/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header and Navigation */
header {
    background-color: #007acc;
    color: #fff;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo img {
    height: 45px;
    width: auto;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.nav-links li a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: opacity 0.3s ease;
    position: relative;
}

.nav-links li a:hover,
.nav-links li a.active {
    opacity: 0.9;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #fff;
    transition: width 0.3s ease;
}

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

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

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: #fff;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #007acc 0%, #005fa3 100%);
    color: #fff;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="2"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: #fff;
    font-weight: 700;
    letter-spacing: -1px;
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #e6f4ff;
    font-weight: 400;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: #f0f8ff;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: #fff;
    color: #007acc;
}

.btn-primary:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-secondary {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background-color: #fff;
    color: #007acc;
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, #007acc 0%, #005fa3 100%);
    color: #fff;
    padding: 5rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #fff;
}

.page-header p {
    font-size: 1.2rem;
    color: #e6f4ff;
}

.page-header .intro-text {
    max-width: 800px;
    margin: 2rem auto 0;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Sections */
main {
    min-height: calc(100vh - 400px);
}

section {
    padding: 4rem 0;
}

h2 {
    font-size: 2.5rem;
    color: #007acc;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Company Overview */
.company-overview {
    background-color: #f8f9fa;
}

.overview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.overview-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #555;
}

.overview-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.stat-item img {
    height: 60px;
    margin-bottom: 1rem;
}

.stat-item h3 {
    color: #007acc;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.stat-item p {
    color: #666;
    font-size: 0.95rem;
}

/* Business Models */
.business-models {
    background-color: #fff;
}

.model-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.model-card {
    background-color: #f8f9fa;
    padding: 2.5rem;
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
}

.model-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,122,204,0.15);
}

.model-icon img {
    height: 80px;
    margin-bottom: 1.5rem;
}

.model-card h3 {
    color: #007acc;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.model-card p {
    color: #666;
    line-height: 1.7;
}

/* Monetization Section */
.monetization {
    background-color: #f8f9fa;
}

.monetization-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.monetization-item {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.monetization-item:hover {
    box-shadow: 0 4px 12px rgba(0,122,204,0.1);
}

.monetization-item img {
    height: 60px;
    margin-bottom: 1rem;
}

.monetization-item h4 {
    color: #007acc;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.monetization-item p {
    color: #666;
    font-size: 0.95rem;
}

/* Why Choose */
.why-choose {
    background-color: #fff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
}

.feature-item img {
    height: 70px;
    margin-bottom: 1rem;
}

.feature-item h3 {
    color: #007acc;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.feature-item p {
    color: #666;
    font-size: 0.95rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #007acc 0%, #005fa3 100%);
    color: #fff;
    text-align: center;
    padding: 5rem 0;
}

.cta-section h2 {
    color: #fff;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color: #e6f4ff;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: #ccc;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-company h3 {
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-company p {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.footer-contact {
    margin-top: 1rem;
}

.footer-contact p {
    margin-bottom: 0.3rem;
}

.footer-links h4,
.footer-legal h4 {
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-links ul,
.footer-legal ul {
    list-style: none;
}

.footer-links ul li,
.footer-legal ul li {
    margin-bottom: 0.5rem;
}

.footer-links ul li a,
.footer-legal ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover,
.footer-legal ul li a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    color: #999;
    font-size: 0.9rem;
}

/* Business Page Styles */
.business-section {
    background-color: #fff;
}

.business-model-detail {
    margin-bottom: 3rem;
}

.model-detail-card {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 2rem;
    align-items: start;
    padding: 2rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.detail-icon img {
    height: 80px;
}

.detail-content h2 {
    text-align: left;
    margin-bottom: 1rem;
    font-size: 2rem;
}

.detail-content .lead {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.service-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.service-features li {
    padding: 0.5rem 0;
    padding-left: 2rem;
    position: relative;
    color: #555;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #007acc;
    font-weight: bold;
}

.benefits-box {
    background-color: #e6f4ff;
    padding: 1.5rem;
    border-left: 4px solid #007acc;
    border-radius: 4px;
}

.benefits-box h4 {
    color: #007acc;
    margin-bottom: 0.5rem;
}

.benefits-box p {
    color: #555;
}

/* Monetization Detail */
.monetization-detail {
    background-color: #f8f9fa;
}

.monetization-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.mono-card {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.mono-card:hover {
    box-shadow: 0 4px 16px rgba(0,122,204,0.15);
}

.mono-icon img {
    height: 60px;
    margin-bottom: 1rem;
}

.mono-card h3 {
    color: #007acc;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.mono-card > p {
    color: #666;
    margin-bottom: 1rem;
}

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

.mono-card ul li {
    padding: 0.3rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.9rem;
    color: #555;
}

.mono-card ul li::before {
    content: '•';
    color: #007acc;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Compliance Section */
.compliance-section {
    background-color: #fff;
}

.compliance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.compliance-item {
    text-align: center;
    padding: 2rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.compliance-item:hover {
    box-shadow: 0 4px 12px rgba(0,122,204,0.1);
}

.compliance-item img {
    height: 70px;
    margin-bottom: 1rem;
}

.compliance-item h3 {
    color: #007acc;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.compliance-item p {
    color: #666;
    font-size: 0.95rem;
}

/* Team Page Styles */
.company-structure {
    background-color: #f8f9fa;
}

.structure-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.structure-card {
    background-color: #fff;
    padding: 2.5rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.structure-card:hover {
    box-shadow: 0 8px 20px rgba(0,122,204,0.15);
}

.structure-icon img {
    height: 80px;
    margin-bottom: 1.5rem;
}

.structure-card h3 {
    color: #007acc;
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.structure-card > p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.center-responsibilities {
    list-style: none;
    text-align: left;
}

.center-responsibilities li {
    padding: 0.4rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #555;
    font-size: 0.95rem;
}

.center-responsibilities li::before {
    content: '▸';
    color: #007acc;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.team-section {
    background-color: #fff;
}

.team-intro {
    margin-bottom: 3rem;
}

.intro-text {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.intro-text h3 {
    color: #007acc;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.intro-text p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.expertise-areas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.expertise-card {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e0e0e0;
}

.expertise-card img {
    height: 70px;
    margin-bottom: 1rem;
}

.expertise-card h4 {
    color: #007acc;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.expertise-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

.values-section {
    background-color: #f8f9fa;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.value-item {
    text-align: center;
    padding: 2rem;
}

.value-item img {
    height: 70px;
    margin-bottom: 1rem;
}

.value-item h3 {
    color: #007acc;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.value-item p {
    color: #666;
    font-size: 0.95rem;
}

/* Contact Page Styles */
.contact-section {
    background-color: #fff;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.contact-info-card {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.contact-info-card:hover {
    box-shadow: 0 4px 12px rgba(0,122,204,0.1);
}

.info-icon img {
    height: 60px;
    margin-bottom: 1rem;
}

.contact-info-card h3 {
    color: #007acc;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.info-content p {
    margin-bottom: 0.5rem;
    color: #555;
}

.info-content a {
    color: #007acc;
    text-decoration: none;
}

.info-content a:hover {
    text-decoration: underline;
}

.info-content ul {
    list-style: none;
    margin-top: 0.5rem;
}

.info-content ul li {
    padding: 0.3rem 0;
    color: #555;
}

.contact-form-section {
    background-color: #f8f9fa;
}

.form-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.contact-form {
    background-color: #fff;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007acc;
}

.form-note {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e0e0e0;
}

.form-note p {
    color: #666;
    font-size: 0.9rem;
}

.location-section {
    background-color: #fff;
}

.map-container {
    position: relative;
    background-color: #f0f0f0;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 2rem;
}

.location-map {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.location-overlay {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.location-overlay h3 {
    color: #007acc;
    margin-bottom: 0.5rem;
}

.location-overlay p {
    color: #666;
    font-size: 0.95rem;
}

.faq-section {
    background-color: #f8f9fa;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.faq-item {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.faq-item h4 {
    color: #007acc;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.faq-item p {
    color: #666;
    line-height: 1.7;
}

/* Privacy & Terms Pages */
.policy-content {
    background-color: #fff;
}

.policy-section {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e0e0e0;
}

.policy-section:last-child {
    border-bottom: none;
}

.policy-section h2 {
    text-align: left;
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.policy-section h3 {
    color: #007acc;
    margin: 2rem 0 1rem;
    font-size: 1.5rem;
}

.policy-section h4 {
    color: #333;
    margin: 1.5rem 0 0.75rem;
    font-size: 1.2rem;
}

.policy-section p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.policy-section ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.policy-section ul li {
    padding: 0.4rem 0;
    padding-left: 2rem;
    position: relative;
    color: #555;
    line-height: 1.7;
}

.policy-section ul li::before {
    content: '✓';
    color: #007acc;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.policy-section .intro-text {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .overview-stats,
    .model-cards,
    .structure-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid,
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 1rem;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #007acc;
        flex-direction: column;
        padding: 1rem 2rem;
        gap: 1rem;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .overview-content,
    .overview-stats,
    .model-cards,
    .structure-grid,
    .features-grid,
    .values-grid,
    .model-detail-card {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .faq-grid,
    .monetization-cards,
    .compliance-grid,
    .contact-grid,
    .expertise-areas {
        grid-template-columns: 1fr;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .page-header h1 {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero h2 {
        font-size: 1.2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    section {
        padding: 3rem 0;
    }
}