:root{--bg:#f7f7f8;--card:#ffffff;--text:#222;--muted:#666;--accent:#2b8cff}
*{box-sizing:border-box}
body{font-family:Inter,Segoe UI,Helvetica,Arial,sans-serif;margin:0;background:var(--bg);color:var(--text);line-height:1.6}
.site-header{background:var(--card);padding:24px 20px;border-bottom:1px solid #e6e6e6}
.site-title{margin:0;font-size:1.25rem}
.site-desc{margin:6px 0 0;color:var(--muted)}
main{max-width:900px;margin:28px auto;padding:0 16px}
.post-card{background:var(--card);padding:18px;margin-bottom:12px;border-radius:8px;box-shadow:0 1px 2px rgba(0,0,0,0.04)}
.post-card h2{margin:0 0 8px}
.post-meta{color:var(--muted);font-size:0.9rem;margin-bottom:8px}
.site-footer{text-align:center;padding:20px;color:var(--muted)}
a{color:var(--accent);text-decoration:none}
a.back{font-size:0.9rem;margin-right:12px}
.post-header{margin-bottom:20px;border-bottom:1px solid #eeeeee;padding-bottom:14px}
.post-header h1{margin:0 0 8px;font-size:2rem;line-height:1.2}
.post-date{color:var(--muted);font-size:0.95rem}
#post-content{max-width:780px;margin:18px auto;background:var(--card);padding:24px;border-radius:8px}
.post-body h1,.post-body h2,.post-body h3{color:var(--text)}
pre{background:#0d1117;color:#c9d1d9;padding:12px;border-radius:6px;overflow:auto}