:root{--bg: #f4f5fa;--panel: #ffffff;--ink: #171a26;--ink-2: #41465a;--muted: #7b8194;--line: #e8eaf2;--line-2: #f0f2f8;--brand: #4f46e5;--brand-soft: #eef0ff;--cyan: #06b6d4;--ok: #10b981;--warn: #f59e0b;--err: #ef4444;--radius: 16px;--shadow-sm: 0 1px 2px rgba(20, 24, 40, .05);--shadow: 0 8px 30px rgba(20, 24, 40, .08);--shadow-lg: 0 24px 60px rgba(20, 24, 40, .16)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-size:14px}button{font-family:inherit;cursor:pointer}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:#d6d9e4;border-radius:8px}::-webkit-scrollbar-track{background:transparent}.app{display:flex;flex-direction:column;height:100%;min-height:0}.topbar{display:flex;align-items:center;gap:14px;padding:12px 20px;background:var(--panel);border-bottom:1px solid var(--line);flex:0 0 auto;z-index:5}.logo{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;display:grid;place-items:center;font-weight:700;font-size:17px;letter-spacing:-.5px;box-shadow:0 4px 12px #4f46e552}.brand-text h1{margin:0;font-size:15px;font-weight:650;letter-spacing:-.2px}.brand-text p{margin:1px 0 0;font-size:12px;color:var(--muted)}.topbar-spacer{flex:1}.workspace{flex:1;min-height:0;display:grid;grid-template-columns:288px minmax(0,1fr) 390px;gap:14px;padding:14px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;min-height:0;overflow:hidden}.panel-head{padding:13px 16px;border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:8px;flex:0 0 auto}.panel-head h2{margin:0;font-size:13px;font-weight:650}.panel-head .badge{margin-left:auto;font-size:11px;color:var(--muted);background:var(--line-2);padding:2px 8px;border-radius:20px}.panel-body{padding:14px;overflow:auto;min-height:0;flex:1}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--ink-2);border-radius:10px;padding:8px 13px;font-size:13px;font-weight:550;transition:.15s;white-space:nowrap}.btn:hover:not(:disabled){border-color:#d3d7e6;background:#fbfbfe}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:linear-gradient(135deg,var(--brand),#6366f1);border-color:transparent;color:#fff;box-shadow:0 4px 14px #4f46e547}.btn.primary:hover:not(:disabled){filter:brightness(1.06);background:linear-gradient(135deg,var(--brand),#6366f1)}.btn.ghost{border-color:transparent;background:transparent}.btn.ghost:hover:not(:disabled){background:var(--line-2)}.btn.sm{padding:5px 10px;font-size:12px;border-radius:8px}.btn.danger{color:var(--err)}.dropzone{border:1.5px dashed #cfd4e6;border-radius:14px;padding:22px 14px;text-align:center;transition:.18s;background:#fbfbff;cursor:pointer}.dropzone:hover,.dropzone.over{border-color:var(--brand);background:var(--brand-soft)}.dropzone .dz-icon{font-size:24px;line-height:1}.dropzone strong{display:block;margin-top:8px;font-size:13px;font-weight:600}.dropzone span{display:block;margin-top:4px;font-size:12px;color:var(--muted)}.section-label{font-size:11px;font-weight:650;color:var(--muted);letter-spacing:.4px;margin:18px 0 8px;text-transform:uppercase}.asset-list{display:flex;flex-direction:column;gap:7px}.asset{display:flex;align-items:center;gap:9px;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:#fdfdff}.asset .ico{width:26px;height:26px;border-radius:7px;display:grid;place-items:center;font-size:12px;font-weight:700;color:#fff;flex:0 0 auto}.asset .name{font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}.asset .meta{font-size:11px;color:var(--muted)}.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{border:1px solid var(--line);background:#fff;border-radius:20px;padding:5px 11px;font-size:12px;color:var(--ink-2);transition:.15s}.chip:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}.stage{display:flex;flex-direction:column;min-height:0;background:#eceef6}.stage-bar{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--panel);border-bottom:1px solid var(--line);flex:0 0 auto}.seg{display:inline-flex;background:var(--line-2);border-radius:9px;padding:3px;gap:2px}.seg button{border:none;background:transparent;padding:5px 12px;border-radius:7px;font-size:12px;color:var(--muted);font-weight:550}.seg button.on{background:#fff;color:var(--ink);box-shadow:var(--shadow-sm)}.stage-canvas{flex:1;min-height:0;overflow:auto;display:grid;place-items:start center;padding:18px}.stage-canvas canvas{border-radius:6px;box-shadow:var(--shadow);background:#fff}.empty{height:100%;display:grid;place-items:center;text-align:center;color:var(--muted);padding:30px}.empty .big{font-size:40px;margin-bottom:12px}.empty h3{margin:0 0 6px;font-size:15px;color:var(--ink)}.empty p{margin:0;font-size:13px;line-height:1.7;max-width:340px}.chat-body{flex:1;min-height:0;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:14px}.msg{display:flex;flex-direction:column;gap:6px}.msg.user{align-items:flex-end}.bubble{max-width:88%;padding:10px 13px;border-radius:14px;font-size:13.5px;line-height:1.65;white-space:pre-wrap;word-break:break-word}.msg.user .bubble{background:linear-gradient(135deg,var(--brand),#6366f1);color:#fff;border-bottom-right-radius:5px}.msg.agent .bubble{background:#f6f7fc;color:var(--ink-2);border-bottom-left-radius:5px}.msg.agent.error .bubble{background:#fef2f2;color:#b42318}.plan-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;max-width:92%}.plan-card .head{padding:8px 12px;background:var(--brand-soft);font-size:12px;font-weight:600;color:var(--brand)}.step{display:flex;align-items:flex-start;gap:8px;padding:9px 12px;border-top:1px solid var(--line-2);font-size:12.5px;line-height:1.5}.step .dot{width:16px;height:16px;border-radius:50%;display:grid;place-items:center;font-size:10px;color:#fff;flex:0 0 auto;margin-top:1px}.step .dot.ok{background:var(--ok)}.step .dot.err{background:var(--err)}.step .dot.run{background:var(--warn);animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.45}}.step .txt{flex:1;min-width:0}.step .sub{color:var(--muted);font-size:11.5px;margin-top:2px}.composer{border-top:1px solid var(--line);padding:12px;background:#fff;flex:0 0 auto}.composer 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label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px;font-weight:550}.field input{width:100%;border:1px solid var(--line);border-radius:10px;padding:9px 11px;font-size:13px;font-family:inherit;outline:none}.field input:focus{border-color:var(--brand)}.switch{display:flex;align-items:center;gap:9px;font-size:13px}.tip{font-size:12px;color:var(--muted);line-height:1.7;background:#f8f9fd;border-radius:10px;padding:10px 12px}.file-chip{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:20px;background:var(--line-2);font-size:12.5px;color:var(--ink-2);max-width:260px}.file-chip .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.spin{width:13px;height:13px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes 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13px}.model-hint{font-size:11.5px;color:var(--muted);margin-top:7px;line-height:1.6}.model-hint.ok{color:var(--ok)}.model-hint.err{color:var(--err)}.tabs,.mobile-file,.mobile-only{display:none}@media (max-width: 1180px){.workspace{grid-template-columns:250px minmax(0,1fr) 330px}}@media (max-width: 980px){body{font-size:15px}.workspace{grid-template-columns:1fr;grid-template-rows:none;overflow:auto;padding:10px;gap:10px}.tabs{display:flex;gap:6px;padding:10px 10px 0;flex:0 0 auto}.tabs button{flex:1;border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 0;font-size:14px;font-weight:550;color:var(--muted)}.tabs button.on{background:var(--brand);border-color:var(--brand);color:#fff}.tab-hidden,.desktop-only{display:none!important}.mobile-only{display:flex}.topbar{padding:9px 12px;gap:6px;flex-wrap:nowrap;overflow:hidden}.topbar .brand-text{min-width:0;flex:1}.topbar .brand-text h1{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar .brand-text p,.topbar .file-chip{display:none}.topbar .btn{padding:8px 10px;font-size:12px;flex:0 0 auto}.stage-bar{flex-wrap:wrap;gap:8px}.mobile-file{display:block;flex:1 1 100%;font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn{padding:9px 12px}.stage-canvas{padding:10px;min-height:55vh}.chat-body{max-height:58vh}.panel-body{padding:12px}.chip{padding:7px 12px}}