/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0056b3;
    --primary-dark: #004494;
    --primary-light: #e6f0fa;
    --secondary: #00a86b;
    --accent: #f39c12;
    --dark: #1a1a2e;
    --gray-900: #2d3748;
    --gray-700: #4a5568;
    --gray-500: #718096;
    --gray-300: #e2e8f0;
    --gray-100: #f7fafc;
    --white: #ffffff;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1), 0 6px 10px rgba(0,0,0,0.08);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--gray-900);
    line-height: 1.6;
    background: var(--white);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Top Bar */
.top-bar {
    background: var(--dark);
    color: var(--gray-300);
    font-size: 13px;
    padding: 8px 0;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left span {
    margin-right: 24px;
}

.top-bar-right a {
    color: var(--gray-300);
    text-decoration: none;
    margin-left: 20px;
    transition: var(--transition);
}

.top-bar-right a:hover {
    color: var(--white);
}

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
    gap: 24px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
    flex: 1;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}

.logo img {
    height: 44px;
    width: auto;
    display: block;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 1px;
}

.logo-sub {
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-500);
    letter-spacing: 0.5px;
}

/* Search Box in Header */
.header-search {
    position: relative;
    width: 280px;
}

.header-search input[type="text"] {
    width: 100%;
    padding: 8px 40px 8px 16px;
    border: 2px solid var(--gray-300);
    border-radius: 24px;
    font-size: 14px;
    font-family: var(--font-family);
    color: var(--gray-900);
    background: var(--gray-100);
    transition: var(--transition);
}

.header-search input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(0,86,179,0.1);
}

.header-search input[type="text"]::placeholder {
    color: var(--gray-500);
}

.header-search .search-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-500);
    font-size: 16px;
    pointer-events: none;
}

/* Search Results Dropdown */
.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-height: 400px;
    overflow-y: auto;
    z-index: 2000;
    display: none;
}

.search-results.active {
    display: block;
}

.search-results-header {
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--gray-300);
}

.search-result-item {
    display: block;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--gray-900);
    transition: var(--transition);
    border-bottom: 1px solid var(--gray-100);
}

.search-result-item:hover {
    background: var(--primary-light);
    color: var(--primary);
}

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

.search-result-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.search-result-content {
    font-size: 12px;
    color: var(--gray-500);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.search-result-item:hover .search-result-title {
    color: var(--primary);
}

.search-result-item:hover .search-result-content {
    color: var(--gray-700);
}

.search-no-results {
    padding: 24px 16px;
    text-align: center;
    color: var(--gray-500);
    font-size: 14px;
}

.search-no-results strong {
    display: block;
    color: var(--gray-900);
    margin-bottom: 4px;
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 4px;
}

.main-nav a {
    display: block;
    padding: 10px 16px;
    color: var(--gray-700);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius);
    transition: var(--transition);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
    background: var(--primary-light);
}

.has-dropdown {
    position: relative;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    padding: 8px 0;
    min-width: 260px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: var(--transition);
    list-style: none;
    display: flex;
    flex-direction: column;
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown a {
    padding: 10px 20px;
    border-radius: 0;
}

.dropdown a:hover {
    background: var(--gray-100);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-900);
    transition: var(--transition);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-family);
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--primary);
}

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
}

/* Hero Section */
.hero {
    position: relative;
    background: var(--dark);
    color: var(--white);
    padding: 100px 0 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,86,179,0.9) 0%, rgba(26,26,46,0.95) 100%);
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('../images/products/cover.png') center/cover;
    opacity: 0.15;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 700px;
    padding-bottom: 80px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero-content p {
    font-size: 18px;
    color: var(--gray-300);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Stats */
.hero-stats {
    position: relative;
    z-index: 2;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 40px 0;
}

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

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--gray-300);
    margin-top: 8px;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* Product Categories */
.product-categories {
    padding: 100px 0;
    background: var(--gray-100);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: stretch;
}

.category-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.category-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

.category-card-link *,
.category-card-link::before,
.category-card-link::after {
    text-decoration: none !important;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.category-image {
    height: 300px;
    overflow: hidden;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.category-card:hover .category-image img {
    transform: scale(1.05);
}

.category-content {
    padding: 28px;
}

.category-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.category-content p {
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 20px;
    line-height: 1.6;
}

.link-arrow {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

.link-arrow:hover {
    color: var(--primary-dark);
}

/* Why Us Section */
.why-us {
    padding: 100px 0;
    background: var(--white);
}

.why-us-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.why-us-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 20px;
}

.why-us-content > p {
    font-size: 16px;
    color: var(--gray-500);
    margin-bottom: 32px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.feature-icon {
    width: 32px;
    height: 32px;
    background: var(--secondary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.feature-list strong {
    display: block;
    font-size: 16px;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.feature-list p {
    font-size: 14px;
    color: var(--gray-500);
}

.why-us-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.why-us-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Applications */
.applications {
    padding: 100px 0;
    background: var(--gray-100);
}

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

.app-card {
    background: var(--white);
    padding: 40px 28px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.app-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.app-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.app-icon-title {
    display: flex;
    align-items: center;
    justify-content: left;
    gap: 12px;
    margin-bottom: 20px;
}

.app-icon-title .app-icon {
    margin-bottom: 0;
}

.app-icon-title h3 {
    margin-bottom: 0;
}

.app-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.app-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* Certifications */
.certifications {
    padding: 80px 0;
    background: var(--white);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.cert-item {
    text-align: center;
    padding: 24px 16px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    transition: var(--transition);
}

.cert-item-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.cert-item-link *,
.cert-item-link::before,
.cert-item-link::after {
    text-decoration: none !important;
}

.cert-item:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.cert-badge {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.cert-item span:last-child {
    font-size: 13px;
    color: var(--gray-500);
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 32px;
    line-height: 1.7;
}

.cta-section .btn-primary {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}

.cta-section .btn-primary:hover {
    background: var(--gray-100);
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--gray-300);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    margin-bottom: 12px;
}

.footer-brand .logo {
    margin-bottom: 0;
}

.footer-brand .company-name {
    font-size: 18px;
    font-weight: 700;
    color: #528fbf;
    letter-spacing: 0.5px;
    line-height: 1;
    margin-bottom: 0;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--gray-500);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gray-500);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--gray-500);
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 80px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    max-width: 600px;
    margin: 0 auto;
}

/* Breadcrumb */
.breadcrumb {
    background: var(--gray-100);
    padding: 16px 0;
    font-size: 14px;
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
}

.breadcrumb span {
    color: var(--gray-500);
    margin: 0 8px;
}

/* Content Section */
.content-section {
    padding: 60px 0;
}

.content-section h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 20px;
}

.content-section p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 20px;
}

/* Product Detail */
.product-detail {
    padding: 60px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.product-image img {
    width: 100%;
    height: auto;
    display: block;
}

.product-info h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.product-info .subtitle {
    font-size: 18px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 20px;
}

.product-info p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 24px;
}

.specs-table-full {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.specs-table-full th,
.specs-table-full td {
    padding: 10px 14px;
    text-align: left;
    border: 1px solid var(--gray-300);
    font-size: 13px;
}

.specs-table-full th {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
}

.specs-table-full tr:nth-child(even) {
    background: var(--gray-100);
}

.specs-table-full tr.section-row {
    background: var(--gray-300);
}

.specs-table-full tr.section-row td {
    font-weight: 600;
    color: var(--gray-900);
}

.specs-table-full td {
    color: var(--gray-700);
}

.specs-table tr:nth-child(even) {
    background: var(--gray-100);
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-details {
    margin-top: 32px;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.contact-text p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
}

.contact-form-wrapper {
    background: var(--gray-100);
    padding: 40px;
    border-radius: var(--radius-lg);
}

.contact-form-wrapper h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-family: var(--font-family);
    font-size: 14px;
    color: var(--gray-900);
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,86,179,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Customers Grid */
.customers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    align-items: center;
}

.customer-logo {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100px;
}

.customer-logo:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.customer-logo img {
    max-width: 100%;
    max-height: 60px;
    object-fit: contain;
}

/* Product Page Layout */
.product-nav {
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
    padding: 16px 0;
    position: sticky;
    top: 72px;
    z-index: 100;
}

.product-nav .container {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.product-nav a {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    text-decoration: none;
    border-radius: var(--radius);
    transition: var(--transition);
    white-space: nowrap;
}

.product-nav a:hover,
.product-nav a.active {
    background: var(--primary);
    color: var(--white);
}

/* Product Detail Page */
.product-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 0;
}

.product-hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.product-hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

.product-hero-content h1 {
    font-size: 36px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.product-hero-content .tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.product-hero-content p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 24px;
}

.product-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--gray-100);
    border-radius: var(--radius);
}

.product-feature-item img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.product-feature-item span {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
}

/* Specs Table Responsive */
.specs-wrapper {
    overflow-x: auto;
    margin-top: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.specs-table {
    width: 100%;
    min-width: 600px;
    border-collapse: collapse;
}

.specs-table th,
.specs-table td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--gray-300);
    font-size: 14px;
}

.specs-table th {
    background: var(--primary);
    color: var(--white);
    font-weight: 600;
    white-space: nowrap;
}

.specs-table tr:nth-child(even) {
    background: var(--gray-100);
}

.specs-table td {
    color: var(--gray-700);
}

/* Product Gallery */
.product-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 32px;
}

.gallery-item {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.full-width-gallery {
    grid-template-columns: 1fr;
}

.full-width-gallery .gallery-item img {
    height: auto;
    max-height: 600px;
    object-fit: contain;
}

/* Range List */
.range-list {
    list-style: none;
    margin-top: 16px;
    padding-left: 0;
}

.range-list li {
    padding: 8px 0 8px 20px;
    font-size: 15px;
    color: var(--gray-700);
    position: relative;
}

.range-list li::before {
    content: "•";
    color: var(--primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.range-list li strong {
    color: var(--primary);
    display: inline-block;
    min-width: 100px;
}

/* Two Column Content */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

/* Feature Cards */
.feature-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: #fff;
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.feature-card h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
}

.feature-icon-inline {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 8px;
}

.feature-card p:last-child {
    margin-bottom: 0;
}

/* Responsive */
@media (max-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .app-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cert-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .customers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-us-grid,
    .product-grid,
    .contact-grid,
    .product-hero,
    .two-col {
        grid-template-columns: 1fr;
    }
    
    .feature-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: var(--shadow-lg);
        padding: 16px;
        z-index: 1000;
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
    }

    .main-nav a {
        padding: 12px 16px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .header {
        position: relative;
    }
    
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-stats .container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .app-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .cert-item {
        padding: 16px 12px;
    }

    .cert-item img {
        height: 120px !important;
    }

    .customers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .customer-logo {
        height: 80px;
        padding: 16px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    .product-hero-content h1 {
        font-size: 28px;
    }
    
    .product-features {
        grid-template-columns: 1fr;
    }
    
    .feature-cards {
        grid-template-columns: 1fr;
    }
    
    .product-gallery {
        grid-template-columns: 1fr;
    }
    
    .product-nav .container {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .header .container {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 24px;
        gap: 12px;
    }

    .header-left {
        width: 100%;
        justify-content: space-between;
        gap: 12px;
    }

    .logo img {
        height: 36px;
    }

    .header-search {
        width: calc(100% - 120px);
        max-width: 200px;
        order: 3;
        flex-shrink: 0;
    }

    .header-search input[type="text"] {
        padding: 6px 32px 6px 12px;
        font-size: 13px;
    }

    .main-nav {
        width: 100%;
        order: 4;
    }
}

@media (max-width: 480px) {
    .header-search {
        width: 100%;
        max-width: none;
        order: 3;
        flex-shrink: 1;
        margin-top: 0;
    }

    .header .container {
        padding: 10px 16px;
    }

    .logo img {
        height: 32px;
    }

    .cert-grid {
        grid-template-columns: repeat(1, 1fr);
    }

    .cert-grid img {
        height: 200px;
    }
}

/* Product Sleeves Page - Model Header with Cert Badges */
.model-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    gap: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-300);
}

.model-title-wrapper .title-left {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.model-title-wrapper .title-left {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.model-title-wrapper .tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    align-self: flex-start;
}

.model-title-wrapper .model-title {
    font-size: 67px;
    font-weight: 900;
    color: var(--gray-900);
    margin: 0;
    line-height: 1.1;
}

.model-title-wrapper .cert-badges {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.model-title-wrapper .cert-badges img {
    height: 128px;
    width: auto;
    object-fit: contain;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    border-radius: var(--radius);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.model-title-wrapper .cert-badges img:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.2);
}

.model-subtitle {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-700);
    margin: 0 0 20px 0;
    line-height: 1.3;
}

/* Info Grid 4 Columns */
.info-grid-4 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.info-grid-4 .info-box {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-300);
}

.info-grid-4 .info-box h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.info-grid-4 .info-box.has-border h4 {
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-300);
}

.info-grid-4 .info-box h5 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-900);
    margin: 16px 0 8px 0;
}

.info-grid-4 .info-box h5:first-child {
    margin-top: 0;
}

.info-grid-4 .info-box p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 12px;
}

.info-grid-4 .info-box ul {
    list-style: none;
    padding-left: 0;
}

.info-grid-4 .info-box ul li {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.8;
    padding-left: 16px;
    position: relative;
    margin-bottom: 8px;
}

.info-grid-4 .info-box ul li::before {
    content: "•";
    color: var(--primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.info-grid-4 .info-box ul li strong {
    color: var(--gray-900);
}

.info-grid-4 .info-box .info-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius);
    margin-top: 12px;
}

.info-grid-4 .info-box .repair-materials,
.info-grid-4 .info-box .sleeve-width {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-300);
}

.info-grid-4 .info-box .repair-materials:first-child,
.info-grid-4 .info-box .sleeve-width:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

@media (max-width: 1024px) {
    .info-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .info-grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Section Title with Icon */
.section-title-with-icon {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.section-title-with-icon .headline-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.section-title-with-icon .headline-icon-small {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.section-title-with-icon h3 {
    margin: 0;
}

.section-title-with-icon h4 {
    margin: 0;
}

.model-section {
    padding: 60px 0;
}

.model-section:nth-child(even) {
    background: var(--gray-100);
}

.model-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    margin-bottom: 40px;
}

.model-header-left {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.model-header-right img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 1024px) {
    .model-header {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .model-header {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }
    
    .model-header-left {
        width: 100%;
        order: 2;
    }
    
    .model-header-right {
        width: 100%;
        order: 1;
    }
    
    .model-header-right img {
        width: 100%;
        height: auto;
    }
    
    .model-title-wrapper {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
    }
    
    .model-title-wrapper .title-left {
        display: flex;
        flex-direction: column;
        gap: 8px;
        flex: 1;
    }
    
    .model-title-wrapper .cert-badges {
        margin-top: 0;
        flex-shrink: 0;
    }
    
    .model-title-wrapper .cert-badges img {
        height: 80px;
    }
    
    .model-title-wrapper .model-title {
        font-size: 42px;
    }
    
    .model-subtitle {
        font-size: 22px;
    }
}