:root {
  --bg: #eef3f5;
  --bg-soft: #f7f5f1;
  --surface: #ffffff;
  --surface-alt: #111820;
  --surface-deep: #0b1116;
  --text: #0e1418;
  --text-soft: #546471;
  --text-inverse: #eef6fb;
  --line: rgba(14, 20, 24, 0.12);
  --line-strong: rgba(255, 255, 255, 0.12);
  --brand: #169089;
  --brand-strong: #0d6b67;
  --accent: #d98a12;
  --accent-soft: rgba(217, 138, 18, 0.14);
  --shadow: 0 18px 50px rgba(6, 20, 28, 0.08);
  --shadow-heavy: 0 24px 70px rgba(0, 0, 0, 0.22);
  --radius: 8px;
  --container: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  padding-bottom: 104px;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.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: 12px;
  top: -40px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.band {
  padding: 88px 0;
}

.band-dark {
  color: var(--text-inverse);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    linear-gradient(135deg, #0b1116 0%, #111c24 56%, #0a1015 100%);
}

.band-soft {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.7)),
    linear-gradient(135deg, #f6f5f1 0%, #eef3f6 100%);
}

.band-ink {
  color: var(--text-inverse);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    linear-gradient(135deg, #101820 0%, #0e141a 100%);
}

.band-light {
  background: #f7fafb;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 250, 252, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(14, 20, 24, 0.08);
}

.site-header.is-scrolled {
  box-shadow: 0 8px 30px rgba(14, 20, 24, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  flex: 0 0 auto;
  width: 126px;
  max-height: 52px;
  height: auto;
  object-fit: contain;
}

.brand-mark {
  flex: 0 0 auto;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-copy strong {
  font-size: 1rem;
  line-height: 1.2;
}

.brand-copy small {
  margin-top: 2px;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.menu-toggle {
  display: none;
  flex: 0 0 44px;
  flex-direction: column;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(14, 20, 24, 0.18);
  border-radius: var(--radius);
  background: #fff;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 0.95rem;
}

.site-nav a {
  color: #1a242c;
  transition: color 0.18s ease, opacity 0.18s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--brand);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius);
  background: var(--brand);
  color: #fff !important;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(22, 144, 137, 0.22);
}

.nav-cta:hover {
  background: var(--brand-strong);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.lang-btn {
  min-height: 34px;
  padding: 0 12px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease;
}

.lang-btn:hover,
.lang-btn.is-active {
  background: var(--surface-alt);
  color: #fff;
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: calc(100svh - 76px);
  padding: clamp(78px, 10vw, 126px) 0 clamp(132px, 14vw, 172px);
  overflow: hidden;
  color: #fff;
  background: #0b1116;
}

.hero-showcase-image {
  position: absolute;
  inset: 0;
  width: 112%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: 42% center;
  transform: translateX(-10%);
}

.hero-showcase-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(270deg, rgba(6, 10, 14, 0.82) 0%, rgba(6, 10, 14, 0.38) 31%, rgba(6, 10, 14, 0.08) 60%, rgba(6, 10, 14, 0.03) 100%),
    linear-gradient(0deg, rgba(6, 10, 14, 0.58) 0%, rgba(6, 10, 14, 0.04) 48%, rgba(6, 10, 14, 0.1) 100%);
}

.hero-showcase-content {
  position: relative;
  z-index: 1;
  max-width: 500px;
  margin-left: auto;
  margin-right: clamp(12px, 1.6vw, 28px);
  padding: clamp(22px, 2.8vw, 34px);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(7, 12, 16, 0.62);
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 42px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  letter-spacing: 0;
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-copy h1,
.hero-showcase-content h1,
.section-head h2,
.about-copy h2,
.app-copy h2,
.section-head--contact h2 {
  margin: 0;
  line-height: 1.08;
  font-weight: 700;
}

.hero-copy h1,
.hero-showcase-content h1 {
  max-width: 11em;
  font-size: clamp(3.25rem, 6.5vw, 5.35rem);
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.hero-showcase-content h1 {
  max-width: 100%;
  font-size: clamp(3rem, 4.8vw, 4.55rem);
}

.hero-slogan {
  margin: 18px 0 0;
  max-width: 34rem;
  font-size: 1.15rem;
  color: rgba(238, 246, 251, 0.92);
}

.hero-lead {
  margin: 16px 0 0;
  max-width: 37rem;
  color: rgba(238, 246, 251, 0.76);
}

.hero-showcase-content .hero-slogan,
.hero-showcase-content .hero-lead {
  max-width: 100%;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  color: var(--accent);
  font-weight: 700;
}

.hero-link:hover {
  color: #f3a93a;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
}

.hero-cta {
  border: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: var(--radius);
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(22, 144, 137, 0.25);
  cursor: pointer;
}

.hero-cta:hover {
  background: var(--brand-strong);
}

.hero-bullets {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.hero-bullets li {
  min-height: 132px;
  padding: 18px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.11);
}

.hero-bullets strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.02rem;
  color: #fff;
}

.hero-bullets span {
  color: rgba(238, 246, 251, 0.72);
}

.visual-shell {
  padding: 18px;
  border-radius: calc(var(--radius) + 2px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03)),
    linear-gradient(135deg, rgba(13, 19, 24, 0.96), rgba(20, 30, 38, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-heavy);
}

.hero-image,
.app-image {
  width: 100%;
  height: auto;
}

.hero-photo {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  background: #f3f6f7;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head h2,
.about-copy h2,
.app-copy h2,
.section-head--contact h2 {
  position: relative;
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  padding: 10px 16px 12px;
  border-left: 5px solid var(--accent);
  border-bottom: 1px solid rgba(22, 144, 137, 0.22);
  background: linear-gradient(90deg, rgba(22, 144, 137, 0.12), rgba(217, 138, 18, 0.08) 58%, rgba(255, 255, 255, 0));
  font-size: clamp(2.45rem, 4.2vw, 3.2rem);
  overflow-wrap: anywhere;
}

.section-head p,
.about-copy p,
.app-copy p {
  margin: 12px 0 0;
  color: var(--text-soft);
}

.band-dark .section-head p,
.band-ink .section-head p,
.band-dark .app-copy p,
.band-ink .about-copy p {
  color: rgba(238, 246, 251, 0.74);
}

.band-dark .section-head h2,
.band-ink .section-head h2,
.band-dark .app-copy h2,
.band-ink .about-copy h2 {
  border-bottom-color: rgba(255, 255, 255, 0.16);
  background: linear-gradient(90deg, rgba(22, 144, 137, 0.28), rgba(217, 138, 18, 0.14) 58%, rgba(255, 255, 255, 0.03));
}

.product-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(340px, 0.96fr);
  gap: 24px;
  align-items: start;
  margin-top: 24px;
}

.product-gallery {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 0.32fr);
  gap: 16px;
  margin: 0 0 24px;
}

.product-gallery-main {
  position: relative;
  margin: 0;
  min-height: 560px;
  overflow: hidden;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.product-gallery-main img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  padding: 30px;
  background:
    radial-gradient(circle at 28% 22%, rgba(22, 144, 137, 0.13), transparent 32%),
    linear-gradient(135deg, #f8fafb 0%, #e6edf1 100%);
  transition: opacity 0.18s ease;
}

.product-gallery-caption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  max-width: 520px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(12, 18, 23, 0.86);
  color: #fff;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(10px);
}

.product-gallery-caption span {
  display: inline-flex;
  margin-bottom: 5px;
  color: #75d6d0;
  font-size: 0.84rem;
  font-weight: 800;
}

.product-gallery-caption strong {
  display: block;
  line-height: 1.2;
  font-size: 1.28rem;
}

.product-gallery-caption p {
  margin: 7px 0 0;
  color: rgba(238, 246, 251, 0.78);
}

.product-gallery-thumbs {
  display: grid;
  grid-template-rows: repeat(6, minmax(0, 1fr));
  gap: 10px;
}

.gallery-thumb {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 84px;
  padding: 7px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  text-align: left;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.gallery-thumb:hover,
.gallery-thumb:focus-visible,
.gallery-thumb.is-active {
  border-color: rgba(22, 144, 137, 0.5);
  box-shadow: 0 12px 28px rgba(10, 33, 42, 0.12);
  transform: translateY(-1px);
}

.gallery-thumb.is-active {
  background: #fff;
}

.gallery-thumb img {
  width: 76px;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 5px;
  background:
    linear-gradient(135deg, #f8fafb, #e4ebef);
}

.gallery-thumb span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.product-angle-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) repeat(2, minmax(0, 0.8fr));
  gap: 16px;
  margin: 0 0 24px;
}

.product-angle-card {
  position: relative;
  min-height: 228px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.product-angle-card--wide {
  grid-row: span 2;
  min-height: 472px;
}

.product-angle-card img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: 12px;
  background:
    radial-gradient(circle at 20% 18%, rgba(22, 144, 137, 0.08), transparent 34%),
    #fff;
}

.product-angle-card--wide img {
  aspect-ratio: 4 / 5;
}

.product-angle-card figcaption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 7px 11px;
  border-radius: 6px;
  background: rgba(17, 24, 32, 0.9);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 800;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.info-card,
.spec-panel,
.value-card,
.timeline-card,
.contact-card,
.download-card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.info-card {
  min-height: 160px;
  padding: 22px;
  background: #fff;
  box-shadow: var(--shadow);
}

.feature-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  margin-bottom: 16px;
  border-radius: 6px;
  background: #e6ecef;
}

.feature-thumb--contain {
  object-fit: contain;
  padding: 6px;
  background: #101820;
}

.feature-thumb--icon {
  object-fit: contain;
  padding: 18px;
  border: 1px solid rgba(14, 20, 24, 0.08);
  background: #fff;
}

.feature-thumb--wheel {
  object-fit: cover;
  object-position: center;
  background: #e6ecef;
}

.feature-thumb--battery {
  object-fit: contain;
  padding: 0;
  background: #dff4ff;
}

.info-card h3,
.spec-panel h3,
.value-card h3,
.timeline-card h3 {
  margin: 0;
  line-height: 1.2;
  font-size: 1.12rem;
}

.info-card h3 {
  padding-left: 10px;
  border-left: 4px solid var(--brand);
}

.info-card p,
.value-card p,
.timeline-card p,
.spec-note,
.contact-copy {
  margin: 10px 0 0;
  color: var(--text-soft);
}

.spec-panel {
  padding: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}

.spec-panel--focus {
  background:
    linear-gradient(180deg, rgba(22, 144, 137, 0.08), rgba(255, 255, 255, 0) 42%),
    #fff;
  border-color: rgba(22, 144, 137, 0.2);
}

.spec-panel--focus h3 {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 6px;
  background: var(--surface-alt);
  color: #fff;
  font-size: 1.28rem;
}

.spec-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.spec-highlights span {
  display: grid;
  gap: 2px;
  padding: 14px;
  border-radius: 6px;
  border: 1px solid rgba(22, 144, 137, 0.18);
  background: rgba(247, 250, 252, 0.92);
}

.spec-highlights strong {
  line-height: 1.15;
  color: var(--brand-strong);
  font-size: 1.18rem;
}

.spec-highlights small {
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.table-wrap {
  margin-top: 18px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.96rem;
}

th,
td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(14, 20, 24, 0.08);
  vertical-align: top;
}

th {
  width: 38%;
  background: #f7fafc;
  color: #1a242c;
  font-weight: 700;
}

td {
  color: var(--text-soft);
}

tr:last-child th,
tr:last-child td {
  border-bottom: 0;
}

.spec-note {
  margin-top: 14px;
}

.performance-showcase {
  margin-top: 24px;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(circle at 18% 20%, rgba(22, 144, 137, 0.22), transparent 30%),
    linear-gradient(135deg, #101820 0%, #131f28 48%, #0d141a 100%);
  color: var(--text-inverse);
  box-shadow: var(--shadow-heavy);
}

.performance-head {
  display: grid;
  grid-template-columns: minmax(0, 0.62fr) minmax(0, 1fr);
  gap: 16px;
  align-items: end;
  margin-bottom: 16px;
}

.performance-head span {
  color: #75d6d0;
  font-size: 0.86rem;
  font-weight: 800;
}

.performance-head h3 {
  grid-column: 1;
  margin: 4px 0 0;
  line-height: 1.15;
  font-size: clamp(1.75rem, 3vw, 2.45rem);
}

.performance-head p {
  grid-column: 2;
  grid-row: 1 / span 2;
  margin: 0;
  color: rgba(238, 246, 251, 0.72);
}

.performance-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  gap: 16px;
}

.performance-card {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
}

.performance-card--wide {
  grid-row: span 2;
}

.performance-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #0b1116;
}

.performance-card--wide img {
  aspect-ratio: 16 / 11;
}

.performance-card > div {
  padding: 16px;
}

.performance-card h4 {
  margin: 0;
  line-height: 1.22;
  font-size: 1.12rem;
}

.performance-card p {
  margin: 8px 0 0;
  color: rgba(238, 246, 251, 0.72);
}

.case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
  grid-auto-rows: minmax(0, auto);
  gap: 16px;
  margin-top: 28px;
}

.case-card,
.guide-card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.case-card--wide {
  grid-row: span 2;
}

.case-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.case-grid--two .case-card--wide {
  grid-row: auto;
}

.case-grid--two .case-card img,
.case-grid--two .case-card--wide img {
  aspect-ratio: 3 / 4;
}

.case-album {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 340px);
  gap: 16px;
  margin-top: 28px;
  padding: 2px 2px 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.case-album .case-card {
  scroll-snap-align: start;
}

.case-album .case-card img {
  aspect-ratio: 16 / 10;
}

.case-album .case-card > div {
  padding: 14px 16px 16px;
}

.case-album .case-card h3 {
  font-size: 1rem;
}

.case-album .case-card p {
  display: -webkit-box;
  min-height: 3.1em;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.case-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #e6ecef;
}

.case-card--wide img {
  aspect-ratio: 16 / 11;
}

.case-card > div {
  padding: 18px;
}

.case-card span {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--brand-strong);
  font-size: 0.88rem;
  font-weight: 700;
}

.case-card h3,
.guide-card h3 {
  margin: 0;
  line-height: 1.25;
  font-size: 1.06rem;
}

.case-card p,
.guide-card p {
  margin: 9px 0 0;
  color: var(--text-soft);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.guide-card {
  padding: 18px;
}

.guide-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin-bottom: 16px;
  border-radius: 6px;
  background: #e6ecef;
}

.guide-card--download {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 270px;
  background: var(--surface-alt);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.1);
}

.guide-card--download p {
  color: rgba(238, 246, 251, 0.72);
}

.guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
  padding-top: 18px;
}

.guide-actions a,
.guide-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 6px;
  font-weight: 700;
}

.guide-actions a {
  background: #fff;
  color: var(--surface-alt);
}

.guide-actions button {
  border: 0;
  background: var(--accent);
  color: #15110a;
  cursor: pointer;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.82fr);
  gap: 28px;
  align-items: start;
}

.about-copy {
  max-width: 48rem;
}

.value-stack {
  display: grid;
  gap: 16px;
}

.value-card {
  padding: 22px;
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.12);
}

.value-card p {
  color: rgba(238, 246, 251, 0.72);
}

.certificate-section {
  margin-top: 52px;
}

.section-head--compact {
  margin-bottom: 22px;
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.certificate-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}

.certificate-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top center;
  margin-bottom: 14px;
  border-radius: 6px;
  background: #eef3f5;
}

.certificate-card h3 {
  margin: 0;
  line-height: 1.25;
  font-size: 1.02rem;
}

.certificate-card p {
  margin: 8px 0 0;
  color: rgba(238, 246, 251, 0.72);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.service-media-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) repeat(2, minmax(230px, 0.72fr));
  gap: 18px;
  align-items: stretch;
}

.video-card,
.service-visual-card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.video-card {
  display: flex;
  flex-direction: column;
}

.video-frame {
  position: relative;
  flex: 1;
  min-height: 320px;
  background: #0b1116;
}

.video-frame video {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.video-frame video:not([src]) {
  display: none;
}

.video-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 8px;
  padding: 24px;
  color: #fff;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(11, 17, 22, 0.08), rgba(11, 17, 22, 0.62)),
    url("assets/images/machine-with-board.png") center / contain no-repeat,
    #0b1116;
}

.video-card.has-video .video-placeholder {
  display: none;
}

.video-placeholder strong {
  font-size: 1.2rem;
}

.video-placeholder span {
  color: rgba(238, 246, 251, 0.76);
}

.video-actions {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--line);
}

.video-lang-btn {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
}

.video-lang-btn.is-active {
  border-color: rgba(22, 144, 137, 0.3);
  background: rgba(22, 144, 137, 0.1);
  color: var(--brand-strong);
}

.service-visual-card {
  padding: 18px;
}

.service-visual-card img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  margin-bottom: 16px;
  border-radius: 6px;
  background: #e6ecef;
}

.service-visual-card h3 {
  margin: 0;
  line-height: 1.2;
  font-size: 1.05rem;
}

.timeline-card {
  padding: 24px;
  background: #fff;
  box-shadow: var(--shadow);
}

.step-list,
.service-list {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--text-soft);
}

.step-list li + li,
.service-list li + li {
  margin-top: 10px;
}

.app-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(300px, 1.08fr);
  gap: 28px;
  align-items: center;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.download-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 104px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.download-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.08);
}

.download-card strong {
  font-size: 1rem;
}

.download-card span {
  color: rgba(238, 246, 251, 0.7);
}

.app-visual {
  justify-self: end;
  width: min(100%, 520px);
}

.qr-panel {
  display: grid;
  justify-items: center;
  gap: 12px;
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow-heavy);
  text-align: center;
}

.qr-image {
  width: min(100%, 260px);
  aspect-ratio: 1;
  object-fit: contain;
  padding: 12px;
  border-radius: 6px;
  background: #fff;
}

.qr-panel strong {
  color: #fff;
  font-size: 1.08rem;
}

.qr-panel span {
  max-width: 22rem;
  color: rgba(238, 246, 251, 0.74);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.62fr) minmax(0, 1.38fr);
  gap: 24px;
  align-items: start;
}

.contact-lead {
  display: grid;
  gap: 14px;
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid rgba(22, 144, 137, 0.18);
  background:
    linear-gradient(180deg, rgba(22, 144, 137, 0.08), rgba(255, 255, 255, 0) 56%),
    #fff;
  box-shadow: var(--shadow);
}

.contact-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.contact-card {
  min-height: 132px;
  padding: 18px;
  background: #fff;
  box-shadow: var(--shadow);
}

.contact-card span {
  display: block;
  color: var(--brand);
  font-size: 0.92rem;
  font-weight: 700;
}

.contact-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  word-break: break-word;
}

.contact-card--qr {
  grid-row: span 2;
}

.contact-card--qr img {
  width: min(100%, 176px);
  aspect-ratio: 1;
  object-fit: contain;
  margin-top: 14px;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #fff;
}

.contact-qr-panel {
  display: grid;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid rgba(14, 20, 24, 0.08);
}

.contact-qr-panel span {
  color: var(--brand);
  font-size: 0.92rem;
  font-weight: 800;
}

.contact-qr-panel img {
  width: 136px;
  aspect-ratio: 1;
  object-fit: contain;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #fff;
}

.contact-qr-panel strong {
  max-width: 24rem;
  font-size: 0.94rem;
  line-height: 1.55;
}

.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  margin-top: 20px;
  padding: 0 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(22, 144, 137, 0.2);
  background: rgba(22, 144, 137, 0.08);
  color: var(--brand-strong);
  cursor: pointer;
  transition: background 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}

.copy-button:hover {
  transform: translateY(-1px);
  background: rgba(22, 144, 137, 0.12);
  border-color: rgba(22, 144, 137, 0.3);
}

.copy-button.is-copied {
  background: rgba(217, 138, 18, 0.12);
  border-color: rgba(217, 138, 18, 0.28);
  color: #8f5b0a;
}

.lead-dock {
  position: fixed;
  left: 50%;
  z-index: 80;
  bottom: 18px;
  display: grid;
  grid-template-columns: minmax(210px, 0.78fr) minmax(0, 1.22fr);
  align-items: center;
  gap: 18px;
  width: min(1160px, calc(100% - 36px));
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(11, 17, 22, 0.94);
  color: #fff;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.26);
  transform: translateX(-50%);
  backdrop-filter: blur(16px);
}

.lead-dock-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.lead-dock-copy strong {
  font-size: 1rem;
  line-height: 1.25;
}

.lead-dock-copy span {
  color: rgba(238, 246, 251, 0.72);
  font-size: 0.9rem;
}

.lead-quick-form {
  display: grid;
  grid-template-columns: minmax(96px, 0.7fr) minmax(140px, 1fr) auto auto;
  align-items: center;
  gap: 10px;
}

.lead-quick-form input:not(.form-hp) {
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font: inherit;
}

.lead-quick-form input::placeholder {
  color: rgba(238, 246, 251, 0.64);
}

.lead-quick-form input:focus {
  outline: 2px solid rgba(22, 144, 137, 0.34);
  border-color: rgba(22, 144, 137, 0.7);
}

.lead-quick-form button {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
}

.lead-quick-form button[type="submit"] {
  border: 0;
  background: var(--accent);
  color: #15110a;
}

.lead-quick-form button[type="submit"]:disabled {
  opacity: 0.7;
  cursor: wait;
}

.lead-dock-more {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.lead-dock-status {
  grid-column: 1 / -1;
  min-height: 1.2em;
  margin: -4px 0 0;
  color: rgba(238, 246, 251, 0.72);
  font-size: 0.86rem;
}

.lead-modal[hidden] {
  display: none;
}

.lead-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 24px;
}

.lead-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 8, 12, 0.58);
  backdrop-filter: blur(4px);
}

.lead-dialog {
  position: relative;
  width: min(680px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 30px;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-heavy);
}

.lead-dialog h2 {
  margin: 0;
  line-height: 1.18;
  font-size: 1.55rem;
}

.lead-dialog > p:not(.eyebrow) {
  margin: 10px 0 0;
  color: var(--text-soft);
}

.lead-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

.lead-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.lead-form label {
  display: grid;
  gap: 7px;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

.lead-form input {
  min-height: 44px;
  padding: 0 12px;
}

.lead-form textarea {
  min-height: 110px;
  padding: 10px 12px;
  resize: vertical;
}

.lead-form input:focus,
.lead-form textarea:focus {
  outline: 2px solid rgba(22, 144, 137, 0.24);
  border-color: rgba(22, 144, 137, 0.58);
}

.lead-form-full,
.lead-submit,
.lead-status {
  grid-column: 1 / -1;
}

.lead-submit {
  min-height: 48px;
  border: 0;
  border-radius: var(--radius);
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.lead-submit:disabled {
  opacity: 0.68;
  cursor: wait;
}

.lead-status {
  min-height: 1.5em;
  margin: 0;
  color: var(--text-soft);
}

.lead-status[data-status="success"] {
  color: var(--brand-strong);
}

.lead-status[data-status="error"] {
  color: #b42318;
}

.form-hp {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0;
  pointer-events: none;
}

body.has-modal {
  overflow: hidden;
}

.site-footer {
  padding: 24px 0 32px;
  background: #f7fafb;
  border-top: 1px solid rgba(14, 20, 24, 0.08);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--text-soft);
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: var(--brand);
  font-weight: 700;
}

body.lang-en .hero-copy h1,
body.lang-en .hero-showcase-content h1 {
  font-size: clamp(2.85rem, 5.2vw, 4.55rem);
}

body.lang-en .section-head h2,
body.lang-en .about-copy h2,
body.lang-en .app-copy h2,
body.lang-en .section-head--contact h2 {
  font-size: clamp(2.05rem, 3.2vw, 2.65rem);
}

body.lang-en .brand-copy small {
  font-size: 0.78rem;
}

html.js [data-reveal] {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

html:not(.js) [data-reveal] {
  opacity: 1;
  transform: none;
}

@media (max-width: 1100px) {
  .hero-grid,
  .product-grid,
  .about-grid,
  .app-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .product-gallery,
  .performance-head,
  .performance-grid,
  .service-media-grid {
    grid-template-columns: 1fr;
  }

  .product-angle-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-angle-card--wide {
    grid-column: 1 / -1;
    grid-row: auto;
    min-height: 360px;
  }

  .product-gallery-main,
  .product-gallery-main img {
    min-height: 460px;
  }

  .product-gallery-thumbs {
    grid-template-rows: none;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .gallery-thumb {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .gallery-thumb img {
    width: 58px;
  }

  .performance-head h3,
  .performance-head p {
    grid-column: auto;
    grid-row: auto;
  }

  .app-visual {
    justify-self: start;
    width: min(100%, 560px);
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .case-grid {
    grid-template-columns: 1fr;
  }

  .case-card--wide {
    grid-row: auto;
  }

  .guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .certificate-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lead-dock {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .lead-quick-form {
    grid-template-columns: minmax(96px, 0.65fr) minmax(140px, 1fr) auto;
  }

  .lead-dock-more {
    display: none;
  }
}

@media (max-width: 920px) {
  .menu-toggle {
    display: flex !important;
    margin-left: auto;
    position: relative;
    z-index: 120;
  }

  .site-nav {
    position: absolute;
    left: 24px;
    right: 24px;
    top: calc(100% + 10px);
    display: grid;
    gap: 0;
    padding: 14px;
    border-radius: calc(var(--radius) + 2px);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.18s ease, transform 0.18s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 12px 10px;
    border-radius: 6px;
  }

  .site-nav a:hover {
    background: rgba(22, 144, 137, 0.08);
  }

  .nav-cta {
    margin-top: 6px;
    justify-content: center;
  }

  .lang-switch {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: 8px;
  }

  .hero-copy h1,
  .hero-showcase-content h1 {
    font-size: 2.8rem;
  }

  .section-head h2,
  .about-copy h2,
  .app-copy h2,
  .section-head--contact h2 {
    font-size: 2.1rem;
  }

  .hero-bullets {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    align-items: flex-start;
  }

  .feature-grid,
  .spec-highlights,
  .contact-details {
    grid-template-columns: 1fr;
  }

  .contact-card--qr {
    grid-row: auto;
  }

  .download-grid {
    grid-template-columns: 1fr;
  }

  .guide-grid {
    grid-template-columns: 1fr;
  }

  .certificate-grid {
    grid-template-columns: 1fr;
  }

  .lead-quick-form {
    grid-template-columns: 1fr 1fr;
  }

  .lead-quick-form button[type="submit"] {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  body {
    padding-bottom: 166px;
  }

  .container {
    width: min(var(--container), calc(100% - 32px));
  }

  .band {
    padding: 66px 0;
  }

  .header-inner {
    min-height: 68px;
  }

  .brand-copy strong {
    font-size: 0.96rem;
  }

  .brand-logo {
    width: 104px;
    max-height: 44px;
  }

  .hero {
    min-height: calc(100svh - 68px);
    padding: 70px 0 178px;
    align-items: end;
  }

  .hero-showcase-image {
    width: 100%;
    object-position: 52% center;
    transform: none;
  }

  .hero-showcase-overlay {
    background:
      linear-gradient(0deg, rgba(6, 10, 14, 0.88) 0%, rgba(6, 10, 14, 0.32) 56%, rgba(6, 10, 14, 0.08) 100%),
      linear-gradient(0deg, rgba(6, 10, 14, 0.82) 0%, rgba(6, 10, 14, 0.18) 52%, rgba(6, 10, 14, 0.1) 100%);
  }

  .hero-showcase-content {
    width: calc(100% - 32px);
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
    background: rgba(7, 12, 16, 0.74);
  }

  .hero-copy h1,
  .hero-showcase-content h1 {
    font-size: 2.08rem;
    line-break: anywhere;
    word-break: break-all;
  }

  .hero-showcase-content .hero-slogan,
  .hero-showcase-content .hero-lead {
    overflow-wrap: anywhere;
  }

  .section-head h2,
  .about-copy h2,
  .app-copy h2,
  .section-head--contact h2 {
    display: block;
    width: 100%;
    font-size: 1.95rem;
  }

  .hero-slogan {
    font-size: 1.02rem;
  }

  .visual-shell,
  .info-card,
  .spec-panel,
  .performance-showcase,
  .timeline-card,
  .contact-lead,
  .contact-card,
  .guide-card,
  .service-visual-card {
    padding: 18px;
  }

  .product-angle-grid {
    grid-template-columns: 1fr;
  }

  .product-angle-card,
  .product-angle-card--wide {
    min-height: auto;
  }

  .product-angle-card img,
  .product-angle-card--wide img {
    aspect-ratio: 4 / 3;
  }

  .case-album {
    grid-auto-columns: minmax(260px, 82vw);
  }

  .contact-qr-panel img {
    width: 124px;
  }

  .product-gallery-main,
  .product-gallery-main img {
    min-height: 410px;
  }

  .product-gallery-main img {
    padding: 18px;
  }

  .product-gallery-caption {
    left: 12px;
    right: 12px;
    bottom: 12px;
    padding: 12px;
  }

  .product-gallery-thumbs {
    display: flex;
    gap: 10px;
    padding-bottom: 4px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
  }

  .gallery-thumb {
    grid-template-columns: 58px minmax(100px, 1fr);
    min-width: 196px;
    scroll-snap-align: start;
  }

  .certificate-section {
    margin-top: 42px;
  }

  .video-frame,
  .video-frame video {
    min-height: 240px;
  }

  .case-card > div {
    padding: 16px;
  }

  .lead-dock {
    bottom: 10px;
    width: calc(100% - 20px);
    padding: 12px;
  }

  .lead-dock-copy span {
    display: none;
  }

  .lead-quick-form {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .lead-quick-form input:not(.form-hp),
  .lead-quick-form button {
    min-height: 40px;
  }

  .lead-dock-status {
    font-size: 0.82rem;
  }

  .lead-modal {
    padding: 14px;
  }

  .lead-dialog {
    max-height: calc(100vh - 28px);
    padding: 24px 18px 20px;
  }

  .lead-form {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}