/* ==========================================================================
   OPTCJ Machining — Design System
   Style reference: waykenrm.com (industrial blue + orange CTA, light cards)
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --brand:#0170b9;
  --brand-600:#02619f;
  --brand-700:#015388;
  --brand-900:#013c63;
  --brand-tint:#e8f2fa;
  --accent:#ff963a;
  --accent-600:#f2801f;
  --accent-700:#d96e12;
  --accent-tint:#fff3e8;

  --ink:#33373d;
  --ink-2:#3a3a3a;
  --muted:#69727d;
  --muted-2:#8a919c;

  --bg:#f5f5f5;
  --bg-soft:#fafafa;
  --white:#fff;
  --border:#e5e5e5;
  --border-2:#d9d9d9;

  --radius:8px;
  --radius-lg:14px;
  --shadow-sm:0 1px 3px rgba(16,24,40,.06);
  --shadow:0 4px 16px rgba(16,24,40,.08);
  --shadow-lg:0 12px 32px rgba(16,24,40,.12);

  --maxw:1220px;
  --header-h:78px;

  --ff:"Inter","Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  --ff-num:"Inter",Helvetica,Arial,sans-serif;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  margin:0;font-family:var(--ff);font-size:16px;line-height:1.7;
  color:var(--ink);background:var(--white);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4,h5{color:var(--ink);line-height:1.25;margin:0 0 .6em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.4rem)}
h2{font-size:clamp(1.5rem,2.8vw,2.25rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.4rem)}
h4{font-size:1.05rem}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.3em}
strong{font-weight:700;color:var(--ink-2)}
hr{border:0;border-top:1px solid var(--border);margin:2rem 0}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:9999;
  background:var(--accent);color:#fff;padding:.7rem 1.4rem;font-weight:600;
}
.skip-link:focus{left:8px;top:8px;color:#fff}

/* ---------- 3. Layout ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.container-narrow{max-width:900px}
.section{padding:clamp(3rem,6vw,5.5rem) 0}
.section-alt{background:var(--bg)}
.section-soft{background:var(--bg-soft)}
.section-dark{background:linear-gradient(135deg,var(--brand-900),var(--brand-700));color:#fff}
.section-dark h2,.section-dark h3{color:#fff}
.section-dark p{color:rgba(255,255,255,.85)}
.section-head{max-width:760px;margin:0 auto clamp(2rem,4vw,3.2rem);text-align:center}
.section-head.left{margin-left:0;text-align:left}
.section-tag{
  display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);margin-bottom:.85rem;
}
.section-dark .section-tag{color:var(--accent)}
.section-title{margin-bottom:.75rem}
.section-desc{color:var(--muted);font-size:1.05rem;margin:0}

/* ---------- 4. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.85rem 1.75rem;border-radius:var(--radius);font-weight:700;font-size:.95rem;
  border:2px solid transparent;cursor:pointer;transition:all .22s ease;
  line-height:1.2;text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(255,150,58,.32)}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:0 8px 22px rgba(255,150,58,.4)}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px)}
.btn-outline{border-color:var(--border-2);color:var(--ink);background:var(--white)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-tint)}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-outline-light:hover{background:#fff;color:var(--brand)}
.btn-lg{padding:1rem 2.2rem;font-size:1rem}
.btn-block{width:100%}
/* legacy gold button mapped to new accent */
.btn-gold{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(255,150,58,.3)}
.btn-gold:hover{background:var(--accent-600);color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:1.6rem}
.btn-row.center{justify-content:center}

/* ---------- 5. Header / Nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:var(--white);border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:var(--shadow)}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  height:var(--header-h);display:flex;align-items:center;gap:2rem;
}
.brand{display:flex;align-items:center;gap:.65rem;flex-shrink:0;text-decoration:none}
.brand-mark{
  width:40px;height:40px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-700));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.15rem;letter-spacing:-.02em;
}
.brand-name{font-weight:800;font-size:1.12rem;color:var(--ink);line-height:1.15;display:block}
.brand-sub{display:block;font-size:.62rem;font-weight:600;letter-spacing:.2em;color:var(--accent);text-transform:uppercase}

.nav{display:flex;align-items:center;gap:.15rem;margin-left:auto}
.nav-links,.main-nav{
  display:flex;align-items:center;gap:.1rem;list-style:none;margin:0;padding:0;
}
.nav-link{
  display:inline-flex;align-items:center;gap:.3rem;
  padding:.6rem .85rem;border-radius:6px;font-size:.92rem;font-weight:600;
  color:var(--ink-2);white-space:nowrap;transition:all .18s ease;
}
.nav-link:hover,.nav-link:focus{color:var(--brand);background:var(--brand-tint)}
.nav-item{position:relative}
.nav-item .nav-link.active{color:var(--brand)}
.nav-item .nav-link.active::after{
  content:"";position:absolute;left:.85rem;right:.85rem;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
}
/* dropdown */
.nav-item .dropdown{
  position:absolute;top:100%;left:0;min-width:250px;
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:.5rem;list-style:none;margin:8px 0 0;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .2s ease;
}
.nav-item:hover>.dropdown,.nav-item:focus-within>.dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{
  display:block;padding:.55rem .8rem;border-radius:6px;font-size:.9rem;color:var(--ink-2);
}
.dropdown a:hover{background:var(--brand-tint);color:var(--brand-700)}
.dropdown a small{display:block;color:var(--muted-2);font-size:.78rem;font-weight:400}

.nav-actions{display:flex;align-items:center;gap:.7rem;flex-shrink:0}
.nav-phone{
  display:inline-flex;align-items:center;gap:.4rem;font-weight:700;
  color:var(--ink-2);font-size:.9rem;white-space:nowrap;
}
.nav-phone:hover{color:var(--brand)}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--border-2);
  background:var(--white);border-radius:7px;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;
}
.menu-toggle span{display:block;width:19px;height:2px;background:var(--ink);border-radius:2px;transition:all .2s}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-menu{
  display:none;position:fixed;top:var(--header-h);left:0;right:0;bottom:0;z-index:999;
  background:var(--white);overflow-y:auto;padding:1.5rem 24px 3rem;border-top:1px solid var(--border);
}
.mobile-menu.is-open{display:block}
.mobile-menu ul{list-style:none;margin:0;padding:0}
.mobile-menu li{border-bottom:1px solid var(--border)}
.mobile-menu a{
  display:block;padding:.9rem .25rem;color:var(--ink);font-weight:600;font-size:1rem;
}
.mobile-menu .mm-sub a{padding-left:1.4rem;font-size:.92rem;font-weight:500;color:var(--muted)}
.mobile-menu .mm-label{
  padding:.9rem .25rem .4rem;font-size:.72rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);
}

/* hero glow / blueprint (legacy hooks kept) */
.hero-glow,.hero-blueprint{display:none}

/* ---------- 6. Hero (slider) ---------- */
.hero{position:relative;min-height:min(88vh,720px);display:flex;align-items:center;
  background:linear-gradient(115deg,#01253d 0%,var(--brand-900) 45%,var(--brand-700) 100%);
  color:#fff;overflow:hidden;padding-top:var(--header-h);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url("../images/factory-floor.jpg") center/cover no-repeat;opacity:.3;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(1,37,61,.94) 0%,rgba(1,60,99,.82) 50%,rgba(1,83,136,.6) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-slides{position:relative}
.hero-slide{display:none;max-width:760px;padding:clamp(3rem,7vw,5rem) 0}
.hero-slide.is-active{display:block;animation:heroFade .6s ease}
@keyframes heroFade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;font-size:.74rem;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:1rem;
}
.hero-eyebrow::before{content:"";width:26px;height:2px;background:var(--accent)}
.hero-title{color:#fff;font-size:clamp(2.1rem,5vw,3.6rem);font-weight:800;line-height:1.1;margin-bottom:1.1rem}
.hero-title em{font-style:normal;color:var(--accent)}
.hero-sub{font-size:clamp(1rem,1.6vw,1.2rem);color:rgba(255,255,255,.88);max-width:620px;margin-bottom:.6rem}
.hero-badges{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.4rem}
.hero-badge{
  display:inline-flex;align-items:center;gap:.4rem;padding:.4rem .85rem;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:50px;font-size:.82rem;font-weight:600;color:#fff;backdrop-filter:blur(4px);
}
.hero-dots{display:flex;gap:.5rem;margin-top:2.2rem}
.hero-dot{
  width:34px;height:4px;border:0;padding:0;border-radius:3px;cursor:pointer;
  background:rgba(255,255,255,.3);transition:background .25s ease;
}
.hero-dot.is-active{background:var(--accent)}

/* ---------- 7. Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.stat-item{text-align:center;padding:1.6rem 1rem;background:var(--white);
  border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);
}
.stat-num{
  font-family:var(--ff-num);font-size:clamp(1.9rem,3.4vw,2.7rem);font-weight:800;
  color:var(--brand);line-height:1.1;letter-spacing:-.02em;
}
.stat-num .suffix{color:var(--accent);font-size:.7em}
.stat-label{font-size:.9rem;color:var(--muted);margin-top:.3rem;font-weight:500}
.stats-dark .stat-item{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16)}
.stats-dark .stat-num{color:#fff}
.stats-dark .stat-label{color:rgba(255,255,255,.75)}

/* ---------- 8. Cards ---------- */
.grid{display:grid;gap:1.5rem}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.cap-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all .28s ease;display:flex;flex-direction:column;
}
.cap-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.cap-card-img{aspect-ratio:16/10;overflow:hidden;background:var(--bg)}
.cap-card-img img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.cap-card:hover .cap-card-img img{transform:scale(1.06)}
.cap-card-body{padding:1.4rem;flex:1;display:flex;flex-direction:column}
.cap-card-body h3{margin-bottom:.5rem;font-size:1.15rem}
.cap-card-body p{color:var(--muted);font-size:.93rem;flex:1}
.cap-card-link{
  display:inline-flex;align-items:center;gap:.4rem;font-weight:700;font-size:.9rem;
  color:var(--brand);margin-top:.9rem;
}
.cap-card-link::after{content:"\2192";transition:transform .2s}
.cap-card:hover .cap-card-link::after{transform:translateX(4px)}
.cap-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:8px;background:var(--brand-tint);
  color:var(--brand);font-weight:800;font-size:.9rem;margin-bottom:.8rem;
}

/* icon+text feature list */
.feat{display:flex;gap:1rem;align-items:flex-start}
.feat-ic{
  flex-shrink:0;width:46px;height:46px;border-radius:10px;
  background:var(--brand-tint);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:1.2rem;
}
.feat h4{margin-bottom:.25rem}
.feat p{color:var(--muted);font-size:.92rem;margin:0}

/* ---------- 9. Check list ---------- */
.check-list{list-style:none;margin:1.1rem 0;padding:0}
.check-list li{
  position:relative;padding:.5rem 0 .5rem 2rem;color:var(--ink-2);font-size:.97rem;
  border-bottom:1px dashed var(--border);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"\2713";position:absolute;left:0;top:.42rem;
  width:20px;height:20px;border-radius:50%;background:var(--accent);color:#fff;
  font-size:.7rem;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.check-list.dark li{color:rgba(255,255,255,.9);border-color:rgba(255,255,255,.15)}
.check-list.dark li::before{background:var(--accent)}

/* ---------- 10. Case / spec tables ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.case-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all .28s ease;display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.case-card-img{aspect-ratio:4/3;overflow:hidden;background:var(--bg)}
.case-card-img img{width:100%;height:100%;object-fit:cover;border-radius:0}
.case-card-body{padding:1.3rem;flex:1;display:flex;flex-direction:column}
.case-tag{
  display:inline-block;align-self:flex-start;padding:.22rem .65rem;border-radius:50px;
  background:var(--accent-tint);color:var(--accent-700);
  font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:.7rem;
}
.case-card h3{font-size:1.08rem;margin-bottom:.6rem}
.case-spec{list-style:none;margin:0 0 1rem;padding:0;font-size:.87rem}
.case-spec li{
  display:flex;justify-content:space-between;gap:1rem;padding:.42rem 0;
  border-bottom:1px solid var(--border);
}
.case-spec li:last-child{border-bottom:0}
.case-spec .k{color:var(--muted);flex-shrink:0}
.case-spec .v{font-weight:600;color:var(--ink);text-align:right}
.case-link{
  display:inline-flex;align-items:center;gap:.35rem;font-weight:700;font-size:.88rem;
  color:var(--brand);margin-top:auto;
}
.case-link::after{content:"\2192";transition:transform .2s}
.case-card:hover .case-link::after{transform:translateX(4px)}

/* generic data table */
.spec-table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:.93rem;
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
}
.spec-table th{
  background:var(--brand);color:#fff;text-align:left;padding:.8rem 1rem;
  font-size:.85rem;font-weight:700;letter-spacing:.03em;
}
.spec-table td{padding:.75rem 1rem;border-top:1px solid var(--border);color:var(--ink-2)}
.spec-table tbody tr:nth-child(even){background:var(--bg-soft)}
.spec-table tbody tr:hover{background:var(--brand-tint)}

/* ---------- 11. Industry cards ---------- */
.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.industry-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  min-height:230px;display:flex;align-items:flex-end;
  box-shadow:var(--shadow);transition:transform .3s ease;
}
.industry-card:hover{transform:translateY(-5px)}
.industry-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;
}
.industry-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(1,37,61,0) 25%,rgba(1,37,61,.88) 100%);
}
.industry-card-body{position:relative;z-index:2;padding:1.4rem;color:#fff;width:100%}
.industry-card-body h3{color:#fff;font-size:1.15rem;margin-bottom:.3rem}
.industry-card-body p{color:rgba(255,255,255,.85);font-size:.9rem;margin:0}

/* ---------- 12. Process steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;counter-reset:step}
.step{position:relative;text-align:center;padding:0 .5rem}
.step-num{
  width:56px;height:56px;margin:0 auto 1rem;border-radius:50%;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;font-weight:800;box-shadow:0 6px 18px rgba(1,112,185,.3);
  position:relative;z-index:2;
}
.step:not(:last-child)::after{
  content:"";position:absolute;top:28px;left:calc(50% + 34px);right:calc(-50% + 34px);
  height:2px;background:repeating-linear-gradient(90deg,var(--border-2) 0 6px,transparent 6px 12px);
}
.step h3{font-size:1.05rem;margin-bottom:.4rem}
.step p{color:var(--muted);font-size:.9rem;margin:0}

/* ---------- 13. Testimonial ---------- */
.testimonial{
  max-width:860px;margin:0 auto;text-align:center;
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:clamp(2rem,4vw,3rem);box-shadow:var(--shadow);position:relative;
}
.testimonial::before{
  content:"\201C";position:absolute;top:-.1em;left:1rem;
  font-size:6rem;line-height:1;color:var(--brand-tint);font-weight:800;
}
.testimonial blockquote{
  margin:0 0 1.4rem;font-size:clamp(1.05rem,1.8vw,1.25rem);line-height:1.75;
  color:var(--ink-2);font-style:italic;position:relative;
}
.testimonial-author{font-weight:700;color:var(--ink)}
.testimonial-role{color:var(--muted);font-size:.88rem}

/* ---------- 14. News / blog cards ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.blog-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all .28s ease;display:flex;flex-direction:column;
}
.blog-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.blog-card-img{aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.blog-card-img img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s}
.blog-card:hover .blog-card-img img{transform:scale(1.05)}
.blog-card-body{padding:1.3rem;flex:1;display:flex;flex-direction:column}
.blog-cat{
  display:inline-block;align-self:flex-start;padding:.2rem .6rem;border-radius:4px;
  background:var(--brand-tint);color:var(--brand-700);
  font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:.6rem;
}
.blog-card h3{font-size:1.05rem;line-height:1.4;margin-bottom:.5rem}
.blog-card h3 a{color:var(--ink)}
.blog-card h3 a:hover{color:var(--brand)}
.blog-card p{color:var(--muted);font-size:.9rem;flex:1;margin-bottom:.9rem}
.blog-meta{display:flex;align-items:center;gap:.5rem;font-size:.8rem;color:var(--muted-2);flex-wrap:wrap}

/* ---------- 15. FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:.8rem;
  background:var(--white);overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:1.05rem 1.3rem;background:none;border:0;cursor:pointer;
  font-family:inherit;font-size:1rem;font-weight:600;color:var(--ink);text-align:left;
}
.faq-q:hover{background:var(--bg-soft)}
.faq-q::after{content:"+";font-size:1.4rem;color:var(--brand);font-weight:400;flex-shrink:0;transition:transform .2s}
.faq-item.is-open .faq-q::after{content:"\2212"}
.faq-a{padding:0 1.3rem;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
.faq-item.is-open .faq-a{padding:0 1.3rem 1.2rem;max-height:600px}
.faq-a p{color:var(--muted);margin:0;font-size:.95rem}

/* ---------- 16. Page hero (inner pages) ---------- */
.page-hero{
  background:linear-gradient(120deg,var(--brand-900),var(--brand-700));
  color:#fff;padding:calc(var(--header-h) + clamp(2.5rem,5vw,4rem)) 0 clamp(2.5rem,5vw,3.5rem);
  position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("../images/factory-floor.jpg") center/cover no-repeat;opacity:.16;
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{color:#fff;margin-bottom:.6rem;font-size:clamp(1.9rem,4vw,2.9rem)}
.page-hero p{color:rgba(255,255,255,.85);font-size:1.08rem;max-width:700px;margin:0}
.page-hero .btn-row{margin-top:1.6rem}

/* breadcrumb */
.breadcrumb{
  display:flex;align-items:center;gap:.45rem;flex-wrap:wrap;
  font-size:.82rem;color:rgba(255,255,255,.7);margin-bottom:1rem;list-style:none;padding:0;
}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
/* breadcrumb on light background */
.breadcrumb-light{color:var(--muted)}
.breadcrumb-light a{color:var(--muted)}
.breadcrumb-light a:hover{color:var(--brand)}
/* news-meta sitting inside the dark page-hero (article pages) */
.page-hero .news-meta{color:rgba(255,255,255,.75);border-bottom-color:rgba(255,255,255,.18)}
.page-hero .news-meta .author{color:#fff}

/* ---------- 17. Article styles ---------- */
.article-wrap{padding:calc(var(--header-h) + 2.5rem) 0 4rem;background:var(--white)}
.article-head{max-width:820px;margin:0 auto 2rem}
.article-head h1{font-size:clamp(1.8rem,3.6vw,2.7rem);line-height:1.2;margin-bottom:1rem}
.news-meta{
  display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;
  font-size:.87rem;color:var(--muted);padding-bottom:1.2rem;border-bottom:1px solid var(--border);
}
.news-meta .author{font-weight:700;color:var(--ink-2)}
.article-figure{margin:0 0 2rem;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.article-body{max-width:820px;margin:0 auto;font-size:1.05rem;line-height:1.85;color:var(--ink-2)}
.article-body h2{
  font-size:clamp(1.3rem,2.2vw,1.75rem);margin-top:2.4rem;margin-bottom:.9rem;
  padding-left:.85rem;border-left:4px solid var(--accent);
}
.article-body h3{font-size:1.15rem;margin-top:1.8rem;margin-bottom:.6rem;color:var(--brand-700)}
.article-body p{margin-bottom:1.25rem}
.article-body ul,.article-body ol{margin-bottom:1.25rem;padding-left:1.4rem}
.article-body li{margin-bottom:.5rem}
.article-body a{text-decoration:underline;text-underline-offset:2px}
.lead{
  font-size:1.16rem;line-height:1.8;color:var(--ink);font-weight:500;
  background:var(--brand-tint);border-left:4px solid var(--brand);
  padding:1.2rem 1.4rem;border-radius:0 var(--radius) var(--radius) 0;margin-bottom:1.8rem;
}
.article-body blockquote{
  margin:1.8rem 0;padding:1.1rem 1.4rem;background:var(--bg-soft);
  border-left:4px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;
  font-style:italic;color:var(--ink);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-foot{
  max-width:820px;margin:2.5rem auto 0;padding-top:1.5rem;border-top:1px solid var(--border);
  display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;
}
.tag{
  display:inline-block;padding:.3rem .8rem;border-radius:50px;
  background:var(--bg);border:1px solid var(--border);color:var(--muted);
  font-size:.78rem;font-weight:600;transition:all .18s;
}
.tag:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* related + postnav */
.related{background:var(--bg);padding:clamp(2.5rem,5vw,4rem) 0}
.related h2{font-size:1.5rem;margin-bottom:1.6rem}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.related-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;transition:all .25s ease;display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand)}
.related-card img{aspect-ratio:16/9;object-fit:cover;border-radius:0}
.related-body{padding:1.1rem;flex:1;display:flex;flex-direction:column}
.related-cat{
  display:inline-block;align-self:flex-start;padding:.2rem .6rem;border-radius:4px;
  background:var(--brand-tint);color:var(--brand-700);
  font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:.5rem;
}
.related-card h3{font-size:1rem;line-height:1.4;margin-bottom:.5rem}
.related-card h3 a{color:var(--ink)}
.related-card h3 a:hover{color:var(--brand)}
.related-author{font-size:.8rem;color:var(--muted-2);margin-top:auto;padding-top:.5rem}

.postnav{background:var(--white);padding:2.5rem 0;border-top:1px solid var(--border)}
.post-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:1rem;align-items:center;max-width:900px;margin:0 auto}
.post-nav-link{
  display:flex;flex-direction:column;gap:.25rem;padding:1rem 1.2rem;
  border:1px solid var(--border);border-radius:var(--radius);transition:all .2s;min-height:74px;justify-content:center;
}
.post-nav-link:hover{border-color:var(--brand);background:var(--brand-tint)}
.post-nav-link.next{text-align:right;align-items:flex-end}
.post-nav-dir{font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.post-nav-title{font-weight:600;font-size:.95rem;color:var(--ink);line-height:1.35}
.post-nav-all{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--border-2);
  color:var(--muted);font-size:1.1rem;flex-shrink:0;
}
.post-nav-all:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.prev .post-nav-link,.next .post-nav-link{display:flex}

/* ---------- 18. Forms ---------- */
.form-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:clamp(1.5rem,3vw,2.4rem);box-shadow:var(--shadow);
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.1rem}
.field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.1rem}
.field.full{grid-column:1/-1}
.field label{font-size:.85rem;font-weight:700;color:var(--ink-2)}
.field label .req{color:var(--accent)}
.field input,.field select,.field textarea{
  width:100%;padding:.75rem .9rem;border:1px solid var(--border-2);border-radius:var(--radius);
  font-family:inherit;font-size:.95rem;color:var(--ink);background:var(--white);transition:all .18s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(1,112,185,.12);
}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:.82rem;color:var(--muted-2);margin-top:.8rem}
.file-drop{
  border:2px dashed var(--border-2);border-radius:var(--radius);
  background:var(--bg-soft);padding:1.6rem 1.2rem;text-align:center;cursor:pointer;
  transition:all .2s ease;
}
.file-drop:hover{border-color:var(--brand);background:var(--brand-tint)}
.file-drop:focus-visible{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(1,112,185,.12)}
.file-drop p{margin:0;font-size:.92rem;color:var(--ink-2)}
.file-drop p small{color:var(--muted-2)}
.file-drop::before{
  content:"\2913";display:block;font-size:1.6rem;color:var(--brand);line-height:1;margin-bottom:.4rem;
}

/* ---------- 19. CTA section ---------- */
.cta-section{
  background:linear-gradient(120deg,var(--brand-900),var(--brand-700));
  color:#fff;padding:clamp(3rem,6vw,4.5rem) 0;text-align:center;position:relative;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:url("../images/factory-floor.jpg") center/cover no-repeat;opacity:.14;
}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{color:#fff;margin-bottom:.7rem}
.cta-section p{color:rgba(255,255,255,.85);max-width:640px;margin:0 auto 1.8rem;font-size:1.05rem}
.cta-section .btn-row{justify-content:center}

/* ---------- 20. Footer ---------- */
.site-footer{background:#1c2530;color:#b9c2cc;padding:clamp(2.5rem,5vw,4rem) 0 0;font-size:.92rem}
.footer-grid{
  display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:2.5rem;
  padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:1rem;letter-spacing:.02em}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:.55rem}
.footer-col a{color:#b9c2cc;font-size:.9rem}
.footer-col a:hover{color:var(--accent)}
.footer-about p{color:#b9c2cc;font-size:.9rem;line-height:1.75}
.footer-contact{list-style:none;margin:0;padding:0}
.footer-contact li{margin-bottom:.6rem;color:#b9c2cc;font-size:.9rem;display:flex;gap:.5rem}
.footer-bottom{
  padding:1.3rem 0;display:flex;justify-content:space-between;align-items:center;
  gap:1rem;flex-wrap:wrap;font-size:.85rem;color:#8a96a3;
}
.footer-bottom a{color:#8a96a3}
.footer-bottom a:hover{color:var(--accent)}
.footer-social{display:flex;gap:.6rem}
.footer-social a{
  width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;color:#b9c2cc;font-size:.85rem;
}
.footer-social a:hover{background:var(--accent);color:#fff}

/* ---------- 21. Utilities ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;background:var(--accent);z-index:1001;width:0;
}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
.float-cta{
  position:fixed;right:18px;bottom:18px;z-index:998;
  display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.2rem;
  background:var(--accent);color:#fff;border-radius:50px;font-weight:700;font-size:.88rem;
  box-shadow:0 6px 20px rgba(255,150,58,.45);
}
.float-cta:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px)}
.float-cta-ic{font-size:1rem}
.back-to-top{
  position:fixed;right:18px;bottom:74px;z-index:998;
  width:42px;height:42px;border-radius:50%;border:1px solid var(--border);
  background:var(--white);color:var(--muted);cursor:pointer;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transition:all .25s;
}
.back-to-top.is-visible{opacity:1;visibility:visible}
.back-to-top:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.text-center{text-align:center}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.d1{animation-delay:.08s}.d2{animation-delay:.16s}

/* ---------- 22. Responsive ---------- */
@media (max-width:1080px){
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .nav-phone{display:none}
  .nav{margin-left:auto}
  .nav-actions{margin-left:auto}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:2rem 1.5rem}
  .step:not(:last-child)::after{display:none}
}
@media (max-width:900px){
  .grid-3,.case-grid,.industry-grid,.blog-grid,.related-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:2rem}
  .form-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav-link.next{text-align:left;align-items:flex-start}
  .post-nav-all{justify-self:center}
}
@media (max-width:640px){
  :root{--header-h:66px}
  .container{padding:0 18px}
  .grid-2,.grid-3,.grid-4,.case-grid,.industry-grid,.blog-grid,.related-grid{grid-template-columns:1fr}
  .hero{min-height:auto;padding-top:calc(var(--header-h) + 2.5rem);padding-bottom:3rem}
  .hero-slide{padding:2rem 0}
  .section{padding:2.75rem 0}
  .btn-row .btn{flex:1 1 100%}
  .float-cta{padding:.65rem 1rem;font-size:.82rem}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .article-body{font-size:1rem}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}