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b{color:var(--gray-700);font-size:14px;line-height:1.5;display:block}.learning-item small{color:var(--gray-400);margin-top:4px;font-size:12px;display:block}.notice-box{border-radius:var(--radius);color:#96693c;background:linear-gradient(135deg,#f7f2e6 0%,#f3ead9 100%);border:1px solid #eddfc0;margin-top:24px;padding:14px 16px;font-size:12px;line-height:1.6}.lock-screen{background:linear-gradient(135deg, var(--primary-dark) 0%, #a6b6cf 50%, var(--primary) 100%);z-index:99;justify-content:center;align-items:center;animation:.5s ease-out lockFadeIn;display:flex;position:fixed;inset:0}@keyframes lockFadeIn{0%{opacity:0}to{opacity:1}}.lock-card{border-radius:var(--radius-xl);text-align:center;width:min(360px,90vw);box-shadow:var(--shadow-xl);background:#fff;padding:40px 32px;animation:.5s cubic-bezier(.4,0,.2,1) lockCardIn}@keyframes lockCardIn{0%{opacity:0;transform:scale(.9)translateY(20px)}to{opacity:1;transform:scale(1)translateY(0)}}.lock-card 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minmax(0,1fr);gap:10px;padding:11px}.lesson-cover{border-radius:12px;width:46px;height:46px;font-size:18px}.lesson-status{border-radius:999px;grid-column:2;width:max-content;min-width:34px;height:26px;padding:0 8px}.lesson-info small{white-space:normal;-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box}.lesson-hero,.lesson-article{padding:17px}.lesson-hero h2{font-size:21px}.lesson-actions{z-index:4;box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffeb;border-radius:14px;gap:6px;padding:8px;position:sticky;bottom:8px}.lesson-actions button{padding:10px 5px;font-size:12px}.continue-learning{padding:14px}.continue-learning b{font-size:14px}.video-shell{border-radius:var(--radius)}.quiz-top{flex-wrap:wrap}#quizMeta{overflow-wrap:anywhere}header{padding:24px 16px 20px}header h1{font-size:22px}.subtitle span{padding:2px 8px;font-size:11px}.page{padding:16px 12px 40px}#questionBox{padding:18px 16px}.q-stem{font-size:15px}.opt{padding:12px 14px;font-size:14px}.quiz-actions{gap:8px}.quiz-actions button{padding:12px 8px;font-size:13px}#resultBox .score{font-size:44px}.cat-card{padding:18px 16px}.cat-card h3{font-size:18px}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--gray-100)}::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--gray-400)}::selection{background:var(--primary-light);color:var(--primary-dark)}.site-foot{text-align:center;color:var(--gray-400);letter-spacing:.5px;padding:18px 12px 26px;font-size:13px}