:root{--bg: #f4f6f9;--bg-2: #ffffff;--bg-3: #eef1f5;--border: #dde3ea;--text: #1c2333;--text-dim: #667085;--accent: #3b82f6;--accent-2: #7c5cff;--danger: #e5484d;--ok: #30a46c;--warn: #f5a623;--radius: 10px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Microsoft YaHei,sans-serif;font-size:14px}button{font:inherit;cursor:pointer}input,textarea,select{font:inherit;color:var(--text)}.btn{background:var(--bg-3);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:7px 14px;transition:background .15s}.btn:hover{background:#e2e8f0}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:#2f6fe0}.btn.danger{color:var(--danger)}.btn.small{padding:4px 10px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.input,.textarea,.select{background:var(--bg-2);border:1px solid var(--border);border-radius:8px;padding:8px 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svg{width:15px;height:15px;flex-shrink:0}.tool-card small{margin-left:auto}.layerbar{margin-top:10px;border:1px solid var(--border);border-radius:10px;background:var(--bg-2);padding:8px 10px;display:flex;flex-direction:column;gap:8px;flex-shrink:0}.layerbar-head{display:flex;align-items:center;gap:10px}.layerbar-head h3{font-size:12px;letter-spacing:1px;color:var(--text-dim);margin:0;flex:1}.layerbar-strip{display:flex;gap:8px;overflow-x:auto;padding-bottom:2px}.layer-chip{display:flex;align-items:center;gap:6px;padding:5px 10px;background:var(--bg-3);border:1px solid var(--border);border-radius:8px;font-size:12px;color:var(--text-dim);cursor:pointer;white-space:nowrap;flex-shrink:0}.layer-chip:hover{border-color:#c3cede;color:var(--text)}.layer-chip.selected{border-color:var(--accent);color:var(--accent);background:#e8f0fe}.layer-chip .kind{font-weight:600}.layer-chip .name{max-width:140px;overflow:hidden;text-overflow:ellipsis}.layer-chip 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var(--border);border-radius:12px;padding:18px;margin-bottom:18px;max-width:860px}.admin-wrap h2{margin:0 0 14px;font-size:16px}table.admin{width:100%;border-collapse:collapse}table.admin th,table.admin td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border);font-size:13px}table.admin th{color:var(--text-dim);font-weight:500}.provider-row{display:flex;gap:10px;align-items:center;padding:8px 0;border-bottom:1px solid var(--border);flex-wrap:wrap}.provider-row .cap{width:110px;font-weight:500}.provider-row .type{width:140px}.provider-row .cfg{flex:1;min-width:220px}.provider-row .cfg input{background:var(--bg)}.canvas-hint{position:absolute;left:12px;bottom:12px;z-index:10;background:#ffffffeb;border:1px solid var(--border);border-radius:8px;padding:6px 12px;font-size:12px;color:var(--text-dim);pointer-events:none}.empty-canvas{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:var(--text-dim);cursor:pointer}.empty-canvas:hover{color:var(--text)}.empty-canvas svg{width:44px;height:44px;opacity:.5}.toast-wrap{position:fixed;bottom:20px;left:50%;transform:translate(-50%);z-index:200;display:flex;flex-direction:column;gap:8px;align-items:center}.toast{background:var(--bg-3);border:1px solid var(--border);border-radius:10px;padding:10px 18px;font-size:13px;box-shadow:0 8px 30px #0f172a2e;animation:toast-in .2s}.toast.error{border-color:var(--danger);color:var(--danger)}.toast.ok{border-color:var(--ok);color:var(--ok)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}}