refactor(docs): migrate from docsify to vitepress

- Move CSS styles from theme to public directory
- Update documentation structure and build commands
- Add new VitePress configuration and theme setup

docs/.vitepress/theme/index.js

@@ -4,7 +4,6 @@ import 'viewerjs/dist/viewer.css'
 import TypeIt from 'typeit'
 import { onMounted, watch, nextTick } from 'vue'
 import { useRoute, useData } from 'vitepress'
-import './style.css'
 
 export default {
   extends: DefaultTheme,

docs/public/style.css

@@ -0,0 +1,78 @@
+:root {
+  /* 调整侧边栏分组之间的间距 */
+  --vp-sidebar-nav-section-gap: 8px;
+}
+
+/* 减少一级标题（如"前端开发"）底部的间距 */
+.VPSidebarItem.level-0 {
+  padding-bottom: 4px !important;
+}
+
+/* 减少一级标题文字与下方子菜单的间距 */
+.VPSidebarItem.level-0 > .item {
+  padding-bottom: 2px !important;
+}
+
+/* 调整子菜单项之间的间距 - 针对所有层级 */
+.VPSidebarItem.level-1 .item,
+.VPSidebarItem.level-2 .item,
+.VPSidebarItem.level-3 .item,
+.VPSidebarItem.level-4 .item {
+  padding-top: 2px !important;
+  padding-bottom: 2px !important;
+  min-height: 24px !important; /* 强制减小最小高度 */
+}
+
+/* 针对可能存在的特定类名进行覆盖，确保紧凑 */
+.VPSidebarGroup {
+  padding-top: 6px !important;
+  padding-bottom: 6px !important;
+}
+
+/* 进一步压缩分组标题与第一项之间的间距 */
+.VPSidebarItem.level-0 + .VPSidebarItem.level-1 {
+  margin-top: -2px !important;
+}
+
+/* 压缩分组标题本身的行高 */
+.VPSidebarItem.level-0 .text {
+  line-height: 1.3 !important;
+}
+
+/* 压缩子项的行高 */
+.VPSidebarItem.level-1 .text,
+.VPSidebarItem.level-2 .text,
+.VPSidebarItem.level-3 .text {
+  line-height: 1.4 !important;
+  padding: 0 !important; /* 移除文字本身的内边距 */
+}
+
+/* 强制链接本身没有额外的边距 */
+.VPSidebarItem .VPLink {
+  padding-top: 2px !important;
+  padding-bottom: 2px !important;
+  min-height: auto !important;
+}
+
+/* 图片高度限制策略：根据长宽比调整最大高度 */
+/* 越高的图片（长宽比越大），限制的高度越小，避免占用过多纵向空间 */
+.vp-doc img.img-tall {
+  max-height: 450px !important;
+  width: auto !important;
+}
+
+.vp-doc img.img-very-tall {
+  max-height: 350px !important;
+  width: auto !important;
+}
+
+.vp-doc img.img-ultra-tall {
+  max-height: 250px !important;
+  width: auto !important;
+}
+
+/* Fix tagline wrapping issues */
+.VPHomeHero .tagline {
+  white-space: nowrap;
+  max-width: none !important;
+}