/* 杭州时越自动化科技有限公司 官网样式
   - design tokens / reset / typography
   - layout (header, hero, sections, footer)
   - components (buttons, cards, tables, media slots)
   - motion (scroll reveal, hover, hero sweep, reduced-motion)
   - responsive + WeChat / mini-program adjustments */

/* Base: design tokens, reset, typography and small utilities.
   Fonts are self-hosted (assets/css/fonts.css, built by tools/fetch_fonts.py);
   system fallbacks keep the site readable before the webfonts load. */

:root {
  --ink: #0b2530;
  --ink-2: #103644;
  --ink-3: #174a5c;
  --accent: #00b8a9;
  --accent-dark: #009e91;
  --accent-soft: #e2f7f4;
  --paper: #ffffff;
  --mist: #f5f8fa;
  --line: #dde5ea;
  --text: #1b2b33;
  --muted: #5d6f79;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 1px 2px rgba(11, 37, 48, .06), 0 12px 32px rgba(11, 37, 48, .07);
  --shadow-lift: 0 2px 4px rgba(11, 37, 48, .08), 0 18px 44px rgba(11, 37, 48, .14);
  --wrap: 1160px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
          "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
          sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.7;
  color: var(--text);
  background: var(--paper);
  text-align: start;
  overflow-wrap: break-word;
  -webkit-tap-highlight-color: rgba(0, 0, 0, .05);
}

/* Chinese body text reads better with slightly looser leading. */
html[lang="zh-Hans"] body { line-height: 1.85; }

img, svg, video { max-width: 100%; height: auto; }

a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 .5em; font-weight: 650; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.mt { margin-block-start: 2rem; }
.lead { font-size: 1.15rem; color: #37505c; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .12em; font-size: .78rem;
  font-weight: 600; color: var(--accent-dark); margin-bottom: .6rem;
}
.tagline { font-weight: 600; color: var(--ink-3); }

.skip-link {
  position: absolute; inset-inline-start: -9999px;
  background: var(--ink); color: #fff; padding: 12px 18px; z-index: 50;
}
.skip-link:focus { inset-inline-start: 12px; inset-block-start: 12px; }

.grid > *, .steps > *, .media-grid > *, .highlights > * { min-width: 0; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Layout: header, navigation, breadcrumbs, hero, sections, stats, footer. */

.site-header {
  position: sticky; inset-block-start: 0; z-index: 30;
  background: rgba(255, 255, 255, .92);
  border-block-end: 1px solid var(--line);
  backdrop-filter: saturate(160%) blur(8px);
  padding-block-start: env(safe-area-inset-top);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}
.header-inner {
  display: flex; align-items: center; gap: 16px;
  min-height: 68px;
  transition: min-height .3s var(--ease);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--accent-dark); display: inline-flex; transition: transform .4s var(--ease); }
.brand:hover .brand-mark { transform: rotate(-8deg) scale(1.08); }
.brand-name { font-size: 1.1rem; letter-spacing: -.02em; }

.primary-nav { margin-inline-start: auto; display: block; }
.primary-nav ul {
  display: flex; flex-wrap: wrap; gap: 20px; justify-content: flex-end;
  list-style: none; margin: 0; padding: 0;
}
.primary-nav a {
  color: var(--text); font-size: .95rem; font-weight: 500; padding-block: 6px;
  position: relative;
}
.primary-nav a::after {
  content: ""; position: absolute; inset-inline-start: 0; inset-block-end: 0;
  width: 100%; height: 2px; background: var(--accent);
  transform: scaleX(0); transform-origin: left center;
  transition: transform .28s var(--ease);
}
[dir="rtl"] .primary-nav a::after { transform-origin: right center; }
.primary-nav a:hover::after { transform: scaleX(1); }
.primary-nav a[aria-current="page"] { color: var(--accent-dark); font-weight: 650; }

.menu-btn {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; align-items: center; justify-content: center;
  cursor: pointer; margin-inline-start: auto;
}
.menu-btn span, .menu-btn span::before, .menu-btn span::after {
  display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}
.menu-btn span { position: relative; }
.menu-btn span::before, .menu-btn span::after { content: ""; position: absolute; inset-inline-start: 0; }
.menu-btn span::before { inset-block-start: -6px; }
.menu-btn span::after { inset-block-start: 6px; }
.nav-toggle:checked ~ .menu-btn span { background: transparent; }
.nav-toggle:checked ~ .menu-btn span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle:checked ~ .menu-btn span::after { transform: translateY(-6px) rotate(-45deg); }

.lang { position: relative; }
.lang > summary {
  list-style: none; cursor: pointer; border: 1px solid var(--line);
  border-radius: 999px; padding: 7px 14px; font-size: .9rem; font-weight: 600;
  background: #fff; color: var(--text);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.lang > summary::-webkit-details-marker { display: none; }
.lang[open] > summary { border-color: var(--accent); color: var(--accent-dark); }
.lang-menu {
  position: absolute; inset-inline-end: 0; inset-block-start: calc(100% + 8px);
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow); list-style: none; margin: 0; padding: 6px;
  min-width: 160px; z-index: 40;
  animation: pop-in .18s var(--ease);
}
.lang-menu a { display: block; padding: 8px 12px; border-radius: 8px; color: var(--text); }
.lang-menu a:hover { background: var(--mist); text-decoration: none; }
.lang-menu a[aria-current="true"] { color: var(--accent-dark); font-weight: 650; }

.scroll-progress {
  position: absolute; inset-block-end: -1px; inset-inline-start: 0;
  height: 2px; width: 100%; background: var(--accent);
  transform: scaleX(var(--progress, 0)); transform-origin: left center;
  transition: transform .08s linear;
}
[dir="rtl"] .scroll-progress { transform-origin: right center; }

/* ---------------------------------------------------------------- crumbs */
.crumbs { padding-block: 14px; font-size: .88rem; color: var(--muted); }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; }
.crumbs li + li::before { content: "/"; margin-inline-end: 8px; color: #b6c4cc; }
.crumbs a { color: var(--muted); }

/* ---------------------------------------------------------------- hero */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 420px at 12% -10%, rgba(0, 184, 169, .28), transparent 60%),
    linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 60%, #0d2d3a 100%);
  color: #eaf4f6; padding-block: clamp(48px, 7vw, 96px);
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 760px); align-items: center;
}
.hero h1 { color: #fff; }
.hero .lead { color: #c6dbe0; }
.hero .eyebrow { color: #6fe0d4; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-block-start: 24px; }
.hero-art { display: flex; justify-content: center; }
.hero-img { width: 100%; max-width: 520px; filter: drop-shadow(0 24px 48px rgba(0, 0, 0, .35)); }

/* ---------------------------------------------------------------- stats */
.stats { background: var(--ink-3); color: #dff0f3; padding-block: 34px; }
.stats ul {
  list-style: none; margin: 0; padding: 0; display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.stat-value { display: block; font-size: 1.9rem; font-weight: 700; color: #fff; }
.stat-label { font-size: .92rem; opacity: .85; }

/* ---------------------------------------------------------------- sections */
.section { padding-block: clamp(40px, 6vw, 80px); }
.section-alt { background: var(--mist); }
.section-head { max-width: 720px; margin-bottom: 32px; }
.page-head { padding-block: clamp(32px, 5vw, 64px) 0; }
.page-head h1 { margin-bottom: .3em; }
.page-head .lead { margin-bottom: 0; }
.page-banner { padding-block: 22px 0; }

.grid { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.link-more { font-weight: 600; display: inline-block; margin-block-start: 12px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.steps li { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.step-index {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%; background: var(--accent-soft);
  color: var(--accent-dark); font-weight: 700; margin-bottom: 12px;
}

/* ---------------------------------------------------------------- cta band */
.cta-band {
  position: relative; overflow: hidden;
  background: linear-gradient(120deg, var(--accent-dark), var(--ink-3));
  color: #fff; padding-block: clamp(40px, 6vw, 72px);
}
.cta-inner { position: relative; z-index: 1; max-width: 720px; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #d6ecef; }

/* ---------------------------------------------------------------- footer */
.site-footer {
  background: var(--ink); color: #c7d9de; padding-block: 56px 28px;
  padding-block-end: calc(28px + env(safe-area-inset-bottom));
}
.footer-grid { display: grid; gap: 32px; grid-template-columns: 1.6fr repeat(4, 1fr); }
.footer-brand { color: #fff; font-weight: 700; font-size: 1.05rem; }
.footer-about p { color: #a9c1c8; }
.footer-contact a { color: #c7d9de; }
.footer-col h2 { font-size: .92rem; text-transform: uppercase; letter-spacing: .1em; color: #7fa3ad; margin-bottom: 12px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: #d5e6ea; font-size: .95rem; }
.footer-bottom {
  border-block-start: 1px solid rgba(255, 255, 255, .12); margin-block-start: 36px;
  padding-block-start: 20px; display: grid; gap: 8px;
}
.footer-bottom p { margin: 0; font-size: .88rem; }
.footer-bottom .muted { color: #8fadb6; }
.footer-bottom a { color: #c7d9de; }
.icp { text-decoration: none; }
.icp:hover { text-decoration: underline; }

/* ---------------------------------------------------------------- language entry */
.lang-entry { padding-block: 80px; text-align: center; }
.lang-list { list-style: none; padding: 0; display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.lang-list a { font-weight: 600; }

/* Components: buttons, cards, products, tables, FAQ, forms, media slots. */

.btn {
  display: inline-block; background: var(--accent); color: #06323a; font-weight: 650;
  padding: 13px 24px; border-radius: 999px; border: 1px solid transparent;
  transition: transform .15s var(--ease), background .15s var(--ease),
              box-shadow .2s var(--ease);
}
.btn:hover {
  background: var(--accent-dark); color: #fff; text-decoration: none;
  transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0, 158, 145, .28);
}
.btn:active { transform: translateY(0); }
.btn-ghost { background: transparent; border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); color: #fff; box-shadow: none; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: var(--accent-soft); color: var(--ink); box-shadow: none; }
.btn-small { padding: 9px 18px; font-size: .92rem; }

/* shine sweep used on the primary calls to action */
.btn-shine { position: relative; overflow: hidden; }
.btn-shine::after {
  content: ""; position: absolute; inset-block: 0; inset-inline-start: -60%;
  width: 45%; background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-18deg); transition: inset-inline-start .6s var(--ease);
}
.btn-shine:hover::after { inset-inline-start: 120%; }

/* ---------------------------------------------------------------- cards */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.section-alt .card { border-color: #e6edf1; }
.card h3 { margin-bottom: .4em; }
.card p { margin-bottom: 0; color: #40565f; }

/* ---------------------------------------------------------------- products */
.product-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 28px; }
.product {
  display: grid; grid-template-columns: .8fr 1.2fr; gap: 28px; align-items: center;
  border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px;
  background: #fff; box-shadow: var(--shadow);
  transition: box-shadow .3s var(--ease);
}
.product:hover { box-shadow: var(--shadow-lift); }
.product-art { background: var(--mist); border-radius: var(--radius); padding: 18px; }
.product-body p { color: #40565f; }

.device-head { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.device-solo { grid-template-columns: 1fr; max-width: 860px; }
.device-art { background: var(--mist); border-radius: var(--radius-lg); padding: 24px; }
.spec-wrap { max-width: 860px; }
.specs { width: 100%; border-collapse: collapse; margin-block: 8px 0; }
.specs th, .specs td {
  text-align: start; padding: 12px 14px; border-block-end: 1px solid var(--line);
  font-weight: 500; vertical-align: top;
}
.specs th { width: 40%; color: var(--muted); font-weight: 500; }
.specs tbody tr { transition: background .2s var(--ease); }
.specs tbody tr:hover { background: #f7fbfc; }
.specs tr:last-child th, .specs tr:last-child td { border-block-end: 0; }
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li { padding-inline-start: 26px; position: relative; margin-bottom: 8px; }
.ticks li::before {
  content: ""; position: absolute; inset-inline-start: 4px; inset-block-start: .55em;
  width: 10px; height: 10px; border-radius: 50%; background: var(--accent);
}

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.split-solo { grid-template-columns: 1fr; max-width: 860px; }
.split-art { background: var(--mist); border-radius: var(--radius-lg); padding: 20px; }

/* ---------------------------------------------------------------- news */
.post-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 24px; }
.post {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
  background: #fff; box-shadow: var(--shadow);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.post:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.post h2 { font-size: 1.3rem; margin-bottom: .3em; }
.post h2 a { color: var(--text); }
.post-date { color: var(--muted); font-size: .88rem; margin-bottom: 4px; }
.article { max-width: 760px; }
.article p { color: #33474f; }

/* ---------------------------------------------------------------- partners / careers */
.highlights { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.highlights li {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.highlights li:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.hl-label { display: block; font-size: .86rem; color: var(--muted); margin-bottom: 6px; }
.hl-value { font-weight: 600; }
.openings td:last-child, .reports td:last-child { text-align: end; }

/* ---------------------------------------------------------------- faq / form */
.faq-wrap { max-width: 760px; }
.faq { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; margin-bottom: 12px; }
.faq summary {
  cursor: pointer; padding: 16px 20px; font-weight: 600; list-style: none;
  transition: color .2s var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: inline-end; color: var(--accent-dark); font-weight: 700; transition: transform .2s var(--ease); }
.faq[open] summary::after { content: "\2212"; }
.faq[open] summary { color: var(--accent-dark); }
.faq p { padding: 0 20px 18px; margin: 0; color: #40565f; animation: fade-up .28s var(--ease); }

.form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow); }
.form .field { margin-bottom: 14px; }
.form label { display: block; font-size: .9rem; font-weight: 600; margin-bottom: 6px; }
.form input, .form textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px;
  font: inherit; background: #fdfefe;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.form input:focus, .form textarea:focus {
  outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 184, 169, .18);
}

/* ---------------------------------------------------------------- media slots
   Every image / video position is a slot. Drop the real file into
   src/assets/media/<slot-id>.<ext> and it renders automatically; a slot with no
   asset is skipped entirely, so pages reflow without any placeholder box. */
.media {
  position: relative; margin: 0; width: 100%;
  aspect-ratio: var(--ratio, 16 / 9);
  overflow: hidden; border-radius: var(--radius); background: #eef3f6;
}
.media-el { width: 100%; height: 100%; object-fit: cover; display: block; border: 0; }
.media-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.media-grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.card .media { margin-bottom: 14px; }
.post-cover { margin-bottom: 12px; }
.page-banner .media { border-radius: var(--radius-lg); }

/* full-bleed background media */
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media .media { height: 100%; aspect-ratio: auto; border-radius: 0; background: #08202a; z-index: 1; }
.hero-media .media-el { opacity: .45; animation: ken-burns 26s var(--ease) infinite alternate; }
.hero-media::after {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(90deg, rgba(6, 26, 34, .88) 0%, rgba(6, 26, 34, .66) 46%, rgba(6, 26, 34, .3) 100%);
}
[dir="rtl"] .hero-media::after {
  background: linear-gradient(270deg, rgba(6, 26, 34, .88) 0%, rgba(6, 26, 34, .66) 46%, rgba(6, 26, 34, .3) 100%);
}
.cta-bg { position: absolute; inset: 0; margin: 0; border-radius: 0; background: transparent; }
.cta-bg .media-el { opacity: .22; }

/* Motion: scroll reveals, hover feedback, hero sweep and reduced-motion safety.
   Everything here is progressive enhancement — with JS disabled or motion
   reduced, the page is fully readable (see .no-js / prefers-reduced-motion). */

/* ---------------------------------------------------------------- keyframes */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pop-in {
  from { opacity: 0; transform: translateY(-6px) scale(.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes ken-burns {
  from { transform: scale(1.02) translate3d(0, 0, 0); }
  to { transform: scale(1.14) translate3d(-1.5%, -1.5%, 0); }
}
@keyframes pulse-soft {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 184, 169, .28); }
  50% { box-shadow: 0 0 0 10px rgba(0, 184, 169, 0); }
}
@keyframes scan-sweep {
  0% { transform: translateX(-40%); opacity: 0; }
  12% { opacity: .5; }
  88% { opacity: .5; }
  100% { transform: translateX(140%); opacity: 0; }
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes shimmer {
  from { background-position: -200% 0; }
  to { background-position: 200% 0; }
}

/* ---------------------------------------------------------------- reveals */
/* Only hide elements when JS is available (html.js is set by an inline script),
   so search engines and no-JS visitors always see the full content. */
.js .js-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform;
}
.js .js-reveal.is-visible { opacity: 1; transform: none; will-change: auto; }

/* ---------------------------------------------------------------- header state */
.site-header.is-stuck {
  box-shadow: 0 6px 24px rgba(11, 37, 48, .12);
  background: rgba(255, 255, 255, .96);
}
.site-header.is-stuck .header-inner { min-height: 58px; }

/* ---------------------------------------------------------------- hero sweep */
.hero-scan {
  position: absolute; inset-block: 0; inset-inline-start: 0; width: 42%;
  pointer-events: none; z-index: 1;
  background: linear-gradient(90deg, transparent, rgba(94, 240, 224, .16), transparent);
  filter: blur(6px);
  animation: scan-sweep 7.5s var(--ease) infinite;
}

/* ---------------------------------------------------------------- hover feedback */
.card:hover .media .media-el,
.product:hover .media .media-el,
.post:hover .media .media-el { transform: scale(1.04); }
.media .media-el { transition: transform .6s var(--ease), opacity .4s var(--ease); }

.step-index { transition: transform .3s var(--ease), background .3s var(--ease); }
.steps li:hover .step-index { transform: scale(1.12) rotate(-6deg); background: var(--accent); color: #fff; }

.link-more {
  position: relative;
  transition: color .2s var(--ease);
}
.link-more::after {
  content: "\2192"; margin-inline-start: 6px; display: inline-block;
  transition: transform .25s var(--ease);
}
[dir="rtl"] .link-more::after { content: "\2190"; transform: rotate(180deg); }
.link-more:hover::after { transform: translateX(4px); }
[dir="rtl"] .link-more:hover::after { transform: rotate(180deg) translateX(4px); }

/* ---------------------------------------------------------------- marquee (optional strip) */
.marquee { overflow: hidden; border-block: 1px solid var(--line); background: #fff; }
.marquee-track {
  display: flex; gap: 48px; width: max-content; padding-block: 14px;
  animation: marquee 26s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-item { font-weight: 600; color: var(--muted); white-space: nowrap; }

/* ---------------------------------------------------------------- reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .js .js-reveal { opacity: 1 !important; transform: none !important; }
  .hero-scan { display: none; }
}

/* Responsive rules plus mobile / WeChat / mini-program web-view adjustments. */

@media (max-width: 1000px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .device-head, .split { grid-template-columns: 1fr; }
  .product { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .menu-btn { display: inline-flex; }
  .primary-nav {
    display: none; position: absolute; inset-inline: 0; inset-block-start: 100%;
    background: #fff; border-block-end: 1px solid var(--line);
    padding: 12px 24px 20px; box-shadow: var(--shadow);
  }
  .nav-toggle:checked ~ .primary-nav { display: block; animation: fade-up .22s var(--ease); }
  .primary-nav ul { flex-direction: column; gap: 2px; justify-content: flex-start; }
  .primary-nav a { display: block; padding-block: 12px; font-size: 1rem; }
  .primary-nav a::after { display: none; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { padding-inline: 16px; }
  h1 { font-size: 1.75rem; }
  .section { padding-block: 36px; }
  .hero { padding-block: 44px; }
  .hero-actions .btn { flex: 1 1 auto; text-align: center; }
  .card, .post, .product { padding: 18px; }
  .btn { padding: 12px 20px; }
  .grid-2, .grid-3, .media-grid, .media-grid-2, .split, .split-solo,
  .device-head, .device-solo { grid-template-columns: 1fr; }
  .specs th { width: 45%; }
  .form { padding: 18px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 380px) {
  .wrap { padding-inline: 14px; }
  .brand-name { font-size: 1rem; }
  .stat-value { font-size: 1.6rem; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media print {
  .site-header, .cta-band, .site-footer, .hero-media, .hero-scan { display: none; }
  .js .js-reveal { opacity: 1 !important; transform: none !important; }
}