/* ===================================
   CSS Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #4a90e2;
    --secondary-blue: #5ca8e8;
    --dark-blue: #2c5f8d;
    --light-blue: #e8f4f8;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --font-sans: 'Noto Sans SC', 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

ul, ol {
    list-style: none;
}

/* ===================================
   Container & Layout
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

/* ===================================
   Navigation
   =================================== */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    text-align: left;
}

.logo h2 {
    font-size: 1.3rem;
    color: var(--dark-blue);
    font-weight: 700;
    margin-bottom: 2px;
    text-align: left;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--gray-600);
    font-weight: 400;
    text-align: justify;
    width: 100%;
    display: block;
    text-align-last: justify;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-800);
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 12px;
    right: 12px;
    height: 2px;
    background: var(--primary-blue);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.translate-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--light-blue);
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dark-blue);
    transition: all 0.3s ease;
}

.translate-btn:hover {
    background: var(--secondary-blue);
    color: var(--white);
}

.lang-icon {
    font-size: 1.1rem;
}

.arrow {
    font-size: 0.7rem;
    transition: transform 0.3s ease;
}

.translate-btn:hover .arrow {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    min-width: 140px;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

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

.lang-dropdown li {
    padding: 10px 16px;
    cursor: pointer;
    transition: background 0.2s ease;
    font-size: 0.9rem;
}

.lang-dropdown li:hover {
    background: var(--light-blue);
}

.hidden {
    display: none;
}

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

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark-blue);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===================================
   Hero Section
   =================================== */
#hero {
    margin-top: 80px;
    min-height: 600px;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    display: flex;
    align-items: center;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 20px;
    line-height: 1.2;
    text-align: center;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--gray-600);
    margin-bottom: 40px;
    text-align: center;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
    text-align: center;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--gray-600);
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.15;
    z-index: 0;
}

/* ===================================
   Content Sections
   =================================== */
.content-section {
    padding: 100px 0;
    position: relative;
}

.content-section.alternate-bg {
    background: var(--gray-50);
}

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

.section-number {
    display: inline-block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--light-blue);
    margin-bottom: 10px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
}

/* ===================================
   Animation Classes
   =================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Content Components
   =================================== */
.content-left h3,
.content-right h3 {
    font-size: 1.8rem;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.content-left p,
.content-right p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--gray-700);
}

/* Tech Specs */
.tech-specs,
.specifications,
.tech-highlights {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-top: 30px;
}

.tech-specs h4,
.specifications h4,
.tech-highlights h4 {
    font-size: 1.2rem;
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.tech-specs ul,
.tech-highlights ul {
    list-style: none;
}

.tech-specs ul li,
.tech-highlights ul li {
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-200);
}

.tech-specs ul li:last-child,
.tech-highlights ul li:last-child {
    border-bottom: none;
}

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

.spec-table tr {
    border-bottom: 1px solid var(--gray-200);
}

.spec-table td {
    padding: 12px 8px;
}

.spec-table td:first-child {
    font-weight: 600;
    color: var(--dark-blue);
    width: 40%;
}

/* Advantages Grid */
.advantages {
    margin-top: 30px;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 15px;
}

.advantage-card {
    background: var(--light-blue);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
}

.advantage-card .icon {
    font-size: 2rem;
    margin-bottom: 10px;
    display: block;
}

/* Image Container */
.image-container {
    margin-bottom: 30px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    padding: 20px;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.image-container img {
    max-width: 100%;
    max-height: 250px;
    object-fit: contain;
    margin-bottom: 15px;
}

.image-caption,
.chart-caption {
    text-align: center;
    font-size: 0.9rem;
    color: var(--gray-600);
    margin-top: 10px;
    font-style: italic;
}

/* Chart Container */
.chart-container {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-top: 30px;
    min-height: 400px;
    width: 100%;
}

.chart-container canvas {
    max-width: 100% !important;
    max-height: 100% !important;
}

/* Process Flow */
.process-flow {
    margin-top: 60px;
}

.flow-diagram {
    margin: 30px 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.flow-description {
    text-align: center;
    font-size: 1.05rem;
    color: var(--gray-700);
    padding: 20px;
    background: var(--light-blue);
    border-radius: 8px;
}

/* Case Studies */
.case-studies {
    margin-top: 60px;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.case-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

.case-card h4 {
    padding: 20px 20px 10px;
    font-size: 1.1rem;
    color: var(--dark-blue);
}

.case-card p {
    padding: 0 20px 20px;
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* Process Steps */
.process-steps {
    margin-top: 60px;
}

.steps-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 40px;
    flex-wrap: wrap;
}

.step-card {
    background: var(--white);
    padding: 30px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    flex: 1;
    min-width: 180px;
    position: relative;
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 15px;
}

.step-card h4 {
    font-size: 1.1rem;
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.step-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.step-arrow {
    font-size: 2rem;
    color: var(--primary-blue);
    margin: 0 10px;
}

/* Applications */
.applications {
    margin-top: 60px;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.app-card {
    background: var(--light-blue);
    padding: 30px 20px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
}

.app-card:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-5px);
}

.app-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    display: block;
}

.app-card h4 {
    font-size: 1rem;
}

/* Hydrogen Section Tabs */
.category-tabs {
    display: flex;
    gap: 15px;
    margin: 30px 0;
    border-bottom: 2px solid var(--gray-200);
}

.tab-btn {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-600);
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.tab-content {
    display: none;
    padding: 40px 0;
}

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

/* Project Grid */
.project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.project-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

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

.project-info {
    padding: 20px;
}

.project-info h5 {
    font-size: 1.1rem;
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.project-info p {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin-bottom: 10px;
}

.project-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--light-blue);
    color: var(--dark-blue);
    border-radius: 4px;
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.project-specs {
    list-style: disc;
    padding-left: 20px;
}

.project-specs li {
    font-size: 0.85rem;
    color: var(--gray-700);
    margin-bottom: 5px;
}

/* Production Range */
.production-range {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.range-card {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.range-card h5 {
    font-size: 1.2rem;
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.range-card p {
    font-size: 0.9rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-weight: 600;
}

.range-card ul {
    list-style: none;
}

.range-card li {
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.9rem;
}

.range-card li:last-child {
    border-bottom: none;
}

/* International Projects */
.international-projects {
    margin-top: 60px;
}

.intl-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.intl-card {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.intl-card:hover {
    transform: translateY(-5px);
}

.country-flag {
    font-size: 3rem;
    display: block;
    margin-bottom: 15px;
}

.intl-card h4 {
    font-size: 1rem;
    color: var(--dark-blue);
    margin-bottom: 8px;
}

.intl-card p {
    font-size: 0.85rem;
    color: var(--gray-600);
}

/* Guanidine Section */
.guanidine-overview {
    margin-bottom: 60px;
}

.tech-provider {
    text-align: center;
}

.provider-card {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    max-width: 900px;
    margin: 20px auto 0;
}

.provider-card h4 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.provider-card p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: 25px;
}

.provider-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    text-align: left;
}

.provider-highlights li {
    padding: 12px;
    background: var(--light-blue);
    border-radius: 6px;
    font-size: 0.95rem;
}

.process-info {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.reaction-equation {
    background: var(--gray-50);
    padding: 20px;
    border-radius: 6px;
    margin: 20px 0;
    text-align: center;
}

.reaction-equation code {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: var(--dark-blue);
    display: block;
    margin-top: 10px;
}

.process-steps-list {
    list-style: decimal;
    padding-left: 25px;
    margin: 20px 0;
}

.process-steps-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.95rem;
}

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

/* Investment Summary */
.investment-summary {
    margin-top: 60px;
}

.investment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.invest-card {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.invest-card:hover {
    transform: translateY(-5px);
}

.invest-card h4 {
    font-size: 1rem;
    color: var(--gray-700);
    margin-bottom: 15px;
}

.invest-amount {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.total-investment {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    padding: 40px;
    border-radius: 8px;
    text-align: center;
    margin: 40px 0;
}

.total-investment p {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.total-investment h2 {
    font-size: 3rem;
    font-weight: 700;
    margin: 15px 0;
}

.investment-note {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Case Study Highlight */
.case-study-highlight {
    margin-top: 60px;
}

.highlight-card {
    display: flex;
    gap: 40px;
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    align-items: center;
}

.highlight-card img {
    width: 400px;
    border-radius: 8px;
}

.highlight-content h4 {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 20px;
}

.highlight-content ul {
    list-style: none;
}

.highlight-content li {
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
    font-size: 1.05rem;
}

.highlight-content li:last-child {
    border-bottom: none;
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--success);
    color: var(--white);
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Process Package Categories */
.process-categories {
    margin-top: 60px;
}

.category-section {
    margin-bottom: 50px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom:25px;
padding-bottom: 15px;
border-bottom: 3px solid var(--primary-blue);
}.category-icon {
font-size: 2.5rem;
}.category-header h4 {
font-size: 1.8rem;
color: var(--dark-blue);
}.category-content {
padding: 30px;
background: var(--white);
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}.subcategory {
margin-bottom: 30px;
}.subcategory:last-child {
margin-bottom: 0;
}.subcategory h5 {
font-size: 1.2rem;
color: var(--dark-blue);
margin-bottom: 15px;
font-weight: 600;
}.product-tags {
display: flex;
flex-wrap: wrap;
gap: 10px;
}.tag {
padding: 8px 16px;
background: var(--light-blue);
color: var(--dark-blue);
border-radius: 20px;
font-size: 0.9rem;
font-weight: 500;
transition: all 0.3s ease;
}.tag:hover {
background: var(--primary-blue);
color: var(--white);
transform: translateY(-2px);
}/* Global Presence */
.global-presence {
margin-top: 60px;
}.global-content {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 50px;
align-items: center;
margin-top: 30px;
}.global-text p {
font-size: 1.05rem;
line-height: 1.8;
color: var(--gray-700);
margin-bottom: 30px;
}.global-stats {
display: flex;
gap: 50px;
}.global-stat {
text-align: center;
}.global-stat .stat-number {
display: block;
font-size: 2.5rem;
font-weight: 700;
color: var(--primary-blue);
margin-bottom: 8px;
}.global-stat .stat-label {
font-size: 1rem;
color: var(--gray-600);
}.global-map img {
border-radius: 8px;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}/* Service Features */
.service-features {
margin-top: 60px;
}.features-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 30px;
margin-top: 40px;
}.feature-card {
background: var(--white);
padding: 35px 25px;
border-radius: 8px;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
text-align: center;
transition: all 0.3s ease;
}.feature-card:hover {
transform: translateY(-10px);
box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}.feature-icon {
font-size: 3rem;
margin-bottom: 20px;
}.feature-card h4 {
font-size: 1.2rem;
color: var(--dark-blue);
margin-bottom: 15px;
}.feature-card p {
font-size: 0.95rem;
color: var(--gray-600);
line-height: 1.6;
}/* Qualifications */
.qualifications {
margin-top: 60px;
}.qual-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 30px;
margin-top: 40px;
}.qual-card {
background: var(--white);
padding: 20px;
border-radius: 8px;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
text-align: center;
transition: transform 0.3s ease;
}.qual-card:hover {
transform: translateY(-5px);
}.qual-card img {
width: 100%;
height: 200px;
object-fit: contain;
margin-bottom: 15px;
}.qual-card p {
font-size: 0.95rem;
color: var(--gray-700);
font-weight: 500;
}/* ===================================
Contact Section
=================================== */
.contact-section {
background: linear-gradient(135deg, var(--dark-blue), var(--primary-blue));
color: var(--white);
padding: 80px 0;
}.contact-content h2 {
font-size: 2.5rem;
text-align: center;
margin-bottom: 50px;
}.contact-info {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 40px;
max-width: 1000px;
margin: 0 auto;
}.contact-item {
display: flex;
gap: 20px;
align-items: flex-start;
}.contact-icon {
font-size: 2.5rem;
flex-shrink: 0;
}.contact-item h4 {
font-size: 1.3rem;
margin-bottom: 10px;
font-weight: 600;
}.contact-item p {
font-size: 1rem;
line-height: 1.8;
opacity: 0.95;
}.address-en {
font-size: 0.9rem;
margin-top: 5px;
opacity: 0.8;
}/* ===================================
Footer
=================================== */
footer {
background: var(--gray-900);
color: var(--white);
padding: 50px 0 30px;
}.footer-content {
display: flex;
justify-content: space-between;
align-items: flex-start;
margin-bottom: 40px;
}.footer-left h3 {
font-size: 1.5rem;
margin-bottom: 8px;
}.footer-subtitle {
font-size: 0.9rem;
opacity: 0.7;
margin-bottom: 15px;
}.footer-slogan {
font-size: 1rem;
opacity: 0.9;
}.footer-links {
display: flex;
gap: 25px;
}.footer-links a {
font-size: 0.95rem;
opacity: 0.8;
transition: opacity 0.3s ease;
}.footer-links a:hover {
opacity: 1;
}.footer-bottom {
text-align: center;
padding-top: 30px;
border-top: 1px solid rgba(255, 255, 255, 0.1);
}.footer-bottom p {
font-size: 0.9rem;
opacity: 0.7;
}/* ===================================
Back to Top Button
=================================== */
.back-to-top {
position: fixed;
bottom: 30px;
right: 30px;
width: 50px;
height: 50px;
background: var(--primary-blue);
color: var(--white);
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
font-size: 1.5rem;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
cursor: pointer;
opacity: 0;
visibility: hidden;
transition: all 0.3s ease;
z-index: 999;
}.back-to-top.visible {
opacity: 1;
visibility: visible;
}.back-to-top:hover {
background: var(--dark-blue);
transform: translateY(-5px);
}/* ===================================
Lazy Loading
=================================== */
img.lazy-load {
opacity: 0;
transition: opacity 0.5s ease;
}img.lazy-load.loaded {
opacity: 1;
}/* ===================================
Responsive Design
=================================== */
@media (max-width: 1024px) {
.two-column-layout {
grid-template-columns: 1fr;
gap: 30px;
}.hero-title {
    font-size: 2.5rem;
}.hero-subtitle {
    font-size: 1.1rem;
}.hero-stats {
    gap: 40px;
}.case-grid,
.project-grid {
    grid-template-columns: repeat(2, 1fr);
}.app-grid,
.intl-grid {
    grid-template-columns: repeat(2, 1fr);
}.production-range {
    grid-template-columns: 1fr;
}.investment-grid {
    grid-template-columns: repeat(2, 1fr);
}.features-grid,
.qual-grid {
    grid-template-columns: repeat(2, 1fr);
}.global-content {
    grid-template-columns: 1fr;
}.contact-info {
    grid-template-columns: 1fr;
}.highlight-card {
    flex-direction: column;
}.highlight-card img {
    width: 100%;
}
}@media (max-width: 768px) {
.nav-links {
display: none;
position: absolute;
top: 80px;
left: 0;
right: 0;
background: var(--white);
flex-direction: column;
padding: 20px;
box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
gap: 10px;
}.nav-links.active {
    display: flex;
}.mobile-menu-toggle {
    display: flex;
}.hero-title {
    font-size: 2rem;
}.hero-subtitle {
    font-size: 1rem;
}.hero-stats {
    flex-direction: column;
    gap: 25px;
}.section-header h2 {
    font-size: 2rem;
}.section-subtitle {
    font-size: 1rem;
}.case-grid,
.project-grid,
.app-grid,
.intl-grid,
.investment-grid,
.features-grid,
.qual-grid {
    grid-template-columns: 1fr;
}.advantage-grid {
    grid-template-columns: 1fr;
}.steps-container {
    flex-direction: column;
}.step-arrow {
    transform: rotate(90deg);
    margin: 10px 0;
}.footer-content {
    flex-direction: column;
    gap: 30px;
}.footer-links {
    flex-direction: column;
    gap: 10px;
}.provider-highlights {
    grid-template-columns: 1fr;
}.global-stats {
    flex-direction: column;
    gap: 20px;
}
}@media (max-width: 480px) {
.hero-title {
font-size: 1.6rem;
}.stat-number {
    font-size: 2rem;
}.section-header h2 {
    font-size: 1.6rem;
}.contact-content h2 {
    font-size: 2rem;
}.back-to-top {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 20px;
}
}/* ===================================
Print Styles
=================================== */
@media print {
#main-nav,
.back-to-top,
.language-selector {
display: none;
}.content-section {
    page-break-inside: avoid;
}
}
/* ===================================
   Chart Container Enhancements & Data Tables
   =================================== */
.chart-container {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-top: 30px;
    min-height: 300px;
}

.chart-container h4 {
    color: var(--dark-blue);
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-align: center;
}

.data-table {
    width: 100%;
    overflow-x: auto;
    margin: 20px 0;
}

.data-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th, 
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.data-table th {
    background-color: var(--gray-50);
    font-weight: 600;
    color: var(--dark-blue);
}

.data-table tbody tr:hover {
    background-color: var(--gray-50);
}

.data-table tbody tr:nth-child(even) {
    background-color: var(--gray-50);
}

/* Responsive table styles */
@media (max-width: 768px) {
    .data-table th, 
    .data-table td {
        padding: 8px 10px;
        font-size: 0.85rem;
    }
    
    .chart-container h4 {
        font-size: 1.1rem;
    }
}

.chart-container canvas {
    max-height: 400px;
    width: 100% !important;
    height: auto !important;
}

/* Investment breakdown specific styling */
.investment-breakdown {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-top: 30px;
}

.investment-breakdown h4 {
    font-size: 1.2rem;
    color: var(--dark-blue);
    margin-bottom: 20px;
    text-align: center;
}

.investment-breakdown canvas {
    max-height: 350px;
}

/* Responsive chart adjustments */
@media (max-width: 768px) {
    .chart-container {
        padding: 15px;
    }
    
    .chart-container canvas {
        max-height: 300px;
    }
    
    .investment-breakdown canvas {
        max-height: 280px;
    }
}