:root{--primary-color: #2563eb;--primary-light: #3b82f6;--primary-dark: #1e40af;--secondary-color: #1e40af;--accent-color: #0ea5e9;--bg-color: #f0f4ff;--bg-white: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--text-light: #94a3b8;--border-color: #e2e8f0;--success-color: #10b981;--warning-color: #f59e0b;--danger-color: #ef4444;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 30px rgba(0, 0, 0, .12);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--max-width: 1200px;--header-height: 64px;--sidebar-width: 240px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans SC,sans-serif;color:var(--text-primary);background:var(--bg-color);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--primary-color);text-decoration:none;transition:color .2s}a:hover{color:var(--primary-dark)}img{max-width:100%;height:auto}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,textarea,select{font-family:inherit;font-size:inherit}.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.card{background:var(--bg-white);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:24px;transition:box-shadow .3s,transform .3s}.card:hover{box-shadow:var(--shadow-md)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;transition:all .2s;gap:6px}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px #2563eb4d}.btn-secondary{background:var(--bg-color);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:#e2e8f0}.btn-danger{background:var(--danger-color);color:#fff}.btn-danger:hover{background:#dc2626}.btn-success{background:var(--success-color);color:#fff}.btn-success:hover{background:#059669}.btn-sm{padding:6px 14px;font-size:13px}.btn-lg{padding:14px 32px;font-size:16px}.form-group{margin-bottom:18px}.form-label{display:block;font-size:14px;font-weight:500;color:var(--text-primary);margin-bottom:6px}.form-input,.form-textarea,.form-select{width:100%;padding:10px 14px;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:14px;color:var(--text-primary);background:var(--bg-white);transition:border-color .2s,box-shadow .2s}.form-input:focus,.form-textarea:focus,.form-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.form-textarea{min-height:100px;resize:vertical}.table-container{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border-color);font-size:14px}th{background:#f8fafc;font-weight:600;color:var(--text-secondary);white-space:nowrap}tr:hover td{background:#f8fafc}.tag{display:inline-flex;align-items:center;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:500}.tag-blue{background:#dbeafe;color:var(--primary-color)}.tag-green{background:#d1fae5;color:var(--success-color)}.tag-red{background:#fee2e2;color:var(--danger-color)}.tag-yellow{background:#fef3c7;color:var(--warning-color)}.page-header{padding:40px 0 30px;text-align:center}.page-header h1{font-size:32px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.page-header p{font-size:16px;color:var(--text-secondary)}.empty-state{text-align:center;padding:60px 20px;color:var(--text-light)}.empty-state p{font-size:16px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .4s ease}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 768px){.container{padding:0 16px}.page-header{padding:24px 0 20px}.page-header h1{font-size:24px}.card{padding:16px}th,td{padding:10px 12px}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}::selection{background:var(--primary-color);color:#fff}