.course-link{border:0;background:#edf5f1;color:var(--green);font-family:inherit;font-weight:900;padding:10px 12px;border-radius:9px;text-decoration:none;font-size:13px}.course-page{background:#fff}.course-hero{background:linear-gradient(180deg,#f6faf8 0,#fff 100%);border-bottom:1px solid var(--line);padding:30px 0 48px}.breadcrumbs{display:flex;gap:9px;align-items:center;font-size:12px;color:var(--muted);margin-bottom:26px}.breadcrumbs a{color:var(--green);text-decoration:none}.course-hero-grid{display:grid;grid-template-columns:1fr 1.15fr .72fr;gap:28px;align-items:start}.course-preview-card{border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}.preview-cover{height:340px;background:linear-gradient(145deg,#082f2c,#0e7353 72%,#e4b34b);position:relative;color:#fff;padding:22px;display:flex;align-items:center;justify-content:center}.preview-cover:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 18%,rgba(255,255,255,.16),transparent 26%),linear-gradient(180deg,transparent,rgba(0,0,0,.2));pointer-events:none}.preview-badge{position:absolute;top:18px;left:18px;background:#fff;color:var(--green);padding:7px 12px;border-radius:99px;font-size:11px;font-weight:900;z-index:2}.preview-center{position:relative;z-index:2;text-align:center;display:flex;flex-direction:column;align-items:center}.trailer-play{width:72px;height:72px;border-radius:50%;border:2px solid rgba(255,255,255,.65);background:rgba(255,255,255,.17);color:#fff;font-size:24px;cursor:pointer;margin-bottom:16px;backdrop-filter:blur(8px)}.preview-center strong{font-size:18px}.preview-center small{opacity:.75;margin-top:5px}.preview-logo{position:absolute;right:18px;bottom:15px;z-index:2;background:#fff;border-radius:12px;padding:7px}.preview-logo img{display:block;width:44px;height:44px;object-fit:contain}.course-summary{padding:4px 0}.course-category-label{display:inline-block;background:#e9f5ef;color:var(--green);font-weight:900;font-size:11px;padding:7px 10px;border-radius:99px}.course-summary h1{font-size:40px;line-height:1.16;margin:14px 0}.course-lead{color:var(--muted);font-size:16px;margin-bottom:16px}.rating-row{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:10px 0 18px;border-bottom:1px solid var(--line)}.stars{color:#e3aa2d;letter-spacing:1px}.course-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:20px 0}.course-facts div{background:#f7faf8;border:1px solid var(--line);border-radius:14px;padding:13px}.course-facts b,.course-facts span{display:block}.course-facts b{font-size:14px;color:#123e32}.course-facts span{font-size:11px;color:var(--muted);margin-top:3px}.teacher-inline{display:flex;align-items:center;gap:12px}.teacher-avatar,.teacher-big-avatar{display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,#0d6b4d,#e0b34f);color:#fff;font-weight:900}.teacher-avatar{width:48px;height:48px}.teacher-inline div:last-child{display:flex;flex-direction:column}.teacher-inline span,.teacher-inline small{font-size:11px;color:var(--muted)}.purchase-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow);position:sticky;top:104px}.price-line strong{display:block;font-size:34px;color:var(--green)}.price-line span{font-size:11px;color:var(--muted)}.btn-buy{width:100%;margin:18px 0}.purchase-features{display:flex;flex-direction:column;gap:10px;font-size:12px;color:#40574e}.secure-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);text-align:center}.course-content-section{padding:54px 0 70px}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px}.tabbar{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:26px;overflow:auto}.tabbar button{border:0;background:none;padding:14px 16px;font-family:inherit;font-weight:900;color:#6d7d76;cursor:pointer;border-bottom:3px solid transparent;white-space:nowrap}.tabbar button.active{color:var(--green);border-color:var(--green)}.tab-panel{display:none}.tab-panel.active{display:block}.content-card{border:1px solid var(--line);border-radius:18px;padding:26px;margin-bottom:18px}.content-card h2{font-size:25px;margin:0 0 16px;color:#12362e}.content-card p{color:var(--muted)}.learn-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.learn-grid span{background:#f5f9f7;border-radius:12px;padding:13px;font-size:13px}.curriculum-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:18px}.curriculum-head h2{margin:0}.curriculum-head p{margin:4px 0 0;color:var(--muted);font-size:12px}.curriculum-head>span{font-size:11px;background:#fff5d8;color:#73540b;padding:7px 10px;border-radius:99px;font-weight:900}.module{border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden;background:#fff}.module-head{width:100%;border:0;background:#f7faf8;padding:14px 16px;display:flex;align-items:center;gap:12px;text-align:left;font-family:inherit;cursor:pointer}.module-num{width:31px;height:31px;display:grid;place-items:center;border-radius:50%;background:var(--gold2);font-weight:900}.module-head div{flex:1;display:flex;flex-direction:column}.module-head small{font-size:11px;color:var(--muted);margin-top:2px}.lesson-list{border-top:1px solid var(--line)}.lesson{display:grid;grid-template-columns:30px 1fr auto;gap:8px;align-items:center;padding:13px 16px;border-bottom:1px solid #edf2ef}.lesson:last-child{border-bottom:0}.lesson>span{color:var(--muted)}.lesson div{display:flex;flex-direction:column}.lesson small{font-size:10px;color:var(--muted)}.lesson time{font-size:11px;color:var(--muted)}.lesson.unlocked{background:#fbfffd}.lesson.unlocked>span{color:var(--green)}.teacher-card,.certificate-card{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:center}.teacher-big-avatar{width:96px;height:96px;font-size:24px}.certificate-mini{width:210px;aspect-ratio:1.42;background:#fffdf6;border:7px double #d9bd6d;padding:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;box-shadow:0 10px 28px rgba(0,0,0,.08)}.certificate-mini img{width:48px;height:48px;object-fit:contain}.certificate-mini span{font-size:9px;margin-top:6px}.certificate-mini strong{font-size:14px;color:var(--green)}.certificate-mini small{font-size:8px;color:#8b7c53}.course-side-col{display:flex;flex-direction:column;gap:16px}.side-card{border:1px solid var(--line);background:#f8fbf9;border-radius:16px;padding:20px}.side-card h3{margin-top:0}.side-card ul{padding-left:18px;margin-bottom:0}.side-card li,.side-card p{font-size:12px;color:var(--muted);margin:8px 0}.related-section{background:#f5f8f6;padding:62px 0}.dark-link{color:var(--green)}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.related-grid article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.related-grid article>span{font-size:10px;font-weight:900;color:var(--green);background:#eaf5f0;padding:6px 9px;border-radius:99px}.related-grid h3{margin:15px 0 6px}.related-grid p{color:var(--muted);font-size:12px}.related-grid strong{font-size:22px;color:var(--green)}@media(max-width:1050px){.course-hero-grid{grid-template-columns:1fr 1fr}.purchase-card{grid-column:1/-1;position:static}.content-layout{grid-template-columns:1fr}.course-side-col{display:grid;grid-template-columns:1fr 1fr}}@media(max-width:700px){.course-hero-grid{grid-template-columns:1fr}.preview-cover{height:280px}.course-summary h1{font-size:32px}.course-facts{grid-template-columns:1fr 1fr}.learn-grid,.related-grid,.course-side-col{grid-template-columns:1fr}.teacher-card,.certificate-card{grid-template-columns:1fr}.certificate-mini{width:100%;max-width:300px}.curriculum-head{display:block}.curriculum-head>span{display:inline-block;margin-top:10px}}