/* ===== Hysear.com shared styles — bright business (v1) ===== */
:root{
  --navy:#0E2A47;
  --blue:#1E7FD6;
  --blue-dark:#1567AE;
  --ink:#243447;
  --muted:#5B6B7C;
  --line:#E3E9F0;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FB;
  --card:#FFFFFF;
  --radius:14px;
  --shadow:0 6px 24px rgba(14,42,71,.08);
  --shadow-hover:0 12px 32px rgba(14,42,71,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","Helvetica Neue",Arial,"PingFang SC",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}
a{color:var(--blue);text-decoration:none}
img,svg{display:block;max-width:100%}
.container{max-width:1160px;margin:0 auto;padding:0 24px}
section{padding:84px 0}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
h1{font-size:clamp(32px,4.4vw,50px);line-height:1.15;color:var(--navy);font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(26px,3vw,36px);line-height:1.25;color:var(--navy);font-weight:800;letter-spacing:-.01em}
h3{font-size:19px;color:var(--navy);font-weight:700}
.sub{color:var(--muted);font-size:17px;max-width:640px}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.arrow-link{font-weight:600;white-space:nowrap}
.arrow-link:hover{color:var(--blue-dark)}
.check{width:15px;height:15px;flex:none;margin-top:3px;color:var(--blue)}

/* ===== Header ===== */
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.logo{font-size:26px;font-weight:800;color:var(--blue);letter-spacing:.02em;display:flex;align-items:center;gap:10px}
.logo svg{width:30px;height:30px}
.nav-menu{display:flex;gap:26px;list-style:none;margin-left:auto}
.nav-menu a{color:var(--ink);font-size:14.5px;font-weight:500}
.nav-menu a:hover{color:var(--blue)}
.nav-menu a.active{color:var(--blue);font-weight:700}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 24px;border-radius:999px;font-weight:600;font-size:15px;border:2px solid transparent;cursor:pointer;transition:.2s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);box-shadow:0 6px 18px rgba(30,127,214,.35)}
.btn-outline{border-color:var(--blue);color:var(--blue)}
.btn-outline:hover{background:rgba(30,127,214,.08)}
.btn-white{background:#fff;color:var(--navy)}
.btn-white:hover{box-shadow:0 6px 18px rgba(0,0,0,.25)}
.nav-toggle{display:none;margin-left:auto;background:none;border:none;font-size:26px;color:var(--navy);cursor:pointer}

/* ===== Hero (home) ===== */
.hero{background:linear-gradient(180deg,#F2F8FF 0%,#FFFFFF 100%);padding:96px 0 90px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero-sub{font-size:19px;color:var(--muted);margin:22px 0 32px}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.hero-points{display:flex;gap:36px;flex-wrap:wrap}
.point{display:flex;flex-direction:column;gap:8px;max-width:170px}
.point .ic{width:44px;height:44px;border-radius:12px;background:rgba(30,127,214,.1);display:flex;align-items:center;justify-content:center;color:var(--blue)}
.point span{font-size:14px;font-weight:600;color:var(--navy)}
.hero-visual{position:relative}
.hero-visual .glow{position:absolute;inset:-8% -12%;background:radial-gradient(closest-side,rgba(30,127,214,.18),transparent);filter:blur(8px)}
.hero-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow);text-align:center}
.hero-card .tag{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--blue);text-transform:uppercase}
.hero-card .name{font-size:22px;font-weight:800;color:var(--navy);margin:4px 0 2px}
.hero-card .desc{font-size:13.5px;color:var(--muted)}
.hero-card img{margin:14px auto 4px;border-radius:12px}

/* ===== Subpage head ===== */
.page-head{background:linear-gradient(180deg,#F2F8FF 0%,#FFFFFF 100%);padding:64px 0 56px;border-bottom:1px solid var(--line)}
.page-head h1{margin:6px 0 16px}
.page-head .sub{font-size:17px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--blue)}

/* ===== Product categories ===== */
.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.cat{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px 16px 18px;text-align:center;transition:.25s;display:block;color:inherit}
.cat:hover{background:#fff;box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:rgba(30,127,214,.4)}
.cat svg{margin:0 auto 14px;width:56px;height:56px}
.cat p{font-size:13.5px;font-weight:600;color:var(--navy)}
.cat .go{display:inline-block;margin-top:8px;font-size:12.5px;color:var(--blue);opacity:0;transition:.2s}
.cat:hover .go{opacity:1}

/* ===== Technology ===== */
.tech{background:var(--bg-soft)}
.tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.tech-copy p{color:var(--muted);margin-bottom:26px}
.compare{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:stretch}
.vs-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 16px;text-align:center;box-shadow:var(--shadow)}
.vs-box.win{border-color:rgba(30,127,214,.5)}
.vs-badge{align-self:center;width:46px;height:46px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;font-size:14px;display:flex;align-items:center;justify-content:center}
.vs-box h4{font-size:14px;color:var(--navy);margin-bottom:10px}
.vs-box svg{margin:0 auto 10px}
.vs-box p{font-size:12.5px;color:var(--muted)}

/* ===== Featured products (home) ===== */
.prods{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.prod{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:grid;grid-template-columns:240px 1fr;transition:.25s}
.prod:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.prod-media{background:linear-gradient(160deg,#F0F7FF,#E4F0FB);display:flex;align-items:center;justify-content:center;padding:24px}
.prod-media img{border-radius:10px}
.prod-body{padding:26px 26px 22px}
.prod-body h3{font-size:20px}
.prod-body .model{font-size:13px;color:var(--blue);font-weight:700;letter-spacing:.08em}
.specs{list-style:none;margin:16px 0 18px}
.specs li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);padding:5px 0}

/* ===== Video / Interview ===== */
.video-band{background:linear-gradient(135deg,var(--navy) 0%,#14406E 60%,#1E7FD6 160%);color:#fff}
.video-band .eyebrow{color:#8CC4F5}
.video-band h2{color:#fff}
.video-band .sub{color:rgba(255,255,255,.75)}
.video-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.video-frame{position:relative;aspect-ratio:16/9;border-radius:18px;overflow:hidden;background:#0A1F38;box-shadow:0 20px 50px rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.15)}
.video-frame .waves{position:absolute;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(30,127,214,.35),transparent 60%)}
.play-btn{position:relative;width:92px;height:92px;border-radius:50%;background:var(--blue);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.25s;box-shadow:0 0 0 14px rgba(30,127,214,.25)}
.play-btn:hover{transform:scale(1.08);box-shadow:0 0 0 22px rgba(30,127,214,.15)}
.play-btn::after{content:"";border-left:26px solid #fff;border-top:16px solid transparent;border-bottom:16px solid transparent;margin-left:8px}
.video-note{position:absolute;bottom:14px;left:16px;font-size:12.5px;color:rgba(255,255,255,.85);background:rgba(10,31,56,.6);padding:6px 12px;border-radius:8px;backdrop-filter:blur(4px)}
.video-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.video-list li{display:flex;gap:14px;align-items:flex-start;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:14px 16px;transition:.2s}
.video-list li:hover{background:rgba(255,255,255,.13)}
.video-list .ic{flex:none;width:38px;height:38px;border-radius:10px;background:rgba(30,127,214,.35);display:flex;align-items:center;justify-content:center}
.video-list b{display:block;color:#fff;font-size:14.5px}
.video-list span{font-size:13px;color:rgba(255,255,255,.7)}

/* ===== Why Hysear ===== */
.why-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.why-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.why-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:.25s}
.why-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:rgba(30,127,214,.4)}
.why-card .ic{width:46px;height:46px;border-radius:12px;background:rgba(30,127,214,.1);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.why-card h3{font-size:16.5px;margin-bottom:6px}
.why-card p{font-size:13.5px;color:var(--muted)}

/* ===== OEM ===== */
.oem-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.oem-media{background:linear-gradient(150deg,#F0F7FF,#E1EEFB);border-radius:18px;padding:36px;display:flex;justify-content:center;min-height:340px;align-items:center;border:1px solid var(--line)}
.oem-media img{border-radius:12px}
.oem-points{display:flex;gap:26px;margin:30px 0 32px;flex-wrap:wrap}
.oem-point{display:flex;align-items:center;gap:10px;font-size:14.5px;font-weight:600;color:var(--navy)}
.oem-point .ic{width:38px;height:38px;border-radius:50%;background:rgba(30,127,214,.12);color:var(--blue);display:flex;align-items:center;justify-content:center;flex:none}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px;position:relative;counter-increment:step}
.step::before{content:counter(step,decimal-leading-zero);font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.08em;display:block;margin-bottom:10px}
.step h3{font-size:15.5px;margin-bottom:6px}
.step p{font-size:13px;color:var(--muted)}

/* ===== Certifications ===== */
.cert-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cert-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.cert{aspect-ratio:1;background:#fff;border:1px solid var(--line);border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;font-size:12px;font-weight:700;color:var(--navy);transition:.2s}
.cert:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.cert span{font-size:15px;letter-spacing:.02em}
.cert small{font-size:9.5px;color:var(--muted);font-weight:500}

/* ===== Resources ===== */
.res{background:var(--bg-soft)}
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.res-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:block;color:inherit}
.res-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.res-thumb{height:150px;display:flex;align-items:center;justify-content:center;position:relative}
.res-thumb.t1{background:linear-gradient(135deg,#EAF4FF,#D8E9FA)}
.res-thumb.t2{background:linear-gradient(135deg,#0E2A47,#1E5F9E)}
.res-thumb.t3{background:linear-gradient(135deg,#E9F9F1,#D3F1E2)}
.res-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px;background:rgba(14,42,71,.08);color:var(--navy);margin-bottom:8px}
.res-thumb.t2 .res-tag{background:rgba(255,255,255,.15);color:#fff}
.res-body{padding:18px 20px 20px}
.res-body h3{font-size:15.5px;margin-bottom:8px}
.res-body .arrow-link{font-size:13.5px}

/* ===== Product detail page ===== */
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.detail-media{background:linear-gradient(160deg,#F0F7FF,#E4F0FB);border:1px solid var(--line);border-radius:18px;padding:32px;display:flex;align-items:center;justify-content:center}
.detail-media img{border-radius:12px;max-height:520px;width:auto;max-width:100%}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:14px}
.gallery img{border-radius:10px;border:1px solid var(--line);cursor:pointer;transition:.2s;background:#fff}
.gallery img:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.spec-table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.spec-table caption{caption-side:top;text-align:left;font-weight:700;color:var(--navy);font-size:16px;padding:0 0 10px}
.spec-table th{background:var(--bg-soft);color:var(--navy);text-align:left;padding:11px 16px;font-size:13.5px;border-bottom:1px solid var(--line)}
.spec-table td{padding:11px 16px;border-bottom:1px solid var(--line);color:var(--muted)}
.spec-table tr:last-child td{border-bottom:none}
.spec-table td:first-child{color:var(--navy);font-weight:600;width:38%}
.model-tabs{display:flex;gap:10px;margin-bottom:26px;flex-wrap:wrap}
.model-tab{padding:9px 22px;border-radius:999px;border:1.5px solid var(--line);font-weight:600;font-size:14.5px;color:var(--muted);cursor:pointer;background:#fff;transition:.2s}
.model-tab.active{border-color:var(--blue);color:var(--blue);background:rgba(30,127,214,.06)}

/* ===== Split layout ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split img{border-radius:14px}
.feat-list{list-style:none;margin-top:22px}
.feat-list li{display:flex;gap:12px;align-items:flex-start;padding:8px 0;font-size:15px;color:var(--muted)}
.feat-list svg{flex:none;margin-top:4px;color:var(--blue)}
.feat-list b{color:var(--navy)}

/* ===== Products overview page ===== */
.line-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;display:grid;grid-template-columns:380px 1fr;transition:.25s;margin-bottom:28px}
.line-card:hover{box-shadow:var(--shadow-hover)}
.line-media{background:linear-gradient(160deg,#F0F7FF,#E4F0FB);display:flex;align-items:center;justify-content:center;padding:28px}
.line-media img{border-radius:10px;max-height:300px;width:auto;max-width:100%}
.line-body{padding:32px 34px}
.line-body h2{font-size:24px;margin-bottom:6px}
.line-body .model{font-size:13px;color:var(--blue);font-weight:700;letter-spacing:.08em}
.line-body p{color:var(--muted);font-size:15px;margin:12px 0 16px}
.line-body .btn{margin-top:6px}

/* ===== Contact form ===== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
form .field{margin-bottom:18px}
form label{display:block;font-size:13.5px;font-weight:600;color:var(--navy);margin-bottom:7px}
form input,form select,form textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font:inherit;font-size:14.5px;color:var(--ink);background:#fff;transition:.2s}
form input:focus,form select,form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,127,214,.12)}
form textarea{min-height:130px;resize:vertical}
.info-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:18px}
.info-card h3{font-size:16px;margin-bottom:10px}
.info-card p{font-size:14.5px;color:var(--muted)}
.info-card a{font-weight:600}

/* ===== CTA ===== */
.cta{position:relative;background:var(--navy);color:#fff;padding:90px 0;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 20% 120%,rgba(30,127,214,.5),transparent 55%),radial-gradient(ellipse at 85% -20%,rgba(30,127,214,.35),transparent 50%)}
.cta .container{position:relative;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.75);font-size:17px}

/* ===== Footer ===== */
footer{background:#0A1F38;color:rgba(255,255,255,.65);padding:64px 0 0;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:48px;padding-bottom:48px}
.foot-logo{font-size:24px;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-tag{font-size:13.5px}
.foot-links{list-style:none;display:flex;flex-wrap:wrap;gap:8px 22px}
.foot-links a{color:rgba(255,255,255,.65)}
.foot-links a:hover{color:#fff}
.foot-social{display:flex;gap:14px}
.foot-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#fff}
.foot-social a:hover{background:var(--blue)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px}
.foot-bottom a{color:rgba(255,255,255,.55)}

/* ===== Responsive ===== */
@media(max-width:1020px){
  .cats{grid-template-columns:repeat(3,1fr)}
  .hero-grid,.tech-grid,.why-grid,.oem-grid,.cert-grid,.video-grid,.detail-grid,.split,.form-grid{grid-template-columns:1fr}
  .prod{grid-template-columns:1fr}
  .prod-media{padding:40px}
  .line-card{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .nav-menu,.nav .btn{display:none}
  .nav-toggle{display:block}
  .nav-menu.open{display:flex;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:20px 24px;gap:16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .cats{grid-template-columns:repeat(2,1fr)}
  .res-grid,.why-cards{grid-template-columns:1fr}
  .cert-tiles{grid-template-columns:repeat(3,1fr)}
  .gallery{grid-template-columns:repeat(3,1fr)}
  section{padding:64px 0}
  .steps{grid-template-columns:1fr}
}