/* ============================================================
   ChenXin Computers - Dark Tech Theme (Gigabyte-style)
   Deep navy + electric blue + orange accent
   ============================================================ */

:root {
  --bg: #070b14;
  --bg2: #0b1220;
  --card: #0f1a2c;
  --card2: #132238;
  --border: rgba(59, 130, 246, 0.22);
  --navy: #eef4ff;
  --text: #c7d4e5;
  --muted: #8ba0bb;
  --blue: #3b82f6;
  --blue2: #60a5fa;
  --blue-rgb: 59, 130, 246;
  --accent: #ff7a1a;
  --accent2: #ff9d4d;
  --red: #ef4444;
  --green: #22c55e;
  --radius: 14px;
  --shadow-lg: 0 18px 45px rgba(0, 0, 0, .55);
  --glow: 0 0 24px rgba(59, 130, 246, .35);
}

html { scroll-behavior: smooth; }

body {
  background:
    radial-gradient(1100px 520px at 85% -10%, rgba(59,130,246,.16), transparent 60%),
    radial-gradient(900px 480px at -10% 30%, rgba(255,122,26,.08), transparent 55%),
    radial-gradient(800px 600px at 50% 120%, rgba(37,99,235,.10), transparent 60%),
    var(--bg) fixed;
  color: var(--text);
}

/* subtle circuit texture over whole page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url('../images/circuit-bg.svg') center / cover no-repeat;
  opacity: .10;
  pointer-events: none;
  z-index: 0;
}

main, .topbar, .site-header, footer { position: relative; z-index: 1; }

/* ---------- topbar & header ---------- */
.topbar {
  background: rgba(5, 9, 18, .85);
  border-bottom: 1px solid rgba(59,130,246,.15);
  backdrop-filter: blur(8px);
  color: var(--muted);
}
.site-header {
  background: rgba(8, 13, 24, .88);
  border-bottom: 1px solid rgba(59,130,246,.18);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.logo-badge {
  background: linear-gradient(135deg, #2563eb, #60a5fa);
  box-shadow: 0 0 16px rgba(59,130,246,.5);
  color: #fff;
}
.nav a { color: var(--text); }
.nav a:hover, .nav a.active { color: #fff; }
.btn-nav { background: linear-gradient(135deg, #ff7a1a, #ff9d4d); color: #0b1220 !important; font-weight: 700; }

/* ---------- hero ---------- */
.hero {
  min-height: 540px;
  display: flex;
  align-items: center;
  padding: 90px 0 70px;
  background:
    radial-gradient(700px 420px at 15% 20%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(600px 400px at 90% 85%, rgba(255,122,26,.18), transparent 60%),
    linear-gradient(160deg, #0a1324 0%, #070b14 55%, #0a1324 100%);
  border-bottom: 1px solid rgba(59,130,246,.18);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url('../images/circuit-bg.svg') center / cover no-repeat;
  opacity: .28;
  pointer-events: none;
}
.hero .container { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero-badge {
  display: inline-flex;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid rgba(96,165,250,.35);
  border-radius: 999px;
  background: rgba(37,99,235,.12);
  color: #a5c8ff;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero h1 { font-size: clamp(30px, 4.2vw, 52px); line-height: 1.18; color: #fff; margin-bottom: 18px; }
.hero h1 span {
  background: linear-gradient(90deg, #60a5fa, #22d3ee 60%, #60a5fa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lead { font-size: 17px; line-height: 1.75; color: var(--muted); max-width: 600px; margin-bottom: 26px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.hero-cta .btn-primary {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  box-shadow: 0 10px 26px rgba(37,99,235,.45);
  border: none;
}
.hero-cta .btn-light {
  background: rgba(255,255,255,.06);
  color: #eef4ff;
  border: 1px solid rgba(148,163,184,.35);
  backdrop-filter: blur(6px);
}
.hero-cta .btn-light:hover { background: rgba(255,255,255,.12); }
.hero-stats { display: flex; gap: 34px; flex-wrap: wrap; }
.hero-stats .hs { display: flex; flex-direction: column; }
.hero-stats b { font-size: 26px; color: #fff; }
.hero-stats .hs b:first-child { color: #ff9d4d; }
.hero-stats .hs:nth-child(2) b { color: #60a5fa; }
.hero-stats .hs:nth-child(3) b { color: #22d3ee; }
.hero-stats .hs:nth-child(4) b { color: #4ade80; }
.hero-stats span { font-size: 12.5px; color: var(--muted); margin-top: 2px; }

.hero-visual { display: flex; justify-content: center; }
.hero-card {
  width: 100%;
  max-width: 420px;
  background: rgba(15,26,44,.72);
  border: 1px solid rgba(59,130,246,.28);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 24px 60px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter: blur(10px);
}
.hc-title { font-size: 14px; font-weight: 700; color: #60a5fa; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 16px; }
.hc-row { display: flex; justify-content: space-between; align-items: center; padding: 13px 0; border-bottom: 1px solid rgba(59,130,246,.14); font-size: 14.5px; }
.hc-row:last-child { border-bottom: none; }
.hc-row span { color: var(--text); }
.hc-row b { color: #ff9d4d; font-size: 13.5px; }

/* ---------- sections ---------- */
.section { padding: 70px 0; }
.section.alt { background: rgba(11,18,32,.65); border-top: 1px solid rgba(59,130,246,.12); border-bottom: 1px solid rgba(59,130,246,.12); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 40px; }
.eyebrow { color: #60a5fa; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; font-size: 13px; margin-bottom: 8px; }
.section-head h2 { font-size: clamp(24px, 3vw, 34px); color: #fff; margin-bottom: 10px; }
.section-head p { color: var(--muted); }

/* ---------- cards (glass dark) ---------- */
.pcard, .cat-card, .why-card, .blog-card {
  background: linear-gradient(180deg, rgba(19,34,56,.9), rgba(12,22,38,.94));
  border: 1px solid rgba(59,130,246,.18);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}
.pcard:hover, .cat-card:hover, .why-card:hover, .blog-card:hover {
  transform: translateY(-5px);
  border-color: rgba(96,165,250,.6);
  box-shadow: 0 18px 44px rgba(0,0,0,.55), 0 0 24px rgba(59,130,246,.18);
}
.cat-card h3 { color: #fff; }
.cat-card p { color: var(--muted); }
.cat-icon { background: rgba(37,99,235,.15); border: 1px solid rgba(59,130,246,.3); }
.pcard-name, .blog-card h3 { color: #eef4ff; }
.pcard-desc, .blog-card p { color: var(--muted); }
.pcard-cat, .blog-card-cat { color: #60a5fa; }
.pcard-price { color: #ff9d4d !important; }
.pcard-moq { color: var(--muted); }
.pcard-img { background: #0b1322; }
.why-card h3 { color: #fff; }
.why-card p { color: var(--muted); }
.w-icon { background: rgba(37,99,235,.14); border: 1px solid rgba(59,130,246,.3); }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(600px 300px at 20% 0%, rgba(37,99,235,.35), transparent 60%),
    radial-gradient(600px 300px at 85% 100%, rgba(255,122,26,.25), transparent 60%),
    linear-gradient(120deg, #0c1a33, #101b30);
  border-top: 1px solid rgba(59,130,246,.2);
  border-bottom: 1px solid rgba(59,130,246,.2);
}
.cta-band h2 { color: #fff; }
.cta-band p { color: var(--muted); }
.cta-band .btn-light {
  background: linear-gradient(135deg, #ff7a1a, #ff9d4d);
  color: #0b1220;
  font-weight: 700;
  border: none;
}

/* ---------- page hero (inner pages) ---------- */
.page-hero {
  padding: 70px 0 60px;
  background:
    radial-gradient(700px 320px at 20% 0%, rgba(37,99,235,.22), transparent 60%),
    radial-gradient(600px 320px at 85% 100%, rgba(255,122,26,.14), transparent 60%),
    linear-gradient(160deg, #0a1324, #070b14);
  border-bottom: 1px solid rgba(59,130,246,.16);
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url('../images/circuit-bg.svg') center / cover no-repeat;
  opacity: .22;
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(26px, 3.4vw, 40px); color: #fff; margin: 8px 0 10px; }
.page-hero p { color: var(--muted); max-width: 640px; font-size: 15.5px; }
.page-hero .breadcrumb { color: #8ba0bb; }
.page-hero .breadcrumb a { color: #60a5fa; }

/* ---------- inner page content ---------- */
.breadcrumb { color: var(--muted); }
.breadcrumb a { color: #60a5fa; }
.pd-price { color: #ff9d4d !important; }
.pd-cat { color: #60a5fa; }
.pd-name, .article h1, .article h2, h1, h2, h3 { color: #fff; }
.pd-short, .article p, .article li { color: var(--text); }
.pd-meta .tag { background: rgba(37,99,235,.14); border: 1px solid rgba(59,130,246,.3); color: #a5c8ff; }
.spec-table th { background: rgba(37,99,235,.14); color: #dbeafe; border-color: rgba(59,130,246,.2); }
.spec-table td { color: var(--text); border-color: rgba(59,130,246,.14); }
.inquiry-box { background: rgba(15,26,44,.8); border: 1px solid rgba(59,130,246,.22); }
.inquiry-box .sub { color: var(--muted); }
.form-group label { color: #dbeafe; }
.form-group input, .form-group textarea, .form-group select {
  background: #0b1424;
  border-color: rgba(59,130,246,.25);
  color: #eef4ff;
}
.form-group input:focus, .form-group textarea:focus { border-color: #3b82f6; box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.chip { background: rgba(15,26,44,.85); border-color: rgba(59,130,246,.25); color: var(--text); }
.chip.active { background: linear-gradient(135deg, #2563eb, #3b82f6); border-color: transparent; color: #fff; }
.empty-state { color: var(--muted); }
.contact-row { background: rgba(15,26,44,.8); border: 1px solid rgba(59,130,246,.18); }
.contact-row .c-ico { background: rgba(37,99,235,.16); color: #60a5fa; }
.article-meta, .blog-card-date { color: #8ba0bb; }

/* ---------- buttons ---------- */
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  border: none;
  box-shadow: 0 8px 20px rgba(37,99,235,.35);
}
.btn-primary:hover { box-shadow: 0 12px 28px rgba(37,99,235,.5); }
.btn-outline { color: #93c5fd; border-color: rgba(96,165,250,.45); }
.btn-ghost { color: var(--text); border-color: rgba(148,163,184,.3); }

/* ---------- footer ---------- */
.site-footer { background: #04070d; border-top: 1px solid rgba(59,130,246,.16); }
.site-footer a, .site-footer span { color: #9fb3cc; }
.site-footer h4 { color: #e6edf7; }
.f-bottom { color: #5f7691; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; gap: 28px; }
  .hero { padding: 60px 0 50px; }
  .hero-visual { order: 2; }
}