:root{color:var(--prototype-text-primary);background:var(--prototype-surface-page);font-family:Noto Sans TC,system-ui,sans-serif;font-synthesis:none;--prototype-brand-primary: #00ccb4;--prototype-brand-dark: #009590;--prototype-brand-light: #dcf9f3;--prototype-surface-page: #f5f7f9;--prototype-surface-card: #fff;--prototype-text-primary: #595959;--prototype-text-secondary: #8c8c8c;--prototype-border-default: #e8e8e8;--prototype-status-promo: #fa8c16;--prototype-status-rating: #faad14;--prototype-status-hot: #f65f55;--prototype-overlay-dim: #00000052;--prototype-space-4: 4px;--prototype-space-8: 8px;--prototype-space-12: 12px;--prototype-space-16: 16px;--prototype-space-24: 24px;--prototype-space-30: 30px;--prototype-space-40: 40px;--prototype-space-64: 64px;--prototype-space-80: 80px;--prototype-radius-8: 8px;--prototype-radius-12: 12px;--prototype-radius-16: 16px;--prototype-content-desktop: 1140px;--prototype-inset-mobile: 16px;--prototype-promo-height: 45px;--prototype-nav-desktop-height: 60px;--prototype-nav-mobile-height: 50px;--prototype-purchase-desktop-width: 424px;--prototype-purchase-mobile-height: 127px;--prototype-shadow-card: 0 0 2px rgb(0 0 0 / 4%), 0 4px 10px rgb(0 0 0 / 8%);--prototype-shadow-floating: 0 6px 16px -2px rgb(0 0 0 / 10%), 0 2px 6px rgb(0 0 0 / 5%);--prototype-surface: var(--prototype-surface-card);--prototype-border: var(--prototype-border-default);--prototype-accent: var(--prototype-brand-dark);--prototype-muted: var(--prototype-text-secondary)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--prototype-surface-page);color:var(--prototype-text-primary)}html:has([data-prototype-overlay]),body:has([data-prototype-overlay]){overflow:hidden}a{color:inherit}button,input{font:inherit}button{color:inherit}.prototype-shell{min-height:100vh}.prototype-shell>.prototype-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 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strong{font-size:16px;line-height:24px}.course-list-branch--mobile .course-card--recent-popular-mobile .course-card__price-row span{flex-basis:100%;margin-left:0;line-height:20px}.course-list-dots,.course-list-domain-position{display:flex;align-items:center;justify-content:center;gap:7px}.course-list-dots{margin-top:12px}.course-list-dots span,.course-list-domain-position span{display:block;width:7px;height:7px;border-radius:999px;background:#d9d9d9}.course-list-dots .course-list-dots__active,.course-list-domain-position span:first-child{width:26px;background:var(--prototype-brand-primary)}.course-list-controls{background:#fff}.course-list-results-shell--desktop{position:relative}.course-list-controls--desktop,.course-list-branch--desktop .result-controls--desktop{display:contents}.result-tabs{position:relative}.course-list-branch--desktop .result-tabs--desktop{position:sticky;z-index:25;top:60px;background:#fff}.course-list-branch--desktop .result-tabs--desktop,.course-list-branch--desktop .result-filters--desktop{width:var(--prototype-content-desktop);margin:0 auto}.result-tabs__track{display:flex;align-items:stretch}.result-tabs__item{position:relative;display:inline-flex;flex:0 0 auto;align-items:baseline;gap:4px;height:58px;padding:17px 18px 14px;color:var(--prototype-text-primary);font-size:16px;line-height:24px;text-decoration:none;white-space:nowrap}.result-tabs__item:first-child{padding-left:0}.result-tabs__item small{color:var(--prototype-text-secondary);font-size:12px}.result-tabs__item[aria-current=page]{color:var(--prototype-brand-dark)}.result-tabs__item[aria-current=page]:after{position:absolute;right:16px;bottom:0;left:16px;height:5px;border-radius:4px 4px 0 0;background:var(--prototype-brand-primary);content:""}.result-tabs__item:first-child[aria-current=page]:after{left:0}.result-filters{position:relative}.result-filter{display:inline-flex;align-items:center;justify-content:space-between;height:42px;padding:0 15px;border:1px solid var(--prototype-border-default);border-radius:8px;background:#fff;font-size:16px;line-height:24px;text-decoration:none}.result-filters--desktop{display:flex;align-items:flex-end;justify-content:space-between;min-height:68px;border-top:1px solid var(--prototype-border-default)}.result-filters__state{width:150px}.result-filters__sorts{display:flex;align-items:center;gap:26px;height:42px}.result-filters__sorts a{color:var(--prototype-text-secondary);text-decoration:none}.result-filters__sorts a[aria-current=page]{color:var(--prototype-brand-dark);font-weight:600}.result-filter-menu{position:absolute;z-index:15;top:48px;left:0;display:grid;min-width:162px;padding:6px;border:1px solid var(--prototype-border-default);border-radius:8px;background:#fff;box-shadow:var(--prototype-shadow-floating)}.result-filter-menu a{padding:8px 10px;border-radius:6px;text-decoration:none}.result-filter-menu a[aria-current=page]{color:var(--prototype-brand-dark);background:var(--prototype-brand-light)}.course-list-controls--mobile{padding:0 var(--prototype-inset-mobile)}.course-list-branch--mobile .result-tabs{width:calc(100% + 16px);margin-left:0}.course-list-branch--mobile .result-tabs__track{overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none}.course-list-branch--mobile .result-tabs__track,.course-list-branch--mobile .result-tabs__position{width:319px}.course-list-branch--mobile .result-tabs__item{padding-top:10px;scroll-snap-align:start}.course-list-branch--mobile .result-tabs__more{position:absolute;top:20px;right:6px;color:var(--prototype-text-secondary)}.result-tabs__position{position:relative;height:9px;border-radius:999px;background:#e9ecef}.result-tabs__position span{display:block;width:72px;height:100%;border-radius:inherit;background:#8fa5a3}.result-filters--mobile{padding:15px 0 12px}.result-filters__row{display:flex;align-items:center;justify-content:space-between}.course-list-branch--mobile .result-filters__row{width:341px}.course-list-branch--mobile .result-filter[data-width="104"]{width:108px}.course-list-branch--mobile .result-filter[data-width="162"]{width:168px}.course-list-branch--mobile .result-filter-menu{top:73px}.course-list-branch--mobile .result-filter-menu--course-state{left:173px}.course-list-results--desktop{padding:32px 0 48px}.course-list-branch--desktop .course-list-results__grid{display:grid;grid-template-columns:repeat(4,267px);gap:38px 24px}.course-list-branch--desktop .course-card--compact-desktop{width:267px;overflow:visible;border-radius:0;box-shadow:none}.course-list-branch--desktop .course-card--compact-desktop .course-card__cover{width:267px;height:166px;border-radius:8px}.course-list-branch--desktop .course-card--compact-desktop .course-card__body{padding:12px 0 0}.course-list-branch--desktop .course-card--compact-desktop .course-card__title{margin-top:7px;font-size:16px;line-height:24px}.course-list-results--mobile{padding:0 var(--prototype-inset-mobile) 36px}.course-list-results__grid--mobile{display:grid}.course-list-branch--mobile .course-card--mobile-row{display:flex;width:100%;min-height:189px;padding:14px 0 15px;overflow:visible;border-bottom:1px solid var(--prototype-border-default);border-radius:0;box-shadow:none}.course-list-result-row--standard .course-card--mobile-row{min-height:189px}.course-list-result-row--extended .course-card--mobile-row{min-height:208px}.course-list-branch--mobile .course-card--mobile-row .course-card__cover{width:112px;height:112px;border-radius:7px}.course-list-branch--mobile .course-card--mobile-row .course-card__body{flex:1;min-width:0;padding:0 0 0 12px}.course-list-branch--mobile .course-card--mobile-row .course-card__title{margin-top:4px;font-size:16px;line-height:24px;-webkit-line-clamp:3}.course-list-branch--mobile .course-card--mobile-row .course-card__instructor,.course-list-branch--mobile .course-card--mobile-row .course-card__fundraising-meta{margin-top:4px;font-size:12px;line-height:19px}.course-list-branch--mobile .course-card--mobile-row .course-card__launched-meta{display:flex;flex-wrap:wrap;gap:2px 8px;margin-top:5px;color:var(--prototype-text-secondary);font-size:12px;line-height:19px}.course-list-branch--mobile .course-card--mobile-row .course-card__progress{height:4px;margin-top:3px}.course-list-branch--mobile .course-card--mobile-row .course-card__price-row{flex-wrap:wrap;gap:0 7px;margin-top:4px}.course-list-branch--mobile .course-card--mobile-row .course-card__price-row strong{font-size:16px;line-height:22px}.course-list-branch--mobile .course-card--mobile-row .course-card__price-row span{flex-basis:100%;margin-left:0;line-height:18px}.course-list-pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:23px}.course-list-pagination a{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;text-decoration:none}.course-list-pagination a[aria-current=page]{color:#fff;background:var(--prototype-brand-dark)}.course-list-topics{background:#f5f7f9}.course-list-topics--desktop{padding:40px 0 54px}.course-list-topics--mobile{padding:38px var(--prototype-inset-mobile) 42px}.course-list-topics__flow{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.topic-chip{display:inline-flex;align-items:center;gap:3px;min-height:36px;padding:6px 14px;border-radius:999px;background:#fff;font-size:16px;line-height:24px;text-decoration:none}.topic-chip span{color:var(--prototype-brand-dark);font-weight:700}.course-list-domains--desktop{padding:46px 0 52px}.course-list-domains--mobile{padding:38px var(--prototype-inset-mobile) 42px}.course-list-domains__grid{display:grid;margin-top:24px}.course-list-domains__grid--desktop{grid-template-columns:repeat(6,170px);gap:20px 24px}.course-list-domains__grid--mobile{grid-template-columns:repeat(2,156px);gap:9px 16px}.domain-tile{position:relative;display:flex;overflow:hidden;align-items:center;justify-content:center;border-radius:10px;text-decoration:none}.domain-tile--desktop{width:170px;height:121px}.domain-tile--mobile{width:100%;height:64px}.domain-tile__image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.domain-tile strong{position:relative;z-index:1;color:#244a47;font-size:18px;line-height:28px;text-shadow:0 1px 5px #fff}.course-list-domain-position{margin-top:25px}.site-footer{color:#dce9e8;background:#002c3a}.business-banner{display:flex;align-items:center;color:#fff;background:#075665}.business-banner--desktop{width:100%;height:72px;padding:0 calc((100% - var(--prototype-content-desktop)) / 2);gap:36px}.business-banner__lockup{width:180px;height:48px;object-fit:contain}.business-banner p{flex:1;margin:0}.business-banner__action{display:inline-flex;align-items:center;justify-content:center;min-width:126px;height:41px;border-radius:8px;color:#124c4c;background:#fff;font-weight:600;text-decoration:none}.site-footer__main--desktop{display:grid;grid-template-columns:150px 150px 1fr 300px;gap:52px;padding:46px 0 54px}.site-footer h2{margin:0 0 12px;color:#58d8c5;font-size:16px;line-height:24px}.site-footer nav ul{margin:0;padding:0;list-style:none}.site-footer nav a{color:inherit;line-height:28px;text-decoration:none}.site-footer__locale{display:grid;gap:12px}.site-footer__locale label{display:grid;gap:5px;font-size:13px}.site-footer__locale select{width:100%;height:42px;padding:0 12px;border:1px solid #3f6570;border-radius:8px;color:#fff;background:#103f4b}.site-footer__copyright{color:#95aaaf;font-size:13px;line-height:21px}.site-footer__social-links{display:flex;flex-wrap:wrap;gap:4px 14px}.site-footer__partner-marks,.site-footer__download-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.site-footer__partner-marks img,.site-footer__download-links img{display:block;object-fit:contain}.site-footer__downloads{margin-top:24px}.business-banner--mobile{align-items:flex-start;flex-direction:column;gap:13px;padding:28px var(--prototype-inset-mobile) 26px}.business-banner--mobile .business-banner__lockup{width:190px}.business-banner--mobile .business-banner__action{align-self:flex-end}.site-footer__main--mobile{display:flex;flex-direction:column;gap:30px;padding:34px 50px 52px}.site-footer__main--mobile .site-footer__locale{gap:14px}.site-footer__main--mobile .site-footer__partner-marks,.site-footer__main--mobile .site-footer__download-links{flex-direction:column;align-items:flex-start}.course-list-branch--mobile .site-footer__main--mobile{gap:8px;padding:20px 50px 40px}.course-list-branch--mobile .business-banner--mobile{gap:8px;padding:20px var(--prototype-inset-mobile) 18px}.course-list-branch--mobile .business-banner--mobile .business-banner__lockup{height:36px}.course-list-branch--mobile .business-banner--mobile .business-banner__action{height:38px}.course-list-branch--mobile .site-footer__locale{gap:8px}.course-list-branch--mobile .site-footer__locale label{gap:2px}.course-list-branch--mobile .site-footer__locale select{height:38px}.course-list-branch--mobile .site-footer__social-links{flex-wrap:nowrap;gap:10px}.course-list-branch--mobile .site-footer__partner-marks{flex-direction:row;align-items:center;flex-wrap:nowrap;gap:8px;margin-top:4px}.course-list-branch--mobile .site-footer__partner-marks img{width:38px;height:28px}.course-list-branch--mobile .site-footer__downloads{margin-top:0}.course-list-branch--mobile .site-footer__download-links{gap:4px;margin-top:4px}.course-list-branch--mobile .site-footer__download-links img{width:132px;height:36px}.course-list-branch--mobile .site-footer__partners h2,.course-list-branch--mobile .site-footer__downloads h2{margin-bottom:6px}@media(max-width:640px){.course-list-branch--desktop{display:none}.course-list-branch--mobile{display:block}}.course-detail-page{min-height:100vh;color:var(--prototype-text-primary);background:var(--prototype-surface-page)}.course-detail-branch{min-height:100vh;background:var(--prototype-surface-page)}.course-detail-branch--desktop{display:block;min-width:1140px}.course-detail-branch--mobile{display:none;width:390px;max-width:100%;padding-bottom:127px;overflow-x:clip}.course-detail-branch--desktop .promo-bar--desktop{position:sticky;z-index:30;top:0}.course-detail-branch--desktop [data-course-detail-section=promo-header]{display:contents}.course-detail-branch--desktop .site-header--desktop{position:relative}.course-detail-branch--desktop .site-header__search-region{flex:0 0 618px;max-width:618px;margin-left:25px}.course-detail-path,.course-detail-path nav ol,.course-detail-share,.course-detail-summary__badges,.course-detail-summary__actions,.course-detail-summary__progress-row,.course-detail-anchors__inner,.course-detail-section-heading,.course-detail-qna__controls,.course-detail-question header,.course-detail-question footer,.course-detail-pagination,.purchase-panel__price,.purchase-panel__offer,.purchase-panel__bundle-actions,.purchase-bar__actions{display:flex;align-items:center}.course-detail-path{justify-content:space-between;color:var(--prototype-text-secondary);font-size:14px;line-height:22px}.course-detail-path nav ol{gap:8px;padding:0;margin:0;list-style:none}.course-detail-path li{display:flex;align-items:center;gap:8px}.course-detail-path a{text-decoration:none}.course-detail-share{position:relative;gap:8px}.course-detail-share button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;border:0;color:var(--prototype-text-secondary);background:#f2f2f2;cursor:pointer}.course-detail-share__options{position:absolute;z-index:4;top:42px;right:0;width:max-content;max-width:240px;padding:10px 12px;border:1px solid var(--prototype-border-default);border-radius:var(--prototype-radius-8);color:var(--prototype-text-primary);background:var(--prototype-surface-card);box-shadow:var(--prototype-shadow-floating);font-size:13px;line-height:20px}.course-detail-share__options[hidden]{display:none}.course-detail-hero--desktop{width:var(--prototype-content-desktop);margin:0 auto;padding:36px 0 70px}.course-detail-hero--desktop:has(.course-detail-summary[data-course-summary-status=launched]){padding-bottom:64px}.course-detail-hero--desktop .course-detail-path{margin-bottom:38px}.course-detail-hero__grid{display:grid}.course-detail-hero--desktop .course-detail-hero__grid{grid-template-columns:653px 463px;gap:24px}.course-detail-preview{position:relative;margin:0;overflow:hidden;border-radius:var(--prototype-radius-12);color:#fff;background:#163b3b}.course-detail-hero--desktop .course-detail-preview{width:653px;height:367px}.course-detail-preview>img{width:100%;height:100%;object-fit:cover}.course-detail-preview>button{position:absolute;top:50%;left:50%;display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;padding:0 0 0 4px;border:1px solid rgb(255 255 255 / 75%);border-radius:50%;color:#fff;background:#0000007a;transform:translate(-50%,-50%);cursor:pointer}.course-detail-preview[data-preview-state=playing]>button{background:var(--prototype-brand-dark)}.course-detail-preview__controls{position:absolute;right:18px;bottom:14px;left:18px;display:flex;align-items:center;gap:12px;padding:0;margin:0;border:0;font-size:12px}.course-detail-preview__track{flex:1;height:3px;border-radius:999px;background:#ffffffb8}.course-detail-summary--desktop{position:relative;width:463px;height:367px;padding-top:11px}.course-detail-summary__instructor{margin:0 0 8px;color:var(--prototype-brand-dark);font-size:15px;font-weight:600;line-height:24px}.course-detail-summary h1{margin:0;color:#3c3c3c;font-weight:600}.course-detail-summary--desktop h1{font-size:38px;line-height:52px}.course-detail-summary__description{margin:14px 0 0;color:var(--prototype-text-secondary);font-size:16px;line-height:26px}.course-detail-summary__more{padding:4px 0;border:0;color:var(--prototype-brand-dark);background:transparent;font-weight:600;cursor:pointer}.course-detail-summary__badges{gap:8px;margin-top:16px}.course-detail-summary__badges span,.purchase-panel__offer span{display:inline-flex;align-items:center;min-height:28px;padding:3px 10px;border-radius:4px;color:#d97008;background:#fff3df;font-size:13px;font-weight:600}.course-detail-summary__proof{margin-top:20px}.course-detail-summary__progress-row{justify-content:space-between;font-size:14px}.course-detail-summary__proof progress{width:100%;height:6px;margin-top:8px;border:0;border-radius:999px;overflow:hidden;accent-color:var(--prototype-brand-primary)}.course-detail-summary__status-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 16px;margin-top:10px;color:var(--prototype-text-secondary);font-size:13px;line-height:20px}.course-detail-summary__rating{display:flex;align-items:center;gap:6px;color:var(--prototype-status-rating)}.course-detail-summary__rating span{color:var(--prototype-text-secondary)}.course-detail-summary__proof small{display:block;margin-top:8px;color:var(--prototype-text-secondary);font-size:12px}.course-detail-summary__actions{gap:10px;margin-top:14px}.course-detail-summary--desktop .course-detail-summary__actions{position:absolute;top:305px;right:0;margin-top:0}.course-detail-summary--desktop [data-summary-proof=fundraising-progress]{margin-top:41px}.course-detail-summary--desktop [data-summary-proof=fundraising-progress] progress{width:290px}.course-detail-summary--desktop [data-summary-proof=launched-rating]{margin-top:59px}.course-detail-summary__actions button{display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:6px 12px;border:1px solid var(--prototype-brand-primary);border-radius:var(--prototype-radius-8);color:var(--prototype-brand-dark);background:var(--prototype-surface-card);font-size:14px;text-decoration:none;cursor:pointer}.course-detail-anchors{position:sticky;z-index:16;border-top:1px solid var(--prototype-border-default);border-bottom:1px solid var(--prototype-border-default);background:var(--prototype-surface-card);box-shadow:0 3px 8px #0000000d}.course-detail-anchors--desktop{top:45px;height:60px}.course-detail-anchors--desktop .course-detail-anchors__inner{width:var(--prototype-content-desktop);height:60px;margin:0 auto;gap:34px}.course-detail-anchors a,.course-detail-anchors button{position:relative;display:inline-flex;align-items:center;height:100%;border:0;color:var(--prototype-text-secondary);background:transparent;text-decoration:none;cursor:pointer}.course-detail-anchors a[aria-current=location]{color:var(--prototype-brand-dark);font-weight:600}.course-detail-anchors a[aria-current=location]:after{position:absolute;right:0;bottom:0;left:0;height:3px;background:var(--prototype-brand-primary);content:""}.course-detail-anchors__favorite{gap:6px;margin-left:auto}.course-detail-body--desktop{display:grid;grid-template-columns:686px 424px;gap:30px;align-items:start;width:var(--prototype-content-desktop);margin:0 auto;padding:48px 0 80px}.course-detail-body--desktop>section{grid-column:1}.course-detail-branch--desktop :is(.course-detail-about,.course-detail-curriculum,.course-detail-qna){scroll-margin-top:130px}.course-detail-content-card{min-width:0}.course-detail-content-card+.course-detail-content-card{margin-top:56px}.course-detail-content-card h2,.course-detail-related h2,.course-detail-tags h2{margin:0;color:#3c3c3c;font-size:24px;font-weight:600;line-height:34px}.course-detail-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 30px;padding:28px 0;margin:0}.course-detail-facts>div{display:grid;grid-template-columns:34px minmax(0,1fr);grid-template-rows:auto auto;column-gap:12px}.course-detail-facts svg{grid-row:1 / span 2;color:var(--prototype-brand-dark)}.course-detail-facts dt{color:var(--prototype-text-secondary);font-size:14px;line-height:20px}.course-detail-facts dd{margin:2px 0 0;color:#3c3c3c;font-size:16px;line-height:24px}.course-detail-story{padding:26px 24px 24px;border-radius:var(--prototype-radius-12);background:var(--prototype-surface-card);box-shadow:var(--prototype-shadow-card)}.course-detail-story h3{margin:0;color:#3c3c3c;font-size:20px;line-height:30px}.course-detail-story__intro{margin:12px 0 22px;font-size:16px;line-height:28px}.course-detail-story__panels{display:grid;gap:24px;transition:max-height .18s ease}.course-detail-story__panels[data-expanded=false]{max-height:1120px;overflow:hidden}.course-detail-story__panels[data-expanded=true]{max-height:2400px}.course-detail-story__panels article{overflow:hidden;border:1px solid var(--prototype-border-default);border-radius:var(--prototype-radius-12);background:#fff}.course-detail-story__panels img{display:block;width:100%;aspect-ratio:4 / 3;object-fit:cover}.course-detail-story__panels article>div{padding:18px 20px 20px}.course-detail-story__panels h4{margin:0;color:#3c3c3c;font-size:20px;line-height:30px}.course-detail-story__panels p{margin:8px 0 0;font-size:15px;line-height:26px}.course-detail-story__expand{display:block;min-width:184px;min-height:42px;padding:8px 18px;margin:28px auto;border:1px solid var(--prototype-brand-primary);border-radius:var(--prototype-radius-8);color:var(--prototype-brand-dark);background:#fff;cursor:pointer}.course-detail-disclosures{border-top:1px solid var(--prototype-border-default)}.course-detail-disclosures details{padding:0 4px;border-bottom:1px solid var(--prototype-border-default)}.course-detail-disclosures summary{padding:18px 0;color:#3c3c3c;font-size:18px;font-weight:600;cursor:pointer}.course-detail-disclosures p{margin:-4px 0 20px;font-size:15px;line-height:27px}.course-detail-section-heading{justify-content:space-between;gap:20px;margin-bottom:22px}.course-detail-section-heading p{margin:4px 0 0;color:var(--prototype-text-secondary);font-size:14px}.course-detail-section-heading button{padding:7px 10px;border:0;color:var(--prototype-brand-dark);background:transparent;cursor:pointer}.course-detail-curriculum__modules{display:grid;gap:16px}.course-detail-curriculum__modules details{overflow:hidden;border-radius:var(--prototype-radius-8);background:var(--prototype-brand-light)}.course-detail-curriculum__modules summary{display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:12px;min-height:58px;padding:9px 16px;cursor:pointer;list-style:none}.course-detail-curriculum__modules summary::-webkit-details-marker{display:none}.course-detail-curriculum__number{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;color:#fff;background:var(--prototype-brand-primary);font-size:13px;font-weight:600}.course-detail-curriculum__modules summary strong{color:#3c3c3c;font-size:18px;line-height:26px}.course-detail-curriculum__modules summary>span:last-child{color:var(--prototype-text-secondary);font-size:13px}.course-detail-curriculum__modules ol{padding:4px 16px 14px 62px;margin:0;background:#fff;list-style:none}.course-detail-curriculum__modules li{display:grid;grid-template-columns:18px minmax(0,1fr) auto;align-items:center;gap:10px;min-height:44px;border-bottom:1px solid var(--prototype-border-default);font-size:15px;line-height:24px}.course-detail-curriculum__modules li:last-child{border-bottom:0}.course-detail-curriculum__modules li svg{color:var(--prototype-brand-dark)}.course-detail-curriculum__modules time{color:var(--prototype-text-secondary);font-size:13px}.course-detail-teacher__card{display:grid;grid-template-columns:166px minmax(0,1fr);gap:26px;padding:24px;margin-top:22px;border-radius:var(--prototype-radius-12);background:var(--prototype-surface-card);box-shadow:var(--prototype-shadow-card)}.course-detail-teacher__card>img{width:166px;height:208px;border-radius:var(--prototype-radius-12);object-fit:cover}.course-detail-teacher__card h3{margin:4px 0 0;color:#3c3c3c;font-size:24px;line-height:32px}.course-detail-teacher__card p{margin:0;font-size:14px;line-height:25px}.course-detail-teacher__card h3+dl{display:flex;gap:18px;margin:15px 0}.course-detail-teacher__card dl div{min-width:62px}.course-detail-teacher__card dt{color:var(--prototype-text-secondary);font-size:12px}.course-detail-teacher__card dd{margin:2px 0 0;color:#3c3c3c;font-weight:600}.course-detail-teacher__card a{display:inline-flex;align-items:center;gap:4px;margin-top:14px;color:var(--prototype-brand-dark);font-weight:600;text-decoration:none}.course-detail-qna__heading{align-items:flex-start}.course-detail-qna__controls{gap:10px}.course-detail-qna__controls label{display:flex;align-items:center;gap:8px;width:230px;height:42px;padding:0 12px;border:1px solid var(--prototype-border-default);border-radius:var(--prototype-radius-8);background:#fff}.course-detail-qna__controls input{min-width:0;border:0;outline:0}.course-detail-qna__controls select{height:42px;border:0;background:transparent}.course-detail-qna__login{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 18px;margin-bottom:22px;border-radius:var(--prototype-radius-8);background:var(--prototype-brand-light);font-size:14px}.course-detail-qna__login p{margin:0}.course-detail-qna__login a{color:var(--prototype-brand-dark);font-weight:600;white-space:nowrap}.course-detail-qna__questions{display:grid;gap:18px}.course-detail-question{padding:20px;border-radius:var(--prototype-radius-12);background:var(--prototype-surface-card);box-shadow:var(--prototype-shadow-card)}.course-detail-question header{gap:12px}.course-detail-question header img{width:48px;height:48px;border-radius:50%;object-fit:cover}.course-detail-question header div{display:grid;gap:2px}.course-detail-question time{color:var(--prototype-text-secondary);font-size:13px}.course-detail-question__body{margin:14px 0;color:#3c3c3c;font-size:16px;line-height:26px}.course-detail-question__answer{padding:16px;border-radius:var(--prototype-radius-8);background:#f5f7f9}.course-detail-question__answer strong{color:var(--prototype-brand-dark);font-size:14px}.course-detail-question__answer p{margin:8px 0 0;font-size:14px;line-height:25px}.course-detail-question footer{justify-content:space-between;margin-top:14px}.course-detail-question footer button{padding:4px;border:0;color:var(--prototype-text-secondary);background:transparent;cursor:pointer}.course-detail-question__feedback{min-height:20px;margin:8px 0 0;color:var(--prototype-brand-dark);font-size:13px;line-height:20px}.course-detail-question__feedback:empty{display:none;min-height:0;margin:0}.course-detail-pagination{justify-content:center;gap:10px;margin-top:24px}.course-detail-pagination button{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--prototype-border-default);border-radius:4px;color:var(--prototype-brand-dark);background:#fff;cursor:pointer}.course-detail-pagination button:disabled{color:var(--prototype-text-secondary);background:var(--prototype-surface-page);cursor:not-allowed;opacity:.55}.course-detail-pagination span{font-size:14px}.course-detail-purchase-rail{position:sticky;top:139px;grid-row:1 / span 4;grid-column:2;align-self:start}.purchase-panel{display:grid;gap:16px}.purchase-panel--desktop{width:424px}.purchase-panel__card{padding:24px;border-radius:var(--prototype-radius-12);background:var(--prototype-surface-card);box-shadow:var(--prototype-shadow-card)}.purchase-panel__card h3{margin:0;color:#3c3c3c;font-size:18px;line-height:27px}.purchase-panel__price{gap:12px;margin-top:18px}.purchase-panel__price strong{color:#3c3c3c;font-size:30px;line-height:38px}.purchase-panel__price del{color:var(--prototype-text-secondary);font-size:13px}.purchase-panel__offer{gap:10px;margin-top:12px}.purchase-panel__offer p,.purchase-panel__countdown{margin:0;font-size:13px}.purchase-panel__primary-action,.purchase-panel__bundle-actions>a:first-child{display:flex;align-items:center;justify-content:center;min-height:44px;margin-top:18px;border-radius:var(--prototype-radius-8);color:#fff;background:var(--prototype-brand-primary);font-weight:600;text-decoration:none}.purchase-panel__bundle-discount{margin:5px 0 18px;color:var(--prototype-text-secondary);font-size:13px}.purchase-panel__bundle-courses{display:grid;gap:10px;padding:14px;border-radius:var(--prototype-radius-12);background:#f5f7f9}.purchase-panel__bundle-course{display:grid;grid-template-columns:104px minmax(0,1fr);align-items:center;gap:12px}.purchase-panel__bundle-course img{width:104px;height:64px;border-radius:6px;object-fit:cover}.purchase-panel__bundle-course span{color:#3c3c3c;font-size:14px;line-height:21px}.purchase-panel__bundle-actions{gap:10px;margin-top:16px}.purchase-panel__bundle-actions>a:first-child{flex:1;margin-top:0}.purchase-panel__cart-action{display:inline-flex;align-items:center;justify-content:center;width:46px;height:44px;border:1px solid var(--prototype-brand-primary);border-radius:var(--prototype-radius-8);color:var(--prototype-brand-dark);text-decoration:none}.purchase-panel__cart-action span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.course-detail-related--desktop,.course-detail-tags{width:var(--prototype-content-desktop);margin-right:auto;margin-left:auto}.course-detail-related--desktop{padding:72px 0;background:var(--prototype-surface-card)}.course-detail-related__grid{display:grid}.course-detail-related--desktop .course-detail-related__grid{grid-template-columns:repeat(4,267px);gap:24px;margin-top:24px}.course-detail-related--desktop .course-card--compact-desktop{width:267px;overflow:visible;border-radius:0;background:transparent;box-shadow:none}.course-detail-related--desktop .course-card--compact-desktop .course-card__cover{width:267px;height:166px}.course-detail-related--desktop .course-card--compact-desktop .course-card__body{padding:10px 0 0}.course-detail-tags{padding:44px 0 56px}.course-detail-tags>div{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.course-detail-tags a{padding:7px 14px;border-radius:999px;color:var(--prototype-brand-dark);background:#fff;font-size:14px;text-decoration:none}.purchase-bar--mobile{position:fixed;z-index:50;right:0;bottom:0;left:0;width:100%;max-width:390px;height:127px;padding:12px 16px;border-top:1px solid var(--prototype-border-default);border-radius:14px 14px 0 0;background:#fff;box-shadow:0 -4px 14px #0000001a}.purchase-bar__offer{height:28px;color:#d97008;font-size:13px;font-weight:600}.purchase-bar__actions{gap:8px;height:70px;transform:translateY(13px)}.purchase-bar__price{display:grid;min-width:58px}.purchase-bar__price del{color:var(--prototype-text-secondary);font-size:11px}.purchase-bar__price strong{color:#3c3c3c;font-size:19px}.purchase-bar__icon-action{display:inline-flex;flex:0 0 auto;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--prototype-brand-primary);border-radius:var(--prototype-radius-8);color:var(--prototype-brand-dark);background:#fff;text-decoration:none;cursor:pointer}.purchase-bar__icon-action span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.purchase-bar__primary-action{display:inline-flex;flex:0 0 150px;align-items:center;justify-content:center;width:150px;height:42px;border-radius:var(--prototype-radius-8);color:#fff;background:var(--prototype-brand-primary);font-weight:600;text-decoration:none}.course-detail-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@supports not (position: sticky){.course-detail-purchase-rail,.course-detail-anchors{position:static}}@supports not (position: fixed){.purchase-bar--mobile{position:sticky}}@media(max-width:767px){.course-detail-branch--desktop{display:none}.course-detail-branch--mobile{display:block}.course-detail-branch--mobile .site-header--mobile{position:relative;top:auto}.course-detail-branch--mobile .promo-bar--mobile,.course-detail-branch--mobile .promo-bar--mobile .promo-bar__inner{min-height:152px}.course-detail-hero--mobile{padding:18px 16px 38px;background:#fff}.course-detail-hero--mobile .course-detail-path{margin-bottom:24px}.course-detail-path--mobile nav:first-child{min-width:0}.course-detail-path--mobile ol{max-width:250px;overflow:hidden;white-space:nowrap}.course-detail-path--mobile li:last-child{display:none}.course-detail-share{gap:4px}.course-detail-share button{width:30px;height:30px}.course-detail-hero--mobile .course-detail-hero__grid{grid-template-columns:343px}.course-detail-hero--mobile .course-detail-preview{width:343px;height:193px}.course-detail-preview>button{width:52px;height:52px}.course-detail-summary--mobile{width:343px;padding-top:22px}.course-detail-summary--mobile h1{font-size:25px;line-height:36px}.course-detail-summary__description[data-expanded=false]{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:4}.course-detail-summary__status-grid{grid-template-columns:1fr}.course-detail-anchors--mobile{top:0;height:50px}.course-detail-anchors--mobile .course-detail-anchors__inner{width:100%;height:50px}.course-detail-anchors--mobile a{flex:1;justify-content:center;font-size:14px}.course-detail-body--mobile{display:block;padding:38px 16px 64px}.course-detail-branch--mobile :is(.course-detail-about,.course-detail-curriculum,.course-detail-qna){scroll-margin-top:62px}.course-detail-content-card+.course-detail-content-card{margin-top:48px}.course-detail-facts{grid-template-columns:1fr;gap:20px;padding:26px 0}.course-detail-story{padding:20px 16px}.course-detail-story__panels{gap:18px}.course-detail-story__panels[data-expanded=false]{max-height:920px}.course-detail-story__panels article>div{padding:15px 16px 18px}.course-detail-story__panels h4{font-size:18px;line-height:27px}.course-detail-curriculum__modules summary{grid-template-columns:32px minmax(0,1fr) auto;min-height:58px;padding:10px 14px}.course-detail-curriculum__modules summary>span:last-child{grid-column:auto}.course-detail-curriculum__modules ol{padding:4px 14px 14px}.course-detail-curriculum__modules li{grid-template-columns:18px minmax(0,1fr) auto;min-height:58px}.course-detail-teacher__card{grid-template-columns:1fr;gap:12px;padding:16px}.course-detail-teacher__card>img{width:96px;height:120px}.course-detail-teacher__card h3+dl{margin:8px 0}.course-detail-teacher__card p{line-height:22px}.course-detail-teacher__card a{margin-top:8px}.course-detail-qna__heading,.course-detail-qna__controls,.course-detail-qna__login{align-items:stretch;flex-direction:column}.course-detail-qna__controls label,.course-detail-qna__controls select{width:100%}.course-detail-qna__login{display:flex;align-items:center;flex-direction:row;justify-content:space-between;min-height:74px;gap:8px;padding:10px 12px;font-size:13px;line-height:20px}.course-detail-question{padding:16px 14px}.course-detail-question__body{margin:12px 0}.course-detail-question__answer{padding:12px}.course-detail-purchase-mobile{margin-top:48px}.purchase-panel--mobile{width:358px}.course-detail-branch--mobile .purchase-panel__bundle{min-height:466px}.purchase-panel__card{padding:20px}.purchase-panel__bundle-course{grid-template-columns:96px minmax(0,1fr)}.purchase-panel__bundle-course img{width:96px;height:60px}.course-detail-related--mobile,.course-detail-tags{width:390px;padding-right:16px;padding-left:16px}.course-detail-related--mobile{padding-top:54px;padding-bottom:54px;background:#fff}.course-detail-related--mobile .course-detail-related__grid{grid-template-columns:1fr;gap:0;margin-top:24px}.course-detail-related--mobile .course-card--mobile-row{display:flex;width:358px;min-height:150px;padding:8px 0;border-bottom:1px solid var(--prototype-border-default);border-radius:0;background:transparent;box-shadow:none}.course-detail-related--mobile .course-card--mobile-row .course-card__cover-link{flex:0 0 108px}.course-detail-related--mobile .course-card--mobile-row .course-card__cover{width:108px;height:108px;border-radius:7px}.course-detail-related--mobile .course-card--mobile-row .course-card__body{flex:1;min-width:0;padding:0 0 0 12px}.course-detail-related--mobile .course-card--mobile-row .course-card__eyebrow{display:none}.course-detail-related--mobile .course-card--mobile-row .course-card__title{margin-top:0;font-size:16px;line-height:22px;-webkit-line-clamp:2}.course-detail-related--mobile .course-card--mobile-row .course-card__instructor{margin-top:3px;font-size:12px;line-height:18px}.course-detail-related--mobile .course-card--mobile-row .course-card__launched-meta{display:flex;flex-wrap:wrap;gap:2px 6px;margin-top:4px;color:var(--prototype-text-secondary);font-size:12px;line-height:18px}.course-detail-related--mobile .course-card--mobile-row .course-card__fundraising-meta{margin-top:4px;font-size:12px;line-height:18px}.course-detail-related--mobile .course-card--mobile-row .course-card__progress{height:4px;margin-top:3px}.course-detail-related--mobile .course-card--mobile-row .course-card__price-row{gap:6px;margin-top:4px}.course-detail-related--mobile .course-card--mobile-row .course-card__price-row strong{font-size:16px;line-height:20px}.course-detail-related--mobile .course-card--mobile-row .course-card__price-row span{display:none}.course-detail-tags{padding-top:42px;padding-bottom:30px}.course-detail-tags>div{display:grid;grid-template-columns:repeat(3,max-content);justify-content:start;gap:10px 8px}.course-detail-tags a{padding:8px 16px}.course-detail-branch--mobile .site-footer{padding-bottom:127px}}@media(min-width:768px){.purchase-bar--mobile{display:none}}