:root {
            --bg: #f0f2f5;
            --panel-bg: #ffffff;
            --panel-bg-secondary: #fafbfc;
            --border: #e4e7ed;
            --text: #1d2129;
            --text-secondary: #4e5a6e;
            --text-muted: #86909c;
            --primary: #4a6cf7;
            --primary-hover: #3a5cd9;
            --primary-light: #e8eeff;
            --primary-gradient: linear-gradient(135deg, #4a6cf7 0%, #6d8cff 100%);
            --success: #34c759;
            --success-light: #e8f9ed;
            --warning: #ff9500;
            --warning-light: #fff5e6;
            --danger: #ff3b30;
            --danger-light: #ffebea;
            --purple: #7b4cdb;
            --purple-light: #f0ebff;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.10);
            --radius: 10px;
            --radius-sm: 6px;
            --transition: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            height: 100vh;
            overflow: hidden;
            user-select: none;
        }
        ::-webkit-scrollbar {
            width: 0px;
            height: 0px;
        }
        ::-webkit-scrollbar-track {
            background: transparent;
        }
        ::-webkit-scrollbar-thumb {
            background: transparent;
        }

        /* ===== ??????===== */
        .toolbar {
            height: 52px;
            background: var(--panel-bg);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            padding: 0 16px;
            gap: 8px;
            z-index: 100;
            position: relative;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            flex-shrink: 0;
        }
        .toolbar .logo {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-right: 4px;
        }
        .toolbar .logo-icon {
            width: 30px;
            height: 30px;
            background: var(--primary-gradient);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            box-shadow: 0 2px 8px rgba(74, 108, 247, 0.3);
        }
        .toolbar .logo span {
            color: var(--text-secondary);
            font-weight: 400;
            font-size: 12px;
            margin-left: 2px;
        }
        .toolbar .divider {
            width: 1px;
            height: 26px;
            background: var(--border);
            margin: 0 4px;
            flex-shrink: 0;
        }
        .toolbar button {
            padding: 6px 12px;
            border: 1px solid var(--border);
            background: var(--panel-bg);
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 12px;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
            font-family: inherit;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            height: 32px;
            line-height: 1;
        }
        .toolbar button:hover {
            background: var(--panel-bg-secondary);
            border-color: #c8ced9;
            color: var(--text);
        }
        .toolbar button:active {
            transform: scale(0.96);
        }
        .toolbar button.primary {
            background: var(--primary-gradient);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(74, 108, 247, 0.25);
        }
        .toolbar button.primary:hover {
            box-shadow: 0 4px 14px rgba(74, 108, 247, 0.35);
            background: linear-gradient(135deg, #3a5cd9, #5d7cf5);
        }
        .toolbar button.success {
            background: var(--success);
            color: #fff;
            border-color: var(--success);
            box-shadow: 0 2px 8px rgba(52, 199, 89, 0.25);
        }
        .toolbar button.success:hover {
            box-shadow: 0 4px 14px rgba(52, 199, 89, 0.35);
            background: #2db84e;
        }
        .toolbar button.danger {
            color: var(--danger);
            border-color: #ffcdca;
        }
        .toolbar button.danger:hover {
            background: var(--danger-light);
            border-color: #ffa59e;
        }
        .toolbar button.btn-warning {
            background: #fff3e0;
            color: #e65100;
            border-color: #ffb74d;
        }
        .toolbar button.btn-warning:hover {
            background: #ffe0b2;
            border-color: #ff9800;
        }
        .toolbar button.btn-success {
            background: #e8f5e9;
            color: #2e7d32;
            border-color: #81c784;
        }
        .toolbar button.btn-success:hover {
            background: #c8e6c9;
            border-color: #4caf50;
        }
        .toolbar button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            pointer-events: none;
        }
        .toolbar .hint {
            font-size: 11px;
            color: var(--text-muted);
            margin-left: auto;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .toolbar .hint kbd {
            background: var(--panel-bg-secondary);
            padding: 1px 6px;
            border-radius: 3px;
            font-size: 10px;
            border: 1px solid var(--border);
            font-family: var(--font);
            color: var(--text-secondary);
        }

        /* ===== ?? ===== */
        .main-container {
            display: flex;
            height: calc(100vh - 52px);
            position: relative;
        }

        /* ===== ???? ===== */
        .side-panel {
            width: 195px;
            min-width: 195px;
            background: var(--panel-bg);
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            z-index: 10;
            overflow-y: auto;
            padding-bottom: 12px;
        }
        .side-panel .panel-section {
            padding: 12px 14px;
            border-bottom: 1px solid var(--border);
        }
        .side-panel .panel-section:last-child {
            border-bottom: none;
        }
        .side-panel .panel-title {
            font-size: 10px;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .node-template {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            background: var(--panel-bg-secondary);
            border: 1.5px solid transparent;
            border-radius: var(--radius-sm);
            cursor: grab;
            transition: var(--transition);
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-bottom: 4px;
            position: relative;
        }
        .node-template:last-child {
            margin-bottom: 0;
        }
        .node-template:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            color: var(--primary);
            box-shadow: 0 2px 8px rgba(74, 108, 247, 0.08);
            transform: translateX(2px);
        }
        .node-template:active {
            cursor: grabbing;
            transform: scale(0.97);
        }
        .node-template .icon-dot {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            color: #fff;
            font-weight: 700;
        }
        .node-template.start .icon-dot {
            background: var(--success);
        }
        .node-template.end .icon-dot {
            background: var(--danger);
        }
        .node-template.condition .icon-dot {
            background: var(--purple);
        }
        .node-template.switch .icon-dot {
            background: var(--purple);
        }
        .node-template.loop .icon-dot {
            background: var(--purple);
        }
        .node-template.parallel .icon-dot {
            background: var(--purple);
        }
        .node-template.delay .icon-dot {
            background: var(--text-muted);
        }
        .node-template.timer .icon-dot {
            background: #f59e0b;
        }
        .node-template.ai_call .icon-dot {
            background: linear-gradient(135deg, #7b4cdb, #a855f7);
        }
        .node-template.http .icon-dot {
            background: #0ea5e9;
        }
        .node-template.function .icon-dot {
            background: #f59e0b;
        }
        .node-template.code .icon-dot {
            background: #1e293b;
        }
        .node-template.email .icon-dot {
            background: #ec4899;
        }
        .node-template.notification .icon-dot {
            background: #f97316;
        }
        .node-template.database .icon-dot {
            background: #14b8a6;
        }
        .node-template.file .icon-dot {
            background: #64748b;
        }
        .node-template.human .icon-dot {
            background: var(--warning);
        }
        .node-template.transform .icon-dot {
            background: #06b6d4;
        }
        .node-template.output .icon-dot {
            background: #0ea5e9;
        }
        .node-template.text .icon-dot {
            background: #0ea5e9;
        }
        .node-template.folder .icon-dot {
            background: #f59e0b;
        }
        .node-template.resource .icon-dot {
            background: linear-gradient(135deg, #0ea5e9, #38bdf8);
        }
        .node-template.smart_create .icon-dot {
            background: linear-gradient(135deg, #ec4899, #f472b6);
        }
        .node-template .template-label {
            flex: 1;
        }

        /* ===== ?? ===== */
        .canvas-container {
            flex: 1;
            display: flex;
            flex-direction: column;
            overflow: hidden;
            position: relative;
        }
        .canvas-wrapper {
            flex: 1;
            overflow: hidden;
            position: relative;
            background: #f7f9fc;
            cursor: grab;
        }
        .canvas-wrapper.grabbing {
            cursor: grabbing;
        }
        .canvas-wrapper.panning {
            cursor: grabbing;
        }
        .canvas-inner {
            width: 4000px;
            height: 2800px;
            position: relative;
            transform-origin: 0 0;
            background: #f7f9fc;
            background-image:
                linear-gradient(rgba(200, 208, 220, 0.35) 1px, transparent 1px),
                linear-gradient(90deg, rgba(200, 208, 220, 0.35) 1px, transparent 1px),
                radial-gradient(circle, rgba(180, 190, 205, 0.30) 1px, transparent 1.5px);
            background-size: 100px 100px, 100px 100px, 20px 20px;
            background-position: 0 0, 0 0, 0 0;
        }

        /* ===== ?? ===== */
        .wf-node {
            position: absolute;
            background: var(--panel-bg);
            border: 2px solid #dde1e7;
            border-radius: var(--radius);
            min-width: 160px;
            cursor: default;
            transition: box-shadow 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            z-index: 1;
            min-height: 56px;
        }
        .wf-node:hover {
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.09);
            border-color: #c8d0db;
        }
        .wf-node.selected {
            border-color: var(--primary) !important;
            box-shadow: 0 0 0 4px rgba(74, 108, 247, 0.12), 0 4px 20px rgba(0, 0, 0, 0.08) !important;
            z-index: 12 !important;
        }
        .wf-node.dragging {
            z-index: 50 !important;
            box-shadow: var(--shadow-lg) !important;
            border-color: var(--primary) !important;
            opacity: 0.92;
            transition: none;
        }
        .wf-node.dragging .node-delete-btn {
            opacity: 1;
            pointer-events: auto;
        }
        .wf-node.running {
            animation: nodeRunning 1.2s ease-in-out infinite;
        }
        @keyframes nodeRunning {
            0%,
            100% {
                box-shadow: 0 0 0 4px rgba(52, 199, 89, 0.25), 0 4px 16px rgba(0, 0, 0, 0.08);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(52, 199, 89, 0.08), 0 4px 24px rgba(52, 199, 89, 0.12);
            }
        }
        .wf-node.waiting {
            border-color: var(--warning) !important;
            box-shadow: 0 0 0 4px rgba(255, 149, 0, 0.15) !important;
        }
        .wf-node.completed {
            border-color: var(--success) !important;
            background: var(--success-light) !important;
        }
        .wf-node.failed {
            border-color: var(--danger) !important;
            background: var(--danger-light) !important;
        }
        .wf-node .node-header {
            padding: 9px 14px 6px;
            font-weight: 600;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: move;
            border-radius: var(--radius) var(--radius) 0 0;
            color: var(--text);
        }
        .wf-node .node-header .node-icon {
            font-size: 11px;
            width: 22px;
            height: 22px;
            text-align: center;
            line-height: 22px;
            flex-shrink: 0;
            border-radius: 50%;
        }
        .wf-node .node-header .node-title {
            flex: 1;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .wf-node .node-body {
            padding: 4px 14px 9px;
            font-size: 11px;
            color: var(--text-muted);
            border-top: 1px solid #f0f2f5;
            min-height: 22px;
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .wf-node .node-type-badge {
            font-size: 9px;
            padding: 2px 8px;
            border-radius: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            text-transform: uppercase;
            flex-shrink: 0;
            background: var(--panel-bg-secondary);
            color: var(--text-muted);
        }
        .wf-node.type-start {
            border-left: 4px solid var(--success);
        }
        .wf-node.type-start .node-type-badge {
            background: var(--success-light);
            color: #28a745;
        }
        .wf-node.type-end {
            border-left: 4px solid var(--danger);
        }
        .wf-node.type-end .node-type-badge {
            background: var(--danger-light);
            color: #dc3545;
        }
        .wf-node.type-condition .node-type-badge {
            background: var(--purple-light);
            color: var(--purple);
        }
        .wf-node.type-switch .node-type-badge {
            background: var(--purple-light);
            color: var(--purple);
        }
        .wf-node.type-loop .node-type-badge {
            background: var(--purple-light);
            color: var(--purple);
        }
        .wf-node.type-parallel .node-type-badge {
            background: var(--purple-light);
            color: var(--purple);
        }
        .wf-node.type-timer .node-type-badge {
            background: #fff8e6;
            color: #f59e0b;
        }
        .wf-node.type-ai_call .node-type-badge {
            background: var(--purple-light);
            color: var(--purple);
        }
        .wf-node.type-http .node-type-badge {
            background: #e6f4ff;
            color: #0ea5e9;
        }
        .wf-node.type-function .node-type-badge {
            background: #fff8e6;
            color: #f59e0b;
        }
        .wf-node.type-code .node-type-badge {
            background: #e8eaed;
            color: #1e293b;
        }
        .wf-node.type-email .node-type-badge {
            background: #fce8f2;
            color: #ec4899;
        }
        .wf-node.type-notification .node-type-badge {
            background: #fff0e6;
            color: #f97316;
        }
        .wf-node.type-database .node-type-badge {
            background: #e6faf8;
            color: #14b8a6;
        }
        .wf-node.type-file .node-type-badge {
            background: #f0f2f5;
            color: #64748b;
        }
        .wf-node.type-human .node-type-badge {
            background: var(--warning-light);
            color: var(--warning);
        }
        .wf-node.type-transform .node-type-badge {
            background: #e6f9fc;
            color: #06b6d4;
        }
        .wf-node.type-output .node-type-badge {
            background: #e6f4ff;
            color: #0ea5e9;
        }
        .wf-node.type-text .node-type-badge {
            background: #e6f4ff;
            color: #0ea5e9;
        }
        .wf-node.type-smart_create .node-type-badge {
            background: #fce7f3;
            color: #ec4899;
        }
        .wf-node.type-smart_create {
            border-left: 4px solid #ec4899;
        }
        .wf-node.type-smart_create .node-body.smart-create-body {
            padding: 8px 14px 10px;
            min-height: 52px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            align-items: stretch;
        }
        .smart-create-mode-badge {
            font-size: 10px;
            color: var(--text-muted);
            background: var(--panel-bg-secondary);
            padding: 2px 6px;
            border-radius: 4px;
            margin-bottom: 4px;
            display: inline-block;
        }
        .smart-create-desc {
            font-size: 11px;
            color: var(--text-muted);
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            min-height: 16px;
        }
        .smart-create-btn {
            width: 100%;
            padding: 8px 0;
            border: none;
            border-radius: 8px;
            background: linear-gradient(135deg, #ec4899, #f472b6);
            color: #fff;
            cursor: pointer;
            font-size: 13px;
            font-weight: 600;
            font-family: inherit;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            transition: all 0.2s ease;
            box-shadow: 0 2px 8px rgba(236, 72, 153, 0.25);
        }
        .smart-create-btn:hover:not(:disabled) {
            background: linear-gradient(135deg, #db2777, #ec4899);
            box-shadow: 0 4px 16px rgba(236, 72, 153, 0.35);
            transform: translateY(-1px);
        }
        .smart-create-btn:active:not(:disabled) {
            transform: translateY(0);
        }
        .smart-create-btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        .wf-node .node-delete-btn {
            position: absolute;
            top: -10px;
            right: -10px;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--panel-bg);
            border: 2px solid var(--border);
            color: var(--text-muted);
            font-size: 10px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            z-index: 15;
            padding: 0;
            opacity: 0;
            pointer-events: none;
        }
        .wf-node:hover .node-delete-btn,
        .wf-node.selected .node-delete-btn,
        .wf-node.dragging .node-delete-btn {
            opacity: 1;
            pointer-events: auto;
        }
        .wf-node .node-delete-btn:hover {
            background: var(--danger);
            color: #fff;
            border-color: var(--danger);
            box-shadow: 0 2px 8px rgba(255, 59, 48, 0.3);
        }

        .wf-node .node-status {
            position: absolute;
            top: -8px;
            left: -8px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--panel-bg);
            border: 2px solid var(--border);
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            z-index: 6;
            font-weight: 700;
        }
        .wf-node.running .node-status,
        .wf-node.waiting .node-status,
        .wf-node.completed .node-status,
        .wf-node.failed .node-status {
            display: flex;
        }
        .wf-node.running .node-status {
            border-color: var(--success);
            color: var(--success);
        }
        .wf-node.waiting .node-status {
            border-color: var(--warning);
            color: var(--warning);
        }
        .wf-node.completed .node-status {
            border-color: var(--success);
            background: var(--success);
            color: #fff;
        }
        .wf-node.failed .node-status {
            border-color: var(--danger);
            background: var(--danger);
            color: #fff;
        }

        .wf-node .ai-badge {
            position: absolute;
            top: -6px;
            right: 10px;
            background: linear-gradient(135deg, #7b4cdb, #a855f7);
            color: #fff;
            font-size: 8px;
            font-weight: 700;
            padding: 1px 7px;
            border-radius: 10px;
            letter-spacing: 0.3px;
            box-shadow: 0 2px 6px rgba(123, 76, 219, 0.3);
            z-index: 4;
            line-height: 16px;
        }

        /* ===== ?? ===== */
        .port {
            position: absolute;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--panel-bg);
            border: 2.5px solid #b8c0cd;
            cursor: crosshair;
            z-index: 2;
            transition: var(--transition);
            box-shadow: 0 0 0 2px transparent;
        }
        .port:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            box-shadow: 0 0 0 6px rgba(74, 108, 247, 0.15);
            transform: scale(1.15);
        }
        .port.port-in {
            left: -8px;
            top: 50%;
            transform: translateY(-50%);
        }
        .port.port-in:hover {
            transform: translateY(-50%) scale(1.15);
        }
        .port.port-out {
            right: -8px;
            top: 50%;
            transform: translateY(-50%);
        }
        .port.port-out:hover {
            transform: translateY(-50%) scale(1.15);
        }
        .port.port-out-yes {
            right: -8px;
            top: 30%;
            transform: translateY(-50%);
            border-color: var(--success);
        }
        .port.port-out-no {
            right: -8px;
            top: 70%;
            transform: translateY(-50%);
            border-color: var(--danger);
        }
        .port.port-multi {
            right: auto;
            top: 100%;
            transform: translateY(-8px);
        }
        .port.port-multi:hover {
            transform: translateY(-8px) scale(1.15);
        }
        .port.highlight-port {
            border-color: var(--primary) !important;
            background: var(--primary-light) !important;
            box-shadow: 0 0 0 10px rgba(74, 108, 247, 0.18) !important;
            animation: portPulse 0.6s ease-in-out infinite;
        }
        @keyframes portPulse {
            0%,
            100% {
                box-shadow: 0 0 0 8px rgba(74, 108, 247, 0.15);
            }
            50% {
                box-shadow: 0 0 0 16px rgba(74, 108, 247, 0.04);
            }
        }
        .port-label {
            position: absolute;
            font-size: 9px;
            color: var(--text-muted);
            white-space: nowrap;
            pointer-events: none;
            font-weight: 500;
        }
        .port-label-yes {
            right: 20px;
            top: 30%;
            transform: translateY(-50%);
            color: #28a745;
        }
        .port-label-no {
            right: 20px;
            top: 70%;
            transform: translateY(-50%);
            color: #dc3545;
        }
        .port-label-multi {
            right: auto;
            top: 100%;
            transform: translateY(-8px);
            margin-top: 6px;
            font-size: 8px;
            color: var(--text-muted);
        }

        /* ===== SVG?? ===== */
        .connections-svg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
            overflow: visible;
        }
        .connections-svg path.connection-line {
            pointer-events: stroke;
            cursor: pointer;
            transition: stroke 0.15s ease, stroke-width 0.15s ease;
        }
        .connections-svg path.connection-line:hover {
            stroke: #ff9500 !important;
            stroke-width: 3.5px !important;
        }
        .connections-svg path.connection-line.selected-line {
            stroke: #ff6b00 !important;
            stroke-width: 4px !important;
            filter: drop-shadow(0 0 6px rgba(255, 107, 0, 0.3));
        }
        .connections-svg path.connection-line.running {
            stroke: var(--success) !important;
            stroke-width: 3px !important;
            animation: lineFlow 0.8s linear infinite;
        }
        @keyframes lineFlow {
            to {
                stroke-dashoffset: -26;
            }
        }
        .connections-svg path.temp-line {
            pointer-events: none;
            stroke-dasharray: 8 5;
            animation: dashFlow 0.6s linear infinite;
        }
        @keyframes dashFlow {
            to {
                stroke-dashoffset: -26;
            }
        }

        /* ===== ???????===== */
        .right-panel {
            width: 320px;
            min-width: 320px;
            background: var(--panel-bg);
            border-left: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            z-index: 10;
            overflow: hidden;
            transition: transform 0.3s ease, width 0.3s ease, min-width 0.3s ease;
        }
        .right-panel.collapsed {
            transform: translateX(100%);
            width: 0;
            min-width: 0;
            border-left: none;
        }
        .right-panel .panel-header {
            padding: 10px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--panel-bg-secondary);
            flex-shrink: 0;
        }
        .right-panel .panel-header h3 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .right-panel .panel-header .collapse-btn {
            width: 28px;
            height: 28px;
            border: none;
            background: transparent;
            cursor: pointer;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 14px;
        }
        .right-panel .panel-header .collapse-btn:hover {
            background: var(--border);
            color: var(--text);
        }
        .right-panel .panel-content {
            flex: 1;
            overflow-y: auto;
            padding: 16px;
        }
        .property-group {
            margin-bottom: 14px;
        }
        .property-group:last-child {
            margin-bottom: 0;
        }
        .property-label {
            font-size: 11px;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .property-label .required {
            color: var(--danger);
        }
        .property-input,
        .property-select,
        .property-textarea {
            width: 100%;
            padding: 6px 10px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-family: inherit;
            color: var(--text);
            background: var(--panel-bg-secondary);
            transition: var(--transition);
        }
        .property-input:focus,
        .property-select:focus,
        .property-textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.08);
            background: var(--panel-bg);
        }
        .property-textarea {
            min-height: 60px;
            resize: vertical;
        }
        .property-mini {
            font-size: 10px;
            color: var(--text-muted);
            margin-top: 3px;
            line-height: 1.4;
        }
        .property-mini code {
            background: var(--panel-bg-secondary);
            padding: 1px 4px;
            border-radius: 3px;
            font-size: 10px;
            color: var(--primary);
        }
        .property-section-title {
            font-size: 11px;
            font-weight: 700;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin: 18px 0 10px 0;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .property-section-title:first-child {
            margin-top: 0;
            padding-top: 0;
            border-top: none;
        }
        .property-info {
            background: var(--panel-bg-secondary);
            border-radius: var(--radius-sm);
            padding: 10px 12px;
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .property-info .info-row {
            display: flex;
            justify-content: space-between;
            margin-bottom: 2px;
        }
        .property-info .info-row:last-child {
            margin-bottom: 0;
        }
        .property-info .info-label {
            color: var(--text-muted);
        }
        /* ??????? */
        .resource-browser-header {
            margin-bottom: 10px;
        }
        .resource-item {
            transition: background 0.15s;
        }
        .resource-item:hover {
            background: var(--panel-bg-secondary);
        }
        .resource-item.selected {
            background: rgba(74, 108, 247, 0.08);
        }
        .resource-item input[type="checkbox"] {
            margin-right: 8px;
            cursor: pointer;
        }
        .property-row {
            display: flex;
            gap: 10px;
        }
        .property-row>* {
            flex: 1;
        }
        .empty-panel {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 180px;
            color: var(--text-muted);
            text-align: center;
            padding: 20px;
        }
        .empty-panel .icon {
            font-size: 32px;
            margin-bottom: 10px;
            opacity: 0.4;
        }
        .empty-panel p {
            font-size: 13px;
        }

        /* ===== ????????===== */
        .var-select-wrapper {
            position: relative;
        }
        .var-select-wrapper select {
            width: 100%;
            padding: 6px 10px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-family: inherit;
            color: var(--text);
            background: var(--panel-bg-secondary);
            transition: var(--transition);
            appearance: auto;
            cursor: pointer;
        }
        .var-select-wrapper select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.08);
            background: var(--panel-bg);
        }
        .var-select-wrapper .var-preview {
            display: inline-block;
            margin-top: 4px;
            font-size: 10px;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 8px;
            border-radius: 12px;
            font-family: 'Consolas', monospace;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: var(--transition);
        }
        .var-select-wrapper .var-preview:hover {
            background: var(--primary);
            color: #fff;
        }
        .var-tag-select {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            border: 1px solid var(--primary);
            font-family: 'Consolas', monospace;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 2px;
        }
        .var-tag-select:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== ??????===== */
        .execution-bar {
            height: 44px;
            background: var(--panel-bg);
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            padding: 0 14px;
            gap: 10px;
            flex-shrink: 0;
        }
        .execution-bar button {
            padding: 5px 14px;
            border: 1px solid var(--border);
            background: var(--panel-bg);
            border-radius: var(--radius-sm);
            cursor: pointer;
            font-size: 12px;
            color: var(--text-secondary);
            transition: var(--transition);
            font-family: inherit;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            height: 30px;
        }
        .execution-bar button:hover {
            background: var(--panel-bg-secondary);
            border-color: #c8ced9;
        }
        .execution-bar button.success {
            background: var(--success);
            color: #fff;
            border-color: var(--success);
        }
        .execution-bar button.success:hover {
            background: #2db84e;
        }
        .execution-bar button.danger {
            color: var(--danger);
            border-color: #ffcdca;
        }
        .execution-bar button.danger:hover {
            background: var(--danger-light);
        }
        .execution-bar button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            pointer-events: none;
        }
        .execution-status {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-secondary);
        }
        .status-indicator {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--text-muted);
            flex-shrink: 0;
            transition: background 0.3s;
        }
        .status-indicator.ready {
            background: var(--text-muted);
        }
        .status-indicator.running {
            background: var(--warning);
            animation: blink 1s ease infinite;
        }
        .status-indicator.completed {
            background: var(--success);
        }
        .status-indicator.error {
            background: var(--danger);
        }
        @keyframes blink {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }
        .execution-info {
            font-size: 11px;
            color: var(--text-muted);
            margin-left: auto;
            white-space: nowrap;
        }

        /* ===== Toast ===== */
        .toast {
            position: fixed;
            top: 68px;
            left: 50%;
            transform: translateX(-50%) translateY(-12px);
            background: #1d2129;
            color: #fff;
            padding: 10px 24px;
            border-radius: 24px;
            font-size: 13px;
            z-index: 9999;
            pointer-events: none;
            opacity: 0;
            transition: opacity 0.3s ease, transform 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
        }
        .toast.show {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }
        .toast.success {
            background: linear-gradient(135deg, #28a745, #34c759);
        }
        .toast.warning {
            background: linear-gradient(135deg, #e68a00, #ff9500);
        }
        .toast.error {
            background: linear-gradient(135deg, #dc3545, #ff3b30);
        }
        .toast.info {
            background: linear-gradient(135deg, #3a5cd9, #4a6cf7);
        }

        /* ===== ??? ===== */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.45);
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 9000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s ease;
        }
        .modal-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .modal {
            background: var(--panel-bg);
            border-radius: 16px;
            padding: 24px 28px;
            width: 92%;
            max-width: 520px;
            transform: scale(0.92) translateY(16px);
            transition: all 0.3s ease;
            box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
            max-height: 90vh;
            display: flex;
            flex-direction: column;
        }
        .modal-overlay.active .modal {
            transform: scale(1) translateY(0);
        }
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .modal-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .modal-close {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--panel-bg-secondary);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 14px;
        }
        .modal-close:hover {
            background: var(--danger-light);
            color: var(--danger);
        }
        .modal-body {
            overflow-y: auto;
            flex: 1;
            padding: 0 2px;
        }
        .modal-footer {
            display: flex;
            gap: 10px;
            justify-content: flex-end;
            margin-top: 18px;
            flex-shrink: 0;
        }
        .modal-footer button {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border);
            background: var(--panel-bg);
            color: var(--text-secondary);
        }
        .modal-footer button:hover {
            background: var(--panel-bg-secondary);
        }
        .modal-footer button.btn-primary {
            background: var(--primary-gradient);
            color: #fff;
            border-color: var(--primary);
        }
        .modal-footer button.btn-primary:hover {
            box-shadow: 0 4px 14px rgba(74, 108, 247, 0.3);
        }
        .modal-footer button.btn-danger {
            background: var(--danger);
            color: #fff;
            border-color: var(--danger);
        }
        .modal-footer button.btn-danger:hover {
            background: #e0352b;
        }

        /* ===== AI ???? ===== */
        .ai-model-card {
            background: var(--panel-bg-secondary);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            margin-bottom: 8px;
            transition: var(--transition);
        }
        .ai-model-card:hover {
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(74, 108, 247, 0.06);
        }
        .ai-model-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 4px;
        }
        .ai-model-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .ai-model-provider {
            font-size: 9px;
            padding: 1px 8px;
            border-radius: 10px;
            font-weight: 600;
            text-transform: uppercase;
        }
        .ai-model-provider.openai {
            background: #e6f4ff;
            color: #0ea5e9;
        }
        .ai-model-provider.anthropic {
            background: #fff0e6;
            color: #d97706;
        }
        .ai-model-provider.google {
            background: #e6f9ed;
            color: #16a34a;
        }
        .ai-model-provider.baidu {
            background: #eae8ff;
            color: #4f46e5;
        }
        .ai-model-provider.alibaba {
            background: #fce8f2;
            color: #db2777;
        }
        .ai-model-provider.custom {
            background: var(--border);
            color: var(--text-muted);
        }
        .ai-model-info {
            font-size: 11px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 2px 0 6px;
        }
        .ai-model-info .row {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .ai-model-info .row span:first-child {
            color: var(--text-muted);
            min-width: 56px;
        }
        .ai-model-actions {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            margin-top: 4px;
        }
        .ai-model-actions button {
            padding: 3px 10px;
            font-size: 11px;
            border-radius: 4px;
            border: 1px solid var(--border);
            background: var(--panel-bg);
            cursor: pointer;
            transition: var(--transition);
            color: var(--text-secondary);
            font-family: inherit;
        }
        .ai-model-actions button:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .ai-model-actions button.danger:hover {
            background: var(--danger-light);
            border-color: var(--danger);
            color: var(--danger);
        }

        /* ===== ?????????? ===== */
        .smart-preview {
            animation: smartPreviewIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
        }
        @keyframes smartPreviewIn {
            from {
                opacity: 0;
                transform: scale(0.92) translateY(8px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }
        .smart-preview .preview-confirm-btn:hover {
            background: #db2777 !important;
        }
        .smart-preview::-webkit-scrollbar {
            width: 4px;
        }
        .smart-preview::-webkit-scrollbar-track {
            background: transparent;
        }
        .smart-preview::-webkit-scrollbar-thumb {
            background: #ec4899;
            border-radius: 4px;
        }

        /* ===== ?? ===== */
        .log-entry {
            display: flex;
            align-items: baseline;
            padding: 6px 10px;
            margin-bottom: 4px;
            background: var(--panel-bg-secondary);
            border-left: 3px solid var(--primary);
            border-radius: 4px;
            font-size: 12px;
            line-height: 1.5;
        }
        .log-entry.success {
            border-left-color: var(--success);
        }
        .log-entry.warning {
            border-left-color: var(--warning);
        }
        .log-entry.error {
            border-left-color: var(--danger);
            background: rgba(255, 59, 48, 0.06);
        }
        .log-entry.error .log-msg {
            color: var(--danger);
            font-weight: 500;
        }
        .log-entry.error .log-icon {
            color: var(--danger);
        }
        .log-entry {
            display: flex;
            align-items: baseline;
        }
        .log-entry .log-icon {
            color: var(--text-muted);
            margin-right: 4px;
            flex-shrink: 0;
        }
        .log-entry .log-time {
            color: var(--text-muted);
            font-size: 10px;
            margin-right: 8px;
            flex-shrink: 0;
        }
        .log-entry .log-msg {
            color: var(--text);
            word-break: break-all;
            flex: 1;
        }
        /* orphaned */

        /* ===== ?????? ===== */
        .upstream-var-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 4px;
        }
        .upstream-var-item {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 2px 10px 2px 8px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            border: 1px solid var(--primary);
            font-family: 'Consolas', monospace;
            cursor: pointer;
            transition: var(--transition);
        }
        .upstream-var-item:hover {
            background: var(--primary);
            color: #fff;
        }
        .upstream-var-item .var-from {
            font-weight: 400;
            opacity: 0.7;
            font-size: 9px;
            text-transform: uppercase;
        }

        /* ===== ????===== */
        @media (max-width: 1024px) {
            .right-panel {
                position: absolute;
                right: 0;
                top: 0;
                bottom: 0;
                box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
                width: 280px;
                min-width: 280px;
            }
        }
        @media (max-width: 768px) {
            .side-panel {
                width: 140px;
                min-width: 140px;
            }
            .toolbar .hint {
                display: none;
            }
            .toolbar button {
                padding: 4px 8px;
                font-size: 11px;
            }
            .right-panel {
                width: 240px;
                min-width: 240px;
            }
            .modal {
                padding: 18px 20px;
                max-width: 94%;
            }
        }
        @media (max-width: 480px) {
            .side-panel {
                width: 110px;
                min-width: 110px;
            }
            .node-template {
                font-size: 10px;
                padding: 5px 8px;
            }
            .node-template .icon-dot {
                width: 20px;
                height: 20px;
                font-size: 9px;
            }
            .toolbar .logo span {
                display: none;
            }
            .right-panel {
                width: 200px;
                min-width: 200px;
            }
        }
        /* ?????? */
        .clock-display {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            text-align: center;
            padding: 6px 0;
            font-family: monospace;
            letter-spacing: 1px;
        }
        .countdown-display {
            font-size: 18px;
            font-weight: 700;
            color: var(--warning);
            text-align: center;
            padding: 4px 0;
            font-family: monospace;
        }
        .timer-info {
            background: var(--panel-bg-secondary);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            margin-top: 6px;
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .timer-info .label {
            color: var(--text-muted);
        }

        /* ===== ?????? ===== */
        .settings-nav {
            display: flex;
            gap: 4px;
            margin-bottom: 16px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 8px;
        }
        .settings-nav-btn {
            padding: 8px 16px;
            border: none;
            background: transparent;
            cursor: pointer;
            font-size: 13px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            font-family: inherit;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .settings-nav-btn:hover {
            background: var(--panel-bg-secondary);
            color: var(--text);
        }
        .settings-nav-btn.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 500;
        }
        .settings-section {
            margin-bottom: 20px;
            padding: 16px;
            background: var(--panel-bg-secondary);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
        }
        .settings-section-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ===== ??????===== */
        .kb-toolbar {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
        }
        .kb-categories {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
        }
        .category-tab {
            padding: 4px 12px;
            border: 1px solid var(--border);
            background: var(--panel-bg);
            border-radius: 16px;
            cursor: pointer;
            font-size: 12px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .category-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .category-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .kb-list {
            max-height: 400px;
            overflow-y: auto;
        }
        .kb-item {
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .kb-item:hover {
            border-color: var(--primary);
            background: var(--primary-light);
        }
        .kb-item-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 6px;
        }
        .kb-item-icon {
            width: 28px;
            height: 28px;
            background: var(--purple-light);
            color: var(--purple);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
        }
        .kb-item-title {
            flex: 1;
            font-size: 13px;
        }
        .kb-item-category {
            font-size: 10px;
            padding: 2px 8px;
            background: var(--panel-bg-secondary);
            border-radius: 10px;
            color: var(--text-muted);
        }
        .kb-item-desc {
            font-size: 12px;
            color: var(--text-secondary);
            margin-bottom: 6px;
        }
        .kb-item-meta {
            font-size: 11px;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
        }
        .kb-item-meta .tag {
            padding: 1px 6px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 3px;
            margin-right: 4px;
        }
        .kb-item-actions {
            margin-top: 8px;
            display: flex;
            gap: 6px;
        }

        /* ===== ????????===== */
        .file-stats {
            display: flex;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .file-breadcrumb {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb-item {
            padding: 4px 8px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 12px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .breadcrumb-item:hover {
            background: var(--panel-bg-secondary);
            color: var(--primary);
        }
        .breadcrumb-item.active {
            color: var(--text);
            font-weight: 500;
        }
        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 10px;
        }
        .file-toolbar {
            display: flex;
            gap: 8px;
            margin-bottom: 12px;
        }
        .file-sections {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .file-section-title {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            margin: 0 0 8px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .file-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .file-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .file-item:hover {
            border-color: var(--primary);
            background: var(--primary-light);
        }
        .file-item.folder {
            cursor: pointer;
        }
        .file-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            background: var(--panel-bg-secondary);
        }
        .file-info {
            flex: 1;
            min-width: 0;
        }
        .file-name {
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .file-meta {
            font-size: 11px;
            color: var(--text-muted);
        }
        .file-actions {
            display: flex;
            gap: 4px;
        }
        .empty-state {
            text-align: center;
            padding: 20px;
            color: var(--text-muted);
            font-size: 13px;
        }

        /* ===== ???? ===== */
        .btn-sm {
            padding: 4px 10px;
            border: 1px solid var(--border);
            background: var(--panel-bg);
            border-radius: 4px;
            cursor: pointer;
            font-size: 11px;
            color: var(--text-secondary);
            transition: var(--transition);
            font-family: inherit;
        }
        .btn-sm:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-sm.danger {
            color: var(--danger);
            border-color: #ffcdca;
        }
        .btn-sm.danger:hover {
            background: var(--danger-light);
        }
        .btn-icon {
            width: 28px;
            height: 28px;
            border: 1px solid var(--border);
            background: var(--panel-bg);
            border-radius: 4px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .btn-icon:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-icon.danger:hover {
            background: var(--danger-light);
            border-color: var(--danger);
            color: var(--danger);
        }

        /* ===== toolbar???? ===== */
        .toolbar-btn-primary {
            background: var(--primary-gradient) !important;
            color: #fff !important;
            border-color: var(--primary) !important;
        }
        .toolbar-btn-primary:hover {
            box-shadow: 0 4px 14px rgba(74, 108, 247, 0.35) !important;
        }
        .log-toggle-btn {
            position: relative;
        }
        .log-badge {
            display: inline-block;
            min-width: 16px;
            height: 16px;
            line-height: 16px;
            text-align: center;
            background: #ef4444;
            color: #fff;
            border-radius: 8px;
            font-size: 10px;
            font-weight: 700;
            padding: 0 4px;
            vertical-align: middle;
        }
        .log-toggle-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== ???????? ===== */
        #liveLogPanel {
            position: fixed;
            top: 60px;
            right: 16px;
            width: 480px;
            max-height: calc(100vh - 80px);
            background: var(--panel-bg, #1e1e2e);
            border: 1px solid var(--border, #333);
            border-radius: 12px;
            box-shadow: 0 8px 40px rgba(0,0,0,0.4);
            z-index: 9999;
            display: none;
            flex-direction: column;
            overflow: hidden;
        }
        #liveLogPanel.open {
            display: flex;
        }
        .live-log-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            border-bottom: 1px solid var(--border, #333);
            background: var(--panel-bg-secondary, #252535);
            flex-shrink: 0;
        }
        .live-log-header-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--text, #ccc);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .live-log-status {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #555;
            flex-shrink: 0;
        }
        .live-log-status.running { background: #22c55e; animation: pulse-green 1s infinite; }
        .live-log-status.error { background: #ef4444; }
        .live-log-status.done { background: #3b82f6; }
        @keyframes pulse-green {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .live-log-close {
            background: none;
            border: none;
            color: var(--text-muted, #888);
            cursor: pointer;
            font-size: 16px;
            padding: 4px;
            line-height: 1;
            border-radius: 4px;
        }
        .live-log-close:hover { color: var(--text, #ccc); background: var(--panel-bg); }
        .live-log-body {
            flex: 1;
            overflow-y: auto;
            padding: 8px;
            min-height: 120px;
            max-height: 500px;
        }
        .live-log-entry {
            display: flex;
            gap: 8px;
            padding: 5px 8px;
            border-radius: 6px;
            font-size: 12px;
            line-height: 1.5;
            margin-bottom: 2px;
            transition: background 0.15s;
        }
        .live-log-entry:hover { background: var(--panel-bg-secondary, #252535); }
        .live-log-entry.info { color: var(--text-secondary, #aaa); }
        .live-log-entry.success { color: #22c55e; }
        .live-log-entry.error { color: #ef4444; background: rgba(239,68,68,0.08); }
        .live-log-entry.warning { color: #f59e0b; }
        .live-log-time {
            color: var(--text-muted, #666);
            font-size: 11px;
            flex-shrink: 0;
            padding-top: 1px;
            font-family: monospace;
        }
        .live-log-icon { flex-shrink: 0; width: 14px; text-align: center; }
        .live-log-msg { flex: 1; word-break: break-all; }
        .live-log-empty {
            text-align: center;
            color: var(--text-muted, #666);
            padding: 40px 0;
            font-size: 13px;
        }
        .live-log-footer {
            padding: 8px 14px;
            border-top: 1px solid var(--border, #333);
            display: flex;
            gap: 8px;
            flex-shrink: 0;
            background: var(--panel-bg-secondary, #252535);
        }
        .live-log-footer button {
            flex: 1;
            padding: 6px;
            border: 1px solid var(--border, #333);
            border-radius: 6px;
            background: var(--panel-bg, #1e1e2e);
            color: var(--text-secondary, #aaa);
            font-size: 12px;
            cursor: pointer;
        }
        .live-log-footer button:hover { background: var(--panel-bg-secondary, #252535); color: var(--text, #ccc); }

        /* ===== AI???? ===== */
        .ai-model-card {
            background: var(--panel-bg-secondary);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            margin-bottom: 8px;
            transition: var(--transition);
        }
        .ai-model-card:hover {
            border-color: var(--primary);
            box-shadow: 0 2px 8px rgba(74, 108, 247, 0.06);
        }
        .ai-model-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 4px;
        }
        .ai-model-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .ai-model-provider {
            font-size: 9px;
            padding: 1px 8px;
            border-radius: 10px;
            font-weight: 600;
            text-transform: uppercase;
        }
        .ai-model-provider.openai {
            background: #e6f4ff;
            color: #0ea5e9;
        }
        .ai-model-provider.anthropic {
            background: #fff0e6;
            color: #d97706;
        }
        .ai-model-provider.google {
            background: #e6f9ed;
            color: #16a34a;
        }
        .ai-model-provider.baidu {
            background: #eae8ff;
            color: #4f46e5;
        }
        .ai-model-provider.alibaba {
            background: #fce8f2;
            color: #db2777;
        }
        .ai-model-provider.custom {
            background: var(--border);
            color: var(--text-muted);
        }
        .ai-model-info {
            font-size: 11px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 2px 0 6px;
        }
        .ai-model-info .row {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .ai-model-info .row span:first-child {
            color: var(--text-muted);
            min-width: 56px;
        }
        .ai-model-actions {
            display: flex;
            gap: 4px;
            flex-wrap: wrap;
            margin-top: 4px;
        }
        .ai-model-actions button {
            padding: 3px 10px;
            font-size: 11px;
            border-radius: 4px;
            border: 1px solid var(--border);
            background: var(--panel-bg);
            cursor: pointer;
            transition: var(--transition);
            color: var(--text-secondary);
            font-family: inherit;
        }
        .ai-model-actions button:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }
        .ai-model-actions button.danger:hover {
            background: var(--danger-light);
            border-color: var(--danger);
            color: var(--danger);
        }

        /* ===== ?????????? ===== */
        .smart-preview {
            animation: smartPreviewIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
        }
        @keyframes smartPreviewIn {
            from {
                opacity: 0;
                transform: scale(0.92) translateY(8px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }
        .smart-preview .preview-confirm-btn:hover {
            background: #db2777 !important;
        }
        .smart-preview::-webkit-scrollbar {
            width: 4px;
        }
        .smart-preview::-webkit-scrollbar-track {
            background: transparent;
        }
        .smart-preview::-webkit-scrollbar-thumb {
            background: #ec4899;
            border-radius: 4px;
        }

/* ===== ?????????? ===== */
@keyframes notifPopupAnim {
    from { opacity: 0; transform: scale(0.85) translateY(-20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes resultPopupAnim {
    from { opacity: 0; transform: scale(0.9) translateY(-30px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}


/* ===== ??????????? ===== */
.settings-modal {
    position: relative;
    background: var(--panel-bg);
    border-radius: 16px;
    width: 900px;
    max-width: 95vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    animation: settingsModalIn 0.25s ease;
}

@keyframes settingsModalIn {
    from { opacity: 0; transform: scale(0.95) translateY(-20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.settings-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--primary) 0%, #6d8cff 100%);
    color: #fff;
}

.settings-modal-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
}

.settings-modal-title i {
    font-size: 22px;
}

.settings-modal-header .modal-close {
    background: rgba(255,255,255,0.2);
    border: none;
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.settings-modal-header .modal-close:hover {
    background: rgba(255,255,255,0.3);
}

.settings-modal-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 500px;
}

/* ????? */
.settings-sidebar {
    width: 240px;
    min-width: 240px;
    background: var(--panel-bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.settings-sidebar-user {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 14px;
}

.settings-user-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 26px;
    flex-shrink: 0;
}

.settings-user-info {
    flex: 1;
    min-width: 0;
}

.settings-user-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.settings-user-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ???? */
.settings-nav {
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.settings-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.settings-nav-item i {
    width: 20px;
    text-align: center;
    font-size: 15px;
}

.settings-nav-item:hover {
    background: var(--panel-bg);
    color: var(--text);
}

.settings-nav-item.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
}

.settings-nav-item.active i {
    color: var(--primary);
}

/* ?????? */
.settings-content {
    flex: 1;
    overflow-y: auto;
    padding: 28px 32px;
    background: var(--panel-bg);
    min-height: 400px;
    display: flex;
    flex-direction: column;
}

.settings-tab-content {
    display: none;
    animation: fadeIn 0.2s ease;
}

.settings-tab-content.active {
    display: flex;
    flex-direction: column;
    flex: 1;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.settings-tab-header {
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.settings-tab-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
}

.settings-tab-header h3 i {
    color: var(--primary);
}

.settings-tab-header p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ?????? */
.settings-card {
    background: var(--panel-bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.settings-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.settings-card-title i {
    color: var(--primary);
}

/* ?????? */
.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.settings-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.settings-row:first-child {
    padding-top: 0;
}

.settings-row-label {
    flex: 1;
}

.settings-row-label-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 3px;
}

.settings-row-label-desc {
    font-size: 12px;
    color: var(--text-muted);
}

.settings-row-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ??????? */
.settings-toggle {
    position: relative;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.settings-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.settings-toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.3s;
    border-radius: 24px;
}

.settings-toggle-slider:before {
    position: absolute;
    content: '';
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.settings-toggle input:checked + .settings-toggle-slider {
    background-color: var(--primary);
}

.settings-toggle input:checked + .settings-toggle-slider:before {
    transform: translateX(20px);
}

/* ?????????? */
.settings-input {
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--panel-bg);
    color: var(--text);
    transition: var(--transition);
    min-width: 200px;
}

.settings-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74,108,247,0.1);
}

.settings-select {
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--panel-bg);
    color: var(--text);
    transition: var(--transition);
    cursor: pointer;
    min-width: 160px;
}

.settings-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74,108,247,0.1);
}

/* ??????? */
.settings-info-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--panel-bg);
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.settings-info-row i {
    color: var(--text-muted);
    width: 16px;
}

.settings-info-row span {
    color: var(--text);
    font-weight: 500;
}

/* ????? */
.settings-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.settings-stat-card {
    background: var(--panel-bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: var(--transition);
}

.settings-stat-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.settings-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.settings-stat-label {
    font-size: 12px;
    color: var(--text-muted);
}

/* ????????? */
.settings-color-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.settings-color-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.settings-color-btn:hover {
    transform: scale(1.1);
}

.settings-color-btn.active {
    border-color: var(--text);
}

/* ====================================================================== */
/* 弹窗与按钮全局美化（统一风格，圆角渐变，hover 微动效）                  */
/* ====================================================================== */

/* 全局按钮基础（兼容现有 .btn-primary/.btn-secondary 自由组合使用） */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel-bg);
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    line-height: 1.2;
    font-family: inherit;
}
.btn:hover { background: var(--panel-bg-secondary); border-color: var(--text-muted); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

/* 主要按钮 - 渐变蓝色 */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: var(--primary-gradient);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    line-height: 1.2;
    font-family: inherit;
    box-shadow: 0 2px 8px rgba(74, 108, 247, 0.22);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #3a5cd9 0%, #4a6cf7 100%);
    box-shadow: 0 4px 16px rgba(74, 108, 247, 0.35);
    transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(74, 108, 247, 0.20); }

/* 次要按钮 */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel-bg-secondary);
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    line-height: 1.2;
    font-family: inherit;
}
.btn-secondary:hover {
    background: var(--border);
    color: var(--text);
    border-color: var(--primary);
}
.btn-secondary:active { transform: translateY(1px); }

/* 危险按钮 */
.btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: linear-gradient(135deg, #ff6b6b 0%, var(--danger) 100%);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    line-height: 1.2;
    font-family: inherit;
    box-shadow: 0 2px 8px rgba(255, 59, 48, 0.22);
}
.btn-danger:hover {
    box-shadow: 0 4px 16px rgba(255, 59, 48, 0.35);
    transform: translateY(-1px);
}
.btn-danger:active { transform: translateY(0); }

/* 成功按钮 */
.btn-success {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid transparent;
    background: linear-gradient(135deg, #34c759 0%, #2aa84a 100%);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    line-height: 1.2;
    font-family: inherit;
    box-shadow: 0 2px 8px rgba(52, 199, 89, 0.22);
}
.btn-success:hover {
    box-shadow: 0 4px 16px rgba(52, 199, 89, 0.35);
    transform: translateY(-1px);
}
.btn-success:active { transform: translateY(0); }

/* 小尺寸按钮 */
.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: 6px; }

/* 仅图标按钮（圆形） */
.btn-icon {
    width: 30px;
    height: 30px;
    padding: 0;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* 弹窗整体美化 */
.modal-overlay {
    z-index: 9000;
    backdrop-filter: blur(6px);
    background: rgba(15, 23, 42, 0.42);
}
.modal {
    border-radius: 14px;
    padding: 22px 26px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.22), 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border);
}

/* 弹窗头部：图标标题+关闭按钮 */
.modal-header {
    padding-bottom: 14px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.modal-title {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.2px;
}
.modal-title i {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--primary-light);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
}
.modal-close {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: transparent;
    color: var(--text-muted);
    transition: var(--transition);
}
.modal-close:hover {
    background: var(--danger-light);
    color: var(--danger);
}

/* 弹窗底部按钮区 */
.modal-footer {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    gap: 10px;
}
.modal-footer button {
    padding: 8px 18px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--panel-bg);
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}
.modal-footer button:hover { background: var(--panel-bg-secondary); }
.modal-footer button.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(74, 108, 247, 0.22);
}
.modal-footer button.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(74, 108, 247, 0.35);
    transform: translateY(-1px);
}
.modal-footer button.btn-danger {
    background: linear-gradient(135deg, #ff6b6b 0%, var(--danger) 100%);
    color: #fff;
    border-color: transparent;
}
.modal-footer button.btn-danger:hover {
    box-shadow: 0 4px 16px rgba(255, 59, 48, 0.35);
    transform: translateY(-1px);
}

/* 弹窗中的弹窗：覆盖 z-index 让嵌套层级清晰 */
#aiModelModalOverlay.modal-overlay {
    z-index: 9500;
}
#aiNodeLibraryModal.modal-overlay {
    z-index: 9600;
}
#knowledgeModal.modal-overlay {
    z-index: 9700;
}
#fileManagerModal.modal-overlay {
    z-index: 9700;
}
.modal-overlay.nested-modal {
    z-index: 9900;
}

/* 设置中心弹窗：高度自适应最大 tab */
#userSettingsModal .settings-modal {
    width: 920px;
    max-width: 95vw;
    max-height: 88vh;
}
#userSettingsModal .settings-modal-body {
    min-height: 520px;
    transition: min-height 0.25s ease;
}
#userSettingsModal .settings-modal-header {
    background: linear-gradient(135deg, #4a6cf7 0%, #6d8cff 100%);
    box-shadow: 0 4px 14px rgba(74, 108, 247, 0.25);
}
#userSettingsModal .settings-modal-header .modal-close {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    border-radius: 8px;
    width: 32px;
    height: 32px;
}
#userSettingsModal .settings-modal-header .modal-close:hover {
    background: rgba(255, 255, 255, 0.32);
    transform: rotate(90deg);
}
#userSettingsModal .settings-modal-title {
    font-size: 17px;
    letter-spacing: 0.3px;
}
#userSettingsModal .settings-modal-title i {
    font-size: 20px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.15));
}

/* 设置侧边导航：图标徽章化 */
#userSettingsModal .settings-nav-item {
    border-radius: 10px;
    transition: var(--transition);
    position: relative;
}
#userSettingsModal .settings-nav-item i {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: var(--panel-bg);
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: var(--transition);
}
#userSettingsModal .settings-nav-item:hover i {
    background: var(--primary-light);
    color: var(--primary);
}
#userSettingsModal .settings-nav-item.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}
#userSettingsModal .settings-nav-item.active i {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 2px 6px rgba(74, 108, 247, 0.3);
}
#userSettingsModal .settings-nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    bottom: 12px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--primary);
}

/* 设置卡片：更精致的边框+阴影 */
#userSettingsModal .settings-card {
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px 22px;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
    transition: var(--transition);
}
#userSettingsModal .settings-card:hover {
    border-color: var(--primary-light);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
}
#userSettingsModal .settings-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    padding-bottom: 12px;
    margin-bottom: 14px;
    border-bottom: 1px dashed var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}
#userSettingsModal .settings-card-title i {
    width: 26px;
    height: 26px;
    border-radius: 7px;
    background: var(--primary-light);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

/* 设置项 row：紧凑对齐 */
#userSettingsModal .settings-row {
    padding: 12px 0;
    gap: 16px;
}
#userSettingsModal .settings-row-label-title {
    font-size: 13px;
}

/* 设置 tab 头部 */
#userSettingsModal .settings-tab-header h3 {
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}
#userSettingsModal .settings-tab-header h3 i {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: var(--primary-gradient);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    box-shadow: 0 2px 6px rgba(74, 108, 247, 0.3);
}

/* 设置输入控件统一风格 */
.settings-input,
.settings-select,
#userSettingsModal input[type="text"],
#userSettingsModal input[type="email"],
#userSettingsModal input[type="number"],
#userSettingsModal input[type="password"],
#userSettingsModal select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--panel-bg);
    color: var(--text);
    font-size: 13px;
    transition: var(--transition);
    font-family: inherit;
}
.settings-input:focus,
.settings-select:focus,
#userSettingsModal input:focus,
#userSettingsModal select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.12);
}

/* 设置区底部按钮组 */
#userSettingsModal .btn-primary {
    box-shadow: 0 2px 8px rgba(74, 108, 247, 0.22);
}
#userSettingsModal .btn-primary:hover {
    box-shadow: 0 4px 16px rgba(74, 108, 247, 0.35);
    transform: translateY(-1px);
}
#userSettingsModal .btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* 嵌套弹窗中的弹窗：更高的 z-index + 略带缩放视觉 */
#aiModelModalOverlay .modal,
#aiNodeLibraryModal .modal,
#knowledgeModal .modal,
#fileManagerModal .modal {
    border-radius: 14px;
    box-shadow: 0 30px 100px rgba(0, 0, 0, 0.28), 0 6px 20px rgba(0, 0, 0, 0.1);
}
#aiModelModalOverlay .modal-title i,
#aiNodeLibraryModal .modal-title i,
#knowledgeModal .modal-title i,
#fileManagerModal .modal-title i {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: var(--primary-gradient);
    color: #fff;
    font-size: 13px;
}

/* 通用：所有 i 图标的视觉一致性 */
.modal-title i,
.settings-card-title i,
.settings-nav-item i {
    transition: var(--transition);
}

/* ====================================================================== */
/* 通知弹窗美化（notif-fallback-overlay 与 exec-result-overlay）            */
/* 注：这些样式只针对 .notif-popup / .exec-result-popup，                   */
/*     不会影响 .smart-preview（智能创建弹窗）                              */
/* ====================================================================== */

.notif-popup,
.exec-result-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99999;
    background: rgba(15, 23, 42, 0.42);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: notifPopupFadeIn 0.25s ease;
}
@keyframes notifPopupFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.notif-popup-card {
    background: var(--panel-bg);
    border-radius: 14px;
    width: 92%;
    max-width: 440px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28), 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border);
    animation: notifPopupScaleIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-family: inherit;
}
@keyframes notifPopupScaleIn {
    from { opacity: 0; transform: scale(0.92) translateY(16px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

/* 头部：彩色渐变 + 大图标徽章 */
.notif-popup-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 22px 24px 18px;
    color: #fff;
    position: relative;
}
.notif-popup-header.success {
    background: linear-gradient(135deg, #34c759 0%, #2aa84a 100%);
    box-shadow: 0 4px 14px rgba(52, 199, 89, 0.25);
}
.notif-popup-header.error {
    background: linear-gradient(135deg, #ff6b6b 0%, var(--danger) 100%);
    box-shadow: 0 4px 14px rgba(255, 59, 48, 0.25);
}
.notif-popup-header.warning {
    background: linear-gradient(135deg, #ffb84d 0%, var(--warning) 100%);
    box-shadow: 0 4px 14px rgba(255, 149, 0, 0.25);
}
.notif-popup-header.info {
    background: linear-gradient(135deg, #4a6cf7 0%, #6d8cff 100%);
    box-shadow: 0 4px 14px rgba(74, 108, 247, 0.25);
}
.notif-popup-header .notif-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.22);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    font-weight: 700;
    backdrop-filter: blur(4px);
}
.notif-popup-header .notif-title {
    flex: 1;
    min-width: 0;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.notif-popup-header .notif-close {
    background: rgba(255, 255, 255, 0.18);
    border: none;
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}
.notif-popup-header .notif-close:hover {
    background: rgba(255, 255, 255, 0.32);
    transform: rotate(90deg);
}

/* 正文 */
.notif-popup-body {
    padding: 20px 24px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.65;
    word-break: break-word;
    max-height: 60vh;
    overflow-y: auto;
}

/* 底部 */
.notif-popup-footer {
    padding: 14px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    background: var(--panel-bg-secondary);
}

/* 进度条（自动关闭） */
.notif-popup-progress {
    height: 3px;
    background: linear-gradient(90deg, transparent, rgba(74, 108, 247, 0.5), transparent);
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    animation: notifProgress 10s linear forwards;
}
@keyframes notifProgress {
    from { transform: translateX(-100%); }
    to { transform: translateX(100%); }
}

/* 确认型弹窗（替换原生 confirm） */
.confirm-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100000;
    background: rgba(15, 23, 42, 0.42);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: notifPopupFadeIn 0.2s ease;
}
.confirm-popup-card {
    background: var(--panel-bg);
    border-radius: 14px;
    width: 92%;
    max-width: 420px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28), 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border);
    animation: notifPopupScaleIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    font-family: inherit;
}
.confirm-popup-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 22px 24px 18px;
    color: #fff;
    background: linear-gradient(135deg, #4a6cf7 0%, #6d8cff 100%);
    box-shadow: 0 4px 14px rgba(74, 108, 247, 0.25);
}
.confirm-popup-header.danger {
    background: linear-gradient(135deg, #ff6b6b 0%, var(--danger) 100%);
    box-shadow: 0 4px 14px rgba(255, 59, 48, 0.25);
}
.confirm-popup-header.warning {
    background: linear-gradient(135deg, #ffb84d 0%, var(--warning) 100%);
    box-shadow: 0 4px 14px rgba(255, 149, 0, 0.25);
}
.confirm-popup-header .confirm-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.22);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    backdrop-filter: blur(4px);
}
.confirm-popup-header .confirm-title {
    flex: 1;
    min-width: 0;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.confirm-popup-body {
    padding: 22px 24px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.65;
    word-break: break-word;
}
.confirm-popup-footer {
    padding: 14px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    background: var(--panel-bg-secondary);
}