:root{
  --ink:#1c1b19; --paper:#ffffff; --muted:#6b6760; --gold:#bd8c3a;
  --gold-soft:#f4ecdb; --line:#e7e1d6; --bg-soft:#faf7f1;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6}
h1,h2,h3{font-family:"Songti SC","SimSun",Georgia,serif;font-weight:700;letter-spacing:.02em}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
.t-en{color:var(--muted);font-family:Georgia,serif;font-style:italic;font-weight:400}
body.lang-en .t-zh{display:none}
body.lang-zh .t-en{display:none}

/* NAV */
header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:baseline;gap:8px;font-family:"Songti SC",serif;font-size:22px;font-weight:700}
.logo .en{font-size:13px;color:var(--gold);letter-spacing:.18em}
nav.menu{display:flex;gap:26px;font-size:15px}
nav.menu a{padding:6px 2px;border-bottom:2px solid transparent;transition:.2s}
nav.menu a:hover{border-color:var(--gold);color:var(--gold)}
.nav-right{display:flex;align-items:center;gap:16px;font-size:14px}
.lang button{background:none;border:1px solid var(--line);border-radius:20px;padding:4px 12px;cursor:pointer;font-size:13px;color:var(--muted)}
.lang button.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.cart,.admin{display:flex;align-items:center;gap:6px}
.cart::before{content:"🛒"}
.admin::before{content:"⚙"}
.menu-btn{display:none;background:none;border:none;font-size:26px;line-height:1;cursor:pointer;color:var(--ink);padding:4px}

/* PAGE HEAD */
.page-head{padding:56px 0 10px}
.page-head h1{font-size:42px}
.page-head .t-en{font-size:18px;margin-left:10px}
.page-head p{color:var(--muted);margin-top:10px;max-width:680px}

/* FILTER CHIPS */
.filter{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0 30px}
.chip{padding:8px 18px;border:1px solid var(--line);border-radius:30px;font-size:14px;cursor:pointer;color:var(--muted);background:#fff;transition:.2s}
.chip:hover{border-color:var(--gold);color:var(--gold)}
.chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* CATEGORY TILES */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat{position:relative;height:240px;border-radius:18px;overflow:hidden;display:flex;align-items:flex-end;padding:22px;color:#fff;border:1px solid var(--line)}
.cat .ph{position:absolute;inset:0;opacity:.92}
.cat:nth-child(1) .ph{background:linear-gradient(135deg,#2b3a4a,#4a6b86)}
.cat:nth-child(2) .ph{background:linear-gradient(135deg,#6b4a3a,#a9764e)}
.cat:nth-child(3) .ph{background:linear-gradient(135deg,#3a4a3f,#6b8a72)}
.cat h3{position:relative;font-size:24px;z-index:2}
.cat .t-en{position:relative;z-index:2;font-size:14px;opacity:.85}
.cat span.tag{position:absolute;top:16px;left:16px;z-index:2;background:rgba(255,255,255,.2);padding:4px 12px;border-radius:20px;font-size:12px;backdrop-filter:blur(4px)}

/* GRID + CARD */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.08)}
.card .thumb{height:200px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;letter-spacing:.1em}
.th1{background:linear-gradient(135deg,#34495e,#5d8aa8)}
.th2{background:linear-gradient(135deg,#7a5a44,#c08a5a)}
.th3{background:linear-gradient(135deg,#44523f,#7e9a82)}
.th4{background:linear-gradient(135deg,#4a4452,#8a7a9a)}
.th5{background:linear-gradient(135deg,#3f4a52,#6f8a98)}
.th6{background:linear-gradient(135deg,#524a3f,#9a8a6f)}
.th7{background:linear-gradient(135deg,#5a4a52,#a87a8a)}
.card .body{padding:16px 18px}
.card .kind{font-size:12px;color:var(--gold);letter-spacing:.08em}
.card h3{font-size:18px;margin:6px 0 4px}
.card .t-en{font-size:13px}
.card .price{margin-top:12px;font-weight:700;font-size:18px}
.card .price small{font-weight:400;color:var(--muted);font-size:12px;margin-left:6px}

/* ABOUT */
.about-inner{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:center}
.avatar{width:280px;height:280px;border-radius:20px;background:linear-gradient(135deg,var(--gold-soft),#fff);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px}
.about h2{font-size:30px;margin-bottom:14px}
.about p{color:var(--muted);margin-bottom:12px}
.skills{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.skills span{border:1px solid var(--line);border-radius:20px;padding:6px 14px;font-size:13px;color:var(--muted)}

/* PRODUCT DETAIL */
.breadcrumb{font-size:13px;color:var(--muted);margin:24px 0 18px}
.breadcrumb a{color:var(--muted)}
.product{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.gallery .main{height:440px;border-radius:16px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;letter-spacing:.1em}
.gallery .thumbs{display:flex;gap:10px;margin-top:12px}
.gallery .thumbs div{width:84px;height:84px;border-radius:10px;cursor:pointer;border:1px solid var(--line)}
.pinfo h1{font-size:34px;margin-bottom:8px}
.pinfo .kind{color:var(--gold);font-size:13px;letter-spacing:.08em}
.pinfo .price{font-size:28px;font-weight:700;margin:18px 0}
.pinfo .price small{font-weight:400;color:var(--muted);font-size:14px;margin-left:8px}
.pinfo .desc{color:var(--muted);margin-bottom:22px}
.pinfo .actions{display:flex;gap:12px;margin-bottom:8px}
.btn{display:inline-block;padding:13px 28px;border-radius:30px;font-size:15px;font-weight:600;transition:.2s;cursor:pointer;border:none}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary:hover{background:var(--gold)}
.btn.buy{background:var(--gold);color:#fff}
.btn.buy:hover{background:var(--ink)}
.btn.ghost{border:1px solid var(--ink);color:var(--ink);background:none}
.btn.ghost:hover{background:var(--ink);color:#fff}
.note{font-size:13px;color:var(--muted);margin:10px 0 0}
.spec{margin-top:30px;border-top:1px solid var(--line);padding-top:20px}
.spec h3{font-size:18px;margin-bottom:12px}
.spec ul{list-style:none}
.spec li{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--muted)}
.spec li b{color:var(--ink);font-weight:600}
.related{margin-top:64px}
.related h2{font-size:26px;margin-bottom:22px}

/* CONTACT */
.kf-box{border:1px solid var(--line);border-radius:16px;padding:26px;background:var(--bg-soft);margin-bottom:34px}
.kf-box .big{font-size:19px;font-weight:600;margin-bottom:8px}
.kf-box p{color:var(--muted);font-size:14px;margin-bottom:14px}
.contact-form{max-width:560px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;margin-bottom:6px;color:var(--ink)}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit}
.field textarea{height:120px;resize:vertical}
.plist{display:flex;gap:16px;flex-wrap:wrap;margin-top:18px}
.plink{border:1px solid var(--line);border-radius:12px;padding:14px 20px;color:var(--muted);font-size:14px;min-width:160px;text-align:center}
.plink.empty{border-style:dashed;opacity:.7}

/* FOOTER */
footer{background:var(--ink);color:#e9e4d8;padding:48px 0 30px;margin-top:64px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
footer h4{font-family:"Songti SC",serif;font-size:17px;margin-bottom:12px;color:#fff}
footer a{color:#c9c2b4;display:block;font-size:14px;margin:6px 0}
footer .bottom{margin-top:30px;border-top:1px solid #3a3833;padding-top:18px;font-size:13px;color:#9a948a}

/* FLOATING */
.fab{position:fixed;right:22px;bottom:22px;z-index:60;width:56px;height:56px;border-radius:50%;background:var(--gold);color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:0 8px 24px rgba(189,140,58,.4);cursor:pointer}
.fab:hover{transform:scale(1.06)}
.totop{position:fixed;right:22px;bottom:90px;z-index:60;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--ink);display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;opacity:0;transition:.3s}
.totop.show{opacity:1}

.sec{padding:40px 0}
@media(max-width:860px){
  .menu-btn{display:block}
  nav.menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:6px 24px 14px;border-bottom:1px solid var(--line);box-shadow:0 10px 24px rgba(0,0,0,.06)}
  nav.menu.open{display:flex}
  nav.menu a{padding:13px 0;border-bottom:1px solid var(--line);width:100%}
  .cats,.grid{grid-template-columns:1fr 1fr}
  .about-inner{grid-template-columns:1fr}
  .product{grid-template-columns:1fr;gap:24px}
  .gallery .main{height:320px}
  .page-head h1{font-size:32px}
}
@media(max-width:560px){
  .cats,.grid{grid-template-columns:1fr}
  .page-head h1{font-size:28px}
  .sec-head h2,.related h2{font-size:24px}
  .nav-right{font-size:12px;gap:10px}
  footer .cols{grid-template-columns:1fr}
  .wrap{padding:0 16px}
}