:root {
  --ink: #16323d;
  --ink-2: #244b58;
  --muted: #687a80;
  --line: rgba(22, 50, 61, 0.13);
  --paper: #f8faf8;
  --white: #ffffff;
  --green: #337f2b;
  --green-soft: #eaf3e7;
  --blue: #08739a;
  --blue-deep: #075773;
  --shadow: 0 28px 80px rgba(20, 55, 67, 0.12);
  --radius: 26px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Noto Sans Thai", "Leelawadee UI", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 16px; }

.section-grid {
  background-image: linear-gradient(rgba(20, 70, 85, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 70, 85, .045) 1px, transparent 1px);
  background-size: 46px 46px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled { background: rgba(248, 250, 248, .9); backdrop-filter: blur(16px); border-color: var(--line); box-shadow: 0 10px 40px rgba(26, 59, 71, .06); }
.nav-wrap { height: 86px; display: flex; align-items: center; justify-content: space-between; }
.brand { width: 190px; height: 80px; display: flex; align-items: center; overflow: hidden; }
.brand img { width: 100%; transform: scale(1.3); transform-origin: center; }
.site-nav { display: flex; align-items: center; gap: 32px; font-size: 14px; font-weight: 650; }
.site-nav > a:not(.nav-cta) { position: relative; }
.site-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 2px; background: var(--blue); transition: right .25s ease; }
.site-nav > a:not(.nav-cta):hover::after { right: 0; }
.nav-cta { background: var(--ink); color: #fff; padding: 11px 18px; border-radius: 999px; }
.menu-toggle { display: none; border: 0; background: none; padding: 8px; cursor: pointer; }
.menu-toggle span { display: block; width: 25px; height: 2px; background: var(--ink); margin: 5px; transition: .25s; }

.hero { min-height: 100svh; position: relative; display: flex; flex-direction: column; justify-content: center; padding: 140px 0 54px; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, rgba(248,250,248,.95) 0%, rgba(248,250,248,.82) 45%, rgba(238,247,246,.65) 100%); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: var(--blue); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .18em; }
.eyebrow span { width: 42px; height: 1px; background: var(--blue); }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(46px, 6vw, 82px); line-height: 1.06; letter-spacing: -.055em; margin: 24px 0 28px; font-weight: 760; }
h1 em { color: transparent; -webkit-text-stroke: 1.5px var(--blue); font-style: normal; }
.hero-lead { max-width: 640px; color: var(--muted); font-size: clamp(18px, 2vw, 21px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 38px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 15px; min-height: 52px; padding: 0 22px; border-radius: 999px; font-weight: 750; font-size: 14px; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--blue); color: #fff; box-shadow: 0 14px 32px rgba(8, 115, 154, .24); }
.btn-primary:hover { background: var(--blue-deep); }
.btn-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.5); }
.hero-meta { display: flex; gap: 26px; margin-top: 58px; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .12em; }
.hero-meta span { position: relative; }
.hero-meta span + span::before { content: "+"; position: absolute; left: -17px; color: var(--green); }

.hero-visual { min-height: 560px; display: grid; place-items: center; }
.network-stage { width: min(100%, 560px); aspect-ratio: 1; position: relative; }
.network-stage::before { content: ""; position: absolute; inset: 13%; border-radius: 50%; background: radial-gradient(circle at 46% 42%, rgba(255,255,255,.96), rgba(230,242,240,.62) 58%, rgba(255,255,255,0) 72%); box-shadow: inset 0 0 60px rgba(8,115,154,.08), 0 40px 100px rgba(32,90,103,.12); }
.network-ring { position: absolute; border: 1px solid rgba(8,115,154,.18); border-radius: 50%; animation: spin 24s linear infinite; }
.ring-a { inset: 9%; border-style: dashed; }
.ring-b { inset: 20%; border-color: rgba(51,127,43,.18); animation-direction: reverse; animation-duration: 18s; }
.network-ring::after { content: ""; position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--blue); top: 8%; left: 20%; box-shadow: 0 0 0 8px rgba(8,115,154,.09); }
.core-node { position: absolute; inset: 34%; background: rgba(255,255,255,.9); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,.9); border-radius: 50%; box-shadow: var(--shadow); display: flex; align-items: center; justify-content: center; font-size: clamp(18px, 3vw, 31px); font-weight: 850; letter-spacing: -.08em; color: #505050; }
.core-node b { color: var(--green); }
.core-node strong { color: var(--blue); }
.core-node small { position: absolute; bottom: 27%; font-size: 8px; letter-spacing: .13em; color: #9aa6aa; text-transform: uppercase; }
.core-i { margin-right: 1px; }
.data-node { position: absolute; display: flex; flex-direction: column; align-items: center; gap: 8px; border: 0; background: none; color: var(--ink); font-size: 11px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; cursor: pointer; }
.data-node i { width: 23px; height: 23px; border-radius: 50%; background: #fff; border: 6px solid var(--blue); box-shadow: 0 0 0 8px rgba(8,115,154,.08), 0 10px 24px rgba(20,70,85,.18); transition: transform .2s ease, box-shadow .2s ease; }
.data-node:nth-of-type(even) i { border-color: var(--green); box-shadow: 0 0 0 8px rgba(51,127,43,.08), 0 10px 24px rgba(20,70,85,.18); }
.data-node:hover i, .data-node.active i { transform: scale(1.18); box-shadow: 0 0 0 13px rgba(8,115,154,.1), 0 10px 24px rgba(20,70,85,.18); }
.node-people { top: 4%; left: 45%; }
.node-data { right: 3%; top: 46%; }
.node-service { bottom: 2%; left: 45%; }
.node-system { left: 2%; top: 46%; }
.network-line { position: absolute; height: 1px; width: 28%; background: linear-gradient(90deg, transparent, rgba(8,115,154,.45), transparent); top: 50%; left: 36%; transform-origin: center; }
.line-1 { transform: rotate(0deg); }.line-2 { transform: rotate(90deg); }.line-3 { transform: rotate(45deg); opacity:.35; }.line-4 { transform: rotate(-45deg); opacity:.35; }
.hero-footer { position: relative; margin-top: 56px; display: flex; align-items: center; gap: 22px; color: var(--muted); text-transform: uppercase; font-size: 10px; letter-spacing: .2em; }
.hero-footer p { margin-bottom: 0; }
.scroll-line { width: 120px; height: 1px; background: var(--line); overflow: hidden; }
.scroll-line span { display: block; width: 42px; height: 100%; background: var(--blue); animation: scrollLine 2.4s ease-in-out infinite; }
.orb { position: absolute; border-radius: 50%; filter: blur(2px); opacity: .25; }
.orb-one { width: 330px; height: 330px; right: -110px; top: 14%; background: rgba(8,115,154,.18); }
.orb-two { width: 180px; height: 180px; left: 34%; bottom: -70px; background: rgba(51,127,43,.18); }

.vision { padding: 130px 0; background: #fff; }
.split-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.section-kicker { color: var(--blue); font-weight: 800; font-size: 11px; text-transform: uppercase; letter-spacing: .2em; }
h2 { font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: -.045em; margin-bottom: 25px; }
h2 span { color: var(--green); }
.large-copy { font-size: clamp(21px, 2.3vw, 28px); line-height: 1.55; letter-spacing: -.02em; }
.vision-points { margin-top: 60px; display: grid; gap: 0; }
.vision-points article { display: grid; grid-template-columns: 54px 145px 1fr; gap: 20px; padding: 24px 0; border-top: 1px solid var(--line); align-items: baseline; }
.vision-points article:last-child { border-bottom: 1px solid var(--line); }
.vision-points span { color: var(--blue); font-size: 11px; font-weight: 800; }
.vision-points h3 { font-size: 20px; margin-bottom: 0; }
.vision-points p { color: var(--muted); margin-bottom: 0; }

.capabilities { padding: 130px 0; position: relative; }
.capabilities::before { content:""; position:absolute; inset:0; background:rgba(239,246,244,.82); }
.capabilities .container { position:relative; }
.section-heading { display: grid; grid-template-columns: 1fr .65fr; gap: 80px; align-items: end; margin-bottom: 56px; }
.section-heading > p { color: var(--muted); font-size: 18px; margin-bottom: 28px; }
.cap-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; grid-template-rows: auto auto; gap: 18px; }
.cap-card { min-height: 300px; padding: 31px; background: rgba(255,255,255,.88); border: 1px solid rgba(255,255,255,.9); border-radius: var(--radius); box-shadow: 0 18px 55px rgba(29,69,81,.07); display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease; }
.cap-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.cap-feature { grid-row: span 2; min-height: 620px; background: linear-gradient(160deg, #fff, #f0f6f4); }
.card-number { color: #9aa9ad; font-size: 10px; font-weight: 800; letter-spacing: .15em; }
.cap-card h3 { font-size: 25px; margin: auto 0 11px; letter-spacing: -.025em; }
.cap-card p { color: var(--muted); margin-bottom: 0; }
.cap-card ul { list-style: none; padding: 0; margin: 29px 0 0; color: var(--muted); font-size: 13px; }
.cap-card li { padding: 9px 0; border-top: 1px solid var(--line); }
.icon-shell { position: relative; width: 230px; aspect-ratio: 1; margin: 54px auto; border: 1px solid rgba(8,115,154,.16); border-radius: 50%; display: grid; place-items: center; }
.icon-shell::before, .icon-shell::after { content:""; position:absolute; border-radius:50%; border:1px dashed rgba(8,115,154,.18); }
.icon-shell::before { inset: 17%; }.icon-shell::after { inset: 34%; }
.pulse { width: 25px; height: 25px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 16px rgba(8,115,154,.1), 0 0 0 34px rgba(51,127,43,.06); animation: pulse 2.4s ease infinite; }
.mini-icon { width: 94px; height: 85px; margin-top: 38px; position: relative; }
.connected-icon span { position:absolute; width:17px; height:17px; border:4px solid var(--blue); border-radius:50%; background:white; }
.connected-icon span:nth-child(1){left:0;top:36px}.connected-icon span:nth-child(2){right:0;top:5px;border-color:var(--green)}.connected-icon span:nth-child(3){right:10px;bottom:0}
.connected-icon::before,.connected-icon::after{content:"";position:absolute;height:1px;background:var(--line);transform-origin:left}.connected-icon::before{width:76px;left:13px;top:43px;transform:rotate(-22deg)}.connected-icon::after{width:64px;left:19px;top:47px;transform:rotate(22deg)}
.flow-icon { display:flex; align-items:center; gap:8px; }
.flow-icon span { width:21px;height:51px;border-radius:12px;background:var(--blue);transform:skewX(-15deg);opacity:.28}.flow-icon span:nth-child(2){height:72px;background:var(--green);opacity:.7}.flow-icon span:nth-child(3){opacity:1}
.cap-dark { grid-column: span 2; background: var(--ink); color: #fff; }
.cap-dark p { color: #b9c8cc; max-width: 70%; }
.cap-dark a { margin-top: 34px; color: #fff; font-size: 13px; font-weight: 800; }
.scale-icon span { position:absolute; border:1px solid rgba(255,255,255,.35); border-radius:14px}.scale-icon span:first-child{inset:8px 20px 21px 2px}.scale-icon span:last-child{inset:24px 2px 5px 25px;background:rgba(8,115,154,.45)}

.approach { padding: 135px 0; background: #fff; }
.approach-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 110px; }
.approach-sticky { align-self: start; position: sticky; top: 130px; }
.approach-sticky > p:last-child { color: var(--muted); font-size: 18px; max-width: 470px; }
.steps { border-top: 1px solid var(--line); }
.step { display: grid; grid-template-columns: 80px 1fr; gap: 25px; padding: 48px 0; border-bottom: 1px solid var(--line); }
.step > span { color: var(--blue); font-size: 12px; font-weight: 800; }
.step h3 { font-size: clamp(25px, 3vw, 36px); letter-spacing: -.03em; margin-bottom: 13px; }
.step p { color: var(--muted); font-size: 17px; max-width: 620px; }

.cta { padding: 50px 0 100px; background: #fff; }
.cta-panel { min-height: 560px; position: relative; overflow: hidden; border-radius: 34px; background: linear-gradient(130deg, #123844, #075d78); color: #fff; padding: 80px; display: flex; align-items: center; }
.cta-panel::after { content:""; position:absolute; width:420px;height:420px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-80px;bottom:-170px;box-shadow:0 0 0 70px rgba(255,255,255,.035),0 0 0 140px rgba(255,255,255,.025); }
.cta-grid { position:absolute; inset:0; background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px; }
.cta-copy { position:relative; z-index:2; max-width:760px; }
.cta-copy .section-kicker { color:#8ed7eb; }
.cta-copy h2 span { color:#7fc471; }
.cta-copy > p:not(.section-kicker) { color:#c7d8dd; font-size:18px; max-width:650px; }
.btn-light { margin-top: 24px; background:#fff; color:var(--ink); }
.cta-mark { position:absolute; right:7%; top:16%; font-size:90px; font-weight:900; letter-spacing:-.1em; color:rgba(255,255,255,.08); transform:rotate(-9deg); }
.cta-mark b { color:rgba(125,196,113,.25); }.cta-mark strong{color:rgba(99,185,216,.25)}

footer { background:#fff; padding: 18px 0 44px; }
.footer-wrap { border-top:1px solid var(--line); padding-top:30px; display:flex; align-items:center; justify-content:space-between; gap:25px; color:var(--muted); font-size:12px; }
.footer-brand { display:flex; align-items:center; gap:14px; }
.footer-brand img { width:125px; height:34px; object-fit:cover; transform:scale(1.45); }
.footer-brand p, .footer-wrap > p { margin-bottom:0; }
.footer-wrap a { font-weight:750; color:var(--ink); }

.reveal { opacity:0; transform:translateY(24px); transition:opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity:1; transform:none; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 50% { transform: scale(1.1); box-shadow: 0 0 0 22px rgba(8,115,154,.06), 0 0 0 42px rgba(51,127,43,.03); } }
@keyframes scrollLine { 0%{transform:translateX(-45px)}50%{transform:translateX(120px)}100%{transform:translateX(-45px)} }

@media (max-width: 980px) {
  .hero-grid, .split-layout, .approach-grid { grid-template-columns: 1fr; gap: 60px; }
  .hero { padding-top: 120px; }
  .hero-visual { min-height: 470px; }
  .network-stage { max-width: 480px; }
  .split-layout { gap: 38px; }
  .section-heading { grid-template-columns: 1fr; gap: 8px; }
  .cap-grid { grid-template-columns: 1fr 1fr; }
  .cap-feature { grid-row: auto; grid-column: span 2; min-height: 560px; }
  .cap-dark { grid-column: span 2; }
  .approach-sticky { position:static; }
  .cta-panel { padding:65px 45px; }
}

@media (max-width: 760px) {
  .container { width:min(calc(100% - 28px), var(--container)); }
  .nav-wrap { height:74px; }
  .brand { width:150px; }
  .menu-toggle { display:block; z-index:3; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .site-nav { position:fixed; inset:0; background:rgba(248,250,248,.98); flex-direction:column; justify-content:center; gap:28px; font-size:21px; opacity:0; visibility:hidden; transition:.25s; }
  .site-nav.open { opacity:1; visibility:visible; }
  .hero-grid { gap:22px; }
  .hero { min-height:auto; padding:115px 0 45px; }
  h1 { font-size:clamp(42px,14vw,64px); }
  .hero-lead { font-size:17px; }
  .hero-meta { gap:19px; flex-wrap:wrap; margin-top:38px; }
  .hero-visual { min-height:365px; }
  .network-stage { max-width:360px; }
  .core-node { inset:32%; }
  .data-node span { display:none; }
  .hero-footer { margin-top:22px; }
  .vision, .capabilities, .approach { padding:90px 0; }
  .vision-points article { grid-template-columns:40px 1fr; }
  .vision-points article p { grid-column:2; }
  .cap-grid { grid-template-columns:1fr; }
  .cap-feature, .cap-dark { grid-column:auto; min-height:430px; }
  .icon-shell { width:170px; margin:35px auto; }
  .cap-dark p { max-width:100%; }
  .step { grid-template-columns:42px 1fr; padding:36px 0; }
  .cta { padding:20px 0 60px; }
  .cta-panel { min-height:590px; padding:55px 28px; border-radius:26px; align-items:flex-start; }
  .cta-mark { top:auto; bottom:8%; right:9%; font-size:70px; }
  .footer-wrap { flex-direction:column; align-items:flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  *, *::before, *::after { animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
  .reveal { opacity:1; transform:none; }
}