:root {
    --color-primary: #0066ff;
    --color-primary-dark: #0052cc;
    --color-primary-light: #3385ff;
    --color-secondary: #ffffff;
    --color-accent: #1a73e8;
    --color-text: #2c3e50;
    --color-text-light: #5a6c7d;
    --color-text-lighter: #8492a6;
    --color-background: #ffffff;
    --color-background-dark: #0a1628;
    --color-background-gray: #f6f8fa;
    --color-background-blue: #f0f6ff;
    --color-border: #e1e8ed;
    --color-border-light: #f1f3f4;
    
    --font-family-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    --spacing-xxxl: 6rem;
    
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
    --shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.nav-brand a:hover {
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

.nav-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    margin: 2px 0;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--color-background);
        flex-direction: column;
        align-items: center;
        justify-content: start;
        padding: var(--spacing-xl) 0;
        transition: var(--transition);
        gap: var(--spacing-md);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-container {
        padding: 0 var(--spacing-sm);
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    min-height: 48px;
}

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

.btn-primary:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
}

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

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

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    background: var(--color-text);
    color: var(--color-background);
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-lg);
    }
}

main {
    margin-top: 70px;
}

.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-background-dark) 0%, var(--color-primary-dark) 100%);
    color: var(--color-secondary);
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxxl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-animation {
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    position: relative;
    animation: float 6s ease-in-out infinite;
    box-shadow: 0 20px 60px rgba(0, 102, 255, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.hero-animation::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), rgba(0, 102, 255, 0.1));
    border-radius: 25px;
    animation: pulse 4s ease-in-out infinite;
    z-index: -1;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(1deg); }
    66% { transform: translateY(10px) rotate(-1deg); }
}

@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-animation {
        width: 300px;
        height: 300px;
    }
}

.services-preview {
    padding: var(--spacing-xxxl) 0;
    background: var(--color-background-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.service-card {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--color-border-light);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 40px rgba(0, 102, 255, 0.15);
    border-color: var(--color-primary-light);
    background: var(--color-background-blue);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.6;
}

.company-intro {
    padding: var(--spacing-xxxl) 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxxl);
    align-items: center;
}

.intro-text h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.intro-text p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.intro-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-grid {
    width: 300px;
    height: 300px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    position: relative;
}

.tech-grid::before {
    content: '🧠💻📊🔮⚡🚀🎯📈💡';
    grid-column: 1 / 4;
    grid-row: 1 / 4;
    background: linear-gradient(135deg, var(--color-background-blue), rgba(0, 102, 255, 0.1));
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    line-height: 1;
    letter-spacing: 0.2rem;
    flex-wrap: wrap;
    padding: var(--spacing-md);
    border: 2px solid rgba(0, 102, 255, 0.2);
    animation: techFloat 8s ease-in-out infinite;
}

@keyframes techFloat {
    0%, 100% { transform: translateY(0px) scale(1); }
    25% { transform: translateY(-10px) scale(1.05); }
    75% { transform: translateY(5px) scale(0.95); }
}

@media (max-width: 768px) {
    .intro-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .intro-text h2 {
        font-size: 2rem;
    }
    
    .intro-text p {
        font-size: 1rem;
    }
}

.cta {
    padding: var(--spacing-xxxl) 0;
    background: var(--color-background-dark);
    color: var(--color-secondary);
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

@media (max-width: 768px) {
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-content p {
        font-size: 1.125rem;
    }
}

.footer {
    background: var(--color-background-dark);
    color: var(--color-secondary);
    padding: var(--spacing-xxxl) 0 var(--spacing-lg) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xxxl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    opacity: 0.8;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--color-secondary);
}

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

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

.page-hero {
    background: linear-gradient(135deg, var(--color-background-dark) 0%, var(--color-primary-dark) 100%);
    color: var(--color-secondary);
    padding: var(--spacing-xxxl) 0;
    text-align: center;
}

.page-hero-content h1 {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

.page-hero-content p {
    font-size: 1.25rem;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .page-hero-content h1 {
        font-size: 2.5rem;
    }
    
    .page-hero-content p {
        font-size: 1.125rem;
    }
}

.services-detail {
    padding: var(--spacing-xxxl) 0;
}

.service-item {
    margin-bottom: var(--spacing-xxxl);
}

.service-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxxl);
    align-items: center;
}

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

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

.service-text h2 {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.service-text p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

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

.feature-list li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.service-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.service-animation {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--color-background-blue), rgba(0, 102, 255, 0.1));
    border: 2px solid rgba(0, 102, 255, 0.2);
    border-radius: var(--border-radius-lg);
    animation: float 3s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.1);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@media (max-width: 768px) {
    .service-content,
    .service-item.reverse .service-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
        direction: ltr;
    }
    
    .service-text h2 {
        font-size: 1.75rem;
    }
    
    .service-text p {
        font-size: 1rem;
    }
    
    .service-animation {
        width: 250px;
        height: 250px;
    }
}

.process {
    padding: var(--spacing-xxxl) 0;
    background: var(--color-background-gray);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.process-step {
    text-align: center;
    padding: var(--spacing-lg);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: var(--color-secondary);
    border-radius: 50%;
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

.process-step h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.process-step p {
    color: var(--color-text-light);
    line-height: 1.6;
}

.cases {
    padding: var(--spacing-xxxl) 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.case-card {
    background: var(--color-background);
    border: 1px solid var(--color-border-light);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.case-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-accent));
    color: var(--color-secondary);
}

.case-content {
    padding: var(--spacing-xl);
}

.case-category {
    display: inline-block;
    background: rgba(0, 0, 0, 0.1);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-md);
}

.case-card.featured .case-category {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-secondary);
}

.case-card h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.case-card.featured h3 {
    color: var(--color-secondary);
}

.case-description {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.case-card.featured .case-description {
    color: rgba(255, 255, 255, 0.9);
}

.case-results {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

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

.result-number {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    line-height: 1;
}

.case-card.featured .result-number {
    color: var(--color-secondary);
}

.result-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.case-card.featured .result-label {
    color: rgba(255, 255, 255, 0.8);
}

.case-highlight {
    background: rgba(0, 0, 0, 0.05);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    background: var(--color-background-gray);
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
}

.case-card.featured .tag {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-secondary);
}

@media (max-width: 768px) {
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-results {
        justify-content: center;
    }
    
    .result-number {
        font-size: 1.5rem;
    }
}

.testimonials {
    padding: var(--spacing-xxxl) 0;
    background: var(--color-background-gray);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.testimonial {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border-light);
}

.testimonial-content p {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.testimonial-content p::before {
    content: '"';
    font-size: 1.5rem;
    color: var(--color-text-lighter);
}

.testimonial-content p::after {
    content: '"';
    font-size: 1.5rem;
    color: var(--color-text-lighter);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.author-name {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

.author-title {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.company-story {
    padding: var(--spacing-xxxl) 0;
}

.story-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxxl);
    align-items: center;
}

.story-text h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.story-text p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.story-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.mission-animation {
    width: 380px;
    height: 280px;
    background: linear-gradient(135deg, var(--color-background-blue), rgba(255, 255, 255, 0.8));
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border: 2px solid rgba(0, 102, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.15);
    animation: float 8s ease-in-out infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .story-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .story-text h2 {
        font-size: 2rem;
    }
    
    .story-text p {
        font-size: 1rem;
    }
    
    .mission-animation {
        width: 320px;
        height: 240px;
    }
}

.values {
    padding: var(--spacing-xxxl) 0;
    background: var(--color-background-gray);
}

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

.value-item {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid var(--color-border-light);
    transition: var(--transition);
}

.value-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-light);
}

.value-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.value-item h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.value-item p {
    color: var(--color-text-light);
    line-height: 1.6;
}

.team {
    padding: var(--spacing-xxxl) 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.team-member {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    border: 1px solid var(--color-border-light);
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-light);
}

.member-avatar {
    margin-bottom: var(--spacing-md);
}

.avatar-placeholder {
    width: 80px;
    height: 80px;
    background: var(--color-primary);
    color: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
    margin: 0 auto;
}

.member-info h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.member-role {
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.member-bio {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 0.875rem;
}

.capabilities {
    padding: var(--spacing-xxxl) 0;
    background: var(--color-background-gray);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.capability-category {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border-light);
}

.capability-category h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

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

.capability-category li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-light);
}

.capability-category li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.milestones {
    padding: var(--spacing-xxxl) 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-date {
    flex: 0 0 100px;
    text-align: center;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    background: var(--color-background);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-primary);
    z-index: 2;
    margin: 0 var(--spacing-lg);
}

.timeline-content {
    flex: 1;
    background: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-light);
}

.timeline-content h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.timeline-content p {
    color: var(--color-text-light);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
        text-align: left;
    }
    
    .timeline-date {
        flex: 0 0 60px;
        margin: 0 var(--spacing-sm) 0 0;
        font-size: 0.875rem;
    }
}

.join-us {
    padding: var(--spacing-xxxl) 0;
    background: var(--color-background-dark);
    color: var(--color-secondary);
    text-align: center;
}

.join-content h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
}

.join-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.positions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.position {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
}

.position h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.position p {
    font-size: 0.875rem;
    opacity: 0.8;
    margin: 0;
}

@media (max-width: 768px) {
    .join-content h2 {
        font-size: 2rem;
    }
    
    .positions {
        grid-template-columns: 1fr;
    }
}

.contact {
    padding: var(--spacing-xxxl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xxxl);
}

.contact-form-section h2 {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.contact-form-section p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-group label {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.1);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
    width: auto;
}

.form-success {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-background-gray);
    border-radius: var(--border-radius-lg);
}

.success-icon {
    font-size: 3rem;
    color: #22c55e;
    margin-bottom: var(--spacing-md);
}

.form-success h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.contact-info {
    background: var(--color-background-gray);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
}

.contact-info h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.info-icon {
    font-size: 1.25rem;
    margin-top: 2px;
}

.info-label {
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: 2px;
}

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

.quick-contact {
    background: var(--color-background-gray);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
}

.quick-contact h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.quick-contact p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.quick-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.response-time {
    background: var(--color-background-gray);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
}

.response-time h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.response-time ul {
    list-style: none;
}

.response-time li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.response-time li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #22c55e;
    font-weight: var(--font-weight-bold);
}

@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .quick-buttons {
        flex-direction: column;
    }
}

.faq {
    padding: var(--spacing-xxxl) 0;
    background: var(--color-background-gray);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.faq-item {
    background: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border-light);
}

.faq-item h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.faq-item p {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 0.875rem;
}

/* 语言切换器样式 */
.lang-switcher {
    display: flex;
    background: var(--color-background-gray);
    border-radius: var(--border-radius);
    padding: 2px;
    gap: 2px;
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: none;
    background: transparent;
    border-radius: calc(var(--border-radius) - 2px);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-light);
    cursor: pointer;
    transition: var(--transition-fast);
    min-width: 40px;
}

.lang-btn.active {
    background: var(--color-background);
    color: var(--color-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

/* 语言切换动画 */
.lang-switching {
    transition: opacity 0.3s ease;
}

.lang-switching.fade-out {
    opacity: 0;
}

.lang-switching.fade-in {
    opacity: 1;
}

/* 字体优化 */
:lang(en) {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

:lang(zh) {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

@media (max-width: 768px) {
    .lang-switcher {
        margin-left: auto;
        margin-right: var(--spacing-sm);
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .lang-switching {
        transition: none !important;
    }
}