:root {
            --primary-color: #2c5f7c;
            --secondary-color: #4a9eba;
            --accent-color: #e67e22;
            --text-color: #333;
            --light-bg: #f8f9fa;
            --white: #ffffff;
            --border-color: #e0e0e0;
            --success-color: #27ae60;
            --warning-color: #f39c12;
            --danger-color: #e74c3c;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft JhengHei', '微軟正黑體', sans-serif;
            line-height: 1.8;
            color: var(--text-color);
            background-color: var(--light-bg);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header */
        .article-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: var(--white);
            padding: 60px 0 40px;
            margin-bottom: 40px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        
        .breadcrumb {
            font-size: 14px;
            margin-bottom: 20px;
            opacity: 0.9;
        }
        
        .breadcrumb a {
            color: var(--white);
            text-decoration: none;
            transition: opacity 0.3s;
        }
        
        .breadcrumb a:hover {
            opacity: 0.8;
            text-decoration: underline;
        }
        
        h1 {
            font-size: 2.5em;
            margin-bottom: 20px;
            font-weight: 700;
            line-height: 1.3;
        }
        
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            opacity: 0.95;
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        /* Main Content */
        .article-content {
            background: var(--white);
            padding: 50px;
            border-radius: 12px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            margin-bottom: 40px;
        }
        
        .lead-text {
            font-size: 1.2em;
            color: #555;
            margin-bottom: 30px;
            padding: 25px;
            background: #e8f4f8;
            border-left: 5px solid var(--secondary-color);
            border-radius: 4px;
        }
        
        h2 {
            font-size: 2em;
            color: var(--primary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--secondary-color);
        }
        
        h3 {
            font-size: 1.6em;
            color: var(--primary-color);
            margin: 30px 0 15px;
        }
        
        h4 {
            font-size: 1.3em;
            color: var(--secondary-color);
            margin: 25px 0 12px;
        }
        
        h5 {
            font-size: 1.1em;
            color: var(--text-color);
            margin: 20px 0 10px;
            font-weight: 600;
        }
        
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        
        /* Info Boxes */
        .info-box {
            padding: 25px;
            margin: 30px 0;
            border-radius: 8px;
            border-left: 5px solid;
        }
        
        .info-box.warning {
            background: #fff3cd;
            border-color: var(--warning-color);
        }
        
        .info-box.danger {
            background: #f8d7da;
            border-color: var(--danger-color);
        }
        
        .info-box.success {
            background: #d4edda;
            border-color: var(--success-color);
        }
        
        .info-box.info {
            background: #d1ecf1;
            border-color: var(--secondary-color);
        }
        
        .info-box-title {
            font-weight: 700;
            font-size: 1.1em;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        /* Lists */
        ul, ol {
            margin: 20px 0 20px 30px;
        }
        
        li {
            margin-bottom: 12px;
            line-height: 1.8;
        }
        
        li strong {
            color: var(--primary-color);
        }
        
        /* Table */
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            overflow: hidden;
            border-radius: 8px;
        }
        
        .comparison-table thead {
            background: var(--primary-color);
            color: var(--white);
        }
        
        .comparison-table th,
        .comparison-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        .comparison-table tbody tr:hover {
            background: var(--light-bg);
        }
        
        /* Visual Guide Cards */
        .symptom-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        
        .symptom-card {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            padding: 25px;
            border-radius: 12px;
            border: 2px solid var(--border-color);
            transition: all 0.3s;
        }
        
        .symptom-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        
        .symptom-card h4 {
            margin-top: 0;
            color: var(--primary-color);
            border-bottom: 2px solid var(--secondary-color);
            padding-bottom: 10px;
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--accent-color) 0%, #d35400 100%);
            color: var(--white);
            padding: 50px;
            border-radius: 12px;
            text-align: center;
            margin: 40px 0;
            box-shadow: 0 4px 15px rgba(230, 126, 34, 0.3);
        }
        
        .cta-section h2 {
            color: var(--white);
            border: none;
            margin: 0 0 20px 0;
            padding: 0;
        }
        
        .cta-button {
            display: inline-block;
            background: var(--white);
            color: var(--accent-color);
            padding: 18px 45px;
            font-size: 1.2em;
            font-weight: 700;
            text-decoration: none;
            border-radius: 50px;
            transition: all 0.3s;
            margin-top: 20px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }
        
        .emergency-contact {
            background: var(--danger-color);
            color: var(--white);
            padding: 30px;
            border-radius: 8px;
            margin: 30px 0;
            text-align: center;
        }
        
        .emergency-contact h3 {
            color: var(--white);
            margin-top: 0;
        }
        
        .phone-number {
            font-size: 2em;
            font-weight: 700;
            margin: 15px 0;
            letter-spacing: 2px;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            h1 {
                font-size: 1.8em;
            }
            
            h2 {
                font-size: 1.5em;
            }
            
            .article-content {
                padding: 25px 20px;
            }
            
            .cta-section {
                padding: 30px 20px;
            }
            
            .comparison-table {
                font-size: 14px;
            }
            
            .comparison-table th,
            .comparison-table td {
                padding: 10px;
            }
        }
        
        @media (max-width: 480px) {
            h1 {
                font-size: 1.5em;
            }
            
            .article-meta {
                flex-direction: column;
                gap: 10px;
            }
            
            .phone-number {
                font-size: 1.5em;
            }
        }