/* =============================================================
   ARCOEM site styles
   配色由后台「网站设置 → 主题配色」注入到 :root 变量
   字体：默认走系统字体栈；如需 Barlow，把 woff2 放到
   public/assets/fonts/ 并取消下方 @font-face 注释
   ============================================================= */

/*
@font-face{font-family:'Barlow';src:url('../fonts/Barlow-Regular.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Barlow';src:url('../fonts/Barlow-Medium.woff2') format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Barlow Condensed';src:url('../fonts/BarlowCondensed-Medium.woff2') format('woff2');font-weight:500;font-display:swap}
*/

*{margin:0;padding:0;box-sizing:border-box}

:root{
  /* 浅色金属主题（2026-10-26 第 19 轮定稿）：--ink 是前景文字色，--paper 是页面底色 */
  --ink:#17140E;          /* 主文字 / 实心按钮底 */
  --ink-soft:#4A453C;     /* 次级文字 */
  --muted:#6E695C;        /* 弱化文字，对 --paper 约 5.0:1 */
  --line:#E4E0D5;         /* 细分割线 */
  --line-dark:#D2CDC0;    /* 强分割线 / 描边 */
  --paper:#F7F4EC;        /* 页面底色（暖米白） */
  --paper-2:#EFEBE0;      /* 区块底色 */
  --surface:#FFFFFF;      /* 卡片 / 浮层 */
  --input:#FCFBF7;        /* 输入框 */
  --on-solid:#FFFDF7;     /* 实心浅色按钮上的文字（深底按钮用 --ink） */
  --accent:#A9632C;       /* 暖铜，对 --paper-2 约 3.9:1（大字/图形 AA） */
  --accent-dim:rgba(169,99,44,.15);
  --sans:'Barlow',-apple-system,BlinkMacSystemFont,'Segoe UI','Helvetica Neue',Helvetica,Arial,'PingFang SC','Microsoft YaHei',sans-serif;
  --cond:'Barlow Condensed','Barlow',-apple-system,'Segoe UI',Helvetica,Arial,sans-serif;
  --mono:ui-monospace,'SF Mono',Menlo,Consolas,'Courier New',monospace;
  --pad:clamp(20px,4.4vw,84px);
  /* 打光渐变：图片区/浮层用的中性底衬 */
  --lit:radial-gradient(circle at 50% 44%, #FFFFFF 0%, #F3EFE5 52%, #E9E4D8 82%);
  --metal-line:linear-gradient(90deg,transparent,rgba(120,110,92,.22) 22%,rgba(23,20,14,.32) 50%,rgba(120,110,92,.22) 78%,transparent);
  /* 细颗粒：纸上的一层胶片噪点，避免大色块显得扁平 */
  --grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.06'/%3E%3C/svg%3E");
}


html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background-color:var(--paper);
  background-image:var(--grain);
  background-blend-mode:multiply;
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
.wrap{max-width:1560px;margin:0 auto;padding:0 var(--pad)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:block}

/* ---------- top bar ---------- */
.topbar{
  border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:36px;gap:16px;overflow:hidden;white-space:nowrap}
.topbar .wrap>span:first-child{overflow:hidden;text-overflow:ellipsis;min-width:0}
.topbar b{color:var(--ink);font-weight:500}
.topbar-r{display:flex;gap:22px}

/* ---------- header ---------- */
header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,236,.85);
  -webkit-backdrop-filter:blur(16px) saturate(1.4);
  backdrop-filter:blur(16px) saturate(1.4);
  border-bottom:1px solid var(--line);
  transition:border-color .25s,background .3s;
}
header.scrolled{background:rgba(247,244,236,.96);border-bottom-color:var(--line-dark)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;gap:30px;position:relative}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{width:30px;height:30px;flex-shrink:0;color:var(--ink)}
.logo-mark svg{display:block}
.logo-txt{font-family:var(--cond);font-size:23px;letter-spacing:.16em;font-weight:500;line-height:1}
.logo-txt small{display:block;font-family:var(--mono);font-size:8px;letter-spacing:.3em;color:var(--muted);margin-top:3px}
.menu{display:flex;gap:30px;align-items:center;font-size:14px;list-style:none}
/* li 不设定位，让 mega 相对 .nav 铺满整个导航宽度 */
.menu>li{position:static}
.menu>li>a{position:relative;display:flex;align-items:center;gap:5px;padding:8px 0;color:var(--ink-soft);transition:color .2s}
.menu>li>a:hover{color:var(--ink)}
.menu>li>a::after{content:"";position:absolute;left:0;bottom:2px;width:0;height:1px;background:var(--accent);transition:width .28s}
.menu>li:hover>a::after{width:100%}
.caret{width:5px;height:5px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.6}

/* 品牌 + 车型 mega 菜单 */
.mega{
  position:absolute;top:100%;left:0;right:0;background:rgba(255,253,247,.98);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--line-dark);
  padding:30px var(--pad) 0;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:.24s;box-shadow:0 34px 60px -30px rgba(23,20,14,.28);
}
.menu>li:hover .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-in{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(14px,1.8vw,28px)}
.mega-brand{
  display:flex;align-items:baseline;justify-content:space-between;gap:8px;
  font-family:var(--cond);font-size:19px;letter-spacing:.01em;line-height:1.1;
  padding-bottom:10px;margin-bottom:10px;border-bottom:1px solid var(--line-dark);transition:color .2s;
}
.mega-brand:hover{color:var(--accent)}
.mega-brand span{font-family:var(--mono);font-size:9.5px;letter-spacing:.08em;color:var(--muted)}
.mega-models{display:flex;flex-direction:column}
.mega-models a{font-size:13px;color:var(--ink-soft);padding:5px 0;transition:color .18s,padding-left .18s}
.mega-models a:hover{color:var(--accent);padding-left:4px}
.mega-empty{font-size:12px;color:var(--muted)}
.mega-foot{
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  border-top:1px solid var(--line);margin-top:26px;padding:14px 0;
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
}
.mega-foot a{color:var(--ink);border-bottom:1px solid var(--line-dark);padding-bottom:2px}
.mega-foot a:hover{color:var(--accent);border-color:var(--accent)}
.nav-r{display:flex;align-items:center;gap:16px;flex-shrink:0}
.nav-search{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line-dark);color:var(--ink-soft);transition:.2s}
.nav-search:hover{background:var(--ink);color:var(--on-solid);border-color:var(--ink)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:44px;padding:0 22px;font-size:13.5px;letter-spacing:.02em;
  border:1px solid var(--ink);background:var(--ink);color:var(--on-solid);transition:.22s;
}
.btn:hover{background:var(--accent);border-color:var(--accent);color:var(--on-solid)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-dark)}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--on-solid)}
.btn .arw{font-size:15px;line-height:1}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line-dark);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger i{display:block;width:16px;height:1px;background:var(--ink);transition:.2s}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--paper);transform:translateX(100%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);overflow-y:auto;padding:24px var(--pad) 40px;
}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:26px}
.drawer-search{margin-bottom:22px}
.drawer-search input{
  width:100%;border:1px solid var(--line-dark);background:var(--input);color:var(--ink);padding:12px 14px;
  font-family:var(--sans);font-size:15px;outline:none;
}
.drawer nav a{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-size:18px}
.drawer-brand{border-bottom:1px solid var(--line)}
.drawer nav .drawer-brand-link{font-size:18px;padding:14px 0 10px;border-bottom:0}
.drawer-models{display:flex;flex-wrap:wrap;gap:6px;padding-bottom:14px}
.drawer nav .drawer-models a{display:inline-block;font-size:12px;padding:5px 9px;border:1px solid var(--line-dark);color:var(--ink-soft);font-family:var(--mono);letter-spacing:.04em}
.drawer nav .drawer-models a:hover{background:var(--ink);border-color:var(--ink);color:var(--on-solid)}
.drawer .btn{width:100%;margin-top:26px}

/* ---------- hero ---------- */
.hero{position:relative;border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.02fr 1fr;gap:0;padding-top:0;padding-bottom:0;align-items:stretch}
.hero-l{padding:clamp(48px,7vw,92px) 0 clamp(40px,5vw,72px);padding-right:clamp(20px,3vw,56px)}
.hero h1{font-size:clamp(38px,4.9vw,74px);line-height:.96;letter-spacing:-.028em;font-weight:500;margin:26px 0 0}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p.lead{margin-top:26px;max-width:44ch;font-size:15.5px;line-height:1.65;color:var(--ink-soft)}
.hero-cta{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.hero-spec{display:grid;grid-template-columns:repeat(4,1fr);margin-top:clamp(36px,5vw,64px);border-top:1px solid var(--line);padding-top:18px}
.hero-spec div{border-right:1px solid var(--line);padding-right:10px}
.hero-spec div:not(:first-child){padding-left:16px}
.hero-spec div:last-child{border-right:0}
.hero-spec b{display:block;font-family:var(--cond);font-size:clamp(20px,2.2vw,27px);font-weight:500;line-height:1.1}
.hero-spec span{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.hero-r{position:relative;background:var(--paper-2);overflow:hidden;min-height:460px;margin-right:calc(var(--pad) * -1)}
.hero-r img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:60% 50%}
.hero-tag{
  position:absolute;left:0;bottom:0;background:rgba(255,253,247,.72);color:var(--ink);padding:16px 22px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid rgba(23,20,14,.1);
  display:flex;gap:14px;align-items:center;font-family:var(--mono);font-size:11px;letter-spacing:.12em;
}
.hero-tag i{width:7px;height:7px;background:var(--accent);display:block;border-radius:50%}

/* ---------- strip ---------- */
.strip{border-bottom:1px solid var(--line);background:var(--paper)}
.strip .wrap{display:flex;align-items:center;gap:clamp(18px,3vw,48px);height:62px;overflow:hidden;justify-content:space-between}
.strip span{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);white-space:nowrap;display:flex;align-items:center;gap:clamp(18px,3vw,48px)}
.strip span::after{content:"/";color:var(--line-dark)}
.strip span:last-child::after{display:none}

/* ---------- section ---------- */
section.block{padding:clamp(56px,7vw,104px) 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:clamp(30px,3.6vw,52px)}
.sec-head h2{font-size:clamp(28px,3.4vw,46px);line-height:1.04;letter-spacing:-.02em;font-weight:500;margin-top:18px;max-width:22ch;text-wrap:balance}
.sec-link{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;border-bottom:1px solid var(--line-dark);padding-bottom:5px;white-space:nowrap;transition:.2s;flex-shrink:0}
.sec-link:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- vehicle brands ---------- */
.brand-rows{border-top:1px solid var(--line-dark)}
.brand-row{display:grid;grid-template-columns:56px minmax(180px,290px) 1fr auto;gap:24px;align-items:center;padding:clamp(20px,2.4vw,30px) 0;border-bottom:1px solid var(--line);transition:.28s;position:relative}
.brand-row:hover{padding-left:14px}
.brand-row:hover .br-name{color:var(--accent)}
.brand-row::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--accent);transform:scaleY(0);transition:transform .3s;transform-origin:top}
.brand-row:hover::before{transform:scaleY(1)}
.br-idx{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.1em}
.br-name{font-family:var(--cond);font-size:clamp(23px,2.7vw,36px);font-weight:500;line-height:1;transition:color .25s;white-space:nowrap}
.br-models{display:flex;flex-wrap:wrap;gap:4px 16px;font-size:13px;color:var(--ink-soft);line-height:1.5}
.br-models span{position:relative}
.br-models span:not(:last-child)::after{content:"·";position:absolute;right:-10px;color:var(--muted)}
.br-count{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted);white-space:nowrap}

/* ---------- products ---------- */
.p-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2vw,26px)}
.p-card{position:relative;display:flex;flex-direction:column}
.p-img{background:var(--paper-2);aspect-ratio:1/1;overflow:hidden;position:relative}
.p-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.2,.7,.2,1)}
.p-card:hover .p-img img{transform:scale(1.055)}
.p-badge{position:absolute;top:0;left:0;background:var(--paper);border:1px solid var(--line);font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;padding:6px 10px;color:var(--ink-soft)}
.p-body{padding-top:15px;display:flex;justify-content:space-between;gap:14px;align-items:flex-start}
.p-name{font-size:15px;font-weight:500;letter-spacing:.01em}
.p-spec{font-family:var(--mono);font-size:10.5px;color:var(--muted);letter-spacing:.04em;margin-top:5px;line-height:1.7}
.p-plus{width:30px;height:30px;border:1px solid var(--line-dark);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px;color:var(--ink-soft);transition:.22s}
.p-card:hover .p-plus{background:var(--accent);color:var(--on-solid);border-color:var(--accent)}
.p-note{margin-top:34px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}

/* ---------- capability（首页已下线，样式保留备用） ---------- */
.cap{background:var(--paper-2);color:var(--ink)}
.cap .wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,80px);align-items:center}
.cap-img{position:relative;aspect-ratio:4/3.2;overflow:hidden}
.cap-img img{width:100%;height:100%;object-fit:cover;filter:saturate(.9)}
.cap .eyebrow{color:var(--muted)}
.cap h2{font-size:clamp(26px,3.2vw,44px);line-height:1.08;letter-spacing:-.02em;margin:18px 0 20px;font-weight:500}
.cap p{color:var(--ink-soft);font-size:15px;max-width:48ch}
.cap-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);margin-top:34px;border:1px solid var(--line)}
.cap-stats div{background:var(--paper-2);padding:20px 22px}
.cap-stats b{font-family:var(--cond);font-size:clamp(26px,3vw,36px);font-weight:500;display:block;line-height:1}
.cap-stats span{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);display:block;margin-top:7px}

/* ---------- process ---------- */
.proc{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:8px}
.proc div{background:var(--paper);padding:clamp(20px,2.4vw,30px) clamp(16px,2vw,26px)}
.proc i{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--accent);font-style:normal}
.proc h3{font-size:16px;font-weight:500;margin:14px 0 8px}
.proc p{font-size:13px;color:var(--muted);line-height:1.62}

/* ---------- gallery ---------- */
.gal{display:flex;gap:clamp(12px,1.6vw,20px);overflow-x:auto;scroll-behavior:smooth;padding-bottom:6px;scrollbar-width:none}
.gal::-webkit-scrollbar{display:none}
.gal-item{flex:0 0 clamp(260px,34vw,520px)}
.gal-item .ph{aspect-ratio:4/3;overflow:hidden;background:var(--paper-2)}
.gal-item img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.gal-item:hover img{transform:scale(1.05)}
.gal-cap{display:flex;justify-content:space-between;margin-top:11px;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);gap:10px}
.gal-cap b{color:var(--ink);font-weight:400}
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2vw,26px);text-align:left}
.gal-cell{display:block;width:100%}
.gal-cell .ph{aspect-ratio:4/3;overflow:hidden;background:var(--paper-2)}
.gal-cell img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.gal-cell:hover img{transform:scale(1.04)}

/* ---------- inquiry ---------- */
.inq{background:var(--paper-2);border-top:1px solid var(--line)}
.inq .wrap{display:grid;grid-template-columns:.85fr 1fr;gap:clamp(30px,5vw,72px);align-items:start}
.inq h2{font-size:clamp(28px,3.6vw,48px);line-height:1.02;letter-spacing:-.025em;font-weight:500;margin-top:18px}
.inq p{color:var(--ink-soft);font-size:15px;margin-top:20px;max-width:40ch}
.inq-meta{margin-top:30px;display:grid;gap:12px;font-size:13.5px}
.inq-meta a,.inq-line{display:flex;gap:10px;align-items:center;color:var(--ink-soft)}
.inq-meta a:hover{color:var(--accent)}
.inq-meta s{width:14px;height:1px;background:var(--accent);display:block;flex-shrink:0}
.inq-form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fld{display:flex;flex-direction:column;gap:7px}
.fld.full{grid-column:1/-1}
.fld label{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.fld input,.fld select,.fld textarea{border:1px solid var(--line-dark);background:var(--input);padding:12px 13px;font-family:var(--sans);font-size:14px;color:var(--ink);outline:none;transition:.2s;border-radius:0}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim)}
.fld textarea{resize:vertical;min-height:92px}
.inq-form .btn{grid-column:1/-1;justify-self:start;height:48px;padding:0 30px}
.fine{grid-column:1/-1;font-size:11.5px;color:var(--muted);line-height:1.6}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-msg{grid-column:1/-1;font-size:13px;padding:10px 12px;display:none}
.form-msg.ok{display:block;background:#EAF3DE;color:#27500A;border:1px solid #C0DD97}
.form-msg.err{display:block;background:#FCEBEB;color:#A32D2D;border:1px solid #F7C1C1}

/* ---------- footer ---------- */
footer{background:#1B1712;color:#B4B1A7;padding:clamp(46px,5vw,74px) 0 26px;font-size:13.5px;border-top:1px solid var(--line)}
.f-top{display:grid;grid-template-columns:1.4fr .8fr .8fr .9fr;gap:34px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.14)}
footer .logo-txt{color:var(--ink)}
footer .logo-txt small{color:#8A8880}
.f-top p{color:#9E9C8F;margin-top:18px;max-width:34ch;font-size:13px;line-height:1.7}
.f-top p.f-legal{font-family:var(--mono);font-size:10.5px;line-height:1.95;letter-spacing:.02em;color:#7E7C70;max-width:44ch;margin-top:15px}
.f-col h4{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:#8A8880;font-weight:400;margin-bottom:16px}
.f-col a{display:block;padding:6px 0;color:#CFCCBE;transition:.2s}
.f-col a:hover{color:var(--ink)}
.f-bot{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:22px;padding-right:74px;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:#7E7C70;flex-wrap:wrap}
.f-bot a:hover{color:var(--accent)}

/* ---------- floating contact rail ---------- */
/* 位置由后台「社交媒体 → 悬浮条位置」控制：left（默认）/ right */
.rail{position:fixed;top:50%;transform:translateY(-50%);z-index:55;display:flex;flex-direction:column;width:56px;background:rgba(255,253,247,.94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid var(--line);box-shadow:0 16px 40px -12px rgba(23,20,14,.28)}
.rail-left{left:0;border-left:0}
.rail-right{left:auto;right:0;border-right:0}

.rail-item{position:relative}
.rail-btn{
  width:100%;height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border-bottom:1px solid var(--line);color:var(--ink-soft);background:transparent;
  transition:background .2s ease,color .2s ease;position:relative;
}
.rail-item:last-child .rail-btn{border-bottom:0}
.rail-btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.rail-btn .ri-lbl{font-family:var(--mono);font-size:8.5px;letter-spacing:.04em;text-transform:uppercase;line-height:1;white-space:nowrap}
.rail-btn::before{content:"";position:absolute;top:50%;width:2px;height:0;background:var(--accent);transform:translateY(-50%);transition:height .22s ease}
.rail-left .rail-btn::before{left:0}
.rail-right .rail-btn::before{right:0}
.rail-item:hover .rail-btn,.rail-item:focus-within .rail-btn,.rail-item.open .rail-btn{background:var(--ink);color:var(--on-solid)}
.rail-item:hover .rail-btn::before,.rail-item:focus-within .rail-btn::before,.rail-item.open .rail-btn::before{height:22px}

/* hover / 点击弹出的卡片：邮箱地址或二维码 */
.rail-pop{
  position:absolute;top:50%;z-index:6;width:236px;padding:16px 16px 17px;
  background:#FFFFFF;border:1px solid var(--line-dark);box-shadow:0 24px 54px -14px rgba(23,20,14,.3);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .18s ease,transform .22s ease,visibility .22s;
}
.rail-left .rail-pop{left:100%;margin-left:10px;transform:translateY(-50%) translateX(-8px)}
.rail-right .rail-pop{right:100%;margin-right:10px;transform:translateY(-50%) translateX(8px)}
.rail-pop::before{content:"";position:absolute;top:0;bottom:0;width:12px}
.rail-left .rail-pop::before{right:100%}
.rail-right .rail-pop::before{left:100%}
.rail-item:hover .rail-pop,.rail-item:focus-within .rail-pop,.rail-item.open .rail-pop{
  opacity:1;visibility:visible;pointer-events:auto;transform:translateY(-50%) translateX(0);
}
.rp-k{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.rp-mail{display:block;font-size:14.5px;line-height:1.4;color:var(--ink);word-break:break-word}
.rp-mail:hover{color:var(--accent)}
.rp-qr{width:100%;height:auto;object-fit:contain;background:#fff;border:1px solid var(--line);padding:8px}
.rp-num{margin-top:11px;font-family:var(--mono);font-size:11px;letter-spacing:.03em;color:var(--ink-soft);word-break:break-word}
.rp-note{margin-top:6px;font-size:11px;line-height:1.5;color:var(--muted)}
.rp-act,.rp-copy{
  display:inline-flex;align-items:center;gap:6px;margin-top:13px;padding:0 0 3px;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink);border-bottom:1px solid var(--accent);transition:color .2s;
}
.rp-act:hover,.rp-copy:hover{color:var(--accent)}
.rp-copy.copied{color:var(--accent)}

/* 右下角 WhatsApp 悬浮按钮 */
.wa-float{
  position:fixed;right:22px;bottom:24px;z-index:56;width:54px;height:54px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;background:#25D366;
  box-shadow:0 8px 22px rgba(18,140,74,.34);
  transition:transform .22s ease,box-shadow .22s ease,opacity .2s ease;
}
.wa-float svg{width:29px;height:29px;fill:#fff}
.wa-float:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(18,140,74,.44)}
.wa-float::after{content:"";position:absolute;inset:0;border-radius:50%;border:1px solid rgba(37,211,102,.6);animation:waPulse 2.8s ease-out infinite}
@keyframes waPulse{0%{transform:scale(1);opacity:.85}70%,100%{transform:scale(1.5);opacity:0}}
@media(prefers-reduced-motion:reduce){.wa-float::after{animation:none}}

/* ---------- 底部快速留言弹窗 ---------- */
.qmsg{
  position:fixed;left:50%;bottom:0;transform:translateX(-50%);z-index:58;
  width:410px;max-width:100vw;display:flex;flex-direction:column;
}

.qmsg-tab{
  display:flex;align-items:center;gap:10px;width:100%;height:46px;padding:0 16px 0 18px;
  background:var(--ink);color:var(--on-solid);border:0;cursor:pointer;text-align:left;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.15);
  transition:background .22s ease;
}
.qmsg-tab:hover{background:var(--accent);color:var(--on-solid)}
.qmsg-tab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.qm-dot{width:6px;height:6px;background:#7FD69B;flex-shrink:0;border-radius:50%;animation:qmDot 2.4s ease-out infinite}
@keyframes qmDot{0%{box-shadow:0 0 0 0 rgba(127,214,155,.7)}70%,100%{box-shadow:0 0 0 7px rgba(127,214,155,0)}}
@media(prefers-reduced-motion:reduce){.qm-dot{animation:none}}
.qm-t{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.qm-chev{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;transition:transform .32s ease}
.qmsg.open .qm-chev{transform:rotate(180deg)}

.qmsg-panel{
  max-height:0;overflow:hidden;background:var(--surface);
  border:1px solid transparent;border-bottom:0;
  visibility:hidden;
  transition:max-height .42s cubic-bezier(.22,.61,.36,1),box-shadow .3s ease,visibility 0s linear .42s;
}
.qmsg.open .qmsg-panel{
  max-height:84vh;overflow-y:auto;border-color:var(--line);visibility:visible;
  box-shadow:0 -22px 54px -12px rgba(23,20,14,.28);
  transition:max-height .42s cubic-bezier(.22,.61,.36,1),box-shadow .3s ease,visibility 0s linear 0s;
}
.qmsg-form{display:flex;flex-direction:column;gap:14px;padding:20px 22px 18px}

.qm-head{padding-bottom:14px;border-bottom:1px solid var(--line)}
.qm-k{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.qm-head p{margin-top:7px;font-size:12.5px;line-height:1.6;color:var(--muted)}

.qm-fld{display:flex;flex-direction:column;gap:6px}
.qm-fld>span{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.qm-fld>span i{font-style:normal;color:var(--accent)}
.qm-fld input,.qm-fld textarea{
  width:100%;border:1px solid var(--line-dark);background:var(--input);border-radius:0;outline:none;
  padding:10px 12px;font-family:var(--sans);font-size:13.5px;color:var(--ink);
  transition:border-color .2s ease;
}
.qm-fld input{height:40px}
.qm-fld textarea{resize:vertical;min-height:76px;line-height:1.55}
.qm-fld input:focus,.qm-fld textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim)}
.qm-fld input::placeholder,.qm-fld textarea::placeholder{color:#6E695C}
.fld input::placeholder,.fld select::placeholder,.fld textarea::placeholder,.search-big input::placeholder,.drawer-search input::placeholder{color:#6E695C}

.qm-send{width:100%;height:46px;justify-content:center;margin-top:2px}
.qm-send:disabled{opacity:.55;cursor:not-allowed}
.qm-fine{font-size:11px;line-height:1.5;color:var(--muted);text-align:center}

.qmsg-form .form-msg{display:none;font-size:12.5px;padding:9px 11px}
.qmsg-form .form-msg.ok{display:block;background:#EAF3DE;color:#27500A;border:1px solid #C0DD97}
.qmsg-form .form-msg.err{display:block;background:#FCEBEB;color:#A32D2D;border:1px solid #F7C1C1}

@media(max-width:760px){
  .qmsg{width:100%}
  .qmsg-tab{height:48px;padding-bottom:env(safe-area-inset-bottom);height:calc(48px + env(safe-area-inset-bottom))}
  .qmsg.open .qmsg-panel{max-height:82vh}
  .qmsg-form{padding:18px 16px 20px;gap:13px}
  body.qmsg-open{overflow:hidden}
  body.qmsg-open .wa-float{display:none}
}

/* 底部留出弹窗标签条的高度，避免遮住页脚文字 */
footer{padding-bottom:calc(26px + 46px)}
@media(max-width:760px){footer{padding-bottom:calc(26px + 48px + env(safe-area-inset-bottom))}}

@media(max-width:1279px){.rail{display:none}}

/* ---------- page head ---------- */
.page-head{padding:clamp(28px,3.6vw,54px) 0 clamp(24px,3vw,40px);border-bottom:1px solid var(--line)}
.crumbs{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.crumbs a:hover{color:var(--accent)}
.crumbs em{color:var(--ink);font-style:normal}
.page-head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:30px}
.page-head h1{font-size:clamp(30px,4.2vw,60px);line-height:1.02;letter-spacing:-.025em;font-weight:500;margin-top:14px}
.page-sub{margin-top:16px;color:var(--ink-soft);font-size:15px;max-width:56ch}
.page-count{text-align:right;flex-shrink:0}
.page-count b{display:block;font-family:var(--cond);font-size:clamp(28px,3.4vw,44px);font-weight:500;line-height:1}
.page-count span{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* ---------- filter / pager ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;padding:22px 0}
.filter-bar-sub{padding-top:0;padding-bottom:26px;margin-bottom:26px;border-bottom:1px solid var(--line)}
.chip{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;padding:9px 14px;border:1px solid var(--line-dark);color:var(--ink-soft);transition:.2s}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.on{background:var(--ink);border-color:var(--ink);color:var(--on-solid)}
.chip-lead{border-style:dashed}
.chip-lead.on{border-style:solid}
.pager{margin-top:44px;display:flex;justify-content:center}
.pager .pagination{display:flex;gap:6px;list-style:none;flex-wrap:wrap}
.pager .pagination li a,.pager .pagination li span{display:flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border:1px solid var(--line-dark);font-family:var(--mono);font-size:12px;color:var(--ink-soft)}
.pager .pagination li.active span{background:var(--ink);border-color:var(--ink);color:var(--on-solid)}
.pager .pagination li a:hover{border-color:var(--ink);color:var(--ink)}
.empty{padding:70px 0;text-align:center}
.empty p{color:var(--muted);margin-bottom:18px}

/* ---------- product detail ---------- */
.pdp-top{padding:clamp(20px,3vw,38px) 0 clamp(36px,5vw,64px)}
.pdp-grid{display:grid;grid-template-columns:1.06fr 1fr;gap:clamp(26px,4vw,64px);align-items:start}
.pdp-gallery{min-width:0}
.pdp-main{background:var(--paper-2);aspect-ratio:1/1;overflow:hidden}
.pdp-main img{width:100%;height:100%;object-fit:cover}
.pdp-thumbs{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap}
.pdp-thumb{width:76px;height:76px;border:1px solid var(--line);overflow:hidden;padding:0;background:var(--paper-2);transition:.2s}
.pdp-thumb img{width:100%;height:100%;object-fit:cover}
.pdp-thumb.on{border-color:var(--ink)}
.pdp-info h1{font-size:clamp(34px,4.4vw,60px);line-height:1;letter-spacing:-.03em;font-weight:500;margin-top:16px}
.pdp-badge{display:inline-block;vertical-align:middle;margin-left:14px;font-family:var(--mono);font-size:11px;font-style:normal;letter-spacing:.12em;text-transform:uppercase;padding:5px 9px;border:1px solid var(--accent);color:var(--accent)}
.pdp-title{font-size:17px;color:var(--ink-soft);margin-top:14px;max-width:46ch;line-height:1.55}
.pdp-sub{font-size:14px;color:var(--muted);margin-top:8px}
.pdp-cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.pdp-keys{width:100%;border-collapse:collapse;margin-top:30px;border-top:1px solid var(--line-dark)}
.pdp-keys th,.pdp-keys td{padding:13px 0;border-bottom:1px solid var(--line);font-size:15px;text-align:left;vertical-align:top}
.pdp-keys th{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:400;width:23%}
.pdp-keys td{font-family:var(--mono);font-size:15.5px;width:27%;color:var(--ink);font-weight:500;font-variant-numeric:tabular-nums}
.pdp-supply{margin-top:16px;font-size:14px;color:var(--ink-soft);font-family:var(--mono)}
.spec-block{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.spec-table-wrap{overflow-x:auto;border:1px solid var(--line)}
.spec-table{width:100%;border-collapse:collapse;min-width:720px}
.spec-table th{background:var(--paper-2);font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);font-weight:500;padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
.spec-table th:nth-child(1),.spec-table td:nth-child(1){width:9%}
.spec-table th:nth-child(2),.spec-table td:nth-child(2){width:32%}
.spec-table th:nth-child(3),.spec-table td:nth-child(3){width:15%}
.spec-table th:nth-child(4),.spec-table td:nth-child(4){width:15%}
.spec-table th:nth-child(5),.spec-table td:nth-child(5){width:14%}
.spec-table td{padding:15px 18px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink);font-weight:500}
.spec-table tr:last-child td{border-bottom:0}
.spec-table tr:hover td{background:rgba(23,20,14,.035)}
.spec-note{margin-top:16px;font-size:14px;color:var(--muted)}
/* 关键参数突出：首行 Size / Width 是采购最先看的，放大加粗 */
.pdp-keys tr:first-child td{font-size:17.5px;font-weight:600;letter-spacing:-.01em}
.pdp-keys tr:first-child th{color:var(--ink-soft)}
@media(max-width:560px){.pdp-keys td{font-size:14px}.pdp-keys tr:first-child td{font-size:15.5px}}

/* ---------- prose ---------- */
.prose{max-width:74ch}
.prose p{margin-bottom:1.1em;font-size:15.5px;line-height:1.75;color:var(--ink-soft)}
.prose h2,.prose h3{font-weight:500;letter-spacing:-.01em;margin:1.6em 0 .6em;line-height:1.2}
.prose h2{font-size:24px}
.prose h3{font-size:19px}
.prose ul,.prose ol{margin:0 0 1.1em 1.3em;color:var(--ink-soft);font-size:15.5px;line-height:1.75}
.prose img{margin:1.4em 0;width:100%}
.prose a{color:var(--accent);border-bottom:1px solid currentColor}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0}
.prose td,.prose th{border:1px solid var(--line);padding:10px 12px;font-size:14px}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line-dark)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;text-align:left;padding:22px 0;font-size:15.5px;font-weight:500;letter-spacing:-.005em}
.faq-q i{font-style:normal;font-size:18px;color:var(--muted);transition:.25s;flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(45deg);color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding-bottom:22px;color:var(--ink-soft);font-size:14.5px;line-height:1.7;max-width:70ch}

/* ---------- search / map / misc ---------- */
.search-big{display:flex;gap:10px;margin-top:24px;max-width:640px}
.search-big input{flex:1;border:1px solid var(--line-dark);background:var(--input);color:var(--ink);padding:13px 15px;font-family:var(--sans);font-size:15px;outline:none}
.search-big input:focus{border-color:var(--accent)}
.map-wrap{border:1px solid var(--line);background:var(--paper-2)}
.page-cover{margin:0 0 clamp(30px,4vw,52px);background:var(--paper-2);max-height:520px;overflow:hidden}
.page-cover img{width:100%;height:100%;object-fit:cover}

/* ---------- lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:120;background:rgba(23,20,14,.94);display:none;align-items:center;justify-content:center;padding:40px}
.lightbox.on{display:flex}
.lightbox img{max-width:92vw;max-height:88vh;object-fit:contain}
.lightbox-trigger{cursor:zoom-in}
.lb-close{position:absolute;top:18px;right:24px;color:#fff;font-size:34px;line-height:1}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.on{opacity:1;transform:none}

/* =============================================================
   暗色金属增强层
   放在响应式之前：组件细节覆盖上面的浅色版规则，媒体查询仍能覆盖本层
   ============================================================= */

/* 选区与焦点 */
::selection{background:var(--accent);color:var(--on-solid)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* 滚动条 */
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:#EFEBE0}
::-webkit-scrollbar-thumb{background:#CFC9BB;border:3px solid #EFEBE0}
::-webkit-scrollbar-thumb:hover{background:#BDB6A6}

/* 顶部条：金属渐隐边 + 铜点 */
/* 顶栏 */
.topbar{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#FFFDF7,rgba(247,244,236,.6))}
.topbar .wrap{height:38px}

/* Logo 字标：暖白 + 铜色副标 */
.logo-txt{letter-spacing:.2em}
.logo-txt small{color:var(--accent);opacity:.85}
.logo-mark{color:var(--ink)}
.logo-mark svg{filter:none}
.hero-tag{z-index:2}

/* Hero：斜向光晕 + 缓慢推镜 + 玻璃规格条 */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-dark)}
.hero::before{
  content:"";position:absolute;left:-18%;top:-46%;width:78vw;height:78vw;pointer-events:none;z-index:0;
  background:radial-gradient(circle,rgba(208,138,78,.12) 0%,rgba(208,138,78,.05) 34%,transparent 64%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;pointer-events:none;z-index:3;
  background:var(--metal-line);opacity:.5;
}
.hero .wrap{position:relative;z-index:1}
.hero-r{background:var(--paper-2);min-height:520px}
.hero-r::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(96deg,rgba(247,244,236,.96) 0%,rgba(247,244,236,.72) 9%,rgba(247,244,236,.28) 26%,rgba(247,244,236,.05) 44%,transparent 60%),
             radial-gradient(120% 90% at 80% 16%,transparent 42%,rgba(247,244,236,.4) 100%),
             linear-gradient(0deg,rgba(247,244,236,.3) 0%,transparent 26%);
}
.hero-r img{
  animation:heroDrift 30s ease-in-out infinite alternate;
  will-change:transform;
}
@keyframes heroDrift{from{transform:scale(1.02)}to{transform:scale(1.12)}}
.hero h1{text-shadow:none}
.hero h1 em{position:relative;white-space:nowrap}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:1px;
  background:linear-gradient(90deg,rgba(208,138,78,.9),rgba(208,138,78,0));
}
.hero-spec{
  border-top:1px solid var(--line-dark);
  background:linear-gradient(180deg,rgba(23,20,14,.03),transparent);
  padding:18px 16px 16px;
}
.hero-spec b{background:linear-gradient(180deg,#2A241A,#6B6355);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-cta .btn{letter-spacing:.03em}
.hero-cta .btn:first-child{box-shadow:0 14px 34px -16px rgba(23,20,14,.35)}
.hero-cta .btn-ghost:hover{box-shadow:0 14px 34px -18px rgba(23,20,14,.28)}

/* 资质条：等宽字 + 铜色斜杠 */
.strip{background:linear-gradient(180deg,var(--paper-2),var(--paper))}
.strip span{color:var(--ink-soft)}
.strip span::after{color:var(--accent);opacity:.5}

/* 区块标题：更大的字、更紧的字距 + 顶部金属分割线 */
section.block{position:relative}
section.block::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(120,110,92,.12) 30%,rgba(23,20,14,.16) 50%,rgba(120,110,92,.12) 70%,transparent);
}
.sec-head h2{font-size:clamp(30px,3.9vw,56px);letter-spacing:-.032em}
.sec-head .eyebrow{color:var(--muted)}
.sec-link{border-bottom-color:rgba(120,110,92,.45)}
.sec-link:hover{color:var(--accent);border-color:var(--accent)}

/* 品牌行：hover 时整行微亮 + 铜色竖条加粗 */
.brand-rows{border-top:1px solid var(--line-dark)}
.brand-row{transition:padding-left .3s,background .3s}
.brand-row:hover{background:linear-gradient(90deg,rgba(23,20,14,.04),transparent 62%)}
.brand-row::before{width:2px;background:var(--accent);box-shadow:0 0 18px 1px rgba(208,138,78,.5)}
.br-name{background:linear-gradient(180deg,#2A241A,#8A8375);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-row:hover .br-name{background:linear-gradient(180deg,#C0783A,#9A5E2E);-webkit-background-clip:text;background-clip:text;color:transparent}
.br-models span{transition:color .2s}
.brand-row:hover .br-models span{color:var(--ink)}

/* 产品卡：产品图自带暗场棚拍底，无需蒙版，只留极轻暗角与 hover 提亮 */
.p-img{
  background:#FFFFFF;
  box-shadow:inset 0 0 0 1px var(--line);
  overflow:hidden;position:relative;
}
.p-img::after{
  content:"";position:absolute;inset:0;pointer-events:none;transition:box-shadow .35s;
  background:radial-gradient(circle at 50% 46%,transparent 60%,rgba(247,244,236,.2) 86%,rgba(247,244,236,.4) 100%);
}
.p-img img{
  filter:contrast(1.02) saturate(1);
  transition:transform .9s cubic-bezier(.2,.7,.2,1),filter .5s ease;
}
.p-card:hover .p-img img{transform:scale(1.055);filter:brightness(1.03) contrast(1.02) saturate(1)}
.p-card:hover .p-img{box-shadow:inset 0 0 0 1px rgba(192,120,58,.4),0 26px 50px -30px rgba(23,20,14,.28)}
.p-card{transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.p-card:hover{transform:translateY(-3px)}
.p-badge{background:rgba(255,253,247,.85);border:1px solid rgba(192,120,58,.5);color:var(--accent);letter-spacing:.16em;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.p-name{letter-spacing:.005em}
.p-card:hover .p-name{color:var(--accent)}
.p-plus{border-color:var(--line-dark);color:var(--ink-soft)}
.p-plus{transition:background .24s,color .24s,border-color .24s,transform .24s}
.p-card:hover .p-plus{transform:rotate(90deg)}

/* 图库：浅底实拍图整体压暗 + 底部渐隐，避免暗场里出现亮方块 */
.gal-item .ph,.gal-cell .ph{background:var(--paper-2);box-shadow:inset 0 0 0 1px var(--line);position:relative}
.pdp-thumb{background:#FFFFFF;box-shadow:inset 0 0 0 1px var(--line)}
.gal-item .ph::after,.gal-cell .ph::after{
  content:"";position:absolute;inset:0;pointer-events:none;transition:opacity .4s;
  background:linear-gradient(180deg,rgba(247,244,236,.15) 0%,transparent 40%,transparent 70%,rgba(247,244,236,.3) 100%);
}
.gal-item img,.gal-cell img{filter:brightness(1) contrast(1.02) saturate(1)}
.gal-item:hover img,.gal-cell:hover img{filter:brightness(1.03) contrast(1.02) saturate(1)}
.gal-item:hover .ph::after,.gal-cell:hover .ph::after{opacity:.6}
.gal-cap b{color:var(--ink)}
.gal-item:hover .gal-cap b{color:var(--accent)}

/* 询盘区：左侧铜色竖线 + 深底玻璃表单 */
.inq{background:linear-gradient(180deg,var(--paper-2),var(--paper));border-top:1px solid var(--line-dark)}
.inq .wrap{position:relative}
.inq h2{letter-spacing:-.035em}
.inq-form{padding:clamp(20px,2.6vw,32px);background:rgba(255,255,255,.8);border:1px solid var(--line-dark);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 30px 70px -40px rgba(23,20,14,.2)}
.fld input,.fld select,.fld textarea{border-color:var(--line-dark)}
.fld select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 17px) 52%,calc(100% - 12px) 52%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.form-msg.ok{background:rgba(122,168,74,.14);color:#3D6B16;border:1px solid rgba(122,168,74,.5)}
.form-msg.err{background:rgba(196,84,84,.1);color:#A32D2D;border:1px solid rgba(196,84,84,.4)}

/* 页脚：顶部金属线 + 大字水印 */
footer{position:relative;overflow:hidden}
footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--metal-line);opacity:.55}
.f-col h4{color:var(--accent);opacity:.9}
.f-top p{color:#9A978D}

/* 分类页 / 详情页 */
.page-head{border-bottom:1px solid var(--line-dark)}
.page-head h1{letter-spacing:-.035em}
.page-count b{background:linear-gradient(180deg,#2A241A,#8A8375);-webkit-background-clip:text;background-clip:text;color:transparent}
.chip{border-color:var(--line-dark);color:var(--ink-soft)}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.on{box-shadow:0 10px 26px -16px rgba(23,20,14,.4)}
.pager .pagination li a{border-color:var(--line-dark);color:var(--ink-soft)}
.pdp-main{
  aspect-ratio:1/1;position:relative;overflow:hidden;
  background:#FFFFFF;
  box-shadow:inset 0 0 0 1px var(--line);
}
.pdp-main img{
  filter:contrast(1.02) saturate(1);
  transition:filter .45s ease;
}
.pdp-main::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 50% 47%,transparent 64%,rgba(247,244,236,.2) 88%,rgba(247,244,236,.4) 100%);
  transition:opacity .4s ease;
}
.pdp-main:hover img{filter:brightness(1.03) contrast(1.02)}
.pdp-main:hover::after{opacity:.6}
.pdp-thumb img{filter:contrast(1.03)}
.pdp-thumb.on{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.pdp-info h1{letter-spacing:-.038em}
.pdp-keys th{color:var(--muted)}
.pdp-keys td{color:var(--ink-soft)}
.spec-table th{background:#F2EEE3;color:var(--ink-soft)}
.spec-table-wrap{border-color:var(--line)}
.prose img{filter:none}
.prose table th{background:var(--paper-2)}
.faq-q:hover{color:var(--accent)}
.lightbox{background:rgba(23,20,14,.94);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.page-cover{background:var(--paper-2)}

/* 弱化动效偏好：全部关掉 */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .rv{opacity:1!important;transform:none!important}
  .hero-r img{animation:none}
}

/* 不支持 backdrop-filter 的浏览器退回不透明底 */
@supports not ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
  header{background:#F7F4EC}
  .rail{background:#FAF8F2}
  .mega{background:#FFFDF7}
  .inq-form{background:#FCFBF7}
}

/* 渐变文字的兜底：老浏览器不支持 background-clip 时退回实色，避免文字消失 */
@supports not ((-webkit-background-clip:text) or (background-clip:text)){
  .hero-spec b,.br-name,.page-count b,.brand-row:hover .br-name{color:var(--ink);background:none;-webkit-text-fill-color:currentColor}
}



/* =============================================================
   响应式
   ============================================================= */
@media(max-width:1120px){
  .menu{display:none}
  .burger{display:flex}
  .nav-r .btn{display:none}
}
@media(max-width:1000px){
  .brand-row{grid-template-columns:44px minmax(140px,200px) 1fr auto;gap:18px}
}
@media(max-width:900px){
  .hero .wrap{grid-template-columns:1fr}
  .hero-l{padding-right:0;order:2;padding-top:36px}
  .hero-r{order:1;min-height:78vw;margin:0 calc(var(--pad) * -1)}
  .p-grid{grid-template-columns:repeat(2,1fr)}
  .cap .wrap{grid-template-columns:1fr}
  .proc{grid-template-columns:repeat(2,1fr)}
  .inq .wrap{grid-template-columns:1fr}
  .inq-form{grid-template-columns:1fr}
  .pdp-grid{grid-template-columns:1fr}
  .gal-grid{grid-template-columns:repeat(2,1fr)}
  .f-top{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .wa-float{right:14px;bottom:calc(48px + 16px + env(safe-area-inset-bottom));width:48px;height:48px}
  .wa-float svg{width:25px;height:25px}
  .f-bot{padding-right:60px}
  .topbar-r span:nth-child(2){display:none}
  .page-head-row{flex-direction:column;align-items:flex-start}
  .page-count{text-align:left}
}
@media(max-width:720px){
  .sec-head{flex-direction:column;align-items:flex-start}
  .brand-row{
    grid-template-columns:36px 1fr auto;gap:8px 12px;
    grid-template-areas:"idx name count" ". models models";
  }
  .br-idx{grid-area:idx}
  .br-name{grid-area:name}
  .br-models{grid-area:models}
  .br-count{grid-area:count}
}
@media(max-width:560px){
  .hero-spec{grid-template-columns:repeat(2,1fr);gap:16px 0;margin-top:32px}
  .hero-spec div{border-right:0;padding-left:0;padding-right:10px}
  .hero-spec div:nth-child(even){padding-left:14px;border-left:1px solid var(--line)}
  .hero-cta .btn{flex:1 1 auto;padding:0 16px;font-size:13px}
  .topbar .wrap>span:first-child{display:none}
  .strip .wrap span:nth-child(n+3){display:none}
  .strip .wrap{justify-content:flex-start}
  .p-grid{grid-template-columns:1fr}
  .gal-grid{grid-template-columns:1fr}
  .proc{grid-template-columns:1fr}
  .f-top{grid-template-columns:1fr}
  .pdp-thumb{width:62px;height:62px}
  .search-big{flex-direction:column}
}