:root {
    --primary: #376FFF;
    --primary-dark: #1e4fd8;
    --secondary: #00D4AA;
    --accent: #7B61FF;
    --dark: #0a0a1a;
    --dark-light: #12122a;
    --text: #ffffff;
    --text-muted: rgba(255,255,255,0.7);
    --gradient-1: linear-gradient(135deg, #376FFF 0%, #00D4AA 100%);
    --gradient-2: linear-gradient(135deg, #7B61FF 0%, #376FFF 100%);
}

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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--dark);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Breadcrumb Navigation */
.breadcrumb-nav {
    padding: 140px 0 20px;
    background: transparent;
}

.breadcrumb {
    display: flex;
    list-style: none;
    gap: 10px;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

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

.breadcrumb li + li::before {
    content: '/';
    color: var(--text-muted);
    margin-right: 10px;
}

.breadcrumb [aria-current="page"] {
    color: var(--text);
    font-weight: 500;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 10, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.logo i {
    font-size: 1.8rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.wave {
    position: absolute;
    width: 200%;
    height: 200%;
    border-radius: 40%;
    opacity: 0.05;
    animation: wave 20s infinite linear;
}

.wave-1 {
    background: var(--primary);
    top: -50%;
    left: -50%;
    animation-duration: 25s;
}

.wave-2 {
    background: var(--secondary);
    top: -45%;
    left: -45%;
    animation-duration: 30s;
    animation-direction: reverse;
}

.wave-3 {
    background: var(--accent);
    top: -55%;
    left: -55%;
    animation-duration: 35s;
}

@keyframes wave {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 30px;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 50px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 60px;
    margin-bottom: 50px;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 5px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 10px 30px rgba(55, 111, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(55, 111, 255, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(55, 111, 255, 0.1);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { top: 8px; opacity: 1; }
    100% { top: 20px; opacity: 0; }
}

/* Sections */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(55, 111, 255, 0.1);
    border: 1px solid rgba(55, 111, 255, 0.3);
    border-radius: 50px;
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.about-card {
    background: var(--dark-light);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    transition: all 0.3s;
}

.about-card:hover {
    transform: translateY(-10px);
    border-color: rgba(55, 111, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.about-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
    color: white;
}

.about-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.about-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Leader Section */
.leader-section {
    background: var(--dark-light);
    border-radius: 30px;
    padding: 60px;
    border: 1px solid rgba(255,255,255,0.05);
}

.leader-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.leader-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 50px;
    color: var(--secondary);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.leader-info h3 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.leader-title {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.leader-resume {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.resume-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
}

.resume-item i {
    color: var(--primary);
    width: 20px;
}

.leader-contact {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.contact-link:hover {
    color: var(--primary);
}

.contact-link i {
    color: var(--primary);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--dark-light);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(55, 111, 255, 0.3);
}

.service-card.featured {
    grid-column: span 2;
    background: var(--gradient-2);
}

.service-card.featured .service-content {
    position: relative;
    z-index: 1;
}

.service-content {
    padding: 40px;
}

.service-icon {
    width: 70px;
    height: 70px;
    background: rgba(255,255,255,0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 1.8rem;
    color: var(--primary);
}

.service-card.featured .service-icon {
    background: rgba(255,255,255,0.2);
    color: white;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-muted);
    margin-bottom: 25px;
    line-height: 1.7;
}

.service-card.featured p {
    color: rgba(255,255,255,0.9);
}

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

.service-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.service-card.featured .service-features li {
    color: rgba(255,255,255,0.9);
}

.service-features i {
    color: var(--secondary);
    font-size: 0.8rem;
}

.service-card.featured .service-features i {
    color: rgba(255,255,255,0.8);
}

/* Tech Stack */
.tech-stack {
    background: var(--dark-light);
}

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

.tech-item {
    background: var(--dark);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
}

.tech-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.tech-item i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.tech-item span {
    display: block;
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Cases Section */
.cases-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: var(--text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

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

.case-card {
    background: var(--dark-light);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s;
}

.case-card:hover {
    transform: translateY(-10px);
    border-color: rgba(55, 111, 255, 0.3);
}

.case-card.hidden {
    display: none;
}

.case-image {
    height: 200px;
    background: var(--gradient-2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.case-icon-large {
    font-size: 4rem;
    color: rgba(255,255,255,0.3);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px;
}

.case-tag {
    align-self: flex-start;
    padding: 6px 14px;
    background: rgba(255,255,255,0.2);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.case-award {
    align-self: flex-end;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255, 193, 7, 0.2);
    border-radius: 50px;
    font-size: 0.75rem;
    color: #FFC107;
}

.case-content {
    padding: 30px;
}

.case-content h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    line-height: 1.4;
}

.case-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.case-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.case-meta i {
    color: var(--primary);
}

/* FAQ Section */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background: var(--dark-light);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: rgba(55, 111, 255, 0.3);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    cursor: pointer;
    transition: all 0.3s;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.faq-question i {
    color: var(--primary);
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 15px;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 30px 25px;
    color: var(--text-muted);
    line-height: 1.8;
}

/* Partners */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.partner-item {
    background: var(--dark-light);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 12px;
    padding: 25px 15px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: all 0.3s;
}

.partner-item:hover {
    border-color: var(--primary);
    color: var(--text);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 40px;
    align-items: start;
}

.contact-info {
    display: grid;
    /*grid-template-columns: repeat(2, 1fr);*/
    gap: 20px;
    align-content: start;
}

.contact-card {
    background: var(--dark-light);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    min-height: 160px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: rgba(55, 111, 255, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.5rem;
    color: var(--primary);
}

.contact-card h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 1rem;
    font-weight: 600;
}

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

.contact-form-wrapper {
    background: var(--dark-light);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 24px;
    padding: 40px;
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--dark);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    color: var(--text);
    font-size: 1rem;
    transition: all 0.3s;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--dark-light);
    padding: 80px 0 30px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--text-muted);
    margin-bottom: 25px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.3s;
}

.social-link:hover {
    background: var(--primary);
    color: white;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.1rem;
    margin-bottom: 25px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.footer-contact i {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card.featured {
        grid-column: span 1;
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .about-grid,
    .cases-grid,
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .leader-section {
        padding: 40px 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .breadcrumb-nav {
        padding-top: 100px;
    }

    .faq-question {
        padding: 20px;
    }

    .faq-question h3 {
        font-size: 1rem;
    }

    .faq-answer p {
        padding: 0 20px 20px;
    }
}