* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Microsoft JhengHei', 'PingFang HK', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #F5F9FC;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        .page-title {
            background: linear-gradient(135deg, #1E88E5 0%, #2C5F9B 100%);
            color: white;
            padding: 60px 20px;
            text-align: center;
            border-radius: 0 0 30px 30px;
            box-shadow: 0 4px 20px rgba(30, 136, 229, 0.3);
        }
        
        .page-title h1 {
            font-size: 2.5em;
            margin-bottom: 15px;
            font-weight: 700;
        }
        
        .page-title .subtitle {
            font-size: 1.2em;
            opacity: 0.95;
            font-weight: 300;
        }
        
        main {
            background: white;
            margin: 40px auto;
            padding: 50px;
            border-radius: 20px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        }
        
        article {
            max-width: 900px;
            margin: 0 auto;
        }
        
        .intro {
            background: #EBF4FA;
            padding: 30px;
            border-left: 5px solid #1E88E5;
            border-radius: 10px;
            margin-bottom: 40px;
            font-size: 1.1em;
            line-height: 1.9;
        }
        
        h2 {
            color: #2C5F9B;
            font-size: 2em;
            margin: 50px 0 25px 0;
            padding-bottom: 15px;
            border-bottom: 3px solid #4A90E2;
        }
        
        h3 {
            color: #1E88E5;
            font-size: 1.5em;
            margin: 35px 0 20px 0;
            padding-left: 15px;
            border-left: 4px solid #4A90E2;
        }
        
        h4 {
            color: #2C5F9B;
            font-size: 1.2em;
            margin: 25px 0 15px 0;
            font-weight: 600;
        }
        
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.05em;
        }
        
        .highlight-box {
            background: linear-gradient(135deg, #EBF4FA 0%, #F5F9FC 100%);
            padding: 30px;
            border-radius: 15px;
            margin: 30px 0;
            border: 2px solid #4A90E2;
        }
        
        .highlight-box h3 {
            color: #2C5F9B;
            margin-top: 0;
            border-left: none;
            padding-left: 0;
        }
        
        .condition-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin: 35px 0;
        }
        
        .condition-card {
            background: white;
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 4px 15px rgba(30, 136, 229, 0.1);
            border-top: 4px solid #1E88E5;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .condition-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(30, 136, 229, 0.2);
        }
        
        .condition-card h3 {
            color: #2C5F9B;
            font-size: 1.4em;
            margin: 0 0 15px 0;
            padding: 0;
            border: none;
        }
        
        .condition-card .icon {
            display: inline-block;
            background: linear-gradient(135deg, #1E88E5, #4A90E2);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 12px;
            text-align: center;
            line-height: 50px;
            font-size: 1.5em;
            margin-bottom: 15px;
        }
        
        ul, ol {
            margin: 20px 0 20px 30px;
        }
        
        li {
            margin: 12px 0;
            font-size: 1.05em;
        }
        
        .warning-box {
            background: #FFF3E0;
            border-left: 5px solid #FF9800;
            padding: 25px;
            margin: 30px 0;
            border-radius: 10px;
        }
        
        .warning-box strong {
            color: #E65100;
            font-size: 1.2em;
        }
        
        .success-box {
            background: #E8F5E9;
            border-left: 5px solid #4CAF50;
            padding: 25px;
            margin: 30px 0;
            border-radius: 10px;
        }
        
        .success-box strong {
            color: #2E7D32;
            font-size: 1.2em;
        }
        
        .info-box {
            background: #E3F2FD;
            border-left: 5px solid #2196F3;
            padding: 25px;
            margin: 30px 0;
            border-radius: 10px;
        }
        
        .info-box strong {
            color: #1565C0;
            font-size: 1.2em;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 35px 0;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
            border-radius: 10px;
            overflow: hidden;
        }
        
        th {
            background: linear-gradient(135deg, #2C5F9B, #4A90E2);
            color: white;
            padding: 20px;
            text-align: left;
            font-size: 1.1em;
        }
        
        td {
            padding: 18px 20px;
            border-bottom: 1px solid #E0E0E0;
        }
        
        tr:nth-child(even) {
            background-color: #F5F9FC;
        }
        
        tr:hover {
            background-color: #EBF4FA;
        }
        
        .comparison-section {
            margin: 40px 0;
        }
        
        .vs-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin: 30px 0;
        }
        
        .vs-card {
            padding: 30px;
            border-radius: 15px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }
        
        .vs-card h3 {
            margin-top: 0;
            padding: 0;
            border: none;
        }
        
        .mri-card {
            background: linear-gradient(135deg, #E8F5E9 0%, #F1F8E9 100%);
            border: 2px solid #4CAF50;
        }
        
        .ct-card {
            background: linear-gradient(135deg, #E3F2FD 0%, #E1F5FE 100%);
            border: 2px solid #2196F3;
        }
        
        .faq-section {
            margin: 60px 0;
        }
        
        .faq-section h2 {
            text-align: center;
            color: #2C5F9B;
            margin-bottom: 40px;
        }
        
        .faq-item {
            background: white;
            margin: 15px 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
            border: 1px solid #E0E0E0;
        }
        
        .faq-question {
            background: linear-gradient(135deg, #EBF4FA 0%, #F5F9FC 100%);
            padding: 25px 30px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.15em;
            color: #2C5F9B;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s ease;
        }
        
        .faq-question:hover {
            background: linear-gradient(135deg, #D6E9F8 0%, #EBF4FA 100%);
        }
        
        .faq-question::after {
            content: '+';
            font-size: 1.8em;
            color: #4A90E2;
            transition: transform 0.3s ease;
        }
        
        .faq-question.active::after {
            transform: rotate(45deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: white;
        }
        
        .faq-answer-content {
            padding: 25px 30px;
            color: #555;
            line-height: 1.9;
        }
        
        .contact-section {
            background: linear-gradient(135deg, #2C5F9B 0%, #4A90E2 100%);
            color: white;
            padding: 50px;
            border-radius: 20px;
            margin: 60px 0;
            text-align: center;
        }
        
        .contact-section h2 {
            color: white;
            border: none;
            margin-bottom: 30px;
        }
        
        .contact-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }
        
        .contact-item {
            background: rgba(255, 255, 255, 0.15);
            padding: 20px;
            border-radius: 12px;
            backdrop-filter: blur(10px);
        }
        
        .contact-item strong {
            display: block;
            font-size: 1.1em;
            margin-bottom: 8px;
        }
        
        .cta-button {
            display: inline-block;
            background: white;
            color: #2C5F9B;
            padding: 18px 45px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.15em;
            margin-top: 25px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
        }
        
        .related-articles {
            margin: 60px 0;
        }
        
        .related-articles h2 {
            text-align: center;
            color: #2C5F9B;
            margin-bottom: 35px;
        }
        
        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        
        .article-card {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid #E0E0E0;
        }
        
        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(30, 136, 229, 0.15);
        }
        
        .article-card-content {
            padding: 25px;
        }
        
        .article-card h3 {
            color: #2C5F9B;
            margin: 0 0 15px 0;
            padding: 0;
            border: none;
            font-size: 1.3em;
        }
        
        .article-card a {
            color: #4A90E2;
            text-decoration: none;
            font-weight: 600;
            transition: color 0.3s ease;
        }
        
        .article-card a:hover {
            color: #2C5F9B;
        }
        
        .step-by-step {
            counter-reset: step;
            margin: 30px 0;
        }
        
        .step-item {
            counter-increment: step;
            position: relative;
            padding: 25px 25px 25px 80px;
            margin: 25px 0;
            background: #F5F9FC;
            border-radius: 12px;
            border-left: 4px solid #4A90E2;
        }
        
        .step-item::before {
            content: counter(step);
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            background: linear-gradient(135deg, #1E88E5, #4A90E2);
            color: white;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.3em;
        }
        
        .step-item h4 {
            margin-top: 0;
        }
        
        @media (max-width: 768px) {
            .page-title h1 {
                font-size: 1.8em;
            }
            
            main {
                padding: 30px 20px;
            }
            
            h2 {
                font-size: 1.6em;
            }
            
            h3 {
                font-size: 1.3em;
            }
            
            .condition-grid {
                grid-template-columns: 1fr;
            }
            
            .vs-grid {
                grid-template-columns: 1fr;
            }
            
            table {
                font-size: 0.9em;
            }
            
            th, td {
                padding: 12px 10px;
            }
            
            .step-item {
                padding: 20px 20px 20px 70px;
            }
            
            .step-item::before {
                width: 40px;
                height: 40px;
                font-size: 1.1em;
                left: 15px;
            }
        }