*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:#333;background-color:#f5f5f5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-overflow-scrolling:touch;overscroll-behavior-y:contain}#app{min-height:100vh}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--light-color)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px;will-change:background}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}:root{--primary-color: #007bff;--primary-hover: #0056b3;--secondary-color: #6c757d;--secondary-hover: #5a6268;--success-color: #28a745;--danger-color: #dc3545;--danger-hover: #c82333;--warning-color: #ffc107;--info-color: #17a2b8;--light-color: #f8f9fa;--dark-color: #343a40;--border-color: #dee2e6;--text-color: #212529;--text-muted: #6c757d;--bg-color: #ffffff;--bg-secondary: #f8f9fa;--shadow-sm: 0 2px 4px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.12);--shadow-lg: 0 8px 24px rgba(0,0,0,.16);--transition-fast: .15s ease;--transition-base: .3s ease;--transition-slow: .5s ease;--border-radius: 8px;--border-radius-sm: 4px;--border-radius-lg: 12px}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:none;border-radius:var(--border-radius-sm);cursor:pointer;text-decoration:none;font-size:14px;font-weight:500;transition:all var(--transition-fast);position:relative;overflow:hidden;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;outline:none}.btn:active:not(:disabled){transform:scale3d(.97,.97,1);transition:transform .1s}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-primary{background-color:var(--primary-color);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover);box-shadow:var(--shadow-md);transform:translate3d(0,-1px,0)}.btn-danger{background-color:var(--danger-color);color:#fff;box-shadow:var(--shadow-sm)}.btn-danger:hover:not(:disabled){background-color:var(--danger-hover);box-shadow:var(--shadow-md);transform:translate3d(0,-1px,0)}.btn-secondary{background-color:var(--secondary-color);color:#fff;box-shadow:var(--shadow-sm)}.btn-secondary:hover:not(:disabled){background-color:var(--secondary-hover);box-shadow:var(--shadow-md);transform:translate3d(0,-1px,0)}.btn-outline{background-color:transparent;border:1px solid var(--border-color);color:var(--text-color)}.btn-outline:hover:not(:disabled){background-color:var(--light-color);border-color:var(--primary-color);color:var(--primary-color)}.card{background:var(--bg-color);border-radius:var(--border-radius);padding:24px;margin-bottom:20px;box-shadow:var(--shadow-sm);transition:transform var(--transition-fast) ease-out,box-shadow var(--transition-fast) ease-out,border-color var(--transition-fast) ease-out;border:1px solid transparent;will-change:transform;backface-visibility:hidden;transform:translateZ(0)}.card:hover{box-shadow:var(--shadow-md);transform:translate3d(0,-2px,0);border-color:#007bff1a}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:5px;font-weight:500}.form-group input,.form-group textarea{width:100%;padding:10px;border:1px solid var(--border-color);border-radius:4px;font-size:14px}.form-group textarea{min-height:200px;resize:vertical}