:root {
  color-scheme: dark;
  --bg: #090b0d;
  --panel: #10161a;
  --panel-strong: #151e23;
  --text: #f4f8f9;
  --muted: #a8b5b9;
  --line: rgba(255, 255, 255, 0.13);
  --cyan: #31d7e8;
  --green: #77d47f;
  --yellow: #d6b84c;
  --ink: #050607;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

body.menu-open {
  overflow: hidden;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  background: rgba(6, 8, 10, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(18px);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  order: 3;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  min-width: 126px;
  background: transparent;
  padding: 0;
}

.brand-logo {
  width: 114px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: var(--text);
}

.nav-shop-button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
  padding: 0 14px;
  font-weight: 800;
}

.nav-shop-button:hover {
  border-color: rgba(49, 215, 232, 0.58);
  background: rgba(49, 215, 232, 0.12);
}

.language-menu {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--muted);
  padding: 0 8px 0 12px;
  font-size: 0.86rem;
  font-weight: 800;
}

.language-menu select {
  min-height: 30px;
  border: 0;
  border-radius: 4px;
  background: rgba(5, 9, 12, 0.92);
  color: var(--text);
  padding: 0 28px 0 10px;
  font: inherit;
  outline: none;
  cursor: pointer;
}

.language-menu:focus-within {
  border-color: rgba(49, 215, 232, 0.62);
  box-shadow: 0 0 0 3px rgba(49, 215, 232, 0.12);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 130px max(24px, calc((100vw - var(--max)) / 2)) 54px;
}

.hero-image,
.hero-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-video {
  display: block;
  object-position: center center;
  pointer-events: none;
}

.hero-scrim {
  background:
    linear-gradient(90deg, rgba(5, 6, 7, 0.88) 0%, rgba(5, 6, 7, 0.62) 38%, rgba(5, 6, 7, 0.08) 78%),
    linear-gradient(0deg, rgba(5, 6, 7, 0.8) 0%, rgba(5, 6, 7, 0.02) 42%, rgba(5, 6, 7, 0.3) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.dark-home-hero-content {
  max-width: 590px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 690px;
  margin-bottom: 24px;
  font-size: clamp(2.8rem, 7vw, 6.8rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.dark-home-hero-content h1 {
  max-width: 560px;
  margin-bottom: 20px;
  font-size: clamp(2.05rem, 4.2vw, 4.15rem);
  line-height: 1.06;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.18rem;
}

.hero-copy,
.section-lead,
.capability-copy p,
.strength-grid p,
.contact-section p,
.product-card p,
.process-list p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-copy {
  max-width: 640px;
  margin-bottom: 30px;
  font-size: 1.08rem;
}

.dark-home-hero-content .hero-copy {
  max-width: 540px;
  margin-bottom: 26px;
  font-size: 1rem;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.primary-button,
.secondary-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  padding: 0 20px;
  font-weight: 800;
}

.primary-button {
  background: var(--cyan);
  color: #041013;
}

.secondary-button {
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 920px;
  margin: 56px 0 0;
}

.hero-metrics div {
  min-height: 112px;
  border: 1px solid var(--line);
  background: rgba(9, 14, 16, 0.66);
  padding: 18px;
}

.hero-metrics dt {
  margin-bottom: 8px;
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 900;
}

.hero-metrics dd {
  margin: 0;
  color: var(--text);
  line-height: 1.55;
}

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

.section {
  padding: 92px 0;
}

.intro-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.8fr);
  gap: 48px;
  align-items: end;
  border-bottom: 1px solid var(--line);
}

.section-lead {
  margin-bottom: 18px;
  font-size: 1.08rem;
}

.latest-products-section {
  border-bottom: 1px solid var(--line);
}

.latest-products-header {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(300px, 0.65fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 34px;
}

.latest-products-header .section-lead {
  max-width: 580px;
  margin-left: auto;
}

.latest-product-stack {
  display: grid;
  gap: 24px;
}

.latest-product-feature {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d1316;
  transition: border-color 180ms ease, transform 180ms ease;
}

.latest-product-feature:hover {
  border-color: rgba(49, 215, 232, 0.52);
  transform: translateY(-2px);
}

.latest-product-feature > a {
  display: block;
  color: inherit;
}

.latest-product-image {
  position: relative;
  aspect-ratio: 1920 / 903;
  overflow: hidden;
  background: #070b0d;
}

.latest-product-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 260ms ease;
}

.latest-product-feature:hover .latest-product-image img {
  transform: scale(1.012);
}

.latest-product-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  border-top: 1px solid var(--line);
  padding: 22px 24px;
}

.latest-product-code {
  display: block;
  margin-bottom: 8px;
  color: var(--yellow);
  font-size: 0.72rem;
  font-weight: 900;
}

.latest-product-caption h3 {
  margin-bottom: 7px;
  font-size: 1.38rem;
}

.latest-product-caption p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.6;
}

.latest-product-link {
  flex: 0 0 auto;
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 900;
}

.products-section {
  padding-bottom: 54px;
}

.news-section {
  border-bottom: 1px solid var(--line);
}

.news-grid {
  display: grid;
  grid-template-columns: 1.15fr repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.news-card {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(49, 215, 232, 0.1), transparent 54%),
    #0d1114;
  padding: 24px;
}

.featured-news {
  background:
    linear-gradient(145deg, rgba(119, 212, 127, 0.12), transparent 54%),
    #0d1114;
}

.news-tag {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--yellow);
  font-size: 0.76rem;
  font-weight: 900;
}

.news-card h3 {
  max-width: 420px;
}

.news-card p {
  color: var(--muted);
  line-height: 1.7;
}

.news-card a,
.news-source {
  margin-top: auto;
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 800;
}

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

.product-card {
  min-height: 228px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(49, 215, 232, 0.1), transparent 46%),
    var(--panel);
  padding: 24px;
}

.linked-product-card {
  padding: 0;
}

.linked-product-card a {
  min-height: 228px;
  display: block;
  padding: 24px;
}

.linked-product-card:hover {
  border-color: rgba(49, 215, 232, 0.48);
  transform: translateY(-2px);
}

.product-code {
  display: inline-flex;
  margin-bottom: 40px;
  color: var(--yellow);
  font-size: 0.82rem;
  font-weight: 900;
}

.capability-section {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(320px, 1fr);
  gap: 48px;
  align-items: start;
  padding: 86px 0;
}

.capability-copy {
  position: sticky;
  top: 104px;
}

.process-list {
  display: grid;
  gap: 12px;
}

.process-list article {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  border-left: 2px solid var(--cyan);
  background: var(--panel-strong);
  padding: 22px;
}

.process-list span {
  color: var(--cyan);
  font-weight: 900;
}

.process-list h3,
.process-list p {
  grid-column: 2;
}

.strength-section {
  border-top: 1px solid var(--line);
}

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

.strength-grid div {
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0d1114;
  padding: 24px;
}

.pilots-section {
  border-top: 1px solid var(--line);
  padding-top: 74px;
}

.pilot-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.pilot-card {
  min-height: 258px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(119, 212, 127, 0.09), transparent 48%),
    #0d1114;
  padding: 14px;
}

.featured-pilot {
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 16px;
}

.featured-pilot img {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  object-fit: cover;
}

.pilot-card h3 {
  margin-bottom: 8px;
}

.pilot-card p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.55;
}

.pilot-placeholder {
  display: grid;
  align-content: end;
  border-style: dashed;
  color: var(--muted);
}

.pilot-placeholder span {
  margin-bottom: auto;
  color: var(--yellow);
  font-size: 0.82rem;
  font-weight: 900;
}

.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  margin-bottom: 86px;
  border: 1px solid rgba(49, 215, 232, 0.34);
  border-radius: 8px;
  background:
    linear-gradient(120deg, rgba(49, 215, 232, 0.16), transparent 62%),
    #0c1215;
  padding: 34px;
}

.contact-section h2 {
  max-width: 720px;
  font-size: clamp(1.6rem, 3vw, 3rem);
}

.contact-section p {
  max-width: 640px;
  margin-bottom: 0;
}

.inquiry-page {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 128px 0 92px;
}

.inquiry-hero {
  max-width: 900px;
  padding-bottom: 34px;
}

.inquiry-hero h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(2.4rem, 5.2vw, 5.2rem);
  line-height: 0.98;
}

.inquiry-hero .section-lead {
  max-width: 820px;
  margin-top: 18px;
}

.inquiry-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.38fr);
  gap: 18px;
  align-items: start;
}

.inquiry-form,
.inquiry-panel {
  border: 1px solid rgba(49, 215, 232, 0.22);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(49, 215, 232, 0.1), transparent 54%),
    #10171b;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.24);
}

.inquiry-form {
  min-width: 0;
  padding: 28px;
}

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

.form-field {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.form-grid .form-field {
  margin-bottom: 0;
}

.form-field span {
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
  font: inherit;
  font-size: 1rem;
  line-height: 1.5;
  padding: 13px 14px;
}

.form-field select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--cyan) 50%),
    linear-gradient(135deg, var(--cyan) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) 50%,
    calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 38px;
}

.form-field textarea {
  min-height: 190px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: rgba(49, 215, 232, 0.76);
  box-shadow: 0 0 0 3px rgba(49, 215, 232, 0.14);
}

.inquiry-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 22px;
}

.inquiry-status {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--green);
  line-height: 1.5;
}

.inquiry-panel {
  position: sticky;
  top: 96px;
  padding: 28px;
}

.inquiry-panel h2 {
  margin: 12px 0 0;
  font-size: clamp(1.5rem, 2.4vw, 2.4rem);
  line-height: 1.08;
}

.recipient-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.recipient-list li {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.35;
  overflow-wrap: anywhere;
  padding: 12px;
}

.inquiry-panel-copy {
  color: var(--muted);
  line-height: 1.7;
}

.inquiry-panel-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.inquiry-panel-list li {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.055);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.45;
  padding: 12px 12px 12px 34px;
}

.inquiry-panel-list li::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 18px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(49, 215, 232, 0.5);
}

.inquiry-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.inquiry-note span {
  border: 1px solid rgba(214, 184, 76, 0.34);
  border-radius: 999px;
  background: rgba(214, 184, 76, 0.1);
  color: var(--yellow);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  padding: 7px 10px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.motor-hero,
.motor-detail-hero {
  width: min(var(--max), calc(100% - 48px));
  min-height: auto;
  display: grid;
  grid-template-columns: minmax(280px, 0.55fr) minmax(420px, 1fr);
  gap: 24px;
  align-items: stretch;
  margin: 0 auto;
  padding: 118px 0 44px;
}

.motor-detail-hero {
  min-height: 78vh;
  grid-template-columns: minmax(0, 0.78fr) minmax(420px, 1fr);
  gap: 34px;
  align-items: center;
  padding-bottom: 64px;
}

.motor-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(49, 215, 232, 0.1), transparent 52%),
    var(--panel);
  padding: 28px;
}

.motor-hero-copy p,
.motor-detail-copy p,
.motor-card p,
.detail-note {
  color: var(--muted);
  line-height: 1.75;
}

.latest-motor,
.motor-detail-gallery,
.motor-card,
.detail-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(49, 215, 232, 0.1), transparent 50%),
    var(--panel);
}

.latest-motor,
.motor-detail-gallery {
  padding: 22px;
}

.latest-motor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, 240px);
  gap: 18px;
  align-items: center;
}

.latest-motor h2 {
  font-size: 1.1rem;
  line-height: 1.18;
}

.latest-motor img {
  width: 100%;
  max-height: 260px;
  object-fit: contain;
}

.motor-detail-gallery img {
  width: 100%;
  max-height: 430px;
  object-fit: contain;
}

.motor-detail-copy h1 {
  font-size: clamp(1.35rem, 2.4vw, 2.35rem);
  line-height: 1.12;
}

.motor-badge {
  display: inline-flex;
  margin-bottom: 18px;
  border-radius: 999px;
  background: rgba(214, 184, 76, 0.14);
  color: var(--yellow);
  padding: 6px 10px;
  font-size: 0.72rem;
  font-weight: 900;
}

.kv-list,
.application-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 24px;
}

.kv-list span,
.application-list span {
  border: 1px solid rgba(49, 215, 232, 0.3);
  border-radius: 999px;
  background: rgba(49, 215, 232, 0.1);
  color: var(--text);
  padding: 7px 10px;
  font-size: 0.86rem;
  font-weight: 800;
}

.motor-filter {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.motor-filter-group {
  display: grid;
  gap: 8px;
}

.filter-label {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.motor-filter button {
  min-height: 38px;
  border: 1px solid rgba(49, 215, 232, 0.25);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  padding: 0 14px;
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.motor-filter button.active,
.motor-filter button:hover {
  background: var(--cyan);
  color: #031012;
}

.motor-category-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  color: var(--muted);
}

.motor-category-summary strong {
  color: var(--text);
}

.motor-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.motor-card {
  overflow: hidden;
}

.motor-card a {
  display: grid;
  min-height: 100%;
}

.motor-card img {
  width: 100%;
  aspect-ratio: 1.15;
  background: #0c1114;
  object-fit: contain;
  padding: 20px;
}

.motor-card-body {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.motor-card h3 {
  margin-bottom: 8px;
  font-size: 0.82rem;
  line-height: 1.3;
}

.motor-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.motor-meta span {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  padding: 6px 9px;
  font-size: 0.78rem;
  font-weight: 800;
}

.empty-catalog {
  grid-column: 1 / -1;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  padding: 28px;
  text-align: center;
}

.motor-detail-gallery {
  order: 2;
}

.motor-detail-copy {
  order: 1;
}

.motor-detail-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.detail-panel {
  padding: 26px;
}

.wide-panel {
  grid-column: 1 / -1;
}

.product-graphics-panel {
  display: grid;
  gap: 18px;
}

.product-graphics {
  display: grid;
  gap: 14px;
}

.product-graphics img {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: #fff;
  object-fit: contain;
}

.fpv-detail-hero,
.fpv-detail-section {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

.fpv-detail-hero {
  min-height: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.72fr);
  gap: 24px;
  padding: 116px 0 44px;
  align-items: start;
}

.fpv-gallery,
.fpv-product-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(49, 215, 232, 0.1), transparent 50%),
    var(--panel);
}

.fpv-gallery {
  display: grid;
  gap: 12px;
  padding: 14px;
}

.fpv-gallery-main {
  display: grid;
  place-items: center;
  min-height: 540px;
  border-radius: 6px;
  background: #0c1114;
}

.fpv-gallery-main img {
  width: 100%;
  max-height: 620px;
  object-fit: contain;
}

.fpv-gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 8px;
}

.fpv-gallery-thumbs button {
  min-height: 72px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: #0c1114;
  cursor: pointer;
  padding: 4px;
}

.fpv-gallery-thumbs button.active,
.fpv-gallery-thumbs button:hover {
  border-color: var(--cyan);
}

.fpv-gallery-thumbs img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}

.fpv-product-panel {
  position: sticky;
  top: 92px;
  padding: 28px;
}

.fpv-product-panel h1 {
  max-width: 100%;
  font-size: clamp(1.25rem, 2vw, 2.05rem);
  line-height: 1.16;
}

.fpv-product-panel p {
  color: var(--muted);
  line-height: 1.7;
}

.fpv-spec-list {
  display: grid;
  gap: 0;
  margin: 0 0 24px;
}

.fpv-spec-list div {
  display: grid;
  grid-template-columns: minmax(112px, 0.42fr) 1fr;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 11px 0;
}

.fpv-spec-list dt {
  color: var(--muted);
  font-weight: 900;
}

.fpv-spec-list dd {
  margin: 0;
}

.fpv-detail-section {
  padding: 30px 0;
}

.fpv-overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.compact-heading h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.4rem);
}

.fpv-video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.fpv-video-grid iframe,
.fpv-video-preview {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #000;
}

.fpv-video-preview {
  position: relative;
  display: block;
  overflow: hidden;
  color: #fff;
}

.fpv-video-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 180ms ease, filter 180ms ease;
}

.fpv-video-preview:hover img,
.fpv-video-preview:focus-visible img {
  transform: scale(1.02);
  filter: brightness(0.8);
}

.fpv-video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 58px;
  height: 42px;
  border-radius: 8px;
  background: #ff163d;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.38);
  transform: translate(-50%, -50%);
}

.fpv-video-play::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 52%;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  border-left: 15px solid #fff;
  transform: translate(-50%, -50%);
}

.fpv-video-label {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 7px 10px;
  border-radius: 4px;
  background: rgba(5, 11, 15, 0.82);
  font-size: 0.82rem;
  font-weight: 800;
}

.fpv-content-images {
  display: grid;
  gap: 14px;
}

.fpv-content-images img {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: #fff;
  object-fit: contain;
}

.feature-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.65;
}

.spec-grid {
  display: grid;
  gap: 10px;
  margin: 0;
}

.spec-grid div {
  display: grid;
  grid-template-columns: minmax(130px, 0.5fr) 1fr;
  gap: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 10px 0;
}

.spec-grid dt {
  color: var(--muted);
  font-weight: 800;
}

.spec-grid dd {
  margin: 0;
  color: var(--text);
}

.detail-note {
  max-width: 760px;
}

@media (max-width: 880px) {
  .site-header {
    height: 66px;
    padding: 0 18px;
    gap: 12px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 66px 0 auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(6, 8, 10, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 12px 18px 18px;
  }

  body.menu-open .site-nav {
    display: flex;
  }

  .site-nav a {
    min-height: 48px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-shop-button {
    justify-content: flex-start;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0;
    background: transparent;
    padding: 0;
  }

  .language-menu {
    min-height: 40px;
  }

  .language-menu span {
    display: none;
  }

  .hero {
    min-height: 96vh;
    padding: 112px 18px 36px;
  }

  .hero-scrim {
    background:
      linear-gradient(90deg, rgba(5, 6, 7, 0.86), rgba(5, 6, 7, 0.42)),
      linear-gradient(0deg, rgba(5, 6, 7, 0.82), rgba(5, 6, 7, 0.1) 58%, rgba(5, 6, 7, 0.42));
  }

  h1 {
    font-size: clamp(2.4rem, 12vw, 4.2rem);
  }

  .dark-home-hero-content h1 {
    font-size: clamp(1.9rem, 8.8vw, 3.1rem);
  }

  .hero-metrics,
  .intro-section,
  .latest-products-header,
  .news-grid,
  .inquiry-layout,
  .form-grid,
  .motor-hero,
  .motor-detail-hero,
  .fpv-detail-hero,
  .fpv-overview-grid,
  .fpv-video-grid,
  .product-grid,
  .capability-section,
  .strength-grid,
  .pilot-grid,
  .motor-grid,
  .motor-detail-section,
  .latest-motor-layout {
    grid-template-columns: 1fr;
  }

  .hero-metrics {
    margin-top: 34px;
  }

  .section,
  .capability-section,
  .contact-section,
  .inquiry-page,
  .motor-hero,
  .motor-detail-hero,
  .fpv-detail-hero,
  .fpv-detail-section,
  .site-footer {
    width: min(100% - 36px, var(--max));
  }

  .motor-hero,
  .motor-detail-hero,
  .fpv-detail-hero {
    padding: 108px 0 52px;
  }

  .fpv-product-panel {
    position: static;
  }

  .fpv-gallery-main {
    min-height: 320px;
  }

  .section,
  .capability-section {
    padding: 64px 0;
  }

  .latest-products-header {
    gap: 18px;
    margin-bottom: 24px;
  }

  .latest-products-header .section-lead {
    margin-left: 0;
  }

  .latest-product-caption {
    align-items: flex-start;
    padding: 18px;
  }

  .capability-copy {
    position: static;
  }

  .contact-section,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .inquiry-page {
    padding: 108px 0 72px;
  }

  .inquiry-hero h1 {
    font-size: clamp(2.1rem, 10vw, 3.6rem);
  }

  .inquiry-form,
  .inquiry-panel {
    padding: 22px;
  }

  .inquiry-panel {
    position: static;
  }
}

@media (max-width: 520px) {
  .latest-product-caption {
    flex-direction: column;
  }

  .brand-logo-wrap {
    min-width: 112px;
  }

  .brand-logo {
    width: 106px;
  }

  .header-actions {
    gap: 8px;
  }

  .language-menu {
    padding: 0 5px;
  }

  .language-menu select {
    width: 86px;
    padding-left: 8px;
  }

  .hero-actions,
  .inquiry-actions,
  .contact-actions {
    width: 100%;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .product-card,
  .strength-grid div {
    min-height: auto;
  }

  .process-list article {
    grid-template-columns: 40px 1fr;
    padding: 18px;
  }
}