:root{--surface:#ffffff;--surface-muted:#f4f4f5;--border:#e4e4e7;--text-main:#18181b;--text-muted:#52525b;--primary:#6366f1;--primary-dark:#4f46e5;--accent:#22d3ee;--shadow-soft:0 12px 40px rgba(24,24,27,0.09);--gradient:linear-gradient(125deg,#6366f1 0%,#22d3ee 100%);--pcg-ink:#0f172a;--pcg-ink-soft:#334155;--pcg-glow:rgba(99,102,241,0.22);--pcg-card:#ffffff;--pcg-border-soft:#d4d4d8;}
.pcg-prose{margin-top:2.5rem;}
.pcg-prose h2{font-size:1.35rem;font-weight:700;color:var(--text-main);margin-top:2rem;margin-bottom:0.75rem;}
.pcg-prose h2:first-child{margin-top:0;}
.pcg-prose p{color:var(--text-muted);line-height:1.65;margin-bottom:0.9rem;}
.pcg-prose .pcg-lead{color:var(--text-main);font-size:1.05rem;}
.pcg-prose ul{padding-left:1.2rem;color:var(--text-muted);line-height:1.6;}
.pcg-prose ul li{margin-bottom:0.5rem;}
.pcg-callout{border-left:3px solid var(--primary);background:var(--surface-muted);padding:1rem 1.1rem;border-radius:0 8px 8px 0;margin:1.25rem 0;font-size:0.95rem;color:var(--text-muted);}
.pcg-dl-grid{display:grid;gap:0.85rem 1.5rem;margin:1.25rem 0;}
@media (min-width:576px){.pcg-dl-grid{grid-template-columns:minmax(0,200px) 1fr;}}
.pcg-dl-grid dt{font-weight:600;color:var(--text-main);margin:0;}
.pcg-dl-grid dd{margin:0;color:var(--text-muted);line-height:1.55;}
.pcg-table-wrap{overflow-x:auto;margin:1.25rem 0;border-radius:10px;border:1px solid var(--border);}
.pcg-table{width:100%;border-collapse:collapse;font-size:0.9rem;}
.pcg-table th,.pcg-table td{padding:0.65rem 0.85rem;text-align:left;border-bottom:1px solid var(--border);}
.pcg-table th{background:var(--surface-muted);color:var(--text-main);font-weight:600;}
.pcg-table td{color:var(--text-muted);}
.pcg-table tr:last-child td{border-bottom:none;}
.pcg-aside{font-size:0.92rem;color:var(--text-muted);border:1px dashed var(--border);border-radius:10px;padding:1rem 1.1rem;margin:1.5rem 0;background:var(--surface);}
.pcg-upload-gate{margin-top:1.25rem;border:1px dashed var(--border);background:var(--surface);border-radius:16px;padding:1rem;box-shadow:var(--shadow-soft);}
.pcg-grade-shell{margin-top:1.25rem;border-radius:16px;background:var(--pcg-card);border:1px solid var(--pcg-border-soft);box-shadow:var(--shadow-soft);overflow:hidden;}
.pcg-tool-area[hidden]{display:none!important;}
.pcg-grade-inner{padding:clamp(1rem,4vw,1.5rem);}
.pcg-toolbar{display:flex;align-items:center;justify-content:space-between;gap:0.75rem;flex-wrap:wrap;padding:0.7rem 0.85rem;border:1px solid var(--border);border-radius:10px;background:var(--surface-muted);margin-bottom:1rem;}
.pcg-toolbar-actions{display:flex;gap:0.5rem;align-items:center;}
.pcg-viewport-wrap{position:relative;border-radius:12px;overflow:hidden;background:#f8fafc;border:1px solid var(--pcg-border-soft);min-height:min(52vh,420px);display:flex;align-items:center;justify-content:center;}
.pcg-canvas-el{display:block;max-width:100%;height:auto;vertical-align:middle;}
.pcg-viewport-meta{display:flex;flex-wrap:wrap;gap:0.5rem 1rem;align-items:center;justify-content:space-between;margin-top:0.65rem;}
.pcg-chip{font-size:0.75rem;letter-spacing:0.04em;text-transform:uppercase;color:#475569;background:#eef2ff;padding:0.25rem 0.55rem;border-radius:999px;border:1px solid #c7d2fe;}
.pcg-file{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none;}
.pcg-drop-slab{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0.35rem;padding:2.5rem 1rem;border-radius:12px;border:2px dashed rgba(113,113,122,0.35);background:var(--surface);cursor:pointer;transition:border-color 0.2s,background 0.2s;}
.pcg-drop-slab:hover,.pcg-drop-slab:focus-within{border-color:var(--primary);background:rgba(99,102,241,0.08);}
.pcg-drop-slab:focus{outline:2px solid var(--primary);outline-offset:2px;}
.pcg-drop-title{color:var(--text-main);font-weight:600;font-size:1rem;margin:0;}
.pcg-drop-hint{color:var(--text-muted);font-size:0.85rem;margin:0;text-align:center;max-width:28rem;line-height:1.45;}
.pcg-replace-name{color:var(--text-main);font-size:0.88rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(100%,220px);}
.pcg-btn-ghost{background:var(--surface);border:1px solid var(--border);color:var(--text-main);font-size:0.85rem;padding:0.42rem 0.8rem;border-radius:8px;cursor:pointer;}
.pcg-btn-ghost:hover{border-color:var(--primary);color:var(--primary-dark);}
.pcg-btn-clear{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;font-size:0.85rem;padding:0.42rem 0.8rem;border-radius:8px;cursor:pointer;}
.pcg-btn-clear:hover{background:#fee2e2;}
.pcg-mixer{margin-top:1.25rem;}
.pcg-lane-rail{display:flex;gap:0.35rem;overflow-x:auto;padding-bottom:0.35rem;margin-bottom:0.75rem;-webkit-overflow-scrolling:touch;scrollbar-width:thin;}
.pcg-lane-rail::-webkit-scrollbar{height:4px;}
.pcg-lane-rail::-webkit-scrollbar-thumb{background:rgba(148,163,184,0.35);border-radius:4px;}
.pcg-lane-btn{flex:0 0 auto;border:none;background:#eef2ff;color:#334155;font-size:0.82rem;font-weight:600;padding:0.5rem 0.9rem;border-radius:999px;cursor:pointer;border:1px solid #e2e8f0;transition:background 0.2s,color 0.2s,box-shadow 0.2s;}
.pcg-lane-btn[aria-selected="true"]{background:rgba(99,102,241,0.16);color:#312e81;border-color:rgba(129,140,248,0.4);box-shadow:0 0 10px var(--pcg-glow);}
.pcg-lane-panel{display:none;}
.pcg-lane-panel.pcg-lane-open{display:block;}
@media (min-width:768px){.pcg-lane-rail{display:none;}.pcg-lane-panel{display:block!important;}.pcg-mixer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;}}
.pcg-lane-cap{font-size:0.7rem;text-transform:uppercase;letter-spacing:0.08em;color:#64748b;margin:0 0 0.65rem;font-weight:700;}
.pcg-slider-block{margin-bottom:1rem;}
.pcg-slider-block:last-child{margin-bottom:0;}
.pcg-slider-top{display:flex;justify-content:space-between;align-items:baseline;gap:0.5rem;margin-bottom:0.35rem;}
.pcg-slider-top label{font-size:0.88rem;color:var(--text-main);font-weight:600;margin:0;}
.pcg-slider-val{font-variant-numeric:tabular-nums;font-size:0.8rem;color:var(--text-muted);}
.pcg-range{width:100%;height:6px;border-radius:999px;background:rgba(148,163,184,0.2);-webkit-appearance:none;appearance:none;}
.pcg-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,#a5b4fc,#6366f1);box-shadow:0 2px 10px var(--pcg-glow);cursor:pointer;border:2px solid #fff;}
.pcg-range::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,#a5b4fc,#6366f1);border:2px solid #fff;cursor:pointer;}
.pcg-actions{display:flex;flex-wrap:wrap;gap:0.6rem;margin-top:1.15rem;}
.pcg-btn-solid{background:linear-gradient(135deg,#6366f1,#4f46e5);border:none;color:#fff;font-weight:600;font-size:0.9rem;padding:0.55rem 1.1rem;border-radius:10px;cursor:pointer;box-shadow:0 6px 20px rgba(79,70,229,0.35);}
.pcg-btn-solid:hover{filter:brightness(1.06);}
.pcg-btn-muted{background:var(--surface);border:1px solid var(--border);color:var(--text-main);font-weight:600;font-size:0.9rem;padding:0.55rem 1rem;border-radius:10px;cursor:pointer;}
.pcg-btn-muted:hover{border-color:#cbd5e1;background:#fafafa;}
.pcg-empty-hint{color:#64748b;font-size:0.85rem;margin:0.5rem 0 0;text-align:center;}