/* =================================================================
   THE WAVE TALK — Corporate Website
   수질·미생물 측정 기술 기업
   ================================================================= */
:root{
  --primary:#0B3C5D;
  --primary-700:#082c44;
  --secondary:#1E88E5;
  --accent:#37C5D4;

  --ink:#0e1c28;
  --ink-2:#33454f;
  --muted:#5d6f7c;
  --muted-2:#8a99a4;
  --line:#e6edf2;
  --line-2:#d6e1ea;
  --bg:#ffffff;
  --bg-soft:#f5f8fb;
  --bg-soft2:#eef4f9;

  --r-sm:12px;
  --r:18px;
  --r-lg:24px;
  --r-pill:999px;

  --sh-sm:0 1px 3px rgba(11,60,93,.05),0 6px 18px rgba(11,60,93,.05);
  --sh:0 10px 30px rgba(11,60,93,.08);
  --sh-lg:0 24px 56px rgba(11,60,93,.12);
  --sh-hover:0 18px 42px rgba(11,60,93,.13);

  --maxw:1180px;
  --gutter:24px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --grad:linear-gradient(120deg,var(--secondary),var(--accent));
  --grad-deep:linear-gradient(135deg,#0a3550,#0e5a86 55%,#1E88E5);
  --grad-soft:linear-gradient(135deg,#f7fbfe,#eaf3fb);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:88px}
body{
  margin:0;
  font-family:"Pretendard Variable",Pretendard,-apple-system,system-ui,"Segoe UI",Roboto,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;letter-spacing:-.012em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
b{font-weight:700}
::selection{background:rgba(30,136,229,.18);color:var(--primary)}
:focus-visible{outline:3px solid rgba(30,136,229,.5);outline-offset:3px}
.hero :focus-visible{outline-color:rgba(255,255,255,.7)}
.count,.perf-metric strong,.mini-stats strong,.hero-chips strong,
.metric strong,.dc-value{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:54px;padding:0 30px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:16px;font-weight:700;cursor:pointer;letter-spacing:-.01em;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s,color .22s}
.btn-arrow{transition:transform .22s var(--ease);font-weight:700}
.btn:hover .btn-arrow{transform:translateX(4px)}
.btn-primary{background:linear-gradient(135deg,#2a93ec,#1675cc);color:#fff;box-shadow:0 10px 22px rgba(30,136,229,.28)}
.btn-primary:hover{background:linear-gradient(135deg,#1f86e0,#1568bd);transform:translateY(-2px);box-shadow:0 14px 28px rgba(30,136,229,.36)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.7);transform:translateY(-2px)}
.btn-block{width:100%}

/* ---------- Section scaffolding ---------- */
.section{padding:120px 0;position:relative}
.section-head{max-width:720px;margin:0 0 56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-eyebrow{display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--secondary);
  margin-bottom:20px;text-transform:uppercase}
.section-eyebrow.light{color:var(--accent)}
.sec-no{font-size:11.5px;font-weight:800;color:var(--secondary);
  padding:4px 10px;background:var(--bg-soft2);border-radius:var(--r-pill);letter-spacing:.04em}
.section-eyebrow.light .sec-no{color:#bfeef5;background:rgba(255,255,255,.12)}
.section-title{font-size:clamp(28px,3.8vw,44px);line-height:1.2;font-weight:800;color:var(--primary);letter-spacing:-.03em}
.section-desc{margin-top:20px;font-size:clamp(15.5px,1.6vw,18px);color:var(--muted);line-height:1.75;max-width:620px}
.section-head.center .section-desc{margin-left:auto;margin-right:auto}

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

/* ---------- Live dot ---------- */
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;
  box-shadow:0 0 0 0 rgba(55,197,212,.6);animation:pulse 2s var(--ease) infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(55,197,212,.55)}70%{box-shadow:0 0 0 8px rgba(55,197,212,0)}100%{box-shadow:0 0 0 0 rgba(55,197,212,0)}}

/* =================================================================
   IMAGE PLACEHOLDER (photo-ready frame)
   ================================================================= */
.ph{position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;
  background:radial-gradient(130% 130% at 0% 0%,#eef4fa,#dde9f4 72%);
  border:1px solid var(--line-2);border-radius:var(--r-lg)}
.ph::before{content:"";position:absolute;inset:0;opacity:.45;
  background-image:radial-gradient(var(--line-2) 1px,transparent 1px);background-size:18px 18px}
.ph::after{content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,transparent 40%,rgba(255,255,255,.35) 50%,transparent 60%)}
.ph-inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:24px}
.ph-ico{width:60px;height:60px;border-radius:16px;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--secondary);box-shadow:var(--sh-sm)}
.ph-ico svg{width:30px;height:30px}
.ph-label{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.01em}
.ph-4x3{aspect-ratio:4/3}
.ph-portrait{aspect-ratio:4/4.7}
.ph-feature{aspect-ratio:4/3}
.ph-product{aspect-ratio:16/10}

/* =================================================================
   HEADER
   ================================================================= */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s,box-shadow .3s,border-color .3s;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(255,255,255,.86);backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-sm);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#fff;transition:color .3s}
.site-header.scrolled .brand{color:var(--primary)}
.brand-mark{display:inline-flex;color:var(--accent)}
.brand-text{font-size:18px;letter-spacing:.02em}
/* real logo image — white version over dark hero, color version on scrolled white header */
.brand-logo{height:44px;width:auto;display:block}
.brand-logo--on-light{display:none}
.site-header.scrolled .brand-logo--on-dark{display:none}
.site-header.scrolled .brand-logo--on-light{display:block}
.footer-brand-logo{height:48px;width:auto;display:block}
.nav{display:flex;align-items:center;gap:2px}
.nav-link{padding:10px 15px;font-size:15px;font-weight:600;color:rgba(255,255,255,.85);
  border-radius:8px;transition:color .2s,background .2s;position:relative}
.nav-link:hover{color:#fff}
.site-header.scrolled .nav-link{color:var(--muted)}
.site-header.scrolled .nav-link:hover{color:var(--primary)}
.nav-link.active{color:#fff}
.site-header.scrolled .nav-link.active{color:var(--secondary)}
.site-header.scrolled .nav-link.active::after{content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;border-radius:2px;background:var(--secondary)}
.nav-cta{margin-left:12px;padding:11px 22px;border-radius:var(--r-pill);background:var(--secondary);color:#fff;
  font-size:15px;font-weight:700;transition:transform .2s,background .2s;box-shadow:0 8px 20px rgba(30,136,229,.32)}
.nav-cta:hover{background:#1675cc;transform:translateY(-1px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s,background .3s}
.site-header.scrolled .nav-toggle span{background:var(--primary)}

/* =================================================================
   01 HERO
   ================================================================= */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;
  background:var(--grad-deep);color:#fff;overflow:hidden;padding:120px 0 90px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-mesh{position:absolute;inset:0;
  background:
    radial-gradient(60% 55% at 80% 16%,rgba(55,197,212,.4),transparent 60%),
    radial-gradient(50% 50% at 10% 90%,rgba(30,136,229,.38),transparent 60%)}
.hero-grid{position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(circle at 50% 38%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 38%,#000,transparent 78%)}

.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;width:100%}
.hero-copy{max-width:600px}
/* centered single-column hero (headline + sub + buttons only) */
.hero-inner--center{display:flex;justify-content:center;text-align:center}
.hero-copy--center{max-width:none}
.hero-copy--center .eyebrow{margin-bottom:26px}
.hero-copy--center .hero-sub{margin-left:auto;margin-right:auto}
.hero-copy--center .hero-actions{justify-content:center}
/* main headline on a single line, scaled to fit the viewport */
.hero-title--oneline{white-space:nowrap;font-size:clamp(26px,5.6vw,62px)}
/* solid white headline (no gradient) with a soft shadow for readability over the video */
.hero-copy--center .hero-title,
.hero-copy--center .hero-title .grad{
  color:#fff;background:none;-webkit-background-clip:border-box;background-clip:border-box;
  -webkit-text-fill-color:#fff}
.hero-copy--center .hero-title{text-shadow:0 2px 14px rgba(3,14,26,.5),0 1px 3px rgba(3,14,26,.45)}
.hero-copy--center .hero-sub{text-shadow:0 1px 8px rgba(3,14,26,.4);color:rgba(255,255,255,.92)}
/* keep the sub description on exactly two lines (one sentence per line) */
.hero-copy--center .hero-sub--twoline{max-width:none;white-space:nowrap}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:800;
  letter-spacing:.16em;color:#cdeef4;margin-bottom:24px;padding:8px 15px;text-transform:uppercase;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-pill)}
.hero-title{font-size:clamp(38px,5.4vw,66px);line-height:1.08;font-weight:800;letter-spacing:-.035em}
.hero-title .grad{background:linear-gradient(100deg,#fff 8%,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:24px;font-size:clamp(16px,1.7vw,18.5px);color:rgba(255,255,255,.82);max-width:540px;line-height:1.74}
.hero-actions{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-chips{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:52px;max-width:580px}
.hero-chips li{position:relative;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-radius:var(--r-sm);padding:18px 15px 15px;overflow:hidden;
  transition:background .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease)}
.hero-chips li::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--grad);opacity:.85}
.hero-chips li:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.32);transform:translateY(-3px)}
.hero-chips strong{display:block;font-size:clamp(21px,2.5vw,28px);font-weight:800;color:#fff;line-height:1.05}
.hero-chips strong small{font-size:12px;font-weight:700;color:#a9eaf2;margin-left:3px}
.hero-chips span{display:block;margin-top:8px;font-size:12.5px;color:rgba(255,255,255,.72);font-weight:500}

/* hero visual : SaaS dashboard */
.hero-visual{position:relative;width:100%;max-width:520px;margin-left:auto}
.ph-hero{width:100%;aspect-ratio:4/4.7;border-radius:var(--r-lg);box-shadow:0 30px 70px rgba(0,0,0,.3)}
.hero-visual .media{width:100%;box-shadow:0 30px 70px rgba(0,0,0,.3)}
.data-card{position:absolute;left:-26px;bottom:42px;width:244px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-radius:18px;padding:18px;box-shadow:0 24px 50px rgba(0,0,0,.34);color:#fff}
.dc-head{display:flex;align-items:center;justify-content:space-between;font-size:11px;font-weight:700}
.dc-status{display:inline-flex;align-items:center;gap:6px;color:#cdeef4}
.dc-src{color:rgba(255,255,255,.62);letter-spacing:.04em}
.dc-value{font-size:36px;font-weight:800;color:#fff;line-height:1.1;margin-top:12px}
.dc-value small{font-size:15px;font-weight:700;color:rgba(255,255,255,.72);margin-left:2px}
.dc-label{font-size:12.5px;color:rgba(255,255,255,.74);margin-top:2px}
.dc-spark{width:100%;height:46px;margin-top:10px;display:block}
.dc-foot{display:flex;align-items:center;justify-content:space-between;margin-top:10px;font-size:12px;color:rgba(255,255,255,.78)}
.dc-foot b{color:#fff;font-weight:800}
.dc-ok{background:rgba(55,197,212,.22);border:1px solid rgba(55,197,212,.45);color:#d4faff;font-weight:700;padding:3px 11px;border-radius:var(--r-pill);font-size:11px}

/* AI data-flow graphic behind dashboard */
.dash-flow{position:absolute;z-index:0;inset:-10% -12% -10% -8%;pointer-events:none}
.dash-flow svg{width:100%;height:100%;display:block}

/* SaaS glass dashboard */
.hero-dash{position:relative;z-index:2;color:#fff;border-radius:24px;padding:26px 26px 22px;
  background:linear-gradient(150deg,rgba(14,46,74,.46),rgba(8,28,50,.56));
  border:1px solid rgba(255,255,255,.2);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:0 32px 64px rgba(5,28,52,.42)}
.hd-top{display:flex;align-items:center;justify-content:space-between}
.hd-title{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#fff}
.hd-src{font-size:11px;font-weight:700;letter-spacing:.05em;color:rgba(255,255,255,.6)}
.hd-main{display:flex;align-items:flex-end;justify-content:space-between;margin-top:18px}
.hd-value{font-size:clamp(40px,5vw,54px);font-weight:800;line-height:.95;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.hd-value small{font-size:18px;font-weight:700;color:rgba(255,255,255,.7);margin-left:5px}
.hd-status{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.82);padding-bottom:5px}
.hd-ok{background:rgba(55,197,212,.25);border:1px solid rgba(55,197,212,.5);color:#d7faff;
  font-weight:800;font-size:12px;padding:4px 11px;border-radius:var(--r-pill)}
.hd-chart{margin-top:18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:14px 14px 8px}
.hd-chart svg{display:block;width:100%;height:118px}
.hd-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}
.hd-kpis>div{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:12px 13px}
.hd-kpis span{display:block;font-size:11px;color:rgba(255,255,255,.62)}
.hd-kpis strong{display:block;margin-top:6px;font-size:15px;font-weight:800;color:#fff}
.hd-foot{display:flex;align-items:center;justify-content:space-between;margin-top:15px;font-size:11.5px;color:rgba(255,255,255,.6)}
.hd-tag{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:#cdeef4;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:5px 11px;border-radius:var(--r-pill)}

.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;
  width:26px;height:42px;border:2px solid rgba(255,255,255,.45);border-radius:14px;display:flex;justify-content:center;padding-top:8px}
.scroll-hint span{width:4px;height:8px;border-radius:2px;background:#fff;animation:scrollDot 1.6s var(--ease) infinite}
@keyframes scrollDot{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}80%{opacity:0;transform:translateY(10px)}}

/* =================================================================
   02 ABOUT  (asymmetric: image + text, then editorial strengths row)
   ================================================================= */
.about-top{display:grid;grid-template-columns:.86fr 1.14fr;gap:60px;align-items:center;margin-bottom:8px}
.about-text .section-title{margin-top:0}
.about-lead{margin-top:22px;font-size:17px;color:var(--muted);line-height:1.85}
.mini-stats{display:flex;margin-top:34px}
.mini-stats li{padding:0 30px}
.mini-stats li:first-child{padding-left:0}
.mini-stats li+li{border-left:1px solid var(--line)}
.mini-stats strong{display:block;font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--secondary);line-height:1;letter-spacing:-.02em}
.mini-stats strong em{font-size:18px;font-style:normal;font-weight:800}
.mini-stats span{display:block;margin-top:10px;font-size:13px;color:var(--muted-2)}

.strengths{display:grid;grid-template-columns:repeat(3,1fr);margin-top:64px;border-top:1px solid var(--line)}
.strengths li{display:flex;gap:18px;padding:36px 34px;border-right:1px solid var(--line)}
.strengths li:first-child{padding-left:0}
.strengths li:last-child{padding-right:0;border-right:0}
.st-no{font-size:14px;font-weight:800;color:var(--accent);letter-spacing:.04em;flex-shrink:0;padding-top:2px}
.st-body h3{font-size:19px;font-weight:800;color:var(--primary);margin-bottom:9px;letter-spacing:-.02em}
.st-body p{font-size:14.5px;color:var(--muted);line-height:1.7}

/* =================================================================
   03 PROBLEM  (sticky intro + editorial issue list)
   ================================================================= */
.problem{background:var(--bg-soft)}
.problem-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:60px;align-items:start}
.problem-intro{position:sticky;top:108px}
.problem-intro .section-desc{max-width:none}
.bridge-link{display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:15px;font-weight:700;color:var(--secondary)}
.bridge-link span{transition:transform .25s var(--ease)}
.bridge-link:hover span{transform:translateX(4px)}

.issue-list{border-top:1px solid var(--line-2)}
.issue{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:start;
  padding:30px 8px;border-bottom:1px solid var(--line-2);transition:padding .25s var(--ease)}
.issue:hover{padding-left:18px}
.issue-no{font-size:26px;font-weight:800;color:var(--line-2);line-height:1;transition:color .25s var(--ease)}
.issue:hover .issue-no{color:var(--secondary)}
.issue-body h3{font-size:20px;font-weight:800;color:var(--primary);margin-bottom:8px;letter-spacing:-.02em}
.issue-body p{font-size:15px;color:var(--muted);line-height:1.72}

/* =================================================================
   04 TECHNOLOGY  (featured + supporting pair)
   ================================================================= */
.technology{padding-bottom:0}
.tech-badge{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--secondary);
  background:var(--bg-soft2);padding:6px 12px;border-radius:var(--r-pill);text-transform:uppercase}

.tech-featured{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;margin-bottom:26px}
.tf-body h3{font-size:clamp(23px,2.6vw,30px);font-weight:800;color:var(--primary);margin:16px 0 14px;letter-spacing:-.025em}
.tf-body p{font-size:16px;color:var(--muted);line-height:1.78}
.tf-metrics{display:flex;gap:44px;margin-top:28px}
.metric strong{display:block;font-size:34px;font-weight:800;color:var(--primary);line-height:1;letter-spacing:-.03em}
.metric strong small{font-size:17px;font-weight:800;margin-left:1px}
.metric span{display:block;margin-top:9px;font-size:13px;color:var(--muted-2);font-weight:600}

.tech-pair{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.tech-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:36px 34px;box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.tech-card:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);border-color:transparent}
.tech-card h3{font-size:22px;font-weight:800;color:var(--primary);margin:16px 0 12px;letter-spacing:-.02em}
.tech-card p{font-size:15px;color:var(--muted);line-height:1.72}
.metric-line{display:flex;align-items:baseline;gap:12px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
.metric-line strong{font-size:30px}
.metric-line span{margin-top:0}

/* process band */
.process-band{margin-top:100px;background:var(--grad-deep);color:#fff;padding:76px 0}
.process-eyebrow{text-align:center;font-size:clamp(23px,2.6vw,31px);font-weight:800;letter-spacing:-.015em;color:#fff;margin-bottom:54px}
.process-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative}
.process-flow::before{content:"";position:absolute;top:80px;left:10%;right:10%;height:2px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent)}
.process-step{position:relative;text-align:center;padding:0 8px}
.ps-no{font-size:15px;font-weight:800;color:var(--accent);letter-spacing:.06em}
.ps-ico{width:86px;height:86px;margin:14px auto 20px;border-radius:22px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);color:#d4f3f9;
  display:flex;align-items:center;justify-content:center}
.ps-ico svg{width:44px;height:44px}
.process-step h4{font-size:19px;font-weight:800;margin-bottom:8px;color:#fff}
.process-step p{font-size:14.5px;color:rgba(255,255,255,.82);line-height:1.55}

/* =================================================================
   05 SOLUTIONS  (alternating rows with photo area)
   ================================================================= */
.solutions{background:var(--bg-soft)}
.solution-list{display:flex;flex-direction:column;gap:28px}
.solution-row{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.solution-row:hover{transform:translateY(-6px);box-shadow:var(--sh)}
.solution-row.reverse{grid-template-columns:1.08fr .92fr}
.solution-row .media,.solution-row .ph{border-radius:var(--r)}
.solution-row.reverse .media,.solution-row.reverse .ph{order:2}
/* real section photos set as cover background (graceful fallback to media bg if missing) */
.sol-photo{background-size:cover;background-repeat:no-repeat;background-position:center;
  filter:saturate(1.06) brightness(1.03) contrast(1.02)}
.sol-tag{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--secondary);margin-bottom:12px;text-transform:uppercase}
.solution-body h3{font-size:clamp(21px,2.3vw,27px);color:var(--primary);font-weight:800;margin-bottom:14px;letter-spacing:-.025em}
.solution-body>p{font-size:16px;color:var(--muted);margin-bottom:22px;line-height:1.76}
.solution-body b{color:var(--primary)}
.sol-points{display:flex;flex-direction:column;gap:11px}
.sol-points li,.pf-points li{position:relative;padding-left:28px;font-size:15px;color:var(--ink-2);font-weight:500}
.sol-points li::before,.pf-points li::before{content:"";position:absolute;left:0;top:7px;width:18px;height:18px;border-radius:50%;background:var(--grad)}
.sol-points li::after,.pf-points li::after{content:"";position:absolute;left:5.5px;top:11px;width:6px;height:3px;
  border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}

/* =================================================================
   06 PRODUCTS  (featured + supporting pair)
   ================================================================= */
.product-featured{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;margin-bottom:26px}
.pf-body h3{font-size:clamp(24px,2.7vw,32px);font-weight:800;color:var(--primary);margin:16px 0 14px;letter-spacing:-.025em}
.pf-body>p{font-size:16px;color:var(--muted);line-height:1.78;margin-bottom:22px}
.pf-points{display:flex;flex-direction:column;gap:11px}
.product-kind{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--accent);
  background:rgba(55,197,212,.12);padding:6px 12px;border-radius:var(--r-pill);text-transform:uppercase}

.product-pair{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);border-color:transparent}
.product-card .ph,.product-card .media{border:0;border-bottom:1px solid var(--line);border-radius:0}
.product-body{padding:26px 28px 30px}
.product-body h3{font-size:22px;font-weight:800;color:var(--primary);margin:14px 0 10px;letter-spacing:-.02em}
.product-body p{font-size:15px;color:var(--muted);line-height:1.7}
.product-note{margin-top:28px;font-size:13px;color:var(--muted-2)}

/* =================================================================
   07 APPLICATIONS  (icon grid)
   ================================================================= */
.applications{background:var(--bg-soft)}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.app-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:32px 30px;
  box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.app-card:hover{transform:translateY(-6px);box-shadow:var(--sh);border-color:var(--accent)}
.app-icon{width:56px;height:56px;border-radius:16px;background:var(--grad-soft);color:var(--secondary);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;transition:background .25s,color .25s,border-color .25s}
.app-card:hover .app-icon{background:var(--grad);color:#fff;border-color:transparent}
.app-icon svg{width:28px;height:28px}
.app-card h3{font-size:20px;color:var(--primary);font-weight:800;margin-bottom:8px;letter-spacing:-.02em}
.app-card p{font-size:15px;color:var(--muted);line-height:1.65}

/* =================================================================
   08 PERFORMANCE
   ================================================================= */
.perf-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:64px;
  background:var(--grad-deep);border-radius:var(--r-lg);padding:50px 36px;color:#fff;box-shadow:var(--sh-lg)}
.perf-metric{text-align:center;padding:0 16px}
.perf-metric strong{display:flex;align-items:baseline;justify-content:center;gap:3px;
  white-space:nowrap;font-size:clamp(40px,4.8vw,58px);font-weight:800;line-height:1;color:#fff;letter-spacing:-.03em}
.perf-metric strong .count{font-size:1em}
.perf-metric strong em{font-size:.44em;font-style:normal;font-weight:800;color:var(--accent);letter-spacing:0}
.perf-metric strong .pre{font-size:.62em;color:rgba(255,255,255,.9)}
.perf-metric span{display:block;margin-top:16px;font-size:14.5px;font-weight:600;color:rgba(255,255,255,.9)}
.perf-metric+.perf-metric{border-left:1px solid rgba(255,255,255,.16)}

.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.trust-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px 32px;box-shadow:var(--sh-sm);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.trust-card:hover{transform:translateY(-6px);box-shadow:var(--sh)}
.trust-icon{width:56px;height:56px;border-radius:16px;background:var(--grad-soft);color:var(--secondary);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px}
.trust-icon svg{width:28px;height:28px}
.trust-card h3{font-size:20px;color:var(--primary);font-weight:800;margin-bottom:18px;padding-bottom:16px;border-bottom:2px solid var(--line);letter-spacing:-.02em}
.trust-card ul{display:flex;flex-direction:column;gap:13px}
.trust-card li{position:relative;padding-left:24px;font-size:15px;color:var(--muted)}
.trust-card li::before{content:"";position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;background:var(--grad-soft)}
.trust-card li::after{content:"";position:absolute;left:4px;top:10px;width:6px;height:3px;
  border-left:2px solid var(--secondary);border-bottom:2px solid var(--secondary);transform:rotate(-45deg)}

.partners{margin-top:66px;text-align:center}
.partners-label{font-size:12.5px;font-weight:800;letter-spacing:.16em;color:var(--muted-2);margin-bottom:26px}
.partner-logos{display:flex;flex-wrap:wrap;justify-content:center;gap:16px}
.partner-logos span{display:flex;align-items:center;justify-content:center;height:66px;min-width:168px;padding:0 28px;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;color:var(--muted-2);
  font-weight:700;font-size:14px;letter-spacing:.02em}
.partners-note{margin-top:20px;font-size:12.5px;color:var(--muted-2)}

/* =================================================================
   09 CONTACT
   ================================================================= */
.contact{background:var(--primary);color:#fff;overflow:hidden}
.contact::before{content:"";position:absolute;inset:0;
  background:radial-gradient(50% 60% at 85% 10%,rgba(55,197,212,.25),transparent 60%),
            radial-gradient(45% 55% at 5% 95%,rgba(30,136,229,.3),transparent 60%);pointer-events:none}
.contact-wrap{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.contact .section-title{color:#fff}
.contact-desc{margin-top:20px;color:rgba(255,255,255,.78);font-size:16px;max-width:440px;line-height:1.74}
.contact-info{margin-top:40px;display:grid;gap:0}
.contact-info li{display:grid;grid-template-columns:96px 1fr;align-items:baseline;gap:14px;
  padding:16px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.ci-label{font-size:12.5px;font-weight:800;letter-spacing:.06em;color:var(--accent)}
.ci-value{font-size:15px;color:rgba(255,255,255,.92);line-height:1.6}
.ci-value a:hover{color:var(--accent)}

.contact-form{position:relative;background:#fff;border-radius:var(--r-lg);padding:38px;color:var(--ink);
  display:grid;grid-template-columns:1fr 1fr;gap:18px;box-shadow:var(--sh-lg)}
.cf-title{grid-column:1/-1;font-size:18px;font-weight:800;color:var(--primary);margin-bottom:2px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1/-1}
.field label{font-size:14px;font-weight:700;color:var(--primary)}
.field label span{color:#e23b3b}
.field input,.field select,.field textarea{font-family:inherit;font-size:15px;padding:13px 14px;
  border:1px solid var(--line);border-radius:10px;background:var(--bg-soft);color:var(--ink);
  transition:border-color .2s,box-shadow .2s,background .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--secondary);
  background:#fff;box-shadow:0 0 0 3px rgba(30,136,229,.14)}
.field textarea{resize:vertical;min-height:96px}
.contact-form .btn{grid-column:1/-1;margin-top:4px}
.form-note{grid-column:1/-1;text-align:center;font-size:14px;font-weight:600;min-height:20px;margin:0}
.form-note.ok{color:#1a8a4a}
.form-note.err{color:#e23b3b}

/* =================================================================
   FOOTER
   ================================================================= */
.site-footer{background:var(--primary-700);color:rgba(255,255,255,.68);padding:60px 0 40px}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr;gap:32px 48px;align-items:start}
.footer-logo{display:inline-flex;align-items:center;gap:9px;color:#fff}
.footer-logo .brand-mark{color:var(--accent)}
.footer-brand .brand-text{color:#fff;font-size:18px;font-weight:800;letter-spacing:.02em}
.footer-brand p{margin-top:12px;font-size:14px;max-width:380px;line-height:1.7}
.footer-contact{font-size:13px;color:rgba(255,255,255,.55)}
.footer-contact a{transition:color .2s}
.footer-contact a:hover{color:var(--accent)}
.footer-sep{margin:0 8px;opacity:.5}
.footer-nav{display:flex;gap:20px;flex-wrap:wrap;justify-content:flex-end;padding-top:6px}
.footer-nav a{font-size:14px;font-weight:600;transition:color .2s}
.footer-nav a:hover{color:var(--accent)}
.footer-copy{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.12);margin-top:8px;padding-top:24px;font-size:13px}

/* =================================================================
   RESPONSIVE
   ================================================================= */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:52px}
  .hero-visual{margin-left:0;max-width:520px}
}
@media (max-width:980px){
  .section{padding:88px 0}
  .about-top{grid-template-columns:1fr;gap:36px}
  .about-ph{aspect-ratio:16/10}
  .strengths{grid-template-columns:1fr;margin-top:40px}
  .strengths li{padding:26px 0;border-right:0;border-bottom:1px solid var(--line)}
  .strengths li:last-child{border-bottom:0}
  .problem-layout{grid-template-columns:1fr;gap:36px}
  .problem-intro{position:static}
  .tech-featured{grid-template-columns:1fr;gap:32px}
  .ph-feature{aspect-ratio:16/9}
  .product-featured{grid-template-columns:1fr;gap:32px}
  .ph-product{aspect-ratio:16/9}
  .app-grid,.trust-grid{grid-template-columns:1fr 1fr}
  .perf-metrics{grid-template-columns:1fr 1fr;gap:32px 0;padding:44px 28px}
  .perf-metric:nth-child(odd){border-left:0}
  .process-flow{grid-template-columns:repeat(3,1fr);gap:28px 14px}
  .process-flow::before{display:none}
  .solution-row,.solution-row.reverse{grid-template-columns:1fr;gap:0}
  .solution-row.reverse .media,.solution-row.reverse .ph{order:0}
  .solution-row .media,.solution-row .ph{aspect-ratio:16/9;margin-bottom:26px}
  .contact-wrap{grid-template-columns:1fr;gap:40px}
}
@media (max-width:760px){
  .nav{position:fixed;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:12px var(--gutter) 24px;box-shadow:var(--sh);
    transform:translateY(-135%);transition:transform .35s var(--ease);border-top:1px solid var(--line)}
  .nav.open{transform:translateY(0)}
  .nav-link{color:var(--ink);padding:14px 8px;border-bottom:1px solid var(--line)}
  .site-header.scrolled .nav-link{color:var(--ink)}
  .nav.open .nav-link.active,.site-header .nav.open .nav-link.active{color:var(--secondary)}
  .site-header.scrolled .nav-link.active::after{display:none}
  .nav-cta{margin:14px 0 0;text-align:center}
  .nav-toggle{display:flex}
  .nav-toggle.open span{background:var(--primary)}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .brand-logo{height:38px}
  .footer-brand-logo{height:42px}

  .hero{min-height:auto;padding:128px 0 72px}
  .hero .hero-bg::after{background:linear-gradient(165deg,rgba(9,38,62,.78) 0%,rgba(12,56,86,.66) 100%)}
  .hero-title--oneline{white-space:normal}
  .hero-copy--center .hero-sub--twoline{white-space:normal}
  .hero-chips{grid-template-columns:1fr 1fr;gap:12px;margin-top:42px}
  .hero-visual{margin:0 auto;max-width:480px}
  .hd-value{font-size:42px}
  .hero-dash{padding:22px 20px 20px}
  .mini-stats{flex-wrap:wrap;gap:18px 0}
  .tech-pair,.product-pair,.app-grid,.trust-grid,.contact-form{grid-template-columns:1fr}
  .tf-metrics{gap:32px}
  .perf-metrics{grid-template-columns:1fr 1fr;padding:36px 20px}
  .process-flow{grid-template-columns:1fr 1fr}
  .contact-form{padding:28px}
  .contact-info li{grid-template-columns:1fr;gap:2px}
  .section-head{margin-bottom:42px}
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .footer-nav{justify-content:flex-start;padding-top:0}
  body[data-page] .page-hero{background-position:center,center}
  .na-related,.na-nav{grid-template-columns:1fr}
  .na-nav .na-next{text-align:left}
}
@media (max-width:420px){
  .process-flow{grid-template-columns:1fr}
  .perf-metric+.perf-metric{border-left:0}
  .mini-stats li{padding:0 20px 0 0}
  .mini-stats li+li{border-left:0}
}

/* =================================================================
   MULTI-PAGE COMPONENTS
   ================================================================= */
/* real image media */
.media{position:relative;overflow:hidden;border-radius:var(--r-lg);background:#e7edf2;border:1px solid var(--line-2)}
.media img{width:100%;height:100%;object-fit:contain;display:block}
.media.cover img{object-fit:cover}
.r-43{aspect-ratio:4/3}
.r-11{aspect-ratio:1/1}
.r-1610{aspect-ratio:16/10}
.r-169{aspect-ratio:16/9}
.r-portrait{aspect-ratio:4/4.5}

/* placeholder "이미지 교체 예정" badge */
.ph-note{position:absolute;top:12px;left:12px;z-index:2;font-size:11px;font-weight:700;
  background:rgba(255,255,255,.85);color:var(--muted);border:1px solid var(--line-2);
  padding:4px 11px;border-radius:var(--r-pill)}

/* sub-page hero/banner */
.page-hero{position:relative;color:#fff;padding:152px 0 66px;overflow:hidden;
  background-color:#0b3c5d;
  background-image:url('assets/images/hero-bg.jpg'),url('assets/images/hero-water.svg');
  background-size:cover,cover;background-position:center,center;background-repeat:no-repeat,no-repeat}
.page-hero .hero-grid{display:none}
.page-hero .hero-mesh{opacity:.3}
.page-hero .hero-bg::after{background:linear-gradient(100deg,rgba(12,58,94,.7) 0%,rgba(50,135,182,.4) 55%,rgba(120,195,225,.2) 100%)}
.page-hero .container{position:relative;z-index:1}

/* per-page banner background (관리자에서 페이지별로 교체 가능) */
body[data-page="company"] .page-hero{background-image:url('assets/images/banner-company.jpg'),url('assets/images/hero-water.svg')}
body[data-page="technology"] .page-hero{background-image:url('assets/images/banner-technology.jpg'),url('assets/images/hero-water.svg');background-position:right center,right center}
body[data-page="solution"] .page-hero{background-image:url('assets/images/banner-solution.jpg'),url('assets/images/hero-water.svg');background-position:center bottom,center bottom}
body[data-page="product"] .page-hero{background-image:url('assets/images/banner-product.jpg'),url('assets/images/hero-water.svg')}
body[data-page="application"] .page-hero{background-image:url('assets/images/banner-application.jpg'),url('assets/images/hero-water.svg');background-position:left center,left center}
body[data-page="news"] .page-hero{background-image:url('assets/images/banner-news.jpg'),url('assets/images/hero-water.svg');background-position:center top,center top}

/* reusable water backgrounds */
.water-bg,.page-visual{position:relative;z-index:0;background-color:#0b3c5d;
  background-image:url('assets/images/hero-bg.jpg'),url('assets/images/hero-water.svg');
  background-size:cover,cover;background-position:center,center;background-repeat:no-repeat,no-repeat}
.water-bg>.container,.page-visual>.container{position:relative;z-index:1}
.water-bg-light,.water-bg-soft,.water-bg-product{position:relative;z-index:0}
.water-bg-light>.container,.water-bg-soft>.container,.water-bg-product>.container{position:relative;z-index:1}
.water-bg-light::before,.water-bg-soft::before,.water-bg-product::before{content:"";position:absolute;inset:0;z-index:0;
  background:url('assets/images/hero-water.svg') center/cover no-repeat;pointer-events:none}
.water-bg-light::before{opacity:.14}
.water-bg-soft::before{opacity:.09;background-position:center bottom}
.water-bg-product::before{opacity:.05}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px}
.breadcrumb a{transition:color .2s}.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-style:normal;opacity:.5}
.page-hero .ph-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
  letter-spacing:.16em;color:#bfeef5;margin-bottom:16px;text-transform:uppercase}
.page-hero h1{font-size:clamp(30px,4.4vw,50px);font-weight:800;letter-spacing:-.03em;line-height:1.16}
.page-hero .ph-lead{margin-top:18px;font-size:clamp(15.5px,1.7vw,18px);color:rgba(255,255,255,.82);max-width:660px;line-height:1.72}

/* alternating section bg + more link */
.section.alt{background:var(--bg-soft)}
.more-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--secondary)}
.more-link span{transition:transform .25s var(--ease)}
.more-link:hover span{transform:translateX(4px)}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:56px;flex-wrap:wrap}
.head-row .section-head{margin-bottom:0}

/* summary grid (index) */
.sum-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sum-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 28px;
  box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.sum-card:hover{transform:translateY(-6px);box-shadow:var(--sh);border-color:transparent}
.sum-icon{width:54px;height:54px;border-radius:15px;background:var(--grad-soft);border:1px solid var(--line);
  color:var(--secondary);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.sum-icon svg{width:28px;height:28px}
.sum-card h3{font-size:19px;font-weight:800;color:var(--primary);margin-bottom:9px;letter-spacing:-.02em}
.sum-card p{font-size:14.5px;color:var(--muted);line-height:1.65;margin-bottom:14px}
.sum-card .more-link{font-size:14px}

/* CTA band */
.cta-band{position:relative;overflow:hidden;background:var(--grad-deep);color:#fff;border-radius:var(--r-lg);
  padding:54px 52px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;box-shadow:var(--sh-lg)}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.025em}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.8);font-size:15px;max-width:520px}

/* news */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-item{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.news-item:hover{transform:translateY(-6px);box-shadow:var(--sh-hover);border-color:transparent}
.news-item .media,.news-item .ph{border:0;border-bottom:1px solid var(--line);border-radius:0}
.news-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.news-cat{font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--accent);text-transform:uppercase}
.news-item h3{font-size:18px;font-weight:800;color:var(--primary);margin:12px 0 12px;line-height:1.45;letter-spacing:-.02em}
.news-item p{font-size:14.5px;color:var(--muted);line-height:1.65;margin-bottom:18px}
.news-date{margin-top:auto;font-size:13px;color:var(--muted-2);font-weight:600}

/* news : load more + detail article */
.r-2x1{aspect-ratio:2/1}
.news-more{text-align:center;margin-top:48px}
.news-empty{text-align:center;color:var(--muted);font-size:16px;padding:40px 0}
.news-empty a{color:var(--secondary);font-weight:700}
.btn-line{background:#fff;color:var(--primary);border-color:var(--line-2)}
.btn-line:hover{background:var(--bg-soft);border-color:var(--secondary);color:var(--secondary);transform:translateY(-2px)}

.news-article{max-width:840px;margin:0 auto}
.na-hero{margin-bottom:34px;box-shadow:var(--sh)}
.na-content{font-size:16.5px;line-height:1.9;color:var(--ink-2)}
.na-content p{margin-bottom:18px}
.na-content p:last-child{margin-bottom:0}
.na-content strong{color:var(--primary);font-weight:700}
.na-content h2{font-size:24px;font-weight:800;color:var(--primary);margin:32px 0 14px;letter-spacing:-.02em}
.na-content h3{font-size:20px;font-weight:800;color:var(--primary);margin:26px 0 12px}
.na-content img{border-radius:var(--r);margin:22px 0}
.na-related{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px}
.na-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:40px;padding-top:30px;border-top:1px solid var(--line)}
.na-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.na-nav a,.na-nav span{display:flex;flex-direction:column;gap:5px;padding:18px 22px;border:1px solid var(--line);
  border-radius:var(--r);font-size:15px;font-weight:700;color:var(--primary);background:#fff;
  transition:border-color .2s,box-shadow .2s,transform .2s var(--ease);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.na-nav a:hover{border-color:var(--secondary);box-shadow:var(--sh-sm);transform:translateY(-2px)}
.na-nav .na-next{text-align:right}
.na-nav span.na-off{color:var(--muted-2);font-weight:600;background:var(--bg-soft);cursor:default}
.na-nav a>span,.na-nav span>span{font-size:12px;font-weight:800;letter-spacing:.04em;color:var(--secondary)}
.na-nav .na-off>span{color:var(--muted-2)}

/* company history timeline */
.timeline{position:relative;margin-top:6px;padding-left:30px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:var(--line-2)}
.timeline-item{position:relative;padding-bottom:30px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{content:"";position:absolute;left:-30px;top:5px;width:12px;height:12px;border-radius:50%;
  background:var(--secondary);border:3px solid #fff;box-shadow:0 0 0 1px var(--line-2)}
.tl-year{font-size:15px;font-weight:800;color:var(--secondary);letter-spacing:.02em}
.tl-item p{margin-top:6px;font-size:15px;color:var(--muted);line-height:1.6}

/* two-column generic intro (company) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split.narrow{grid-template-columns:.86fr 1.14fr}

/* stacked alternating feature rows (technology) */
.feature-stack{display:flex;flex-direction:column;gap:76px}
.feature-stack .tf-metrics{margin-top:26px}

/* hero background photo/graphic layer */
/* To use the original attached JPG instead: drop it in assets/images/ and change the url below. */
.hero-photo{position:absolute;inset:0;opacity:1;
  background:url('assets/images/hero-bg.jpg') center center/cover no-repeat,
             url('assets/images/hero-water.svg') center center/cover no-repeat}
.hero-video{position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;z-index:0;pointer-events:none;
  opacity:0;transition:opacity .9s linear;
  transform:translateZ(0);will-change:opacity;backface-visibility:hidden}
.hero-video.is-active{opacity:1}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(95deg,rgba(7,32,50,.86) 0%,rgba(8,42,66,.5) 52%,rgba(11,60,93,.25) 100%)}
/* index hero : lighter overlay — keep the bright water visible, readable text on the left */
.hero .hero-bg::after{background:
  linear-gradient(100deg,rgba(10,46,74,.6) 0%,rgba(14,66,104,.3) 45%,rgba(26,104,150,.1) 100%)}
.hero .hero-grid{display:none}
.hero .hero-mesh{opacity:.22}

/* hero product glow + data ring (item 2) */
.hero-visual::before{content:"";position:absolute;z-index:0;left:50%;top:48%;transform:translate(-50%,-50%);
  width:118%;height:104%;border-radius:50%;
  background:radial-gradient(circle,rgba(55,197,212,.42),rgba(30,136,229,.16) 45%,transparent 68%);
  filter:blur(14px)}
.hero-visual .media,.hero-visual .data-card{position:relative;z-index:1}
.hero-visual .data-card{z-index:2}

/* about image tech labels (item 3) */
.about-media{position:relative}
.img-tag{position:absolute;z-index:2;display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border:1px solid var(--line);color:var(--primary);font-size:12.5px;font-weight:700;
  padding:8px 13px;border-radius:var(--r-pill);box-shadow:var(--sh)}
.img-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);flex-shrink:0}
.img-tag.t-tl{top:16px;left:16px}
.img-tag.t-br{bottom:16px;right:16px}
.img-tag.t-bl{bottom:16px;left:16px}

/* AI analysis dashboard mockup (item 4) */
.dash-stage{display:flex;align-items:center;justify-content:center;padding:26px;overflow:hidden;
  background:var(--grad-soft);border:1px solid var(--line-2);border-radius:var(--r-lg)}
.dash-mock{width:100%;max-width:380px;background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-lg);padding:20px 20px 18px}
.dash-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--primary)}
.dash-head .dash-live{margin-left:auto;font-size:10.5px;font-weight:800;letter-spacing:.06em;color:var(--secondary);
  background:rgba(30,136,229,.1);padding:3px 9px;border-radius:var(--r-pill)}
.dash-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0 14px}
.dash-kpis>div{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:11px 12px}
.dash-kpis strong{display:block;font-size:19px;font-weight:800;color:var(--primary);line-height:1;letter-spacing:-.02em}
.dash-kpis span{display:block;margin-top:6px;font-size:11px;color:var(--muted-2)}
.dash-chart{position:relative;background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:12px}
.dash-chart svg{display:block;width:100%;height:78px}
.dash-bars{display:flex;flex-direction:column;gap:9px;margin-top:14px}
.dash-bar{display:flex;align-items:center;gap:10px;font-size:11.5px;color:var(--muted)}
.dash-bar i{font-style:normal;width:64px;flex-shrink:0}
.dash-bar .track{flex:1;height:6px;border-radius:3px;background:var(--bg-soft2);overflow:hidden}
.dash-bar .fill{height:100%;border-radius:3px;background:var(--grad)}

/* product page : categories, features, badges */
.cat-block{margin-bottom:18px}
.cat-head{margin-bottom:34px}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-card{position:relative;display:flex;flex-direction:column}
.product-card .product-body{flex:1;display:flex;flex-direction:column}
.product-feat{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.product-feat span{font-size:11.5px;font-weight:600;color:var(--secondary);background:var(--bg-soft2);padding:5px 11px;border-radius:var(--r-pill)}
.product-cta{margin-top:18px;display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;color:var(--secondary)}
.product-cta span{transition:transform .25s var(--ease)}
.product-cta:hover span{transform:translateX(4px)}
.pf-body .product-feat{margin-top:20px}
.coming-badge{position:absolute;top:14px;right:14px;z-index:3;background:var(--primary);color:#fff;
  font-size:11px;font-weight:800;letter-spacing:.04em;padding:5px 12px;border-radius:var(--r-pill)}

/* product DETAIL blocks (image + spec) */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.product-detail.reverse .pd-media{order:2}
.pd-media{position:relative;aspect-ratio:4/3;background:#F3F7FA;border:1px solid var(--line-2);
  border-radius:var(--r-lg);overflow:hidden;display:flex;align-items:center;justify-content:center}
.pd-media img{width:100%;height:100%;object-fit:contain;display:block}
.pd-media.cover img{object-fit:cover}
.pd-cat{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
  letter-spacing:.14em;color:var(--secondary);text-transform:uppercase;margin-bottom:14px}
.pd-name{font-size:clamp(23px,3vw,32px);font-weight:800;color:var(--primary);letter-spacing:-.025em;line-height:1.18}
.pd-model{font-size:clamp(17px,2vw,21px);font-weight:700;color:var(--secondary);margin-top:7px}
.pd-coming{display:inline-block;margin-left:8px;font-size:11px;font-weight:800;color:#fff;
  background:var(--primary);padding:4px 11px;border-radius:var(--r-pill);vertical-align:middle;letter-spacing:.02em}
.pd-block{margin-top:24px}
.pd-block h4{font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--muted-2);
  text-transform:uppercase;margin-bottom:12px;display:flex;align-items:center;gap:9px}
.pd-block h4::before{content:"";width:16px;height:2px;background:var(--accent);border-radius:2px}
.pd-list{display:flex;flex-direction:column;gap:9px}
.pd-list li{position:relative;padding-left:24px;font-size:15px;color:var(--ink-2);line-height:1.55}
.pd-list li::before{content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;background:var(--grad-soft)}
.pd-list li::after{content:"";position:absolute;left:4px;top:11px;width:6px;height:3px;
  border-left:2px solid var(--secondary);border-bottom:2px solid var(--secondary);transform:rotate(-45deg)}
.pd-tags{display:flex;flex-wrap:wrap;gap:8px}
.pd-tags span{font-size:13px;font-weight:600;color:var(--secondary);background:var(--bg-soft2);padding:6px 13px;border-radius:var(--r-pill)}
.pd-specs{margin-top:6px;border-top:1px solid var(--line)}
.pd-specs>div{display:grid;grid-template-columns:130px 1fr;gap:14px;padding:11px 2px;border-bottom:1px solid var(--line)}
.pd-specs dt{margin:0;font-size:14px;color:var(--muted-2);font-weight:600}
.pd-specs dd{margin:0;font-size:14.5px;color:var(--ink);font-weight:700}
.pd-cta{margin-top:28px}

/* light contact page layout */
.contact-light .section-title{color:var(--primary)}
.contact-light .contact-desc{color:var(--muted)}
.contact-light .ci-label{color:var(--secondary)}
.contact-light .ci-value{color:var(--ink)}
.contact-light .ci-value a:hover{color:var(--secondary)}
.contact-light .contact-info li{border-bottom-color:var(--line)}
.contact-light .contact-form{border:1px solid var(--line)}

@media (max-width:980px){
  .sum-grid,.news-list,.cat-grid{grid-template-columns:1fr 1fr}
  .split,.split.narrow{grid-template-columns:1fr;gap:36px}
  .product-detail{grid-template-columns:1fr;gap:32px}
  .product-detail.reverse .pd-media{order:0}
  .feature-stack{gap:48px}
  .page-hero{padding:128px 0 56px}
  .cta-band{padding:40px 32px}
}
@media (max-width:760px){
  .sum-grid,.news-list,.cat-grid{grid-template-columns:1fr}
  .head-row{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:40px}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}