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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0a0a0a;
    color: #e0e0e0;
    line-height: 1.6;
}

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

/* 头部 */
header {
    background-color: #121212;
    padding: 20px 0;
    border-bottom: 1px solid #333;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #00d4ff;
    text-decoration: none;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: #e0e0e0;
    text-decoration: none;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #00d4ff;
}

/* 按钮样式 */
.buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    transition: all 0.3s;
}

.btn-primary {
    background-color: #00d4ff;
    color: #0a0a0a;
}

.btn-primary:hover {
    background-color: #00a8cc;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: #00d4ff;
    border: 1px solid #00d4ff;
}

.btn-secondary:hover {
    background-color: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

/* 英雄区域 */
.hero {
    padding: 100px 0;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,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');
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #ffffff;
}

.hero p {
    font-size: 18px;
    margin-bottom: 40px;
    color: #b0b0b0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-image {
    margin-top: 60px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 特性区域 */
.features {
    padding: 100px 0;
    background-color: #121212;
}

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

.section-title h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #ffffff;
}

.section-title p {
    font-size: 16px;
    color: #b0b0b0;
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background-color: #1a1a1a;
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #333;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
    border-color: #00d4ff;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #00d4ff;
}

.feature-card p {
    color: #b0b0b0;
}

/* 新闻区域 */
.news {
    padding: 100px 0;
    background-color: #0a0a0a;
}

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

.news-card {
    background-color: #1a1a1a;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #333;
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.1);
    border-color: #00d4ff;
}

.news-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 14px;
    color: #888;
    margin-bottom: 10px;
}

.news-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #ffffff;
}

.news-card p {
    color: #b0b0b0;
    margin-bottom: 15px;
}

.news-card a {
    color: #00d4ff;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.news-card a:hover {
    color: #00a8cc;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 20px 0;
    background-color: #121212;
    border-bottom: 1px solid #333;
}

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

.breadcrumb a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: #00d4ff;
}

.breadcrumb span {
    color: #888;
}

/* 内容页面 */
.content-page {
    padding: 60px 0;
    background-color: #121212;
}

.content-page h1 {
    font-size: 36px;
    margin-bottom: 30px;
    color: #ffffff;
}

.content-page p {
    margin-bottom: 20px;
    color: #b0b0b0;
}

.content-page img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 30px 0;
}

/* 页脚 */
footer {
    background-color: #0a0a0a;
    padding: 60px 0 30px;
    border-top: 1px solid #333;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #00d4ff;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: #00d4ff;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #333;
    color: #888;
}

.footer-bottom a {
    color: #00d4ff;
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* 网站地图 */
.sitemap {
    padding: 60px 0;
    background-color: #121212;
}

.sitemap-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.sitemap-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #00d4ff;
}

.sitemap-section ul {
    list-style: none;
}

.sitemap-section ul li {
    margin-bottom: 10px;
}

.sitemap-section ul li a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s;
}

.sitemap-section ul li a:hover {
    color: #00d4ff;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 15px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .features, .news, .content-page, .sitemap {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 200px;
    }
}