:root {
  --bg: #151110; --fg: #d2c6b3; --muted: #938571; --faint: #6f6353;
  --title: #fbf6ec; --accent: #e3a87f; --line: #2c241f; --code-bg: #201a16;
  --serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', 'STSong', serif;
}
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'Noto Sans SC', 'PingFang SC',
               'Microsoft YaHei', system-ui, sans-serif;
  font-size: 16px; line-height: 1.8;
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
.wrap { width: 100%; max-width: 720px; margin: 0 auto; padding-inline: 20px; box-sizing: border-box; }

header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--title);
         font-family: var(--serif); font-weight: 700; font-size: 18px; letter-spacing: .12em; }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; }
nav.main { display: flex; gap: 22px; font-size: 14px; }
nav.main a { color: var(--muted); }
nav.main a:hover, nav.main a[aria-current] { color: var(--title); text-decoration: none; }

main { flex: 1; padding-block: 40px 56px; }
footer.site { border-top: 1px solid var(--line); font-size: 12px; color: var(--faint); }
footer.site .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; padding-block: 18px; }
footer.site a { color: var(--faint); }
footer.site a:hover { color: var(--accent); }

/* 首页 */
.hero { text-align: center; padding-block: 28px 12px; }
.hero .lockup { width: min(420px, 86vw); height: auto; }
.hero blockquote { font-family: var(--serif); font-size: 13px; line-height: 1.9; letter-spacing: .08em;
                   color: var(--muted); margin: 18px auto 0; max-width: 30em; }
.section-title { font-family: var(--serif); font-size: 15px; letter-spacing: .2em; color: var(--muted);
                 margin: 48px 0 8px; display: flex; justify-content: space-between; align-items: baseline; }
.section-title a { font-family: inherit; font-size: 13px; letter-spacing: .05em; }

/* 文章列表 */
ul.posts { list-style: none; padding: 0; margin: 0; }
ul.posts li { padding-block: 16px; border-bottom: 1px solid var(--line); }
ul.posts li:last-child { border-bottom: 0; }
ul.posts .t { font-size: 17px; color: var(--title); font-weight: 600; }
ul.posts .meta { font-size: 12px; color: var(--faint); font-variant-numeric: tabular-nums; }
ul.posts .sum { font-size: 14px; color: var(--muted); margin-top: 2px; }

/* 正文 */
.page-title { font-family: var(--serif); color: var(--title); font-size: 28px; line-height: 1.4;
              letter-spacing: .04em; margin: 0 0 6px; }
.page-meta { font-size: 13px; color: var(--faint); margin-bottom: 28px; font-variant-numeric: tabular-nums; }
.prose h2 { font-family: var(--serif); color: var(--title); font-size: 20px; margin: 2em 0 .6em; }
.prose h3 { color: var(--title); font-size: 17px; margin: 1.6em 0 .5em; }
.prose p, .prose ul, .prose ol { margin: 0 0 1.1em; }
.prose li { margin: .25em 0; }
.prose strong { color: var(--title); }
.prose blockquote { margin: 0 0 1.2em; padding: 2px 0 2px 16px; border-left: 3px solid #A63A2B;
                    color: var(--muted); font-family: var(--serif); }
.prose code { background: var(--code-bg); border-radius: 4px; padding: .1em .35em; font-size: .9em; }
.prose pre { background: var(--code-bg); border-radius: 8px; padding: 14px 16px; overflow-x: auto;
             font-size: 14px; line-height: 1.6; }
.prose pre code { background: none; padding: 0; }
.prose img { max-width: 100%; height: auto; }
.prose table { border-collapse: collapse; display: block; overflow-x: auto; font-size: 14px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 6px 10px; }
.back { display: inline-block; margin-top: 36px; font-size: 14px; }

@media (max-width: 480px) {
  nav.main { gap: 16px; }
  .page-title { font-size: 24px; }
}