:root{
  --primary:#ff5000;
  --bg:#f5f6f8;
  --card:#fff;
  --text:#222;
  --muted:#888;
  --border:#eee;
}
*{box-sizing:border-box;}
body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);}
a{color:inherit;text-decoration:none;}

/* ---------- 顶栏 ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;}
.site-header .inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:10px 16px;}
.logo{font-size:20px;font-weight:700;color:var(--primary);white-space:nowrap;}
.search{flex:1;display:flex;max-width:560px;}
.search input{flex:1;border:2px solid var(--primary);border-right:none;padding:9px 12px;border-radius:6px 0 0 6px;outline:none;font-size:14px;}
.search button{background:var(--primary);color:#fff;border:none;padding:0 22px;border-radius:0 6px 6px 0;cursor:pointer;font-size:14px;}

/* ---------- 首页 ---------- */
.home{max-width:1200px;margin:16px auto;padding:0 16px;}
.hero{background:linear-gradient(135deg,var(--primary),#ff8a4c);color:#fff;border-radius:14px;padding:40px 24px;text-align:center;}
.hero h1{margin:0 0 8px;font-size:28px;}
.hero p{margin:0;opacity:.92;}
.hero-btn{display:inline-block;margin-top:18px;background:#fff;color:var(--primary);padding:11px 30px;border-radius:10px;font-weight:600;}
.section-title{margin:28px 0 14px;font-size:20px;}

/* ---------- 目录布局 ---------- */
.catalog{max-width:1200px;margin:16px auto;display:flex;gap:16px;padding:0 16px;}
.catalog-cats{width:200px;flex:none;background:var(--card);border-radius:10px;padding:8px;align-self:flex-start;}
.catalog-cats h3{font-size:14px;margin:8px 10px;}
.catalog-cats ul{list-style:none;margin:0;padding:0;}
.catalog-cats li a{display:block;padding:10px 12px;border-radius:8px;font-size:14px;color:#444;}
.catalog-cats li.active a,.catalog-cats li a:hover{background:var(--primary);color:#fff;}
.catalog-main{flex:1;min-width:0;}

/* ---------- 作品网格 / 卡片 ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.product-card{display:block;background:transparent;border:none;overflow:visible;text-align:center;transition:transform .25s;}
.product-card:hover{transform:translateY(-6px);}
.product-card .thumb{aspect-ratio:4/3;background:#f0f0f0;overflow:hidden;transition:box-shadow .25s;}
.product-card:hover .thumb{box-shadow:0 10px 26px rgba(0,0,0,.16);}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;display:block;}
.product-card .thumb.no-img{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#dfe6ee,#c9d4e0);}
.product-card .thumb.no-img span{color:#7a8aa0;font-size:13px;}
.product-card h4{font-size:15px;margin:12px 0 0;line-height:1.5;font-weight:400;color:var(--text);transition:color .2s;}
.product-card:hover h4{color:var(--primary);}

/* ---------- 详情页 ---------- */
.single-product-wrap{max-width:1200px;margin:16px auto;display:flex;gap:24px;padding:0 16px;}
.gallery{width:420px;flex:none;}
.gallery .main-img{border-radius:10px;overflow:hidden;background:#f0f0f0;aspect-ratio:1/1;}
.gallery .main-img img{width:100%;height:100%;object-fit:cover;}
.gallery .thumbs{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap;}
.gallery .thumbs .t{width:64px;height:64px;border-radius:6px;border:2px solid transparent;cursor:pointer;overflow:hidden;}
.gallery .thumbs .t.active{border-color:var(--primary);}
.gallery .thumbs .t img{width:100%;height:100%;object-fit:cover;display:block;}
.pinfo{flex:1;min-width:0;}
.pinfo h1{font-size:22px;margin:0 0 10px;}
.ptags{margin:0 0 14px;display:flex;flex-wrap:wrap;gap:8px;}
.ptag{display:inline-block;background:#f2f5f8;color:var(--primary);font-size:12px;padding:3px 10px;border-radius:999px;}
.pinfo .meta{font-size:13px;color:var(--muted);margin:4px 0;}
.spec-table{width:100%;border-collapse:collapse;margin:14px 0;}
.spec-table td{padding:9px 12px;border:1px solid var(--border);font-size:14px;vertical-align:top;}
.spec-table td:first-child{background:#fafafa;color:var(--muted);width:120px;}
.pdesc{font-size:14px;line-height:1.7;color:#444;margin-top:12px;}

/* ---------- 无侧栏列表页 ---------- */
.catalog-list{max-width:1200px;margin:16px auto;padding:0 16px;}
.list-head{margin-bottom:16px;}
.list-title{font-size:22px;margin:0 0 12px;}
.cat-chips{display:flex;flex-wrap:wrap;gap:8px;}
.cat-chips a{padding:7px 16px;border:1px solid var(--border);border-radius:999px;font-size:13px;color:#555;background:#fff;}
.cat-chips a:hover,.cat-chips a.active{background:var(--primary);border-color:var(--primary);color:#fff;}
.section-h{font-size:18px;margin:18px 0 6px;}


/* ---------- 页脚 ---------- */
.site-footer{text-align:center;padding:24px;color:#999;font-size:13px;}
.site-footer a{color:#999;text-decoration:none;}
.site-footer a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media(max-width:768px){
  .catalog{flex-direction:column;}
  .catalog-cats{width:100%;}
  .catalog-cats ul{display:flex;overflow-x:auto;}
  .catalog-cats li a{white-space:nowrap;}
  .cat-chips{overflow-x:auto;flex-wrap:nowrap;}
  .single-product-wrap{flex-direction:column;}
  .gallery{width:100%;}
  .product-grid{grid-template-columns:repeat(2,1fr);}
}