/* ===== PWELL Technology — site stylesheet ===== */
:root{
  --navy:#0b1526;
  --navy-2:#111f38;
  --ink:#101828;
  --slate:#475467;
  --line:#e4e9f0;
  --bg:#f5f8fb;
  --blue:#129fe0;
  --blue-dark:#0b7db4;
  --white:#ffffff;
  --radius:16px;
  --shadow:0 6px 24px rgba(16,24,40,.08);
  --font:"Inter","Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--grey{background:var(--bg)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
h1,h2,h3{line-height:1.2;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(26px,3.4vw,38px);margin-bottom:16px}
.lead{font-size:17px;color:var(--slate);max-width:720px}
.section-head{margin-bottom:48px}
.center{text-align:center}
.center .lead{margin:0 auto}

/* ---------- header ---------- */
.header{position:sticky;top:0;z-index:100;background:rgba(11,21,38,.92);backdrop-filter:blur(10px)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand svg{width:38px;height:38px;flex:none}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.04em;line-height:1.05}
.brand-name small{display:block;font-size:10px;font-weight:600;letter-spacing:.34em;color:#9fb3c8}
.nav{display:flex;align-items:center;gap:30px}
.nav a{color:#d5e0ec;font-size:15px;font-weight:600;transition:color .2s}
.nav a:hover{color:#fff}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;font-weight:700;font-size:15px;padding:12px 22px;border-radius:10px;border:0;cursor:pointer;transition:background .2s,transform .15s}
.btn:hover{background:var(--blue-dark);transform:translateY(-1px)}
.btn--ghost{background:transparent;border:1.5px solid rgba(255,255,255,.35)}
.btn--ghost:hover{background:rgba(255,255,255,.08)}
.btn--sm{padding:9px 16px;font-size:14px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.25s}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,#153055 100%);color:#fff;overflow:hidden}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:96px 24px 80px}
.hero h1{font-size:clamp(32px,4.6vw,54px);margin-bottom:22px}
.hero h1 .accent{color:var(--blue)}
.hero p{font-size:17.5px;color:#c3d2e2;max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-figure{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:28px}
.hero-figure img{border-radius:12px}
.hero-figure figcaption{margin-top:14px;font-size:13px;color:#8ea6bd;text-align:center;letter-spacing:.04em}
.stats{border-top:1px solid rgba(255,255,255,.12)}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);padding-top:34px;padding-bottom:34px}
.stat b{display:block;font-size:clamp(24px,3vw,34px);font-weight:800;color:#fff}
.stat span{font-size:13.5px;color:#93a9c0}

/* ---------- product cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .25s,transform .25s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.card-img{background:#eef2f7;padding:26px;display:flex;align-items:center;justify-content:center;min-height:210px}
.card-img img{border-radius:8px;max-height:190px;width:auto}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue-dark);background:#e6f5fc;border-radius:6px;padding:4px 9px;margin-bottom:12px;width:max-content}
.card-body h3{font-size:18px;margin-bottom:6px}
.card-body .model{font-size:13px;font-weight:700;color:var(--slate);letter-spacing:.06em;margin-bottom:10px}
.card-body p{font-size:14px;color:var(--slate);flex:1}
.spec-line{margin:14px 0 16px;font-size:13px;font-weight:700;color:var(--ink);border-top:1px dashed var(--line);padding-top:12px}
.more{font-size:14px;font-weight:700;color:var(--blue-dark)}
.more:hover{color:var(--navy)}

/* ---------- applications ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.app{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:box-shadow .25s,transform .25s}
.app:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.app .num{font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.1em;margin-bottom:14px}
.app h3{font-size:18px;margin-bottom:8px}
.app p{font-size:14px;color:var(--slate)}

/* ---------- capabilities ---------- */
.caps{background:var(--navy);color:#fff}
.caps .lead{color:#aebfd2}
.cap-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:44px}
.cap{border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:24px 20px;background:rgba(255,255,255,.04)}
.cap .idx{font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.14em;margin-bottom:12px}
.cap h3{font-size:16.5px;margin-bottom:6px}
.cap p{font-size:13px;color:#9db2c7}

/* ---------- company ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.about-grid .lead{margin-bottom:18px}
.values{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.value{background:#eaf6fd;color:var(--blue-dark);font-weight:700;font-size:14px;padding:10px 18px;border-radius:999px}
.base{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:18px}
.base h3{font-size:17px;margin-bottom:6px}
.base .role{font-size:12.5px;font-weight:700;color:var(--blue);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.base p{font-size:14px;color:var(--slate)}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.contact-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.contact-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.contact-item:last-child{border-bottom:0}
.contact-item .ic{width:42px;height:42px;flex:none;border-radius:10px;background:#e6f5fc;display:flex;align-items:center;justify-content:center}
.contact-item .ic svg{width:20px;height:20px;stroke:var(--blue-dark)}
.contact-item b{display:block;font-size:14.5px}
.contact-item span{font-size:14px;color:var(--slate)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{font-size:13px;font-weight:700;display:block;margin:14px 0 6px}
input,textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-family:var(--font);font-size:14.5px;background:#fbfcfe;transition:border-color .2s}
input:focus,textarea:focus{outline:none;border-color:var(--blue)}
textarea{min-height:120px;resize:vertical}
.form-note{font-size:12.5px;color:var(--slate);margin-top:12px}

/* ---------- footer ---------- */
.footer{background:var(--navy);color:#8ea2b8;font-size:13.5px}
.footer .container{padding:44px 24px}
.footer-top{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:26px}
.footer .brand-name{color:#fff}
.footer-nav{display:flex;gap:24px;flex-wrap:wrap}
.footer-nav a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- product detail pages ---------- */
.pd-hero{background:linear-gradient(135deg,var(--navy),#153055);color:#fff;padding:64px 0}
.breadcrumb{font-size:13.5px;color:#8ea6bd;margin-bottom:18px}
.breadcrumb a:hover{color:#fff}
.pd-hero h1{font-size:clamp(28px,3.8vw,42px);margin-bottom:8px}
.pd-hero .model{color:var(--blue);font-weight:800;letter-spacing:.08em;font-size:15px;margin-bottom:16px}
.pd-hero p{color:#c3d2e2;max-width:640px}
.pd-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.pd-tag{border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:7px 16px;font-size:13px;font-weight:600}
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.pd-gallery{background:#eef2f7;border-radius:var(--radius);padding:28px}
.pd-gallery img{border-radius:10px;margin-bottom:16px}
.pd-gallery img:last-child{margin-bottom:0}
table.specs{width:100%;border-collapse:collapse;font-size:14.5px}
table.specs th,table.specs td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
table.specs th{color:var(--slate);font-weight:600;width:46%}
table.specs td{font-weight:700}
table.specs tr:last-child th,table.specs tr:last-child td{border-bottom:0}
.feat li{position:relative;padding:8px 0 8px 26px;font-size:15px;color:var(--ink)}
.feat li::before{content:"";position:absolute;left:0;top:16px;width:9px;height:9px;border-radius:3px;background:var(--blue)}
.notice{margin-top:28px;background:#fff8ec;border:1px solid #f5dfa8;border-radius:12px;padding:18px 20px;font-size:13.5px;color:#7a5b16}
.pd-cta{background:var(--bg);border-radius:var(--radius);padding:40px;text-align:center;margin-top:64px}
.pd-cta h2{font-size:26px}
.related{margin-top:64px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .cap-grid{grid-template-columns:repeat(3,1fr)}
  .stats .container{grid-template-columns:repeat(2,1fr);gap:22px}
}
@media (max-width:860px){
  .hero .container{grid-template-columns:1fr;padding:64px 24px}
  .hero-figure{max-width:520px}
  .about-grid,.contact-grid,.pd-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .nav{position:fixed;inset:72px 0 auto 0;background:var(--navy);flex-direction:column;align-items:flex-start;padding:24px;gap:20px;display:none;box-shadow:0 20px 30px rgba(0,0,0,.3)}
  .nav.open{display:flex}
  .nav-toggle{display:block}
  .section{padding:64px 0}
}
@media (max-width:520px){
  .grid-4,.cap-grid{grid-template-columns:1fr}
  form .row{grid-template-columns:1fr}
}