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var(--accent-coral);border-radius:var(--radius-sm);font-size:.9rem;color:var(--text-primary);transition:opacity var(--transition)}.lecture-player-last{font-size:.9rem;color:var(--text-secondary);margin-top:1rem}.lecture-player-complete{margin-top:2rem;padding:2rem;background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);text-align:center;box-shadow:var(--shadow-md);animation:pageFadeIn .4s ease}.lecture-player-complete h2{margin:0 0 .5rem;font-size:1.5rem;font-weight:700;color:var(--accent-teal)}.lecture-player-complete p{margin:0 0 1.5rem;color:var(--text-secondary)}.lecture-player-complete a{display:inline-block;margin:0 .5rem .5rem 0;padding:.6rem 1.2rem;background:var(--accent);color:#fff;text-decoration:none;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;transition:background var(--transition-fast),transform var(--transition-fast)}.lecture-player-complete a:hover{background:var(--accent);transform:translateY(-1px)}.lecture-player-complete a:last-of-type{background:transparent;border:1px solid var(--accent);color:var(--accent)}.lecture-player-complete a:last-of-type:hover{background:var(--accent-soft);color:var(--accent)}@media(max-width:768px){.lecture-player{max-width:100%}.layout--sidebar-collapsed .lecture-player .lecture-player-main-content{grid-template-columns:1fr}.layout--sidebar-collapsed .lecture-player .lecture-player-outline{position:static;border-left:none;padding-left:0;padding-top:1.5rem;border-top:1px solid var(--border)}.lecture-player-title{font-size:1.25rem}.lecture-player-meta{font-size:.85rem}.lecture-player-video-wrap{margin-left:-.5rem;margin-right:-.5rem;border-radius:0}.lecture-player-description{padding:1rem;margin-bottom:1rem}.lecture-player-description-title{font-size:.9375rem}.lecture-player-description-text{font-size:.875rem}.lecture-player-outline-title{font-size:1rem}.lecture-player-outline-link{padding:.7rem 1rem;font-size:.875rem}.lecture-player-countdown{padding:.75rem 1rem;font-size:.9rem}.lecture-player-countdown-timer{font-size:1.25rem}}.exam-detail{max-width:720px;margin:0 auto;padding:0 0 2rem;background:var(--bg-base);overflow:scroll}.exam-detail.exam-detail--fullscreen,.exam-detail:fullscreen,.exam-detail:-webkit-full-screen,.exam-detail:-moz-full-screen,.exam-detail:-ms-fullscreen{background:#fff;width:100%;height:100vh;max-height:100vh;padding:1.5rem 1rem 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