/* Best Paper Award Page Styles */
.page-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px 0;
    border-bottom: 2px solid var(--primary);
}

.page-header h1 {
    color: var(--primary);
    font-size: 1.8rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.page-header .subtitle {
    color: var(--secondary);
    font-size: 1.1rem;
    margin: 0;
}

/* Section Styles */
.section {
    margin-bottom: 30px;
}

.card {
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.section-header {
    background: var(--primary);
    color: var(--white);
    padding: 16px 20px;
}

.section-header h2 {
    font-size: 1.4rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Rules Section */
.rules {
    padding: 20px;
}

.rule {
    padding: 15px;
    background: var(--light);
    border-radius: 6px;
    margin-bottom: 15px;
    border-left: 4px solid var(--primary);
}

.rule:last-child {
    margin-bottom: 0;
}

.rule p {
    margin: 0;
    color: var(--text);
    line-height: 1.6;
}

/* Winners Section - 更新为6个奖项的布局 */
.winners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
}

.winner-card {
    background: var(--light);
    border-radius: 8px;
    padding: 20px;
    position: relative;
    border: 2px solid transparent;
}

/* 一等奖样式 */
.first-place {
    border-color: #FFD700;
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.2);
}

/* 二等奖样式 */
.second-place {
    border-color: #C0C0C0;
    box-shadow: 0 4px 12px rgba(192, 192, 192, 0.2);
}

/* 新增：三等奖样式 */
.third-place {
    border-color: #CD7F32;
    box-shadow: 0 4px 12px rgba(205, 127, 50, 0.2);
}

.award-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
    color: var(--primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.award-badge i {
    font-size: 1.3rem;
}

.first-place .award-badge i {
    color: #FFD700;
}

.second-place .award-badge i {
    color: #C0C0C0;
}

.third-place .award-badge i {
    color: #CD7F32;
}

.paper-title {
    color: var(--dark);
    font-size: 1.1rem;
    line-height: 1.4;
    margin: 0 0 15px 0;
    font-weight: 600;
    min-height: 40px;
}

.paper-details {
    display: grid;
    gap: 10px;
    margin-bottom: 15px;
}

.detail {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray);
}

.detail:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.detail .label {
    color: var(--secondary);
    font-weight: 500;
    min-width: 85px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
}

.detail .label i {
    font-size: 0.9rem;
    color: var(--primary);
}

.detail span:not(.label) {
    color: var(--text);
    flex: 1;
    line-height: 1.4;
    font-size: 0.9rem;
}

.winner-footer {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid var(--gray);
    text-align: center;
}

.award-type {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
}

/* Shortlisted Papers Table */
.table-container {
    padding: 20px;
    overflow-x: auto;
}

.papers-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.papers-table thead {
    background: var(--light);
    border-bottom: 2px solid var(--primary);
}

.papers-table th {
    color: var(--dark);
    font-weight: 600;
    padding: 12px 15px;
    text-align: left;
}

.papers-table tbody tr {
    border-bottom: 1px solid var(--gray);
    transition: background-color 0.2s;
}

.papers-table tbody tr:hover {
    background: var(--light);
}

.papers-table td {
    padding: 15px;
    vertical-align: top;
    color: var(--text);
}

.col-title {
    width: 45%;
    min-width: 200px;
}

.col-authors {
    width: 30%;
    min-width: 150px;
}

.col-affiliation {
    width: 25%;
    min-width: 150px;
}

.title-cell {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.title-cell .icon {
    color: var(--primary);
    margin-top: 2px;
    flex-shrink: 0;
}

/* Contact Section */
.contact-box {
    background: var(--light);
    border: 1px solid var(--primary-light);
    border-radius: 8px;
    padding: 20px;
}

.contact-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.contact-header i {
    color: var(--primary);
    font-size: 1.3rem;
}

.contact-header h3 {
    color: var(--primary);
    margin: 0;
    font-size: 1.2rem;
}

.contact-content p {
    color: var(--text);
    margin: 0 0 15px 0;
    line-height: 1.5;
}

.contact-details {
    display: grid;
    gap: 12px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
}

.contact-item i {
    color: var(--primary);
    font-size: 1rem;
    width: 16px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .winners-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .winner-card {
        padding: 15px;
    }

    .detail {
        flex-direction: column;
        gap: 4px;
    }

    .detail .label {
        min-width: auto;
    }

    .papers-table {
        font-size: 0.85rem;
    }

    .papers-table th,
    .papers-table td {
        padding: 10px;
    }
}

@media (max-width: 576px) {
    .page-header h1 {
        font-size: 1.5rem;
        flex-direction: column;
        gap: 8px;
    }

    .section-header h2 {
        font-size: 1.2rem;
    }

    .rules,
    .table-container {
        padding: 15px;
    }
}