/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #00ffff;
    --secondary: #00ff00;
    --accent: #ff00ff;
    --dark: #0a0a0a;
    --darker: #050505;
    --light: #ffffff;
    --gray: #888888;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--darker);
    color: var(--light);
    overflow-x: hidden;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 加载动画 */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--darker);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading-content {
    text-align: center;
}

.loading-logo {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
    animation: pulse 2s infinite;
}

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

.loading-bar {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin: 20px auto;
    overflow: hidden;
}

.loading-progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
    transition: width 0.3s ease;
}

.loading-text {
    font-size: 1.2rem;
    color: var(--gray);
    letter-spacing: 2px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    z-index: 999;
    padding: 20px 0;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

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

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

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

.bar {
    width: 25px;
    height: 3px;
    background: var(--light);
    margin: 3px 0;
    transition: var(--transition);
}

/* 按钮样式 */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.primary-btn {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    color: var(--darker);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 255, 255, 0.3);
}

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

.secondary-btn:hover {
    background: rgba(0, 255, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 255, 255, 0.2);
}

/* 区域样式 */
.section {
    min-height: 100vh;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

/* 首页区域 */
.home-section {
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at center, rgba(10, 10, 10, 0.8) 0%, var(--darker) 100%);
}

.hero-content {
    text-align: center;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--gray);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* 关于我们区域 */
.about-section {
    background: var(--dark);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: #ccc;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.1);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 255, 255, 0.3);
    box-shadow: 0 10px 20px rgba(0, 255, 255, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    color: var(--gray);
}

/* 服务区域 */
.services-section {
    background: var(--darker);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 255, 255, 0.1);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 255, 255, 0.2);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    position: relative;
}

.icon-inner {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 50%;
    border: 2px solid var(--primary);
    transition: var(--transition);
}

.service-card:hover .icon-inner {
    background: rgba(0, 255, 255, 0.2);
    transform: rotate(10deg);
}

.icon-inner svg {
    width: 40px;
    height: 40px;
    stroke: var(--primary);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--light);
}

.service-description {
    color: #aaa;
    line-height: 1.7;
}

/* 技术区域 */
.technology-section {
    background: var(--dark);
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.tech-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.tech-feature {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.tech-icon {
    position: relative;
    width: 60px;
    height: 60px;
    flex-shrink: 0;
}

.icon-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 50%;
    border: 2px solid var(--primary);
    transition: var(--transition);
}

.tech-feature:hover .icon-bg {
    transform: scale(1.1);
    background: rgba(0, 255, 255, 0.2);
}

.tech-icon svg {
    position: relative;
    width: 30px;
    height: 30px;
    stroke: var(--primary);
    margin: 15px;
}

.tech-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--light);
}

.tech-description {
    color: #aaa;
    line-height: 1.7;
}

.tech-visualization {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-circle {
    position: relative;
    width: 300px;
    height: 300px;
}

.circle-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--primary);
}

.circle-content {
    text-align: center;
}

.circle-content h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--primary);
}

.circle-content p {
    font-size: 0.9rem;
    color: var(--gray);
}

.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.orbit-1 {
    width: 200px;
    height: 200px;
}

.orbit-2 {
    width: 250px;
    height: 250px;
    animation-duration: 25s;
    animation-direction: reverse;
}

.orbit-3 {
    width: 300px;
    height: 300px;
    animation-duration: 30s;
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 联系我们区域 */
.contact-section {
    background: var(--darker);
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    padding: 50px 0;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid rgba(0, 255, 255, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.contact-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 255, 255, 0.2);
}

.info-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 50%;
    border: 2px solid var(--primary);
}

.info-icon svg {
    width: 35px;
    height: 35px;
    stroke: var(--primary);
}

.contact-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--light);
}

.contact-card p {
    color: #aaa;
    font-size: 1.1rem;
    line-height: 1.7;
}

/* 页脚 */
.footer {
    background: var(--dark);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-links {
    display: flex;
    gap: 20px;
}

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

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

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--light);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--darker);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .about-content,
    .tech-content {
        grid-template-columns: 1fr;
    }
    
    .tech-circle {
        width: 250px;
        height: 250px;
    }
    
    .orbit-1 {
        width: 170px;
        height: 170px;
    }
    
    .orbit-2 {
        width: 210px;
        height: 210px;
    }
    
    .orbit-3 {
        width: 250px;
        height: 250px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--dark);
        flex-direction: column;
        align-items: center;
        padding-top: 50px;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .contact-card {
        padding: 30px 20px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .contact-card {
        padding: 25px 15px;
    }
    
    .info-icon {
        width: 60px;
        height: 60px;
        margin: 0 auto 20px;
    }
    
    .info-icon svg {
        width: 30px;
        height: 30px;
    }
    
    .contact-card h3 {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .contact-card p {
        font-size: 1rem;
    }
}