/* 基本样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0A1628;
    --bg-secondary: #1E3A5F;
    --accent-start: #4A5BFF;
    --accent-end: #00F5FF;
    --text-light: #FFFFFF;
    --text-dark: #1A1A1A;
    --text-secondary: #6B7280;
    --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 600ms cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #f5f5f5;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-fast);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
}

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

.nav-menu li {
    margin-left: 2rem;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    transition: var(--transition-fast);
}

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

.contact-btn {
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    color: var(--text-light);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.contact-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(74, 91, 255, 0.4);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
    background: transparent;
    border: none;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-light);
    transition: var(--transition-fast);
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    z-index: 1;
}

#particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.hero-container {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding-top: 80px;
}

.hero-content {
    flex: 1;
    max-width: 50%;
    padding-right: 4rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.btn-primary {
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    color: var(--text-light);
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-fast);
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 8px 20px rgba(74, 91, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-fast);
    display: inline-block;
    border: 2px solid var(--text-light);
}

.btn-secondary:hover {
    background: var(--text-light);
    color: var(--bg-primary);
    transform: translateY(-4px) scale(1.03);
}

.hero-brain {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 50%;
}

.brain-image {
    max-width: 100%;
    height: auto;
    max-height: 70vh;
    border-radius: 10px;
    box-shadow: 0 0 40px rgba(0, 245, 255, 0.6);
    animation: brainGlow 3s ease-in-out infinite;
}

@keyframes brainGlow {
    0%, 100% {
        box-shadow: 0 0 40px rgba(0, 245, 255, 0.4);
    }
    50% {
        box-shadow: 0 0 60px rgba(0, 245, 255, 0.8);
    }
}

/* 粒子动效优化 - 慢速深邃 */
@keyframes floatSlow {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-20px) translateX(10px);
    }
    50% {
        transform: translateY(-10px) translateX(-5px);
    }
    75% {
        transform: translateY(-25px) translateX(5px);
    }
}

/* 滚动淡入动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* 交错延迟动画 */
.scroll-reveal:nth-child(1) { transition-delay: 0ms; }
.scroll-reveal:nth-child(2) { transition-delay: 80ms; }
.scroll-reveal:nth-child(3) { transition-delay: 160ms; }
.scroll-reveal:nth-child(4) { transition-delay: 240ms; }

/* 公司简介区 */
.about {
    padding: 8rem 0;
    background: var(--bg-secondary);
    color: var(--text-light);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 4rem;
    text-align: center;
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-bg {
    height: 400px;
    background: url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=modern%20technology%20background%20with%20blue%20digital%20elements%20and%20data%20visualization&image_size=landscape_16_9');
    background-size: cover;
    background-position: center;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* 业务展示区 */
.services {
    padding: 8rem 0;
    background: #f5f5f5;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: var(--transition-fast);
    border-top: 3px solid transparent;
    background: linear-gradient(white, white) padding-box, linear-gradient(90deg, var(--accent-start), var(--accent-end)) border-box;
}

.service-card:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    transition: var(--transition-fast);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--bg-primary);
}

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

/* 解决方案区 */
.solutions {
    padding: 8rem 0;
    background: #f5f5f5;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.solution-card {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    transform: scaleX(0);
    transition: var(--transition-fast);
}

.solution-card:hover::before {
    transform: scaleX(1);
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.solution-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.solution-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--bg-primary);
}

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

/* 合作伙伴区 */
.partners {
    padding: 8rem 0;
    background: var(--bg-secondary);
    color: var(--text-light);
}

.partners-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.partners-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.partners-img {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.partners-text h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.partners-text p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
}

/* 联系我们区 */
.contact {
    padding: 8rem 0;
    background: var(--bg-primary);
    color: var(--text-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--accent-end);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-end);
    box-shadow: 0 0 10px rgba(0, 245, 255, 0.3);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* 页脚 */
.footer {
    background: var(--bg-primary);
    color: var(--text-light);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-logo-img {
    height: 30px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--accent-end);
}

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

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-contact p {
    margin-bottom: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-container {
        flex-direction: column;
        padding-top: 100px;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        padding-right: 0;
        margin-bottom: 3rem;
    }
    
    .hero-brain {
        max-width: 100%;
    }
    
    .brain-image {
        max-height: 50vh;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .partners-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}