:root{
  --bg:#f6f8fb;
  --card:#ffffff;
  --text:#0b1220;
  --muted:#5b677a;
  --line:#e6eaf0;
  --accent:#2563eb;
  --shadow: 0 8px 24px rgba(15,23,42,.08);
  --radius:14px;
}

*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;line-height:1.5}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}

.wrap{max-width:1100px;margin:0 auto;padding:16px}

.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.top .wrap{display:flex;align-items:center;gap:12px;padding:12px 16px}
.brand{font-weight:800;letter-spacing:.02em}
.nav{color:var(--accent);font-weight:650}
.sp{flex:1}

.h1{margin:14px 0 8px;font-size:22px}

.cat{margin-top:12px}
.catHead{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:6px 0 8px}
.catHead h2{margin:0;font-size:16px}

.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:12px}

.card{grid-column:span 12;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;gap:12px}
.thumb{display:block;flex:0 0 220px;max-width:220px;aspect-ratio:16/9;background:#eef2ff;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb.ph{background:linear-gradient(135deg,#e2e8f0,#f8fafc)}
.body{padding:12px 12px 12px 0;min-width:0;flex:1}
.title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:15px;font-weight:750;line-height:1.25;margin:0 0 6px}
.meta{color:var(--muted);font-size:12px;margin-bottom:8px}
.excerpt{color:#1f2937;font-size:13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

.empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:14px;color:var(--muted)}

.crumb{margin:10px 0 10px;color:var(--muted);font-size:13px}
.crumb a{color:var(--accent)}
.sep{margin:0 6px;color:#94a3b8}

.postTitle{margin:0 0 8px;font-size:26px;line-height:1.18}
.postMeta{color:var(--muted);font-size:13px;margin-bottom:10px}
.cover{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.cover img{width:100%;height:auto;display:block}

.content{margin-top:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px}
.content img{max-width:100%;height:auto}
.content table{width:100%;border-collapse:collapse;overflow:auto}
.content table, .content th, .content td{border:1px solid #e5e7eb}
.content th, .content td{padding:8px;vertical-align:top}
.content a{color:var(--accent);text-decoration:underline}
.content h1,.content h2,.content h3{line-height:1.25}

.tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;gap:6px;background:#f1f5f9;border:1px solid var(--line);padding:6px 10px;border-radius:999px;font-size:12px;color:#0f172a}

.foot{margin-top:18px;border-top:1px solid var(--line);background:#fff}
.foot .wrap{color:var(--muted);font-size:12px;padding:14px 16px}

@media (min-width: 860px){
  .card{grid-column:span 6}
}

@media (max-width: 600px){
  .wrap{padding:12px}
  .card{flex-direction:column}
  .thumb{flex:0 0 auto;max-width:none;width:100%}
  .body{padding:12px}
  .postTitle{font-size:22px}
}