:root {
  --color-primary: #fa520f;
  --color-primary-deep: #cc3a05;
  --color-on-primary: #ffffff;
  --color-sunshine-300: #ffd06a;
  --color-sunshine-500: #ffb83e;
  --color-sunshine-700: #ffa110;
  --color-sunshine-800: #ff8105;
  --color-sunshine-900: #ff8a00;
  --color-yellow-saturated: #ffd900;
  --color-cream: #fff8e0;
  --color-cream-light: #fffaeb;
  --color-cream-deeper: #fff0c2;
  --color-beige-deep: #e6d5a8;
  --color-ink: #1f1f1f;
  --color-ink-tint: #3d3d3d;
  --color-charcoal: #2c2c2c;
  --color-slate: #4a4a4a;
  --color-steel: #6a6a6a;
  --color-stone: #8a8a8a;
  --color-muted: #a8a8a8;
  --color-hairline: #e5e5e5;
  --color-hairline-soft: #ededed;
  --color-hairline-strong: #c7c7c7;
  --color-canvas: #ffffff;
  --color-surface: #fafafa;
  --color-surface-code: #1c1c1e;
  --color-on-dark: #ffffff;
  --color-footer-cream: #fff8e0;
  --color-link: #fa520f;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 12px;
  --rounded-xl: 16px;
  --rounded-xxl: 20px;
  --rounded-full: 9999px;
  --font: Inter, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: "PP Editorial Old", "Times New Roman", Georgia, "Songti SC", serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  font-size: 16px;
  line-height: 1.55;
}
a { color: var(--color-link); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

.promo {
  background: var(--color-ink);
  color: var(--color-on-dark);
  text-align: center;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-hairline-soft);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 64px;
  flex-wrap: wrap;
}
.logo {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--color-ink);
  font-size: 20px;
  letter-spacing: 0.04em;
}
.logo:hover { text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 20px; flex: 1; }
.nav a { color: var(--color-ink); font-size: 14px; font-weight: 500; }
.nav a.on { color: var(--color-primary); }
.back { margin-left: auto; font-size: 13px; color: var(--color-steel); }

.hero {
  background: linear-gradient(135deg, var(--color-sunshine-700) 0%, var(--color-sunshine-900) 55%, var(--color-primary) 100%);
  padding: 120px 0 96px;
}
.hero .inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.hero h1 {
  font-family: var(--font-display);
  font-size: 84px;
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin: 0 0 16px;
  color: var(--color-ink);
}
.hero p {
  margin: 0 0 28px;
  color: var(--color-ink-tint);
  font-size: 18px;
  max-width: 36em;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-photo {
  background: rgba(31,31,31,0.18);
  color: rgba(255,255,255,0.7);
  min-height: 280px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

.btn, form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 20px;
  border: 0;
  border-radius: var(--rounded-md);
  cursor: pointer;
}
.btn:hover, form button:hover { text-decoration: none; background: var(--color-primary-deep); color: #fff; }
.btn-dark { background: var(--color-ink); color: #fff; }
.btn-dark:hover { background: var(--color-charcoal); color: #fff; }
.btn-secondary {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-hairline-strong);
}
.btn-secondary:hover { background: var(--color-cream); color: var(--color-ink); }
.btn-cream {
  background: var(--color-cream);
  color: var(--color-ink);
  border: 1px solid var(--color-beige-deep);
}

.section { padding: 96px 0; }
.section h2 {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 400;
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin: 0 0 32px;
}
.section h3.ui { font-family: var(--font); font-size: 22px; font-weight: 500; }
.muted { color: var(--color-slate); max-width: 46em; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.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-soft);
  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-slate); font-size: 14px; }
.card.cream {
  background: var(--color-cream);
  border: 1px solid var(--color-beige-deep);
}
.card.featured {
  background: var(--color-cream);
  border: 2px solid var(--color-primary);
}
.card.stat { border: 0; padding: 20px; }
.card.stat h3 {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 400;
  letter-spacing: -1px;
}

.code {
  background: var(--color-surface-code);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 14px;
  border-radius: var(--rounded-md);
  padding: 16px;
}

.cta-cream {
  background: var(--color-cream);
  border-radius: var(--rounded-lg);
  padding: 64px;
}
.cta-cream h2 { margin: 0 0 16px; }

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

.list { list-style: none; margin: 0; padding: 0; }
.list li { border-bottom: 1px solid var(--color-hairline); padding: 20px 0; font-weight: 500; }
.list .date { color: var(--color-steel); font-size: 13px; font-weight: 400; margin-right: 12px; }

.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-steel);
  margin: 0 0 8px;
}

form label { display: block; margin: 0 0 4px; font-size: 14px; font-weight: 500; }
form input, form textarea {
  width: 100%;
  max-width: 480px;
  height: 44px;
  padding: 12px 16px;
  border: 1px solid var(--color-hairline-strong);
  background: var(--color-canvas);
  color: var(--color-ink);
  font: inherit;
  margin-bottom: 12px;
  border-radius: var(--rounded-md);
}
form textarea { height: auto; min-height: 110px; }
form input:focus, form textarea:focus {
  outline: none;
  border: 2px solid var(--color-primary);
}
.form-panel {
  background: var(--color-cream);
  border: 1px solid var(--color-beige-deep);
  border-radius: var(--rounded-lg);
  padding: 32px;
}

.sunset {
  height: 20px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-sunshine-700), var(--color-sunshine-500), var(--color-yellow-saturated), var(--color-cream));
}

.footer {
  background: var(--color-footer-cream);
  color: var(--color-ink);
  padding: 64px 0 40px;
  font-size: 14px;
}
.footer-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.footer h4 { margin: 0 0 12px; font-size: 14px; font-weight: 500; }
.footer a { color: var(--color-primary); display: block; padding: 4px 0; }

@media (max-width: 1024px) {
  .hero h1 { font-size: 52px; }
  .hero .inner { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
  .hero h1 { font-size: 40px; }
  .section h2 { font-size: 32px; }
  .grid, .grid-2, .grid-4, .footer-grid { grid-template-columns: 1fr; }
  .cta-cream { padding: 32px; }
}

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