:root {
  --bg: #ffffff;
  --text: #2c2c2a;
  --text-2: #5f5e5a;
  --border: #e4e2d9;
  --accent: #185fa5;
  --accent-2: #0f6e56;
  --dl-bg: #f4f7fa;
  --code-bg: #f6f6f3;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }

.site-header { border-bottom: 1px solid var(--border); padding: 18px 0; }
.site-header .wrap { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.site-title { font-size: 20px; font-weight: 600; color: var(--text); }
.site-title:hover { text-decoration: none; }
.site-nav a { margin-left: 16px; color: var(--text-2); font-size: 14px; }
.site-nav a:hover { color: var(--accent); text-decoration: none; }

main.wrap { padding-top: 32px; padding-bottom: 48px; min-height: 60vh; }

.post-item { margin-bottom: 36px; }
.post-title { font-size: 22px; line-height: 1.4; margin: 0 0 6px; }
.post-title a { color: var(--text); }
.post-title a:hover { color: var(--accent); text-decoration: none; }
.post-meta { font-size: 13px; color: var(--text-2); margin-bottom: 8px; }
.post-tags a { margin-right: 8px; color: var(--accent-2); }
.post-desc { margin: 6px 0 0; color: var(--text-2); }

.post-content { margin-top: 24px; }
.post-content img { max-width: 100%; }
.post-content pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 14px;
}
.post-content code { background: var(--code-bg); border-radius: 4px; padding: 2px 5px; font-size: 14px; }
.post-content pre code { background: none; padding: 0; }
.post-content blockquote { margin: 16px 0; padding: 2px 16px; border-left: 3px solid var(--accent); color: var(--text-2); }
.post-content table { border-collapse: collapse; width: 100%; margin: 16px 0; }
.post-content th, .post-content td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }

.dl-box {
  margin: 24px 0;
  border: 1px solid #cfe0ee;
  background: var(--dl-bg);
  border-radius: 10px;
  padding: 16px 20px;
}
.dl-box-inline { margin: 10px 0 0; padding: 8px 14px; border-color: var(--border); background: #fafaf7; font-size: 14px; color: var(--text-2); }
.dl-title { margin: 0 0 12px; font-size: 16px; }
.dl-list { list-style: none; margin: 0; padding: 0; }
.dl-list li { border-bottom: 1px dashed var(--border); }
.dl-list li:last-child { border-bottom: none; }
.dl-link { display: flex; align-items: baseline; gap: 10px; padding: 10px 4px; }
.dl-link:hover { text-decoration: none; background: #ffffff; }
.dl-name { font-weight: 600; color: var(--text); }
.dl-note { font-size: 13px; color: var(--text-2); }
.dl-size { margin-left: auto; font-size: 13px; color: var(--accent-2); white-space: nowrap; }

.pagination { display: flex; gap: 10px; margin: 32px 0; }
.pagination .page-number, .pagination .prev, .pagination .next {
  padding: 4px 12px; border: 1px solid var(--border); border-radius: 6px; color: var(--text-2); font-size: 14px;
}
.pagination .current { background: var(--accent); color: #fff; border-color: var(--accent); }

.site-footer { border-top: 1px solid var(--border); padding: 20px 0; color: var(--text-2); font-size: 13px; }
.site-footer a { color: var(--text-2); }

@media (max-width: 560px) {
  .site-header .wrap { display: block; }
  .site-nav { margin-top: 8px; }
  .site-nav a { margin-left: 0; margin-right: 14px; }
}