:root{
  --bg:#f7f8fb; --panel:#fff; --fg:#111827; --muted:#6b7280; --line:#e6e8ef;
  --brand:#4f46e5; --brand-soft:#eef2ff; --ok:#10b981; --warn:#f59e0b; --danger:#ef4444;
  --radius:14px; --shadow:0 4px 18px rgba(17,24,39,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 18px}
header.site{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-inner{max-width:1140px;margin:0 auto;padding:0 18px;height:62px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.2px}
.brand-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,#4f46e5,#0ea5e9);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:900}
nav.site-nav{display:flex;gap:4px;overflow:auto}
nav.site-nav a{padding:7px 12px;border-radius:999px;color:var(--muted);font-size:14px;white-space:nowrap}
nav.site-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.hero{padding:34px 0 10px}
.hero h1{margin:0 0 8px;font-size:30px;line-height:1.25;letter-spacing:-.2px}
.hero p{margin:0;color:var(--muted);font-size:15px}
.searchbar{margin:20px 0 6px;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.searchbar input{flex:1 1 280px;min-width:0;padding:12px 16px;border:1px solid var(--line);border-radius:12px;font-size:15px;background:#fff;outline:none}
.searchbar input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.updated{font-size:12.5px;color:var(--muted)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 6px}
.chip{border:1px solid var(--line);background:#fff;color:#374151;padding:7px 13px;border-radius:999px;font-size:13.5px;cursor:pointer;white-space:nowrap}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
.chip small{opacity:.65;margin-left:4px}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:18px 0 12px}
.toolbar .count{font-size:13.5px;color:var(--muted)}
.sorts{display:flex;gap:6px}
.sorts button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:7px 11px;font-size:13px;cursor:pointer;color:#374151}
.sorts button.on{background:var(--brand-soft);border-color:#c7d2fe;color:var(--brand);font-weight:700}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:14px;padding-bottom:40px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.16s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#d8dce8}
.card-cover{aspect-ratio:16/9;background:#f1f3f9;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover}
.card-body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-cat{font-size:11.5px;color:var(--brand);background:var(--brand-soft);border-radius:6px;padding:2px 7px;align-self:flex-start}
.card-name{font-size:14px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:40px}
.card-meta{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-top:auto}
.price{color:var(--danger);font-weight:800;font-size:17px}
.price small{font-size:11.5px;font-weight:600;color:var(--muted);margin-left:3px}
.sold{font-size:12px;color:var(--muted)}
.badges{display:flex;gap:6px;flex-wrap:wrap}
.badge{font-size:11.5px;padding:2px 7px;border-radius:6px;background:#f3f4f6;color:#4b5563}
.badge.ok{background:#ecfdf5;color:#047857}
.badge.warn{background:#fffbeb;color:#b45309}
.badge.off{background:#fef2f2;color:#b91c1c}
.empty{padding:60px 0;text-align:center;color:var(--muted)}
.crumbs{font-size:13px;color:var(--muted);padding:18px 0 6px}
.crumbs a{color:var(--brand)}
.detail{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;padding-bottom:30px}
@media(max-width:860px){.detail{grid-template-columns:1fr}.hero h1{font-size:23px}}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.panel h2{margin:0 0 12px;font-size:16px}
.detail h1{font-size:21px;line-height:1.4;margin:2px 0 14px}
.price-big{color:var(--danger);font-weight:900;font-size:30px;line-height:1.1}
.price-big small{font-size:13px;color:var(--muted);font-weight:600;margin-left:6px}
.cta{display:block;text-align:center;background:linear-gradient(135deg,#4f46e5,#0ea5e9);color:#fff;font-weight:800;padding:14px;border-radius:12px;margin:16px 0 10px;font-size:16px}
.cta:hover{filter:brightness(1.05)}
.cta-sub{text-align:center;font-size:12.5px;color:var(--muted)}
table.variants{width:100%;border-collapse:collapse;font-size:14px}
table.variants td{padding:9px 6px;border-bottom:1px dashed var(--line)}
table.variants td:last-child{text-align:right;font-weight:800;color:var(--danger);white-space:nowrap}
ul.points{margin:0;padding-left:19px}
ul.points li{margin:7px 0;font-size:14px;color:#374151}
.desc{font-size:14px;color:#374151;white-space:pre-wrap;word-break:break-word}
.related{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.related a{display:block;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:13px}
.related a:hover{border-color:var(--brand);color:var(--brand)}
.prose{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin:18px 0 40px}
.prose h2{font-size:19px;margin:26px 0 10px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:15.5px;margin:18px 0 8px}
.prose p,.prose li{font-size:14.5px;color:#384152}
.prose table{width:100%;border-collapse:collapse;font-size:14px;margin:12px 0}
.prose th,.prose td{border:1px solid var(--line);padding:9px 11px;text-align:left}
.prose th{background:#f8fafc;font-weight:700}
.tip{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:12px 14px;font-size:13.5px;color:#92400e;margin:14px 0}
footer.site{border-top:1px solid var(--line);background:#fff;margin-top:20px}
.foot{max-width:1140px;margin:0 auto;padding:26px 18px 40px;font-size:12.5px;color:var(--muted);line-height:1.8}
.foot strong{color:#374151}
.float-cta{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,#4f46e5,#0ea5e9);color:#fff;font-weight:800;font-size:14px;
  padding:12px 18px;border-radius:999px;box-shadow:0 10px 26px rgba(79,70,229,.35);transition:.18s}
.float-cta:hover{transform:translateY(-2px);filter:brightness(1.06)}
@media(max-width:640px){.float-cta{right:12px;bottom:12px;padding:11px 15px;font-size:13px}}
.contact-line{color:#4b5563}
.copy-qq{color:var(--brand);font-weight:700;border-bottom:1px dashed #c7d2fe;padding-bottom:1px}
.copy-qq:hover{color:#3730a3}