:root {
  --ink: #14171a;
  --muted: #58616d;
  --line: #d9dee7;
  --paper: #f6f7f4;
  --white: #ffffff;
  --graphite: #20262d;
  --cyan: #11b7c9;
  --amber: #f2a51a;
  --coral: #e85b4f;
  --green: #6ea64d;
  --shadow: 0 20px 60px rgba(27, 34, 43, 0.14);
  font-family: "Inter", "Noto Sans CJK SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}

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

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  color: var(--ink);
  background: rgba(246, 247, 244, 0.9);
  border-bottom: 1px solid rgba(20, 23, 26, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background:
    linear-gradient(135deg, var(--cyan), transparent 62%),
    linear-gradient(315deg, var(--amber), transparent 58%),
    var(--graphite);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28);
}

.navlinks {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  color: #2e353d;
  font-size: 14px;
  font-weight: 650;
  flex-wrap: wrap;
}

.navlinks a {
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.navlinks a:hover {
  border-color: var(--accent, var(--cyan));
}

.hero {
  position: relative;
  min-height: 72vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  isolation: isolate;
  color: var(--white);
  background-image: var(--hero-image);
  background-size: cover;
  background-position: center;
}

.hero-robotmac {
  background-image: url("./assets/robot-mac-core.png");
}

.hero-cloud {
  background-image: url("./assets/cloud-training-loop.png");
}

.hero-train-router {
  background-image: url("./assets/train-router.png");
}

.hero-teleop {
  background-image: url("./assets/teleop-studio.png");
}

.hero-skill {
  background-image: url("./assets/skill-marketplace.png");
}

.hero-kit {
  background-image: url("./assets/industry-kit.png");
}

.hero-dragonworks {
  background-image: url("./assets/dragonworks-dashboard.png");
}

.hero-edgefleet {
  background-image: url("./assets/edgefleet-ops.png");
}

.hero-eduforge {
  background-image: url("./assets/eduforge-kit.png");
}

.hero-judge {
  background-image: url("./assets/judge-deck-hero.png");
}

.hero-cloudplan {
  background-image: url("./assets/cloud-training-loop.png");
}

.hero-hardwaremap {
  background-image: url("./assets/robot-mac-core.png");
}

.hero-businesscase {
  background-image: url("./assets/business-case-flywheel.png");
}

.hero-submission {
  background-image: url("./assets/judge-deck-hero.png");
}

.hero-verticals {
  background-image: url("./assets/vertical-playbooks.png");
}

.hero-dataflywheel {
  background-image: url("./assets/data-flywheel.png");
}

.hero-safetyops {
  background-image: url("./assets/safety-ops.png");
}

.hero-dualcloud {
  background-image: url("./assets/dual-cloud-ops.png");
}

.hero-revenuestack {
  background-image: url("./assets/revenue-stack.png");
}

.hero-app-layer {
  background-image: url("./assets/robot-app-layer.png");
}

.hero-labforgepilot {
  background-image: url("./assets/labforge-pilot.png");
}

.hero-edge-runtime {
  background-image: url("./assets/edge-runtime-bench.png");
}

.hero-board-bringup {
  background-image: url("./assets/board-bringup-kit.png");
}

.hero-pilot-contract {
  background-image: url("./assets/pilot-contract-kit.png");
}

.hero-skill-cert {
  background-image: url("./assets/skill-cert-kit.png");
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(10, 13, 17, 0.88) 0%, rgba(10, 13, 17, 0.62) 42%, rgba(10, 13, 17, 0.12) 100%),
    linear-gradient(0deg, rgba(10, 13, 17, 0.62) 0%, rgba(10, 13, 17, 0) 42%);
}

.hero--hub {
  min-height: 58vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 30%, rgba(17, 183, 201, 0.24), transparent 28%),
    radial-gradient(circle at 85% 22%, rgba(232, 91, 79, 0.2), transparent 26%),
    linear-gradient(135deg, #f5f7f6, #e8ece8 55%, #f9f6ee);
}

.hero--hub::before {
  display: none;
}

.hero-inner {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 98px 0 76px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent, var(--cyan));
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #9ff4ff;
}

.hero--hub .eyebrow {
  color: var(--coral);
}

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

h1 {
  max-width: 880px;
  margin-bottom: 18px;
  font-size: clamp(42px, 7vw, 94px);
  line-height: 0.98;
  letter-spacing: 0;
}

.long-word-title {
  font-size: 76px;
  white-space: nowrap;
  overflow-wrap: normal;
}

.hero-lede {
  max-width: 760px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(18px, 2.2vw, 25px);
  line-height: 1.52;
  font-weight: 520;
}

.hero--hub .hero-lede {
  color: #35404a;
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border-radius: 6px;
  font-weight: 780;
  border: 1px solid rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
}

.button.primary {
  border-color: transparent;
  background: var(--accent, var(--cyan));
  color: #071013;
}

.hero--hub .button {
  color: var(--ink);
  border-color: rgba(20, 23, 26, 0.18);
  background: rgba(255, 255, 255, 0.68);
}

.hero--hub .button.primary {
  color: var(--white);
  background: var(--graphite);
}

.slide {
  padding: clamp(58px, 8vw, 104px) 0;
}

.slide.dark {
  color: var(--white);
  background: var(--graphite);
}

.slide.white {
  background: var(--white);
}

.slide.tint {
  background: #ecf0ec;
}

.wrap {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.section-head {
  display: grid;
  grid-template-columns: 0.64fr 1fr;
  gap: clamp(24px, 5vw, 70px);
  align-items: end;
  margin-bottom: 34px;
}

.kicker {
  color: var(--accent, var(--cyan));
  font-size: 13px;
  font-weight: 860;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4.3vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-head p,
.lead {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.74;
}

.dark .section-head p,
.dark .lead {
  color: rgba(255, 255, 255, 0.75);
}

.grid {
  display: grid;
  gap: 16px;
}

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

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.five {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.grid.six {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.card {
  min-height: 100%;
  padding: 22px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid rgba(20, 23, 26, 0.09);
  box-shadow: 0 12px 34px rgba(25, 32, 38, 0.08);
}

.dark .card {
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.card h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.25;
}

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

.dark .card p {
  color: rgba(255, 255, 255, 0.72);
}

.stat {
  padding: 22px;
  border-radius: 8px;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0)),
    var(--graphite);
  border-left: 6px solid var(--accent, var(--cyan));
}

.stat strong {
  display: block;
  margin-bottom: 6px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
}

.stat span {
  color: rgba(255, 255, 255, 0.74);
}

.image-band {
  margin-top: 34px;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
  background: #dfe4e7;
}

.image-band img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  counter-reset: step;
}

.step {
  position: relative;
  min-height: 160px;
  padding: 18px;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid rgba(20, 23, 26, 0.1);
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  margin-bottom: 28px;
  color: var(--accent, var(--cyan));
  font-weight: 900;
}

.step h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.quote {
  margin: 0;
  padding: 0;
  color: var(--ink);
  font-size: clamp(24px, 3.2vw, 42px);
  line-height: 1.28;
  font-weight: 820;
  letter-spacing: 0;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(24px, 5vw, 70px);
  align-items: center;
}

.split .visual {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.split .visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

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

.list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  align-items: start;
  color: var(--muted);
}

.list li::before {
  content: "";
  width: 16px;
  height: 16px;
  margin-top: 6px;
  border-radius: 4px;
  background: var(--accent, var(--cyan));
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.source-links a {
  padding: 7px 10px;
  border-radius: 6px;
  color: #28313a;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(20, 23, 26, 0.09);
  font-size: 13px;
  font-weight: 680;
}

.deck-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.deck-card {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border-radius: 8px;
  color: var(--white);
  box-shadow: var(--shadow);
  background: var(--graphite);
}

.deck-card img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  opacity: 0.76;
}

.deck-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(6, 9, 12, 0.86), rgba(6, 9, 12, 0.08));
}

.deck-card-content {
  position: absolute;
  inset: auto 0 0;
  z-index: 1;
  padding: 22px;
}

.deck-card h3 {
  margin-bottom: 8px;
  font-size: 25px;
  line-height: 1.16;
}

.deck-card p {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.78);
}

.deck-card .button {
  min-height: 38px;
  padding: 8px 12px;
  font-size: 14px;
}

.footer {
  padding: 34px clamp(18px, 4vw, 56px);
  color: rgba(255, 255, 255, 0.68);
  background: #11161b;
  font-size: 14px;
}

.footer a {
  color: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
}

.tone-cyan {
  --accent: var(--cyan);
}

.tone-amber {
  --accent: var(--amber);
}

.tone-coral {
  --accent: var(--coral);
}

.tone-green {
  --accent: var(--green);
}

@media (max-width: 980px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .section-head,
  .split {
    grid-template-columns: 1fr;
  }

  .long-word-title {
    font-size: 50px;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .grid.four,
  .grid.five,
  .grid.six,
  .deck-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 640px) {
  .topbar {
    position: static;
  }

  .navlinks {
    justify-content: flex-start;
    gap: 12px;
  }

  .hero {
    min-height: 70vh;
    background-position: 55% center;
  }

  .hero-inner {
    padding: 72px 0 54px;
  }

  h1 {
    font-size: 40px;
    line-height: 1.06;
  }

  .long-word-title {
    font-size: 33px;
  }

  .hero-lede,
  .section-head p,
  .lead {
    font-size: 16px;
  }

  .grid.two,
  .grid.three,
  .grid.four,
  .grid.five,
  .grid.six,
  .deck-grid,
  .pipeline {
    grid-template-columns: 1fr;
  }

  .deck-card,
  .deck-card img {
    min-height: 300px;
  }

  .image-band img {
    aspect-ratio: 4 / 3;
  }
}