:root{
  --ink:#0b0b0b;
  --muted:#6b7280;
  --border:#e5e7eb;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 10px 24px rgba(0,0,0,.06);
}

html{font-size:16px}
body{
  margin:0; color:var(--ink); background:#fff;
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue",Arial,"PingFang TC","Microsoft JhengHei",sans-serif;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}

/* Header / Nav */
.header{position:sticky; top:0; z-index:1000; background:#fff; border-bottom:1px solid var(--border);}
.nav{max-width:1100px; margin:0 auto; height:64px; display:flex; align-items:center; gap:24px; padding:0 20px;}
.brand{font-weight:700; letter-spacing:.06em}
.spacer{flex:1}
.menu{display:flex; gap:18px}
.menu a{color:var(--ink); text-decoration:none; font-weight:600; padding:10px 12px; border-radius:10px}
.menu a:hover{background:#f5f7fb}
.burger{display:none; width:40px; height:40px; border:1px solid var(--border); border-radius:10px; background:#fff; align-items:center; justify-content:center}
.burger span{width:18px; height:2px; background:#111; display:block; border-radius:2px}
.drawer{display:none}
@media (max-width:840px){
  .menu{display:none}
  .burger{display:flex}
  .drawer{display:none; flex-direction:column; gap:10px; padding:12px; background:#fff}
  .drawer a{padding:12px; border-radius:10px; border:1px solid var(--border); color:#111; text-decoration:none}
}

/* Hero banner */
.hero{position:relative; overflow:hidden; background:#f7f7f7}
.hero img{width:100%; height:auto; object-fit:cover; display:block}

/* Sections */
.section{max-width:1100px; margin:48px auto; padding:0 20px}
.section h2{font-size:1.6rem; margin:0 0 10px; text-align:center}
.center{text-align:center}
.subtle{color:var(--muted)}

/* Grid / Cards */
.grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
@media (max-width:1024px){ .grid{grid-template-columns:repeat(3,1fr)} }
@media (max-width:720px){ .grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:420px){ .grid{grid-template-columns:1fr} }

.card{background:var(--card); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow); overflow:hidden; transition:transform .18s ease}
.card:hover{transform:translateY(-4px)}
.thumb{background:#fff; display:flex; align-items:center; justify-content:center; padding:14px; min-height:160px}
.thumb img{max-width:100%; height:auto; object-fit:contain}
.body{padding:14px}
.title{font-weight:700; margin-bottom:2px}
.meta{color:var(--muted); font-size:.9rem}

/* Footer */
.footer{margin-top:60px; border-top:1px solid var(--border); background:#fff}
.footer .wrap{max-width:1100px; margin:0 auto; padding:28px 20px; color:#6b7280; font-size:.95rem}
.footer .cols{display:grid; grid-template-columns:1fr auto; align-items:center; gap:16px}
.footer .links{display:flex; gap:16px}
.footer a{color:#6b7280; text-decoration:none}
.footer a:hover{color:#111}
.small{font-size:.86rem}