/* ================================================
   ChangoBibVis 文献计量可视化工具 - 主样式文件
   版本: 20251215_v2 - 画布高度增加20%，左侧面板与画布底部对齐
   支持主题: 白天/黑夜/科幻
   ================================================ */

/* ========== CSS变量定义 ========== */
:root {
    /* ChangoBibVis 主题色 */
    --bibvis-primary: #00b4d8;
    --bibvis-primary-light: #48cae4;
    --bibvis-primary-dark: #0096c7;
    --bibvis-secondary: #023e8a;
    --bibvis-accent: #ff6b6b;
    --bibvis-gradient: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
    
    /* 网络可视化颜色 */
    --bibvis-cluster-1: #e41a1c;
    --bibvis-cluster-2: #377eb8;
    --bibvis-cluster-3: #4daf4a;
    --bibvis-cluster-4: #984ea3;
    --bibvis-cluster-5: #ff7f00;
}

/* ========== 页面头部 - 全宽紧凑设计 ========== */
.bibvis-header {
    background: var(--bibvis-gradient);
    color: white;
    padding: 0.5rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0, 180, 216, 0.2);
    position: relative;
}

.bibvis-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
    border-radius: 0;
}

.bibvis-header .header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
    padding: 0 0.5rem;
    gap: 1rem;
}

.bibvis-header .header-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* 头部统计卡片 */
.header-stats {
    display: flex;
    gap: 1rem;
    flex: 1;
    justify-content: center;
}

.header-stat {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    backdrop-filter: blur(5px);
    cursor: default;
    transition: all 0.2s;
}

.header-stat:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.header-stat i {
    font-size: 0.7rem;
    opacity: 0.8;
}

.header-stat-value {
    font-size: 1rem;
    font-weight: 700;
    min-width: 25px;
    text-align: center;
}

.header-stat-label {
    font-size: 0.7rem;
    opacity: 0.85;
    text-transform: uppercase;
}

.bibvis-header .header-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.bibvis-header .header-actions .btn {
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
}

.bibvis-header .container {
    position: relative;
    z-index: 1;
    max-width: 100%;
    padding: 0;
}

.bibvis-header h2 {
    color: white !important;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
    display: inline-flex;
    align-items: center;
}

.bibvis-header .subtitle {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.7rem;
    margin: 0;
    display: block;
}

/* ========== 主容器布局 - 全宽设计 ========== */
.bibvis-main-container {
    display: flex;
    gap: 0.5rem;
    padding: 0 0.25rem;
    height: calc(100vh - 90px);
    min-height: 960px; /* 原800px增加20%以适应更大的画布 */
    max-width: 100%;
}

/* ========== 侧边栏 - 紧凑设计 ========== */
.bibvis-sidebar {
    width: 210px;
    min-width: 210px;
    max-width: 210px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    overflow-y: auto;
    /* 移除max-height限制，让侧边栏自动与右侧画布区域底部对齐 */
    flex: 1;
    align-self: stretch;
}

.bibvis-panel {
    background: var(--card-bg, #ffffff);
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 8px;
    padding: 0.75rem;
    box-shadow: 0 2px 6px var(--theme-shadow, rgba(0, 0, 0, 0.06));
}

.bibvis-panel-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--bibvis-primary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 0.5rem;
    padding-bottom: 0.375rem;
    border-bottom: 2px solid var(--bibvis-primary);
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.bibvis-panel-title i {
    font-size: 0.85rem;
}

/* ========== 数据导入面板 ========== */
.import-panel .file-drop-zone {
    border: 2px dashed var(--border-color, #dee2e6);
    border-radius: 8px;
    padding: 1rem 0.75rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--body-bg, #f8f9fa);
}

.import-panel .file-drop-zone:hover,
.import-panel .file-drop-zone.drag-over {
    border-color: var(--bibvis-primary);
    background: rgba(0, 180, 216, 0.05);
}

.import-panel .file-drop-zone i {
    font-size: 1.5rem;
    color: var(--bibvis-primary);
    margin-bottom: 0.375rem;
    display: block;
}

.import-panel .file-drop-zone p {
    margin: 0;
    font-size: 0.75rem;
    color: var(--secondary-color, #6c757d);
}

.import-panel .format-hint {
    font-size: 0.65rem;
    color: var(--secondary-color, #6c757d);
    margin-top: 0.375rem;
}

/* ========== 分析类型选择 ========== */
.analysis-type-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.375rem;
}

.analysis-type-btn {
    padding: 0.375rem;
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 6px;
    background: var(--card-bg, #ffffff);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    font-size: 0.7rem;
}

.analysis-type-btn:hover {
    border-color: var(--bibvis-primary);
    background: rgba(0, 180, 216, 0.05);
}

.analysis-type-btn.active {
    border-color: var(--bibvis-primary);
    background: var(--bibvis-primary);
    color: white;
}

.analysis-type-btn i {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.125rem;
}

/* ========== 参数设置 ========== */
.param-group {
    margin-bottom: 0.75rem;
}

.param-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--body-text, #212529);
}

.param-group input[type="range"] {
    width: 100%;
    accent-color: var(--bibvis-primary);
}

.param-group .param-value {
    font-size: 0.75rem;
    color: var(--bibvis-primary);
    font-weight: 600;
    float: right;
}

/* ========== 聚类面板 ========== */
.cluster-list {
    max-height: 200px;
    overflow-y: auto;
}

.cluster-item {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
    background: var(--body-bg, #f8f9fa);
    cursor: pointer;
    transition: all 0.2s ease;
}

.cluster-item:hover {
    background: rgba(0, 180, 216, 0.1);
}

.cluster-item.highlighted {
    box-shadow: 0 0 0 2px var(--bibvis-primary);
}

.cluster-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.cluster-label {
    flex: 1;
    font-size: 0.8rem;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cluster-count {
    font-size: 0.7rem;
    color: var(--secondary-color, #6c757d);
    background: var(--card-bg, #ffffff);
    padding: 0.125rem 0.375rem;
    border-radius: 10px;
}

/* ========== 中央画布区域 ========== */
.bibvis-canvas-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* ========== 工具栏 - 两行布局 ========== */
.bibvis-toolbar-wrapper {
    background: var(--card-bg, #ffffff);
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 10px 10px 0 0;
    border-bottom: none;
    position: relative;
    z-index: 100; /* 确保工具栏在正常层级，不会被全屏工具栏覆盖 */
}

.toolbar-row {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    gap: 0.4rem;
    flex-wrap: wrap;  /* 允许换行 */
}

.toolbar-views {
    border-bottom: 1px solid var(--border-color, #eee);
    flex-wrap: wrap;
}

.toolbar-actions {
    background: linear-gradient(to bottom, #f8f9fa, #fff);
    flex-wrap: wrap;  /* 允许换行 */
}

.toolbar-section {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.toolbar-section-label {
    font-size: 0.65rem;
    color: #888;
    text-transform: uppercase;
    font-weight: 600;
    padding-right: 0.4rem;
    white-space: nowrap;
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color, #dee2e6);
    margin: 0 0.3rem;
}

.view-tab-btn {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.35rem 0.6rem;
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 6px;
    background: var(--card-bg, #ffffff);
    color: var(--body-text, #212529);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-tab-btn i {
    font-size: 0.8rem;
}

.view-tab-btn span {
    font-size: 0.7rem;
}

.view-tab-btn:hover {
    border-color: var(--bibvis-primary);
    background: rgba(0, 180, 216, 0.05);
}

.view-tab-btn.active {
    background: var(--bibvis-gradient);
    border-color: var(--bibvis-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 180, 216, 0.3);
}

/* 视图按钮禁用状态 */
.view-tab-btn:disabled,
.view-tab-btn.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: auto; /* 允许显示tooltip */
    background: #f8f9fa;
    border-color: #dee2e6;
    color: #adb5bd;
}

.view-tab-btn:disabled:hover,
.view-tab-btn.disabled:hover {
    background: #f8f9fa;
    border-color: #dee2e6;
}

/* 已缓存网络类型的指示器 */
.analysis-type-btn.has-cache::after {
    content: '●';
    position: absolute;
    top: 2px;
    right: 2px;
    font-size: 6px;
    color: #28a745;
}

.analysis-type-btn {
    position: relative;
}

.toolbar-btn {
    padding: 0.375rem 0.625rem;
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 6px;
    background: var(--card-bg, #ffffff);
    color: var(--body-text, #212529);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.toolbar-btn:hover:not(:disabled) {
    border-color: var(--bibvis-primary);
    color: var(--bibvis-primary);
}

.toolbar-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.toolbar-btn.primary {
    background: var(--bibvis-gradient);
    border-color: transparent;
    color: white;
}

.toolbar-btn.primary:hover {
    opacity: 0.9;
}

/* ========== 图形参数控制面板 ========== */
.chart-params-bar {
    display: flex;
    flex-direction: column;
    padding: 0.5rem 1rem;
    background: linear-gradient(to bottom, #f8f9fa, #fff);
    border: 1px solid var(--border-color, #dee2e6);
    border-top: none;
}

/* 统一行：操作按钮 + 全局样式 + 视图专用参数（支持自适应换行） */
.chart-params-row-unified {
    display: flex;
    align-items: flex-start;  /* 改为 flex-start，允许不同高度的元素对齐到顶部 */
    align-content: flex-start;  /* 多行时从顶部开始排列 */
    gap: 0.75rem;
    flex-wrap: wrap;  /* 允许换行 */
    overflow-x: hidden;  /* 避免横向滚动条 */
    min-height: 0;  /* 允许收缩 */
    width: 100%;  /* 确保占满宽度 */
}

/* 保留旧样式以兼容（已废弃，但保留防止JS引用） */
.chart-params-row-1,
.chart-params-row-2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    overflow-x: auto;
    scrollbar-width: thin;
    flex-wrap: wrap;
}

.chart-params-row-unified::-webkit-scrollbar,
.chart-params-row-1::-webkit-scrollbar,
.chart-params-row-2::-webkit-scrollbar {
    height: 4px;
}

.chart-params-bar::-webkit-scrollbar {
    height: 4px;
}

.chart-params-row-unified::-webkit-scrollbar-thumb,
.chart-params-row-1::-webkit-scrollbar-thumb,
.chart-params-row-2::-webkit-scrollbar-thumb {
    background: var(--bibvis-primary-light);
    border-radius: 2px;
}

.params-group {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
    flex-wrap: nowrap;  /* 参数组内部不换行 */
    padding: 0.3rem 0.6rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    margin: 0.25rem 0;  /* 上下留出间距，方便换行后的显示 */
    min-width: fit-content;  /* 确保组内元素不被压缩 */
    max-width: 100%;  /* 防止超出容器 */
}

/* 确保操作按钮区域也留出上下间距 */
.params-actions-left {
    display: flex;
    gap: 0.4rem;
    flex-shrink: 0;
    margin: 0.25rem 0;
}

.params-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--bibvis-primary);
    white-space: nowrap;
    padding-right: 0.5rem;
    border-right: 2px solid var(--bibvis-primary-light);
}

.params-divider {
    width: 1px;
    height: 28px;
    background: var(--border-color, #dee2e6);
    flex-shrink: 0;
    margin: 0 0.25rem;  /* 左右留出间距 */
}

/* 在窄屏时隐藏部分分隔线，减少视觉混乱 */
@media (max-width: 1200px) {
    .params-divider {
        display: none;
    }
}

/* 响应式优化：在中等屏幕宽度时减小间距 */
@media (max-width: 1400px) {
    .chart-params-row-unified {
        gap: 0.5rem;
    }
    
    .params-group {
        gap: 0.5rem;
        padding: 0.25rem 0.5rem;
    }
}

/* 响应式优化：在较小屏幕时进一步优化换行 */
@media (max-width: 1600px) {
    .chart-params-row-unified {
        gap: 0.6rem;
    }
    
    .params-group {
        flex-basis: auto;  /* 允许自动调整宽度 */
        min-width: min-content;  /* 最小宽度为内容宽度 */
    }
}

/* 响应式优化：在更小屏幕时强制换行 */
@media (max-width: 1200px) {
    .chart-params-row-unified {
        gap: 0.5rem;
        align-items: flex-start;  /* 确保多行时顶部对齐 */
    }
    
    .params-group {
        flex-basis: auto;
        margin: 0.2rem 0;  /* 减小上下间距 */
    }
    
    .params-actions-left {
        flex-basis: 100%;  /* 在小屏幕时操作按钮独占一行 */
        margin-bottom: 0.3rem;
    }
}

/* 响应式优化：在很小屏幕时进一步优化 */
@media (max-width: 992px) {
    .chart-params-row-unified {
        gap: 0.4rem;
    }
    
    .params-group {
        padding: 0.2rem 0.4rem;
        gap: 0.4rem;
    }
}

.param-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
}

.param-item label {
    font-size: 0.68rem;
    color: #666;
    margin: 0;
}

.param-select {
    padding: 0.2rem 0.4rem;
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 4px;
    font-size: 0.68rem;
    background: white;
    cursor: pointer;
    min-width: 70px;
}

.param-select:focus {
    outline: none;
    border-color: var(--bibvis-primary);
}

.param-range {
    width: 60px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: #e9ecef;
    border-radius: 2px;
    cursor: pointer;
}

.param-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--bibvis-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.1s;
}

.param-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.param-range-value {
    font-size: 0.65rem;
    color: var(--bibvis-primary);
    font-weight: 600;
    min-width: 28px;
    text-align: center;
}

.param-checkbox {
    width: 14px;
    height: 14px;
    cursor: pointer;
    accent-color: var(--bibvis-primary);
}

.param-color {
    width: 24px;
    height: 24px;
    padding: 0;
    border: 2px solid #e9ecef;
    border-radius: 4px;
    cursor: pointer;
    background: none;
}

.param-color::-webkit-color-swatch-wrapper {
    padding: 0;
}

.param-color::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.params-actions-left {
    display: flex;
    gap: 0.4rem;
    flex-shrink: 0;
    margin: 0.25rem 0;  /* 上下留出间距，方便换行后的显示 */
}

.params-actions-left .btn {
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
}

/* ========== 搜索框 ========== */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box .search-icon {
    position: absolute;
    left: 10px;
    color: #999;
    font-size: 0.75rem;
    pointer-events: none;
}

.search-box input {
    padding: 0.35rem 2rem 0.35rem 1.75rem;
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 20px;
    font-size: 0.8rem;
    width: 160px;
    transition: all 0.3s ease;
    background: var(--card-bg, #ffffff);
    color: var(--body-text, #212529);
}

.search-box input:focus {
    outline: none;
    border-color: var(--bibvis-primary);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
    width: 200px;
}

.search-box input::placeholder {
    color: #aaa;
    font-size: 0.75rem;
}

.search-clear-btn {
    position: absolute;
    right: 6px;
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    padding: 2px 6px;
    font-size: 0.7rem;
    border-radius: 50%;
    transition: all 0.2s;
}

.search-clear-btn:hover {
    color: var(--bibvis-accent);
    background: rgba(255, 107, 107, 0.1);
}

/* 搜索高亮 */
.node-highlighted {
    animation: nodeHighlight 1s ease-in-out infinite;
}

@keyframes nodeHighlight {
    0%, 100% { filter: drop-shadow(0 0 5px var(--bibvis-primary)); }
    50% { filter: drop-shadow(0 0 15px var(--bibvis-primary)); }
}

/* 筛选器按钮徽章 */
.toolbar-btn {
    position: relative;
}

.filter-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 14px;
    height: 14px;
    background: var(--bibvis-accent);
    color: white;
    border-radius: 50%;
    font-size: 0.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* ========== 自适应画布按钮样式 ========== */
#btnFitToCanvas,
#btnCenterView {
    transition: all 0.3s ease;
}

#btnFitToCanvas:hover,
#btnCenterView:hover {
    background: var(--bibvis-primary-light);
    color: white;
    border-color: var(--bibvis-primary);
    transform: scale(1.05);
}

#btnFitToCanvas:active,
#btnCenterView:active {
    transform: scale(0.95);
}

/* 自适应按钮特殊图标动画 */
#btnFitToCanvas i {
    transition: transform 0.3s ease;
}

#btnFitToCanvas:hover i {
    animation: fitPulse 0.6s ease-in-out infinite;
}

@keyframes fitPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* 居中按钮特殊图标动画 */
#btnCenterView i {
    transition: transform 0.3s ease;
}

#btnCenterView:hover i {
    animation: centerSpin 0.5s ease-in-out;
}

@keyframes centerSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========== 筛选器模态框 ========== */
.filter-section h6 {
    color: var(--bibvis-primary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color, #eee);
}

.filter-clusters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-height: 150px;
    overflow-y: auto;
    padding: 0.5rem;
    background: var(--bg-color, #f8f9fa);
    border-radius: 6px;
}

.filter-cluster-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.6rem;
    background: white;
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 15px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-cluster-item:hover {
    border-color: var(--bibvis-primary);
}

.filter-cluster-item.selected {
    background: var(--bibvis-primary);
    color: white;
    border-color: var(--bibvis-primary);
}

.filter-cluster-item .cluster-color {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.filter-cluster-item .cluster-count {
    opacity: 0.7;
    font-size: 0.65rem;
}

/* 搜索结果高亮列表 */
.search-results-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    max-height: 250px;
    overflow-y: auto;
    z-index: 1000;
    margin-top: 4px;
}

.search-result-item {
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.8rem;
}

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

.search-result-item:hover {
    background: rgba(0, 180, 216, 0.1);
}

.search-result-item .result-color {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.search-result-item .result-weight {
    margin-left: auto;
    color: #999;
    font-size: 0.7rem;
}

.search-no-results {
    padding: 1rem;
    text-align: center;
    color: #999;
    font-size: 0.8rem;
}

/* ========== 网络画布 ========== */
.bibvis-canvas {
    flex: 1;
    background: var(--card-bg, #ffffff);
    border: 1px solid var(--border-color, #dee2e6);
    border-radius: 0 0 10px 10px;
    position: relative;
    overflow: hidden;
    min-height: 780px; /* 原650px增加20% */
}

#networkChart {
    width: 100%;
    height: 100%;
    min-height: 780px; /* 原650px增加20% */
}

/* 3D网络容器 */
#network3DContainer {
    width: 100%;
    height: 100%;
    min-height: 780px; /* 原650px增加20% */
    position: absolute;
    top: 0;
    left: 0;
    z-index: 5;
    border-radius: 0 0 10px 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

#network3DContainer > canvas {
    width: 100% !important;
    height: 100% !important;
    display: block;
}

/* 3D视图标题覆盖层 */
#network3DTitleOverlay {
    pointer-events: none;
}

/* 3D图例样式优化 */
#network3DTitleOverlay > div {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ========== 浮动节点详情面板 - 增强版 ========== */
.node-detail-float {
    position: fixed;
    right: 20px;
    top: 100px;
    width: 340px;
    max-height: 80vh;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.25);
    z-index: 1000;
    overflow: hidden;
    animation: slideInRight 0.3s ease;
    transition: all 0.3s ease;
}

.node-detail-float.fullscreen {
    position: fixed;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    width: auto;
    max-height: none;
    border-radius: 16px;
    z-index: 2000;
}

.node-detail-float.fullscreen #nodeDetailContent {
    max-height: calc(100vh - 80px);
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.node-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--bibvis-gradient);
    color: white;
    font-weight: 600;
    font-size: 0.85rem;
}

.node-detail-actions {
    display: flex;
    gap: 0.3rem;
    align-items: center;
}

.btn-detail-action {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 0.8rem;
}

.btn-detail-action:hover {
    background: rgba(255,255,255,0.4);
    transform: scale(1.1);
}

.btn-close-float {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-close-float:hover {
    background: rgba(255, 107, 107, 0.8);
}

.node-detail-float #nodeDetailContent {
    padding: 1rem;
    max-height: calc(80vh - 55px);
    overflow-y: auto;
}

/* 全屏背景遮罩 */
.node-detail-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1999;
    display: none;
}

.node-detail-backdrop.show {
    display: block;
}

/* ========== AI图表解读样式 ========== */
.interpret-text {
    line-height: 1.8;
    font-size: 0.95rem;
}

.interpret-text h2, .interpret-text h3, .interpret-text h4 {
    color: var(--primary-color, #2c7a7b);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.interpret-text h2 { font-size: 1.25rem; }
.interpret-text h3 { font-size: 1.1rem; }
.interpret-text h4 { font-size: 1rem; }

.interpret-text p {
    margin-bottom: 0.75rem;
    text-align: justify;
}

.interpret-text ul, .interpret-text ol {
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
}

.interpret-text li {
    margin-bottom: 0.35rem;
}

.interpret-text strong {
    color: #333;
}

.interpret-text blockquote {
    border-left: 3px solid var(--primary-color, #2c7a7b);
    padding-left: 1rem;
    margin: 1rem 0;
    color: #555;
    font-style: italic;
}

/* AI解读按钮 - 突出显示（默认/白天模式） */
#btnChartInterpret {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%) !important;
    color: white !important;
    border-color: #e74c3c !important;
    box-shadow: 0 2px 8px rgba(231, 76, 60, 0.4);
    font-weight: 600;
    transition: all 0.3s ease;
    animation: ai-btn-pulse 2s ease-in-out infinite;
}

#btnChartInterpret:hover:not(:disabled) {
    background: linear-gradient(135deg, #c0392b 0%, #a93226 100%) !important;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.6);
    transform: translateY(-2px);
}

#btnChartInterpret:disabled {
    background: #ccc !important;
    border-color: #bbb !important;
    box-shadow: none;
    animation: none;
}

@keyframes ai-btn-pulse {
    0%, 100% { box-shadow: 0 2px 8px rgba(231, 76, 60, 0.4); }
    50% { box-shadow: 0 2px 15px rgba(231, 76, 60, 0.7); }
}

/* AI解读按钮状态 */
#btnChartInterpret.interpreting {
    pointer-events: none;
    opacity: 0.7;
    animation: none;
}

#btnChartInterpret.interpreting .btn-text::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

#btnViewInterpret {
    background: linear-gradient(135deg, #38a169 0%, #2f855a 100%) !important;
    color: white !important;
    border-color: #38a169 !important;
    box-shadow: 0 2px 8px rgba(56, 161, 105, 0.4);
}

#btnViewInterpret:hover {
    background: linear-gradient(135deg, #2f855a 0%, #276749 100%) !important;
    box-shadow: 0 4px 12px rgba(56, 161, 105, 0.6);
}

/* ========== 统计信息面板（已移到头部，此处保留兼容） ========== */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.stat-item {
    background: var(--body-bg, #f8f9fa);
    padding: 0.5rem;
    border-radius: 6px;
    text-align: center;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--bibvis-primary);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--secondary-color, #6c757d);
    text-transform: uppercase;
}

/* ========== TOP节点列表 ========== */
.top-nodes-list {
    max-height: 250px;
    overflow-y: auto;
}

.top-node-item {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    border-radius: 6px;
    margin-bottom: 0.375rem;
    background: var(--body-bg, #f8f9fa);
    cursor: pointer;
    transition: all 0.2s ease;
}

.top-node-item:hover {
    background: rgba(0, 180, 216, 0.1);
}

.top-node-rank {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bibvis-primary);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.top-node-rank.gold {
    background: linear-gradient(135deg, #ffd700, #ffb300);
}

.top-node-rank.silver {
    background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
}

.top-node-rank.bronze {
    background: linear-gradient(135deg, #cd7f32, #b87333);
}

.top-node-label {
    flex: 1;
    font-size: 0.8rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.top-node-weight {
    font-size: 0.75rem;
    color: var(--secondary-color, #6c757d);
    font-weight: 500;
}

/* ========== AI洞察面板 ========== */
.ai-insights-content {
    font-size: 0.85rem;
    line-height: 1.6;
    max-height: 200px;
    overflow-y: auto;
}

.btn-ai-insights {
    width: 100%;
    padding: 0.5rem;
    background: var(--bibvis-gradient);
    border: none;
    border-radius: 6px;
    color: white;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-ai-insights:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.btn-ai-insights:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ========== 节点详情面板 ========== */
#nodeDetailPanel {
    transition: all 0.3s ease;
}

.node-detail-header {
    border-bottom: 1px solid rgba(0, 180, 216, 0.2);
    padding-bottom: 0.5rem;
}

/* 节点详情信息头部 */
.node-detail-info-header {
    border-bottom: 1px solid rgba(0, 180, 216, 0.2);
    padding-bottom: 0.75rem;
}

.node-detail-title-row {
    margin-bottom: 0;
}

.node-detail-cluster-row {
    margin-top: 0.5rem;
}

.node-detail-title {
    font-size: 0.95rem;
    color: var(--bibvis-primary);
    word-break: break-word;
}

/* 三行标签容器 */
.node-tags-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.node-tags-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    align-items: center;
}

.node-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s ease;
    white-space: nowrap;
    line-height: 1.2;
}

/* 第一行标签 - 主要标签（最大、最突出） */
.node-tags-row.row-primary .node-tag {
    background: linear-gradient(135deg, #00b4d8 0%, #0096c7 100%);
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.4rem 0.85rem;
    box-shadow: 0 2px 6px rgba(0, 180, 216, 0.3);
}

.node-tags-row.row-primary .node-tag:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 180, 216, 0.4);
}

/* 第二行标签 - 次要标签（中等大小） */
.node-tags-row.row-secondary .node-tag {
    background: rgba(0, 180, 216, 0.15);
    color: #0077b6;
    border: 1px solid rgba(0, 180, 216, 0.3);
    font-size: 0.8rem;
}

.node-tags-row.row-secondary .node-tag:hover {
    background: rgba(0, 180, 216, 0.25);
    border-color: rgba(0, 180, 216, 0.5);
}

/* 第三行标签 - 辅助标签（最小） */
.node-tags-row.row-tertiary .node-tag {
    background: rgba(0, 180, 216, 0.08);
    color: #0096c7;
    border: 1px solid rgba(0, 180, 216, 0.2);
    font-size: 0.75rem;
    padding: 0.3rem 0.65rem;
}

.node-tags-row.row-tertiary .node-tag:hover {
    background: rgba(0, 180, 216, 0.15);
}

.node-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.node-stat {
    background: var(--body-bg, #f8f9fa);
    border-radius: 6px;
    padding: 0.4rem;
    text-align: center;
}

.node-stat-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--bibvis-primary);
}

.node-stat-label {
    font-size: 0.65rem;
    color: var(--secondary-color, #6c757d);
    text-transform: uppercase;
}

.node-section {
    margin-top: 0.5rem;
}

.node-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--secondary-color, #6c757d);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
}

/* 中心性指标样式 */
.centrality-metrics {
    background: var(--body-bg, #f8f9fa);
    border-radius: 8px;
    padding: 0.6rem;
}

.centrality-bars {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.centrality-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
}

.centrality-label {
    width: 70px;
    flex-shrink: 0;
    color: var(--secondary-color, #6c757d);
}

.centrality-bar-bg {
    flex: 1;
    height: 6px;
    background: var(--border-color, #dee2e6);
    border-radius: 3px;
    overflow: hidden;
}

.centrality-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.centrality-value {
    width: 45px;
    text-align: right;
    font-weight: 600;
    color: var(--body-text, #212529);
}

.connected-nodes-list,
.related-docs-list {
    max-height: 120px;
    overflow-y: auto;
}

.connected-node-item,
.related-doc-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.25rem 0.5rem;
    margin-bottom: 0.25rem;
    background: var(--body-bg, #f8f9fa);
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: background 0.2s;
}

.connected-node-item:hover,
.related-doc-item:hover {
    background: rgba(0, 180, 216, 0.1);
}

.connected-node-label,
.related-doc-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.connected-node-weight,
.related-doc-year {
    font-size: 0.7rem;
    color: var(--secondary-color, #6c757d);
    margin-left: 0.5rem;
}

/* ========== 空状态 ========== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--secondary-color, #6c757d);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 0.9rem;
}

/* ========== 加载状态 ========== */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--bibvis-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--bibvis-primary);
}

/* ========== 模态框 ========== */
.bibvis-modal .modal-header {
    background: var(--bibvis-gradient);
    color: white;
}

.bibvis-modal .modal-header .btn-close {
    filter: brightness(0) invert(1);
}

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

/* 模态框全屏切换按钮 */
.bibvis-modal .modal-header .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.5);
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.bibvis-modal .modal-header .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.8);
}

/* 全屏模态框时调整搜索结果区域高度 */
.modal-fullscreen #onlineSearchResults .table-responsive {
    max-height: calc(100vh - 300px) !important;
}

/* ========== 响应式 ========== */
@media (max-width: 1400px) {
    .bibvis-sidebar {
        width: 195px;
        min-width: 195px;
        max-width: 195px;
    }
    .header-stats {
        gap: 0.5rem;
    }
    .header-stat {
        padding: 0.25rem 0.5rem;
    }
}

@media (max-width: 1200px) {
    .bibvis-sidebar {
        width: 180px;
        min-width: 180px;
        max-width: 180px;
    }
    .header-stats {
        display: none;
    }
    .chart-params-bar {
        flex-wrap: wrap;
    }
}

@media (max-width: 992px) {
    .bibvis-main-container {
        flex-direction: column;
        height: auto;
    }
    
    .bibvis-sidebar {
        width: 100%;
        min-width: 100%;
        max-width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .bibvis-sidebar .bibvis-panel {
        flex: 1;
        min-width: 200px;
    }
    
    .bibvis-canvas-wrapper {
        height: 840px; /* 原700px增加20% */
        min-height: 840px; /* 原700px增加20% */
    }
    
    .node-detail-float {
        right: 10px;
        top: auto;
        bottom: 20px;
        width: 90%;
        max-width: 320px;
    }
}

/* ========== 构建网络按钮突出样式 ========== */
.btn-build-network {
    background: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
    color: white;
    border: none;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    box-shadow: 0 3px 10px rgba(0, 180, 216, 0.4);
    transition: all 0.3s ease;
    animation: btn-pulse 2s infinite;
}

.btn-build-network:hover {
    background: linear-gradient(135deg, #48cae4 0%, #00b4d8 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 180, 216, 0.5);
}

.btn-build-network:active {
    transform: translateY(0);
}

@keyframes btn-pulse {
    0%, 100% { box-shadow: 0 3px 10px rgba(0, 180, 216, 0.4); }
    50% { box-shadow: 0 3px 20px rgba(0, 180, 216, 0.6); }
}

/* ========== 全屏模式样式 ========== */
.bibvis-fullscreen-active {
    overflow: hidden;
}

.bibvis-canvas-wrapper.fullscreen-mode {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background: var(--body-bg, #ffffff);
    padding: 0;
    margin: 0;
}

.bibvis-canvas-wrapper.fullscreen-mode .bibvis-toolbar-wrapper {
    /* 全屏模式下，完全隐藏原有的工具栏（使用全屏工具栏替代） */
    display: none !important;
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar {
    /* 参数面板：全屏模式下显示（使用原有的参数面板） */
    display: flex !important;
    position: fixed;
    top: 60px; /* 在全屏工具栏下方 */
    left: 0;
    right: 0;
    z-index: 10000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 180, 216, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    padding: 0.75rem 1rem;
    margin: 0;
    border-radius: 0;
}

/* 全屏模式下参数面板的样式调整 */
.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .chart-params-row-unified {
    flex-wrap: wrap;
    gap: 0.5rem;
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .params-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .param-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .param-item label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.75rem;
    white-space: nowrap;
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .param-select,
.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .param-range,
.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .param-color {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .params-label {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .btn {
    background: rgba(34, 197, 94, 0.3);
    border-color: rgba(34, 197, 94, 0.5);
    color: #fff;
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .btn:hover {
    background: rgba(34, 197, 94, 0.5);
    border-color: rgba(34, 197, 94, 0.7);
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .btn-outline-secondary {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
}

.bibvis-canvas-wrapper.fullscreen-mode .chart-params-bar .btn-outline-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
}

.bibvis-canvas-wrapper.fullscreen-mode #networkChart,
.bibvis-canvas-wrapper.fullscreen-mode #network3DContainer {
    /* 图表容器：全屏模式下占据剩余空间（图表区域从80px开始） */
    height: calc(100vh - 80px) !important;
    min-height: calc(100vh - 80px) !important;
    margin-top: 80px; /* 为全屏工具栏和参数面板留出空间 */
}

/* 全屏模式下画布容器应用间距，避免与工具栏重叠 */
.bibvis-canvas-wrapper.fullscreen-mode .bibvis-canvas {
    margin-top: 80px !important;
    padding-top: 0 !important;
    height: calc(100vh - 80px) !important;
    min-height: calc(100vh - 80px) !important;
}

/* CSS全屏模式（浏览器不支持原生全屏API时的回退方案） */
.bibvis-canvas-wrapper.css-fullscreen-mode {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background: var(--body-bg, #ffffff);
    padding: 0;
    margin: 0;
}

/* 全屏模式下的视图切换按钮样式优化 */
.bibvis-canvas-wrapper.fullscreen-mode .view-tab-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
}

.bibvis-canvas-wrapper.fullscreen-mode .view-tab-btn i {
    font-size: 0.9rem;
}

.bibvis-canvas-wrapper.fullscreen-mode .view-tab-btn span {
    font-size: 0.75rem;
}

/* ========== 全屏模式工具栏 ========== */
.fullscreen-toolbar {
    /* 默认隐藏，只在全屏模式下显示 */
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10001;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 180, 216, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    padding: 0;
}

.fullscreen-toolbar-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
}

.fullscreen-views-actions-row {
    justify-content: flex-start; /* 第一行左对齐，让按钮从左开始排列 */
}

.fullscreen-toolbar-row:not(:last-child) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.fullscreen-toolbar-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.fullscreen-view-name {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.fullscreen-toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.fullscreen-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0; /* 防止按钮被压缩 */
}

.fullscreen-btn:hover {
    background: rgba(0, 180, 216, 0.3);
    border-color: rgba(0, 180, 216, 0.5);
    transform: translateY(-1px);
}

.fullscreen-btn:active {
    transform: translateY(0);
}

.fullscreen-btn i {
    font-size: 14px;
}

.fullscreen-btn-exit {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
}

.fullscreen-btn-exit:hover {
    background: rgba(239, 68, 68, 0.4);
    border-color: rgba(239, 68, 68, 0.6);
}

.fullscreen-btn-apply {
    background: rgba(34, 197, 94, 0.3);
    border-color: rgba(34, 197, 94, 0.5);
}

.fullscreen-btn-apply:hover {
    background: rgba(34, 197, 94, 0.5);
    border-color: rgba(34, 197, 94, 0.7);
}

.fullscreen-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.fullscreen-divider {
    width: 1px;
    height: 24px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 5px;
}

/* 全屏视图和操作按钮行（第一行：11个视图按钮 + 4个操作按钮） */
.fullscreen-views-actions-row {
    background: rgba(0, 0, 0, 0.15);
    padding: 8px 20px;
    overflow-x: auto;
    min-height: 50px;
}

.fullscreen-views-actions-container {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    width: 100%;
}

.fullscreen-view-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0; /* 防止按钮被压缩 */
}

.fullscreen-view-btn:hover {
    background: rgba(0, 180, 216, 0.3);
    border-color: rgba(0, 180, 216, 0.5);
    color: #fff;
}

.fullscreen-view-btn.active {
    background: rgba(0, 180, 216, 0.5);
    border-color: rgba(0, 180, 216, 0.7);
    color: #fff;
    font-weight: 600;
}

.fullscreen-view-btn i {
    font-size: 12px;
}

.fullscreen-view-btn span {
    font-size: 11px;
}

.fullscreen-view-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* 全屏视图属性参数组 */
.fullscreen-view-params {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.fullscreen-param-divider {
    width: 1px;
    height: 24px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 5px;
}

/* 全屏参数行 */
.fullscreen-params-row {
    background: rgba(0, 0, 0, 0.2);
    padding: 8px 20px;
}

.fullscreen-params-container {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.fullscreen-params-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    font-weight: 500;
}

.fullscreen-param-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.fullscreen-param-item label {
    color: rgba(255, 255, 255, 0.6);
    font-size: 11px;
    white-space: nowrap;
}

.fullscreen-param-select {
    padding: 4px 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 11px;
    cursor: pointer;
}

.fullscreen-param-select option {
    background: #1e293b;
    color: #fff;
}

.fullscreen-param-range {
    width: 80px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    cursor: pointer;
}

.fullscreen-param-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #00b4d8;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.fullscreen-param-value {
    color: rgba(255, 255, 255, 0.8);
    font-size: 11px;
    min-width: 20px;
    text-align: center;
}

.fullscreen-param-color {
    width: 28px;
    height: 22px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
}

.fullscreen-param-checkbox {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: #00b4d8;
}

.fullscreen-param-divider {
    width: 1px;
    height: 20px;
    background: rgba(255, 255, 255, 0.15);
    margin: 0 5px;
}

/* 全屏模式下图表容器调整 */
/* 注意：全屏工具栏默认隐藏，只在全屏模式下通过JavaScript显示 */
.bibvis-canvas-wrapper.fullscreen-mode .fullscreen-toolbar {
    display: block !important;
}

/* 确保非全屏模式下全屏工具栏完全隐藏且不占用空间 */
.fullscreen-toolbar:not(.bibvis-canvas-wrapper.fullscreen-mode .fullscreen-toolbar) {
    display: none !important;
    pointer-events: none !important;
}

.bibvis-canvas-wrapper.fullscreen-mode #networkChart,
.bibvis-canvas-wrapper.fullscreen-mode #network3DContainer {
    height: calc(100vh - 80px) !important;
    min-height: calc(100vh - 80px) !important;
    margin-top: 80px; /* 图表区域从80px开始 */
}

/* ========== 可折叠面板样式 ========== */
.collapsible-panel .collapsible-header {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
}

.collapsible-panel .collapsible-header:hover {
    background: rgba(0, 180, 216, 0.1);
}

.collapsible-panel .collapse-icon {
    transition: transform 0.3s ease;
    font-size: 0.7rem;
    opacity: 0.6;
}

.collapsible-panel .collapsible-header.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.collapsible-panel .collapsible-content {
    padding-top: 0.5rem;
    animation: slideDown 0.3s ease;
}

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

/* ========== 聚类和TOP10列表项tooltip ========== */
.cluster-item,
.top-node-item {
    position: relative;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cluster-item .cluster-label,
.top-node-item .node-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
    max-width: 100%;
}

/* 浮动tooltip */
.label-tooltip {
    position: fixed;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    max-width: 300px;
    word-wrap: break-word;
    z-index: 10000;
    pointer-events: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    animation: tooltipFadeIn 0.2s ease;
}

.label-tooltip::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 20px;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid rgba(0, 0, 0, 0.9);
}

@keyframes tooltipFadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ========== 欢迎引导模态框样式 ========== */
.welcome-guide-content {
    border: none;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
}

.welcome-guide-header {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0d47a1 100%);
    color: #fff;
    padding: 24px 30px;
    border: none;
    position: relative;
    overflow: hidden;
}

.welcome-guide-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.3) 0%, transparent 70%);
    border-radius: 50%;
}

.welcome-icon-wrapper {
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #00b4d8;
}

.welcome-guide-header .modal-title {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.welcome-title-main {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.welcome-title-sub {
    font-size: 14px;
    font-weight: 400;
    opacity: 0.8;
}

.welcome-guide-body {
    padding: 25px 30px;
    background: #f8fafc;
}

.welcome-intro {
    font-size: 15px;
    color: #475569;
    margin-bottom: 20px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #fef3c7 0%, #fef9c3 100%);
    border-radius: 8px;
    border-left: 4px solid #f59e0b;
}

.guide-section {
    background: #fff;
    border-radius: 12px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.guide-section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    border-bottom: 1px solid #e2e8f0;
}

.guide-step-number {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, #00b4d8 0%, #0077b6 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 2px 6px rgba(0, 180, 216, 0.4);
}

.guide-section-header h5 {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: #1e293b;
}

.guide-section-content {
    padding: 16px 18px;
}

.guide-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.guide-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 10px;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.guide-option:hover {
    border-color: #00b4d8;
    background: #f0f9ff;
    transform: translateY(-2px);
}

.guide-option i {
    font-size: 24px;
    color: #64748b;
    transition: color 0.2s;
}

.guide-option:hover i {
    color: #00b4d8;
}

.guide-option span {
    font-size: 13px;
    font-weight: 600;
    color: #334155;
}

.guide-option small {
    font-size: 11px;
    color: #94a3b8;
}

.guide-option-highlight {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border-color: #10b981;
    position: relative;
}

.guide-option-highlight::before {
    content: '推荐';
    position: absolute;
    top: -8px;
    right: -8px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #fff;
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

.guide-option-highlight i {
    color: #10b981;
}

.guide-option-highlight:hover {
    border-color: #059669;
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
}

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

.guide-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid #f1f5f9;
}

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

.guide-list li i {
    font-size: 18px;
    margin-top: 2px;
    flex-shrink: 0;
}

.guide-list li strong {
    color: #1e293b;
    font-weight: 600;
}

.guide-warning {
    display: block;
    font-size: 12px;
    color: #dc2626;
    margin-top: 4px;
}

.guide-warning i {
    font-size: 12px !important;
    margin-right: 4px;
}

.guide-ai-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.guide-ai-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    background: linear-gradient(135deg, #faf5ff 0%, #f3e8ff 100%);
    border-radius: 10px;
    border: 1px solid #e9d5ff;
}

.guide-ai-item i {
    font-size: 20px;
    color: #9333ea;
    flex-shrink: 0;
}

.guide-ai-item strong {
    display: block;
    font-size: 13px;
    color: #581c87;
    margin-bottom: 2px;
}

.guide-ai-item small {
    font-size: 11px;
    color: #7e22ce;
    line-height: 1.3;
}

.guide-help-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: #fff;
    border: 1px dashed #cbd5e1;
    border-radius: 10px;
    margin-top: 16px;
}

.guide-help-tip > i {
    font-size: 20px;
    color: #3b82f6;
}

.guide-help-tip span {
    font-size: 13px;
    color: #475569;
}

.guide-help-tip .btn {
    margin-left: auto;
    white-space: nowrap;
}

.welcome-guide-footer {
    padding: 16px 30px 20px;
    background: #fff;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.welcome-guide-footer .form-check {
    margin: 0;
}

.welcome-guide-footer .form-check-label {
    font-size: 13px;
    color: #64748b;
}

.guide-footer-buttons {
    display: flex;
    gap: 10px;
}

.guide-footer-buttons .btn-primary {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: none;
    padding: 10px 20px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.guide-footer-buttons .btn-primary:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

/* 响应式适配 */
@media (max-width: 768px) {
    .guide-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .guide-ai-features {
        grid-template-columns: 1fr;
    }
    
    .welcome-guide-footer {
        flex-direction: column;
        gap: 16px;
    }
    
    .guide-footer-buttons {
        width: 100%;
        flex-direction: column;
    }
    
    .guide-footer-buttons .btn {
        width: 100%;
    }
    
    .guide-help-tip {
        flex-wrap: wrap;
    }
    
    .guide-help-tip .btn {
        width: 100%;
        margin-left: 0;
        margin-top: 10px;
    }
}

/* ========== 数据结构分析模态框样式 ========== */
#dataAnalysisModal .modal-header {
    background: linear-gradient(135deg, #17a2b8 0%, #0dcaf0 100%);
}

#dataAnalysisModal .card {
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

#dataAnalysisModal .card-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    font-weight: 600;
    font-size: 0.9rem;
}

#dataAnalysisModal .table th {
    font-weight: 600;
    font-size: 0.8rem;
    white-space: nowrap;
}

#dataAnalysisModal .table td {
    vertical-align: middle;
    font-size: 0.85rem;
}

#dataAnalysisModal .progress {
    border-radius: 10px;
    background-color: #e9ecef;
}

#dataAnalysisModal .progress-bar {
    border-radius: 10px;
    transition: width 0.5s ease;
}

#dataAnalysisModal #analysisScoreValue {
    background: linear-gradient(135deg, #17a2b8, #0dcaf0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#dataAnalysisModal .badge {
    font-weight: 500;
}

/* 分析类型网格卡片 */
#analysisTypesGrid .card {
    transition: all 0.2s ease;
    border: 1px solid #dee2e6;
}

#analysisTypesGrid .card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 建议项样式 */
#analysisSuggestions .border {
    transition: all 0.2s ease;
}

#analysisSuggestions .border:hover {
    background-color: #f8f9fa;
    border-color: #17a2b8 !important;
}

/* 暗黑模式适配 */
.dark-mode #dataAnalysisModal .modal-content,
[data-mode="dark"] #dataAnalysisModal .modal-content {
    background-color: #1a202c;
    color: #e2e8f0;
}

.dark-mode #dataAnalysisModal .card,
[data-mode="dark"] #dataAnalysisModal .card {
    background-color: #2d3748;
    border-color: #4a5568;
}

.dark-mode #dataAnalysisModal .card-header,
[data-mode="dark"] #dataAnalysisModal .card-header {
    background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    color: #e2e8f0;
}

.dark-mode #dataAnalysisModal .table,
[data-mode="dark"] #dataAnalysisModal .table {
    color: #e2e8f0;
}

.dark-mode #dataAnalysisModal .table-light,
[data-mode="dark"] #dataAnalysisModal .table-light {
    background-color: #2d3748;
    color: #e2e8f0;
}

.dark-mode #dataAnalysisModal .bg-light,
[data-mode="dark"] #dataAnalysisModal .bg-light {
    background-color: #2d3748 !important;
}

.dark-mode #dataAnalysisModal .text-muted,
[data-mode="dark"] #dataAnalysisModal .text-muted {
    color: #a0aec0 !important;
}

.dark-mode #analysisSuggestions .border:hover,
[data-mode="dark"] #analysisSuggestions .border:hover {
    background-color: #2d3748;
}

/* 科幻模式适配 */
.scifi-mode #dataAnalysisModal .modal-content,
[data-mode="scifi"] #dataAnalysisModal .modal-content {
    background-color: #0a0f1a;
    color: #00d9ff;
    border: 1px solid rgba(0, 217, 255, 0.3);
}

.scifi-mode #dataAnalysisModal .modal-header,
[data-mode="scifi"] #dataAnalysisModal .modal-header {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.2) 0%, rgba(0, 255, 136, 0.1) 100%);
    border-bottom: 1px solid rgba(0, 217, 255, 0.3);
}

.scifi-mode #dataAnalysisModal .card,
[data-mode="scifi"] #dataAnalysisModal .card {
    background-color: rgba(0, 217, 255, 0.05);
    border-color: rgba(0, 217, 255, 0.2);
}

.scifi-mode #dataAnalysisModal .card-header,
[data-mode="scifi"] #dataAnalysisModal .card-header {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(0, 255, 136, 0.05) 100%);
    color: #00d9ff;
}

.scifi-mode #dataAnalysisModal .table,
[data-mode="scifi"] #dataAnalysisModal .table {
    color: #00d9ff;
}

.scifi-mode #dataAnalysisModal .badge,
[data-mode="scifi"] #dataAnalysisModal .badge {
    border: 1px solid currentColor;
}

.scifi-mode #dataAnalysisModal #analysisScoreValue,
[data-mode="scifi"] #dataAnalysisModal #analysisScoreValue {
    background: linear-gradient(135deg, #00d9ff, #00ff88);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.scifi-mode #dataAnalysisModal .progress,
[data-mode="scifi"] #dataAnalysisModal .progress {
    background-color: rgba(0, 217, 255, 0.1);
}

.scifi-mode #dataAnalysisModal .progress-bar,
[data-mode="scifi"] #dataAnalysisModal .progress-bar {
    background: linear-gradient(90deg, #00d9ff, #00ff88);
}

/* ========== 后台运行指示器样式 ========== */
#enrichBackgroundIndicator {
    transition: all 0.3s ease;
}

#enrichBackgroundIndicator:hover {
    transform: scale(1.05);
}

#enrichBackgroundIndicator .card {
    border: 2px solid #17a2b8;
    animation: pulse-border 2s infinite;
}

@keyframes pulse-border {
    0%, 100% { border-color: #17a2b8; }
    50% { border-color: #0dcaf0; }
}

/* 夜间模式适配 */
.dark-mode #enrichBackgroundIndicator .card,
[data-mode="dark"] #enrichBackgroundIndicator .card {
    background-color: #2d3238;
    color: #e0e0e0;
}

.scifi-mode #enrichBackgroundIndicator .card,
[data-mode="scifi"] #enrichBackgroundIndicator .card {
    background: rgba(0, 40, 60, 0.95);
    border-color: #00d9ff;
    color: #00d9ff;
}

/* 补全进度模态框卡片样式 */
#enrichProgressModal .card {
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#enrichProgressModal .card-body {
    background: linear-gradient(to bottom, #fff, #f8f9fa);
}

.dark-mode #enrichProgressModal .card-body,
[data-mode="dark"] #enrichProgressModal .card-body {
    background: linear-gradient(to bottom, #3a3f44, #2d3238);
}

.scifi-mode #enrichProgressModal .card-body,
[data-mode="scifi"] #enrichProgressModal .card-body {
    background: rgba(0, 40, 60, 0.5);
    border: 1px solid rgba(0, 217, 255, 0.3);
}