:root {
  --color-primary: #3ecf8e;
  --color-primary-deep: #24b47e;
  --color-primary-soft: #4ade80;
  --color-ink: #171717;
  --color-ink-secondary: #212121;
  --color-ink-mute: #707070;
  --color-ink-mute-2: #9a9a9a;
  --color-ink-faint: #b2b2b2;
  --color-on-primary: #171717;
  --color-on-dark: #ffffff;
  --color-canvas: #ffffff;
  --color-canvas-soft: #fafafa;
  --color-canvas-night: #1c1c1c;
  --color-canvas-night-soft: #202020;
  --color-hairline: #dfdfdf;
  --color-hairline-strong: #c7c7c7;
  --color-hairline-cool: #ededed;
  --font-display: Circular, "Helvetica Neue", Helvetica, Arial, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: Circular, "Helvetica Neue", Helvetica, Arial, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 12px;
  --rounded-xl: 16px;
  --rounded-full: 9999px;
  --space-xxs: 2px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-xxl: 32px;
  --space-huge: 64px;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-canvas);
  font-size: 16px;
  line-height: 1.5;
}
a { color: var(--color-ink); text-decoration: underline; }
a:hover { color: var(--color-ink-secondary); }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

.header {
  background: var(--color-canvas);
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--color-hairline-cool);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 64px;
  flex-wrap: wrap;
  padding: 16px 0;
}
.logo {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-ink);
  font-size: 20px;
  letter-spacing: -0.4px;
  text-decoration: none;
}
.logo:hover { text-decoration: none; }
.logo span { color: var(--color-primary); }
.nav { display: flex; flex-wrap: wrap; gap: 4px 18px; flex: 1; }
.nav a { color: var(--color-ink); text-decoration: none; font-size: 14px; }
.nav a.on { font-weight: 500; }
.header-actions { display: flex; gap: 10px; align-items: center; }
.back { font-size: 13px; color: var(--color-ink-mute); text-decoration: none; }

.btn,
form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: 0;
  border-radius: var(--rounded-sm);
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover,
form button:hover { background: var(--color-primary-deep); text-decoration: none; color: var(--color-on-primary); }
.btn-lavender,
.btn-outline {
  background: var(--color-canvas);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline-strong);
}
.btn-lavender:hover,
.btn-outline:hover { color: var(--color-ink); background: var(--color-canvas-soft); }
.btn-on-dark {
  background: var(--color-canvas-night);
  color: var(--color-on-dark);
}
.btn-ghost-on-dark {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.hero {
  padding: 80px 0 64px;
  background: var(--color-canvas);
}
.hero .wrap { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center; }
.eyebrow {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: var(--rounded-full);
  margin-bottom: 16px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -1.92px;
  margin: 0 0 16px;
}
.hero p { margin: 0 0 24px; color: var(--color-ink-mute); font-size: 18px; line-height: 1.55; max-width: 36em; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-visual .ph {
  height: 280px;
  margin: 0;
  border-radius: var(--rounded-lg);
  background: var(--color-canvas-night);
  color: #8a8a8a;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.code {
  font-family: var(--font-mono);
  background: var(--color-canvas-night);
  color: var(--color-on-dark);
  border-radius: var(--rounded-sm);
  padding: 16px;
  font-size: 14px;
  line-height: 1.5;
  overflow: auto;
}
.code .g { color: var(--color-primary); }

.section { padding: 80px 0; }
.section.soft { background: var(--color-canvas-soft); }
.section h2 {
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.72px;
  line-height: 1.15;
  margin: 0 0 28px;
}
.muted { color: var(--color-ink-mute); }
.lead { font-size: 18px; line-height: 1.55; max-width: 44em; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

.card {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: 32px;
}
.card h3 { margin: 0 0 8px; font-size: 22px; font-weight: 500; }
.card p { margin: 0; color: var(--color-ink-mute); }
.card-cream { background: var(--color-canvas-soft); }
.card-featured {
  background: var(--color-canvas-night);
  color: var(--color-on-dark);
  border: 0;
}
.card-featured h3 { color: #fff; }
.card-featured p { color: #b2b2b2; }

.stat h3 {
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.72px;
  margin: 0 0 8px;
}

.band {
  background: var(--color-canvas-night);
  color: #fff;
  padding: 80px 0;
}
.band h2 { color: #fff; }
.band p { color: #b2b2b2; }
.band a:not(.btn) { color: #fff; }

.list { list-style: none; margin: 0; padding: 0; }
.list li {
  border-bottom: 1px solid var(--color-hairline);
  padding: 16px 0;
  display: flex;
  gap: 16px;
}
.list .date { color: var(--color-ink-mute); font-size: 13px; min-width: 7em; }

.ph {
  background: var(--color-hairline-cool);
  color: var(--color-ink-mute-2);
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  margin-bottom: 12px;
  border-radius: var(--rounded-lg);
}

form label { display: block; margin: 0 0 4px; font-size: 13px; }
form input,
form textarea {
  width: 100%;
  max-width: 480px;
  padding: 8px 12px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-sm);
  font: inherit;
  margin-bottom: 12px;
  background: #fff;
  color: var(--color-ink);
}
form input:focus,
form textarea:focus { outline: 2px solid var(--color-primary); }

.footer {
  background: var(--color-canvas);
  color: var(--color-ink-mute);
  padding: 64px 24px 48px;
  font-size: 13px;
  border-top: 1px solid var(--color-hairline-cool);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer a { color: var(--color-ink-mute); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footer p { margin: 0 0 8px; }
.footer strong { color: var(--color-ink); font-weight: 500; font-size: 16px; }
.legal { color: var(--color-ink-mute-2); }

@media (max-width: 900px) {
  .hero h1 { font-size: 36px; letter-spacing: -0.72px; }
  .hero .wrap, .grid, .grid-2, .grid-4, .footer-grid { grid-template-columns: 1fr; }
}

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