/* ============ CSS 变量定义（清爽调研报告风格 v3.0）============ */
        :root {
            /* 多色调色板（五色体系）*/
            --color-success: #059669;
            --color-success-light: #10B981;
            --color-success-dark: #047857;
            --color-success-50: #ECFDF5;
            --color-danger: #E11D48;
            --color-danger-light: #F43F5E;
            --color-warning: #D97706;
            --color-warning-light: #F59E0B;
            --color-info: #2563EB;
            --color-info-light: #3B82F6;
            --color-info-50: #EFF6FF;
            --color-purple: #7C3AED;
            --color-purple-light: #8B5CF6;
            --color-purple-50: #F5F3FF;
            
            /* 中性色（高对比度）*/
            --color-text-primary: #1C1917;
            --color-text-secondary: #57534E;
            --color-text-muted: #78716C;
            --color-border: #E7E5E4;
            --color-border-light: #F5F5F4;
            --color-bg: #F8FAFB;
            --color-bg-card: #FFFFFF;
            --color-bg-table-header: #FAFAF9;
            
            /* 渐变色 */
            --gradient-success: linear-gradient(135deg, #059669 0%, #10B981 100%);
            --gradient-hero: linear-gradient(135deg, #059669 0%, #2563EB 50%, #7C3AED 100%);
            --gradient-badge: linear-gradient(135deg, #ECFDF5 0%, #EFF6FF 100%);
            --gradient-highlight: linear-gradient(135deg, rgba(5,150,105,0.08) 0%, rgba(5,150,105,0.03) 100%);
            --gradient-mesh: 
                radial-gradient(at 20% 20%, rgba(5,150,105,0.08) 0%, transparent 50%),
                radial-gradient(at 80% 80%, rgba(37,99,235,0.06) 0%, transparent 50%),
                radial-gradient(at 50% 50%, rgba(124,58,237,0.04) 0%, transparent 50%);
            
            /* 阴影层级 */
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-card: 0 2px 8px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.04);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
            --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.03);
            --shadow-glow-success: 0 4px 14px rgba(5,150,105,0.15);
            --shadow-glow-info: 0 4px 14px rgba(37,99,235,0.15);
            --shadow-glow-purple: 0 4px 14px rgba(124,58,237,0.15);
            --shadow-hover: 0 6px 16px rgba(5,150,105,0.15), 0 2px 6px rgba(5,150,105,0.1);
            
            /* 间距系统 */
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 40px;
            --spacing-3xl: 48px;
            
            /* 圆角系统 */
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --radius-full: 9999px;
            
            /* 字体 */
            --font-family: -apple-system, "SF Pro Display", "system-ui", "Segoe UI", "Noto Sans SC", Helvetica, Arial, sans-serif;
            --font-mono: "SF Mono", "Fira Code", "Cascadia Code", "JetBrains Mono", monospace;
            
            /* 动画 */
            --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
            --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
            
            /* 内容宽度 */
            --content-max-width: 1100px;
        }
        
        /* ============ 基础样式 ============ */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: var(--font-family);
            font-size: 15px;
            line-height: 1.65;
            color: var(--color-text-secondary);
            background: var(--color-bg);
            background-image: var(--gradient-mesh);
            /* background-attachment: fixed 已移除 — 移动端每帧触发repaint */
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        ::selection {
            background: rgba(5, 150, 105, 0.2);
        }
        
        ::-webkit-scrollbar {
            width: 6px;
        }
        
        ::-webkit-scrollbar-track {
            background: transparent;
        }
        
        ::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 3px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-text-muted);
        }
        
        a {
            color: var(--color-info);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        
        a:hover {
            color: var(--color-success);
        }
        
        .container {
            max-width: var(--content-max-width);
            margin: 0 auto;
            padding: var(--spacing-xl) var(--spacing-lg) 60px;
        }
        
        /* ============ Header (Hero) ============ */
        .header {
            text-align: center;
            padding: var(--spacing-3xl) var(--spacing-lg);
            margin-bottom: var(--spacing-xl);
        }
        
        .header-badge {
            display: inline-flex;
            align-items: center;
            gap: var(--spacing-sm);
            padding: var(--spacing-xs) 14px;
            background: var(--gradient-badge);
            color: var(--color-info);
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
            border: 1px solid rgba(37, 99, 235, 0.12);
            box-shadow: var(--shadow-xs);
            position: relative;
        }
        
        /* 渐变文字标题 - 核心视觉特征 */
        .header-title {
            font-size: 39px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            background: var(--gradient-hero);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            position: relative;
        }
        
        .header-subtitle {
            font-size: 15px;
            color: var(--color-text-secondary);
            max-width: 580px;
            margin: 0 auto;
            line-height: 1.6;
            position: relative;
        }
        
        /* ============ Stats Grid ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-xl);
        }
        
        @media (max-width: 900px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 600px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .stat-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            padding: var(--spacing-lg);
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-success);
            opacity: 0;
            transition: var(--transition-normal);
        }
        
        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-success);
        }
        
        .stat-card:hover::before {
            opacity: 1;
        }
        
        .stat-value {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: var(--spacing-xs);
            letter-spacing: -0.02em;
        }
        
        .stat-value.green { color: var(--color-success); }
        .stat-value.blue { color: var(--color-info); }
        .stat-value.purple { color: var(--color-purple); }
        .stat-value.orange { color: var(--color-warning); }
        
        .stat-label {
            font-size: 12px;
            color: var(--color-text-muted);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        /* ============ Tab Navigation (Glassmorphism) ============ */
        .tab-nav {
            display: flex;
            flex-wrap: nowrap;
            gap: 4px;
            background: rgba(255,255,255,0.85);
            backdrop-filter: blur(10px) saturate(1.4);
            -webkit-backdrop-filter: blur(10px) saturate(1.4);
            will-change: backdrop-filter;
            border: 1px solid rgba(255,255,255,0.7);
            border-radius: var(--radius-lg);
            padding: 5px;
            margin-bottom: var(--spacing-lg);
            box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0,0,0,0.03);
            position: sticky;
            top: 80px;
            z-index: 70;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        
        .tab-btn {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 16px;
            background: transparent;
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            font-family: inherit;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        
        .tab-btn:hover {
            background: var(--color-bg-table-header);
            color: var(--color-text-secondary);
        }
        
        .tab-btn.active {
            background: var(--gradient-success);
            color: #fff;
            box-shadow: var(--shadow-glow-success);
            font-weight: 600;
        }
        
        .tab-btn-icon {
            font-size: 18px;
        }
        
        .tab-panel {
            display: none;
            animation: fadeIn 0.3s ease-out;
        }
        
        .tab-panel.active {
            display: block;
        }
        
        /* 性能优化：延迟渲染不可见的Tab面板和折叠内容 */
        .tab-panel:not(.active) {
            content-visibility: auto;
            contain-intrinsic-size: auto 500px;
        }
        
        .collapsible-content:not(.active) {
            content-visibility: auto;
            contain-intrinsic-size: auto 300px;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        /* ============ Section Card ============ */
        .section {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
            box-shadow: var(--shadow-card);
        }
        
        .section-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-md);
            border-bottom: 1px solid var(--color-border-light);
        }
        
        .section-icon {
            width: 40px;
            height: 40px;
            background: var(--gradient-success);
            color: #fff;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            box-shadow: 0 2px 4px rgba(5, 150, 105, 0.25);
        }
        
        .section-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text-primary);
            letter-spacing: -0.01em;
        }
        
        .section-desc {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-top: 4px;
        }
        
        /* ============ Content Grid ============ */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 600px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        
        .content-card {
            background: var(--color-bg-table-header);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            transition: all var(--transition-normal);
            display: block;
            position: relative;
        }
        
        .content-card:hover {
            border-color: var(--color-success);
            background: rgba(5, 150, 105, 0.03);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        
        .content-card-header {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-sm);
        }
        
        .content-card-icon {
            font-size: 20px;
        }
        
        .content-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-primary);
            flex: 1;
        }
        
        .content-card-tag {
            display: inline-flex;
            padding: 2px 8px;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 500;
        }
        
        .content-card-tag.green {
            background: rgba(5, 150, 105, 0.12);
            color: var(--color-success);
        }
        
        .content-card-tag.blue {
            background: rgba(37, 99, 235, 0.12);
            color: var(--color-info);
        }
        
        .content-card-tag.orange {
            background: rgba(217, 119, 6, 0.12);
            color: var(--color-warning);
        }
        
        .content-card-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }
        
        .content-card-meta {
            margin-top: var(--spacing-sm);
            font-size: 12px;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        
        /* ============ List Style ============ */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        
        .list-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            padding: var(--spacing-md);
            background: var(--color-bg-table-header);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        
        .list-item:hover {
            border-color: var(--color-success);
            background: rgba(5, 150, 105, 0.03);
        }
        
        .list-item-icon {
            font-size: 24px;
            flex-shrink: 0;
        }
        
        .list-item-content {
            flex: 1;
        }
        
        .list-item-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: 2px;
        }
        
        .list-item-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            margin-top: 4px;
            line-height: 1.5;
        }
        
        .list-item-arrow {
            color: var(--color-success);
            font-size: 18px;
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        
        .list-item:hover .list-item-arrow {
            opacity: 1;
        }
        
        /* 列表项内「最新」标签与栏目分类标签（与 .tc-tag 配色一致） */
        .list-item-new {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: #047857;
            background: rgba(5, 150, 105, 0.12);
            border-radius: 999px;
            padding: 1px 7px;
            margin-left: 6px;
            vertical-align: middle;
        }
        .list-item-cat {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            border-radius: 999px;
            padding: 1px 8px;
            margin-left: 6px;
            vertical-align: middle;
        }
        .list-item-cat.trend   { background: rgba(37, 99, 235, 0.12); color: var(--color-info); }
        .list-item-cat.company { background: rgba(217, 119, 6, 0.12); color: var(--color-warning); }
        .list-item-cat.topic   { background: rgba(5, 150, 105, 0.12); color: var(--color-success-dark); }

        /* 头部下方：四个调研栏目导航卡片（与页面玻璃卡风格统一） */
        .col-cards {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-xl);
        }
        .col-card {
            position: relative;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px 18px 18px 22px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            text-decoration: none;
            color: inherit;
            overflow: hidden;
            transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
        }
        .col-card::before {
            content: '';
            position: absolute;
            left: 0; top: 0; bottom: 0;
            width: 4px;
        }
        .col-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent, var(--color-purple));
        }
        .col-card.cat-all     { --accent: #7C3AED; --accent-soft: #F5F3FF; }
        .col-card.cat-trend   { --accent: #2563EB; --accent-soft: #EFF6FF; }
        .col-card.cat-company { --accent: #D97706; --accent-soft: #FFFBEB; }
        .col-card.cat-topic   { --accent: #059669; --accent-soft: #ECFDF5; }
        .col-card-icon {
            flex: 0 0 auto;
            width: 42px; height: 42px;
            display: flex; align-items: center; justify-content: center;
            font-size: 20px;
            border-radius: 12px;
            background: var(--accent-soft, #F5F3FF);
            color: var(--accent, var(--color-purple));
        }
        .col-card-body { flex: 1 1 auto; min-width: 0; }
        .col-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 4px;
        }
        .col-card-desc {
            font-size: 12.5px;
            line-height: 1.55;
            color: var(--color-text-muted);
        }
        .col-card-arrow {
            flex: 0 0 auto;
            align-self: center;
            margin-left: 4px;
            color: var(--accent, var(--color-purple));
            font-size: 18px;
            opacity: .5;
            transition: opacity .18s ease, transform .18s ease;
        }
        .col-card:hover .col-card-arrow {
            opacity: 1;
            transform: translateX(3px);
        }
        @media (max-width: 860px) {
            .col-cards { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .col-cards { grid-template-columns: 1fr; }
        }

        /* 列表项按栏目配色：圆形图标底色 + 左侧色条 + 悬停随栏目色（深度调研=紫 / 趋势=蓝 / 公司=橙 / 专题=绿） */
        .list-item-icon {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(124, 58, 237, 0.10);
        }
        .list-item.cat-all     { border-left: 3px solid #7c3aed; }
        .list-item.cat-trend   { border-left: 3px solid #2563eb; }
        .list-item.cat-company { border-left: 3px solid #d97706; }
        .list-item.cat-topic   { border-left: 3px solid #059669; }
        .list-item.cat-all     .list-item-icon { background: rgba(124, 58, 237, 0.12); }
        .list-item.cat-trend   .list-item-icon { background: rgba(37, 99, 235, 0.12); }
        .list-item.cat-company .list-item-icon { background: rgba(217, 119, 6, 0.12); }
        .list-item.cat-topic   .list-item-icon { background: rgba(5, 150, 105, 0.12); }
        .list-item.cat-all:hover     { border-color: #7c3aed; background: rgba(124, 58, 237, 0.04); }
        .list-item.cat-trend:hover   { border-color: #2563eb; background: rgba(37, 99, 235, 0.04); }
        .list-item.cat-company:hover { border-color: #d97706; background: rgba(217, 119, 6, 0.04); }
        .list-item.cat-topic:hover   { border-color: #059669; background: rgba(5, 150, 105, 0.04); }
        
        /* ============ Category Section ============ */
        .category-section {
            margin-bottom: var(--spacing-lg);
        }
        
        .category-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        
        .category-title::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--gradient-success);
            border-radius: 2px;
        }
        
        /* ============ 深度调研时间轴 ============ */
        /* 研究区域顶部工具栏 */
        .research-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-xl);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid var(--color-border-light);
        }
        
        .research-stats {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
        }
        
        .research-stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 12px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 500;
            color: var(--color-text-secondary);
        }

        /* 深度调研分类子TAB */
        .research-subnav {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            align-items: center;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 4px;
        }
        
        .rs-tab {
            appearance: none;
            border: none;
            background: transparent;
            cursor: pointer;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        
        .rs-tab:hover {
            color: var(--color-text-primary);
            background: rgba(99,102,241,0.08);
        }
        
        .rs-tab.active {
            color: #fff;
            background: linear-gradient(135deg, var(--color-info), var(--color-purple));
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(99,102,241,0.25);
        }
        

        /* 时间轴主体 */
        .timeline-container {
            position: relative;
            padding-left: 0;
        }
        
        /* 时间轴左侧垂直线 */
        .timeline-container::before {
            content: '';
            position: absolute;
            left: 56px;
            top: 28px;
            bottom: 40px;
            width: 2px;
            background: linear-gradient(to bottom, var(--color-success), rgba(5,150,105,0.1));
            border-radius: 2px;
        }
        
        /* 月份节点 */
        .timeline-month {
            margin-bottom: var(--spacing-2xl);
        }
        
        .timeline-month-header {
            display: flex;
            align-items: center;
            gap: 0;
            margin-bottom: var(--spacing-md);
            position: relative;
        }
        
        /* 月份标签 */
        .timeline-month-label {
            width: 48px;
            text-align: center;
            font-size: 11px;
            font-weight: 700;
            color: var(--color-success-dark);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }
        
        /* 时间轴节点圆点 */
        .timeline-dot-wrapper {
            width: 24px;
            display: flex;
            justify-content: center;
            position: relative;
            z-index: 1;
        }
        
        .timeline-dot-outer {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--color-bg-card);
            border: 2px solid var(--color-success);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .timeline-dot-inner {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-success);
        }
        
        /* 月份描述文字 */
        .timeline-month-info {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex: 1;
            padding-left: var(--spacing-sm);
        }
        
        .timeline-month-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-primary);
        }
        
        .timeline-month-count {
            font-size: 11px;
            padding: 2px 8px;
            background: var(--color-success-50);
            color: var(--color-success-dark);
            border-radius: var(--radius-full);
            font-weight: 600;
        }
        
        /* 卡片网格区域 */
        .timeline-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
            margin-left: 80px; /* 与时间轴线对齐后向右偏移 */
        }
        
        @media (max-width: 900px) {
            .timeline-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 600px) {
            .timeline-cards {
                grid-template-columns: 1fr;
                margin-left: 0;
            }
            .timeline-container::before {
                display: none;
            }
        }
        
        /* 时间轴卡片样式 */
        .timeline-card {
            display: block;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: 12px 14px;
            transition: all var(--transition-normal);
            border-left-width: 3px;
            text-decoration: none;
            position: relative;
        }
        
        .timeline-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        
        /* 按类别的左边框颜色 */
        .timeline-card.cat-trend {
            border-left-color: var(--color-info);
        }
        .timeline-card.cat-trend:hover {
            border-color: var(--color-info);
            border-left-color: var(--color-info);
            background: rgba(37,99,235,0.02);
        }
        
        .timeline-card.cat-company {
            border-left-color: var(--color-warning);
        }
        .timeline-card.cat-company:hover {
            border-color: var(--color-warning);
            border-left-color: var(--color-warning);
            background: rgba(217,119,6,0.02);
        }
        
        .timeline-card.cat-topic {
            border-left-color: var(--color-success);
        }
        .timeline-card.cat-topic:hover {
            border-color: var(--color-success);
            border-left-color: var(--color-success);
            background: rgba(5,150,105,0.02);
        }
        
        .timeline-card.cat-people {
            border-left-color: var(--color-purple);
        }
        .timeline-card.cat-people:hover {
            border-color: var(--color-purple);
            border-left-color: var(--color-purple);
            background: rgba(124,58,237,0.02);
        }
        
        /* 卡片内容 */
        .tc-header {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-bottom: 6px;
        }
        
        .tc-icon {
            font-size: 16px;
            flex-shrink: 0;
            margin-top: 1px;
        }
        
        .tc-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-primary);
            line-height: 1.4;
            flex: 1;
        }
        
        .tc-tag {
            display: inline-flex;
            padding: 1px 6px;
            border-radius: var(--radius-full);
            font-size: 10px;
            font-weight: 500;
            flex-shrink: 0;
        }
        
        .tc-tag.trend { background: rgba(37,99,235,0.12); color: var(--color-info); }
        .tc-tag.company { background: rgba(217,119,6,0.12); color: var(--color-warning); }
        .tc-tag.topic { background: rgba(5,150,105,0.12); color: var(--color-success-dark); }
        .tc-tag.people { background: rgba(124,58,237,0.12); color: var(--color-purple); }
        
        .tc-desc {
            font-size: 12px;
            color: var(--color-text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .tc-meta {
            margin-top: 6px;
            font-size: 11px;
            color: var(--color-text-muted);
        }
        
        /* 隐藏状态（筛选用）*/
        .timeline-card.tc-hidden {
            display: none;
        }
        
        .timeline-month.tm-empty {
            display: none;
        }
        
        /* ============ Tracking Table ============ */
        .tracking-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 13px;
        }
        
        .tracking-table th,
        .tracking-table td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--color-border-light);
        }
        
        .tracking-table th {
            background: var(--color-bg-table-header);
            font-weight: 600;
            color: var(--color-text-secondary);
            font-size: 12px;
            letter-spacing: 0.02em;
            text-transform: uppercase;
        }
        
        .tracking-table tbody tr:hover td {
            background: rgba(5, 150, 105, 0.03);
        }
        
        .tracking-table .tier-badge {
            display: inline-flex;
            padding: 2px 8px;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 600;
        }
        
        .tier-badge.l1 {
            background: rgba(5, 150, 105, 0.12);
            color: var(--color-success);
        }
        
        .tier-badge.l2 {
            background: rgba(37, 99, 235, 0.12);
            color: var(--color-info);
        }
        
        .tier-badge.l3 {
            background: rgba(217, 119, 6, 0.12);
            color: var(--color-warning);
        }
        
        /* ============ Collapsible Sections ============ */
        .collapsible-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md);
            background: var(--color-bg-table-header);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition-fast);
            user-select: none;
        }
        
        .collapsible-header:hover {
            background: rgba(5, 150, 105, 0.05);
            border-color: var(--color-success);
        }
        
        .collapsible-header.active {
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            border-bottom: none;
            background: var(--gradient-success);
            color: white;
        }
        
        .collapsible-header.active .collapsible-icon {
            color: white;
            transform: rotate(180deg);
        }
        
        .collapsible-header.active .collapsible-title {
            color: white;
        }
        
        .collapsible-header.active .collapsible-count {
            background: rgba(255,255,255,0.2);
            color: white;
        }
        
        .collapsible-left {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }
        
        .collapsible-emoji {
            font-size: 20px;
        }
        
        .collapsible-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-primary);
        }
        
        .collapsible-count {
            font-size: 12px;
            padding: 2px 8px;
            background: rgba(5, 150, 105, 0.1);
            color: var(--color-success);
            border-radius: var(--radius-full);
            font-weight: 600;
        }
        
        .collapsible-icon {
            font-size: 16px;
            color: var(--color-text-muted);
            transition: transform var(--transition-normal);
        }
        
        .collapsible-content {
            display: none;
            border: 1px solid var(--color-border-light);
            border-top: none;
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            overflow: hidden;
            animation: slideDown 0.3s ease-out;
        }
        
        .collapsible-content.active {
            display: block;
        }
        
        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* ============ Calendar Styles (Prominent) ============ */
        .calendar-section-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: var(--spacing-xl);
            margin-bottom: var(--spacing-md);
            padding-bottom: var(--spacing-sm);
            border-bottom: 1px solid var(--color-border-light);
        }
        
        .calendar-section-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-primary);
        }
        
        .calendar-section-hint {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-left: auto;
        }
        
        .calendar-container {
            margin-top: var(--spacing-sm);
            max-width: 520px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-card);
        }
        
        .calendar-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
        }
        
        .calendar-month {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text-primary);
            letter-spacing: -0.01em;
        }
        
        .calendar-nav {
            display: flex;
            gap: 2px;
        }
        
        .calendar-nav-btn {
            width: 30px;
            height: 30px;
            border: 1px solid var(--color-border);
            background: var(--color-bg-card);
            border-radius: var(--radius-sm);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
        }
        
        .calendar-nav-btn:hover {
            border-color: var(--color-success);
            color: var(--color-success);
            background: rgba(5, 150, 105, 0.05);
        }
        
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 4px;
        }
        
        .calendar-weekday {
            text-align: center;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-muted);
            padding: 4px 0;
        }
        
        .calendar-day {
            width: 100%;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-sm);
            background: var(--color-bg-table-header);
            border: 1px solid transparent;
            transition: all var(--transition-fast);
        }
        
        .calendar-day.empty {
            background: transparent;
            border: none;
        }
        
        .calendar-day.has-report {
            background: rgba(5, 150, 105, 0.15);
            color: var(--color-success);
            font-weight: 600;
            cursor: pointer;
            border-color: rgba(5, 150, 105, 0.3);
        }
        
        .calendar-day.has-report:hover {
            background: var(--color-success);
            color: white;
            transform: scale(1.05);
        }
        
        .calendar-day.today {
            border: 2px solid var(--color-info);
            font-weight: 700;
        }
        
        .calendar-day.today.has-report {
            border-color: var(--color-success);
        }
        
        /* 周报标识 */
        .calendar-day.has-weekly {
            position: relative;
        }
        
        .calendar-day.has-weekly::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 4px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--color-purple), var(--color-success));
            box-shadow: 0 1px 3px rgba(124, 58, 237, 0.4);
        }
        
        /* 同日既有日报又有周报时，周报小链接触达底部横条 */
        .calendar-weekly-link {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 12px;
            z-index: 3;
        }
        

        /* 周报入口卡片 */
        .weekly-report-card {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            padding: var(--spacing-md) var(--spacing-lg);
            background: linear-gradient(135deg, #EFF6FF 0%, #F5F3FF 100%);
            border: 1px solid rgba(37, 99, 235, 0.2);
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
            margin-bottom: var(--spacing-md);
            text-decoration: none;
            color: inherit;
        }
        
        .weekly-report-card:hover {
            border-color: var(--color-info);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-info);
        }
        
        .weekly-report-card .wrc-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-info) 0%, var(--color-purple) 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
        }
        
        .weekly-report-card .wrc-content {
            flex: 1;
        }
        
        .weekly-report-card .wrc-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 2px;
        }
        
        .weekly-report-card .wrc-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        
        .weekly-report-card .wrc-badge {
            display: inline-flex;
            padding: 3px 10px;
            background: linear-gradient(135deg, var(--color-info), var(--color-purple));
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 600;
            margin-left: 8px;
        }
        
        .weekly-report-card .wrc-arrow {
            font-size: 20px;
            color: var(--color-info);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        
        .weekly-report-card:hover .wrc-arrow {
            opacity: 1;
        }
        
        /* 最新深度调研精选卡 */
        .research-report-card {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            padding: var(--spacing-md) var(--spacing-lg);
            background: linear-gradient(135deg, #F5F3FF 0%, #ECFDF5 100%);
            border: 1px solid rgba(124, 58, 237, 0.2);
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
            margin-bottom: var(--spacing-md);
            text-decoration: none;
            color: inherit;
        }
        
        .research-report-card:hover {
            border-color: var(--color-purple);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.18);
        }
        
        .research-report-card .rrc-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-success) 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 2px 6px rgba(124, 58, 237, 0.3);
        }
        
        .research-report-card .rrc-content {
            flex: 1;
        }
        
        .research-report-card .rrc-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 2px;
        }
        
        .research-report-card .rrc-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        
        .research-report-card .rrc-badge {
            display: inline-flex;
            padding: 3px 10px;
            background: linear-gradient(135deg, var(--color-purple), var(--color-success));
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 600;
            margin-left: 8px;
        }
        
        .research-report-card .rrc-type {
            display: inline-flex;
            padding: 3px 10px;
            background: rgba(124, 58, 237, 0.12);
            color: var(--color-purple);
            border: 1px solid rgba(124, 58, 237, 0.25);
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 600;
            margin-left: 6px;
        }
        
        .research-report-card .rrc-arrow {
            font-size: 20px;
            color: var(--color-purple);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        
        .research-report-card:hover .rrc-arrow {
            opacity: 1;
        }
        

        .calendar-legend {
            display: flex;
            gap: 14px;
            margin-top: 12px;
            padding-top: 10px;
            border-top: 1px solid var(--color-border-light);
            font-size: 12px;
            color: var(--color-text-muted);
        }
        
        .calendar-legend-item {
            display: flex;
            align-items: center;
            gap: 3px;
        }
        
        .calendar-legend-dot {
            width: 8px;
            height: 8px;
            border-radius: 2px;
        }
        
        .calendar-legend-dot.has-report {
            background: rgba(5, 150, 105, 0.25);
            border: 1px solid var(--color-success);
        }
        
        .calendar-legend-dot.today {
            background: transparent;
            border: 1.5px solid var(--color-info);
        }
        
        .calendar-legend-dot.has-weekly {
            width: 18px;
            height: 4px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--color-purple), var(--color-success));
            border: none;
            box-shadow: 0 1px 3px rgba(124, 58, 237, 0.4);
        }

        .calendar-legend-dot.has-both {
            width: 18px;
            height: 4px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--color-info) 50%, var(--color-purple) 50%);
            border: none;
            box-shadow: 0 1px 3px rgba(37, 99, 235, 0.4);
        }

        /* 日历格子内 日报/周报 角标 + 点击 */
        .calendar-day.clickable { cursor: pointer; }
        .calendar-day.clickable:hover { border-color: var(--color-info); box-shadow: 0 2px 8px rgba(37,99,235,0.18); }
        .calendar-day .day-badge {
            position: absolute;
            bottom: 3px;
            font-size: 9px;
            line-height: 1;
            padding: 2px 4px;
            border-radius: 4px;
            font-weight: 600;
            pointer-events: none;
        }
        .calendar-day .day-badge.daily { left: 4px; background: rgba(37,99,235,0.14); color: #2563EB; }
        .calendar-day .day-badge.weekly { right: 4px; background: rgba(124,58,237,0.14); color: #7C3AED; }

        /* 同日含日报+周报 弹出选择菜单 */
        .day-popup {
            position: fixed;
            z-index: 1000;
            display: none;
            min-width: 184px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            font-size: 13px;
            font-family: var(--font-body, inherit);
        }
        .day-popup-item {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 11px 14px;
            color: var(--color-text-primary);
            text-decoration: none;
            border-bottom: 1px solid var(--color-border-light);
        }
        .day-popup-item:last-child { border-bottom: none; }
        .day-popup-item:hover { background: var(--color-bg-hover, #f4f7fb); }
        .day-popup-item b { font-weight: 700; }
        .day-popup-item.daily { color: #2563EB; }
        .day-popup-item.weekly { color: #7C3AED; }

        /* 往期周报 内联链接 */
        .past-weekly-wrap { margin: 16px 0 4px; }
        .past-weekly-label { font-size: 14px; font-weight: 700; color: var(--color-text-secondary); margin-bottom: 10px; }
        .past-weekly-list { display: flex; flex-wrap: wrap; gap: 8px 16px; }
        .past-weekly-link {
            font-size: 12.5px;
            color: var(--color-text-secondary);
            text-decoration: none;
            transition: color .15s;
            white-space: nowrap;
        }
        .past-weekly-link:hover { color: var(--color-purple, #7C3AED); }

        

        .calendar-report-count {
            font-size: 12px;
            color: var(--color-success);
            font-weight: 600;
            margin-left: auto;
        }
        
        /* ============ Footer ============ */
        .footer {
            text-align: center;
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
            margin-top: var(--spacing-3xl);
            border-top: 1px solid var(--color-border-light);
            color: var(--color-text-muted);
            font-size: 13px;
        }
        
        .footer a {
            color: var(--color-success);
            font-weight: 500;
        }
        
        .footer a:hover {
            color: var(--color-success-dark);
        }
        
        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: var(--gradient-badge);
            border-radius: var(--radius-full);
            font-size: 12px;
            margin-bottom: 8px;
            border: 1px solid rgba(5, 150, 105, 0.1);
        }
        
        /* ============ Knowledge Tree Styles ============ */
        /* ============ 知识库架构样式 ============ */
        .kb-architecture {
            padding: var(--spacing-md) var(--spacing-lg);
            background: linear-gradient(180deg, #FAFAF9 0%, #F5F5F4 100%);
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
        }
        
        /* 分层标签 - 移除 */
        .kb-layer-labels, .kb-version, .kb-root, .kb-layer-connector, .kb-architecture-note {
            display: none;
        }
        
        .label-text {
            font-weight: 600;
            color: var(--color-text-primary);
        }
        
        .label-desc {
            color: var(--color-text-muted);
        }
        
        /* 分层容器 */
        .kb-layer {
            margin-bottom: var(--spacing-md);
        }
        
        .layer-title {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: var(--spacing-sm);
            padding: 6px 14px;
            background: var(--color-bg-card);
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-secondary);
            box-shadow: var(--shadow-sm);
        }
        
        .layer-icon {
            font-size: 14px;
        }
        
        .layer-stats {
            font-size: 11px;
            font-weight: 400;
            color: var(--color-text-muted);
            margin-left: 8px;
            padding-left: 8px;
            border-left: 1px solid var(--color-border);
        }
        
        /* 四大维度网格 */
        .kb-dimensions {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
        
        @media (max-width: 768px) {
            .kb-dimensions {
                grid-template-columns: 1fr;
            }
        }
        
        /* 维度卡片 */
        .kb-dimension {
            background: var(--color-bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }
        
        .kb-dimension:hover {
            border-color: rgba(5, 150, 105, 0.3);
            box-shadow: var(--shadow-sm);
        }
        
        .kb-dimension.core {
            border-color: var(--color-info);
        }
        
        .dim-header {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        
        .dim-header:hover {
            background: rgba(5, 150, 105, 0.03);
        }
        
        .dim-icon {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-size: 18px;
            color: white;
        }
        
        .dim-models .dim-icon { background: linear-gradient(135deg, #059669, #10B981); }
        .dim-agent .dim-icon { background: linear-gradient(135deg, #2563EB, #1D4ED8); }
        .dim-companies .dim-icon { background: linear-gradient(135deg, #7C3AED, #6D28D9); }
        .dim-enterprise .dim-icon { background: linear-gradient(135deg, #D97706, #B45309); }
        
        .dim-info {
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .dim-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-primary);
        }
        
        .dim-count {
            font-size: 11px;
            color: var(--color-text-muted);
            margin-top: 1px;
        }
        
        .dim-count.core {
            color: var(--color-info);
            font-weight: 600;
        }
        
        .dim-toggle {
            font-size: 10px;
            color: var(--color-text-muted);
            transition: transform var(--transition-normal);
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-bg);
            border-radius: 50%;
        }
        
        .kb-dimension[data-expanded="true"] .dim-toggle {
            transform: rotate(90deg);
            background: var(--color-success);
            color: white;
        }
        
        .dim-content {
            display: none;
            padding: var(--spacing-sm) var(--spacing-md);
            border-top: 1px solid var(--color-border-light);
            background: linear-gradient(180deg, rgba(246,248,250,0.5) 0%, transparent 100%);
        }
        
        .kb-dimension[data-expanded="true"] .dim-content {
            display: block;
            animation: slideDown 0.2s ease-out;
        }
        
        .dim-desc {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-bottom: var(--spacing-xs);
        }
        
        .dim-stats {
            display: flex;
            gap: var(--spacing-xs);
            margin-bottom: var(--spacing-xs);
            font-size: 11px;
            color: var(--color-text-secondary);
        }
        
        .dim-stats span {
            padding: 2px 8px;
            background: var(--color-bg);
            border-radius: var(--radius-full);
        }
        
        .dim-items {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        
        .kb-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            background: var(--color-bg-card);
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        
        .kb-item:hover {
            background: linear-gradient(135deg, rgba(5, 150, 105, 0.06) 0%, rgba(37, 99, 235, 0.04) 100%);
            border-color: var(--color-success);
            transform: translateX(3px);
        }
        
        .item-icon {
            font-size: 14px;
        }
        
        .item-text {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-primary);
            flex: 1;
        }
        
        .item-tag {
            font-size: 9px;
            padding: 2px 6px;
            border-radius: var(--radius-full);
            font-weight: 500;
        }
        
        .item-tag.new {
            background: linear-gradient(135deg, #E11D48, #F43F5E);
            color: white;
            animation: pulse 2s ease-in-out infinite;
        }
        
        /* 底层基础设施 */
        .kb-foundations {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
        }
        
        @media (max-width: 992px) {
            .kb-foundations {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 576px) {
            .kb-foundations {
                grid-template-columns: 1fr;
            }
        }
        
        .kb-foundation {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: var(--spacing-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }
        
        .kb-foundation:hover {
            box-shadow: var(--shadow-sm);
        }
        
        .foundation-entities { border-left: 3px solid #7C3AED; }
        .foundation-concepts { border-left: 3px solid #2563EB; }
        .foundation-practices { border-left: 3px solid #10B981; }
        .foundation-insights { border-left: 3px solid #D97706; }
        
        .foundation-header {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: var(--spacing-xs);
        }
        
        .foundation-icon {
            font-size: 16px;
        }
        
        .foundation-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-primary);
        }
        
        .foundation-stats {
            display: flex;
            gap: var(--spacing-xs);
            margin-bottom: var(--spacing-xs);
            font-size: 11px;
            color: var(--color-text-muted);
        }
        
        .stat-item strong {
            color: var(--color-success);
        }
        
        .foundation-items {
            display: flex;
            flex-direction: column;
            gap: 2px;
            max-height: 120px;
            overflow-y: auto;
        }
        
        .foundation-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 5px 8px;
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        
        .foundation-link:hover {
            background: rgba(124, 58, 237, 0.06);
        }
        
        .link-avatar {
            font-size: 12px;
        }
        
        .link-name {
            font-size: 12px;
            font-weight: 500;
            color: var(--color-text-primary);
            flex: 1;
        }
        
        .link-org {
            font-size: 9px;
            padding: 1px 5px;
            background: var(--color-bg);
            border-radius: var(--radius-sm);
            color: var(--color-text-muted);
        }
        
        /* 概念标签 */
        .foundation-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
        }
        
        .concept-tag, .practice-tag {
            display: inline-block;
            padding: 4px 8px;
            font-size: 11px;
            font-weight: 500;
            border-radius: var(--radius-full);
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        
        .concept-tag {
            background: rgba(37, 99, 235, 0.08);
            color: var(--color-info);
            border: 1px solid rgba(37, 99, 235, 0.15);
        }
        
        .concept-tag:hover {
            background: rgba(37, 99, 235, 0.15);
            border-color: var(--color-info);
        }
        
        .concept-tag.new {
            background: linear-gradient(135deg, #E11D48, #F43F5E);
            color: white;
            border: none;
        }
        
        .practice-tag {
            background: rgba(16, 185, 129, 0.08);
            color: var(--color-success);
            border: 1px solid rgba(16, 185, 129, 0.15);
        }
        
        .practice-tag:hover {
            background: rgba(16, 185, 129, 0.15);
            border-color: var(--color-success);
        }
        
        /* 洞察链接 */
        .insight-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 5px 8px;
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        
        .insight-link:hover {
            background: rgba(217, 119, 6, 0.08);
        }
        
        .insight-icon {
            font-size: 12px;
        }
        
        .insight-text {
            font-size: 12px;
            font-weight: 500;
            color: var(--color-text-primary);
        }
        
        /* Tree Action Buttons */
        .tree-action-btn {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 14px;
            border: 1px solid var(--color-border);
            background: var(--color-bg-card);
            color: var(--color-text-secondary);
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        
        .tree-action-btn:hover {
            border-color: var(--color-success);
            color: var(--color-success);
            background: rgba(5, 150, 105, 0.05);
        }
        
        .tree-action-btn.primary {
            background: var(--gradient-success);
            border: none;
            color: white;
        }
        
        .tree-action-btn.primary:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }
        
        /* 本质洞察CTA按钮 */
        .insight-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: linear-gradient(135deg, #7C3AED 0%, #059669 100%);
            color: white;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        
        .insight-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(124, 58, 237, 0.4);
        }
        
        /* slideDown keyframes 已统一定义于上方，此处移除重复 */
        
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }
        
        /* ============ About Section: 为什么做 & 有什么特别 ============ */
        .about-section {
            margin-bottom: var(--spacing-xl);
        }

        .about-toggle-wrap {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }

        .about-toggle-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            cursor: pointer;
            font-family: inherit;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-secondary);
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .about-toggle-btn:hover {
            border-color: var(--color-info);
            color: var(--color-info);
            box-shadow: var(--shadow-glow-info);
            transform: translateY(-1px);
        }

        .about-toggle-btn .about-toggle-arrow {
            transition: transform var(--transition-normal);
            font-size: 12px;
        }

        .about-toggle-btn.expanded .about-toggle-arrow {
            transform: rotate(180deg);
        }

        .about-content {
            display: none;
            animation: fadeIn 0.4s ease-out;
        }

        .about-content.active {
            display: block;
        }

        /* Pain Points */
        .pain-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-2xl);
        }

        .pain-point-card {
            background: var(--color-bg-table-header);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .pain-point-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 3px;
            background: var(--color-danger);
            opacity: 0.7;
        }

        .pain-point-icon {
            font-size: 30px;
            margin-bottom: var(--spacing-sm);
        }

        .pain-point-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .pain-point-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* Solution Flow */
        .solution-flow {
            display: flex;
            align-items: flex-start;
            margin-bottom: var(--spacing-2xl);
            padding: var(--spacing-lg);
            background: var(--gradient-highlight);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
        }

        .flow-step {
            flex: 1;
            text-align: center;
            padding: 0 var(--spacing-sm);
        }

        .flow-step-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto var(--spacing-sm);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: white;
        }

        .flow-step-num {
            font-size: 11px;
            font-weight: 600;
            color: var(--color-text-muted);
            letter-spacing: 0.5px;
            margin-bottom: 2px;
        }

        .flow-step-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 4px;
        }

        .flow-step-desc {
            font-size: 12px;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        .flow-arrow {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            padding-top: 18px;
            font-size: 20px;
            color: var(--color-success);
            font-weight: 700;
        }

        /* Highlights */
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .highlight-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            padding: var(--spacing-lg);
            transition: all var(--transition-normal);
        }

        .highlight-card:hover {
            border-color: var(--color-success);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .highlight-icon {
            font-size: 28px;
            margin-bottom: var(--spacing-sm);
        }

        .highlight-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: var(--spacing-xs);
        }

        .highlight-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* About Architecture Image */
        .about-arch-img {
            display: block;
            max-width: 100%;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-card);
            margin: 0 auto var(--spacing-lg);
        }

        .about-sub-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-primary);
            margin-bottom: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .about-sub-title::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--gradient-hero);
            border-radius: 2px;
        }

        @media (max-width: 768px) {
            .pain-points-grid,
            .highlights-grid {
                grid-template-columns: 1fr;
            }
            .solution-flow {
                flex-direction: column;
                align-items: center;
                gap: var(--spacing-sm);
            }
            .flow-arrow {
                transform: rotate(90deg);
                padding-top: 0;
            }
        }

        /* ============ Mobile Responsive ============ */
        @media (max-width: 768px) {
            .header-title {
                font-size: 24px;
            }
            
            .tab-btn {
                padding: 10px 12px;
                font-size: 13px;
            }
            
            .tab-btn-text {
                display: none;
            }
            
            .section {
                padding: var(--spacing-md);
            }
            
            .tracking-table {
                font-size: 12px;
            }
            
            .tracking-table th,
            .tracking-table td {
                padding: 8px 10px;
            }
        }
    
/* ===== AI洞察补充：日历可点击覆盖层 ===== */
.calendar-day { position: relative; }
.calendar-day-link { position: absolute; inset: 0; z-index: 2; }
.calendar-day.has-report:hover .calendar-day-num,
.calendar-day.has-report:hover .calendar-day-link { color: #fff; }

/* ===== AI洞察补充：统计卡片可点（首页 AI日报/周报入口） ===== */
a.stat-card.stat-link {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    display: block;
}
a.stat-card.stat-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-info);
}
a.stat-card.stat-link:hover .stat-value.blue { color: var(--color-info); }
a.stat-card.stat-link:hover .stat-value.purple { color: var(--color-purple); }

/* ===== AI洞察列表页（日报/周报） ===== */
.list-page-head { padding: 16px 0 2px; }
.list-page-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    letter-spacing: -0.02em;
}
.list-page-sub {
    font-size: 13px;
    color: var(--color-text-muted);
    margin: 6px 0 0;
}
.load-more-wrap {
    display: flex;
    justify-content: center;
    padding: 22px 0 10px;
}
.load-more-btn {
    border: 1px solid var(--color-border-light);
    background: var(--color-bg-card);
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 30px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.load-more-btn:hover:not(:disabled) {
    border-color: var(--color-info);
    color: var(--color-info);
}
.load-more-btn:disabled { opacity: .55; cursor: default; }
.list-empty {
    text-align: center;
    color: var(--color-text-muted);
    padding: 40px 0;
    font-size: 14px;
}