update 20260210
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source/_posts/2026/2026.2/add-float-menu.md
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source/_posts/2026/2026.2/add-float-menu.md
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---
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title: 添加网站左上角菜单
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cover: https://pic.biss.click/image/a40baba1-b296-4b3b-a781-da45bffb1b95.webp
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categories: 建站手札
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series: webcustom
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tags:
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- 网站
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abbrlink: '7e921903'
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summary: >-
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这篇文章详细介绍了如何在柳神的网站上添加一个自定义的左上角菜单，包括菜单的结构、样式以及响应式设计。作者提供了具体的HTML和CSS代码示例，展示了如何实现一个包含多个链接和功能的导航栏，同时确保在不同屏幕尺寸下的适配性。此外，还解释了一些关键的CSS属性和JavaScript交互效果，以实现平滑的菜单显示和隐藏。通过这些步骤，用户可以轻松地自定义和美化网站的顶部导航栏，提升用户体验。
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date: 2026-02-10 07:11:14
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---
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看到柳神的网站有这种菜单，但是没有写魔改教程，只好自己慢慢摸索了。
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{% link liushen,liushen,https://blog.liushen.fun %}
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预计做好后是这种效果：
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首先，修改```\themes\butterfly\layout\includes\header\nav.pug```:
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```pug
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nav#nav
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//- 左侧区域：包含指纹菜单和网站名
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span#blog-info
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#ls-menu-container
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i.fas.fa-fingerprint
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#ls-menu-panel
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.ls-section
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.ls-title 😀 个人网站
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.ls-grid
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a(href="/") #[i.fas.fa-rss] 个人博客
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a(href="https://github.com/bishshi") #[i.fab.fa-github] Github
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.ls-section
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.ls-title 😎 常用服务
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.ls-grid
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a(href="https://git.biss.click/biss") #[i.fas.fa-code] 代码仓库
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a(href="https://mm.biss.click") #[i.fas.fa-pen-nib] 日常yy
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a(href="https://statstic.biss.click") #[i.fas.fa-users] 访客统计
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a(href="https://pic.biss.click") #[i.fas.fa-image] 图床
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a(href="https://chat.biss.click") #[i.fas.fa-robot] AI网站
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.ls-section
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.ls-title 🛸 实用工具
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.ls-grid
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a(href="https://cover.biss.click") #[i.fas.fa-palette] 封面设计
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a.nav-site-title(href=url_for('/'))
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if theme.nav.logo
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img.site-icon(src=url_for(theme.nav.logo) alt='Logo')
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if theme.nav.display_title
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span.site-name=config.title
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//- 中间区域：关键！必须在 nav 下一级，以便 JS 切换类名
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if globalPageType === 'post' && theme.nav.display_post_title
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a.nav-page-title(href='javascript:void(0);' onclick='btf.scrollToDest(0, 500)')
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span.site-name=(page.title || config.title)
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//- 右侧区域
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#nav-right
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if theme.menu
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#menus
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!= partial('includes/header/menu_item', {}, {cache: true})
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if theme.search.use || true
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#random-post-button
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a.site-page.social-icon#random-post-link(href='javascript:void(0);' onclick='randomPost()')
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i.fas.fa-solid.fa-shuffle
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#search-button
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a.site-page.social-icon.search-typesense-trigger
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i.fas.fa-search.fa-fw
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#toggle-menu
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span.site-page
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i.fas.fa-bars.fa-fw
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```
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在合适的目录下新建```nav.css```（例如```\themes\butterfly\source\css\nav.css```），这份css是磨砂玻璃的样式:
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```css
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#nav-right{
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flex:1 1 auto;
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justify-content: flex-end;
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margin-left: auto;
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display: flex;
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flex-wrap:nowrap;
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}
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/* 导航栏居中 */
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#sidebar #sidebar-menus .menus_items .menus_item {
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margin: 10px 0;
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}
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#sidebar #sidebar-menus .menus_items a.site-page {
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padding-left: 0;
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}
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#sidebar #sidebar-menus .menus_items .site-page {
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position: relative;
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display: block;
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padding: 6px 30px 6px 22px;
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color: var(--font-color);
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font-size: 1.15em;
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border: var(--style-border-always);
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background: var(--icat-card-bg);
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font-size: 14px;
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border-radius: 12px;
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}
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#sidebar #sidebar-menus .menus_items .site-page i:first-child {
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text-align: left;
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padding-left: 10px;
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}
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#nav #menus {
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display: flex;
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justify-content: center;
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width: 100%;
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position: absolute;
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left: 0;
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margin: 0;
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transform: translateZ(0);
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}
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#nav #blog-info {
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flex-wrap: nowrap;
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display: flex;
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align-items: center;
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z-index: 102;
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max-width: fit-content;
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}
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@media screen and (max-width: 900px) {
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#nav {
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padding: 0 15px;
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}
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#nav-group {
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padding: 0 0.2rem;
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}
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#rightside {
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right: -42px;
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}
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}
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/* IPAD菜单栏调整 */
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/* 1. 容器溢出穿透 */
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#nav, #blog-info, #nav-group {
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overflow: visible !important;
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}
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#ls-menu-container {
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position: relative !important;
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display: inline-flex !important;
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align-items: center;
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height: 100%;
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padding: 0 15px;
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cursor: pointer !important;
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z-index: 2000 !important;
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}
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/* 2. 悬浮面板：宽大且高不透明度 */
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#ls-menu-panel {
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position: absolute !important;
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top: 100% !important;
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left: 0 !important;
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margin-top: 15px !important;
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width: 420px;
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padding: 24px;
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border-radius: 18px;
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/* 高不透明度磨砂玻璃 (0.9) */
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background: rgba(255, 255, 255, 0.95) !important;
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backdrop-filter: blur(20px) saturate(180%) !important;
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-webkit-backdrop-filter: blur(20px) saturate(180%) !important;
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border: 1px solid rgba(255, 255, 255, 0.5) !important;
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box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18) !important;
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opacity: 0 !important;
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visibility: hidden !important;
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transform: translateY(12px) !important;
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transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
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z-index: 999999 !important;
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cursor: default;
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}
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/* 3. 透明感应桥梁 */
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#ls-menu-panel::before {
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content: "";
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position: absolute;
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top: -20px;
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left: 0;
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right: 0;
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height: 25px;
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background: transparent !important;
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}
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/* 4. 触发效果 */
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#ls-menu-container:hover #ls-menu-panel {
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opacity: 1 !important;
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visibility: visible !important;
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transform: translateY(0) !important;
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}
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#ls-menu-container:hover i.fa-fingerprint {
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color: #49b1f5;
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transform: scale(1.1);
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}
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/* 5. 内部网格：保持两列 */
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.ls-section { margin-bottom: 22px; }
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.ls-section:last-child { margin-bottom: 0; }
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.ls-title {
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color: #333;
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font-weight: 800;
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font-size: 15px;
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margin-bottom: 12px;
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opacity: 0.9;
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}
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.ls-grid {
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display: grid !important;
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grid-template-columns: repeat(2, 1fr); /* 恢复为两列 */
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gap: 10px;
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}
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.ls-grid a {
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color: #444 !important;
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font-size: 14px !important;
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padding: 10px 12px;
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border-radius: 12px;
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display: flex;
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align-items: center;
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transition: all 0.2s ease;
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background: rgba(0, 0, 0, 0.02);
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}
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.ls-grid a:hover {
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background: #49b1f5 !important;
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color: #fff !important;
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transform: translateX(4px); /* 悬停时轻微右移，增加动感 */
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}
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.ls-grid a i {
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margin-right: 12px;
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width: 20px;
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text-align: center;
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font-size: 15px;
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}
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/* 6. 深色模式适配 */
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[data-theme='dark'] #ls-menu-panel {
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background: rgba(30, 30, 30, 0.95) !important;
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border-color: rgba(255, 255, 255, 0.1) !important;
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}
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[data-theme='dark'] .ls-title { color: #eee; }
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[data-theme='dark'] .ls-grid a {
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color: #ccc !important;
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background: rgba(255, 255, 255, 0.05);
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}
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#nav.show-title .nav-page-title {
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display: flex !important;
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opacity: 1 !important;
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visibility: visible !important;
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position: absolute !important;
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left: 50% !important;
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transform: translateX(-50%) !important;
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white-space: nowrap !important;
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z-index: 1000 !important;
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}
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#nav.show-title #menus,
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#nav.show-title .nav-site-title {
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opacity: 0 !important;
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visibility: hidden !important;
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pointer-events: none !important;
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}
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#nav .nav-page-title {
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display: none;
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transition: opacity 0.3s ease;
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}
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#nav #blog-info {
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overflow: visible !important;
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}
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```
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然后在```_config.butterfly.yml```里面引用该css
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```yml
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- <link rel="stylesheet" href="/css/nav.css">
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```
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然后重新构建应该就可以看到效果了。
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