:root {
  --color-primary: #00d992;
  --color-primary-soft: #2fd6a1;
  --color-primary-deep: #10b981;
  --color-on-primary: #101010;
  --color-ink: #f2f2f2;
  --color-ink-strong: #ffffff;
  --color-body: #bdbdbd;
  --color-mute: #8b949e;
  --color-hairline: #3d3a39;
  --color-hairline-soft: #b8b3b0;
  --color-canvas: #101010;
  --color-canvas-soft: #1a1a1a;
  --color-canvas-text-soft: #f5f6f7;
  --rounded-none: 0px;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-pill: 9999px;
  --rounded-full: 9999px;
  --space-xxs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;
  --space-4xl: 40px;
  --space-5xl: 48px;
  --space-6xl: 64px;
  --font: Inter, system-ui, Segoe UI, PingFang SC, Microsoft YaHei, sans-serif;
  --font-mono: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.65;
  font-size: 16px;
}
a { color: var(--color-primary-deep); text-decoration: none; }
a:hover { color: var(--color-primary); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 var(--space-3xl); }

.header {
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline);
}
.header-inner {
  display: flex; align-items: center; gap: 24px;
  min-height: 64px; flex-wrap: wrap;
  padding: 12px 0;
}
.logo {
  color: var(--color-ink-strong); font-weight: 600; font-size: 16px;
  display: flex; align-items: center; gap: 8px; letter-spacing: -0.02em;
}
.logo:hover { text-decoration: none; color: var(--color-ink-strong); }
.bolt {
  color: var(--color-primary); font-size: 18px;
}
.nav { display: flex; flex-wrap: wrap; gap: 4px 18px; flex: 1; }
.nav a { color: var(--color-body); font-size: 14px; }
.nav a.on { color: var(--color-ink-strong); font-weight: 600; }
.back { margin-left: auto; font-size: 12px; color: var(--color-mute); }

.hero {
  padding: 64px 0 72px;
  border-bottom: 1px dashed rgba(79, 93, 117, 0.4);
}
.hero .eyebrow {
  font-size: 14px; font-weight: 600; letter-spacing: 2.52px;
  text-transform: uppercase; color: var(--color-primary);
  margin: 0 0 16px;
}
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 6vw, 60px);
  font-weight: 400; line-height: 1;
  letter-spacing: -0.65px;
  color: var(--color-ink-strong);
  max-width: 16ch;
}
.hero p { margin: 0 0 24px; color: var(--color-body); max-width: 40em; font-size: 18px; line-height: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.code-chip {
  font-family: var(--font-mono);
  background: var(--color-canvas-soft);
  color: var(--color-canvas-text-soft);
  border-radius: var(--rounded-sm);
  padding: 2px 8px;
  font-size: 13px;
}

.btn {
  display: inline-block;
  padding: 12px 16px;
  border-radius: var(--rounded-sm);
  font: inherit; font-size: 16px; font-weight: 600; line-height: 24px;
  cursor: pointer; border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn-outline {
  background: transparent; color: var(--color-ink);
  border-color: var(--color-hairline);
}
.btn-ghost { background: transparent; color: var(--color-primary-soft); }

.section { padding: 48px 0; border-bottom: 1px dashed rgba(79, 93, 117, 0.4); }
.section h2 {
  font-size: 36px; font-weight: 400; line-height: 40px;
  letter-spacing: -0.9px; margin: 0 0 24px; color: var(--color-ink-strong);
}
.eyebrow {
  font-size: 14px; font-weight: 600; letter-spacing: 2.52px;
  text-transform: uppercase; color: var(--color-mute); margin: 0 0 8px;
}
.muted { color: var(--color-body); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: 24px;
}
.card.live { border-color: var(--color-primary); border-width: 2px; }
.card h3 { margin: 0 0 8px; font-size: 20px; font-weight: 600; color: var(--color-ink-strong); }
.card p { margin: 0; color: var(--color-body); font-size: 14px; }
.card.stat h3 {
  font-family: var(--font-mono); font-size: 24px; font-weight: 400; color: var(--color-primary);
}
.pill {
  display: inline-block; border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-pill); padding: 4px 12px;
  font-size: 12px; color: var(--color-ink); margin-bottom: 8px;
}
.pill.live { color: var(--color-on-primary); background: var(--color-primary); border-color: var(--color-primary); }

.code-mockup {
  background: var(--color-canvas-soft);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: 20px;
  font-family: var(--font-mono); font-size: 13px; line-height: 18px;
  color: var(--color-canvas-text-soft);
  overflow: auto;
}
.code-mockup .g { color: var(--color-primary); }

.list { list-style: none; margin: 0; padding: 0; }
.list li { border-bottom: 1px solid var(--color-hairline); padding: 12px 0; }
.list li:last-child { border-bottom: 0; }
.list .date { color: var(--color-mute); font-size: 12px; margin-right: 12px; font-family: var(--font-mono); }

.ph {
  background: var(--color-canvas-soft); color: var(--color-mute);
  height: 140px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; margin-bottom: 12px; border-radius: var(--rounded-md);
  border: 1px solid var(--color-hairline);
}

form label { display: block; margin: 0 0 4px; font-size: 14px; color: var(--color-body); }
form input, form textarea {
  width: 100%; max-width: 480px; padding: 12px 16px;
  border: 1px solid var(--color-hairline); border-radius: var(--rounded-sm);
  font: inherit; margin-bottom: 12px;
  background: var(--color-canvas-soft); color: var(--color-ink);
}
form button { background: var(--color-primary); color: var(--color-on-primary); border: 0; }

.green-band {
  height: 2px; background: var(--color-primary); border: 0; margin: 0;
}

.footer {
  background: var(--color-canvas); color: var(--color-body);
  padding: 40px 0 56px; font-size: 14px;
}
.footer p { margin: 0 0 6px; }

@media (max-width: 720px) {
  .grid, .grid-2 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .section h2 { font-size: 24px; }
  .wrap { padding: 0 16px; }
}

.ph { overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }