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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    line-height: 1.7;
    color: #24292e;
    background-color: #fff;
    font-size: 16px;
}

/* Navigation */
.top-nav {
    border-bottom: 1px solid #e1e4e8;
    background-color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: #586069;
    text-decoration: none;
    font-size: 0.95em;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #0366d6;
}

.nav-links a.active {
    color: #24292e;
    font-weight: 600;
}

.social-links {
    display: flex;
    gap: 15px;
    align-items: center;
}

.social-links a {
    color: #586069;
    display: flex;
    align-items: center;
    transition: color 0.2s;
}

.social-links a:hover {
    color: #0366d6;
}

.social-links svg {
    width: 20px;
    height: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 30px;
}

header {
    margin-bottom: 40px;
}

h1 {
    font-size: 2.2em;
    font-weight: 600;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.tagline {
    font-size: 1.05em;
    color: #666;
    margin-bottom: 35px;
}

.profile-image {
    float: right;
    margin: 0 0 20px 30px;
    max-width: 280px;
    border-radius: 4px;
}

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

.content {
    clear: both;
}

.content p {
    margin-bottom: 16px;
    text-align: justify;
}

h2 {
    font-size: 1.3em;
    font-weight: 600;
    margin-top: 50px;
    margin-bottom: 20px;
    color: #1a1a1a;
}

h2 a {
    color: #1a1a1a;
    text-decoration: none;
}

h2 a:hover {
    text-decoration: underline;
}

a {
    color: #0366d6;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.news-section {
    margin-top: 50px;
}
.research-section h3 {
    font-size: 1.05em;
    margin-top: 18px;
    color: #333;
}
.research-section ul {
    margin-left: 18px;
    margin-top: 8px;
}

.news-item {
    margin-bottom: 25px;
    display: flex;
    gap: 20px;
}

.news-date {
    flex-shrink: 0;
    width: 110px;
    color: #666;
    font-size: 0.95em;
}

.news-content {
    flex: 1;
    line-height: 1.6;
}

.publications-section {
    margin-top: 50px;
}

.publications-section h3 {
    font-size: 1.1em;
    font-weight: 600;
    color: #586069;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 35px;
    margin-bottom: 20px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e1e4e8;
}

.publication {
    position: relative;
    margin-bottom: 16px;
    padding: 18px 20px;
    border-left: 3px solid #0366d6;
    background-color: #f8f9fa;
    border-radius: 0 6px 6px 0;
    transition: background-color 0.2s, box-shadow 0.2s;
}

.publication:hover {
    background-color: #f0f3f6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.pub-title {
    font-size: 1.02em;
    font-weight: 600;
    margin-bottom: 6px;
    color: #1a1a1a;
    line-height: 1.4;
}

.pub-authors {
    color: #586069;
    margin-bottom: 4px;
    font-size: 0.9em;
}

.pub-venue {
    color: #666;
    font-style: italic;
    margin-bottom: 4px;
    font-size: 0.9em;
}

.pub-year {
    position: absolute;
    top: 18px;
    right: 18px;
    font-size: 0.8em;
    font-weight: 600;
    color: #0366d6;
    background-color: #e8f0fe;
    padding: 2px 10px;
    border-radius: 12px;
}

.pub-links {
    font-size: 0.88em;
    margin-top: 6px;
}

.pub-links a {
    margin-right: 12px;
    font-weight: 500;
}

.awards-section {
    margin-top: 50px;
}

.award {
    position: relative;
    margin-bottom: 16px;
    padding: 18px 20px;
    border-left: 3px solid #28a745;
    background-color: #f8f9fa;
    border-radius: 0 6px 6px 0;
    transition: background-color 0.2s, box-shadow 0.2s;
}

.award:hover {
    background-color: #f0f3f6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.award-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.award-title {
    font-size: 1.02em;
    font-weight: 600;
    color: #1a1a1a;
}

.award-location {
    color: #586069;
    font-size: 0.9em;
    margin-top: 2px;
}

.award .pub-year {
    position: static;
    flex-shrink: 0;
}

.award p {
    font-size: 0.93em;
    color: #444;
    line-height: 1.6;
    margin-bottom: 8px;
}

.award .pub-links {
    margin-top: 4px;
}

.contact-section {
    margin-top: 50px;
}

.contact-section p {
    line-height: 1.8;
}

footer {
    margin-top: 80px;
    padding-top: 20px;
    border-top: 1px solid #e1e4e8;
    text-align: center;
    color: #666;
    font-size: 0.9em;
}

.pub-footer {
    margin-top: 12px;
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 20px;
        flex-direction: column;
        height: auto;
        padding-top: 15px;
        padding-bottom: 15px;
        gap: 15px;
    }

    .nav-links {
        gap: 15px;
    }

    .nav-links a {
        font-size: 0.9em;
    }

    .social-links {
        gap: 12px;
    }

    .container {
        padding: 40px 20px;
    }

    h1 {
        font-size: 1.8em;
    }

    .profile-image {
        float: none;
        margin: 0 auto 30px;
        max-width: 220px;
        display: block;
    }

    .news-item {
        flex-direction: column;
        gap: 5px;
    }

    .news-date {
        width: auto;
        font-weight: 600;
    }

    h2 {
        margin-top: 40px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 15px;
    }

    h1 {
        font-size: 1.6em;
    }

    .container {
        padding: 30px 15px;
    }

    .nav-links {
        gap: 10px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .social-links svg {
        width: 18px;
        height: 18px;
    }
}