:root {
  --ink: #f7fbff;
  --muted: #a9bce0;
  --deep: #050b1d;
  --navy: #07173a;
  --blue: #1f5cff;
  --blue-2: #1d8ff2;
  --cyan: #47e4ff;
  --cyan-soft: rgba(71, 228, 255, 0.14);
  --panel: rgba(8, 23, 58, 0.78);
  --line: rgba(151, 205, 255, 0.22);
  --white-line: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--deep);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 78% 5%, rgba(71, 228, 255, 0.2), transparent 28%),
    radial-gradient(circle at 12% 22%, rgba(31, 92, 255, 0.34), transparent 31%),
    linear-gradient(135deg, #040816 0%, #081941 46%, #0a2c6d 100%);
  color: var(--ink);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0 14%, rgba(71, 228, 255, 0.08) 14% 16%, transparent 16% 56%, rgba(255, 255, 255, 0.07) 56% 58%, transparent 58%),
    linear-gradient(145deg, transparent 0 62%, rgba(31, 92, 255, 0.16) 62% 70%, transparent 70%);
  opacity: 0.8;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(20px, 4vw, 64px);
  background: rgba(5, 11, 29, 0.76);
  border-bottom: 1px solid var(--white-line);
  backdrop-filter: blur(18px);
}

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

.brand-logo {
  width: auto;
  height: 28px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: clamp(14px, 3vw, 34px);
  color: #dce8ff;
  font-size: 14px;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--cyan);
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.section-shell {
  position: relative;
  width: min(1440px, calc(100% - 56px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(560px, 0.95fr) minmax(560px, 1.05fr);
  gap: clamp(40px, 4.5vw, 78px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: 70px 0 48px;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(58px, 5.7vw, 92px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: 0;
}

h1 span {
  display: block;
  white-space: nowrap;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 3.4vw, 46px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  font-size: 24px;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 690px;
  margin-bottom: 34px;
  color: #d8e7ff;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.8;
}

.hero-actions,
.cta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.primary-action {
  background: linear-gradient(135deg, var(--cyan), var(--blue-2) 48%, var(--blue));
  color: #03112c;
  box-shadow: 0 16px 42px rgba(32, 163, 255, 0.34);
}

.secondary-action {
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #edf5ff;
  background: rgba(255, 255, 255, 0.04);
}

.primary-action:hover,
.secondary-action:hover,
.primary-action:focus-visible,
.secondary-action:focus-visible {
  transform: translateY(-2px);
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, 820px);
  max-width: 820px;
  margin: 48px 0 0;
  padding: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
  box-shadow: var(--shadow);
}

.metric-strip div {
  min-width: 0;
  min-height: 116px;
  padding: 22px 20px;
  background: rgba(4, 13, 35, 0.86);
}

.metric-strip dt {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
  color: #ffffff;
  font-size: clamp(25px, 1.65vw, 32px);
  font-weight: 900;
  line-height: 1.08;
  white-space: nowrap;
}

.metric-strip dt span {
  display: inline-block;
}

.metric-strip dt em {
  display: inline-block;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.58em;
  font-style: normal;
  font-weight: 900;
  transform: translateY(-0.12em);
}

.metric-strip dd {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.hero-visual {
  position: relative;
  z-index: 1;
  justify-self: stretch;
  isolation: isolate;
}

.hero-visual::before,
.hero-visual::after {
  content: "";
  position: absolute;
  z-index: -1;
  border-radius: 8px;
}

.hero-visual::before {
  inset: -34px 26px 34px -26px;
  border: 1px solid rgba(71, 228, 255, 0.2);
  background: linear-gradient(135deg, rgba(71, 228, 255, 0.08), rgba(31, 92, 255, 0.04));
}

.hero-visual::after {
  width: 72%;
  height: 66%;
  right: -26px;
  top: -40px;
  background: linear-gradient(135deg, rgba(71, 228, 255, 0.22), rgba(31, 92, 255, 0.04));
  filter: blur(10px);
}

.ai-console {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  border: 1px solid rgba(71, 228, 255, 0.28);
  border-radius: 8px;
  background:
    linear-gradient(120deg, rgba(8, 25, 65, 0.92), rgba(15, 80, 139, 0.56)),
    linear-gradient(145deg, #071531 0%, #123a89 56%, #1da8e8 100%);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
}

.ai-console::before,
.ai-console::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.ai-console::before {
  inset: 0;
  background:
    linear-gradient(125deg, transparent 0 22%, rgba(71, 228, 255, 0.12) 22% 25%, transparent 25% 61%, rgba(255, 255, 255, 0.1) 61% 64%, transparent 64%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 72px);
}

.ai-console::after {
  width: 48%;
  height: 48%;
  right: -6%;
  top: -14%;
  background: linear-gradient(135deg, rgba(67, 232, 255, 0.82), rgba(24, 118, 255, 0.16));
  transform: skewX(-24deg);
  filter: drop-shadow(0 18px 34px rgba(64, 222, 255, 0.2));
}

.console-top {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 18px 22px;
  border-bottom: 1px solid rgba(151, 205, 255, 0.18);
  background: rgba(3, 13, 34, 0.34);
}

.console-top span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(71, 228, 255, 0.88);
  box-shadow: 0 0 18px rgba(71, 228, 255, 0.7);
}

.console-top strong {
  margin-left: auto;
  color: rgba(222, 242, 255, 0.82);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.console-body {
  position: relative;
  min-height: 390px;
}

.orbit-core {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 5;
  display: grid;
  place-items: center;
  width: clamp(170px, 18vw, 230px);
  height: clamp(170px, 18vw, 230px);
  border: 1px solid rgba(71, 228, 255, 0.46);
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 22%, rgba(255, 255, 255, 0.28), transparent 24%),
    linear-gradient(135deg, rgba(71, 228, 255, 0.94), rgba(31, 92, 255, 0.88));
  color: #03112c;
  transform: translate(-50%, -50%);
  box-shadow:
    0 0 0 22px rgba(71, 228, 255, 0.045),
    0 0 80px rgba(71, 228, 255, 0.42);
}

.orbit-core span,
.orbit-core strong {
  line-height: 1;
}

.orbit-core span {
  align-self: end;
  font-size: 18px;
  font-weight: 900;
}

.orbit-core strong {
  align-self: start;
  font-size: clamp(68px, 7vw, 104px);
  font-weight: 950;
}

.orbit-line {
  position: absolute;
  left: 50%;
  top: 50%;
  border: 1px solid rgba(119, 224, 255, 0.24);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-14deg);
}

.orbit-a {
  width: 68%;
  height: 68%;
}

.orbit-b {
  width: 84%;
  height: 42%;
  transform: translate(-50%, -50%) rotate(19deg);
}

.orbit-c {
  width: 54%;
  height: 86%;
  transform: translate(-50%, -50%) rotate(39deg);
}

.product-chip {
  position: absolute;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid rgba(71, 228, 255, 0.34);
  border-radius: 8px;
  background: rgba(3, 13, 34, 0.76);
  color: #ffffff;
  font-size: 15px;
  font-weight: 900;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(14px);
}

.product-chip::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(71, 228, 255, 0.8);
}

.chip-one {
  left: 8%;
  top: 22%;
}

.chip-two {
  right: 9%;
  top: 28%;
}

.chip-three {
  left: 12%;
  bottom: 22%;
}

.chip-four {
  right: 12%;
  bottom: 18%;
}

.console-bottom {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0 22px 22px;
  overflow: hidden;
  border: 1px solid rgba(151, 205, 255, 0.22);
  border-radius: 8px;
  background: rgba(151, 205, 255, 0.22);
}

.console-bottom div {
  display: grid;
  gap: 7px;
  min-height: 86px;
  padding: 16px;
  background: rgba(3, 13, 34, 0.72);
}

.console-bottom span {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
}

.console-bottom strong {
  color: #ffffff;
  font-size: 17px;
}

.intro,
.products,
.engine,
.trust,
.cta {
  padding: 86px 0;
}

.section-heading {
  display: grid;
  gap: 12px;
  max-width: 980px;
  margin-bottom: 44px;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  color: #d4e4ff;
  font-size: 17px;
  line-height: 1.9;
}

.intro-grid p {
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.product-card {
  position: relative;
  display: flex;
  min-height: 330px;
  flex-direction: column;
  padding: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 100% 0, rgba(71, 228, 255, 0.14), transparent 28%),
    linear-gradient(160deg, rgba(10, 33, 82, 0.94), rgba(5, 15, 40, 0.92)),
    var(--panel);
}

.product-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--blue-2), transparent 72%);
  pointer-events: none;
}

.product-card.featured {
  background:
    radial-gradient(circle at 100% 0, rgba(71, 228, 255, 0.18), transparent 30%),
    linear-gradient(135deg, rgba(25, 90, 255, 0.28), transparent 42%),
    linear-gradient(160deg, rgba(7, 27, 72, 0.96), rgba(4, 15, 41, 0.94));
}

.product-index {
  color: rgba(71, 228, 255, 0.82);
  font-size: 13px;
  font-weight: 900;
}

.product-card h3 {
  margin: 18px 0 16px;
  font-size: clamp(24px, 2.3vw, 32px);
}

.product-card p {
  max-width: 620px;
  color: #d5e6ff;
  line-height: 1.75;
}

.product-card ul {
  display: grid;
  gap: 9px;
  margin: auto 0 0;
  padding: 0;
  list-style: none;
}

.product-card li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.5;
}

.product-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(71, 228, 255, 0.76);
}

.engine-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.engine-map {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(71, 228, 255, 0.08), transparent 34%),
    linear-gradient(155deg, rgba(31, 92, 255, 0.2), rgba(5, 14, 38, 0.86));
  box-shadow: var(--shadow);
}

.engine-map::before,
.engine-map::after {
  content: "";
  position: absolute;
  inset: 17%;
  border: 1px solid rgba(71, 228, 255, 0.26);
  border-radius: 50%;
}

.engine-map::after {
  inset: 30%;
  border-color: rgba(255, 255, 255, 0.14);
}

.node {
  position: absolute;
  display: grid;
  place-items: center;
  width: 112px;
  height: 112px;
  border: 1px solid rgba(71, 228, 255, 0.42);
  border-radius: 50%;
  background: rgba(5, 16, 42, 0.86);
  color: #ffffff;
  font-weight: 900;
  box-shadow: 0 0 42px rgba(34, 146, 255, 0.28);
}

.node-one {
  left: 10%;
  top: 12%;
}

.node-two {
  right: 14%;
  top: 19%;
}

.node-three {
  left: 20%;
  bottom: 14%;
}

.node-four {
  right: 12%;
  bottom: 17%;
  background: linear-gradient(135deg, rgba(71, 228, 255, 0.94), rgba(31, 92, 255, 0.84));
  color: #03112c;
}

.capability-list {
  display: grid;
  gap: 18px;
}

.capability-list article {
  padding: 26px;
  border-left: 3px solid var(--cyan);
  background: rgba(255, 255, 255, 0.045);
}

.capability-list h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.capability-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.trust-grid article {
  display: grid;
  gap: 14px;
  min-height: 210px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(4, 15, 41, 0.72);
}

.trust-grid strong {
  color: #ffffff;
  font-size: 22px;
}

.trust-grid span {
  color: var(--muted);
  line-height: 1.75;
}

.cta {
  justify-content: space-between;
  margin-bottom: 78px;
  padding: 42px;
  border: 1px solid rgba(71, 228, 255, 0.28);
  border-radius: 8px;
  background:
    linear-gradient(120deg, rgba(31, 92, 255, 0.36), rgba(71, 228, 255, 0.08)),
    rgba(5, 15, 42, 0.9);
}

.cta > div {
  max-width: 880px;
}

.cta h2 {
  max-width: 880px;
  font-size: clamp(30px, 3.2vw, 42px);
  line-height: 1.2;
}

.site-footer {
  position: relative;
  border-top: 1px solid var(--white-line);
  background: #030816;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0;
  color: var(--muted);
}

.footer-inner strong {
  color: #ffffff;
  font-size: 18px;
}

.footer-inner p {
  margin: 10px 0 0;
  line-height: 1.7;
}

.footer-contact {
  display: grid;
  gap: 10px;
  text-align: right;
}

.footer-contact a:hover,
.footer-contact a:focus-visible {
  color: var(--cyan);
}

@media (max-width: 1060px) {
  h2 {
    font-size: clamp(30px, 5vw, 42px);
  }

  .section-heading {
    max-width: 760px;
  }

  .hero,
  .engine-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    width: 100%;
    max-width: none;
    justify-self: stretch;
  }

  .ai-console {
    width: 100%;
    min-height: 0;
  }

  .hero-visual::before,
  .hero-visual::after {
    display: none;
  }

  .console-top {
    padding: 14px 16px;
  }

  .console-body {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    min-height: 0;
    padding: 24px 18px 18px;
  }

  .orbit-core {
    position: relative;
    left: auto;
    top: auto;
    grid-column: 1 / -1;
    width: 168px;
    height: 168px;
    margin: 0 auto 8px;
    transform: none;
  }

  .orbit-core span {
    font-size: 15px;
  }

  .orbit-core strong {
    font-size: 76px;
  }

  .orbit-line {
    display: none;
  }

  .chip-one,
  .chip-two,
  .chip-three,
  .chip-four {
    left: auto;
    right: auto;
    top: auto;
    bottom: auto;
  }

  .product-chip {
    position: relative;
    justify-content: center;
    min-height: 40px;
    padding: 0 10px;
    font-size: 13px;
    white-space: nowrap;
  }

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

  .console-bottom div {
    min-height: 76px;
    padding: 14px;
  }

  .console-bottom strong {
    font-size: 18px;
  }

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

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

  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
    max-width: none;
    margin-top: 34px;
    box-shadow: none;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: relative;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .brand-logo {
    height: 26px;
  }

  .section-shell {
    width: min(100% - 28px, 1180px);
  }

  .hero {
    padding-top: 46px;
  }

  h1 {
    font-size: clamp(42px, 14vw, 62px);
  }

  h2,
  .cta h2 {
    font-size: clamp(28px, 8vw, 36px);
    line-height: 1.22;
  }

  h1 span {
    white-space: normal;
  }

  .metric-strip,
  .intro-grid,
  .product-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    padding: 0;
    overflow: visible;
    border: 0;
    background: transparent;
  }

  .metric-strip div {
    min-height: 94px;
    padding: 18px;
    border: 1px solid rgba(151, 205, 255, 0.24);
    border-radius: 8px;
    background: rgba(4, 13, 35, 0.66);
  }

  .metric-strip dt {
    font-size: 30px;
  }

  .metric-strip dd {
    font-size: 12px;
  }

  .product-card.featured {
    grid-column: auto;
  }

  .product-card {
    min-height: auto;
  }

  .engine-map {
    min-height: 340px;
  }

  .node {
    width: 94px;
    height: 94px;
    font-size: 14px;
  }

  .cta,
  .footer-inner {
    align-items: stretch;
    flex-direction: column;
  }

  .cta {
    padding: 28px;
  }

  .footer-contact {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .site-nav {
    gap: 18px;
    font-size: 13px;
  }

  .hero-copy,
  .intro-grid {
    font-size: 15px;
  }

  .hero-actions a,
  .cta a {
    width: 100%;
  }

  .metric-strip {
    gap: 8px;
    margin-top: 28px;
  }

  .metric-strip div {
    min-height: 86px;
    padding: 14px;
  }

  .metric-strip dt {
    font-size: 26px;
  }

  .orbit-core {
    width: 148px;
    height: 148px;
  }

  .orbit-core strong {
    font-size: 66px;
  }

  .console-bottom {
    margin: 0 14px 14px;
  }

  .console-bottom div {
    padding: 12px;
  }

  .console-bottom strong {
    font-size: 16px;
  }
}