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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #ffffff;
}

header {
    background-color: #ffffff;
    border-bottom: 1px solid #eee;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: #2c3e50;
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.2;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo-subtitle {
    font-size: 0.8rem;
    color: #95a5a6;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #2c3e50;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #3498db;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 80px 1rem 2rem;
}

section {
    margin-bottom: 4rem;
}

.hero {
    text-align: center;
    padding: 4rem 0;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.subtitle {
    color: #7f8c8d;
    font-size: 1.1rem;
}

.articles h2, .about h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.article-item {
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    transition: transform 0.2s;
}

.article-item:hover {
    transform: translateY(-2px);
}

.article-item time {
    font-size: 0.9rem;
    color: #95a5a6;
}

.article-item h3 {
    margin: 0.5rem 0;
    font-size: 1.2rem;
}

.read-more {
    display: inline-block;
    margin-top: 1rem;
    color: #3498db;
    text-decoration: none;
    font-size: 0.9rem;
}

.about-content {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
}

.social-links {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

.social-link {
    color: #3498db;
    text-decoration: none;
    font-size: 0.9rem;
}

footer {
    text-align: center;
    padding: 2rem;
    color: #95a5a6;
    font-size: 0.9rem;
}

.icp-beian {
    margin-top: 0.5rem;
    font-size: 0.8rem;
}

.icp-beian a {
    color: #95a5a6;
    text-decoration: none;
    transition: color 0.3s;
}

.icp-beian a:hover {
    color: #7f8c8d;
}

.upyun {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #95a5a6;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.upyun-logo {
    height: 24px;
    vertical-align: middle;
    transition: opacity 0.3s;
}

.upyun a:hover .upyun-logo {
    opacity: 0.8;
}

@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .article-item {
        padding: 1rem;
    }
}