:root {
    --primary-dark: #0a1628;
    --primary-cyan: #00d4aa;
    --accent-gold: #ffd700;
    --text-light: #ffffff;
    --text-gray: #b0b8c4;
    --card-bg: rgba(255, 255, 255, 0.05);
    --gradient-primary: linear-gradient(135deg, #0a1628 0%, #1a2a4a 100%);
    --gradient-accent: linear-gradient(135deg, #00d4aa 0%, #00a884 100%);
    --gradient-gold: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--primary-dark);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 212, 170, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    height: 45px;
    width: auto;
    filter: drop-shadow(0 0 10px rgba(0, 212, 170, 0.3));
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

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

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

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

.menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary-cyan);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 22, 40, 0.9) 0%, rgba(10, 22, 40, 0.7) 100%);
    z-index: -1;
}

.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: 2rem;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, var(--primary-cyan) 50%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.2); }
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    color: var(--text-gray);
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.stat-label {
    display: block;
    color: var(--text-gray);
    font-size: 1rem;
    margin-top: 0.5rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 3rem;
    background: var(--gradient-accent);
    color: var(--primary-dark);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 170, 0.4);
}

/* 通用部分样式 */
.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 6rem 5%;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 50%, #ffffff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title.light {
    color: var(--text-light);
}

.section-divider {
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    margin: 0 auto;
    border-radius: 2px;
}

.section-divider.light {
    background: var(--gradient-gold);
}

/* 公司简介 */
.company {
    background: #f8fafc;
    position: relative;
    overflow: hidden;
}

.company::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.company .section-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 2rem;
}

.timeline-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-cyan);
    min-width: 80px;
}

.timeline-content h4 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: #64748b;
    font-size: 0.95rem;
}

.company-text {
    color: #475569;
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.company-text strong {
    color: var(--primary-cyan);
}

.culture-quote {
    background: var(--gradient-primary);
    padding: 2rem;
    border-radius: 16px;
    border-left: 4px solid var(--primary-cyan);
    position: relative;
}

.culture-quote i {
    color: var(--primary-cyan);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    display: block;
}

.culture-quote p {
    color: var(--text-light);
    font-style: italic;
    font-size: 1.1rem;
}

.company-image-wrapper {
    position: relative;
}

.glow-orb {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    top: -50px;
    right: -50px;
    animation: float 6s ease-in-out infinite;
}

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

.company-image {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transition: transform 0.5s ease;
}

.company-image:hover {
    transform: scale(1.02);
}

.company-image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    border: 2px solid rgba(0, 212, 170, 0.2);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.company-image-placeholder i {
    font-size: 4rem;
    color: var(--primary-cyan);
    opacity: 0.8;
}

.company-image-placeholder span {
    font-size: 1.2rem;
    color: var(--text-light);
    font-weight: 600;
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    background: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.8rem;
}

.qr-placeholder i {
    font-size: 4rem;
    color: var(--primary-dark);
}

/* 业务体系 */
.business {
    background: var(--gradient-primary);
    position: relative;
}

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

.business-card {
    background: var(--card-bg);
    border: 1px solid rgba(0, 212, 170, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.business-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 170, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(0, 212, 170, 0.1);
}

.business-card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-accent);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    color: var(--primary-dark);
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.3);
}

.business-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

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

/* 项目展示 */
.projects {
    background: #f8fafc;
    padding: 6rem 0;
}

.projects-carousel {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.carousel-container {
    overflow: hidden;
    border-radius: 20px;
}

.carousel-slide {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding: 1rem 0;
}

.project-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.project-card:hover::after {
    transform: scaleX(1);
}

.project-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(0, 212, 170, 0.1);
    color: var(--primary-cyan);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.project-card h3 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 0.8rem;
}

.project-desc {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-meta span {
    font-size: 0.85rem;
    color: #94a3b8;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

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

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.carousel-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--primary-cyan);
    background: transparent;
    color: var(--primary-cyan);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #cbd5e1;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: var(--primary-cyan);
    width: 30px;
    border-radius: 6px;
}

/* 服务优势 */
.advantages {
    background: var(--gradient-primary);
    position: relative;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.advantage-item {
    text-align: center;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 170, 0.1);
    transition: all 0.4s ease;
}

.advantage-item:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 170, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.advantage-item i {
    font-size: 3rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    display: block;
}

.advantage-item h4 {
    font-size: 1.5rem;
    color: var(--text-light);
}

/* 合作伙伴 */
.partners {
    background: #f8fafc;
    padding: 6rem 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    padding: 1.5rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.partner-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-cyan);
    font-size: 1.5rem;
}

.partner-item span {
    font-size: 0.9rem;
    color: #475569;
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: var(--primary-dark);
    border-top: 1px solid rgba(0, 212, 170, 0.1);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 4rem 5% 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    height: 50px;
    width: 50px;
    object-fit: contain;
}

.footer-brand p {
    color: var(--text-light);
    font-size: 1.2rem;
    font-weight: 600;
}

.footer-info h4 {
    color: var(--primary-cyan);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-info p {
    color: var(--text-gray);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.footer-info i {
    color: var(--primary-cyan);
    width: 20px;
}

.footer-qr {
    text-align: center;
}

.footer-qr img {
    width: 120px;
    height: 120px;
    border-radius: 12px;
    margin-bottom: 0.8rem;
}

.footer-qr p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

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

.footer-bottom p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* 滚动到顶部按钮 */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    border: none;
    border-radius: 50%;
    color: var(--primary-dark);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.3);
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 212, 170, 0.4);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .partners-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .company .section-container {
        grid-template-columns: 1fr;
    }
    
    .company-image-wrapper {
        order: -1;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .carousel-slide {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 22, 40, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-top: 1px solid rgba(0, 212, 170, 0.1);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-btn {
        display: block;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .business-grid {
        grid-template-columns: 1fr;
    }
    
    .carousel-slide {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .footer-brand {
        align-items: center;
    }
    
    .footer-info p {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .section-container {
        padding: 4rem 5%;
    }
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}