/* Ronkwu Shop */
:root{
  --ink:#1c1917;
  --muted:#6b6258;
  --accent:#c2410c;
  --accent2:#0f766e;
  --bg:#f7f3ec;
  --card:#fff;
  --line:#e6dfd4;
  --sans:"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:1140px;margin:0 auto;padding:0 22px}
.topbar{background:var(--ink);color:#f3f0ea;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;gap:16px;align-items:center;min-height:34px;flex-wrap:wrap;padding:6px 22px}
.topbar a{color:#fde7d3;text-decoration:underline;text-underline-offset:2px}
header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:74px}
.logo{font-family:var(--serif);font-weight:700;font-size:24px;letter-spacing:.3px}
.logo span{color:var(--accent)}
h1,h2,h3,.page-head h1{font-family:var(--serif);font-weight:650;letter-spacing:-.02em;line-height:1.2}
nav a{margin-left:22px;font-size:15px;color:#44403c}
nav a:hover,nav a.active{color:var(--accent)}
nav a.dealer{color:var(--accent2)}
.cart{margin-left:22px;border:1px solid var(--line);border-radius:20px;padding:6px 14px;font-size:14px}
.menu{display:none;position:relative}
.menu summary{list-style:none;cursor:pointer;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:14px;background:#fff}
.menu summary::-webkit-details-marker{display:none}
.menu nav{position:absolute;right:0;top:42px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 0;min-width:200px;box-shadow:0 12px 30px rgba(0,0,0,.08)}
.menu nav a{display:block;margin:0;padding:8px 16px}
.hero{background:linear-gradient(120deg,#fde7d3 0%,#f6efe4 52%,#d9efe9 100%);padding:84px 0}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:48px;line-height:1.12;margin-bottom:16px}
.hero p{font-size:18px;color:#4b5563;margin-bottom:28px;max-width:34em}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 24px;border-radius:8px;font-weight:600;border:0;cursor:pointer;font:inherit}
.btn:hover{filter:brightness(1.05)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);margin-left:10px}
.btn.wide{width:100%;text-align:center}
.btn[disabled]{opacity:.6;cursor:not-allowed}
.hero-art{aspect-ratio:1/1;border-radius:24px;background:#fff;box-shadow:0 20px 50px rgba(0,0,0,.08);display:flex;align-items:center;justify-content:center}
section{padding:68px 0}
h2{font-size:32px;margin-bottom:8px}
.sub{color:var(--muted);margin-bottom:28px}
.perks{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;border-bottom:1px solid var(--line);padding:28px 0}
.perk{font-size:14px;color:#57534e}
.perk b{display:block;color:var(--ink);font-size:15px;font-family:var(--serif)}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,0,0,.07)}
.thumb{aspect-ratio:4/3;display:flex;align-items:center;justify-content:center}
.card .info{padding:14px 16px 18px}
.card h3{font-size:17px;margin-bottom:4px;font-family:var(--serif)}
.cat{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.8px}
.price{font-weight:700;color:var(--accent);margin-top:6px}
.price s{color:#9ca3af;font-weight:400;margin-left:6px;font-size:14px}
.tag{display:inline-block;background:var(--accent2);color:#fff;font-size:11px;padding:2px 8px;border-radius:10px;margin-left:6px;vertical-align:middle;font-family:var(--sans);font-weight:600}
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.catbox{border-radius:16px;padding:28px;min-height:156px;display:flex;flex-direction:column;justify-content:flex-end}
.catbox h3{font-size:22px}
.catbox p{color:#4b5563;font-size:14px}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.filters button,.filters a{border:1px solid var(--line);background:#fff;border-radius:20px;padding:6px 16px;font-size:14px;cursor:pointer;font:inherit;color:inherit}
.filters .on,.filters a.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:48px 0 40px}
.page-head h1{font-size:38px}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:10px}
.crumbs a:hover{color:var(--accent)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.two.wide-left{grid-template-columns:1.2fr .8fr}
.prose p{margin-bottom:16px;color:#44403c}
.prose h2{margin-top:8px}
.prose ul,.prose ol{margin:0 0 16px 1.2em;color:#44403c}
.prose li{margin:6px 0}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;text-align:center}
.stat b{font-size:28px;color:var(--accent);display:block;font-family:var(--serif)}
form label{display:block;font-size:14px;font-weight:600;margin:14px 0 6px}
form input,form textarea,form select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
form button{margin-top:18px}
.box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}
.news{background:var(--ink);color:#f9fafb;border-radius:18px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.news input{padding:12px;border-radius:8px;border:0;width:260px;font:inherit}
.news-list{display:grid;gap:18px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 28px;display:block}
.news-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.06)}
.news-card .meta{color:var(--muted);font-size:13px;margin-bottom:8px}
.news-card h3{font-size:24px;margin-bottom:8px}
.news-body{max-width:720px}
.news-body p{margin-bottom:16px}
.news-body h2{font-size:24px;margin:28px 0 10px}
.product{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.product-art{background:#fff;border:1px solid var(--line);border-radius:20px;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center}
.product-buy .sku{font-size:13px;color:var(--muted);margin-bottom:8px}
.product-buy h1{font-size:34px;margin-bottom:10px}
.stock{display:inline-block;font-size:13px;color:var(--accent2);background:#e8f5f2;border-radius:999px;padding:4px 10px;margin:10px 0 16px}
.qty-row{display:flex;gap:10px;align-items:center;margin:18px 0}
.qty-row input{width:80px}
.specs{width:100%;border-collapse:collapse;margin-top:22px;font-size:15px}
.specs th,.specs td{text-align:left;padding:10px 0;border-bottom:1px solid var(--line);vertical-align:top}
.specs th{color:var(--muted);font-weight:500;width:34%}
.related{margin-top:10px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600;font-family:var(--serif);font-size:18px}
.faq details p{margin-top:10px;color:#44403c}
.alert{border-radius:10px;padding:12px 14px;margin:12px 0 0;font-size:15px}
.alert.error{background:#fef2f2;color:#9f1239;border:1px solid #fecaca}
.muted{color:var(--muted)}
.login-wrap{max-width:460px;margin:0 auto}
.login-brand{text-align:center;margin-bottom:18px}
.login-brand p{color:var(--muted)}
.helper{font-size:13px;color:var(--muted);margin-top:14px}
.center{text-align:center}
.addr{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;margin-top:16px}
footer{background:#14110e;color:#a8a29e;padding:52px 0 24px;margin-top:40px;font-size:14px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
footer h4{color:#fff;margin-bottom:10px;font-family:var(--serif);font-size:16px}
footer li{list-style:none;margin:6px 0}
footer a:hover{color:#fff}
footer .copy{border-top:1px solid #292524;padding-top:18px;text-align:center}
.foot-meta{margin-top:12px;font-size:13px;color:#78716c}
.empty{background:#fff;border:1px solid var(--line);border-radius:16px;padding:48px;text-align:center}
@media(max-width:900px){
  .hero .wrap,.two,.product,footer .cols{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(2,1fr)}
  .perks,.cats,.stats{grid-template-columns:1fr 1fr}
  .hero h1{font-size:34px}
  .news{flex-direction:column;align-items:flex-start}
  .main-nav{display:none}
  .menu{display:block}
  header .wrap{min-height:64px}
}
@media(max-width:560px){
  .grid,.perks,.cats,.stats{grid-template-columns:1fr}
  .hero{padding:48px 0}
}

.news .btn.ghost{margin-left:10px}
.foot-meta a{color:#d6d3d1;text-decoration:underline;text-underline-offset:2px}
.foot-meta a:hover{color:#fff}
.helper a{color:var(--accent2);text-decoration:underline;text-underline-offset:2px}
.empty .sub{max-width:38em;margin-left:auto;margin-right:auto}
.addr p{margin-bottom:10px}
.product-buy .helper{margin-top:8px;max-width:36em}
header .wrap{gap:16px}