:root{
  --ink:#14202e;--muted:#5b6b7c;--line:#e3e8ee;--bg:#f7f9fb;--card:#fff;
  --blue:#0f4c81;--blue-d:#0a3559;--amber:#f5a623;--green:#1e8e5a;--red:#c0392b;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);line-height:1.7;background:var(--bg)}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* header */
.site-header{background:var(--blue-d);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 1px 4px rgba(0,0,0,.2)}
.hd{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:20px;font-weight:700;color:#fff;letter-spacing:.5px}
.logo span{color:var(--amber)}
nav.main-nav{display:flex;gap:22px;flex-wrap:wrap}
nav.main-nav a{color:#dce6f0;font-size:14px;font-weight:500}
nav.main-nav a:hover,nav.main-nav a.on{color:var(--amber)}
.hd-cta{background:var(--amber);color:#14202e!important;font-weight:700;padding:8px 16px;border-radius:6px;font-size:14px}
.menu-btn{display:none;background:none;border:1px solid #fff3;color:#fff;border-radius:6px;padding:6px 10px;font-size:14px;cursor:pointer}

/* hero */
.hero{position:relative;color:#fff;min-height:520px;display:flex;align-items:center;background:#0a3559}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.hero .wrap{position:relative;z-index:2;padding:70px 20px}
.hero h1{font-size:40px;line-height:1.25;max-width:720px;text-shadow:0 2px 8px rgba(0,0,0,.45)}
.hero p{max-width:640px;margin:16px 0 26px;font-size:17px;color:#eaf1f8;text-shadow:0 1px 6px rgba(0,0,0,.5)}
.btn{display:inline-block;padding:12px 26px;border-radius:8px;font-weight:700;font-size:15px}
.btn-amber{background:var(--amber);color:#14202e!important}
.btn-line{border:2px solid #fff;color:#fff!important;margin-left:12px}
.btn-blue{background:var(--blue);color:#fff!important}

/* sections */
section{padding:56px 0}
.sec-alt{background:var(--card)}
h2.sec{font-size:28px;margin-bottom:8px}
p.sec-sub{color:var(--muted);margin-bottom:30px;max-width:760px}
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(20,40,60,.1)}
.card .body{padding:18px}
.card h3{font-size:17px;margin-bottom:6px}
.card p{font-size:14px;color:var(--muted)}
.card .ph{height:180px;background:linear-gradient(135deg,#dfe8f1,#c6d6e6);display:flex;align-items:center;justify-content:center;color:#7d93a8;font-size:13px;text-align:center;padding:12px}
.num{font-size:34px;font-weight:800;color:var(--blue)}
.stat{text-align:center;padding:22px 12px}
.stat .l{font-size:13px;color:var(--muted)}

/* tables */
.tbl{width:100%;border-collapse:collapse;background:var(--card);font-size:14px;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.tbl th{background:var(--blue);color:#fff;text-align:left;padding:11px 14px;font-weight:600}
.tbl td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:nth-child(even){background:#f4f7fa}
.tag-pill{display:inline-block;background:#eaf2fb;color:var(--blue);font-size:12px;font-weight:600;padding:2px 10px;border-radius:10px;margin:2px 4px 2px 0}

/* case cards */
.case{border-left:4px solid var(--amber)}

/* faq */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:12px}
.faq summary{font-weight:600;cursor:pointer;font-size:15px}
.faq p{margin-top:8px;color:var(--muted);font-size:14.5px}

/* CTA band */
.cta-band{background:var(--blue-d);color:#fff;text-align:center}
.cta-band h2{font-size:26px;margin-bottom:10px}
.cta-band p{color:#c9d8e6;margin-bottom:22px}

/* breadcrumb */
.crumb{font-size:13px;color:var(--muted);padding:14px 0}
.crumb a{color:var(--muted)}

/* article */
article.prose{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:36px;max-width:860px}
article.prose h2{font-size:22px;margin:26px 0 10px}
article.prose h3{font-size:17px;margin:18px 0 8px}
article.prose p,article.prose li{font-size:15.5px;color:#33475c}
article.prose ul,article.prose ol{padding-left:22px;margin:10px 0}
.meta-line{color:var(--muted);font-size:13px;margin-bottom:18px}

/* page hero (subpages) */
.sub-hero{background:linear-gradient(120deg,var(--blue-d),var(--blue));color:#fff;padding:54px 0}
.sub-hero h1{font-size:32px;max-width:760px}
.sub-hero p{color:#d7e3ef;max-width:720px;margin-top:10px}

/* footer */
.site-footer{background:#0d1b2a;color:#9fb2c4;padding:44px 0 24px;font-size:14px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:12px}
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px}
.site-footer a{color:#9fb2c4}
.site-footer a:hover{color:var(--amber)}
.copy{border-top:1px solid #24374a;margin-top:30px;padding-top:18px;font-size:12.5px;color:#6d8199}

/* whatsapp float */
.wa-float{position:fixed;right:18px;bottom:18px;width:54px;height:54px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;z-index:99;box-shadow:0 4px 14px rgba(0,0,0,.28)}
.wa-float svg{width:30px;height:30px;fill:#fff}
.wa-float:hover{transform:scale(1.06)}

/* inquiry form */
.form-grid{display:grid;gap:14px;max-width:640px}
.form-grid label{font-size:13.5px;font-weight:600;display:block;margin-bottom:4px}
.form-grid input,.form-grid select,.form-grid textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14.5px;font-family:inherit;background:#fff}
.form-grid .two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){.form-grid .two{grid-template-columns:1fr}}

@media(max-width:820px){
  .hero h1{font-size:30px}
  nav.main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--blue-d);flex-direction:column;padding:16px 20px;gap:14px}
  nav.main-nav.open{display:flex}
  .menu-btn{display:block}
  .hd-cta{display:none}
}

/* ---- real client logo wall ---- */
.logo-wall{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px;margin-top:26px}
.logo-wall .lg{background:#fff;border:1px solid var(--line,#e5e7eb);border-radius:10px;display:flex;align-items:center;justify-content:center;padding:10px;height:76px;transition:box-shadow .2s}
.logo-wall .lg:hover{box-shadow:0 6px 18px rgba(0,0,0,.08)}
.logo-wall img{max-width:100%;max-height:56px;object-fit:contain}
.imgstrip{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:8px}
.imgstrip img{width:100%;height:230px;object-fit:cover;border-radius:12px;box-shadow:0 4px 14px rgba(0,0,0,.08)}
.card.case img{width:100%;height:170px;object-fit:cover;border-radius:10px 10px 0 0}

/* ---- product catalog ---- */
.ptabs{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 22px}
.ptab{border:1px solid #d1d5db;background:#fff;border-radius:999px;padding:7px 14px;font-size:14px;cursor:pointer;transition:all .15s}
.ptab:hover{border-color:#0e7490}
.ptab.active{background:#0e7490;border-color:#0e7490;color:#fff}
.btn-sm{padding:7px 14px;font-size:13px;margin-top:8px;display:inline-block}
.pcard img{width:100%;height:190px;object-fit:contain;background:#fff;border-radius:10px 10px 0 0;padding:8px}
.pcard .body{padding:14px 16px 18px}
.pcard h3{font-size:15.5px;margin:8px 0 6px;line-height:1.35}
.pcard p{font-size:13px;color:#4b5563;margin-bottom:4px}

/* ---- alibaba sku cards ---- */
.skucard .body{padding:14px 16px 18px}
.skucard h3{font-size:14.5px;margin:8px 0 10px;line-height:1.4;min-height:58px}
.skumeta{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.skumeta .price{font-weight:700;color:#b45309;font-size:15px}
.skumeta .moq{font-size:12.5px;color:#6b7280}

/* ---- product detail pages ---- */
.plink{color:inherit;text-decoration:none;display:block}
.pcard h3 a.plink:hover,.skucard h3 a.plink:hover{color:var(--blue)}
.pd{display:grid;grid-template-columns:minmax(280px,420px) 1fr;gap:36px;align-items:start}
@media(max-width:760px){.pd{grid-template-columns:1fr}}
.pd-img{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.pd-img img{border-radius:8px;max-height:420px;object-fit:contain;margin:0 auto}
.imgnote{font-size:12.5px;color:var(--muted);margin-top:8px}
.pd-info h1{font-size:26px;line-height:1.35;margin:10px 0 12px}
.pd-meta{margin:6px 0 4px}
.pd-sub{color:var(--muted);margin:10px 0 18px}
.pd-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.pd-points{list-style:none;margin-top:6px}
.pd-points li{padding:4px 0 4px 24px;position:relative;color:var(--muted);font-size:14.5px}
.pd-points li:before{content:"✓";position:absolute;left:2px;color:var(--green);font-weight:700}
.plist{list-style:none;max-width:860px}
.plist li{padding:7px 0 7px 26px;position:relative;border-bottom:1px dashed var(--line)}
.plist li:last-child{border-bottom:none}
.plist li:before{content:"▸";position:absolute;left:4px;color:var(--blue);font-weight:700}
.plist.two-col{columns:2;column-gap:44px}
@media(max-width:680px){.plist.two-col{columns:1}}
.rgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.rcard{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;font-size:13.5px;color:var(--ink)!important}
.rcard:hover{box-shadow:0 6px 18px rgba(20,40,60,.12);transform:translateY(-2px)}
.rcard img{height:130px;object-fit:contain;background:#fff;padding:8px;width:100%}
.rcard span{display:block;padding:10px 12px;line-height:1.45}

/* ---- category hub chips ---- */
.catchips{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.cat-chip{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink)!important;font-size:14px;text-decoration:none;line-height:1}
.cat-chip b{display:inline-block;min-width:20px;text-align:center;padding:2px 6px;border-radius:999px;background:var(--blue);color:#fff;font-size:12px;font-weight:600}
.cat-chip:hover{border-color:var(--blue);box-shadow:0 4px 12px rgba(20,40,60,.10)}

/* keep <picture> wrappers out of the layout box */
picture{display:contents}

/* hero trust points strip */
.hero-trust{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:18px;font-size:13.5px}
.hero-trust span{position:relative;padding-left:20px;opacity:.95}
.hero-trust span::before{content:"✓";position:absolute;left:0;font-weight:700;color:#f5a623}
@media (max-width:768px){.hero-trust{gap:6px 14px;font-size:12.5px}}

/* quote strip — horizontal CTA variant (differs from bottom cta-band on mobile) */
.quote-strip{padding:44px 0;border-top:1px solid rgba(0,0,0,.08)}
.quote-strip .qs{display:flex;align-items:center;gap:28px;justify-content:space-between}
.quote-strip h2{font-size:24px;margin:0 0 8px}
.quote-strip p{margin:0;max-width:60ch;color:#444}
.quote-strip .qs-btns{display:flex;gap:12px;flex-shrink:0}
@media (max-width:820px){
  .quote-strip .qs{flex-direction:column;align-items:flex-start;gap:16px}
  .quote-strip h2{font-size:20px}
  .quote-strip .qs-btns{flex-wrap:wrap}
}