:root{--bg: #faf8f3;--surface: #ffffff;--text: #1c1f1a;--muted: #6b7068;--line: #e4e0d6;--accent: #2f6b3a;--accent-soft: #e6f0e4;--serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", Georgia, "Times New Roman", serif;--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;--wrap: 1080px;--read: 680px}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #121512;--surface: #1a1e1a;--text: #e8eae4;--muted: #9aa094;--line: #2b302a;--accent: #7fc48a;--accent-soft: #1f2b20}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.7;font-size:17px}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}img{max-width:100%;height:auto}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}.site-header{border-bottom:3px double var(--line);background:var(--bg)}.masthead{text-align:center;padding:28px 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blockquote{margin:1.5em 0;padding:.2em 0 .2em 1.2em;border-left:3px solid var(--accent);color:var(--muted)}.prose a{color:var(--accent);border-bottom:1px solid currentColor}.prose img{border-radius:4px;margin:1em 0}.prose hr{border:0;border-top:1px solid var(--line);margin:2.5em 0}.prose code{background:var(--accent-soft);padding:1px 5px;border-radius:3px;font-size:.9em}.subscribe{background:var(--accent-soft);border:1px solid var(--line);border-radius:6px;padding:24px;margin:44px 0}.subscribe h3{font-family:var(--serif);margin:0 0 4px;font-size:1.25rem}.subscribe p{margin:0 0 14px;color:var(--muted);font-size:.95rem}.subscribe form{display:flex;gap:8px;flex-wrap:wrap}.subscribe input[type=email]{flex:1 1 220px;padding:10px 12px;border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--text);font:inherit;font-size:.95rem}.subscribe button{padding:10px 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