/* GreenRay Technology Pte. Ltd. — corporate site styles */
:root {
  --green: #2FA84F;
  --green-dark: #1E7A38;
  --green-light: #E8F5EC;
  --navy: #0F2B46;
  --ink: #1C2B36;
  --gray: #5A6B7A;
  --line: #E3EAE5;
  --bg: #F6F9F7;
  --white: #FFFFFF;
  --shadow: 0 10px 30px rgba(15, 43, 70, .10);
  --radius: 14px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(1200px, 92%); margin: 0 auto; }
.section { padding: 88px 0; }
.section.alt { background: var(--bg); }
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 54px; }
.sec-head .kicker {
  display: inline-block; color: var(--green-dark); font-weight: 700;
  letter-spacing: 2.5px; text-transform: uppercase; font-size: 13px; margin-bottom: 10px;
}
.sec-head h2 { font-size: clamp(26px, 3.4vw, 38px); color: var(--navy); line-height: 1.25; }
.sec-head p { color: var(--gray); margin-top: 14px; }
.underline::after {
  content: ""; display: block; width: 64px; height: 4px; border-radius: 2px;
  background: var(--green); margin: 18px auto 0;
}

/* ---------- top bar ---------- */
.topbar { background: var(--navy); color: #cfe0ee; font-size: 13px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; min-height: 38px; gap: 12px; flex-wrap: wrap; }
.topbar a { color: #fff; }
.topbar .tb-left { display: flex; gap: 22px; flex-wrap: wrap; }
.lang-switch { display: flex; align-items: center; gap: 6px; cursor: pointer; user-select: none; }
.lang-switch span { padding: 2px 8px; border-radius: 4px; opacity: .65; }
.lang-switch span.active { background: var(--green); color: #fff; opacity: 1; font-weight: 600; }

/* ---------- header ---------- */
header.site {
  position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.97);
  box-shadow: 0 2px 14px rgba(0,0,0,.08); backdrop-filter: blur(6px);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { flex: none; display: block; }
.brand img { height: 52px; width: auto; }
nav.main { min-width: 0; }
nav.main ul {
  display: flex; display: -webkit-flex; display: -ms-flexbox;
  flex-wrap: nowrap; gap: 6px; list-style: none;
}
nav.main > ul > li > a {
  display: block; padding: 10px 15px; font-size: 15px; font-weight: 600;
  color: var(--ink); border-radius: 8px; transition: .2s; white-space: nowrap;
}
nav.main a:hover, nav.main a.active { color: var(--green-dark); background: var(--green-light); }
.nav-cta {
  background: var(--green); color: #fff !important; padding: 10px 20px !important; border-radius: 24px !important;
}
.nav-cta:hover { background: var(--green-dark) !important; }

/* ---------- dropdown submenu (FII-style) ---------- */
nav.main li.has-sub { position: relative; }
nav.main li.has-sub > a .caret {
  display: inline-block; margin-left: 6px; font-size: 10px; line-height: 1; opacity: .7;
  transition: transform .2s; transform: translateY(1px);
}
nav.main li.has-sub:hover > a .caret { transform: translateY(1px) rotate(180deg); }
nav.main .sub {
  display: block; position: absolute; top: 100%; left: 0; min-width: 240px; max-width: 340px;
  background: #fff; border-top: 3px solid var(--green); border-radius: 0 0 12px 12px;
  box-shadow: 0 16px 34px rgba(15,43,70,.16); padding: 8px;
  list-style: none; z-index: 120;
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: opacity .2s, transform .2s;
}
nav.main li.has-sub:hover > .sub,
nav.main li.has-sub:focus-within > .sub { opacity: 1; visibility: visible; transform: translateY(0); }
nav.main .sub li a {
  display: block; padding: 10px 14px; font-size: 14px; font-weight: 500; color: var(--ink);
  border-radius: 8px; white-space: normal; line-height: 1.4;
}
nav.main .sub li a:hover { background: var(--green-light); color: var(--green-dark); }
/* keep right-edge dropdowns inside the viewport */
nav.main li.has-sub:nth-last-child(-n+2) > .sub { left: auto; right: 0; }
/* offset so anchor targets aren't hidden under the sticky header */
section[id], .tech-card, .app-card, .case-card, .g-card, .timeline, table.spec { scroll-margin-top: 120px; }

/* standalone pages (not the homepage) need top padding so the first section clears the sticky header */
body:not([data-page="home"]) .section { padding-top: 150px; }
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.burger i { width: 24px; height: 3px; background: var(--navy); border-radius: 2px; display: block; }

/* ---------- density tiers: keep the top nav horizontal down to 620px ---------- */
@media (max-width: 1150px) {
  .brand img { height: 42px; }
  nav.main > ul > li > a { padding: 10px 9px; font-size: 13.5px; }
  .nav-cta { padding: 9px 16px !important; }
}
@media (max-width: 940px) {
  .topbar .tb-left { display: none; }
  .topbar .container { justify-content: flex-end; min-height: 34px; }
  /* two-row header: logo centered above a full-width horizontal menu */
  .nav-wrap { flex-direction: column; height: auto; gap: 8px; padding: 10px 0 12px; }
  .brand img { height: 40px; }
  nav.main { width: 100%; }
  nav.main ul { justify-content: center; gap: 2px; }
  section[id], .tech-card, .app-card, .case-card, .g-card, .timeline, table.spec { scroll-margin-top: 170px; }
}
@media (max-width: 760px) {
  nav.main > ul > li > a { padding: 8px 7px; font-size: 12.5px; }
  .brand img { height: 36px; }
  .nav-cta { padding: 8px 13px !important; }
}

/* ---------- hero ---------- */
.hero { position: relative; min-height: 620px; display: flex; align-items: center; color: #fff; overflow: hidden; }
.hero .slides { position: absolute; inset: 0; }
.hero .slides .slide {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.4s ease; transform: scale(1.04);
}
.hero .slides .slide.on { opacity: 1; transform: scale(1); transition: opacity 1.4s ease, transform 7s linear; }
.hero .veil { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(9,32,22,.88) 8%, rgba(9,32,22,.55) 55%, rgba(9,32,22,.25)); }
.hero .container { position: relative; z-index: 2; padding: 90px 0; }
.hero .tag { display: inline-block; border: 1px solid rgba(255,255,255,.5); padding: 6px 16px; border-radius: 20px; font-size: 13px; letter-spacing: 2px; margin-bottom: 22px; }
.hero h1 { font-size: clamp(30px, 5vw, 54px); line-height: 1.18; max-width: 820px; font-weight: 800; }
.hero h1 em { color: #7BE09A; font-style: normal; }
.hero p.sub { margin: 22px 0 34px; font-size: clamp(15px, 1.7vw, 19px); max-width: 680px; color: #E4EFE7; }
.btn { display: inline-block; padding: 13px 30px; border-radius: 30px; font-weight: 700; font-size: 15px; transition: .25s; margin-right: 12px; }
.btn.solid { background: var(--green); color: #fff; }
.btn.solid:hover { background: var(--green-dark); transform: translateY(-2px); }
.btn.ghost { border: 1.6px solid rgba(255,255,255,.75); color: #fff; }
.btn.ghost:hover { background: rgba(255,255,255,.14); }
.hero .dots { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; gap: 9px; z-index: 3; }
.hero .dots i { width: 26px; height: 4px; border-radius: 2px; background: rgba(255,255,255,.4); cursor: pointer; }
.hero .dots i.on { background: #fff; }

/* ---------- stats ---------- */
.stats { background: var(--navy); color: #fff; padding: 40px 0; }
.stats .grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stats b { font-size: clamp(26px, 3vw, 40px); color: #7BE09A; display: block; }
.stats span { font-size: 14px; color: #B9CBDA; }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 52px; align-items: center; }
.about-grid > div:only-child { grid-column: 1 / -1; }
.vm-card { border-left: 5px solid var(--green); background: var(--green-light); padding: 26px 28px; border-radius: 0 var(--radius) var(--radius) 0; margin-bottom: 22px; }
.vm-card h3 { color: var(--navy); font-size: 19px; margin-bottom: 8px; }
.vm-card p { color: #3D5063; }
.timeline { margin-top: 40px; }
.timeline h3 { color: var(--navy); margin-bottom: 20px; font-size: 20px; }
.tl-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tl-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: 0 4px 14px rgba(15,43,70,.05); }
.tl-item b { color: var(--green-dark); display: block; margin-bottom: 6px; font-size: 15px; }
.tl-item p { font-size: 14px; color: var(--gray); }

/* ---------- technology ---------- */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.tech-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 6px 20px rgba(15,43,70,.06); transition: .3s; display: flex; flex-direction: column;
}
.tech-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.tech-card .ph { height: 190px; background-size: cover; background-position: center; }
.tech-card .bd { padding: 22px 22px 26px; flex: 1; }
.tech-card h3 { color: var(--navy); font-size: 19px; margin-bottom: 10px; }
.tech-card p { color: var(--gray); font-size: 14.5px; }
.tech-card ul { margin: 10px 0 0 18px; color: var(--gray); font-size: 14px; }
.tech-card ul li { margin: 4px 0; }

/* principle strip */
.principle { margin-top: 60px; background: var(--navy); border-radius: var(--radius); color: #fff; padding: 46px 44px; }
.principle h3 { font-size: 22px; margin-bottom: 22px; color: #7BE09A; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { position: relative; padding-left: 44px; }
.step .num {
  position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%;
  background: var(--green); display: flex; align-items: center; justify-content: center; font-weight: 800;
}
.step h4 { font-size: 15.5px; margin-bottom: 6px; }
.step p { font-size: 13.5px; color: #B9CBDA; }

/* ---------- comparison table ---------- */
.compare { overflow-x: auto; }
table.cmp { width: 100%; border-collapse: collapse; min-width: 640px; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: 0 6px 20px rgba(15,43,70,.07); }
table.cmp th, table.cmp td { padding: 13px 18px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--line); }
table.cmp thead th { background: var(--navy); color: #fff; }
table.cmp tr.hl td { background: var(--green-light); font-weight: 700; color: var(--green-dark); }
table.cmp td.no { color: #C0392B; font-weight: 700; text-align: center; }
table.cmp td.yes { color: var(--green-dark); font-weight: 700; text-align: center; }

/* ---------- product ---------- */
.product-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
.product-grid .imgs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.product-grid .imgs img { border-radius: 10px; box-shadow: 0 6px 18px rgba(15,43,70,.10); object-fit: cover; height: 100%; }
table.spec { width: 100%; border-collapse: collapse; font-size: 14px; }
table.spec th, table.spec td { padding: 10px 14px; border-bottom: 1px solid var(--line); text-align: left; }
table.spec th { width: 46%; color: var(--navy); background: var(--green-light); }
.badge { display: inline-block; background: var(--green); color: #fff; font-size: 12.5px; font-weight: 700; padding: 4px 14px; border-radius: 14px; letter-spacing: 1px; margin-bottom: 14px; }

/* ---------- applications ---------- */
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.app-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: .3s; }
.app-card:hover { border-color: var(--green); box-shadow: var(--shadow); transform: translateY(-4px); }
.app-card .ic { width: 52px; height: 52px; border-radius: 12px; background: var(--green-light); color: var(--green-dark); display: flex; align-items: center; justify-content: center; font-size: 26px; margin-bottom: 16px; }
.app-card h3 { font-size: 17.5px; color: var(--navy); margin-bottom: 8px; }
.app-card p { font-size: 14px; color: var(--gray); }

/* ---------- cases ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.case-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); display: flex; flex-direction: column; transition: .3s; }
.case-card:hover { box-shadow: var(--shadow); transform: translateY(-5px); }
.case-card .ph { height: 235px; background-size: cover; background-position: center; }
.case-card .bd { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.case-card .loc { font-size: 12.5px; font-weight: 700; color: var(--green-dark); letter-spacing: 1.4px; text-transform: uppercase; margin-bottom: 6px; }
.case-card h3 { color: var(--navy); font-size: 19px; margin-bottom: 10px; }
.case-card p { color: var(--gray); font-size: 14.5px; flex: 1; }
.case-card .facts { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; border-top: 1px dashed var(--line); padding-top: 14px; }
.case-card .facts b { display: block; color: var(--green-dark); font-size: 16px; }
.case-card .facts span { font-size: 12px; color: var(--gray); }
.case-grid > .case-card:last-child { grid-column: 1 / -1; flex-direction: row; align-items: stretch; }
.case-grid > .case-card:last-child .ph { width: 56%; height: auto; min-height: 480px; }
.case-grid > .case-card:last-child .bd { padding: 48px 52px 50px; display: flex; flex-direction: column; justify-content: center; }
.case-grid > .case-card:last-child h3 { font-size: 31px; line-height: 1.25; margin-bottom: 6px; }
.case-grid > .case-card:last-child .loc { font-size: 13px; letter-spacing: 1.6px; }
.case-grid > .case-card:last-child p { font-size: 18px; line-height: 1.75; margin-top: 14px; }
.case-grid > .case-card:last-child .facts { margin-top: 28px; }
.case-grid > .case-card:last-child .facts b { font-size: 25px; }
.case-grid > .case-card:last-child .facts span { font-size: 13.5px; }

/* ---------- global ---------- */
.global-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.g-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; text-align: center; }
.g-card .flag { font-size: 30px; }
.g-card h3 { color: var(--navy); font-size: 16.5px; margin: 8px 0 6px; }
.g-card p { font-size: 13.5px; color: var(--gray); }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.c-info { background: var(--navy); color: #fff; border-radius: var(--radius); padding: 40px 38px; }
.c-info h3 { font-size: 22px; margin-bottom: 24px; }
.c-line { display: flex; gap: 16px; margin-bottom: 22px; align-items: flex-start; }
.c-line .ic { width: 42px; height: 42px; border-radius: 10px; background: rgba(123,224,154,.16); color: #7BE09A; display: flex; align-items: center; justify-content: center; font-size: 19px; flex: none; }
.c-line b { display: block; font-size: 14px; color: #9FB8CC; margin-bottom: 3px; font-weight: 600; }
.c-line p { font-size: 15.5px; }
.c-line a { color: #7BE09A; }
form.cform { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 40px 38px; box-shadow: 0 6px 20px rgba(15,43,70,.06); }
form.cform h3 { color: var(--navy); font-size: 20px; margin-bottom: 20px; }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
form.cform input, form.cform textarea, form.cform select {
  width: 100%; padding: 12px 14px; border: 1px solid #CBD8CE; border-radius: 8px; font: inherit; margin-bottom: 16px; background: #FBFDFB;
}
form.cform input:focus, form.cform textarea:focus, form.cform select:focus { outline: 2px solid var(--green); border-color: transparent; }
form.cform button { width: 100%; padding: 14px; background: var(--green); color: #fff; border: 0; border-radius: 26px; font-size: 16px; font-weight: 700; cursor: pointer; transition: .25s; }
form.cform button:hover { background: var(--green-dark); }
.f-note { font-size: 12.5px; color: var(--gray); margin-top: 12px; text-align: center; }

/* ---------- footer ---------- */
footer.site { background: #0A1F33; color: #8FA6B8; padding: 56px 0 28px; }
.f-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,.08); }
.f-grid h4 { color: #fff; font-size: 15.5px; margin-bottom: 16px; }
.f-grid ul { list-style: none; }
.f-grid li { margin: 9px 0; font-size: 14px; }
.f-grid a:hover { color: #7BE09A; }
.f-brand img { background: #fff; border-radius: 8px; padding: 8px; width: 240px; margin-bottom: 14px; }
.f-bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 22px; font-size: 13px; }

/* reveal animation */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  .tech-grid, .app-grid { grid-template-columns: repeat(2, 1fr); }
  .global-grid, .tl-row, .steps { grid-template-columns: repeat(2, 1fr); }
  .stats .grid { grid-template-columns: repeat(2, 1fr); }
  .f-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .about-grid, .product-grid, .contact-grid, .case-grid { grid-template-columns: 1fr; }
  .case-grid > .case-card:last-child { flex-direction: column; }
  .case-grid > .case-card:last-child .ph { width: 100%; height: 280px; min-height: 0; }
  .case-grid > .case-card:last-child .bd { padding: 26px 26px 30px; }
  .case-grid > .case-card:last-child h3 { font-size: 22px; }
  .case-grid > .case-card:last-child p { font-size: 15px; }
  .tech-grid, .app-grid { grid-template-columns: 1fr; }
  .global-grid, .tl-row, .steps { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .f-grid { grid-template-columns: 1fr; }
}
/* below 620px only: hamburger drawer with vertical menu */
@media (max-width: 620px) {
  .nav-wrap { flex-direction: row; height: 64px; padding: 0; }
  .brand img { height: 42px; }
  nav.main { width: auto; position: fixed; top: 98px; left: 0; right: 0; background: #fff; box-shadow: 0 14px 24px rgba(0,0,0,.12); display: none; }
  nav.main.open { display: block; }
  nav.main ul { flex-direction: column; padding: 14px; gap: 2px; }
  nav.main > ul > li > a { padding: 12px 14px; font-size: 15px; }
  nav.main a.nav-cta { padding: 12px 20px !important; }
  nav.main li.has-sub > a .caret { float: right; margin-top: 5px; }
  nav.main .sub {
    position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none;
    border-top: 0; padding: 0 0 6px 16px; min-width: 0; max-width: none; display: none;
  }
  nav.main li.has-sub.open > .sub { display: block; }
  nav.main .sub li a { white-space: normal; }
  .burger { display: flex; }
}

/* ---------- 2026-10 restructure: tech details / product cats / about gallery ---------- */
/* single tech card spans full width, text enlarged */
.tech-grid > .tech-card:only-child { grid-column: 1 / -1; }
.tech-grid > .tech-card:only-child .ph { height: auto; aspect-ratio: 16 / 9; background-size: cover; background-position: center; }
.tech-grid > .tech-card:only-child .bd { padding: 28px 30px 32px; }
.tech-grid > .tech-card:only-child h3 { font-size: 24px; }
.tech-grid > .tech-card:only-child p { font-size: 16.5px; }
.tech-grid > .tech-card:only-child ul { font-size: 15.5px; margin: 12px 0 0 18px; }

/* tech detail blocks (PPT p10 / p11 content), enlarged text boxes */
.tech-detail {
  display: grid; grid-template-columns: 1fr 1.05fr; gap: 40px; align-items: center;
  margin-top: 46px; padding: 38px 40px; background: var(--white);
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.tech-detail .td-bd h3 { color: var(--navy); font-size: 26px; margin-bottom: 14px; }
.tech-detail .td-lead { font-size: 17.5px; color: var(--ink); }
.tech-detail .td-bd ul { margin: 14px 0 0; list-style: none; }
.tech-detail .td-bd li {
  font-size: 17px; color: var(--ink); padding: 7px 0 7px 28px; position: relative;
}
.tech-detail .td-bd li::before { content: "✦"; color: var(--green); position: absolute; left: 0; }
.tech-detail .td-imgs { display: grid; gap: 18px; }
.tech-detail .td-imgs img {
  width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); background: #fff;
}

/* product categories */
.prod-cat {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center;
  margin-top: 46px; scroll-margin-top: 120px;
}
.prod-cat:nth-of-type(even) .pc-img { order: 2; }
.prod-cat .pc-img img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }
.prod-cat .pc-bd h3 { color: var(--navy); font-size: 26px; margin-bottom: 12px; }
.prod-cat .pc-bd > p { font-size: 16.5px; color: var(--ink); }
.prod-cat .pc-bd ul { margin: 14px 0 0; list-style: none; }
.prod-cat .pc-bd li { font-size: 16.5px; padding: 7px 0 7px 28px; position: relative; }
.prod-cat .pc-bd li::before { content: "✔"; color: var(--green); position: absolute; left: 0; }

.prod-extra { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 52px; }
.prod-extra figure { margin: 0; }
.prod-extra img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }
.prod-extra figcaption {
  text-align: center; color: var(--gray); font-size: 14px; margin-top: 10px;
}

/* about 3-image gallery (full width below the vm grid) */
.about-imgs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 46px; }
.about-imgs img {
  width: 100%; aspect-ratio: 16 / 9; height: auto; object-fit: cover; object-position: center;
  border-radius: var(--radius); box-shadow: var(--shadow);
}

@media (max-width: 900px) {
  .tech-detail { grid-template-columns: 1fr; padding: 26px 22px; }
  .prod-cat { grid-template-columns: 1fr; gap: 22px; }
  .prod-cat:nth-of-type(even) .pc-img { order: 0; }
  .prod-extra { grid-template-columns: 1fr; }
  .about-imgs { grid-template-columns: 1fr; }
  .about-imgs img { height: auto; }
}

/* ---------- 2026-10: GR LEW-CUI cooling water treatment section ---------- */
#cooling { scroll-margin-top: 120px; }
.cool-hero {
  display: grid; grid-template-columns: 1.05fr 1fr; overflow: hidden;
  border-radius: var(--radius); box-shadow: var(--shadow); margin-top: 56px;
  background: linear-gradient(135deg, #0F2B46 0%, #14456B 100%); color: #fff;
}
.cool-hero .ch-bd { padding: 52px 48px; display: flex; flex-direction: column; justify-content: center; }
.cool-hero .kicker2 { color: #7BE09A; letter-spacing: 2.5px; text-transform: uppercase; font-size: 13px; font-weight: 700; }
.cool-hero h3 { font-size: clamp(24px, 2.8vw, 33px); line-height: 1.25; margin: 12px 0 16px; }
.cool-hero p { color: #B9CBDA; font-size: 16px; }
.cool-hero .ch-img { position: relative; min-height: 320px; background-size: cover; background-position: center; }
.cool-hero .ch-img::after {
  content: attr(data-cap); position: absolute; left: 0; right: 0; bottom: 0;
  padding: 26px 22px 14px; font-size: 12.5px; color: #D9E6F2;
  background: linear-gradient(transparent, rgba(10,31,51,.88));
}
.cool-sec { margin-top: 72px; }
.cool-sec > h3 { text-align: center; color: var(--navy); font-size: clamp(22px, 2.6vw, 30px); }
.cool-sec > h3::after {
  content: ""; display: block; width: 56px; height: 4px; border-radius: 2px;
  background: var(--green); margin: 14px auto 0;
}
.cool-sec > .sub { text-align: center; color: var(--gray); max-width: 760px; margin: 14px auto 0; font-size: 16px; }
.cool-why { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 30px; }
.cool-why .cw { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; transition: .3s; }
.cool-why .cw:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--green); }
.cool-why .cw .ic {
  width: 50px; height: 50px; border-radius: 12px; background: var(--green-light);
  display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 16px;
}
.cool-why .cw h4 { color: var(--navy); font-size: 17px; margin-bottom: 8px; }
.cool-why .cw p { font-size: 14px; color: var(--gray); }
.cool-figs { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 26px; }
.cool-figs figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: 0 4px 14px rgba(15,43,70,.05); }
.cool-figs img { width: 100%; border-radius: 8px; }
.cool-figs figcaption { text-align: center; font-size: 13.5px; color: var(--gray); margin-top: 12px; }
.cool-split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-top: 56px; }
.cool-split.only { grid-template-columns: 1fr; max-width: 100%; }
.cool-split.only h3 { font-size: clamp(26px, 3vw, 34px); }
.cool-split.only .cs-lead { font-size: 18.5px; }
.cool-split.only li { font-size: 17.5px; padding: 10px 0 10px 28px; }
.cool-split .cs-img img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }
.cool-split h3 { color: var(--navy); font-size: clamp(21px, 2.4vw, 27px); margin-bottom: 12px; }
.cool-split .cs-lead { font-size: 16.5px; color: var(--ink); }
.cool-split ul { margin: 16px 0 0; list-style: none; }
.cool-split li { position: relative; padding: 8px 0 8px 28px; font-size: 16px; color: var(--ink); }
.cool-split li::before { content: "✦"; color: var(--green); position: absolute; left: 0; }
.cool-comps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 30px; }
.cool-comps .cc { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: .3s; }
.cool-comps .cc:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--green); }
.cool-comps .cc .ph { height: 150px; background-size: cover; background-position: center; }
.cool-comps .cc b { display: block; padding: 12px 12px; font-size: 13.5px; color: var(--navy); text-align: center; }
.cool-sci { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 30px; }
.cool-sci .sc { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: .3s; }
.cool-sci .sc:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.cool-sci .sc .ph { height: 190px; background-size: cover; background-position: center; }
.cool-sci .sc .bd { padding: 20px 22px 24px; flex: 1; }
.cool-sci .sc h4 { color: var(--navy); font-size: 17px; margin-bottom: 8px; }
.cool-sci .sc p { font-size: 14px; color: var(--gray); }
.cool-install { position: relative; margin: 56px 0 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.cool-install img { width: 100%; display: block; }
.cool-install figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 24px 16px;
  color: #fff; font-size: 13.5px; background: linear-gradient(transparent, rgba(10,31,51,.88));
}
.cool-targets { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 30px; }
.cool-targets .tg { background: var(--navy); border-radius: var(--radius); color: #fff; padding: 26px 20px; text-align: center; box-shadow: 0 6px 20px rgba(15,43,70,.12); }
.cool-targets .tg b { display: block; font-size: 23px; color: #7BE09A; margin-bottom: 5px; }
.cool-targets .tg span { font-size: 12.5px; color: #B9CBDA; }
@media (max-width: 1020px) {
  .cool-why, .cool-sci { grid-template-columns: 1fr 1fr; }
  .cool-comps { grid-template-columns: repeat(3, 1fr); }
  .cool-targets { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .cool-hero { grid-template-columns: 1fr; }
  .cool-hero .ch-img { min-height: 240px; }
  .cool-split { grid-template-columns: 1fr; gap: 24px; }
  .cool-figs { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .cool-why, .cool-sci { grid-template-columns: 1fr; }
  .cool-comps { grid-template-columns: 1fr 1fr; }
  .cool-hero .ch-bd { padding: 34px 26px; }
}