/* ===== CSS Variables ===== */
:root {
    --color-primary: #D4A853;
    --color-primary-dark: #B8923F;
    --color-secondary: #1A1A1A;
    --color-background: #FFFFFF;
    --color-surface: #F5F5F5;
    --color-surface-dark: #0D0D0D;
    --color-text: #1A1A1A;
    --color-text-muted: #6B6B6B;
    --color-text-light: #FFFFFF;
    --color-border: #E5E5E5;
    --color-accent: #2C3E50;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.15);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

.section-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 700;
    margin-bottom: 16px;
    text-wrap: balance;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-muted);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header .section-subtitle {
    margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background-color: var(--color-text-light);
    color: var(--color-text);
}

.btn-outline-light {
    background-color: transparent;
    color: var(--color-text-light);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background-color: var(--color-text-light);
    color: var(--color-text);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: transparent;
    transition: var(--transition);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header.scrolled .logo,
.header.scrolled .nav-links a {
    color: var(--color-text);
}

.header.scrolled .mobile-menu-btn span {
    background-color: var(--color-text);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-light);
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-light);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-cta {
    margin-left: 24px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-light);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: 120px 0 80px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background-color: rgba(212, 168, 83, 0.2);
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 24px;
    line-height: 1.1;
    text-wrap: balance;
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: left;
}

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--color-primary);
    display: inline;
}

.stat-suffix {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
}

/* ===== Products Section ===== */
.products {
    padding: 100px 0;
    background-color: var(--color-background);
}

.product-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--color-secondary);
    color: var(--color-text-light);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.product-card.hidden {
    display: none;
}

.product-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background-color: var(--color-surface);
}

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

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

.product-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-info {
    padding: 24px;
}

.product-category {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-primary);
}

.product-name {
    font-size: 18px;
    font-weight: 600;
    margin: 8px 0;
}

.product-spec {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.product-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.moq {
    font-size: 13px;
    color: var(--color-text-muted);
}

.product-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
}

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

.products-cta {
    text-align: center;
    margin-top: 60px;
}

/* ===== About Section ===== */
.about {
    padding: 100px 0;
    background-color: var(--color-surface);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-bottom: 20px;
    line-height: 1.7;
}

.about-features {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

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

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-text);
}

.feature-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-content p {
    font-size: 14px;
    color: var(--color-text-muted);
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.experience-badge {
    position: absolute;
    bottom: -30px;
    left: -30px;
    background-color: var(--color-secondary);
    color: var(--color-text-light);
    padding: 24px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.experience-badge .years {
    display: block;
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.experience-badge .text {
    display: block;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 8px;
}

/* ===== Advantages Section ===== */
.advantages {
    padding: 100px 0;
    background-color: var(--color-background);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.advantage-card {
    padding: 40px 32px;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid transparent;
}

.advantage-card:hover {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.advantage-card:hover .advantage-number,
.advantage-card:hover .advantage-title {
    color: var(--color-primary);
}

.advantage-card:hover .advantage-desc {
    color: rgba(255, 255, 255, 0.8);
}

.advantage-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-border);
    margin-bottom: 16px;
    transition: var(--transition);
}

.advantage-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    transition: var(--transition);
}

.advantage-desc {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.6;
    transition: var(--transition);
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 100px 0;
    background-color: var(--color-secondary);
    text-align: center;
}

.cta-title {
    font-size: clamp(28px, 5vw, 42px);
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== Contact Section ===== */
.contact {
    padding: 100px 0;
    background-color: var(--color-background);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
}

.contact-desc {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

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

.contact-icon svg {
    width: 22px;
    height: 22px;
    color: var(--color-primary);
}

.contact-item h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 15px;
    color: var(--color-text-muted);
}

.contact-form-wrapper {
    background-color: var(--color-surface);
    padding: 48px;
    border-radius: var(--radius-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-background);
    transition: var(--transition);
    font-size: 15px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.15);
}

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

/* ===== Footer ===== */
.footer {
    background-color: var(--color-surface-dark);
    color: var(--color-text-light);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 24px;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--color-primary);
}

.social-links svg {
    width: 18px;
    height: 18px;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 24px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-certifications {
    display: flex;
    gap: 16px;
}

.footer-certifications span {
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.7);
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--color-background);
    padding: 48px;
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 400px;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(46, 204, 113, 0.1);
    border-radius: 50%;
}

.modal-icon svg {
    width: 32px;
    height: 32px;
    color: #2ecc71;
}

.modal-content h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.modal-content p {
    font-size: 15px;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        gap: 48px;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        gap: 48px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-links.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-background);
        padding: 24px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-links.active a {
        color: var(--color-text);
    }
    
    .hero-content {
        padding: 100px 0 60px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .experience-badge {
        position: relative;
        bottom: auto;
        left: auto;
        margin-top: -40px;
        margin-left: 20px;
        display: inline-block;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 32px 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .product-filters {
        flex-direction: column;
    }
    
    .filter-btn {
        width: 100%;
    }
    
    .cta-actions {
        flex-direction: column;
    }
    
    .cta-actions .btn {
        width: 100%;
    }
}

/* ===== Inner Page Styles ===== */
.header-inner {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-inner .logo,
.header-inner .nav-links a {
    color: var(--color-text);
}

.header-inner .mobile-menu-btn span {
    background-color: var(--color-text);
}

/* ===== Page Hero ===== */
.page-hero {
    background-color: var(--color-secondary);
    padding: 140px 0 60px;
}

.page-hero-sm {
    padding: 120px 0 30px;
}

.page-hero-content {
    text-align: center;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 20px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--color-primary);
}

.breadcrumb span:not(:last-child) {
    color: rgba(255, 255, 255, 0.4);
}

.page-title {
    font-size: clamp(32px, 5vw, 48px);
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Products Page ===== */
.products-page {
    padding: 60px 0 100px;
}

.products-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
}

.products-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-section {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--color-border);
}

.sidebar-title {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.category-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--color-text);
    background-color: transparent;
    border-radius: var(--radius-md);
    transition: var(--transition);
    text-align: left;
}

.category-btn:hover,
.category-btn.active {
    background-color: var(--color-surface);
    color: var(--color-primary);
}

.category-btn .count {
    font-size: 12px;
    color: var(--color-text-muted);
}

.filter-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.filter-list label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--color-text-muted);
    cursor: pointer;
}

.filter-list input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.sidebar-cta {
    background-color: var(--color-surface);
    padding: 24px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.sidebar-cta h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.sidebar-cta p {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.products-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
}

.results-count {
    font-size: 14px;
    color: var(--color-text-muted);
}

.toolbar-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.sort-select {
    padding: 10px 16px;
    font-size: 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-background);
    cursor: pointer;
}

.view-toggle {
    display: flex;
    gap: 4px;
}

.view-btn {
    padding: 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-background);
    transition: var(--transition);
}

.view-btn:hover,
.view-btn.active {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.view-btn:hover svg,
.view-btn.active svg {
    color: var(--color-text-light);
}

.view-btn svg {
    width: 18px;
    height: 18px;
    color: var(--color-text-muted);
}

.product-features {
    list-style: none;
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.product-features li {
    position: relative;
    padding-left: 16px;
    margin-bottom: 4px;
}

.product-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    background-color: var(--color-primary);
    color: var(--color-text);
    border-radius: var(--radius-sm);
    z-index: 1;
}

.product-badge.new {
    background-color: #2ecc71;
    color: white;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination-btn {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-background);
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled),
.pagination-btn.active {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    color: var(--color-text-light);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-btn svg {
    width: 18px;
    height: 18px;
}

.pagination-dots {
    color: var(--color-text-muted);
}

/* ===== Product Detail Page ===== */
.product-detail {
    padding: 40px 0 80px;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    margin-bottom: 80px;
}

.product-gallery {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.gallery-main {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--color-surface);
    margin-bottom: 16px;
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.thumb {
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
}

.thumb:hover,
.thumb.active {
    border-color: var(--color-primary);
}

.thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-info {
    padding-top: 20px;
}

.product-detail-title {
    font-size: 32px;
    margin-bottom: 8px;
}

.product-model {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.stars {
    display: flex;
    gap: 2px;
}

.stars svg {
    width: 18px;
    height: 18px;
    fill: var(--color-primary);
}

.rating-text {
    font-size: 14px;
    color: var(--color-text-muted);
}

.product-description {
    font-size: 16px;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.product-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.highlight {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-text);
}

.highlight svg {
    width: 18px;
    height: 18px;
    color: #2ecc71;
    flex-shrink: 0;
}

.product-options {
    margin-bottom: 32px;
}

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

.option-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 10px;
}

.option-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.option-btn {
    padding: 10px 16px;
    font-size: 13px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-background);
    transition: var(--transition);
}

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

.option-btn.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text);
}

.pricing-info {
    background-color: var(--color-surface);
    padding: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.price-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
}

.price-row:last-child {
    border-bottom: none;
}

.price-label {
    font-size: 14px;
    color: var(--color-text-muted);
}

.price-value {
    font-size: 14px;
    font-weight: 500;
}

.product-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.product-actions .btn {
    flex: 1;
}

.trust-badges {
    display: flex;
    gap: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-muted);
}

.badge-item svg {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
}

/* Product Tabs */
.product-tabs {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.tabs-header {
    display: flex;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.tab-btn {
    flex: 1;
    padding: 16px 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
}

.tab-btn:hover {
    color: var(--color-text);
}

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    background-color: var(--color-background);
}

.tabs-content {
    padding: 40px;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    margin-bottom: 40px;
}

.specs-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
}

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

.specs-table tr {
    border-bottom: 1px solid var(--color-border);
}

.specs-table td {
    padding: 12px 0;
    font-size: 14px;
}

.specs-table td:first-child {
    color: var(--color-text-muted);
    width: 40%;
}

.certifications-row h3 {
    font-size: 18px;
    margin-bottom: 16px;
}

.cert-badges {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.cert-badge {
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 600;
    background-color: var(--color-surface);
    border-radius: var(--radius-md);
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.feature-item {
    display: flex;
    gap: 24px;
}

.feature-icon-lg {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
}

.feature-icon-lg svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.feature-content-lg h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.feature-content-lg p {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.application-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.application-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.application-content {
    padding: 20px;
}

.application-content h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.application-content p {
    font-size: 14px;
    color: var(--color-text-muted);
}

.packaging-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
}

.packaging-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
}

/* Related Products */
.related-products {
    padding: 80px 0;
    background-color: var(--color-surface);
}

.related-products .section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 40px;
}

.view-all-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
}

.product-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ===== About Page ===== */
.about-intro {
    padding: 100px 0;
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-intro-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.stats-section {
    padding: 80px 0;
    background-color: var(--color-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stat-card {
    text-align: center;
    padding: 32px;
}

.stat-number-lg {
    font-size: 56px;
    font-weight: 700;
    color: var(--color-primary);
    display: inline;
}

.stat-suffix-lg {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label-lg {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 8px;
}

.factory-tour {
    padding: 100px 0;
}

.factory-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.factory-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

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

.factory-info {
    padding: 24px;
}

.factory-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.factory-info p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.values-section {
    padding: 100px 0;
    background-color: var(--color-surface);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.value-card {
    text-align: center;
    padding: 40px 24px;
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
}

.value-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    border-radius: 50%;
}

.value-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-text);
}

.value-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.value-card p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.certifications-section {
    padding: 100px 0;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
}

.cert-card {
    text-align: center;
    padding: 32px 16px;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
}

.cert-logo {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.cert-card h4 {
    font-size: 14px;
    margin-bottom: 4px;
}

.cert-card p {
    font-size: 12px;
    color: var(--color-text-muted);
}

.why-choose-section {
    padding: 100px 0;
    background-color: var(--color-surface);
}

.why-choose-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.why-choose-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.why-choose-list li {
    display: flex;
    gap: 16px;
}

.list-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    border-radius: 50%;
}

.list-icon svg {
    width: 16px;
    height: 16px;
    color: var(--color-text);
}

.list-content h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.list-content p {
    font-size: 14px;
    color: var(--color-text-muted);
}

.why-choose-image {
    position: relative;
}

.why-choose-image img {
    width: 100%;
    border-radius: var(--radius-lg);
}

.image-overlay-badge {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background-color: var(--color-secondary);
    color: var(--color-text-light);
    padding: 24px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.image-overlay-badge .badge-number {
    display: block;
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.image-overlay-badge .badge-text {
    display: block;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 8px;
}

.global-section {
    padding: 100px 0;
}

.regions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.region-card {
    padding: 32px;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
}

.region-card h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--color-primary);
}

.region-card p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ===== Contact Page ===== */
.contact-page {
    padding: 60px 0 100px;
}

.contact-page-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 64px;
}

.contact-card {
    background-color: var(--color-surface);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.contact-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.contact-card > p {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-method {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.method-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background);
    border-radius: var(--radius-md);
}

.method-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.method-details {
    display: flex;
    flex-direction: column;
}

.method-label {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: 2px;
}

.method-details a,
.method-details span {
    font-size: 15px;
    font-weight: 500;
}

.method-details a:hover {
    color: var(--color-primary);
}

.address-info {
    display: flex;
    gap: 16px;
}

.address-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background);
    border-radius: var(--radius-md);
}

.address-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.address-text p {
    font-size: 14px;
    line-height: 1.6;
}

.hours-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hours-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
}

.hours-row span:last-child {
    color: var(--color-text-muted);
}

.hours-note {
    margin-top: 16px;
    font-size: 13px;
    color: var(--color-primary);
}

.quick-response {
    margin-top: 24px;
}

.response-badge {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background-color: var(--color-secondary);
    border-radius: var(--radius-lg);
    color: var(--color-text-light);
}

.response-badge svg {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.response-badge strong {
    display: block;
    font-size: 16px;
    margin-bottom: 2px;
}

.response-badge span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

.contact-form-section {
    background-color: var(--color-surface);
    padding: 48px;
    border-radius: var(--radius-lg);
}

.form-header {
    margin-bottom: 32px;
}

.form-header h2 {
    font-size: 24px;
    margin-bottom: 8px;
}

.form-header p {
    font-size: 15px;
    color: var(--color-text-muted);
}

.inquiry-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.checkbox-group {
    margin-top: 8px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    cursor: pointer;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.form-disclaimer {
    font-size: 12px;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 8px;
}

.map-section {
    padding: 0 0 100px;
}

.map-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.map-placeholder {
    height: 400px;
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-border) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-content {
    text-align: center;
    padding: 40px;
}

.map-content svg {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.map-content h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.map-content p {
    font-size: 15px;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.map-content .btn {
    margin-top: 20px;
}

.faq-section {
    padding: 80px 0 100px;
    background-color: var(--color-surface);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.faq-item {
    background-color: var(--color-background);
    padding: 32px;
    border-radius: var(--radius-lg);
}

.faq-item h4 {
    font-size: 16px;
    margin-bottom: 12px;
}

.faq-item p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ===== Responsive for New Pages ===== */
@media (max-width: 1024px) {
    .products-layout {
        grid-template-columns: 1fr;
    }
    
    .products-sidebar {
        position: static;
        display: flex;
        flex-wrap: wrap;
        gap: 24px;
    }
    
    .sidebar-section {
        flex: 1;
        min-width: 200px;
        border-bottom: none;
        border-right: 1px solid var(--color-border);
        padding-right: 24px;
        padding-bottom: 0;
        margin-bottom: 0;
    }
    
    .sidebar-section:last-child,
    .sidebar-cta {
        border-right: none;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-gallery {
        position: static;
    }
    
    .specs-grid,
    .packaging-info,
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .product-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-intro-grid,
    .why-choose-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .certifications-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-page-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .products-sidebar {
        flex-direction: column;
    }
    
    .sidebar-section {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        padding-right: 0;
        padding-bottom: 24px;
        margin-bottom: 24px;
    }
    
    .products-toolbar {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .toolbar-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .product-highlights {
        grid-template-columns: 1fr;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .trust-badges {
        flex-direction: column;
        gap: 16px;
    }
    
    .tabs-header {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 1 1 50%;
    }
    
    .tabs-content {
        padding: 24px;
    }
    
    .product-grid-4 {
        grid-template-columns: 1fr;
    }
    
    .factory-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .regions-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-section {
        padding: 32px 24px;
    }
    
    .image-overlay-badge {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: -40px;
        margin-left: 20px;
        display: inline-block;
    }
}