:root{--primary: #4f46e5;--primary-hover: #4338ca;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--sidebar-width: 240px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:14px;color:var(--gray-800);background:var(--gray-50);line-height:1.5}a{color:var(--primary);text-decoration:none}button{cursor:pointer;border:none;outline:none;font-family:inherit;font-size:inherit}input,textarea,select{font-family:inherit;font-size:inherit}.card{background:#fff;border-radius:8px;box-shadow:0 1px 3px #0000001a;padding:20px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border-radius:6px;font-weight:500;font-size:14px;transition:all .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-ghost{background:transparent;color:var(--gray-600);border:1px solid var(--gray-300)}.btn-ghost:hover{background:var(--gray-100)}.btn-sm{padding:4px 10px;font-size:12px}.form-group{margin-bottom:16px}.form-label{display:block;margin-bottom:6px;font-weight:500;color:var(--gray-700)}.form-input{width:100%;padding:8px 12px;border:1px solid var(--gray-300);border-radius:6px;outline:none;transition:border-color .15s}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 2px #4f46e51a}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:9999px;font-size:12px;font-weight:500}.badge-success{background:#d1fae5;color:#065f46}.badge-warning{background:#fef3c7;color:#92400e}.badge-danger{background:#fee2e2;color:#991b1b}.badge-info{background:#dbeafe;color:#1e40af}.badge-gray{background:var(--gray-100);color:var(--gray-600)}.alert{padding:10px 14px;border-radius:6px;font-size:13px;line-height:1.5}.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}.alert-success{background:#d1fae5;color:#065f46;border:1px solid #a7f3d0}.alert-warning{background:#fef3c7;color:#92400e;border:1px solid #fde68a}button:disabled{opacity:.6;cursor:not-allowed}