.learn-hub{width:100%}.learn-hero{background:linear-gradient(135deg,#0b1b2b,#12324a);color:#fff;border-radius:16px;padding:2rem 1.75rem;margin:0 0 1.5rem}.learn-hero h1{margin:0 0 .6rem;font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.2;color:#fff}.learn-hero p{margin:0 0 .5rem;color:#c7d6e2;max-width:68ch;line-height:1.6}.learn-hero .learn-meta{font-size:.86rem;color:#9fb4c4}.learn-controls{position:-webkit-sticky;position:sticky;top:130px;z-index:5;background:rgba(244,246,249,.92);-webkit-backdrop-filter:saturate(1.4) blur(6px);backdrop-filter:saturate(1.4) blur(6px);padding:.6rem 0;margin:0 0 1rem;border-bottom:1px solid #e6ebf0}.learn-search{position:relative;margin-bottom:.6rem}.learn-search input{width:100%;padding:.7rem 1rem .7rem 2.4rem;border:1px solid #d7dee5;border-radius:10px;font-size:.95rem;background:#fff;color:#0f172a}.learn-search input:focus{outline:none;border-color:#FF3621;box-shadow:0 0 0 3px rgba(255,54,33,.12)}.learn-search .learn-search-icon{position:absolute;left:.85rem;top:50%;transform:translateY(-50%);color:#8a97a0;pointer-events:none}.learn-chips{display:flex;flex-wrap:wrap;gap:.4rem}.learn-chip{display:inline-flex;align-items:center;gap:.4rem;padding:.3rem .7rem;border-radius:999px;background:#fff;border:1px solid #e2e8f0;color:#1b3139;font-size:.82rem;font-weight:600;text-decoration:none;white-space:nowrap}.learn-chip:hover{border-color:#FF3621;color:#FF3621}.learn-chip .learn-chip-count{color:#8a97a0;font-weight:500}.learn-section{margin:0 0 2.25rem}.learn-section-head{display:flex;align-items:center;gap:.6rem;margin:0 0 1rem;padding-bottom:.5rem;border-bottom:2px solid #eef1f4}.learn-section-head i{color:#FF3621;font-size:1.05rem}.learn-section-head h2{margin:0;font-size:clamp(1.2rem,3vw,1.45rem);color:#0f172a}.learn-section-head .learn-section-count{margin-left:auto;font-size:.8rem;color:#8a97a0;font-weight:600}.learn-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));grid-gap:1rem;gap:1rem}.learn-card{display:flex;flex-direction:column;background:#fff;border:1px solid #e2e8f0;border-radius:14px;overflow:hidden;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.learn-card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(15,23,42,.1);border-color:#FF3621}.learn-card-thumb{position:relative;aspect-ratio:16/9;background:#0b1b2b;overflow:hidden}.learn-card-thumb img{width:100%;height:100%;object-fit:cover;display:block}.learn-card-thumb .learn-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;font-size:2rem;opacity:.85;text-shadow:0 2px 10px rgba(0,0,0,.5);pointer-events:none}.learn-card-body{display:flex;flex-direction:column;gap:.4rem;padding:.9rem 1rem 1.05rem;flex:1 1}.learn-card-title{font-size:1rem;font-weight:700;line-height:1.32;color:#0f172a;text-decoration:none}.learn-card:hover .learn-card-title{color:#FF3621}.learn-card-desc{font-size:.86rem;color:#5b6770;line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.learn-empty{color:#5b6770;padding:1rem 0}@media (max-width:640px){.learn-hero{padding:1.5rem 1.25rem}.learn-controls{position:static}.learn-chips{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:.3rem}}