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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px;
    text-align: center;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.header .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
}

.tab {
    flex: 1;
    padding: 15px 20px;
    text-align: center;
    cursor: pointer;
    background: #f8f9fa;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: #6c757d;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
}

.tab:hover {
    background: #e9ecef;
    color: #495057;
}

.tab.active {
    background: white;
    color: #667eea;
    border-bottom: 3px solid #667eea;
}

.content {
    padding: 40px;
}

.tab-content {
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.section {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.section h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #495057;
    border-left: 4px solid #667eea;
    padding-left: 12px;
}

.section h4 {
    font-size: 1.2rem;
    margin: 20px 0 10px 0;
    color: #6c757d;
}

.topic-theme, .topic-desc, .script-category {
    margin-bottom: 12px;
    padding: 12px;
    background: white;
    border-radius: 6px;
}

.point-item {
    margin-bottom: 15px;
    padding: 15px;
    background: white;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.inspiration-item {
    border-left-color: #10b981;
}

.purpose-item {
    border-left-color: #3b82f6;
}

.keypoint-item {
    border-left-color: #8b5cf6;
}

.point-header {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.point-number {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 3px 10px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.point-text {
    flex: 1;
    font-size: 1.05rem;
    font-weight: 600;
    color: #1f2937;
}

.point-description {
    margin-top: 8px;
    padding: 10px 12px;
    background: #f9fafb;
    border-radius: 4px;
    font-size: 0.95rem;
    color: #4b5563;
    line-height: 1.6;
}

.point-features, .point-scoring {
    margin-top: 12px;
    padding: 10px 12px;
    background: #f0f9ff;
    border-radius: 4px;
    font-size: 0.9rem;
}

.point-features strong, .point-scoring strong {
    display: block;
    margin-bottom: 8px;
    color: #1e40af;
}

.feature-tags, .scoring-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    background: white;
    border: 1px solid #dbeafe;
    border-radius: 4px;
    font-size: 0.85rem;
    color: #1e40af;
}

.feature-dimension {
    font-style: normal;
    color: #6b7280;
    font-size: 0.8rem;
}

.feature-weight {
    color: #dc2626;
    font-size: 0.8rem;
}

.dimension-tags {
    display: flex;
    gap: 6px;
    align-items: center;
}

.dimension-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.dimension-tag.level-1 {
    background: #dbeafe;
    color: #1e40af;
}

.dimension-tag.level-2 {
    background: #fef3c7;
    color: #92400e;
}

.dimension-tag.keypoint-dimension {
    background: #f3e8ff;
    color: #6b21a8;
}

.scoring-badge {
    display: inline-block;
    padding: 5px 12px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    font-size: 0.85rem;
    color: #374151;
}

.scoring-badge.total-score {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    font-weight: 600;
}

.paragraph-list {
    list-style: none;
    margin-left: 0;
}

.paragraph-list:not(.level-0) {
    margin-left: 30px;
    margin-top: 10px;
    padding-left: 15px;
    position: relative;
}

.paragraph-list:not(.level-0)::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 15px;
    width: 2px;
    background: #dee2e6;
}

.paragraph-item {
    margin-bottom: 15px;
    padding: 15px;
    background: white;
    border-radius: 6px;
    border-left: 4px solid #667eea;
}

.paragraph-header {
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    justify-content: space-between;
}

.paragraph-header-content {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    flex: 1;
    min-width: 0;
}

.paragraph-item.collapsible .paragraph-header {
    cursor: pointer;
    user-select: none;
}

.paragraph-item.collapsible .paragraph-header:hover {
    background-color: #f8f9fa;
    padding: 8px;
    margin: -8px -8px 2px -8px;
    border-radius: 4px;
}

.toggle-icon {
    font-size: 0.8rem;
    color: #667eea;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.paragraph-item.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.collapsible-content {
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 10000px;
    opacity: 1;
}

.paragraph-item.collapsed .collapsible-content {
    max-height: 0;
    opacity: 0;
    margin: 0;
}

.paragraph-index {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-weight: 600;
    margin-right: 10px;
    flex-shrink: 0;
}

.paragraph-desc {
    color: #495057;
    font-weight: 500;
}

.paragraph-content, .paragraph-reason {
    margin-top: 8px;
    padding: 10px 12px;
    background: #f1f3f5;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #495057;
    line-height: 1.6;
    border-left: 3px solid #adb5bd;
}

.content-range-list {
    list-style: none;
    margin: 8px 0 0 0;
    padding: 0;
}

.content-range-list li {
    padding: 6px 12px;
    margin: 4px 0;
    background: white;
    border-radius: 4px;
    border-left: 3px solid #667eea;
}

.content-range-list li:before {
    content: "▪ ";
    color: #667eea;
    font-weight: bold;
    margin-right: 8px;
}

.details-toggle-btn {
    padding: 6px 12px;
    background: #e3f2fd;
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    color: #1976d2;
    font-weight: 500;
    font-size: 0.85rem;
    transition: background 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.details-toggle-btn:hover {
    background: #bbdefb;
}

.details-icon {
    display: inline-block;
    transition: transform 0.3s ease;
    margin-right: 5px;
}

.paragraph-details:not(.collapsed) .details-icon {
    transform: rotate(90deg);
}

.details-content {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease, margin-top 0.3s ease;
}

.paragraph-details:not(.collapsed) .details-content {
    max-height: 5000px;
    opacity: 1;
    margin-top: 10px;
}

.paragraph-details {
    margin-top: 10px;
}

.related-images {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.image-item {
    position: relative;
    background: white;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.image-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

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

.image-label {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(102, 126, 234, 0.9);
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    backdrop-filter: blur(4px);
}

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

.category-item {
    margin-bottom: 15px;
    padding: 15px;
    background: white;
    border-radius: 6px;
    border-left: 4px solid #667eea;
}

.category-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
}

.category-definition {
    font-size: 0.95rem;
    color: #6c757d;
    line-height: 1.6;
}

/* Tab3 元素列表样式 */
.global-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

/* 颜色图例样式 */
.color-legend {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.legend-title {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 500;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    color: white;
}

.legend-item::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 2px;
    margin-right: 6px;
}

.legend-coverage {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 1px solid #10b981;
}

.legend-coverage::before {
    background: #10b981;
}

.legend-frequency {
    background: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
    border: 1px solid #3b82f6;
}

.legend-frequency::before {
    background: #3b82f6;
}

.legend-similarity {
    background: rgba(139, 92, 246, 0.15);
    color: #8b5cf6;
    border: 1px solid #8b5cf6;
}

.legend-similarity::before {
    background: #8b5cf6;
}

.control-btn {
    padding: 8px 16px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.control-btn:hover {
    background: #5568d3;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.category-group {
    margin-bottom: 30px;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.category-group.collapsible .category-header {
    cursor: pointer;
    user-select: none;
}

.category-group.collapsible .category-header:hover {
    background: #f8f9fa;
    margin: -10px;
    padding: 10px;
    border-radius: 6px;
}

.category-header {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e9ecef;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.category-toggle-icon {
    font-size: 0.8rem;
    color: #667eea;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.category-group.collapsed .category-toggle-icon {
    transform: rotate(-90deg);
}

.category-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #667eea;
    margin: 0;
    flex-shrink: 0;
}

.category-stats {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.category-content {
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 10000px;
    opacity: 1;
}

.category-group.collapsed .category-content {
    max-height: 0;
    opacity: 0;
}

.element-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.element-item {
    margin-bottom: 12px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid #667eea;
    transition: all 0.2s;
}

/* 主导因素边框颜色 - 覆盖率主导（绿色系） */
.element-item.dominant-coverage {
    border-left: 4px solid #10b981;
    background: linear-gradient(to right, rgba(16, 185, 129, 0.05), transparent);
}

/* 主导因素边框颜色 - 频次主导（蓝色系） */
.element-item.dominant-frequency {
    border-left: 4px solid #3b82f6;
    background: linear-gradient(to right, rgba(59, 130, 246, 0.05), transparent);
}

/* 主导因素边框颜色 - 相似度主导（紫色系） */
.element-item.dominant-similarity {
    border-left: 4px solid #8b5cf6;
    background: linear-gradient(to right, rgba(139, 92, 246, 0.05), transparent);
}

.element-item:hover {
    background: #e9ecef;
}

.element-header {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    cursor: pointer;
    user-select: none;
}

.element-toggle-icon {
    font-size: 0.7rem;
    color: #667eea;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.element-item.expanded .element-toggle-icon {
    transform: rotate(90deg);
}

.element-name {
    font-size: 1rem;
    font-weight: 600;
    color: #495057;
    flex-shrink: 0;
}

.element-stats {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-left: auto;
}

.element-description {
    margin-top: 8px;
    font-size: 0.9rem;
    color: #6c757d;
    line-height: 1.5;
}

.element-details {
    margin-top: 10px;
    padding: 15px;
    background: white;
    border-radius: 6px;
    border: 1px solid #dee2e6;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 5000px;
    opacity: 1;
}

.element-details.collapsed {
    max-height: 0;
    opacity: 0;
    padding: 0;
    margin: 0;
    border: none;
}

.detail-section {
    margin-bottom: 15px;
}

.detail-section:last-child {
    margin-bottom: 0;
}

.detail-section strong {
    display: block;
    margin-bottom: 8px;
    color: #495057;
    font-size: 0.9rem;
}

.detail-content {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.detail-tag {
    display: inline-block;
    padding: 4px 10px;
    background: #e9ecef;
    border-radius: 4px;
    font-size: 0.85rem;
    color: #495057;
}

.score-type {
    font-weight: 600;
    color: #667eea;
    margin: 10px 0 5px 0;
    font-size: 0.9rem;
}

.score-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.score-item {
    padding: 8px 12px;
    background: #f8f9fa;
    border-radius: 4px;
    border-left: 3px solid #667eea;
}

.score-point {
    font-size: 0.9rem;
    color: #495057;
    margin-bottom: 5px;
}

.score-values {
    display: flex;
    gap: 8px;
}

.score-badge {
    display: inline-block;
    padding: 2px 8px;
    background: #e3f2fd;
    border: 1px solid #90caf9;
    border-radius: 3px;
    font-size: 0.75rem;
    color: #1976d2;
}

.stat-badge {
    display: inline-block;
    padding: 3px 10px;
    background: #667eea;
    color: white;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

/* 不同类型的统计badge颜色 */
.stat-badge.stat-coverage {
    background: #6b7280;
}

.stat-badge.stat-frequency {
    background: #6b7280;
}

.stat-badge.stat-similarity {
    background: #6b7280;
}

/* 高亮状态 - 主导因素 */
.stat-badge.stat-highlight.stat-coverage {
    background: #10b981;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
}

.stat-badge.stat-highlight.stat-frequency {
    background: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

.stat-badge.stat-highlight.stat-similarity {
    background: #8b5cf6;
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.3);
}

.detail-text {
    padding: 10px 12px;
    background: #f1f3f5;
    border-radius: 4px;
    font-size: 0.9rem;
    color: #495057;
    line-height: 1.6;
    border-left: 3px solid #adb5bd;
}

.score-reasons {
    margin-top: 8px;
    padding: 8px 12px;
    background: #f9fafb;
    border-radius: 4px;
    border-left: 2px solid #dee2e6;
}

.score-reason {
    font-size: 0.85rem;
    color: #6c757d;
    line-height: 1.5;
    margin-bottom: 6px;
}

.score-reason:last-child {
    margin-bottom: 0;
}

.score-reason strong {
    color: #495057;
}

/* 新增：元素ID样式 */
.element-id {
    display: inline-block;
    background: #6c757d;
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 8px;
    flex-shrink: 0;
}

/* 维度标签样式 */
.dimension-level1 {
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

.dimension-level2 {
    background: #f3e5f5;
    color: #7b1fa2;
    border: 1px solid #ce93d8;
}

/* 分类标签样式 */
.category-level1 {
    background: #e3f2fd;
    color: #1565c0;
    border: 1px solid #90caf9;
}

.category-level2 {
    background: #fff3e0;
    color: #e65100;
    border: 1px solid #ffcc80;
}

/* 来源标签样式 */
.source-tag {
    background: #fce4ec;
    color: #c2185b;
    border: 1px solid #f48fb1;
}

/* 段落ID标签样式 */
.para-id-tag {
    background: #667eea;
    color: white;
    font-weight: 600;
}

/* 出现段落详情列表样式 */
.paragraphs-detail-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.paragraph-detail-item {
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid #667eea;
}

.para-how {
    margin-top: 8px;
    font-size: 0.9rem;
    color: #495057;
    line-height: 1.5;
    padding: 8px 12px;
    background: white;
    border-radius: 4px;
}

.footer {
    background: #f8f9fa;
    padding: 20px;
    text-align: center;
    color: #6c757d;
    border-top: 1px solid #dee2e6;
}

/* 层级结构样式 */
.level1-section {
    margin-bottom: 30px;
}

.level1-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 8px;
    cursor: pointer;
    user-select: none;
    transition: all 0.3s;
}

.level1-header:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.level1-header.collapsed {
    opacity: 0.8;
}

.level1-title {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.level1-content {
    padding: 20px 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.4s ease;
    max-height: 100000px;
    opacity: 1;
}

.level1-header.collapsed + .level1-content {
    max-height: 0;
    opacity: 0;
    padding: 0;
}

.level2-section {
    margin-bottom: 25px;
    padding: 0 15px;
}

.level2-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s;
}

.level2-header:hover {
    background: #e9ecef;
}

.level2-header.collapsed {
    opacity: 0.7;
}

.level2-title {
    color: #495057;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

.level2-content {
    padding: 15px 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 100000px;
    opacity: 1;
}

.level2-header.collapsed + .level2-content {
    max-height: 0;
    opacity: 0;
    padding: 0;
}

.level-toggle-icon {
    font-size: 1rem;
    color: inherit;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.collapsed .level-toggle-icon {
    transform: rotate(-90deg);
}

.category-group {
    margin: 15px 0 15px 20px;
}

/* 二级分类样式 */
.subcategory-group {
    margin: 10px 0 10px 20px;
    padding: 15px;
    background: #fafafa;
    border-radius: 6px;
    border-left: 3px solid #a5b4fc;
}

.subcategory-group.collapsible .subcategory-header {
    cursor: pointer;
    user-select: none;
}

.subcategory-group.collapsible .subcategory-header:hover {
    background: #f0f0f0;
    margin: -8px;
    padding: 8px;
    border-radius: 4px;
}

.subcategory-header {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.subcategory-toggle-icon {
    font-size: 0.7rem;
    color: #a5b4fc;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.subcategory-group.collapsed .subcategory-toggle-icon {
    transform: rotate(-90deg);
}

.subcategory-title {
    font-size: 1rem;
    font-weight: 600;
    color: #6366f1;
    margin: 0;
}

.subcategory-stats {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.subcategory-content {
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 10000px;
    opacity: 1;
}

.subcategory-group.collapsed .subcategory-content {
    max-height: 0;
    opacity: 0;
}

.stat-badge-small {
    display: inline-block;
    padding: 2px 8px;
    background: #a5b4fc;
    color: white;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 500;
    white-space: nowrap;
}

/* ===== 新增字段样式 ===== */

/* 类型标签 */
.type-tag {
    background: #e0f2fe;
    color: #0369a1;
    border: 1px solid #7dd3fc;
    font-weight: 600;
}

/* 推理层次标签 */
.level-tag {
    background: #fef3c7;
    color: #d97706;
    border: 1px solid #fcd34d;
    font-weight: 600;
}

/* 依附于标签 */
.depends-tag {
    background: #fce7f3;
    color: #be185d;
    border: 1px solid #f9a8d4;
}

/* 映射关系容器 */
.mapping-container {
    padding: 10px 0;
}

.mapping-group {
    margin-bottom: 12px;
    padding: 10px 12px;
    background: #f9fafb;
    border-radius: 4px;
    border-left: 3px solid #9ca3af;
}

.mapping-group:last-child {
    margin-bottom: 0;
}

.mapping-label {
    display: block;
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
    font-size: 0.85rem;
}

/* 映射关系标签 */
.mapping-tag {
    background: #ede9fe;
    color: #6b21a8;
    border: 1px solid #c4b5fd;
    font-weight: 600;
}

/* ===== 元素锚点系统 - 模态框样式 ===== */

/* 模态框背景遮罩 */
.element-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: fadeIn 0.2s ease;
}

/* 模态框内容容器 */
.element-modal-content {
    background: white;
    border-radius: 12px;
    padding: 0;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 模态框头部 */
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 2px solid #e9ecef;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px 12px 0 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
}

/* 模态框关闭按钮 */
.modal-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 1.5rem;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

/* 模态框主体 */
.modal-body {
    padding: 24px;
}

.modal-section {
    margin-bottom: 16px;
}

.modal-section:last-child {
    margin-bottom: 0;
}

.modal-section strong {
    display: block;
    margin-bottom: 8px;
    color: #495057;
    font-size: 0.9rem;
}

.modal-section p {
    margin: 0;
    color: #6c757d;
    line-height: 1.6;
}

/* 模态框底部 */
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #e9ecef;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* 模态框按钮 */
.modal-btn {
    padding: 10px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.modal-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* 高亮动画（用于跳转后的元素高亮） */
.highlight-pulse {
    animation: highlightPulse 2s ease;
}

@keyframes highlightPulse {
    0%, 100% {
        background: #f8f9fa;
    }
    50% {
        background: rgba(102, 126, 234, 0.2);
        box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.3);
    }
}

/* ===== Tab4 关系图样式 ===== */

/* 关系图容器 */
.relationship-container {
    display: flex;
    gap: 20px;
    min-height: 600px;
    position: relative;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
}

/* 左侧实质点列表 */
.substance-column {
    flex: 0 0 300px;
    display: flex;
    flex-direction: column;
}

/* 中间连线区域 */
.connection-column {
    flex: 1;
    min-width: 200px;
    position: relative;
}

/* 右侧目标点列表 */
.target-column {
    flex: 0 0 350px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 列标题 */
.column-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #495057;
    margin-bottom: 15px;
    padding: 10px;
    background: white;
    border-radius: 6px;
    text-align: center;
    border-left: 4px solid #667eea;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: #495057;
    margin-bottom: 10px;
    padding: 8px 12px;
    background: white;
    border-radius: 6px;
    border-left: 3px solid #667eea;
}

/* 节点列表 */
.node-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    max-height: calc(100vh - 300px);
    padding-right: 5px;
}

/* 自定义滚动条 */
.node-list::-webkit-scrollbar {
    width: 6px;
}

.node-list::-webkit-scrollbar-track {
    background: #e9ecef;
    border-radius: 3px;
}

.node-list::-webkit-scrollbar-thumb {
    background: #adb5bd;
    border-radius: 3px;
}

.node-list::-webkit-scrollbar-thumb:hover {
    background: #6c757d;
}

/* 节点基础样式 */
.node {
    padding: 12px 15px;
    background: white;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
}

.node:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 实质点节点 */
.substance-node {
    border-left: 4px solid #667eea;
}

.substance-node:hover {
    border-left-color: #5568d3;
    background: linear-gradient(to right, rgba(102, 126, 234, 0.05), white);
}

.substance-node.highlighted {
    background: linear-gradient(to right, rgba(102, 126, 234, 0.15), rgba(102, 126, 234, 0.05));
    border-left-color: #5568d3;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
}

/* 目标点节点 */
.target-node {
    border-left: 4px solid #adb5bd;
}

/* 灵感点节点 */
.inspiration-node {
    border-left-color: #10b981;
}

.inspiration-node.highlighted {
    background: linear-gradient(to right, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.05));
    border-left-color: #059669;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

/* 目的点节点 */
.purpose-node {
    border-left-color: #3b82f6;
}

.purpose-node.highlighted {
    background: linear-gradient(to right, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.05));
    border-left-color: #2563eb;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

/* 关键点节点 */
.keypoint-node {
    border-left-color: #8b5cf6;
}

.keypoint-node.highlighted {
    background: linear-gradient(to right, rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.05));
    border-left-color: #7c3aed;
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}

/* 节点内容样式 */
.node-id, .node-number {
    display: inline-block;
    background: #6c757d;
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.node-name, .node-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: #495057;
    line-height: 1.4;
}

.node-dimension {
    font-size: 0.8rem;
    color: #6c757d;
    margin-top: 4px;
}

/* SVG 连线样式 */
.relationship-svg {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
}

.connection-line {
    stroke-width: 2;
    opacity: 0.3;
    transition: all 0.3s;
}

.connection-line.highlighted {
    stroke-width: 3;
    opacity: 1;
}

/* 不同类型连线颜色 */
.connection-line.inspiration {
    stroke: #10b981;
}

.connection-line.purpose {
    stroke: #3b82f6;
}

.connection-line.keypoint {
    stroke: #8b5cf6;
}

/* 连线标签（显示相似度） */
.connection-label {
    font-size: 0.7rem;
    fill: #6c757d;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.connection-label.highlighted {
    opacity: 1;
}

/* 目标区域 */
.target-section {
    background: white;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* 空状态 */
.empty-state {
    padding: 60px 40px;
    text-align: center;
    color: #6c757d;
    font-size: 1.1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* ===== Tab4 新增交互样式 ===== */

/* 顶部标题和重置按钮 */
.tab4-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.tab4-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #495057;
}

.reset-btn {
    padding: 8px 16px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.reset-btn:hover {
    background: #5568d3;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 实质点选中状态 */
.substance-node.selected {
    background: linear-gradient(to right, rgba(102, 126, 234, 0.2), rgba(102, 126, 234, 0.08));
    border-left-color: #5568d3;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
    transform: scale(1.02);
}

/* 实质点变暗状态（未选中时） */
.substance-node.dimmed {
    opacity: 0.4;
    filter: grayscale(0.5);
}

.substance-node.dimmed:hover {
    opacity: 0.6;
}

/* 右侧节点隐藏状态 */
.target-node.hidden {
    display: none;
}

.target-node.visible {
    display: block;
    animation: fadeInNode 0.3s ease;
}

@keyframes fadeInNode {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Section的隐藏和显示 */
.target-section.all-hidden {
    display: none;
}

.target-section.has-visible-nodes {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* 关联实质点节点样式 */
.substance-related-node {
    border-left-color: #f59e0b;
    cursor: pointer;
}

.substance-related-node:hover {
    border-left-color: #d97706;
    background: linear-gradient(to right, rgba(245, 158, 11, 0.1), white);
}

.substance-related-node.visible {
    background: linear-gradient(to right, rgba(245, 158, 11, 0.08), white);
}

/* 实质点之间的连线样式 */
.connection-line.substance {
    stroke: #f59e0b;
    stroke-dasharray: 5, 5;
}

.connection-line.substance.highlighted {
    stroke-width: 3;
    opacity: 0.8;
}

/* ===== Tab5 形式点关系图样式 ===== */

/* 顶部标题和重置按钮 */
.tab5-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.tab5-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #495057;
}

/* 形式点节点样式 */
.form-column {
    flex: 0 0 300px;
    display: flex;
    flex-direction: column;
}

.form-node {
    border-left: 4px solid #8b5cf6;
}

.form-node:hover {
    border-left-color: #7c3aed;
    background: linear-gradient(to right, rgba(139, 92, 246, 0.05), white);
}

.form-node.selected {
    background: linear-gradient(to right, rgba(139, 92, 246, 0.2), rgba(139, 92, 246, 0.08));
    border-left-color: #7c3aed;
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.4);
    transform: scale(1.02);
}

.form-node.dimmed {
    opacity: 0.4;
    filter: grayscale(0.5);
}

.form-node.dimmed:hover {
    opacity: 0.6;
}

/* 关联形式点节点样式 */
.form-related-node {
    border-left-color: #ec4899;
    cursor: pointer;
}

.form-related-node:hover {
    border-left-color: #db2777;
    background: linear-gradient(to right, rgba(236, 72, 153, 0.1), white);
}

.form-related-node.visible {
    background: linear-gradient(to right, rgba(236, 72, 153, 0.08), white);
}

/* 形式点之间的连线样式 */
.connection-line.form {
    stroke: #ec4899;
    stroke-dasharray: 5, 5;
}

.connection-line.form.highlighted {
    stroke-width: 3;
    opacity: 0.8;
}

/* ===== Tab4 新版支撑关系图样式 ===== */

/* 顶部说明区域 */
.tab4-description {
    margin-top: 10px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #667eea;
}

.tab4-description p {
    margin: 0 0 10px 0;
    color: #495057;
    font-size: 0.95rem;
}

.relationship-rules {
    list-style: none;
    padding: 0;
    margin: 0;
}

.relationship-rules li {
    padding: 6px 0;
    color: #6c757d;
    font-size: 0.9rem;
}

.relationship-rules li::before {
    content: "→";
    color: #667eea;
    margin-right: 8px;
    font-weight: bold;
}

/* 支撑关系主容器 */
.support-view-container {
    display: grid;
    grid-template-columns: 300px 1fr 350px;
    gap: 20px;
    min-height: 700px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
}

/* 左侧实质点面板 */
.substance-panel {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.panel-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #495057;
    padding: 12px;
    background: white;
    border-radius: 6px;
    text-align: center;
    border-left: 4px solid #667eea;
    margin: 0;
}

/* 实质点分组 */
.substance-group {
    background: white;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.group-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: #667eea;
    margin: 0 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 2px solid #e9ecef;
}

.substance-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 5px;
}

/* 实质点卡片 */
.substance-card {
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid #adb5bd;
    cursor: pointer;
    transition: all 0.2s;
}

.substance-card:hover {
    background: #e9ecef;
    transform: translateX(3px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.substance-card.concrete-element {
    border-left-color: #10b981;
}

.substance-card.concrete-concept {
    border-left-color: #3b82f6;
}

.substance-card.abstract-concept {
    border-left-color: #8b5cf6;
}

.substance-card.selected {
    background: linear-gradient(to right, rgba(102, 126, 234, 0.15), rgba(102, 126, 234, 0.05));
    border-left-color: #667eea;
    border-left-width: 4px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.substance-card.dimmed {
    opacity: 0.3;
    filter: grayscale(0.7);
}

.substance-card.hidden {
    display: none;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.card-id {
    display: inline-block;
    background: #6c757d;
    color: white;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 600;
    flex-shrink: 0;
}

.card-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: #495057;
    flex: 1;
    line-height: 1.3;
}

.card-description {
    margin-top: 6px;
    font-size: 0.75rem;
    color: #6c757d;
    line-height: 1.4;
}

/* 卡片推理信息样式 */
.card-reasoning {
    margin-top: 8px;
    padding: 8px 10px;
    background: rgba(139, 92, 246, 0.05);
    border-left: 2px solid #8b5cf6;
    border-radius: 4px;
}

.reasoning-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: #8b5cf6;
    margin-bottom: 4px;
}

.reasoning-text {
    font-size: 0.72rem;
    color: #495057;
    line-height: 1.5;
    font-style: italic;
}

/* 中间可视化面板 */
.support-visualization-panel {
    position: relative;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.support-canvas {
    width: 100%;
    height: 100%;
    position: relative;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-text {
    font-size: 1rem;
    color: #adb5bd;
    text-align: center;
    padding: 40px;
}

/* 右侧目标点面板 */
.target-panel {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 目标点分组 */
.target-group {
    background: white;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.target-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 5px;
}

/* 目标点卡片 */
.target-card {
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid #adb5bd;
    cursor: pointer;
    transition: all 0.2s;
}

.target-card:hover {
    background: #e9ecef;
    transform: translateX(-3px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.target-card.inspiration-card {
    border-left-color: #10b981;
}

.target-card.keypoint-card {
    border-left-color: #8b5cf6;
}

.target-card.purpose-card {
    border-left-color: #3b82f6;
}

.target-card.selected {
    background: linear-gradient(to right, rgba(102, 126, 234, 0.15), rgba(102, 126, 234, 0.05));
    border-left-color: #667eea;
    border-left-width: 4px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.target-card.dimmed {
    opacity: 0.3;
    filter: grayscale(0.7);
}

.target-card.hidden {
    display: none;
}

.card-number {
    display: inline-block;
    background: #6c757d;
    color: white;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.card-text {
    font-size: 0.85rem;
    font-weight: 500;
    color: #495057;
    line-height: 1.4;
}

/* 支撑关系流程图样式 */
.support-flow {
    padding: 30px;
    animation: fadeIn 0.5s ease;
}

.flow-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 25px;
    text-align: center;
    padding: 15px;
    background: linear-gradient(to right, rgba(102, 126, 234, 0.1), transparent);
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.flow-source {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.flow-node {
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    min-width: 200px;
}

.substance-flow-node {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.target-flow-node {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.flow-node-label {
    font-size: 0.85rem;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 8px;
}

.flow-node-name {
    font-size: 1.1rem;
    font-weight: 700;
}

.flow-targets {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.flow-target-group {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #adb5bd;
}

.flow-target-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: #495057;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e9ecef;
}

.flow-target-item {
    padding: 12px 15px;
    margin-bottom: 10px;
    background: white;
    border-radius: 6px;
    border-left: 4px solid #adb5bd;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.flow-target-item:last-child {
    margin-bottom: 0;
}

.flow-target-item.inspiration-flow {
    border-left-color: #10b981;
    background: linear-gradient(to right, rgba(16, 185, 129, 0.05), white);
}

.flow-target-item.purpose-flow {
    border-left-color: #3b82f6;
    background: linear-gradient(to right, rgba(59, 130, 246, 0.05), white);
}

.flow-target-item.keypoint-flow {
    border-left-color: #8b5cf6;
    background: linear-gradient(to right, rgba(139, 92, 246, 0.05), white);
}

.flow-target-item.concrete-element-flow {
    border-left-color: #10b981;
    background: linear-gradient(to right, rgba(16, 185, 129, 0.05), white);
}

.flow-target-item.concrete-concept-flow {
    border-left-color: #3b82f6;
    background: linear-gradient(to right, rgba(59, 130, 246, 0.05), white);
}

.flow-target-item.abstract-concept-flow {
    border-left-color: #8b5cf6;
    background: linear-gradient(to right, rgba(139, 92, 246, 0.05), white);
}

.flow-target-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: #495057;
    margin-bottom: 6px;
    line-height: 1.4;
}

.flow-target-score {
    font-size: 0.8rem;
    color: #6c757d;
    font-weight: 600;
}

/* 目标点卡片高亮状态 */
.target-card.highlighted {
    background: linear-gradient(to right, rgba(102, 126, 234, 0.1), rgba(102, 126, 234, 0.03));
    border-left-width: 4px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

/* 实质点卡片高亮状态 */
.substance-card.highlighted {
    background: linear-gradient(to right, rgba(102, 126, 234, 0.1), rgba(102, 126, 234, 0.03));
    border-left-width: 4px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

/* ===== Tab5 实质与形式双向支撑关系图样式 ===== */

/* Tab5说明区域 */
.tab5-description {
    margin-top: 10px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #8b5cf6;
}

.tab5-description p {
    margin: 0 0 10px 0;
    color: #495057;
    font-size: 0.95rem;
}

/* Tab5 4列布局容器 */
.tab5-four-column-container {
    display: grid;
    grid-template-columns: 280px 280px 280px 280px;
    gap: 15px;
    min-height: 700px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
}

/* Tab5 列样式 */
.tab5-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tab5-left-targets {
    /* 左侧选题点列（实质支撑） */
}

.tab5-substances {
    /* 中左实质点列 */
}

.tab5-forms {
    /* 中右形式点列 */
}

.tab5-right-targets {
    /* 右侧选题点列（形式支撑） */
}

/* 形式点面板 */
.form-panel {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 形式点分组 */
.form-group {
    background: white;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.form-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 5px;
}

/* 形式点卡片 */
.form-card {
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid #adb5bd;
    cursor: pointer;
    transition: all 0.2s;
}

.form-card:hover {
    background: #e9ecef;
    transform: translateX(3px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.form-card.concrete-element-form {
    border-left-color: #f59e0b;
}

.form-card.concrete-concept-form {
    border-left-color: #ec4899;
}

.form-card.overall-form {
    border-left-color: #8b5cf6;
}

.form-card.selected {
    background: linear-gradient(to right, rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.05));
    border-left-color: #8b5cf6;
    border-left-width: 4px;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.form-card.dimmed {
    opacity: 0.3;
    filter: grayscale(0.7);
}

.form-card.hidden {
    display: none;
}

.form-card.highlighted {
    background: linear-gradient(to right, rgba(139, 92, 246, 0.1), rgba(139, 92, 246, 0.03));
    border-left-width: 4px;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

/* 实质点卡片（在tab5中作为目标） */
.substance-card.concrete-element-card {
    border-left-color: #10b981;
}

.substance-card.concrete-concept-card {
    border-left-color: #3b82f6;
}

.substance-card.abstract-concept-card {
    border-left-color: #8b5cf6;
}

/* 实质点项列表 */
/* 已移除max-height限制，所有元素平铺显示 */

/* 形式点流程节点样式 */
.form-flow-node {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
}

/* 形式点流程目标项样式 */
.flow-target-item.concrete-element-form-flow {
    border-left-color: #f59e0b;
    background: linear-gradient(to right, rgba(245, 158, 11, 0.05), white);
}

.flow-target-item.concrete-concept-form-flow {
    border-left-color: #ec4899;
    background: linear-gradient(to right, rgba(236, 72, 153, 0.05), white);
}

.flow-target-item.overall-form-flow {
    border-left-color: #8b5cf6;
    background: linear-gradient(to right, rgba(139, 92, 246, 0.05), white);
}

.flow-target-item.form-flow {
    border-left-color: #8b5cf6;
    background: linear-gradient(to right, rgba(139, 92, 246, 0.05), white);
}

/* ===== Tab5 连线SVG容器样式 ===== */

.tab5-svg-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

#tab5-connection-svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

/* Tab5 4列容器需要relative定位 */
.tab5-four-column-container {
    position: relative;
    z-index: 1;
}

/* Tab5 连线样式 */
.tab5-connection-line {
    fill: none;
    stroke-width: 2;
    opacity: 0.4;
    transition: all 0.3s ease;
    pointer-events: stroke;
}

/* 左侧选题点到实质点的连线 */
.tab5-connection-line.left-target-substance {
    stroke: #667eea;
}

/* 实质点到形式点的连线 */
.tab5-connection-line.substance-form {
    stroke: #f59e0b;
    stroke-dasharray: 5, 3;
}

/* 形式点到右侧灵感点的连线 */
.tab5-connection-line.form-inspiration {
    stroke: #10b981;
}

/* 形式点到右侧目的点的连线 */
.tab5-connection-line.form-purpose {
    stroke: #3b82f6;
}

/* 形式点到右侧关键点的连线 */
.tab5-connection-line.form-keypoint {
    stroke: #8b5cf6;
}

/* 连线hover效果（已在JS中定义） */
.tab5-connection-line:hover {
    opacity: 0.8;
    stroke-width: 4;
    filter: drop-shadow(0 0 6px rgba(0,0,0,0.3));
}

/* ===== Tab5 连线详情模态框样式 ===== */

.connection-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    animation: fadeIn 0.2s ease;
}

.connection-modal-content {
    background: white;
    border-radius: 12px;
    padding: 0;
    max-width: 550px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
    animation: slideUp 0.3s ease;
}

.connection-detail-section {
    margin-bottom: 18px;
    padding: 12px 0;
    border-bottom: 1px solid #e9ecef;
}

.connection-detail-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.connection-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 6px;
    display: block;
}

.connection-value {
    font-size: 0.95rem;
    color: #495057;
    line-height: 1.6;
    padding-left: 10px;
}

.connection-value.score-value {
    color: #667eea;
    font-weight: 700;
    font-size: 1.1rem;
}

/* ===== Tab5标题区域样式 ===== */

.tab5-header {
    margin-bottom: 20px;
}

.tab5-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #495057;
    margin: 0 0 10px 0;
}

.tab5-description p {
    margin: 8px 0;
    font-size: 0.95rem;
    color: #495057;
    line-height: 1.6;
}