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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header nav {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header .logo a {
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

header .nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
}

header .nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

header .nav-links a:hover {
    opacity: 0.8;
}

main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: calc(100vh - 200px);
}

h1 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #1a1a2e;
}

h2 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: #1a1a2e;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

h3 {
    font-size: 1.2rem;
    margin: 25px 0 10px;
    color: #333;
}

p {
    margin-bottom: 15px;
    color: #555;
}

ul {
    margin-left: 25px;
    margin-bottom: 15px;
}

li {
    margin-bottom: 8px;
    color: #555;
}

a {
    color: #667eea;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.profile-section {
    text-align: center;
    margin-bottom: 40px;
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 3rem;
    color: white;
}

.profile-info h1 {
    margin-bottom: 10px;
}

.profile-info .title {
    color: #666;
    font-size: 1.1rem;
}

.profile-info .affiliation {
    color: #888;
    font-size: 0.95rem;
}

.social-links {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #f0f0f0;
    color: #333;
    text-decoration: none;
    transition: all 0.3s;
}

.social-links a:hover {
    background: #1a1a2e;
    color: white;
    text-decoration: none;
}

.news-item {
    background: white;
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border-left: 4px solid #667eea;
}

.news-date {
    color: #667eea;
    font-weight: 600;
    font-size: 0.9rem;
}

.pub-item {
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.pub-title {
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 5px;
}

.pub-authors {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 5px;
}

.pub-venue {
    color: #667eea;
    font-style: italic;
}

.pub-tag {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-left: 8px;
}

footer {
    background: #1a1a2e;
    color: white;
    padding: 25px 0;
    text-align: center;
}

footer p {
    color: rgba(255,255,255,0.8);
    margin-bottom: 5px;
}

@media (max-width: 768px) {
    header .nav-links {
        display: none;
    }
    
    main {
        padding: 20px;
    }
    
    h1 {
        font-size: 1.6rem;
    }
}