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

.legacy-content .qa-answer {
  background: linear-gradient(135deg, rgba(8,145,178,0.06), rgba(0,102,255,0.05));
  border: 1.5px solid rgba(8,145,178,0.3);
  border-radius: var(--radius); padding: 22px 26px; margin: 4px 0 8px;
}.legacy-content .qa-answer .qa-tag { font-size: 11px; font-weight: 800; letter-spacing: 1px; color: #0891b2; margin-bottom: 8px; }.legacy-content .qa-answer p { font-size: 16.5px; font-weight: 700; color: var(--text); line-height: 1.85; }.legacy-content .qa-answer p b { color: #0891b2; }.legacy-content .tk-demo {
  background: var(--card); border: 1.5px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-card);
  padding: 22px 24px;
}.legacy-content .tk-sentences { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }.legacy-content .tk-sent {
  border: 1.5px solid var(--border); background: var(--card);
  border-radius: 999px; padding: 8px 16px;
  font-size: 13px; font-weight: 700; color: var(--sub);
  cursor: pointer; font-family: inherit; transition: all 0.15s;
}.legacy-content .tk-sent:hover { border-color: rgba(0,102,255,0.4); color: var(--text); }.legacy-content .tk-sent.on { border-color: var(--accent); background: rgba(0,102,255,0.06); color: var(--accent); }.legacy-content .tk-stage {
  min-height: 84px; padding: 16px 14px;
  background: rgba(0,0,0,0.02); border: 1.5px dashed var(--border);
  border-radius: var(--radius-sm);
  display: flex; flex-wrap: wrap; gap: 6px; align-content: flex-start;
}.legacy-content .tk-hint { font-size: 13px; color: var(--sub); }.legacy-content .tk-token {
  display: inline-block; padding: 4px 10px; border-radius: 8px;
  font-size: 14px; font-weight: 700; color: var(--text);
  font-family: "SF Mono", "Fira Code", Menlo, monospace; white-space: pre;
  opacity: 0; transform: scale(0.6);
  transition: opacity 0.25s, transform 0.25s;
}.legacy-content .tk-token.show { opacity: 1; transform: scale(1); }.legacy-content .tk-token.c0 { background: #dbeafe; }.legacy-content .tk-token.c1 { background: #dcfce7; }.legacy-content .tk-token.c2 { background: #fef3c7; }.legacy-content .tk-token.c3 { background: #fce7f3; }.legacy-content .tk-token.c4 { background: #ede9fe; }.legacy-content .tk-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }.legacy-content .tk-stat {
  background: rgba(0,102,255,0.03); border: 1px solid rgba(0,102,255,0.1);
  border-radius: var(--radius-sm); padding: 12px 14px; text-align: center;
}.legacy-content .tk-stat .tk-num { font-size: 22px; font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; }.legacy-content .tk-stat.tk-bill .tk-num { color: var(--amber); font-size: 18px; line-height: 1.7; }.legacy-content .tk-stat .tk-lab { font-size: 11.5px; font-weight: 700; color: var(--sub); margin-top: 2px; }.legacy-content .tk-note { margin-top: 12px; font-size: 12px; color: var(--sub); line-height: 1.7; }.legacy-content .takeaway-box {
  background: linear-gradient(135deg, #eff6ff, #eef2ff);
  border: 1.5px solid #bfdbfe; border-radius: var(--radius);
  padding: 24px 28px; margin-top: 36px;
}.legacy-content .takeaway-box h3 { font-size: 17px; font-weight: 800; color: #1e40af; 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: #1e3a5f; 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: #3b82f6;
}@media (max-width: 768px){.legacy-content .qa-answer p { font-size: 15px; }.legacy-content .tk-stats { grid-template-columns: 1fr; }.legacy-content .tk-sent { flex: 1 1 100%; text-align: left; }}