/* ============================================================
   利记五金 Liji Hardware · 全新独立站视觉系统 v2
   佛山利记金属制品有限公司 gdleekee.com
   设计语言：碳墨黑 × 金属金（呼应黄铜/五金）+ 白底大图 + 工业轻奢
   本文件为利记专有，非任何其它站点复制。
   ============================================================ */
:root{
  --ink:#16181c;        /* 碳墨黑 主文案/深底 */
  --ink-2:#23262c;
  --graphite:#2f333a;
  --gold:#b8860b;       /* 金属金 点缀(偏黄铜) */
  --gold-2:#d4a02c;
  --brass:#c9973a;
  --paper:#faf8f5;      /* 米白纸底 */
  --line:#e4ddd2;       /* 暖浅边 */
  --mut:#8a867c;        /* 次要文字 */
  --white:#fff;
  --ok:#2f7d4f;
  --warn:#b3472f;
  --shadow:0 14px 40px rgba(22,24,28,.08);
  --shadow-lg:0 24px 60px rgba(22,24,28,.14);
  --radius:14px;
  --font:'Helvetica Neue',Arial,'PingFang SC','Microsoft YaHei',sans-serif;
  --serif:Georgia,'Songti SC','SimSun',serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);line-height:1.65;background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:1240px;margin:0 auto;padding:0 22px}
.row{display:flex;flex-wrap:wrap}

/* ---------- 语言切换(en/zh 双文案) ---------- 强制显隐, 禁被其他元素规则覆盖 */
.zh,.zh-only{display:none!important}
.en{display:inline!important}
.en,html:not(.lang-zh) .en{display:inline!important}
html:not(.lang-zh) .zh,html:not(.lang-zh) .zh-only{display:none!important}
html.lang-zh .en,html.lang-zh .en-only{display:none!important}
html.lang-zh .zh,html.lang-zh .zh-only{display:inline!important}
div.zh-only,span.zh-only,h1.zh-only,h2.zh-only,h3.zh-only,h4.zh-only,p.zh-only,li.zh-only,small.zh-only,b.zh-only,a.zh-only,em.zh-only,strong.zh-only{display:none!important}
div.en-only,span.en-only,h1.en-only,h2.en-only,h3.en-only,h4.en-only,p.en-only,li.en-only,small.en-only,b.en-only,a.en-only,em.en-only,strong.en-only{display:inline!important}

/* ---------- Header / 导航 ---------- */
.site-head{position:sticky;top:0;z-index:60;background:rgba(22,24,28,.92);backdrop-filter:blur(8px);border-bottom:1px solid rgba(212,160,44,.25)}
.head-in{display:flex;align-items:center;justify-content:space-between;height:72px;gap:18px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:44px;height:44px;border-radius:10px;background:linear-gradient(145deg,#c9973a,#8c6a1f);display:flex;align-items:center;justify-content:center;color:#16181c;font-weight:800;font-size:20px;box-shadow:inset 0 2px 6px rgba(255,255,255,.4),0 6px 14px rgba(0,0,0,.25)}
.brand b{color:#f1e7d3;font-size:18px;letter-spacing:.5px;line-height:1.1;display:block}
.brand-text b{display:block;line-height:1.2}
.brand-text small{display:block;color:#b9b3a6;font-size:10.5px;letter-spacing:2px;text-transform:uppercase;margin-top:2px}
.brand small{color:#b9b3a6;font-size:11px;letter-spacing:2.5px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:#d9d2c4;font-size:14.5px;font-weight:500;position:relative;padding:6px 2px;transition:.2s}
.nav a:hover,.nav a.on{color:#f5d78a}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold-2);transition:.25s}
.nav a:hover::after,.nav a.on::after{width:100%}
.head-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:8px;padding:11px 20px;font-size:14.5px;cursor:pointer;border:1px solid transparent;transition:.2s;font-family:inherit}
.btn-gold{background:linear-gradient(145deg,#d4a02c,#8c6a1f);color:#16181c;box-shadow:0 6px 18px rgba(180,130,20,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(180,130,20,.42)}
.btn-ghost{border-color:rgba(212,160,44,.5);color:#f5d78a}
.btn-ghost:hover{border-color:#d4a02c;background:rgba(212,160,44,.08)}
.btn-line{border-color:var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--gold);color:var(--gold)}
.lang-btn{background:none;border:1px solid rgba(255,255,255,.25);color:#e5ddcc;border-radius:20px;padding:6px 14px;font-size:12.5px;cursor:pointer;transition:.2s}
.lang-btn:hover{border-color:var(--gold-2);color:#f5d78a}

/* Hero 首屏 */
.hero{background:linear-gradient(180deg,#14161a,#1c1f24);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(600px 400px at 80% -10%,rgba(212,160,44,.14),transparent)}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;padding:90px 0 100px;align-items:center}
.hero .kicker{color:var(--gold-2);letter-spacing:4px;font-size:12.5px;text-transform:uppercase;font-weight:600}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.12;margin:16px 0 18px;font-weight:800}
.hero h1 .gw{color:transparent;background:linear-gradient(120deg,#e8cd7d,#b8860b);-webkit-background-clip:text;background-clip:text}
.hero p.lead{color:#b9c0c8;max-width:560px;font-size:17px}
.hero .facts{display:flex;gap:28px;margin-top:34px;flex-wrap:wrap}
.fact b{font-size:26px;color:#f5d78a;display:block;line-height:1}
.fact span{font-size:12.5px;color:#9aa0a8;letter-spacing:.5px}
.gear{display:flex;align-items:center;justify-content:center;min-height:300px}
.gear svg{width:100%;height:auto;max-width:420px;opacity:.9}

/* 区块通用 */
.sec{padding:74px 0}
.sec-tint{background:var(--paper)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head .kicker{color:var(--gold);letter-spacing:3px;text-transform:uppercase;font-size:12px;font-weight:700}
.sec-head h2{font-size:clamp(24px,3vw,36px);margin:8px 0 10px;font-weight:800;letter-spacing:.3px}
.sec-head p{color:var(--mut);font-size:15.5px}
.centered{text-align:center;margin-left:auto;margin-right:auto}

/* 产品分类宫格 */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/5;background:#24262b;color:#fff;display:flex;align-items:flex-end;box-shadow:var(--shadow);transition:.25s}
.cat-card:hover{transform:translateY(-4px)}
.cat-card .cc-t{width:100%;padding:18px;background:linear-gradient(transparent,rgba(10,11,13,.85))}
.cat-card h3{font-size:19px}
.cat-card span{font-size:13px;color:#cfc7b4;display:block}
@media(max-width:900px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cat-grid{grid-template-columns:repeat(2,1fr);gap:10px}}

/* 产品卡(通用网格) */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pcard{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.22s;display:flex;flex-direction:column}
.pcard:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#d8c48f}
.pcard .pc-img{aspect-ratio:1/1;background:#f1ede4;overflow:hidden}
.pcard .pc-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.pcard:hover .pc-img img{transform:scale(1.05)}
.pcard-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.pcard-body h3{font-size:15px;font-weight:600;line-height:1.35}
.pcard-body .pc-meta{font-size:12px;color:var(--mut)}
.pcard .pc-cta{margin-top:auto}
@media(max-width:1000px){.pgrid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.pgrid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:430px){.pgrid{grid-template-columns:1fr 1fr;gap:10px}}

/* Step / 信任 / 图标条 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--serif);font-size:40px;color:#e3d6b2;font-weight:700;display:block;line-height:1}
.step h3{font-size:16px;margin:10px 0 6px}
.step p{font-size:13.5px;color:var(--mut)}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}

/* 应用/信任条 */
.pills{display:flex;gap:10px;flex-wrap:wrap}
.pill{border:1px solid var(--line);padding:9px 16px;border-radius:30px;font-size:13.5px;background:#fff;transition:.2s;color:var(--ink)}
.pill:hover{border-color:var(--gold);color:var(--gold)}
.pill.on{background:var(--gold);border-color:var(--gold);color:#fff}

/* CTA 大条 */
.cta-band{background:linear-gradient(120deg,#1a1d22,#262021);color:#fff;border-radius:18px;padding:52px 40px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,3vw,30px)}
.cta-band p{color:#b9b0a0;margin-top:6px;max-width:560px}

/* 页面头(内页 hero 简版) */
.page-hero{background:linear-gradient(160deg,#16181c,#26272c);color:#fff;padding:56px 0 52px}
.page-hero .crumb{color:#b9b0a0;font-size:13px;margin-bottom:10px}
.page-hero .crumb a{color:#d8c48f}
.page-hero h1{font-size:clamp(26px,3.6vw,42px)}
.page-hero p{color:#c3cad2;margin-top:8px;max-width:640px}

/* Footer */
.site-foot{background:#121316;color:#b9b3a6;margin-top:0}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding:60px 0 40px}
.foot-top h4{color:#f0e7d3;font-size:15px;margin-bottom:16px;letter-spacing:1px}
.foot-top a,.foot-top li{font-size:13.5px;line-height:2;color:#b9b3a6}
.foot-top a:hover{color:#f5d78a}
.foot-qr{display:flex;gap:14px;margin-top:16px}
.foot-qr img{width:92px;border-radius:8px;border:1px solid #333}
.foot-bottom{border-top:1px solid #26282c;padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#7c7a72}
@media(max-width:900px){.foot-top{grid-template-columns:1fr 1fr}}

/* 表单/按钮通用跟手 */
input,select,textarea{font-family:inherit;font-size:14.5px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:12px 14px;background:#fff;transition:.2s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,150,40,.12)}

/* 简易响应式导航折叠(移动) */
.nav-toggle{display:none;background:none;border:0;color:#f1e7d3;font-size:24px;cursor:pointer}
@media(max-width:900px){
  .nav-toggle{display:block}
  .nav{position:fixed;inset:0;background:#181a1e;flex-direction:column;justify-content:center;gap:22px;transform:translateX(100%);transition:.3s;z-index:80}
  .nav.open{transform:translateX(0)}
  .nav a{font-size:20px}
  .hero-in{grid-template-columns:1fr;padding:56px 0}
}
.no-scroll{overflow:hidden}

/* 语言切换后文字(纯 CSS 隐显用 en/zh 双包) */

/* 悬浮在线咨询(绿色 WA 风格, 指向联系页二维码) */
.wa-float{position:fixed;right:22px;bottom:26px;z-index:70;width:58px;height:58px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(37,211,102,.45);transition:.2s}
.wa-float:hover{transform:translateY(-4px) scale(1.04)}
.wa-float svg{width:30px;height:30px;fill:#fff}

/* ================= 产品详情页(利记专属) ================= */
.pd-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:start}
.pd-gallery{position:sticky;top:24px}
.pd-main{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;aspect-ratio:1/1}
.pd-main img{width:100%;height:100%;object-fit:contain;display:block}
.pd-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.pd-thumb{width:74px;height:74px;border:2px solid var(--line);border-radius:9px;overflow:hidden;background:#fff;cursor:pointer;padding:0}
.pd-thumb img{width:100%;height:100%;object-fit:contain}
.pd-thumb.on{border-color:var(--gold)}
.pd-info .pd-title{font-size:clamp(22px,2.8vw,30px);line-height:1.25;margin:8px 0 4px}
.pd-info .pd-ct{color:var(--mut);font-size:13px;margin-bottom:18px}
.pd-bullets{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:10px}
.pd-bullets li{position:relative;padding-left:26px;font-size:14.5px;color:#3c3f45}
.pd-bullets li::before{content:"✓";position:absolute;left:0;top:0;color:var(--gold);font-weight:700}
.pd-spec{background:#f6f2ea;border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:20px 0}
.pd-spec h3{margin:0 0 8px;font-size:15px}
.pd-spec table{width:100%;border-collapse:collapse;font-size:13.5px}
.pd-spec th{text-align:left;color:var(--mut);width:120px;padding:5px 8px 5px 0;vertical-align:top;font-weight:600}
.pd-spec td{padding:5px;vertical-align:top;color:#222}
.pd-spec tr:not(:last-child) td{border-bottom:1px dashed #e0d7c4}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
@media(max-width:900px){.pd-wrap{grid-template-columns:1fr}.pd-gallery{position:static}}
@media(max-width:900px){.pd-spec th{width:92px}}

/* 询盘表 */
.pd-inquiry{max-width:860px}
.quote-form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.quote-form .row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.quote-form textarea{resize:vertical}
.quote-form .field input,.quote-form .field textarea{box-shadow:inset 0 1px 2px rgba(0,0,0,.03)}
@media(max-width:720px){.quote-form .row{grid-template-columns:1fr}}

/* 提交反馈条 */
.tray{background:#e9f7ec;border:1px solid #b8e4c4;color:#166b34;border-radius:10px;padding:14px 18px;margin-bottom:26px;font-size:14.5px}
.tray.err{background:#fdecec;border-color:#f3c0c0;color:#a02626}

/* 关于/内页侧卡 */
.side-card{background:#f6f2ea;border:1px solid var(--line);border-radius:16px;padding:24px 26px;min-width:280px}
.side-card h3{margin:0 0 12px;font-size:17px;color:var(--ink)}
.side-card ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;font-size:14px}
.side-card li{display:flex;justify-content:space-between;gap:18px;color:#3c3f45}
.side-card li b{color:var(--ink);text-align:right;margin-left:auto}

/* OEM能力卡 / 信任点 */
.oem-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 18px;height:100%}
.oem-card h3{font-size:16px}
.pt-item{background:#fff;border:1px solid var(--line);border-radius:11px;padding:15px 18px;font-size:14.5px;color:#333}