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

:root {
    --primary-color: #FF6B35;
    --secondary-color: #004E89;
    --accent-color: #F77F00;
    --dark-color: #1A1A2E;
    --light-color: #F8F9FA;
    --text-color: #333333;
    --border-color: #E0E0E0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
    padding: 0.5rem 0;
}

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

.lang-btn {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s;
}

.lang-btn:hover {
    background-color: var(--accent-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background-color: #E67300;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border-color: white;
}

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

/* Features Section */
.features {
    padding: 80px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-color);
}

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

.feature-card {
    padding: 2rem;
    background-color: var(--light-color);
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.feature-card p {
    color: var(--text-color);
}

/* Industries Section */
.industries {
    padding: 80px 0;
    background-color: var(--light-color);
}

.industries-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.industry-tag {
    background-color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-weight: 500;
    transition: all 0.3s;
}

.industry-tag:hover {
    background-color: var(--primary-color);
    color: white;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 20px;
}

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

.footer-col h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-col p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.footer-col a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Services Detail */
.services-detail {
    padding: 80px 0;
}

.service-item {
    margin-bottom: 4rem;
    padding: 3rem;
    background-color: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.service-content {
    max-width: 800px;
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-item h2 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.service-item p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-features {
    list-style: none;
    padding-left: 0;
}

.service-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.service-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Company Info */
.company-info {
    padding: 80px 0;
    background-color: white;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.info-content h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.info-content p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.company-card {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
}

.company-card h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.company-details p {
    margin-bottom: 0.5rem;
}

/* Industries Detail */
.industries-detail {
    padding: 80px 0;
    background-color: var(--light-color);
}

.industries-list {
    display: grid;
    gap: 2rem;
}

.industry-item {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.industry-item h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Values Section */
.values {
    padding: 80px 0;
    background-color: white;
}

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

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

.value-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.value-card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h2 {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-icon {
    font-size: 2rem;
}

.contact-item h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

/* Contact Form */
.contact-form-wrapper {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-form-wrapper h2 {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Legal Content */
.legal-content {
    padding: 80px 0;
    background-color: white;
}

.legal-section {
    margin-bottom: 3rem;
}

.legal-section h2 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.legal-section h3 {
    color: var(--text-color);
    margin: 1.5rem 0 1rem;
}

.legal-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.legal-section ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.legal-section li {
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .section-title {
        font-size: 2rem;
    }

    .info-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}