/* Tranexio site · shared design system (light · fresh · professional · tech) */
:root{
  --bg:#FFFFFF; --bg-alt:#F6F9FC; --bg-soft:#EEF3F9;
  --ink:#17223B; --navy:#294478; --navy-2:#3A5DA8;
  --green:#91B644; --green-deep:#5F8A1F;
  --text:#3A4763; --text-2:#65728D; --text-3:#94A0B5;
  --line:#E7ECF3; --line-2:#D7DEEA;
  --foot:#16223C; --foot-soft:#1E2D4C; --foot-text:#AAB6CF; --foot-line:rgba(255,255,255,.10);
  --radius:12px; --radius-lg:16px; --maxw:1140px;
  --font:"Inter","Noto Sans SC","Noto Sans TC",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
html[lang^="zh"]{--font:"Noto Sans SC","Inter",system-ui,sans-serif;}
html[lang="zh-TW"]{--font:"Noto Sans TC","Inter",system-ui,sans-serif;}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.18;letter-spacing:-.018em}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--green-deep);font-weight:600}
.muted{color:var(--text-2)}
.accent{color:var(--navy)}
.center{text-align:center}

.btn{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:14px;padding:11px 19px;border-radius:9px;border:1px solid transparent;cursor:pointer;transition:transform .16s,background .18s,border-color .18s,color .18s;font-family:var(--font)}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:#1f3461;transform:translateY(-1px)}
.btn-ghost{border-color:var(--line-2);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--navy);color:var(--navy);background:var(--bg-alt)}
.btn-sm{padding:8px 15px;font-size:13.5px}
.arrow{transition:transform .18s}
.btn:hover .arrow{transform:translateX(3px)}

/* nav */
header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:30px;height:30px;display:block}
.brand .wm{font-weight:700;font-size:18px;color:var(--ink);letter-spacing:-.01em;line-height:1.05}
.brand .sub{font-size:10.5px;color:var(--text-3);letter-spacing:.02em}
nav.links{display:flex;gap:24px;margin-left:10px}
nav.links a{font-size:14px;color:var(--text-2);font-weight:500;transition:color .15s}
nav.links a:hover,nav.links a.on{color:var(--ink)}
nav.links a.on{position:relative}
nav.links a.on::after{content:"";position:absolute;left:0;right:0;bottom:-22px;height:2px;background:var(--green)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.lang{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang button{background:#fff;border:0;color:var(--text-3);font-size:12px;font-weight:600;padding:6px 9px;cursor:pointer;font-family:var(--font);transition:.15s}
.lang button.on{background:var(--bg-soft);color:var(--navy)}
.lang button:hover{color:var(--ink)}
.menu-btn{display:none;background:#fff;border:1px solid var(--line);color:var(--ink);border-radius:8px;padding:6px 8px;cursor:pointer}

/* home hero */
.hero{position:relative;padding:78px 0 64px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:0;background-image:radial-gradient(circle at 1px 1px,rgba(41,68,120,.06) 1px,transparent 0);background-size:30px 30px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 75%);mask-image:linear-gradient(180deg,#000,transparent 75%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:46px;align-items:center}
.hero h1{font-size:32px;margin:14px 0 0}
html[lang^="zh"] .hero h1{white-space:nowrap}
.hero h1 .hl{color:var(--navy)}
.hero p.lead{font-size:14.5px;color:var(--text-2);margin:18px 0 26px;max-width:480px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:40px;flex-wrap:wrap}
.hero-stats .s b{font-size:22px;color:var(--ink);display:block;font-weight:700}
.hero-stats .s span{font-size:12.5px;color:var(--text-3)}
.hero-visual{position:relative;height:480px}

/* page hero (inner pages) */
.page-hero{position:relative;padding:64px 0 36px;border-bottom:1px solid var(--line);background:var(--bg-alt);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(41,68,120,.05) 1px,transparent 0);background-size:30px 30px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 80%);mask-image:linear-gradient(180deg,#000,transparent 80%)}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-size:34px;margin:12px 0 14px;max-width:760px}
.page-hero p{font-size:16px;color:var(--text-2);max-width:680px}

/* sections */
.band{padding:80px 0}
.band.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band.tight{padding:56px 0}
.sec-head{max-width:680px;margin-bottom:42px}
.sec-head.center{margin-left:auto;margin-right:auto}
.sec-head h2{font-size:29px;margin:13px 0 13px}
.sec-head p{font-size:15.5px;color:var(--text-2)}

/* trust */
.trust{padding:26px 0;border-bottom:1px solid var(--line)}
.trust-in{display:flex;align-items:center;gap:34px;flex-wrap:wrap;justify-content:center}
.trust .chip{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);font-weight:500}
.trust .chip svg{width:15px;height:15px;stroke:var(--green-deep);fill:none;stroke-width:2.2}

/* modes / card grids */
.modes{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.mode{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 18px;transition:transform .18s,border-color .18s,box-shadow .2s}
.mode:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:0 10px 30px -16px rgba(23,34,59,.22)}
.mode .ic{width:36px;height:36px;border-radius:9px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;margin-bottom:13px}
.mode .ic svg{width:19px;height:19px;stroke:var(--navy);fill:none;stroke-width:1.7}
.mode h3{font-size:15px;font-weight:600;color:var(--ink)}
.mode p{font-size:12.5px;color:var(--text-3);margin-top:4px;line-height:1.5}
.overlays{display:flex;gap:9px;flex-wrap:wrap;margin-top:22px;align-items:center}
.overlay-chip{font-size:12.5px;color:var(--text-2);border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:#fff}
.overlay-chip.lead-chip{border:0;color:var(--text-3);padding-left:0}
.overlay-chip b{color:var(--green-deep);font-weight:600}

/* pillars */
.pillars{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.pillars.cols-3{grid-template-columns:repeat(3,1fr)}
.pillar{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;transition:border-color .18s,box-shadow .2s}
.pillar:hover{border-color:var(--line-2);box-shadow:0 12px 34px -18px rgba(23,34,59,.2)}
.pillar .pn{font-size:12px;color:var(--green-deep);font-weight:700;letter-spacing:.04em}
.pillar .pic{width:38px;height:38px;border-radius:10px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.pillar .pic svg{width:20px;height:20px;stroke:var(--navy);fill:none;stroke-width:1.7}
.pillar h3{font-size:18px;margin:9px 0 9px;font-weight:700}
.pillar p{font-size:14px;color:var(--text-2)}

/* split feature row (text + diagram) */
.feature{display:grid;grid-template-columns:1fr 1.05fr;gap:46px;align-items:center;padding:18px 0}
.feature.rev .ftext{order:2}
.feature .ftext h3{font-size:23px;margin:12px 0 12px}
.feature .ftext p{font-size:15px;color:var(--text-2);margin-bottom:14px}
.feature ul.ticks{list-style:none;display:flex;flex-direction:column;gap:9px}
.feature ul.ticks li{position:relative;padding-left:26px;font-size:14px;color:var(--text)}
.feature ul.ticks li::before{content:"";position:absolute;left:0;top:7px;width:14px;height:14px;background:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235F8A1F' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E")}

/* diagram frame */
.diagram{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:0 16px 44px -28px rgba(23,34,59,.22)}
.diagram svg{display:block;width:100%;height:auto}
.diagram.alt{background:var(--bg-alt)}

/* architecture cells (used on home) */
.arch{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:0 14px 40px -26px rgba(23,34,59,.2)}
.arch-row{display:flex;align-items:stretch;gap:10px;margin:9px 0;flex-wrap:wrap}
.arch-lbl{flex:0 0 120px;display:flex;align-items:center;font-size:11.5px;color:var(--text-3);font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.arch-cells{flex:1;display:flex;gap:9px;flex-wrap:wrap}
.arch-cell{flex:1;min-width:118px;background:var(--bg-alt);border:1px solid var(--line);border-radius:9px;padding:12px 13px;font-size:13px;color:var(--ink)}
.arch-cell.navyline{border-color:rgba(41,68,120,.35);background:rgba(41,68,120,.05)}
.arch-cell.greenline{border-color:rgba(145,182,68,.45);background:rgba(145,182,68,.08)}

/* steps / lifecycle */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.step .sn{font-size:12px;font-weight:700;color:var(--green-deep)}
.step h4{font-size:15px;margin:8px 0 6px;font-weight:600}
.step p{font-size:12.5px;color:var(--text-3)}

/* metric row */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric{background:var(--bg-alt);border-radius:var(--radius);padding:22px}
.metric b{display:block;font-size:28px;color:var(--ink);font-weight:700}
.metric span{font-size:13px;color:var(--text-3)}

/* resources / downloads */
.dl-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:start}
.dl-card{border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;background:#fff}
.dl-card .tag{display:inline-block;font-size:11.5px;font-weight:600;color:var(--green-deep);background:rgba(145,182,68,.12);border-radius:6px;padding:3px 10px;margin-bottom:12px}
.dl-card h3{font-size:18px;margin-bottom:8px}
.dl-card p{font-size:14px;color:var(--text-2);margin-bottom:14px}
.dl-list{list-style:none}
.dl-list li{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.dl-list li:last-child{border-bottom:0}
.dl-list .di{width:34px;height:34px;border-radius:8px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.dl-list .di svg{width:18px;height:18px;stroke:var(--navy);fill:none;stroke-width:1.7}
.dl-list b{font-size:14px;color:var(--ink);font-weight:600;display:block}
.dl-list span{font-size:12.5px;color:var(--text-3)}
.dl-list .go{margin-left:auto;font-size:13px;color:var(--navy);font-weight:600}

/* forms */
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form .full{grid-column:1/-1}
.field label{display:block;font-size:12.5px;color:var(--text-2);font-weight:500;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line-2);border-radius:9px;padding:11px 13px;font-size:14px;font-family:var(--font);color:var(--ink);background:#fff;transition:border-color .15s,box-shadow .15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(41,68,120,.10)}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-size:12px;color:var(--text-3);margin-top:4px}

/* contact info */
.cgrid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.cinfo .row{display:flex;gap:13px;padding:14px 0;border-bottom:1px solid var(--line)}
.cinfo .row:last-child{border-bottom:0}
.cinfo .ci{width:38px;height:38px;border-radius:9px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.cinfo .ci svg{width:18px;height:18px;stroke:var(--navy);fill:none;stroke-width:1.7}
.cinfo .row h4{font-size:13px;color:var(--text-3);font-weight:600;margin-bottom:3px}
.cinfo .row p,.cinfo .row a{font-size:14.5px;color:var(--ink)}
.map{margin-top:18px;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-alt);height:240px;display:flex;align-items:center;justify-content:center;color:var(--text-3);font-size:13px;position:relative}

/* faq */
.faq details{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px;background:#fff;overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:16px 20px;font-size:15px;font-weight:600;color:var(--ink);display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--navy);font-size:20px;font-weight:400}
.faq details[open] summary::after{content:"\2013"}
.faq .a{padding:0 20px 18px;font-size:14px;color:var(--text-2)}

/* cta band */
.cta-band{position:relative;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;padding:50px 44px;display:grid;grid-template-columns:1.3fr auto;gap:30px;align-items:center;background:linear-gradient(180deg,#fff,var(--bg-alt))}
.cta-band h2{font-size:26px;margin:10px 0 10px}
.cta-band p{color:var(--text-2);max-width:520px;font-size:15px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
footer{background:var(--foot);color:var(--foot-text);padding:60px 0 28px}
footer .wm{color:#fff}
footer .brand .sub{color:#7E8CAB}
.foot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.foot-brand p{font-size:13px;color:#8E9BB8;max-width:320px;margin-top:14px}
.foot-col h4{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:#7E8CAB;margin-bottom:14px;font-weight:600}
.foot-col a,.foot-col p{display:block;font-size:13.5px;color:var(--foot-text);margin-bottom:9px}
.foot-col a:hover{color:#fff}
.foot-bottom{border-top:1px solid var(--foot-line);margin-top:42px;padding-top:22px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:#7E8CAB}
.foot-bottom a{color:#7E8CAB}.foot-bottom a:hover{color:#fff}

[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
[data-reveal].in{opacity:1;transform:none}

@media(max-width:920px){
  nav.links{display:none}
  .menu-btn{display:inline-flex}
  .hero-grid{grid-template-columns:1fr}.hero-visual{height:320px;order:-1}
  .hero h1,html[lang^="zh"] .hero h1{font-size:27px;white-space:normal}
  .hero-stats .s:nth-child(n+4){display:none}
  .modes{grid-template-columns:repeat(2,1fr)}
  .pillars,.pillars.cols-3{grid-template-columns:1fr}
  .feature,.feature.rev .ftext{grid-template-columns:1fr;order:0}
  .steps,.metrics{grid-template-columns:repeat(2,1fr)}
  .dl-grid,.cgrid,.cta-band{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .arch-lbl{flex-basis:100%}
  .page-hero h1{font-size:28px}
}
@media(max-width:560px){
  .modes,.steps,.metrics,.form,.foot-grid{grid-template-columns:1fr}
  .hero h1,html[lang^="zh"] .hero h1{font-size:23px}
}
/* mobile nav drawer */
.mnav{display:none;position:fixed;inset:64px 0 auto 0;background:#fff;border-bottom:1px solid var(--line);z-index:49;padding:10px 28px 18px;flex-direction:column;gap:4px;box-shadow:0 20px 40px -24px rgba(23,34,59,.3)}
.mnav.open{display:flex}
.mnav a{padding:11px 4px;font-size:15px;color:var(--ink);border-bottom:1px solid var(--line)}