:root{--bg:#f7f8fa;--fg:#1f2328;--muted:#6b7280;--accent:#1f6feb;--card:#fff;--border:#e6e8eb;--code:#f3f4f6}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg);line-height:1.6}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.site-head{background:var(--card);border-bottom:1px solid var(--border)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:700;color:var(--fg);font-size:1.05rem}
.brand .logo{color:var(--accent);font-family:ui-monospace,Menlo,Consolas,monospace;margin-right:4px}
nav a{color:var(--muted);margin-left:18px;font-size:.92rem}
nav a:hover{color:var(--accent)}
main.wrap{padding-top:28px;padding-bottom:40px}
.hero{padding:24px 0 8px}
.hero h1{font-size:2rem;margin:0 0 10px}
.hero p{color:var(--muted);font-size:1.05rem;max-width:62ch}
.section-title{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:28px 0 12px;border-bottom:1px solid var(--border);padding-bottom:6px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 20px;margin-bottom:14px}
.card-title{font-size:1.15rem;font-weight:600;color:var(--fg)}
.card-desc{color:var(--muted);margin:8px 0 10px}
.card-meta{font-size:.82rem;color:var(--muted)}
.tag{display:inline-block;background:var(--code);border-radius:6px;padding:1px 8px;margin-left:4px;font-size:.78rem;color:#374151;font-family:ui-monospace,Menlo,Consolas,monospace}
.post h1{font-size:1.7rem;margin:8px 0 6px}
.post-meta{color:var(--muted);font-size:.85rem;margin-bottom:22px}
.post h2{font-size:1.25rem;margin:28px 0 8px}
.post p{margin:12px 0}
.post ul{margin:12px 0;padding-left:22px}
.post li{margin:6px 0}
pre{background:#0d1117;color:#e6edf3;border-radius:10px;padding:16px;overflow-x:auto;font-size:.86rem;line-height:1.5}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
p code,li code{background:var(--code);color:#b91c4d;border-radius:5px;padding:1px 6px;font-size:.88em}
pre code{background:none;color:inherit;padding:0}
hr{border:none;border-top:1px solid var(--border);margin:28px 0}
.muted{color:var(--muted)}
.site-foot{border-top:1px solid var(--border);background:var(--card);margin-top:30px;padding:22px 0;font-size:.85rem}
.site-foot p{margin:4px 0}
.site-foot a{color:var(--muted)}
@media(max-width:520px){.hero h1{font-size:1.6rem}nav a{margin-left:12px}}