@keyframes _si{to{opacity:1}}.legacy-content .lesson-header h1 em {font-style:normal;color:var(--danger)}.legacy-content .ctrl-bar {display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}.legacy-content .score-badge {padding:8px 16px;border-radius:20px;font-size:14px;font-weight:800}.legacy-content .btn-reveal {background:var(--tips-accent);color:white;border:none;padding:10px 20px;border-radius:10px;font-size:14px;font-weight:700;cursor:pointer;transition:all .15s;font-family:inherit}.legacy-content .btn-reveal:hover {filter:brightness(1.1)}.legacy-content .btn-reveal:disabled {background:#ccc;cursor:not-allowed}.legacy-content .round-tabs {display:flex;gap:6px}.legacy-content .round-tab {padding:8px 14px;border-radius:8px;border:1.5px solid var(--border);background:var(--surface);font-size:13px;font-weight:700;cursor:pointer;color:var(--sub);transition:all .15s;font-family:inherit}.legacy-content .round-tab.active {background:var(--tips-accent);border-color:var(--tips-accent);color:white}.legacy-content .verify-layout {display:grid;grid-template-columns:1.15fr 1fr;gap:20px;align-items:start}.legacy-content .claim-list {display:flex;flex-direction:column;gap:10px}.legacy-content .right-panel {display:flex;flex-direction:column;gap:10px}.legacy-content .scenario-label {font-size:11px;font-weight:800;color:var(--muted);letter-spacing:.4px;text-transform:uppercase}.legacy-content .scenario-q {font-size:14px;font-weight:700;color:var(--tips-accent);padding:10px 12px;background:rgba(8,145,178,.06);border:1px solid rgba(8,145,178,.2);border-radius:8px}.legacy-content .claim {background:var(--surface);border:2px solid var(--border);border-radius:12px;padding:13px 14px;cursor:pointer;transition:all .2s;position:relative}.legacy-content .claim:hover {border-color:rgba(8,145,178,.3)}.legacy-content .claim.selected {border-color:var(--red);background:rgba(220,38,38,.04)}.legacy-content .claim.revealed-true {border-color:var(--green);background:rgba(22,163,74,.04);cursor:default}.legacy-content .claim.revealed-false {border-color:var(--red);background:rgba(220,38,38,.04);cursor:default}.legacy-content .claim-num {position:absolute;top:10px;right:12px;font-size:11px;font-weight:800;color:var(--muted)}.legacy-content .claim-text {font-size:14px;line-height:1.65;color:var(--text);padding-right:24px}.legacy-content .claim-verdict {display:none;margin-top:8px;padding:8px 10px;border-radius:8px;font-size:13px;line-height:1.6}.legacy-content .revealed-true .claim-verdict {display:block;background:rgba(22,163,74,.08);color:#14532d}.legacy-content .revealed-false .claim-verdict {display:block;background:rgba(220,38,38,.08);color:#7c2d12}.legacy-content .inst-box {padding:12px 14px;border-radius:10px;font-size:14px;line-height:1.7}.legacy-content .stat-grid {display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}.legacy-content .stat-card {background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:12px;text-align:center}.legacy-content .stat-num {font-size:22px;font-weight:900}.legacy-content .stat-lbl {font-size:11px;color:var(--muted);margin-top:2px}.legacy-content .lesson-box {background:rgba(8,145,178,.06);border:1.5px solid rgba(8,145,178,.2);border-radius:12px;padding:14px;font-size:14px;color:var(--sub);line-height:1.7}.legacy-content .lesson-box strong {color:var(--text)}.legacy-content .lesson-box em {font-style:normal;color:var(--tips-accent);font-weight:700}.legacy-content .pattern-list {display:flex;flex-direction:column;gap:6px}.legacy-content .pattern-item {display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--sub);line-height:1.5}.legacy-content .pattern-icon {flex-shrink:0;width:20px;height:20px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;margin-top:1px}.legacy-content .pattern-item strong {color:var(--text)}@media (max-width:768px){.legacy-content .verify-layout {grid-template-columns:1fr}}