/* Global Styles */
:root {
    --color-primary: #B0B0B0;
    --color-accent: #FFCC00;
    --color-dark: #1A1A1A;
    --color-dark-light: #2A2A2A;
    --color-dark-lighter: #3A3A3A;
    --color-text: #E0E0E0;
    --color-text-muted: #999999;
    --color-white: #FFFFFF;
    --font-primary: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition-base: 0.3s ease;
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-dark);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(176, 176, 176, 0.1);
    transition: var(--transition-base);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #FF9900 100%);
    color: var(--color-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-weight: 900;
    font-size: 18px;
}

.logo-text {
    color: var(--color-white);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    display: block;
    padding: 10px 18px;
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    border-radius: 6px;
    transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent);
    background: rgba(255, 204, 0, 0.1);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition-base);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, #0D0D0D 100%);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 204, 0, 0.05) 0%, transparent 50%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(176, 176, 176, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(176, 176, 176, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 80px 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 204, 0, 0.1);
    border: 1px solid rgba(255, 204, 0, 0.2);
    border-radius: 50px;
    color: var(--color-accent);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--color-white);
}

.hero-title .highlight {
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    line-height: 1.7;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, #FF9900 100%);
    color: var(--color-dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 204, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: rgba(176, 176, 176, 0.1);
    border-color: var(--color-accent);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.hero-content-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
}

.hero-stats {
    display: flex;
    gap: 60px;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 8px;
}

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

.hero-production-image {
    flex: 1;
    min-width: 300px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(176, 176, 176, 0.2);
}

.production-img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-base);
}

.production-img:hover {
    transform: scale(1.02);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--color-text-muted);
    font-size: 12px;
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
    0% { opacity: 0; transform: scaleY(0); }
    50% { opacity: 1; transform: scaleY(1); }
    100% { opacity: 0; transform: scaleY(0); }
}

/* Section Common Styles */
.section {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

.section-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 204, 0, 0.1);
    color: var(--color-accent);
    font-size: 13px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 44px;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 16px;
}

.section-description {
    font-size: 18px;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* About Us */
.about-section {
    background: linear-gradient(180deg, var(--color-dark) 0%, #0D0D0D 100%);
}

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

.about-content {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.about-block {
    padding: 32px;
    background: var(--color-dark-light);
    border-radius: 12px;
    border: 1px solid rgba(176, 176, 176, 0.1);
    transition: var(--transition-base);
}

.about-block:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.block-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(255, 204, 0, 0.2) 0%, rgba(255, 153, 0, 0.1) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.block-icon svg {
    width: 28px;
    height: 28px;
}

.about-block h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
}

.about-block p {
    color: var(--color-text-muted);
    line-height: 1.8;
}

.about-image {
    display: flex;
    flex-direction: column; /* Images stacked vertically */
    justify-content: center;
    align-items: center;
    gap: 20px; /* Controls spacing between images */
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 4/5;
    background: linear-gradient(135deg, var(--color-dark-light) 0%, #151515 100%);
    border-radius: 16px;
    border: 2px dashed rgba(176, 176, 176, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--color-text-muted);
    
}

.placeholder-icon {
    width: 80px;
    height: 80px;
    color: var(--color-primary);
    opacity: 0.3;
}

.placeholder-icon svg {
    width: 100%;
    height: 100%;
}

/* Products */
.products-section {
    background: var(--color-dark-light);
}

.product-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 28px;
    background: transparent;
    border: 1px solid rgba(176, 176, 176, 0.2);
    color: var(--color-text-muted);
    font-size: 15px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-base);
}

.tab-btn:hover,
.tab-btn.active {
    background: rgba(255, 204, 0, 0.1);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.tab-content {
    position: relative;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 32px;
}

.product-card {
    background: var(--color-dark);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(176, 176, 176, 0.1);
    transition: var(--transition-base);
}

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

.product-image {
    height: 220px;
    background: linear-gradient(135deg, var(--color-dark-light) 0%, #151515 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

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

.about-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
    border: 2px solid rgba(176, 176, 176, 0.2);
}

.product-icon svg {
    width: 48px;
    height: 48px;
}

.product-info {
    padding: 32px;
}

.product-info h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
}

.product-info > p {
    color: var(--color-text-muted);
    margin-bottom: 20px;
    line-height: 1.7;
}

.product-specs {
    list-style: none;
    margin-bottom: 24px;
}

.product-specs li {
    padding: 8px 0;
    color: var(--color-text);
    font-size: 14px;
    padding-left: 20px;
    position: relative;
}

.product-specs li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
}

.product-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition-base);
}

.product-link:hover {
    opacity: 0.8;
}

/* Processing Center */
.processing-section {
    background: var(--color-dark);
}

.processing-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.processing-tab-btn {
    padding: 12px 28px;
    background: transparent;
    border: 1px solid rgba(176, 176, 176, 0.2);
    color: var(--color-text-muted);
    font-size: 15px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-base);
}

.processing-tab-btn:hover,
.processing-tab-btn.active {
    background: rgba(255, 204, 0, 0.1);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.processing-tab-content {
    position: relative;
}

.processing-tab-pane {
    display: none;
}

.processing-tab-pane.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

.processing-images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.processing-image-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(176, 176, 176, 0.1);
    transition: var(--transition-base);
}

.processing-image-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}

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

.image-caption {
    padding: 12px;
    background: rgba(26, 26, 26, 0.9);
    color: var(--color-text);
    font-size: 14px;
    text-align: center;
}

.processing-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.processing-text h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 16px;
}

.processing-text p {
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}

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

.capability-list li {
    padding: 8px 0;
    padding-left: 20px;
    color: var(--color-text);
    position: relative;
}

.capability-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
}

.processing-image-preview {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(176, 176, 176, 0.1);
}

.processing-image-preview img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.processing-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.case-item {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(176, 176, 176, 0.1);
    transition: var(--transition-base);
}

.case-item:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}

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

.case-item h4 {
    padding: 16px;
    color: var(--color-white);
    font-size: 18px;
    font-weight: 600;
    background: rgba(26, 26, 26, 0.9);
}

/* Technical Support */
.technical-section {
    background: linear-gradient(180deg, var(--color-dark-light) 0%, var(--color-dark) 100%);
}

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

.technical-card {
    padding: 48px;
    background: var(--color-dark);
    border-radius: 16px;
    border: 1px solid rgba(176, 176, 176, 0.1);
    transition: var(--transition-base);
}

.technical-card:hover {
    border-color: var(--color-accent);
}

.technical-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(255, 204, 0, 0.2) 0%, rgba(255, 153, 0, 0.1) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: 28px;
}

.technical-icon svg {
    width: 32px;
    height: 32px;
}

.technical-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 24px;
}

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

.technical-list li {
    padding: 12px 0;
    padding-left: 28px;
    color: var(--color-text);
    position: relative;
    border-bottom: 1px solid rgba(176, 176, 176, 0.08);
}

.technical-list li:last-child {
    border-bottom: none;
}

.technical-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    width: 10px;
    height: 10px;
    border: 2px solid var(--color-accent);
    border-radius: 2px;
}

/* Contact Us */
.contact-section {
    background: var(--color-dark);
    padding-bottom: 80px;
}

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

.contact-intro {
    font-size: 18px;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

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

.info-item {
    display: flex;
    gap: 20px;
}

.info-icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    background: rgba(255, 204, 0, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
}

.info-icon svg {
    width: 24px;
    height: 24px;
}

.info-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 8px;
}

.info-content p {
    color: var(--color-text-muted);
    font-size: 15px;
    line-height: 1.8;
}

.contact-form-wrapper {
    background: var(--color-dark-light);
    padding: 48px;
    border-radius: 16px;
    border: 1px solid rgba(176, 176, 176, 0.1);
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 10px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--color-dark);
    border: 1px solid rgba(176, 176, 176, 0.2);
    border-radius: 8px;
    color: var(--color-white);
    font-size: 15px;
    font-family: var(--font-primary);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(26, 26, 26, 0.8);
}

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

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--color-dark);
}

/* Footer */
.footer {
    background: #0D0D0D;
    padding: 80px 0 40px;
    border-top: 1px solid rgba(176, 176, 176, 0.1);
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    margin-bottom: 20px;
}

.footer-desc {
    color: var(--color-text-muted);
    line-height: 1.8;
}

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

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

.footer-links li {
    margin-bottom: 12px;
}

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

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid rgba(176, 176, 176, 0.1);
    color: var(--color-text-muted);
    font-size: 14px;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition-base);
}

.footer-legal a:hover {
    color: var(--color-accent);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #FF9900 100%);
    border: none;
    border-radius: 50%;
    color: var(--color-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-base);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 56px;
    }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--color-dark);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
        border-bottom: 1px solid rgba(176, 176, 176, 0.1);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 44px;
    }
    
    .about-grid,
    .contact-wrapper,
    .processing-grid,
    .technical-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        gap: 32px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}