/* ARP Module Styles - 飞机路径恢复模块样式 */
.arp-navbar {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.arp-brand {
    font-size: 1.3rem;
    font-weight: 600;
    color: white !important;
    text-decoration: none;
}

.arp-brand:hover {
    color: #3498db !important;
}

.arp-nav .nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    margin: 0 0.5rem;
    border-radius: 6px;
    padding: 0.5rem 1rem;
}

.arp-nav .nav-link:hover,
.arp-nav .nav-link.active {
    color: #3498db !important;
    background: rgba(52, 152, 219, 0.1);
}

.arp-hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px 0;
    margin-top: 76px;
    position: relative;
    overflow: hidden;
}

.arp-hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.arp-hero-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
}

.arp-hero-description {
    font-size: 1.1rem;
    line-height: 1.7;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.95;
}

.arp-content {
    margin-top: 3rem;
    margin-bottom: 4rem;
}

.arp-section {
    margin-bottom: 4rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    padding: 3rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-icon {
    color: var(--secondary-color);
    margin-right: 1rem;
}

.content-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.intro-paragraph {
    text-align: justify;
    margin-bottom: 1.5rem;
    text-indent: 2em;
}

.highlight-box {
    background: linear-gradient(135deg, #fff3cd, #ffeaa7);
    border-left: 4px solid #f39c12;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
    display: flex;
    align-items: center;
}

.highlight-icon {
    font-size: 2rem;
    color: #f39c12;
    margin-right: 1rem;
    flex-shrink: 0;
}

.highlight-text {
    font-weight: 600;
    margin: 0;
    font-size: 1.1rem;
}

.image-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}

.section-image {
    width: 100%;
    height: auto;
    transition: transform 0.4s ease;
}

.image-container:hover .section-image {
    transform: scale(1.02);
}

.image-caption {
    text-align: center;
    font-style: italic;
    color: var(--text-light);
    margin-top: 1rem;
    font-size: 0.9rem;
}

.recovery-methods {
    background: var(--background-light);
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 0;
}

.methods-title {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.methods-list {
    list-style: none;
    padding: 0;
}

.methods-list li {
    padding: 0.8rem 0;
    border-bottom: 1px solid #e9ecef;
    font-size: 1rem;
}

.methods-list li:last-child {
    border-bottom: none;
}

.methods-list li i {
    color: var(--secondary-color);
    width: 20px;
    margin-right: 0.5rem;
}

.challenge-box {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-left: 4px solid var(--secondary-color);
    padding: 2rem;
    margin: 2rem 0;
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
}

.challenge-icon {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-right: 1rem;
    flex-shrink: 0;
    margin-top: 0.5rem;
}

.challenge-content h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.challenge-content p {
    margin: 0;
    line-height: 1.6;
}

.model-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    padding: 1.5rem;
    transition: var(--transition-base);
    height: 100%;
}

.model-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.model-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.model-title {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin: 0;
}

.model-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.model-description {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

.technical-details {
    background: var(--background-light);
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 0;
}

.details-title {
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, var(--secondary-color), #667eea);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    flex-shrink: 0;
}

.feature-content h5 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.feature-content p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.summary-box {
    background: linear-gradient(135deg, #e8f5e8, #d4edda);
    border-left: 4px solid var(--success-color);
    padding: 2rem;
    margin: 2rem 0;
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
}

.summary-icon {
    font-size: 2rem;
    color: var(--success-color);
    margin-right: 1rem;
    flex-shrink: 0;
    margin-top: 0.5rem;
}

.summary-content h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.summary-content p {
    margin: 0;
    line-height: 1.6;
}

.arp-footer {
    background: var(--primary-color);
    color: white;
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-text {
    margin: 0;
    font-size: 0.9rem;
}

/* Research Paper Styles - 研究论文样式 */
.research-paper-section {
    margin-bottom: 4rem;
}

.paper-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    padding: 3rem;
    border: 1px solid #e9ecef;
}

.paper-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.paper-badge {
    background: linear-gradient(45deg, var(--secondary-color), #667eea);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.paper-year {
    background: var(--background-light);
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
}

.paper-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.paper-title a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.paper-title a:hover {
    color: var(--secondary-color);
}

.paper-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.journal-name,
.impact-factor {
    color: var(--text-light);
    font-size: 1rem;
}

.abstract-title {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.abstract-text {
    text-align: justify;
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.key-contributions {
    background: var(--background-light);
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 0;
}

.contributions-title {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contributions-list {
    list-style: none;
    padding: 0;
}

.contributions-list li {
    padding: 0.5rem 0;
    color: var(--text-dark);
}

.contributions-list li i {
    color: var(--success-color);
    margin-right: 0.5rem;
}

.methodology-overview {
    margin: 2rem 0;
}

.methodology-title {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.methodology-text {
    text-align: justify;
    line-height: 1.7;
    color: var(--text-dark);
}

.paper-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.paper-link {
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
}

.paper-link.primary {
    background: linear-gradient(45deg, var(--secondary-color), #667eea);
    color: white;
}

.paper-link.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
    color: white;
}

.paper-link.secondary {
    background: var(--background-light);
    color: var(--text-dark);
    border: 1px solid #e9ecef;
}

.paper-link.secondary:hover {
    background: white;
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

.paper-visual {
    padding-left: 2rem;
}

.research-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
}

.research-image:hover {
    transform: scale(1.02);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(52, 152, 219, 0.8);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
}

.image-container:hover .image-overlay {
    opacity: 1;
}

.overlay-icon {
    color: white;
    font-size: 2rem;
}

.paper-stats {
    background: var(--background-light);
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 2rem;
}

.stats-title {
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-align: center;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.stat-value {
    font-weight: 600;
    color: var(--text-dark);
}

/* Research Highlights Styles - 研究亮点样式 */
.research-highlights-section {
    background: var(--background-light);
    padding: 3rem;
    border-radius: var(--border-radius);
    margin-bottom: 3rem;
}

.highlight-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    text-align: center;
    transition: var(--transition-base);
    height: 100%;
}

.highlight-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow-hover);
}

.highlight-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, var(--secondary-color), #667eea);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
}

.highlight-title {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.highlight-description {
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* Future Research Styles - 未来研究样式 */
.future-research-section {
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}

.direction-card {
    background: var(--background-light);
    padding: 2rem;
    border-radius: 12px;
    transition: var(--transition-base);
    height: 100%;
}

.direction-card:hover {
    background: white;
    box-shadow: var(--card-shadow);
    transform: translateY(-3px);
}

.direction-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.direction-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, var(--secondary-color), #667eea);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 1.2rem;
}

.direction-title {
    color: var(--primary-color);
    margin: 0;
    font-size: 1.2rem;
}

.direction-description {
    color: var(--text-dark);
    line-height: 1.6;
    margin: 0;
}

/* Responsive Design for ARP Module - ARP模块响应式设计 */
@media (max-width: 768px) {
    .arp-hero-title {
        font-size: 2.2rem;
    }
    
    .arp-section {
        padding: 2rem 1rem;
    }
    
    .paper-visual {
        padding-left: 0;
        margin-top: 2rem;
    }
    
    .paper-actions {
        justify-content: center;
    }
    
    .paper-meta {
        justify-content: center;
        text-align: center;
    }
    
    .highlight-icon,
    .direction-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .direction-header {
        flex-direction: column;
        text-align: center;
    }
    
    .direction-icon {
        margin-right: 0;
        margin-bottom: 1rem;
    }
}

/* ARP Solver Specific Styles */
.system-intro-section {
    margin: 3rem 0;
}

.intro-card {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
}

.intro-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.1);
    border-color: var(--primary-color);
}

.intro-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.intro-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.intro-description {
    color: var(--text-muted);
    line-height: 1.6;
}

.data-import-section {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    margin: 3rem 0;
}

.import-controls {
    margin-top: 2rem;
}

.import-button {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.3);
}

.import-button:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.4);
    color: white;
}

.modal-form .modal-content {
    border: none;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.modal-form .modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 16px 16px 0 0;
    border: none;
}

.modal-form .modal-title {
    font-weight: 600;
}

.form-grid {
    display: grid;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 0;
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.form-text {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.btn-load-data {
    background: linear-gradient(135deg, var(--success-color), #27ae60);
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
}

.btn-load-data:hover {
    background: linear-gradient(135deg, #27ae60, var(--success-color));
    transform: translateY(-1px);
}

.analysis-dashboard {
    margin: 3rem 0;
}

.dashboard-header {
    margin-bottom: 2rem;
}

.dashboard-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
}

.visualization-panel,
.control-panel {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.panel-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.panel-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
}

.chart-container {
    width: 100%;
    min-height: 650px;
    height: 100%;
    overflow-x: scroll;
    overflow-y: hidden;
    padding: 1rem;
}

.filter-form {
    padding: 1.5rem;
}

.filter-form .form-group {
    margin-bottom: 1rem;
}

.control-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.form-control-sm {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 0.5rem;
}

.filter-button {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    padding: 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    margin-top: 1rem;
}

.filter-button:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-1px);
}

.legend-panel {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 12px;
}

.legend-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.legend-items {
    display: grid;
    gap: 0.75rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.legend-color {
    width: 20px;
    height: 12px;
    border-radius: 3px;
}

.legend-text {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.action-panel {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    padding: 2rem;
    margin: 3rem 0;
    color: white;
}

.instance-info {
    margin-bottom: 1rem;
}

.info-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
}

.info-text {
    margin: 0;
    opacity: 0.9;
    font-size: 1rem;
}

.recovery-button {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.recovery-button:hover {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Solver Responsive Design */
@media (max-width: 768px) {
    .intro-card {
        margin-bottom: 1.5rem;
    }
    
    .intro-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .data-import-section {
        padding: 2rem 1rem;
    }
    
    .import-button {
        font-size: 1rem;
        padding: 0.875rem 1.5rem;
    }
    
    .action-panel {
        text-align: center;
    }
    
    .action-panel .col-md-6 {
        margin-bottom: 1rem;
    }
    
    .recovery-button {
        display: block;
        text-align: center;
    }
    
    .chart-container {
        min-height: 400px;
    }
}