@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 .cmp-box {background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-card);overflow:hidden}.legacy-content .cmp-head {display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 18px;border-bottom:1px solid var(--border);background:rgba(0,0,0,.015)}.legacy-content .cmp-meter {display:flex;align-items:baseline;gap:7px}.legacy-content .cmp-meter .cm-label {font-size:12px;font-weight:800;color:var(--sub)}.legacy-content .cmp-meter .cm-val {font-size:24px;font-weight:900;color:var(--al);font-variant-numeric:tabular-nums;transition:color .3s}.legacy-content .cmp-meter .cm-val.low {color:var(--success)}.legacy-content .cmp-meter .cm-unit {font-size:12px;font-weight:700;color:var(--sub)}.legacy-content .cmp-toggle {display:flex;align-items:center;gap:9px;font-size:13px;font-weight:700;color:var(--text);cursor:pointer;user-select:none}.legacy-content .cmp-toggle input {display:none}.legacy-content .cmp-toggle .tg-track {width:40px;height:22px;border-radius:99px;background:#d1d5db;position:relative;transition:background .2s;flex-shrink:0}.legacy-content .cmp-toggle .tg-track::after {content:'';position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;transition:left .2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}.legacy-content .cmp-toggle input:checked + .tg-track {background:var(--al)}.legacy-content .cmp-toggle input:checked + .tg-track::after {left:20px}.legacy-content .cmp-stage {padding:18px 20px;display:flex;flex-direction:column;gap:8px;min-height:300px}.legacy-content .cmp-phase-tag {align-self:center;font-size:12px;font-weight:800;color:var(--al-deep);background:var(--al-soft);border:1px dashed var(--al-line);padding:4px 16px;border-radius:99px;opacity:0;transition:opacity .3s}.legacy-content .cmp-phase-tag.show {opacity:1}.legacy-content .cmp-group {border-radius:var(--radius-sm);transition:background .4s,border-color .4s,padding .4s;display:flex;flex-direction:column;gap:8px;border:1.5px solid transparent}.legacy-content .cmp-group.grouped {padding:10px;border-color:var(--gc, var(--border));background:var(--gbg, transparent)}.legacy-content .cmp-group .grp-title {font-size:11.5px;font-weight:800;color:var(--gc);display:none;letter-spacing:.4px}.legacy-content .cmp-group.grouped .grp-title {display:block}.legacy-content .cmp-msg {display:flex;gap:8px;align-items:flex-start;overflow:hidden;max-height:120px;transition:max-height .5s ease,opacity .4s ease,margin .5s ease;position:relative}.legacy-content .cmp-msg.gone {max-height:0;opacity:0;margin:-4px 0}.legacy-content .cmp-msg.user {flex-direction:row-reverse}.legacy-content .cmp-avatar {width:26px;height:26px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:800;color:#fff}.legacy-content .cmp-msg.user .cmp-avatar {background:#64748b}.legacy-content .cmp-msg.ai .cmp-avatar {background:var(--al)}.legacy-content .cmp-bubble {max-width:82%;padding:7px 13px;border-radius:12px;font-size:12.5px;line-height:1.65;color:var(--text)}.legacy-content .cmp-msg.user .cmp-bubble {background:rgba(100,116,139,.09);border-top-right-radius:4px}.legacy-content .cmp-msg.ai .cmp-bubble {background:var(--al-soft);border-top-left-radius:4px}.legacy-content .cmp-bubble .tk {font-size:10px;font-weight:800;color:var(--sub);opacity:.75;margin-left:6px;white-space:nowrap}.legacy-content .cmp-bubble .key-fact {background:rgba(217,119,6,.16);border-radius:4px;padding:0 3px;font-weight:700}.legacy-content .cmp-keep-badge {position:absolute;top:0;font-size:10px;font-weight:800;color:var(--success);background:rgba(22,163,74,.1);padding:1px 8px;border-radius:99px;display:none}.legacy-content .cmp-msg.user .cmp-keep-badge {left:0}.legacy-content .cmp-msg.ai .cmp-keep-badge {right:0}.legacy-content .cmp-msg.kept .cmp-keep-badge {display:block}.legacy-content .cmp-summary {border:1.5px dashed var(--gc, var(--al-line));background:#fff;border-radius:var(--radius-sm);padding:10px 14px;font-size:12.5px;line-height:1.7;color:var(--text);opacity:0;transform:scale(.92);transition:opacity .45s,transform .45s}.legacy-content .cmp-summary.show {opacity:1;transform:scale(1)}.legacy-content .cmp-summary .sm-tag {font-size:10.5px;font-weight:800;color:var(--gc, var(--al-deep));display:block;margin-bottom:2px}.legacy-content .cmp-summary .tk {font-size:10.5px;font-weight:800;color:var(--sub);margin-left:6px;white-space:nowrap}.legacy-content .cmp-final {border:2px solid var(--al);background:linear-gradient(135deg,#fdf2f8,#fce7f3);border-radius:var(--radius-sm);padding:13px 16px;font-size:13px;line-height:1.75;color:#831843;opacity:0;transform:scale(.9);transition:opacity .5s,transform .5s;display:none}.legacy-content .cmp-final.show {opacity:1;transform:scale(1)}.legacy-content .cmp-final .sm-tag {font-size:11px;font-weight:900;color:var(--al-deep);display:block;margin-bottom:3px}.legacy-content .cmp-foot {padding:14px 18px;border-top:1px solid var(--border);display:flex;align-items:center;gap:12px;flex-wrap:wrap}.legacy-content .btn-al {background:var(--al);color:#fff;border:none;padding:10px 26px;border-radius:999px;font-size:14px;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 .cmp-status {font-size:12.5px;color:var(--sub);font-weight:600}.legacy-content .merge-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.legacy-content .merge-card {background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-card);text-align:center}.legacy-content .merge-card .mg-step {display:inline-block;font-size:11px;font-weight:900;color:#fff;background:var(--al);padding:2px 14px;border-radius:99px;margin-bottom:8px;letter-spacing:2px}.legacy-content .merge-card h4 {font-size:16px;font-weight:800;color:var(--text);margin-bottom:6px}.legacy-content .merge-card p {font-size:12.5px;color:var(--sub);line-height:1.75;text-align:left}.legacy-content .merge-card p b {color:var(--text)}.legacy-content .loss-box {background:var(--card);border:1.5px solid rgba(217,119,6,.35);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow-card)}.legacy-content .loss-box h4 {font-size:15px;font-weight:800;color:var(--amber);margin-bottom:12px}.legacy-content .loss-row {display:grid;grid-template-columns:1fr 36px 1fr;gap:10px;align-items:center;margin-bottom:10px}.legacy-content .loss-cell {border-radius:var(--radius-sm);padding:10px 14px;font-size:13px;line-height:1.7}.legacy-content .loss-cell.orig {background:rgba(0,0,0,.035);color:var(--text)}.legacy-content .loss-cell.orig b {background:rgba(217,119,6,.18);padding:0 3px;border-radius:4px}.legacy-content .loss-cell.after {background:var(--al-soft);color:var(--text)}.legacy-content .loss-cell.after .lost {color:var(--danger);font-weight:800;font-size:11.5px}.legacy-content .loss-arrow {text-align:center;font-size:17px;color:var(--sub)}.legacy-content .loss-note {font-size:13px;color:var(--sub);line-height:1.8;border-top:1px dashed var(--border);padding-top:12px;margin-top:4px}.legacy-content .loss-note 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 .merge-grid {grid-template-columns:1fr}.legacy-content .loss-row {grid-template-columns:1fr;gap:4px}.legacy-content .loss-arrow {transform:rotate(90deg)}.legacy-content .cmp-bubble {max-width:88%}}

.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)}