@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800;900&display=swap");

:root {
  --bg: #07080d;
  --panel: #101117;
  --panel-2: #161820;
  --ink: #f4f2ed;
  --muted: #9b9da5;
  --gold: #f0a928;
  --blue: #415dff;
  --line: rgba(255, 255, 255, 0.14);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--bg);
  font-family: Manrope, "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

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

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

.grain {
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 32px;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 8, 13, 0.82);
  backdrop-filter: blur(18px);
}

.brand,
.topbar nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  font-weight: 800;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, transparent 0 45%, var(--gold) 46% 54%, transparent 55%),
    radial-gradient(circle at 70% 28%, var(--blue) 0 18%, transparent 19%),
    var(--panel);
}

.topbar nav a {
  color: var(--muted);
  font-size: 14px;
}

.topbar nav a:hover {
  color: var(--ink);
}

.hero,
.section,
.strip,
footer {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.93fr) minmax(360px, 1.07fr);
  gap: 44px;
  min-height: calc(100svh - 72px);
  align-items: center;
  padding-top: 72px;
  padding-bottom: 42px;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 800;
}

h1,
h2 {
  margin: 0;
  font-family: "Noto Sans SC", Manrope, sans-serif;
  font-weight: 900;
  line-height: 1.13;
}

h1 {
  max-width: 730px;
  font-size: 64px;
}

h2 {
  font-size: 42px;
}

.lead {
  max-width: 620px;
  margin: 26px 0 0;
  color: #d5d6db;
  font-size: 19px;
}

.body-copy {
  margin: 18px 0 0;
  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
}

.button span {
  color: var(--gold);
  font-size: 20px;
}

.button.primary {
  color: var(--bg);
  background: var(--ink);
}

.button.primary span {
  color: var(--bg);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.04);
}

.button:hover {
  border-color: var(--gold);
}

.hero-visual {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.quick-facts {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.quick-facts div {
  min-height: 112px;
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}

.quick-facts strong {
  display: block;
  font-size: 21px;
}

.quick-facts span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding-top: 26px;
  padding-bottom: 26px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.strip div {
  min-height: 78px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  border-left: 2px solid var(--gold);
  color: #dedee3;
  font-weight: 800;
}

.section {
  padding-top: 88px;
  padding-bottom: 88px;
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(360px, 1.15fr);
  gap: 58px;
  align-items: start;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.steps li {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.steps span {
  color: var(--blue);
  font-weight: 900;
}

.steps p {
  margin: 0;
  color: #e5e4df;
}

.steps code,
.body-copy code {
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--gold);
  background: rgba(255, 255, 255, 0.045);
  font-family: Consolas, "Courier New", monospace;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 58px;
  align-items: end;
  margin-bottom: 34px;
}

.screens {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.screens figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
}

.screens img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: left top;
  border-bottom: 1px solid var(--line);
}

.screens figcaption {
  min-height: 78px;
  padding: 16px;
  color: var(--muted);
  font-size: 14px;
}

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

.boundary-copy {
  display: grid;
  gap: 18px;
}

.boundary-copy p {
  margin: 0;
  padding-left: 18px;
  border-left: 2px solid var(--gold);
  color: #d5d6db;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 116px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

footer a {
  color: var(--ink);
  font-weight: 800;
}

@media (max-width: 900px) {
  .topbar {
    padding: 0 18px;
  }

  .topbar nav {
    display: none;
  }

  .hero,
  .two-col,
  .section-head {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 58px;
  }

  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 34px;
  }

  .lead {
    font-size: 17px;
  }

  .hero-visual {
    min-width: 0;
  }

  .quick-facts,
  .strip,
  .screens {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .hero,
  .section,
  .strip,
  footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 29px;
  }

  .steps li {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 12px;
  }

  footer {
    align-items: flex-start;
    justify-content: center;
    flex-direction: column;
    gap: 10px;
  }
}

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