* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft JhengHei", "PingFang TC", sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #F5F9FC;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        /* Page Title */
        .page-title {
            background: linear-gradient(135deg, #2C5F9B 0%, #4A90E2 100%);
            color: white;
            padding: 60px 30px;
            text-align: center;
            border-radius: 0 0 30px 30px;
            box-shadow: 0 4px 20px rgba(44, 95, 155, 0.3);
            margin-bottom: 40px;
        }
        
        .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 Content */
        main {
            background: white;
            border-radius: 20px;
            padding: 50px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
            margin-bottom: 30px;
        }
        
        article h2 {
            color: #2C5F9B;
            font-size: 2em;
            margin: 40px 0 20px 0;
            padding-bottom: 10px;
            border-bottom: 3px solid #4A90E2;
        }
        
        article h3 {
            color: #1E88E5;
            font-size: 1.5em;
            margin: 30px 0 15px 0;
        }
        
        article h4 {
            color: #2C5F9B;
            font-size: 1.2em;
            margin: 20px 0 10px 0;
        }
        
        article p {
            margin-bottom: 20px;
            text-align: justify;
        }
        
        .intro {
            background: #EBF4FA;
            padding: 30px;
            border-left: 5px solid #4A90E2;
            border-radius: 10px;
            margin-bottom: 30px;
            font-size: 1.1em;
        }
        
        /* Lists */
        ul, ol {
            margin: 20px 0 20px 30px;
        }
        
        li {
            margin-bottom: 12px;
            line-height: 1.8;
        }
        
        /* Info Box */
        .info-box {
            background: linear-gradient(135deg, #EBF4FA 0%, #F5F9FC 100%);
            border: 2px solid #4A90E2;
            border-radius: 15px;
            padding: 25px;
            margin: 30px 0;
        }
        
        .info-box h3 {
            color: #2C5F9B;
            margin-top: 0;
        }
        
        .warning-box {
            background: #FFF3E0;
            border-left: 5px solid #FF9800;
            padding: 20px;
            border-radius: 10px;
            margin: 25px 0;
        }
        
        .warning-box strong {
            color: #E65100;
        }
        
        .critical-box {
            background: #FFEBEE;
            border-left: 5px solid #F44336;
            padding: 20px;
            border-radius: 10px;
            margin: 25px 0;
        }
        
        .critical-box strong {
            color: #C62828;
        }
        
        .success-box {
            background: #E8F5E9;
            border-left: 5px solid #4CAF50;
            padding: 20px;
            border-radius: 10px;
            margin: 25px 0;
        }
        
        .success-box strong {
            color: #2E7D32;
        }
        
        /* Table */
        .table-wrapper {
            overflow-x: auto;
            margin: 30px 0;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
            border-radius: 10px;
            overflow: hidden;
        }
        
        th {
            background: linear-gradient(135deg, #2C5F9B 0%, #4A90E2 100%);
            color: white;
            padding: 18px;
            text-align: left;
            font-weight: 600;
        }
        
        td {
            padding: 15px 18px;
            border-bottom: 1px solid #EBF4FA;
        }
        
        tr:hover {
            background: #F5F9FC;
        }
        
        /* Stage Cards */
        .stage-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        
        .stage-card {
            background: white;
            border: 3px solid #4A90E2;
            border-radius: 15px;
            padding: 25px;
            transition: all 0.3s ease;
        }
        
        .stage-card.stage-1 {
            border-color: #4CAF50;
        }
        
        .stage-card.stage-2 {
            border-color: #8BC34A;
        }
        
        .stage-card.stage-3 {
            border-color: #FF9800;
        }
        
        .stage-card.stage-4 {
            border-color: #F44336;
        }
        
        .stage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(44, 95, 155, 0.2);
        }
        
        .stage-header {
            font-size: 1.5em;
            font-weight: bold;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid;
        }
        
        .stage-card.stage-1 .stage-header {
            color: #4CAF50;
            border-color: #4CAF50;
        }
        
        .stage-card.stage-2 .stage-header {
            color: #8BC34A;
            border-color: #8BC34A;
        }
        
        .stage-card.stage-3 .stage-header {
            color: #FF9800;
            border-color: #FF9800;
        }
        
        .stage-card.stage-4 .stage-header {
            color: #F44336;
            border-color: #F44336;
        }
        
        /* Symptom Grid */
        .symptom-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        
        .symptom-item {
            background: #F5F9FC;
            padding: 20px;
            border-radius: 10px;
            border-left: 4px solid #FF9800;
        }
        
        .symptom-item h4 {
            color: #E65100;
            margin-bottom: 10px;
        }
        
        /* Diet Tips */
        .diet-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        
        .diet-card {
            background: linear-gradient(135deg, #E8F5E9 0%, #F1F8E9 100%);
            border: 2px solid #4CAF50;
            border-radius: 15px;
            padding: 25px;
        }
        
        .diet-card h3 {
            color: #2E7D32;
            margin-top: 0;
        }
        
        /* FAQ Section */
        .faq-section {
            background: white;
            border-radius: 20px;
            padding: 50px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
            margin-bottom: 30px;
        }
        
        .faq-section h2 {
            color: #2C5F9B;
            font-size: 2em;
            margin-bottom: 30px;
            text-align: center;
        }
        
        .faq-item {
            margin-bottom: 15px;
            border: 2px solid #EBF4FA;
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .faq-item:hover {
            border-color: #4A90E2;
        }
        
        .faq-question {
            background: linear-gradient(135deg, #F5F9FC 0%, #EBF4FA 100%);
            padding: 20px 25px;
            cursor: pointer;
            font-weight: 600;
            color: #2C5F9B;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }
        
        .faq-question:hover {
            background: linear-gradient(135deg, #4A90E2 0%, #1E88E5 100%);
            color: white;
        }
        
        .faq-question.active {
            background: linear-gradient(135deg, #2C5F9B 0%, #4A90E2 100%);
            color: white;
        }
        
        .faq-icon {
            font-size: 1.5em;
            font-weight: bold;
            transition: transform 0.3s ease;
        }
        
        .faq-question.active .faq-icon {
            transform: rotate(45deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            background: white;
            padding: 0 25px;
        }
        
        .faq-answer.active {
            max-height: 1500px;
            padding: 20px 25px;
        }
        
        /* Contact Section */
        .contact-section {
            background: linear-gradient(135deg, #2C5F9B 0%, #4A90E2 100%);
            color: white;
            border-radius: 20px;
            padding: 50px;
            box-shadow: 0 4px 20px rgba(44, 95, 155, 0.3);
            margin-bottom: 30px;
        }
        
        .contact-section h2 {
            color: white;
            border-bottom: 3px solid white;
            padding-bottom: 15px;
            margin-bottom: 30px;
        }
        
        .contact-grid {
            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: 10px;
            backdrop-filter: blur(10px);
        }
        
        .contact-item strong {
            display: block;
            margin-bottom: 10px;
            font-size: 1.1em;
        }
        
        .contact-item a {
            color: white;
            text-decoration: none;
            transition: opacity 0.3s ease;
        }
        
        .contact-item a:hover {
            opacity: 0.8;
            text-decoration: underline;
        }
        
        .whatsapp-btn {
            display: inline-block;
            background: #25D366;
            color: white;
            padding: 15px 30px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            margin-top: 20px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
        }
        
        .whatsapp-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
        }
        
        /* Related Articles */
        .related-articles {
            background: white;
            border-radius: 20px;
            padding: 50px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        }
        
        .related-articles h2 {
            color: #2C5F9B;
            font-size: 2em;
            margin-bottom: 30px;
            text-align: center;
        }
        
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        
        .article-card {
            background: #F5F9FC;
            border: 2px solid #EBF4FA;
            border-radius: 15px;
            padding: 25px;
            text-decoration: none;
            color: #333;
            transition: all 0.3s ease;
        }
        
        .article-card:hover {
            transform: translateY(-5px);
            border-color: #4A90E2;
            box-shadow: 0 8px 25px rgba(44, 95, 155, 0.15);
        }
        
        .article-card h3 {
            color: #2C5F9B;
            margin-top: 0;
            margin-bottom: 10px;
        }
        
        .article-card p {
            color: #666;
            margin-bottom: 0;
        }
        
        /* Responsive Design */
        @media (max-width: 768px) {
            .page-title h1 {
                font-size: 1.8em;
            }
            
            main, .faq-section, .contact-section, .related-articles {
                padding: 30px 20px;
            }
            
            article h2 {
                font-size: 1.6em;
            }
            
            article h3 {
                font-size: 1.3em;
            }
            
            .stage-grid, .symptom-grid, .diet-grid, .articles-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 480px) {
            .page-title {
                padding: 40px 20px;
            }
            
            .page-title h1 {
                font-size: 1.5em;
            }
            
            .page-title .subtitle {
                font-size: 1em;
            }
        }