:root {
  --bg: #f6f7f9; --panel: #fff; --text: #16181d; --muted: #646b78; --line: #e4e7ec; --accent: #2f6fed; --code: #eef1f5;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1115; --panel: #181b21; --text: #eceef2; --muted: #9aa1ad; --line: #2a2f38; --accent: #7aa2ff; --code: #22262e; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.8 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Helvetica Neue", sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }
header.site { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 20px 0; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--text); }
.brand img { width: 32px; height: 32px; border-radius: 50%; background: #fff; border: 1px solid var(--line); }
header.site nav, footer.site nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 14px; }
header.site nav a { color: var(--muted); }
main { padding: 8px 0 24px; }
footer.site { border-top: 1px solid var(--line); padding: 24px 0 48px; color: var(--muted); font-size: 13px; }
footer.site nav { margin-bottom: 8px; }
footer.site nav a { color: var(--muted); }
h1 { font-size: clamp(24px, 4.6vw, 34px); line-height: 1.4; margin: 28px 0 8px; }
.meta { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
.post h2 { font-size: 21px; margin: 40px 0 12px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.post h3 { font-size: 17px; margin: 28px 0 8px; }
.post p, .post li { font-size: 16px; }
.post img { max-width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); }
.post table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; display: block; overflow-x: auto; }
.post th, .post td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.post th { background: var(--panel); }
.post code { background: var(--code); padding: 1px 5px; border-radius: 4px; font-size: .92em; }
.post pre { background: var(--code); padding: 14px 16px; border-radius: 10px; overflow-x: auto; line-height: 1.55; }
.post pre code { background: none; padding: 0; }
.post blockquote { margin: 16px 0; padding: 4px 16px; border-left: 3px solid var(--line); color: var(--muted); }
.posts { list-style: none; padding: 0; margin: 16px 0; }
.posts li { padding: 16px 0; border-bottom: 1px solid var(--line); }
.posts .date { color: var(--muted); font-size: 13px; }
.posts .title { display: block; font-size: 18px; font-weight: 700; margin: 2px 0 4px; }
.posts .desc { color: var(--muted); font-size: 14px; }
.tag { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); margin-right: 6px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.post .task-list { list-style: none; padding-left: 4px; }
.post .task-list input { margin-right: 8px; }
.crumbs { color: var(--muted); font-size: 13px; margin: 20px 0 0; }
.crumbs a { color: var(--muted); }
a.tag { text-decoration: none; }
.cats { display: flex; flex-wrap: wrap; gap: 8px; margin: -8px 0 20px; }
.appbox { margin: 36px 0 8px; padding: 16px 18px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; }
.appbox p { margin: 6px 0; }
.appbox-name { font-weight: 700; font-size: 17px; }
.appbox-btn { display: inline-block; padding: 7px 14px; margin-right: 10px; border-radius: 8px; background: var(--accent); color: #fff; font-weight: 600; }
.related { margin: 32px 0 8px; }
.related h2 { font-size: 17px; margin: 0 0 8px; }
.related ul { margin: 0; padding-left: 20px; }
.related li { margin: 6px 0; }