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

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

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    text-align: center;
    margin-bottom: 60px;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 40px;
}

.profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.profile-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #333;
}

header h1 {
    font-size: 2.5em;
    margin: 10px 0;
    color: #000;
}

.subtitle {
    font-size: 1.1em;
    color: #666;
    font-weight: 300;
}

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background-color: #f0f0f0;
    border-radius: 50%;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.3em;
}

.social-links a:hover {
    background-color: #333;
    color: #fff;
    transform: scale(1.1);
}

section {
    margin-bottom: 50px;
}

h2 {
    font-size: 1.8em;
    margin-bottom: 25px;
    color: #000;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 10px;
}

.bio p {
    font-size: 1.05em;
    margin-bottom: 15px;
    text-align: justify;
}

.paper-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.paper {
    padding: 20px;
    background-color: #f9f9f9;
    border-left: 4px solid #333;
}

.paper h3 {
    font-size: 1.2em;
    margin-bottom: 8px;
    color: #000;
}

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

.venue {
    font-size: 0.9em;
    color: #999;
    margin-bottom: 10px;
}

.abstract {
    font-size: 0.95em;
    color: #555;
    line-height: 1.5;
}

footer {
    text-align: center;
    margin-top: 60px;
    padding-top: 20px;
    border-top: 2px solid #e0e0e0;
    color: #999;
    font-size: 0.9em;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 20px 15px;
    }
    
    header h1 {
        font-size: 1.8em;
    }
    
    .profile-photo {
        width: 120px;
        height: 120px;
    }
    
    h2 {
        font-size: 1.4em;
    }
}