feat(nav): 浅色模式导航重构(顶栏一级 + 侧边栏二级图标卡 + 三级右侧列)

浅色(红/蓝)主题改为与深色一致的导航逻辑,颜色经 --brand-* 变量自动切换:
- 一级导航正常横排进顶栏(白字落在 banner 上,选中加粗 + 底部粗白线)
- 二级导航为侧边栏图标卡片(图标主题色、文字 #222222、选中铺满列宽 + 右侧粗边)
- 三级导航改到侧边栏二级右侧的「三级列」:激活二级项有三级时整列展开、
  侧边栏 96→236px 整体变宽并带过渡动画,主内容左内边距同步平滑右移
- 顶栏三级横条改为仅深色用;浅色不支持侧边栏收起
- 任务管理二级项改用区分图标(ClipboardList/Activity/Gauge/Radar)
- 字体统一用全局 --font-sans,修复雅黑兜底下加粗不生效
- 抽出 getActiveThirdLevelItems / useActiveThirdLevel 供侧边栏与 PageRoutes 共用

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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董宏凯andClaude Opus 4.8 committed 2026-06-15 16:53:21 +08:00
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background: linear-gradient(90deg, rgba(62, 178, 255, 0) 0%, #4ee6ff 50%, rgba(62, 178, 255, 0) 100%);
box-shadow: 0 0 10px rgba(78, 230, 255, 0.72);
}
/* ══════════════════════════════════════════════════════════════════════
浅色主题导航(红/蓝两套,颜色经 --brand-* 变量自动切换)
逻辑同深色:一级导航在顶栏、二级导航在侧边栏、三级导航在顶栏下方横条。
但一级导航不做深色那种围绕基座的特殊处理,正常横排即可。
══════════════════════════════════════════════════════════════════════ */
/* ── 顶栏一级导航(白字落在 red/blue-header banner 上)──────────────────── */
.light-topnav {
display: flex;
align-items: center;
height: 64px;
min-width: 0;
gap: 6px;
/* 整体往右移(用百分比,随容器宽度自适应;约等于宽屏下的 200px 量级) */
margin-left: 10%;
overflow-x: auto;
overflow-y: hidden;
}
.light-topnav-item {
position: relative;
flex: 0 0 auto;
display: inline-flex;
align-items: center;
justify-content: center;
height: 60px;
padding: 0 18px;
border: 0;
background: transparent;
color: rgba(255, 255, 255, 0.85);
/* 复用全局字体栈(与「多智能体会商」等页面一致):Source Han Sans SC 在 Windows 上
常按字重分家族,放栈首会导致 font-weight 选不到粗体;用 --font-sans(Noto Sans SC
领先)才能正常加粗。 */
font-family: var(--font-sans);
font-size: 16px;
/* 普通项用 500(雅黑兜底下渲染为常规字面),选中项 700 才能看出粗体对比 */
font-weight: 500;
line-height: 1;
white-space: nowrap;
cursor: pointer;
transition: color 0.18s ease;
}
.light-topnav-item:hover {
color: #ffffff;
}
/* 选中态:不改背景,文字加粗变亮 + 贴近导航栏底部一条粗白线 */
.light-topnav-item--active,
.light-topnav-item--active:hover {
color: #ffffff;
font-weight: 700;
}
.light-topnav-item--active::after {
content: '';
position: absolute;
left: 12px;
right: 12px;
bottom: 0;
height: 4px;
border-radius: 3px 3px 0 0;
background: #ffffff;
}
/* ── 侧边栏:二级图标卡片列(96px)+ 右侧三级列(展开时整体变宽,带过渡)──────── */
.light-sidebar {
position: fixed;
left: 0;
top: 4rem;
z-index: 40;
width: 96px;
height: calc(100vh - 4rem);
display: flex;
flex-direction: row;
background: #ffffff;
border-right: 1px solid var(--border);
box-sizing: border-box;
overflow: hidden;
/* 展开三级列时整体变宽的过渡动画 */
transition: width 0.3s ease;
}
/* 展开三级列:96(二级) + 140(三级) = 236px */
.light-sidebar--expanded {
width: 236px;
}
/* 二级列:固定 96px,竖排图标卡片 + 底部设置 */
.light-sidebar__primary {
flex: 0 0 96px;
width: 96px;
height: 100%;
display: flex;
flex-direction: column;
/* 横向 padding 置 0:让选中态浅红背景能铺满与列宽一致 */
padding: 10px 0;
box-sizing: border-box;
}
/* 三级列:固定 140px,随侧边栏展开淡入 */
.light-sidebar__secondary {
flex: 0 0 140px;
width: 140px;
height: 100%;
border-left: 1px solid var(--border);
/* 横向 padding 置 0:让三级选中背景能铺满与列宽一致(文字内缩由 subitem 自身 padding 保证) */
padding: 12px 0;
box-sizing: border-box;
overflow-y: auto;
overflow-x: hidden;
background: #ffffff;
opacity: 0;
transition: opacity 0.2s ease;
}
.light-sidebar--expanded .light-sidebar__secondary {
opacity: 1;
}
.light-sidebar__list {
flex: 1;
display: flex;
flex-direction: column;
gap: 6px;
overflow-y: auto;
overflow-x: hidden;
}
.light-sidebar-item {
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 8px;
width: 100%;
padding: 14px 4px;
border: 0;
border-radius: 0;
background: transparent;
color: #222222;
/* 复用全局字体栈,确保加粗生效(详见 .light-topnav-item 注释) */
font-family: var(--font-sans);
font-size: 16px;
font-weight: 500;
line-height: 1.3;
text-align: center;
cursor: pointer;
transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}
.light-sidebar-item__icon {
flex-shrink: 0;
/* 图标统一用主题色(红主题红、蓝主题蓝) */
color: var(--brand-900);
transition: color 0.18s ease, transform 0.18s ease;
}
.light-sidebar-item__label {
display: block;
width: 100%;
word-break: break-word;
}
.light-sidebar-item:hover {
background: var(--brand-200);
}
.light-sidebar-item:hover .light-sidebar-item__icon {
color: var(--brand-900);
transform: scale(1.05);
}
.light-sidebar-item--active {
background: var(--brand-200);
color: var(--brand-900);
font-weight: 600;
/* 选中态:去圆角去边框,浅红底铺满父元素宽度,右侧一条粗主题色边(用 inset 阴影避免挤压内容) */
box-shadow: inset -4px 0 0 0 var(--brand-900);
}
.light-sidebar-item--active .light-sidebar-item__icon {
color: var(--brand-900);
}
/* 侧边栏底部:设置入口(浅色模式不支持收起,故无收起按钮) */
.light-sidebar__footer {
margin-top: auto;
display: flex;
flex-direction: column;
gap: 4px;
padding-top: 8px;
border-top: 1px solid var(--border);
}
/* ── 三级列条目(左对齐图标 + 文字,参考 xiugai-1.png)─────────────────────── */
.light-sidebar-subnav {
display: flex;
flex-direction: column;
gap: 2px;
}
.light-sidebar-subitem {
position: relative;
display: flex;
align-items: center;
gap: 8px;
width: 100%;
padding: 10px;
border: 0;
background: transparent;
color: #222222;
font-family: var(--font-sans);
font-size: 14px;
font-weight: 500;
line-height: 1.3;
text-align: left;
cursor: pointer;
transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}
.light-sidebar-subitem__icon {
flex-shrink: 0;
/* 图标用主题色(红主题红、蓝主题蓝) */
color: var(--brand-900);
}
.light-sidebar-subitem__label {
flex: 1;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
.light-sidebar-subitem:hover {
background: var(--brand-200);
}
.light-sidebar-subitem--active {
background: var(--brand-200);
color: var(--brand-900);
font-weight: 700;
box-shadow: inset -4px 0 0 0 var(--brand-900);
}