.learn-page{padding:clamp(24px,3vw,40px) 0 48px;min-height:100%;--learn-shadow:16px 16px 32px #bebebea6,-16px -16px 32px #ffffffe6;--learn-inset:inset 4px 4px 8px #00000014,inset -4px -4px 8px #ffffffe6}
.dark .learn-page{--learn-shadow:16px 16px 32px #0009,-16px -16px 32px #3c3c444d;--learn-inset:inset 4px 4px 8px #0009,inset -4px -4px 8px #5050584d}
.learn-container{max-width:1280px;margin:auto;padding:0 clamp(16px,3vw,32px);display:grid;gap:32px;min-width:0}
.learn-hero,.learn-panel{border-radius:32px;padding:clamp(24px,4vw,48px);background:var(--neo-surface,#e0e0e0);box-shadow:var(--learn-shadow);border:1px solid var(--neo-border,#ffffff66);min-width:0}
.dark .learn-hero,.dark .learn-panel,.dark .learn-card{background:var(--surface-bg-dark,#1f1f24)}
.learn-hero{background-image:radial-gradient(ellipse at top right,#8b5cf622,transparent 60%)}
.learn-hero-row{display:flex;justify-content:space-between;align-items:center;gap:32px}.learn-hero-row>div:first-child{min-width:0}
.learn-hero h1{font-size:clamp(32px,4vw,48px);line-height:1.3;margin:0 0 12px;font-weight:800}.learn-gradient{background:linear-gradient(135deg,#a855f7,#db2777);background-clip:text;-webkit-background-clip:text;color:transparent}.dark .learn-gradient{background-image:linear-gradient(135deg,#fef3c7,#fbbf24,#f472b6)}
.learn-english{font-size:20px;font-weight:600;letter-spacing:.05em;margin:0 0 10px;color:var(--neo-muted)}.learn-description{font-size:16px;line-height:1.8;color:var(--neo-muted);margin:8px 0}
.learn-stats{display:flex;gap:24px;align-items:center;flex-shrink:0;padding:20px 28px;border-radius:20px;box-shadow:var(--learn-inset);background:#ffffff40}.dark .learn-stats{background:#28282d80}.learn-stats>div{display:grid;gap:5px;text-align:center}.learn-stats strong{font-size:30px;color:#7c3aed}.dark .learn-stats strong{color:#c4b5fd}.learn-stats span{font-size:14px;color:var(--neo-muted)}.learn-stats i{width:1px;height:40px;background:#8b5cf64d}
.learn-search{position:relative;margin-top:26px;display:flex;align-items:center}.learn-search>span{position:absolute;left:20px;font-size:28px;color:var(--neo-muted)}.learn-search input{width:100%;min-height:58px;border-radius:16px;border:2px solid #8b5cf633;background:transparent;box-shadow:var(--learn-inset);color:var(--neo-text);font:inherit;font-size:16px;padding:16px 54px}.learn-search button{position:absolute;right:10px;width:44px;height:44px;border:0;border-radius:10px;background:#8b5cf61a;color:var(--neo-text);font-size:24px;cursor:pointer}.learn-search button[hidden]{display:none}
.learn-result{font-size:14px;margin:0 0 18px;color:var(--neo-muted)}.learn-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.learn-card{display:flex;flex-direction:column;position:relative;border-radius:24px;overflow:hidden;background:var(--neo-surface,#e0e0e0);border:1px solid var(--neo-border);box-shadow:var(--learn-shadow);text-decoration:none;color:var(--neo-text);transition:transform .2s;min-width:0}.learn-card:hover{text-decoration:none;transform:translateY(-7px)}
.learn-cover{height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;color:#fff}.learn-cover svg{width:62px;height:62px}.learn-cover>span{font-size:17px;font-weight:700;letter-spacing:.12em}.is-violet{background:linear-gradient(135deg,#667eea,#764ba2)}.is-rose{background:linear-gradient(135deg,#ec4899,#f97316)}.is-cyan{background:linear-gradient(135deg,#0ea5e9,#14b8a6)}
.learn-card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}.learn-category{font-size:14px;font-weight:600;color:#7c3aed;margin:16px 0 10px}.dark .learn-category{color:#c4b5fd}.learn-card .learn-category{margin:0}.learn-card h2{font-size:20px;line-height:1.5;margin:0}.learn-card p{font-size:16px;line-height:1.8;color:var(--neo-muted);margin:0}.learn-meta{display:flex;flex-wrap:wrap;gap:10px 14px;font-size:13px;line-height:1.6;color:var(--neo-muted)}.learn-card .learn-meta{padding-top:14px;border-top:1px solid var(--neo-border);margin-top:auto}.learn-read{font-size:15px;font-weight:650;color:#6d28d9}.dark .learn-read{color:#c4b5fd}.learn-overlay{position:absolute;inset:0;background:linear-gradient(135deg,#667eeaf2,#764ba2f2);color:#fff;display:grid;place-items:center;font-size:22px;font-weight:650;opacity:0;transition:opacity .2s;pointer-events:none}@media(hover:hover){.learn-card:hover .learn-overlay{opacity:1}}
.learn-button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 18px;gap:8px;border:1px solid var(--neo-border);border-radius:14px;box-shadow:var(--learn-inset);color:var(--neo-text);background:transparent;font:inherit;font-size:15px;font-weight:600;cursor:pointer}.learn-button:hover{text-decoration:none;background:#8b5cf60d}.learn-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}.learn-detail h1{font-size:clamp(28px,3vw,40px);overflow-wrap:anywhere}.learn-content-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:40px;align-items:start}.learn-toc{position:sticky;top:20px;max-height:70vh;overflow:auto;background:#ffffff30;box-shadow:var(--learn-inset);border-radius:20px;padding:20px}.learn-toc h2{font-size:16px;margin:0 0 12px}.learn-toc a{display:block;padding:10px 8px;font-size:14px;line-height:1.6;color:var(--neo-text);border-radius:8px}.learn-toc a:hover{background:#8b5cf617;text-decoration:none}
.learn-article{min-width:0;max-width:760px;margin:auto;font-size:17px;line-height:1.95;overflow-wrap:anywhere;color:var(--neo-text)}.learn-article p{margin:18px 0}.learn-intro{font-size:18px}.learn-article h2{font-size:26px;line-height:1.5;margin:32px 0 18px;border-bottom:2px solid var(--neo-border);padding-bottom:10px;scroll-margin-top:24px}.learn-code{position:relative;max-width:100%;margin:24px 0;background:#0f172a;color:#e2e8f0;border-radius:14px;overflow:hidden}.learn-code button{display:block;margin:10px 10px 0 auto;min-height:44px;padding:8px 14px;border-radius:8px;border:1px solid #64748b;background:#1e293b;color:#fff;font-size:14px;cursor:pointer}.learn-code pre{overflow:auto;white-space:pre;padding:18px;margin:0;line-height:1.8;font:14px/1.8 Consolas,monospace}.learn-upstream{border:1px solid var(--neo-border);border-radius:14px;padding:18px;max-width:100%}.learn-upstream summary{cursor:pointer;font-weight:600}.learn-upstream pre{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.85 Consolas,monospace;margin-top:18px}.learn-related{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:24px}.learn-related-card{border-radius:20px;padding:24px;box-shadow:var(--learn-inset);color:var(--neo-text)}.learn-related-card h3{font-size:20px;line-height:1.5}.learn-related-card p{font-size:16px;line-height:1.8;margin:14px 0;color:var(--neo-muted)}.learn-empty{grid-column:1/-1;padding:48px;text-align:center;color:var(--neo-muted)}
.learn-page :is(a,button,input):focus-visible{outline:3px solid #8b5cf6;outline-offset:4px}
@media(max-width:1100px){.learn-hero-row{flex-wrap:wrap}.learn-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.learn-content-layout{grid-template-columns:1fr}.learn-toc{position:static;max-height:300px}.learn-article{width:100%}}
@media(max-width:768px){.learn-container{gap:24px}.learn-hero,.learn-panel{padding:24px 20px;border-radius:24px}.learn-grid,.learn-related{grid-template-columns:1fr}.learn-stats{width:100%;justify-content:space-around}.learn-hero-row{gap:20px}.learn-cover{height:190px}.learn-actions>*{width:100%}.learn-article{font-size:16px}.learn-article h2{font-size:23px}.learn-code pre{font-size:14px}.learn-card h2{font-size:21px}}
@media(prefers-reduced-motion:reduce){.learn-card,.learn-overlay{transition:none}}