/* ============================================================
   Hailing Machinery — Design System v2.0 (2026-09 rebuild)
   Industrial B2B · deep navy + safety orange · zero dependencies
   ============================================================ */
:root{
  --blue:#0b4d8c; --blue-d:#072f57; --blue-m:#0d5aa0; --blue-l:#e9f1f9;
  --ink:#152233; --mut:#54677c; --paper:#ffffff; --bg:#f4f7fa;
  --line:#dbe4ee; --line-s:#e8eef5;
  --cta:#ff7a1a; --cta-d:#e56500; --cta-l:#fff3e8;
  --ok:#0b6b3a; --radius:14px;
  --shadow-s:0 1px 3px rgba(7,47,87,.08);
  --shadow-m:0 6px 22px rgba(7,47,87,.12);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--cta);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:99}
.skip-link:focus{left:0}
:focus-visible{outline:3px solid var(--cta);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 22px}
.narrow{max-width:860px}

/* ---------- header ---------- */
.site-header{background:#fff;border-bottom:1px solid var(--line-s);position:sticky;top:0;z-index:50;box-shadow:var(--shadow-s)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.logo:hover{text-decoration:none}
.logo-mark{width:42px;height:42px;border-radius:11px;background:linear-gradient(140deg,var(--blue-m),var(--blue-d));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;letter-spacing:.5px;flex:none}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16.5px;letter-spacing:.2px}
.logo-text span{font-size:11.5px;color:var(--mut)}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--ink);font-weight:600;font-size:14.5px;padding:6px 2px;border-bottom:2px solid transparent}
.nav a:hover{color:var(--blue);text-decoration:none}
.nav a[aria-current="page"]{color:var(--blue);border-bottom-color:var(--blue)}
.nav-toggle{display:none;background:none;border:1.5px solid var(--line);border-radius:9px;font-size:20px;line-height:1;padding:8px 12px;cursor:pointer;color:var(--ink)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;border-radius:11px;padding:13px 26px;border:2px solid transparent;cursor:pointer;transition:transform .12s,box-shadow .12s,background .12s;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--cta);color:#fff;box-shadow:0 5px 16px rgba(255,122,26,.35)}
.btn--primary:hover{background:var(--cta-d)}
.btn--ghost{background:transparent;color:var(--blue);border-color:var(--blue)}
.btn--ghost:hover{background:var(--blue-l)}
.btn--nav{padding:9px 20px;font-size:14px}

/* ---------- hero ---------- */
.hero{background:linear-gradient(150deg,var(--blue-d) 0%,var(--blue) 62%,var(--blue-m) 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(900px 420px at 85% 18%,rgba(255,255,255,.10),transparent 60%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:74px 0 64px}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:2.2px;text-transform:uppercase;color:#ffc48a;margin-bottom:14px}
.hero h1{font-size:44px;line-height:1.13;font-weight:800;letter-spacing:-.5px}
.hero .lead{margin-top:18px;font-size:18px;color:#cfe0f1;max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-media{position:relative}
.hero-media img{border-radius:16px;box-shadow:0 24px 60px rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.16)}
.hero-badge{position:absolute;left:-14px;bottom:22px;background:#fff;color:var(--blue-d);border-radius:12px;padding:12px 18px;font-weight:800;font-size:14px;box-shadow:var(--shadow-m)}
.hero-badge small{display:block;font-weight:600;color:var(--mut);font-size:11.5px;margin-top:2px}

/* ---------- stats bar ---------- */
.stats{background:#fff;border-bottom:1px solid var(--line-s)}
.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;padding:26px 0}
.stat{text-align:center}
.stat b{display:block;font-size:26px;color:var(--blue);font-weight:800;letter-spacing:-.5px}
.stat span{font-size:12.5px;color:var(--mut);font-weight:600}

/* ---------- sections ---------- */
section.block{padding:76px 0}
.block--alt{background:#fff;border-top:1px solid var(--line-s);border-bottom:1px solid var(--line-s)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head h2{font-size:31px;font-weight:800;letter-spacing:-.4px;line-height:1.2}
.section-head p{margin-top:12px;color:var(--mut);font-size:16.5px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- product line cards ---------- */
.lines-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.lines-grid--one{grid-template-columns:minmax(0,640px);justify-content:center}
.line-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s);transition:transform .15s,box-shadow .15s,border-color .15s;display:flex;flex-direction:column}
.line-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:var(--blue)}
.line-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.line-card .lc-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.line-card h3{font-size:20px;font-weight:800}
.line-card p{color:var(--mut);font-size:14.5px;flex:1}
.lc-meta{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- feature list ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;gap:16px;box-shadow:var(--shadow-s)}
.feat .ico{width:46px;height:46px;flex:none;border-radius:12px;background:var(--blue-l);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:21px}
.feat h3{font-size:17px;font-weight:800;margin-bottom:6px}
.feat p{color:var(--mut);font-size:14.5px}

/* ---------- product cards ---------- */
.group-head{margin:54px 0 22px;display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap}
.group-head h2{font-size:25px;font-weight:800;letter-spacing:-.3px}
.group-head p{color:var(--mut);font-size:14.5px}
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s);display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s,border-color .15s;scroll-margin-top:90px}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:var(--blue)}
.product-card img{aspect-ratio:4/3;object-fit:contain;width:100%;height:auto;background:#fff;border-bottom:1px solid var(--line-s)}
.pc-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.pc-body h3{font-size:19px;font-weight:800;letter-spacing:-.2px}
.pc-lead{color:var(--mut);font-size:14px;line-height:1.55}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{background:var(--blue-l);color:var(--blue-d);border-radius:7px;padding:3px 10px;font-size:12px;font-weight:700;white-space:nowrap}
.pc-actions{display:flex;gap:10px;margin-top:auto;flex-wrap:wrap}
.spec-details{border:1px solid var(--line-s);border-radius:10px;background:#fbfdff}
.spec-details summary{cursor:pointer;font-weight:700;font-size:13.5px;color:var(--blue);padding:11px 16px;list-style:none;display:flex;justify-content:space-between;align-items:center;user-select:none}
.spec-details summary::-webkit-details-marker{display:none}
.spec-details summary::after{content:"+";font-size:17px;font-weight:800;color:var(--cta)}
.spec-details[open] summary::after{content:"–"}
.spec-details[open] summary{border-bottom:1px solid var(--line-s)}
.spec-table{width:100%;border-collapse:collapse;font-size:13px}
.spec-table th{text-align:left;padding:8px 16px;color:var(--mut);font-weight:600;width:46%;vertical-align:top}
.spec-table td{padding:8px 16px 8px 4px;font-weight:600}
.spec-table tr+tr th,.spec-table tr+tr td{border-top:1px solid var(--line-s)}
.btn-quote{flex:1;text-align:center;background:var(--cta);color:#fff;border-radius:10px;padding:11px 16px;font-weight:700;font-size:13.5px;box-shadow:0 4px 12px rgba(255,122,26,.28)}
.btn-quote:hover{background:var(--cta-d);text-decoration:none}
.btn-wa{background:var(--ok);color:#fff;border-radius:10px;padding:11px 14px;font-weight:700;font-size:13.5px}
.btn-wa:hover{background:#085730;text-decoration:none}

/* ---------- FAQ ---------- */
.faq-list{max-width:840px}
.faq{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;font-weight:700;font-size:16px;padding:18px 22px;display:flex;justify-content:space-between;align-items:center;gap:14px;user-select:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;font-weight:800;color:var(--cta);flex:none}
.faq[open] summary::after{content:"–"}
.faq .faq-a{padding:0 22px 20px;color:var(--mut);font-size:15px;border-top:1px solid var(--line-s);padding-top:16px}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg,var(--blue-d),var(--blue));border-radius:20px;color:#fff;padding:52px 54px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;box-shadow:var(--shadow-m)}
.cta-band h2{font-size:27px;font-weight:800;letter-spacing:-.3px}
.cta-band p{color:#cfe0f1;margin-top:8px;max-width:560px}

/* ---------- about page ---------- */
.about-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;padding:64px 0}
.about-hero img{border-radius:16px;box-shadow:var(--shadow-m)}
.steps{counter-reset:step}
.step{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line-s)}
.step:last-child{border-bottom:none}
.step::before{counter-increment:step;content:counter(step);flex:none;width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.step h3{font-size:16.5px;font-weight:800;margin-bottom:4px}
.step p{color:var(--mut);font-size:14.5px}

/* ---------- contact / form ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px;box-shadow:var(--shadow-m)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;font-size:13.5px;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;font:inherit;font-size:14.5px;background:#fbfdff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(11,77,140,.12)}
.field textarea{min-height:120px;resize:vertical}
.honeypot{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.form-note{margin-top:14px;font-size:14px;font-weight:600;min-height:22px}
.contact-side .c-item{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line-s)}
.contact-side .c-item:last-child{border-bottom:none}
.contact-side .ico{width:44px;height:44px;flex:none;border-radius:12px;background:var(--blue-l);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:19px}
.contact-side h3{font-size:15.5px;font-weight:800}
.contact-side p{color:var(--mut);font-size:14px;margin-top:2px}
.wa-inline{color:var(--ok);font-weight:700}

/* ---------- footer ---------- */
.site-footer{background:var(--blue-d);color:#c6d8ea;margin-top:90px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding:56px 0 40px}
.site-footer h4{color:#fff;font-size:14.5px;font-weight:800;letter-spacing:.4px;margin-bottom:14px;text-transform:uppercase}
.site-footer ul{list-style:none}
.site-footer li{margin:9px 0;font-size:14px}
.site-footer a{color:#c6d8ea}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;font-size:13px;color:#8fa9c4;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* ---------- 404 ---------- */
.err-hero{padding:110px 0;text-align:center}
.err-hero .eyebrow{color:#ffc48a}
.err-hero h1{font-size:42px;color:#fff;font-weight:800;margin:10px 0}
.err-hero p{color:#cfe0f1;font-size:17px;max-width:520px;margin:0 auto 30px}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .stats-grid{grid-template-columns:repeat(3,1fr);row-gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .lines-grid{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr;padding:56px 0 50px}
  .hero h1{font-size:37px}
  .about-hero{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:10px 22px 20px;gap:4px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-m)}
  .nav.is-open{display:flex}
  .nav a{padding:12px 4px;border-bottom:1px solid var(--line-s);font-size:16px}
  .nav .btn--nav{margin-top:12px;justify-content:center}
  .nav-toggle{display:block}
  .lines-grid{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr}
  .hero h1{font-size:31px}
  .hero .lead{font-size:16px}
  .section-head h2{font-size:25px}
  section.block{padding:52px 0}
  .form-row{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band{padding:36px 26px}
  .cta-band h2{font-size:22px}
  .form-card{padding:24px 20px}
  .hero-badge{left:10px;bottom:10px}
}
@media print{
  .site-header,.site-footer,.hero-cta,.btn,.pc-actions{display:none!important}
  body{background:#fff}
}


/* ---------- product detail pages ---------- */
.pd-crumbs{font-size:13px;color:#61708a;margin-bottom:20px}
.pd-crumbs a{color:#0b4d8c;text-decoration:none}
.pd-crumbs a:hover{text-decoration:underline}
.pd-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.pd-media{background:#fff;border:1px solid #e3e9f2;border-radius:14px;padding:18px;box-shadow:0 8px 24px rgba(7,47,87,.06)}
.pd-media img{width:100%;height:auto;border-radius:8px;display:block}
.pd-buy h1{margin:4px 0 14px;font-size:34px;line-height:1.15}
.pd-price{display:flex;flex-direction:column;gap:3px;background:#f2f7ff;border:1px solid #d5e4f7;border-radius:12px;padding:16px 20px;margin:18px 0}
.pd-price span{font-size:13px;color:#4a5b70}
.pd-price strong{font-size:27px;color:#0b4d8c;letter-spacing:-.3px}
.pd-price small{color:#7a8aa0}
.pd-perks{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.pd-perks li{font-size:13px;background:#eef3f9;border-radius:999px;padding:6px 13px;color:#33465c}
.pd-body ul{padding-left:22px;line-height:1.75;max-width:820px}
.pd-body li{margin:9px 0}
.pd-body h2{margin-top:30px}
.pd-body h2:first-child{margin-top:0}
.product-card h3 a{color:inherit;text-decoration:none}
.product-card h3 a:hover{color:#0b4d8c;text-decoration:underline}
@media (max-width:1020px){.pd-grid{grid-template-columns:1fr;gap:24px}.pd-buy h1{font-size:28px}}


/* ---------- blog / article ---------- */
.post-meta{font-size:13px;color:#61708a;margin:2px 0 22px}
.article{max-width:820px}
.article h1{margin:4px 0 6px;font-size:32px;line-height:1.2}
.article h2{margin:32px 0 12px;font-size:23px;color:#0b4d8c}
.article p{line-height:1.8;margin:12px 0;color:#26364a}
.article ul{padding-left:22px;line-height:1.8;margin:12px 0;color:#26364a}
.article li{margin:8px 0}
.article a{color:#0b4d8c}
.article table{width:100%;border-collapse:collapse;margin:18px 0}
.article th,.article td{border:1px solid #d9e2ee;padding:9px 12px;font-size:14px;text-align:left;vertical-align:top}
.article th{background:#f2f7ff;color:#0b4d8c}
@media (max-width:720px){.article h1{font-size:26px}.article h2{font-size:20px}}