/* ============================================
   PAGE STYLES - Product & Application Pages
   ============================================ */

/* Product Page Hero Section */
.product-hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-light) 100%);
    padding: var(--space-24) 0 var(--space-16);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.product-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/backdrop.png') center/cover no-repeat;
    opacity: 0.1;
    z-index: 0;
}

.product-hero-content {
    position: relative;
    z-index: 1;
    padding-left: 288px;
    padding-right: var(--space-6);
    text-align: left;
}

.product-hero h1 {
    color: white;
    font-size: var(--text-5xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.product-subtitle {
    color: var(--accent-cyan);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-6);
}

.product-badges {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    color: white;
    font-size: var(--text-sm);
    font-weight: 600;
}

.badge.badge-success {
    background: rgba(16, 185, 129, 0.2);
    border-color: var(--success-green);
    color: var(--success-green);
}

.badge.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    border-color: var(--warning-amber);
    color: var(--warning-amber);
}

.product-meta {
    display: flex;
    gap: var(--space-8);
    color: white;
    font-size: var(--text-lg);
    flex-wrap: wrap;
}

.product-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.product-meta-label {
    opacity: 0.8;
}

.product-meta-value {
    font-weight: 600;
    font-family: var(--font-mono);
}

.product-hero-actions {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-8);
    flex-wrap: wrap;
}

/* Quick Specs Grid */
.quick-specs {
    background: white;
    padding: var(--space-16) 0;
}

/* Quick Specs Grid - 2x2 layout for consistency */
.quick-specs-grid,
.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Alternative: Single horizontal line layout (uncomment to use) */
/*
.quick-specs-grid,
.specs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}
*/

.spec-card {
    background: white;
    padding: var(--space-8);
    border-radius: 16px;
    border: 2px solid var(--gray-400);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.spec-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03) 0%, rgba(30, 58, 138, 0.03) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.spec-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-cyan);
}

.spec-card:hover::before {
    opacity: 1;
}

.spec-card-label {
    color: var(--gray-700);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
}

.spec-card-value {
    color: var(--primary-blue);
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.spec-card-detail {
    color: var(--gray-700);
    font-size: var(--text-base);
}

/* Content Sections */
.content-section {
    padding: var(--space-16) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

.content-section.bg-light {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--white) 100%);
    margin: 0;
    max-width: 100%;
    padding: var(--space-16) 0;
    position: relative;
    overflow: hidden;
}

/* Add subtle backdrop to bg-light sections */
.content-section.bg-light::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/assets/images/backdrop.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.03;
    z-index: 0;
}

.content-section.bg-light > * {
    position: relative;
    z-index: 1;
}

.section-title {
    color: var(--primary-blue);
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.section-subtitle {
    color: var(--gray-700);
    font-size: var(--text-lg);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

/* Applications Section */
.applications-section {
    padding: var(--space-16) 0;
    background: white;
}

.applications-section .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.application-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-10);
    flex-wrap: wrap;
    border-bottom: 2px solid var(--gray-400);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.application-tabs .tab-button {
    padding: var(--space-4) var(--space-6);
    background: none;
    border: none;
    color: var(--gray-700);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
    border-radius: 8px 8px 0 0;
}

.application-tabs .tab-button:hover {
    color: var(--primary-blue);
    background: rgba(0, 212, 255, 0.05);
}

.application-tabs .tab-button.active {
    color: var(--primary-blue);
    background: rgba(0, 212, 255, 0.08);
}

.application-tabs .tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-cyan);
    border-radius: 2px 2px 0 0;
}

.tab-content {
    display: none;
    background: white;
    padding: var(--space-8);
    border-radius: 12px;
    border: 2px solid var(--gray-400);
    max-width: 900px;
    margin: 0 auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.tab-content.active {
    display: block;
    animation: fadeInScale 0.4s ease;
}

@keyframes fadeInScale {
    from { 
        opacity: 0; 
        transform: translateY(20px) scale(0.98);
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1);
    }
}

.tab-content h3 {
    color: var(--primary-blue);
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--accent-cyan);
}

.tab-content p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: var(--space-6);
    font-size: var(--text-lg);
}

/* Tabs Component (for other pages) */
.tabs-container {
    margin-bottom: var(--space-12);
}

.tabs-nav {
    display: flex;
    gap: var(--space-2);
    border-bottom: 2px solid var(--gray-400);
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
}

.tab-button {
    padding: var(--space-4) var(--space-6);
    background: none;
    border: none;
    color: var(--gray-700);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: color 0.3s ease;
}

.tab-button:hover {
    color: var(--primary-blue);
}

.tab-button.active {
    color: var(--primary-blue);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-cyan);
}

.tabs-container .tab-content {
    display: none;
    background: white;
    padding: var(--space-8);
    border-radius: 12px;
    border: 2px solid var(--gray-400);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.tabs-container .tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tabs-container .tab-content h3 {
    color: var(--primary-blue);
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-top: 0;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--accent-cyan);
}

.tabs-container .tab-content p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: var(--space-6);
    font-size: var(--text-lg);
}

.tab-content ul {
    list-style: none;
    padding: 0;
    margin-top: var(--space-6);
}

.tab-content li {
    padding: var(--space-4) 0;
    padding-left: var(--space-8);
    position: relative;
    color: var(--gray-700);
    line-height: 1.8;
    font-size: var(--text-base);
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
}

.tab-content li:hover {
    padding-left: var(--space-10);
    border-left-color: var(--accent-cyan);
}

.tab-content li::before {
    content: '▸';
    position: absolute;
    left: var(--space-3);
    color: var(--accent-cyan);
    font-weight: 700;
    font-size: var(--text-lg);
}

.tab-content li strong {
    color: var(--primary-blue);
    font-weight: 700;
}

/* Specifications Table */
.table-container,
.specs-table-container {
    overflow-x: auto;
    margin: var(--space-8) 0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
}

.specs-table thead {
    background: var(--primary-blue);
    color: white;
}

.specs-table th {
    padding: var(--space-4) var(--space-6);
    text-align: left;
    font-weight: 600;
    font-size: var(--text-base);
}

.specs-table td {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--gray-400);
    color: var(--gray-700);
}

.specs-table tbody tr:last-child td {
    border-bottom: none;
}

.specs-table tbody tr:hover {
    background: var(--gray-100);
}

/* Feature Cards */
.feature-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
    max-width: 1200px;
    margin: var(--space-8) auto;
    padding: 0 var(--space-6);
}

.feature-card {
    background: white;
    padding: var(--space-8);
    border-radius: 16px;
    border: 2px solid var(--gray-400);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03) 0%, rgba(30, 58, 138, 0.03) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-cyan);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--primary-light));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-3xl);
    margin-bottom: var(--space-5);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
    position: relative;
    z-index: 1;
}

.feature-card h3 {
    color: var(--primary-blue);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.feature-card p {
    color: var(--gray-700);
    line-height: 1.6;
}

/* Download Cards */
.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
    margin: var(--space-8) 0;
}

.download-card {
    background: white;
    padding: var(--space-6);
    border-radius: 12px;
    border: 2px solid var(--gray-400);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: all 0.3s ease;
}

.download-card:hover {
    border-color: var(--accent-cyan);
    transform: translateX(4px);
}

.download-icon {
    width: 56px;
    height: 56px;
    background: var(--gray-100);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-3xl);
    flex-shrink: 0;
}

.download-info h4 {
    color: var(--primary-blue);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.download-info p {
    color: var(--gray-700);
    font-size: var(--text-sm);
}

/* Related Products */
.related-products {
    padding: var(--space-16) 0;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--white) 100%);
}

.related-products .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.related-products .section-title {
    text-align: center;
    margin-bottom: var(--space-10);
}

.related-products .section-subtitle {
    text-align: center;
    margin-bottom: var(--space-10);
}

/* Related Products Grid - Consistent 3-column layout */
.related-products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    max-width: 1200px;
    margin: 0 auto;
}

/* If there are only 2 products, center them */
.related-products-grid:has(.related-product-card:nth-child(2):last-child) {
    max-width: 800px;
    grid-template-columns: repeat(2, 1fr);
}

.related-product-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    border: 2px solid var(--gray-400);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    display: block;
    text-decoration: none;
    position: relative;
}

.related-product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.03) 0%, rgba(30, 58, 138, 0.03) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.related-product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-cyan);
}

.related-product-card:hover::before {
    opacity: 1;
}

.related-product-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, var(--gray-100), var(--white));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-4xl);
    color: var(--accent-cyan);
    border-bottom: 2px solid var(--gray-400);
}

.related-product-content {
    padding: var(--space-6);
    position: relative;
}

.related-product-content h3 {
    color: var(--primary-blue);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-3);
}

.related-product-content p {
    color: var(--gray-700);
    margin-bottom: var(--space-5);
    line-height: 1.7;
    font-size: var(--text-base);
}

.related-product-content .btn {
    margin-top: var(--space-4);
}

/* CTA Section */
.page-cta {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-light) 100%);
    padding: var(--space-16) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(30, 58, 138, 0.1) 0%, transparent 50%);
    z-index: 0;
}

/* Add subtle backdrop to CTA */
.page-cta::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/assets/images/backdrop.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.05;
    z-index: 0;
}

.page-cta-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.page-cta h2 {
    color: white;
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.page-cta p {
    color: white;
    font-size: var(--text-xl);
    margin-bottom: var(--space-8);
    opacity: 0.9;
}

.page-cta-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* Company Story Card - glassmorphic styling below stats */
.company-story {
    margin-top: var(--space-8);
}

.company-story .content-text {
    position: relative;
    z-index: 1;
}

.company-story .lead-paragraph {
    font-size: var(--text-xl);
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: var(--space-6);
    line-height: 1.7;
}

.company-story p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: var(--space-6);
    font-size: var(--text-lg);
}

.company-story p:last-child {
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    /* Tablets: 2 columns for related products */
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 800px;
    }
}

/* ============================================
   CONTACT PAGE STYLES
   ============================================ */

/* Contact Info Section */
.contact-info-section {
    background: white;
    padding: var(--space-16) 0;
}

.contact-info-section .spec-card {
    cursor: pointer;
}

.contact-info-section .spec-card:active {
    transform: translateY(-4px) scale(0.98);
}

/* Contact Form Wrapper */
.contact-form-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

/* Form Sections */
.form-section {
    margin-bottom: var(--space-8);
}

/* Form Rows (2-column layout) */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

/* Form Groups */
.form-group {
    margin-bottom: var(--space-6);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-3);
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--text-base);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--gray-400);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-family: inherit;
    transition: all 0.3s ease;
    background: white;
    color: var(--text-primary);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%231E3A8A' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-4) center;
    padding-right: var(--space-10);
    border-width: 3px;
    border-color: var(--primary-blue);
    background-color: rgba(0, 212, 255, 0.05);
    box-shadow: 0 2px 8px rgba(30, 58, 138, 0.15);
}

.form-group select:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.25);
}

.form-group select option {
    padding: var(--space-3);
    background: white;
    color: var(--text-primary);
}

.form-group select option:hover,
.form-group select option:checked {
    background: var(--accent-cyan);
    color: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

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

/* Product Selection Grid */
.product-selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.product-select-card {
    border: 2px solid var(--gray-400);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    background: white;
}

.product-select-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.2);
}

.product-select-card.selected {
    border-color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.05);
}

.product-select-card.selected::after {
    content: '✓';
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    width: 28px;
    height: 28px;
    background: var(--accent-cyan);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: var(--text-sm);
}

.product-select-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
}

.product-select-name {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.product-select-type {
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    /* Mobile: Reset hero text padding */
    .product-hero-content {
        padding-left: var(--space-6) !important;
        padding-right: var(--space-6) !important;
    }
    
    .product-hero h1 {
        font-size: var(--text-4xl);
    }
    
    .product-meta {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    /* Mobile: Single column for specs */
    .quick-specs-grid,
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    /* Mobile: Single column for related products */
    .related-products-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    
    .section-title {
        font-size: var(--text-3xl);
    }
    
    .tabs-nav {
        flex-direction: column;
    }
    
    .tab-button {
        width: 100%;
        text-align: left;
    }
    
    .page-cta h2 {
        font-size: var(--text-3xl);
    }
    
    .page-cta p {
        font-size: var(--text-lg);
    }
    
    .feature-cards {
        grid-template-columns: 1fr;
    }
    
    /* Contact form mobile styles */
    .form-row {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .product-selection-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   ETHYL SILICATE OVERVIEW PAGE STYLES
   ============================================ */

/* Enhanced Product Hero - DO NOT override flex properties, they are set above */
.product-hero {
    min-height: auto;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    animation: bounce 2s infinite;
    z-index: 2;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.scroll-indicator svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Market Stats Section */
.market-stats {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-light) 100%);
    padding: var(--space-16) 0;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.market-stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/assets/images/backdrop.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.05;
    z-index: 0;
}

.market-stats > * {
    position: relative;
    z-index: 1;
}

.market-stats h2 {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-6);
    color: white;
}

.market-stats .market-description {
    font-size: var(--text-xl);
    opacity: 0.9;
    max-width: 800px;
    margin: 0 auto var(--space-12);
    line-height: 1.6;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-8);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

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

.stat-number {
    font-size: var(--text-5xl);
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-lg);
    opacity: 0.9;
}

/* Grade Selector Section */
.grade-selector {
    background: white;
    padding: var(--space-16) 0;
}

.grade-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.grade-card {
    background: white;
    border: 2px solid var(--gray-400);
    border-radius: 12px;
    padding: var(--space-8);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.grade-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-cyan);
}

.grade-card.popular {
    border-color: var(--accent-cyan);
    border-width: 3px;
}

.grade-card.popular::before {
    content: '⭐ 最受欢迎';
    position: absolute;
    top: 0;
    right: 0;
    background: var(--accent-cyan);
    color: white;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
    font-weight: 700;
    border-bottom-left-radius: 8px;
}

.grade-card.electronic {
    border-color: var(--highlight-purple);
}

.grade-card.electronic .sio2 {
    color: var(--highlight-purple);
}

.grade-card h3 {
    color: var(--primary-blue);
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
    margin-top: var(--space-6);
}

.grade-card.popular h3 {
    margin-top: var(--space-8);
}

.grade-card .subtitle {
    color: var(--gray-700);
    font-size: var(--text-base);
    margin-bottom: var(--space-6);
}

.grade-card .sio2 {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: var(--space-4);
}

.grade-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: var(--space-6);
}

.grade-card li {
    padding: var(--space-2) 0;
    color: var(--gray-700);
    font-size: var(--text-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}

.grade-card li::before {
    content: '✓';
    color: var(--success-green);
    font-weight: 700;
    flex-shrink: 0;
}

.btn-block {
    width: 100%;
}

/* Comparison Table Section */
.comparison-table-section {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--white) 100%);
    padding: var(--space-16) 0;
    position: relative;
    overflow: hidden;
}

.comparison-table-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/assets/images/backdrop.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.03;
    z-index: 0;
}

.comparison-table-section > * {
    position: relative;
    z-index: 1;
}

.comparison-table {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.comparison-table thead {
    background: var(--primary-blue);
    color: white;
}

.comparison-table th {
    padding: var(--space-4);
    text-align: left;
    font-weight: 600;
}

.comparison-table th:first-child {
    width: 30%;
}

.comparison-table td {
    padding: var(--space-4);
    border-bottom: 1px solid var(--gray-400);
}

.comparison-table tbody tr:hover {
    background: var(--gray-100);
}

.comparison-table .highlight {
    background: rgba(0, 212, 255, 0.1);
    font-weight: 600;
}

/* Industry Applications Section */
.industry-applications {
    padding: var(--space-16) 0;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.application-item {
    background: white;
    padding: var(--space-6);
    border-radius: 12px;
    border: 1px solid var(--gray-400);
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
    transition: all 0.3s ease;
}

.application-item:hover {
    transform: translateX(8px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.application-icon {
    font-size: var(--text-4xl);
    flex-shrink: 0;
}

.application-content h4 {
    color: var(--primary-blue);
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.application-content p {
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: var(--space-2);
}

.application-content .grade-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--gray-100);
    color: var(--primary-blue);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: 12px;
    margin-right: var(--space-2);
    margin-top: var(--space-2);
}

/* Mobile Responsive Styles for Overview Page */
@media (max-width: 768px) {
    .product-hero {
        min-height: auto;
        padding: var(--space-10) 0 var(--space-8);
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .grade-cards {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        font-size: var(--text-sm);
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--space-2);
    }
}
/* Company About Page - Factory Images Grid */
.facility-intro {
    margin-bottom: var(--space-8);
}

.factory-images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.factory-image-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.factory-image-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.factory-image-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.factory-image-card .image-caption {
    padding: var(--space-4);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
}

@media (max-width: 768px) {
    .factory-images-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }
    
    .factory-image-card img {
        height: 200px;
    }
}

/* Quality Page - Lab Images Grid */
.lab-images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-8);
}

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