:root {
  color-scheme: light;
  --bg: #f7f8fc;
  --card: #fff;
  --ink: #111318;
  --muted: #5f6573;
  --faint: #8b91a0;
  --line: #e6e8ef;
  --line-strong: #d5d8e2;
  --accent: #4f6dff;
  --accent-2: #8a5cff;
  --accent-ink: #3d54e6;
  --accent-soft: rgba(79, 109, 255, .12);
  --grad: linear-gradient(135deg, #3d7bff 0%, #6a5cff 52%, #c04dff 100%);
  --shadow: 0 18px 40px rgba(47, 62, 140, .08);
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --nav-h: 64px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: #f7f8fc;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  line-height: 1.7;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 420px at 12% -8%, rgba(61, 123, 255, .22), transparent 58%),
    radial-gradient(760px 380px at 92% 0%, rgba(192, 77, 255, .16), transparent 60%),
    #f7f8fc;
}
::selection { background: rgba(79, 109, 255, .16); }
[v-cloak] { display: none !important; }
img { max-width: 100%; border: 0; -webkit-user-drag: none; }
a { color: var(--accent-ink); text-decoration: none; }
button, input, label { font: inherit; }

.wrap { width: min(100% - 40px, 980px); margin: 0 auto; }

.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  height: calc(var(--nav-h) + var(--safe-top));
  padding-top: var(--safe-top);
  background: rgba(247, 248, 252, .78);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
}
.nav-inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 620;
  font-size: 16px;
  letter-spacing: -.02em;
}
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  object-fit: cover;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  color: var(--muted);
  font-size: 14px;
  padding: 8px 10px;
}
.nav-links a:hover,
.nav-links a.is-on { color: var(--ink); }
.nav-cta {
  display: inline-flex !important;
  align-items: center;
  min-height: 34px;
  padding: 0 14px !important;
  border-radius: 10px !important;
  background: var(--grad) !important;
  color: #fff !important;
  font-size: 13px;
}

.hero {
  padding: 88px 0 8px;
  background: none;
  color: inherit;
  box-shadow: none;
  width: auto;
  margin: 0;
  border-radius: 0;
}
.hero-veil { display: none; }
.hero-grid { display: block; }
.kicker {
  margin: 0 0 16px;
  color: var(--accent-ink);
  font-size: 13px;
  background: none;
  letter-spacing: 0;
  text-transform: none;
}
.hero h1,
.hero-copy h1 {
  margin: 0;
  max-width: 12em;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: -.04em;
}
.hero h1 em,
.hero-copy h1 em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead,
.hero .lead {
  margin: 20px 0 0;
  max-width: 32em;
  color: var(--muted);
  font-size: 17px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  font-size: 15px;
}
.btn-ink {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 10px 24px rgba(90, 92, 255, .22);
}
.btn-ghost {
  background: #fff;
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.section { padding: 72px 0; }
.section h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -.03em;
}
.section .sub {
  margin: 0 0 28px;
  max-width: 36em;
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.steps li { padding-top: 16px; border-top: 1px solid var(--line); }
.steps span {
  display: block;
  margin-bottom: 10px;
  color: var(--accent-ink);
  font-size: 13px;
  background: none;
  letter-spacing: 0;
}
.steps b { display: block; margin-bottom: 6px; font-size: 16px; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 20px;
}
.card::before { display: none; }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card .code { display: none; }

.product, .preview, .hero-meta, .specs, .cta-band, .notes { display: none; }

.site-foot {
  padding: 36px 0 calc(28px + var(--safe-bottom));
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 13px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.6fr .7fr .7fr;
  gap: 24px;
  margin-bottom: 20px;
}
.site-foot h4 { margin: 0 0 10px; color: var(--ink); font-size: 13px; }
.site-foot p { margin: 0; max-width: 36em; }
.site-foot a { display: block; color: var(--muted); padding: 3px 0; }
.site-foot a:hover { color: var(--ink); }
.site-foot .copy { margin: 0; font-size: 12px; }

@media (max-width: 800px) {
  .wrap { width: min(100% - 24px, 980px); }
  .hero { padding: 44px 0 0; }
  .hero h1, .hero-copy h1 { max-width: none; }
  .nav-links a:not(.nav-cta) { display: none; }
  .section { padding: 48px 0; }
  .steps, .grid-3, .foot-grid { grid-template-columns: 1fr; }
}