:root {
            --primary: #0A1628;
            --gold: #C8A962;
            --gold-light: #D4BC7D;
            --teal-start: #0ea5e9;
            --teal-end: #10b981;
            --white: #FFFFFF;
            --gray-50: #F8FAFC;
            --gray-100: #F1F5F9;
            --gray-200: #E2E8F0;
            --gray-300: #CBD5E1;
            --gray-400: #94A3B8;
            --gray-500: #64748B;
            --text-dark: #1E293B;
            --text-body: #475569;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
            --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.15);
            --transition: 0.3s ease;
        }
        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--white);
            color: var(--text-body);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        button { font-family: inherit; cursor: pointer; border: none; outline: none; }
        ul { list-style: none; }
        h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; font-weight: 700; color: var(--text-dark); line-height: 1.2; }

        /* Header */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Montserrat', sans-serif;
            font-weight: 800;
            font-size: 1rem;
            color: var(--primary);
        }
        .logo-text {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .nav { display: flex; align-items: center; gap: 2rem; }
        .nav-link {
            color: var(--gray-500);
            font-size: 0.9rem;
            font-weight: 500;
            transition: color var(--transition);
        }
        .nav-link:hover { color: var(--primary); }
        .header-actions { display: flex; align-items: center; gap: 1rem; }
        .lang-switcher {
            display: flex;
            background: var(--gray-100);
            border-radius: 6px;
            padding: 3px;
        }
        .lang-btn {
            padding: 0.4rem 0.6rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--gray-500);
            background: transparent;
            border-radius: 4px;
            transition: all var(--transition);
        }
        .lang-btn:hover { color: var(--primary); }
        .lang-btn.active {
            background: var(--white);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .btn-quote {
            padding: 0.5rem 1.25rem;
            background: linear-gradient(135deg, var(--teal-start), var(--teal-end));
            color: var(--white);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 8px;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(14,165,233,0.3);
        }
        .btn-quote:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(14,165,233,0.4);
        }

        /* Breadcrumb */
        .breadcrumb {
            background: var(--gray-50);
            padding: 0.875rem 0;
            border-bottom: 1px solid var(--gray-200);
        }
        .breadcrumb-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
        }
        .breadcrumb a { color: var(--gray-500); transition: color var(--transition); }
        .breadcrumb a:hover { color: var(--gold); }
        .breadcrumb span { color: var(--gray-400); }
        .breadcrumb strong { color: var(--text-dark); font-weight: 600; }

        /* Main Content */
        .product-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 3rem 1.5rem 5rem;
        }
        .product-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: start;
        }

        /* Image Gallery */
        .product-gallery { position: sticky; top: 100px; }
        .main-image {
            background: var(--gray-50);
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 1rem;
            aspect-ratio: 4/3;
        }
        .main-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .main-image:hover img { transform: scale(1.02); }
        .thumbnails {
            display: flex;
            gap: 0.75rem;
        }
        .thumbnail {
            width: 80px;
            height: 80px;
            background: var(--gray-50);
            border-radius: 10px;
            overflow: hidden;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all var(--transition);
        }
        .thumbnail:hover { border-color: var(--gray-300); }
        .thumbnail.active { border-color: var(--gold); }
        .thumbnail img { width: 100%; height: 100%; object-fit: cover; }

        /* Product Info */
        .product-info { padding-top: 0.5rem; }
        .product-category-tag {
            display: inline-block;
            padding: 0.375rem 0.875rem;
            background: var(--gray-100);
            color: var(--gray-600);
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .product-title {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
            line-height: 1.1;
        }
        .product-model {
            font-size: 1rem;
            color: var(--gray-400);
            margin-bottom: 1.25rem;
            font-weight: 500;
        }
        .product-description {
            font-size: 1.05rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .gold-divider {
            height: 2px;
            background: linear-gradient(90deg, var(--gold), var(--gold-light), transparent);
            margin: 1.5rem 0;
        }

        /* Specs */
        .specs-section { margin-bottom: 2rem; }
        .specs-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 1rem;
        }
        .specs-list {
            background: var(--gray-50);
            border-radius: 12px;
            overflow: hidden;
        }
        .spec-item {
            display: flex;
            justify-content: space-between;
            padding: 0.875rem 1.25rem;
            border-bottom: 1px solid var(--gray-200);
        }
        .spec-item:last-child { border-bottom: none; }
        .spec-label { color: var(--gray-500); font-size: 0.9rem; font-weight: 500; }
        .spec-value { color: var(--text-dark); font-size: 0.9rem; font-weight: 600; text-align: right; }

        /* Features */
        .features-section { margin-bottom: 2rem; }
        .features-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 1rem;
        }
        .features-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        .feature-card {
            background: var(--gray-50);
            border-radius: 12px;
            padding: 1.25rem;
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--teal-start), var(--teal-end));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 0.75rem;
        }
        .feature-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 0.375rem;
        }
        .feature-card p {
            font-size: 0.85rem;
            color: var(--gray-500);
            line-height: 1.5;
        }

        /* CTA Buttons */
        .cta-section { margin-bottom: 2rem; }
        .cta-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
        .btn-quote-main {
            flex: 1;
            min-width: 180px;
            padding: 1rem 1.5rem;
            background: linear-gradient(135deg, var(--teal-start), var(--teal-end));
            color: var(--white);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 12px;
            transition: all var(--transition);
            box-shadow: 0 4px 15px rgba(14,165,233,0.35);
            text-align: center;
        }
        .btn-quote-main:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(14,165,233,0.45);
        }
        .btn-email {
            flex: 1;
            min-width: 140px;
            padding: 1rem 1.5rem;
            background: var(--gold);
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 12px;
            transition: all var(--transition);
            box-shadow: 0 4px 15px rgba(200,169,98,0.35);
            text-align: center;
        }
        .btn-email:hover {
            background: var(--gold-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(200,169,98,0.45);
        }

        /* FAQ */
        .faq-section { margin-bottom: 2rem; }
        .faq-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 1rem;
        }
        .faq-list { display: flex; flex-direction: column; gap: 0.75rem; }
        .faq-item {
            background: var(--gray-50);
            border-radius: 12px;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            padding: 1rem 1.25rem;
            background: transparent;
            text-align: left;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all var(--transition);
        }
        .faq-question:hover { background: var(--gray-100); }
        .faq-question::after {
            content: '+';
            font-size: 1.25rem;
            color: var(--gold);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question::after { transform: rotate(45deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-item.open .faq-answer { max-height: 200px; }
        .faq-answer-inner {
            padding: 0 1.25rem 1rem;
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* Related Products */
        .related-section {
            background: var(--gray-50);
            padding: 4rem 0;
            margin-top: 3rem;
        }
        .related-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .related-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .related-header h2 {
            font-size: 2rem;
            margin-bottom: 0.5rem;
        }
        .related-header p { color: var(--gray-500); }
        .related-scroll {
            display: flex;
            gap: 1.5rem;
            overflow-x: auto;
            padding-bottom: 1rem;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .related-scroll::-webkit-scrollbar { height: 6px; }
        .related-scroll::-webkit-scrollbar-track { background: var(--gray-200); border-radius: 3px; }
        .related-scroll::-webkit-scrollbar-thumb { background: var(--gray-400); border-radius: 3px; }
        .related-card {
            flex: 0 0 280px;
            background: var(--white);
            border-radius: 16px;
            overflow: hidden;
            scroll-snap-align: start;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            cursor: pointer;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .related-card-image {
            aspect-ratio: 4/3;
            overflow: hidden;
        }
        .related-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .related-card-image img { transform: scale(1.05); }
        .related-card-info { padding: 1.25rem; }
        .related-card-info h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.375rem;
        }
        .related-card-info p {
            font-size: 0.85rem;
            color: var(--gray-500);
        }

        /* Footer */
        .footer {
            background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
            border-top: 1px solid var(--gray-200);
            padding: 3rem 0 1.5rem;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 3rem;
            margin-bottom: 2rem;
        }
        .footer-brand p {
            color: var(--gray-500);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }
        .footer-col ul li { margin-bottom: 0.625rem; }
        .footer-col ul li a {
            color: var(--gray-500);
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover { color: var(--gold); }
        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid var(--gray-200);
        }
        .footer-bottom p {
            color: var(--gray-400);
            font-size: 0.85rem;
        }

        /* Modal */
        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.5);
            backdrop-filter: blur(4px);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 1.5rem;
        }
        .modal-overlay.active { display: flex; }
        .modal {
            background: var(--white);
            border-radius: 20px;
            max-width: 500px;
            width: 100%;
            max-height: 90vh;
            overflow-y: auto;
            box-shadow: var(--shadow-xl);
            animation: modalIn 0.3s ease;
        }
        @keyframes modalIn {
            from { opacity: 0; transform: scale(0.95) translateY(20px); }
            to { opacity: 1; transform: scale(1) translateY(0); }
        }
        .modal-header {
            padding: 1.5rem 1.5rem 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .modal-header h3 {
            font-size: 1.5rem;
            font-weight: 700;
        }
        .modal-close {
            width: 36px;
            height: 36px;
            background: var(--gray-100);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--gray-500);
            transition: all var(--transition);
        }
        .modal-close:hover { background: var(--gray-200); color: var(--text-dark); }
        .modal-body { padding: 1.5rem; }
        .form-group { margin-bottom: 1.25rem; }
        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.875rem 1rem;
            border: 1px solid var(--gray-300);
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: all var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--teal-start);
            box-shadow: 0 0 0 3px rgba(14,165,233,0.1);
        }
        .form-group textarea { min-height: 120px; resize: vertical; }
        .form-submit {
            width: 100%;
            padding: 1rem;
            background: linear-gradient(135deg, var(--teal-start), var(--teal-end));
            color: var(--white);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 10px;
            transition: all var(--transition);
        }
        .form-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(14,165,233,0.4);
        }
        .form-success {
            text-align: center;
            padding: 2rem;
            display: none;
        }
        .form-success.show { display: block; }
        .form-success-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--teal-start), var(--teal-end));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin: 0 auto 1rem;
        }
        .form-success h4 { font-size: 1.25rem; margin-bottom: 0.5rem; }
        .form-success p { color: var(--gray-500); }

        /* Error Page */
        .error-page {
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 60vh;
            text-align: center;
            padding: 3rem 1.5rem;
        }
        .error-page.show { display: flex; }
        .error-page h1 { font-size: 6rem; color: var(--gray-200); margin-bottom: 1rem; }
        .error-page h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
        .error-page p { color: var(--gray-500); margin-bottom: 2rem; }
        .error-page a {
            padding: 0.875rem 2rem;
            background: linear-gradient(135deg, var(--teal-start), var(--teal-end));
            color: var(--white);
            font-weight: 600;
            border-radius: 10px;
            transition: all var(--transition);
        }
        .error-page a:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

        /* Mobile Menu Button */
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            background: var(--gray-100);
            border-radius: 8px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }
        .mobile-menu-btn span {
            width: 20px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 1px;
            transition: all var(--transition);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .product-grid { gap: 2.5rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
        }
        @media (max-width: 768px) {
            .nav { display: none; }
            .mobile-menu-btn { display: flex; }
            .product-grid { grid-template-columns: 1fr; gap: 2rem; }
            .product-gallery { position: static; }
            .product-title { font-size: 2rem; }
            .features-grid { grid-template-columns: 1fr; }
            .cta-buttons { flex-direction: column; }
            .btn-quote-main, .btn-email { min-width: 100%; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .related-card { flex: 0 0 240px; }
        }
        @media (max-width: 480px) {
            .product-main { padding: 1.5rem 1rem 3rem; }
            .product-title { font-size: 1.75rem; }
            .thumbnail { width: 60px; height: 60px; }
            .related-card { flex: 0 0 200px; }
        }
/* ==================== Header Email ==================== */
.header-email {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #C8A962;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s;
    white-space: nowrap;
    margin-left: 8px;
}
.header-email:hover {
    color: #D4BC7D;
}
.header-email svg {
    flex-shrink: 0;
}
@media (max-width: 900px) {
    .header-email {
        font-size: 0.75rem;
    }
}
@media (max-width: 640px) {
    .header-email {
        display: none;
    }
}

/* ==================== Email Contact Bar ==================== */
.email-bar {
    background: linear-gradient(135deg, #0A1628 0%, #1E293B 100%);
    padding: 2rem 1.5rem;
    margin: 0;
}
.email-bar-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}
.email-bar-icon {
    width: 56px;
    height: 56px;
    background: rgba(200,169,98,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.email-bar-icon svg {
    width: 28px;
    height: 28px;
}
.email-bar-text {
    text-align: center;
}
.email-bar-text h3 {
    color: #FFFFFF;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    font-family: 'Montserrat', sans-serif;
}
.email-bar-text p {
    color: #94A3B8;
    font-size: 0.9rem;
}
.email-bar-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #C8A962, #D4BC7D);
    color: #0A1628;
    font-size: 1.1rem;
    font-weight: 700;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    font-family: 'Montserrat', sans-serif;
}
.email-bar-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(200,169,98,0.3);
}
@media (max-width: 640px) {
    .email-bar-inner {
        flex-direction: column;
        gap: 1rem;
    }
    .email-bar-link {
        font-size: 0.95rem;
        padding: 0.65rem 1.5rem;
    }
}