body .page-hero {
            padding: 160px 60px 80px;
            background:
                linear-gradient(110deg, rgba(18, 17, 14, 0.92) 0%, rgba(18, 17, 14, 0.78) 50%, rgba(18, 17, 14, 0.88) 100%),
                url("../images/ptab_bg2.jpg") center/cover no-repeat;
            position: relative;
        }

        body .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
            background-size: 60px 60px;
        }

        .page-hero-content {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            font-size: clamp(40px, 6vw, 56px);
            margin-bottom: 20px;
        }

        .page-hero p {
            font-size: 18px;
            color: var(--gray-400);
        }

        .product-detail-section {
            padding: 100px 60px;
            background: var(--dark);
        }

        .product-intro {
            max-width: 1200px;
            margin: 0 auto 80px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .product-intro-content h2 {
            font-size: 36px;
            margin-bottom: 24px;
        }

        .product-intro-content p {
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .product-intro-image {
            aspect-ratio: 4/3;
            background:
                linear-gradient(135deg, rgba(18, 17, 14, 0.28) 0%, rgba(18, 17, 14, 0.1) 100%),
                url("../images/ptab_bg2.jpg") center/cover no-repeat;
            border-radius: 24px;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .product-intro-image span {
            font-size: 120px;
            position: relative;
            z-index: 1;
            filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.35));
        }

        .key-features {
            max-width: 1200px;
            margin: 0 auto 80px;
        }

        .key-features h3 {
            font-size: 28px;
            margin-bottom: 40px;
            text-align: center;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-item {
            text-align: center;
            padding: 40px 24px;
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            transition: all 0.4s ease;
        }

        .feature-item:hover {
            transform: translateY(-8px);
            border-color: rgba(0, 102, 255, 0.3);
        }

        .feature-icon {
            font-size: 48px;
            margin-bottom: 20px;
        }

        .feature-item h4 {
            font-size: 18px;
            margin-bottom: 12px;
        }

        .feature-item p {
            font-size: 14px;
            color: var(--gray-400);
        }

        .products-showcase {
            max-width: 1200px;
            margin: 0 auto;
        }

        .products-showcase h3 {
            font-size: 28px;
            margin-bottom: 40px;
            text-align: center;
        }

        .product-card-detail {
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 40px;
            padding: 40px;
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 24px;
            margin-bottom: 30px;
            transition: all 0.4s ease;
        }

        .product-card-detail:hover {
            border-color: rgba(0, 102, 255, 0.3);
        }

        .product-card-image {
            aspect-ratio: 1;
            background: linear-gradient(135deg, rgba(0, 102, 255, 0.2) 0%, rgba(0, 212, 170, 0.1) 100%);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 80px;
        }

        .product-card-info h4 {
            font-size: 24px;
            margin-bottom: 8px;
        }

        .product-model {
            font-family: 'Outfit', sans-serif;
            font-size: 16px;
            color: var(--primary-light);
            margin-bottom: 16px;
        }

        .product-card-info > p {
            font-size: 14px;
            color: var(--gray-400);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .spec-table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 24px;
        }

        .spec-table th,
        .spec-table td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .spec-table th {
            font-size: 13px;
            color: var(--gray-500);
            font-weight: 400;
            width: 140px;
        }

        .spec-table td {
            font-size: 14px;
        }

        .product-actions {
            display: flex;
            gap: 12px;
        }

        .applications-section {
            padding: 100px 60px;
            background: var(--dark-secondary);
        }

        .applications-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .app-card {
            padding: 36px;
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .app-card:hover {
            border-color: rgba(0, 102, 255, 0.3);
            transform: translateY(-5px);
        }

        .app-card-icon {
            font-size: 48px;
            margin-bottom: 16px;
        }

        .app-card h4 {
            font-size: 18px;
            margin-bottom: 12px;
        }

        .app-card p {
            font-size: 14px;
            color: var(--gray-400);
        }

        .tech-advantage-section {
            padding: 100px 60px;
            background: var(--dark);
        }

        .advantage-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .advantage-item {
            display: grid;
            grid-template-columns: 80px 1fr;
            gap: 24px;
            padding: 32px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .advantage-item:last-child {
            border-bottom: none;
        }

        .advantage-number {
            font-family: 'Outfit', sans-serif;
            font-size: 48px;
            font-weight: 700;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .advantage-info h4 {
            font-size: 20px;
            margin-bottom: 8px;
        }

        .advantage-info p {
            font-size: 14px;
            color: var(--gray-400);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .product-intro {
                grid-template-columns: 1fr;
            }
            
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .product-card-detail {
                grid-template-columns: 1fr;
            }
            
            .applications-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .page-hero,
            .product-detail-section,
            .applications-section,
            .tech-advantage-section {
                padding: 60px 20px;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
        }