/* ============================================================
 * style.css - 海外工程机械企业展示站模板 全站样式
 * 布局为客户确认版(v20261025)，禁止改动布局结构，只可微调颜色/间距
 * ============================================================ */
:root{
  --navy:#0b2545;
  --navy-2:#13315c;
  --steel:#1c4b82;
  --accent:#f5a623;
  --ink:#0f172a;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#ffffff;
  --bg-soft:#f6f8fb;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
h1,h2,h3,.cond{font-family:'Barlow Condensed','Inter',sans-serif;letter-spacing:.5px}

/* ===== Top bar ===== */
.topbar{background:var(--navy);color:#cdd9ea;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar a{color:#cdd9ea;text-decoration:none}
.topbar .r{display:flex;gap:18px;align-items:center}

/* ===== Nav ===== */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;height:70px;gap:28px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;text-decoration:none;color:var(--navy)}
.brand img{height:38px;width:auto}
.brand .t{font-family:'Barlow Condensed';font-size:22px;letter-spacing:1px}
.brand .s{font-size:11px;color:var(--muted);font-weight:500;letter-spacing:0;font-family:'Inter'}
.menu{margin-left:auto;display:flex;gap:26px;align-items:center}
.menu a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500;padding:6px 0;position:relative}
.menu a:hover{color:var(--steel)}
.menu a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--accent);transition:right .25s}
.menu a:hover::after{right:0}
.lang{display:inline-flex;align-items:center;gap:2px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:4px;font-size:13px;font-weight:600;color:var(--navy);cursor:pointer;font-family:inherit}
.lang .lg{padding:4px 10px;border-radius:6px;line-height:1.3;color:var(--muted);cursor:pointer;user-select:none}
.lang .lg.on{background:var(--navy);color:#fff}
.cta-top{background:var(--accent);color:#1a1206;padding:9px 18px;border-radius:8px;font-weight:600;text-decoration:none;font-size:14px}
.burger{display:none;margin-left:auto;font-size:26px;background:none;border:none;color:var(--navy);cursor:pointer}

/* ===== Hero ===== */
.hero{position:relative;background:
  linear-gradient(115deg,rgba(11,37,69,.96) 0%,rgba(19,49,92,.90) 55%,rgba(28,75,130,.78) 100%),
  radial-gradient(1200px 500px at 85% 15%,rgba(245,166,35,.18),transparent 60%);
  color:#fff;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:92px 24px 96px}
.hero .eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;letter-spacing:2px;text-transform:uppercase;color:var(--accent);font-weight:600;margin-bottom:18px}
.hero .eyebrow::before{content:"";width:28px;height:2px;background:var(--accent)}
.hero h1{font-size:58px;line-height:1.05;font-weight:700;margin-bottom:20px}
.hero h1 span{color:var(--accent)}
.hero p{font-size:17px;color:#d7e2f0;max-width:520px;margin-bottom:32px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{padding:14px 28px;border-radius:10px;font-weight:600;text-decoration:none;font-size:15px;display:inline-flex;align-items:center;gap:8px;transition:transform .18s,box-shadow .18s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.22)}
.btn-p{background:var(--accent);color:#1a1206}
.btn-s{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.32)}
.hero-visual{position:relative}
.hero-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:20px;backdrop-filter:blur(6px)}
.hero-card img{border-radius:12px;height:340px;width:100%;object-fit:cover}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(255,255,255,.14);background:rgba(0,0,0,.18)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding:0 24px}
.stat{padding:26px 16px;text-align:center;border-right:1px solid rgba(255,255,255,.12)}
.stat:last-child{border-right:none}
.stat .n{font-family:'Barlow Condensed';font-size:38px;font-weight:700;color:var(--accent);line-height:1}
.stat .l{font-size:13px;color:#c3d2e5;margin-top:6px}

/* ===== Sections ===== */
section{padding:84px 0}
.sec-head{max-width:680px;margin-bottom:44px}
.kicker{font-size:13px;letter-spacing:2px;text-transform:uppercase;color:var(--steel);font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.kicker::before{content:"";width:24px;height:2px;background:var(--accent)}
.sec-head h2{font-size:40px;color:var(--navy);line-height:1.1;margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:16.5px}

/* About */
.about{background:var(--bg-soft)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.about-txt h3{font-size:26px;color:var(--navy);margin-bottom:16px}
.about-txt p{color:var(--muted);margin-bottom:16px;font-size:16px}
.feats{list-style:none;display:grid;gap:12px;margin-top:22px}
.feats li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px}
.feats .ck{flex:none;width:22px;height:22px;border-radius:6px;background:rgba(245,166,35,.16);color:var(--accent);display:grid;place-items:center;font-weight:700;font-size:13px;margin-top:1px}
.about-img{border-radius:var(--radius);overflow:hidden;box-shadow:0 20px 50px rgba(11,37,69,.16);position:relative}
.about-img img{height:420px;width:100%;object-fit:cover}
.badge{position:absolute;left:18px;bottom:18px;background:var(--navy);color:#fff;padding:12px 18px;border-radius:10px}
.badge .y{font-family:'Barlow Condensed';font-size:28px;color:var(--accent);font-weight:700;line-height:1}
.badge .d{font-size:12px;color:#c3d2e5}

/* Products */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(11,37,69,.14);border-color:#cdd8e6}
.card .ph{background:#eef2f7;aspect-ratio:4/3;overflow:hidden}
.card .ph img{height:100%;width:100%;object-fit:cover;transition:transform .35s}
.card:hover .ph img{transform:scale(1.05)}
.card .bd{padding:18px 18px 20px}
.card .tag{font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:var(--steel);font-weight:700}
.card h3{font-size:20px;color:var(--navy);margin:6px 0 4px}
.card .code{font-size:13px;color:var(--muted);font-family:'Barlow Condensed';letter-spacing:1px}
.card .more{margin-top:14px;font-size:14px;font-weight:600;color:var(--steel);text-decoration:none;display:inline-flex;gap:6px;align-items:center}
.card{cursor:pointer}

/* Product pagination（每页 9 个，数据多了自动出现） */
.prod-pager{display:none;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;margin-top:34px}
.pg{min-width:46px;height:46px;padding:0 16px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--navy);font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .18s}
.pg:hover:not(:disabled){border-color:var(--navy);background:#f4f7fb;transform:translateY(-1px)}
.pg.on{background:var(--navy);border-color:var(--navy);color:#fff}
.pg:disabled{color:#b6c0cc;border-color:#e4e9f0;background:#f7f9fb;cursor:not-allowed}
.pg.pgstep{font-weight:700}
@media(max-width:560px){.prod-pager{gap:8px}.pg{min-width:42px;height:42px;padding:0 12px;font-size:14px}}

/* Product detail modal */
#prodModal{display:none}
#prodModal.open{display:block}
.pm-mask{position:fixed;inset:0;background:rgba(11,37,69,.55);backdrop-filter:blur(3px);z-index:99}
.pm-card{position:fixed;z-index:100;top:50%;left:50%;transform:translate(-50%,-50%);width:min(1080px,94vw);max-height:90vh;overflow:auto;background:#fff;border-radius:var(--radius);box-shadow:0 30px 80px rgba(11,37,69,.35);display:grid;grid-template-columns:48% 1fr}
.pm-x{position:absolute;top:12px;right:14px;z-index:2;width:38px;height:38px;border-radius:50%;border:none;background:rgba(255,255,255,.94);color:var(--navy);font-size:17px;cursor:pointer;box-shadow:0 4px 14px rgba(11,37,69,.22);display:grid;place-items:center}
.pm-x:hover{background:var(--accent);color:#1a1206}
.pm-img{background:var(--bg-soft);display:flex;align-items:center;justify-content:center;padding:18px;position:relative;cursor:zoom-in}
.pm-img img{width:100%;max-height:74vh;object-fit:contain}
.pm-img .pm-zoom{position:absolute;right:14px;bottom:14px;width:34px;height:34px;border-radius:50%;background:rgba(11,37,69,.82);color:#fff;font-size:16px;display:grid;place-items:center;pointer-events:none}
.pm-info{padding:34px 34px 32px}
.pm-info .tag{font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:var(--steel);font-weight:700}
.pm-info h3{font-size:26px;color:var(--navy);margin:6px 0 4px}
.pm-info .code{font-size:13.5px;color:var(--muted);font-family:'Barlow Condensed';letter-spacing:1px;margin-bottom:16px}
.pm-desc{color:var(--muted);font-size:15.5px;line-height:1.7;margin-bottom:18px}
.pm-feats{list-style:none;display:grid;gap:10px;margin-bottom:24px}
.pm-feats li{display:flex;gap:12px;align-items:flex-start;font-size:15px}
.pm-feats .ck{flex:none;width:22px;height:22px;border-radius:6px;background:rgba(245,166,35,.16);color:var(--accent);display:grid;place-items:center;font-weight:700;font-size:13px;margin-top:1px}
.pm-inq{border:none;cursor:pointer;font-family:inherit}
@media(max-width:767px){
  .pm-card{top:0;left:0;transform:none;width:100vw;max-height:100dvh;height:100dvh;border-radius:0;grid-template-columns:1fr;overflow:auto;display:block}
  .pm-img{padding:52px 16px 12px}
  .pm-info{padding:18px 20px 40px}
  .pm-info h3{font-size:22px}
}

/* CTA band */
.band{background:linear-gradient(115deg,var(--navy),var(--navy-2) 60%,var(--steel));color:#fff}
.band .wrap{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:56px 24px;flex-wrap:wrap}
.band h2{font-size:34px;line-height:1.15}
.band p{color:#cdd9ea;margin-top:8px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px}
.info{display:grid;gap:18px}
.info .row{display:flex;gap:14px;padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}
.info .ic{flex:none;width:42px;height:42px;border-radius:10px;background:var(--bg-soft);color:var(--steel);display:grid;place-items:center;font-size:19px}
.info .k{font-size:13px;color:var(--muted)}
.info .v{font-size:15.5px;font-weight:600;color:var(--navy);word-break:break-word}
.form{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.form h3{font-size:22px;color:var(--navy);margin-bottom:6px}
.form .sub{color:var(--muted);font-size:14px;margin-bottom:20px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:6px}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;font-size:14.5px;font-family:inherit;background:#fff}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--steel);box-shadow:0 0 0 3px rgba(28,75,130,.12)}
.submit{width:100%;background:var(--accent);color:#1a1206;border:none;padding:14px;border-radius:9px;font-weight:700;font-size:15px;cursor:pointer;font-family:inherit}
.submit:hover{filter:brightness(1.05)}
.form-note{margin-top:10px;font-size:13px;color:var(--steel);font-weight:600;display:none}
.form-note.ok{color:#15803d}
.form-note.err{color:#b91c1c}

/* Footer */
footer{background:var(--navy);color:#9fb3cc;padding:48px 0 26px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot-grid img{height:40px;margin-bottom:14px}
.foot-grid h4{color:#fff;font-size:15px;margin-bottom:14px;font-family:'Barlow Condensed';letter-spacing:1px}
.foot-grid a,.foot-grid p{color:#9fb3cc;display:block;margin-bottom:8px;text-decoration:none}
.foot-grid a:hover{color:var(--accent)}
.copy{padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#7e93ad}

/* Legal pages */
.legal-page{max-width:880px;margin:0 auto;padding:70px 24px}
.legal-page h1{font-size:42px;color:var(--navy);margin-bottom:8px}
.legal-page .updated{color:var(--muted);font-size:14px;margin-bottom:34px}
.legal-page h2{font-size:24px;color:var(--navy);margin:30px 0 12px}
.legal-page p,.legal-page li{color:var(--muted);font-size:15.5px;margin-bottom:12px}
.legal-page ul{padding-left:22px}
.legal-page a{color:var(--steel)}

@media(max-width:900px){
  .hero .wrap{grid-template-columns:1fr;gap:36px;padding:64px 24px 70px}
  .hero h1{font-size:42px}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:none}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .menu{display:none}
  .burger{display:block}
}
@media(max-width:560px){
  .prod-grid{grid-template-columns:1fr}
  .hero h1{font-size:34px}
  .sec-head h2{font-size:30px}
  .foot-grid{grid-template-columns:1fr}
}

/* ===== 图片放大灯箱（点击图片全屏查看：滚轮/双指缩放 · 拖动平移 · 双击放大） ===== */
.hero-card img,.about-img img{cursor:zoom-in}
.imgzoom{position:fixed;inset:0;z-index:300;background:rgba(6,14,26,.96);display:none;touch-action:none;overflow:hidden}
.imgzoom.open{display:block}
.iz-stage{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;overflow:hidden;cursor:grab}
.iz-stage.dragging{cursor:grabbing}
.iz-stage img{max-width:96vw;max-height:88vh;user-select:none;-webkit-user-drag:none;transform-origin:center center;will-change:transform}
.iz-bar{position:absolute;top:18px;right:18px;z-index:2;display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:12px;background:rgba(14,26,44,.88);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(8px);box-shadow:0 8px 24px rgba(0,0,0,.35)}
.iz-bar button{min-width:38px;height:38px;border:none;border-radius:9px;background:rgba(255,255,255,.20);color:#fff;font-size:17px;line-height:1;cursor:pointer;display:grid;place-items:center;font-family:inherit}
.iz-bar button:hover{background:var(--accent);color:#1a1206}
.iz-bar .iz-x:hover{background:#e0483c;color:#fff}
.iz-scale{min-width:56px;text-align:center;color:#fff;font-size:13px;font-family:'Barlow Condensed';letter-spacing:.5px}
.iz-tip{position:absolute;left:0;right:0;bottom:18px;text-align:center;color:#9fb3cc;font-size:13px;pointer-events:none}
@media(max-width:560px){.iz-tip{font-size:11.5px}.iz-bar{top:12px;right:12px;gap:6px}.iz-bar button{min-width:34px;height:34px}}