* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Microsoft YaHei', 'PingFang SC', Arial, sans-serif;
            line-height: 1.8;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        
        .hero-section {
            background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
            color: white;
            padding: 60px 30px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
            opacity: 0.3;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
        }
        
        .hero-section h1 {
            font-size: 2.5em;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        
        .hero-section p {
            font-size: 1.2em;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        
        .emergency-alert {
            background: linear-gradient(45deg, #ff4757, #ff3838);
            color: white;
            padding: 25px;
            margin: 30px;
            border-radius: 15px;
            border-left: 5px solid #ff6b6b;
            box-shadow: 0 8px 25px rgba(255, 71, 87, 0.3);
        }
        
        .emergency-alert h3 {
            font-size: 1.4em;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        
        .emergency-alert h3::before {
            content: '🚨';
            margin-right: 10px;
            font-size: 1.2em;
        }
        
        .content-section {
            padding: 40px 30px;
        }
        
        .content-section h2 {
            color: #2c3e50;
            font-size: 1.8em;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 3px solid #3498db;
            position: relative;
        }
        
        .content-section h2::after {
            content: '';
            position: absolute;
            bottom: -3px;
            left: 0;
            width: 50px;
            height: 3px;
            background: linear-gradient(90deg, #ff6b6b, #4ecdc4);
        }
        
        .content-section h3 {
            color: #34495e;
            font-size: 1.4em;
            margin: 25px 0 15px 0;
            padding-left: 15px;
            border-left: 4px solid #3498db;
        }
        
        .content-section p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1em;
        }
        
        .symptoms-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        
        .symptom-card {
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            padding: 25px;
            border-radius: 15px;
            border-left: 5px solid #ff6b6b;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        
        .symptom-card:hover {
            transform: translateY(-5px);
        }
        
        .symptom-card h4 {
            color: #2c3e50;
            margin-bottom: 15px;
            font-size: 1.2em;
        }
        
        .symptom-card ul {
            list-style: none;
            padding-left: 0;
        }
        
        .symptom-card li {
            padding: 8px 0;
            padding-left: 25px;
            position: relative;
        }
        
        .symptom-card li::before {
            content: '⚠️';
            position: absolute;
            left: 0;
            top: 8px;
        }
        
        .causes-table {
            width: 100%;
            border-collapse: collapse;
            margin: 30px 0;
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .causes-table th {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 20px;
            text-align: left;
            font-weight: 600;
        }
        
        .causes-table td {
            padding: 18px 20px;
            border-bottom: 1px solid #e0e0e0;
        }
        
        .causes-table tr:nth-child(even) {
            background: #f8f9fa;
        }
        
        .causes-table tr:hover {
            background: #e3f2fd;
        }
        
        .treatment-steps {
            background: linear-gradient(135deg, #f1f2f6, #ddd6fe);
            padding: 30px;
            border-radius: 20px;
            margin: 30px 0;
        }
        
        .treatment-steps h3 {
            color: #2d3436;
            text-align: center;
            margin-bottom: 25px;
            border: none;
            padding: 0;
        }
        
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        
        .step-item {
            background: white;
            padding: 25px;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            position: relative;
        }
        
        .step-number {
            background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            font-weight: bold;
            font-size: 1.2em;
        }
        
        .faq-section {
            background: #f8f9fa;
            padding: 40px 30px;
        }
        
        .faq-item {
            background: white;
            margin-bottom: 15px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .faq-question {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 20px;
            cursor: pointer;
            font-weight: 600;
            position: relative;
            transition: background 0.3s ease;
        }
        
        .faq-question:hover {
            background: linear-gradient(135deg, #5a67d8, #6b46c1);
        }
        
        .faq-question::after {
            content: '+';
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.5em;
            transition: transform 0.3s ease;
        }
        
        .faq-question.active::after {
            transform: translateY(-50%) rotate(45deg);
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        
        .faq-answer.active {
            padding: 20px;
            max-height: 500px;
        }
        
        .image-placeholder {
            width: 100%;
            height: 300px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2em;
            margin: 30px 0;
            position: relative;
            overflow: hidden;
        }
        
        .image-placeholder::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect width="100" height="100" fill="rgba(255,255,255,0.1)"/></svg>');
        }
        
        .contact-section {
            background: linear-gradient(135deg, #2c3e50, #34495e);
            color: white;
            padding: 50px 30px;
            text-align: center;
        }
        
        .contact-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin: 40px 0;
        }
        
        .contact-item {
            background: rgba(255,255,255,0.1);
            padding: 25px;
            border-radius: 15px;
            backdrop-filter: blur(10px);
        }
        
        .contact-item h4 {
            margin-bottom: 15px;
            color: #ecf0f1;
        }
        
        .whatsapp-btn {
            display: inline-block;
            background: linear-gradient(135deg, #25d366, #128c7e);
            color: white;
            padding: 15px 30px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            margin: 20px 10px;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
        }
        
        .whatsapp-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
            color: white;
            text-decoration: none;
        }
        
        .whatsapp-btn::before {
            content: '📱';
            margin-right: 10px;
        }
        
        @media (max-width: 768px) {
            .hero-section {
                padding: 40px 20px;
            }
            
            .hero-section h1 {
                font-size: 1.8em;
            }
            
            .content-section {
                padding: 30px 20px;
            }
            
            .symptoms-grid {
                grid-template-columns: 1fr;
            }
            
            .contact-info {
                grid-template-columns: 1fr;
            }
            
            .causes-table {
                font-size: 0.9em;
            }
            
            .causes-table th,
            .causes-table td {
                padding: 12px 10px;
            }
        }
        
        @media (max-width: 480px) {
            .hero-section h1 {
                font-size: 1.5em;
            }
            
            .emergency-alert {
                margin: 20px 15px;
                padding: 20px;
            }
            
            .content-section {
                padding: 20px 15px;
            }
            
            .faq-section {
                padding: 30px 15px;
            }
            
            .contact-section {
                padding: 40px 15px;
            }
        }