@keyframes _si{from{opacity:0}to{opacity:1}}

.legacy-content .lesson-header .kicker {color:var(--al)}.legacy-content .l-callout b {color:var(--al)}.legacy-content .maze-box {background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-card);overflow:hidden}.legacy-content .maze-wrap {padding:18px;display:flex;justify-content:center;background:linear-gradient(to bottom,#fdf6fa,#fcf1f7)}.legacy-content .maze-grid {display:grid;grid-template-columns:repeat(11,1fr);gap:3px;width:100%;max-width:440px}.legacy-content .mz-cell {aspect-ratio:1;border-radius:5px;background:#fff;border:1px solid rgba(0,0,0,.06);display:flex;align-items:center;justify-content:center;font-size:14px;transition:background .25s,box-shadow .25s,opacity .3s;position:relative}.legacy-content .mz-cell.wall {background:var(--surface-soft);border-color:#3f3f46}.legacy-content .mz-cell.head {box-shadow:0 0 0 2.5px var(--al-deep);z-index:2}.legacy-content .mz-cell.backtracked {opacity:.4}.legacy-content .mz-cell.path {background:rgba(22,163,74,.55)!important;box-shadow:0 0 0 1.5px rgba(22,163,74,.7);opacity:1}.legacy-content .maze-foot {padding:14px 18px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:12px}.legacy-content .maze-btns {display:flex;gap:10px;flex-wrap:wrap;align-items:center}.legacy-content .btn-al {background:var(--al);color:#fff;border:none;padding:10px 22px;border-radius:999px;font-size:13.5px;font-weight:800;cursor:pointer;font-family:inherit;transition:filter .15s,transform .15s}.legacy-content .btn-al:hover:not(:disabled) {filter:brightness(1.08);transform:translateY(-1px)}.legacy-content .btn-al:disabled {background:#c4c8cf;cursor:not-allowed}.legacy-content .btn-al.ghost {background:transparent;color:var(--al);border:1.5px solid var(--al-line)}.legacy-content .btn-al.ghost:hover:not(:disabled) {background:var(--al-soft);filter:none}.legacy-content .maze-status {font-size:12.5px;color:var(--sub);font-weight:600}.legacy-content .maze-stats {display:grid;grid-template-columns:1fr 1fr;gap:12px}.legacy-content .stat-card {border:1.5px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px}.legacy-content .stat-card h5 {font-size:12.5px;font-weight:800;color:var(--sub);margin-bottom:6px;display:flex;align-items:center;gap:6px}.legacy-content .stat-card h5 .dot {width:10px;height:10px;border-radius:3px;flex-shrink:0}.legacy-content .stat-nums {display:flex;gap:20px}.legacy-content .stat-nums .sn {display:flex;flex-direction:column}.legacy-content .stat-nums .sn-label {font-size:10.5px;font-weight:700;color:var(--sub)}.legacy-content .stat-nums .sn-val {font-size:21px;font-weight:900;color:var(--text);font-variant-numeric:tabular-nums}.legacy-content .stat-nums .sn-val.good {color:var(--success)}.legacy-content .stat-nums .sn-val.bad {color:var(--danger)}.legacy-content .maze-verdict {margin:0 18px 16px;padding:14px 18px;background:var(--al-soft);border:1.5px dashed var(--al-line);border-radius:var(--radius-sm);font-size:13.5px;line-height:1.85;color:var(--sub);opacity:0;transform:translateY(6px);transition:opacity .35s,transform .35s}.legacy-content .maze-verdict.show {opacity:1;transform:translateY(0)}.legacy-content .maze-verdict b {color:var(--al-deep)}.legacy-content .ai-link-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.legacy-content .ai-link-card {background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-card)}.legacy-content .ai-link-card .alc-icon {font-size:24px;margin-bottom:8px}.legacy-content .ai-link-card h4 {font-size:14.5px;font-weight:800;color:var(--text);margin-bottom:6px}.legacy-content .ai-link-card p {font-size:12.5px;color:var(--sub);line-height:1.75}.legacy-content .ai-link-card p b {color:var(--text)}.legacy-content .takeaway-box {background:linear-gradient(135deg,#fdf2f8,#fce7f3);border:1.5px solid #fbcfe8;border-radius:var(--radius);padding:24px 28px;margin-top:36px}.legacy-content .takeaway-box h3 {font-size:17px;font-weight:800;color:#9d174d;margin-bottom:10px}.legacy-content .takeaway-box ul {list-style:none;padding:0;margin:0}.legacy-content .takeaway-box li {font-size:14.5px;color:#831843;line-height:1.8;padding:4px 0 4px 22px;position:relative}.legacy-content .takeaway-box li::before {content:'';position:absolute;left:0;top:13px;width:8px;height:8px;border-radius:50%;background:#db2777}@media (max-width:768px){.legacy-content .ai-link-grid {grid-template-columns:1fr}.legacy-content .maze-stats {grid-template-columns:1fr}.legacy-content .mz-cell {font-size:11px;border-radius:4px}}

.legacy-content .xa-tldr {margin:18px 0 4px;padding:14px 18px;background:rgba(0,102,255,0.04);border:1px solid rgba(0,102,255,0.16);border-radius:10px}.legacy-content .xa-tldr .xa-tldr-tag {display:block;font-size:11px;font-weight:800;letter-spacing:1px;color:var(--accent,#0066ff);margin-bottom:6px}.legacy-content .xa-tldr p {margin:0;font-size:15px;line-height:1.8;color:var(--text,#1f2937)}