:root{
  --navy:#12314f; --navy-deep:#0b2136; --navy-soft:#1d4269;
  --gold:#c2a15c; --gold-light:#d9bd85;
  --ink:#2b3440; --gray:#6b7684; --line:#e3e7ec; --bg-soft:#f6f8fa;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{overflow-x:hidden;font-family:"Segoe UI","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:Georgia,"Times New Roman",serif;color:var(--navy);font-weight:600}
a{text-decoration:none;color:inherit;transition:all .25s}
img{display:block;max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 26px}
.section{padding:88px 0}
.section.alt{background:var(--bg-soft)}
.section.tight{padding:56px 0}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:3.5px;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:16px}
.section-title{font-size:34px;line-height:1.25;margin-bottom:18px}
.section-sub{color:var(--gray);max-width:780px;margin-bottom:46px}
.center{text-align:center}
.center .section-sub{margin-left:auto;margin-right:auto}
.btn{display:inline-block;padding:14px 34px;font-size:13px;letter-spacing:1.8px;text-transform:uppercase;font-weight:700;border-radius:2px;cursor:pointer;border:none;font-family:inherit}
.btn-gold{background:var(--gold);color:var(--navy-deep)}
.btn-gold:hover{background:var(--gold-light)}
.btn-line{border:1px solid rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-line:hover{background:rgba(255,255,255,.14)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-soft)}
.btn-outline{border:1px solid var(--line);color:var(--navy);background:#fff}
.btn-outline:hover{border-color:var(--gold);color:var(--gold)}

/* topbar */
.topbar{background:var(--navy-deep);color:#9db0c3;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar .l{display:flex;gap:26px;align-items:center;white-space:nowrap}
.topbar a:hover{color:var(--gold-light)}
.lang{color:var(--gold-light);font-weight:700;letter-spacing:.5px}

/* header */
header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.985);box-shadow:0 1px 0 var(--line),0 8px 30px rgba(11,33,54,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;gap:20px}
.logo{display:flex;align-items:center;gap:14px;flex:none}
.logo-mark{width:44px;height:44px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-family:Georgia,serif;font-size:22px;border-radius:2px;position:relative}
.logo-mark::after{content:"";position:absolute;bottom:7px;left:9px;right:9px;height:2px;background:var(--gold)}
.logo-name{font-family:Georgia,serif;font-size:23px;letter-spacing:4px;color:var(--navy);font-weight:700;line-height:1.1}
.logo-tag{font-size:10px;letter-spacing:2.1px;color:var(--gray);text-transform:uppercase}
.nav-menu{display:flex;align-items:center;gap:26px;font-size:12.5px;font-weight:700;letter-spacing:.7px;text-transform:uppercase}
.nav-menu>a,.nav-item>a{color:var(--ink);padding:9px 0;border-bottom:2px solid transparent;display:inline-block}
.nav-menu>a:hover,.nav-item:hover>a{color:var(--navy);border-bottom-color:var(--gold)}
.nav-item{position:relative}
.nav-item>a::after{content:"";display:inline-block;margin-left:6px;vertical-align:middle;border:4px solid transparent;border-top-color:currentColor;transform:translateY(2px)}
.dropdown{position:absolute;top:100%;left:-20px;width:300px;background:#fff;border:1px solid var(--line);box-shadow:0 22px 50px rgba(11,33,54,.16);padding:12px 0;display:none;transform:translateY(8px);transition:.22s}
.nav-item:hover .dropdown{display:block;transform:translateY(0)}
.dropdown a{display:block;padding:9px 22px;font-size:12.5px;letter-spacing:.4px;color:var(--ink);text-transform:none;font-weight:600;border:none}
.dropdown a:hover{background:var(--bg-soft);color:var(--navy)}
.dropdown a span{display:block;font-size:11px;color:var(--gray);font-weight:400;letter-spacing:.3px}
.nav-cta{background:var(--navy);color:#fff!important;padding:11px 22px!important;border-radius:2px;font-size:11.5px;letter-spacing:1.2px;border:none!important}
.nav-cta:hover{background:var(--navy-soft)!important}

/* hero home */
.hero{position:relative;background:var(--navy-deep);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url("../img/rail-hero.jpg") center 45%/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,27,44,.95) 0%,rgba(11,33,54,.87) 45%,rgba(11,33,54,.55) 100%)}
.hero-inner{position:relative;padding:112px 26px 96px;max-width:860px}
.hero h1{color:#fff;font-size:52px;line-height:1.14;margin:18px 0 22px;letter-spacing:-.5px}
.hero h1 em{color:var(--gold-light);font-style:normal}
.hero p{font-size:17.5px;color:#c5d3e0;max-width:680px;margin-bottom:36px}
.hero .btn+.btn{margin-left:12px}
.hero-strip{position:relative;border-top:1px solid rgba(255,255,255,.14);background:rgba(6,20,33,.55)}
.hero-strip .container{display:grid;grid-template-columns:repeat(4,1fr)}
.hero-strip .cell{padding:24px 16px;text-align:center;border-left:1px solid rgba(255,255,255,.1)}
.hero-strip .cell:first-child{border-left:none}
.hero-strip b{display:block;font-family:Georgia,serif;font-size:22px;color:#fff;letter-spacing:1px}
.hero-strip small{color:#93a8bd;font-size:10.5px;letter-spacing:2px;text-transform:uppercase}

/* category page hero */
.page-hero{background:var(--navy-deep);color:#fff;position:relative;overflow:hidden}
.page-hero .ph-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.32}
.page-hero .ph-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(9,27,44,.96),rgba(9,27,44,.6))}
.page-hero .container{position:relative;padding:66px 26px 54px}
.crumb{font-size:12px;letter-spacing:1.2px;color:#93a8bd;text-transform:uppercase;margin-bottom:20px}
.crumb a:hover{color:var(--gold-light)}
.crumb span{margin:0 8px;color:#5d768e}
.page-hero h1{color:#fff;font-size:44px;line-height:1.15;margin-bottom:16px}
.page-hero .lead{color:#c5d3e0;font-size:17px;max-width:720px}
.ph-meta{display:flex;gap:44px;margin-top:34px;flex-wrap:wrap}
.ph-meta div b{display:block;font-family:Georgia,serif;font-size:24px;color:var(--gold-light)}
.ph-meta div small{font-size:11px;letter-spacing:1.8px;text-transform:uppercase;color:#8ea3b8}

/* rail */
.rail{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:76px;z-index:90;overflow-x:auto}
.rail .container{display:flex;gap:8px;align-items:center;height:54px}
.rail a{font-size:12.5px;font-weight:700;letter-spacing:.5px;color:var(--gray);padding:6px 0;margin-right:22px;white-space:nowrap;border-bottom:2px solid transparent}
.rail a:hover,.rail a.on{color:var(--navy);border-bottom-color:var(--gold)}

/* intro split */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split.rev{grid-template-columns:.95fr 1.05fr}
.split img{width:100%;height:100%;object-fit:cover;border-radius:2px}
.split .ph{height:400px;overflow:hidden}
.split h2{font-size:30px;margin-bottom:16px}
.split p{color:var(--gray);margin-bottom:13px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.chips span{font-size:12px;letter-spacing:.4px;color:var(--navy-soft);background:var(--bg-soft);border:1px solid var(--line);padding:6px 12px;border-radius:2px}

/* category cards on home */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{position:relative;overflow:hidden;border:1px solid var(--line);background:#fff;display:flex;flex-direction:column}
.cat-card .im{height:230px;overflow:hidden;position:relative}
.cat-card .im img{width:100%;height:100%;object-fit:cover;transition:transform .7s}
.cat-card:hover .im img{transform:scale(1.06)}
.cat-card .no{position:absolute;top:14px;left:16px;z-index:2;background:rgba(9,27,44,.78);color:var(--gold-light);font-family:Georgia,serif;font-size:13px;letter-spacing:2px;padding:4px 9px}
.cat-card .tx{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column}
.cat-card h3{font-size:19px;margin-bottom:8px}
.cat-card p{font-size:13.5px;color:var(--gray);margin-bottom:16px}
.cat-card .go{margin-top:auto;font-size:11.5px;letter-spacing:1.4px;text-transform:uppercase;font-weight:700;color:var(--gold)}
.cat-card:hover .go{color:var(--navy)}
.cat-card .cnt{font-size:11.5px;color:var(--gray);letter-spacing:.6px;margin-bottom:10px}

/* product grid */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filters button{font-family:inherit;font-size:12.5px;letter-spacing:.6px;font-weight:700;color:var(--gray);background:#fff;border:1px solid var(--line);padding:9px 18px;border-radius:2px;cursor:pointer;transition:.2s}
.filters button:hover{border-color:var(--gold);color:var(--navy)}
.filters button.on{background:var(--navy);border-color:var(--navy);color:#fff}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:2px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .3s,transform .3s}
.pcard:hover{box-shadow:0 16px 40px rgba(11,33,54,.13);transform:translateY(-3px)}
.pcard .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:#eef2f5}
.pcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.pcard:hover .thumb img{transform:scale(1.05)}
.pcard .tagline{position:absolute;left:10px;top:10px;background:rgba(9,27,44,.82);color:#e6d3ac;font-size:10px;letter-spacing:1.4px;text-transform:uppercase;padding:4px 8px;font-weight:700}
.pcard .body{padding:15px 17px 17px;flex:1;display:flex;flex-direction:column}
.pcard h4{font-size:15.5px;line-height:1.4;margin-bottom:7px;font-family:"Segoe UI",Arial,sans-serif;font-weight:700;color:var(--navy)}
.pcard .spec{font-size:12.5px;color:var(--gray);letter-spacing:.3px;margin-bottom:12px;line-height:1.6}
.pcard .spec b{color:var(--navy-soft);font-weight:600}
.pcard .enq{margin-top:auto;font-size:11px;letter-spacing:1.4px;text-transform:uppercase;font-weight:700;color:var(--gold)}
.pcard .enq:hover{color:var(--navy)}
.group-title{display:flex;align-items:baseline;gap:14px;margin:52px 0 22px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.group-title:first-of-type{margin-top:0}
.group-title h3{font-size:22px}
.group-title span{font-size:12px;letter-spacing:1.6px;text-transform:uppercase;color:var(--gray)}

/* spec table */
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px;background:#fff;border:1px solid var(--line)}
.spec-table th,.spec-table td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.spec-table th{background:var(--navy);color:#fff;font-size:11.5px;letter-spacing:1.2px;text-transform:uppercase;font-weight:700}
.spec-table tr:nth-child(even) td{background:#fbfcfd}
.spec-table td:first-child{font-weight:600;color:var(--navy)}
.table-wrap{overflow-x:auto}

/* swatches */
.sw-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.sw{background:#fff;border:1px solid var(--line);padding:16px}
.sw .c{height:74px;margin-bottom:12px}
.sw b{display:block;font-size:13.5px;color:var(--navy)}
.sw small{font-size:12px;color:var(--gray)}
.sw-grid.two{grid-template-columns:repeat(2,1fr)}

/* advantage/feature */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv{background:#fff;border:1px solid var(--line);border-top:3px solid var(--gold);padding:26px 20px}
.adv .ico{width:40px;height:40px;border-radius:50%;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--navy);font-family:Georgia,serif;font-size:15px;font-weight:700}
.adv h4{font-size:15px;margin-bottom:8px;font-family:"Segoe UI",Arial,sans-serif;font-weight:700;letter-spacing:.3px}
.adv p{font-size:13px;color:var(--gray);line-height:1.65}

/* application strip */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case{position:relative;overflow:hidden;border-radius:2px}
.case img{width:100%;height:260px;object-fit:cover;transition:transform .7s}
.case:hover img{transform:scale(1.06)}
.case .cap{position:absolute;inset:auto 0 0 0;padding:44px 20px 16px;background:linear-gradient(transparent,rgba(8,24,39,.9))}
.case .cap b{display:block;color:#fff;font-family:Georgia,serif;font-size:16px}
.case .cap span{font-size:11.5px;color:#b9c9d8;letter-spacing:.6px}

/* industries */
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.ind{background:linear-gradient(150deg,var(--navy-deep),var(--navy));color:#fff;padding:26px 20px;position:relative;overflow:hidden}
.ind:hover{background:linear-gradient(150deg,#12314f,#2a527c)}
.ind b{display:block;font-family:Georgia,serif;font-size:16px;margin-bottom:4px}
.ind span{font-size:11.5px;color:#a3b7ca;letter-spacing:.5px}

/* process */
.proc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.proc{background:#fff;border:1px solid var(--line);padding:28px 22px}
.proc::before{counter-increment:step;content:"0" counter(step);font-family:Georgia,serif;font-size:30px;color:var(--gold);display:block;margin-bottom:10px}
.proc h4{font-size:15.5px;margin-bottom:7px}
.proc p{font-size:13px;color:var(--gray)}

/* faq */
.faq{max-width:900px}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);font-size:15.5px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold);font-size:20px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--gray);font-size:14px;padding-top:12px;max-width:820px}

/* related */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rel{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);padding:12px}
.rel img{width:104px;height:78px;object-fit:cover;flex:none}
.rel b{display:block;font-size:14.5px;color:var(--navy);font-family:Georgia,serif}
.rel span{font-size:11.5px;color:var(--gray);letter-spacing:.5px}
.rel:hover{border-color:var(--gold)}

/* cta band */
.cta-band{background:var(--navy-deep);color:#fff;padding:64px 0;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:340px;height:340px;border:1px solid rgba(194,161,92,.25);border-radius:50%}
.cta-band .container{display:flex;justify-content:space-between;align-items:center;gap:40px;position:relative}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-band p{color:#a9bccd;max-width:620px}

/* contact */
.contact-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:start}
.contact-info h3{font-size:26px;margin-bottom:14px}
.contact-info>p{color:var(--gray);margin-bottom:24px}
.c-row{display:flex;gap:15px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--line)}
.c-row .dot{width:38px;height:38px;flex:none;border-radius:50%;background:var(--navy);color:var(--gold-light);display:flex;align-items:center;justify-content:center;font-size:14px}
.c-row b{display:block;font-size:10.5px;letter-spacing:2px;text-transform:uppercase;color:var(--gray)}
.c-row span{color:var(--navy);font-weight:600;font-size:14.5px}
form{background:#fff;border:1px solid var(--line);padding:32px;box-shadow:0 16px 44px rgba(11,33,54,.08)}
.f-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
form input,form select,form textarea{width:100%;padding:12px 13px;border:1px solid #d7dee6;border-radius:2px;font-size:14px;color:var(--ink);font-family:inherit;background:var(--bg-soft)}
form input:focus,form select:focus,form textarea:focus{outline:none;border-color:var(--gold);background:#fff}
form textarea{height:112px;resize:vertical}
form .full{grid-column:1/-1;margin-bottom:14px}

/* footer */
footer{background:var(--navy-deep);color:#8ea3b8;padding:60px 0 0;font-size:14px}
.f-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px;padding-bottom:44px}
.f-cols h5{color:#fff;font-family:Georgia,serif;font-size:15px;margin-bottom:15px;letter-spacing:.6px}
.f-cols a{display:block;padding:4px 0;font-size:13px}
.f-cols a:hover{color:var(--gold-light)}
.f-logo{font-family:Georgia,serif;color:#fff;font-size:22px;letter-spacing:5px;margin-bottom:12px}
.slogan{font-family:Georgia,serif;color:#c2d1df;letter-spacing:1.4px;margin-top:14px;font-size:13.5px}
.f-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;justify-content:space-between;font-size:12px;color:#6c8199;gap:16px;flex-wrap:wrap}

@media(max-width:1080px){
  .pgrid{grid-template-columns:repeat(3,1fr)}
  .cat-grid,.app-grid,.rel-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .sw-grid{grid-template-columns:repeat(2,1fr)}
  .nav-menu{gap:18px}
  .dropdown{width:270px}
}
@media(max-width:900px){
  .split,.split.rev,.contact-wrap{grid-template-columns:1fr;gap:38px}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .f-cols{grid-template-columns:1fr 1fr}
  .hero-strip .container{grid-template-columns:repeat(2,1fr)}
  .hero-strip .cell{border-left:none;border-top:1px solid rgba(255,255,255,.1)}
  .hero h1{font-size:38px}
  .page-hero h1{font-size:34px}
  .nav-menu>a:not(.nav-cta){display:none}
  .nav-item{display:none}
  .proc-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band .container{flex-direction:column;align-items:flex-start}
}
@media(max-width:760px){
  .topbar .l{display:none}
  .topbar .container{justify-content:center;height:34px;font-size:11.5px}
  .topbar{font-size:11.5px}
  .hero p,.page-hero .lead{font-size:16px}
  .page-hero .container{padding:48px 22px 42px}
  .ph-meta{gap:26px;margin-top:26px}
  .ph-meta div b{font-size:20px}
  .rail .container{height:48px;padding:0 22px}
  .rail a{margin-right:16px;font-size:12px}
}
@media(max-width:640px){
  .pgrid,.cat-grid,.app-grid,.rel-grid,.adv-grid,.sw-grid,.ind-grid,.f-cols,.f-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .hero h1{font-size:30px}
  .hero-inner{padding:74px 22px 62px}
  .about-photos{grid-template-columns:1fr}
  .rail{top:64px}
  .ph-meta{gap:24px}
}