:root{--fg:#1f2933;--muted:#6b7280;--bg:#fdfdfc;--accent:#2f6f4f;--line:#e5e7eb}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--fg);background:var(--bg);line-height:1.7}
.site-header{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;border-bottom:1px solid var(--line)}
.brand{font-weight:700;font-size:18px;text-decoration:none;color:var(--fg)}
nav a{margin-left:16px;color:var(--muted);text-decoration:none}
main{max-width:720px;margin:0 auto;padding:32px 24px}
.intro h1{font-size:30px;margin-bottom:8px}
.intro p{color:var(--muted)}
.post{padding:18px 0;border-bottom:1px solid var(--line)}
.post h2{margin:0 0 6px;font-size:20px}
.post h2 a{color:var(--fg);text-decoration:none}
.post time{color:var(--muted);font-size:13px}
.post .more{display:inline-block;margin-top:8px;color:var(--accent);text-decoration:none}
.single .content{margin-top:18px}
.site-footer{text-align:center;color:var(--muted);font-size:13px;padding:28px}