:root{--bg-main: #f5f7fa;--bg-card: #ffffff;--header-bg: #1e2a3b;--text-primary: #1a1a2e;--text-secondary: #64748b;--text-muted: #94a3b8;--accent: #0ea5e9;--accent-hover: #0284c7;--accent-light: rgba(14, 165, 233, .1);--success: #22c55e;--success-light: rgba(34, 197, 94, .1);--warning: #f59e0b;--warning-light: rgba(245, 158, 11, .1);--error: #ef4444;--error-light: rgba(239, 68, 68, .1);--border: #e2e8f0;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;font-family:Inter,system-ui,-apple-system,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}.app-layout{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;padding:32px;max-width:1400px;margin:0 auto;width:100%}.header{background:var(--header-bg);color:#fff;padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.header-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem}.header-logo svg{width:28px;height:28px}.header-right{display:flex;align-items:center;gap:16px}.header-avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.85rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.card-title{font-size:1rem;font-weight:600;color:var(--text-primary);display:flex;align-items:center;gap:8px}.card-body{padding:20px}.btn{padding:10px 20px;border-radius:var(--radius-md);font-weight:600;font-size:.9rem;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:8px;border:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background:#fff;color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-main);border-color:var(--text-muted)}.badge{padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600;display:inline-flex;align-items:center;gap:4px}.badge-success{background:var(--success-light);color:var(--success);border:1px solid rgba(34,197,94,.2)}.badge-warning{background:var(--warning-light);color:var(--warning);border:1px solid rgba(245,158,11,.2)}.badge-error{background:var(--error-light);color:var(--error);border:1px solid rgba(239,68,68,.2)}.badge-info{background:var(--accent-light);color:var(--accent);border:1px solid rgba(14,165,233,.2)}.upload-area{border:2px dashed var(--border);border-radius:var(--radius-lg);padding:48px;text-align:center;transition:all .2s ease;background:var(--bg-card)}.upload-area:hover{border-color:var(--accent);background:#0ea5e905}.upload-icon{width:64px;height:64px;margin:0 auto 16px;color:var(--text-muted)}.alert{padding:12px 16px;border-radius:var(--radius-md);border-left:4px solid;display:flex;align-items:flex-start;gap:12px}.alert-error{background:var(--error-light);border-left-color:var(--error);color:var(--error)}.alert-warning{background:var(--warning-light);border-left-color:var(--warning);color:var(--warning)}.alert-info{background:var(--accent-light);border-left-color:var(--accent);color:var(--accent)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .3s ease-out forwards}.status-dot{width:8px;height:8px;border-radius:50%}.status-dot.success{background:var(--success);box-shadow:0 0 8px var(--success)}.status-dot.warning{background:var(--warning);box-shadow:0 0 8px var(--warning)}.status-dot.error{background:var(--error);box-shadow:0 0 8px var(--error)}@keyframes pulse-warning{0%{transform:scale(.95);box-shadow:0 0 #f59e0bb3}70%{transform:scale(1);box-shadow:0 0 0 6px #f59e0b00}to{transform:scale(.95);box-shadow:0 0 #f59e0b00}}.status-dot.pulsing{animation:pulse-warning 2s infinite}.page-title{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:24px}.layout-grid{display:grid;gap:24px}.tree-node{padding:10px 12px;display:flex;align-items:center;justify-content:space-between;cursor:grab;border-radius:var(--radius-md);border:1px solid transparent;transition:all .15s ease}.tree-node:hover{background:var(--bg-main)}.tree-node.is-over{background:var(--accent-light);border-color:var(--accent);border-style:dashed}.tree-node-label{display:flex;align-items:center;gap:8px}.tree-node-id{color:var(--accent);font-size:.8rem;font-weight:500}.tree-node-value{font-weight:600;font-family:SF Mono,Monaco,monospace;color:var(--text-primary)}.app-layout{min-height:100vh}