.card-nav-container{box-sizing:border-box;width:calc(100% - var(--spacing-10) * 2);max-width:var(--home-content-max-width);margin-inline:auto}.card-nav{width:100%;height:var(--card-nav-closed-height);border:var(--border-width) solid var(--card-nav-border);border-radius:var(--card-nav-radius);box-shadow:var(--card-nav-shadow);-webkit-backdrop-filter:blur(var(--card-nav-blur));backdrop-filter:blur(var(--card-nav-blur));transition:border-color var(--duration-fast) var(--ease-standard), background-color var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);will-change:height;display:block;position:relative;overflow:hidden}.card-nav-top{box-sizing:border-box;min-height:var(--card-nav-closed-height);justify-content:space-between;align-items:center;gap:var(--spacing-4);padding:var(--spacing-2) var(--spacing-3);display:flex;position:relative}.card-nav-menu{width:calc(var(--spacing-10) + var(--spacing-1));height:calc(var(--spacing-10) + var(--spacing-1));padding:var(--spacing-2);border:var(--border-width) solid transparent;border-radius:var(--radius-full);cursor:pointer;background:0 0;place-items:center;display:inline-grid}.card-nav-menu svg{width:var(--spacing-6);height:var(--spacing-6)}.card-nav-menu path{transition:transform var(--duration-fast) var(--ease-standard);transform-origin:50%;stroke:currentColor;stroke-linecap:round;stroke-width:var(--border-width)}.card-nav-menu.open path:first-child{transform:translateY(var(--spacing-1)) rotate(45deg)}.card-nav-menu.open path:last-child{transform:translateY(calc(var(--spacing-1) * -1)) rotate(-45deg)}.card-nav-brand{min-height:calc(var(--spacing-10) + var(--spacing-1));align-items:center;gap:var(--spacing-2);color:var(--card-nav-current-foreground);text-decoration:none;display:inline-flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.card-nav-brand__text.semi-typography{color:inherit;font-weight:var(--font-weight-bold)}.card-nav-logo{width:var(--spacing-6);height:var(--spacing-6);display:block}.card-nav-primary{display:none}.card-nav-primary__item{min-height:calc(var(--spacing-10) + var(--spacing-1));padding-inline:var(--spacing-4);border-radius:var(--radius-element);color:var(--card-nav-current-muted-foreground);font-weight:var(--font-weight-medium);transition:color var(--duration-fast) var(--ease-standard), background-color var(--duration-fast) var(--ease-standard);align-items:center;text-decoration:none;display:inline-flex}.card-nav-primary__item--active{background:color-mix(in srgb, var(--card-nav-current-foreground) 10%, transparent);color:var(--card-nav-current-foreground)}.card-nav-actions{align-items:center;gap:var(--spacing-2);display:flex}.card-nav-message-badge{flex:none;display:inline-flex}.card-nav-message-badge--mobile{display:none}.card-nav-message-badge .semi-badge-count{min-width:var(--spacing-5);height:var(--spacing-5);padding-inline:var(--spacing-1);border:calc(var(--border-width) * 2) solid var(--card-nav-base);font-size:.6875rem;line-height:calc(var(--spacing-5) - var(--border-width) * 4)}.card-nav-message-trigger.semi-button{width:calc(var(--spacing-10) + var(--spacing-1));min-width:calc(var(--spacing-10) + var(--spacing-1));height:calc(var(--spacing-10) + var(--spacing-1));padding:var(--spacing-0);border:var(--border-width) solid transparent;border-radius:var(--radius-element);color:var(--card-nav-current-foreground);transition:border-color var(--duration-fast) var(--ease-standard), background-color var(--duration-fast) var(--ease-standard)}.card-nav-message-trigger.semi-button:hover,.card-nav-message-trigger.semi-button.is-open{border-color:var(--card-nav-border);background:var(--card-nav-hover-surface);color:var(--card-nav-current-foreground)}.card-nav-message-trigger.semi-button:focus-visible{outline:calc(var(--border-width) * 2) solid var(--semi-color-focus-border);outline-offset:var(--spacing-1)}:root{--card-nav-message-sheet-edge:var(--card-nav-current-inline-inset,var(--card-nav-shortened-inline-inset));--card-nav-message-sheet-top:calc(env(safe-area-inset-top) + var(--card-nav-closed-height) + var(--spacing-8));--card-nav-message-sheet-bottom:var(--card-nav-wide-gutter);--card-nav-message-sheet-width:min(24rem, calc(100vw - var(--card-nav-message-sheet-edge) - var(--card-nav-message-sheet-edge)));--card-nav-message-reserved-width:calc(var(--card-nav-message-sheet-width) + var(--card-nav-shortened-inline-inset))}@media (min-width:75rem){:root{--card-nav-wide-content-left:max(0px, calc((100vw - var(--home-content-max-width)) / 2));--card-nav-wide-inset-content-left:max(var(--spacing-4), calc((100vw - var(--home-content-max-width)) / 2))}body.card-nav-message-rail-open .galaxy-hero__content{right:var(--card-nav-message-reserved-width)}body.card-nav-message-rail-open .home-placeholder__inner,body.card-nav-message-rail-open .site-footer__inner{width:calc(100% - var(--card-nav-message-reserved-width) - var(--card-nav-wide-content-left));max-width:none;margin-right:auto;margin-left:var(--card-nav-wide-content-left)}body.card-nav-message-rail-open .academy-page__inner,body.card-nav-message-rail-open .course-detail-page__inner{width:calc(100% - var(--card-nav-message-reserved-width) - var(--card-nav-wide-inset-content-left));max-width:none;margin-right:auto;margin-left:var(--card-nav-wide-inset-content-left)}body.card-nav-message-rail-open .customer-support,body.card-nav-message-rail-open .course-player--floating{right:calc(var(--card-nav-message-reserved-width) + var(--spacing-5))}body.card-nav-message-rail-open .home-placeholder__popular-grid,body.card-nav-message-rail-open .academy-course-grid{grid-template-columns:repeat(3, minmax(var(--spacing-0), 1fr))}}.card-nav-message-sheet .semi-sidesheet-mask{background:color-mix(in srgb, var(--galaxy-void) 18%, transparent);-webkit-backdrop-filter:none;backdrop-filter:none}.card-nav-message-sheet .semi-sidesheet-inner-wrap{top:var(--card-nav-message-sheet-top);right:var(--card-nav-message-sheet-edge);bottom:var(--card-nav-message-sheet-bottom);border:var(--border-width) solid var(--semi-color-border);border-radius:calc(var(--radius-container) + var(--spacing-2));background:var(--semi-color-bg-2);box-shadow:var(--semi-shadow-elevated);isolation:isolate;overflow:hidden;height:calc(100dvh - var(--card-nav-message-sheet-top) - var(--card-nav-message-sheet-bottom))!important}.card-nav-message-sheet.semi-sidesheet-fixed.semi-sidesheet-right .semi-sidesheet-inner-wrap{right:var(--card-nav-message-sheet-edge)}.card-nav-message-sheet .semi-sidesheet-content,.card-nav-message-sheet .semi-sidesheet-body{min-height:var(--spacing-0);overflow:hidden}.card-nav-message-sheet .semi-sidesheet-header{display:none}.card-nav-message-sheet .semi-sidesheet-body{padding:var(--spacing-0)}.card-nav-message-panel{min-height:var(--spacing-0);border-radius:inherit;background:var(--semi-color-bg-2);height:100%;color:var(--semi-color-text-0);flex-direction:column;display:flex}.card-nav-message-panel__header{justify-content:space-between;align-items:center;gap:var(--spacing-3);min-height:3.25rem;padding:var(--spacing-1) var(--spacing-3);border-bottom:var(--border-width) solid var(--semi-color-border);display:flex}.card-nav-message-panel__heading{min-width:var(--spacing-0);align-items:baseline;gap:var(--spacing-2);display:flex}.card-nav-message-panel__actions{align-items:center;gap:var(--spacing-0-5);display:flex}.card-nav-message-panel__heading strong{color:var(--semi-color-text-0);font-size:1.0625rem;font-weight:var(--font-weight-bold);line-height:1.5rem}.card-nav-message-panel__heading span{color:var(--semi-color-text-3);font-size:.75rem;font-weight:var(--font-weight-regular);text-overflow:ellipsis;white-space:nowrap;line-height:1.125rem;overflow:hidden}.card-nav-message-panel__actions .semi-button{width:var(--spacing-10);min-width:var(--spacing-10);height:var(--spacing-10);padding:var(--spacing-0);border-radius:var(--radius-full);color:var(--semi-color-text-2);flex:none}.card-nav-message-panel__actions .semi-button:hover{background:var(--semi-color-fill-0);color:var(--semi-color-text-0)}.card-nav-message-panel__conversation-heading{min-width:var(--spacing-0);align-items:center;gap:var(--spacing-2);display:flex}.card-nav-message-panel__conversation-heading>.semi-button{width:var(--spacing-10);min-width:var(--spacing-10);height:var(--spacing-10);padding:var(--spacing-0);border-radius:var(--radius-full);flex:none}.card-nav-message-panel__conversation-heading>.card-nav-message-item__avatar{width:var(--spacing-8);height:var(--spacing-8)}.card-nav-message-panel__conversation-heading>div{min-width:var(--spacing-0);flex-direction:column;display:flex}.card-nav-message-panel__conversation-heading strong,.card-nav-message-panel__conversation-heading span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.card-nav-message-panel__conversation-heading strong{color:var(--semi-color-text-0);font-size:.9375rem;line-height:1.25rem}.card-nav-message-panel__conversation-heading>div>span{color:var(--semi-color-text-3);font-size:.6875rem;line-height:1rem}.card-nav-message-tabs .semi-tabs-bar{margin:var(--spacing-0);padding-inline:var(--spacing-3);border-bottom:var(--border-width) solid var(--semi-color-border)}.card-nav-message-tabs .semi-tabs-tab{min-height:calc(var(--spacing-10) + var(--spacing-1));padding-inline:var(--spacing-2);flex:1;justify-content:center}.card-nav-message-tabs .semi-tabs-content{display:none}.card-nav-message-toolbar{align-items:center;gap:var(--spacing-2);padding:var(--spacing-1) var(--spacing-3) var(--spacing-2);display:flex}.card-nav-message-search.semi-input-wrapper{min-width:var(--spacing-0);min-height:var(--spacing-10);border:var(--border-width) solid transparent;border-radius:var(--radius-element);background:var(--semi-color-fill-1);flex:1}.card-nav-message-search.semi-input-wrapper:hover{border-color:var(--semi-color-border);background:var(--semi-color-fill-0)}.card-nav-message-search.semi-input-wrapper-focus{border-color:var(--semi-color-focus-border);background:var(--semi-color-bg-2);box-shadow:0 0 0 calc(var(--border-width) * 2) color-mix(in srgb, var(--semi-color-focus-border) 15%, transparent)}.card-nav-message-search .semi-input-prefix{color:var(--semi-color-text-2);font-size:var(--spacing-4)}.card-nav-message-search .semi-input{font-size:.875rem}.card-nav-message-toolbar__action.semi-button{width:var(--spacing-10);min-width:var(--spacing-10);height:var(--spacing-10);padding:var(--spacing-0);border:var(--border-width) solid var(--semi-color-border);border-radius:var(--radius-full);color:var(--semi-color-text-1)}.card-nav-message-toolbar__action.semi-button:hover{border-color:var(--semi-color-text-2);background:var(--semi-color-fill-0);color:var(--semi-color-text-0)}.card-nav-message-panel__body{min-height:var(--spacing-0);overscroll-behavior:contain;max-height:none;padding:var(--spacing-0);scrollbar-gutter:stable;flex:1;overflow:hidden auto}.card-nav-message-panel__body.is-chat{scrollbar-gutter:auto;overflow:hidden}.card-nav-direct-chat,.card-nav-direct-chat__component.semi-chat,.card-nav-direct-chat__component .semi-chat-inner{min-height:var(--spacing-0);height:100%}.card-nav-direct-chat__component.semi-chat{width:100%;max-width:none;padding:var(--spacing-0);background:var(--semi-color-bg-2)}.card-nav-direct-chat__component .semi-chat-content{min-height:var(--spacing-0)}.card-nav-direct-chat__component .semi-chat-container{padding:var(--spacing-3);overscroll-behavior:contain}.card-nav-direct-chat__component .semi-chat-chatBox{margin-bottom:var(--spacing-3)}.card-nav-direct-chat__component .semi-chat-chatBox-title{color:var(--semi-color-text-2);font-size:.6875rem}.card-nav-direct-chat__component .semi-chat-chatBox-content-bubble,.card-nav-direct-chat__component .semi-chat-chatBox-content-userBubble{max-width:min(18rem,82%);padding:var(--spacing-2) var(--spacing-3);border-radius:var(--radius-element)}.card-nav-direct-chat__plain-content{color:inherit;overflow-wrap:anywhere;white-space:pre-wrap;font-size:.875rem;line-height:1.55}.card-nav-direct-chat__message-title{align-items:center;gap:var(--spacing-1);display:inline-flex}.card-nav-direct-chat__message-title time,.card-nav-direct-chat__message-title em{color:var(--semi-color-text-3);font-variant-numeric:tabular-nums;font-size:.6875rem;font-style:normal}.card-nav-direct-chat__message-title em{color:var(--semi-color-danger)}.card-nav-direct-chat__message-title em.is-read{color:var(--semi-color-primary)}.card-nav-direct-chat__top-slot{min-height:var(--spacing-8);justify-content:space-between;align-items:center;gap:var(--spacing-2);padding:var(--spacing-1) var(--spacing-3);border-bottom:var(--border-width) solid var(--semi-color-border);color:var(--semi-color-text-3);font-size:.6875rem;display:flex}.card-nav-direct-chat__top-slot>span{min-width:var(--spacing-0);align-items:center;gap:var(--spacing-1);display:inline-flex}.card-nav-direct-chat__top-slot i{width:var(--spacing-2);height:var(--spacing-2);border-radius:var(--radius-full);background:var(--semi-color-warning);flex:none}.card-nav-direct-chat__top-slot .is-connected i{background:var(--semi-color-success)}.card-nav-direct-chat__top-slot .is-unavailable i{background:var(--semi-color-tertiary)}.card-nav-direct-chat__top-slot .semi-button{flex:none}.card-nav-direct-chat__component .semi-chat-inputBox{padding:var(--spacing-2) var(--spacing-3) var(--spacing-3);border-top:var(--border-width) solid var(--semi-color-border);background:var(--semi-color-bg-2)}.card-nav-direct-chat__component .semi-chat-inputBox-inner,.card-nav-direct-chat__component .semi-chat-inputBox-container{border-radius:var(--radius-element);background:var(--semi-color-fill-0)}.card-nav-direct-chat__component .semi-chat-inputBox-sendButton.semi-button{width:var(--spacing-8);min-width:var(--spacing-8);height:var(--spacing-8)}.card-nav-direct-chat__rich-editor{gap:var(--spacing-1);width:100%;padding:var(--spacing-2) var(--spacing-3) var(--spacing-3);border-top:var(--border-width) solid var(--semi-color-border);background:var(--semi-color-bg-2);flex-direction:column;display:flex}.card-nav-direct-chat__format-toolbar{align-items:center;gap:var(--spacing-1);display:flex}.card-nav-direct-chat__format-toolbar .semi-button{width:calc(var(--spacing-10) + var(--spacing-1));min-width:calc(var(--spacing-10) + var(--spacing-1));height:calc(var(--spacing-10) + var(--spacing-1));padding:var(--spacing-0)}.card-nav-direct-chat__editor-row{align-items:flex-end;gap:var(--spacing-2);display:flex}.card-nav-direct-chat__editor-row>.semi-input-textarea-wrapper{min-width:var(--spacing-0);border-radius:var(--radius-element);background:var(--semi-color-fill-0);flex:1}.card-nav-direct-chat__editor-row .semi-input-textarea{line-height:1.5}.card-nav-direct-chat__send.semi-button{width:calc(var(--spacing-10) + var(--spacing-1));min-width:calc(var(--spacing-10) + var(--spacing-1));height:calc(var(--spacing-10) + var(--spacing-1));padding:var(--spacing-0);border-radius:var(--radius-full);flex:none}.card-nav-direct-chat__composer-hint{min-height:1rem;color:var(--semi-color-text-3);font-size:.6875rem;line-height:1rem}.card-nav-direct-chat__composer-hint.is-blocked{color:var(--semi-color-warning)}.card-nav-direct-chat__component .semi-chat-chatBox-content p,.card-nav-direct-chat__component .semi-chat-chatBox-content ul,.card-nav-direct-chat__component .semi-chat-chatBox-content ol,.card-nav-direct-chat__component .semi-chat-chatBox-content pre{margin-block:var(--spacing-1)}.card-nav-direct-chat__component .semi-chat-chatBox-content a{color:inherit;text-underline-offset:.15em;text-decoration:underline}.card-nav-direct-chat__component .semi-chat-chatBox-content code{border-radius:calc(var(--radius-element) / 2);background:color-mix(in srgb, currentColor 10%, transparent);overflow-wrap:anywhere;padding:.1em .3em;font-size:.8125rem}.card-nav-direct-chat__loading{gap:var(--spacing-4);height:100%;padding:var(--spacing-5) var(--spacing-3);flex-direction:column;display:flex}.card-nav-direct-chat__loading>div{align-items:flex-start;gap:var(--spacing-2);width:78%;display:flex}.card-nav-direct-chat__loading>div.is-mine{flex-direction:row-reverse;align-self:flex-end}.card-nav-direct-chat__loading .semi-skeleton-paragraph{min-width:var(--spacing-0);margin:var(--spacing-0);flex:1}.card-nav-direct-chat__error{height:100%}.card-nav-message-list{flex-direction:column;display:flex}.card-nav-message-item{grid-template-columns:2.75rem minmax(var(--spacing-0), 1fr) auto;align-items:center;gap:calc(var(--spacing-2) + var(--spacing-0-5));width:100%;min-height:4.25rem;padding:var(--spacing-2) var(--spacing-3);border:var(--border-width) solid transparent;border-radius:var(--spacing-0);color:var(--semi-color-text-0);font:inherit;text-align:left;transition:border-color var(--duration-fast) var(--ease-standard), background-color var(--duration-fast) var(--ease-standard);background:0 0;display:grid;position:relative}.card-nav-message-item:after{right:var(--spacing-3);bottom:calc(var(--border-width) * -1);left:calc(2.75rem + var(--spacing-3) + var(--spacing-2) + var(--spacing-0-5));height:var(--border-width);background:var(--semi-color-border);content:"";pointer-events:none;position:absolute}.card-nav-message-item:last-child:after{display:none}button.card-nav-message-item{cursor:pointer}.card-nav-message-item.is-unread{background:color-mix(in srgb, var(--semi-color-primary) 4%, transparent)}button.card-nav-message-item:hover,button.card-nav-message-item:focus-visible{background:var(--semi-color-fill-0)}button.card-nav-message-item:focus-visible{outline:calc(var(--border-width) * 2) solid var(--semi-color-focus-border);outline-offset:calc(var(--border-width) * -2)}.card-nav-message-item__icon,.card-nav-message-item__avatar{border-radius:var(--radius-full);flex:none;place-items:center;width:2.75rem;height:2.75rem;display:inline-grid;overflow:hidden}.card-nav-message-item__icon{background:var(--semi-color-primary-light-default);color:var(--semi-color-primary);font-size:var(--spacing-5)}.card-nav-message-item__avatar{border:var(--border-width) solid var(--semi-color-border);background:var(--semi-color-fill-1);color:var(--semi-color-text-1);font-size:.8125rem;font-weight:var(--font-weight-bold);position:relative}.card-nav-message-item__avatar img{inset:var(--spacing-0);object-fit:cover;width:100%;height:100%;position:absolute}.card-nav-message-item__copy{min-width:var(--spacing-0);gap:var(--spacing-0-5);flex-direction:column;flex:1;display:flex}.card-nav-message-item__title{min-width:var(--spacing-0);font-size:.9375rem;font-weight:var(--font-weight-bold);text-overflow:ellipsis;white-space:nowrap;line-height:1.25rem;overflow:hidden}.card-nav-message-item__content{color:var(--semi-color-text-2);text-overflow:ellipsis;white-space:nowrap;font-size:.8125rem;line-height:1.125rem;display:block;overflow:hidden}.card-nav-message-item__meta{justify-content:space-between;align-self:stretch;align-items:flex-end;gap:var(--spacing-1);min-width:2.5rem;height:100%;padding-block:var(--spacing-0-5);flex-direction:column;display:flex}.card-nav-message-item__meta time{color:var(--semi-color-text-3);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:.6875rem;line-height:1rem}.card-nav-message-item__dot{width:var(--spacing-2);height:var(--spacing-2);border-radius:var(--radius-full);background:var(--semi-color-danger);flex:none}.card-nav-message-item__unread{min-width:var(--spacing-5);height:var(--spacing-5);padding-inline:var(--spacing-1);border-radius:var(--radius-full);background:var(--semi-color-danger);color:var(--semi-color-white);font-variant-numeric:tabular-nums;font-size:.6875rem;line-height:var(--spacing-5);flex:none;place-items:center;display:inline-grid}.card-nav-message-empty{justify-content:center;align-items:center;gap:var(--spacing-2);min-height:12rem;padding:var(--spacing-6);color:var(--semi-color-text-2);text-align:center;flex-direction:column;display:flex}.card-nav-message-empty>.semi-icon{margin-bottom:var(--spacing-2);color:var(--semi-color-text-3);font-size:var(--spacing-8)}.card-nav-message-empty strong{color:var(--semi-color-text-1);font-size:.875rem}.card-nav-message-empty span{max-width:16rem;color:var(--semi-color-text-3);font-size:.75rem;line-height:1.125rem}.card-nav-message-empty .semi-button{margin-top:var(--spacing-2)}.card-nav-message-skeleton{flex-direction:column;display:flex}.card-nav-message-skeleton__row{grid-template-columns:2.75rem minmax(var(--spacing-0), 1fr) 2.5rem;align-items:center;gap:calc(var(--spacing-2) + var(--spacing-0-5));min-height:4.25rem;padding:var(--spacing-2) var(--spacing-3);border-bottom:var(--border-width) solid var(--semi-color-border);display:grid}.card-nav-message-skeleton__row .semi-skeleton-avatar{width:2.75rem;height:2.75rem}.card-nav-message-skeleton__copy{min-width:var(--spacing-0);gap:var(--spacing-1);flex-direction:column;flex:1;display:flex}.card-nav-message-skeleton__copy .semi-skeleton-title,.card-nav-message-skeleton__copy .semi-skeleton-paragraph{margin:var(--spacing-0)}.card-nav-message-skeleton__meta.semi-skeleton-title{width:2.5rem;margin:var(--spacing-0)}.card-nav-social-list{padding:var(--spacing-1) var(--spacing-2) var(--spacing-3);flex-direction:column;display:flex}.card-nav-social-user{align-items:center;gap:var(--spacing-2);min-height:6.5rem;padding:var(--spacing-2);border-bottom:var(--border-width) solid var(--semi-color-border);display:flex}.card-nav-social-user__profile{min-width:var(--spacing-0);min-height:calc(var(--spacing-10) + var(--spacing-1));align-items:center;gap:var(--spacing-3);padding:var(--spacing-0);color:var(--semi-color-text-0);cursor:pointer;font:inherit;text-align:left;background:0 0;border:0;flex:1;display:flex}.card-nav-social-user__profile:focus-visible{border-radius:var(--radius-element);outline:calc(var(--border-width) * 2) solid var(--semi-color-focus-border);outline-offset:var(--spacing-1)}.card-nav-social-user__profile .semi-avatar{flex:none;width:3rem;height:3rem}.card-nav-social-user__copy{min-width:var(--spacing-0);gap:var(--spacing-0-5);flex-direction:column;flex:1;display:flex}.card-nav-social-user__copy strong,.card-nav-social-user__copy span,.card-nav-social-user__copy small{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.card-nav-social-user__copy strong{color:var(--semi-color-text-0);font-size:.875rem}.card-nav-social-user__copy span,.card-nav-social-user__copy small{color:var(--semi-color-text-3);font-size:.6875rem}.card-nav-social-user__copy small{max-width:13rem}.card-nav-social-user__actions{gap:var(--spacing-1);flex-direction:column;flex:none;display:flex}.card-nav-social-user__actions .semi-button{min-width:4.25rem;min-height:calc(var(--spacing-10) + var(--spacing-1));padding-inline:var(--spacing-2)}.card-nav-search{min-width:0}.card-nav-search--desktop{display:none}.card-nav-search--mobile{grid-column:1/-1}.card-nav-search-trigger{min-height:calc(var(--spacing-10) + var(--spacing-1));align-items:center;gap:var(--spacing-2);padding-inline:var(--spacing-3);border-radius:var(--radius-element);color:var(--card-nav-current-foreground);cursor:pointer;font:inherit;font-size:.875rem;font-weight:var(--font-weight-medium);transition:color var(--duration-fast) var(--ease-standard), background-color var(--duration-fast) var(--ease-standard);background:0 0;border:0;display:inline-flex}.card-nav-search-trigger:hover{background:color-mix(in srgb, var(--card-nav-current-foreground) 8%, transparent)}.card-nav-search-trigger:focus-visible{outline:calc(var(--border-width) * 2) solid var(--card-nav-current-foreground);outline-offset:var(--spacing-1)}.card-nav-search-modal.semi-modal{max-width:calc(100vw - var(--spacing-8))}.card-nav-search-modal .semi-modal-content{border:var(--border-width) solid var(--semi-color-border);border-radius:calc(var(--radius-container) + var(--spacing-1));background:var(--semi-color-bg-2);box-shadow:0 var(--spacing-6) calc(var(--spacing-10) * 2) color-mix(in srgb, var(--galaxy-void) 48%, transparent);padding:0;overflow:hidden}.card-nav-search-modal .semi-modal-body-wrapper,.card-nav-search-modal .semi-modal-body{margin:0;padding:0}.card-nav-search-modal .semi-modal-close.semi-button{top:var(--spacing-5);right:var(--spacing-5);width:var(--spacing-10);min-width:var(--spacing-10);height:var(--spacing-10);border-radius:var(--radius-full);color:var(--semi-color-text-2);background:0 0;padding:0}.card-nav-search-modal .semi-modal-close.semi-button:hover{background:var(--semi-color-fill-0);color:var(--semi-color-text-0)}.card-nav-search-modal__content{padding:var(--spacing-6)}.card-nav-search-modal__header{gap:var(--spacing-1);padding-right:calc(var(--spacing-10) + var(--spacing-5));flex-direction:column;display:flex}.card-nav-search-modal__header strong{color:var(--semi-color-text-0);font-size:1.25rem;line-height:1.4}.card-nav-search-modal__header span{color:var(--semi-color-text-2);font-size:.875rem}.card-nav-search-modal__input.semi-input-wrapper{width:100%;min-height:calc(var(--spacing-10) + var(--spacing-3));margin-top:var(--spacing-4);border:var(--border-width) solid var(--semi-color-border);border-radius:var(--radius-element);background:var(--semi-color-fill-0)}.card-nav-search-modal__input.semi-input-wrapper-focus{border-color:var(--semi-color-focus-border);box-shadow:0 0 0 calc(var(--border-width) * 2) color-mix(in srgb, var(--semi-color-focus-border) 16%, transparent)}.card-nav-search-modal__input .semi-input{font-size:1rem}.card-nav-search-modal__body{min-height:18rem;max-height:min(48dvh,28rem);margin-top:var(--spacing-4);border-top:var(--border-width) solid var(--semi-color-border);overflow-y:auto}.card-nav-search-modal__message{justify-content:center;align-items:center;gap:var(--spacing-2);min-height:18rem;color:var(--semi-color-text-2);text-align:center;flex-direction:column;display:flex}.card-nav-search-modal__message>.semi-icon{margin-bottom:var(--spacing-2);font-size:var(--spacing-6)}.card-nav-search-modal__message strong{color:var(--semi-color-text-1);font-size:.9375rem;font-weight:var(--font-weight-medium)}.card-nav-search-modal__message span{color:var(--semi-color-text-3);font-size:.75rem}.card-nav-search-results{gap:var(--spacing-4);padding-block:var(--spacing-2);flex-direction:column;display:flex}.card-nav-search-section{gap:var(--spacing-1);flex-direction:column;display:flex}.card-nav-search-section>header{min-height:var(--spacing-8);justify-content:space-between;align-items:center;gap:var(--spacing-2);padding-inline:var(--spacing-2);display:flex}.card-nav-search-section>header strong{color:var(--semi-color-text-1);font-size:.75rem;font-weight:var(--font-weight-semibold)}.card-nav-search-section>header span{color:var(--semi-color-text-3);font-size:.6875rem}.card-nav-search-user{align-items:center;gap:var(--spacing-2);min-height:4.5rem;padding:var(--spacing-2);border-radius:var(--radius-element);transition:background-color var(--duration-fast) var(--ease-standard);display:flex}.card-nav-search-user:hover,.card-nav-search-user:focus-within{background:var(--semi-color-fill-0)}.card-nav-search-user__profile{min-width:var(--spacing-0);min-height:calc(var(--spacing-10) + var(--spacing-1));align-items:center;gap:var(--spacing-3);padding:var(--spacing-0);color:var(--semi-color-text-0);cursor:pointer;font:inherit;text-align:left;background:0 0;border:0;flex:1;display:flex}.card-nav-search-user__profile:focus-visible{border-radius:var(--radius-element);outline:calc(var(--border-width) * 2) solid var(--semi-color-focus-border);outline-offset:var(--spacing-1)}.card-nav-search-user__profile .semi-avatar{flex:none;width:3.5rem;height:3.5rem}.card-nav-search-user>.semi-button{min-width:4.25rem;min-height:var(--spacing-10);flex:none}.card-nav-search-result{align-items:center;gap:var(--spacing-3);width:100%;min-height:4.5rem;padding:var(--spacing-2);border-radius:var(--radius-element);color:var(--semi-color-text-0);cursor:pointer;font:inherit;text-align:left;transition:background-color var(--duration-fast) var(--ease-standard);background:0 0;border:0;display:flex}.card-nav-search-result:hover,.card-nav-search-result:focus-visible{background:var(--semi-color-fill-0)}.card-nav-search-result:focus-visible{outline:calc(var(--border-width) * 2) solid var(--semi-color-focus-border);outline-offset:calc(var(--border-width) * -2)}.card-nav-search-result__cover{border:var(--border-width) solid var(--semi-color-border);border-radius:calc(var(--radius-element) - var(--spacing-1));background:var(--semi-color-fill-0);width:3.5rem;height:3.5rem;color:var(--semi-color-text-2);flex:none;place-items:center;display:grid;overflow:hidden}.card-nav-search-result__cover img{object-fit:cover;width:100%;height:100%}.card-nav-search-result__copy{gap:var(--spacing-1);flex-direction:column;flex:1;min-width:0;display:flex}.card-nav-search-result__copy strong,.card-nav-search-result__copy span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.card-nav-search-result__copy span{color:var(--semi-color-text-2);font-size:.75rem}.card-nav-action{min-height:calc(var(--spacing-10) + var(--spacing-1));padding-inline:var(--spacing-4);border:var(--spacing-0);border-radius:var(--radius-element);cursor:pointer;font:inherit;font-weight:var(--font-weight-medium);transition:opacity var(--duration-fast) var(--ease-standard);align-items:center;text-decoration:none;display:inline-flex}.card-nav-action--secondary{border:var(--border-width) solid var(--card-nav-border);color:var(--card-nav-current-foreground);background:0 0}.card-nav-user,.card-nav-mobile-user{align-items:center;gap:var(--spacing-2);min-width:0;color:var(--card-nav-current-foreground)}.card-nav-user-menu-host{min-width:var(--spacing-0);isolation:isolate;flex:none;display:inline-flex;position:relative}.card-nav-user-menu-host--mobile,.card-nav-user-menu-host--mobile>.semi-tooltip-trigger{width:100%}.card-nav-user{min-height:calc(var(--spacing-10) + var(--spacing-1));padding-inline:var(--spacing-2);border:var(--border-width) solid transparent;border-radius:var(--radius-element);cursor:pointer;font:inherit;text-align:left;transition:border-color var(--duration-fast) var(--ease-standard), background-color var(--duration-fast) var(--ease-standard);background:0 0;display:flex}.card-nav-mobile-user{display:none}.card-nav-user__avatar{width:var(--spacing-8);height:var(--spacing-8);border:var(--border-width) solid color-mix(in srgb, var(--card-nav-current-foreground) 24%, transparent);border-radius:var(--radius-full);background:color-mix(in srgb, var(--card-nav-action) 72%, var(--card-nav-base));color:var(--card-nav-current-foreground);font-size:.75rem;font-weight:var(--font-weight-bold);flex:none;place-items:center;display:inline-grid;position:relative;overflow:hidden}.card-nav-user__avatar img{object-fit:cover;width:100%;height:100%;display:block;position:absolute;inset:0}.card-nav-user__nickname{max-width:8rem;font-weight:var(--font-weight-medium);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.card-nav-user__identity{flex-direction:column;min-width:0;display:flex}.card-nav-user__uid{color:color-mix(in srgb, var(--card-nav-current-foreground) 58%, transparent);font-size:.6875rem;line-height:1rem}.card-nav-user__chevron{color:color-mix(in srgb, var(--card-nav-current-foreground) 64%, transparent);transition:transform var(--duration-fast) var(--ease-standard);flex:none}.card-nav-user.is-open .card-nav-user__chevron{transform:rotate(180deg)}.card-nav-user:hover,.card-nav-user.is-open{border-color:var(--card-nav-border);background:var(--card-nav-hover-surface)}.card-nav-user:focus-visible{outline:2px solid var(--semi-color-focus-border);outline-offset:2px}.card-nav-account-menu.semi-dropdown-menu{min-width:14rem;padding:var(--spacing-2);border:var(--border-width) solid var(--semi-color-border);border-radius:var(--radius-container);background:var(--semi-color-bg-2);box-shadow:var(--semi-shadow-elevated)}.card-nav-account-menu__identity{gap:var(--spacing-0-5);padding:var(--spacing-2) var(--spacing-3) var(--spacing-3);flex-direction:column;display:flex}.card-nav-account-menu__identity strong{color:var(--semi-color-text-0);text-overflow:ellipsis;white-space:nowrap;font-size:.875rem;line-height:1.25rem;overflow:hidden}.card-nav-account-menu__identity span{color:var(--semi-color-text-2);font-size:.75rem;line-height:1.125rem}.card-nav-account-menu .semi-dropdown-item{border-radius:calc(var(--radius-element) - var(--spacing-1));min-height:2.75rem}.card-nav-content{top:var(--card-nav-closed-height);right:var(--spacing-0);left:var(--spacing-0);box-sizing:border-box;grid-template-columns:repeat(3, minmax(var(--spacing-0), 1fr));gap:var(--spacing-3);padding:var(--spacing-3);visibility:hidden;pointer-events:none;display:grid;position:absolute}.card-nav.open .card-nav-content{visibility:visible;pointer-events:auto}.card-nav-card{min-height:var(--card-nav-card-height);justify-content:space-between;gap:var(--spacing-5);padding:var(--spacing-4);border:var(--border-width) solid var(--card-nav-border);border-radius:var(--radius-container);-webkit-user-select:none;user-select:none;flex-direction:column;display:flex}.card-nav-card__title.semi-typography{margin:var(--spacing-0);color:inherit}.card-nav-card__links{gap:var(--spacing-1);flex-direction:column;display:flex}.card-nav-link{min-height:calc(var(--spacing-10) + var(--spacing-1));align-items:center;gap:var(--spacing-2);color:inherit;transition:opacity var(--duration-fast) var(--ease-standard);text-decoration:none;display:inline-flex}.card-nav-link-icon{width:var(--spacing-4);height:var(--spacing-4);flex:none}.card-nav-link-icon path{stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:var(--border-width)}.card-nav-menu:hover,.card-nav-action:hover,.card-nav-link:hover{opacity:var(--card-nav-hover-opacity)}.card-nav-primary__item[href]:hover{background:color-mix(in srgb, var(--card-nav-current-foreground) 8%, transparent);color:var(--card-nav-current-foreground)}.card-nav-menu:focus-visible,.card-nav-brand:focus-visible,.card-nav-primary__item[href]:focus-visible,.card-nav-action:focus-visible,.card-nav-link:focus-visible{outline:calc(var(--border-width) * 2) solid var(--card-nav-current-foreground);outline-offset:var(--spacing-1)}@media (min-width:64rem){.card-nav:has(.card-nav-user-menu-host.is-open){overflow:visible!important}.card-nav-top{padding-inline:var(--spacing-5);align-items:center;display:flex}.card-nav-menu{display:none}.card-nav-brand{margin-right:var(--spacing-6);flex:none;position:static;transform:none}.card-nav-primary{min-width:var(--spacing-0);align-items:center;gap:var(--spacing-1);display:flex}.card-nav-search--desktop{flex:none;width:auto;margin-left:auto;display:block}.card-nav-actions{margin-left:var(--spacing-2)}.card-nav-content,.card-nav-search--mobile{display:none}}@media (max-width:47.999rem){:root{--card-nav-message-sheet-edge:var(--spacing-4);--card-nav-message-sheet-top:calc(env(safe-area-inset-top) + var(--card-nav-closed-height) + var(--spacing-4));--card-nav-message-sheet-bottom:var(--spacing-4);--card-nav-message-sheet-width:calc(100vw - var(--spacing-8))}.card-nav-message-panel__body{min-height:var(--spacing-0);max-height:none}.card-nav-direct-chat__component .semi-chat-inputBox-textarea{font-size:1rem}.card-nav-container{width:calc(100% - var(--spacing-8))}.card-nav-top{padding-inline:var(--spacing-2)}.card-nav-brand{order:-1;margin-right:auto;position:static;transform:none}.card-nav-actions{display:none}.card-nav-message-badge--mobile{grid-column:1/-1;width:100%;display:block}.card-nav-message-trigger--mobile.semi-button{width:100%;min-height:calc(var(--spacing-10) + var(--spacing-1));justify-content:flex-start;gap:var(--spacing-2);padding-inline:var(--spacing-3)}.card-nav-message-badge--mobile .semi-badge-count{top:var(--spacing-1);right:var(--spacing-2);transform:none}.card-nav-search--mobile .card-nav-search-trigger{justify-content:flex-start;width:100%}.card-nav-search-modal__content{padding:var(--spacing-5)}.card-nav-search-modal__body,.card-nav-search-modal__message{min-height:15rem}.card-nav-card{min-height:var(--card-nav-card-height-mobile)}.card-nav-content{grid-template-columns:1fr}.card-nav-mobile-user{width:100%;min-height:calc(var(--spacing-10) + var(--spacing-1));padding-inline:var(--spacing-2);justify-content:flex-start;display:flex}.card-nav-mobile-user .card-nav-user__chevron{margin-left:auto}}@media (prefers-reduced-motion:reduce){.galaxy-hero__content,.home-placeholder__inner,.academy-page__inner,.course-detail-page__inner,.site-footer__inner,.card-nav-menu path,.card-nav-primary__item,.card-nav-action,.card-nav-user,.card-nav-user__chevron,.card-nav-message-trigger.semi-button,.card-nav-message-item,.card-nav-link{transition:none}}
.specular-button{--sb-radius:18px;--sb-tint:#fff;--sb-tint-opacity:0;--sb-blur:0px;--sb-text-color:#f5f5f5;border-radius:var(--sb-radius);background:color-mix(in srgb, var(--sb-tint) calc(var(--sb-tint-opacity) * 100%), transparent);color:var(--sb-text-color);letter-spacing:.01em;cursor:pointer;-webkit-backdrop-filter:blur(var(--sb-blur));backdrop-filter:blur(var(--sb-blur));border:none;outline:none;justify-content:center;align-items:center;margin:0;font-family:inherit;font-weight:500;line-height:1;transition:transform .15s;display:inline-flex;position:relative;box-shadow:inset 0 1px #ffffff0a,0 8px 24px #00000040}.specular-button:active{transform:scale(.97)}.specular-button:focus-visible{outline:2px solid color-mix(in srgb, var(--sb-text-color) 60%, transparent);outline-offset:3px}.specular-button:disabled{opacity:.55;cursor:default}.specular-button:disabled:active{transform:none}.specular-button--sm{padding:10px 22px;font-size:.85rem}.specular-button--md{padding:14px 30px;font-size:1rem}.specular-button--lg{padding:18px 40px;font-size:1.15rem}.specular-button__fx{z-index:1;pointer-events:none;position:absolute;inset:-20px}.specular-button__fx canvas{width:100%;height:100%;display:block}.specular-button__label{z-index:2;position:relative}
.text-type{display:inline-block}.text-type__content{display:inline}.text-type__cursor{font-weight:var(--font-weight-regular);will-change:opacity;margin-inline-start:var(--spacing-1);display:inline-block}