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transparent;margin-bottom:10px}.microedu-fact-title{font-size:clamp(1.15rem,4.5vw,1.35rem);font-weight:800;color:#fff;line-height:1.25;margin-bottom:14px}.microedu-fact-image-btn{display:block;width:100%;padding:0;border:none;background:none;cursor:pointer;margin-bottom:14px;-webkit-tap-highlight-color:transparent}.microedu-fact-image{width:100%;max-height:220px;object-fit:contain;border-radius:14px;background:#00000040;border:1px solid rgba(255,255,255,.1)}.microedu-fact-image-fallback{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:140px;margin-bottom:14px;border-radius:14px;border:1px dashed rgba(255,255,255,.15);background:#0003;color:#94a3b8;font-size:.85rem}.microedu-fact-image-fallback span{font-size:2rem}.microedu-fact-body{font-size:clamp(.95rem,3.8vw,1.05rem);line-height:1.6;color:#cbd5e1}.clickable-word{cursor:pointer;border-radius:4px;padding:1px 2px;-webkit-tap-highlight-color:transparent;transition:background .15s 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8px;-webkit-overflow-scrolling:touch}.microedu-lesson-title{font-size:clamp(1.2rem,5.2vw,1.55rem);font-weight:800;color:#fff;line-height:1.2;margin-bottom:8px}.microedu-lesson-body{font-size:clamp(1rem,4.2vw,1.18rem);line-height:1.5;color:#e2e8f0}.microedu-lesson-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px;flex-shrink:0;padding:8px 12px 4px}.microedu-lesson-nav-btn{min-height:52px;border-radius:14px;border:1px solid rgba(255,255,255,.2);background:#ffffff14;color:#e2e8f0;font-size:1.35rem;font-weight:700;cursor:pointer;-webkit-tap-highlight-color:transparent}.microedu-lesson-nav-btn:active{transform:scale(.97)}.microedu-lesson-nav-primary{background:#ffffff1f;font-weight:800}@media (min-height: 700px){.microedu-lesson-bottom{max-height:36vh}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}button:hover{transform:translateY(-2px)}