:root{--bg-primary: #0a0a0a;--bg-sidebar: #111111;--bg-surface: #1a1a1a;--bg-hover: #262626;--border-subtle: #2a2a2a;--text-primary: #ffffff;--text-secondary: #a1a1aa;--text-muted: #71717a;--accent: #3b82f6;--accent-hover: #2563eb;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-pill: 9999px;--shadow: 0 4px 24px rgba(0, 0, 0, .4);--transition: all .2s ease}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;background:var(--bg-primary);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}.app-shell{display:flex;height:100vh;width:100vw;overflow:hidden}.sidebar{width:260px;background:var(--bg-sidebar);border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;padding:16px 12px;gap:8px;flex-shrink:0}.sidebar-brand{display:flex;align-items:center;gap:12px;padding:8px 12px;margin-bottom:8px}.sidebar-brand-icon{width:32px;height:32px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--accent),#8b5cf6);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}.sidebar-brand-text h1{font-size:15px;font-weight:600;color:var(--text-primary);line-height:1.2}.sidebar-brand-text p{font-size:12px;color:var(--text-muted);line-height:1.2}.sidebar-nav{display:flex;flex-direction:column;gap:2px;flex:1}.nav-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:13px;cursor:pointer;transition:var(--transition);border:none;background:none;width:100%;text-align:left}.nav-item:hover,.nav-item.active{background:var(--bg-hover);color:var(--text-primary)}.nav-item svg{width:18px;height:18px;flex-shrink:0}.sidebar-footer{margin-top:auto;padding-top:8px;border-top:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:2px}.main-area{flex:1;display:flex;flex-direction:column;position:relative;overflow:hidden}.content-scroll{flex:1;overflow-y:auto;padding:40px 20%}@media(max-width:1024px){.content-scroll{padding:40px 5%}}.landing-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;gap:32px}.landing-logo{font-size:48px;font-weight:800;letter-spacing:8px;background:linear-gradient(135deg,#fff,#a1a1aa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.tag{font-size:11px;font-weight:500;padding:4px 10px;border-radius:var(--radius-pill);background:var(--bg-hover);color:var(--text-secondary);border:1px solid var(--border-subtle)}.upload-zone{border:2px dashed var(--border-subtle);border-radius:var(--radius-lg);padding:48px 32px;text-align:center;cursor:pointer;transition:var(--transition);background:var(--bg-surface)}.upload-zone:hover{border-color:var(--accent);background:var(--bg-hover)}.upload-zone.dragover{border-color:var(--accent);background:#3b82f614}.upload-zone svg{width:48px;height:48px;color:var(--text-muted);margin-bottom:16px}.upload-zone p{color:var(--text-secondary);font-size:14px;margin-bottom:8px}.upload-zone small{color:var(--text-muted);font-size:12px}.progress-bar{width:100%;height:6px;background:var(--bg-hover);border-radius:var(--radius-pill);overflow:hidden;margin-top:16px}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),#8b5cf6);border-radius:var(--radius-pill);transition:width .3s ease}.result-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:14px;margin-top:16px}.result-card h3{font-size:15px;font-weight:600;margin-bottom:12px}.sentence-row{display:flex;align-items:flex-start;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);margin-bottom:6px}.sentence-row.valid{background:#22c55e14;border:1px solid rgba(34,197,94,.2)}.sentence-row.invalid{background:#ef444414;border:1px solid rgba(239,68,68,.2)}.sentence-row .idx{font-size:11px;font-weight:600;color:var(--text-muted);min-width:32px}.sentence-row .text{flex:1;font-size:13px;color:var(--text-primary)}.sentence-row .badge{font-size:11px;font-weight:600;padding:2px 8px;border-radius:var(--radius-pill)}.badge.valid{background:#22c55e26;color:var(--success)}.badge.invalid{background:#ef444426;color:var(--danger)}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);background:var(--accent);color:#fff;font-size:13px;font-weight:500;border:none;cursor:pointer;transition:var(--transition)}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.loading-text{color:var(--text-muted);font-style:italic}.error-text{color:var(--danger)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:var(--radius-pill)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@keyframes pulse{0%{opacity:1}50%{opacity:.5}to{opacity:1}}.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:0}.metric-item{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--bg-primary);border-radius:var(--radius-md);border:1px solid var(--border-subtle)}.metric-item .metric-icon{width:32px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}.metric-item .metric-icon svg{width:16px;height:16px}.metric-item .metric-body{display:flex;flex-direction:column;gap:2px;min-width:0}.metric-item .metric-body small{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.metric-item .metric-body p{font-size:15px;font-weight:600;color:var(--text-primary);line-height:1.2}.engine-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}.engine-card{padding:12px;background:var(--bg-primary);border-radius:var(--radius-md);border:1px solid var(--border-subtle)}.engine-card h4{font-size:13px;font-weight:600;margin-bottom:12px;display:flex;align-items:center;gap:8px}.engine-card.hrm h4{color:var(--accent)}.engine-card.deepseek h4{color:#a855f7}