@keyframes _si{to{opacity:1}}

.legacy-content .algo-block {background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);padding:24px 28px;margin:24px 0;font-family:'SF Mono','Fira Code',monospace;font-size:13.5px;line-height:1.9;color:var(--text);overflow-x:auto;box-shadow:var(--shadow-card)}.legacy-content .algo-block .kw {color:var(--accent);font-weight:700}.legacy-content .algo-block .cmt {color:var(--sub);font-style:italic}.legacy-content .phase-flow {display:flex;align-items:stretch;gap:0;margin:32px 0;flex-wrap:wrap;justify-content:center}.legacy-content .phase-card {flex:1;min-width:200px;max-width:300px;background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);padding:22px 20px;position:relative;box-shadow:var(--shadow-card)}.legacy-content .phase-card .phase-num {position:absolute;top:12px;right:16px;font-size:40px;font-weight:900;color:rgba(79,123,255,.06);line-height:1}.legacy-content .phase-card h4 {font-size:15px;font-weight:800;color:var(--text);margin-bottom:10px;display:flex;align-items:center;gap:8px}.legacy-content .phase-card h4 .dot {width:10px;height:10px;border-radius:50%;flex-shrink:0}.legacy-content .phase-card p {font-size:13.5px;color:var(--sub);line-height:1.75}.legacy-content .phase-card p b {color:var(--text)}.legacy-content .phase-arrow {display:flex;align-items:center;font-size:24px;color:var(--accent);opacity:.4;padding:0 8px}.legacy-content .insight-card {background:linear-gradient(135deg,#eff6ff,#eef2ff);border:1.5px solid #bfdbfe;border-radius:var(--radius);padding:24px 28px;margin:28px 0}.legacy-content .insight-card h3 {font-size:17px;font-weight:800;color:#1e40af;margin-bottom:12px;display:flex;align-items:center;gap:10px}.legacy-content .insight-card p {font-size:14.5px;color:#1e3a5f;line-height:1.8}.legacy-content .insight-card p b {color:#1e40af}.legacy-content .warn-card {background:linear-gradient(135deg,#fef2f2,#fff1f2);border:1.5px solid #fecaca;border-radius:var(--radius);padding:24px 28px;margin:28px 0}.legacy-content .warn-card h3 {font-size:17px;font-weight:800;color:#dc2626;margin-bottom:10px;display:flex;align-items:center;gap:10px}.legacy-content .warn-card p {font-size:14.5px;color:#7f1d1d;line-height:1.8}.legacy-content .warn-card p b {color:#dc2626}.legacy-content .concept-card {background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);padding:24px 28px;margin:24px 0;box-shadow:var(--shadow-card)}.legacy-content .concept-card .cc-head {display:flex;align-items:center;gap:12px;margin-bottom:14px}.legacy-content .concept-card .cc-icon {width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.legacy-content .concept-card .cc-title {font-size:17px;font-weight:800;color:var(--text)}.legacy-content .concept-card .cc-body {font-size:14px;color:var(--sub);line-height:1.8}.legacy-content .concept-card .cc-body b {color:var(--text)}.legacy-content .fig-wrap {margin:28px 0;text-align:center}.legacy-content .fig-wrap img {max-width:100%;border-radius:var(--radius);border:1.5px solid var(--border);box-shadow:var(--shadow-card)}.legacy-content .fig-wrap .fig-cap {font-size:12px;color:var(--sub);margin-top:10px;line-height:1.6}.legacy-content .finding-grid {display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:24px 0}.legacy-content .finding-item {background:var(--card);border:1.5px solid var(--border);border-radius:12px;padding:18px 20px;box-shadow:var(--shadow-card)}.legacy-content .finding-item .fi-label {font-size:12px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}.legacy-content .finding-item p {font-size:13.5px;color:var(--sub);line-height:1.7;margin:0}.legacy-content .finding-item p b {color:var(--text)}.legacy-content .detail-list {margin:16px 0;padding-left:0;list-style:none}.legacy-content .detail-list li {font-size:14px;color:var(--sub);line-height:1.8;padding:4px 0 4px 20px;position:relative}.legacy-content .detail-list li::before {content:'';position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--accent);opacity:.5}.legacy-content .plain-talk {background:linear-gradient(135deg,#fffbeb,#fef9c3);border:1.5px dashed #fbbf24;border-radius:var(--radius);padding:16px 20px;margin:14px 0 28px;font-size:14px;color:#713f12;line-height:1.85;display:flex;gap:12px;align-items:flex-start}.legacy-content .plain-talk .pt-icon {flex-shrink:0;font-size:18px;line-height:1.5}.legacy-content .plain-talk b {color:#92400e}.legacy-content .plain-talk .pt-tag {font-weight:800;color:#b45309}@media(max-width:768px){.legacy-content .phase-flow {flex-direction:column;align-items:center}.legacy-content .phase-arrow {transform:rotate(90deg);padding:8px 0}.legacy-content .phase-card {max-width:100%}.legacy-content .algo-block {font-size:12px;padding:18px 16px}}