docs(pages): 删除 404 页面文档文件

- 移除 docs/404.md 文件及其所有内容
- 删除 404 页面的 Vue 组件实现代码
- 清理相关样式和脚本配置

docs/404.md

@@ -1,171 +0,0 @@
----
-layout: page
----
-
-<script setup lang="ts">
-import { ref, onMounted, onUnmounted, computed } from 'vue'
-import { useData, useRouter, withBase } from 'vitepress'
-
-const { lang } = useData()
-const router = useRouter()
-
-/** 是否中文 */
-const isZh = computed(() => lang.value === 'zh-CN')
-
-/** 倒计时 */
-const countdown = ref(5)
-let timer: number | null = null
-
-const goHome = () => {
-  if (timer) clearInterval(timer)
-  router.go(withBase(isZh.value ? '/zh-CN/' : '/en/'))
-}
-
-onMounted(() => {
-  timer = window.setInterval(() => {
-    countdown.value--
-    if (countdown.value <= 0) {
-      goHome()
-    }
-  }, 1000)
-})
-
-onUnmounted(() => {
-  if (timer) clearInterval(timer)
-})
-</script>
-
-<style scoped>
-.not-found-container {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-  min-height: 60vh;
-  text-align: center;
-  padding: 20px;
-}
-
-.error-code {
-  font-size: 120px;
-  font-weight: bold;
-  background: linear-gradient(120deg, #3451b2 0%, #6366f1 100%);
-  -webkit-background-clip: text;
-  -webkit-text-fill-color: transparent;
-  background-clip: text;
-  margin: 0;
-  line-height: 1;
-}
-
-.error-title {
-  font-size: 32px;
-  margin: 20px 0 10px;
-  color: var(--vp-c-text-1);
-}
-
-.error-message {
-  font-size: 18px;
-  color: var(--vp-c-text-2);
-  margin-bottom: 10px;
-}
-
-.countdown-text {
-  font-size: 16px;
-  color: var(--vp-c-text-3);
-  margin: 20px 0;
-}
-
-.countdown-number {
-  color: #3451b2;
-  font-weight: bold;
-  font-size: 20px;
-}
-
-.action-buttons {
-  display: flex;
-  gap: 16px;
-  margin-top: 30px;
-}
-
-.btn {
-  padding: 12px 24px;
-  border-radius: 8px;
-  text-decoration: none;
-  font-weight: 500;
-  transition: all 0.3s;
-  cursor: pointer;
-  border: none;
-  font-size: 16px;
-}
-
-.btn-primary {
-  background: #3451b2;
-  color: white;
-}
-
-.btn-primary:hover {
-  background: #2841a0;
-  transform: translateY(-2px);
-}
-
-.suggestions {
-  margin-top: 24px;
-}
-
-.suggestions ul {
-  list-style: none;
-  padding: 0;
-}
-
-.suggestions li {
-  margin: 6px 0;
-}
-</style>
-
-<div class="not-found-container">
-  <h1 class="error-code">404</h1>
-
-  <h2 class="error-title">
-    {{ isZh ? '页面未找到' : 'Page Not Found' }}
-  </h2>
-
-  <p class="error-message">
-    <template v-if="isZh">
-      您访问的页面不存在。
-    </template>
-    <template v-else>
-      The page you are looking for does not exist.
-    </template>
-  </p>
-
-  <p class="countdown-text">
-    <template v-if="isZh">
-      <span class="countdown-number">{{ countdown }}</span> 秒后自动跳转
-    </template>
-    <template v-else>
-      Auto redirecting in <span class="countdown-number">{{ countdown }}</span> seconds
-    </template>
-  </p>
-
-  <div class="suggestions">
-    <h3>📚 {{ isZh ? '您可能想访问：' : 'You might be looking for:' }}</h3>
-    <ul v-if="isZh">
-      <li>→ <a :href="withBase('/zh-CN/getting-started/installation')">安装配置</a></li>
-      <li>→ <a :href="withBase('/zh-CN/getting-started/quick-start')">快速开始</a></li>
-      <li>→ <a :href="withBase('/zh-CN/core/overview')">Core 核心框架</a></li>
-      <li>→ <a :href="withBase('/zh-CN/tutorials/basic-tutorial')">基础教程</a></li>
-    </ul>
-    <ul v-else>
-      <li>→ <a :href="withBase('/en/getting-started/installation')">Installation</a></li>
-      <li>→ <a :href="withBase('/en/getting-started/quick-start')">Quick Start</a></li>
-      <li>→ <a :href="withBase('/en/core/overview')">Core Overview</a></li>
-      <li>→ <a :href="withBase('/en/tutorials/basic-tutorial')">Basic Tutorial</a></li>
-    </ul>
-  </div>
-
-  <div class="action-buttons">
-    <button class="btn btn-primary" @click="goHome">
-      {{ isZh ? '返回首页' : 'Go to Homepage' }}
-    </button>
-  </div>
-</div>