/* ============================================
   Shenzhen Shiya Industrial - Global Styles
   ============================================ */

/* CSS Variables */
:root {
    --color-primary: #0f172a;
    --color-primary-light: #1e293b;
    --color-accent: #3b82f6;
    --color-accent-hover: #2563eb;
    --color-gold: #d4af37;
    --color-background: #ffffff;
    --color-surface: #f8fafc;
    --color-text: #0f172a;
    --color-muted: #64748b;
    --color-border: #e2e8f0;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif;
    --radius: 0.75rem;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);
}

/* Reset & Base */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.6;
    background: var(--color-background);
    -webkit-font-smoothing: antialiased;
}
.container { max-width: 1280px; margin: 0 auto; padding: 0 2rem; }

/* Header */
.site-header {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-top {
    background: var(--color-primary);
    color: white;
    padding: 0.5rem 0;
    font-size: 0.8rem;
}
.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-top a { color: white; text-decoration: none; }
.header-controls { display: flex; gap: 0.75rem; align-items: center; }
.lang-selector, .currency-selector {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    cursor: pointer;
}
.lang-selector option, .currency-selector option { color: var(--color-text); }

.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}
.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: 0.05em;
}
.logo span { color: var(--color-accent); }
.nav-menu { display: flex; gap: 2rem; list-style: none; }
.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}
.nav-menu a:hover { color: var(--color-accent); }
.nav-menu a.active { color: var(--color-accent); }

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}
.menu-toggle svg { width: 24px; height: 24px; color: var(--color-primary); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}
.btn-primary { background: var(--color-accent); color: white; }
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-secondary { background: var(--color-gold); color: var(--color-primary); }
.btn-secondary:hover { background: #c9a227; transform: translateY(-1px); }
.btn-outline {
    background: transparent;
    color: white;
    border: 1.5px solid rgba(255,255,255,0.4);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: white; }
.btn-ghost {
    background: transparent;
    color: var(--color-accent);
    border: 1.5px solid var(--color-accent);
}
.btn-ghost:hover { background: var(--color-accent); color: white; }

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(30,41,59,0.65) 100%);
}
.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero-content { max-width: 600px; }
.hero-product { display: flex; align-items: center; justify-content: center; }
.hero-product img {
    max-width: 100%;
    max-height: 450px;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.3));
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.15);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}
.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.15;
    letter-spacing: -0.02em;
}
.hero h1 .highlight { color: var(--color-gold); }
.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    opacity: 0.9;
    font-weight: 400;
}
.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    opacity: 0.75;
    line-height: 1.7;
    max-width: 600px;
}
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-stats {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 3rem;
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stat h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.25rem;
}
.hero-stat p { font-size: 0.9rem; opacity: 0.7; }

/* Page Hero (Inner Pages) */
.page-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-hero::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(15,23,42,0.9) 0%, rgba(30,41,59,0.7) 100%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 {
    font-size: 2.75rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}
.page-hero p {
    font-size: 1.15rem;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}
.breadcrumb {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    opacity: 0.6;
}
.breadcrumb a { color: white; text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* Trust Bar */
.trust-bar {
    background: var(--color-surface);
    padding: 2rem 0;
    border-bottom: 1px solid var(--color-border);
}
.trust-bar .container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
}
.cert-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-muted);
    font-size: 0.9rem;
    font-weight: 500;
}
.cert-icon {
    width: 32px;
    height: 32px;
    background: var(--color-primary);
    color: white;
    border-radius: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}
.section-label {
    display: inline-block;
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}
.section-header h2 {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.section-header p {
    color: var(--color-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Products Section */
.products {
    padding: 6rem 0;
    background: var(--color-background);
}
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.product-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all 0.3s;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}
.product-image {
    width: 100%;
    height: 280px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 8px;
}
.product-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.3s;
}
.product-info { padding: 1.5rem; }
.product-info h3 {
    font-size: 1.15rem;
    margin-bottom: 0.375rem;
    color: var(--color-primary);
    font-weight: 600;
}
.product-model {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.product-specs {
    font-size: 0.875rem;
    color: var(--color-muted);
    margin-bottom: 1.25rem;
    line-height: 1.5;
}

/* Product Category Title */
.category-title {
    text-align: center;
    font-size: 1.5rem;
    color: var(--color-primary);
    margin: 2rem 0 1.5rem;
    font-weight: 600;
}
.category-title:first-of-type { margin-top: 0; }

/* Advantages Section */
.advantages {
    padding: 6rem 0;
    background: var(--color-surface);
}
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}
.advantage-item {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    transition: all 0.3s;
}
.advantage-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}
.advantage-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}
.advantage-icon svg { width: 28px; height: 28px; color: white; }
.advantage-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: var(--color-primary);
    font-weight: 600;
}
.advantage-item p {
    color: var(--color-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Factory Section */
.factory {
    padding: 6rem 0;
    background: var(--color-background);
}
.factory-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}
.factory-image {
    aspect-ratio: 4/3;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}
.factory-image::before {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 50%;
    background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}
.factory-image span {
    position: absolute;
    bottom: 1rem; left: 1rem; right: 1rem;
    background: rgba(255,255,255,0.95);
    color: var(--color-primary);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    z-index: 1;
}

/* Exhibition Section */
.exhibition {
    padding: 6rem 0;
    background: var(--color-surface);
}
.exhibition-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.exhibition-image {
    height: 350px;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transition: transform 0.3s;
}
.exhibition-image:hover { transform: scale(1.03); }
.exhibition-image span {
    position: absolute;
    bottom: 1rem; left: 1rem; right: 1rem;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid rgba(255,255,255,0.2);
}

/* FAQ Section */
.faq {
    padding: 6rem 0;
    background: var(--color-background);
}
.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    overflow: hidden;
    background: white;
}
.faq-question {
    width: 100%;
    padding: 1.25rem 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}
.faq-question:hover { background: var(--color-surface); }
.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-accent);
    transition: transform 0.2s;
}
.faq-item.active .faq-question::after { transform: rotate(45deg); }
.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s;
}
.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.25rem;
    max-height: 200px;
}
.faq-answer p {
    color: var(--color-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}
.faq-toggle { text-align: center; margin-top: 2rem; }
.faq-item.hidden { display: none; }

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta::before {
    content: '';
    position: absolute;
    top: -50%; right: -10%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(59,130,246,0.2) 0%, transparent 70%);
    border-radius: 50%;
}
.cta-content { position: relative; z-index: 1; }
.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}
.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.85;
}

/* Company Intro Section */
.company-intro {
    padding: 5rem 0;
    background: white;
}
.company-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.company-intro-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}
.company-intro-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}
.company-intro-content h2 {
    font-size: 2.25rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}
.company-intro-content .subtitle {
    font-size: 1.1rem;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 1.5rem;
}
.company-intro-content p {
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 1rem;
}
.company-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}
.company-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--color-surface);
    border-radius: 8px;
}
.company-feature svg {
    width: 24px; height: 24px;
    color: var(--color-accent);
    flex-shrink: 0;
}
.company-feature span {
    font-size: 0.95rem;
    color: var(--color-primary);
    font-weight: 500;
}

/* Footer */
.site-footer {
    background: var(--color-primary);
    color: white;
    padding: 4rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-section h4 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
    color: var(--color-gold);
    font-weight: 600;
}
.footer-section ul { list-style: none; }
.footer-section li { margin-bottom: 0.5rem; }
.footer-section a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}
.footer-section a:hover { color: white; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
}
.social-links { display: flex; gap: 0.75rem; margin-top: 1rem; }
.social-links a {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.1);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}
.social-links a:hover { background: rgba(255,255,255,0.2); }

/* ============================================
   Additional Page Styles
   ============================================ */

/* About Page Styles */
.about-content { padding: 6rem 0; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}
.about-grid img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius);
}
.about-text h3 {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}
.about-text p {
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* Timeline */
.timeline { padding: 4rem 0; }
.timeline-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.timeline-item {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--color-surface);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}
.timeline-year {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}
.timeline-item h4 {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}
.timeline-item p {
    font-size: 0.9rem;
    color: var(--color-muted);
}

/* Stats Grid */
.stats-section {
    padding: 4rem 0;
    background: var(--color-primary);
    color: white;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}
.stat-item h3 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}
.stat-item p {
    font-size: 0.95rem;
    opacity: 0.8;
}

/* Certifications */
.certifications { padding: 6rem 0; background: var(--color-surface); }
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
}
.cert-card {
    background: white;
    padding: 2rem 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: all 0.3s;
}
.cert-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}
.cert-card .cert-badge {
    width: 64px; height: 64px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 0.9rem;
    font-weight: 700;
}
.cert-card h4 {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}
.cert-card p {
    font-size: 0.85rem;
    color: var(--color-muted);
}

/* Solutions Page Styles */
.solutions-content { padding: 6rem 0; }
.solution-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    padding: 3rem;
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}
.solution-card:nth-child(even) { direction: rtl; }
.solution-card:nth-child(even) > * { direction: ltr; }
.solution-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius);
}
.solution-info h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}
.solution-info p {
    color: var(--color-muted);
    line-height: 1.7;
    margin-bottom: 1rem;
}
.solution-info ul {
    list-style: none;
    margin-bottom: 1.5rem;
}
.solution-info li {
    padding: 0.4rem 0;
    color: var(--color-muted);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.solution-info li::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: 700;
}

/* Cases Page Styles */
.cases-content { padding: 6rem 0; }
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}
.case-card {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: white;
    transition: all 0.3s;
}
.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}
.case-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}
.case-card-body { padding: 1.5rem; }
.case-card-body h3 {
    font-size: 1.15rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.case-card-body p {
    color: var(--color-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}
.case-tag {
    display: inline-block;
    background: var(--color-surface);
    color: var(--color-accent);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

/* News Page Styles */
.news-content { padding: 6rem 0; }
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}
.news-card {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: white;
    transition: all 0.3s;
}
.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}
.news-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}
.news-card-body { padding: 1.5rem; }
.news-date {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 0.5rem;
}
.news-card-body h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
    line-height: 1.4;
}
.news-card-body p {
    color: var(--color-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}
.news-category {
    display: inline-block;
    background: var(--color-surface);
    color: var(--color-muted);
    padding: 0.2rem 0.6rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: 1rem;
}

/* Contact Page Styles */
.contact-content { padding: 6rem 0; }
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}
.contact-info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.contact-info-card {
    padding: 1.5rem;
    background: var(--color-surface);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}
.contact-info-card .icon {
    width: 40px; height: 40px;
    background: var(--color-accent);
    color: white;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}
.contact-info-card h4 {
    font-size: 0.95rem;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}
.contact-info-card p {
    font-size: 0.875rem;
    color: var(--color-muted);
}
.map-container {
    width: 100%;
    height: 300px;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-muted);
}

/* Contact Form */
.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}
.contact-form h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-weight: 700;
}
.contact-form > p {
    color: var(--color-muted);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 0.4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    font-size: 0.95rem;
    font-family: var(--font-body);
    transition: border-color 0.2s;
    background: white;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* Product Detail Page */
.product-detail { padding: 4rem 0; }
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}
.product-gallery {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.product-gallery-main {
    width: 100%;
    aspect-ratio: 1;
    background: #f5f5f5;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.product-gallery-main img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}
.product-gallery-thumbs {
    display: flex;
    gap: 0.75rem;
}
.product-gallery-thumbs .thumb {
    width: 80px; height: 80px;
    background: #f5f5f5;
    border-radius: 0.5rem;
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    transition: border-color 0.2s;
}
.product-gallery-thumbs .thumb:hover,
.product-gallery-thumbs .thumb.active {
    border-color: var(--color-accent);
}
.product-gallery-thumbs .thumb img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.product-detail-info h1 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-weight: 700;
}
.product-detail-info .model {
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}
.product-detail-info .desc {
    color: var(--color-muted);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}
.product-highlights {
    margin-bottom: 2rem;
}
.product-highlights li {
    padding: 0.5rem 0;
    color: var(--color-text);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
}
.product-highlights li::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: 700;
}
.product-detail-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* Specs Table */
.specs-section { padding: 4rem 0; }
.specs-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
}
.specs-table tr:nth-child(even) { background: var(--color-surface); }
.specs-table td {
    padding: 1rem 1.5rem;
    font-size: 0.95rem;
}
.specs-table td:first-child {
    font-weight: 600;
    color: var(--color-primary);
    width: 35%;
}
.specs-table td:last-child { color: var(--color-muted); }

/* Inquiry Form in Product Detail */
.inquiry-section {
    padding: 4rem 0;
    background: var(--color-surface);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero h1 { font-size: 2.75rem; }
    .hero-layout { grid-template-columns: 1fr; gap: 2rem; }
    .hero-product { display: none; }
    .exhibition-grid { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
    .solution-card { grid-template-columns: 1fr; gap: 2rem; padding: 2rem; }
    .solution-card:nth-child(even) { direction: ltr; }
    .product-detail-grid { grid-template-columns: 1fr; gap: 2rem; }
    .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
    .container { padding: 0 1rem; }
    .hero { padding: 4rem 0; }
    .hero h1 { font-size: 2rem; }
    .hero-stats { flex-wrap: wrap; gap: 2rem; }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem 2rem;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
    }
    .nav-menu.active { display: flex; }
    .menu-toggle { display: block; }
    .factory-grid { grid-template-columns: 1fr; }
    .exhibition-grid { grid-template-columns: 1fr; }
    .section-header h2 { font-size: 2rem; }
    .header-top .container { flex-direction: column; gap: 0.5rem; }
    .company-intro-grid { grid-template-columns: 1fr; gap: 2rem; }
    .company-features { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-info-cards { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .page-hero h1 { font-size: 2rem; }
    .timeline-grid { grid-template-columns: repeat(2, 1fr); }
    .product-detail-buttons { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}