v1.12 — 评论区重构

- 自定义评论列表，支持嵌套回复显示
- 回复显示 @作者名 + 左侧虚线缩进
- 评论时间中文化 Y-m-d H:i:s，无 at 后缀
- 清理 CSS 冲突和残留规则
- 回复标题/按钮样式优化

comments.php

@@ -9,16 +9,21 @@ if (post_password_required()) return;
 
 
     <?php if (have_comments()) : ?>
+    <h3 class="comment-reply-title">笺下留言</h3>
         <ol class="comment-list">
             <?php
             $comments = get_comments(array('post_id' => get_the_ID(), 'status' => 'approve', 'order' => 'ASC'));
             foreach ($comments as $c) :
-                $c_user = get_user_by('email', $c->comment_author_email);
+                $is_reply = $c->comment_parent > 0;
+                $parent = $is_reply ? get_comment($c->comment_parent) : null;
             ?>
-                <li class="comment-item">
+                <li class="comment-item<?php echo $is_reply ? ' comment-item--reply' : ''; ?>">
                     <div class="comment-item__meta">
-                        <?php echo get_avatar($c, 22, '', '', array('class' => 'comment-avatar')); ?>
+                        <?php echo get_avatar($c, 18, '', '', array('class' => 'comment-avatar')); ?>
                         <span class="comment-item__author"><?php echo esc_html($c->comment_author); ?></span>
+                        <?php if ($parent) : ?>
+                            <span class="comment-item__replyto">回复 @<?php echo esc_html($parent->comment_author); ?></span>
+                        <?php endif; ?>
                         <span class="comment-item__time"><?php echo get_comment_date('Y-m-d H:i:s', $c); ?></span>
                     </div>
                     <div class="comment-item__text"><?php echo esc_html($c->comment_content); ?></div>
@@ -31,7 +36,7 @@ if (post_password_required()) return;
     <?php if (is_user_logged_in()) : ?>
         <?php
         comment_form(array(
-            'title_reply'          => '笺下留言',
+            'title_reply'          => '',
             'comment_notes_before' => '',
             'comment_notes_after'  => '',
             'logged_in_as'         => '',