.papers-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    font-family: 'Lato', sans-serif;
    line-height: 1.6;
    color: #333;
}

.papers-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.papers-header h1 {
    font-size: 2.5em;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
}

.year-section {
    margin-bottom: 40px;
}

.year-section h3 {
    font-size: 1.8em;
    font-weight: 700;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.paper {
    margin-bottom: 25px;
    padding: 15px;
    background-color: #fff;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    transition: box-shadow 0.3s ease;
}

.paper:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    background-color: #eeeeee;
}

.paper-title {
    font-weight: 700;
    font-size: 1.1em;
    margin-bottom: 8px;
}

.paper-title a {
    color: #2c3e50;
    text-decoration: none;
}

.paper-title a:hover {
    color: #3498db;
}

.paper-links {
    margin: 8px 0;
    font-size: 14px;
}

.paper-links a {
    color: #3498db;
    text-decoration: none;
}

.paper-links a:hover {
    text-decoration: underline;
}

.paper-authors {
    font-style: italic;
    margin: 8px 0;
    color: #555;
}

.paper-venue {
    font-style: italic;
    margin: 8px 0;
    color: #666;
}

.paper-news {
    color: #76b900;
    margin: 8px 0;
    font-size: 14px;
}

.paper-news strong {
    color: #76b900;
}

.paper-news a {
    color: #76b900;
    text-decoration: none;
}

.paper-news a:hover {
    text-decoration: underline;
}

.youtube-icon {
    height: 17px;
    vertical-align: middle;
    margin-left: 5px;
}

.ppt-icon {
    height: 17px;
    vertical-align: middle;
    margin-left: 5px;
}

.copyright-notice {
    margin-top: 40px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    font-size: 14px;
    color: #666;
    font-style: italic;
}

@media (max-width: 768px) {
    .papers-container {
        padding: 15px;
    }

    .papers-header h1 {
        font-size: 2em;
    }

    .year-section h3 {
        font-size: 1.5em;
    }

    .paper-links a {
        display: block;
        margin-bottom: 5px;
    }
}