/* ===== 个人博客 · 简约风格 ===== */
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: #1f2d3d;
  background: #f7f8fa;
  line-height: 1.7;
}
.container { max-width: 960px; margin: 0 auto; padding: 0 16px; }
a { color: #2563eb; text-decoration: none; }
a:hover { color: #1d4ed8; }

/* 顶部导航 */
.blog-header {
  background: #fff;
  border-bottom: 1px solid #eceef2;
  position: sticky;
  top: 0;
  z-index: 10;
}
.blog-head-inner {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.blog-brand { font-size: 17px; font-weight: 700; color: #1f2d3d; }
.blog-nav { display: flex; gap: 18px; font-size: 14px; }
.blog-nav a { color: #667085; }
.blog-nav a:hover { color: #2563eb; }

/* 列表 */
.blog-main { padding: 28px 0 40px; }
.blog-empty { color: #9aa3b2; padding: 30px 0; }
.blog-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.blog-card {
  background: #fff;
  border: 1px solid #eceef2;
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow .15s ease, transform .15s ease;
}
.blog-card:hover { box-shadow: 0 8px 24px rgba(31,45,61,.08); transform: translateY(-2px); }
.blog-card-cover { display: block; height: 160px; overflow: hidden; background: #eef1f6; }
.blog-card-cover img { width: 100%; height: 100%; object-fit: cover; }
.blog-card-body { padding: 14px 16px 18px; }
.blog-card-title { font-size: 17px; margin: 0 0 6px; line-height: 1.4; }
.blog-card-title a { color: #1f2d3d; }
.blog-card-title a:hover { color: #2563eb; }
.blog-card-meta { font-size: 12px; color: #9aa3b2; margin: 0 0 8px; }
.blog-card-sum { font-size: 14px; color: #5b6675; margin: 0 0 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.blog-card-more { font-size: 13px; }

/* 详情 */
.blog-post { background: #fff; border: 1px solid #eceef2; border-radius: 12px; padding: 28px 30px; }
.blog-post-title { font-size: 26px; margin: 0 0 8px; line-height: 1.35; }
.blog-post-meta { font-size: 13px; color: #9aa3b2; margin: 0 0 18px; }
.blog-post-cover { width: 100%; border-radius: 10px; margin-bottom: 18px; display: block; }
.blog-content { font-size: 16px; color: #2b3a4d; word-break: break-word; }
.blog-content img { max-width: 100%; height: auto; border-radius: 8px; }
.blog-content a { text-decoration: underline; }
.blog-content h1, .blog-content h2, .blog-content h3 { line-height: 1.4; margin: 22px 0 10px; }
.blog-content blockquote { margin: 14px 0; padding: 8px 16px; border-left: 4px solid #2563eb; background: #f1f5fd; color: #475569; border-radius: 0 8px 8px 0; }
.blog-content pre { background: #0f172a; color: #e2e8f0; padding: 14px 16px; border-radius: 8px; overflow: auto; }
.blog-content code { background: #eef1f6; padding: 2px 6px; border-radius: 4px; font-size: 14px; }
.blog-content pre code { background: transparent; padding: 0; }
.blog-back { margin-top: 24px; }

/* 底部 */
.blog-footer { border-top: 1px solid #eceef2; background: #fff; color: #9aa3b2; font-size: 13px; padding: 18px 0; text-align: center; }
.blog-footer a { color: #9aa3b2; }

/* 分类标签 */
.blog-cats { display: flex; gap: 10px; flex-wrap: wrap; margin: 0 0 20px; }
.blog-cats a { font-size: 13px; color: #667085; padding: 5px 14px; background: #fff; border: 1px solid #eceef2; border-radius: 999px; transition: all .15s ease; }
.blog-cats a.active, .blog-cats a:hover { background: #2563eb; color: #fff; border-color: #2563eb; }
.blog-card-cats, .blog-post-cats { display: flex; gap: 6px; flex-wrap: wrap; }
.blog-card-cats { margin: 10px 0 0; }
.blog-tag { font-size: 12px; color: #2563eb; background: #eef3ff; padding: 2px 10px; border-radius: 999px; }
.blog-tag:hover { background: #2563eb; color: #fff; }
.blog-post-cats { font-size: 13px; margin: 6px 0 16px; }

/* 评论区 */
.blog-comments { margin-top: 30px; border-top: 1px solid #eceef2; padding-top: 22px; }
.blog-comments-title { font-size: 18px; margin: 0 0 16px; }
.blog-comments-title .count { color: #9aa3b2; font-weight: 400; }
.comment-list { margin-bottom: 24px; }
.comment-item { padding: 13px 0; border-bottom: 1px dashed #eef1f6; }
.comment-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.comment-nick { font-weight: 600; color: #1f2d3d; font-size: 14px; }
.comment-time { font-size: 12px; color: #9aa3b2; }
.comment-body { margin: 0; font-size: 15px; color: #2b3a4d; white-space: pre-wrap; word-break: break-word; }
.blog-comment-empty { color: #9aa3b2; font-size: 14px; padding: 6px 0 14px; }

.comment-form-title { font-size: 15px; margin: 0 0 10px; color: #334; }
.comment-fields { margin-bottom: 8px; }
.cf-nick { width: 240px; max-width: 100%; box-sizing: border-box; padding: 9px 12px; border: 1px solid #dcdcdc; border-radius: 8px; font-size: 14px; }
.cf-content { width: 100%; box-sizing: border-box; min-height: 92px; padding: 10px 12px; border: 1px solid #dcdcdc; border-radius: 8px; font-size: 14px; resize: vertical; font-family: inherit; }
.cf-actions { margin-top: 10px; display: flex; align-items: center; gap: 14px; }
.cf-submit { padding: 9px 22px; background: #2563eb; color: #fff; border: 0; border-radius: 8px; font-size: 14px; cursor: pointer; }
.cf-submit:hover { background: #1d4ed8; }
.cf-msg { font-size: 13px; }

/* 响应式：移动端单列 */
@media (max-width: 720px) {
  .blog-list { grid-template-columns: 1fr; }
  .blog-post { padding: 20px 18px; }
  .blog-post-title { font-size: 22px; }
  .cf-nick { width: 100%; }
}
@media (max-width: 720px) {
  .blog-list { grid-template-columns: 1fr; }
  .blog-post { padding: 20px 18px; }
  .blog-post-title { font-size: 22px; }
}