:root {
  --background: #04070b;
  --surface: #0a0f16;
  --surface-2: #0e151f;
  --line: rgba(255, 255, 255, 0.11);
  --muted: #9ca8b8;
  --text: #f4f7fb;
  --cyan: #62d8ff;
  --blue: #3b82f6;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background:
    radial-gradient(circle at 78% 10%, rgba(31, 123, 255, 0.11), transparent 27rem),
    var(--background);
  color: var(--text);
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui,
    sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

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

:where(h1, h2, h3) {
  word-break: auto-phrase;
  text-wrap: balance;
}

main {
  min-height: 100vh;
  overflow: hidden;
}

.site-header {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: 170px 1fr 170px;
  align-items: center;
  width: min(1220px, calc(100% - 48px));
  height: 88px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}

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

.brand img {
  width: 112px;
  height: auto;
}

nav {
  display: flex;
  justify-content: center;
  gap: 36px;
  color: #c3ccd8;
  font-size: 14px;
}

nav a,
footer a {
  transition: color 180ms ease;
}

nav a:hover,
footer a:hover {
  color: #ffffff;
}

.header-contact {
  display: flex;
  justify-self: end;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 17px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  font-size: 14px;
  transition:
    border-color 180ms ease,
    background 180ms ease;
}

.header-contact:hover {
  border-color: rgba(98, 216, 255, 0.7);
  background: rgba(98, 216, 255, 0.08);
}

.hero {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  align-items: center;
  width: min(1220px, calc(100% - 48px));
  min-height: 690px;
  margin: 0 auto;
  padding: 72px 0 74px;
}

.hero-copy {
  position: relative;
  z-index: 3;
}

.eyebrow,
.section-label {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 13px;
  border: 1px solid rgba(98, 216, 255, 0.2);
  border-radius: 999px;
  background: rgba(98, 216, 255, 0.06);
  letter-spacing: 0.08em;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #63f3be;
  box-shadow: 0 0 14px rgba(99, 243, 190, 0.8);
}

.hero h1 {
  max-width: 720px;
  margin: 28px 0 24px;
  font-size: clamp(54px, 6vw, 84px);
  font-weight: 650;
  letter-spacing: -0.06em;
  line-height: 1.03;
}

.hero h1 span {
  display: inline-block;
  background: linear-gradient(95deg, #ffffff 8%, #8fdcff 45%, #5d87ff 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

.hero-copy > p {
  max-width: 610px;
  margin: 0;
  color: #aeb9c8;
  font-size: 18px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 36px;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  gap: 30px;
  min-height: 52px;
  padding: 0 21px;
  border-radius: 8px;
  background: linear-gradient(120deg, #f7fbff, #dceeff);
  color: #07101a;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 16px 40px rgba(55, 146, 255, 0.16);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 45px rgba(55, 146, 255, 0.28);
}

.text-button {
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.36);
  color: #d2dae5;
  font-size: 14px;
}

.hero-visual {
  position: relative;
  min-height: 560px;
}

.hero-visual::after {
  position: absolute;
  right: 2%;
  bottom: 4%;
  left: 11%;
  height: 30%;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.65);
  filter: blur(40px);
  content: "";
}

.hero-visual > img {
  position: absolute;
  z-index: 2;
  top: 7%;
  right: -2%;
  width: 92%;
  border-radius: 52px;
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.55);
  transform: rotate(2deg);
}

.hero-glow {
  position: absolute;
  top: 8%;
  right: 0;
  width: 78%;
  height: 70%;
  border-radius: 50%;
  background: rgba(44, 146, 255, 0.32);
  filter: blur(90px);
}

.spec-chip {
  position: absolute;
  z-index: 4;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 145px;
  padding: 15px 17px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: rgba(7, 13, 21, 0.77);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(15px);
}

.spec-chip strong {
  font-size: 14px;
  letter-spacing: 0.02em;
}

.spec-chip span {
  color: #8d9bad;
  font-size: 11px;
}

.spec-chip-top {
  top: 17%;
  right: -3%;
}

.spec-chip-bottom {
  bottom: 13%;
  left: 4%;
}

.trust-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.trust-bar > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 128px;
  padding: 31px 34px;
  border-right: 1px solid var(--line);
}

.trust-bar > div:last-child {
  border-right: 0;
}

.trust-bar strong {
  font-size: 24px;
  font-weight: 550;
  letter-spacing: -0.03em;
}

.trust-bar span {
  color: #778497;
  font-size: 12px;
}

.section {
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
  padding: 140px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 66px;
}

.section-heading h2,
.product-copy h2,
.models-section h2,
.specs-copy h2,
.setup-heading h2,
.privacy-copy h2,
.contact-section h2 {
  max-width: 17ch;
  margin: 16px 0 0;
  font-size: clamp(38px, 4.2vw, 58px);
  font-weight: 580;
  letter-spacing: -0.05em;
  line-height: 1.15;
}

.contact-section h2 {
  max-width: none;
}

.title-phrase {
  display: inline-block;
  white-space: nowrap;
}

.models-section h2 {
  max-width: none;
  font-size: clamp(38px, 3.6vw, 50px);
}

.section-heading > p,
.product-lead,
.models-section p,
.specs-copy > p,
.privacy-copy > p,
.contact-section > p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.capability-card {
  position: relative;
  min-height: 300px;
  padding: 32px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.012);
  transition:
    background 180ms ease,
    transform 180ms ease;
}

.capability-card:hover {
  z-index: 2;
  background: rgba(73, 149, 255, 0.07);
  transform: translateY(-4px);
}

.card-number {
  color: #58708a;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.capability-card h3,
.application-grid h3,
.feature-list strong,
.steps h3 {
  font-size: 18px;
  font-weight: 600;
}

.capability-card h3 {
  margin: 104px 0 14px;
}

.capability-card p,
.application-grid p,
.feature-list p,
.steps p {
  margin: 0;
  color: #8d9aac;
  font-size: 14px;
  line-height: 1.8;
}

.product-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 790px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #070b10;
}

.product-image {
  position: relative;
  min-height: 690px;
  overflow: hidden;
}

.product-image::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 65%, #070b10 100%);
  content: "";
}

.product-image > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-caption {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: space-between;
  padding: 28px 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(3, 7, 12, 0.6);
  color: #d7e0eb;
  font-size: 12px;
  backdrop-filter: blur(12px);
}

.image-caption span:last-child {
  color: #6f7d90;
}

.product-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 620px;
  padding: 90px 72px;
}

.product-lead {
  margin-top: 28px;
}

.feature-list {
  display: grid;
  gap: 0;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.feature-list li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.feature-list li > span {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border: 1px solid rgba(98, 216, 255, 0.34);
  border-radius: 50%;
  color: var(--cyan);
  font-size: 12px;
}

.feature-list strong {
  display: block;
  margin-bottom: 7px;
}

.section-heading.compact {
  grid-template-columns: minmax(0, 680px);
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.application-grid article {
  display: grid;
  grid-template-columns: 70px 190px 1fr;
  gap: 20px;
  align-items: start;
  padding: 35px 32px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.application-grid article > span {
  color: #4c6077;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.application-grid h3 {
  margin: 0;
}

.models-section {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 100px;
  align-items: center;
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
  padding: 110px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.models-section p {
  margin-top: 26px;
}

.model-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.model-list span {
  display: flex;
  align-items: center;
  min-height: 100px;
  padding: 0 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.025), transparent);
  color: #d8e3ef;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.model-list span::before {
  width: 7px;
  height: 7px;
  margin-right: 14px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(98, 216, 255, 0.7);
  content: "";
}

.specs-section {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 100px;
  align-items: center;
}

.specs-copy > p {
  margin-top: 26px;
}

.spec-table {
  margin-top: 38px;
  border-top: 1px solid var(--line);
}

.spec-table > div {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.spec-table span {
  color: #728094;
}

.spec-table strong {
  font-weight: 520;
}

.specs-image {
  position: relative;
}

.specs-image > img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.42);
}

.specs-badge {
  position: absolute;
  right: -18px;
  bottom: -24px;
  display: flex;
  flex-direction: column;
  min-width: 130px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  background: rgba(8, 14, 22, 0.86);
  backdrop-filter: blur(12px);
}

.specs-badge span {
  color: #8593a5;
  font-size: 11px;
}

.specs-badge strong {
  margin-top: 3px;
  font-size: 24px;
}

.setup-section {
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
  padding: 110px 0 130px;
  border-top: 1px solid var(--line);
}

.setup-heading {
  max-width: 700px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 62px 0 0;
  padding: 0;
  list-style: none;
}

.steps li {
  min-height: 230px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}

.steps li > span {
  display: block;
  color: var(--cyan);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.steps h3 {
  margin: 82px 0 10px;
}

.privacy-section {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 110px;
  width: min(1220px, calc(100% - 48px));
  margin: 0 auto;
  padding: 120px 0;
  border-top: 1px solid var(--line);
}

.privacy-copy > p {
  margin-top: 28px;
}

.privacy-points {
  border-top: 1px solid var(--line);
}

.privacy-points > div {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 22px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.privacy-points > div > span {
  color: #52677f;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

.privacy-points p {
  margin: 0;
  color: #8e9bad;
  line-height: 1.85;
}

.privacy-points strong {
  display: block;
  margin-bottom: 6px;
  color: #f0f4f9;
  font-size: 16px;
}

.contact-section {
  display: flex;
  min-height: 500px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 24px;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 100%, rgba(35, 127, 255, 0.24), transparent 52%),
    #070b11;
  text-align: center;
}

.contact-section > p {
  margin-top: 22px;
}

.contact-section > a {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  margin-top: 42px;
  padding: 14px 0 8px;
  border-bottom: 1px solid rgba(98, 216, 255, 0.45);
  color: #dff6ff;
  font-size: clamp(20px, 2.4vw, 30px);
}

footer {
  display: grid;
  grid-template-columns: 160px 1fr auto;
  align-items: center;
  gap: 30px;
  width: min(1220px, calc(100% - 48px));
  min-height: 150px;
  margin: 0 auto;
  color: #677589;
  font-size: 12px;
}

.footer-brand img {
  width: 94px;
}

footer > p {
  margin: 0;
}

footer > div {
  display: flex;
  gap: 24px;
  color: #9ba7b7;
}

footer > span {
  grid-column: 1 / -1;
  padding: 18px 0 28px;
  border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 88px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    min-height: 590px;
    margin-top: 10px;
  }

  .hero-visual > img {
    right: 4%;
    width: 78%;
  }

  .spec-chip-top {
    right: 7%;
  }

  .spec-chip-bottom {
    left: 14%;
  }

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

  .product-section,
  .specs-section,
  .privacy-section {
    grid-template-columns: 1fr;
  }

  .product-copy {
    max-width: none;
  }

  .application-grid article {
    grid-template-columns: 50px 1fr;
  }

  .application-grid article p {
    grid-column: 2;
  }

  .models-section {
    gap: 55px;
  }

  .specs-image {
    max-width: 720px;
  }

  .privacy-section {
    gap: 60px;
  }
}

@media (max-width: 720px) {
  .site-header,
  .hero,
  .trust-bar,
  .section,
  .models-section,
  .setup-section,
  .privacy-section,
  footer {
    width: min(100% - 32px, 1220px);
  }

  .site-header {
    height: 74px;
  }

  .brand img {
    width: 96px;
  }

  .header-contact {
    min-height: 38px;
    padding: 0 14px;
    font-size: 12px;
  }

  .hero {
    min-height: auto;
    padding: 62px 0 54px;
  }

  .hero h1 {
    margin-top: 24px;
    font-size: clamp(46px, 12.5vw, 52px);
  }

  .hero-copy > p {
    font-size: 16px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
  }

  .hero-visual {
    min-height: 450px;
    margin-top: 32px;
  }

  .hero-visual > img {
    top: 10%;
    right: -7%;
    width: 105%;
    border-radius: 28px;
  }

  .spec-chip {
    min-width: 125px;
    padding: 12px 13px;
  }

  .spec-chip-top {
    top: 8%;
    right: 0;
  }

  .spec-chip-bottom {
    bottom: 6%;
    left: 0;
  }

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

  .trust-bar > div {
    min-height: 110px;
    padding: 25px 20px;
    border-bottom: 1px solid var(--line);
  }

  .trust-bar > div:nth-child(2) {
    border-right: 0;
  }

  .section {
    padding: 100px 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 48px;
  }

  .section-heading h2,
  .product-copy h2,
  .models-section h2,
  .specs-copy h2,
  .setup-heading h2,
  .privacy-copy h2,
  .contact-section h2 {
    font-size: 39px;
  }

  .capability-grid,
  .application-grid,
  .models-section,
  .model-list,
  .steps {
    grid-template-columns: 1fr;
  }

  .capability-card {
    min-height: 250px;
  }

  .capability-card h3 {
    margin-top: 70px;
  }

  .product-image {
    min-height: 480px;
  }

  .product-copy {
    padding: 75px 24px;
  }

  .image-caption span:last-child {
    display: none;
  }

  .application-grid article {
    grid-template-columns: 46px 1fr;
  }

  .models-section {
    gap: 48px;
    padding: 90px 0;
  }

  .model-list span {
    min-height: 82px;
  }

  .specs-section {
    gap: 60px;
  }

  .specs-badge {
    right: 12px;
    bottom: -24px;
  }

  .steps {
    gap: 12px;
  }

  .steps li {
    min-height: 200px;
  }

  .steps h3 {
    margin-top: 58px;
  }

  .privacy-section {
    padding: 95px 0;
  }

  .privacy-points > div {
    grid-template-columns: 38px 1fr;
  }

  .contact-section {
    min-height: 450px;
  }

  footer {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 44px 0 0;
  }

  footer > div {
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}