/* ============================================
   HAIZHONG GLOBAL — Shared Stylesheet
   ============================================ */

:root{
  --navy:#101826;
  --navy-2:#182436;
  --amber:#E0A23D;
  --amber-dark:#C1832A;
  --gray:#7C8894;
  --offwhite:#F1F0EC;
  --white:#ffffff;
  --border:#E4E2DB;
}

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

html{scroll-behavior:smooth;}

body{
  font-family:'Inter',-apple-system,sans-serif;
  color:var(--navy);
  background:var(--white);
  line-height:1.6;
  font-size:16px;
}

h1,h2,h3,h4{
  font-family:'Oswald',sans-serif;
  text-transform:uppercase;
  letter-spacing:0.02em;
  line-height:1.2;
}

.mono{font-family:'IBM Plex Mono',monospace;}

a{text-decoration:none; color:inherit;}
img{max-width:100%; display:block;}
ul{list-style:none;}

.wrap{max-width:1180px; margin:0 auto; padding:0 24px;}

/* Visible keyboard focus */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:2px;
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important;}
}

/* ============ Header / Nav ============ */
header{background:var(--navy); color:var(--white); position:sticky; top:0; z-index:100;}
.headbar{display:flex; align-items:center; justify-content:space-between; padding:16px 24px; max-width:1180px; margin:0 auto;}
.logo{font-family:'Oswald',sans-serif; font-weight:700; font-size:20px; letter-spacing:0.05em;}
.logo span{color:var(--amber);}
.navwrap{display:flex; align-items:center; gap:32px;}

nav.main-nav{display:flex; gap:26px; font-size:14px; font-weight:500;}
nav.main-nav > .nav-item{position:relative;}
nav.main-nav a{opacity:0.85; transition:opacity .2s, color .2s; display:inline-block; padding:6px 0;}
nav.main-nav a:hover{opacity:1; color:var(--amber);}
nav.main-nav a.active{color:var(--amber); opacity:1;}

.has-dropdown{display:flex; align-items:center; gap:4px; cursor:pointer;}
.dropdown{
  position:absolute; top:100%; left:0; background:var(--navy-2);
  min-width:230px; border-radius:4px; padding:8px 0; margin-top:10px;
  box-shadow:0 14px 28px rgba(0,0,0,0.35);
  opacity:0; visibility:hidden; transform:translateY(6px);
  transition:opacity .18s ease, transform .18s ease, visibility .18s;
}
.nav-item:hover .dropdown, .nav-item:focus-within .dropdown{
  opacity:1; visibility:visible; transform:translateY(0);
}
.dropdown a{display:block; padding:10px 18px; font-size:13.5px; opacity:0.9; white-space:nowrap;}
.dropdown a:hover{background:rgba(255,255,255,0.06); opacity:1;}

.cta-btn{background:var(--amber); color:var(--navy); font-weight:700; font-size:13px; letter-spacing:0.04em; text-transform:uppercase; padding:11px 22px; border-radius:3px; transition:background .2s; white-space:nowrap;}
.cta-btn:hover{background:var(--amber-dark);}

.nav-toggle{display:none; background:none; border:none; color:var(--white); font-size:26px; cursor:pointer; line-height:1;}

/* ============ Hero (home) ============ */
.hero{background:var(--navy); color:var(--white); position:relative; overflow:hidden; padding:64px 24px 90px;}
.hero-inner{max-width:1180px; margin:0 auto; position:relative; z-index:2;}
.eyebrow{color:var(--amber); font-family:'IBM Plex Mono',monospace; font-size:13px; letter-spacing:0.12em; text-transform:uppercase; margin-bottom:18px;}
.hero h1{font-size:44px; line-height:1.15; max-width:680px; margin-bottom:20px; font-weight:600;}
.hero p{font-size:17px; color:#C7CDD6; max-width:560px; margin-bottom:32px;}
.hero-buttons{display:flex; gap:14px; flex-wrap:wrap;}
.btn-outline{border:1.5px solid rgba(255,255,255,0.4); color:var(--white); font-weight:600; font-size:14px; letter-spacing:0.03em; text-transform:uppercase; padding:13px 26px; border-radius:3px; transition:border-color .2s, color .2s; display:inline-block;}
.btn-outline:hover{border-color:var(--amber); color:var(--amber);}
.btn-primary{background:var(--amber); color:var(--navy); font-weight:700; font-size:14px; letter-spacing:0.03em; text-transform:uppercase; padding:13px 26px; border-radius:3px; display:inline-block; transition:background .2s;}
.btn-primary:hover{background:var(--amber-dark);}
.route-svg{position:absolute; right:-40px; top:0; width:640px; height:100%; opacity:0.9; z-index:1; pointer-events:none;}

/* ============ Page header (interior pages) ============ */
.page-header{background:var(--navy); color:var(--white); padding:56px 24px 52px; position:relative; overflow:hidden;}
.page-header .wrap{position:relative; z-index:2;}
.page-header h1{font-size:34px; margin-bottom:12px;}
.page-header p{color:#C7CDD6; font-size:15.5px; max-width:600px;}
.breadcrumb{font-family:'IBM Plex Mono',monospace; font-size:12px; color:#8B94A0; margin-bottom:16px; letter-spacing:0.04em;}
.breadcrumb a{color:#AEB6C0;}
.breadcrumb a:hover{color:var(--amber);}

/* ============ Trust bar ============ */
.trust{background:var(--navy-2); border-top:1px solid rgba(255,255,255,0.08);}
.trust-inner{max-width:1180px; margin:0 auto; display:grid; grid-template-columns:repeat(4,1fr); padding:26px 24px;}
.trust-item{color:#DCE1E7; font-size:13px; font-family:'IBM Plex Mono',monospace; text-align:center; padding:0 10px; border-left:1px solid rgba(255,255,255,0.1);}
.trust-item:first-child{border-left:none;}

/* ============ Sections ============ */
.section{padding:80px 24px;}
.section-tight{padding:56px 24px;}
.section-head{text-align:center; max-width:640px; margin:0 auto 48px;}
.section-head .eyebrow{color:var(--amber-dark); text-align:center;}
.section-head h2{font-size:32px; color:var(--navy); margin-bottom:12px;}
.section-head p{color:var(--gray); font-size:15px;}
.bg-offwhite{background:var(--offwhite);}
.bg-navy{background:var(--navy); color:var(--white);}
.bg-navy .section-head h2{color:var(--white);}
.bg-navy .section-head p{color:#AEB6C0;}

/* ============ Product cards / grid ============ */
.grid6{display:grid; grid-template-columns:repeat(3,1fr); gap:22px; max-width:1180px; margin:0 auto;}
.card{background:var(--white); border:1px solid var(--border); border-radius:4px; overflow:hidden; transition:transform .2s, box-shadow .2s;}
.card:hover{transform:translateY(-3px); box-shadow:0 10px 24px rgba(16,24,38,0.08);}
.card-img{height:160px; background:linear-gradient(135deg,#2A3A52,#101826); position:relative; display:flex; align-items:center; justify-content:center; overflow:hidden;}
.card-img img{width:100%; height:100%; object-fit:cover;}
.card-img .tag{position:absolute; top:10px; left:10px; background:var(--amber); color:var(--navy); font-family:'IBM Plex Mono',monospace; font-size:11px; padding:3px 8px; border-radius:2px; font-weight:600; z-index:2;}
.card-body{padding:18px 20px 22px;}
.card-body h3{font-size:17px; color:var(--navy); margin-bottom:8px; letter-spacing:0.01em;}
.card-body p{font-size:13.5px; color:var(--gray); margin-bottom:14px; line-height:1.55;}
.card-link{font-size:13px; font-weight:600; color:var(--amber-dark); text-transform:uppercase; letter-spacing:0.03em; display:inline-flex; align-items:center; gap:6px;}
.card-link:after{content:"→"; transition:transform .2s;}
.card:hover .card-link:after{transform:translateX(3px);}

/* ============ Why-choose grid ============ */
.why-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:28px; max-width:1180px; margin:0 auto;}
.why-item{padding:0 6px;}
.why-num{font-family:'IBM Plex Mono',monospace; color:var(--amber-dark); font-size:13px; margin-bottom:10px; font-weight:600;}
.why-item h3{font-size:16px; color:var(--navy); margin-bottom:10px; text-transform:none; letter-spacing:0;}
.why-item p{font-size:13.5px; color:var(--gray); line-height:1.6;}

/* ============ Markets ============ */
.market-tags{display:flex; justify-content:center; gap:16px; flex-wrap:wrap; margin-top:8px;}
.market-tag{border:1px solid rgba(255,255,255,0.18); padding:12px 26px; border-radius:3px; font-family:'IBM Plex Mono',monospace; font-size:14px; letter-spacing:0.04em; display:flex; align-items:center; gap:10px;}
.market-tag .dot{width:6px; height:6px; background:var(--amber); border-radius:50%;}

/* ============ Final CTA ============ */
.final-cta{background:var(--amber); text-align:center; padding:70px 24px;}
.final-cta h2{font-size:30px; color:var(--navy); margin-bottom:14px;}
.final-cta p{color:#4A3B1C; max-width:520px; margin:0 auto 28px; font-size:15px;}
.final-cta .btn-primary{background:var(--navy); color:var(--white);}
.final-cta .btn-primary:hover{background:var(--navy-2);}
.final-cta .btn-outline{border-color:rgba(16,24,38,0.4); color:var(--navy);}
.final-cta .btn-outline:hover{border-color:var(--navy); color:var(--navy);}
.final-cta .hero-buttons{justify-content:center;}

/* ============ Generic content / prose ============ */
.prose{max-width:760px; margin:0 auto;}
.prose h2{font-size:24px; color:var(--navy); margin:36px 0 14px;}
.prose h2:first-child{margin-top:0;}
.prose p{font-size:15.5px; color:#3A4452; margin-bottom:16px;}
.prose ul{margin:0 0 16px 0;}
.prose ul li{font-size:15.5px; color:#3A4452; margin-bottom:10px; padding-left:22px; position:relative;}
.prose ul li:before{content:"—"; position:absolute; left:0; color:var(--amber-dark);}
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:40px; max-width:1180px; margin:0 auto;}
.two-col .prose{max-width:none;}

/* ============ Applications tags ============ */
.app-tags{display:flex; flex-wrap:wrap; gap:10px; margin:18px 0 28px;}
.app-tag{background:var(--offwhite); border:1px solid var(--border); color:var(--navy); font-size:13px; font-family:'IBM Plex Mono',monospace; padding:8px 14px; border-radius:3px;}

/* ============ Sub-type cards (product detail pages) ============ */
.subtype-list{display:grid; grid-template-columns:repeat(2,1fr); gap:20px; max-width:900px; margin:0 auto 12px;}
.subtype-card{background:var(--offwhite); border:1px solid var(--border); border-radius:4px; padding:22px 24px;}
.subtype-card h4{font-size:15.5px; color:var(--navy); text-transform:none; letter-spacing:0; margin-bottom:8px;}
.subtype-card p{font-size:14px; color:var(--gray); line-height:1.6;}

/* ============ Product image placeholder ============ */
.product-hero-img{max-width:900px; margin:0 auto 44px; border-radius:4px; overflow:hidden; border:1px solid var(--border); background:var(--offwhite); aspect-ratio:4/2.6; display:flex; align-items:center; justify-content:center;}
.product-hero-img img{width:100%; height:100%; object-fit:cover;}
.img-placeholder{color:var(--gray); font-family:'IBM Plex Mono',monospace; font-size:12px; text-align:center; padding:20px;}

/* ============ CTA banner (product pages) ============ */
.inline-cta{background:var(--navy); color:var(--white); border-radius:4px; padding:34px 30px; max-width:900px; margin:0 auto; text-align:center;}
.inline-cta p{font-size:15px; color:#DCE1E7; margin-bottom:18px;}

/* ============ Who we serve ============ */
.serve-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:22px; max-width:1180px; margin:0 auto;}
.serve-card{text-align:center; padding:30px 18px; border:1px solid var(--border); border-radius:4px;}
.serve-card h3{font-size:15px; color:var(--navy); margin-bottom:0; text-transform:none; letter-spacing:0;}

/* ============ Blog ============ */
.blog-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:24px; max-width:1000px; margin:0 auto;}
.blog-card{border:1px solid var(--border); border-radius:4px; padding:26px 26px 24px; transition:box-shadow .2s, transform .2s;}
.blog-card:hover{transform:translateY(-3px); box-shadow:0 10px 24px rgba(16,24,38,0.08);}
.blog-card .kw{font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--amber-dark); text-transform:uppercase; letter-spacing:0.04em; margin-bottom:10px; display:block;}
.blog-card h3{font-size:18px; color:var(--navy); margin-bottom:10px; text-transform:none; letter-spacing:0; line-height:1.35;}
.blog-card p{font-size:13.5px; color:var(--gray); margin-bottom:14px; line-height:1.6;}
.article-body{max-width:720px; margin:0 auto;}
.article-meta{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--amber-dark); text-transform:uppercase; letter-spacing:0.05em; margin-bottom:18px;}

/* ============ Contact page ============ */
.contact-grid{display:grid; grid-template-columns:1fr 1.2fr; gap:48px; max-width:1080px; margin:0 auto;}
.contact-info h3{font-size:15px; text-transform:none; letter-spacing:0; color:var(--navy); margin:22px 0 8px;}
.contact-info h3:first-child{margin-top:0;}
.contact-info p, .contact-info a{font-size:14.5px; color:var(--gray); display:block;}
.contact-info a:hover{color:var(--amber-dark);}
.contact-info .wa-link{color:var(--amber-dark); font-weight:600;}

form.contact-form{display:grid; gap:16px;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
.contact-form label{font-size:12.5px; font-weight:600; text-transform:uppercase; letter-spacing:0.04em; color:var(--navy); margin-bottom:6px; display:block;}
.contact-form input, .contact-form select, .contact-form textarea{
  width:100%; border:1px solid var(--border); border-radius:3px; padding:11px 13px;
  font-family:'Inter',sans-serif; font-size:14.5px; color:var(--navy); background:var(--white);
  transition:border-color .2s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus{
  border-color:var(--amber); outline:none;
}
.contact-form textarea{resize:vertical; min-height:120px;}
.contact-form button{
  background:var(--amber); color:var(--navy); font-weight:700; font-size:14px; letter-spacing:0.03em;
  text-transform:uppercase; padding:14px 28px; border-radius:3px; border:none; cursor:pointer;
  transition:background .2s; justify-self:start;
}
.contact-form button:hover{background:var(--amber-dark);}
.form-note{font-size:12.5px; color:var(--gray); margin-top:4px;}
.form-status{font-size:14px; font-weight:600; padding:2px 0; min-height:20px;}
.form-status.success{color:#1D8348;}
.form-status.error{color:#B23A2E;}
.form-status.sending{color:var(--gray);}
.contact-form button[disabled]{opacity:0.6; cursor:not-allowed;}

/* ============ Footer ============ */
footer{background:var(--navy-2); color:#AEB6C0; padding:56px 24px 28px; font-size:13.5px;}
.foot-grid{display:grid; grid-template-columns:2fr 1fr 1fr 1.3fr; gap:36px; max-width:1180px; margin:0 auto 36px;}
.foot-grid h4{color:var(--white); font-family:'Oswald',sans-serif; font-size:13px; letter-spacing:0.06em; text-transform:uppercase; margin-bottom:16px;}
.foot-grid .logo{margin-bottom:14px; display:block;}
.foot-grid p{color:#8B94A0; line-height:1.7;}
.foot-links a{display:block; color:#AEB6C0; margin-bottom:9px; transition:color .2s;}
.foot-links a:hover{color:var(--amber);}
.foot-bottom{border-top:1px solid rgba(255,255,255,0.08); max-width:1180px; margin:0 auto; padding-top:22px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; color:#6E7783; font-size:12.5px;}

/* ============ WhatsApp float ============ */
.wa-float{position:fixed; bottom:22px; right:22px; background:#25D366; width:56px; height:56px; border-radius:50%; display:flex; align-items:center; justify-content:center; box-shadow:0 6px 18px rgba(0,0,0,0.25); z-index:200; transition:transform .2s;}
.wa-float:hover{transform:scale(1.06);}
.wa-float svg{width:28px; height:28px; fill:white;}

/* ============ Responsive ============ */
@media(max-width:900px){
  nav.main-nav{
    position:fixed; top:64px; left:0; right:0; bottom:0; background:var(--navy);
    flex-direction:column; gap:0; padding:10px 24px 30px;
    transform:translateX(-100%); transition:transform .25s ease; overflow-y:auto;
  }
  nav.main-nav.open{transform:translateX(0);}
  nav.main-nav .nav-item{width:100%; border-bottom:1px solid rgba(255,255,255,0.08);}
  nav.main-nav > .nav-item > a{padding:16px 0; width:100%;}
  .dropdown{position:static; opacity:1; visibility:visible; transform:none; background:none; box-shadow:none; margin-top:0; padding:0 0 10px 14px; display:none;}
  .has-dropdown.open + .dropdown, .nav-item.dd-open .dropdown{display:block;}
  .nav-toggle{display:block;}
  .navwrap .cta-btn{display:none;}

  .hero h1{font-size:30px;}
  .page-header h1{font-size:26px;}
  .trust-inner{grid-template-columns:repeat(2,1fr); gap:16px 0;}
  .trust-item{border-left:none; padding:10px 0;}
  .grid6{grid-template-columns:1fr 1fr;}
  .why-grid{grid-template-columns:1fr 1fr; gap:26px;}
  .serve-grid{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr 1fr; gap:28px;}
  .two-col{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .subtype-list{grid-template-columns:1fr;}
  .blog-grid{grid-template-columns:1fr;}
  .route-svg{display:none;}
}

@media(max-width:520px){
  .grid6{grid-template-columns:1fr;}
  .why-grid{grid-template-columns:1fr;}
  .serve-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .hero h1{font-size:25px;}
  .form-row{grid-template-columns:1fr;}
  .section{padding:56px 20px;}
}