/* 技术日程表样式 */

/* 下载按钮区域样式 */
.download-section {
    background: linear-gradient(135deg, #4472C4, #5B9BD5);
    padding: 20px 0;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.download-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: white;
    color: #4472C4;
    padding: 15px 25px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    background: #f8f9fa;
}

.download-icon {
    font-size: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-btn {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .download-section {
        padding: 15px 0;
    }
}

.program-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    font-family: Arial, sans-serif;
}

.program-title {
    text-align: center;
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #333;
}

.day-section {
    margin-bottom: 40px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    overflow: hidden;
}

.day-header {
    background: #4472C4;
    color: white;
    padding: 15px 20px;
    font-size: 20px;
    font-weight: bold;
    text-align: center;
}

.schedule-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.schedule-table th,
.schedule-table td {
    border: 1px solid #ddd;
    padding: 12px;
    text-align: left;
    vertical-align: top;
}

.schedule-table th {
    background-color: #f5f5f5;
    font-weight: bold;
    color: #333;
}

.time-column {
    width: 120px;
    font-weight: bold;
    background-color: #f9f9f9;
    text-align: center;
}

.activity-column {
    background-color: white;
}

.keynote {
    background-color: #e3f2fd;
}

.session {
    background-color: #f3e5f5;
}

.break {
    background-color: #e8f5e8;
}

.meal {
    background-color: #fff3e0;
}

.reception {
    background-color: #fce4ec;
}

.floor-plan-section {
    margin-top: 40px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.floor-plan-title {
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
}

.floor-plan-image {
    text-align: center;
    margin-top: 20px;
}

.floor-plan-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .program-container {
        padding: 10px;
    }
    
    .schedule-table {
        font-size: 14px;
    }
    
    .schedule-table th,
    .schedule-table td {
        padding: 8px;
    }
    
    .time-column {
        width: 80px;
    }
    
    .program-title {
        font-size: 24px;
    }
    
    .day-header {
        font-size: 18px;
        padding: 12px 15px;
    }
}

.multi-session {
    display: flex;
}

.session-half {
    flex: 1;
    padding: 8px;
    text-align: center;
}

.session-half {
    border: 1px solid #ddd;
}

/* Detail of Sessions 样式 */
.details-section {
    margin-top: 40px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.section-title {
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #333;
    border-bottom: 2px solid #4472C4;
    padding-bottom: 10px;
}

.session-detail {
    margin-bottom: 30px;
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
}

.session-title {
    background: #f8f9fa;
    color: #333;
    padding: 15px 20px;
    margin: 0;
    font-size: 16px;
    font-weight: bold;
    border-bottom: 1px solid #ddd;
}

.session-content {
    padding: 20px;
}

.paper-item {
    display: flex;
    margin-bottom: 15px;
    padding: 10px;
    border-left: 3px solid #4472C4;
    background-color: #f9f9f9;
    border-radius: 4px;
}

.paper-time {
    min-width: 100px;
    font-weight: bold;
    color: #4472C4;
    padding-right: 15px;
    flex-shrink: 0;
}

.paper-info {
    flex: 1;
    line-height: 1.4;
}

.paper-info strong {
    color: #333;
    display: block;
    margin-bottom: 5px;
}

.guidelines-section {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #ddd;
}

.guidelines {
    margin-top: 20px;
    padding: 15px;
    background: #fff;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
}

.guidelines h4 {
    margin: 0 0 15px 0;
    color: #4472C4;
    font-size: 16px;
}

.guidelines ol {
    margin: 0;
    padding-left: 20px;
}

.guidelines ol ol {
    margin-top: 8px;
    margin-bottom: 8px;
    padding-left: 20px;
}

.guidelines-section ol ol {
    margin-top: 8px;
    margin-bottom: 8px;
    padding-left: 20px;
}

.guidelines li {
    margin-bottom: 15px;
    line-height: 1.8;
}

.guidelines-section li {
    margin-bottom: 15px;
    line-height: 1.8;
}

.guidelines-section ol li {
    margin-bottom: 12px;
}

.guidelines-section ol ol li {
    margin-bottom: 8px;
    line-height: 1.6;
}

/* Poster Session 样式 */
.poster-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 15px;
    margin-top: 0;
}

.poster-paper {
    background: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 12px;
    border-left: 3px solid #4472C4;
    line-height: 1.4;
    font-size: 13px;
    color: #666;
    margin-bottom: 0;
}

.poster-paper strong {
    color: #333;
    font-size: 14px;
    display: block;
    margin-bottom: 6px;
    line-height: 1.3;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .paper-item {
        flex-direction: column;
    }
    
    .paper-time {
        min-width: auto;
        margin-bottom: 5px;
        padding-right: 0;
    }
    
    .session-title {
        font-size: 14px;
        padding: 12px 15px;
    }
    
    .section-title {
        font-size: 20px;
    }
    
    .details-section {
        padding: 15px;
    }
    
    .poster-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .poster-paper {
        padding: 10px;
    }
    
    .poster-paper strong {
        font-size: 13px;
    }
}