前言

Butterfly自带的404页面比较简陋，就是一张图片加个”404”大字。这里用Glitch（故障风）效果重新设计，纯CSS动画实现，不依赖任何图片资源。

美化之前

需要修改网站的源文件、添加样式，需要一点基础，可以参考：

🔗 站外链接，请注意甄别
Hexo博客添加自定义css和js文件
Leonus
🏠 站内链接，放心访问
Butterfly自用全局变量
June's Blog
前提

确保_config.butterfly.yml中error_404.enable设置为true

效果

🏠 站内链接，放心访问
页面没有找到
June's Blog

修改方案

1. 修改404.pug

修改[blogRoot]/themes/butterfly/layout/includes/404.pug：

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- var top_img_404 = theme.error_404.background || theme.default_top_img

#body-wrap.error404
  include ./header/index.pug

  .error-decor
    .decor-circle.d1
    .decor-circle.d2
    .decor-circle.d3
    .decor-cross.x1 +
    .decor-cross.x2 +
    .decor-cross.x3 +
    .decor-dot.dot1
    .decor-dot.dot2
    .decor-dot.dot3
    .decor-dot.dot4
    .decor-dot.dot5

  #error-wrap
    .error-content
      .error-illustration
        .glitch-wrap
          .glitch(data-text="404") 404
        p.lost-text 页面去哪了？
      .error-divider
      .error-info
        p.error_subtitle= theme.error_404.subtitle || '抱歉，你访问的页面不存在'
        p.error_desc 可能是链接过期了，或者地址输入有误
        .error_buttons
          a.error_btn(href="/")
            i.fas.fa-home
            span  回到首页
          a.error_btn(href="javascript:window.history.back();")
            i.fas.fa-undo
            span  返回上页
          a.error_btn(href="javascript:toRandomPost()")
            i.fas.fa-random
            span  随便看看
说明

toRandomPost()是随机跳转文章的函数，如果你没有定义可以去掉最后一个按钮

2. 修改404.styl

修改[blogRoot]/themes/butterfly/source/css/_page/404.styl，替换全部内容：

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if hexo-config('error_404.enable')
  .error404
    // 背景装饰
    &::before
      content: ''
      position: fixed
      top: 0
      left: 0
      width: 100%
      height: 100%
      background: radial-gradient(ellipse at 15% 30%, rgba(230,130,130,0.12) 0%, transparent 45%), radial-gradient(ellipse at 85% 70%, rgba(230,130,130,0.1) 0%, transparent 40%), radial-gradient(ellipse at 50% 90%, rgba(230,160,130,0.08) 0%, transparent 35%)
      pointer-events: none
      z-index: 0

      [data-theme="dark"] &
        background: radial-gradient(ellipse at 15% 30%, rgba(242,185,75,0.06) 0%, transparent 45%), radial-gradient(ellipse at 85% 70%, rgba(242,185,75,0.05) 0%, transparent 40%), radial-gradient(ellipse at 50% 90%, rgba(242,185,75,0.04) 0%, transparent 35%)

    // 浮动几何装饰
    &::after
      content: ''
      position: fixed
      top: 10%
      right: 8%
      width: 250px
      height: 250px
      border: 2px dashed rgba(230,130,130,0.2)
      border-radius: 50%
      animation: spin404 20s linear infinite
      pointer-events: none
      z-index: 0

      [data-theme="dark"] &
        border-color: rgba(242,185,75,0.12)

    #error-wrap
      position: absolute
      top: 50%
      right: 0
      left: 0
      margin: 0 auto
      padding: 0 20px
      max-width: 800px
      transform: translateY(-50%)
      z-index: 1

      .error-content
        display: flex
        flex-direction: column
        align-items: center
        text-align: center

      .error-illustration
        margin-bottom: 30px

      .glitch-wrap
        position: relative
        display: inline-block

      .glitch
        font-size: 12em
        font-weight: 900
        line-height: 1
        color: var(--june-theme)
        position: relative
        letter-spacing: -5px
        animation: glitchShift 5s infinite

        +maxWidth768()
          font-size: 8em

        &::before
        &::after
          content: attr(data-text)
          position: absolute
          top: 0
          left: 0
          width: 100%
          height: 100%

        &::before
          color: var(--june-theme)
          opacity: 0.8
          animation: glitchTop 2s infinite
          clip-path: polygon(0 0, 100% 0, 100% 40%, 0 40%)
          -webkit-clip-path: polygon(0 0, 100% 0, 100% 40%, 0 40%)

        &::after
          color: var(--june-theme)
          opacity: 0.6
          animation: glitchBottom 1.8s infinite
          clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%)
          -webkit-clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%)

      .lost-text
        font-size: 1.2em
        color: #b2bec3
        margin-top: 5px
        letter-spacing: 8px
        text-transform: uppercase

      .error-divider
        width: 50px
        height: 3px
        background: var(--june-theme)
        border-radius: 2px
        margin: 25px 0
        opacity: 0.6

      .error-info
        .error_subtitle
          font-size: 1.3em
          color: var(--font-color)
          font-weight: 600
          margin: 0 0 8px

        .error_desc
          font-size: 0.95em
          color: #999
          margin: 0 0 30px

      .error_buttons
        display: flex
        gap: 12px
        flex-wrap: wrap
        justify-content: center

      .error_btn
        display: inline-flex
        align-items: center
        gap: 4px
        padding: 10px 22px
        border-radius: 8px
        font-size: 0.88em
        text-decoration: none
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1)
        font-weight: 500
        background: var(--june-card-bg, #fff)
        color: var(--font-color)
        border: 1px solid var(--june-card-border, #e8e8e8)

        &:hover
          transform: translateY(-2px)
          border-color: var(--june-theme)
          color: var(--june-theme)
          box-shadow: 0 4px 12px rgba(230,130,130,0.15)

    & + #rightside
      display: none

  // 装饰元素
  .error404 .error-decor
    position: fixed
    top: 0
    left: 0
    width: 100%
    height: 100%
    pointer-events: none
    z-index: 0
    overflow: hidden

    .decor-circle
      position: absolute
      border-radius: 50%
      border: 2px solid rgba(230,130,130,0.15)

      &.d1
        width: 350px
        height: 350px
        top: -100px
        left: -100px
        border-width: 3px
        border-color: rgba(230,130,130,0.12)
        animation: floatDecor 8s ease-in-out infinite

      &.d2
        width: 180px
        height: 180px
        bottom: 8%
        right: 3%
        border-style: dashed
        border-color: rgba(230,130,130,0.18)
        animation: spin404 18s linear infinite

      &.d3
        width: 100px
        height: 100px
        top: 25%
        left: 6%
        background: rgba(230,130,130,0.08)
        border: none
        animation: floatDecor 6s ease-in-out infinite reverse

    .decor-dot
      position: absolute
      border-radius: 50%
      background: rgba(230,130,130,0.35)
      animation: floatDot 4s ease-in-out infinite

      &.dot1
        top: 18%
        left: 12%
        width: 10px
        height: 10px
        animation-delay: 0s

      &.dot2
        top: 55%
        left: 88%
        animation-delay: 0.8s
        width: 7px
        height: 7px

      &.dot3
        top: 72%
        left: 15%
        animation-delay: 1.6s
        width: 12px
        height: 12px
        opacity: 0.6

      &.dot4
        top: 12%
        right: 18%
        animation-delay: 2.4s
        width: 8px
        height: 8px

      &.dot5
        top: 40%
        left: 92%
        animation-delay: 3.2s
        width: 6px
        height: 6px

    .decor-cross
      position: absolute
      font-size: 18px
      color: rgba(230,130,130,0.25)
      font-weight: 300
      animation: floatDot 5s ease-in-out infinite

      &.x1
        top: 30%
        right: 12%
        animation-delay: 0.5s
        font-size: 22px

      &.x2
        top: 65%
        left: 10%
        animation-delay: 1.5s
        font-size: 16px

      &.x3
        bottom: 20%
        right: 25%
        animation-delay: 2.5s
        font-size: 20px

  // 暗色模式适配
  [data-theme="dark"] .error404
    .error-decor .decor-circle
      border-color: rgba(242,185,75,0.12)

      &.d3
        background: rgba(242,185,75,0.06)

    .error-decor .decor-dot
      background: rgba(242,185,75,0.3)

    .error-decor .decor-cross
      color: rgba(242,185,75,0.2)

  // 动画
  @keyframes glitchTop
    0%, 100%
      transform: translate(0)
    20%
      transform: translate(-6px, -4px)
    40%
      transform: translate(6px, 4px)
    60%
      transform: translate(-4px, 2px)
    80%
      transform: translate(4px, -2px)

  @keyframes glitchBottom
    0%, 100%
      transform: translate(0)
    25%
      transform: translate(5px, 3px)
    50%
      transform: translate(-4px, -2px)
    75%
      transform: translate(4px, 3px)

  @keyframes glitchShift
    0%, 85%, 100%
      transform: translate(0)
    87%
      transform: translate(-4px, 2px)
    89%
      transform: translate(4px, -2px)
    91%
      transform: translate(-3px, -1px)
    93%
      transform: translate(3px, 1px)
    95%
      transform: translate(-2px, 3px)
    97%
      transform: translate(2px, -3px)

  @keyframes spin404
    from
      transform: rotate(0deg)
    to
      transform: rotate(360deg)

  @keyframes floatDecor
    0%, 100%
      transform: translateY(0)
    50%
      transform: translateY(-15px)

  @keyframes floatDot
    0%, 100%
      transform: translateY(0) scale(1)
      opacity: 0.3
    50%
      transform: translateY(-8px) scale(1.2)
      opacity: 0.7

3. 确认配置

确保_config.butterfly.yml中404页面已启用：

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error_404:
  enable: true
  subtitle: "页面没有找到"