:root {
  --ink: #111111;
  --ink-2: #0b1d33;
  --panel: #102944;
  --paper: #ffffff;
  --white: #ffffff;
  --muted: #9eb0c3;
  --blue: #38bdf8;
  --blue-2: #0ea5e9;
  --orange: #ed1c24;
  --line: rgba(255,255,255,.13);
  --shadow: 0 24px 70px rgba(2, 10, 22, .18);
  --radius: 20px;
  --max: 1180px;
}
/* Hongxun brand: white content, red feature sections and black framing. */
.company-logo { width:250px; height:auto; background:#fff; padding:6px 10px; border-radius:4px; }
.site-header { background:rgba(17,17,17,.97); }
.hero { background:linear-gradient(130deg,#111 0%,#191919 70%,#441215 100%); }
.dark-section { background:#d91620; }
.dark-section .eyebrow, .dark-section .step::before { color:#fff; }
.dark-section .section-copy, .dark-section .step p { color:#fff; }
.dark-section .step { background:rgba(0,0,0,.14); }
.cta-band { background:#d91620; }
.cta-band p { color:#fff; }
.page-hero { background:linear-gradient(125deg,#111,#251416); }
.topline, .site-footer { background:#111; }
.btn-primary { background:#ed1c24; color:#fff; box-shadow:0 10px 30px rgba(237,28,36,.2); }
.btn-primary:hover { background:#c91019; }
.dark-section .btn-primary, .cta-band .btn-primary { background:#fff; color:#111; }
.nav-cta { background:#ed1c24; border-color:#ed1c24; }
.whatsapp-float { position:fixed; right:22px; bottom:22px; z-index:70; padding:13px 19px; border-radius:30px; background:#111; color:#fff; border:2px solid #ed1c24; box-shadow:0 8px 28px #0003; font-weight:700; font-size:14px; }
@media(max-width:620px) { .company-logo { width:190px; } .whatsapp-float { right:12px; bottom:12px; font-size:12px; } }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #172033; background: var(--paper); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.eyebrow { margin: 0 0 12px; color: var(--blue-2); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 800; }
.section-title { max-width: 760px; margin: 0; font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.08; letter-spacing: -.045em; color: var(--ink); }
.section-copy { max-width: 690px; color: #55657a; font-size: 1.05rem; }
.section { padding: 96px 0; }
.topline { background: #03101e; color: #bed0e3; font-size: .78rem; border-bottom: 1px solid rgba(255,255,255,.08); }
.topline .container { display: flex; justify-content: space-between; gap: 24px; padding: 8px 0; }
.topline strong { color: #fff; }
.site-header { position: sticky; top: 0; z-index: 50; color: #fff; background: rgba(7,17,31,.92); backdrop-filter: blur(18px); border-bottom: 1px solid var(--line); }
.nav { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 850; letter-spacing: -.02em; }
.brand-mark { width: 38px; height: 28px; border: 2px solid var(--blue); border-radius: 5px; position: relative; box-shadow: inset 0 0 16px rgba(56,189,248,.14); }
.brand-mark::after { content:""; position:absolute; width:12px; height:2px; background:var(--orange); bottom:-7px; left:11px; border-radius:99px; }
.brand-name { font-size: 1.2rem; }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: .9rem; color: #d4dfeb; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--blue); }
.nav-cta { padding: 11px 17px; border: 1px solid rgba(56,189,248,.45); border-radius: 999px; color: #fff !important; background: rgba(56,189,248,.1); }
.menu-btn { display:none; background:transparent; border:1px solid var(--line); color:white; border-radius:9px; width:42px; height:42px; }
.hero { position:relative; overflow:hidden; min-height: 680px; color:white; background: radial-gradient(circle at 80% 35%, rgba(22,143,194,.22), transparent 30%), linear-gradient(135deg, #06111f 0%, #0b1d33 64%, #071420 100%); }
.hero::before { content:""; position:absolute; inset:0; opacity:.18; background-image: linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px); background-size:56px 56px; mask-image: linear-gradient(to right, #000, transparent 80%); }
.hero-grid { position:relative; z-index:1; min-height:680px; display:grid; grid-template-columns: 1.05fr .95fr; align-items:center; gap:52px; }
.hero h1 { margin: 0 0 22px; max-width: 760px; font-size: clamp(3rem, 6vw, 5.8rem); line-height: .96; letter-spacing: -.065em; }
.hero h1 span { color: var(--blue); }
.hero-copy { max-width: 650px; color:#b8c8d9; font-size:1.12rem; }
.button-row { display:flex; flex-wrap:wrap; gap:13px; margin-top:32px; }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:10px; padding:14px 20px; border-radius:999px; font-weight:750; border:1px solid transparent; cursor:pointer; }
.btn-primary { color:#04101a; background:var(--blue); box-shadow:0 10px 34px rgba(56,189,248,.28); }
.btn-primary:hover { background:#77d8fb; }
.btn-secondary { color:white; border-color:rgba(255,255,255,.25); background:rgba(255,255,255,.05); }
.hero-visual { position:relative; min-height:500px; display:grid; place-items:center; }
.hero-visual img { width:100%; height:500px; object-fit:cover; border-radius:28px; box-shadow:0 42px 90px rgba(0,0,0,.4); border:1px solid rgba(255,255,255,.14); }
.screen-concept { width:min(100%, 520px); aspect-ratio: 1.35; border:1px solid rgba(255,255,255,.17); border-radius:22px; background:linear-gradient(140deg, rgba(56,189,248,.65), rgba(15,32,55,.15) 38%, rgba(255,138,61,.32)), #0c1c30; box-shadow:0 42px 90px rgba(0,0,0,.45), inset 0 0 70px rgba(56,189,248,.12); position:relative; overflow:hidden; }
.screen-concept::before { content:""; position:absolute; inset:0; background:linear-gradient(120deg, transparent 35%, rgba(255,255,255,.25) 48%, transparent 61%); transform:translateX(-70%); }
.screen-concept::after { content:""; position:absolute; width:35%; height:3px; bottom:-16px; left:32.5%; background:var(--orange); border-radius:99px; box-shadow:0 0 25px rgba(255,138,61,.45); }
.floating-card { position:absolute; padding:14px 17px; background:rgba(6,17,31,.84); border:1px solid var(--line); border-radius:14px; backdrop-filter:blur(12px); box-shadow:var(--shadow); }
.floating-card strong { display:block; font-size:1.05rem; }
.floating-card small { color:var(--muted); }
.fc-one { left:-12px; bottom:82px; }
.fc-two { right:-10px; top:70px; }
.trust-bar { background:#fff; border-bottom:1px solid #dde5ed; }
.trust-grid { display:grid; grid-template-columns: repeat(4,1fr); }
.trust-item { padding:28px 28px 28px 0; border-right:1px solid #e5ebf1; }
.trust-item:not(:first-child) { padding-left:28px; }
.trust-item:last-child { border-right:0; }
.trust-item strong { display:block; color:var(--ink); font-size:1.45rem; letter-spacing:-.03em; }
.trust-item span { color:#6a7a8e; font-size:.86rem; }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:45px; }
.card { background:#fff; border:1px solid #dfe6ed; border-radius:var(--radius); overflow:hidden; box-shadow:0 10px 35px rgba(15,35,60,.06); }
.card-body { padding:26px; }
.card h3 { margin:0 0 9px; font-size:1.35rem; color:var(--ink); letter-spacing:-.025em; }
.card p { margin:0; color:#607086; }
.card-link { display:inline-flex; margin-top:20px; color:#087aac; font-weight:750; }
.product-art { min-height:220px; position:relative; display:grid; place-items:center; background:linear-gradient(145deg,#0a1d32,#123657); }
.product-art .tv { width:68%; aspect-ratio:16/9; border:5px solid #1c2835; border-radius:7px; background:linear-gradient(135deg,#56cdf7,#183657 45%,#ff8a3d); box-shadow:0 25px 35px rgba(0,0,0,.35); }
.product-art .tv::after { content:""; display:block; width:30%; height:4px; background:#47566a; margin:calc(56.25% + 8px) auto 0; border-radius:99px; }
.dark-section { color:#fff; background:var(--ink); }
.dark-section .section-title { color:#fff; }
.dark-section .section-copy { color:#aec0d2; }
.capability-grid { display:grid; grid-template-columns:.85fr 1.15fr; gap:64px; align-items:start; }
.steps { counter-reset:step; display:grid; gap:12px; }
.step { counter-increment:step; display:grid; grid-template-columns:54px 1fr; gap:18px; padding:20px; border-radius:15px; background:rgba(255,255,255,.045); border:1px solid var(--line); }
.step::before { content:"0" counter(step); display:grid; place-items:center; width:46px; height:46px; border-radius:50%; color:var(--blue); border:1px solid rgba(56,189,248,.45); font-weight:850; }
.step h3 { margin:0 0 5px; font-size:1.05rem; }
.step p { margin:0; color:#aebed0; font-size:.92rem; }
.split { display:grid; grid-template-columns:1fr 1fr; gap:54px; align-items:center; }
.factory-panel { min-height:470px; border-radius:26px; background:linear-gradient(145deg, rgba(56,189,248,.2), transparent 55%), #0c2239; position:relative; overflow:hidden; box-shadow:var(--shadow); }
.factory-panel::before { content:""; position:absolute; inset:11%; border:1px solid rgba(255,255,255,.18); background:repeating-linear-gradient(90deg, transparent 0 12%, rgba(255,255,255,.045) 12% 12.5%); }
.factory-panel::after { content:"MANUFACTURING / QC / DELIVERY"; position:absolute; left:8%; bottom:7%; color:#d5e7f7; font-size:.75rem; letter-spacing:.17em; }
.checks { display:grid; gap:14px; margin:28px 0 0; padding:0; list-style:none; }
.checks li { display:flex; gap:12px; color:#4f6075; }
.checks li::before { content:"✓"; display:grid; place-items:center; flex:0 0 24px; height:24px; border-radius:50%; color:#087aac; background:#dff4fd; font-weight:900; }
.cta-band { padding:70px 0; color:#fff; background:linear-gradient(120deg,#0a3653,#0a2035 60%,#4b2a19); }
.cta-grid { display:flex; align-items:center; justify-content:space-between; gap:38px; }
.cta-band h2 { margin:0 0 10px; font-size:clamp(2rem,4vw,3.5rem); line-height:1.05; letter-spacing:-.04em; }
.cta-band p { margin:0; color:#bfd0df; }
.page-hero { padding:100px 0 72px; color:#fff; background:radial-gradient(circle at 80% 10%,rgba(56,189,248,.22),transparent 30%), var(--ink); }
.page-hero h1 { max-width:850px; margin:0; font-size:clamp(2.8rem,5.2vw,5rem); line-height:1; letter-spacing:-.055em; }
.page-hero p { max-width:720px; color:#b8c8d9; font-size:1.1rem; }
.breadcrumb { color:#83a0b9; font-size:.78rem; margin-bottom:22px; }
.detail-grid { display:grid; grid-template-columns:1fr 1fr; gap:28px; margin-top:44px; }
.feature-box { padding:28px; background:#fff; border:1px solid #dfe6ed; border-radius:18px; }
.feature-box h3 { margin:0 0 8px; color:var(--ink); }
.feature-box p { color:#607086; margin:0; }
.filter-row { display:flex; flex-wrap:wrap; gap:10px; margin:32px 0; }
.filter-btn { border:1px solid #cad6e2; background:white; border-radius:999px; padding:9px 15px; cursor:pointer; color:#405167; }
.filter-btn.active { background:var(--ink); color:white; border-color:var(--ink); }
.contact-grid { display:grid; grid-template-columns:.8fr 1.2fr; gap:48px; align-items:start; }
.contact-card { padding:28px; color:white; background:var(--ink); border-radius:20px; }
.contact-card p, .contact-card a { color:#bfd0df; }
.form { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field { display:grid; gap:7px; }
.field.full { grid-column:1/-1; }
.field label { color:#435269; font-size:.86rem; font-weight:700; }
.field input, .field select, .field textarea { width:100%; border:1px solid #cbd6e1; border-radius:11px; padding:12px 13px; background:#fff; color:#162238; }
.field textarea { min-height:132px; resize:vertical; }
.form-note { color:#728196; font-size:.8rem; }
.site-footer { padding:62px 0 26px; color:#aebed0; background:#040c16; }
.footer-grid { display:grid; grid-template-columns:1.2fr repeat(3,1fr); gap:40px; }
.footer-grid h3 { color:white; font-size:.92rem; }
.footer-grid a { display:block; padding:4px 0; font-size:.88rem; }
.footer-grid a:hover { color:var(--blue); }
.footer-bottom { display:flex; justify-content:space-between; gap:20px; margin-top:46px; padding-top:22px; border-top:1px solid var(--line); font-size:.78rem; }
@media (max-width: 920px) {
  .nav-links { display:none; position:absolute; top:74px; left:0; right:0; padding:18px 20px 24px; background:#07111f; border-bottom:1px solid var(--line); flex-direction:column; align-items:flex-start; }
  .nav-links.open { display:flex; }
  .menu-btn { display:block; }
  .hero-grid, .split, .capability-grid, .contact-grid { grid-template-columns:1fr; }
  .hero-grid { padding:70px 0; }
  .hero-visual { min-height:390px; }
  .hero-visual img { height:390px; }
  .trust-grid { grid-template-columns:1fr 1fr; }
  .trust-item:nth-child(2) { border-right:0; }
  .grid-3 { grid-template-columns:1fr 1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width: 620px) {
  .container { width:min(calc(100% - 28px), var(--max)); }
  .topline .container { justify-content:center; }
  .topline span:last-child { display:none; }
  .hero { min-height:auto; }
  .hero-grid { min-height:auto; gap:20px; }
  .hero h1 { font-size:clamp(2.8rem,16vw,4.2rem); }
  .hero-visual { min-height:300px; }
  .hero-visual img { height:300px; }
  .fc-one { left:2px; bottom:22px; }
  .fc-two { right:2px; top:25px; }
  .section { padding:70px 0; }
  .trust-grid, .grid-3, .detail-grid, .form, .footer-grid { grid-template-columns:1fr; }
  .trust-item, .trust-item:not(:first-child) { padding:18px 0; border-right:0; border-bottom:1px solid #e5ebf1; }
  .cta-grid, .footer-bottom { align-items:flex-start; flex-direction:column; }
}
body .site-header { background:rgba(17,17,17,.97); }
body .hero { background:linear-gradient(130deg,#111 0%,#191919 70%,#441215 100%); }
body .dark-section, body .cta-band { background:#d91620; }
body .dark-section .section-copy, body .dark-section .step p, body .cta-band p { color:#fff; }
body .btn-primary { background:#ed1c24; color:#fff; box-shadow:0 10px 30px #ed1c2433; }
body .btn-primary:hover { background:#c91019; }
body .dark-section .btn-primary, body .cta-band .btn-primary { background:#fff; color:#111; }
body .nav-cta { background:#ed1c24; border-color:#ed1c24; }
body .page-hero { background:linear-gradient(125deg,#111,#251416); }
body .topline, body .site-footer { background:#111; }
body .site-header { background:#fff; color:#111; border-bottom:1px solid #e2e7ed; }
body .site-header .nav-links { color:#26364b; }
body .site-header .menu-btn { color:#111; border-color:#d4dbe3; }
body .site-header .company-logo { padding:0; }
@media(max-width:920px) { body .site-header .nav-links { background:#fff; border-bottom:1px solid #e2e7ed; } }


.nav-links ul{display:flex;gap:20px;list-style:none;margin:0;padding:0}.nav-links li{list-style:none}.custom-logo{width:230px;height:auto}.page .section img{max-width:100%}@media(max-width:920px){.nav-links ul{flex-direction:column}}