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

:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --gradient-1: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-2: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

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

.navbar {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 8px;
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.lang-toggle {
    background: var(--bg-light);
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
}

.lang-toggle:hover {
    background: var(--primary-color);
    color: white;
}

.hero {
    background: var(--gradient-1);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

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

.btn {
    padding: 12px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
}

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

.hero-image {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    width: 200px;
    height: 150px;
    background: rgba(255, 255, 255, 0.95);
    top: 0;
    left: 0;
}

.card-2 {
    width: 180px;
    height: 180px;
    background: rgba(255, 255, 255, 0.9);
    top: 100px;
    right: 50px;
    animation-delay: 2s;
}

.card-3 {
    width: 160px;
    height: 120px;
    background: rgba(255, 255, 255, 0.85);
    bottom: 0;
    left: 100px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.features {
    padding: 80px 0;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

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

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

.industries {
    padding: 80px 0;
}

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

.industry-tag {
    background: var(--bg-light);
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 500;
    color: var(--text-dark);
    transition: all 0.3s;
}

.industry-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.cta {
    background: var(--gradient-2);
    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;
    opacity: 0.95;
}

.footer {
    background: var(--text-dark);
    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;
    font-size: 1.125rem;
}

.footer-col p {
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

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

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    opacity: 0.7;
}

.page-header {
    background: var(--gradient-1);
    color: white;
    padding: 80px 0;
    text-align: center;
}

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

.page-header p {
    font-size: 1.25rem;
    opacity: 0.95;
}

.services-detail {
    padding: 80px 0;
}

.service-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.service-item.reverse {
    direction: rtl;
}

.service-item.reverse .service-content {
    direction: ltr;
}

.service-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-color);
    opacity: 0.2;
    margin-bottom: 1rem;
}

.service-item h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-item p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 8px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-light);
}

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

.service-visual {
    height: 300px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.visual-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.visual-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.visual-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.visual-4 {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.about-content {
    padding: 80px 0;
}

.about-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.about-intro h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-intro p {
    font-size: 1.125rem;
    color: var(--text-light);
}

.company-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 60px;
}

.info-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
}

.info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

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

.info-list li {
    padding: 8px 0;
    color: var(--text-light);
}

.mission-vision {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 60px;
}

.mv-card {
    background: var(--gradient-1);
    color: white;
    padding: 3rem;
    border-radius: 12px;
}

.mv-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.values {
    text-align: center;
}

.values h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.value-item {
    padding: 2rem;
}

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

.value-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.value-item p {
    color: var(--text-light);
}

.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

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

.contact-item h4 {
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form-wrapper {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.legal-content {
    padding: 60px 0;
}

.legal-text {
    max-width: 900px;
    margin: 0 auto;
}

.legal-text h2 {
    font-size: 1.75rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.legal-text h3 {
    font-size: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.legal-text p {
    margin-bottom: 1rem;
    color: var(--text-light);
    line-height: 1.8;
}

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

.legal-text li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero .container,
    .service-item,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .service-item.reverse {
        direction: ltr;
    }
}