/* Zonova Technology — site styles */
:root{
  --brand:#FB603A;
  --brand-dark:#D9461F;      /* accessible orange for small text on white */
  --brand-tint:#FFF1EC;
  --ink:#1E2328;
  --ink-2:#4A525B;
  --ink-3:#7A838D;
  --line:#E6E8EB;
  --bg:#FFFFFF;
  --bg-2:#F6F7F8;
  --bg-dark:#16191D;
  --radius:14px;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 6px 20px rgba(16,24,40,.06);
  --max:1160px;
  --font:"Inter","Noto Sans TC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--brand-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:750}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.section{padding:84px 0}
.section.alt{background:var(--bg-2)}
.section.dark{background:var(--bg-dark);color:#E9ECEF}
.section.dark h2,.section.dark h3{color:#fff}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand-dark);margin-bottom:12px}
.dark .eyebrow{color:var(--brand)}
.lead{font-size:1.15rem;color:var(--ink-2);max-width:720px}
.dark .lead{color:#B9C0C7}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.muted{color:var(--ink-3)}
.small{font-size:.88rem}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:650;font-size:.97rem;border:1.5px solid transparent;cursor:pointer;transition:.15s;text-decoration:none!important;font-family:inherit}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.dark .btn-ghost{border-color:#fff;color:#fff}
.dark .btn-ghost:hover{background:#fff;color:var(--ink)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:1.25rem;letter-spacing:.06em;text-decoration:none!important}
.brand img{width:30px;height:30px}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{display:block;padding:8px 13px;border-radius:8px;color:var(--ink-2);font-weight:550;font-size:.95rem;text-decoration:none}
.nav-links a:hover{background:var(--bg-2);color:var(--ink)}
.nav-links a[aria-current="page"]{color:var(--brand-dark)}
.nav-links .btn{margin-left:10px;padding:9px 18px;color:#fff}
.nav-toggle{display:none;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
@media (max-width:920px){
  .nav-toggle{display:block}
  .nav-links{position:absolute;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px 18px;display:none}
  .nav-links.open{display:flex}
  .nav-links .btn{margin:8px 0 0;justify-content:center}
}

/* Hero */
.hero{padding:72px 0 80px;background:radial-gradient(1200px 500px at 85% 10%,var(--brand-tint),transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1 .accent{color:var(--brand)}
.hero-visual{position:relative;display:flex;justify-content:center;gap:24px;align-items:flex-end}
.hero-visual .device{width:340px;filter:drop-shadow(0 24px 40px rgba(16,24,40,.16))}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.85rem;font-weight:600;padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand)}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr}.hero{padding-top:48px}}

/* Page hero (inner pages) */
.page-hero{padding:64px 0 48px;background:linear-gradient(180deg,var(--bg-2),#fff)}
.breadcrumb{font-size:.85rem;color:var(--ink-3);margin-bottom:14px}
.breadcrumb a{color:var(--ink-3)}

/* Grids & cards */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:920px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.card h3{margin-top:4px}
.card p:last-child{margin-bottom:0}
a.card{display:block;color:inherit;text-decoration:none!important;transition:transform .15s,box-shadow .15s,border-color .15s}
a.card:hover{transform:translateY(-3px);border-color:#F5C3B4;box-shadow:0 10px 30px rgba(16,24,40,.10)}
.card .more{display:inline-block;margin-top:12px;font-weight:650;color:var(--brand-dark)}
.icon{width:48px;height:48px;border-radius:12px;background:var(--brand-tint);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.icon svg{width:26px;height:26px;stroke:var(--brand-dark);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.dark .card{background:#1F2328;border-color:#2C3238;box-shadow:none}
.dark .card p{color:#B9C0C7}

/* Feature list */
.checks{list-style:none;padding:0;margin:0}
.checks li{position:relative;padding:6px 0 6px 30px}
.checks li::before{content:"";position:absolute;left:0;top:11px;width:18px;height:18px;border-radius:50%;background:var(--brand-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3.2 3L15 7' fill='none' stroke='%23D9461F' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}

/* Product cards */
.product-card{display:flex;flex-direction:column}
.product-card .thumb{background:var(--bg-2);border-radius:10px;height:220px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;padding:18px}
.product-card .thumb svg{max-height:100%}
.model{font-family:ui-monospace,"SF Mono",Consolas,monospace;font-size:.82rem;font-weight:600;color:var(--ink-3);letter-spacing:.02em}
.tag{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:3px 9px;border-radius:999px;background:var(--bg-2);color:var(--ink-2);margin-left:6px;vertical-align:middle}
.tag.orange{background:var(--brand-tint);color:var(--brand-dark)}
.tag.green{background:#E9F7EF;color:#1F7A45}

/* Product detail */
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.pd-visual{background:var(--bg-2);border-radius:20px;padding:40px;display:flex;justify-content:center}
@media (max-width:920px){.pd-grid{grid-template-columns:1fr}}
.spec{width:100%;border-collapse:collapse;font-size:.95rem}
.spec th,.spec td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:40%;color:var(--ink-2);font-weight:600;background:var(--bg-2)}
.notice{border-left:4px solid var(--brand);background:var(--brand-tint);padding:14px 18px;border-radius:8px;font-size:.93rem;color:var(--ink-2)}
.dl-list{list-style:none;padding:0;margin:0}
.dl-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.dl-list .fmt{font-size:.75rem;font-weight:700;color:var(--ink-3);background:var(--bg-2);border-radius:6px;padding:3px 8px;margin-right:8px}

/* Tabs-like anchor nav */
.subnav{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.subnav a{padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-weight:600;font-size:.9rem;text-decoration:none}
.subnav a:hover{border-color:var(--brand);color:var(--brand-dark)}

/* Solutions */
.solution{scroll-margin-top:90px}
.sol-head{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:start;margin-bottom:34px}
@media (max-width:920px){.sol-head{grid-template-columns:1fr}}
.sysdiag{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.sysdiag svg{width:100%;height:auto}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:baseline;gap:8px;padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:.9rem}
.chip b{font-family:ui-monospace,Consolas,monospace;color:var(--brand-dark)}
.sol-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:920px){.sol-cols{grid-template-columns:1fr}}
.sol-cols h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-3);margin-bottom:12px}

/* Cable catalog */
.cat-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.cat-table th,.cat-table td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left;font-size:.95rem}
.cat-table thead th{background:var(--bg-2);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3)}
.cat-table td:first-child{font-family:ui-monospace,Consolas,monospace;font-weight:700;color:var(--brand-dark);white-space:nowrap}
.cat-table tr:last-child td{border-bottom:0}
.table-wrap{overflow-x:auto}

/* Steps */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.steps li{list-style:none;counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.steps li::before{content:counter(s);display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;margin-bottom:10px}
@media (max-width:920px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* FAQ */
details{border-bottom:1px solid var(--line);padding:16px 0}
summary{cursor:pointer;font-weight:650;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--brand-dark)}
details[open] summary::after{content:"–"}
details p{margin:10px 0 0;color:var(--ink-2)}

/* Forms */
.form{display:grid;gap:16px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:620px){.form .row{grid-template-columns:1fr}}
label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
input,select,textarea{width:100%;font:inherit;padding:12px 14px;border:1px solid #D3D7DC;border-radius:10px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:transparent}
textarea{min-height:130px;resize:vertical}
.form-note{font-size:.85rem;color:var(--ink-3)}

/* CTA band */
.cta-band{background:var(--brand);color:#fff;border-radius:22px;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0 0 6px}
.cta-band p{margin:0;color:#FFE5DC}
.cta-band .btn{background:#fff;color:var(--ink)}
.cta-band .btn:hover{background:var(--ink);color:#fff}

/* Partner strip */
.partner{display:grid;grid-template-columns:auto 1fr auto;gap:30px;align-items:center}
.partner-logo{font-weight:900;font-size:1.6rem;letter-spacing:.08em;color:#1F5FAE;border:1px solid var(--line);border-radius:12px;padding:18px 26px;background:#fff}
@media (max-width:760px){.partner{grid-template-columns:1fr}}

/* Footer */
.site-footer{background:var(--bg-dark);color:#AEB5BC;padding:60px 0 30px;font-size:.93rem}
.site-footer a{color:#D5DADF}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
@media (max-width:820px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:7px 0}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:.06em;font-size:1.2rem;margin-bottom:14px}
.footer-brand img{width:30px;height:30px}
.footer-bottom{border-top:1px solid #2A2F35;margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem}

/* Placeholders */
.ph{border:1.5px dashed #CBD1D7;border-radius:12px;background:repeating-linear-gradient(45deg,#FAFBFC,#FAFBFC 10px,#F3F5F7 10px,#F3F5F7 20px);display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:.85rem;font-weight:600;text-align:center;padding:16px;min-height:140px}

.mt0{margin-top:0}.mt1{margin-top:12px}.mt2{margin-top:24px}.mt3{margin-top:40px}.mb0{margin-bottom:0}.mb3{margin-bottom:40px}

/* Product photos */
.product-photo{width:100%;height:auto;border-radius:18px;box-shadow:0 24px 50px rgba(16,24,40,.16)}
.hero-visual .product-photo{max-width:540px}
.product-card .thumb:has(.product-photo){padding:0;overflow:hidden}
.product-card .thumb .product-photo{height:100%;object-fit:cover;border-radius:10px;box-shadow:none}
.pd-visual:has(.product-photo){padding:0;background:none}