/* Global Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
                         "PingFang TC", "Microsoft JhengHei", sans-serif;
            line-height: 1.6;
            color: #1f2937;
            background: #ffffff;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Hero Section */
        .cat-fpv-hero {
            background: linear-gradient(180deg, #dbeafe 0%, #ffffff 100%);
            padding: 80px 20px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cat-fpv-hero-image {
            max-width: 400px;
            margin: 0 auto 30px;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
        }

        .cat-fpv-hero-image img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            display: block;
        }

        .cat-fpv-hero h1 {
            font-size: 48px;
            font-weight: 700;
            background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .cat-fpv-hero-subtitle {
            font-size: 20px;
            color: #4b5563;
            margin-bottom: 30px;
            font-weight: 500;
        }

        .cat-fpv-hero-cta {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 30px;
        }

        .cat-fpv-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 40px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
            color: white;
        }

        .cat-fpv-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
        }

        /* Section Styles */
        .cat-fpv-section {
            padding: 60px 20px;
            background: white;
        }

        .cat-fpv-section.alt-bg {
            background: #f9fafb;
        }

        .cat-fpv-section-title {
            font-size: 32px;
            color: #1e40af;
            text-align: center;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .cat-fpv-section-intro {
            text-align: center;
            font-size: 18px;
            color: #6b7280;
            margin-bottom: 40px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .cat-fpv-content {
            max-width: 900px;
            margin: 0 auto;
            font-size: 18px;
            line-height: 1.8;
            color: #4b5563;
        }

        .cat-fpv-content p {
            margin-bottom: 20px;
        }

        .cat-fpv-highlight {
            background: #dbeafe;
            border-left: 5px solid #3b82f6;
            padding: 20px 25px;
            margin: 25px 0;
            border-radius: 8px;
        }

        /* Info Cards Grid */
        .cat-fpv-cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .cat-fpv-card {
            background: white;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            padding: 25px;
            transition: all 0.3s ease;
        }

        .cat-fpv-card:hover {
            border-color: #3b82f6;
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
            transform: translateY(-3px);
        }

        .cat-fpv-card h4 {
            color: #1e40af;
            font-size: 20px;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .cat-fpv-card p {
            color: #4b5563;
            line-height: 1.7;
            font-size: 16px;
        }

        .cat-fpv-card ul {
            margin-left: 20px;
            color: #4b5563;
        }

        .cat-fpv-card li {
            margin-bottom: 8px;
            line-height: 1.6;
        }

        /* Symptoms Section */
        .cat-fpv-symptoms-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .cat-fpv-symptom-card {
            background: #f0f9ff;
            border-left: 5px solid #3b82f6;
            padding: 25px;
            border-radius: 12px;
            transition: all 0.3s ease;
        }

        .cat-fpv-symptom-card:hover {
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
            transform: translateX(5px);
        }

        .cat-fpv-symptom-card h4 {
            color: #1e40af;
            font-size: 20px;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .cat-fpv-symptom-card p {
            color: #4b5563;
            line-height: 1.7;
        }

        /* Emergency Warning Section */
        .cat-fpv-emergency {
            padding: 60px 20px;
            background: linear-gradient(135deg, #fef2f2, #fee2e2);
            border-top: 4px solid #dc2626;
            border-bottom: 4px solid #dc2626;
        }

        .cat-fpv-emergency h2 {
            font-size: 32px;
            color: #991b1b;
            text-align: center;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .cat-fpv-emergency-subtitle {
            text-align: center;
            font-size: 18px;
            color: #991b1b;
            margin-bottom: 40px;
            font-weight: 600;
        }

        .cat-fpv-emergency-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            max-width: 1100px;
            margin: 0 auto 40px;
        }

        .cat-fpv-emergency-item {
            background: white;
            padding: 20px;
            border-radius: 12px;
            border-left: 5px solid #dc2626;
            box-shadow: 0 2px 8px rgba(220, 38, 38, 0.15);
        }

        .cat-fpv-emergency-item strong {
            color: #dc2626;
            font-size: 17px;
            font-weight: 700;
        }

        .cat-fpv-emergency-item p {
            color: #4b5563;
            margin-top: 8px;
            line-height: 1.6;
        }

        .cat-fpv-emergency-cta {
            text-align: center;
            margin-top: 40px;
        }

        .cat-fpv-btn-emergency {
            display: inline-block;
            background: linear-gradient(135deg, #dc2626, #991b1b);
            color: white;
            padding: 18px 40px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 700;
            font-size: 20px;
            box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
            transition: all 0.3s ease;
        }

        .cat-fpv-btn-emergency:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(220, 38, 38, 0.5);
        }

        /* Treatment Section */
        .cat-fpv-treatment-box {
            background: linear-gradient(135deg, #dbeafe, #f0f9ff);
            border: 3px solid #3b82f6;
            border-radius: 16px;
            padding: 35px;
            margin: 30px auto;
            max-width: 1000px;
        }

        .cat-fpv-treatment-box h3 {
            color: #1e40af;
            font-size: 26px;
            margin-bottom: 20px;
            font-weight: 700;
            text-align: center;
        }

        .cat-fpv-treatment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 25px;
        }

        .cat-fpv-treatment-item {
            background: white;
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid #3b82f6;
        }

        .cat-fpv-treatment-item h4 {
            color: #1e40af;
            font-size: 18px;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .cat-fpv-treatment-item p {
            color: #4b5563;
            font-size: 15px;
            line-height: 1.6;
        }

        /* Survival Rate Table */
        .cat-fpv-survival-table {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            margin: 30px auto;
            max-width: 800px;
        }

        .cat-fpv-survival-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 25px;
            border-bottom: 1px solid #e5e7eb;
        }

        .cat-fpv-survival-row:last-child {
            border-bottom: none;
        }

        .cat-fpv-survival-row.header {
            background: #1e40af;
            color: white;
            font-weight: 700;
        }

        .cat-fpv-survival-label {
            font-size: 16px;
            font-weight: 600;
            color: #4b5563;
        }

        .cat-fpv-survival-row.header .cat-fpv-survival-label {
            color: white;
        }

        .cat-fpv-survival-value {
            font-size: 18px;
            font-weight: 700;
            color: #3b82f6;
        }

        .cat-fpv-survival-value.low {
            color: #dc2626;
        }

        .cat-fpv-survival-value.medium {
            color: #f59e0b;
        }

        .cat-fpv-survival-value.high {
            color: #10b981;
        }

        /* Vaccine Schedule */
        .cat-fpv-vaccine-schedule {
            background: white;
            border: 2px solid #3b82f6;
            border-radius: 12px;
            padding: 30px;
            margin: 30px auto;
            max-width: 900px;
        }

        .cat-fpv-vaccine-schedule h4 {
            color: #1e40af;
            font-size: 22px;
            margin-bottom: 20px;
            text-align: center;
            font-weight: 700;
        }

        .cat-fpv-vaccine-timeline {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .cat-fpv-vaccine-step {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 15px;
            background: #f0f9ff;
            border-radius: 8px;
            border-left: 4px solid #3b82f6;
        }

        .cat-fpv-vaccine-step .step-number {
            background: #3b82f6;
            color: white;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }

        .cat-fpv-vaccine-step .step-content {
            flex: 1;
        }

        .cat-fpv-vaccine-step strong {
            color: #1e40af;
            font-size: 17px;
        }

        .cat-fpv-vaccine-step p {
            color: #4b5563;
            margin-top: 5px;
            font-size: 15px;
        }

        /* FAQ Section */
        .cat-fpv-faq {
            padding: 60px 20px;
            background: #f9fafb;
        }

        .cat-fpv-faq h2 {
            font-size: 32px;
            color: #1e40af;
            text-align: center;
            margin-bottom: 50px;
            font-weight: 700;
        }

        .cat-fpv-faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .cat-fpv-faq-item {
            background: white;
            padding: 30px;
            border-radius: 12px;
            margin-bottom: 20px;
            border-left: 5px solid #3b82f6;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            transition: all 0.3s ease;
        }

        .cat-fpv-faq-item:hover {
            box-shadow: 0 6px 16px rgba(59, 130, 246, 0.15);
            transform: translateX(5px);
        }

        .cat-fpv-faq-question {
            color: #1e40af;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cat-fpv-faq-answer {
            color: #4b5563;
            font-size: 16px;
            line-height: 1.8;
        }

        .cat-fpv-faq-answer ul {
            margin-left: 20px;
            margin-top: 10px;
        }

        .cat-fpv-faq-answer li {
            margin-bottom: 8px;
        }

        .cat-fpv-faq-answer strong {
            color: #1e40af;
        }

        /* Related Articles Section */
        .cat-fpv-related-articles {
            padding: 60px 20px;
            background: white;
        }

        .cat-fpv-related-title {
            font-size: 32px;
            font-weight: 700;
            color: #1e40af;
            text-align: center;
            margin-bottom: 10px;
        }

        .cat-fpv-related-intro {
            text-align: center;
            color: #6b7280;
            font-size: 18px;
            margin-bottom: 40px;
        }

        .cat-fpv-related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .cat-fpv-related-card {
            background: #f9fafb;
            border: 2px solid #e5e7eb;
            border-radius: 12px;
            padding: 30px;
            text-decoration: none;
            transition: all 0.3s ease;
            display: block;
        }

        .cat-fpv-related-card:hover {
            border-color: #3b82f6;
            transform: translateY(-4px);
            box-shadow: 0 8px 20px rgba(59, 130, 246, 0.15);
        }

        .cat-fpv-related-card h4 {
            color: #1e40af;
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .cat-fpv-related-card p {
            color: #4b5563;
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 15px;
        }

        .cat-fpv-related-card .read-more {
            color: #3b82f6;
            font-weight: 600;
            font-size: 15px;
        }

        /* Final CTA Section */
        .cat-fpv-final-cta {
            padding: 80px 20px;
            background: linear-gradient(135deg, #dbeafe, #f0f9ff);
            text-align: center;
            border-top: 4px solid #3b82f6;
        }

        .cat-fpv-final-cta h2 {
            font-size: 36px;
            color: #1e40af;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .cat-fpv-final-cta p {
            font-size: 20px;
            color: #4b5563;
            margin-bottom: 35px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Back to Home Section */
        .cat-fpv-back-home {
            padding: 40px 20px;
            text-align: center;
            background: #f9fafb;
        }

        .cat-fpv-back-link {
            display: inline-block;
            color: #3b82f6;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            padding: 12px 24px;
            border: 2px solid #3b82f6;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .cat-fpv-back-link:hover {
            background: #3b82f6;
            color: white;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .cat-fpv-hero h1 {
                font-size: 36px;
            }

            .cat-fpv-hero-subtitle {
                font-size: 18px;
            }

            .cat-fpv-cards-grid,
            .cat-fpv-symptoms-grid,
            .cat-fpv-related-grid {
                grid-template-columns: 1fr;
            }

            .cat-fpv-hero-cta {
                flex-direction: column;
                align-items: center;
            }

            .cat-fpv-btn-primary,
            .cat-fpv-btn-emergency {
                width: 100%;
                max-width: 300px;
            }

            .cat-fpv-survival-row {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }
        }