/* Ouzhilun Hardware Group — English B2B site */
:root{
  --navy:#0b1f33;
  --navy-2:#12324c;
  --navy-3:#1b4568;
  --ink:#122536;
  --body:#4d5f70;
  --muted:#7a8b99;
  --line:#e0e7ee;
  --bg:#f6f8fb;
  --white:#ffffff;
  --accent:#ff6a13;
  --accent-dark:#e25505;
  --radius:14px;
  --shadow:0 1px 2px rgba(11,31,51,.05), 0 10px 30px rgba(11,31,51,.06);
  --shadow-lg:0 18px 50px rgba(11,31,51,.14);
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Inter","Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.62;
  color:var(--body);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--navy-3);text-decoration:none}
a:hover{color:var(--accent)}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.2vw,3.15rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
h3{font-size:1.13rem;margin-bottom:.35em}
p{margin:0 0 1em}
ul{margin:0;padding:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.eyebrow{
  font-size:.76rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin:0 0 .8em;
}
.lead{font-size:1.07rem;color:var(--body)}
section{padding:78px 0}
.section-head{max-width:760px;margin-bottom:44px}
.center{text-align:center;margin-left:auto;margin-right:auto}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  padding:.85em 1.5em;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;transition:.18s ease;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-outline{border-color:rgba(255,255,255,.45);color:#fff}
.btn-outline:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2);color:#fff;transform:translateY(-1px)}
.btn-line{border-color:var(--line);color:var(--ink);background:#fff}
.btn-line:hover{border-color:var(--navy-2);color:var(--navy)}
.arrow::after{content:"→";font-weight:700}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(11,31,51,.07)}
.header-inner{display:flex;align-items:center;gap:26px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand img{height:38px;width:auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:26px}
.nav a{font-size:.94rem;font-weight:600;color:var(--ink)}
.nav a:hover{color:var(--accent)}
.nav .btn{padding:.66em 1.2em}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:10px;padding:.45em .6em;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0}

/* ---------- hero ---------- */
.hero{
  position:relative;color:#e8eef5;padding:96px 0 84px;
  background:
    linear-gradient(180deg,rgba(11,31,51,.96),rgba(9,25,41,.99)),
    radial-gradient(1100px 460px at 82% -10%,rgba(255,106,19,.32),transparent 60%),
    var(--navy);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.35) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,#000,transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 85%);
}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.hero h1{color:#fff;max-width:16ch}
.hero p{color:#c3d2e0;font-size:1.08rem;max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-media{
  border:1px solid rgba(255,255,255,.16);border-radius:18px;overflow:hidden;
  background:rgba(255,255,255,.06);box-shadow:var(--shadow-lg);
}
.hero-media img{width:100%}
.hero-media figcaption{
  font-size:.8rem;color:#9fb3c6;padding:10px 14px;border-top:1px solid rgba(255,255,255,.12);
}
.stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  margin-top:56px;padding-top:32px;border-top:1px solid rgba(255,255,255,.16);
}
.stat b{display:block;color:#fff;font-size:1.6rem;letter-spacing:-.02em}
.stat span{font-size:.86rem;color:#a9bccd}

/* ---------- trust strip ---------- */
.trust{background:var(--bg);border-bottom:1px solid var(--line);padding:24px 0}
.trust-inner{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.trust-item{display:flex;gap:11px;align-items:flex-start;font-size:.9rem;color:var(--ink);font-weight:600}
.trust-item svg{flex:0 0 20px;margin-top:2px;color:var(--accent)}

/* ---------- cards / grid ---------- */
.grid{display:grid;gap:22px}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;transition:.2s ease;
}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:#cfdae5}
.card .ico{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:#eef3f8;color:var(--navy-2);margin-bottom:16px;
}
.card p{font-size:.94rem;margin-bottom:.7em}
.tick{list-style:none;font-size:.9rem}
.tick li{position:relative;padding-left:19px;margin-bottom:.35em;color:var(--body)}
.tick li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;
  background:var(--accent);
}
.card-link{font-size:.9rem;font-weight:600;color:var(--accent)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split.reverse .split-media{order:2}
.split-media img{border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.checklist{list-style:none;margin:22px 0 0}
.checklist li{display:flex;gap:12px;margin-bottom:14px;font-size:.96rem}
.checklist svg{flex:0 0 22px;color:var(--accent);margin-top:3px}
.checklist b{color:var(--ink)}

/* ---------- process ---------- */
.process{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:step}
.step{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;
}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  display:block;font-size:.8rem;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:8px;
}
.step b{display:block;color:var(--ink);font-size:.98rem;margin-bottom:.25em}
.step span{font-size:.87rem}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:640px}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f2f6fa;color:var(--ink);font-size:.82rem;letter-spacing:.06em;text-transform:uppercase}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fafcfe}
td strong{color:var(--ink)}

/* ---------- badges / chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{
  font-size:.85rem;font-weight:600;color:var(--navy-2);background:#eef3f8;
  border:1px solid #dbe5ee;border-radius:999px;padding:.4em .95em;
}
.badge-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.badge{
  display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;background:#fff;font-size:.9rem;color:var(--ink);font-weight:600;
}
.badge svg{color:var(--accent)}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.gallery figure{margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#fff;padding:8px}
.gallery figcaption{font-size:.85rem;padding:12px 16px;border-top:1px solid var(--line);color:var(--body)}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--navy) 0%,var(--navy-2) 60%,var(--navy-3) 100%);
  color:#dce7f2;border-radius:20px;padding:46px;display:grid;
  grid-template-columns:1.4fr 1fr;gap:34px;align-items:center;
}
.cta-band h2{color:#fff;margin-bottom:.3em}
.cta-band p{color:#b9cbdc;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:start}
.info-list{list-style:none;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.info-list li{display:flex;gap:14px;padding:18px 20px;border-bottom:1px solid var(--line);font-size:.95rem}
.info-list li:last-child{border-bottom:none}
.info-list svg{flex:0 0 20px;color:var(--accent);margin-top:4px}
.info-list b{display:block;color:var(--ink);font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:2px}
form.inquiry{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.86rem;font-weight:600;color:var(--ink);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:.72em .85em;border:1px solid var(--line);border-radius:10px;
  font:inherit;font-size:.94rem;color:var(--ink);background:#fbfdff;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--navy-3);background:#fff;box-shadow:0 0 0 3px rgba(27,69,104,.1);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-size:.82rem;color:var(--muted);margin:12px 0 0}
.required{color:var(--accent)}
.tbc{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;
  background:#fff3e6;color:#a8480a;border:1px solid #ffd7b0;border-radius:6px;padding:1px 6px;margin-left:6px;
  vertical-align:middle;
}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);color:#93a8bb;padding:64px 0 28px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.site-footer h4{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
.site-footer a{color:#a9bccd}
.site-footer a:hover{color:#fff}
.footer-list{list-style:none}
.footer-list li{margin-bottom:.6em}
.footer-brand{color:#fff;font-weight:700;font-size:1.05rem;margin-bottom:10px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.13);margin-top:44px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:.82rem;color:#7f93a6;
}
.footer-icp{display:flex;flex-wrap:wrap;gap:16px}
.footer-logo{filter:brightness(0) invert(1);opacity:.92;height:32px;width:auto;margin-bottom:14px}

/* ---------- page hero (inner pages) ---------- */
.page-hero{
  background:linear-gradient(180deg,rgba(11,31,51,.96),rgba(9,25,41,.99)),var(--navy);
  color:#c3d2e0;padding:62px 0 54px;
}
.page-hero h1{color:#fff;margin-bottom:.35em}
.page-hero p{max-width:70ch;margin:0}
.breadcrumb{font-size:.82rem;color:#8ba0b4;margin-bottom:14px}
.breadcrumb a{color:#a9bccd}

/* ---------- util ---------- */
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.mt-32{margin-top:32px}.mt-48{margin-top:48px}
.small{font-size:.86rem}
.note{
  border-left:3px solid var(--accent);background:#fff8f2;border-radius:0 10px 10px 0;
  padding:16px 20px;font-size:.9rem;
}
.anchor-nav{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:38px}
.anchor-nav a{
  font-size:.86rem;font-weight:600;border:1px solid var(--line);border-radius:999px;
  padding:.4em 1em;background:#fff;color:var(--ink);
}
.anchor-nav a:hover{border-color:var(--accent);color:var(--accent)}
.cat-block{padding:44px 0;border-top:1px solid var(--line)}
.cat-block:first-of-type{border-top:none}
.cat-head{display:flex;flex-wrap:wrap;gap:16px;align-items:baseline;margin-bottom:18px}
.cat-head h2{margin:0}
.cat-head span{font-size:.86rem;color:var(--muted);font-weight:600}

@media (max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .g-4,.process,.trust-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g-3,.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split,.contact-grid,.cta-band{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:0}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
}
@media (max-width:720px){
  section{padding:56px 0}
  .nav{display:none}
  .nav.is-open{
    display:flex;position:absolute;top:74px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:flex-start;gap:4px;padding:16px 22px 22px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);
  }
  .nav.is-open a{padding:10px 0;width:100%;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .g-2,.g-3,.g-4,.gallery,.process,.trust-inner,.field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .brand img{height:32px}
}
@media print{
  .site-header,.cta-band,.hero-actions{display:none}
}