.course-detail-page{background:#fff}.course-shell{padding:28px 0 54px}.course-loading{min-height:55vh;display:grid;place-items:center;color:var(--muted)}.course-breadcrumb{font-size:12px;color:#71808d;margin-bottom:16px}.course-breadcrumb a{color:var(--green);font-weight:800}.course-top{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px;align-items:start}.course-category{display:inline-flex;padding:6px 10px;border-radius:4px;background:#EFF7EC;color:#275A33;font-size:12px;font-weight:900;margin-bottom:12px}.course-title{font-size:clamp(34px,4vw,52px);line-height:1.03;letter-spacing:-.035em;margin:0 0 12px}.course-lead{font-size:17px;line-height:1.6;color:#42596d;margin:0 0 18px;max-width:820px}.course-facts{display:flex;gap:18px;flex-wrap:wrap;margin:0 0 18px;color:#53687a;font-size:13px}.course-facts b{color:var(--navy)}.course-media{border:1px solid var(--line);background:#f3f7f5;aspect-ratio:16/9;overflow:hidden;border-radius:10px}.course-media img{width:100%;height:100%;object-fit:cover}.course-buybox{position:sticky;top:96px;border:1px solid #d9e3de;border-radius:10px;padding:22px;background:#fff;box-shadow:0 10px 30px rgba(11,34,57,.07)}.course-price{font-size:30px;line-height:1;font-weight:950;color:#075f4a;margin-bottom:18px}.course-buybox .btn{width:100%;justify-content:center;margin:0 0 10px}.course-buybox .outline-btn{margin:0;display:flex;justify-content:center;align-items:center;min-height:48px}.course-buy-benefits{display:grid;gap:11px;margin-top:18px;padding-top:17px;border-top:1px solid var(--line);font-size:13px;color:#42596d}.course-buy-benefits span{display:flex;gap:9px;align-items:center}.course-buy-benefits i{font-style:normal;color:var(--green);font-weight:900}.course-quick{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:22px 0}.course-quick-item{border:1px solid var(--line);padding:14px 15px;border-radius:8px;background:#fbfcfb}.course-quick-item small{display:block;color:#71808d;margin-bottom:5px}.course-quick-item strong{font-size:14px}.course-tabs{display:flex;gap:28px;border-bottom:1px solid var(--line);margin:28px 0 24px;overflow:auto}.course-tabs a{white-space:nowrap;padding:12px 0;color:#526579;font-weight:800;font-size:13px;border-bottom:2px solid transparent}.course-tabs a:hover{color:var(--green);border-color:var(--green)}.course-content-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px;align-items:start}.course-main{min-width:0}.course-section{scroll-margin-top:105px;padding:0 0 28px;margin-bottom:28px;border-bottom:1px solid #edf1f3}.course-section:last-child{border-bottom:0}.course-section h2{font-size:26px;margin:0 0 14px}.course-copy{font-size:15px;line-height:1.72;color:#33485c}.course-copy p:first-child{margin-top:0}.course-objectives{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.course-objective{display:flex;gap:10px;border:1px solid var(--line);border-radius:8px;padding:13px;background:#fff;font-size:14px;line-height:1.45}.course-objective:before{content:'✓';color:var(--green);font-weight:950}.course-syllabus{display:grid;gap:8px}.course-topic{border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden}.course-topic summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;font-weight:850;list-style:none}.course-topic summary::-webkit-details-marker{display:none}.course-topic summary:after{content:'+';font-size:20px;color:var(--green)}.course-topic[open] summary:after{content:'−'}.course-topic-meta{font-size:11px;color:#71808d;font-weight:700}.course-lessons{border-top:1px solid var(--line);padding:8px 16px 12px}.course-lesson{padding:8px 0;border-bottom:1px solid #edf1f3;font-size:13px;color:#42596d}.course-lesson:last-child{border-bottom:0}.course-related{display:grid;gap:10px;position:sticky;top:96px}.course-related h3{font-size:18px;margin:0 0 5px}.related-card{display:grid;grid-template-columns:88px 1fr;gap:12px;border:1px solid var(--line);border-radius:8px;padding:8px;background:#fff}.related-card img{width:88px;height:66px;object-fit:cover;border-radius:6px;background:#eef3f1}.related-card strong{font-size:13px;line-height:1.25;display:block;margin:2px 0 5px}.related-card small{font-size:11px;color:#71808d}.related-card a{font-size:11px;color:var(--green);font-weight:850}.course-empty{padding:80px 0;text-align:center}.course-empty h1{font-size:34px}.course-empty p{color:var(--muted)}
@media(max-width:920px){.course-top,.course-content-grid{grid-template-columns:1fr}.course-buybox,.course-related{position:static}.course-buybox{order:-1}.course-top-main{display:contents}.course-top>.course-buybox{order:0}.course-objectives{grid-template-columns:1fr}.course-related{grid-template-columns:repeat(3,1fr)}.course-related h3{grid-column:1/-1}.related-card{grid-template-columns:1fr}.related-card img{width:100%;height:120px}}
@media(max-width:620px){.course-shell{padding-top:18px}.course-top{gap:20px}.course-title{font-size:34px}.course-lead{font-size:15px}.course-buybox{padding:18px}.course-quick{grid-template-columns:repeat(2,1fr)}.course-tabs{gap:20px}.course-related{grid-template-columns:1fr}.related-card{grid-template-columns:82px 1fr}.related-card img{width:82px;height:62px}}
@media(max-width:920px){.course-top-main{display:contents}.course-buybox{order:1}.course-media{order:2}}