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

.legacy-content .lesson-header .kicker {color:var(--ct)}.legacy-content .chips {display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.legacy-content .chip {padding:6px 14px;border-radius:999px;background:var(--ct-soft);color:var(--ct-deep);font-size:13px;font-weight:700}.legacy-content .desc {font-size:15px;color:var(--sub);line-height:1.8}.legacy-content .desc b, .legacy-content .quote-card b {color:var(--ct-deep)}.legacy-content .quote-card {background:var(--ct-soft);border:1.5px solid var(--ct-line);border-radius:14px;padding:18px 22px;font-size:16px;line-height:1.8}.legacy-content .fig-wrap {margin-top:14px;background:var(--card);border:1.5px solid var(--border);border-radius:14px;padding:10px;box-shadow:var(--shadow-card)}.legacy-content .fig-wrap img {width:100%;border-radius:8px;display:block}.legacy-content .fig-cap {font-size:12.5px;color:var(--sub);padding:8px 6px 4px;line-height:1.6}.legacy-content .tbl {width:100%;border-collapse:collapse;margin-top:14px;font-size:13.5px;background:var(--card);border-radius:12px;overflow:hidden;box-shadow:var(--shadow-card)}.legacy-content .tbl th {background:var(--ct-soft);color:var(--ct-deep);font-weight:800;text-align:left;padding:11px 14px;font-size:13px}.legacy-content .tbl td {padding:11px 14px;border-top:1px solid var(--border);color:var(--sub);line-height:1.65;vertical-align:top}.legacy-content .tbl td b {color:var(--ct-deep)}.legacy-content .tbl td.hi {color:var(--warn);font-weight:800}.legacy-content .tbl-wrap {overflow-x:auto}.legacy-content .rp {background:var(--card);border:1.5px solid var(--border);border-radius:14px;padding:20px 22px;margin-top:14px;box-shadow:var(--shadow-card)}.legacy-content .rp-head {display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:14px}.legacy-content .rp-title {font-size:14.5px;font-weight:800;color:var(--text)}.legacy-content .rp-btn {padding:9px 24px;border-radius:999px;border:none;background:var(--ct);color:#fff;font-family:inherit;font-size:13.5px;font-weight:800;cursor:pointer}.legacy-content .rp-btn:disabled {background:#c4c8cf;cursor:not-allowed}.legacy-content .rp-rounds {display:flex;flex-direction:column;gap:9px}.legacy-content .rr {display:flex;gap:12px;align-items:flex-start;border:1.5px solid var(--border);border-radius:11px;padding:12px 14px;opacity:.32;transition:opacity .3s,border-color .3s}.legacy-content .rr.show {opacity:1;border-color:var(--ct-line)}.legacy-content .rr-num {width:26px;height:26px;border-radius:8px;background:var(--ct-soft);color:var(--ct-deep);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:12.5px;flex-shrink:0;margin-top:2px}.legacy-content .rr-body {flex:1;min-width:0}.legacy-content .rr-act {font-size:13.5px;font-weight:700;color:var(--text);margin-bottom:6px}.legacy-content .rr-bar {height:20px;background:rgba(0,0,0,.045);border-radius:6px;overflow:hidden;margin-bottom:5px}.legacy-content .rr-fill {height:100%;background:var(--warn);border-radius:6px;width:0;transition:width .5s ease;display:flex;align-items:center;justify-content:flex-end;padding-right:7px;font-size:11px;font-weight:800;color:#fff;min-width:34px}.legacy-content .rr-meta {font-size:12px;color:var(--sub)}.legacy-content .rr-meta b {color:var(--ct-deep)}.legacy-content .rp-sum {margin-top:14px;background:rgba(0,0,0,.03);border-radius:10px;padding:14px 16px;font-size:14px;line-height:1.8;color:var(--text);display:none}.legacy-content .rp-sum b {color:var(--warn)}.legacy-content .takeaways {display:flex;flex-direction:column;gap:10px;margin-top:12px}.legacy-content .tk-item {display:flex;gap:12px;align-items:flex-start;background:var(--card);border:1.5px solid var(--border);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow-card)}.legacy-content .tk-ic {width:22px;height:22px;border-radius:7px;background:var(--ct-soft);color:var(--ct);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-weight:800;font-size:13px;margin-top:1px}.legacy-content .tk-item p {font-size:14px;line-height:1.75;color:var(--text);margin:0}.legacy-content .tk-item p b {color:var(--ct-deep)}.legacy-content .src-note {margin-top:28px;font-size:13px;color:var(--sub);line-height:1.85}.legacy-content .src-note b {color:var(--text)}

.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)}