:root {
  --bg: #020b12;
  --panel: rgba(7, 23, 35, 0.82);
  --line: rgba(104, 192, 255, 0.24);
  --line-strong: rgba(121, 215, 255, 0.48);
  --text: #eef8ff;
  --muted: #91aabb;
  --blue: #2d8cff;
  --cyan: #82dcff;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 50% 0%, rgba(32, 135, 255, 0.2), transparent 24rem),
    linear-gradient(180deg, #03101a, #020b12 34rem, #03111a);
  -webkit-font-smoothing: antialiased;
}

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

button {
  font: inherit;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  min-height: 64px;
  padding: calc(10px + env(safe-area-inset-top)) 14px 10px;
  border-bottom: 1px solid rgba(133, 202, 255, 0.13);
  background: rgba(1, 8, 14, 0.82);
  backdrop-filter: blur(18px);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: max-content;
}

.logo img {
  width: 28px;
  height: 28px;
  object-fit: cover;
  object-position: center 14%;
  mix-blend-mode: screen;
}

.logo strong {
  color: #f2fbff;
  font-size: 17px;
  letter-spacing: 0;
}

.topbar nav {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  color: #d7e9f5;
  font-size: 12px;
  scrollbar-width: none;
}

.topbar nav::-webkit-scrollbar {
  display: none;
}

.topbar nav a {
  min-width: max-content;
}

.topbar nav span {
  display: none;
}

.lang {
  display: flex;
  gap: 6px;
  color: #d5e7f2;
  font-size: 11px;
}

.lang b {
  color: var(--blue);
}

main {
  overflow: hidden;
}

.hero-map {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: calc(100svh - 64px);
  padding: 24px 16px 22px;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -5;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  filter: saturate(0.74) contrast(1.1);
  transform: scale(1.04);
  transition: opacity 850ms ease, transform 1200ms ease;
}

.hero-bg.is-active {
  opacity: 0.58;
  transform: scale(1);
}

.map-shade {
  position: absolute;
  inset: 0;
  z-index: -4;
  background:
    linear-gradient(180deg, rgba(2, 11, 18, 0.72), rgba(2, 11, 18, 0.46) 38%, #020b12 100%),
    linear-gradient(90deg, rgba(2, 11, 18, 0.88), rgba(2, 11, 18, 0.34));
}

.map-grid,
.terrain-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.map-grid {
  z-index: -3;
  background-image:
    linear-gradient(rgba(125, 211, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 211, 255, 0.06) 1px, transparent 1px);
  background-size: 34px 34px;
}

.terrain-lines {
  z-index: -2;
  opacity: 0.42;
  background:
    radial-gradient(ellipse at 76% 16%, transparent 0 3.5rem, rgba(106, 201, 255, 0.2) 3.58rem 3.66rem, transparent 3.76rem),
    radial-gradient(ellipse at 76% 16%, transparent 0 6rem, rgba(106, 201, 255, 0.12) 6.08rem 6.16rem, transparent 6.26rem),
    linear-gradient(115deg, transparent 50%, rgba(78, 185, 255, 0.22) 50.1%, transparent 50.42%);
}

.hero-copy {
  order: 1;
  width: 100%;
  padding-top: clamp(70px, 13svh, 120px);
}

.hero-copy h1 {
  margin: 0;
  max-width: 9em;
  color: var(--text);
  font-size: clamp(34px, 10vw, 44px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-copy p {
  margin: 10px 0 18px;
  color: #e7f5ff;
  font-size: 15px;
}

.hero-copy ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin: 0 0 24px;
  padding: 0;
  color: #cddde8;
  font-size: 12px;
  list-style: none;
}

.hero-copy li:not(:last-child)::after {
  content: " ·";
  color: #6d889b;
}

.hero-copy a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.hero-copy a span {
  color: #b7d8ef;
  font-size: 11px;
}

.hero-copy a::after {
  content: "→";
  color: #fff;
}

.status-box,
.sensor-feed,
.signal-box {
  position: relative;
  border: 1px solid var(--line-strong);
  background: rgba(3, 14, 22, 0.62);
  backdrop-filter: blur(12px);
}

.status-box {
  order: 2;
  width: 156px;
  padding: 12px 14px;
}

.status-box span,
.sensor-feed header span,
.signal-box span {
  color: #9edbff;
  font-size: 10px;
  letter-spacing: 0.08em;
}

.status-box strong {
  display: block;
  margin-top: 7px;
  color: #58ffb6;
  font-size: 12px;
}

.radar-widget {
  position: absolute;
  top: 84px;
  right: 18px;
  width: 92px;
  height: 72px;
}

.radar-ring {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(112, 199, 255, 0.34);
  border-radius: 50%;
  background:
    repeating-radial-gradient(circle, transparent 0 12px, rgba(93, 184, 255, 0.17) 13px 14px),
    conic-gradient(from 30deg, rgba(45, 140, 255, 0.36), transparent 34%, rgba(45, 140, 255, 0.18));
}

.radar-widget span {
  position: absolute;
  top: 29px;
  left: 39px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
}

.sensor-feed {
  order: 3;
  padding: 10px;
}

.sensor-feed header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.sensor-feed b {
  color: #ff4c61;
  font-size: 10px;
}

.sensor-image {
  position: relative;
  height: 118px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
}

.sensor-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.2);
}

.sensor-image i {
  position: absolute;
  inset: 39% 42%;
  border: 1px solid #fff;
}

.sensor-feed dl {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px 12px;
  margin: 10px 0 0;
  color: #c8d8e2;
  font-size: 10px;
}

.sensor-feed dl div {
  display: grid;
  grid-template-columns: 38px 1fr;
}

.sensor-feed dt {
  color: #7e9aaa;
}

.sensor-feed dd {
  margin: 0;
}

.signal-box {
  order: 4;
  padding: 12px;
}

.signal-box p {
  margin: 10px 0;
  color: #c8dae5;
  font-size: 10px;
  line-height: 1.55;
}

.signal-box b {
  color: #ffcf65;
}

.wave {
  height: 22px;
  background: linear-gradient(135deg, transparent 45%, rgba(76, 183, 255, 0.85) 46% 50%, transparent 51%) 0 0 / 22px 22px;
  opacity: 0.8;
}

.capability-strip {
  order: 5;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 8px;
}

.capability-strip div {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 3px 9px;
  align-items: center;
  min-height: 42px;
}

.capability-strip i {
  grid-row: span 2;
  color: #fff;
  font-size: 19px;
  font-style: normal;
}

.capability-strip strong {
  font-size: 12px;
}

.capability-strip span {
  color: var(--muted);
  font-size: 10px;
}

main > section:not(.hero-map),
footer {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding-inline: 16px;
}

.workflow-section,
.product-grid-section,
.product-detail-section,
.solutions-section,
.compliance-section,
.about-section {
  padding-top: 48px;
}

.section-title,
.section-headline {
  display: block;
  margin-bottom: 18px;
}

.section-title h2,
.section-headline h2 {
  margin: 0;
  padding-left: 14px;
  border-left: 1px solid var(--cyan);
  color: var(--text);
  font-size: clamp(24px, 7vw, 32px);
  line-height: 1.15;
}

.section-title p,
.section-headline p {
  margin: 6px 0 0;
  padding-left: 14px;
  color: var(--muted);
  font-size: 11px;
}

.section-headline a {
  display: inline-flex;
  margin-top: 12px;
  color: var(--blue);
  font-size: 12px;
}

.section-headline a span {
  margin-left: 10px;
  color: #a9cce3;
  font-size: 11px;
}

.workflow-row,
.product-grid,
.solution-row,
.compliance-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.workflow-row article {
  position: relative;
  min-height: 236px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(180deg, rgba(14, 39, 57, 0.86), rgba(5, 17, 27, 0.9));
}

.workflow-row b {
  color: var(--blue);
  font-size: 14px;
}

.workflow-row h3 {
  margin: 6px 0 0;
  font-size: 22px;
}

.workflow-row span {
  color: #d0e1eb;
  font-size: 12px;
}

.workflow-row img {
  width: calc(100% + 36px);
  height: 116px;
  margin: 14px -18px;
  object-fit: cover;
  filter: grayscale(.28) brightness(.74);
}

.workflow-row article:nth-child(2) img {
  object-fit: contain;
  background: #071521;
}

.workflow-row p {
  margin: 0;
  color: #d1dde6;
  font-size: 12px;
  line-height: 1.55;
}

.product-grid article,
.solution-row article {
  position: relative;
  min-height: 224px;
  overflow: hidden;
  cursor: pointer;
  background: #071521;
}

.product-grid img,
.solution-row img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.72) brightness(.78);
}

.product-grid article[data-open-product="night"] img,
.product-grid article[data-open-product="nav"] img,
.product-grid article[data-open-product="secure"] img {
  object-fit: contain;
  background: #071521;
}

.product-grid article::after,
.solution-row article::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4,13,21,.22), rgba(3,11,18,.86));
}

.product-grid div,
.solution-row article > *:not(img) {
  position: relative;
  z-index: 1;
}

.product-grid div {
  padding: 18px;
}

.product-grid h3,
.solution-row h3 {
  margin: 0;
  font-size: 21px;
}

.product-grid p,
.solution-row p {
  margin: 3px 0 78px;
  color: #d5e5ef;
  font-size: 11px;
}

.product-grid span,
.solution-row span {
  display: block;
  color: #d5e5ef;
  font-size: 11px;
  line-height: 1.55;
}

.detail-shell {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--line);
  background: rgba(5, 17, 27, .72);
}

.detail-tabs {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
}

.detail-tabs::-webkit-scrollbar {
  display: none;
}

.detail-tabs button {
  min-width: max-content;
  min-height: 52px;
  padding: 0 16px;
  border: 0;
  border-right: 1px solid var(--line);
  color: #a9bdca;
  text-align: left;
  background: transparent;
  cursor: pointer;
}

.detail-tabs button.is-active,
.detail-tabs button:hover {
  color: #fff;
  background: rgba(45, 140, 255, .16);
}

.detail-content {
  display: grid;
  grid-template-columns: 1fr;
}

.detail-copy {
  padding: 22px 18px;
}

.detail-copy span {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}

.detail-copy h2 {
  margin: 10px 0 14px;
  font-size: clamp(30px, 9vw, 38px);
  line-height: 1;
}

.detail-copy p {
  color: #c2d5e1;
  font-size: 13px;
  line-height: 1.75;
}

.detail-specs {
  display: grid;
  gap: 7px;
  margin-top: 22px;
}

.detail-specs div {
  display: grid;
  gap: 4px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(138, 205, 255, .16);
  color: #d8e9f2;
  font-size: 12px;
}

.detail-specs b {
  color: #7edcff;
  font-weight: 700;
}

.detail-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-content: start;
  padding: 0 18px 18px;
  max-height: 70vh;
  overflow: auto;
}

.detail-gallery figure {
  margin: 0;
  border: 1px solid rgba(125, 205, 255, .18);
  background: #071521;
}

.detail-gallery img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: #071521;
  cursor: zoom-in;
}

.detail-gallery figcaption {
  padding: 9px 10px;
  color: #d7e7f2;
  background: #071521;
  font-size: 11px;
  font-weight: 800;
}

.solution-row article {
  padding: 98px 18px 18px;
}

.solution-row p {
  margin-bottom: 18px;
}

.compliance-row {
  gap: 12px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.compliance-row div {
  display: flex;
  align-items: center;
  gap: 12px;
}

.compliance-row b {
  display: grid;
  place-items: center;
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: #e7f6ff;
  font-size: 13px;
}

.compliance-row span {
  color: #afc2cf;
  font-size: 11px;
  line-height: 1.5;
}

.about-section > div {
  padding: 36px 0 4px;
  border-top: 1px solid var(--line);
}

.about-section span {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 800;
}

.about-section h2 {
  margin: 10px 0 14px;
  font-size: clamp(28px, 7.2vw, 36px);
  line-height: 1.18;
}

.about-section p {
  color: #c0d1dd;
  font-size: 13px;
  line-height: 1.8;
}

.contact-panel {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 18px;
  align-items: center;
  width: min(100% - 32px, 480px);
  margin: 48px auto 28px;
  padding: 20px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(90deg, rgba(23, 97, 154, .18), rgba(5, 17, 27, .82));
}

.contact-logo {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.contact-logo img {
  width: 82px;
  height: 82px;
  object-fit: cover;
  object-position: center 22%;
  mix-blend-mode: screen;
}

.contact-panel h2 {
  margin: 0 0 8px;
  font-size: 28px;
}

.contact-panel p,
.email-block span,
.whatsapp-block span {
  color: var(--muted);
  font-size: 12px;
}

.email-block,
.whatsapp-block {
  grid-column: 1 / -1;
}

.email-block a {
  display: block;
  margin-top: 8px;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  word-break: break-word;
}

.whatsapp-block {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
}

.whatsapp-block img {
  width: 112px;
  height: 112px;
  padding: 8px;
  background: #fff;
}

footer {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding-bottom: calc(28px + env(safe-area-inset-bottom));
  color: var(--muted);
  font-size: 11px;
}

footer img {
  width: 104px;
  height: 28px;
  object-fit: cover;
  object-position: center 22%;
  mix-blend-mode: screen;
}

footer nav {
  display: flex;
  gap: 18px;
}

.image-preview {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));
  background: rgba(1, 8, 14, 0.92);
  backdrop-filter: blur(14px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.image-preview.is-open {
  opacity: 1;
  pointer-events: auto;
  cursor: zoom-out;
}

.image-preview img {
  max-width: 96vw;
  max-height: 88svh;
  object-fit: contain;
  border: 1px solid var(--line-strong);
  background: #071521;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
}

@media (min-width: 430px) {
  .product-grid article,
  .solution-row article {
    min-height: 250px;
  }

  .detail-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}