:root {
  --bg: #f6f7f9; --panel: #fff; --text: #1d2330; --muted: #6b7385; --line: #e3e6ec; --accent: #2f6fed; --code: #f0f2f6;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #12151b; --panel: #1a1e26; --text: #e6e9ef; --muted: #8b93a5; --line: #2a303b; --accent: #6ea0ff; --code: #232833; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text); line-height: 1.75; font-size: 16px;
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 0 20px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.site { padding: 44px 0 20px; }
header.site .name { font-size: 24px; font-weight: 700; color: var(--text); }
header.site .desc { margin: 6px 0 0; color: var(--muted); font-size: 15px; }

.list { list-style: none; margin: 12px 0 0; padding: 0; }
.list li { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; margin-bottom: 14px; }
.list h2 { margin: 0; font-size: 18px; font-weight: 650; line-height: 1.5; }
.list time, article time { color: var(--muted); font-size: 13px; }
.list p { margin: 6px 0 0; color: var(--muted); font-size: 15px; }

article { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 26px 24px 18px; }
article h1 { margin: 0 0 4px; font-size: 22px; line-height: 1.45; }
article h2 { margin: 26px 0 8px; font-size: 17px; }
article p, article li { font-size: 15.5px; }
article ul, article ol { padding-left: 22px; }
article code { background: var(--code); border-radius: 5px; padding: 1px 6px; font-size: 13.5px; font-family: Consolas, "SF Mono", Menlo, monospace; }
article pre { background: var(--code); border-radius: 10px; padding: 12px 14px; overflow-x: auto; line-height: 1.55; }
article pre code { background: none; padding: 0; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 10px 0; }
th, td { border-bottom: 1px solid var(--line); padding: 7px 8px; text-align: left; }
th { color: var(--muted); font-weight: 600; }
.back { display: inline-block; margin: 18px 0 0; font-size: 14px; }

footer.site { padding: 28px 0 36px; text-align: center; color: var(--muted); font-size: 13px; }
footer.site p { margin: 2px 0; }
footer.site a { color: var(--muted); margin: 0 6px; }