:root{
  --max-width:1200px;
  --accent:#0b74de;
  --muted:#6b7280;
  --bg:#f7f7f8;
}
*{box-sizing:border-box}
body{font-family:Inter,system-ui,Segoe UI,Helvetica,Arial,sans-serif;margin:0;background:var(--bg);color:#111}
.container{max-width:var(--max-width);margin:0 auto;padding:0 16px}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{font-weight:700;text-decoration:none;color:inherit}
.nav{display:block}
.nav-list{list-style:none;padding:0;margin:0;display:flex;gap:18px;align-items:center}
.nav-list a{text-decoration:none;color:inherit;padding:8px}
.has-sub{position:relative}
.has-sub .sub{position:absolute;left:0;top:100%;background:#fff;border:1px solid #eee;display:none;min-width:220px;padding:8px;border-radius:6px;box-shadow:0 6px 18px rgba(12,12,12,0.06)}
.has-sub:hover .sub{display:block}
.sub li{margin:0}
.nav-toggle{display:none;background:none;border:0;font-size:20px}


/* 轮播 */
.hero{padding:18px 0}
.carousel{position:relative;overflow:hidden;border-radius:10px;background:#ddd}
.slides{display:flex;transition:transform .5s ease}
.slide{min-width:100%;position:relative}
.slide img{width:100%;height:320px;object-fit:cover;display:block}
.slide-caption{position:absolute;left:28px;bottom:28px;color:#fff;text-shadow:0 6px 18px rgba(0,0,0,.35)}
.btn{display:inline-block;margin-top:8px;padding:8px 12px;background:var(--accent);color:#fff;border-radius:6px;text-decoration:none}
.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.35);border:0;color:#fff;padding:10px 12px;border-radius:6px;cursor:pointer}
.carousel-prev{left:12px}
.carousel-next{right:12px}
.carousel-dots{position:absolute;left:50%;transform:translateX(-50%);bottom:10px;display:flex;gap:8px}
.carousel-dots button{width:8px;height:8px;border-radius:50%;border:0;background:rgba(255,255,255,.55)}
.carousel-dots button.active{background:#fff}


/* 分类面板 */
.category-panels{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:22px 0}
.panel{background:#fff;padding:16px;border-radius:8px;box-shadow:0 6px 18px rgba(12,12,12,0.04)}
.panel-title{margin:0 0 10px;font-size:18px}
.post-list{list-style:none;margin:0;padding:0}
.post-list li{margin:8px 0}
.post-list a{text-decoration:none;color:var(--accent)}


/* 最新文章网格 */
.latest{margin:20px 0}
.latest-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.card{background:#fff;border-radius:8px;padding:12px;box-shadow:0 6px 18px rgba(12,12,12,0.04)}
.card img{width:100%;height:120px;object-fit:cover;border-radius:6px}
.excerpt{color:var(--muted);font-size:14px}


.site-footer{padding:18px 0;text-align:center;color:var(--muted)}


/* 响应式 */
@media (max-width:900px){
.nav-list{display:none;flex-direction:column;background:#fff;position:absolute;right:16px;top:64px;border-radius:8px;box-shadow:0 6px 18px rgba(12,12,12,0.06);padding:8px}
.nav-list.open{display:flex}
.nav-toggle{display:block}
.slide img{height:200px}
}