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

.legacy-content .fmt-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }.legacy-content .fmt-btn {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: var(--radius);
  border: 1.5px solid var(--border); background: var(--card);
  cursor: pointer; transition: all 0.2s; font-family: inherit;
  text-align: left; width: 100%; min-height: 44px;
  box-shadow: var(--shadow-card);
}.legacy-content .fmt-btn:hover { border-color: rgba(0,0,0,0.15); }.legacy-content .fmt-btn.active { border-color: var(--purple); background: rgba(124,58,237,0.04); }.legacy-content .badge {
  padding: 4px 10px; border-radius: 6px; font-size: 12px; font-weight: 800;
  flex-shrink: 0; min-width: 48px; text-align: center;
  font-family: "SF Mono", Menlo, monospace;
}.legacy-content .ft h4 { font-size: 15px; font-weight: 700; color: var(--text); transition: color 0.2s; }.legacy-content .fmt-btn.active .ft h4 { color: var(--purple); }.legacy-content .ft p { font-size: 12px; color: var(--sub); margin-top: 2px; line-height: 1.5; }.legacy-content .score-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }.legacy-content .sc {
  background: var(--card); border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); padding: 10px 8px; text-align: center;
}.legacy-content .sc .sl { font-size: 11px; color: var(--sub); font-weight: 600; margin-bottom: 4px; }.legacy-content .sc .sv { font-size: 15px; font-weight: 800; }.legacy-content .sv.good { color: var(--success); }.legacy-content .sv.mid { color: var(--amber); }.legacy-content .sv.bad { color: var(--danger); }.legacy-content .tradeoff-box {
  background: rgba(124,58,237,0.05); border: 1.5px solid rgba(124,58,237,0.15);
  border-radius: var(--radius); padding: 14px 18px;
  font-size: 14px; color: var(--text); line-height: 1.8; margin-top: 12px;
}.legacy-content .tradeoff-box b { color: var(--purple); }.legacy-content .warn-tag {
  background: rgba(220,38,38,0.08); border: 1px solid rgba(220,38,38,0.2);
  color: var(--danger); padding: 1px 7px; border-radius: 4px;
  font-size: 12px; font-weight: 600;
}.legacy-content .good-tag {
  background: rgba(22,163,74,0.08); border: 1px solid rgba(22,163,74,0.2);
  color: var(--success); padding: 1px 7px; border-radius: 4px;
  font-size: 12px; font-weight: 600;
}.legacy-content .demo-hd { font-size: 14px; font-weight: 800; color: var(--sub); letter-spacing: 0.4px; margin-bottom: 12px; }.legacy-content .stream-area { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }.legacy-content .stream-panel {
  background: var(--card); border: 1.5px solid var(--border);
  border-radius: var(--radius); display: flex; flex-direction: column;
  overflow: hidden;
}.legacy-content .sp-hd {
  padding: 10px 16px; border-bottom: 1px solid var(--border);
  background: var(--surface2); font-size: 13px; font-weight: 700;
  display: flex; justify-content: space-between; align-items: center;
  flex-shrink: 0;
}.legacy-content .sp-body { height: 320px; overflow-y: auto; position: relative; }.legacy-content .code-view {
  padding: 12px 14px; font-size: 13px;
  font-family: "SF Mono", "Fira Code", Menlo, monospace;
  line-height: 1.7; color: var(--muted); background: var(--surface-soft);
  min-height: 100%; white-space: pre-wrap; word-break: break-word;
}.legacy-content .render-view { padding: 12px 14px; font-size: 14px; line-height: 1.75; color: var(--text); }.legacy-content .tk { display: inline; opacity: 0; animation: tkIn 0.08s ease forwards; }@keyframes tkIn{ to { opacity: 1; } }.legacy-content .prog-row { display: flex; gap: 8px; align-items: center; margin-top: 12px; }.legacy-content .prog-track { flex: 1; height: 5px; background: var(--surface2); border-radius: 3px; overflow: hidden; }.legacy-content .prog-fill { height: 100%; border-radius: 3px; width: 0%; transition: width 0.2s; }.legacy-content .prog-pct { font-size: 12px; color: var(--sub); min-width: 36px; }.legacy-content .ctrl-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 12px; }.legacy-content .btn {
  padding: 11px 24px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 700; border: none; cursor: pointer;
  font-family: inherit; transition: all 0.15s; min-height: 44px;
}.legacy-content .btn-play { background: var(--purple); color: white; }.legacy-content .btn-play:hover { filter: brightness(1.1); }.legacy-content .btn-play:disabled { opacity: 0.3; cursor: not-allowed; }.legacy-content .btn-rst { background: var(--card); color: var(--sub); border: 1.5px solid var(--border); }.legacy-content .hint { font-size: 13px; color: var(--sub); }.legacy-content .r-h2 { font-size: 17px; font-weight: 800; color: var(--text); margin: 6px 0 4px; }.legacy-content .r-h3 { font-size: 15px; font-weight: 700; color: #5b4fcf; margin: 4px 0 2px; }.legacy-content .r-li::before { content: "•"; color: var(--purple); margin-right: 5px; }.legacy-content .r-li { padding-left: 10px; margin: 2px 0; font-size: 14px; }.legacy-content .r-bq { padding-left: 10px; color: var(--sub); font-style: italic; margin: 4px 0; font-size: 13px; }.legacy-content .r-strong { font-weight: 800; color: var(--text); }.legacy-content .status { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 4px; }.legacy-content .status.live { background: #fef3c7; color: #92400e; animation: pulse 1.2s ease infinite; }.legacy-content .status.done { background: #d1fae5; color: #065f46; }@keyframes pulse{ 0%,100%{opacity:1} 50%{opacity:0.5} }@media (max-width: 768px){.legacy-content .fmt-list { grid-template-columns: 1fr; }.legacy-content .score-grid { grid-template-columns: repeat(2, 1fr); }.legacy-content .stream-area { grid-template-columns: 1fr; }.legacy-content .sp-body { height: 240px; }}

.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)}