this,e),Object.assign(this,{callback:n,event:i,element:t,frequency:s,timeout:!1}),this.requestTick=this.requestTick.bind(this),this.update=this.update.bind(this),this.callback?this.element.addEventListener(this.event,this.requestTick):console.error("Throttle error: you must specify a callback.")},[{key:"update",value:function(){this.callback(),window.clearTimeout(this.timeout),this.timeout=!1}},{key:"requestTick",value:function(){var e=this;this.timeout||(this.timeout=window.setTimeout(function(){window.requestAnimationFrame(e.update)},this.frequency))}},{key:"destroy",value:function(){this.element.removeEventListener(this.event,this.requestTick)}}])}();function Z(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:36,t=r(Math.random().toString(e).split("."),2)[1];return"id_".concat(t)}function J(e,t){var i=document.createElement("span");return i.classList.add("screen-reader-text"),Object.assign(i,{id:e,innerText:t}),i}var Q=function(){return c(function e(t){a(this,e),this.list=t,this.articleItems=Array.prototype.slice.call(t.children),q({"":{}},"sciencenews"),Object.assign(this,{firstItem:this.articleItems[0]}),this.lastIndex=this.articleItems.length-1,this.state={activeDescendant:this.firstItem},this.prepItems=this.prepItems.bind(this),this.updateActiveState=this.updateActiveState.bind(this),this.clearActiveState=this.clearActiveState.bind(this),this.getParentPopup=this.getParentPopup.bind(this),this.handleListBlur=this.handleListBlur.bind(this),this.handleListKeydown=this.handleListKeydown.bind(this),this.parentPopup=this.getParentPopup(),this.prepItems(),this.init()},[{key:"getParentPopup",value:function(){for(var e=this.list.parentElement;"[object Popup]"!==(null===(t=e)||void 0===t||null===(t=t.popup)||void 0===t?void 0:t.toString());){var t;e=e.parentElement}return e.popup}},{key:"prepItems",value:function(){this.articleItems.forEach(function(e){var t=K(e);""===e.id&&e.setAttribute("id",Z()),t.forEach(function(t){t.setAttribute("id",Z()),t.setAttribute("data-child-of",e.id)})})}},{key:"updateActiveState",value:function(e){this.state.activeDescendant.removeAttribute("aria-selected"),this.state.activeDescendant=e,this.list.setAttribute("aria-activedescendant",e.id),e.setAttribute("aria-selected","true")}},{key:"clearActiveState",value:function(){var e=this.state.activeDescendant;this.list.removeAttribute("aria-activedescendant"),e.removeAttribute("aria-selected"),this.state.activeDescendant=this.firstItem,this.list.setAttribute("aria-describedby",this.initialListDescribedby)}},{key:"init",value:function(){this.list.setAttribute("role","group"),this.list.setAttribute("tabindex","0"),this.initialListDescribedby="group-widget-list-help group-widget-list-enter-help group-widget-esc-help",this.activeListDescribedby="group-widget-list-help group-widget-move-back-help group-widget-tab-help group-widget-esc-help",this.constructor.addHelpText(),this.list.setAttribute("aria-describedby",this.initialListDescribedby),this.list.addEventListener("blur",this.handleListBlur),this.list.addEventListener("keydown",this.handleListKeydown)}},{key:"handleListBlur",value:function(){this.list.contains(document.activeElement)||this.clearActiveState()}},{key:"handleListKeydown",value:function(e){var t=V.UP,i=V.DOWN,n=V.RIGHT,s=V.LEFT,a=V.TAB,o=e.keyCode,l=e.shiftKey,d=this.state.activeDescendant,c=this.articleItems.indexOf(d),u=this.list.hasAttribute("aria-activedescendant"),p=this.constructor.getItemParent(d);if(u||(n===o?(e.preventDefault(),this.updateActiveState(this.firstItem),this.list.setAttribute("aria-describedby",this.activeListDescribedby)):s===o?(e.preventDefault(),this.parentPopup.setExpandedState(!1),this.parentPopup.controller.focus()):[t,i].includes(o)&&(e.preventDefault(),this.parentPopup.firstItem.focus())),u)if(s===o)e.preventDefault(),p?this.updateActiveState(p):this.clearActiveState();else if([t,i].includes(o)&&!p){e.preventDefault();var h=o===t?c-1:c+1;t===o&&h<0&&(h=this.lastIndex),i===o&&this.lastIndex<h&&(h=0),this.updateActiveState(this.articleItems[h])}else if(a===o){var m=K(p||d);if(m.length>0){e.preventDefault();var f=m.indexOf(d),v=r(m,1)[0];if(p){var g=l?f-1:f+1,b=g<0||m.length-1<g?p:m[g];this.updateActiveState(b)}else l||this.updateActiveState(v)}}}}],[{key:"getItemParent",value:function(e){var t=e.dataset.childOf,i=document.getElementById(t);return null!==i&&i}},{key:"addHelpText",value:function(){[{id:"group-widget-list-help",text:$("Use up and down arrow keys to explore.","sciencenews")},{id:"group-widget-list-enter-help",text:$("Use right arrow key to move into the list.","sciencenews")},{id:"group-widget-move-back-help",text:$("Use left arrow key to move back to the parent list.","sciencenews")},{id:"group-widget-tab-help",text:$("Use tab key to enter the current list item.","sciencenews")},{id:"group-widget-esc-help",text:$("Use escape to exit the menu.","sciencenews")}].forEach(function(e){var t=e.id,i=e.text;if(null===document.body.querySelector("#".concat(t))){var n=J(t,i);document.body.appendChild(n)}})}}])}(),ee=function(){return c(function e(t){var i=t.element,n=t.children,s=t.options;a(this,e),this.element=i,this.children=n,this.options=s,this.groups=[],this.articleListSupport=!1,this.setupArticleListSupport=this.setupArticleListSupport.bind(this),this.setDropdownPositioning=this.setDropdownPositioning.bind(this),this.init=this.init.bind(this),this.init(),p.lgMin.addListener(this.init)},[{key:"setupArticleListSupport",value:function(){var e=this;this.singlePopups.forEach(function(t){var i=e.options.selectors.articleList,n=t.target.querySelector(i);if(null!==n){var s=new Q(n);e.groups.push(s)}t.firstItem.addEventListener("keydown",function(e){var t=V.UP,i=V.DOWN,s=e.keyCode;[t,i].includes(s)&&(e.preventDefault(),n.focus())})}),this.articleListSupport=!0}},{key:"setDropdownPositioning",value:function(){this.singlePopups.forEach(function(e){e.target.removeAttribute("style"),void 0!==e.observer&&e.observer.disconnect(),e.setExpandedState(!1);var t=e.controller.offsetLeft,i=e.controller.offsetWidth/2,n=window.innerWidth-(t+i);Object.assign(e.target.style,{right:"".concat(n,"px")}),e.observer=new MutationObserver(function(t){t.forEach(function(t){"attributes"===t.type&&"aria-hidden"===t.attributeName&&"false"===e.target.getAttribute("aria-hidden")&&(e.target.clientWidth/2<n?Object.assign(e.target.style,{transform:"translateX(50%)"}):Object.assign(e.target.style,{right:"30px"}))})}),e.observer.observe(e.target,{attributes:!0})})}},{key:"init",value:function(){if(p.lgMin.matches){if(this.topicsMenu instanceof Y||(this.topicsMenu=new Y(this.children.list)),void 0===this.singlePopups){var e=this.children.singleDropdownLists;null!==e&&(this.singlePopups=Array.prototype.reduce.call(e,function(e,t){return t.popup instanceof W&&e.push(t.popup),e},[]))}this.articleListSupport||this.setupArticleListSupport(),this.setDropdownPositioning(),this.resize=new X(window,"resize",this.setDropdownPositioning)}else this.resize instanceof 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t=`${i.containerModifierClass}backface-hidden`,n=e.el.classList.contains(t);c<=i.maxBackfaceHiddenSlides?n||e.el.classList.add(t):n&&e.el.classList.remove(t)}},updateAutoHeight:function(e){const t=this,i=[],n=t.virtual&&t.params.virtual.enabled;let s,r=0;"number"==typeof e?t.setTransition(e):!0===e&&t.setTransition(t.params.speed);const a=e=>n?t.slides[t.getSlideIndexByData(e)]:t.slides[e];if("auto"!==t.params.slidesPerView&&t.params.slidesPerView>1)if(t.params.centeredSlides)(t.visibleSlides||[]).forEach(e=>{i.push(e)});else for(s=0;s<Math.ceil(t.params.slidesPerView);s+=1){const e=t.activeIndex+s;if(e>t.slides.length&&!n)break;i.push(a(e))}else i.push(a(t.activeIndex));for(s=0;s<i.length;s+=1)if(void 0!==i[s]){const e=i[s].offsetHeight;r=e>r?e:r}(r||0===r)&&(t.wrapperEl.style.height=`${r}px`)},updateSlidesOffset:function(){const e=this,t=e.slides,i=e.isElement?e.isHorizontal()?e.wrapperEl.offsetLeft:e.wrapperEl.offsetTop:0;for(let 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dt({swiper:e,runCallbacks:t,direction:i,step:n}){const{activeIndex:s,previousIndex:r}=e;let a=i;a||(a=s>r?"next":s<r?"prev":"reset"),e.emit(`transition${n}`),t&&"reset"===a?e.emit(`slideResetTransition${n}`):t&&s!==r&&(e.emit(`slideChangeTransition${n}`),"next"===a?e.emit(`slideNextTransition${n}`):e.emit(`slidePrevTransition${n}`))}var ct={slideTo:function(e=0,t,i=!0,n,s){"string"==typeof e&&(e=parseInt(e,10));const r=this;let a=e;a<0&&(a=0);const{params:o,snapGrid:l,slidesGrid:d,previousIndex:c,activeIndex:u,rtlTranslate:p,wrapperEl:h,enabled:m}=r;if(!m&&!n&&!s||r.destroyed||r.animating&&o.preventInteractionOnTransition)return!1;void 0===t&&(t=r.params.speed);const f=Math.min(r.params.slidesPerGroupSkip,a);let v=f+Math.floor((a-f)/r.params.slidesPerGroup);v>=l.length&&(v=l.length-1);const g=-l[v];if(o.normalizeSlideIndex)for(let e=0;e<d.length;e+=1){const t=-Math.floor(100*g),i=Math.floor(100*d[e]),n=Math.floor(100*d[e+1]);void 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t=a*s.params.grid.rows;e=s.slides.find(e=>1*e.getAttribute("data-swiper-slide-index")===t).column}else e=s.getSlideIndexByData(a);const t=r?Math.ceil(s.slides.length/s.params.grid.rows):s.slides.length,{centeredSlides:i,slidesOffsetBefore:o,slidesOffsetAfter:l}=s.params,d=i||!!o||!!l;let c=s.params.slidesPerView;"auto"===c?c=s.slidesPerViewDynamic():(c=Math.ceil(parseFloat(s.params.slidesPerView,10)),d&&c%2==0&&(c+=1));let u=t-e<c;if(d&&(u=u||e<Math.ceil(c/2)),n&&d&&"auto"!==s.params.slidesPerView&&!r&&(u=!1),u){const i=d?e<s.activeIndex?"prev":"next":e-s.activeIndex-1<s.params.slidesPerView?"next":"prev";s.loopFix({direction:i,slideTo:!0,activeSlideIndex:"next"===i?e+1:e-t+1,slideRealIndex:"next"===i?s.realIndex:void 0})}if(r){const e=a*s.params.grid.rows;a=s.slides.find(t=>1*t.getAttribute("data-swiper-slide-index")===e).column}else a=s.getSlideIndexByData(a)}return requestAnimationFrame(()=>{s.slideTo(a,t,i,n)}),s},slideNext:function(e,t=!0,i){const 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m=i.isHorizontal()?p:h,f=i.isHorizontal()?r.currentX-r.previousX:r.currentY-r.previousY;s.oneWayMovement&&(m=Math.abs(m)*(a?1:-1),f=Math.abs(f)*(a?1:-1)),r.diff=m,m*=s.touchRatio,a&&(m=-m,f=-f);const v=i.touchesDirection;i.swipeDirection=m>0?"prev":"next",i.touchesDirection=f>0?"prev":"next";const g=i.params.loop&&!s.cssMode,b="next"===i.touchesDirection&&i.allowSlideNext||"prev"===i.touchesDirection&&i.allowSlidePrev;if(!n.isMoved){if(g&&b&&i.loopFix({direction:i.swipeDirection}),n.startTranslate=i.getTranslate(),i.setTransition(0),i.animating){const e=new window.CustomEvent("transitionend",{bubbles:!0,cancelable:!0,detail:{bySwiperTouchMove:!0}});i.wrapperEl.dispatchEvent(e)}n.allowMomentumBounce=!1,!s.grabCursor||!0!==i.allowSlideNext&&!0!==i.allowSlidePrev||i.setGrabCursor(!0),i.emit("sliderFirstMove",d)}if((new Date).getTime(),!1!==s._loopSwapReset&&n.isMoved&&n.allowThresholdMove&&v!==i.touchesDirection&&g&&b&&Math.abs(m)>=1)return Object.assign(r,{startX:c,startY:u,currentX:c,currentY:u,startTranslate:n.currentTranslate}),n.loopSwapReset=!0,void(n.startTranslate=n.currentTranslate);i.emit("sliderMove",d),n.isMoved=!0,n.currentTranslate=m+n.startTranslate;let 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void(n.currentTranslate=n.startTranslate);if(!n.allowThresholdMove)return n.allowThresholdMove=!0,r.startX=r.currentX,r.startY=r.currentY,n.currentTranslate=n.startTranslate,void(r.diff=i.isHorizontal()?r.currentX-r.startX:r.currentY-r.startY)}s.followFinger&&!s.cssMode&&((s.freeMode&&s.freeMode.enabled&&i.freeMode||s.watchSlidesProgress)&&(i.updateActiveIndex(),i.updateSlidesClasses()),s.freeMode&&s.freeMode.enabled&&i.freeMode&&i.freeMode.onTouchMove(),i.updateProgress(n.currentTranslate),i.setTranslate(n.currentTranslate))}function ft(e){const t=this,i=t.touchEventsData;let n,s=e;if(s.originalEvent&&(s=s.originalEvent),"touchend"===s.type||"touchcancel"===s.type){if(n=[...s.changedTouches].find(e=>e.identifier===i.touchId),!n||n.identifier!==i.touchId)return}else{if(null!==i.touchId)return;if(s.pointerId!==i.pointerId)return;n=s}if(["pointercancel","pointerout","pointerleave","contextmenu"].includes(s.type)&&(!["pointercancel","contextmenu"].includes(s.type)||!t.browser.isSafari&&!t.browser.isWebView))return;i.pointerId=null,i.touchId=null;const{params:r,touches:a,rtlTranslate:o,slidesGrid:l,enabled:d}=t;if(!d)return;if(!r.simulateTouch&&"mouse"===s.pointerType)return;if(i.allowTouchCallbacks&&t.emit("touchEnd",s),i.allowTouchCallbacks=!1,!i.isTouched)return i.isMoved&&r.grabCursor&&t.setGrabCursor(!1),i.isMoved=!1,void(i.startMoving=!1);r.grabCursor&&i.isMoved&&i.isTouched&&(!0===t.allowSlideNext||!0===t.allowSlidePrev)&&t.setGrabCursor(!1);const c=Be(),u=c-i.touchStartTime;if(t.allowClick){const 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v=null,g=null;r.rewind&&(t.isBeginning?g=r.virtual&&r.virtual.enabled&&t.virtual?t.virtual.slides.length-1:t.slides.length-1:t.isEnd&&(v=0));const b=(p-l[m])/f,y=m<r.slidesPerGroupSkip-1?1:r.slidesPerGroup;if(u>r.longSwipesMs){if(!r.longSwipes)return void t.slideTo(t.activeIndex);"next"===t.swipeDirection&&(b>=r.longSwipesRatio?t.slideTo(r.rewind&&t.isEnd?v:m+y):t.slideTo(m)),"prev"===t.swipeDirection&&(b>1-r.longSwipesRatio?t.slideTo(m+y):null!==g&&b<0&&Math.abs(b)>r.longSwipesRatio?t.slideTo(g):t.slideTo(m))}else{if(!r.shortSwipes)return void t.slideTo(t.activeIndex);!t.navigation||s.target!==t.navigation.nextEl&&s.target!==t.navigation.prevEl?("next"===t.swipeDirection&&t.slideTo(null!==v?v:m+y),"prev"===t.swipeDirection&&t.slideTo(null!==g?g:m)):s.target===t.navigation.nextEl?t.slideTo(m+y):t.slideTo(m)}}function vt(){const e=this,{params:t,el:i}=e;if(i&&0===i.offsetWidth)return;t.breakpoints&&e.setBreakpoint();const{allowSlideNext:n,allowSlidePrev:s,snapGrid:r}=e,a=e.virtual&&e.params.virtual.enabled;e.allowSlideNext=!0,e.allowSlidePrev=!0,e.updateSize(),e.updateSlides(),e.updateSlidesClasses();const o=a&&t.loop;!("auto"===t.slidesPerView||t.slidesPerView>1)||!e.isEnd||e.isBeginning||e.params.centeredSlides||o?e.params.loop&&!a?e.slideToLoop(e.realIndex,0,!1,!0):e.slideTo(e.activeIndex,0,!1,!0):e.slideTo(e.slides.length-1,0,!1,!0),e.autoplay&&e.autoplay.running&&e.autoplay.paused&&(clearTimeout(e.autoplay.resizeTimeout),e.autoplay.resizeTimeout=setTimeout(()=>{e.autoplay&&e.autoplay.running&&e.autoplay.paused&&e.autoplay.resume()},500)),e.allowSlidePrev=s,e.allowSlideNext=n,e.params.watchOverflow&&r!==e.snapGrid&&e.checkOverflow()}function gt(e){const t=this;t.enabled&&(t.allowClick||(t.params.preventClicks&&e.preventDefault(),t.params.preventClicksPropagation&&t.animating&&(e.stopPropagation(),e.stopImmediatePropagation())))}function bt(){const e=this,{wrapperEl:t,rtlTranslate:i,enabled:n}=e;if(!n)return;let s;e.previousTranslate=e.translate,e.isHorizontal()?e.translate=-t.scrollLeft:e.translate=-t.scrollTop,0===e.translate&&(e.translate=0),e.updateActiveIndex(),e.updateSlidesClasses();const r=e.maxTranslate()-e.minTranslate();s=0===r?0:(e.translate-e.minTranslate())/r,s!==e.progress&&e.updateProgress(i?-e.translate:e.translate),e.emit("setTranslate",e.translate,!1)}function yt(e){const t=this;rt(t,e.target),t.params.cssMode||"auto"!==t.params.slidesPerView&&!t.params.autoHeight||t.update()}function wt(){const e=this;e.documentTouchHandlerProceeded||(e.documentTouchHandlerProceeded=!0,e.params.touchReleaseOnEdges&&(e.el.style.touchAction="auto"))}const St=(e,t)=>{const 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Tt(e,t){return function(i={}){const n=Object.keys(i)[0],s=i[n];"object"==typeof s&&null!==s?(!0===e[n]&&(e[n]={enabled:!0}),"navigation"===n&&e[n]&&e[n].enabled&&!e[n].prevEl&&!e[n].nextEl&&(e[n].auto=!0),["pagination","scrollbar"].indexOf(n)>=0&&e[n]&&e[n].enabled&&!e[n].el&&(e[n].auto=!0),n in e&&"enabled"in s?("object"!=typeof e[n]||"enabled"in e[n]||(e[n].enabled=!0),e[n]||(e[n]={enabled:!1}),Fe(t,i)):Fe(t,i)):Fe(t,i)}}const kt={eventsEmitter:it,update:lt,translate:{getTranslate:function(e=(this.isHorizontal()?"x":"y")){const{params:t,rtlTranslate:i,translate:n,wrapperEl:s}=this;if(t.virtualTranslate)return i?-n:n;if(t.cssMode)return n;let r=function(e,t="x"){const i=Pe();let n,s,r;const a=function(e){const t=Pe();let i;return t.getComputedStyle&&(i=t.getComputedStyle(e,null)),!i&&e.currentStyle&&(i=e.currentStyle),i||(i=e.style),i}(e);return i.WebKitCSSMatrix?(s=a.transform||a.webkitTransform,s.split(",").length>6&&(s=s.split(", ").map(e=>e.replace(",",".")).join(", ")),r=new i.WebKitCSSMatrix("none"===s?"":s)):(r=a.MozTransform||a.OTransform||a.MsTransform||a.msTransform||a.transform||a.getPropertyValue("transform").replace("translate(","matrix(1, 0, 0, 1,"),n=r.toString().split(",")),"x"===t&&(s=i.WebKitCSSMatrix?r.m41:16===n.length?parseFloat(n[12]):parseFloat(n[4])),"y"===t&&(s=i.WebKitCSSMatrix?r.m42:16===n.length?parseFloat(n[13]):parseFloat(n[5])),s||0}(s,e);return r+=this.cssOverflowAdjustment(),i&&(r=-r),r||0},setTranslate:function(e,t){const i=this,{rtlTranslate:n,params:s,wrapperEl:r,progress:a}=i;let o,l=0,d=0;i.isHorizontal()?l=n?-e:e:d=e,s.roundLengths&&(l=Math.floor(l),d=Math.floor(d)),i.previousTranslate=i.translate,i.translate=i.isHorizontal()?l:d,s.cssMode?r[i.isHorizontal()?"scrollLeft":"scrollTop"]=i.isHorizontal()?-l:-d:s.virtualTranslate||(i.isHorizontal()?l-=i.cssOverflowAdjustment():d-=i.cssOverflowAdjustment(),r.style.transform=`translate3d(${l}px, ${d}px, 0px)`);const c=i.maxTranslate()-i.minTranslate();o=0===c?0:(e-i.minTranslate())/c,o!==a&&i.updateProgress(e),i.emit("setTranslate",i.translate,t)},minTranslate:function(){return-this.snapGrid[0]},maxTranslate:function(){return-this.snapGrid[this.snapGrid.length-1]},translateTo:function(e=0,t=this.params.speed,i=!0,n=!0,s){const r=this,{params:a,wrapperEl:o}=r;if(r.animating&&a.preventInteractionOnTransition)return!1;const l=r.minTranslate(),d=r.maxTranslate();let c;if(c=n&&e>l?l:n&&e<d?d:e,r.updateProgress(c),a.cssMode){const e=r.isHorizontal();if(0===t)o[e?"scrollLeft":"scrollTop"]=-c;else{if(!r.support.smoothScroll)return je({swiper:r,targetPosition:-c,side:e?"left":"top"}),!0;o.scrollTo({[e?"left":"top"]:-c,behavior:"smooth"})}return!0}return 0===t?(r.setTransition(0),r.setTranslate(c),i&&(r.emit("beforeTransitionStart",t,s),r.emit("transitionEnd"))):(r.setTransition(t),r.setTranslate(c),i&&(r.emit("beforeTransitionStart",t,s),r.emit("transitionStart")),r.animating||(r.animating=!0,r.onTranslateToWrapperTransitionEnd||(r.onTranslateToWrapperTransitionEnd=function(e){r&&!r.destroyed&&e.target===this&&(r.wrapperEl.removeEventListener("transitionend",r.onTranslateToWrapperTransitionEnd),r.onTranslateToWrapperTransitionEnd=null,delete r.onTranslateToWrapperTransitionEnd,r.animating=!1,i&&r.emit("transitionEnd"))}),r.wrapperEl.addEventListener("transitionend",r.onTranslateToWrapperTransitionEnd))),!0}},transition:{setTransition:function(e,t){const i=this;i.params.cssMode||(i.wrapperEl.style.transitionDuration=`${e}ms`,i.wrapperEl.style.transitionDelay=0===e?"0ms":""),i.emit("setTransition",e,t)},transitionStart:function(e=!0,t){const i=this,{params:n}=i;n.cssMode||(n.autoHeight&&i.updateAutoHeight(),dt({swiper:i,runCallbacks:e,direction:t,step:"Start"}))},transitionEnd:function(e=!0,t){const i=this,{params:n}=i;i.animating=!1,n.cssMode||(i.setTransition(0),dt({swiper:i,runCallbacks:e,direction:t,step:"End"}))}},slide:ct,loop:ut,grabCursor:{setGrabCursor:function(e){const t=this;if(!t.params.simulateTouch||t.params.watchOverflow&&t.isLocked||t.params.cssMode)return;const i="container"===t.params.touchEventsTarget?t.el:t.wrapperEl;t.isElement&&(t.__preventObserver__=!0),i.style.cursor="move",i.style.cursor=e?"grabbing":"grab",t.isElement&&requestAnimationFrame(()=>{t.__preventObserver__=!1})},unsetGrabCursor:function(){const e=this;e.params.watchOverflow&&e.isLocked||e.params.cssMode||(e.isElement&&(e.__preventObserver__=!0),e["container"===e.params.touchEventsTarget?"el":"wrapperEl"].style.cursor="",e.isElement&&requestAnimationFrame(()=>{e.__preventObserver__=!1}))}},events:{attachEvents:function(){const e=this,{params:t}=e;e.onTouchStart=ht.bind(e),e.onTouchMove=mt.bind(e),e.onTouchEnd=ft.bind(e),e.onDocumentTouchStart=wt.bind(e),t.cssMode&&(e.onScroll=bt.bind(e)),e.onClick=gt.bind(e),e.onLoad=yt.bind(e),St(e,"on")},detachEvents:function(){St(this,"off")}},breakpoints:{setBreakpoint:function(){const e=this,{realIndex:t,initialized:i,params:n,el:s}=e,r=n.breakpoints;if(!r||r&&0===Object.keys(r).length)return;const a=Ae(),o="window"!==n.breakpointsBase&&n.breakpointsBase?"container":n.breakpointsBase,l=["window","container"].includes(n.breakpointsBase)||!n.breakpointsBase?e.el:a.querySelector(n.breakpointsBase),d=e.getBreakpoint(r,o,l);if(!d||e.currentBreakpoint===d)return;const c=(d in r?r[d]:void 0)||e.originalParams,u=Et(e,n),p=Et(e,c),h=e.params.grabCursor,m=c.grabCursor,f=n.enabled;u&&!p?(s.classList.remove(`${n.containerModifierClass}grid`,`${n.containerModifierClass}grid-column`),e.emitContainerClasses()):!u&&p&&(s.classList.add(`${n.containerModifierClass}grid`),(c.grid.fill&&"column"===c.grid.fill||!c.grid.fill&&"column"===n.grid.fill)&&s.classList.add(`${n.containerModifierClass}grid-column`),e.emitContainerClasses()),h&&!m?e.unsetGrabCursor():!h&&m&&e.setGrabCursor(),["navigation","pagination","scrollbar"].forEach(t=>{if(void 0===c[t])return;const i=n[t]&&n[t].enabled,s=c[t]&&c[t].enabled;i&&!s&&e[t].disable(),!i&&s&&e[t].enable()});const v=c.direction&&c.direction!==n.direction,g=n.loop&&(c.slidesPerView!==n.slidesPerView||v),b=n.loop;v&&i&&e.changeDirection(),Fe(e.params,c);const y=e.params.enabled,w=e.params.loop;Object.assign(e,{allowTouchMove:e.params.allowTouchMove,allowSlideNext:e.params.allowSlideNext,allowSlidePrev:e.params.allowSlidePrev}),f&&!y?e.disable():!f&&y&&e.enable(),e.currentBreakpoint=d,e.emit("_beforeBreakpoint",c),i&&(g?(e.loopDestroy(),e.loopCreate(t),e.updateSlides()):!b&&w?(e.loopCreate(t),e.updateSlides()):b&&!w&&e.loopDestroy()),e.emit("breakpoint",c)},getBreakpoint:function(e,t="window",i){if(!e||"container"===t&&!i)return;let n=!1;const s=Pe(),r="window"===t?s.innerHeight:i.clientHeight,a=Object.keys(e).map(e=>{if("string"==typeof e&&0===e.indexOf("@")){const t=parseFloat(e.substr(1));return{value:r*t,point:e}}return{value:e,point:e}});a.sort((e,t)=>parseInt(e.value,10)-parseInt(t.value,10));for(let e=0;e<a.length;e+=1){const{point:r,value:o}=a[e];"window"===t?s.matchMedia(`(min-width: ${o}px)`).matches&&(n=r):o<=i.clientWidth&&(n=r)}return n||"max"}},checkOverflow:{checkOverflow:function(){const e=this,{isLocked:t,params:i}=e,{slidesOffsetBefore:n}=i;if(n){const t=e.slides.length-1,i=e.slidesGrid[t]+e.slidesSizesGrid[t]+2*n;e.isLocked=e.size>i}else e.isLocked=1===e.snapGrid.length;!0===i.allowSlideNext&&(e.allowSlideNext=!e.isLocked),!0===i.allowSlidePrev&&(e.allowSlidePrev=!e.isLocked),t&&t!==e.isLocked&&(e.isEnd=!1),t!==e.isLocked&&e.emit(e.isLocked?"lock":"unlock")}},classes:{addClasses:function(){const e=this,{classNames:t,params:i,rtl:n,el:s,device:r}=e,a=function(e,t){const i=[];return e.forEach(e=>{"object"==typeof e?Object.keys(e).forEach(n=>{e[n]&&i.push(t+n)}):"string"==typeof e&&i.push(t+e)}),i}(["initialized",i.direction,{"free-mode":e.params.freeMode&&i.freeMode.enabled},{autoheight:i.autoHeight},{rtl:n},{grid:i.grid&&i.grid.rows>1},{"grid-column":i.grid&&i.grid.rows>1&&"column"===i.grid.fill},{android:r.android},{ios:r.ios},{"css-mode":i.cssMode},{centered:i.cssMode&&i.centeredSlides},{"watch-progress":i.watchSlidesProgress}],i.containerModifierClass);t.push(...a),s.classList.add(...t),e.emitContainerClasses()},removeClasses:function(){const{el:e,classNames:t}=this;e&&"string"!=typeof e&&(e.classList.remove(...t),this.emitContainerClasses())}}},Ct={};class Mt{constructor(...e){let t,i;1===e.length&&e[0].constructor&&"Object"===Object.prototype.toString.call(e[0]).slice(8,-1)?i=e[0]:[t,i]=e,i||(i={}),i=Fe({},i),t&&!i.el&&(i.el=t);const n=Ae();if(i.el&&"string"==typeof i.el&&n.querySelectorAll(i.el).length>1){const e=[];return n.querySelectorAll(i.el).forEach(t=>{const n=Fe({},i,{el:t});e.push(new Mt(n))}),e}const s=this;s.__swiper__=!0,s.support=Qe(),s.device=et({userAgent:i.userAgent}),s.browser=tt(),s.eventsListeners={},s.eventsAnyListeners=[],s.modules=[...s.__modules__],i.modules&&Array.isArray(i.modules)&&i.modules.forEach(e=>{"function"==typeof e&&s.modules.indexOf(e)<0&&s.modules.push(e)});const r={};s.modules.forEach(e=>{e({params:i,swiper:s,extendParams:Tt(i,r),on:s.on.bind(s),once:s.once.bind(s),off:s.off.bind(s),emit:s.emit.bind(s)})});const a=Fe({},xt,r);return s.params=Fe({},a,Ct,i),s.originalParams=Fe({},s.params),s.passedParams=Fe({},i),s.params&&s.params.on&&Object.keys(s.params.on).forEach(e=>{s.on(e,s.params.on[e])}),s.params&&s.params.onAny&&s.onAny(s.params.onAny),Object.assign(s,{enabled:s.params.enabled,el:t,classNames:[],slides:[],slidesGrid:[],snapGrid:[],slidesSizesGrid:[],isHorizontal:()=>"horizontal"===s.params.direction,isVertical:()=>"vertical"===s.params.direction,activeIndex:0,realIndex:0,isBeginning:!0,isEnd:!1,translate:0,previousTranslate:0,progress:0,velocity:0,animating:!1,cssOverflowAdjustment(){return Math.trunc(this.translate/2**23)*2**23},allowSlideNext:s.params.allowSlideNext,allowSlidePrev:s.params.allowSlidePrev,touchEventsData:{isTouched:void 0,isMoved:void 0,allowTouchCallbacks:void 0,touchStartTime:void 0,isScrolling:void 0,currentTranslate:void 0,startTranslate:void 0,allowThresholdMove:void 0,focusableElements:s.params.focusableElements,lastClickTime:0,clickTimeout:void 0,velocities:[],allowMomentumBounce:void 0,startMoving:void 0,pointerId:null,touchId:null},allowClick:!0,allowTouchMove:s.params.allowTouchMove,touches:{startX:0,startY:0,currentX:0,currentY:0,diff:0},imagesToLoad:[],imagesLoaded:0}),s.emit("_swiper"),s.params.init&&s.init(),s}getDirectionLabel(e){return this.isHorizontal()?e:{width:"height","margin-top":"margin-left","margin-bottom ":"margin-right","margin-left":"margin-top","margin-right":"margin-bottom","padding-left":"padding-top","padding-right":"padding-bottom",marginRight:"marginBottom"}[e]}getSlideIndex(e){const{slidesEl:t,params:i}=this,n=$e(Ne(t,`.${i.slideClass}, swiper-slide`)[0]);return $e(e)-n}getSlideIndexByData(e){return this.getSlideIndex(this.slides.find(t=>1*t.getAttribute("data-swiper-slide-index")===e))}getSlideIndexWhenGrid(e){return 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t=this.state.expanded;this.controller.popup=this,this.target.popup=this,this.controller.setAttribute("aria-haspopup","menu"),this.controller.setAttribute("aria-expanded","".concat(t)),this.controller.setAttribute("aria-controls",this.target.id),this.target!==this.controller.nextElementSibling&&this.controller.setAttribute("aria-owns",this.target.id),this.target.setAttribute("aria-hidden","".concat(!t)),this.controller.addEventListener("click",this.manageExpandedState),this.controller.addEventListener("keydown",this.controllerKeyDownHandler),this.target.addEventListener("keydown",this.targetKeyDownHandler),document.body.addEventListener("click",this.closeOnOutsideClick)}},{key:"destroy",value:function(){this.controller.popup=null,this.target.popup=null,this.controller.removeAttribute("aria-haspopup"),this.controller.removeAttribute("aria-expanded"),this.controller.removeAttribute("aria-controls"),this.target!==this.controller.nextElementSibling&&this.controller.removeAttribute("aria-owns"),this.target.removeAttribute("aria-hidden"),this.controller.removeEventListener("click",this.manageExpandedState),this.controller.removeEventListener("keydown",this.controllerKeyDownHandler),this.target.removeEventListener("keydown",this.targetKeyDownHandler),document.body.removeEventListener("click",this.closeOnOutsideClick),this.state={expanded:!1}}},{key:"controllerKeyDownHandler",value:function(t){if(this.state.expanded){var 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function(t){if(Array.isArray(t))return i(t)}(t)||function(t){if("undefined"!=typeof Symbol&&null!=t[Symbol.iterator]||null!=t["@@iterator"])return Array.from(t)}(t)||r(t)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()}var G=function(){function t(e){o(this,t),this.stringDescription="MenuItem",this.list=e,Object.assign(e,{menuItem:this}),this.listItems=Array.prototype.slice.call(e.children),this.handleListKeydown=this.handleListKeydown.bind(this),this.destroy=this.destroy.bind(this),this.init()}return c(t,[{key:Symbol.toStringTag,get:function(){return this.stringDescription}},{key:"init",value:function(){var e=this;this.menuItems=this.listItems.reduce(function(t,e){var n=e.firstElementChild;return 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e=t.keyCode,n=N.UP,i=N.DOWN,r=N.LEFT,s=N.RIGHT,o=document.activeElement,a=this.list.contains(o)?o:this.menuItems[0],l=this.menuItems.length-1,c=this.menuItems.indexOf(a);if([n,i].includes(e)){t.stopPropagation(),t.preventDefault();var u=e===n?c-1:c+1;n===e&&u<0&&(u=l),i===e&&l<u&&(u=0),this.menuItems[u].focus()}else if(s===e){var h=this.constructor.nextElementIsUl(a);h&&Object.hasOwnProperty.call(h,"menuItem")&&(t.stopPropagation(),t.preventDefault(),h.menuItem.firstItem.focus())}else if(r===e&&void 0!==this.previousSibling){var d;if(t.stopPropagation(),t.preventDefault(),"[object Popup]"===(null===(d=this.previousSibling)||void 0===d||null===(d=d.popup)||void 0===d?void 0:d.toString())){t.stopPropagation(),t.preventDefault();var p=this.previousSibling.popup;p.state.expanded&&p.setExpandedState(!1)}this.previousSibling.focus()}}},{key:"destroy",value:function(){var t=this;void 0!==this.list.menuItem&&(this.list.menuItem=null,this.menuItems.forEach(function(e){var n;e.removeEventListener("keydown",t.handleListKeydown);var i=t.constructor.nextElementIsUl(e);i&&void 0!==i.menuItem&&"[object MenuItem]"===(null==i||null===(n=i.menuItem)||void 0===n?void 0:n.toString())&&i.menuItem.destroy()}))}}],[{key:"nextElementIsUl",value:function(t){var e=t.nextElementSibling;return null!==e&&"UL"===e.nodeName&&e}}])}(),z=function(){return a(function t(e){i(this,t),this.stringDescription="Menu",this.menu=e,this.popups=[],U({"":{}},"sciencenews"),this.manageState=this.manageState.bind(this),this.handleMenuBarKeydown=this.handleMenuBarKeydown.bind(this),this.handleMenuBarClick=this.handleMenuBarClick.bind(this),this.destroy=this.destroy.bind(this),this.init()},[{key:Symbol.toStringTag,get:function(){return this.stringDescription}},{key:"manageState",value:function(t){this.state=Object.assign(this.state,t),Object.prototype.hasOwnProperty.call(t,"activeDescendant")&&this.state.activeDescendant.focus()}},{key:"init",value:function(){var t=this;this.menu.menu=this,this.menuItemsCollection=this.menu.children,this.menuItemsArray=Array.prototype.slice.call(this.menuItemsCollection),this.menuBarItems=this.menuItemsArray.reduce(function(t,e){var n=e.firstElementChild;return null!==n&&"A"===n.nodeName?[].concat(f(t),[n]):t},[]),this.menuLength=this.menuBarItems.length,this.menuBarItems.forEach(function(e){e.addEventListener("keydown",t.handleMenuBarKeydown),e.addEventListener("click",t.handleMenuBarClick)}),this.lastIndex=this.menuLength-1;var e=u(this.menuBarItems,1);this.firstItem=e[0],this.lastItem=this.menuBarItems[this.lastIndex],this.state={activeDescendant:this.firstItem},this.popups=this.menuBarItems.reduce(function(e,n){var i=n.nextElementSibling;if(null!==i&&"UL"===i.nodeName){var r=new H({controller:n,target:i});return i.addEventListener("keydown",t.handleListKeydown),new W(i).previousSibling=n,[].concat(f(e),[r])}return e},[])}},{key:"handleMenuBarKeydown",value:function(t){var e=N.LEFT,n=N.RIGHT,i=N.DOWN,r=t.keyCode,s=this.state.activeDescendant,o=this.menuBarItems.indexOf(s);if([e,n].includes(r)){t.stopPropagation(),t.preventDefault();var a=r===e?o-1:o+1;e===r&&a<0&&(a=this.lastIndex),n===r&&this.lastIndex<a&&(a=0),this.manageState({activeDescendant:this.menuBarItems[a]})}else if(i===r){var l;if("[object Popup]"===(null==s||null===(l=s.popup)||void 0===l?void 0:l.toString())){t.stopPropagation(),t.preventDefault();var c=s.popup;c.state.expanded||c.setExpandedState(!0),c.firstItem.focus()}}}},{key:"handleMenuBarClick",value:function(t){this.manageState({activeDescendant:t.target})}},{key:"destroy",value:function(){var t=this;this.menuItemsCollection=this.menu.children,this.menuItemsArray=Array.prototype.slice.call(this.menuItemsCollection),this.menuBarItems.forEach(function(e){e.removeEventListener("keydown",t.handleMenuBarKeydown),e.removeEventListener("click",t.handleMenuBarClick)}),this.popups.length>0&&this.popups.forEach(function(t){var e;void 0!==t.target.menuItem&&"[object MenuItem]"===(null==t||null===(e=t.target)||void 0===e||null===(e=e.menuItem)||void 0===e?void 0:e.toString())&&t.target.menuItem.destroy(),t.destroy()})}}])}(),$=function(){return a(function t(e,n,r){var s=arguments.length>3&&void 0!==arguments[3]?arguments[3]:250;i(this,t),Object.assign(this,{callback:r,event:n,element:e,frequency:s,timeout:!1}),this.requestTick=this.requestTick.bind(this),this.update=this.update.bind(this),this.callback?this.element.addEventListener(this.event,this.requestTick):console.error("Throttle error: you must specify a callback.")},[{key:"update",value:function(){this.callback(),window.clearTimeout(this.timeout),this.timeout=!1}},{key:"requestTick",value:function(){var t=this;this.timeout||(this.timeout=window.setTimeout(function(){window.requestAnimationFrame(t.update)},this.frequency))}},{key:"destroy",value:function(){this.element.removeEventListener(this.event,this.requestTick)}}])}();function X(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:36,e=u(Math.random().toString(t).split("."),2)[1];return"id_".concat(e)}function Y(t,e){var n=document.createElement("span");return n.classList.add("screen-reader-text"),Object.assign(n,{id:t,innerText:e}),n}var G=function(){return a(function t(e){i(this,t),this.list=e,this.articleItems=Array.prototype.slice.call(e.children),U({"":{}},"sciencenews"),Object.assign(this,{firstItem:this.articleItems[0]}),this.lastIndex=this.articleItems.length-1,this.state={activeDescendant:this.firstItem},this.prepItems=this.prepItems.bind(this),this.updateActiveState=this.updateActiveState.bind(this),this.clearActiveState=this.clearActiveState.bind(this),this.getParentPopup=this.getParentPopup.bind(this),this.handleListBlur=this.handleListBlur.bind(this),this.handleListKeydown=this.handleListKeydown.bind(this),this.parentPopup=this.getParentPopup(),this.prepItems(),this.init()},[{key:"getParentPopup",value:function(){for(var t=this.list.parentElement;"[object Popup]"!==(null===(e=t)||void 0===e||null===(e=e.popup)||void 0===e?void 0:e.toString());){var e;t=t.parentElement}return t.popup}},{key:"prepItems",value:function(){this.articleItems.forEach(function(t){var e=q(t);""===t.id&&t.setAttribute("id",X()),e.forEach(function(e){e.setAttribute("id",X()),e.setAttribute("data-child-of",t.id)})})}},{key:"updateActiveState",value:function(t){this.state.activeDescendant.removeAttribute("aria-selected"),this.state.activeDescendant=t,this.list.setAttribute("aria-activedescendant",t.id),t.setAttribute("aria-selected","true")}},{key:"clearActiveState",value:function(){var t=this.state.activeDescendant;this.list.removeAttribute("aria-activedescendant"),t.removeAttribute("aria-selected"),this.state.activeDescendant=this.firstItem,this.list.setAttribute("aria-describedby",this.initialListDescribedby)}},{key:"init",value:function(){this.list.setAttribute("role","group"),this.list.setAttribute("tabindex","0"),this.initialListDescribedby="group-widget-list-help group-widget-list-enter-help group-widget-esc-help",this.activeListDescribedby="group-widget-list-help group-widget-move-back-help group-widget-tab-help group-widget-esc-help",this.constructor.addHelpText(),this.list.setAttribute("aria-describedby",this.initialListDescribedby),this.list.addEventListener("blur",this.handleListBlur),this.list.addEventListener("keydown",this.handleListKeydown)}},{key:"handleListBlur",value:function(){this.list.contains(document.activeElement)||this.clearActiveState()}},{key:"handleListKeydown",value:function(t){var e=N.UP,n=N.DOWN,i=N.RIGHT,r=N.LEFT,s=N.TAB,o=t.keyCode,a=t.shiftKey,l=this.state.activeDescendant,c=this.articleItems.indexOf(l),h=this.list.hasAttribute("aria-activedescendant"),d=this.constructor.getItemParent(l);if(h||(i===o?(t.preventDefault(),this.updateActiveState(this.firstItem),this.list.setAttribute("aria-describedby",this.activeListDescribedby)):r===o?(t.preventDefault(),this.parentPopup.setExpandedState(!1),this.parentPopup.controller.focus()):[e,n].includes(o)&&(t.preventDefault(),this.parentPopup.firstItem.focus())),h)if(r===o)t.preventDefault(),d?this.updateActiveState(d):this.clearActiveState();else if([e,n].includes(o)&&!d){t.preventDefault();var p=o===e?c-1:c+1;e===o&&p<0&&(p=this.lastIndex),n===o&&this.lastIndex<p&&(p=0),this.updateActiveState(this.articleItems[p])}else if(s===o){var f=q(d||l);if(f.length>0){t.preventDefault();var m=f.indexOf(l),v=u(f,1)[0];if(d){var y=a?m-1:m+1,b=y<0||f.length-1<y?d:f[y];this.updateActiveState(b)}else a||this.updateActiveState(v)}}}}],[{key:"getItemParent",value:function(t){var e=t.dataset.childOf,n=document.getElementById(e);return null!==n&&n}},{key:"addHelpText",value:function(){[{id:"group-widget-list-help",text:R("Use up and down arrow keys to explore.","sciencenews")},{id:"group-widget-list-enter-help",text:R("Use right arrow key to move into the list.","sciencenews")},{id:"group-widget-move-back-help",text:R("Use left arrow key to move back to the parent list.","sciencenews")},{id:"group-widget-tab-help",text:R("Use tab key to enter the current list item.","sciencenews")},{id:"group-widget-esc-help",text:R("Use escape to exit the menu.","sciencenews")}].forEach(function(t){var e=t.id,n=t.text;if(null===document.body.querySelector("#".concat(e))){var i=Y(e,n);document.body.appendChild(i)}})}}])}(),Z=function(){return a(function t(e){var n=e.element,r=e.children,s=e.options;i(this,t),this.element=n,this.children=r,this.options=s,this.groups=[],this.articleListSupport=!1,this.setupArticleListSupport=this.setupArticleListSupport.bind(this),this.setDropdownPositioning=this.setDropdownPositioning.bind(this),this.init=this.init.bind(this),this.init(),d.lgMin.addListener(this.init)},[{key:"setupArticleListSupport",value:function(){var t=this;this.singlePopups.forEach(function(e){var n=t.options.selectors.articleList,i=e.target.querySelector(n);if(null!==i){var r=new G(i);t.groups.push(r)}e.firstItem.addEventListener("keydown",function(t){var e=N.UP,n=N.DOWN,r=t.keyCode;[e,n].includes(r)&&(t.preventDefault(),i.focus())})}),this.articleListSupport=!0}},{key:"setDropdownPositioning",value:function(){this.singlePopups.forEach(function(t){t.target.removeAttribute("style"),void 0!==t.observer&&t.observer.disconnect(),t.setExpandedState(!1);var e=t.controller.offsetLeft,n=t.controller.offsetWidth/2,i=window.innerWidth-(e+n);Object.assign(t.target.style,{right:"".concat(i,"px")}),t.observer=new MutationObserver(function(e){e.forEach(function(e){"attributes"===e.type&&"aria-hidden"===e.attributeName&&"false"===t.target.getAttribute("aria-hidden")&&(t.target.clientWidth/2<i?Object.assign(t.target.style,{transform:"translateX(50%)"}):Object.assign(t.target.style,{right:"30px"}))})}),t.observer.observe(t.target,{attributes:!0})})}},{key:"init",value:function(){if(d.lgMin.matches){if(this.topicsMenu instanceof z||(this.topicsMenu=new z(this.children.list)),void 0===this.singlePopups){var t=this.children.singleDropdownLists;null!==t&&(this.singlePopups=Array.prototype.reduce.call(t,function(t,e){return e.popup instanceof H&&t.push(e.popup),t},[]))}this.articleListSupport||this.setupArticleListSupport(),this.setDropdownPositioning(),this.resize=new $(window,"resize",this.setDropdownPositioning)}else this.resize instanceof $&&this.resize.destroy()}}],[{key:"handleTopicLeadKeydown",value:function(t,e){var n=N.UP,i=N.DOWN,r=t.keyCode;[n,i].includes(r)&&(t.preventDefault(),e.focus())}}])}(),J=p(sciencenewsClassnames["topics-megamenu"]),Q=p(sciencenewsClassnames["dropdown-single-topic"]);e({name:"topics-menu",component:Z,querySelector:{list:J.list},querySelectorAll:{singleDropdownLists:"".concat(Q.dropdown)},options:{selectors:{articleList:Q.articleList}}});var V=function(){return a(function t(e){i(this,t),this.stringDescription="Disclosure",Object.assign(this,{controller:null,target:null,loadOpen:!1,allowOutsideClick:!0,onOpen:function(){},onClose:function(){}},e),this.state={expanded:this.loadOpen},this.interactiveChildElements=q(this.target),this.setup=this.setup.bind(this),this.destroy=this.destroy.bind(this),this.toggleExpandedState=this.toggleExpandedState.bind(this),this.setExpandedState=this.setExpandedState.bind(this),this.rovingTabIndex=this.rovingTabIndex.bind(this),this.closeOnOutsideClick=this.closeOnOutsideClick.bind(this),this.setup(),this.rovingTabIndex(!1)},[{key:"setExpandedState",value:function(t){this.controller.setAttribute("aria-expanded","".concat(t)),this.target.setAttribute("aria-hidden","".concat(!t)),this.rovingTabIndex(t),this.state.expanded=t,t?this.onOpen.call(this):this.onClose.call(this)}},{key:Symbol.toStringTag,get:function(){return this.stringDescription}},{key:"setup",value:function(){var t=this.state.expanded;[this.controller,this.target].forEach(function(t){""===t.id&&t.setAttribute("id",X())}),this.controller.disclosure=this,this.target.disclosure=this,this.controller.setAttribute("aria-expanded","".concat(t)),this.controller.setAttribute("aria-controls",this.target.id),this.target!==this.controller.nextElementSibling&&this.controller.setAttribute("aria-owns",this.target.id),this.target.setAttribute("aria-hidden","".concat(!t)),this.controller.addEventListener("click",this.toggleExpandedState),this.allowOutsideClick||document.body.addEventListener("click",this.closeOnOutsideClick)}},{key:"destroy",value:function(){this.controller.disclosure=null,this.target.disclosure=null,this.controller.removeAttribute("aria-expanded"),this.controller.removeAttribute("aria-controls"),this.controller.removeAttribute("aria-owns"),this.target.removeAttribute("aria-hidden"),this.controller.removeEventListener("click",this.toggleExpandedState),document.body.removeEventListener("click",this.closeOnOutsideClick),this.state={expanded:this.loadOpen}}},{key:"toggleExpandedState",value:function(t){t.preventDefault(),this.state.expanded?this.setExpandedState(!1):this.setExpandedState(!0)}},{key:"closeOnOutsideClick",value:function(t){this.state.expanded&&t.target!==this.controller&&!this.target.contains(t.target)&&this.setExpandedState(!1)}},{key:"rovingTabIndex",value:function(t){this.interactiveChildElements.forEach(function(e){t?e.removeAttribute("tabindex"):e.setAttribute("tabindex","-1")})}}])}();function tt(t,e){var n=t.split("-").map(function(t,e){return 0===e?t:t.charAt(0).toUpperCase()+t.slice(1)}).join(""),i=p(sciencenewsClassnames[e]);return void 0!==i[n]&&i[n]}function et(t,e){var n=arguments.length>2&&void 0!==arguments[2]&&arguments[2],i=tt(t,e);return i?n?document.querySelectorAll(i):document.querySelector(i):null}var nt=function(){return a(function t(e){var n=e.element,r=e.children,s=e.options;i(this,t),this.element=n,this.children=r,this.options=s,U({"":{}},"sciencenews"),this.moveComponent=this.moveComponent.bind(this),this.updateControllerText=this.updateControllerText.bind(this),this.navBarWrapper=et("wrapper","nav-bar"),this.navBar=et("nav-bar","nav-bar"),this.actionsList=et("actions","nav-bar"),this.moveComponent(),d.lgMin.addListener(this.moveComponent),this.init(),this.updateControllerText()},[{key:"moveComponent",value:function(){var t=this.children.controller;if(null!==this.navBarWrapper&&null!==this.navBar&&null!==this.actionsList){var e=t.parentElement,n=this.element.parentElement;d.lgMin.matches?e!==this.navBar&&n!==this.navBar&&this.navBar.insertBefore(this.element,this.actionsList):e!==this.navBarWrapper&&n!==this.navBarWrapper&&this.navBarWrapper.appendChild(this.element)}}},{key:"init",value:function(){var t=this,e=this.children,n=e.controller,i=e.target;this.disclosure=new V({controller:n,target:i,onOpen:this.updateControllerText,onClose:this.updateControllerText});var r=Y("header-search-help",R("Use the Shift key with the Tab key to tab back to the search input.","sciencenews"));document.body.appendChild(r),i.style.clip="rect(0, 0, 0, 0)",i.addEventListener("transitionend",function(){t.disclosure.state.expanded||(i.style.clip="rect(0, 0, 0, 0)")})}},{key:"updateControllerText",value:function(){var t=this.children,e=t.controller,n=t.target,i=t.openText,r=t.closeText,s=t.input,o=this.disclosure.state.expanded;i.setAttribute("aria-hidden","".concat(o)),r.setAttribute("aria-hidden","".concat(!o)),o?(n.style.clip="auto",e.setAttribute("aria-describedby","header-search-help"),s.focus()):e.removeAttribute("aria-describedby")}}])}(),it=p(sciencenewsClassnames["header-search"]);e({name:"header-search",component:nt,querySelector:{target:it.wrapper,controller:it.toggle,openText:it.open,closeText:it.close,input:"input"}});var rt=function(){return a(function t(e){if(i(this,t),null==e||!(e instanceof HTMLFormElement))throw new Error("Invalid form element.");this.form=e,this.validateEmailInput=this.validateEmailInput.bind(this),this.formSubmit=this.formSubmit.bind(this),this.checkEmailInput=this.checkEmailInput.bind(this),this.updateState=this.updateState.bind(this),this.updateReadyState=this.updateReadyState.bind(this),this.init()},[{key:"updateState",value:function(t){var e=new CustomEvent("sn.formstatechange",{bubbles:!0,composed:!0,detail:{status:t}});this.form.dispatchEvent(e)}},{key:"updateReadyState",value:function(){Object.defineProperty(this.form,"faReadyState",{value:"ready",configurable:!0});var t=new CustomEvent("sn.formready",{bubbles:!0,composed:!0,detail:{}});this.form.dispatchEvent(t)}},{key:"init",value:function(){this.emailInput=this.form.querySelector('[name="email"]'),this.nonceInput=this.form.querySelector('[name="nonce"]'),this.submit=this.form.querySelector('[type="submit"]'),this.honeyPot=this.form.querySelector('[name="client_key"]'),this.formId=this.form.querySelector('[name="form_id"]'),this.control=this.form.querySelector('[name="control"]'),null!=this.emailInput&&(this.form.addEventListener("submit",this.formSubmit),this.emailInput.addEventListener("input",this.checkEmailInput),this.updateReadyState())}},{key:"checkEmailInput",value:function(){null!==this.emailInput.getAttribute("aria-invalid")&&this.emailInput.removeAttribute("aria-invalid")}},{key:"validateEmailInput",value:function(){var t=this.emailInput,e=t.value,n=t.pattern,i=new RegExp(n),r=e.trim();return e.trim().length>0&&i.test(r)}},{key:"formSubmit",value:function(t){var e,n=this;if(t.preventDefault(),!this.validateEmailInput())return this.emailInput.setAttribute("aria-invalid","true"),!1;var i=window.location,r=i.pathname,s=i.search,o=null!==(e=this.honeyPot)&&void 0!==e&&e.value?this.honeyPot.value:"",a=this.nonceInput.value,l=this.formId.value,c=this.control.value,u=encodeURIComponent(this.emailInput.value);this.emailInput.removeAttribute("aria-invalid"),this.updateState("loading");var h=["client_key=".concat(o),"control=".concat(c),"email=".concat(u),"form_id=".concat(l),"page=".concat(r)],d="".concat(h.join("&")).concat(s),p=new XMLHttpRequest;p.open("POST",this.form.action,!0),p.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8"),p.setRequestHeader("X-WP-Nonce",a),p.send(encodeURI(d)),p.onreadystatechange=function(){if(p.readyState===XMLHttpRequest.DONE){var t=p.status;0===t||t>=200&&t<400?n.updateState("success"):n.updateState("error")}}}}])}();function st(t,e){var 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b=null,w=null;n.rewind&&(t.isBeginning?w=n.virtual&&n.virtual.enabled&&t.virtual?t.virtual.slides.length-1:t.slides.length-1:t.isEnd&&(b=0));const y=(u-o[f])/v,x=f<n.slidesPerGroupSkip-1?1:n.slidesPerGroup;if(p>n.longSwipesMs){if(!n.longSwipes)return void t.slideTo(t.activeIndex);"next"===t.swipeDirection&&(y>=n.longSwipesRatio?t.slideTo(n.rewind&&t.isEnd?b:f+x):t.slideTo(f)),"prev"===t.swipeDirection&&(y>1-n.longSwipesRatio?t.slideTo(f+x):null!==w&&y<0&&Math.abs(y)>n.longSwipesRatio?t.slideTo(w):t.slideTo(f))}else{if(!n.shortSwipes)return void t.slideTo(t.activeIndex);!t.navigation||r.target!==t.navigation.nextEl&&r.target!==t.navigation.prevEl?("next"===t.swipeDirection&&t.slideTo(null!==b?b:f+x),"prev"===t.swipeDirection&&t.slideTo(null!==w?w:f)):r.target===t.navigation.nextEl?t.slideTo(f+x):t.slideTo(f)}}function J(){const e=this,{params:t,el:s}=e;if(s&&0===s.offsetWidth)return;t.breakpoints&&e.setBreakpoint();const{allowSlideNext:i,allowSlidePrev:r,snapGrid:n}=e,a=e.virtual&&e.params.virtual.enabled;e.allowSlideNext=!0,e.allowSlidePrev=!0,e.updateSize(),e.updateSlides(),e.updateSlidesClasses();const l=a&&t.loop;!("auto"===t.slidesPerView||t.slidesPerView>1)||!e.isEnd||e.isBeginning||e.params.centeredSlides||l?e.params.loop&&!a?e.slideToLoop(e.realIndex,0,!1,!0):e.slideTo(e.activeIndex,0,!1,!0):e.slideTo(e.slides.length-1,0,!1,!0),e.autoplay&&e.autoplay.running&&e.autoplay.paused&&(clearTimeout(e.autoplay.resizeTimeout),e.autoplay.resizeTimeout=setTimeout(()=>{e.autoplay&&e.autoplay.running&&e.autoplay.paused&&e.autoplay.resume()},500)),e.allowSlidePrev=r,e.allowSlideNext=i,e.params.watchOverflow&&n!==e.snapGrid&&e.checkOverflow()}function Q(e){const t=this;t.enabled&&(t.allowClick||(t.params.preventClicks&&e.preventDefault(),t.params.preventClicksPropagation&&t.animating&&(e.stopPropagation(),e.stopImmediatePropagation())))}function ee(){const e=this,{wrapperEl:t,rtlTranslate:s,enabled:i}=e;if(!i)return;let r;e.previousTranslate=e.translate,e.isHorizontal()?e.translate=-t.scrollLeft:e.translate=-t.scrollTop,0===e.translate&&(e.translate=0),e.updateActiveIndex(),e.updateSlidesClasses();const n=e.maxTranslate()-e.minTranslate();r=0===n?0:(e.translate-e.minTranslate())/n,r!==e.progress&&e.updateProgress(s?-e.translate:e.translate),e.emit("setTranslate",e.translate,!1)}function te(e){const t=this;R(t,e.target),t.params.cssMode||"auto"!==t.params.slidesPerView&&!t.params.autoHeight||t.update()}function se(){const e=this;e.documentTouchHandlerProceeded||(e.documentTouchHandlerProceeded=!0,e.params.touchReleaseOnEdges&&(e.el.style.touchAction="auto"))}const ie=(e,t)=>{const 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ae(e,t){return function(s={}){const i=Object.keys(s)[0],r=s[i];"object"==typeof r&&null!==r?(!0===e[i]&&(e[i]={enabled:!0}),"navigation"===i&&e[i]&&e[i].enabled&&!e[i].prevEl&&!e[i].nextEl&&(e[i].auto=!0),["pagination","scrollbar"].indexOf(i)>=0&&e[i]&&e[i].enabled&&!e[i].el&&(e[i].auto=!0),i in e&&"enabled"in r?("object"!=typeof e[i]||"enabled"in e[i]||(e[i].enabled=!0),e[i]||(e[i]={enabled:!1}),w(t,s)):w(t,s)):w(t,s)}}const le={eventsEmitter:G,update:H,translate:{getTranslate:function(e=(this.isHorizontal()?"x":"y")){const{params:t,rtlTranslate:s,translate:i,wrapperEl:r}=this;if(t.virtualTranslate)return s?-i:i;if(t.cssMode)return i;let n=function(e,t="x"){const s=m();let i,r,n;const a=function(e){const t=m();let s;return t.getComputedStyle&&(s=t.getComputedStyle(e,null)),!s&&e.currentStyle&&(s=e.currentStyle),s||(s=e.style),s}(e);return s.WebKitCSSMatrix?(r=a.transform||a.webkitTransform,r.split(",").length>6&&(r=r.split(", ").map(e=>e.replace(",",".")).join(", ")),n=new 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c=s.maxTranslate()-s.minTranslate();l=0===c?0:(e-s.minTranslate())/c,l!==a&&s.updateProgress(e),s.emit("setTranslate",s.translate,t)},minTranslate:function(){return-this.snapGrid[0]},maxTranslate:function(){return-this.snapGrid[this.snapGrid.length-1]},translateTo:function(e=0,t=this.params.speed,s=!0,i=!0,r){const n=this,{params:a,wrapperEl:l}=n;if(n.animating&&a.preventInteractionOnTransition)return!1;const o=n.minTranslate(),d=n.maxTranslate();let c;if(c=i&&e>o?o:i&&e<d?d:e,n.updateProgress(c),a.cssMode){const e=n.isHorizontal();if(0===t)l[e?"scrollLeft":"scrollTop"]=-c;else{if(!n.support.smoothScroll)return x({swiper:n,targetPosition:-c,side:e?"left":"top"}),!0;l.scrollTo({[e?"left":"top"]:-c,behavior:"smooth"})}return!0}return 0===t?(n.setTransition(0),n.setTranslate(c),s&&(n.emit("beforeTransitionStart",t,r),n.emit("transitionEnd"))):(n.setTransition(t),n.setTranslate(c),s&&(n.emit("beforeTransitionStart",t,r),n.emit("transitionStart")),n.animating||(n.animating=!0,n.onTranslateToWrapperTransitionEnd||(n.onTranslateToWrapperTransitionEnd=function(e){n&&!n.destroyed&&e.target===this&&(n.wrapperEl.removeEventListener("transitionend",n.onTranslateToWrapperTransitionEnd),n.onTranslateToWrapperTransitionEnd=null,delete n.onTranslateToWrapperTransitionEnd,n.animating=!1,s&&n.emit("transitionEnd"))}),n.wrapperEl.addEventListener("transitionend",n.onTranslateToWrapperTransitionEnd))),!0}},transition:{setTransition:function(e,t){const s=this;s.params.cssMode||(s.wrapperEl.style.transitionDuration=`${e}ms`,s.wrapperEl.style.transitionDelay=0===e?"0ms":""),s.emit("setTransition",e,t)},transitionStart:function(e=!0,t){const s=this,{params:i}=s;i.cssMode||(i.autoHeight&&s.updateAutoHeight(),q({swiper:s,runCallbacks:e,direction:t,step:"Start"}))},transitionEnd:function(e=!0,t){const s=this,{params:i}=s;s.animating=!1,i.cssMode||(s.setTransition(0),q({swiper:s,runCallbacks:e,direction:t,step:"End"}))}},slide:W,loop:X,grabCursor:{setGrabCursor:function(e){const t=this;if(!t.params.simulateTouch||t.params.watchOverflow&&t.isLocked||t.params.cssMode)return;const s="container"===t.params.touchEventsTarget?t.el:t.wrapperEl;t.isElement&&(t.__preventObserver__=!0),s.style.cursor="move",s.style.cursor=e?"grabbing":"grab",t.isElement&&requestAnimationFrame(()=>{t.__preventObserver__=!1})},unsetGrabCursor:function(){const e=this;e.params.watchOverflow&&e.isLocked||e.params.cssMode||(e.isElement&&(e.__preventObserver__=!0),e["container"===e.params.touchEventsTarget?"el":"wrapperEl"].style.cursor="",e.isElement&&requestAnimationFrame(()=>{e.__preventObserver__=!1}))}},events:{attachEvents:function(){const e=this,{params:t}=e;e.onTouchStart=U.bind(e),e.onTouchMove=K.bind(e),e.onTouchEnd=Z.bind(e),e.onDocumentTouchStart=se.bind(e),t.cssMode&&(e.onScroll=ee.bind(e)),e.onClick=Q.bind(e),e.onLoad=te.bind(e),ie(e,"on")},detachEvents:function(){ie(this,"off")}},breakpoints:{setBreakpoint:function(){const e=this,{realIndex:t,initialized:s,params:i,el:r}=e,n=i.breakpoints;if(!n||n&&0===Object.keys(n).length)return;const a=p(),l="window"!==i.breakpointsBase&&i.breakpointsBase?"container":i.breakpointsBase,o=["window","container"].includes(i.breakpointsBase)||!i.breakpointsBase?e.el:a.querySelector(i.breakpointsBase),d=e.getBreakpoint(n,l,o);if(!d||e.currentBreakpoint===d)return;const c=(d in n?n[d]:void 0)||e.originalParams,u=re(e,i),m=re(e,c),f=e.params.grabCursor,h=c.grabCursor,g=i.enabled;u&&!m?(r.classList.remove(`${i.containerModifierClass}grid`,`${i.containerModifierClass}grid-column`),e.emitContainerClasses()):!u&&m&&(r.classList.add(`${i.containerModifierClass}grid`),(c.grid.fill&&"column"===c.grid.fill||!c.grid.fill&&"column"===i.grid.fill)&&r.classList.add(`${i.containerModifierClass}grid-column`),e.emitContainerClasses()),f&&!h?e.unsetGrabCursor():!f&&h&&e.setGrabCursor(),["navigation","pagination","scrollbar"].forEach(t=>{if(void 0===c[t])return;const s=i[t]&&i[t].enabled,r=c[t]&&c[t].enabled;s&&!r&&e[t].disable(),!s&&r&&e[t].enable()});const v=c.direction&&c.direction!==i.direction,b=i.loop&&(c.slidesPerView!==i.slidesPerView||v),y=i.loop;v&&s&&e.changeDirection(),w(e.params,c);const x=e.params.enabled,S=e.params.loop;Object.assign(e,{allowTouchMove:e.params.allowTouchMove,allowSlideNext:e.params.allowSlideNext,allowSlidePrev:e.params.allowSlidePrev}),g&&!x?e.disable():!g&&x&&e.enable(),e.currentBreakpoint=d,e.emit("_beforeBreakpoint",c),s&&(b?(e.loopDestroy(),e.loopCreate(t),e.updateSlides()):!y&&S?(e.loopCreate(t),e.updateSlides()):y&&!S&&e.loopDestroy()),e.emit("breakpoint",c)},getBreakpoint:function(e,t="window",s){if(!e||"container"===t&&!s)return;let i=!1;const r=m(),n="window"===t?r.innerHeight:s.clientHeight,a=Object.keys(e).map(e=>{if("string"==typeof e&&0===e.indexOf("@")){const t=parseFloat(e.substr(1));return{value:n*t,point:e}}return{value:e,point:e}});a.sort((e,t)=>parseInt(e.value,10)-parseInt(t.value,10));for(let e=0;e<a.length;e+=1){const{point:n,value:l}=a[e];"window"===t?r.matchMedia(`(min-width: ${l}px)`).matches&&(i=n):l<=s.clientWidth&&(i=n)}return i||"max"}},checkOverflow:{checkOverflow:function(){const 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0,startMoving:void 0,pointerId:null,touchId:null},allowClick:!0,allowTouchMove:r.params.allowTouchMove,touches:{startX:0,startY:0,currentX:0,currentY:0,diff:0},imagesToLoad:[],imagesLoaded:0}),r.emit("_swiper"),r.params.init&&r.init(),r}getDirectionLabel(e){return this.isHorizontal()?e:{width:"height","margin-top":"margin-left","margin-bottom ":"margin-right","margin-left":"margin-top","margin-right":"margin-bottom","padding-left":"padding-top","padding-right":"padding-bottom",marginRight:"marginBottom"}[e]}getSlideIndex(e){const{slidesEl:t,params:s}=this,i=M(S(t,`.${s.slideClass}, swiper-slide`)[0]);return M(e)-i}getSlideIndexByData(e){return this.getSlideIndex(this.slides.find(t=>1*t.getAttribute("data-swiper-slide-index")===e))}getSlideIndexWhenGrid(e){return 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