/* ==========================================================================
   正易科技 · 无线遥控独立站 样式表
   Design system: industrial-tech / navy + electric blue
   ========================================================================== */

:root {
  --ink: #0f172a;
  --ink-2: #334155;
  --ink-3: #64748b;
  --line: #e2e8f0;
  --line-2: #cbd5e1;
  --bg: #f8fafc;
  --bg-2: #f1f5f9;
  --card: #ffffff;
  --brand: #0369a1;
  --brand-700: #075985;
  --brand-600: #0284c7;
  --brand-050: #e0f2fe;
  --accent: #22d3ee;
  --accent-soft: rgba(34, 211, 238, 0.16);
  --ok: #059669;
  --warn: #d97706;
  --danger: #dc2626;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.18), 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 30px 60px -24px rgba(15, 23, 42, 0.32);
  --max: 1200px;
  --font: "Plus Jakarta Sans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { margin: 0 0 0.5em; line-height: 1.25; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.4vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.25rem); }
h3 { font-size: 1.125rem; }
p { margin: 0 0 1em; color: var(--ink-2); }

ul { margin: 0; padding-left: 1.15em; }
li { color: var(--ink-2); }

button, input, select, textarea { font: inherit; color: inherit; }

:focus-visible {
  outline: 3px solid var(--brand-600);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- layout ---------- */
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.section { padding: 84px 0; }
.section--tight { padding: 56px 0; }
.section--muted { background: var(--bg-2); }
.section--dark { background: var(--ink); color: #e2e8f0; }
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p { color: #cbd5e1; }

.section-head { max-width: 720px; margin-bottom: 40px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--brand); margin-bottom: 14px;
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; background: var(--brand-600); display: inline-block;
}
.section--dark .eyebrow { color: var(--accent); }
.section--dark .eyebrow::before { background: var(--accent); }
.lead { font-size: 1.0625rem; color: var(--ink-2); }

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; border: 1px solid transparent;
  font-weight: 600; font-size: 0.9375rem; cursor: pointer;
  transition: background-color 200ms ease, color 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn--primary { background: var(--brand); color: #fff; box-shadow: 0 8px 20px -10px rgba(3, 105, 161, 0.8); }
.btn--primary:hover { background: var(--brand-700); }
.btn--ghost { background: rgba(255, 255, 255, 0.08); color: #fff; border-color: rgba(255, 255, 255, 0.32); }
.btn--ghost:hover { background: rgba(255, 255, 255, 0.16); }
.btn--outline { background: #fff; color: var(--ink); border-color: var(--line-2); }
.btn--outline:hover { border-color: var(--brand); color: var(--brand); }
.btn--block { width: 100%; }
.btn[disabled] { opacity: 0.62; cursor: not-allowed; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--brand);
  cursor: pointer; transition: color 200ms ease, gap 200ms ease;
}
.link-arrow:hover { color: var(--brand-700); gap: 10px; }
.link-arrow svg { width: 16px; height: 16px; }

/* ---------- header ---------- */
.topbar {
  background: var(--ink); color: #cbd5e1; font-size: 0.8125rem;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 40px; flex-wrap: wrap; }
.topbar a { color: #e2e8f0; }
.topbar a:hover { color: #fff; }
.topbar-list { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.topbar-item { display: inline-flex; align-items: center; gap: 7px; }
.topbar-item svg { width: 14px; height: 14px; color: var(--accent); }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 200ms ease, background-color 200ms ease;
}
.site-header.is-stuck { box-shadow: var(--shadow-sm); background: rgba(255, 255, 255, 0.94); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 72px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px; flex: none;
  background: linear-gradient(140deg, var(--brand) 0%, #0b3d63 55%, var(--accent) 160%);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 1rem;
  letter-spacing: 0.02em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-weight: 800; font-size: 1.0625rem; letter-spacing: -0.02em; }
.brand-sub { font-size: 0.75rem; color: var(--ink-3); letter-spacing: 0.06em; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  padding: 9px 14px; border-radius: 999px; font-size: 0.9375rem; font-weight: 500; color: var(--ink-2);
  transition: color 200ms ease, background-color 200ms ease;
}
.nav a:hover { color: var(--ink); background: var(--bg-2); }
.nav a[aria-current="page"] { color: var(--brand); background: var(--brand-050); font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 10px; }
.header-phone { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink); }
.header-phone svg { width: 18px; height: 18px; color: var(--brand); }

.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-2);
  background: #fff; cursor: pointer; place-items: center;
}
.nav-toggle svg { width: 22px; height: 22px; }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #e2e8f0;
  background: radial-gradient(1100px 520px at 82% -8%, rgba(34, 211, 238, 0.22), transparent 62%),
              radial-gradient(900px 520px at 8% 12%, rgba(3, 105, 161, 0.42), transparent 60%),
              var(--ink);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background-image: linear-gradient(rgba(148, 163, 184, 0.14) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(148, 163, 184, 0.14) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 60% 30%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 60% 30%, #000 0%, transparent 72%);
}
.hero .wrap { position: relative; z-index: 1; padding-top: 78px; padding-bottom: 84px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; }
.hero h1 .hl { color: var(--accent); }
.hero .lead { color: #cbd5e1; font-size: 1.125rem; max-width: 34em; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 30px 0 34px; }

.hero-badges { display: flex; flex-wrap: wrap; gap: 10px 26px; padding-top: 26px; border-top: 1px solid rgba(148, 163, 184, 0.25); }
.hero-badge { display: inline-flex; align-items: center; gap: 9px; font-size: 0.9375rem; color: #e2e8f0; }
.hero-badge svg { width: 18px; height: 18px; color: var(--accent); flex: none; }

.hero-panel {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(226, 232, 240, 0.2);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg);
}
.hero-panel-title { font-size: 0.8125rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 700; margin-bottom: 16px; }
.hero-figure {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4 / 3; display: grid; place-items: center;
}
.hero-figure img { width: 100%; height: 100%; object-fit: cover; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.hero-stat { background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(226, 232, 240, 0.14); border-radius: var(--radius-sm); padding: 12px 14px; }
.hero-stat b { display: block; font-size: 1.25rem; color: #fff; }
.hero-stat span { font-size: 0.8125rem; color: #94a3b8; }

/* ---------- logo / trust strip ---------- */
.trust { background: #fff; border-bottom: 1px solid var(--line); }
.trust .wrap { display: flex; align-items: center; gap: 28px; padding-top: 20px; padding-bottom: 20px; flex-wrap: wrap; }
.trust-label { font-size: 0.8125rem; color: var(--ink-3); font-weight: 600; letter-spacing: 0.04em; }
.trust-items { display: flex; gap: 26px; flex-wrap: wrap; }
.trust-item { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-2); font-size: 0.9375rem; font-weight: 600; }
.trust-item svg { width: 18px; height: 18px; color: var(--brand); }

/* ---------- cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-sm);
  transition: border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
}
.card--hover:hover { border-color: var(--line-2); box-shadow: var(--shadow); transform: translateY(-2px); }
.card-icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-050); color: var(--brand); margin-bottom: 16px;
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 8px; }
.card p:last-child { margin-bottom: 0; }

.cat-card { display: flex; flex-direction: column; gap: 14px; cursor: pointer; }
.cat-thumb { border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-2); aspect-ratio: 16 / 10; }
.cat-thumb img { width: 100%; height: 100%; object-fit: cover; }
.cat-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.cat-count { font-size: 0.8125rem; color: var(--ink-3); }

/* ---------- product cards ---------- */
.product-grid { display: grid; gap: 22px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column; box-shadow: var(--shadow-sm);
  transition: border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
}
.product-card:hover { border-color: var(--line-2); box-shadow: var(--shadow); transform: translateY(-2px); }
.product-media { position: relative; aspect-ratio: 1 / 1; background: var(--bg-2); overflow: hidden; }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 300ms ease; }
.product-card:hover .product-media img { transform: scale(1.04); }
.product-body { padding: 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-cat { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--brand); font-weight: 700; }
.product-name { font-size: 1rem; font-weight: 700; line-height: 1.4; margin: 0; }
.product-name a:hover { color: var(--brand); }
.product-desc { font-size: 0.875rem; color: var(--ink-3); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.product-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 12px; border-top: 1px solid var(--line); }
.price { font-weight: 800; color: var(--ink); }
.price small { font-weight: 500; color: var(--ink-3); font-size: 0.8125rem; }
.price--ask { color: var(--brand); }

.badge-row { position: absolute; top: 12px; left: 12px; display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: 999px;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.02em;
  background: var(--ink); color: #fff;
}
.badge--brand { background: var(--brand); }
.badge--accent { background: #0e7490; }
.badge--sample { background: var(--warn); }
.badge--soft { background: var(--bg-2); color: var(--ink-2); border: 1px solid var(--line); }

/* ---------- product detail ---------- */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.875rem; color: var(--ink-3); padding: 18px 0; flex-wrap: wrap; }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb svg { width: 14px; height: 14px; }

.pdp { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: start; }
.gallery { position: sticky; top: 96px; }
.gallery-main { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; aspect-ratio: 1 / 1; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin-top: 12px; }
.gallery-thumb {
  border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; background: #fff;
  cursor: pointer; aspect-ratio: 1 / 1; padding: 0; transition: border-color 200ms ease;
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb:hover { border-color: var(--line-2); }
.gallery-thumb[aria-selected="true"] { border-color: var(--brand); box-shadow: 0 0 0 2px var(--brand-050); }

.pdp-title { margin-bottom: 10px; }
.pdp-summary { font-size: 1rem; }
.pdp-price {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 16px 18px; margin: 18px 0;
}
.pdp-price b { font-size: 1.5rem; color: var(--brand); }
.pdp-price span { font-size: 0.875rem; color: var(--ink-3); }

.pdp-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; margin: 22px 0; }
.pdp-fact { display: flex; gap: 10px; font-size: 0.9375rem; }
.pdp-fact svg { width: 18px; height: 18px; color: var(--ok); flex: none; margin-top: 3px; }
.pdp-fact span { color: var(--ink-3); }
.pdp-fact strong { color: var(--ink); font-weight: 600; }

.feature-list { display: grid; gap: 10px; margin: 0 0 24px; padding: 0; list-style: none; }
.feature-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink-2); }
.feature-list svg { width: 18px; height: 18px; color: var(--brand); flex: none; margin-top: 3px; }

.pdp-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.pdp-note { font-size: 0.8125rem; color: var(--ink-3); }
.pdp-meta { display: flex; flex-wrap: wrap; gap: 10px 22px; list-style: none; margin: 0 0 22px; padding: 0; }
.pdp-meta li { display: inline-flex; align-items: center; gap: 8px; font-size: 0.875rem; color: var(--ink-2); }
.pdp-meta svg { width: 16px; height: 16px; color: var(--brand); flex: none; }

.spec-table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-table th, .spec-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table th { width: 32%; background: var(--bg-2); color: var(--ink-2); font-weight: 600; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }

.detail-flow { display: grid; gap: 22px; }
.detail-block h3 { margin-top: 0; }
.detail-block img { border-radius: var(--radius); border: 1px solid var(--line); }
.detail-block ul { margin-bottom: 1em; }
.detail-video { width: 100%; max-width: 720px; border-radius: var(--radius); border: 1px solid var(--line); background: #000; }

/* ---------- 工厂实拍 ---------- */
.factory-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.factory-item { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: #fff; }
.factory-item img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.factory-item--wide { grid-column: span 2; }
.factory-item--wide img { aspect-ratio: 16 / 7; }

@media (max-width: 900px) {
  .factory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .factory-item--wide { grid-column: span 2; }
}
@media (max-width: 620px) {
  .factory-grid { grid-template-columns: 1fr; }
  .factory-item--wide { grid-column: span 1; }
}

/* ---------- tabs ---------- */
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 30px; flex-wrap: wrap; }
.tab {
  padding: 12px 18px; border: 0; background: none; cursor: pointer; font-weight: 600; color: var(--ink-3);
  border-bottom: 2px solid transparent; transition: color 200ms ease, border-color 200ms ease;
}
.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] { color: var(--brand); border-bottom-color: var(--brand); }
.tab-panel[hidden] { display: none; }

/* ---------- process / timeline ---------- */
.steps { counter-reset: step; display: grid; gap: 22px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: block; font-family: var(--mono); font-size: 0.875rem; font-weight: 700;
  color: var(--brand); margin-bottom: 12px; letter-spacing: 0.06em;
}

.timeline { position: relative; padding-left: 28px; border-left: 2px solid var(--line); display: grid; gap: 26px; }
.timeline-item { position: relative; }
.timeline-item::before {
  content: ""; position: absolute; left: -36px; top: 8px; width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 3px solid var(--brand);
}
.timeline-year { font-family: var(--mono); font-weight: 700; color: var(--brand); font-size: 0.875rem; letter-spacing: 0.06em; }

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.stat { text-align: center; padding: 24px 16px; border-radius: var(--radius); background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(226, 232, 240, 0.16); }
.stat b { display: block; font-size: clamp(1.75rem, 3vw, 2.5rem); color: #fff; line-height: 1.1; }
.stat span { font-size: 0.875rem; color: #94a3b8; }
/* 浅色卡片内的统计块（关于我们页） */
.card .stat { background: var(--bg-2); border-color: var(--line); }
.card .stat b { color: var(--ink); font-size: clamp(1.5rem, 2.4vw, 2rem); }
.card .stat span { color: var(--ink-3); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 12px; max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; padding: 18px 22px; cursor: pointer;
  font-weight: 600; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq-q svg { width: 18px; height: 18px; color: var(--brand); flex: none; transition: transform 200ms ease; }
.faq-q[aria-expanded="true"] svg { transform: rotate(45deg); }
.faq-a { padding: 0 22px 20px; color: var(--ink-2); }

/* ---------- forms ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 0.875rem; font-weight: 600; color: var(--ink-2); }
.required { color: var(--danger); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid var(--line-2);
  background: #fff; transition: border-color 200ms ease, box-shadow 200ms ease;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: #94a3b8; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-050);
}
.field-hint { font-size: 0.8125rem; color: var(--ink-3); }
.form-status { margin-top: 16px; padding: 14px 16px; border-radius: var(--radius-sm); font-size: 0.9375rem; display: none; }
.form-status[data-state="loading"] { display: block; background: var(--bg-2); color: var(--ink-2); }
.form-status[data-state="success"] { display: block; background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.form-status[data-state="error"] { display: block; background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 32px; align-items: start; }
.contact-list { display: grid; gap: 18px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-item .card-icon { margin: 0; flex: none; }
.contact-item b { display: block; font-size: 0.9375rem; }
.contact-item span, .contact-item a { color: var(--ink-2); }
.contact-item a:hover { color: var(--brand); }

/* ---------- filters ---------- */
.filter-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  padding: 18px 0 26px; border-bottom: 1px solid var(--line); margin-bottom: 34px;
}
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line-2); background: #fff;
  cursor: pointer; font-size: 0.9375rem; font-weight: 500; color: var(--ink-2);
  transition: border-color 200ms ease, color 200ms ease, background-color 200ms ease;
}
.chip:hover { border-color: var(--brand); color: var(--brand); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.search-box { position: relative; min-width: 260px; }
.search-box svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--ink-3); }
.search-box input { width: 100%; padding: 12px 14px 12px 42px; border-radius: 999px; border: 1px solid var(--line-2); background: #fff; }
.search-box input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-050); }

.empty-state { text-align: center; padding: 60px 20px; border: 1px dashed var(--line-2); border-radius: var(--radius); background: #fff; color: var(--ink-3); }
.skeleton { border-radius: var(--radius); background: linear-gradient(90deg, #eef2f7 25%, #e2e8f0 37%, #eef2f7 63%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; min-height: 320px; }
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, #0b3d63 0%, var(--ink) 62%, #06283f 100%);
  color: #fff; border-radius: var(--radius-lg); padding: 46px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: #cbd5e1; margin: 0; max-width: 46em; }
.cta-band .actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: #94a3b8; padding: 60px 0 26px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 34px; }
.site-footer h4 { color: #fff; font-size: 0.9375rem; letter-spacing: 0.04em; margin-bottom: 16px; }
.site-footer a { color: #94a3b8; }
.site-footer a:hover { color: #fff; }
.footer-list { display: grid; gap: 10px; font-size: 0.9375rem; }
.footer-about { font-size: 0.9375rem; line-height: 1.75; }
.footer-bottom {
  margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(148, 163, 184, 0.2);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 0.8125rem;
}
.footer-bottom a { text-decoration: none; }

/* ---------- floating contact ---------- */
.float-cta {
  position: fixed; right: 20px; bottom: 20px; z-index: 40;
  display: flex; flex-direction: column; gap: 10px;
}
.float-btn {
  width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center;
  background: var(--brand); color: #fff; box-shadow: var(--shadow); border: 0; cursor: pointer;
  transition: background-color 200ms ease, transform 200ms ease;
}
.float-btn:hover { background: var(--brand-700); transform: translateY(-2px); }
.float-btn svg { width: 22px; height: 22px; }
.float-btn--ghost { background: #fff; color: var(--ink); border: 1px solid var(--line-2); }

/* ---------- page hero (inner pages) ---------- */
.page-hero {
  background:
    radial-gradient(760px 320px at 88% 0%, rgba(34, 211, 238, 0.18), transparent 60%),
    linear-gradient(180deg, #0f172a, #131f36);
  color: #fff; padding: 56px 0 52px;
}
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p { color: #cbd5e1; max-width: 62em; margin: 0; }
.page-hero .breadcrumb { color: #94a3b8; padding-top: 0; }
.page-hero .breadcrumb a:hover { color: #fff; }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 520ms ease, transform 520ms ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- utilities ---------- */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.center { text-align: center; }
.muted { color: var(--ink-3); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 16px; top: -60px; background: var(--ink); color: #fff;
  padding: 10px 16px; border-radius: 0 0 10px 10px; z-index: 100; transition: top 150ms ease;
}
.skip-link:focus { top: 0; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .nav-toggle { display: grid; }
  .site-header .wrap { gap: 10px; min-height: 64px; }
  .brand-sub { display: none; }
  .brand-mark { width: 36px; height: 36px; border-radius: 10px; font-size: 0.9375rem; }
  .brand-name { font-size: 1rem; }
  .header-actions { gap: 8px; flex: none; }
  .header-actions .btn { padding: 10px 16px; font-size: 0.875rem; }
  .nav {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px 16px 18px;
    box-shadow: var(--shadow); display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 14px; border-radius: var(--radius-sm); }
  .hero-grid, .pdp, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .gallery { position: static; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .header-phone { display: none; }
  .section { padding: 64px 0; }
  .cta-band { padding: 34px 26px; }
}

@media (max-width: 620px) {
  .header-actions .btn { padding: 9px 14px; font-size: 0.8125rem; }
  .nav-toggle { width: 40px; height: 40px; }
  .float-cta { right: 14px; bottom: 14px; }
  .float-btn { width: 46px; height: 46px; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .pdp-facts { grid-template-columns: 1fr; }
  .hero .wrap { padding-top: 52px; padding-bottom: 58px; }
  .hero-stats { grid-template-columns: 1fr; }
  .search-box { min-width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}