body {
            font-family: 'Segoe UI', Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }

        header {
            background-color: #333;
            color: white;
            text-align: center;
            padding: 1em 0;
            margin-bottom: 1em;
        }

        .logo {
            font-size: 2em;
            font-weight: bold;
        }

        main {
            max-width: 800px;
            margin: 0 auto;
            padding: 2em;
            background-color: white;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            border-radius: 8px;
        }

        .article {
            text-align: left;
        }

        .article h1 {
            color: #2c3e50;
            margin-bottom: 1em;
        }

        .article h2 {
            color: #34495e;
            margin-top: 1.5em;
        }

        .article h3 {
            color: #455a64;
        }

        .article blockquote {
            border-left: 4px solid #3498db;
            margin: 1.5em 0;
            padding: 1em;
            background-color: #f7f9fc;
            font-style: italic;
        }

        .article ul {
            padding-left: 1.5em;
        }

        .docs-section {
            margin-top: 3em;
            padding-top: 2em;
            border-top: 1px solid #eee;
        }

        .docs-section h2 {
            color: #333;
            font-size: 1.5em;
        }

        .docs-section ul {
            list-style: none;
            padding: 0;
        }

        .docs-section li {
            margin: 0.5em 0;
        }

        .docs-section a {
            color: #3498db;
            text-decoration: none;
            transition: color 0.2s;
        }

        .docs-section a:hover {
            color: #2980b9;
        }

        .contact-info {
            margin: 2em 0;
            padding: 1em;
            background-color: #f8f9fa;
            border-radius: 4px;
        }
        
        .about-us {
            margin: 2em 0;
            padding: 1em;
            background-color: #f8f9fa;
            border-radius: 4px;
        }

        .time-visualization {
            margin: 2em 0;
            padding: 2em;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        
        .time-comparison {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 2em;
            margin: 2em 0;
        }
        
        .time-block {
            padding: 1.5em;
            background: #f8f9fa;
            border-radius: 8px;
            text-align: center;
            position: relative;
        }
        
        .time-circle {
            width: 80px;
            height: 80px;
            margin: 0 auto 1em;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: white;
            font-size: 1.1em;
        }
        
        .current-time {
            background: #3498db;
        }
        
        .solution-time {
            background: #e74c3c;
        }
        
        .robotaxi-time {
            background: #2ecc71;
        }
        
        .innotech-time {
            background: #9b59b6;
        }
        
        .time-total {
            font-size: 1.5em;
            font-weight: bold;
            color: #e74c3c;
            margin-top: 1em;
        }

        .time-chart {
            margin: 2em 0;
            padding: 1em;
            background: #f8f9fa;
            border-radius: 8px;
        }

        .chart-container {
            height: 400px;
            margin: 2em 0;
            position: relative;
            border-left: 2px solid #ccc;
            border-bottom: 2px solid #ccc;
            padding: 20px;
            overflow: visible;
        }

        .time-line {
            position: absolute;
            height: 2px;
            transform-origin: left bottom;
        }

        .current-line {
            background: #3498db;
            width: 120%;  
            bottom: 0;
            left: 0;
            transform: rotate(-45deg);  
        }

        .solution-line {
            background: #e74c3c;
            width: 120%;
            bottom: 0;
            left: 0;
            transform: translate(0, -100px) rotate(-30deg); 
        }

        .year-markers {
            position: absolute;
            bottom: -20px;
            left: 0;
            width: 100%;
            display: flex;
            justify-content: space-between;
        }

        .hour-markers {
            position: absolute;
            left: -60px;  
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .intersection-point {
            position: absolute;
            width: 10px;
            height: 10px;
            background: #2ecc71;
            border-radius: 50%;
            left: 80%;
            bottom: 20%;  
            box-shadow: 0 0 0 4px rgba(46, 204, 113, 0.2);
        }

        .chart-grid {
            position: absolute;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(90deg, rgba(0,0,0,0.05) 1px, transparent 1px),
                linear-gradient(0deg, rgba(0,0,0,0.05) 1px, transparent 1px);
            background-size: 20% 20%;
            opacity: 0.5;
        }

        .formula-legend {
            margin-top: 2em;
        }

        .formula-legend ul {
            list-style: none;
            padding: 0;
            margin: 1em 0;
        }

        .formula-legend li {
            margin: 0.8em 0;
            display: flex;
            align-items: center;
            color: #34495e;
        }

        .color-box {
            width: 30px;
            height: 3px;
            margin-right: 10px;
            flex-shrink: 0;
        }

        .formula-details {
            margin-top: 1.5em;
            padding: 1em;
            background: #f8f9fa;
            border-radius: 4px;
        }

        .formula-details p {
            margin: 0 0 0.5em 0;
            color: #2c3e50;
        }

        .formula-details ul {
            margin: 0;
            padding-left: 1.5em;
            list-style-type: none;
        }

        .formula-details li {
            margin: 0.5em 0;
            color: #34495e;
            position: relative;
        }

        .formula-details li::before {
            content: "•";
            color: #9b59b6;
            font-weight: bold;
            position: absolute;
            left: -1em;
        }

        .mission-link {
            display: inline-block;
            margin: 2em 0;
            padding: 1em 2em;
            background: #3498db;
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: bold;
            transition: background 0.3s ease;
        }

        .mission-link:hover {
            background: #2980b9;
        }
        
        .time-highlight {
            color: #9b59b6;
            font-weight: bold;
            margin-top: 0.5em;
        }

        .calculator {
            background: #f8f9fa;
            padding: 2em;
            border-radius: 8px;
            margin: 2em 0;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .calculator h3 {
            margin-top: 0;
            color: #2c3e50;
        }

        .calculator-form {
            display: grid;
            gap: 1em;
            max-width: 500px;
            margin: 0 auto;
        }

        .form-group {
            display: grid;
            gap: 0.5em;
        }

        .form-group label {
            font-weight: bold;
            color: #34495e;
        }

        .form-group input {
            padding: 0.5em;
            border: 1px solid #bdc3c7;
            border-radius: 4px;
            font-size: 1em;
        }

        .calculator-result {
            margin-top: 1.5em;
            padding: 1em;
            background: #fff;
            border-radius: 4px;
            display: none;
        }

        .calculator-result.visible {
            display: block;
        }

        .result-highlight {
            color: #9b59b6;
            font-weight: bold;
            font-size: 1.2em;
        }

        .calculate-btn {
            background: #9b59b6;
            color: white;
            border: none;
            padding: 0.8em 1.5em;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1em;
            font-weight: bold;
            margin-top: 1em;
        }

        .calculate-btn:hover {
            background: #8e44ad;
        }

        .time-savings {
            margin-top: 2em;
            padding-top: 1.5em;
            border-top: 1px solid #eee;
        }

        .time-savings h4 {
            color: #2c3e50;
            margin-bottom: 1em;
        }

        .meaningful-activities {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5em;
            margin: 1.5em 0;
            text-align: center;
        }

        .activity {
            background: #f8f9fa;
            padding: 1em;
            border-radius: 8px;
        }

        .activity strong {
            color: #9b59b6;
            display: block;
            margin-bottom: 0.5em;
        }

        .activity p {
            margin: 0.5em 0;
            font-size: 0.9em;
            color: #34495e;
        }

        .time-note {
            font-size: 0.9em;
            color: #7f8c8d;
            margin-top: 1em;
        }