:root{
  --bg:#0a0b0d; --bg2:#0f1114; --panel:#14161b; --panel2:#1a1d23;
  --gold:#cba36a; --gold2:#e7cd96; --gold-soft:rgba(203,163,106,.16);
  --text:#edeef0; --muted:#9a9ca3; --line:rgba(255,255,255,.08);
  --line2:rgba(255,255,255,.14);
  --green:#5fd08a; --red:#ff6b6b;
  --shadow:0 24px 60px -20px rgba(0,0,0,.7);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",
    "Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--text); background:var(--bg);
  -webkit-font-smoothing:antialiased; line-height:1.6;
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(203,163,106,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(80,110,170,.10), transparent 55%);
  min-height:100vh;
}
::selection{background:var(--gold-soft)}
a{color:inherit; text-decoration:none}
/* ---------- 顶部导航 ---------- */
header.nav{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 30px; gap:16px;
  backdrop-filter:blur(14px);
  background:linear-gradient(180deg, rgba(10,11,13,.82), rgba(10,11,13,.5));
  border-bottom:1px solid var(--line);
}
.brand{display:flex; align-items:center; gap:13px}
.brand .mark{
  width:40px;height:40px;border-radius:11px;
  background:conic-gradient(from 200deg,#e7cd96,#cba36a,#8a6e42,#e7cd96);
  display:grid;place-items:center; color:#1a140a; font-weight:800; font-size:19px;
  box-shadow:0 6px 18px -6px rgba(203,163,106,.6);
}
.brand b{font-size:18px; letter-spacing:3px; font-weight:700}
.brand span{display:block; font-size:11px; color:var(--muted); letter-spacing:4px}
.nav-actions{display:flex; align-items:center; gap:10px}
.btn{
  border:1px solid var(--line2); background:transparent; color:var(--text);
  padding:9px 16px; border-radius:11px; cursor:pointer; font-size:13px;
  transition:.2s; display:inline-flex; align-items:center; gap:7px;
}
.btn:hover{border-color:var(--gold); color:var(--gold2); background:var(--gold-soft)}
.btn.gold{
  background:linear-gradient(135deg,var(--gold2),var(--gold));
  color:#1a140a; border:none; font-weight:700;
}
.btn.gold:hover{filter:brightness(1.06)}
.btn.danger{border-color:rgba(255,107,107,.4); color:#ff9b9b}
.btn.danger:hover{background:rgba(255,107,107,.12); border-color:var(--red); color:#ffb3b3}
.btn:disabled{opacity:.55; cursor:default}
.btn.sm{padding:6px 11px; font-size:12px; border-radius:9px}
/* ---------- Hero ---------- */
.hero{max-width:1000px; margin:54px auto 28px; padding:0 24px; text-align:center}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-size:12px; letter-spacing:3px;
  color:var(--gold2); border:1px solid var(--line2); padding:6px 14px; border-radius:999px;
  background:var(--gold-soft);
}
.hero h1{font-size:clamp(30px,5vw,52px); margin:20px 0 10px; line-height:1.15; font-weight:800; letter-spacing:1px}
.hero h1 .g{background:linear-gradient(120deg,#e7cd96,#cba36a 50%,#fff 90%); -webkit-background-clip:text; background-clip:text; color:transparent}
.hero p{color:var(--muted); font-size:16px; margin:0 auto; max-width:620px}
/* ---------- 搜索框 ---------- */
.search-wrap{max-width:760px; margin:30px auto 0; position:relative}
.searchbar{
  display:flex; align-items:center; gap:12px;
  background:linear-gradient(180deg,var(--panel2),var(--panel));
  border:1px solid var(--line2); border-radius:16px; padding:8px 8px 8px 18px;
  box-shadow:var(--shadow); transition:.25s;
}
.searchbar:focus-within{border-color:var(--gold); box-shadow:0 0 0 4px var(--gold-soft),var(--shadow)}
.searchbar svg.spark{flex:none; color:var(--gold2)}
.searchbar input{flex:1; background:transparent; border:none; outline:none; color:var(--text); font-size:16px; padding:10px 0}
.searchbar input::placeholder{color:#6c6e74}
.search-go{
  border:none; cursor:pointer; font-weight:700; font-size:14px; color:#1a140a;
  background:linear-gradient(135deg,var(--gold2),var(--gold));
  padding:12px 22px; border-radius:11px; display:flex; align-items:center; gap:8px;
  transition:.2s; white-space:nowrap;
}
.search-go:hover{filter:brightness(1.07)}
.search-go:disabled{opacity:.6; cursor:default}
/* 搜索模式切换（普通 / AI 各模型）——访客自选，普通免费省钱 */
.modeswitch{display:flex; flex-wrap:wrap; gap:8px; justify-content:center; align-items:center; margin-top:16px}
.modeswitch .seg{display:inline-flex; gap:4px; padding:4px; border:1px solid var(--line2); border-radius:12px; background:rgba(255,255,255,.03)}
.modeswitch .mode{border:none; background:transparent; color:var(--muted); font-size:13px; padding:8px 14px; border-radius:9px; cursor:pointer; transition:.18s; white-space:nowrap; display:inline-flex; align-items:center; gap:6px}
.modeswitch .mode:hover{color:var(--text)}
.modeswitch .mode.active{color:#1a140a; font-weight:700; background:linear-gradient(135deg,var(--gold2),var(--gold))}
.modeswitch .mode.free.active{background:linear-gradient(135deg,#7fe0a6,#4fbf86); color:#06241a}
.modeswitch .hint{font-size:12px; color:var(--muted)}
/* 已选车型状态条 */
.carbar{display:flex; justify-content:center; margin-top:14px}
.car-chip{display:inline-flex; align-items:center; gap:10px; font-size:13px; padding:8px 9px 8px 16px; border-radius:999px;
  border:1px solid var(--gold); background:linear-gradient(180deg,rgba(203,163,106,.14),rgba(203,163,106,.04)); color:var(--text)}
.car-chip b{color:var(--gold2)}
.car-chip small{color:var(--muted)}
.car-chip a{color:var(--gold2); font-size:12px; text-decoration:none; border-bottom:1px dashed var(--gold)}
.car-chip button{width:24px;height:24px;border-radius:50%;border:1px solid var(--line2);background:transparent;color:var(--muted);cursor:pointer;font-size:12px;line-height:1;transition:.18s}
.car-chip button:hover{border-color:var(--red);color:#ffb3b3}
.car-link{font-size:13px; color:var(--muted); text-decoration:none; border:1px dashed var(--line2); border-radius:999px; padding:8px 16px; transition:.2s}
.car-link:hover{color:var(--gold2); border-color:var(--gold); background:var(--gold-soft)}
.chips{display:flex; flex-wrap:wrap; gap:9px; justify-content:center; margin-top:18px}
.chip{font-size:13px; color:var(--muted); border:1px solid var(--line); border-radius:999px; padding:7px 14px; cursor:pointer; transition:.2s; background:rgba(255,255,255,.02)}
.chip:hover{color:var(--gold2); border-color:var(--gold); background:var(--gold-soft)}
.chip b{color:var(--gold2); font-weight:600}
/* ---------- AI 结果说明 ---------- */
.ai-banner{max-width:1160px; margin:26px auto 0; padding:0 24px; display:none}
.ai-banner .inner{display:flex; align-items:flex-start; gap:13px; padding:15px 18px; border:1px solid var(--line2); border-radius:14px; background:linear-gradient(180deg,rgba(203,163,106,.08),rgba(203,163,106,.02))}
.ai-banner .dot{flex:none;width:30px;height:30px;border-radius:9px;display:grid;place-items:center; background:var(--gold-soft); color:var(--gold2)}
.ai-banner .txt{font-size:14px; color:var(--text)}
.ai-banner .txt small{color:var(--muted)}
/* ---------- 工具条 ---------- */
.toolbar{max-width:1160px; margin:30px auto 6px; padding:0 24px; display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap}
.cats{display:flex; gap:8px; flex-wrap:wrap}
.cat{font-size:13px; padding:8px 15px; border-radius:10px; cursor:pointer; transition:.2s; border:1px solid var(--line); color:var(--muted); background:rgba(255,255,255,.02)}
.cat:hover{color:var(--text); border-color:var(--line2)}
.cat.active{color:#1a140a; font-weight:700; border-color:transparent; background:linear-gradient(135deg,var(--gold2),var(--gold))}
.count{font-size:13px; color:var(--muted)} .count b{color:var(--gold2)}
/* ---------- 产品网格 ---------- */
.grid{max-width:1160px; margin:14px auto 80px; padding:0 24px; display:grid; grid-template-columns:repeat(auto-fill,minmax(265px,1fr)); gap:22px}
.card{background:linear-gradient(180deg,var(--panel2),var(--panel)); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; display:flex; flex-direction:column; transition:.28s cubic-bezier(.2,.7,.3,1); opacity:0; transform:translateY(14px); animation:rise .5s forwards}
@keyframes rise{to{opacity:1; transform:none}}
.card:hover{border-color:var(--gold); transform:translateY(-5px); box-shadow:var(--shadow)}
.thumb{height:170px; position:relative; display:grid; place-items:center; overflow:hidden}
.thumb .ico{width:78px;height:78px; filter:drop-shadow(0 8px 16px rgba(0,0,0,.4))}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb::after{content:""; position:absolute; inset:0; background:radial-gradient(120px 80px at 70% 20%, rgba(255,255,255,.18), transparent 70%); mix-blend-mode:screen; pointer-events:none}
.tag{position:absolute; top:12px; left:12px; font-size:11px; letter-spacing:1px; padding:5px 10px; border-radius:8px; background:rgba(0,0,0,.42); border:1px solid rgba(255,255,255,.18); backdrop-filter:blur(4px); color:#fff}
.statusdot{position:absolute; top:12px; right:12px; font-size:11px; padding:5px 10px; border-radius:8px; backdrop-filter:blur(4px)}
.statusdot.on{background:rgba(95,208,138,.18); color:#9fe8bd; border:1px solid rgba(95,208,138,.4)}
.statusdot.off{background:rgba(255,107,107,.16); color:#ffb3b3; border:1px solid rgba(255,107,107,.4)}
.card .body{padding:16px 17px 18px; display:flex; flex-direction:column; gap:9px; flex:1}
.card h3{margin:0; font-size:16.5px; font-weight:700; letter-spacing:.3px}
.card .desc{font-size:13px; color:var(--muted); margin:0; min-height:38px}
.reason{font-size:12.5px; color:var(--gold2); background:var(--gold-soft); border:1px solid var(--line2); border-radius:8px; padding:6px 10px; display:flex; gap:6px}
.colors{display:flex; gap:7px; align-items:center}
.colors .sw{width:16px;height:16px;border-radius:50%; border:1px solid rgba(255,255,255,.35)}
.colors small{color:var(--muted); font-size:11px}
.card .foot{display:flex; align-items:center; justify-content:space-between; margin-top:auto; padding-top:6px; gap:8px}
.price{font-size:20px; font-weight:800; color:var(--gold2)}
.price small{font-size:12px; color:var(--muted); font-weight:400}
.view3d{border:1px solid var(--gold); color:var(--gold2); background:transparent; padding:9px 13px; border-radius:10px; cursor:pointer; font-size:13px; font-weight:600; display:flex; align-items:center; gap:7px; transition:.2s}
.view3d:hover{background:linear-gradient(135deg,var(--gold2),var(--gold)); color:#1a140a; border-color:transparent}
.empty{grid-column:1/-1; text-align:center; color:var(--muted); padding:60px 20px}
/* ---------- 弹窗通用 ---------- */
.overlay{position:fixed; inset:0; z-index:60; display:none; align-items:center; justify-content:center; background:rgba(4,5,7,.7); backdrop-filter:blur(7px); padding:20px}
.overlay.show{display:flex}
.modal{background:linear-gradient(180deg,var(--panel2),var(--panel)); border:1px solid var(--line2); border-radius:22px; width:100%; box-shadow:var(--shadow); max-height:92vh; overflow:hidden; display:flex; flex-direction:column}
.modal .mhead{display:flex; align-items:center; justify-content:space-between; padding:18px 22px; border-bottom:1px solid var(--line)}
.modal .mhead h2{margin:0; font-size:18px; letter-spacing:.5px}
.modal .mhead h2 small{display:block; font-size:12px; color:var(--muted); font-weight:400; letter-spacing:2px}
.x{width:36px;height:36px;border-radius:10px; border:1px solid var(--line2); background:transparent; color:var(--text); cursor:pointer; font-size:18px; line-height:1; transition:.2s}
.x:hover{border-color:var(--gold); color:var(--gold2)}
/* ---------- 3D 弹窗 ---------- */
.modal.viewer{max-width:1040px}
.viewer .vbody{display:grid; grid-template-columns:1fr 290px; min-height:0}
.stage{position:relative; min-height:430px; background:radial-gradient(80% 80% at 50% 25%, #20242c, #0c0d10 75%)}
.stage canvas{display:block; width:100%; height:100%}
.stage .hint{position:absolute; left:16px; bottom:14px; font-size:12px; color:var(--muted); background:rgba(0,0,0,.35); padding:6px 11px; border-radius:8px; border:1px solid var(--line)}
.stage .badge3d{position:absolute; top:14px; left:16px; font-size:11px; letter-spacing:2px; color:var(--gold2); border:1px solid var(--line2); padding:5px 11px; border-radius:8px; background:rgba(0,0,0,.35)}
.stage .loading{position:absolute; inset:0; display:grid; place-items:center; color:var(--muted); font-size:14px}
.vside{padding:20px; border-left:1px solid var(--line); overflow:auto; display:flex; flex-direction:column; gap:18px}
.vside h4{margin:0 0 2px; font-size:15px}
.vside .pdesc{font-size:13px; color:var(--muted); margin:0}
.vprice{font-size:24px; font-weight:800; color:var(--gold2)}
.swatch-group label{font-size:12px; color:var(--muted); letter-spacing:1px; display:block; margin-bottom:9px}
.swatches{display:flex; flex-wrap:wrap; gap:10px}
.swatches button{width:34px;height:34px;border-radius:50%; cursor:pointer; border:2px solid transparent; box-shadow:0 0 0 1px rgba(255,255,255,.25); transition:.15s; position:relative}
.swatches button.active{border-color:var(--gold2); box-shadow:0 0 0 2px var(--gold2),0 0 14px var(--gold-soft)}
.swatches button:hover{transform:scale(1.08)}
.vctrls{display:flex; gap:9px; flex-wrap:wrap}
.vctrls .btn{flex:1; justify-content:center; font-size:12.5px; padding:9px 10px}
/* ---------- 表单字段 ---------- */
.field label{font-size:13px; color:var(--muted); display:block; margin-bottom:7px}
.field input,.field select,.field textarea{width:100%; background:var(--bg2); border:1px solid var(--line2); border-radius:11px; padding:11px 13px; color:var(--text); font-size:14px; outline:none; font-family:inherit}
.field textarea{resize:vertical; min-height:70px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--gold)}
.toggle-row{display:flex; align-items:center; justify-content:space-between; gap:12px; border:1px solid var(--line); border-radius:12px; padding:13px 15px; background:rgba(255,255,255,.02)}
.toggle-row .t-txt b{font-size:14px} .toggle-row .t-txt small{display:block; color:var(--muted); font-size:12px}
.switch{position:relative; width:48px;height:27px;flex:none}
.switch input{display:none}
.switch span{position:absolute; inset:0; border-radius:999px; background:#33363d; transition:.2s; cursor:pointer}
.switch span::after{content:""; position:absolute; width:21px;height:21px; border-radius:50%; background:#fff; top:3px; left:3px; transition:.2s}
.switch input:checked + span{background:linear-gradient(135deg,var(--gold2),var(--gold))}
.switch input:checked + span::after{left:24px}
.note{font-size:12px; color:var(--muted); line-height:1.7}
.note code{color:var(--gold2); background:var(--gold-soft); padding:1px 6px; border-radius:5px}
/* ---------- 商品详情：图片 / 3D 上车 / 3D 模型 多视图 ---------- */
.vstage{position:relative; min-height:440px; overflow:hidden; background:radial-gradient(80% 80% at 50% 25%, #20242c, #0c0d10 75%)}
.vtabs{position:absolute; top:12px; left:50%; transform:translateX(-50%); z-index:6; display:flex; gap:4px; padding:4px; border-radius:12px; background:rgba(0,0,0,.45); border:1px solid var(--line2); backdrop-filter:blur(6px)}
.vtabs button{border:none; background:transparent; color:var(--muted); font-size:12.5px; padding:7px 14px; border-radius:9px; cursor:pointer; transition:.15s; white-space:nowrap}
.vtabs button:hover{color:var(--text)}
.vtabs button.active{background:linear-gradient(135deg,var(--gold2),var(--gold)); color:#1a140a; font-weight:700}
.vlayer{position:absolute; inset:0}
.vlayer.hidden{display:none}
.vlayer .stage{position:absolute; inset:0; min-height:0}
.imgbox{position:absolute; inset:0; display:grid; place-items:center; padding:34px}
.imgbox img{max-width:100%; max-height:100%; object-fit:contain; border-radius:14px; box-shadow:var(--shadow)}
.imgbox .ph{width:120px;height:120px;opacity:.85; filter:drop-shadow(0 10px 22px rgba(0,0,0,.5))}
.imgbox .phtip{position:absolute; bottom:18px; color:var(--muted); font-size:13px}
/* 媒体画廊（多图 + 视频） */
.gal-main{position:absolute; inset:0 0 80px 0; display:grid; place-items:center; padding:26px}
.layer-solo .gal-main{inset:0}
.gal-main img,.gal-main video{max-width:100%; max-height:100%; object-fit:contain; border-radius:13px; box-shadow:var(--shadow)}
.gal-main .ph{width:120px;height:120px;opacity:.85}
.gal-main .phtip{position:absolute; bottom:16px; left:0; right:0; text-align:center; color:var(--muted); font-size:13px}
.gal-thumbs{position:absolute; left:0; right:0; bottom:0; height:80px; display:flex; gap:9px; padding:12px 14px; overflow-x:auto; background:rgba(0,0,0,.38); border-top:1px solid var(--line); backdrop-filter:blur(6px)}
.layer-solo .gal-thumbs{display:none}
.gt{width:56px;height:56px;flex:none;border-radius:10px;overflow:hidden;border:2px solid transparent;cursor:pointer;position:relative;background:#111;padding:0}
.gt img,.gt video{width:100%;height:100%;object-fit:cover;pointer-events:none}
.gt.active{border-color:var(--gold)}
.gt .play{position:absolute;inset:0;display:grid;place-items:center;color:#fff;background:rgba(0,0,0,.35);font-size:15px;pointer-events:none}
/* 3D 模型防护：水印 + 禁选 */
.wm{position:absolute; inset:0; pointer-events:none; z-index:5; overflow:hidden; opacity:.5}
.wm span{position:absolute; color:rgba(255,255,255,.13); font-size:13px; letter-spacing:1px; white-space:nowrap; transform:rotate(-22deg); user-select:none}
.protect{user-select:none; -webkit-user-select:none}
.model-note{position:absolute; left:14px; bottom:14px; z-index:6; font-size:11px; color:var(--muted); background:rgba(0,0,0,.4); border:1px solid var(--line); padding:5px 10px; border-radius:8px}
/* 数量步进 */
.qty{display:inline-flex; align-items:center; border:1px solid var(--line2); border-radius:10px; overflow:hidden}
.qty button{width:36px;height:36px;border:none;background:rgba(255,255,255,.03);color:var(--text);font-size:18px;cursor:pointer;transition:.15s}
.qty button:hover{background:var(--gold-soft);color:var(--gold2)}
.qty .qn{min-width:38px;text-align:center;font-size:15px;font-weight:600}
.qty-row{display:flex; align-items:center; justify-content:space-between; gap:12px}
.qty-row label{font-size:12px;color:var(--muted);letter-spacing:1px}
/* ---------- 购物车 / 结算 ---------- */
.cart-items{display:flex; flex-direction:column; max-height:48vh; overflow:auto; margin:-4px 0}
.cart-item{display:flex; gap:13px; padding:14px 4px; border-bottom:1px solid var(--line)}
.cart-item:last-child{border-bottom:none}
.cart-item .ci-thumb{width:62px;height:62px;flex:none;border-radius:12px;display:grid;place-items:center;overflow:hidden}
.cart-item .ci-thumb img{width:100%;height:100%;object-fit:cover}
.cart-item .ci-thumb svg{width:34px;height:34px}
.cart-item .ci-main{flex:1; min-width:0}
.cart-item .ci-main b{font-size:14.5px; display:block}
.cart-item .ci-main small{color:var(--muted); font-size:12px}
.cart-item .ci-price{color:var(--gold2); font-weight:700; margin-top:4px; font-size:14px}
.cart-item .ci-side{display:flex; flex-direction:column; align-items:flex-end; justify-content:space-between; gap:6px}
.cart-rm{border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:13px;transition:.15s}
.cart-rm:hover{color:var(--red)}
.cart-empty{text-align:center; color:var(--muted); padding:48px 10px}
.cart-foot{border-top:1px solid var(--line2); padding-top:16px; margin-top:6px; display:flex; flex-direction:column; gap:13px}
.cart-total{display:flex; align-items:baseline; justify-content:space-between}
.cart-total .tt{font-size:13px;color:var(--muted)} .cart-total .tv{font-size:26px;font-weight:800;color:var(--gold2)}
.order-ok{text-align:center; padding:14px 6px}
.order-ok .big{font-size:46px; line-height:1}
.order-ok .no{font-size:20px; font-weight:800; color:var(--gold2); letter-spacing:1px; margin:10px 0 4px}
.cart-badge{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:#1a140a;color:var(--gold2);font-size:11px;font-weight:800;margin-left:2px}
/* ---------- Toast / 进度条 ---------- */
.toast{position:fixed; bottom:26px; left:50%; transform:translateX(-50%) translateY(20px); background:var(--panel2); border:1px solid var(--line2); color:var(--text); padding:12px 20px; border-radius:12px; font-size:14px; box-shadow:var(--shadow); opacity:0; transition:.3s; z-index:90; pointer-events:none; max-width:88vw}
.toast.show{opacity:1; transform:translateX(-50%) translateY(0)}
.toast.err{border-color:rgba(255,107,107,.5)}
.bar{position:fixed; top:0; left:0; height:2px; width:0; z-index:100; background:linear-gradient(90deg,var(--gold2),var(--gold)); transition:width .3s; opacity:0}
.bar.on{opacity:1}
.spin{animation:spin 1s linear infinite} @keyframes spin{to{transform:rotate(360deg)}}
footer{max-width:1160px; margin:0 auto; padding:24px; color:var(--muted); font-size:12px; border-top:1px solid var(--line); text-align:center}
@media(max-width:760px){
  .viewer .vbody{grid-template-columns:1fr} .vside{border-left:none; border-top:1px solid var(--line)}
  .stage{min-height:340px}
  .nav-actions .label{display:none}
}