/* --- Modern Blue Design Variables --- */
        :root {
            --primary: #0060a9;        /* HKSEV Style Blue */
            --primary-dark: #00457a;
            --secondary: #e6f4ff;      /* Light Blue Background */
            --accent: #00bcd4;         /* Cyan Accent */
            --alert: #ff9800;          /* Warning Color */
            --text-main: #2c3e50;
            --text-light: #546e7a;
            --bg-body: #f4f7f9;
            --bg-card: #ffffff;
            --shadow: 0 10px 30px -10px rgba(0, 96, 169, 0.15);
            --radius: 16px;
        }

        /* --- Reset & Base --- */
        body {
            font-family: 'Noto Sans TC', sans-serif;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-body);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3 { color: var(--primary); font-weight: 700; margin-top: 0; }
        a { color: var(--primary); text-decoration: none; transition: all 0.2s ease; }
        a:hover { color: var(--primary-dark); }
        
        /* --- Layout --- */
        .page-wrapper {
            max-width: 900px;
            margin: 40px auto;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        
        .content-container { padding: 40px 60px; }
        
        @media (max-width: 768px) {
            .page-wrapper { margin: 0; border-radius: 0; box-shadow: none; }
            .content-container { padding: 30px 20px; }
            h1.article-title { font-size: 1.8rem !important; }
        }

        /* --- Hero Header (Blue Gradient) --- */
        .hero-section {
            background: linear-gradient(135deg, var(--primary) 0%, #0083cb 100%);
            color: white;
            padding: 60px 40px;
            text-align: center;
            position: relative;
        }
        .hero-section::after {
            content: "";
            position: absolute;
            bottom: -20px;
            left: 0;
            width: 100%;
            height: 40px;
            background: var(--bg-card);
            border-radius: 50% 50% 0 0 / 100% 100% 0 0;
        }
        .breadcrumb {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.8);
            margin-bottom: 20px;
            display: inline-block;
            background: rgba(0,0,0,0.15);
            padding: 4px 14px;
            border-radius: 20px;
        }
        .breadcrumb a { color: white; border-bottom: 1px dotted rgba(255,255,255,0.5); }
        
        h1.article-title {
            font-size: 2.2rem;
            line-height: 1.3;
            margin-bottom: 15px;
            color: white;
            text-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        .subtitle {
            font-size: 1.1rem;
            opacity: 0.95;
            max-width: 700px;
            margin: 0 auto;
            font-weight: 400;
        }
        .meta-tag {
            display: inline-flex;
            align-items: center;
            margin-top: 20px;
            font-size: 0.85rem;
            background: rgba(255,255,255,0.2);
            padding: 6px 16px;
            border-radius: 20px;
        }

        /* --- Content Styling --- */
        section { margin-bottom: 50px; }
        
        h2.section-title {
            font-size: 1.6rem;
            margin-bottom: 25px;
            padding-left: 15px;
            border-left: 5px solid var(--primary);
            display: flex;
            align-items: center;
        }

        .disease-card {
            background: #fff;
            border: 1px solid #eee;
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 30px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        .disease-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 96, 169, 0.1);
            border-color: var(--secondary);
        }
        /* Top border accent */
        .disease-card::before {
            content: "";
            position: absolute;
            top: 0; left: 0; width: 100%; height: 4px;
            background: var(--primary);
            opacity: 0.8;
        }
        
        .disease-card h3 {
            color: #333;
            font-size: 1.3rem;
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 10px;
            margin-bottom: 15px;
        }
        
        ul.check-list { list-style: none; padding: 0; margin: 0; }
        ul.check-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 10px;
            color: #555;
        }
        ul.check-list li::before {
            content: "✔";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }
        ul.warning-list li::before {
            content: "⚠️";
            color: var(--alert);
        }

        /* --- Callout Box --- */
        .callout {
            background: #fff8e1;
            border-left: 4px solid var(--alert);
            padding: 20px 25px;
            border-radius: 0 8px 8px 0;
            margin: 30px 0;
            color: #5d4037;
        }
        .callout strong { color: #e65100; }

        /* --- CTA Banner (Blue Theme) --- */
        .cta-banner {
            background: var(--secondary);
            border-radius: var(--radius);
            padding: 35px;
            text-align: center;
            border: 2px dashed var(--primary); /* Blue Dashed Border */
            margin: 40px 0;
        }
        .cta-text { font-size: 1.2rem; font-weight: 600; color: var(--primary-dark); margin-bottom: 20px; }
        
        .btn-group {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        .btn-whatsapp {
            background: linear-gradient(45deg, #25D366, #128C7E);
            color: white;
        }
        .btn-call {
            background: white;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }

        /* --- Modern Table --- */
        .table-container {
            overflow-x: auto;
            border-radius: 12px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 20px 0;
            border: 1px solid #eee;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            min-width: 600px;
        }
        th {
            background: var(--primary);
            color: white;
            padding: 16px;
            text-align: left;
            font-weight: 500;
        }
        td {
            padding: 16px;
            border-bottom: 1px solid #eee;
            color: #555;
        }
        tr:last-child td { border-bottom: none; }
        tr:nth-child(even) { background-color: #f8fbff; } /* Light Blue Tint */

        /* --- FAQ Accordion --- */
        details {
            background: #fff;
            border: 1px solid #e0e0e0;
            border-radius: 10px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        details[open] { border-color: var(--primary); box-shadow: 0 4px 10px rgba(0, 96, 169, 0.1); }
        summary {
            padding: 18px 25px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            position: relative;
            color: #333;
        }
        summary::-webkit-details-marker { display: none; }
        summary::after {
            content: "+";
            position: absolute;
            right: 20px;
            font-size: 1.5rem;
            color: var(--primary);
            line-height: 1;
        }
        details[open] summary::after { content: "−"; }
        details[open] summary { background: var(--secondary); color: var(--primary-dark); }
        .faq-content { padding: 20px 25px; color: #555; border-top: 1px solid #d0e4f5; }

        /* --- Footer --- */
        .article-footer {
            margin-top: 60px;
            padding-top: 30px;
            border-top: 1px solid #eee;
            text-align: center;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .footer-tag {
            background: var(--secondary);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: bold;
            font-size: 0.8rem;
            margin-left: 8px;
        }