:root {
  --color-primary: #1c1c1e;
  --color-on-primary: #ffffff;
  --color-brand-yellow: #ffd02f;
  --color-brand-yellow-deep: #fcb900;
  --color-yellow-light: #fff4c4;
  --color-yellow-dark: #746019;
  --color-brand-blue: #4262ff;
  --color-blue-pressed: #2a41b6;
  --color-brand-coral: #ff9999;
  --color-coral-light: #ffc6c6;
  --color-coral-dark: #600000;
  --color-brand-rose: #ffd8f4;
  --color-rose-light: #fde0f0;
  --color-brand-teal: #0fbcb0;
  --color-teal-light: #c3faf5;
  --color-moss-dark: #187574;
  --color-brand-orange-light: #ffe6cd;
  --color-success-accent: #00b473;
  --color-canvas: #ffffff;
  --color-surface: #f7f8fa;
  --color-surface-yellow: #fff8e0;
  --color-surface-pricing-featured: #f5f3ff;
  --color-hairline: #e0e2e8;
  --color-hairline-soft: #eef0f3;
  --color-hairline-strong: #c7cad5;
  --color-ink-deep: #050038;
  --color-ink: #1c1c1e;
  --color-charcoal: #2c2c34;
  --color-slate: #555a6a;
  --color-steel: #6b6f7e;
  --color-stone: #8e91a0;
  --color-muted: #a5a8b5;
  --color-on-dark: #ffffff;
  --color-on-dark-muted: #a5a8b5;
  --color-footer-bg: #1c1c1e;
  --rounded-xs: 4px;
  --rounded-sm: 6px;
  --rounded-md: 8px;
  --rounded-lg: 12px;
  --rounded-xl: 16px;
  --rounded-xxl: 20px;
  --rounded-xxxl: 28px;
  --rounded-feature: 32px;
  --rounded-full: 9999px;
  --space-xl: 24px;
  --space-xxl: 32px;
  --space-section: 64px;
  --space-section-lg: 96px;
  --space-hero: 120px;
  --font: "Roobert PRO", "Noto Sans", system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  font-size: 16px;
  line-height: 1.5;
}
a { color: var(--color-brand-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

.promo {
  background: var(--color-primary);
  color: var(--color-on-primary);
  text-align: center;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
}
.promo .chip {
  display: inline-block;
  background: var(--color-brand-yellow);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--rounded-full);
  margin-left: 8px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-canvas);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 64px;
  flex-wrap: wrap;
}
.logo {
  font-weight: 500;
  color: var(--color-primary);
  font-size: 22px;
  background: var(--color-brand-yellow);
  padding: 6px 12px;
  border-radius: 8px;
  letter-spacing: -0.4px;
}
.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-ink-deep); }
.back { margin-left: auto; font-size: 13px; color: var(--color-steel); }

.hero {
  padding: var(--space-hero) 0 64px;
  text-align: center;
}
.hero h1 {
  font-size: 80px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -2px;
  margin: 0 auto 16px;
  max-width: 16ch;
  color: var(--color-ink-deep);
}
.hero p {
  margin: 0 auto 28px;
  color: var(--color-slate);
  font-size: 18px;
  max-width: 40em;
}
.hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }

.board {
  background: var(--color-canvas);
  border: 1px solid var(--color-hairline-soft);
  border-radius: var(--rounded-xl);
  box-shadow: rgba(5, 0, 56, 0.08) 0px 12px 32px -4px;
  min-height: 240px;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.note {
  border-radius: 4px;
  padding: 16px;
  min-height: 88px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink-deep);
}
.n-y { background: var(--color-brand-yellow); }
.n-r { background: var(--color-coral-light); }
.n-t { background: var(--color-teal-light); }
.n-p { background: var(--color-rose-light); }

.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: 12px 24px;
  border: 0;
  border-radius: var(--rounded-full);
  cursor: pointer;
}
.btn:hover, form button:hover { text-decoration: none; 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-surface); color: var(--color-ink); }
.btn-on-dark { background: var(--color-on-dark); color: var(--color-primary); }
.btn-on-dark:hover { background: var(--color-surface); color: var(--color-primary); }

.section { padding: var(--space-section-lg) 0; }
.section h2 {
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin: 0 0 32px;
  color: var(--color-ink-deep);
}
.muted { color: var(--color-slate); max-width: 46em; }

.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-3 { 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-soft);
  border-radius: var(--rounded-xxxl);
  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.stat { border: 0; padding: 20px; }
.card.stat h3 { font-size: 64px; letter-spacing: -1.5px; line-height: 1.1; }

.pastel-y { background: var(--color-brand-yellow); border: 0; }
.pastel-c { background: var(--color-coral-light); border: 0; }
.pastel-t { background: var(--color-teal-light); border: 0; }
.pastel-r { background: var(--color-rose-light); border: 0; }
.pastel-y h3, .pastel-c h3, .pastel-t h3, .pastel-r h3,
.pastel-y p, .pastel-c p, .pastel-t p, .pastel-r p { color: var(--color-primary); }

.price-card { border-radius: var(--rounded-xl); padding: 32px; border: 1px solid var(--color-hairline); }
.price-card.featured {
  background: var(--color-surface-pricing-featured);
  border: 2px solid var(--color-brand-blue);
}
.price-card.ent { background: var(--color-primary); color: #fff; border: 0; }
.price-card.ent h3, .price-card.ent p { color: #fff; }

.cta-dark {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--rounded-feature);
  padding: 64px;
  text-align: center;
}
.cta-dark h2 { color: #fff; margin: 0 0 12px; }

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

.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; }

.tag {
  display: inline-block;
  background: var(--color-surface-yellow);
  color: var(--color-yellow-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--rounded-full);
}

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-brand-blue);
}

.footer {
  background: var(--color-footer-bg);
  color: var(--color-on-dark);
  padding: 64px 0 40px;
  font-size: 14px;
}
.footer-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 24px; }
.footer h4 { margin: 0 0 12px; font-size: 16px; font-weight: 500; }
.footer a { color: var(--color-on-dark-muted); display: block; padding: 4px 0; }

@media (max-width: 1024px) {
  .hero h1 { font-size: 48px; }
  .grid, .board { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
  .hero h1 { font-size: 36px; letter-spacing: -1px; }
  .grid, .grid-3, .grid-2, .board, .footer-grid { grid-template-columns: 1fr; }
  .cta-dark { padding: 32px; }
}

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