Refactor: 首页聚合改造，AI/Tech 统一时间排序展示

- 首页文章列表混合 site.posts + site.ai 按时间倒序
- 每篇卡片标题前加栏目 badge（AI / Tech）
- 侧边栏 Archives 改名为 Tech，AI 图标换为 fa-robot
- 移除右侧「最近更新」面板（首页已是全站聚合视图）
- 新增 _data/locales/zh-CN.yml 覆盖 tab 显示名

Author: puppylpg

_data/locales/zh-CN.yml

@@ -0,0 +1,2 @@
+tabs:
+  tech: Tech

_includes/update-list.html

@@ -0,0 +1 @@
+<!-- Intentionally empty: recent updates are shown inline on the homepage -->

_layouts/home.html

@@ -0,0 +1,122 @@
+---
+layout: default
+refactor: true
+---
+
+{% include lang.html %}
+
+<!-- Build merged list: site.posts + site.ai, sorted by date desc -->
+{% assign all_items = '' | split: '' %}
+
+{% for post in site.posts %}
+  {% unless post.hidden %}
+    {% capture elem %}{{ post.date | date: "%Y%m%d%H%M%S" }}::posts::{{ forloop.index0 }}{% endcapture %}
+    {% assign all_items = all_items | push: elem %}
+  {% endunless %}
+{% endfor %}
+
+{% for doc in site.ai %}
+  {% capture elem %}{{ doc.date | date: "%Y%m%d%H%M%S" }}::ai::{{ forloop.index0 }}{% endcapture %}
+  {% assign all_items = all_items | push: elem %}
+{% endfor %}
+
+{% assign all_items = all_items | sort | reverse %}
+
+<!-- Manual pagination using paginator's page info -->
+{% assign per_page = paginator.per_page %}
+{% assign page_num = paginator.page %}
+{% assign skip = page_num | minus: 1 | times: per_page %}
+
+<div id="post-list" class="flex-grow-1 px-xl-1">
+  {% for item in all_items limit: per_page offset: skip %}
+    {% assign parts = item | split: '::' %}
+    {% assign col = parts[1] %}
+    {% assign index = parts[2] | plus: 0 %}
+
+    {% if col == 'posts' %}
+      {% assign post = site.posts[index] %}
+      {% assign badge_class = 'post-badge--tech' %}
+      {% assign badge_text = 'Tech' %}
+    {% else %}
+      {% assign post = site.ai[index] %}
+      {% assign badge_class = 'post-badge--ai' %}
+      {% assign badge_text = 'AI' %}
+    {% endif %}
+
+    <article class="card-wrapper card">
+      <a href="{{ post.url | relative_url }}" class="post-preview row g-0 flex-md-row-reverse">
+        {% assign card_body_col = '12' %}
+
+        {% if post.image %}
+          {% assign src = post.image.path | default: post.image %}
+          {% unless src contains '//' %}
+            {% assign src = post.img_path | append: '/' | append: src | replace: '//', '/' %}
+          {% endunless %}
+
+          {% assign alt = post.image.alt | xml_escape | default: 'Preview Image' %}
+
+          {% assign lqip = null %}
+
+          {% if post.image.lqip %}
+            {% capture lqip %}lqip="{{ post.image.lqip }}"{% endcapture %}
+          {% endif %}
+
+          <div class="col-md-5">
+            <img src="{{ src }}" alt="{{ alt }}" {{ lqip }}>
+          </div>
+
+          {% assign card_body_col = '7' %}
+        {% endif %}
+
+        <div class="col-md-{{ card_body_col }}">
+          <div class="card-body d-flex flex-column">
+            <h1 class="card-title my-2 mt-md-0">
+              <span class="post-badge {{ badge_class }}">{{ badge_text }}</span>
+              {{ post.title }}
+            </h1>
+
+            <div class="card-text content mt-0 mb-3">
+              <p>
+                {% include no-linenos.html content=post.content %}
+                {{ content | markdownify | strip_html | truncate: 200 | escape }}
+              </p>
+            </div>
+
+            <div class="post-meta flex-grow-1 d-flex align-items-end">
+              <div class="me-auto">
+                <!-- posted date -->
+                <i class="far fa-calendar fa-fw me-1"></i>
+                {% include datetime.html date=post.date lang=lang %}
+
+                <!-- categories -->
+                {% if post.categories.size > 0 %}
+                  <i class="far fa-folder-open fa-fw me-1"></i>
+                  <span class="categories">
+                    {% for category in post.categories %}
+                      {{ category }}
+                      {%- unless forloop.last -%},{%- endunless -%}
+                    {% endfor %}
+                  </span>
+                {% endif %}
+              </div>
+
+              {% if post.pin %}
+                <div class="pin ms-1">
+                  <i class="fas fa-thumbtack fa-fw"></i>
+                  <span>{{ site.data.locales[lang].post.pin_prompt }}</span>
+                </div>
+              {% endif %}
+            </div>
+            <!-- .post-meta -->
+          </div>
+          <!-- .card-body -->
+        </div>
+      </a>
+    </article>
+  {% endfor %}
+</div>
+<!-- #post-list -->
+
+{% if paginator.total_pages > 1 %}
+  {% include post-paginator.html %}
+{% endif %}

_tabs/ai.md

@@ -1,6 +1,6 @@
 ---
 layout: custom-collection
-title: ai
-icon: fas fa-charging-station
+title: AI
+icon: fas fa-robot
 order: 3.04
 ---

_tabs/archives.md _tabs/tech.md_tabs/archives.md renamed to _tabs/tech.md

@@ -1,5 +1,5 @@
 ---
 layout: archives
-icon: fas fa-archive
+icon: fas fa-code
 order: 3
 ---

assets/css/jekyll-theme-chirpy.scss

@@ -0,0 +1,27 @@
+---
+---
+
+@import 'main';
+
+/* append your custom style below */
+
+.post-badge {
+  display: inline-block;
+  font-size: 0.7rem;
+  font-weight: 600;
+  padding: 0.1em 0.5em;
+  border-radius: 0.75em;
+  margin-right: 0.5rem;
+  vertical-align: middle;
+  letter-spacing: 0.03em;
+}
+
+.post-badge--ai {
+  color: var(--link-color);
+  border: 1px solid var(--link-color);
+}
+
+.post-badge--tech {
+  color: var(--text-muted-color);
+  border: 1px solid var(--text-muted-color);
+}