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从Butterfly4.7.0开始，导航栏重写，不支持本教程的导航栏。
请尝试降级版本！

butterfly导航栏修改方案(自用方案) | 安知鱼 (anheyu.com)

自定义 css

添加自定义 css nav_menu.css, 注意其中的颜色代码需自行替换。这里提供一份我的颜色代码。

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#nav a:hover {
  background: var(--anzhiyu-main);
  transition: 0.3s;
}

#nav-totop:hover .totopbtn i {
  opacity: 1;
}
#nav-totop #percent {
  font-size: 12px;
  background: var(--anzhiyu-white);
  color: var(--anzhiyu-main);
  width: 25px;
  height: 25px;
  border-radius: 35px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 0.3s;
}
.nav-fixed #nav-totop #percent,
.page #nav-totop #percent {
  background: var(--font-color);
  color: var(--card-bg);
  font-size: 13px;
}

#nav-totop {
  width: 35px;
}
#page-header:not(.is-top-bar) #percent {
  transition: 0.3s;
}
#page-header:not(.is-top-bar) #nav-totop {
  width: 0;
  opacity: 0;
  transition: width 0.3s, opacity 0.2s;
  margin-left: 0 !important;
}
#nav-totop #percent {
  font-weight: 700;
}
#nav-totop:hover #percent {
  opacity: 0;
  transform: scale(1.5);
  font-weight: 700;
}
#page-header #nav #nav-right div {
  margin-left: 0.5rem;
  padding: 0;
}

#nav-totop {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.3s;
}
.nav-button {
  cursor: pointer;
}
div#menus {
  display: flex;
  align-items: center;
}
#page-header #nav .nav-button a {
  height: 35px;
  width: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#nav .site-page {
  padding-bottom: 0px;
}
#nav *::after {
  background-color: transparent !important;
}

/* 顶栏修改 */
#nav .menus_items .menus_item .menus_item_child li a {
  padding: 2px 16px;
}
#nav .menus_items .menus_item .menus_item_child li:hover a {
  color: white !important;
}

#nav .menus_items .menus_item .menus_item_child li {
  margin: 6px;
  border-radius: 5px;
  transition: all 0.3s;
  display: inline-block;
  margin: 0 3px;
}
#nav .menus_items .menus_item .menus_item_child:before {
  top: -19px;
}
#site-name,
.shuoshuo {
  white-space: nowrap;
  overflow: hidden;
}
#site-name {
  padding: 0 8px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.3s;
}

#blog_name #site-name i {
  opacity: 0;
  position: absolute;
}

#blog_name #site-name:hover .title {
  opacity: 0;
}

#blog_name #site-name:hover i {
  opacity: 1;
  transform: scale(1.01);
  color: white;
}
/* 圆角隐藏 */
ul.menus_item_child {
  border-radius: 5px;
}

/* 一级菜单居中 */
#nav .menus_items {
  position: absolute;
  width: fit-content;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  height: 60px;
}

#nav .menus_items .menus_item:hover .menus_item_child {
  display: block;
  transform: translateX(-50%);
  right: auto;
  left: auto !important;
  padding: 6px 4px;
  box-sizing: content-box;
  line-height: 35px;
}
#nav .menus_items .menus_item:hover {
  padding: 0 5px 27px 5px !important;
  margin-bottom: -14.5px !important;
}

#nav .menus_items .menus_item .menus_item_child {
  top: 44px;
}

@media screen and (min-width: 768px) {
  .page .menus_item:hover > a.site-page {
    color: var(--anzhiyu-white) !important;
    background: var(--anzhiyu-main);
    transition: 0.3s;
    box-shadow: var(--anzhiyu-shadow-main);
  }
}

.nav-fixed #nav {
  transform: translateY(58px) !important;
}
#nav {
  padding: 0 calc((100% - 1420px) / 2);
  backdrop-filter: saturate(180%) blur(20px);
}

#nav a {
  border-radius: 8px;
  color: var(--font-color);
}
.page #nav a:hover {
  color: var(--anzhiyu-white) !important;
  background: var(--anzhiyu-main);
  transition: 0.3s;
  box-shadow: var(--anzhiyu-shadow-main);
}

#menus > div.menus_items > div > a {
  letter-spacing: 0.3rem;
  font-weight: 700;
  padding: 0em 0.3em 0em 0.5em;
  height: 35px;
  line-height: 35px;
}
#nav .menus_items .menus_item {
  padding: 0 5px;
  display: flex;
  flex-direction: column;
  margin: auto;
  align-items: center;
}

#nav div#toggle-menu {
  padding: 2px 0 4px 6px;
}

#nav-totop .totopbtn i {
  position: absolute;
  display: flex;
  opacity: 0;
}
#page-name::before {
  font-size: 18px;
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 8px;
  color: white !important;
  top: 0;
  left: 0;
  content: "回到顶部";
  background-color: var(--anzhiyu-theme);
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -ms-transition: all 0.3s;
  -o-transition: all 0.3s;
  opacity: 0;
  box-shadow: 0 0 3px var(--anzhiyu-theme);
  line-height: 45px; /*如果垂直位置不居中可以微调此值，也可以删了*/
}
#page-name:hover:before {
  opacity: 1;
}
#name-container {
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -ms-transition: all 0.3s;
  -o-transition: all 0.3s;
}
#name-container:hover {
  transform: translateX(-50%) scale(1.03);
}
#page-name {
  position: relative;
  padding: 10px 30px;
  -webkit-animation-timing-function: ease-out;
}

center#name-container {
  position: absolute;
  width: 100%;
  left: 50%;
  transform: translateX(-50%);
  font-family: "ZhuZiAYuanJWD";
}
.nav-fixed.nav-visible #name-container {
  transition: 0.3s;
  transform: translate(-50%, 60px);
}
.nav-fixed.nav-visible #menus .menus_items {
  transform: translate(-50%);
  transition: 0.3s;
  line-height: 60px;
}
.nav-fixed #menus .menus_items {
  transform: translate(-50%, -60px);
  transition: 0.3s;
}
.nav-fixed #name-container {
  top: 15%;
  transition: 0.3s;
}
#name-container {
  bottom: 60px;
}

.mask-name-container {
  max-width: 1200px;
  width: 50%;
  height: 100%;
  position: absolute;
  overflow: hidden;
  left: 50%;
  transform: translateX(-50%);
}

@media screen and (max-width: 992px) {
  .mask-name-container {
    width: 65%;
  }
}

@media screen and (max-width: 768px) {
  .mask-name-container {
    display: none;
  }
}
#sidebar #sidebar-menus .menus_items .site-page:hover {
  color: var(--anzhiyu-white);
  border-radius: var(--anzhiyu-border-radius);
}
#nav .menus_items .menus_item > a > i:last-child {
  display: none;
}
#nav #search-button {
  font-size: 1.3em;
}

@media screen and (min-width: 900px) {
  #nav .back-home-button:hover {
    box-shadow: var(--anzhiyu-shadow-main);
  }
}

.back-home-button:hover {
  background: var(--anzhiyu-main);
  color: var(--anzhiyu-white) !important;
}
.back-home-button {
  display: flex;
  width: 35px;
  height: 35px;
  padding: 0 !important;
  align-items: center;
  justify-content: center;
  margin-right: 4px;
  transition: 0.3s;
  border-radius: 8px;
}

.back-home-button:hover .back-menu-list-groups {
  display: flex;
  opacity: 1;
  transition: 0.3s;
  top: 55px;
  pointer-events: auto;
  left: 0;
}
.back-home-button .back-menu-list-groups {
  position: absolute;
  top: 65px;
  left: 0;
  background: var(--anzhiyu-card-bg);
  border-radius: 12px;
  border: var(--style-border);
  flex-direction: column;
  font-size: 12px;
  color: var(--anzhiyu-secondtext);
  box-shadow: var(--anzhiyu-shadow-border);
  transition: 0s;
  opacity: 0;
  pointer-events: none;
}

.back-home-button .back-menu-list-group {
  display: flex;
  flex-direction: column;
}
.back-home-button .back-menu-list-group .back-menu-list-title {
  margin: 8px 0 0 16px;
  transition: 0.3s;
}
.back-home-button .back-menu-list {
  display: flex;
  flex-direction: column;
}
.back-home-button .back-menu-list::before {
  position: absolute;
  top: -22px;
  left: 0px;
  width: 100%;
  height: 25px;
  content: "";
}

.back-home-button .back-menu-list-group:hover .back-menu-list-title {
  color: var(--anzhiyu-main);
}
.back-home-button .back-menu-list-groups:hover {
  border: var(--style-border-hover);
}
.back-home-button .back-menu-list .back-menu-item {
  display: flex;
  align-items: center;
  margin: 4px 8px;
  padding: 4px 8px !important;
  transition: 0.3s;
  border-radius: 8px;
}
.back-home-button .back-menu-list .back-menu-item .back-menu-item-text {
  font-size: var(--global-font-size);
  margin-left: 0.5rem;
  color: var(--anzhiyu-fontcolor);
  white-space: nowrap;
}
#nav #blog_name {
  flex-wrap: nowrap;
  height: 60px;
  display: flex;
  align-items: center;
  /* z-index: 102; */
  transition: 0.3s;
}
.back-home-button .back-menu-list .back-menu-item .back-menu-item-icon {
  width: 24px;
  height: 24px;
  border-radius: 24px;
  background: var(--anzhiyu-secondbg);
}
#page-header #nav .back-home-button {
  cursor: pointer;
  position: relative;
}

@media screen and (min-width: 1300px) {
  #nav a:hover {
    transform: scale(1.03);
  }
}
.back-home-button .back-menu-list .back-menu-item:hover .back-menu-item-text {
  color: var(--anzhiyu-white);
}
.back-menu-item-icon.loading img {
  width: 25px;
}

#page-header #nav #menus .nav-button.long a.totopbtn,
#page-header #nav #menus .nav-button.long,
#page-header #nav #menus .nav-button.long a.totopbtn span {
  width: 70px;
}
#page-header #nav #menus .nav-button.long a.totopbtn span {
  border-radius: 35px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 0.3s;
  white-space: nowrap;
}

#page-header #nav #menus .nav-button.long a.totopbtn:hover {
  border-radius: 35px;
  height: 30px;
}

#nav #search-button {
  padding-left: 0;
}
#page-header #nav .nav-button {
  margin-left: 0.5rem;
  padding: 0;
}
#page-header:not(.is-top-bar) #nav-totop a {
  display: none;
}
#search-button a.site-page.social-icon.search span {
  display: none;
}

颜色 css

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/* 颜色 */
:root {
  --anzhiyu-theme-op: #4259ef23;
  --anzhiyu-white: #fff;
  --anzhiyu-black: #000;
  --anzhiyu-none: rgba(0, 0, 0, 0);
  --anzhiyu-gray: #999999;
  --anzhiyu-yellow: #ffc93e;
  --anzhiyu-border-radius: 8px;
  --anzhiyu-main: var(--anzhiyu-theme);
  --anzhiyu-main-op: var(--anzhiyu-theme-op);
  --anzhiyu-shadow-theme: 0 8px 12px -3px var(--anzhiyu-theme-op);
  --anzhiyu-shadow-main: 0 8px 12px -3px var(--anzhiyu-main-op);
  --anzhiyu-shadow-blue: 0 8px 12px -3px rgba(40, 109, 234, 0.2);
  --anzhiyu-shadow-white: 0 8px 12px -3px rgba(255, 255, 255, 0.2);
  --anzhiyu-shadow-black: 0 0 12px 4px rgba(0, 0, 0, 0.05);
  --anzhiyu-shadow-yellow: 0px 38px 77px -26px rgba(255, 201, 62, 0.12);
  --anzhiyu-shadow-red: 0 8px 12px -3px #ee7d7936;
  --anzhiyu-shadow-green: 0 8px 12px -3px #87ee7936;
  --anzhiyu-shadow-border: 0 8px 16px -4px #2c2d300c;
  --anzhiyu-logo-color: linear-gradient(215deg, #4584ff 30%, #ff7676 70%);
  --style-border: 1px solid var(--anzhiyu-card-border);
  --anzhiyu-blue-main: #3b70fc;
  --style-border-hover: 1px solid var(--anzhiyu-main);
  --style-border-dashed: 1px dashed var(--anzhiyu-theme-op);
  --style-border-avatar: 4px solid var(--anzhiyu-background);
  --style-border-always: 1px solid var(--anzhiyu-card-border);
  --anzhiyu-white-acrylic1: #fefeff !important;
  --anzhiyu-white-acrylic2: #fcfdff !important;
  --anzhiyu-black-acrylic2: #08080a !important;
  --anzhiyu-black-acrylic1: #0b0b0e !important;
}

[data-theme="light"] {
  --anzhiyu-theme: #3b70fc;
  --anzhiyu-theme-op: #4259ef23;
  --anzhiyu-blue: #3b70fc;
  --anzhiyu-red: #d8213c;
  --anzhiyu-pink: #ff7c7c;
  --anzhiyu-green: #57bd6a;
  --anzhiyu-fontcolor: #363636;
  --anzhiyu-background: #f7f9fe;
  --anzhiyu-reverse: #000;
  --anzhiyu-maskbg: rgba(255, 255, 255, 0.6);
  --anzhiyu-maskbgdeep: rgba(255, 255, 255, 0.85);
  --anzhiyu-hovertext: var(--anzhiyu-theme);
  --anzhiyu-ahoverbg: #f7f7fa;
  --anzhiyu-lighttext: var(--anzhiyu-main);
  --anzhiyu-secondtext: rgba(60, 60, 67, 0.6);
  --anzhiyu-scrollbar: rgba(60, 60, 67, 0.4);
  --anzhiyu-card-btn-bg: #edf0f7;
  --anzhiyu-post-blockquote-bg: #fafcff;
  --anzhiyu-post-tabs-bg: #f2f5f8;
  --anzhiyu-secondbg: #edf0f7;
  --anzhiyu-shadow-nav: 0 5px 12px -5px rgba(102, 68, 68, 0.05);
  --anzhiyu-card-bg: #fff;
  --anzhiyu-shadow-lightblack: 0 5px 12px -5px rgba(102, 68, 68, 0);
  --anzhiyu-shadow-light2black: 0 5px 12px -5px rgba(102, 68, 68, 0);
  --anzhiyu-card-border: #c0c6d8;
}

[data-theme="dark"] {
  --anzhiyu-theme: #0084ff;
  --anzhiyu-theme-op: #0084ff23;
  --anzhiyu-blue: #0084ff;
  --anzhiyu-red: #ff3842;
  --anzhiyu-pink: #ff7c7c;
  --anzhiyu-green: #57bd6a;
  --anzhiyu-fontcolor: #f7f7fa;
  --anzhiyu-background: #18171d;
  --anzhiyu-reverse: #fff;
  --anzhiyu-maskbg: rgba(0, 0, 0, 0.6);
  --anzhiyu-maskbgdeep: rgba(0, 0, 0, 0.85);
  --anzhiyu-hovertext: #0a84ff;
  --anzhiyu-ahoverbg: #fff;
  --anzhiyu-lighttext: #f2b94b;
  --anzhiyu-secondtext: #a1a2b8;
  --anzhiyu-scrollbar: rgba(200, 200, 223, 0.4);
  --anzhiyu-card-btn-bg: #30343f;
  --anzhiyu-post-blockquote-bg: #000;
  --anzhiyu-post-tabs-bg: #121212;
  --anzhiyu-secondbg: #30343f;
  --anzhiyu-shadow-nav: 0 5px 20px 0px rgba(28, 28, 28, 0.4);
  --anzhiyu-card-bg: #1d1b26;
  --anzhiyu-shadow-lightblack: 0 5px 12px -5px rgba(102, 68, 68, 0);
  --anzhiyu-shadow-light2black: 0 5px 12px -5px rgba(102, 68, 68, 0);
  --anzhiyu-card-border: #42444a;
}

自定义 js

添加自定义 js，不会的同学参考Hexo 博客添加自定义 css 和 js 文件，开启 pjax，且引入的时候在标签上添加data-pjax属性。

main.js

为了处理顶栏一闪而过的 bug 修改本地themes/butterfly/source/js/main.js，注意有引用线上版本的话一定要使用本地版本改完再自行上传线上版本

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  window.scrollCollect = () => {
        return btf.throttle(function (e) {
          const currentTop = window.scrollY || document.documentElement.scrollTop
          const isDown = scrollDirection(currentTop)
          if (currentTop > 56) {
+           $header.classList.add('is-top-bar')
            if (isDown) {
              if ($header.classList.contains('nav-visible')) $header.classList.remove('nav-visible')
              if (isChatBtnShow && isChatShow === true) {
                chatBtnHide()
                isChatShow = false
              }
            } else {
              if (!$header.classList.contains('nav-visible')) $header.classList.add('nav-visible')
              if (isChatBtnHide && isChatShow === false) {
                chatBtnShow()
                isChatShow = true
              }
            }
            $header.classList.add('nav-fixed')
            if (window.getComputedStyle($rightside).getPropertyValue('opacity') === '0') {
              $rightside.style.cssText = 'opacity: 0.8; transform: translateX(-58px)'
            }
          } else {
            if (currentTop === 0) {
-             $header.classList.remove('nav-fixed', 'nav-visible')
+             $header.classList.remove('is-top-bar')
            }
            $rightside.style.cssText = "opacity: ''; transform: ''"
          }

          if (document.body.scrollHeight <= innerHeight) {
            $rightside.style.cssText = 'opacity: 0.8; transform: translateX(-58px)'
          }
        }, 200)()
      }

header/index.pug

修改themes/butterfly/layout/includes/header/index.pug

其中nav-visible可以控制默认显示的是站点标题还是导航栏菜单。

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  if top_img !== false
    - var imgSource = top_img && top_img.indexOf('/') !== -1 ? `background-image: url('${url_for(top_img)}')` : `background: ${top_img}`
    - var bg_img = top_img ? imgSource : ''
    - var site_title = page.title || page.tag || page.category || config.title
-   - var isHomeClass = is_home() ? 'full_page' : 'not-home-page'
+   - var isHomeClass = is_home() ? 'full_page nav-fixed nav-visible' : 'not-home-page'
    - is_post() ? isHomeClass = 'post-bg' : isHomeClass
  else
    - var isHomeClass = 'not-top-img'

替换themes/butterfly/layout/includes/header/nav.pug, 改动太多了，懒的对比了 🤡，直接替换好啦

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- const { darkmode } = theme
nav#nav
  span#blog_name
    .back-home-button(tabindex='-1')
      i.back-home-button-icon.fas.fa-grip-vertical
      .back-menu-list-groups
        .back-menu-list-group
          .back-menu-list-title 网页
          .back-menu-list
            a.back-menu-item(href='/', title='前往博客主页', target='_blank', one-link-mark='yes')
              img.back-menu-item-icon(src='https://img02.anheyu.com/adminuploads/1/2022/09/05/6315ec9737ac4.png')
              span.back-menu-item-text 博客
            a.back-menu-item(href='https://www.cloud.anheyu.com/', rel='external nofollow', title='前往云盘主页', target='_blank', one-link-mark='yes')
              img.back-menu-item-icon(src='https://npm.elemecdn.com/anzhiyu-blog-static@1.0.4/img/avatar.jpg')
              span.back-menu-item-text 云盘主页
            a.back-menu-item(href='https://cloud.anheyu.com/', rel='external nofollow', title='前往安知鱼云盘', target='_blank', one-link-mark='yes')
              img.back-menu-item-icon(src='https://img02.anheyu.com/adminuploads/1/2022/04/27/6268e7d9de532.png')
              span.back-menu-item-text 安知鱼云盘

    a#site-name(href=url_for('/'))
      .title #[=config.title]
      i.fa-solid.fa-house

  div.mask-name-container
    center(id="name-container")
      a(id="page-name" href="javascript:rmf.scrollToTop()") PAGE_NAME

  #menus
    if (theme.algolia_search.enable || theme.local_search.enable)
      div.nav-button#search-button
        a.site-page.social-icon.search
          i.fas.fa-search.fa-fw
          span=' '+_p('search.title')

    if darkmode.enable && darkmode.button
      div.nav-button#darkmode_navswitch
        a.darkmode_switchbutton(type="button" title=_p('rightside.night_mode_title') onclick="rmf.switchDarkMode()")
          i.fas.fa-adjust

    div.nav-button#nav-totop
      a.totopbtn
        i.fas.fa-arrow-up
        span#percent(onclick="btf.scrollToDest(0,500)") 0


    !=partial('includes/header/menu_item', {}, {cache: true})

    #toggle-menu
      a.site-page
        i.fas.fa-bars.fa-fw