.collection-art{position:relative;display:flex;align-items:center;justify-content:center;min-height:260px;overflow:hidden;isolation:isolate}.collection-art-orbit{position:absolute;width:290px;height:180px;border:1px dashed rgb(var(--rm-primary)/.24);border-radius:50%;transform:rotate(-25deg);z-index:-1}.collection-art-sheet{width:112px;height:144px;flex-shrink:0;padding:24px 18px;border:1px solid rgb(var(--rm-border));border-radius:14px;background:rgb(var(--rm-surface));transform:rotate(-12deg);box-shadow:0 8px 24px rgb(var(--rm-primary)/.06)}.collection-art-sheet+.collection-art-sheet{margin-left:-36px;transform:translateY(-12px)}.collection-art-sheet:last-child{transform:rotate(12deg)}.collection-art-sheet span{display:block;width:24px;height:24px;border:2px solid rgb(var(--rm-primary)/.55);border-radius:6px;margin-bottom:16px}.collection-art-sheet i{display:block;height:4px;background:rgb(var(--rm-primary)/.14);border-radius:4px;margin-top:8px}.collection-art-sheet i:last-child{width:60%}.collection-empty{padding:40px;border:1px solid rgb(var(--rm-border));border-radius:24px;background:rgb(var(--rm-surface))}.collection-empty h2,.collection-empty h3{font-size:24px;line-height:1.3;font-weight:600}.collection-empty p{max-width:620px;margin-block:16px 24px;color:rgb(var(--rm-fg-muted))}.collection-hero{display:grid;grid-template-columns:1.4fr 1fr;gap:56px;align-items:center;padding-block:32px 64px}.collection-hero>div{min-width:0}.collection-hero>div>p{color:rgb(var(--rm-fg-muted))}.collection-hero .blog-meta{margin-top:24px}.collection-hero .collection-art{border-radius:24px;min-height:320px}.collection-selection{display:grid;grid-template-columns:280px minmax(0,1fr);gap:56px;align-items:start}.collection-context h2{font-size:28px;font-weight:600;margin-bottom:24px}.collection-context p{color:rgb(var(--rm-fg-muted));line-height:1.8}.collection-context .collection-hint{font-size:14px;border-top:1px solid rgb(var(--rm-border));padding-top:24px;margin-top:24px}.collection-courses{display:grid;gap:24px;list-style:none;margin:0;padding:0}.collection-course{display:flex;gap:24px;padding:32px;border-radius:24px;background:rgb(var(--rm-surface));border:1px solid rgb(var(--rm-border))}.collection-course-copy{min-width:0;overflow-wrap:anywhere}.collection-number{color:rgb(var(--rm-primary));font-size:14px;padding-top:10px}.collection-course h3{font-size:24px;font-weight:600;line-height:1.3}.collection-course h3 a{display:inline-flex;align-items:center;min-height:44px}.collection-course h3 a:hover{color:rgb(var(--rm-primary));text-decoration:underline}.collection-description{color:rgb(var(--rm-fg-muted));margin-top:12px;line-height:1.7}.collection-course .blog-meta{margin-block:16px 24px}.collection-note{padding:20px;background:rgb(var(--rm-home-mint));border-radius:16px;line-height:1.7}.collection-note>span{display:block;color:rgb(var(--rm-primary));font-size:12px;font-weight:600;margin-bottom:8px}.collection-back{margin-block:40px 0}@media (max-width:800px){.collection-hero{gap:32px;grid-template-columns:1fr;padding-bottom:40px}.collection-hero .collection-art{min-height:240px}.collection-selection{grid-template-columns:1fr;gap:32px}}@media (max-width:540px){.collection-course,.collection-empty{padding:24px}.collection-course{flex-direction:column;gap:8px}.collection-number{padding:0}.collection-course h3{font-size:22px}}