/* 全局样式 */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #7b2cbf;
    --accent-color: #ff006e;
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --bg-card: #151515;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --border-color: #2a2a2a;
    --gradient-1: linear-gradient(135deg, #00d4ff 0%, #7b2cbf 100%);
    --gradient-2: linear-gradient(135deg, #ff006e 0%, #7b2cbf 100%);
    --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* 导航 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(10, 10, 10, 0.95);
}

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

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

.logo img {
    height: 40px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

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

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

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

.lang-switch {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
}

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

.mobile-menu {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(123, 44, 191, 0.15) 0%, transparent 50%),
        var(--bg-darker);
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 60px;
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 1s ease 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.btn {
    padding: 14px 35px;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    border: none;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.5);
}

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

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

.scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-down i {
    font-size: 30px;
    color: var(--text-muted);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* 通用区块 */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-1);
    margin: 20px auto 0;
    border-radius: 2px;
}

/* 关于我们 */
.about-section {
    background: var(--bg-darker);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: 40px;
}

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

.stat-num {
    display: block;
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
}

.about-image {
    position: relative;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder i {
    font-size: 80px;
    color: var(--text-muted);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    opacity: 0.3;
}

/* 核心业务 - 修改为3列显示 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.service-card {
    background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

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

.service-icon {
    width: 90px;
    height: 90px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 35px;
}

.service-icon i {
    font-size: 36px;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.service-card p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.6;
}

/* 为每个服务卡片添加不同的渐变背景 */
.service-card:nth-child(1) {
    background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
}

.service-card:nth-child(2) {
    background: linear-gradient(145deg, #1e1e30 0%, #2d1a4a 100%);
}

.service-card:nth-child(3) {
    background: linear-gradient(145deg, #16213e 0%, #1a1a2e 100%);
}

.service-card:nth-child(1):hover {
    border-color: #00d4ff;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.service-card:nth-child(2):hover {
    border-color: #7b2cbf;
    box-shadow: 0 0 30px rgba(123, 44, 191, 0.3);
}

.service-card:nth-child(3):hover {
    border-color: #ff006e;
    box-shadow: 0 0 30px rgba(255, 0, 110, 0.3);
}

.service-card:nth-child(1) .service-icon {
    background: rgba(0, 212, 255, 0.15);
}

.service-card:nth-child(2) .service-icon {
    background: rgba(123, 44, 191, 0.15);
}

.service-card:nth-child(3) .service-icon {
    background: rgba(255, 0, 110, 0.15);
}

.service-card:nth-child(1) .service-icon i {
    color: #00d4ff;
}

.service-card:nth-child(2) .service-icon i {
    color: #7b2cbf;
}

.service-card:nth-child(3) .service-icon i {
    color: #ff006e;
}

/* 案例展示 */
.cases-section {
    background: var(--bg-darker);
}

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

.case-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.case-image {
    height: 250px;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 50%);
}

.case-image i {
    font-size: 50px;
    color: var(--text-muted);
}

.case-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.case-card:hover .case-overlay {
    opacity: 1;
    transform: translateY(0);
}

.case-overlay span {
    font-size: 12px;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.case-info {
    padding: 25px;
}

.case-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.case-info p {
    font-size: 14px;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cases-more,
.news-more {
    text-align: center;
    margin-top: 50px;
}

/* 新闻动态 */
.news-section {
    background: var(--bg-darker);
}

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

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

.news-image {
    height: 200px;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-image i {
    font-size: 40px;
    color: var(--text-muted);
}

.news-content {
    padding: 25px;
}

.news-date {
    font-size: 12px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.news-content h3 {
    font-size: 18px;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-content p {
    font-size: 14px;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 联系 */
.contact-section {
    background: var(--bg-darker);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 28px;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 18px;
}

.contact-item div p {
    color: var(--text-secondary);
}

.contact-item div p:first-child {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 3px;
}

.contact-map {
    height: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 20px;
}

.contact-map i {
    font-size: 60px;
    color: var(--text-muted);
}

/* 页脚 */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-info h3 {
    font-size: 20px;
    margin-bottom: 20px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-info p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 10px;
}

.footer-links h4,
.footer-social h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
}

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

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

.social-icons a {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.social-icons a:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

/* 页面头部 */
.page-header {
    padding: 150px 0 80px;
    text-align: center;
    background: var(--bg-darker);
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
}

/* 服务详情 */
.service-detail {
    padding: 80px 0;
}

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

.service-detail-header h1 {
    font-size: 36px;
    margin-bottom: 15px;
}

.service-detail-header p {
    color: var(--text-secondary);
    font-size: 18px;
}

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

.feature-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

/* 响应式 */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .cases-grid,
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .services-grid,
    .cases-grid,
    .news-grid,
    .service-features {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        justify-content: center;
    }
}