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#3d9bff;--bg: #ffffff;--bg-subtle: #f9f9fb;--bg-muted: #f2f3f5;--bg-hover: #f0f1f4;--bg-active: #ebe8ff;--sidebar-bg: #fbfbfc;--surface: #ffffff;--surface-raised: #ffffff;--border: #e6e7eb;--border-strong: #d5d7dd;--text: #22252b;--text-2: #4d525c;--text-muted: #868b96;--text-faint: #b0b4bc;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);--shadow: 0 4px 16px rgba(16, 24, 40, .08), 0 1px 3px rgba(16, 24, 40, .06);--shadow-lg: 0 16px 48px rgba(16, 24, 40, .16), 0 2px 8px rgba(16, 24, 40, .08);--radius-sm: 6px;--radius: 8px;--radius-lg: 12px;--font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--ease: cubic-bezier(.2, .8, .2, 1);--series-1: #2a78d6;--series-2: #eb6834;--series-3: #1baf7a;--grid: #ececef;color-scheme:light}:root[data-theme=dark]{--brand-50: #2b2745;--bg: #1b1c1f;--bg-subtle: #202124;--bg-muted: #26272b;--bg-hover: #2b2c31;--bg-active: #2f2a52;--sidebar-bg: #17181a;--surface: #222326;--surface-raised: #2a2b2f;--border: #33353a;--border-strong: #42444a;--text: #ececee;--text-2: #c3c5ca;--text-muted: #8e929b;--text-faint: #62666e;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .55);--series-1: #3987e5;--series-2: #d95926;--series-3: #199e70;--grid: #2e3034;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;height:100%}body{font-family:var(--font);font-size:14px;line-height:1.45;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;transition:background .2s,color .2s}a{color:var(--brand);text-decoration:none}h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.01em}button,input,select,textarea{font:inherit;color:inherit}::selection{background:color-mix(in srgb,var(--brand) 30%,transparent)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:10px;border:3px solid transparent;background-clip:content-box}::-webkit-scrollbar-track{background:transparent}.btn{display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:13px;font-weight:550;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,box-shadow .15s,transform .05s}.btn:hover{background:var(--bg-hover)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{background:var(--brand-600)}.btn.ghost{background:transparent;border-color:transparent}.btn.ghost:hover{background:var(--bg-hover)}.btn.danger{color:var(--danger)}.btn.danger:hover{background:color-mix(in srgb,var(--danger) 10%,transparent)}.btn.sm{height:26px;padding:0 8px;font-size:12px}.btn.lg{height:40px;padding:0 18px;font-size:14px}.btn.icon{width:32px;padding:0;justify-content:center}.btn.icon.sm{width:26px}.input{height:34px;padding:0 10px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);outline:none;width:100%;transition:border-color .15s,box-shadow .15s}.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 18%,transparent)}.input::placeholder{color:var(--text-faint)}textarea.input{height:auto;padding:8px 10px;resize:vertical}.input-bare{border:none;outline:none;background:transparent;width:100%;padding:0}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.menu{min-width:200px;max-height:360px;overflow:auto;padding:6px;background:var(--surface-raised);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);animation:tf-pop .12s var(--ease)}.menu-label{padding:6px 8px 4px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted)}.menu-item{display:flex;align-items:center;gap:8px;width:100%;padding:7px 8px;border:none;border-radius:var(--radius-sm);background:transparent;text-align:left;font-size:13px;cursor:pointer}.menu-item:hover,.menu-item.active{background:var(--bg-hover)}.menu-item.selected{background:var(--bg-active)}.menu-item.danger{color:var(--danger)}.menu-item .grow{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.menu-sep{height:1px;margin:6px 0;background:var(--border)}.chip{display:inline-flex;align-items:center;gap:4px;height:20px;padding:0 7px;border-radius:4px;font-size:11px;font-weight:600;white-space:nowrap}.kbd{display:inline-flex;align-items:center;padding:1px 5px;border-radius:4px;border:1px solid var(--border);background:var(--bg-muted);font-size:11px;font-family:var(--mono);color:var(--text-muted)}.muted{color:var(--text-muted)}.faint{color:var(--text-faint)}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.row{display:flex;align-items:center;gap:8px}.spacer{flex:1}.skeleton{border-radius:6px;background:linear-gradient(90deg,var(--bg-muted) 25%,var(--bg-hover) 37%,var(--bg-muted) 63%);background-size:400% 100%;animation:tf-shimmer 1.4s ease infinite}.page{height:100%;display:flex;flex-direction:column;min-height:0}.page-header{display:flex;align-items:center;gap:12px;padding:14px 24px;border-bottom:1px solid var(--border);min-height:58px}.page-header h1{font-size:18px}.page-body{flex:1;min-height:0;overflow:auto}.markdown{line-height:1.65;word-wrap:break-word}.markdown>:first-child{margin-top:0}.markdown h1{font-size:1.9em;margin:.6em 0 .4em}.markdown h2{font-size:1.45em;margin:1.1em 0 .4em}.markdown h3{font-size:1.2em;margin:1em 0 .3em}.markdown 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solid var(--brand);background:var(--brand-50);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.markdown blockquote p{margin:0}.markdown table{border-collapse:collapse;margin:.8em 0;width:100%}.markdown table th,.markdown table td{border:1px solid var(--border);padding:6px 10px;text-align:left}.markdown table th{background:var(--bg-subtle);font-weight:600}.markdown hr{border:none;border-top:1px solid var(--border);margin:1.4em 0}.markdown a{text-decoration:underline;text-underline-offset:2px}.markdown .mention{color:var(--brand);font-weight:600;background:var(--brand-50);border-radius:4px;padding:0 3px}.cdk-overlay-pane{font-family:var(--font)}.tf-backdrop{background:#0f101459;-webkit-backdrop-filter:blur(1.5px);backdrop-filter:blur(1.5px)}.cdk-drag-preview{box-shadow:var(--shadow-lg);border-radius:var(--radius);transform-origin:center;rotate:2deg;opacity:.95}.cdk-drag-placeholder{opacity:.35}.cdk-drag-animating{transition:transform .2s var(--ease)}.cdk-drop-list-dragging 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